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 Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #include "avio_internal.h"
33 #include "libavcodec/get_bits.h"
34 #include "libavcodec/put_bits.h"
35 #include "libavcodec/vc1.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/intfloat.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/dict.h"
48 static const AVOption options[] = {
49 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
50 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
51 { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
59 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
60 { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
61 { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
62 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
63 { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
64 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
65 { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69 #define MOV_CLASS(flavor)\
70 static const AVClass flavor ## _muxer_class = {\
71 .class_name = #flavor " muxer",\
72 .item_name = av_default_item_name,\
74 .version = LIBAVUTIL_VERSION_INT,\
77 //FIXME support 64 bit variant with wide placeholders
78 static int64_t update_size(AVIOContext *pb, int64_t pos)
80 int64_t curpos = avio_tell(pb);
81 avio_seek(pb, pos, SEEK_SET);
82 avio_wb32(pb, curpos - pos); /* rewrite size */
83 avio_seek(pb, curpos, SEEK_SET);
88 static int co64_required(const MOVTrack *track)
90 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
95 /* Chunk offset atom */
96 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
99 int mode64 = co64_required(track); // use 32 bit size variant if possible
100 int64_t pos = avio_tell(pb);
101 avio_wb32(pb, 0); /* size */
103 ffio_wfourcc(pb, "co64");
105 ffio_wfourcc(pb, "stco");
106 avio_wb32(pb, 0); /* version & flags */
107 avio_wb32(pb, track->entry); /* entry count */
108 for (i = 0; i < track->entry; i++) {
110 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
112 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
114 return update_size(pb, pos);
117 /* Sample size atom */
118 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
121 int i, j, entries = 0, tst = -1, oldtst = -1;
123 int64_t pos = avio_tell(pb);
124 avio_wb32(pb, 0); /* size */
125 ffio_wfourcc(pb, "stsz");
126 avio_wb32(pb, 0); /* version & flags */
128 for (i = 0; i < track->entry; i++) {
129 tst = track->cluster[i].size / track->cluster[i].entries;
130 if (oldtst != -1 && tst != oldtst)
133 entries += track->cluster[i].entries;
135 if (equalChunks && track->entry) {
136 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
137 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
138 avio_wb32(pb, sSize); // sample size
139 avio_wb32(pb, entries); // sample count
141 avio_wb32(pb, 0); // sample size
142 avio_wb32(pb, entries); // sample count
143 for (i = 0; i < track->entry; i++) {
144 for (j = 0; j < track->cluster[i].entries; j++) {
145 avio_wb32(pb, track->cluster[i].size /
146 track->cluster[i].entries);
150 return update_size(pb, pos);
153 /* Sample to chunk atom */
154 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
156 int index = 0, oldval = -1, i;
157 int64_t entryPos, curpos;
159 int64_t pos = avio_tell(pb);
160 avio_wb32(pb, 0); /* size */
161 ffio_wfourcc(pb, "stsc");
162 avio_wb32(pb, 0); // version & flags
163 entryPos = avio_tell(pb);
164 avio_wb32(pb, track->entry); // entry count
165 for (i = 0; i < track->entry; i++) {
166 if (oldval != track->cluster[i].samples_in_chunk) {
167 avio_wb32(pb, i + 1); // first chunk
168 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
169 avio_wb32(pb, 0x1); // sample description index
170 oldval = track->cluster[i].samples_in_chunk;
174 curpos = avio_tell(pb);
175 avio_seek(pb, entryPos, SEEK_SET);
176 avio_wb32(pb, index); // rewrite size
177 avio_seek(pb, curpos, SEEK_SET);
179 return update_size(pb, pos);
182 /* Sync sample atom */
183 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
185 int64_t curpos, entryPos;
187 int64_t pos = avio_tell(pb);
188 avio_wb32(pb, 0); // size
189 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
190 avio_wb32(pb, 0); // version & flags
191 entryPos = avio_tell(pb);
192 avio_wb32(pb, track->entry); // entry count
193 for (i = 0; i < track->entry; i++) {
194 if (track->cluster[i].flags & flag) {
195 avio_wb32(pb, i + 1);
199 curpos = avio_tell(pb);
200 avio_seek(pb, entryPos, SEEK_SET);
201 avio_wb32(pb, index); // rewrite size
202 avio_seek(pb, curpos, SEEK_SET);
203 return update_size(pb, pos);
206 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
208 avio_wb32(pb, 0x11); /* size */
209 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
210 else ffio_wfourcc(pb, "damr");
211 ffio_wfourcc(pb, "FFMP");
212 avio_w8(pb, 0); /* decoder version */
214 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
215 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
216 avio_w8(pb, 0x01); /* Frames per sample */
220 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
225 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
227 if (track->vos_len < 7)
231 ffio_wfourcc(pb, "dac3");
233 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
234 fscod = get_bits(&gbc, 2);
235 frmsizecod = get_bits(&gbc, 6);
236 bsid = get_bits(&gbc, 5);
237 bsmod = get_bits(&gbc, 3);
238 acmod = get_bits(&gbc, 3);
240 skip_bits(&gbc, 2); // dsurmod
242 if ((acmod & 1) && acmod != 1)
243 skip_bits(&gbc, 2); // cmixlev
245 skip_bits(&gbc, 2); // surmixlev
247 lfeon = get_bits1(&gbc);
249 init_put_bits(&pbc, buf, sizeof(buf));
250 put_bits(&pbc, 2, fscod);
251 put_bits(&pbc, 5, bsid);
252 put_bits(&pbc, 3, bsmod);
253 put_bits(&pbc, 3, acmod);
254 put_bits(&pbc, 1, lfeon);
255 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
256 put_bits(&pbc, 5, 0); // reserved
258 flush_put_bits(&pbc);
259 avio_write(pb, buf, sizeof(buf));
265 * This function writes extradata "as is".
266 * Extradata must be formatted like a valid atom (with size and tag).
268 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
270 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
271 return track->enc->extradata_size;
274 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
279 avio_w8(pb, (size >> (7 * i)) | 0x80);
280 avio_w8(pb, size & 0x7F);
283 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
285 int64_t pos = avio_tell(pb);
286 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
288 avio_wb32(pb, 0); // size
289 ffio_wfourcc(pb, "esds");
290 avio_wb32(pb, 0); // Version
293 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
294 avio_wb16(pb, track->track_id);
295 avio_w8(pb, 0x00); // flags (= no flags)
297 // DecoderConfig descriptor
298 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
300 // Object type indication
301 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
302 track->enc->codec_id == AV_CODEC_ID_MP3) &&
303 track->enc->sample_rate > 24000)
304 avio_w8(pb, 0x6B); // 11172-3
306 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
308 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
309 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
310 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
311 avio_w8(pb, 0x15); // flags (= Audiostream)
313 avio_w8(pb, 0x11); // flags (= Visualstream)
315 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
317 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
318 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
319 track->enc->rc_min_rate == 0)
320 avio_wb32(pb, 0); // vbr
322 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
324 if (track->vos_len) {
325 // DecoderSpecific info descriptor
326 put_descr(pb, 0x05, track->vos_len);
327 avio_write(pb, track->vos_data, track->vos_len);
331 put_descr(pb, 0x06, 1);
333 return update_size(pb, pos);
336 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
338 int64_t pos = avio_tell(pb);
340 avio_wl32(pb, track->tag); // store it byteswapped
341 track->enc->codec_tag = av_bswap16(track->tag >> 16);
342 ff_put_wav_header(pb, track->enc);
343 return update_size(pb, pos);
346 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
348 int64_t pos = avio_tell(pb);
350 ffio_wfourcc(pb, "wfex");
351 ff_put_wav_header(pb, track->enc);
352 return update_size(pb, pos);
355 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
357 uint32_t layout_tag, bitmap;
358 int64_t pos = avio_tell(pb);
360 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
361 track->enc->channel_layout,
364 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
365 "lack of channel information\n");
369 avio_wb32(pb, 0); // Size
370 ffio_wfourcc(pb, "chan"); // Type
371 avio_w8(pb, 0); // Version
372 avio_wb24(pb, 0); // Flags
373 avio_wb32(pb, layout_tag); // mChannelLayoutTag
374 avio_wb32(pb, bitmap); // mChannelBitmap
375 avio_wb32(pb, 0); // mNumberChannelDescriptions
377 return update_size(pb, pos);
380 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
382 int64_t pos = avio_tell(pb);
384 avio_wb32(pb, 0); /* size */
385 ffio_wfourcc(pb, "wave");
387 avio_wb32(pb, 12); /* size */
388 ffio_wfourcc(pb, "frma");
389 avio_wl32(pb, track->tag);
391 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
392 /* useless atom needed by mplayer, ipod, not needed by quicktime */
393 avio_wb32(pb, 12); /* size */
394 ffio_wfourcc(pb, "mp4a");
396 mov_write_esds_tag(pb, track);
397 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
398 mov_write_amr_tag(pb, track);
399 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
400 mov_write_ac3_tag(pb, track);
401 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
402 mov_write_extradata_tag(pb, track);
403 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
404 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
405 mov_write_ms_tag(pb, track);
408 avio_wb32(pb, 8); /* size */
409 avio_wb32(pb, 0); /* null tag */
411 return update_size(pb, pos);
414 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
417 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
418 int unescaped_size, seq_found = 0;
419 int level = 0, interlace = 0;
420 int packet_seq = track->vc1_info.packet_seq;
421 int packet_entry = track->vc1_info.packet_entry;
422 int slices = track->vc1_info.slices;
425 if (track->start_dts == AV_NOPTS_VALUE) {
426 /* No packets written yet, vc1_info isn't authoritative yet. */
427 /* Assume inline sequence and entry headers. This will be
428 * overwritten at the end if the file is seekable. */
429 packet_seq = packet_entry = 1;
432 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
434 return AVERROR(ENOMEM);
435 start = find_next_marker(track->vos_data, end);
436 for (next = start; next < end; start = next) {
439 next = find_next_marker(start + 4, end);
440 size = next - start - 4;
443 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
444 init_get_bits(&gb, unescaped, 8 * unescaped_size);
445 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
446 int profile = get_bits(&gb, 2);
447 if (profile != PROFILE_ADVANCED) {
449 return AVERROR(ENOSYS);
452 level = get_bits(&gb, 3);
453 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
455 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
456 skip_bits(&gb, 1); /* broadcast */
457 interlace = get_bits1(&gb);
458 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
463 return AVERROR(ENOSYS);
466 init_put_bits(&pbc, buf, 7);
467 /* VC1DecSpecStruc */
468 put_bits(&pbc, 4, 12); /* profile - advanced */
469 put_bits(&pbc, 3, level);
470 put_bits(&pbc, 1, 0); /* reserved */
471 /* VC1AdvDecSpecStruc */
472 put_bits(&pbc, 3, level);
473 put_bits(&pbc, 1, 0); /* cbr */
474 put_bits(&pbc, 6, 0); /* reserved */
475 put_bits(&pbc, 1, !interlace); /* no interlace */
476 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
477 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
478 put_bits(&pbc, 1, !slices); /* no slice code */
479 put_bits(&pbc, 1, 0); /* no bframe */
480 put_bits(&pbc, 1, 0); /* reserved */
481 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
482 flush_put_bits(&pbc);
489 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
491 uint8_t buf[7] = { 0 };
494 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
497 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
498 ffio_wfourcc(pb, "dvc1");
499 track->vc1_info.struct_offset = avio_tell(pb);
500 avio_write(pb, buf, sizeof(buf));
501 avio_write(pb, track->vos_data, track->vos_len);
506 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
508 avio_wb32(pb, track->vos_len + 8);
509 ffio_wfourcc(pb, "glbl");
510 avio_write(pb, track->vos_data, track->vos_len);
511 return 8 + track->vos_len;
515 * Compute flags for 'lpcm' tag.
516 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
518 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
521 case AV_CODEC_ID_PCM_F32BE:
522 case AV_CODEC_ID_PCM_F64BE:
524 case AV_CODEC_ID_PCM_F32LE:
525 case AV_CODEC_ID_PCM_F64LE:
527 case AV_CODEC_ID_PCM_U8:
529 case AV_CODEC_ID_PCM_S16BE:
530 case AV_CODEC_ID_PCM_S24BE:
531 case AV_CODEC_ID_PCM_S32BE:
533 case AV_CODEC_ID_PCM_S8:
534 case AV_CODEC_ID_PCM_S16LE:
535 case AV_CODEC_ID_PCM_S24LE:
536 case AV_CODEC_ID_PCM_S32LE:
543 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
547 if (cluster_idx >= track->entry)
550 if (cluster_idx + 1 == track->entry)
551 next_dts = track->track_duration + track->start_dts;
553 next_dts = track->cluster[cluster_idx + 1].dts;
555 return next_dts - track->cluster[cluster_idx].dts;
558 static int get_samples_per_packet(MOVTrack *track)
560 int i, first_duration;
562 /* use 1 for raw PCM */
563 if (!track->audio_vbr)
566 /* check to see if duration is constant for all clusters */
569 first_duration = get_cluster_duration(track, 0);
570 for (i = 1; i < track->entry; i++) {
571 if (get_cluster_duration(track, i) != first_duration)
574 return first_duration;
577 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
579 int64_t pos = avio_tell(pb);
581 uint32_t tag = track->tag;
583 if (track->mode == MODE_MOV) {
584 if (mov_get_lpcm_flags(track->enc->codec_id))
585 tag = AV_RL32("lpcm");
589 avio_wb32(pb, 0); /* size */
590 avio_wl32(pb, tag); // store it byteswapped
591 avio_wb32(pb, 0); /* Reserved */
592 avio_wb16(pb, 0); /* Reserved */
593 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
595 /* SoundDescription */
596 avio_wb16(pb, version); /* Version */
597 avio_wb16(pb, 0); /* Revision level */
598 avio_wb32(pb, 0); /* Reserved */
603 avio_wb16(pb, 0xfffe);
605 avio_wb32(pb, 0x00010000);
607 avio_wb64(pb, av_double2int(track->enc->sample_rate));
608 avio_wb32(pb, track->enc->channels);
609 avio_wb32(pb, 0x7F000000);
610 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
611 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
612 avio_wb32(pb, track->sample_size);
613 avio_wb32(pb, get_samples_per_packet(track));
615 /* reserved for mp4/3gp */
620 avio_wb16(pb, 0); /* packet size (= 0) */
621 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
622 track->enc->sample_rate : 0);
623 avio_wb16(pb, 0); /* Reserved */
626 if (track->mode == MODE_MOV &&
627 (track->enc->codec_id == AV_CODEC_ID_AAC ||
628 track->enc->codec_id == AV_CODEC_ID_AC3 ||
629 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
630 track->enc->codec_id == AV_CODEC_ID_ALAC ||
631 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
632 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
633 mov_write_wave_tag(pb, track);
634 else if (track->tag == MKTAG('m','p','4','a'))
635 mov_write_esds_tag(pb, track);
636 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
637 mov_write_amr_tag(pb, track);
638 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
639 mov_write_ac3_tag(pb, track);
640 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
641 mov_write_extradata_tag(pb, track);
642 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
643 mov_write_wfex_tag(pb, track);
644 else if (track->vos_len > 0)
645 mov_write_glbl_tag(pb, track);
647 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
648 mov_write_chan_tag(pb, track);
650 return update_size(pb, pos);
653 static int mov_write_d263_tag(AVIOContext *pb)
655 avio_wb32(pb, 0xf); /* size */
656 ffio_wfourcc(pb, "d263");
657 ffio_wfourcc(pb, "FFMP");
658 avio_w8(pb, 0); /* decoder version */
659 /* FIXME use AVCodecContext level/profile, when encoder will set values */
660 avio_w8(pb, 0xa); /* level */
661 avio_w8(pb, 0); /* profile */
665 /* TODO: No idea about these values */
666 static int mov_write_svq3_tag(AVIOContext *pb)
669 ffio_wfourcc(pb, "SMI ");
670 ffio_wfourcc(pb, "SEQH");
672 avio_wb32(pb, 0xe2c0211d);
673 avio_wb32(pb, 0xc0000000);
678 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
680 int64_t pos = avio_tell(pb);
683 ffio_wfourcc(pb, "avcC");
684 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
685 return update_size(pb, pos);
688 /* also used by all avid codecs (dv, imx, meridien) and their variants */
689 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
692 avio_wb32(pb, 24); /* size */
693 ffio_wfourcc(pb, "ACLR");
694 ffio_wfourcc(pb, "ACLR");
695 ffio_wfourcc(pb, "0001");
696 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
697 avio_wb32(pb, 0); /* unknown */
699 avio_wb32(pb, 24); /* size */
700 ffio_wfourcc(pb, "APRG");
701 ffio_wfourcc(pb, "APRG");
702 ffio_wfourcc(pb, "0001");
703 avio_wb32(pb, 1); /* unknown */
704 avio_wb32(pb, 0); /* unknown */
706 avio_wb32(pb, 120); /* size */
707 ffio_wfourcc(pb, "ARES");
708 ffio_wfourcc(pb, "ARES");
709 ffio_wfourcc(pb, "0001");
710 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
711 avio_wb32(pb, track->enc->width);
712 /* values below are based on samples created with quicktime and avid codecs */
713 if (track->vos_data[5] & 2) { // interlaced
714 avio_wb32(pb, track->enc->height / 2);
715 avio_wb32(pb, 2); /* unknown */
716 avio_wb32(pb, 0); /* unknown */
717 avio_wb32(pb, 4); /* unknown */
719 avio_wb32(pb, track->enc->height);
720 avio_wb32(pb, 1); /* unknown */
721 avio_wb32(pb, 0); /* unknown */
722 if (track->enc->height == 1080)
723 avio_wb32(pb, 5); /* unknown */
725 avio_wb32(pb, 6); /* unknown */
728 for (i = 0; i < 10; i++)
731 /* extra padding for stsd needed */
736 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
738 int tag = track->enc->codec_tag;
740 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
743 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
744 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
745 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
746 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
747 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
748 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
749 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
754 static const AVCodecTag codec_ipod_tags[] = {
755 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
756 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
757 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
758 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
759 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
760 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
761 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
762 { AV_CODEC_ID_NONE, 0 },
765 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
767 int tag = track->enc->codec_tag;
769 // keep original tag for subs, ipod supports both formats
770 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
771 (tag == MKTAG('t', 'x', '3', 'g') ||
772 tag == MKTAG('t', 'e', 'x', 't'))))
773 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
775 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
776 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
777 "Quicktime/Ipod might not play the file\n");
782 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
786 if (track->enc->width == 720) /* SD */
787 if (track->enc->height == 480) /* NTSC */
788 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
789 else tag = MKTAG('d','v','c',' ');
790 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
791 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
792 else tag = MKTAG('d','v','p','p');
793 else if (track->enc->height == 720) /* HD 720 line */
794 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
795 else tag = MKTAG('d','v','h','p');
796 else if (track->enc->height == 1080) /* HD 1080 line */
797 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
798 else tag = MKTAG('d','v','h','6');
800 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
807 static const struct {
808 enum AVPixelFormat pix_fmt;
811 } mov_pix_fmt_tags[] = {
812 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
813 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
814 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
815 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
816 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
817 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
818 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
819 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
820 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
821 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
822 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
823 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
824 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
825 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
828 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
830 int tag = track->enc->codec_tag;
833 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
834 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
835 tag = mov_pix_fmt_tags[i].tag;
836 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
844 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
846 int tag = track->enc->codec_tag;
848 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
849 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
850 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
851 track->enc->codec_id == AV_CODEC_ID_H263 ||
852 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
853 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
854 tag = mov_get_dv_codec_tag(s, track);
855 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
856 tag = mov_get_rawvideo_codec_tag(s, track);
857 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
858 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
859 if (!tag) { // if no mac fcc found, try with Microsoft tags
860 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
862 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
863 "the file may be unplayable!\n");
865 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
866 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
867 if (!tag) { // if no mac fcc found, try with Microsoft tags
868 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
870 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
871 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
872 "the file may be unplayable!\n");
875 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
876 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
882 static const AVCodecTag codec_3gp_tags[] = {
883 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
884 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
885 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
886 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
887 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
888 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
889 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
890 { AV_CODEC_ID_NONE, 0 },
893 static const AVCodecTag codec_f4v_tags[] = {
894 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
895 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
896 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
897 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
898 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
899 { AV_CODEC_ID_NONE, 0 },
902 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
906 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
907 tag = mp4_get_codec_tag(s, track);
908 else if (track->mode == MODE_ISM) {
909 tag = mp4_get_codec_tag(s, track);
910 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
911 tag = MKTAG('w', 'm', 'a', ' ');
912 } else if (track->mode == MODE_IPOD)
913 tag = ipod_get_codec_tag(s, track);
914 else if (track->mode & MODE_3GP)
915 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
916 else if (track->mode == MODE_F4V)
917 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
919 tag = mov_get_codec_tag(s, track);
925 * Needed to make file play in iPods running newest firmware
926 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
928 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
931 ffio_wfourcc(pb, "uuid");
932 avio_wb32(pb, 0x6b6840f2);
933 avio_wb32(pb, 0x5f244fc5);
934 avio_wb32(pb, 0xba39a51b);
935 avio_wb32(pb, 0xcf0323f3);
940 static const uint16_t fiel_data[] = {
941 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
944 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
946 unsigned mov_field_order = 0;
947 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
948 mov_field_order = fiel_data[track->enc->field_order];
952 ffio_wfourcc(pb, "fiel");
953 avio_wb16(pb, mov_field_order);
957 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
959 int64_t pos = avio_tell(pb);
960 avio_wb32(pb, 0); /* size */
961 avio_wl32(pb, track->tag); // store it byteswapped
962 avio_wb32(pb, 0); /* Reserved */
963 avio_wb16(pb, 0); /* Reserved */
964 avio_wb16(pb, 1); /* Data-reference index */
966 if (track->enc->extradata_size)
967 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
969 return update_size(pb, pos);
972 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
975 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
976 track->enc->sample_aspect_ratio.den, INT_MAX);
979 ffio_wfourcc(pb, "pasp");
980 avio_wb32(pb, sar.num);
981 avio_wb32(pb, sar.den);
985 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
987 int64_t pos = avio_tell(pb);
988 char compressor_name[32] = { 0 };
990 avio_wb32(pb, 0); /* size */
991 avio_wl32(pb, track->tag); // store it byteswapped
992 avio_wb32(pb, 0); /* Reserved */
993 avio_wb16(pb, 0); /* Reserved */
994 avio_wb16(pb, 1); /* Data-reference index */
996 avio_wb16(pb, 0); /* Codec stream version */
997 avio_wb16(pb, 0); /* Codec stream revision (=0) */
998 if (track->mode == MODE_MOV) {
999 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1000 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1001 avio_wb32(pb, 0); /* Temporal Quality */
1002 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1004 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1005 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1008 avio_wb32(pb, 0); /* Reserved */
1009 avio_wb32(pb, 0); /* Reserved */
1010 avio_wb32(pb, 0); /* Reserved */
1012 avio_wb16(pb, track->enc->width); /* Video width */
1013 avio_wb16(pb, track->height); /* Video height */
1014 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1015 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1016 avio_wb32(pb, 0); /* Data size (= 0) */
1017 avio_wb16(pb, 1); /* Frame count (= 1) */
1019 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1020 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1021 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1022 avio_w8(pb, strlen(compressor_name));
1023 avio_write(pb, compressor_name, 31);
1025 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1026 avio_wb16(pb, track->enc->bits_per_coded_sample);
1028 avio_wb16(pb, 0x18); /* Reserved */
1029 avio_wb16(pb, 0xffff); /* Reserved */
1030 if (track->tag == MKTAG('m','p','4','v'))
1031 mov_write_esds_tag(pb, track);
1032 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1033 mov_write_d263_tag(pb);
1034 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1035 mov_write_svq3_tag(pb);
1036 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1037 mov_write_avid_tag(pb, track);
1038 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1039 mov_write_avcc_tag(pb, track);
1040 if (track->mode == MODE_IPOD)
1041 mov_write_uuid_tag_ipod(pb);
1042 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1043 mov_write_fiel_tag(pb, track);
1044 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1045 mov_write_dvc1_tag(pb, track);
1046 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1047 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1048 /* Don't write any potential extradata here - the cropping
1049 * is signalled via the normal width/height fields. */
1050 } else if (track->vos_len > 0)
1051 mov_write_glbl_tag(pb, track);
1053 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1054 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1055 mov_write_pasp_tag(pb, track);
1058 return update_size(pb, pos);
1061 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1063 int64_t pos = avio_tell(pb);
1064 avio_wb32(pb, 0); /* size */
1065 ffio_wfourcc(pb, "rtp ");
1066 avio_wb32(pb, 0); /* Reserved */
1067 avio_wb16(pb, 0); /* Reserved */
1068 avio_wb16(pb, 1); /* Data-reference index */
1070 avio_wb16(pb, 1); /* Hint track version */
1071 avio_wb16(pb, 1); /* Highest compatible version */
1072 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1074 avio_wb32(pb, 12); /* size */
1075 ffio_wfourcc(pb, "tims");
1076 avio_wb32(pb, track->timescale);
1078 return update_size(pb, pos);
1081 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1083 int64_t pos = avio_tell(pb);
1085 avio_wb32(pb, 0); /* size */
1086 ffio_wfourcc(pb, "tmcd"); /* Data format */
1087 avio_wb32(pb, 0); /* Reserved */
1088 avio_wb32(pb, 1); /* Data reference index */
1089 if (track->enc->extradata_size)
1090 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1091 return update_size(pb, pos);
1094 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1096 int64_t pos = avio_tell(pb);
1097 avio_wb32(pb, 0); /* size */
1098 ffio_wfourcc(pb, "stsd");
1099 avio_wb32(pb, 0); /* version & flags */
1100 avio_wb32(pb, 1); /* entry count */
1101 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1102 mov_write_video_tag(pb, track);
1103 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1104 mov_write_audio_tag(pb, track);
1105 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1106 mov_write_subtitle_tag(pb, track);
1107 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1108 mov_write_rtp_tag(pb, track);
1109 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1110 mov_write_tmcd_tag(pb, track);
1111 return update_size(pb, pos);
1114 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1116 MOVStts *ctts_entries;
1117 uint32_t entries = 0;
1121 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1122 ctts_entries[0].count = 1;
1123 ctts_entries[0].duration = track->cluster[0].cts;
1124 for (i = 1; i < track->entry; i++) {
1125 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1126 ctts_entries[entries].count++; /* compress */
1129 ctts_entries[entries].duration = track->cluster[i].cts;
1130 ctts_entries[entries].count = 1;
1133 entries++; /* last one */
1134 atom_size = 16 + (entries * 8);
1135 avio_wb32(pb, atom_size); /* size */
1136 ffio_wfourcc(pb, "ctts");
1137 avio_wb32(pb, 0); /* version & flags */
1138 avio_wb32(pb, entries); /* entry count */
1139 for (i = 0; i < entries; i++) {
1140 avio_wb32(pb, ctts_entries[i].count);
1141 avio_wb32(pb, ctts_entries[i].duration);
1143 av_free(ctts_entries);
1147 /* Time to sample atom */
1148 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1150 MOVStts *stts_entries;
1151 uint32_t entries = -1;
1155 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1156 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1157 stts_entries[0].count = track->sample_count;
1158 stts_entries[0].duration = 1;
1161 stts_entries = track->entry ?
1162 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1164 for (i = 0; i < track->entry; i++) {
1165 int duration = get_cluster_duration(track, i);
1166 if (i && duration == stts_entries[entries].duration) {
1167 stts_entries[entries].count++; /* compress */
1170 stts_entries[entries].duration = duration;
1171 stts_entries[entries].count = 1;
1174 entries++; /* last one */
1176 atom_size = 16 + (entries * 8);
1177 avio_wb32(pb, atom_size); /* size */
1178 ffio_wfourcc(pb, "stts");
1179 avio_wb32(pb, 0); /* version & flags */
1180 avio_wb32(pb, entries); /* entry count */
1181 for (i = 0; i < entries; i++) {
1182 avio_wb32(pb, stts_entries[i].count);
1183 avio_wb32(pb, stts_entries[i].duration);
1185 av_free(stts_entries);
1189 static int mov_write_dref_tag(AVIOContext *pb)
1191 avio_wb32(pb, 28); /* size */
1192 ffio_wfourcc(pb, "dref");
1193 avio_wb32(pb, 0); /* version & flags */
1194 avio_wb32(pb, 1); /* entry count */
1196 avio_wb32(pb, 0xc); /* size */
1197 ffio_wfourcc(pb, "url ");
1198 avio_wb32(pb, 1); /* version & flags */
1203 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1205 int64_t pos = avio_tell(pb);
1206 avio_wb32(pb, 0); /* size */
1207 ffio_wfourcc(pb, "stbl");
1208 mov_write_stsd_tag(pb, track);
1209 mov_write_stts_tag(pb, track);
1210 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1211 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1212 track->has_keyframes && track->has_keyframes < track->entry)
1213 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1214 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1215 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1216 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1217 track->flags & MOV_TRACK_CTTS)
1218 mov_write_ctts_tag(pb, track);
1219 mov_write_stsc_tag(pb, track);
1220 mov_write_stsz_tag(pb, track);
1221 mov_write_stco_tag(pb, track);
1222 return update_size(pb, pos);
1225 static int mov_write_dinf_tag(AVIOContext *pb)
1227 int64_t pos = avio_tell(pb);
1228 avio_wb32(pb, 0); /* size */
1229 ffio_wfourcc(pb, "dinf");
1230 mov_write_dref_tag(pb);
1231 return update_size(pb, pos);
1234 static int mov_write_nmhd_tag(AVIOContext *pb)
1237 ffio_wfourcc(pb, "nmhd");
1242 static int mov_write_gmhd_tag(AVIOContext *pb)
1244 avio_wb32(pb, 0x20); /* size */
1245 ffio_wfourcc(pb, "gmhd");
1246 avio_wb32(pb, 0x18); /* gmin size */
1247 ffio_wfourcc(pb, "gmin");/* generic media info */
1248 avio_wb32(pb, 0); /* version & flags */
1249 avio_wb16(pb, 0x40); /* graphics mode = */
1250 avio_wb16(pb, 0x8000); /* opColor (r?) */
1251 avio_wb16(pb, 0x8000); /* opColor (g?) */
1252 avio_wb16(pb, 0x8000); /* opColor (b?) */
1253 avio_wb16(pb, 0); /* balance */
1254 avio_wb16(pb, 0); /* reserved */
1258 static int mov_write_smhd_tag(AVIOContext *pb)
1260 avio_wb32(pb, 16); /* size */
1261 ffio_wfourcc(pb, "smhd");
1262 avio_wb32(pb, 0); /* version & flags */
1263 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1264 avio_wb16(pb, 0); /* reserved */
1268 static int mov_write_vmhd_tag(AVIOContext *pb)
1270 avio_wb32(pb, 0x14); /* size (always 0x14) */
1271 ffio_wfourcc(pb, "vmhd");
1272 avio_wb32(pb, 0x01); /* version & flags */
1273 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1277 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1279 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1280 int64_t pos = avio_tell(pb);
1284 descr = "DataHandler";
1287 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1288 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1290 descr = "VideoHandler";
1291 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1293 descr = "SoundHandler";
1294 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1295 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1296 else hdlr_type = "text";
1297 descr = "SubtitleHandler";
1298 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1300 descr = "HintHandler";
1301 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1303 descr = "TimeCodeHandler";
1306 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1307 track->enc->codec_tag);
1309 av_log(track->enc, AV_LOG_WARNING,
1310 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1311 tag_buf, track->enc->codec_tag);
1315 avio_wb32(pb, 0); /* size */
1316 ffio_wfourcc(pb, "hdlr");
1317 avio_wb32(pb, 0); /* Version & flags */
1318 avio_write(pb, hdlr, 4); /* handler */
1319 ffio_wfourcc(pb, hdlr_type); /* handler type */
1320 avio_wb32(pb, 0); /* reserved */
1321 avio_wb32(pb, 0); /* reserved */
1322 avio_wb32(pb, 0); /* reserved */
1323 if (!track || track->mode == MODE_MOV)
1324 avio_w8(pb, strlen(descr)); /* pascal string */
1325 avio_write(pb, descr, strlen(descr)); /* handler description */
1326 if (track && track->mode != MODE_MOV)
1327 avio_w8(pb, 0); /* c string */
1328 return update_size(pb, pos);
1331 static int mov_write_hmhd_tag(AVIOContext *pb)
1333 /* This atom must be present, but leaving the values at zero
1334 * seems harmless. */
1335 avio_wb32(pb, 28); /* size */
1336 ffio_wfourcc(pb, "hmhd");
1337 avio_wb32(pb, 0); /* version, flags */
1338 avio_wb16(pb, 0); /* maxPDUsize */
1339 avio_wb16(pb, 0); /* avgPDUsize */
1340 avio_wb32(pb, 0); /* maxbitrate */
1341 avio_wb32(pb, 0); /* avgbitrate */
1342 avio_wb32(pb, 0); /* reserved */
1346 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1348 int64_t pos = avio_tell(pb);
1349 avio_wb32(pb, 0); /* size */
1350 ffio_wfourcc(pb, "minf");
1351 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1352 mov_write_vmhd_tag(pb);
1353 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1354 mov_write_smhd_tag(pb);
1355 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1356 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1357 else mov_write_nmhd_tag(pb);
1358 } else if (track->tag == MKTAG('r','t','p',' ')) {
1359 mov_write_hmhd_tag(pb);
1360 } else if (track->tag == MKTAG('t','m','c','d')) {
1361 mov_write_gmhd_tag(pb);
1363 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1364 mov_write_hdlr_tag(pb, NULL);
1365 mov_write_dinf_tag(pb);
1366 mov_write_stbl_tag(pb, track);
1367 return update_size(pb, pos);
1370 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1372 int version = track->track_duration < INT32_MAX ? 0 : 1;
1374 if (track->mode == MODE_ISM)
1377 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1378 ffio_wfourcc(pb, "mdhd");
1379 avio_w8(pb, version);
1380 avio_wb24(pb, 0); /* flags */
1382 avio_wb64(pb, track->time);
1383 avio_wb64(pb, track->time);
1385 avio_wb32(pb, track->time); /* creation time */
1386 avio_wb32(pb, track->time); /* modification time */
1388 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1390 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1392 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1393 avio_wb16(pb, track->language); /* language */
1394 avio_wb16(pb, 0); /* reserved (quality) */
1396 if (version != 0 && track->mode == MODE_MOV) {
1397 av_log(NULL, AV_LOG_ERROR,
1398 "FATAL error, file duration too long for timebase, this file will not be\n"
1399 "playable with quicktime. Choose a different timebase or a different\n"
1400 "container format\n");
1406 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1408 int64_t pos = avio_tell(pb);
1409 avio_wb32(pb, 0); /* size */
1410 ffio_wfourcc(pb, "mdia");
1411 mov_write_mdhd_tag(pb, track);
1412 mov_write_hdlr_tag(pb, track);
1413 mov_write_minf_tag(pb, track);
1414 return update_size(pb, pos);
1417 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1419 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1420 track->timescale, AV_ROUND_UP);
1421 int version = duration < INT32_MAX ? 0 : 1;
1423 if (track->mode == MODE_ISM)
1426 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1427 ffio_wfourcc(pb, "tkhd");
1428 avio_w8(pb, version);
1429 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1430 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1431 MOV_TKHD_FLAG_IN_MOVIE);
1433 avio_wb64(pb, track->time);
1434 avio_wb64(pb, track->time);
1436 avio_wb32(pb, track->time); /* creation time */
1437 avio_wb32(pb, track->time); /* modification time */
1439 avio_wb32(pb, track->track_id); /* track-id */
1440 avio_wb32(pb, 0); /* reserved */
1442 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1444 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1446 avio_wb32(pb, 0); /* reserved */
1447 avio_wb32(pb, 0); /* reserved */
1448 avio_wb16(pb, 0); /* layer */
1449 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1450 /* Volume, only for audio */
1451 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1452 avio_wb16(pb, 0x0100);
1455 avio_wb16(pb, 0); /* reserved */
1457 /* Matrix structure */
1458 avio_wb32(pb, 0x00010000); /* reserved */
1459 avio_wb32(pb, 0x0); /* reserved */
1460 avio_wb32(pb, 0x0); /* reserved */
1461 avio_wb32(pb, 0x0); /* reserved */
1462 avio_wb32(pb, 0x00010000); /* reserved */
1463 avio_wb32(pb, 0x0); /* reserved */
1464 avio_wb32(pb, 0x0); /* reserved */
1465 avio_wb32(pb, 0x0); /* reserved */
1466 avio_wb32(pb, 0x40000000); /* reserved */
1468 /* Track width and height, for visual only */
1469 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1470 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1471 if (track->mode == MODE_MOV) {
1472 avio_wb32(pb, track->enc->width << 16);
1473 avio_wb32(pb, track->height << 16);
1475 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1476 if (!sample_aspect_ratio || track->height != track->enc->height)
1477 sample_aspect_ratio = 1;
1478 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1479 avio_wb32(pb, track->height * 0x10000);
1488 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1490 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1491 track->enc->sample_aspect_ratio.den);
1493 int64_t pos = avio_tell(pb);
1495 avio_wb32(pb, 0); /* size */
1496 ffio_wfourcc(pb, "tapt");
1499 ffio_wfourcc(pb, "clef");
1501 avio_wb32(pb, width << 16);
1502 avio_wb32(pb, track->enc->height << 16);
1505 ffio_wfourcc(pb, "enof");
1507 avio_wb32(pb, track->enc->width << 16);
1508 avio_wb32(pb, track->enc->height << 16);
1510 return update_size(pb, pos);
1513 // This box seems important for the psp playback ... without it the movie seems to hang
1514 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1516 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1517 track->timescale, AV_ROUND_UP);
1518 int version = duration < INT32_MAX ? 0 : 1;
1519 int entry_size, entry_count, size;
1520 int64_t delay, start_ct = track->cluster[0].cts;
1521 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1522 track->timescale, AV_ROUND_DOWN);
1523 version |= delay < INT32_MAX ? 0 : 1;
1525 entry_size = (version == 1) ? 20 : 12;
1526 entry_count = 1 + (delay > 0);
1527 size = 24 + entry_count * entry_size;
1529 /* write the atom data */
1530 avio_wb32(pb, size);
1531 ffio_wfourcc(pb, "edts");
1532 avio_wb32(pb, size - 8);
1533 ffio_wfourcc(pb, "elst");
1534 avio_w8(pb, version);
1535 avio_wb24(pb, 0); /* flags */
1537 avio_wb32(pb, entry_count);
1538 if (delay > 0) { /* add an empty edit to delay presentation */
1540 avio_wb64(pb, delay);
1543 avio_wb32(pb, delay);
1546 avio_wb32(pb, 0x00010000);
1551 avio_wb64(pb, duration);
1552 avio_wb64(pb, start_ct);
1554 avio_wb32(pb, duration);
1555 avio_wb32(pb, start_ct);
1557 avio_wb32(pb, 0x00010000);
1561 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1563 avio_wb32(pb, 20); // size
1564 ffio_wfourcc(pb, "tref");
1565 avio_wb32(pb, 12); // size (subatom)
1566 avio_wl32(pb, track->tref_tag);
1567 avio_wb32(pb, track->tref_id);
1571 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1572 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1574 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1575 ffio_wfourcc(pb, "uuid");
1576 ffio_wfourcc(pb, "USMT");
1577 avio_wb32(pb, 0x21d24fce);
1578 avio_wb32(pb, 0xbb88695c);
1579 avio_wb32(pb, 0xfac9c740);
1580 avio_wb32(pb, 0x1c); // another size here!
1581 ffio_wfourcc(pb, "MTDT");
1582 avio_wb32(pb, 0x00010012);
1583 avio_wb32(pb, 0x0a);
1584 avio_wb32(pb, 0x55c40000);
1590 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1592 AVFormatContext *ctx = track->rtp_ctx;
1593 char buf[1000] = "";
1596 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1597 NULL, NULL, 0, 0, ctx);
1598 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1601 avio_wb32(pb, len + 24);
1602 ffio_wfourcc(pb, "udta");
1603 avio_wb32(pb, len + 16);
1604 ffio_wfourcc(pb, "hnti");
1605 avio_wb32(pb, len + 8);
1606 ffio_wfourcc(pb, "sdp ");
1607 avio_write(pb, buf, len);
1611 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1612 MOVTrack *track, AVStream *st)
1614 int64_t pos = avio_tell(pb);
1615 avio_wb32(pb, 0); /* size */
1616 ffio_wfourcc(pb, "trak");
1617 mov_write_tkhd_tag(pb, track, st);
1618 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1619 (track->entry && track->cluster[0].dts)) {
1620 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
1621 mov_write_edts_tag(pb, track); // PSP Movies require edts box
1623 if (track->tref_tag)
1624 mov_write_tref_tag(pb, track);
1625 mov_write_mdia_tag(pb, track);
1626 if (track->mode == MODE_PSP)
1627 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1628 if (track->tag == MKTAG('r','t','p',' '))
1629 mov_write_udta_sdp(pb, track);
1630 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1631 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1632 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1633 mov_write_tapt_tag(pb, track);
1635 return update_size(pb, pos);
1638 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1640 int i, has_audio = 0, has_video = 0;
1641 int64_t pos = avio_tell(pb);
1642 int audio_profile = mov->iods_audio_profile;
1643 int video_profile = mov->iods_video_profile;
1644 for (i = 0; i < mov->nb_streams; i++) {
1645 if (mov->tracks[i].entry > 0) {
1646 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1647 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1650 if (audio_profile < 0)
1651 audio_profile = 0xFF - has_audio;
1652 if (video_profile < 0)
1653 video_profile = 0xFF - has_video;
1654 avio_wb32(pb, 0x0); /* size */
1655 ffio_wfourcc(pb, "iods");
1656 avio_wb32(pb, 0); /* version & flags */
1657 put_descr(pb, 0x10, 7);
1658 avio_wb16(pb, 0x004f);
1661 avio_w8(pb, audio_profile);
1662 avio_w8(pb, video_profile);
1664 return update_size(pb, pos);
1667 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1669 avio_wb32(pb, 0x20); /* size */
1670 ffio_wfourcc(pb, "trex");
1671 avio_wb32(pb, 0); /* version & flags */
1672 avio_wb32(pb, track->track_id); /* track ID */
1673 avio_wb32(pb, 1); /* default sample description index */
1674 avio_wb32(pb, 0); /* default sample duration */
1675 avio_wb32(pb, 0); /* default sample size */
1676 avio_wb32(pb, 0); /* default sample flags */
1680 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1682 int64_t pos = avio_tell(pb);
1684 avio_wb32(pb, 0x0); /* size */
1685 ffio_wfourcc(pb, "mvex");
1686 for (i = 0; i < mov->nb_streams; i++)
1687 mov_write_trex_tag(pb, &mov->tracks[i]);
1688 return update_size(pb, pos);
1691 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1693 int max_track_id = 1, i;
1694 int64_t max_track_len_temp, max_track_len = 0;
1697 for (i = 0; i < mov->nb_streams; i++) {
1698 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1699 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1701 mov->tracks[i].timescale,
1703 if (max_track_len < max_track_len_temp)
1704 max_track_len = max_track_len_temp;
1705 if (max_track_id < mov->tracks[i].track_id)
1706 max_track_id = mov->tracks[i].track_id;
1710 version = max_track_len < UINT32_MAX ? 0 : 1;
1711 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1712 ffio_wfourcc(pb, "mvhd");
1713 avio_w8(pb, version);
1714 avio_wb24(pb, 0); /* flags */
1716 avio_wb64(pb, mov->time);
1717 avio_wb64(pb, mov->time);
1719 avio_wb32(pb, mov->time); /* creation time */
1720 avio_wb32(pb, mov->time); /* modification time */
1722 avio_wb32(pb, MOV_TIMESCALE);
1723 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1725 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1726 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1727 avio_wb16(pb, 0); /* reserved */
1728 avio_wb32(pb, 0); /* reserved */
1729 avio_wb32(pb, 0); /* reserved */
1731 /* Matrix structure */
1732 avio_wb32(pb, 0x00010000); /* reserved */
1733 avio_wb32(pb, 0x0); /* reserved */
1734 avio_wb32(pb, 0x0); /* reserved */
1735 avio_wb32(pb, 0x0); /* reserved */
1736 avio_wb32(pb, 0x00010000); /* reserved */
1737 avio_wb32(pb, 0x0); /* reserved */
1738 avio_wb32(pb, 0x0); /* reserved */
1739 avio_wb32(pb, 0x0); /* reserved */
1740 avio_wb32(pb, 0x40000000); /* reserved */
1742 avio_wb32(pb, 0); /* reserved (preview time) */
1743 avio_wb32(pb, 0); /* reserved (preview duration) */
1744 avio_wb32(pb, 0); /* reserved (poster time) */
1745 avio_wb32(pb, 0); /* reserved (selection time) */
1746 avio_wb32(pb, 0); /* reserved (selection duration) */
1747 avio_wb32(pb, 0); /* reserved (current time) */
1748 avio_wb32(pb, max_track_id + 1); /* Next track id */
1752 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1755 avio_wb32(pb, 33); /* size */
1756 ffio_wfourcc(pb, "hdlr");
1759 ffio_wfourcc(pb, "mdir");
1760 ffio_wfourcc(pb, "appl");
1767 /* helper function to write a data tag with the specified string as data */
1768 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1771 int size = 16 + strlen(data);
1772 avio_wb32(pb, size); /* size */
1773 ffio_wfourcc(pb, "data");
1776 avio_write(pb, data, strlen(data));
1780 lang = ff_mov_iso639_to_lang("und", 1);
1781 avio_wb16(pb, strlen(data)); /* string length */
1782 avio_wb16(pb, lang);
1783 avio_write(pb, data, strlen(data));
1784 return strlen(data) + 4;
1788 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1789 const char *value, int lang, int long_style)
1792 if (value && value[0]) {
1793 int64_t pos = avio_tell(pb);
1794 avio_wb32(pb, 0); /* size */
1795 ffio_wfourcc(pb, name);
1796 mov_write_string_data_tag(pb, value, lang, long_style);
1797 size = update_size(pb, pos);
1802 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1803 const char *name, const char *tag,
1806 int l, lang = 0, len, len2;
1807 AVDictionaryEntry *t, *t2 = NULL;
1810 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1813 len = strlen(t->key);
1814 snprintf(tag2, sizeof(tag2), "%s-", tag);
1815 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1816 len2 = strlen(t2->key);
1817 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1818 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1823 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1826 /* iTunes track number */
1827 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1830 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1831 int size = 0, track = t ? atoi(t->value) : 0;
1833 avio_wb32(pb, 32); /* size */
1834 ffio_wfourcc(pb, "trkn");
1835 avio_wb32(pb, 24); /* size */
1836 ffio_wfourcc(pb, "data");
1837 avio_wb32(pb, 0); // 8 bytes empty
1839 avio_wb16(pb, 0); // empty
1840 avio_wb16(pb, track); // track number
1841 avio_wb16(pb, 0); // total track number
1842 avio_wb16(pb, 0); // empty
1848 /* iTunes meta data list */
1849 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1852 int64_t pos = avio_tell(pb);
1853 avio_wb32(pb, 0); /* size */
1854 ffio_wfourcc(pb, "ilst");
1855 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1856 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1857 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1858 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1859 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1860 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1861 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1862 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1863 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1864 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1865 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1866 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1867 mov_write_string_metadata(s, pb, "desc", "description",1);
1868 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1869 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1870 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1871 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1872 mov_write_trkn_tag(pb, mov, s);
1873 return update_size(pb, pos);
1876 /* iTunes meta data tag */
1877 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1881 int64_t pos = avio_tell(pb);
1882 avio_wb32(pb, 0); /* size */
1883 ffio_wfourcc(pb, "meta");
1885 mov_write_itunes_hdlr_tag(pb, mov, s);
1886 mov_write_ilst_tag(pb, mov, s);
1887 size = update_size(pb, pos);
1891 static int utf8len(const uint8_t *b)
1896 GET_UTF8(val, *b++, return -1;)
1902 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1906 GET_UTF8(val, *b++, return -1;)
1909 avio_wb16(pb, 0x00);
1913 static uint16_t language_code(const char *str)
1915 return (((str[0] - 0x60) & 0x1F) << 10) +
1916 (((str[1] - 0x60) & 0x1F) << 5) +
1917 (( str[2] - 0x60) & 0x1F);
1920 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1921 const char *tag, const char *str)
1923 int64_t pos = avio_tell(pb);
1924 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1925 if (!t || !utf8len(t->value))
1927 avio_wb32(pb, 0); /* size */
1928 ffio_wfourcc(pb, tag); /* type */
1929 avio_wb32(pb, 0); /* version + flags */
1930 if (!strcmp(tag, "yrrc"))
1931 avio_wb16(pb, atoi(t->value));
1933 avio_wb16(pb, language_code("eng")); /* language */
1934 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
1935 if (!strcmp(tag, "albm") &&
1936 (t = av_dict_get(s->metadata, "track", NULL, 0)))
1937 avio_w8(pb, atoi(t->value));
1939 return update_size(pb, pos);
1942 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1944 int64_t pos = avio_tell(pb);
1945 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1947 avio_wb32(pb, 0); // size
1948 ffio_wfourcc(pb, "chpl");
1949 avio_wb32(pb, 0x01000000); // version + flags
1950 avio_wb32(pb, 0); // unknown
1951 avio_w8(pb, nb_chapters);
1953 for (i = 0; i < nb_chapters; i++) {
1954 AVChapter *c = s->chapters[i];
1955 AVDictionaryEntry *t;
1956 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1958 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1959 int len = FFMIN(strlen(t->value), 255);
1961 avio_write(pb, t->value, len);
1965 return update_size(pb, pos);
1968 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1971 AVIOContext *pb_buf;
1975 for (i = 0; i < s->nb_streams; i++)
1976 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1980 ret = avio_open_dyn_buf(&pb_buf);
1984 if (mov->mode & MODE_3GP) {
1985 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1986 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1987 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1988 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1989 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1990 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1991 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1992 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1993 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1994 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
1995 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
1996 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
1997 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
1998 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
1999 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2000 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2001 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2002 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2004 /* iTunes meta data */
2005 mov_write_meta_tag(pb_buf, mov, s);
2009 mov_write_chpl_tag(pb_buf, s);
2011 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2012 avio_wb32(pb, size + 8);
2013 ffio_wfourcc(pb, "udta");
2014 avio_write(pb, buf, size);
2021 static void mov_write_psp_udta_tag(AVIOContext *pb,
2022 const char *str, const char *lang, int type)
2024 int len = utf8len(str) + 1;
2027 avio_wb16(pb, len * 2 + 10); /* size */
2028 avio_wb32(pb, type); /* type */
2029 avio_wb16(pb, language_code(lang)); /* language */
2030 avio_wb16(pb, 0x01); /* ? */
2031 ascii_to_wc(pb, str);
2034 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2036 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2040 pos = avio_tell(pb);
2041 avio_wb32(pb, 0); /* size placeholder*/
2042 ffio_wfourcc(pb, "uuid");
2043 ffio_wfourcc(pb, "USMT");
2044 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2045 avio_wb32(pb, 0xbb88695c);
2046 avio_wb32(pb, 0xfac9c740);
2048 pos2 = avio_tell(pb);
2049 avio_wb32(pb, 0); /* size placeholder*/
2050 ffio_wfourcc(pb, "MTDT");
2054 avio_wb16(pb, 0x0C); /* size */
2055 avio_wb32(pb, 0x0B); /* type */
2056 avio_wb16(pb, language_code("und")); /* language */
2057 avio_wb16(pb, 0x0); /* ? */
2058 avio_wb16(pb, 0x021C); /* data */
2060 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2061 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2062 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2064 update_size(pb, pos2);
2065 return update_size(pb, pos);
2071 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2075 int64_t pos = avio_tell(pb);
2076 avio_wb32(pb, 0); /* size placeholder*/
2077 ffio_wfourcc(pb, "moov");
2079 for (i = 0; i < mov->nb_streams; i++) {
2080 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2083 mov->tracks[i].time = mov->time;
2084 mov->tracks[i].track_id = i + 1;
2087 if (mov->chapter_track)
2088 for (i = 0; i < s->nb_streams; i++) {
2089 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2090 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2092 for (i = 0; i < mov->nb_streams; i++) {
2093 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2094 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2095 mov->tracks[i].tref_id =
2096 mov->tracks[mov->tracks[i].src_track].track_id;
2100 mov_write_mvhd_tag(pb, mov);
2101 if (mov->mode != MODE_MOV && !mov->iods_skip)
2102 mov_write_iods_tag(pb, mov);
2103 for (i = 0; i < mov->nb_streams; i++) {
2104 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2105 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2108 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2109 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2111 if (mov->mode == MODE_PSP)
2112 mov_write_uuidusmt_tag(pb, s);
2114 mov_write_udta_tag(pb, mov, s);
2116 return update_size(pb, pos);
2119 static void param_write_int(AVIOContext *pb, const char *name, int value)
2121 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2124 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2126 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2129 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2132 len = FFMIN(sizeof(buf) / 2 - 1, len);
2133 ff_data_to_hex(buf, value, len, 0);
2134 buf[2 * len] = '\0';
2135 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2138 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2140 int64_t pos = avio_tell(pb);
2142 const uint8_t uuid[] = {
2143 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2144 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2148 ffio_wfourcc(pb, "uuid");
2149 avio_write(pb, uuid, sizeof(uuid));
2152 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2153 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2154 avio_printf(pb, "<head>\n");
2155 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2157 avio_printf(pb, "</head>\n");
2158 avio_printf(pb, "<body>\n");
2159 avio_printf(pb, "<switch>\n");
2160 for (i = 0; i < mov->nb_streams; i++) {
2161 MOVTrack *track = &mov->tracks[i];
2163 /* track->track_id is initialized in write_moov, and thus isn't known
2165 int track_id = i + 1;
2167 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2169 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2174 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2175 track->enc->bit_rate);
2176 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2177 param_write_int(pb, "trackID", track_id);
2178 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2179 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2181 int size = track->enc->extradata_size;
2182 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2184 param_write_hex(pb, "CodecPrivateData",
2185 ptr ? ptr : track->enc->extradata,
2189 param_write_string(pb, "FourCC", "H264");
2190 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2191 param_write_string(pb, "FourCC", "WVC1");
2192 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2193 track->enc->extradata_size);
2195 param_write_int(pb, "MaxWidth", track->enc->width);
2196 param_write_int(pb, "MaxHeight", track->enc->height);
2197 param_write_int(pb, "DisplayWidth", track->enc->width);
2198 param_write_int(pb, "DisplayHeight", track->enc->height);
2200 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2201 param_write_string(pb, "FourCC", "AACL");
2202 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2203 param_write_string(pb, "FourCC", "WMAP");
2205 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2206 track->enc->extradata_size);
2207 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2208 track->enc->codec_id));
2209 param_write_int(pb, "Channels", track->enc->channels);
2210 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2211 param_write_int(pb, "BitsPerSample", 16);
2212 param_write_int(pb, "PacketSize", track->enc->block_align ?
2213 track->enc->block_align : 4);
2215 avio_printf(pb, "</%s>\n", type);
2217 avio_printf(pb, "</switch>\n");
2218 avio_printf(pb, "</body>\n");
2219 avio_printf(pb, "</smil>\n");
2221 return update_size(pb, pos);
2224 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2227 ffio_wfourcc(pb, "mfhd");
2229 avio_wb32(pb, mov->fragments);
2233 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2234 MOVTrack *track, int64_t moof_offset)
2236 int64_t pos = avio_tell(pb);
2237 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2238 MOV_TFHD_BASE_DATA_OFFSET;
2239 if (!track->entry) {
2240 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2242 flags |= MOV_TFHD_DEFAULT_FLAGS;
2244 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2245 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2247 /* Don't set a default sample size, the silverlight player refuses
2248 * to play files with that set. Don't set a default sample duration,
2249 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2250 * file format says it MUST NOT be set. */
2251 if (track->mode == MODE_ISM)
2252 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2253 MOV_TFHD_BASE_DATA_OFFSET);
2255 avio_wb32(pb, 0); /* size placeholder */
2256 ffio_wfourcc(pb, "tfhd");
2257 avio_w8(pb, 0); /* version */
2258 avio_wb24(pb, flags);
2260 avio_wb32(pb, track->track_id); /* track-id */
2261 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2262 avio_wb64(pb, moof_offset);
2263 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2264 track->default_duration = get_cluster_duration(track, 0);
2265 avio_wb32(pb, track->default_duration);
2267 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2268 track->default_size = track->entry ? track->cluster[0].size : 1;
2269 avio_wb32(pb, track->default_size);
2271 track->default_size = -1;
2273 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2274 track->default_sample_flags =
2275 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2276 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2277 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2278 avio_wb32(pb, track->default_sample_flags);
2281 return update_size(pb, pos);
2284 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2286 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2287 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2290 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2291 MOVTrack *track, int moof_size)
2293 int64_t pos = avio_tell(pb);
2294 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2297 for (i = 0; i < track->entry; i++) {
2298 if (get_cluster_duration(track, i) != track->default_duration)
2299 flags |= MOV_TRUN_SAMPLE_DURATION;
2300 if (track->cluster[i].size != track->default_size)
2301 flags |= MOV_TRUN_SAMPLE_SIZE;
2302 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2303 flags |= MOV_TRUN_SAMPLE_FLAGS;
2305 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2306 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2307 if (track->flags & MOV_TRACK_CTTS)
2308 flags |= MOV_TRUN_SAMPLE_CTS;
2310 avio_wb32(pb, 0); /* size placeholder */
2311 ffio_wfourcc(pb, "trun");
2312 avio_w8(pb, 0); /* version */
2313 avio_wb24(pb, flags);
2315 avio_wb32(pb, track->entry); /* sample count */
2316 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2317 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2318 track->track_id != 1)
2319 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2321 avio_wb32(pb, moof_size + 8 + track->data_offset +
2322 track->cluster[0].pos); /* data offset */
2323 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2324 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2326 for (i = 0; i < track->entry; i++) {
2327 if (flags & MOV_TRUN_SAMPLE_DURATION)
2328 avio_wb32(pb, get_cluster_duration(track, i));
2329 if (flags & MOV_TRUN_SAMPLE_SIZE)
2330 avio_wb32(pb, track->cluster[i].size);
2331 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2332 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2333 if (flags & MOV_TRUN_SAMPLE_CTS)
2334 avio_wb32(pb, track->cluster[i].cts);
2337 return update_size(pb, pos);
2340 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2342 int64_t pos = avio_tell(pb);
2343 const uint8_t uuid[] = {
2344 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2345 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2348 avio_wb32(pb, 0); /* size placeholder */
2349 ffio_wfourcc(pb, "uuid");
2350 avio_write(pb, uuid, sizeof(uuid));
2353 avio_wb64(pb, track->frag_start);
2354 avio_wb64(pb, track->start_dts + track->track_duration -
2355 track->cluster[0].dts);
2357 return update_size(pb, pos);
2360 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2361 MOVTrack *track, int entry)
2363 int n = track->nb_frag_info - 1 - entry, i;
2364 int size = 8 + 16 + 4 + 1 + 16*n;
2365 const uint8_t uuid[] = {
2366 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2367 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2373 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2374 avio_wb32(pb, size);
2375 ffio_wfourcc(pb, "uuid");
2376 avio_write(pb, uuid, sizeof(uuid));
2380 for (i = 0; i < n; i++) {
2381 int index = entry + 1 + i;
2382 avio_wb64(pb, track->frag_info[index].time);
2383 avio_wb64(pb, track->frag_info[index].duration);
2385 if (n < mov->ism_lookahead) {
2386 int free_size = 16 * (mov->ism_lookahead - n);
2387 avio_wb32(pb, free_size);
2388 ffio_wfourcc(pb, "free");
2389 for (i = 0; i < free_size - 8; i++)
2396 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2399 int64_t pos = avio_tell(pb);
2401 for (i = 0; i < mov->ism_lookahead; i++) {
2402 /* Update the tfrf tag for the last ism_lookahead fragments,
2403 * nb_frag_info - 1 is the next fragment to be written. */
2404 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2406 avio_seek(pb, pos, SEEK_SET);
2410 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2411 MOVTrack *track, int64_t moof_offset,
2414 int64_t pos = avio_tell(pb);
2415 avio_wb32(pb, 0); /* size placeholder */
2416 ffio_wfourcc(pb, "traf");
2418 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2419 mov_write_trun_tag(pb, mov, track, moof_size);
2420 if (mov->mode == MODE_ISM) {
2421 mov_write_tfxd_tag(pb, track);
2423 if (mov->ism_lookahead) {
2424 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2426 track->tfrf_offset = avio_tell(pb);
2427 avio_wb32(pb, 8 + size);
2428 ffio_wfourcc(pb, "free");
2429 for (i = 0; i < size; i++)
2434 return update_size(pb, pos);
2437 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2438 int tracks, int moof_size)
2440 int64_t pos = avio_tell(pb);
2443 avio_wb32(pb, 0); /* size placeholder */
2444 ffio_wfourcc(pb, "moof");
2446 mov_write_mfhd_tag(pb, mov);
2447 for (i = 0; i < mov->nb_streams; i++) {
2448 MOVTrack *track = &mov->tracks[i];
2449 if (tracks >= 0 && i != tracks)
2453 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2456 return update_size(pb, pos);
2459 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2461 AVIOContext *avio_buf;
2464 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2466 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2467 moof_size = ffio_close_null_buf(avio_buf);
2468 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2471 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2473 int64_t pos = avio_tell(pb);
2476 avio_wb32(pb, 0); /* size placeholder */
2477 ffio_wfourcc(pb, "tfra");
2478 avio_w8(pb, 1); /* version */
2481 avio_wb32(pb, track->track_id);
2482 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2483 avio_wb32(pb, track->nb_frag_info);
2484 for (i = 0; i < track->nb_frag_info; i++) {
2485 avio_wb64(pb, track->frag_info[i].time);
2486 avio_wb64(pb, track->frag_info[i].offset);
2487 avio_w8(pb, 1); /* traf number */
2488 avio_w8(pb, 1); /* trun number */
2489 avio_w8(pb, 1); /* sample number */
2492 return update_size(pb, pos);
2495 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2497 int64_t pos = avio_tell(pb);
2500 avio_wb32(pb, 0); /* size placeholder */
2501 ffio_wfourcc(pb, "mfra");
2502 /* An empty mfra atom is enough to indicate to the publishing point that
2503 * the stream has ended. */
2504 if (mov->flags & FF_MOV_FLAG_ISML)
2505 return update_size(pb, pos);
2507 for (i = 0; i < mov->nb_streams; i++) {
2508 MOVTrack *track = &mov->tracks[i];
2509 if (track->nb_frag_info)
2510 mov_write_tfra_tag(pb, track);
2514 ffio_wfourcc(pb, "mfro");
2515 avio_wb32(pb, 0); /* version + flags */
2516 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2518 return update_size(pb, pos);
2521 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2523 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2524 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2526 mov->mdat_pos = avio_tell(pb);
2527 avio_wb32(pb, 0); /* size placeholder*/
2528 ffio_wfourcc(pb, "mdat");
2532 /* TODO: This needs to be more general */
2533 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2535 MOVMuxContext *mov = s->priv_data;
2536 int64_t pos = avio_tell(pb);
2537 int has_h264 = 0, has_video = 0;
2541 for (i = 0; i < s->nb_streams; i++) {
2542 AVStream *st = s->streams[i];
2543 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2545 if (st->codec->codec_id == AV_CODEC_ID_H264)
2549 avio_wb32(pb, 0); /* size */
2550 ffio_wfourcc(pb, "ftyp");
2552 if (mov->mode == MODE_3GP) {
2553 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2554 minor = has_h264 ? 0x100 : 0x200;
2555 } else if (mov->mode & MODE_3G2) {
2556 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2557 minor = has_h264 ? 0x20000 : 0x10000;
2558 } else if (mov->mode == MODE_PSP)
2559 ffio_wfourcc(pb, "MSNV");
2560 else if (mov->mode == MODE_MP4)
2561 ffio_wfourcc(pb, "isom");
2562 else if (mov->mode == MODE_IPOD)
2563 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2564 else if (mov->mode == MODE_ISM)
2565 ffio_wfourcc(pb, "isml");
2566 else if (mov->mode == MODE_F4V)
2567 ffio_wfourcc(pb, "f4v ");
2569 ffio_wfourcc(pb, "qt ");
2571 avio_wb32(pb, minor);
2573 if (mov->mode == MODE_MOV)
2574 ffio_wfourcc(pb, "qt ");
2575 else if (mov->mode == MODE_ISM) {
2576 ffio_wfourcc(pb, "piff");
2577 ffio_wfourcc(pb, "iso2");
2579 ffio_wfourcc(pb, "isom");
2580 ffio_wfourcc(pb, "iso2");
2582 ffio_wfourcc(pb, "avc1");
2585 if (mov->mode == MODE_3GP)
2586 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2587 else if (mov->mode & MODE_3G2)
2588 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2589 else if (mov->mode == MODE_PSP)
2590 ffio_wfourcc(pb, "MSNV");
2591 else if (mov->mode == MODE_MP4)
2592 ffio_wfourcc(pb, "mp41");
2593 return update_size(pb, pos);
2596 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2598 AVCodecContext *video_codec = s->streams[0]->codec;
2599 AVCodecContext *audio_codec = s->streams[1]->codec;
2600 int audio_rate = audio_codec->sample_rate;
2601 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
2602 int audio_kbitrate = audio_codec->bit_rate / 1000;
2603 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2605 avio_wb32(pb, 0x94); /* size */
2606 ffio_wfourcc(pb, "uuid");
2607 ffio_wfourcc(pb, "PROF");
2609 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2610 avio_wb32(pb, 0xbb88695c);
2611 avio_wb32(pb, 0xfac9c740);
2613 avio_wb32(pb, 0x0); /* ? */
2614 avio_wb32(pb, 0x3); /* 3 sections ? */
2616 avio_wb32(pb, 0x14); /* size */
2617 ffio_wfourcc(pb, "FPRF");
2618 avio_wb32(pb, 0x0); /* ? */
2619 avio_wb32(pb, 0x0); /* ? */
2620 avio_wb32(pb, 0x0); /* ? */
2622 avio_wb32(pb, 0x2c); /* size */
2623 ffio_wfourcc(pb, "APRF"); /* audio */
2625 avio_wb32(pb, 0x2); /* TrackID */
2626 ffio_wfourcc(pb, "mp4a");
2627 avio_wb32(pb, 0x20f);
2629 avio_wb32(pb, audio_kbitrate);
2630 avio_wb32(pb, audio_kbitrate);
2631 avio_wb32(pb, audio_rate);
2632 avio_wb32(pb, audio_codec->channels);
2634 avio_wb32(pb, 0x34); /* size */
2635 ffio_wfourcc(pb, "VPRF"); /* video */
2637 avio_wb32(pb, 0x1); /* TrackID */
2638 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2639 ffio_wfourcc(pb, "avc1");
2640 avio_wb16(pb, 0x014D);
2641 avio_wb16(pb, 0x0015);
2643 ffio_wfourcc(pb, "mp4v");
2644 avio_wb16(pb, 0x0000);
2645 avio_wb16(pb, 0x0103);
2648 avio_wb32(pb, video_kbitrate);
2649 avio_wb32(pb, video_kbitrate);
2650 avio_wb32(pb, frame_rate);
2651 avio_wb32(pb, frame_rate);
2652 avio_wb16(pb, video_codec->width);
2653 avio_wb16(pb, video_codec->height);
2654 avio_wb32(pb, 0x010001); /* ? */
2657 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2660 int i, closed_gop = 0;
2662 for (i = 0; i < pkt->size - 4; i++) {
2663 c = (c << 8) + pkt->data[i];
2664 if (c == 0x1b8) { // gop
2665 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2666 } else if (c == 0x100) { // pic
2667 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2668 if (!temp_ref || closed_gop) // I picture is not reordered
2669 *flags = MOV_SYNC_SAMPLE;
2671 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2678 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2680 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2681 int seq = 0, entry = 0;
2682 int key = pkt->flags & AV_PKT_FLAG_KEY;
2683 start = find_next_marker(pkt->data, end);
2684 for (next = start; next < end; start = next) {
2685 next = find_next_marker(start + 4, end);
2686 switch (AV_RB32(start)) {
2687 case VC1_CODE_SEQHDR:
2690 case VC1_CODE_ENTRYPOINT:
2693 case VC1_CODE_SLICE:
2694 trk->vc1_info.slices = 1;
2698 if (!trk->entry && !fragment) {
2699 /* First packet in first fragment */
2700 trk->vc1_info.first_packet_seq = seq;
2701 trk->vc1_info.first_packet_entry = entry;
2702 } else if ((seq && !trk->vc1_info.packet_seq) ||
2703 (entry && !trk->vc1_info.packet_entry)) {
2705 for (i = 0; i < trk->entry; i++)
2706 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2707 trk->has_keyframes = 0;
2709 trk->vc1_info.packet_seq = 1;
2711 trk->vc1_info.packet_entry = 1;
2713 /* First fragment */
2714 if ((!seq || trk->vc1_info.first_packet_seq) &&
2715 (!entry || trk->vc1_info.first_packet_entry)) {
2716 /* First packet had the same headers as this one, readd the
2717 * sync sample flag. */
2718 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2719 trk->has_keyframes = 1;
2723 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2725 else if (trk->vc1_info.packet_seq)
2727 else if (trk->vc1_info.packet_entry)
2730 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2731 trk->has_keyframes++;
2735 static int mov_flush_fragment(AVFormatContext *s)
2737 MOVMuxContext *mov = s->priv_data;
2738 int i, first_track = -1;
2739 int64_t mdat_size = 0;
2741 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2744 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2745 int64_t pos = avio_tell(s->pb);
2747 AVIOContext *moov_buf;
2751 for (i = 0; i < mov->nb_streams; i++)
2752 if (!mov->tracks[i].entry)
2754 /* Don't write the initial moov unless all tracks have data */
2755 if (i < mov->nb_streams)
2758 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
2760 mov_write_moov_tag(moov_buf, mov, s);
2761 buf_size = ffio_close_null_buf(moov_buf);
2762 for (i = 0; i < mov->nb_streams; i++)
2763 mov->tracks[i].data_offset = pos + buf_size + 8;
2765 mov_write_moov_tag(s->pb, mov, s);
2767 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2768 mov->mdat_buf = NULL;
2769 avio_wb32(s->pb, buf_size + 8);
2770 ffio_wfourcc(s->pb, "mdat");
2771 avio_write(s->pb, buf, buf_size);
2776 for (i = 0; i < mov->nb_streams; i++) {
2777 if (mov->tracks[i].entry)
2778 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2779 mov->tracks[i].track_duration -
2780 mov->tracks[i].cluster[0].dts;
2781 mov->tracks[i].entry = 0;
2787 for (i = 0; i < mov->nb_streams; i++) {
2788 MOVTrack *track = &mov->tracks[i];
2789 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2790 track->data_offset = 0;
2792 track->data_offset = mdat_size;
2793 if (!track->mdat_buf)
2795 mdat_size += avio_tell(track->mdat_buf);
2796 if (first_track < 0)
2803 for (i = 0; i < mov->nb_streams; i++) {
2804 MOVTrack *track = &mov->tracks[i];
2805 int buf_size, write_moof = 1, moof_tracks = -1;
2807 int64_t duration = 0;
2810 duration = track->start_dts + track->track_duration -
2811 track->cluster[0].dts;
2812 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2813 if (!track->mdat_buf)
2815 mdat_size = avio_tell(track->mdat_buf);
2818 write_moof = i == first_track;
2822 MOVFragmentInfo *info;
2824 track->nb_frag_info++;
2825 if (track->nb_frag_info >= track->frag_info_capacity) {
2826 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2827 if (av_reallocp_array(&track->frag_info,
2829 sizeof(*track->frag_info)))
2830 return AVERROR(ENOMEM);
2831 track->frag_info_capacity = new_capacity;
2833 info = &track->frag_info[track->nb_frag_info - 1];
2834 info->offset = avio_tell(s->pb);
2835 info->time = mov->tracks[i].frag_start;
2836 info->duration = duration;
2837 mov_write_tfrf_tags(s->pb, mov, track);
2839 mov_write_moof_tag(s->pb, mov, moof_tracks);
2840 info->tfrf_offset = track->tfrf_offset;
2843 avio_wb32(s->pb, mdat_size + 8);
2844 ffio_wfourcc(s->pb, "mdat");
2848 track->frag_start += duration;
2850 if (!track->mdat_buf)
2852 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
2853 track->mdat_buf = NULL;
2855 avio_write(s->pb, buf, buf_size);
2865 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2867 MOVMuxContext *mov = s->priv_data;
2868 AVIOContext *pb = s->pb;
2869 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2870 AVCodecContext *enc = trk->enc;
2871 unsigned int samples_in_chunk = 0;
2872 int size = pkt->size;
2873 uint8_t *reformatted_data = NULL;
2875 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
2877 if (mov->fragments > 0) {
2878 if (!trk->mdat_buf) {
2879 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
2884 if (!mov->mdat_buf) {
2885 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
2892 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
2893 /* We must find out how many AMR blocks there are in one packet */
2894 static uint16_t packed_size[16] =
2895 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
2898 while (len < size && samples_in_chunk < 100) {
2899 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2902 if (samples_in_chunk > 1) {
2903 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2906 } else if (trk->sample_size)
2907 samples_in_chunk = size / trk->sample_size;
2909 samples_in_chunk = 1;
2911 /* copy extradata if it exists */
2912 if (trk->vos_len == 0 && enc->extradata_size > 0) {
2913 trk->vos_len = enc->extradata_size;
2914 trk->vos_data = av_malloc(trk->vos_len);
2915 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
2918 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
2919 /* from x264 or from bytestream h264 */
2920 /* nal reformating needed */
2921 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
2922 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
2924 avio_write(pb, reformatted_data, size);
2926 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2929 avio_write(pb, pkt->data, size);
2932 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
2933 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
2934 /* copy frame to create needed atoms */
2935 trk->vos_len = size;
2936 trk->vos_data = av_malloc(size);
2938 return AVERROR(ENOMEM);
2939 memcpy(trk->vos_data, pkt->data, size);
2942 if (trk->entry >= trk->cluster_capacity) {
2943 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
2944 if (av_reallocp_array(&trk->cluster, new_capacity,
2945 sizeof(*trk->cluster)))
2946 return AVERROR(ENOMEM);
2947 trk->cluster_capacity = new_capacity;
2950 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2951 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
2952 trk->cluster[trk->entry].size = size;
2953 trk->cluster[trk->entry].entries = samples_in_chunk;
2954 trk->cluster[trk->entry].dts = pkt->dts;
2955 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
2956 /* First packet of a new fragment. We already wrote the duration
2957 * of the last packet of the previous fragment based on track_duration,
2958 * which might not exactly match our dts. Therefore adjust the dts
2959 * of this packet to be what the previous packets duration implies. */
2960 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
2962 if (trk->start_dts == AV_NOPTS_VALUE)
2963 trk->start_dts = pkt->dts;
2964 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
2966 if (pkt->pts == AV_NOPTS_VALUE) {
2967 av_log(s, AV_LOG_WARNING, "pts has no value\n");
2968 pkt->pts = pkt->dts;
2970 if (pkt->dts != pkt->pts)
2971 trk->flags |= MOV_TRACK_CTTS;
2972 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2973 trk->cluster[trk->entry].flags = 0;
2974 if (enc->codec_id == AV_CODEC_ID_VC1) {
2975 mov_parse_vc1_frame(pkt, trk, mov->fragments);
2976 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
2977 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
2978 trk->entry > 0) { // force sync sample for the first key frame
2979 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2980 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2981 trk->flags |= MOV_TRACK_STPS;
2983 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2985 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2986 trk->has_keyframes++;
2989 trk->sample_count += samples_in_chunk;
2990 mov->mdat_size += size;
2992 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2993 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
2994 reformatted_data, size);
2995 av_free(reformatted_data);
2999 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3002 mov_flush_fragment(s);
3005 MOVMuxContext *mov = s->priv_data;
3006 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3007 AVCodecContext *enc = trk->enc;
3008 int64_t frag_duration = 0;
3009 int size = pkt->size;
3012 return 0; /* Discard 0 sized packets */
3015 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3016 s->streams[pkt->stream_index]->time_base,
3018 if ((mov->max_fragment_duration &&
3019 frag_duration >= mov->max_fragment_duration) ||
3020 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3021 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3022 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3023 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3024 if (frag_duration >= mov->min_fragment_duration)
3025 mov_flush_fragment(s);
3028 return ff_mov_write_packet(s, pkt);
3032 // QuickTime chapters involve an additional text track with the chapter names
3033 // as samples, and a tref pointing from the other tracks to the chapter one.
3034 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3036 MOVMuxContext *mov = s->priv_data;
3037 MOVTrack *track = &mov->tracks[tracknum];
3038 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3040 // These properties are required to make QT recognize the chapter track
3041 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3043 track->mode = mov->mode;
3044 track->tag = MKTAG('t','e','x','t');
3045 track->timescale = MOV_TIMESCALE;
3046 track->enc = avcodec_alloc_context3(NULL);
3048 return AVERROR(ENOMEM);
3049 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3050 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3051 if (track->enc->extradata == NULL)
3052 return AVERROR(ENOMEM);
3053 track->enc->extradata_size = sizeof(chapter_properties);
3054 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3056 for (i = 0; i < s->nb_chapters; i++) {
3057 AVChapter *c = s->chapters[i];
3058 AVDictionaryEntry *t;
3060 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3061 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3062 pkt.duration = end - pkt.dts;
3064 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3065 len = strlen(t->value);
3067 pkt.data = av_malloc(pkt.size);
3069 return AVERROR(ENOMEM);
3070 AV_WB16(pkt.data, len);
3071 memcpy(pkt.data + 2, t->value, len);
3072 ff_mov_write_packet(s, &pkt);
3073 av_freep(&pkt.data);
3081 * st->disposition controls the "enabled" flag in the tkhd tag.
3082 * QuickTime will not play a track if it is not enabled. So make sure
3083 * that one track of each type (audio, video, subtitle) is enabled.
3085 * Subtitles are special. For audio and video, setting "enabled" also
3086 * makes the track "default" (i.e. it is rendered when played). For
3087 * subtitles, an "enabled" subtitle is not rendered by default, but
3088 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3091 static void enable_tracks(AVFormatContext *s)
3093 MOVMuxContext *mov = s->priv_data;
3095 uint8_t enabled[AVMEDIA_TYPE_NB];
3096 int first[AVMEDIA_TYPE_NB];
3098 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3103 for (i = 0; i < s->nb_streams; i++) {
3104 AVStream *st = s->streams[i];
3106 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3107 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3110 if (first[st->codec->codec_type] < 0)
3111 first[st->codec->codec_type] = i;
3112 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3113 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3114 enabled[st->codec->codec_type] = 1;
3118 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3120 case AVMEDIA_TYPE_VIDEO:
3121 case AVMEDIA_TYPE_AUDIO:
3122 case AVMEDIA_TYPE_SUBTITLE:
3123 if (!enabled[i] && first[i] >= 0)
3124 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3130 static void mov_free(AVFormatContext *s)
3132 MOVMuxContext *mov = s->priv_data;
3135 if (mov->chapter_track) {
3136 if (mov->tracks[mov->chapter_track].enc)
3137 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3138 av_freep(&mov->tracks[mov->chapter_track].enc);
3141 for (i = 0; i < mov->nb_streams; i++) {
3142 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3143 ff_mov_close_hinting(&mov->tracks[i]);
3144 av_freep(&mov->tracks[i].cluster);
3145 av_freep(&mov->tracks[i].frag_info);
3147 if (mov->tracks[i].vos_len)
3148 av_free(mov->tracks[i].vos_data);
3151 av_freep(&mov->tracks);
3154 static int mov_write_header(AVFormatContext *s)
3156 AVIOContext *pb = s->pb;
3157 MOVMuxContext *mov = s->priv_data;
3158 AVDictionaryEntry *t;
3159 int i, hint_track = 0;
3161 /* Default mode == MP4 */
3162 mov->mode = MODE_MP4;
3164 if (s->oformat != NULL) {
3165 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3166 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3167 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3168 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3169 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3170 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3171 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3174 /* Set the FRAGMENT flag if any of the fragmentation methods are
3176 if (mov->max_fragment_duration || mov->max_fragment_size ||
3177 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3178 FF_MOV_FLAG_FRAG_KEYFRAME |
3179 FF_MOV_FLAG_FRAG_CUSTOM))
3180 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3182 /* Set other implicit flags immediately */
3183 if (mov->mode == MODE_ISM)
3184 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3185 FF_MOV_FLAG_FRAGMENT;
3187 /* faststart: moov at the beginning of the file, if supported */
3188 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3189 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3190 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3191 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3192 "with fragmentation and custom IO, disabling faststart\n");
3193 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3197 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3198 * is enabled, we don't support non-seekable output at all. */
3199 if (!s->pb->seekable &&
3200 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3201 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3202 return AVERROR(EINVAL);
3206 mov_write_ftyp_tag(pb,s);
3207 if (mov->mode == MODE_PSP) {
3208 if (s->nb_streams != 2) {
3209 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3210 return AVERROR(EINVAL);
3212 mov_write_uuidprof_tag(pb, s);
3215 mov->nb_streams = s->nb_streams;
3216 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3217 mov->chapter_track = mov->nb_streams++;
3219 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3220 /* Add hint tracks for each audio and video stream */
3221 hint_track = mov->nb_streams;
3222 for (i = 0; i < s->nb_streams; i++) {
3223 AVStream *st = s->streams[i];
3224 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3225 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3231 // Reserve an extra stream for chapters for the case where chapters
3232 // are written in the trailer
3233 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3235 return AVERROR(ENOMEM);
3237 for (i = 0; i < s->nb_streams; i++) {
3238 AVStream *st= s->streams[i];
3239 MOVTrack *track= &mov->tracks[i];
3240 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3242 track->enc = st->codec;
3243 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3244 if (track->language < 0)
3245 track->language = 0;
3246 track->mode = mov->mode;
3247 track->tag = mov_find_codec_tag(s, track);
3249 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3250 "codec not currently supported in container\n", i);
3253 /* If hinting of this track is enabled by a later hint track,
3254 * this is updated. */
3255 track->hint_track = -1;
3256 track->start_dts = AV_NOPTS_VALUE;
3257 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3258 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3259 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3260 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3261 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3262 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3265 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3267 track->timescale = st->codec->time_base.den;
3268 if (track->mode == MODE_MOV && track->timescale > 100000)
3269 av_log(s, AV_LOG_WARNING,
3270 "WARNING codec timebase is very high. If duration is too long,\n"
3271 "file may not be playable by quicktime. Specify a shorter timebase\n"
3272 "or choose different container.\n");
3273 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3274 track->timescale = st->codec->sample_rate;
3275 /* set sample_size for PCM and ADPCM */
3276 if (av_get_bits_per_sample(st->codec->codec_id) ||
3277 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3278 if (!st->codec->block_align) {
3279 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3282 track->sample_size = st->codec->block_align;
3284 /* set audio_vbr for compressed audio */
3285 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3286 track->audio_vbr = 1;
3288 if (track->mode != MODE_MOV &&
3289 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3290 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3291 i, track->enc->sample_rate);
3294 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3295 track->timescale = st->codec->time_base.den;
3296 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3297 track->timescale = st->codec->time_base.den;
3300 track->height = st->codec->height;
3301 /* The ism specific timescale isn't mandatory, but is assumed by
3302 * some tools, such as mp4split. */
3303 if (mov->mode == MODE_ISM)
3304 track->timescale = 10000000;
3306 avpriv_set_pts_info(st, 64, 1, track->timescale);
3308 /* copy extradata if it exists */
3309 if (st->codec->extradata_size) {
3310 track->vos_len = st->codec->extradata_size;
3311 track->vos_data = av_malloc(track->vos_len);
3312 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3318 if (mov->mode == MODE_ISM) {
3319 /* If no fragmentation options have been set, set a default. */
3320 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3321 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3322 !mov->max_fragment_duration && !mov->max_fragment_size)
3323 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3326 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3327 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3328 mov->reserved_moov_pos = avio_tell(pb);
3329 mov_write_mdat_tag(pb, mov);
3332 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3333 mov->time = ff_iso8601_to_unix_time(t->value);
3335 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3337 if (mov->chapter_track)
3338 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3341 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3342 /* Initialize the hint tracks for each audio and video stream */
3343 for (i = 0; i < s->nb_streams; i++) {
3344 AVStream *st = s->streams[i];
3345 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3346 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3347 ff_mov_init_hinting(s, hint_track, i);
3355 if (mov->flags & FF_MOV_FLAG_ISML)
3356 mov_write_isml_manifest(pb, mov);
3358 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3359 mov_write_moov_tag(pb, mov, s);
3369 static int get_moov_size(AVFormatContext *s)
3372 AVIOContext *moov_buf;
3373 MOVMuxContext *mov = s->priv_data;
3375 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3377 mov_write_moov_tag(moov_buf, mov, s);
3378 return ffio_close_null_buf(moov_buf);
3382 * This function gets the moov size if moved to the top of the file: the chunk
3383 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3384 * entries) when the moov is moved to the beginning, so the size of the moov
3385 * would change. It also updates the chunk offset tables.
3387 static int compute_moov_size(AVFormatContext *s)
3389 int i, moov_size, moov_size2;
3390 MOVMuxContext *mov = s->priv_data;
3392 moov_size = get_moov_size(s);
3396 for (i = 0; i < mov->nb_streams; i++)
3397 mov->tracks[i].data_offset += moov_size;
3399 moov_size2 = get_moov_size(s);
3403 /* if the size changed, we just switched from stco to co64 and need to
3404 * update the offsets */
3405 if (moov_size2 != moov_size)
3406 for (i = 0; i < mov->nb_streams; i++)
3407 mov->tracks[i].data_offset += moov_size2 - moov_size;
3412 static int shift_data(AVFormatContext *s)
3414 int ret = 0, moov_size;
3415 MOVMuxContext *mov = s->priv_data;
3416 int64_t pos, pos_end = avio_tell(s->pb);
3417 uint8_t *buf, *read_buf[2];
3418 int read_buf_id = 0;
3420 AVIOContext *read_pb;
3422 moov_size = compute_moov_size(s);
3426 buf = av_malloc(moov_size * 2);
3428 return AVERROR(ENOMEM);
3430 read_buf[1] = buf + moov_size;
3432 /* Shift the data: the AVIO context of the output can only be used for
3433 * writing, so we re-open the same output, but for reading. It also avoids
3434 * a read/seek/write/seek back and forth. */
3436 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3438 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3439 "the second pass (faststart)\n", s->filename);
3443 /* mark the end of the shift to up to the last data we wrote, and get ready
3445 pos_end = avio_tell(s->pb);
3446 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3448 /* start reading at where the new moov will be placed */
3449 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3450 pos = avio_tell(read_pb);
3452 #define READ_BLOCK do { \
3453 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3457 /* shift data by chunk of at most moov_size */
3462 n = read_size[read_buf_id];
3465 avio_write(s->pb, read_buf[read_buf_id], n);
3467 } while (pos < pos_end);
3468 avio_close(read_pb);
3475 static int mov_write_trailer(AVFormatContext *s)
3477 MOVMuxContext *mov = s->priv_data;
3478 AVIOContext *pb = s->pb;
3483 // If there were no chapters when the header was written, but there
3484 // are chapters now, write them in the trailer. This only works
3485 // when we are not doing fragments.
3486 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3487 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3488 mov->chapter_track = mov->nb_streams++;
3489 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3494 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3495 moov_pos = avio_tell(pb);
3497 /* Write size of mdat tag */
3498 if (mov->mdat_size + 8 <= UINT32_MAX) {
3499 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3500 avio_wb32(pb, mov->mdat_size + 8);
3502 /* overwrite 'wide' placeholder atom */
3503 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3504 /* special value: real atom size will be 64 bit value after
3507 ffio_wfourcc(pb, "mdat");
3508 avio_wb64(pb, mov->mdat_size + 16);
3510 avio_seek(pb, moov_pos, SEEK_SET);
3512 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3513 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
3514 res = shift_data(s);
3516 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
3517 mov_write_moov_tag(pb, mov, s);
3520 mov_write_moov_tag(pb, mov, s);
3523 mov_flush_fragment(s);
3524 mov_write_mfra_tag(pb, mov);
3527 for (i = 0; i < mov->nb_streams; i++) {
3528 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3529 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3530 int64_t off = avio_tell(pb);
3532 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3533 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3534 avio_write(pb, buf, 7);
3535 avio_seek(pb, off, SEEK_SET);
3546 #if CONFIG_MOV_MUXER
3548 AVOutputFormat ff_mov_muxer = {
3550 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3551 .extensions = "mov",
3552 .priv_data_size = sizeof(MOVMuxContext),
3553 .audio_codec = AV_CODEC_ID_AAC,
3554 .video_codec = CONFIG_LIBX264_ENCODER ?
3555 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3556 .write_header = mov_write_header,
3557 .write_packet = mov_write_packet,
3558 .write_trailer = mov_write_trailer,
3559 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3560 .codec_tag = (const AVCodecTag* const []){
3561 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
3563 .priv_class = &mov_muxer_class,
3566 #if CONFIG_TGP_MUXER
3568 AVOutputFormat ff_tgp_muxer = {
3570 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3571 .extensions = "3gp",
3572 .priv_data_size = sizeof(MOVMuxContext),
3573 .audio_codec = AV_CODEC_ID_AMR_NB,
3574 .video_codec = AV_CODEC_ID_H263,
3575 .write_header = mov_write_header,
3576 .write_packet = mov_write_packet,
3577 .write_trailer = mov_write_trailer,
3578 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3579 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3580 .priv_class = &tgp_muxer_class,
3583 #if CONFIG_MP4_MUXER
3585 AVOutputFormat ff_mp4_muxer = {
3587 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3588 .mime_type = "application/mp4",
3589 .extensions = "mp4",
3590 .priv_data_size = sizeof(MOVMuxContext),
3591 .audio_codec = AV_CODEC_ID_AAC,
3592 .video_codec = CONFIG_LIBX264_ENCODER ?
3593 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3594 .write_header = mov_write_header,
3595 .write_packet = mov_write_packet,
3596 .write_trailer = mov_write_trailer,
3597 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3598 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3599 .priv_class = &mp4_muxer_class,
3602 #if CONFIG_PSP_MUXER
3604 AVOutputFormat ff_psp_muxer = {
3606 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3607 .extensions = "mp4,psp",
3608 .priv_data_size = sizeof(MOVMuxContext),
3609 .audio_codec = AV_CODEC_ID_AAC,
3610 .video_codec = CONFIG_LIBX264_ENCODER ?
3611 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3612 .write_header = mov_write_header,
3613 .write_packet = mov_write_packet,
3614 .write_trailer = mov_write_trailer,
3615 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3616 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3617 .priv_class = &psp_muxer_class,
3620 #if CONFIG_TG2_MUXER
3622 AVOutputFormat ff_tg2_muxer = {
3624 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3625 .extensions = "3g2",
3626 .priv_data_size = sizeof(MOVMuxContext),
3627 .audio_codec = AV_CODEC_ID_AMR_NB,
3628 .video_codec = AV_CODEC_ID_H263,
3629 .write_header = mov_write_header,
3630 .write_packet = mov_write_packet,
3631 .write_trailer = mov_write_trailer,
3632 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3633 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3634 .priv_class = &tg2_muxer_class,
3637 #if CONFIG_IPOD_MUXER
3639 AVOutputFormat ff_ipod_muxer = {
3641 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3642 .mime_type = "application/mp4",
3643 .extensions = "m4v,m4a",
3644 .priv_data_size = sizeof(MOVMuxContext),
3645 .audio_codec = AV_CODEC_ID_AAC,
3646 .video_codec = AV_CODEC_ID_H264,
3647 .write_header = mov_write_header,
3648 .write_packet = mov_write_packet,
3649 .write_trailer = mov_write_trailer,
3650 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3651 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3652 .priv_class = &ipod_muxer_class,
3655 #if CONFIG_ISMV_MUXER
3657 AVOutputFormat ff_ismv_muxer = {
3659 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3660 .mime_type = "application/mp4",
3661 .extensions = "ismv,isma",
3662 .priv_data_size = sizeof(MOVMuxContext),
3663 .audio_codec = AV_CODEC_ID_AAC,
3664 .video_codec = AV_CODEC_ID_H264,
3665 .write_header = mov_write_header,
3666 .write_packet = mov_write_packet,
3667 .write_trailer = mov_write_trailer,
3668 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3669 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3670 .priv_class = &ismv_muxer_class,
3673 #if CONFIG_F4V_MUXER
3675 AVOutputFormat ff_f4v_muxer = {
3677 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
3678 .mime_type = "application/f4v",
3679 .extensions = "f4v",
3680 .priv_data_size = sizeof(MOVMuxContext),
3681 .audio_codec = AV_CODEC_ID_AAC,
3682 .video_codec = AV_CODEC_ID_H264,
3683 .write_header = mov_write_header,
3684 .write_packet = mov_write_packet,
3685 .write_trailer = mov_write_trailer,
3686 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3687 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
3688 .priv_class = &f4v_muxer_class,