3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "avio_internal.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
33 #include "libavcodec/vc1.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/dict.h"
46 static const AVOption options[] = {
47 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
48 { "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" },
49 { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
50 { "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" },
51 { "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" },
52 { "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" },
53 { "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" },
54 { "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" },
55 { "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" },
56 { "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" },
57 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
58 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
59 { "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},
60 { "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},
61 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
62 { "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},
63 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
64 { "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},
65 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
66 { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 #define MOV_CLASS(flavor)\
71 static const AVClass flavor ## _muxer_class = {\
72 .class_name = #flavor " muxer",\
73 .item_name = av_default_item_name,\
75 .version = LIBAVUTIL_VERSION_INT,\
78 static int get_moov_size(AVFormatContext *s);
80 //FIXME support 64 bit variant with wide placeholders
81 static int64_t update_size(AVIOContext *pb, int64_t pos)
83 int64_t curpos = avio_tell(pb);
84 avio_seek(pb, pos, SEEK_SET);
85 avio_wb32(pb, curpos - pos); /* rewrite size */
86 avio_seek(pb, curpos, SEEK_SET);
91 static int supports_edts(MOVMuxContext *mov)
93 // EDTS with fragments is tricky as we don't know the duration when its written
94 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
97 static int co64_required(const MOVTrack *track)
99 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
104 /* Chunk offset atom */
105 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
108 int mode64 = co64_required(track); // use 32 bit size variant if possible
109 int64_t pos = avio_tell(pb);
110 avio_wb32(pb, 0); /* size */
112 ffio_wfourcc(pb, "co64");
114 ffio_wfourcc(pb, "stco");
115 avio_wb32(pb, 0); /* version & flags */
116 avio_wb32(pb, track->chunkCount); /* entry count */
117 for (i = 0; i < track->entry; i++) {
118 if (!track->cluster[i].chunkNum)
121 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
123 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
125 return update_size(pb, pos);
128 /* Sample size atom */
129 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
132 int i, j, entries = 0, tst = -1, oldtst = -1;
134 int64_t pos = avio_tell(pb);
135 avio_wb32(pb, 0); /* size */
136 ffio_wfourcc(pb, "stsz");
137 avio_wb32(pb, 0); /* version & flags */
139 for (i = 0; i < track->entry; i++) {
140 tst = track->cluster[i].size / track->cluster[i].entries;
141 if (oldtst != -1 && tst != oldtst)
144 entries += track->cluster[i].entries;
146 if (equalChunks && track->entry) {
147 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
148 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
149 avio_wb32(pb, sSize); // sample size
150 avio_wb32(pb, entries); // sample count
152 avio_wb32(pb, 0); // sample size
153 avio_wb32(pb, entries); // sample count
154 for (i = 0; i < track->entry; i++) {
155 for (j = 0; j < track->cluster[i].entries; j++) {
156 avio_wb32(pb, track->cluster[i].size /
157 track->cluster[i].entries);
161 return update_size(pb, pos);
164 /* Sample to chunk atom */
165 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
167 int index = 0, oldval = -1, i;
168 int64_t entryPos, curpos;
170 int64_t pos = avio_tell(pb);
171 avio_wb32(pb, 0); /* size */
172 ffio_wfourcc(pb, "stsc");
173 avio_wb32(pb, 0); // version & flags
174 entryPos = avio_tell(pb);
175 avio_wb32(pb, track->chunkCount); // entry count
176 for (i = 0; i < track->entry; i++) {
177 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
178 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
179 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
180 avio_wb32(pb, 0x1); // sample description index
181 oldval = track->cluster[i].samples_in_chunk;
185 curpos = avio_tell(pb);
186 avio_seek(pb, entryPos, SEEK_SET);
187 avio_wb32(pb, index); // rewrite size
188 avio_seek(pb, curpos, SEEK_SET);
190 return update_size(pb, pos);
193 /* Sync sample atom */
194 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
196 int64_t curpos, entryPos;
198 int64_t pos = avio_tell(pb);
199 avio_wb32(pb, 0); // size
200 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
201 avio_wb32(pb, 0); // version & flags
202 entryPos = avio_tell(pb);
203 avio_wb32(pb, track->entry); // entry count
204 for (i = 0; i < track->entry; i++) {
205 if (track->cluster[i].flags & flag) {
206 avio_wb32(pb, i + 1);
210 curpos = avio_tell(pb);
211 avio_seek(pb, entryPos, SEEK_SET);
212 avio_wb32(pb, index); // rewrite size
213 avio_seek(pb, curpos, SEEK_SET);
214 return update_size(pb, pos);
217 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
219 avio_wb32(pb, 0x11); /* size */
220 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
221 else ffio_wfourcc(pb, "damr");
222 ffio_wfourcc(pb, "FFMP");
223 avio_w8(pb, 0); /* decoder version */
225 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
226 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
227 avio_w8(pb, 0x01); /* Frames per sample */
231 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
236 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
238 if (track->vos_len < 7)
242 ffio_wfourcc(pb, "dac3");
244 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
245 fscod = get_bits(&gbc, 2);
246 frmsizecod = get_bits(&gbc, 6);
247 bsid = get_bits(&gbc, 5);
248 bsmod = get_bits(&gbc, 3);
249 acmod = get_bits(&gbc, 3);
251 skip_bits(&gbc, 2); // dsurmod
253 if ((acmod & 1) && acmod != 1)
254 skip_bits(&gbc, 2); // cmixlev
256 skip_bits(&gbc, 2); // surmixlev
258 lfeon = get_bits1(&gbc);
260 init_put_bits(&pbc, buf, sizeof(buf));
261 put_bits(&pbc, 2, fscod);
262 put_bits(&pbc, 5, bsid);
263 put_bits(&pbc, 3, bsmod);
264 put_bits(&pbc, 3, acmod);
265 put_bits(&pbc, 1, lfeon);
266 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
267 put_bits(&pbc, 5, 0); // reserved
269 flush_put_bits(&pbc);
270 avio_write(pb, buf, sizeof(buf));
276 * This function writes extradata "as is".
277 * Extradata must be formatted like a valid atom (with size and tag).
279 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
281 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
282 return track->enc->extradata_size;
285 static int mov_write_enda_tag(AVIOContext *pb)
288 ffio_wfourcc(pb, "enda");
289 avio_wb16(pb, 1); /* little endian */
293 static int mov_write_enda_tag_be(AVIOContext *pb)
296 ffio_wfourcc(pb, "enda");
297 avio_wb16(pb, 0); /* big endian */
301 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
306 avio_w8(pb, (size >> (7 * i)) | 0x80);
307 avio_w8(pb, size & 0x7F);
310 static unsigned compute_avg_bitrate(MOVTrack *track)
314 if (!track->track_duration)
316 for (i = 0; i < track->entry; i++)
317 size += track->cluster[i].size;
318 return size * 8 * track->timescale / track->track_duration;
321 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
323 int64_t pos = avio_tell(pb);
324 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
325 unsigned avg_bitrate;
327 avio_wb32(pb, 0); // size
328 ffio_wfourcc(pb, "esds");
329 avio_wb32(pb, 0); // Version
332 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
333 avio_wb16(pb, track->track_id);
334 avio_w8(pb, 0x00); // flags (= no flags)
336 // DecoderConfig descriptor
337 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
339 // Object type indication
340 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
341 track->enc->codec_id == AV_CODEC_ID_MP3) &&
342 track->enc->sample_rate > 24000)
343 avio_w8(pb, 0x6B); // 11172-3
345 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
347 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
348 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
349 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
350 avio_w8(pb, 0x15); // flags (= Audiostream)
352 avio_w8(pb, 0x11); // flags (= Visualstream)
354 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
356 avg_bitrate = compute_avg_bitrate(track);
357 // maxbitrate (FIXME should be max rate in any 1 sec window)
358 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
359 avio_wb32(pb, avg_bitrate);
361 if (track->vos_len) {
362 // DecoderSpecific info descriptor
363 put_descr(pb, 0x05, track->vos_len);
364 avio_write(pb, track->vos_data, track->vos_len);
368 put_descr(pb, 0x06, 1);
370 return update_size(pb, pos);
373 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
375 return codec_id == AV_CODEC_ID_PCM_S24LE ||
376 codec_id == AV_CODEC_ID_PCM_S32LE ||
377 codec_id == AV_CODEC_ID_PCM_F32LE ||
378 codec_id == AV_CODEC_ID_PCM_F64LE;
381 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
383 return codec_id == AV_CODEC_ID_PCM_S24BE ||
384 codec_id == AV_CODEC_ID_PCM_S32BE ||
385 codec_id == AV_CODEC_ID_PCM_F32BE ||
386 codec_id == AV_CODEC_ID_PCM_F64BE;
389 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
391 int64_t pos = avio_tell(pb);
393 avio_wl32(pb, track->tag); // store it byteswapped
394 track->enc->codec_tag = av_bswap16(track->tag >> 16);
395 ff_put_wav_header(pb, track->enc);
396 return update_size(pb, pos);
399 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
401 int64_t pos = avio_tell(pb);
403 ffio_wfourcc(pb, "wfex");
404 ff_put_wav_header(pb, track->enc);
405 return update_size(pb, pos);
408 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
410 uint32_t layout_tag, bitmap;
411 int64_t pos = avio_tell(pb);
413 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
414 track->enc->channel_layout,
417 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
418 "lack of channel information\n");
422 avio_wb32(pb, 0); // Size
423 ffio_wfourcc(pb, "chan"); // Type
424 avio_w8(pb, 0); // Version
425 avio_wb24(pb, 0); // Flags
426 avio_wb32(pb, layout_tag); // mChannelLayoutTag
427 avio_wb32(pb, bitmap); // mChannelBitmap
428 avio_wb32(pb, 0); // mNumberChannelDescriptions
430 return update_size(pb, pos);
433 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
435 int64_t pos = avio_tell(pb);
437 avio_wb32(pb, 0); /* size */
438 ffio_wfourcc(pb, "wave");
440 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
441 avio_wb32(pb, 12); /* size */
442 ffio_wfourcc(pb, "frma");
443 avio_wl32(pb, track->tag);
446 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
447 /* useless atom needed by mplayer, ipod, not needed by quicktime */
448 avio_wb32(pb, 12); /* size */
449 ffio_wfourcc(pb, "mp4a");
451 mov_write_esds_tag(pb, track);
452 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
453 mov_write_enda_tag(pb);
454 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
455 mov_write_enda_tag_be(pb);
456 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
457 mov_write_amr_tag(pb, track);
458 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
459 mov_write_ac3_tag(pb, track);
460 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
461 track->enc->codec_id == AV_CODEC_ID_QDM2) {
462 mov_write_extradata_tag(pb, track);
463 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
464 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
465 mov_write_ms_tag(pb, track);
468 avio_wb32(pb, 8); /* size */
469 avio_wb32(pb, 0); /* null tag */
471 return update_size(pb, pos);
474 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
477 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
478 int unescaped_size, seq_found = 0;
479 int level = 0, interlace = 0;
480 int packet_seq = track->vc1_info.packet_seq;
481 int packet_entry = track->vc1_info.packet_entry;
482 int slices = track->vc1_info.slices;
485 if (track->start_dts == AV_NOPTS_VALUE) {
486 /* No packets written yet, vc1_info isn't authoritative yet. */
487 /* Assume inline sequence and entry headers. This will be
488 * overwritten at the end if the file is seekable. */
489 packet_seq = packet_entry = 1;
492 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
494 return AVERROR(ENOMEM);
495 start = find_next_marker(track->vos_data, end);
496 for (next = start; next < end; start = next) {
499 next = find_next_marker(start + 4, end);
500 size = next - start - 4;
503 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
504 init_get_bits(&gb, unescaped, 8 * unescaped_size);
505 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
506 int profile = get_bits(&gb, 2);
507 if (profile != PROFILE_ADVANCED) {
509 return AVERROR(ENOSYS);
512 level = get_bits(&gb, 3);
513 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
515 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
516 skip_bits(&gb, 1); /* broadcast */
517 interlace = get_bits1(&gb);
518 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
523 return AVERROR(ENOSYS);
526 init_put_bits(&pbc, buf, 7);
527 /* VC1DecSpecStruc */
528 put_bits(&pbc, 4, 12); /* profile - advanced */
529 put_bits(&pbc, 3, level);
530 put_bits(&pbc, 1, 0); /* reserved */
531 /* VC1AdvDecSpecStruc */
532 put_bits(&pbc, 3, level);
533 put_bits(&pbc, 1, 0); /* cbr */
534 put_bits(&pbc, 6, 0); /* reserved */
535 put_bits(&pbc, 1, !interlace); /* no interlace */
536 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
537 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
538 put_bits(&pbc, 1, !slices); /* no slice code */
539 put_bits(&pbc, 1, 0); /* no bframe */
540 put_bits(&pbc, 1, 0); /* reserved */
541 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
542 flush_put_bits(&pbc);
549 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
551 uint8_t buf[7] = { 0 };
554 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
557 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
558 ffio_wfourcc(pb, "dvc1");
559 track->vc1_info.struct_offset = avio_tell(pb);
560 avio_write(pb, buf, sizeof(buf));
561 avio_write(pb, track->vos_data, track->vos_len);
566 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
568 avio_wb32(pb, track->vos_len + 8);
569 ffio_wfourcc(pb, "glbl");
570 avio_write(pb, track->vos_data, track->vos_len);
571 return 8 + track->vos_len;
575 * Compute flags for 'lpcm' tag.
576 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
578 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
581 case AV_CODEC_ID_PCM_F32BE:
582 case AV_CODEC_ID_PCM_F64BE:
584 case AV_CODEC_ID_PCM_F32LE:
585 case AV_CODEC_ID_PCM_F64LE:
587 case AV_CODEC_ID_PCM_U8:
589 case AV_CODEC_ID_PCM_S16BE:
590 case AV_CODEC_ID_PCM_S24BE:
591 case AV_CODEC_ID_PCM_S32BE:
593 case AV_CODEC_ID_PCM_S8:
594 case AV_CODEC_ID_PCM_S16LE:
595 case AV_CODEC_ID_PCM_S24LE:
596 case AV_CODEC_ID_PCM_S32LE:
603 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
607 if (cluster_idx >= track->entry)
610 if (cluster_idx + 1 == track->entry)
611 next_dts = track->track_duration + track->start_dts;
613 next_dts = track->cluster[cluster_idx + 1].dts;
615 return next_dts - track->cluster[cluster_idx].dts;
618 static int get_samples_per_packet(MOVTrack *track)
620 int i, first_duration;
622 // return track->enc->frame_size;
624 /* use 1 for raw PCM */
625 if (!track->audio_vbr)
628 /* check to see if duration is constant for all clusters */
631 first_duration = get_cluster_duration(track, 0);
632 for (i = 1; i < track->entry; i++) {
633 if (get_cluster_duration(track, i) != first_duration)
636 return first_duration;
639 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
641 int64_t pos = avio_tell(pb);
643 uint32_t tag = track->tag;
645 if (track->mode == MODE_MOV) {
646 if (track->timescale > UINT16_MAX) {
647 if (mov_get_lpcm_flags(track->enc->codec_id))
648 tag = AV_RL32("lpcm");
650 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
651 mov_pcm_be_gt16(track->enc->codec_id) ||
652 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
653 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
654 track->enc->codec_id == AV_CODEC_ID_QDM2) {
659 avio_wb32(pb, 0); /* size */
660 avio_wl32(pb, tag); // store it byteswapped
661 avio_wb32(pb, 0); /* Reserved */
662 avio_wb16(pb, 0); /* Reserved */
663 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
665 /* SoundDescription */
666 avio_wb16(pb, version); /* Version */
667 avio_wb16(pb, 0); /* Revision level */
668 avio_wb32(pb, 0); /* Reserved */
673 avio_wb16(pb, 0xfffe);
675 avio_wb32(pb, 0x00010000);
677 avio_wb64(pb, av_double2int(track->enc->sample_rate));
678 avio_wb32(pb, track->enc->channels);
679 avio_wb32(pb, 0x7F000000);
680 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
681 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
682 avio_wb32(pb, track->sample_size);
683 avio_wb32(pb, get_samples_per_packet(track));
685 if (track->mode == MODE_MOV) {
686 avio_wb16(pb, track->enc->channels);
687 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
688 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
689 avio_wb16(pb, 8); /* bits per sample */
692 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
693 } else { /* reserved for mp4/3gp */
699 avio_wb16(pb, 0); /* packet size (= 0) */
700 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
701 track->enc->sample_rate : 0);
702 avio_wb16(pb, 0); /* Reserved */
705 if (version == 1) { /* SoundDescription V1 extended info */
706 if (mov_pcm_le_gt16(track->enc->codec_id) ||
707 mov_pcm_be_gt16(track->enc->codec_id))
708 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
710 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
711 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
712 avio_wb32(pb, track->sample_size); /* Bytes per frame */
713 avio_wb32(pb, 2); /* Bytes per sample */
716 if (track->mode == MODE_MOV &&
717 (track->enc->codec_id == AV_CODEC_ID_AAC ||
718 track->enc->codec_id == AV_CODEC_ID_AC3 ||
719 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
720 track->enc->codec_id == AV_CODEC_ID_ALAC ||
721 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
722 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
723 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
724 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
725 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
726 mov_write_wave_tag(pb, track);
727 else if (track->tag == MKTAG('m','p','4','a'))
728 mov_write_esds_tag(pb, track);
729 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
730 mov_write_amr_tag(pb, track);
731 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
732 mov_write_ac3_tag(pb, track);
733 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
734 mov_write_extradata_tag(pb, track);
735 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
736 mov_write_wfex_tag(pb, track);
737 else if (track->vos_len > 0)
738 mov_write_glbl_tag(pb, track);
740 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
741 mov_write_chan_tag(pb, track);
743 return update_size(pb, pos);
746 static int mov_write_d263_tag(AVIOContext *pb)
748 avio_wb32(pb, 0xf); /* size */
749 ffio_wfourcc(pb, "d263");
750 ffio_wfourcc(pb, "FFMP");
751 avio_w8(pb, 0); /* decoder version */
752 /* FIXME use AVCodecContext level/profile, when encoder will set values */
753 avio_w8(pb, 0xa); /* level */
754 avio_w8(pb, 0); /* profile */
758 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
760 int64_t pos = avio_tell(pb);
763 ffio_wfourcc(pb, "avcC");
764 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
765 return update_size(pb, pos);
768 /* also used by all avid codecs (dv, imx, meridien) and their variants */
769 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
772 avio_wb32(pb, 24); /* size */
773 ffio_wfourcc(pb, "ACLR");
774 ffio_wfourcc(pb, "ACLR");
775 ffio_wfourcc(pb, "0001");
776 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
777 avio_wb32(pb, 0); /* unknown */
779 avio_wb32(pb, 24); /* size */
780 ffio_wfourcc(pb, "APRG");
781 ffio_wfourcc(pb, "APRG");
782 ffio_wfourcc(pb, "0001");
783 avio_wb32(pb, 1); /* unknown */
784 avio_wb32(pb, 0); /* unknown */
786 avio_wb32(pb, 120); /* size */
787 ffio_wfourcc(pb, "ARES");
788 ffio_wfourcc(pb, "ARES");
789 ffio_wfourcc(pb, "0001");
790 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
791 avio_wb32(pb, track->enc->width);
792 /* values below are based on samples created with quicktime and avid codecs */
793 if (track->vos_data[5] & 2) { // interlaced
794 avio_wb32(pb, track->enc->height / 2);
795 avio_wb32(pb, 2); /* unknown */
796 avio_wb32(pb, 0); /* unknown */
797 avio_wb32(pb, 4); /* unknown */
799 avio_wb32(pb, track->enc->height);
800 avio_wb32(pb, 1); /* unknown */
801 avio_wb32(pb, 0); /* unknown */
802 if (track->enc->height == 1080)
803 avio_wb32(pb, 5); /* unknown */
805 avio_wb32(pb, 6); /* unknown */
808 for (i = 0; i < 10; i++)
811 /* extra padding for stsd needed */
816 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
818 int tag = track->enc->codec_tag;
820 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
823 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
824 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
825 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
826 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
827 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
828 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
829 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
834 static const AVCodecTag codec_ipod_tags[] = {
835 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
836 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
837 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
838 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
839 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
840 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
841 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
842 { AV_CODEC_ID_NONE, 0 },
845 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
847 int tag = track->enc->codec_tag;
849 // keep original tag for subs, ipod supports both formats
850 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
851 (tag == MKTAG('t', 'x', '3', 'g') ||
852 tag == MKTAG('t', 'e', 'x', 't'))))
853 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
855 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
856 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
857 "Quicktime/Ipod might not play the file\n");
862 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
866 if (track->enc->width == 720) { /* SD */
867 if (track->enc->height == 480) { /* NTSC */
868 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
869 else tag = MKTAG('d','v','c',' ');
870 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
871 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
872 else tag = MKTAG('d','v','p','p');
873 } else if (track->enc->height == 720) { /* HD 720 line */
874 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
875 else tag = MKTAG('d','v','h','p');
876 } else if (track->enc->height == 1080) { /* HD 1080 line */
877 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
878 else tag = MKTAG('d','v','h','6');
880 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
887 static const struct {
888 enum AVPixelFormat pix_fmt;
891 } mov_pix_fmt_tags[] = {
892 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
893 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
894 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
895 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
896 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
897 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
898 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
899 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
900 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
901 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
902 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
903 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
904 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
905 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
906 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
909 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
911 int tag = track->enc->codec_tag;
914 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
915 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
916 tag = mov_pix_fmt_tags[i].tag;
917 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
918 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
926 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
928 int tag = track->enc->codec_tag;
930 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
931 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
932 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
933 track->enc->codec_id == AV_CODEC_ID_H263 ||
934 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
935 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
936 tag = mov_get_dv_codec_tag(s, track);
937 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
938 tag = mov_get_rawvideo_codec_tag(s, track);
939 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
940 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
941 if (!tag) { // if no mac fcc found, try with Microsoft tags
942 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
944 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
945 "the file may be unplayable!\n");
947 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
948 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
949 if (!tag) { // if no mac fcc found, try with Microsoft tags
950 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
952 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
953 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
954 "the file may be unplayable!\n");
957 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
958 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
964 static const AVCodecTag codec_3gp_tags[] = {
965 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
966 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
967 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
968 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
969 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
970 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
971 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
972 { AV_CODEC_ID_NONE, 0 },
975 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
976 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
977 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
978 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
979 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
980 { AV_CODEC_ID_NONE, 0 },
983 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
987 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
988 tag = mp4_get_codec_tag(s, track);
989 else if (track->mode == MODE_ISM) {
990 tag = mp4_get_codec_tag(s, track);
991 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
992 tag = MKTAG('w', 'm', 'a', ' ');
993 } else if (track->mode == MODE_IPOD)
994 tag = ipod_get_codec_tag(s, track);
995 else if (track->mode & MODE_3GP)
996 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
997 else if (track->mode & MODE_F4V)
998 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1000 tag = mov_get_codec_tag(s, track);
1005 /** Write uuid atom.
1006 * Needed to make file play in iPods running newest firmware
1007 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1009 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1012 ffio_wfourcc(pb, "uuid");
1013 avio_wb32(pb, 0x6b6840f2);
1014 avio_wb32(pb, 0x5f244fc5);
1015 avio_wb32(pb, 0xba39a51b);
1016 avio_wb32(pb, 0xcf0323f3);
1021 static const uint16_t fiel_data[] = {
1022 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1025 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1027 unsigned mov_field_order = 0;
1028 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1029 mov_field_order = fiel_data[track->enc->field_order];
1033 ffio_wfourcc(pb, "fiel");
1034 avio_wb16(pb, mov_field_order);
1038 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1040 int64_t pos = avio_tell(pb);
1041 avio_wb32(pb, 0); /* size */
1042 avio_wl32(pb, track->tag); // store it byteswapped
1043 avio_wb32(pb, 0); /* Reserved */
1044 avio_wb16(pb, 0); /* Reserved */
1045 avio_wb16(pb, 1); /* Data-reference index */
1047 if (track->enc->extradata_size)
1048 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1050 return update_size(pb, pos);
1053 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1056 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1057 track->enc->sample_aspect_ratio.den, INT_MAX);
1060 ffio_wfourcc(pb, "pasp");
1061 avio_wb32(pb, sar.num);
1062 avio_wb32(pb, sar.den);
1066 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1068 int64_t pos = avio_tell(pb);
1069 char compressor_name[32] = { 0 };
1071 avio_wb32(pb, 0); /* size */
1072 avio_wl32(pb, track->tag); // store it byteswapped
1073 avio_wb32(pb, 0); /* Reserved */
1074 avio_wb16(pb, 0); /* Reserved */
1075 avio_wb16(pb, 1); /* Data-reference index */
1077 avio_wb16(pb, 0); /* Codec stream version */
1078 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1079 if (track->mode == MODE_MOV) {
1080 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1081 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1082 avio_wb32(pb, 0); /* Temporal Quality */
1083 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1085 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1086 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1089 avio_wb32(pb, 0); /* Reserved */
1090 avio_wb32(pb, 0); /* Reserved */
1091 avio_wb32(pb, 0); /* Reserved */
1093 avio_wb16(pb, track->enc->width); /* Video width */
1094 avio_wb16(pb, track->height); /* Video height */
1095 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1096 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1097 avio_wb32(pb, 0); /* Data size (= 0) */
1098 avio_wb16(pb, 1); /* Frame count (= 1) */
1100 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1101 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1102 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1103 avio_w8(pb, strlen(compressor_name));
1104 avio_write(pb, compressor_name, 31);
1106 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1107 avio_wb16(pb, track->enc->bits_per_coded_sample);
1109 avio_wb16(pb, 0x18); /* Reserved */
1110 avio_wb16(pb, 0xffff); /* Reserved */
1111 if (track->tag == MKTAG('m','p','4','v'))
1112 mov_write_esds_tag(pb, track);
1113 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1114 mov_write_d263_tag(pb);
1115 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1116 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1117 mov_write_extradata_tag(pb, track);
1119 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1120 mov_write_avid_tag(pb, track);
1121 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1122 mov_write_avcc_tag(pb, track);
1123 if (track->mode == MODE_IPOD)
1124 mov_write_uuid_tag_ipod(pb);
1125 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1126 mov_write_dvc1_tag(pb, track);
1127 else if (track->vos_len > 0)
1128 mov_write_glbl_tag(pb, track);
1130 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1131 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1132 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1133 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1134 mov_write_fiel_tag(pb, track);
1136 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1137 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1138 mov_write_pasp_tag(pb, track);
1141 return update_size(pb, pos);
1144 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1146 int64_t pos = avio_tell(pb);
1147 avio_wb32(pb, 0); /* size */
1148 ffio_wfourcc(pb, "rtp ");
1149 avio_wb32(pb, 0); /* Reserved */
1150 avio_wb16(pb, 0); /* Reserved */
1151 avio_wb16(pb, 1); /* Data-reference index */
1153 avio_wb16(pb, 1); /* Hint track version */
1154 avio_wb16(pb, 1); /* Highest compatible version */
1155 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1157 avio_wb32(pb, 12); /* size */
1158 ffio_wfourcc(pb, "tims");
1159 avio_wb32(pb, track->timescale);
1161 return update_size(pb, pos);
1164 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1166 int64_t pos = avio_tell(pb);
1168 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1169 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1171 if (nb_frames > 255) {
1172 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1173 return AVERROR(EINVAL);
1176 avio_wb32(pb, 0); /* size */
1177 ffio_wfourcc(pb, "tmcd"); /* Data format */
1178 avio_wb32(pb, 0); /* Reserved */
1179 avio_wb32(pb, 1); /* Data reference index */
1180 avio_wb32(pb, 0); /* Flags */
1181 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1182 avio_wb32(pb, track->timescale); /* Timescale */
1183 avio_wb32(pb, frame_duration); /* Frame duration */
1184 avio_w8(pb, nb_frames); /* Number of frames */
1185 avio_wb24(pb, 0); /* Reserved */
1186 /* TODO: source reference string */
1189 avio_wb32(pb, 0); /* size */
1190 ffio_wfourcc(pb, "tmcd"); /* Data format */
1191 avio_wb32(pb, 0); /* Reserved */
1192 avio_wb32(pb, 1); /* Data reference index */
1193 if (track->enc->extradata_size)
1194 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1196 return update_size(pb, pos);
1199 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1201 int64_t pos = avio_tell(pb);
1202 avio_wb32(pb, 0); /* size */
1203 ffio_wfourcc(pb, "stsd");
1204 avio_wb32(pb, 0); /* version & flags */
1205 avio_wb32(pb, 1); /* entry count */
1206 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1207 mov_write_video_tag(pb, track);
1208 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1209 mov_write_audio_tag(pb, track);
1210 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1211 mov_write_subtitle_tag(pb, track);
1212 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1213 mov_write_rtp_tag(pb, track);
1214 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1215 mov_write_tmcd_tag(pb, track);
1216 return update_size(pb, pos);
1219 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1221 MOVStts *ctts_entries;
1222 uint32_t entries = 0;
1226 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1227 ctts_entries[0].count = 1;
1228 ctts_entries[0].duration = track->cluster[0].cts;
1229 for (i = 1; i < track->entry; i++) {
1230 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1231 ctts_entries[entries].count++; /* compress */
1234 ctts_entries[entries].duration = track->cluster[i].cts;
1235 ctts_entries[entries].count = 1;
1238 entries++; /* last one */
1239 atom_size = 16 + (entries * 8);
1240 avio_wb32(pb, atom_size); /* size */
1241 ffio_wfourcc(pb, "ctts");
1242 avio_wb32(pb, 0); /* version & flags */
1243 avio_wb32(pb, entries); /* entry count */
1244 for (i = 0; i < entries; i++) {
1245 avio_wb32(pb, ctts_entries[i].count);
1246 avio_wb32(pb, ctts_entries[i].duration);
1248 av_free(ctts_entries);
1252 /* Time to sample atom */
1253 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1255 MOVStts *stts_entries;
1256 uint32_t entries = -1;
1260 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1261 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1262 stts_entries[0].count = track->sample_count;
1263 stts_entries[0].duration = 1;
1266 stts_entries = track->entry ?
1267 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1269 for (i = 0; i < track->entry; i++) {
1270 int duration = get_cluster_duration(track, i);
1271 if (i && duration == stts_entries[entries].duration) {
1272 stts_entries[entries].count++; /* compress */
1275 stts_entries[entries].duration = duration;
1276 stts_entries[entries].count = 1;
1279 entries++; /* last one */
1281 atom_size = 16 + (entries * 8);
1282 avio_wb32(pb, atom_size); /* size */
1283 ffio_wfourcc(pb, "stts");
1284 avio_wb32(pb, 0); /* version & flags */
1285 avio_wb32(pb, entries); /* entry count */
1286 for (i = 0; i < entries; i++) {
1287 avio_wb32(pb, stts_entries[i].count);
1288 avio_wb32(pb, stts_entries[i].duration);
1290 av_free(stts_entries);
1294 static int mov_write_dref_tag(AVIOContext *pb)
1296 avio_wb32(pb, 28); /* size */
1297 ffio_wfourcc(pb, "dref");
1298 avio_wb32(pb, 0); /* version & flags */
1299 avio_wb32(pb, 1); /* entry count */
1301 avio_wb32(pb, 0xc); /* size */
1302 //FIXME add the alis and rsrc atom
1303 ffio_wfourcc(pb, "url ");
1304 avio_wb32(pb, 1); /* version & flags */
1309 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1311 int64_t pos = avio_tell(pb);
1312 avio_wb32(pb, 0); /* size */
1313 ffio_wfourcc(pb, "stbl");
1314 mov_write_stsd_tag(pb, track);
1315 mov_write_stts_tag(pb, track);
1316 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1317 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1318 track->has_keyframes && track->has_keyframes < track->entry)
1319 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1320 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1321 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1322 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1323 track->flags & MOV_TRACK_CTTS)
1324 mov_write_ctts_tag(pb, track);
1325 mov_write_stsc_tag(pb, track);
1326 mov_write_stsz_tag(pb, track);
1327 mov_write_stco_tag(pb, track);
1328 return update_size(pb, pos);
1331 static int mov_write_dinf_tag(AVIOContext *pb)
1333 int64_t pos = avio_tell(pb);
1334 avio_wb32(pb, 0); /* size */
1335 ffio_wfourcc(pb, "dinf");
1336 mov_write_dref_tag(pb);
1337 return update_size(pb, pos);
1340 static int mov_write_nmhd_tag(AVIOContext *pb)
1343 ffio_wfourcc(pb, "nmhd");
1348 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1350 int64_t pos = avio_tell(pb);
1351 const char *font = "Lucida Grande";
1352 avio_wb32(pb, 0); /* size */
1353 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1354 avio_wb32(pb, 0); /* version & flags */
1355 avio_wb16(pb, 0); /* text font */
1356 avio_wb16(pb, 0); /* text face */
1357 avio_wb16(pb, 12); /* text size */
1358 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1359 avio_wb16(pb, 0x0000); /* text color (red) */
1360 avio_wb16(pb, 0x0000); /* text color (green) */
1361 avio_wb16(pb, 0x0000); /* text color (blue) */
1362 avio_wb16(pb, 0xffff); /* background color (red) */
1363 avio_wb16(pb, 0xffff); /* background color (green) */
1364 avio_wb16(pb, 0xffff); /* background color (blue) */
1365 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1366 avio_write(pb, font, strlen(font)); /* font name */
1367 return update_size(pb, pos);
1370 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1372 int64_t pos = avio_tell(pb);
1373 avio_wb32(pb, 0); /* size */
1374 ffio_wfourcc(pb, "gmhd");
1375 avio_wb32(pb, 0x18); /* gmin size */
1376 ffio_wfourcc(pb, "gmin");/* generic media info */
1377 avio_wb32(pb, 0); /* version & flags */
1378 avio_wb16(pb, 0x40); /* graphics mode = */
1379 avio_wb16(pb, 0x8000); /* opColor (r?) */
1380 avio_wb16(pb, 0x8000); /* opColor (g?) */
1381 avio_wb16(pb, 0x8000); /* opColor (b?) */
1382 avio_wb16(pb, 0); /* balance */
1383 avio_wb16(pb, 0); /* reserved */
1386 * This special text atom is required for
1387 * Apple Quicktime chapters. The contents
1388 * don't appear to be documented, so the
1389 * bytes are copied verbatim.
1391 if (track->tag != MKTAG('c','6','0','8')) {
1392 avio_wb32(pb, 0x2C); /* size */
1393 ffio_wfourcc(pb, "text");
1394 avio_wb16(pb, 0x01);
1395 avio_wb32(pb, 0x00);
1396 avio_wb32(pb, 0x00);
1397 avio_wb32(pb, 0x00);
1398 avio_wb32(pb, 0x01);
1399 avio_wb32(pb, 0x00);
1400 avio_wb32(pb, 0x00);
1401 avio_wb32(pb, 0x00);
1402 avio_wb32(pb, 0x00004000);
1403 avio_wb16(pb, 0x0000);
1406 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1407 int64_t tmcd_pos = avio_tell(pb);
1408 avio_wb32(pb, 0); /* size */
1409 ffio_wfourcc(pb, "tmcd");
1410 mov_write_tcmi_tag(pb, track);
1411 update_size(pb, tmcd_pos);
1413 return update_size(pb, pos);
1416 static int mov_write_smhd_tag(AVIOContext *pb)
1418 avio_wb32(pb, 16); /* size */
1419 ffio_wfourcc(pb, "smhd");
1420 avio_wb32(pb, 0); /* version & flags */
1421 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1422 avio_wb16(pb, 0); /* reserved */
1426 static int mov_write_vmhd_tag(AVIOContext *pb)
1428 avio_wb32(pb, 0x14); /* size (always 0x14) */
1429 ffio_wfourcc(pb, "vmhd");
1430 avio_wb32(pb, 0x01); /* version & flags */
1431 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1435 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1437 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1438 int64_t pos = avio_tell(pb);
1442 descr = "DataHandler";
1445 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1446 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1448 descr = "VideoHandler";
1449 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1451 descr = "SoundHandler";
1452 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1453 if (track->tag == MKTAG('c','6','0','8')) {
1455 descr = "ClosedCaptionHandler";
1457 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1458 else hdlr_type = "text";
1459 descr = "SubtitleHandler";
1461 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1463 descr = "HintHandler";
1464 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1466 descr = "TimeCodeHandler";
1469 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1470 track->enc->codec_tag);
1472 av_log(track->enc, AV_LOG_WARNING,
1473 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1474 tag_buf, track->enc->codec_tag);
1478 avio_wb32(pb, 0); /* size */
1479 ffio_wfourcc(pb, "hdlr");
1480 avio_wb32(pb, 0); /* Version & flags */
1481 avio_write(pb, hdlr, 4); /* handler */
1482 ffio_wfourcc(pb, hdlr_type); /* handler type */
1483 avio_wb32(pb, 0); /* reserved */
1484 avio_wb32(pb, 0); /* reserved */
1485 avio_wb32(pb, 0); /* reserved */
1486 if (!track || track->mode == MODE_MOV)
1487 avio_w8(pb, strlen(descr)); /* pascal string */
1488 avio_write(pb, descr, strlen(descr)); /* handler description */
1489 if (track && track->mode != MODE_MOV)
1490 avio_w8(pb, 0); /* c string */
1491 return update_size(pb, pos);
1494 static int mov_write_hmhd_tag(AVIOContext *pb)
1496 /* This atom must be present, but leaving the values at zero
1497 * seems harmless. */
1498 avio_wb32(pb, 28); /* size */
1499 ffio_wfourcc(pb, "hmhd");
1500 avio_wb32(pb, 0); /* version, flags */
1501 avio_wb16(pb, 0); /* maxPDUsize */
1502 avio_wb16(pb, 0); /* avgPDUsize */
1503 avio_wb32(pb, 0); /* maxbitrate */
1504 avio_wb32(pb, 0); /* avgbitrate */
1505 avio_wb32(pb, 0); /* reserved */
1509 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1511 int64_t pos = avio_tell(pb);
1512 avio_wb32(pb, 0); /* size */
1513 ffio_wfourcc(pb, "minf");
1514 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1515 mov_write_vmhd_tag(pb);
1516 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1517 mov_write_smhd_tag(pb);
1518 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1519 if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
1520 mov_write_gmhd_tag(pb, track);
1522 mov_write_nmhd_tag(pb);
1524 } else if (track->tag == MKTAG('r','t','p',' ')) {
1525 mov_write_hmhd_tag(pb);
1526 } else if (track->tag == MKTAG('t','m','c','d')) {
1527 mov_write_gmhd_tag(pb, track);
1529 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1530 mov_write_hdlr_tag(pb, NULL);
1531 mov_write_dinf_tag(pb);
1532 mov_write_stbl_tag(pb, track);
1533 return update_size(pb, pos);
1536 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1538 int version = track->track_duration < INT32_MAX ? 0 : 1;
1540 if (track->mode == MODE_ISM)
1543 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1544 ffio_wfourcc(pb, "mdhd");
1545 avio_w8(pb, version);
1546 avio_wb24(pb, 0); /* flags */
1548 avio_wb64(pb, track->time);
1549 avio_wb64(pb, track->time);
1551 avio_wb32(pb, track->time); /* creation time */
1552 avio_wb32(pb, track->time); /* modification time */
1554 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1556 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1558 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1559 avio_wb16(pb, track->language); /* language */
1560 avio_wb16(pb, 0); /* reserved (quality) */
1562 if (version != 0 && track->mode == MODE_MOV) {
1563 av_log(NULL, AV_LOG_ERROR,
1564 "FATAL error, file duration too long for timebase, this file will not be\n"
1565 "playable with quicktime. Choose a different timebase or a different\n"
1566 "container format\n");
1572 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1574 int64_t pos = avio_tell(pb);
1575 avio_wb32(pb, 0); /* size */
1576 ffio_wfourcc(pb, "mdia");
1577 mov_write_mdhd_tag(pb, track);
1578 mov_write_hdlr_tag(pb, track);
1579 mov_write_minf_tag(pb, track);
1580 return update_size(pb, pos);
1583 /* transformation matrix
1587 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1588 int16_t d, int16_t tx, int16_t ty)
1590 avio_wb32(pb, a << 16); /* 16.16 format */
1591 avio_wb32(pb, b << 16); /* 16.16 format */
1592 avio_wb32(pb, 0); /* u in 2.30 format */
1593 avio_wb32(pb, c << 16); /* 16.16 format */
1594 avio_wb32(pb, d << 16); /* 16.16 format */
1595 avio_wb32(pb, 0); /* v in 2.30 format */
1596 avio_wb32(pb, tx << 16); /* 16.16 format */
1597 avio_wb32(pb, ty << 16); /* 16.16 format */
1598 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1601 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1603 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1604 track->timescale, AV_ROUND_UP);
1605 int version = duration < INT32_MAX ? 0 : 1;
1608 if (track->mode == MODE_ISM)
1611 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1612 ffio_wfourcc(pb, "tkhd");
1613 avio_w8(pb, version);
1614 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1615 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1616 MOV_TKHD_FLAG_IN_MOVIE);
1618 avio_wb64(pb, track->time);
1619 avio_wb64(pb, track->time);
1621 avio_wb32(pb, track->time); /* creation time */
1622 avio_wb32(pb, track->time); /* modification time */
1624 avio_wb32(pb, track->track_id); /* track-id */
1625 avio_wb32(pb, 0); /* reserved */
1627 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1629 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1631 avio_wb32(pb, 0); /* reserved */
1632 avio_wb32(pb, 0); /* reserved */
1633 avio_wb16(pb, 0); /* layer */
1634 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1635 /* Volume, only for audio */
1636 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1637 avio_wb16(pb, 0x0100);
1640 avio_wb16(pb, 0); /* reserved */
1642 /* Matrix structure */
1643 if (st && st->metadata) {
1644 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1645 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1647 if (rotation == 90) {
1648 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1649 } else if (rotation == 180) {
1650 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1651 } else if (rotation == 270) {
1652 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1654 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1656 /* Track width and height, for visual only */
1657 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1658 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1659 if (track->mode == MODE_MOV) {
1660 avio_wb32(pb, track->enc->width << 16);
1661 avio_wb32(pb, track->height << 16);
1663 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1664 if (!sample_aspect_ratio || track->height != track->enc->height)
1665 sample_aspect_ratio = 1;
1666 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1667 avio_wb32(pb, track->height * 0x10000);
1676 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1678 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1679 track->enc->sample_aspect_ratio.den);
1681 int64_t pos = avio_tell(pb);
1683 avio_wb32(pb, 0); /* size */
1684 ffio_wfourcc(pb, "tapt");
1687 ffio_wfourcc(pb, "clef");
1689 avio_wb32(pb, width << 16);
1690 avio_wb32(pb, track->enc->height << 16);
1693 ffio_wfourcc(pb, "prof");
1695 avio_wb32(pb, width << 16);
1696 avio_wb32(pb, track->enc->height << 16);
1699 ffio_wfourcc(pb, "enof");
1701 avio_wb32(pb, track->enc->width << 16);
1702 avio_wb32(pb, track->enc->height << 16);
1704 return update_size(pb, pos);
1707 // This box seems important for the psp playback ... without it the movie seems to hang
1708 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1710 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1711 track->timescale, AV_ROUND_UP);
1712 int version = duration < INT32_MAX ? 0 : 1;
1713 int entry_size, entry_count, size;
1714 int64_t delay, start_ct = track->cluster[0].cts;
1715 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1716 track->timescale, AV_ROUND_DOWN);
1717 version |= delay < INT32_MAX ? 0 : 1;
1719 entry_size = (version == 1) ? 20 : 12;
1720 entry_count = 1 + (delay > 0);
1721 size = 24 + entry_count * entry_size;
1723 /* write the atom data */
1724 avio_wb32(pb, size);
1725 ffio_wfourcc(pb, "edts");
1726 avio_wb32(pb, size - 8);
1727 ffio_wfourcc(pb, "elst");
1728 avio_w8(pb, version);
1729 avio_wb24(pb, 0); /* flags */
1731 avio_wb32(pb, entry_count);
1732 if (delay > 0) { /* add an empty edit to delay presentation */
1734 avio_wb64(pb, delay);
1737 avio_wb32(pb, delay);
1740 avio_wb32(pb, 0x00010000);
1742 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1743 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1749 avio_wb64(pb, duration);
1750 avio_wb64(pb, start_ct);
1752 avio_wb32(pb, duration);
1753 avio_wb32(pb, start_ct);
1755 avio_wb32(pb, 0x00010000);
1759 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1761 avio_wb32(pb, 20); // size
1762 ffio_wfourcc(pb, "tref");
1763 avio_wb32(pb, 12); // size (subatom)
1764 avio_wl32(pb, track->tref_tag);
1765 avio_wb32(pb, track->tref_id);
1769 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1770 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1772 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1773 ffio_wfourcc(pb, "uuid");
1774 ffio_wfourcc(pb, "USMT");
1775 avio_wb32(pb, 0x21d24fce);
1776 avio_wb32(pb, 0xbb88695c);
1777 avio_wb32(pb, 0xfac9c740);
1778 avio_wb32(pb, 0x1c); // another size here!
1779 ffio_wfourcc(pb, "MTDT");
1780 avio_wb32(pb, 0x00010012);
1781 avio_wb32(pb, 0x0a);
1782 avio_wb32(pb, 0x55c40000);
1788 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1790 AVFormatContext *ctx = track->rtp_ctx;
1791 char buf[1000] = "";
1794 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1795 NULL, NULL, 0, 0, ctx);
1796 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1799 avio_wb32(pb, len + 24);
1800 ffio_wfourcc(pb, "udta");
1801 avio_wb32(pb, len + 16);
1802 ffio_wfourcc(pb, "hnti");
1803 avio_wb32(pb, len + 8);
1804 ffio_wfourcc(pb, "sdp ");
1805 avio_write(pb, buf, len);
1809 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1810 MOVTrack *track, AVStream *st)
1812 int64_t pos = avio_tell(pb);
1813 avio_wb32(pb, 0); /* size */
1814 ffio_wfourcc(pb, "trak");
1815 mov_write_tkhd_tag(pb, track, st);
1816 if (supports_edts(mov))
1817 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1818 if (track->tref_tag)
1819 mov_write_tref_tag(pb, track);
1820 mov_write_mdia_tag(pb, track);
1821 if (track->mode == MODE_PSP)
1822 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1823 if (track->tag == MKTAG('r','t','p',' '))
1824 mov_write_udta_sdp(pb, track);
1825 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1826 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1827 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
1828 mov_write_tapt_tag(pb, track);
1830 return update_size(pb, pos);
1833 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1835 int i, has_audio = 0, has_video = 0;
1836 int64_t pos = avio_tell(pb);
1837 int audio_profile = mov->iods_audio_profile;
1838 int video_profile = mov->iods_video_profile;
1839 for (i = 0; i < mov->nb_streams; i++) {
1840 if (mov->tracks[i].entry > 0) {
1841 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1842 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1845 if (audio_profile < 0)
1846 audio_profile = 0xFF - has_audio;
1847 if (video_profile < 0)
1848 video_profile = 0xFF - has_video;
1849 avio_wb32(pb, 0x0); /* size */
1850 ffio_wfourcc(pb, "iods");
1851 avio_wb32(pb, 0); /* version & flags */
1852 put_descr(pb, 0x10, 7);
1853 avio_wb16(pb, 0x004f);
1856 avio_w8(pb, audio_profile);
1857 avio_w8(pb, video_profile);
1859 return update_size(pb, pos);
1862 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1864 avio_wb32(pb, 0x20); /* size */
1865 ffio_wfourcc(pb, "trex");
1866 avio_wb32(pb, 0); /* version & flags */
1867 avio_wb32(pb, track->track_id); /* track ID */
1868 avio_wb32(pb, 1); /* default sample description index */
1869 avio_wb32(pb, 0); /* default sample duration */
1870 avio_wb32(pb, 0); /* default sample size */
1871 avio_wb32(pb, 0); /* default sample flags */
1875 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1877 int64_t pos = avio_tell(pb);
1879 avio_wb32(pb, 0x0); /* size */
1880 ffio_wfourcc(pb, "mvex");
1881 for (i = 0; i < mov->nb_streams; i++)
1882 mov_write_trex_tag(pb, &mov->tracks[i]);
1883 return update_size(pb, pos);
1886 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1888 int max_track_id = 1, i;
1889 int64_t max_track_len_temp, max_track_len = 0;
1892 for (i = 0; i < mov->nb_streams; i++) {
1893 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1894 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1896 mov->tracks[i].timescale,
1898 if (max_track_len < max_track_len_temp)
1899 max_track_len = max_track_len_temp;
1900 if (max_track_id < mov->tracks[i].track_id)
1901 max_track_id = mov->tracks[i].track_id;
1905 version = max_track_len < UINT32_MAX ? 0 : 1;
1906 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1907 ffio_wfourcc(pb, "mvhd");
1908 avio_w8(pb, version);
1909 avio_wb24(pb, 0); /* flags */
1911 avio_wb64(pb, mov->time);
1912 avio_wb64(pb, mov->time);
1914 avio_wb32(pb, mov->time); /* creation time */
1915 avio_wb32(pb, mov->time); /* modification time */
1917 avio_wb32(pb, MOV_TIMESCALE);
1918 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1920 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1921 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1922 avio_wb16(pb, 0); /* reserved */
1923 avio_wb32(pb, 0); /* reserved */
1924 avio_wb32(pb, 0); /* reserved */
1926 /* Matrix structure */
1927 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1929 avio_wb32(pb, 0); /* reserved (preview time) */
1930 avio_wb32(pb, 0); /* reserved (preview duration) */
1931 avio_wb32(pb, 0); /* reserved (poster time) */
1932 avio_wb32(pb, 0); /* reserved (selection time) */
1933 avio_wb32(pb, 0); /* reserved (selection duration) */
1934 avio_wb32(pb, 0); /* reserved (current time) */
1935 avio_wb32(pb, max_track_id + 1); /* Next track id */
1939 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1942 avio_wb32(pb, 33); /* size */
1943 ffio_wfourcc(pb, "hdlr");
1946 ffio_wfourcc(pb, "mdir");
1947 ffio_wfourcc(pb, "appl");
1954 /* helper function to write a data tag with the specified string as data */
1955 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1958 int size = 16 + strlen(data);
1959 avio_wb32(pb, size); /* size */
1960 ffio_wfourcc(pb, "data");
1963 avio_write(pb, data, strlen(data));
1967 lang = ff_mov_iso639_to_lang("und", 1);
1968 avio_wb16(pb, strlen(data)); /* string length */
1969 avio_wb16(pb, lang);
1970 avio_write(pb, data, strlen(data));
1971 return strlen(data) + 4;
1975 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1976 const char *value, int lang, int long_style)
1979 if (value && value[0]) {
1980 int64_t pos = avio_tell(pb);
1981 avio_wb32(pb, 0); /* size */
1982 ffio_wfourcc(pb, name);
1983 mov_write_string_data_tag(pb, value, lang, long_style);
1984 size = update_size(pb, pos);
1989 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1990 const char *name, const char *tag,
1993 int l, lang = 0, len, len2;
1994 AVDictionaryEntry *t, *t2 = NULL;
1997 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2000 len = strlen(t->key);
2001 snprintf(tag2, sizeof(tag2), "%s-", tag);
2002 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2003 len2 = strlen(t2->key);
2004 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2005 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2010 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2013 /* iTunes bpm number */
2014 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2016 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2017 int size = 0, tmpo = t ? atoi(t->value) : 0;
2020 avio_wb32(pb, size);
2021 ffio_wfourcc(pb, "tmpo");
2022 avio_wb32(pb, size-8); /* size */
2023 ffio_wfourcc(pb, "data");
2024 avio_wb32(pb, 0x15); //type specifier
2026 avio_wb16(pb, tmpo); // data
2031 /* iTunes track or disc number */
2032 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2033 AVFormatContext *s, int disc)
2035 AVDictionaryEntry *t = av_dict_get(s->metadata,
2036 disc ? "disc" : "track",
2038 int size = 0, track = t ? atoi(t->value) : 0;
2041 char *slash = strchr(t->value, '/');
2043 tracks = atoi(slash + 1);
2044 avio_wb32(pb, 32); /* size */
2045 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2046 avio_wb32(pb, 24); /* size */
2047 ffio_wfourcc(pb, "data");
2048 avio_wb32(pb, 0); // 8 bytes empty
2050 avio_wb16(pb, 0); // empty
2051 avio_wb16(pb, track); // track / disc number
2052 avio_wb16(pb, tracks); // total track / disc number
2053 avio_wb16(pb, 0); // empty
2059 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2060 const char *name, const char *tag,
2063 AVDictionaryEntry *t = NULL;
2065 int size = 24 + len;
2067 if (len != 1 && len != 4)
2070 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2072 num = atoi(t->value);
2074 avio_wb32(pb, size);
2075 ffio_wfourcc(pb, name);
2076 avio_wb32(pb, size - 8);
2077 ffio_wfourcc(pb, "data");
2078 avio_wb32(pb, 0x15);
2080 if (len==4) avio_wb32(pb, num);
2081 else avio_w8 (pb, num);
2086 /* iTunes meta data list */
2087 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2090 int64_t pos = avio_tell(pb);
2091 avio_wb32(pb, 0); /* size */
2092 ffio_wfourcc(pb, "ilst");
2093 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2094 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2095 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2096 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2097 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2098 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2099 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2100 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2101 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2102 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2103 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2104 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2105 mov_write_string_metadata(s, pb, "desc", "description",1);
2106 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2107 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2108 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2109 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2110 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2111 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2112 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2113 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2114 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2115 mov_write_trkn_tag(pb, mov, s, 0); // track number
2116 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2117 mov_write_tmpo_tag(pb, s);
2118 return update_size(pb, pos);
2121 /* iTunes meta data tag */
2122 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2126 int64_t pos = avio_tell(pb);
2127 avio_wb32(pb, 0); /* size */
2128 ffio_wfourcc(pb, "meta");
2130 mov_write_itunes_hdlr_tag(pb, mov, s);
2131 mov_write_ilst_tag(pb, mov, s);
2132 size = update_size(pb, pos);
2136 static int utf8len(const uint8_t *b)
2141 GET_UTF8(val, *b++, return -1;)
2147 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2151 GET_UTF8(val, *b++, return -1;)
2154 avio_wb16(pb, 0x00);
2158 static uint16_t language_code(const char *str)
2160 return (((str[0] - 0x60) & 0x1F) << 10) +
2161 (((str[1] - 0x60) & 0x1F) << 5) +
2162 (( str[2] - 0x60) & 0x1F);
2165 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2166 const char *tag, const char *str)
2168 int64_t pos = avio_tell(pb);
2169 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2170 if (!t || !utf8len(t->value))
2172 avio_wb32(pb, 0); /* size */
2173 ffio_wfourcc(pb, tag); /* type */
2174 avio_wb32(pb, 0); /* version + flags */
2175 if (!strcmp(tag, "yrrc"))
2176 avio_wb16(pb, atoi(t->value));
2178 avio_wb16(pb, language_code("eng")); /* language */
2179 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2180 if (!strcmp(tag, "albm") &&
2181 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2182 avio_w8(pb, atoi(t->value));
2184 return update_size(pb, pos);
2187 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2189 int64_t pos = avio_tell(pb);
2190 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2192 avio_wb32(pb, 0); // size
2193 ffio_wfourcc(pb, "chpl");
2194 avio_wb32(pb, 0x01000000); // version + flags
2195 avio_wb32(pb, 0); // unknown
2196 avio_w8(pb, nb_chapters);
2198 for (i = 0; i < nb_chapters; i++) {
2199 AVChapter *c = s->chapters[i];
2200 AVDictionaryEntry *t;
2201 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2203 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2204 int len = FFMIN(strlen(t->value), 255);
2206 avio_write(pb, t->value, len);
2210 return update_size(pb, pos);
2213 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2216 AVIOContext *pb_buf;
2220 for (i = 0; i < s->nb_streams; i++)
2221 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
2225 ret = avio_open_dyn_buf(&pb_buf);
2229 if (mov->mode & MODE_3GP) {
2230 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2231 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2232 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2233 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2234 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2235 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2236 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2237 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2238 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2239 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2240 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2241 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2242 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2243 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2244 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2245 // currently ignored by mov.c
2246 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2247 // add support for libquicktime, this atom is also actually read by mov.c
2248 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2249 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2250 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2252 /* iTunes meta data */
2253 mov_write_meta_tag(pb_buf, mov, s);
2257 mov_write_chpl_tag(pb_buf, s);
2259 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2260 avio_wb32(pb, size + 8);
2261 ffio_wfourcc(pb, "udta");
2262 avio_write(pb, buf, size);
2269 static void mov_write_psp_udta_tag(AVIOContext *pb,
2270 const char *str, const char *lang, int type)
2272 int len = utf8len(str) + 1;
2275 avio_wb16(pb, len * 2 + 10); /* size */
2276 avio_wb32(pb, type); /* type */
2277 avio_wb16(pb, language_code(lang)); /* language */
2278 avio_wb16(pb, 0x01); /* ? */
2279 ascii_to_wc(pb, str);
2282 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2284 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2288 pos = avio_tell(pb);
2289 avio_wb32(pb, 0); /* size placeholder*/
2290 ffio_wfourcc(pb, "uuid");
2291 ffio_wfourcc(pb, "USMT");
2292 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2293 avio_wb32(pb, 0xbb88695c);
2294 avio_wb32(pb, 0xfac9c740);
2296 pos2 = avio_tell(pb);
2297 avio_wb32(pb, 0); /* size placeholder*/
2298 ffio_wfourcc(pb, "MTDT");
2302 avio_wb16(pb, 0x0C); /* size */
2303 avio_wb32(pb, 0x0B); /* type */
2304 avio_wb16(pb, language_code("und")); /* language */
2305 avio_wb16(pb, 0x0); /* ? */
2306 avio_wb16(pb, 0x021C); /* data */
2308 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2309 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2310 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2312 update_size(pb, pos2);
2313 return update_size(pb, pos);
2319 static void build_chunks(MOVTrack *trk)
2322 MOVIentry *chunk = &trk->cluster[0];
2323 uint64_t chunkSize = chunk->size;
2324 chunk->chunkNum = 1;
2325 if (trk->chunkCount)
2327 trk->chunkCount = 1;
2328 for (i = 1; i<trk->entry; i++){
2329 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2330 chunkSize + trk->cluster[i].size < (1<<20)){
2331 chunkSize += trk->cluster[i].size;
2332 chunk->samples_in_chunk += trk->cluster[i].entries;
2334 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2335 chunk=&trk->cluster[i];
2336 chunkSize = chunk->size;
2342 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2346 int64_t pos = avio_tell(pb);
2347 avio_wb32(pb, 0); /* size placeholder*/
2348 ffio_wfourcc(pb, "moov");
2350 for (i = 0; i < mov->nb_streams; i++) {
2351 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2354 mov->tracks[i].time = mov->time;
2355 mov->tracks[i].track_id = i + 1;
2357 if (mov->tracks[i].entry)
2358 build_chunks(&mov->tracks[i]);
2361 if (mov->chapter_track)
2362 for (i = 0; i < s->nb_streams; i++) {
2363 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2364 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2366 for (i = 0; i < mov->nb_streams; i++) {
2367 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2368 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2369 mov->tracks[i].tref_id =
2370 mov->tracks[mov->tracks[i].src_track].track_id;
2373 for (i = 0; i < mov->nb_streams; i++) {
2374 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2375 int src_trk = mov->tracks[i].src_track;
2376 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2377 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2378 mov->tracks[i].track_duration = mov->tracks[src_trk].track_duration;
2382 mov_write_mvhd_tag(pb, mov);
2383 if (mov->mode != MODE_MOV && !mov->iods_skip)
2384 mov_write_iods_tag(pb, mov);
2385 for (i = 0; i < mov->nb_streams; i++) {
2386 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2387 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2390 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2391 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2393 if (mov->mode == MODE_PSP)
2394 mov_write_uuidusmt_tag(pb, s);
2396 mov_write_udta_tag(pb, mov, s);
2398 return update_size(pb, pos);
2401 static void param_write_int(AVIOContext *pb, const char *name, int value)
2403 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2406 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2408 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2411 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2414 len = FFMIN(sizeof(buf) / 2 - 1, len);
2415 ff_data_to_hex(buf, value, len, 0);
2416 buf[2 * len] = '\0';
2417 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2420 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2422 int64_t pos = avio_tell(pb);
2424 static const uint8_t uuid[] = {
2425 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2426 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2430 ffio_wfourcc(pb, "uuid");
2431 avio_write(pb, uuid, sizeof(uuid));
2434 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2435 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2436 avio_printf(pb, "<head>\n");
2437 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2439 avio_printf(pb, "</head>\n");
2440 avio_printf(pb, "<body>\n");
2441 avio_printf(pb, "<switch>\n");
2442 for (i = 0; i < mov->nb_streams; i++) {
2443 MOVTrack *track = &mov->tracks[i];
2445 /* track->track_id is initialized in write_moov, and thus isn't known
2447 int track_id = i + 1;
2449 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2451 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2456 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2457 track->enc->bit_rate);
2458 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2459 param_write_int(pb, "trackID", track_id);
2460 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2461 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2463 int size = track->enc->extradata_size;
2464 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2466 param_write_hex(pb, "CodecPrivateData",
2467 ptr ? ptr : track->enc->extradata,
2471 param_write_string(pb, "FourCC", "H264");
2472 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2473 param_write_string(pb, "FourCC", "WVC1");
2474 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2475 track->enc->extradata_size);
2477 param_write_int(pb, "MaxWidth", track->enc->width);
2478 param_write_int(pb, "MaxHeight", track->enc->height);
2479 param_write_int(pb, "DisplayWidth", track->enc->width);
2480 param_write_int(pb, "DisplayHeight", track->enc->height);
2482 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2483 param_write_string(pb, "FourCC", "AACL");
2484 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2485 param_write_string(pb, "FourCC", "WMAP");
2487 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2488 track->enc->extradata_size);
2489 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2490 track->enc->codec_id));
2491 param_write_int(pb, "Channels", track->enc->channels);
2492 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2493 param_write_int(pb, "BitsPerSample", 16);
2494 param_write_int(pb, "PacketSize", track->enc->block_align ?
2495 track->enc->block_align : 4);
2497 avio_printf(pb, "</%s>\n", type);
2499 avio_printf(pb, "</switch>\n");
2500 avio_printf(pb, "</body>\n");
2501 avio_printf(pb, "</smil>\n");
2503 return update_size(pb, pos);
2506 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2509 ffio_wfourcc(pb, "mfhd");
2511 avio_wb32(pb, mov->fragments);
2515 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2516 MOVTrack *track, int64_t moof_offset)
2518 int64_t pos = avio_tell(pb);
2519 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2520 MOV_TFHD_BASE_DATA_OFFSET;
2521 if (!track->entry) {
2522 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2524 flags |= MOV_TFHD_DEFAULT_FLAGS;
2526 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2527 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2529 /* Don't set a default sample size, the silverlight player refuses
2530 * to play files with that set. Don't set a default sample duration,
2531 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2532 * file format says it MUST NOT be set. */
2533 if (track->mode == MODE_ISM)
2534 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2535 MOV_TFHD_BASE_DATA_OFFSET);
2537 avio_wb32(pb, 0); /* size placeholder */
2538 ffio_wfourcc(pb, "tfhd");
2539 avio_w8(pb, 0); /* version */
2540 avio_wb24(pb, flags);
2542 avio_wb32(pb, track->track_id); /* track-id */
2543 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2544 avio_wb64(pb, moof_offset);
2545 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2546 track->default_duration = get_cluster_duration(track, 0);
2547 avio_wb32(pb, track->default_duration);
2549 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2550 track->default_size = track->entry ? track->cluster[0].size : 1;
2551 avio_wb32(pb, track->default_size);
2553 track->default_size = -1;
2555 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2556 track->default_sample_flags =
2557 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2558 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2559 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2560 avio_wb32(pb, track->default_sample_flags);
2563 return update_size(pb, pos);
2566 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2568 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2569 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2572 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2573 MOVTrack *track, int moof_size)
2575 int64_t pos = avio_tell(pb);
2576 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2579 for (i = 0; i < track->entry; i++) {
2580 if (get_cluster_duration(track, i) != track->default_duration)
2581 flags |= MOV_TRUN_SAMPLE_DURATION;
2582 if (track->cluster[i].size != track->default_size)
2583 flags |= MOV_TRUN_SAMPLE_SIZE;
2584 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2585 flags |= MOV_TRUN_SAMPLE_FLAGS;
2587 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2588 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2589 if (track->flags & MOV_TRACK_CTTS)
2590 flags |= MOV_TRUN_SAMPLE_CTS;
2592 avio_wb32(pb, 0); /* size placeholder */
2593 ffio_wfourcc(pb, "trun");
2594 avio_w8(pb, 0); /* version */
2595 avio_wb24(pb, flags);
2597 avio_wb32(pb, track->entry); /* sample count */
2598 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2599 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2600 track->track_id != 1)
2601 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2603 avio_wb32(pb, moof_size + 8 + track->data_offset +
2604 track->cluster[0].pos); /* data offset */
2605 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2606 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2608 for (i = 0; i < track->entry; i++) {
2609 if (flags & MOV_TRUN_SAMPLE_DURATION)
2610 avio_wb32(pb, get_cluster_duration(track, i));
2611 if (flags & MOV_TRUN_SAMPLE_SIZE)
2612 avio_wb32(pb, track->cluster[i].size);
2613 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2614 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2615 if (flags & MOV_TRUN_SAMPLE_CTS)
2616 avio_wb32(pb, track->cluster[i].cts);
2619 return update_size(pb, pos);
2622 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2624 int64_t pos = avio_tell(pb);
2625 static const uint8_t uuid[] = {
2626 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2627 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2630 avio_wb32(pb, 0); /* size placeholder */
2631 ffio_wfourcc(pb, "uuid");
2632 avio_write(pb, uuid, sizeof(uuid));
2635 avio_wb64(pb, track->frag_start);
2636 avio_wb64(pb, track->start_dts + track->track_duration -
2637 track->cluster[0].dts);
2639 return update_size(pb, pos);
2642 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2643 MOVTrack *track, int entry)
2645 int n = track->nb_frag_info - 1 - entry, i;
2646 int size = 8 + 16 + 4 + 1 + 16*n;
2647 static const uint8_t uuid[] = {
2648 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2649 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2655 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2656 avio_wb32(pb, size);
2657 ffio_wfourcc(pb, "uuid");
2658 avio_write(pb, uuid, sizeof(uuid));
2662 for (i = 0; i < n; i++) {
2663 int index = entry + 1 + i;
2664 avio_wb64(pb, track->frag_info[index].time);
2665 avio_wb64(pb, track->frag_info[index].duration);
2667 if (n < mov->ism_lookahead) {
2668 int free_size = 16 * (mov->ism_lookahead - n);
2669 avio_wb32(pb, free_size);
2670 ffio_wfourcc(pb, "free");
2671 ffio_fill(pb, 0, free_size - 8);
2677 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2680 int64_t pos = avio_tell(pb);
2682 for (i = 0; i < mov->ism_lookahead; i++) {
2683 /* Update the tfrf tag for the last ism_lookahead fragments,
2684 * nb_frag_info - 1 is the next fragment to be written. */
2685 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2687 avio_seek(pb, pos, SEEK_SET);
2691 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2692 MOVTrack *track, int64_t moof_offset,
2695 int64_t pos = avio_tell(pb);
2696 avio_wb32(pb, 0); /* size placeholder */
2697 ffio_wfourcc(pb, "traf");
2699 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2700 mov_write_trun_tag(pb, mov, track, moof_size);
2701 if (mov->mode == MODE_ISM) {
2702 mov_write_tfxd_tag(pb, track);
2704 if (mov->ism_lookahead) {
2705 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2707 track->tfrf_offset = avio_tell(pb);
2708 avio_wb32(pb, 8 + size);
2709 ffio_wfourcc(pb, "free");
2710 for (i = 0; i < size; i++)
2715 return update_size(pb, pos);
2718 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2719 int tracks, int moof_size)
2721 int64_t pos = avio_tell(pb);
2724 avio_wb32(pb, 0); /* size placeholder */
2725 ffio_wfourcc(pb, "moof");
2727 mov_write_mfhd_tag(pb, mov);
2728 for (i = 0; i < mov->nb_streams; i++) {
2729 MOVTrack *track = &mov->tracks[i];
2730 if (tracks >= 0 && i != tracks)
2734 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2737 return update_size(pb, pos);
2740 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2742 AVIOContext *avio_buf;
2745 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2747 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2748 moof_size = ffio_close_null_buf(avio_buf);
2749 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2752 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2754 int64_t pos = avio_tell(pb);
2757 avio_wb32(pb, 0); /* size placeholder */
2758 ffio_wfourcc(pb, "tfra");
2759 avio_w8(pb, 1); /* version */
2762 avio_wb32(pb, track->track_id);
2763 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2764 avio_wb32(pb, track->nb_frag_info);
2765 for (i = 0; i < track->nb_frag_info; i++) {
2766 avio_wb64(pb, track->frag_info[i].time);
2767 avio_wb64(pb, track->frag_info[i].offset);
2768 avio_w8(pb, 1); /* traf number */
2769 avio_w8(pb, 1); /* trun number */
2770 avio_w8(pb, 1); /* sample number */
2773 return update_size(pb, pos);
2776 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2778 int64_t pos = avio_tell(pb);
2781 avio_wb32(pb, 0); /* size placeholder */
2782 ffio_wfourcc(pb, "mfra");
2783 /* An empty mfra atom is enough to indicate to the publishing point that
2784 * the stream has ended. */
2785 if (mov->flags & FF_MOV_FLAG_ISML)
2786 return update_size(pb, pos);
2788 for (i = 0; i < mov->nb_streams; i++) {
2789 MOVTrack *track = &mov->tracks[i];
2790 if (track->nb_frag_info)
2791 mov_write_tfra_tag(pb, track);
2795 ffio_wfourcc(pb, "mfro");
2796 avio_wb32(pb, 0); /* version + flags */
2797 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2799 return update_size(pb, pos);
2802 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2804 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2805 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2807 mov->mdat_pos = avio_tell(pb);
2808 avio_wb32(pb, 0); /* size placeholder*/
2809 ffio_wfourcc(pb, "mdat");
2813 /* TODO: This needs to be more general */
2814 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2816 MOVMuxContext *mov = s->priv_data;
2817 int64_t pos = avio_tell(pb);
2818 int has_h264 = 0, has_video = 0;
2822 for (i = 0; i < s->nb_streams; i++) {
2823 AVStream *st = s->streams[i];
2824 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2826 if (st->codec->codec_id == AV_CODEC_ID_H264)
2830 avio_wb32(pb, 0); /* size */
2831 ffio_wfourcc(pb, "ftyp");
2833 if (mov->mode == MODE_3GP) {
2834 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2835 minor = has_h264 ? 0x100 : 0x200;
2836 } else if (mov->mode & MODE_3G2) {
2837 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2838 minor = has_h264 ? 0x20000 : 0x10000;
2839 } else if (mov->mode == MODE_PSP)
2840 ffio_wfourcc(pb, "MSNV");
2841 else if (mov->mode == MODE_MP4)
2842 ffio_wfourcc(pb, "isom");
2843 else if (mov->mode == MODE_IPOD)
2844 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2845 else if (mov->mode == MODE_ISM)
2846 ffio_wfourcc(pb, "isml");
2847 else if (mov->mode == MODE_F4V)
2848 ffio_wfourcc(pb, "f4v ");
2850 ffio_wfourcc(pb, "qt ");
2852 avio_wb32(pb, minor);
2854 if (mov->mode == MODE_MOV)
2855 ffio_wfourcc(pb, "qt ");
2856 else if (mov->mode == MODE_ISM) {
2857 ffio_wfourcc(pb, "piff");
2858 ffio_wfourcc(pb, "iso2");
2860 ffio_wfourcc(pb, "isom");
2861 ffio_wfourcc(pb, "iso2");
2863 ffio_wfourcc(pb, "avc1");
2866 if (mov->mode == MODE_3GP)
2867 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2868 else if (mov->mode & MODE_3G2)
2869 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2870 else if (mov->mode == MODE_PSP)
2871 ffio_wfourcc(pb, "MSNV");
2872 else if (mov->mode == MODE_MP4)
2873 ffio_wfourcc(pb, "mp41");
2874 return update_size(pb, pos);
2877 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2879 AVCodecContext *video_codec = s->streams[0]->codec;
2880 AVCodecContext *audio_codec = s->streams[1]->codec;
2881 int audio_rate = audio_codec->sample_rate;
2882 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
2883 int audio_kbitrate = audio_codec->bit_rate / 1000;
2884 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2886 avio_wb32(pb, 0x94); /* size */
2887 ffio_wfourcc(pb, "uuid");
2888 ffio_wfourcc(pb, "PROF");
2890 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2891 avio_wb32(pb, 0xbb88695c);
2892 avio_wb32(pb, 0xfac9c740);
2894 avio_wb32(pb, 0x0); /* ? */
2895 avio_wb32(pb, 0x3); /* 3 sections ? */
2897 avio_wb32(pb, 0x14); /* size */
2898 ffio_wfourcc(pb, "FPRF");
2899 avio_wb32(pb, 0x0); /* ? */
2900 avio_wb32(pb, 0x0); /* ? */
2901 avio_wb32(pb, 0x0); /* ? */
2903 avio_wb32(pb, 0x2c); /* size */
2904 ffio_wfourcc(pb, "APRF"); /* audio */
2906 avio_wb32(pb, 0x2); /* TrackID */
2907 ffio_wfourcc(pb, "mp4a");
2908 avio_wb32(pb, 0x20f);
2910 avio_wb32(pb, audio_kbitrate);
2911 avio_wb32(pb, audio_kbitrate);
2912 avio_wb32(pb, audio_rate);
2913 avio_wb32(pb, audio_codec->channels);
2915 avio_wb32(pb, 0x34); /* size */
2916 ffio_wfourcc(pb, "VPRF"); /* video */
2918 avio_wb32(pb, 0x1); /* TrackID */
2919 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2920 ffio_wfourcc(pb, "avc1");
2921 avio_wb16(pb, 0x014D);
2922 avio_wb16(pb, 0x0015);
2924 ffio_wfourcc(pb, "mp4v");
2925 avio_wb16(pb, 0x0000);
2926 avio_wb16(pb, 0x0103);
2929 avio_wb32(pb, video_kbitrate);
2930 avio_wb32(pb, video_kbitrate);
2931 avio_wb32(pb, frame_rate);
2932 avio_wb32(pb, frame_rate);
2933 avio_wb16(pb, video_codec->width);
2934 avio_wb16(pb, video_codec->height);
2935 avio_wb32(pb, 0x010001); /* ? */
2938 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2941 int i, closed_gop = 0;
2943 for (i = 0; i < pkt->size - 4; i++) {
2944 c = (c << 8) + pkt->data[i];
2945 if (c == 0x1b8) { // gop
2946 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2947 } else if (c == 0x100) { // pic
2948 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2949 if (!temp_ref || closed_gop) // I picture is not reordered
2950 *flags = MOV_SYNC_SAMPLE;
2952 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2959 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2961 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2962 int seq = 0, entry = 0;
2963 int key = pkt->flags & AV_PKT_FLAG_KEY;
2964 start = find_next_marker(pkt->data, end);
2965 for (next = start; next < end; start = next) {
2966 next = find_next_marker(start + 4, end);
2967 switch (AV_RB32(start)) {
2968 case VC1_CODE_SEQHDR:
2971 case VC1_CODE_ENTRYPOINT:
2974 case VC1_CODE_SLICE:
2975 trk->vc1_info.slices = 1;
2979 if (!trk->entry && !fragment) {
2980 /* First packet in first fragment */
2981 trk->vc1_info.first_packet_seq = seq;
2982 trk->vc1_info.first_packet_entry = entry;
2983 } else if ((seq && !trk->vc1_info.packet_seq) ||
2984 (entry && !trk->vc1_info.packet_entry)) {
2986 for (i = 0; i < trk->entry; i++)
2987 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2988 trk->has_keyframes = 0;
2990 trk->vc1_info.packet_seq = 1;
2992 trk->vc1_info.packet_entry = 1;
2994 /* First fragment */
2995 if ((!seq || trk->vc1_info.first_packet_seq) &&
2996 (!entry || trk->vc1_info.first_packet_entry)) {
2997 /* First packet had the same headers as this one, readd the
2998 * sync sample flag. */
2999 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3000 trk->has_keyframes = 1;
3004 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3006 else if (trk->vc1_info.packet_seq)
3008 else if (trk->vc1_info.packet_entry)
3011 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3012 trk->has_keyframes++;
3016 static int mov_flush_fragment(AVFormatContext *s)
3018 MOVMuxContext *mov = s->priv_data;
3019 int i, first_track = -1;
3020 int64_t mdat_size = 0;
3022 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3025 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3026 int64_t pos = avio_tell(s->pb);
3028 int buf_size, moov_size;
3030 for (i = 0; i < mov->nb_streams; i++)
3031 if (!mov->tracks[i].entry)
3033 /* Don't write the initial moov unless all tracks have data */
3034 if (i < mov->nb_streams)
3037 moov_size = get_moov_size(s);
3038 for (i = 0; i < mov->nb_streams; i++)
3039 mov->tracks[i].data_offset = pos + moov_size + 8;
3041 mov_write_moov_tag(s->pb, mov, s);
3043 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3044 mov->mdat_buf = NULL;
3045 avio_wb32(s->pb, buf_size + 8);
3046 ffio_wfourcc(s->pb, "mdat");
3047 avio_write(s->pb, buf, buf_size);
3052 for (i = 0; i < mov->nb_streams; i++) {
3053 if (mov->tracks[i].entry)
3054 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3055 mov->tracks[i].track_duration -
3056 mov->tracks[i].cluster[0].dts;
3057 mov->tracks[i].entry = 0;
3063 for (i = 0; i < mov->nb_streams; i++) {
3064 MOVTrack *track = &mov->tracks[i];
3065 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3066 track->data_offset = 0;
3068 track->data_offset = mdat_size;
3069 if (!track->mdat_buf)
3071 mdat_size += avio_tell(track->mdat_buf);
3072 if (first_track < 0)
3079 for (i = 0; i < mov->nb_streams; i++) {
3080 MOVTrack *track = &mov->tracks[i];
3081 int buf_size, write_moof = 1, moof_tracks = -1;
3083 int64_t duration = 0;
3086 duration = track->start_dts + track->track_duration -
3087 track->cluster[0].dts;
3088 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3089 if (!track->mdat_buf)
3091 mdat_size = avio_tell(track->mdat_buf);
3094 write_moof = i == first_track;
3098 MOVFragmentInfo *info;
3100 track->nb_frag_info++;
3101 if (track->nb_frag_info >= track->frag_info_capacity) {
3102 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3103 if (av_reallocp_array(&track->frag_info,
3105 sizeof(*track->frag_info)))
3106 return AVERROR(ENOMEM);
3107 track->frag_info_capacity = new_capacity;
3109 info = &track->frag_info[track->nb_frag_info - 1];
3110 info->offset = avio_tell(s->pb);
3111 info->time = mov->tracks[i].frag_start;
3112 info->duration = duration;
3113 mov_write_tfrf_tags(s->pb, mov, track);
3115 mov_write_moof_tag(s->pb, mov, moof_tracks);
3116 info->tfrf_offset = track->tfrf_offset;
3119 avio_wb32(s->pb, mdat_size + 8);
3120 ffio_wfourcc(s->pb, "mdat");
3124 track->frag_start += duration;
3126 if (!track->mdat_buf)
3128 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3129 track->mdat_buf = NULL;
3131 avio_write(s->pb, buf, buf_size);
3141 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3143 MOVMuxContext *mov = s->priv_data;
3144 AVIOContext *pb = s->pb;
3145 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3146 AVCodecContext *enc = trk->enc;
3147 unsigned int samples_in_chunk = 0;
3148 int size = pkt->size;
3149 uint8_t *reformatted_data = NULL;
3151 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3153 if (mov->fragments > 0) {
3154 if (!trk->mdat_buf) {
3155 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3160 if (!mov->mdat_buf) {
3161 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3168 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3169 /* We must find out how many AMR blocks there are in one packet */
3170 static uint16_t packed_size[16] =
3171 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3174 while (len < size && samples_in_chunk < 100) {
3175 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3178 if (samples_in_chunk > 1) {
3179 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3182 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3183 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3184 samples_in_chunk = enc->frame_size;
3185 } else if (trk->sample_size)
3186 samples_in_chunk = size / trk->sample_size;
3188 samples_in_chunk = 1;
3190 /* copy extradata if it exists */
3191 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3192 trk->vos_len = enc->extradata_size;
3193 trk->vos_data = av_malloc(trk->vos_len);
3194 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3197 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3198 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3199 if (!s->streams[pkt->stream_index]->nb_frames) {
3200 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3201 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3202 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3205 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3207 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3208 /* from x264 or from bytestream h264 */
3209 /* nal reformating needed */
3210 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3211 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3213 avio_write(pb, reformatted_data, size);
3215 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3218 avio_write(pb, pkt->data, size);
3221 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3222 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3223 /* copy frame to create needed atoms */
3224 trk->vos_len = size;
3225 trk->vos_data = av_malloc(size);
3227 return AVERROR(ENOMEM);
3228 memcpy(trk->vos_data, pkt->data, size);
3231 if (trk->entry >= trk->cluster_capacity) {
3232 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3233 if (av_reallocp_array(&trk->cluster, new_capacity,
3234 sizeof(*trk->cluster)))
3235 return AVERROR(ENOMEM);
3236 trk->cluster_capacity = new_capacity;
3239 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3240 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3241 trk->cluster[trk->entry].chunkNum = 0;
3242 trk->cluster[trk->entry].size = size;
3243 trk->cluster[trk->entry].entries = samples_in_chunk;
3244 trk->cluster[trk->entry].dts = pkt->dts;
3245 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3246 /* First packet of a new fragment. We already wrote the duration
3247 * of the last packet of the previous fragment based on track_duration,
3248 * which might not exactly match our dts. Therefore adjust the dts
3249 * of this packet to be what the previous packets duration implies. */
3250 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3252 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3253 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3255 if (trk->start_dts == AV_NOPTS_VALUE)
3256 trk->start_dts = pkt->dts;
3257 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3258 trk->last_sample_is_subtitle_end = 0;
3260 if (pkt->pts == AV_NOPTS_VALUE) {
3261 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3262 pkt->pts = pkt->dts;
3264 if (pkt->dts != pkt->pts)
3265 trk->flags |= MOV_TRACK_CTTS;
3266 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3267 trk->cluster[trk->entry].flags = 0;
3268 if (enc->codec_id == AV_CODEC_ID_VC1) {
3269 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3270 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3271 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3272 trk->entry > 0) { // force sync sample for the first key frame
3273 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3274 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3275 trk->flags |= MOV_TRACK_STPS;
3277 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3279 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3280 trk->has_keyframes++;
3283 trk->sample_count += samples_in_chunk;
3284 mov->mdat_size += size;
3286 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3287 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3288 reformatted_data, size);
3289 av_free(reformatted_data);
3293 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3295 MOVMuxContext *mov = s->priv_data;
3296 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3297 AVCodecContext *enc = trk->enc;
3298 int64_t frag_duration = 0;
3299 int size = pkt->size;
3302 return 0; /* Discard 0 sized packets */
3304 if (trk->entry && pkt->stream_index < s->nb_streams)
3305 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3306 s->streams[pkt->stream_index]->time_base,
3308 if ((mov->max_fragment_duration &&
3309 frag_duration >= mov->max_fragment_duration) ||
3310 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3311 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3312 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3313 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3314 if (frag_duration >= mov->min_fragment_duration)
3315 mov_flush_fragment(s);
3318 return ff_mov_write_packet(s, pkt);
3321 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3325 uint8_t data[2] = {0};
3328 av_init_packet(&end);
3329 end.size = sizeof(data);
3334 end.stream_index = stream_index;
3336 ret = mov_write_single_packet(s, &end);
3337 av_free_packet(&end);
3342 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3345 mov_flush_fragment(s);
3349 MOVMuxContext *mov = s->priv_data;
3351 if (!pkt->size) return 0; /* Discard 0 sized packets */
3354 * Subtitles require special handling.
3356 * 1) For full complaince, every track must have a sample at
3357 * dts == 0, which is rarely true for subtitles. So, as soon
3358 * as we see any packet with dts > 0, write an empty subtitle
3359 * at dts == 0 for any subtitle track with no samples in it.
3361 * 2) For each subtitle track, check if the current packet's
3362 * dts is past the duration of the last subtitle sample. If
3363 * so, we now need to write an end sample for that subtitle.
3365 * This must be done conditionally to allow for subtitles that
3366 * immediately replace each other, in which case an end sample
3367 * is not needed, and is, in fact, actively harmful.
3369 * 3) See mov_write_trailer for how the final end sample is
3372 for (i = 0; i < mov->nb_streams; i++) {
3373 MOVTrack *trk = &mov->tracks[i];
3376 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3377 trk->track_duration < pkt->dts &&
3378 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3379 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3380 if (ret < 0) return ret;
3381 trk->last_sample_is_subtitle_end = 1;
3385 return mov_write_single_packet(s, pkt);
3389 // QuickTime chapters involve an additional text track with the chapter names
3390 // as samples, and a tref pointing from the other tracks to the chapter one.
3391 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3395 MOVMuxContext *mov = s->priv_data;
3396 MOVTrack *track = &mov->tracks[tracknum];
3397 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3400 track->mode = mov->mode;
3401 track->tag = MKTAG('t','e','x','t');
3402 track->timescale = MOV_TIMESCALE;
3403 track->enc = avcodec_alloc_context3(NULL);
3405 return AVERROR(ENOMEM);
3406 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3408 // These properties are required to make QT recognize the chapter track
3409 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3410 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3411 if (track->enc->extradata == NULL)
3412 return AVERROR(ENOMEM);
3413 track->enc->extradata_size = sizeof(chapter_properties);
3414 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3416 if (avio_open_dyn_buf(&pb) >= 0) {
3420 /* Stub header (usually for Quicktime chapter track) */
3422 avio_wb32(pb, 0x01); // displayFlags
3423 avio_w8(pb, 0x00); // horizontal justification
3424 avio_w8(pb, 0x00); // vertical justification
3425 avio_w8(pb, 0x00); // bgColourRed
3426 avio_w8(pb, 0x00); // bgColourGreen
3427 avio_w8(pb, 0x00); // bgColourBlue
3428 avio_w8(pb, 0x00); // bgColourAlpha
3430 avio_wb16(pb, 0x00); // defTextBoxTop
3431 avio_wb16(pb, 0x00); // defTextBoxLeft
3432 avio_wb16(pb, 0x00); // defTextBoxBottom
3433 avio_wb16(pb, 0x00); // defTextBoxRight
3435 avio_wb16(pb, 0x00); // startChar
3436 avio_wb16(pb, 0x00); // endChar
3437 avio_wb16(pb, 0x01); // fontID
3438 avio_w8(pb, 0x00); // fontStyleFlags
3439 avio_w8(pb, 0x00); // fontSize
3440 avio_w8(pb, 0x00); // fgColourRed
3441 avio_w8(pb, 0x00); // fgColourGreen
3442 avio_w8(pb, 0x00); // fgColourBlue
3443 avio_w8(pb, 0x00); // fgColourAlpha
3445 avio_wb32(pb, 0x0D); // box size
3446 ffio_wfourcc(pb, "ftab"); // box atom name
3447 avio_wb16(pb, 0x01); // entry count
3449 avio_wb16(pb, 0x01); // font ID
3450 avio_w8(pb, 0x00); // font name length
3452 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3453 track->enc->extradata = buf;
3454 track->enc->extradata_size = size;
3461 for (i = 0; i < s->nb_chapters; i++) {
3462 AVChapter *c = s->chapters[i];
3463 AVDictionaryEntry *t;
3465 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3466 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3467 pkt.duration = end - pkt.dts;
3469 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3470 len = strlen(t->value);
3472 pkt.data = av_malloc(pkt.size);
3474 return AVERROR(ENOMEM);
3475 AV_WB16(pkt.data, len);
3476 memcpy(pkt.data + 2, t->value, len);
3477 ff_mov_write_packet(s, &pkt);
3478 av_freep(&pkt.data);
3485 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3488 MOVMuxContext *mov = s->priv_data;
3489 MOVTrack *track = &mov->tracks[index];
3490 AVStream *src_st = s->streams[src_index];
3492 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3493 AVRational rate = {src_st->codec->time_base.den, src_st->codec->time_base.num};
3495 /* if the codec time base makes no sense, try to fallback on stream frame rate */
3496 if (av_timecode_check_frame_rate(rate) < 0) {
3497 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
3498 rate.num, rate.den, src_st->avg_frame_rate.num, src_st->avg_frame_rate.den);
3499 rate = src_st->avg_frame_rate;
3502 /* compute the frame number */
3503 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3507 /* tmcd track based on video stream */
3508 track->mode = mov->mode;
3509 track->tag = MKTAG('t','m','c','d');
3510 track->src_track = src_index;
3511 track->timescale = mov->tracks[src_index].timescale;
3512 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3513 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3515 /* encode context: tmcd data stream */
3516 track->enc = avcodec_alloc_context3(NULL);
3517 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3518 track->enc->codec_tag = track->tag;
3519 track->enc->time_base = av_inv_q(rate);
3521 /* the tmcd track just contains one packet with the frame number */
3522 pkt.data = av_malloc(pkt.size);
3523 AV_WB32(pkt.data, tc.start);
3524 ret = ff_mov_write_packet(s, &pkt);
3530 * st->disposition controls the "enabled" flag in the tkhd tag.
3531 * QuickTime will not play a track if it is not enabled. So make sure
3532 * that one track of each type (audio, video, subtitle) is enabled.
3534 * Subtitles are special. For audio and video, setting "enabled" also
3535 * makes the track "default" (i.e. it is rendered when played). For
3536 * subtitles, an "enabled" subtitle is not rendered by default, but
3537 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3540 static void enable_tracks(AVFormatContext *s)
3542 MOVMuxContext *mov = s->priv_data;
3544 uint8_t enabled[AVMEDIA_TYPE_NB];
3545 int first[AVMEDIA_TYPE_NB];
3547 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3552 for (i = 0; i < s->nb_streams; i++) {
3553 AVStream *st = s->streams[i];
3555 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3556 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3559 if (first[st->codec->codec_type] < 0)
3560 first[st->codec->codec_type] = i;
3561 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3562 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3563 enabled[st->codec->codec_type] = 1;
3567 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3569 case AVMEDIA_TYPE_VIDEO:
3570 case AVMEDIA_TYPE_AUDIO:
3571 case AVMEDIA_TYPE_SUBTITLE:
3572 if (!enabled[i] && first[i] >= 0)
3573 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3579 static void mov_free(AVFormatContext *s)
3581 MOVMuxContext *mov = s->priv_data;
3584 if (mov->chapter_track) {
3585 if (mov->tracks[mov->chapter_track].enc)
3586 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3587 av_freep(&mov->tracks[mov->chapter_track].enc);
3590 for (i = 0; i < mov->nb_streams; i++) {
3591 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3592 ff_mov_close_hinting(&mov->tracks[i]);
3593 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3594 av_freep(&mov->tracks[i].enc);
3595 av_freep(&mov->tracks[i].cluster);
3596 av_freep(&mov->tracks[i].frag_info);
3598 if (mov->tracks[i].vos_len)
3599 av_freep(&mov->tracks[i].vos_data);
3602 av_freep(&mov->tracks);
3605 static int mov_write_header(AVFormatContext *s)
3607 AVIOContext *pb = s->pb;
3608 MOVMuxContext *mov = s->priv_data;
3609 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3610 int i, hint_track = 0, tmcd_track = 0;
3612 /* Default mode == MP4 */
3613 mov->mode = MODE_MP4;
3615 if (s->oformat != NULL) {
3616 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3617 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3618 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3619 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3620 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3621 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3622 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3625 /* Set the FRAGMENT flag if any of the fragmentation methods are
3627 if (mov->max_fragment_duration || mov->max_fragment_size ||
3628 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3629 FF_MOV_FLAG_FRAG_KEYFRAME |
3630 FF_MOV_FLAG_FRAG_CUSTOM))
3631 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3633 /* Set other implicit flags immediately */
3634 if (mov->mode == MODE_ISM)
3635 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3636 FF_MOV_FLAG_FRAGMENT;
3638 /* faststart: moov at the beginning of the file, if supported */
3639 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3640 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3641 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3642 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3643 "with fragmentation and custom IO, disabling faststart\n");
3644 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3646 mov->reserved_moov_size = -1;
3649 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3650 s->avoid_negative_ts = 1;
3653 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3654 * is enabled, we don't support non-seekable output at all. */
3655 if (!s->pb->seekable &&
3656 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3657 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3658 return AVERROR(EINVAL);
3661 mov_write_ftyp_tag(pb,s);
3662 if (mov->mode == MODE_PSP) {
3663 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3664 for (i = 0; i < s->nb_streams; i++) {
3665 AVStream *st = s->streams[i];
3666 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3668 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3674 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3675 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3676 return AVERROR(EINVAL);
3678 mov_write_uuidprof_tag(pb, s);
3681 mov->nb_streams = s->nb_streams;
3682 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3683 mov->chapter_track = mov->nb_streams++;
3685 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3686 /* Add hint tracks for each audio and video stream */
3687 hint_track = mov->nb_streams;
3688 for (i = 0; i < s->nb_streams; i++) {
3689 AVStream *st = s->streams[i];
3690 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3691 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3697 if (mov->mode == MODE_MOV) {
3698 tmcd_track = mov->nb_streams;
3700 /* +1 tmcd track for each video stream with a timecode */
3701 for (i = 0; i < s->nb_streams; i++) {
3702 AVStream *st = s->streams[i];
3703 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3704 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3705 mov->nb_meta_tmcd++;
3708 /* check if there is already a tmcd track to remux */
3709 if (mov->nb_meta_tmcd) {
3710 for (i = 0; i < s->nb_streams; i++) {
3711 AVStream *st = s->streams[i];
3712 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3713 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3714 "so timecode metadata are now ignored\n");
3715 mov->nb_meta_tmcd = 0;
3720 mov->nb_streams += mov->nb_meta_tmcd;
3723 // Reserve an extra stream for chapters for the case where chapters
3724 // are written in the trailer
3725 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3727 return AVERROR(ENOMEM);
3729 for (i = 0; i < s->nb_streams; i++) {
3730 AVStream *st= s->streams[i];
3731 MOVTrack *track= &mov->tracks[i];
3732 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3734 track->enc = st->codec;
3735 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3736 if (track->language < 0)
3737 track->language = 0;
3738 track->mode = mov->mode;
3739 track->tag = mov_find_codec_tag(s, track);
3741 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3742 "codec not currently supported in container\n", i);
3745 /* If hinting of this track is enabled by a later hint track,
3746 * this is updated. */
3747 track->hint_track = -1;
3748 track->start_dts = AV_NOPTS_VALUE;
3749 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3750 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3751 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3752 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3753 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3754 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3757 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3759 if (mov->video_track_timescale) {
3760 track->timescale = mov->video_track_timescale;
3762 track->timescale = st->codec->time_base.den;
3763 while(track->timescale < 10000)
3764 track->timescale *= 2;
3766 if (track->mode == MODE_MOV && track->timescale > 100000)
3767 av_log(s, AV_LOG_WARNING,
3768 "WARNING codec timebase is very high. If duration is too long,\n"
3769 "file may not be playable by quicktime. Specify a shorter timebase\n"
3770 "or choose different container.\n");
3771 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3772 track->timescale = st->codec->sample_rate;
3773 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
3774 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
3775 track->audio_vbr = 1;
3776 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
3777 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
3778 st->codec->codec_id == AV_CODEC_ID_ILBC){
3779 if (!st->codec->block_align) {
3780 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
3783 track->sample_size = st->codec->block_align;
3784 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
3785 track->audio_vbr = 1;
3787 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
3789 if (st->codec->codec_id == AV_CODEC_ID_ILBC) {
3790 track->audio_vbr = 1;
3792 if (track->mode != MODE_MOV &&
3793 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3794 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3795 i, track->enc->sample_rate);
3798 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3799 track->timescale = st->codec->time_base.den;
3800 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3801 track->timescale = st->codec->time_base.den;
3803 track->timescale = MOV_TIMESCALE;
3806 track->height = st->codec->height;
3807 /* The ism specific timescale isn't mandatory, but is assumed by
3808 * some tools, such as mp4split. */
3809 if (mov->mode == MODE_ISM)
3810 track->timescale = 10000000;
3812 avpriv_set_pts_info(st, 64, 1, track->timescale);
3814 /* copy extradata if it exists */
3815 if (st->codec->extradata_size) {
3816 track->vos_len = st->codec->extradata_size;
3817 track->vos_data = av_malloc(track->vos_len);
3818 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3824 if (mov->mode == MODE_ISM) {
3825 /* If no fragmentation options have been set, set a default. */
3826 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3827 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3828 !mov->max_fragment_duration && !mov->max_fragment_size)
3829 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3832 if (mov->reserved_moov_size){
3833 mov->reserved_moov_pos= avio_tell(pb);
3834 if (mov->reserved_moov_size > 0)
3835 avio_skip(pb, mov->reserved_moov_size);
3838 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3839 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3840 mov->reserved_moov_pos = avio_tell(pb);
3841 mov_write_mdat_tag(pb, mov);
3844 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3845 mov->time = ff_iso8601_to_unix_time(t->value);
3847 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3849 if (mov->chapter_track)
3850 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3853 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3854 /* Initialize the hint tracks for each audio and video stream */
3855 for (i = 0; i < s->nb_streams; i++) {
3856 AVStream *st = s->streams[i];
3857 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3858 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3859 if (ff_mov_init_hinting(s, hint_track, i) < 0)
3866 if (mov->nb_meta_tmcd) {
3867 /* Initialize the tmcd tracks */
3868 for (i = 0; i < s->nb_streams; i++) {
3869 AVStream *st = s->streams[i];
3872 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3874 t = av_dict_get(st->metadata, "timecode", NULL, 0);
3877 if (mov_create_timecode_track(s, tmcd_track, i, t->value) < 0)
3886 if (mov->flags & FF_MOV_FLAG_ISML)
3887 mov_write_isml_manifest(pb, mov);
3889 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3890 mov_write_moov_tag(pb, mov, s);
3900 static int get_moov_size(AVFormatContext *s)
3903 AVIOContext *moov_buf;
3904 MOVMuxContext *mov = s->priv_data;
3906 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3908 mov_write_moov_tag(moov_buf, mov, s);
3909 return ffio_close_null_buf(moov_buf);
3913 * This function gets the moov size if moved to the top of the file: the chunk
3914 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3915 * entries) when the moov is moved to the beginning, so the size of the moov
3916 * would change. It also updates the chunk offset tables.
3918 static int compute_moov_size(AVFormatContext *s)
3920 int i, moov_size, moov_size2;
3921 MOVMuxContext *mov = s->priv_data;
3923 moov_size = get_moov_size(s);
3927 for (i = 0; i < mov->nb_streams; i++)
3928 mov->tracks[i].data_offset += moov_size;
3930 moov_size2 = get_moov_size(s);
3934 /* if the size changed, we just switched from stco to co64 and need to
3935 * update the offsets */
3936 if (moov_size2 != moov_size)
3937 for (i = 0; i < mov->nb_streams; i++)
3938 mov->tracks[i].data_offset += moov_size2 - moov_size;
3943 static int shift_data(AVFormatContext *s)
3945 int ret = 0, moov_size;
3946 MOVMuxContext *mov = s->priv_data;
3947 int64_t pos, pos_end = avio_tell(s->pb);
3948 uint8_t *buf, *read_buf[2];
3949 int read_buf_id = 0;
3951 AVIOContext *read_pb;
3953 moov_size = compute_moov_size(s);
3957 buf = av_malloc(moov_size * 2);
3959 return AVERROR(ENOMEM);
3961 read_buf[1] = buf + moov_size;
3963 /* Shift the data: the AVIO context of the output can only be used for
3964 * writing, so we re-open the same output, but for reading. It also avoids
3965 * a read/seek/write/seek back and forth. */
3967 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3969 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3970 "the second pass (faststart)\n", s->filename);
3974 /* mark the end of the shift to up to the last data we wrote, and get ready
3976 pos_end = avio_tell(s->pb);
3977 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3979 /* start reading at where the new moov will be placed */
3980 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3981 pos = avio_tell(read_pb);
3983 #define READ_BLOCK do { \
3984 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3988 /* shift data by chunk of at most moov_size */
3993 n = read_size[read_buf_id];
3996 avio_write(s->pb, read_buf[read_buf_id], n);
3998 } while (pos < pos_end);
3999 avio_close(read_pb);
4006 static int mov_write_trailer(AVFormatContext *s)
4008 MOVMuxContext *mov = s->priv_data;
4009 AVIOContext *pb = s->pb;
4015 * Before actually writing the trailer, make sure that there are no
4016 * dangling subtitles, that need a terminating sample.
4018 for (i = 0; i < mov->nb_streams; i++) {
4019 MOVTrack *trk = &mov->tracks[i];
4020 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4021 !trk->last_sample_is_subtitle_end) {
4022 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4023 trk->last_sample_is_subtitle_end = 1;
4027 // If there were no chapters when the header was written, but there
4028 // are chapters now, write them in the trailer. This only works
4029 // when we are not doing fragments.
4030 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4031 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4032 mov->chapter_track = mov->nb_streams++;
4033 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4038 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4039 moov_pos = avio_tell(pb);
4041 /* Write size of mdat tag */
4042 if (mov->mdat_size + 8 <= UINT32_MAX) {
4043 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4044 avio_wb32(pb, mov->mdat_size + 8);
4046 /* overwrite 'wide' placeholder atom */
4047 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4048 /* special value: real atom size will be 64 bit value after
4051 ffio_wfourcc(pb, "mdat");
4052 avio_wb64(pb, mov->mdat_size + 16);
4054 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4056 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4057 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4058 res = shift_data(s);
4060 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4061 mov_write_moov_tag(pb, mov, s);
4063 } else if (mov->reserved_moov_size > 0) {
4065 mov_write_moov_tag(pb, mov, s);
4066 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4068 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4071 avio_wb32(pb, size);
4072 ffio_wfourcc(pb, "free");
4073 for (i = 0; i < size; i++)
4075 avio_seek(pb, moov_pos, SEEK_SET);
4077 mov_write_moov_tag(pb, mov, s);
4080 mov_flush_fragment(s);
4081 mov_write_mfra_tag(pb, mov);
4084 for (i = 0; i < mov->nb_streams; i++) {
4085 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4086 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4087 int64_t off = avio_tell(pb);
4089 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4090 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4091 avio_write(pb, buf, 7);
4092 avio_seek(pb, off, SEEK_SET);
4103 #if CONFIG_MOV_MUXER
4105 AVOutputFormat ff_mov_muxer = {
4107 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4108 .extensions = "mov",
4109 .priv_data_size = sizeof(MOVMuxContext),
4110 .audio_codec = AV_CODEC_ID_AAC,
4111 .video_codec = CONFIG_LIBX264_ENCODER ?
4112 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4113 .write_header = mov_write_header,
4114 .write_packet = mov_write_packet,
4115 .write_trailer = mov_write_trailer,
4116 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4117 .codec_tag = (const AVCodecTag* const []){
4118 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4120 .priv_class = &mov_muxer_class,
4123 #if CONFIG_TGP_MUXER
4125 AVOutputFormat ff_tgp_muxer = {
4127 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4128 .extensions = "3gp",
4129 .priv_data_size = sizeof(MOVMuxContext),
4130 .audio_codec = AV_CODEC_ID_AMR_NB,
4131 .video_codec = AV_CODEC_ID_H263,
4132 .write_header = mov_write_header,
4133 .write_packet = mov_write_packet,
4134 .write_trailer = mov_write_trailer,
4135 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4136 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4137 .priv_class = &tgp_muxer_class,
4140 #if CONFIG_MP4_MUXER
4142 AVOutputFormat ff_mp4_muxer = {
4144 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4145 .mime_type = "application/mp4",
4146 .extensions = "mp4",
4147 .priv_data_size = sizeof(MOVMuxContext),
4148 .audio_codec = AV_CODEC_ID_AAC,
4149 .video_codec = CONFIG_LIBX264_ENCODER ?
4150 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4151 .write_header = mov_write_header,
4152 .write_packet = mov_write_packet,
4153 .write_trailer = mov_write_trailer,
4154 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4155 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4156 .priv_class = &mp4_muxer_class,
4159 #if CONFIG_PSP_MUXER
4161 AVOutputFormat ff_psp_muxer = {
4163 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4164 .extensions = "mp4,psp",
4165 .priv_data_size = sizeof(MOVMuxContext),
4166 .audio_codec = AV_CODEC_ID_AAC,
4167 .video_codec = CONFIG_LIBX264_ENCODER ?
4168 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4169 .write_header = mov_write_header,
4170 .write_packet = mov_write_packet,
4171 .write_trailer = mov_write_trailer,
4172 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4173 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4174 .priv_class = &psp_muxer_class,
4177 #if CONFIG_TG2_MUXER
4179 AVOutputFormat ff_tg2_muxer = {
4181 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4182 .extensions = "3g2",
4183 .priv_data_size = sizeof(MOVMuxContext),
4184 .audio_codec = AV_CODEC_ID_AMR_NB,
4185 .video_codec = AV_CODEC_ID_H263,
4186 .write_header = mov_write_header,
4187 .write_packet = mov_write_packet,
4188 .write_trailer = mov_write_trailer,
4189 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4190 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4191 .priv_class = &tg2_muxer_class,
4194 #if CONFIG_IPOD_MUXER
4196 AVOutputFormat ff_ipod_muxer = {
4198 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4199 .mime_type = "application/mp4",
4200 .extensions = "m4v,m4a",
4201 .priv_data_size = sizeof(MOVMuxContext),
4202 .audio_codec = AV_CODEC_ID_AAC,
4203 .video_codec = AV_CODEC_ID_H264,
4204 .write_header = mov_write_header,
4205 .write_packet = mov_write_packet,
4206 .write_trailer = mov_write_trailer,
4207 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4208 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4209 .priv_class = &ipod_muxer_class,
4212 #if CONFIG_ISMV_MUXER
4214 AVOutputFormat ff_ismv_muxer = {
4216 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4217 .mime_type = "application/mp4",
4218 .extensions = "ismv,isma",
4219 .priv_data_size = sizeof(MOVMuxContext),
4220 .audio_codec = AV_CODEC_ID_AAC,
4221 .video_codec = AV_CODEC_ID_H264,
4222 .write_header = mov_write_header,
4223 .write_packet = mov_write_packet,
4224 .write_trailer = mov_write_trailer,
4225 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4226 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4227 .priv_class = &ismv_muxer_class,
4230 #if CONFIG_F4V_MUXER
4232 AVOutputFormat ff_f4v_muxer = {
4234 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4235 .mime_type = "application/f4v",
4236 .extensions = "f4v",
4237 .priv_data_size = sizeof(MOVMuxContext),
4238 .audio_codec = AV_CODEC_ID_AAC,
4239 .video_codec = AV_CODEC_ID_H264,
4240 .write_header = mov_write_header,
4241 .write_packet = mov_write_packet,
4242 .write_trailer = mov_write_trailer,
4243 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4244 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4245 .priv_class = &f4v_muxer_class,