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
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
37 #include "libavcodec/raw.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/pixdesc.h"
45 #include "libavutil/timecode.h"
53 static const AVOption options[] = {
54 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "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" },
56 { "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 },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 { "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" },
64 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
66 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
67 { "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},
68 { "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},
69 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72 { "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},
73 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
74 { "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},
75 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
79 #define MOV_CLASS(flavor)\
80 static const AVClass flavor ## _muxer_class = {\
81 .class_name = #flavor " muxer",\
82 .item_name = av_default_item_name,\
84 .version = LIBAVUTIL_VERSION_INT,\
87 static int get_moov_size(AVFormatContext *s);
89 static int utf8len(const uint8_t *b)
94 GET_UTF8(val, *b++, return -1;)
100 //FIXME support 64 bit variant with wide placeholders
101 static int64_t update_size(AVIOContext *pb, int64_t pos)
103 int64_t curpos = avio_tell(pb);
104 avio_seek(pb, pos, SEEK_SET);
105 avio_wb32(pb, curpos - pos); /* rewrite size */
106 avio_seek(pb, curpos, SEEK_SET);
111 static int supports_edts(MOVMuxContext *mov)
113 // EDTS with fragments is tricky as we don't know the duration when its written
114 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
117 static int co64_required(const MOVTrack *track)
119 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
124 /* Chunk offset atom */
125 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
128 int mode64 = co64_required(track); // use 32 bit size variant if possible
129 int64_t pos = avio_tell(pb);
130 avio_wb32(pb, 0); /* size */
132 ffio_wfourcc(pb, "co64");
134 ffio_wfourcc(pb, "stco");
135 avio_wb32(pb, 0); /* version & flags */
136 avio_wb32(pb, track->chunkCount); /* entry count */
137 for (i = 0; i < track->entry; i++) {
138 if (!track->cluster[i].chunkNum)
141 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
143 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
145 return update_size(pb, pos);
148 /* Sample size atom */
149 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
152 int i, j, entries = 0, tst = -1, oldtst = -1;
154 int64_t pos = avio_tell(pb);
155 avio_wb32(pb, 0); /* size */
156 ffio_wfourcc(pb, "stsz");
157 avio_wb32(pb, 0); /* version & flags */
159 for (i = 0; i < track->entry; i++) {
160 tst = track->cluster[i].size / track->cluster[i].entries;
161 if (oldtst != -1 && tst != oldtst)
164 entries += track->cluster[i].entries;
166 if (equalChunks && track->entry) {
167 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
168 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
169 avio_wb32(pb, sSize); // sample size
170 avio_wb32(pb, entries); // sample count
172 avio_wb32(pb, 0); // sample size
173 avio_wb32(pb, entries); // sample count
174 for (i = 0; i < track->entry; i++) {
175 for (j = 0; j < track->cluster[i].entries; j++) {
176 avio_wb32(pb, track->cluster[i].size /
177 track->cluster[i].entries);
181 return update_size(pb, pos);
184 /* Sample to chunk atom */
185 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
187 int index = 0, oldval = -1, i;
188 int64_t entryPos, curpos;
190 int64_t pos = avio_tell(pb);
191 avio_wb32(pb, 0); /* size */
192 ffio_wfourcc(pb, "stsc");
193 avio_wb32(pb, 0); // version & flags
194 entryPos = avio_tell(pb);
195 avio_wb32(pb, track->chunkCount); // entry count
196 for (i = 0; i < track->entry; i++) {
197 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
198 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
199 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
200 avio_wb32(pb, 0x1); // sample description index
201 oldval = track->cluster[i].samples_in_chunk;
205 curpos = avio_tell(pb);
206 avio_seek(pb, entryPos, SEEK_SET);
207 avio_wb32(pb, index); // rewrite size
208 avio_seek(pb, curpos, SEEK_SET);
210 return update_size(pb, pos);
213 /* Sync sample atom */
214 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
216 int64_t curpos, entryPos;
218 int64_t pos = avio_tell(pb);
219 avio_wb32(pb, 0); // size
220 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
221 avio_wb32(pb, 0); // version & flags
222 entryPos = avio_tell(pb);
223 avio_wb32(pb, track->entry); // entry count
224 for (i = 0; i < track->entry; i++) {
225 if (track->cluster[i].flags & flag) {
226 avio_wb32(pb, i + 1);
230 curpos = avio_tell(pb);
231 avio_seek(pb, entryPos, SEEK_SET);
232 avio_wb32(pb, index); // rewrite size
233 avio_seek(pb, curpos, SEEK_SET);
234 return update_size(pb, pos);
237 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
239 avio_wb32(pb, 0x11); /* size */
240 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
241 else ffio_wfourcc(pb, "damr");
242 ffio_wfourcc(pb, "FFMP");
243 avio_w8(pb, 0); /* decoder version */
245 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
246 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
247 avio_w8(pb, 0x01); /* Frames per sample */
251 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
256 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
258 if (track->vos_len < 7)
262 ffio_wfourcc(pb, "dac3");
264 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
265 fscod = get_bits(&gbc, 2);
266 frmsizecod = get_bits(&gbc, 6);
267 bsid = get_bits(&gbc, 5);
268 bsmod = get_bits(&gbc, 3);
269 acmod = get_bits(&gbc, 3);
271 skip_bits(&gbc, 2); // dsurmod
273 if ((acmod & 1) && acmod != 1)
274 skip_bits(&gbc, 2); // cmixlev
276 skip_bits(&gbc, 2); // surmixlev
278 lfeon = get_bits1(&gbc);
280 init_put_bits(&pbc, buf, sizeof(buf));
281 put_bits(&pbc, 2, fscod);
282 put_bits(&pbc, 5, bsid);
283 put_bits(&pbc, 3, bsmod);
284 put_bits(&pbc, 3, acmod);
285 put_bits(&pbc, 1, lfeon);
286 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
287 put_bits(&pbc, 5, 0); // reserved
289 flush_put_bits(&pbc);
290 avio_write(pb, buf, sizeof(buf));
296 * This function writes extradata "as is".
297 * Extradata must be formatted like a valid atom (with size and tag).
299 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
301 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
302 return track->enc->extradata_size;
305 static int mov_write_enda_tag(AVIOContext *pb)
308 ffio_wfourcc(pb, "enda");
309 avio_wb16(pb, 1); /* little endian */
313 static int mov_write_enda_tag_be(AVIOContext *pb)
316 ffio_wfourcc(pb, "enda");
317 avio_wb16(pb, 0); /* big endian */
321 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
326 avio_w8(pb, (size >> (7 * i)) | 0x80);
327 avio_w8(pb, size & 0x7F);
330 static unsigned compute_avg_bitrate(MOVTrack *track)
334 if (!track->track_duration)
336 for (i = 0; i < track->entry; i++)
337 size += track->cluster[i].size;
338 return size * 8 * track->timescale / track->track_duration;
341 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
343 int64_t pos = avio_tell(pb);
344 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
345 unsigned avg_bitrate;
347 avio_wb32(pb, 0); // size
348 ffio_wfourcc(pb, "esds");
349 avio_wb32(pb, 0); // Version
352 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
353 avio_wb16(pb, track->track_id);
354 avio_w8(pb, 0x00); // flags (= no flags)
356 // DecoderConfig descriptor
357 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
359 // Object type indication
360 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
361 track->enc->codec_id == AV_CODEC_ID_MP3) &&
362 track->enc->sample_rate > 24000)
363 avio_w8(pb, 0x6B); // 11172-3
365 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
367 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
368 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
369 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
370 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
371 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
372 avio_w8(pb, 0x15); // flags (= Audiostream)
374 avio_w8(pb, 0x11); // flags (= Visualstream)
376 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
378 avg_bitrate = compute_avg_bitrate(track);
379 // maxbitrate (FIXME should be max rate in any 1 sec window)
380 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
381 avio_wb32(pb, avg_bitrate);
383 if (track->vos_len) {
384 // DecoderSpecific info descriptor
385 put_descr(pb, 0x05, track->vos_len);
386 avio_write(pb, track->vos_data, track->vos_len);
390 put_descr(pb, 0x06, 1);
392 return update_size(pb, pos);
395 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
397 return codec_id == AV_CODEC_ID_PCM_S24LE ||
398 codec_id == AV_CODEC_ID_PCM_S32LE ||
399 codec_id == AV_CODEC_ID_PCM_F32LE ||
400 codec_id == AV_CODEC_ID_PCM_F64LE;
403 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
405 return codec_id == AV_CODEC_ID_PCM_S24BE ||
406 codec_id == AV_CODEC_ID_PCM_S32BE ||
407 codec_id == AV_CODEC_ID_PCM_F32BE ||
408 codec_id == AV_CODEC_ID_PCM_F64BE;
411 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
414 int64_t pos = avio_tell(pb);
416 avio_wl32(pb, track->tag); // store it byteswapped
417 track->enc->codec_tag = av_bswap16(track->tag >> 16);
418 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
420 return update_size(pb, pos);
423 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
426 int64_t pos = avio_tell(pb);
428 ffio_wfourcc(pb, "wfex");
429 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
431 return update_size(pb, pos);
434 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
436 uint32_t layout_tag, bitmap;
437 int64_t pos = avio_tell(pb);
439 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
440 track->enc->channel_layout,
443 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
444 "lack of channel information\n");
448 if (track->multichannel_as_mono)
451 avio_wb32(pb, 0); // Size
452 ffio_wfourcc(pb, "chan"); // Type
453 avio_w8(pb, 0); // Version
454 avio_wb24(pb, 0); // Flags
455 avio_wb32(pb, layout_tag); // mChannelLayoutTag
456 avio_wb32(pb, bitmap); // mChannelBitmap
457 avio_wb32(pb, 0); // mNumberChannelDescriptions
459 return update_size(pb, pos);
462 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
464 int64_t pos = avio_tell(pb);
466 avio_wb32(pb, 0); /* size */
467 ffio_wfourcc(pb, "wave");
469 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
470 avio_wb32(pb, 12); /* size */
471 ffio_wfourcc(pb, "frma");
472 avio_wl32(pb, track->tag);
475 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
476 /* useless atom needed by mplayer, ipod, not needed by quicktime */
477 avio_wb32(pb, 12); /* size */
478 ffio_wfourcc(pb, "mp4a");
480 mov_write_esds_tag(pb, track);
481 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
482 mov_write_enda_tag(pb);
483 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
484 mov_write_enda_tag_be(pb);
485 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
486 mov_write_amr_tag(pb, track);
487 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
488 mov_write_ac3_tag(pb, track);
489 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
490 track->enc->codec_id == AV_CODEC_ID_QDM2) {
491 mov_write_extradata_tag(pb, track);
492 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
493 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
494 mov_write_ms_tag(pb, track);
497 avio_wb32(pb, 8); /* size */
498 avio_wb32(pb, 0); /* null tag */
500 return update_size(pb, pos);
503 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
506 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
507 int unescaped_size, seq_found = 0;
508 int level = 0, interlace = 0;
509 int packet_seq = track->vc1_info.packet_seq;
510 int packet_entry = track->vc1_info.packet_entry;
511 int slices = track->vc1_info.slices;
514 if (track->start_dts == AV_NOPTS_VALUE) {
515 /* No packets written yet, vc1_info isn't authoritative yet. */
516 /* Assume inline sequence and entry headers. This will be
517 * overwritten at the end if the file is seekable. */
518 packet_seq = packet_entry = 1;
521 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
523 return AVERROR(ENOMEM);
524 start = find_next_marker(track->vos_data, end);
525 for (next = start; next < end; start = next) {
528 next = find_next_marker(start + 4, end);
529 size = next - start - 4;
532 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
533 init_get_bits(&gb, unescaped, 8 * unescaped_size);
534 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
535 int profile = get_bits(&gb, 2);
536 if (profile != PROFILE_ADVANCED) {
538 return AVERROR(ENOSYS);
541 level = get_bits(&gb, 3);
542 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
544 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
545 skip_bits(&gb, 1); /* broadcast */
546 interlace = get_bits1(&gb);
547 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
552 return AVERROR(ENOSYS);
555 init_put_bits(&pbc, buf, 7);
556 /* VC1DecSpecStruc */
557 put_bits(&pbc, 4, 12); /* profile - advanced */
558 put_bits(&pbc, 3, level);
559 put_bits(&pbc, 1, 0); /* reserved */
560 /* VC1AdvDecSpecStruc */
561 put_bits(&pbc, 3, level);
562 put_bits(&pbc, 1, 0); /* cbr */
563 put_bits(&pbc, 6, 0); /* reserved */
564 put_bits(&pbc, 1, !interlace); /* no interlace */
565 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
566 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
567 put_bits(&pbc, 1, !slices); /* no slice code */
568 put_bits(&pbc, 1, 0); /* no bframe */
569 put_bits(&pbc, 1, 0); /* reserved */
572 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
573 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
575 put_bits32(&pbc, 0xffffffff);
577 flush_put_bits(&pbc);
584 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
586 uint8_t buf[7] = { 0 };
589 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
592 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
593 ffio_wfourcc(pb, "dvc1");
594 track->vc1_info.struct_offset = avio_tell(pb);
595 avio_write(pb, buf, sizeof(buf));
596 avio_write(pb, track->vos_data, track->vos_len);
601 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
603 avio_wb32(pb, track->vos_len + 8);
604 ffio_wfourcc(pb, "glbl");
605 avio_write(pb, track->vos_data, track->vos_len);
606 return 8 + track->vos_len;
610 * Compute flags for 'lpcm' tag.
611 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
613 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
616 case AV_CODEC_ID_PCM_F32BE:
617 case AV_CODEC_ID_PCM_F64BE:
619 case AV_CODEC_ID_PCM_F32LE:
620 case AV_CODEC_ID_PCM_F64LE:
622 case AV_CODEC_ID_PCM_U8:
624 case AV_CODEC_ID_PCM_S16BE:
625 case AV_CODEC_ID_PCM_S24BE:
626 case AV_CODEC_ID_PCM_S32BE:
628 case AV_CODEC_ID_PCM_S8:
629 case AV_CODEC_ID_PCM_S16LE:
630 case AV_CODEC_ID_PCM_S24LE:
631 case AV_CODEC_ID_PCM_S32LE:
638 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
642 if (cluster_idx >= track->entry)
645 if (cluster_idx + 1 == track->entry)
646 next_dts = track->track_duration + track->start_dts;
648 next_dts = track->cluster[cluster_idx + 1].dts;
650 next_dts -= track->cluster[cluster_idx].dts;
652 av_assert0(next_dts >= 0);
653 av_assert0(next_dts <= INT_MAX);
658 static int get_samples_per_packet(MOVTrack *track)
660 int i, first_duration;
662 // return track->enc->frame_size;
664 /* use 1 for raw PCM */
665 if (!track->audio_vbr)
668 /* check to see if duration is constant for all clusters */
671 first_duration = get_cluster_duration(track, 0);
672 for (i = 1; i < track->entry; i++) {
673 if (get_cluster_duration(track, i) != first_duration)
676 return first_duration;
679 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
681 int64_t pos = avio_tell(pb);
683 uint32_t tag = track->tag;
685 if (track->mode == MODE_MOV) {
686 if (track->timescale > UINT16_MAX) {
687 if (mov_get_lpcm_flags(track->enc->codec_id))
688 tag = AV_RL32("lpcm");
690 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
691 mov_pcm_be_gt16(track->enc->codec_id) ||
692 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
693 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
694 track->enc->codec_id == AV_CODEC_ID_QDM2) {
699 avio_wb32(pb, 0); /* size */
700 avio_wl32(pb, tag); // store it byteswapped
701 avio_wb32(pb, 0); /* Reserved */
702 avio_wb16(pb, 0); /* Reserved */
703 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
705 /* SoundDescription */
706 avio_wb16(pb, version); /* Version */
707 avio_wb16(pb, 0); /* Revision level */
708 avio_wb32(pb, 0); /* Reserved */
713 avio_wb16(pb, 0xfffe);
715 avio_wb32(pb, 0x00010000);
717 avio_wb64(pb, av_double2int(track->enc->sample_rate));
718 avio_wb32(pb, track->enc->channels);
719 avio_wb32(pb, 0x7F000000);
720 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
721 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
722 avio_wb32(pb, track->sample_size);
723 avio_wb32(pb, get_samples_per_packet(track));
725 if (track->mode == MODE_MOV) {
726 avio_wb16(pb, track->enc->channels);
727 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
728 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
729 avio_wb16(pb, 8); /* bits per sample */
732 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
733 } else { /* reserved for mp4/3gp */
739 avio_wb16(pb, 0); /* packet size (= 0) */
740 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
741 track->enc->sample_rate : 0);
742 avio_wb16(pb, 0); /* Reserved */
745 if (version == 1) { /* SoundDescription V1 extended info */
746 if (mov_pcm_le_gt16(track->enc->codec_id) ||
747 mov_pcm_be_gt16(track->enc->codec_id))
748 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
750 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
751 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
752 avio_wb32(pb, track->sample_size); /* Bytes per frame */
753 avio_wb32(pb, 2); /* Bytes per sample */
756 if (track->mode == MODE_MOV &&
757 (track->enc->codec_id == AV_CODEC_ID_AAC ||
758 track->enc->codec_id == AV_CODEC_ID_AC3 ||
759 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
760 track->enc->codec_id == AV_CODEC_ID_ALAC ||
761 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
762 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
763 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
764 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
765 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
766 mov_write_wave_tag(pb, track);
767 else if (track->tag == MKTAG('m','p','4','a'))
768 mov_write_esds_tag(pb, track);
769 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
770 mov_write_amr_tag(pb, track);
771 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
772 mov_write_ac3_tag(pb, track);
773 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
774 mov_write_extradata_tag(pb, track);
775 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
776 mov_write_wfex_tag(pb, track);
777 else if (track->vos_len > 0)
778 mov_write_glbl_tag(pb, track);
780 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
781 mov_write_chan_tag(pb, track);
783 return update_size(pb, pos);
786 static int mov_write_d263_tag(AVIOContext *pb)
788 avio_wb32(pb, 0xf); /* size */
789 ffio_wfourcc(pb, "d263");
790 ffio_wfourcc(pb, "FFMP");
791 avio_w8(pb, 0); /* decoder version */
792 /* FIXME use AVCodecContext level/profile, when encoder will set values */
793 avio_w8(pb, 0xa); /* level */
794 avio_w8(pb, 0); /* profile */
798 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
800 int64_t pos = avio_tell(pb);
803 ffio_wfourcc(pb, "avcC");
804 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
805 return update_size(pb, pos);
808 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
810 int64_t pos = avio_tell(pb);
813 ffio_wfourcc(pb, "hvcC");
814 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
815 return update_size(pb, pos);
818 /* also used by all avid codecs (dv, imx, meridien) and their variants */
819 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
822 avio_wb32(pb, 24); /* size */
823 ffio_wfourcc(pb, "ACLR");
824 ffio_wfourcc(pb, "ACLR");
825 ffio_wfourcc(pb, "0001");
826 if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
827 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
828 } else { /* Full range (0-255) */
829 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
831 avio_wb32(pb, 0); /* unknown */
833 avio_wb32(pb, 24); /* size */
834 ffio_wfourcc(pb, "APRG");
835 ffio_wfourcc(pb, "APRG");
836 ffio_wfourcc(pb, "0001");
837 avio_wb32(pb, 1); /* unknown */
838 avio_wb32(pb, 0); /* unknown */
840 avio_wb32(pb, 120); /* size */
841 ffio_wfourcc(pb, "ARES");
842 ffio_wfourcc(pb, "ARES");
843 ffio_wfourcc(pb, "0001");
844 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
845 avio_wb32(pb, track->enc->width);
846 /* values below are based on samples created with quicktime and avid codecs */
847 if (track->vos_data[5] & 2) { // interlaced
848 avio_wb32(pb, track->enc->height / 2);
849 avio_wb32(pb, 2); /* unknown */
850 avio_wb32(pb, 0); /* unknown */
851 avio_wb32(pb, 4); /* unknown */
853 avio_wb32(pb, track->enc->height);
854 avio_wb32(pb, 1); /* unknown */
855 avio_wb32(pb, 0); /* unknown */
856 if (track->enc->height == 1080)
857 avio_wb32(pb, 5); /* unknown */
859 avio_wb32(pb, 6); /* unknown */
862 for (i = 0; i < 10; i++)
865 /* extra padding for stsd needed */
870 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
872 int tag = track->enc->codec_tag;
874 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
877 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
878 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
879 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
880 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
881 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
882 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
883 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
884 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
885 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
890 static const AVCodecTag codec_ipod_tags[] = {
891 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
892 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
893 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
894 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
895 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
896 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
897 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
898 { AV_CODEC_ID_NONE, 0 },
901 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
903 int tag = track->enc->codec_tag;
905 // keep original tag for subs, ipod supports both formats
906 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
907 (tag == MKTAG('t', 'x', '3', 'g') ||
908 tag == MKTAG('t', 'e', 'x', 't'))))
909 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
911 if (!av_match_ext(s->filename, "m4a") &&
912 !av_match_ext(s->filename, "m4b") &&
913 !av_match_ext(s->filename, "m4v"))
914 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
915 "Quicktime/Ipod might not play the file\n");
920 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
924 if (track->enc->width == 720) { /* SD */
925 if (track->enc->height == 480) { /* NTSC */
926 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
927 else tag = MKTAG('d','v','c',' ');
928 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
929 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
930 else tag = MKTAG('d','v','p','p');
931 } else if (track->enc->height == 720) { /* HD 720 line */
932 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
933 else tag = MKTAG('d','v','h','p');
934 } else if (track->enc->height == 1080) { /* HD 1080 line */
935 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
936 else tag = MKTAG('d','v','h','6');
938 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
945 static AVRational find_fps(AVFormatContext *s, AVStream *st)
947 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
948 /* if the codec time base makes no sense, try to fallback on stream frame rate */
949 if (av_timecode_check_frame_rate(rate) < 0) {
950 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
951 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
952 rate = st->avg_frame_rate;
958 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
960 int tag = track->enc->codec_tag;
961 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
962 AVStream *st = track->st;
963 int rate = av_q2d(find_fps(s, st));
966 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
968 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
969 if (track->enc->width == 1280 && track->enc->height == 720) {
971 if (rate == 24) tag = MKTAG('x','d','v','4');
972 else if (rate == 25) tag = MKTAG('x','d','v','5');
973 else if (rate == 30) tag = MKTAG('x','d','v','1');
974 else if (rate == 50) tag = MKTAG('x','d','v','a');
975 else if (rate == 60) tag = MKTAG('x','d','v','9');
977 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
979 if (rate == 24) tag = MKTAG('x','d','v','6');
980 else if (rate == 25) tag = MKTAG('x','d','v','7');
981 else if (rate == 30) tag = MKTAG('x','d','v','8');
983 if (rate == 25) tag = MKTAG('x','d','v','3');
984 else if (rate == 30) tag = MKTAG('x','d','v','2');
986 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
988 if (rate == 24) tag = MKTAG('x','d','v','d');
989 else if (rate == 25) tag = MKTAG('x','d','v','e');
990 else if (rate == 30) tag = MKTAG('x','d','v','f');
992 if (rate == 25) tag = MKTAG('x','d','v','c');
993 else if (rate == 30) tag = MKTAG('x','d','v','b');
996 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
997 if (track->enc->width == 1280 && track->enc->height == 720) {
999 if (rate == 24) tag = MKTAG('x','d','5','4');
1000 else if (rate == 25) tag = MKTAG('x','d','5','5');
1001 else if (rate == 30) tag = MKTAG('x','d','5','1');
1002 else if (rate == 50) tag = MKTAG('x','d','5','a');
1003 else if (rate == 60) tag = MKTAG('x','d','5','9');
1005 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1007 if (rate == 24) tag = MKTAG('x','d','5','d');
1008 else if (rate == 25) tag = MKTAG('x','d','5','e');
1009 else if (rate == 30) tag = MKTAG('x','d','5','f');
1011 if (rate == 25) tag = MKTAG('x','d','5','c');
1012 else if (rate == 30) tag = MKTAG('x','d','5','b');
1020 static const struct {
1021 enum AVPixelFormat pix_fmt;
1024 } mov_pix_fmt_tags[] = {
1025 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1026 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1027 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1028 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1029 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1030 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1031 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1032 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1033 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1034 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1035 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1036 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1037 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1038 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1039 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1042 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1044 int tag = track->enc->codec_tag;
1046 enum AVPixelFormat pix_fmt;
1048 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1049 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1050 tag = mov_pix_fmt_tags[i].tag;
1051 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1052 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1057 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1058 track->enc->bits_per_coded_sample);
1059 if (tag == MKTAG('r','a','w',' ') &&
1060 track->enc->pix_fmt != pix_fmt &&
1061 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1062 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1063 av_get_pix_fmt_name(track->enc->pix_fmt));
1067 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1069 int tag = track->enc->codec_tag;
1071 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1072 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1073 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1074 track->enc->codec_id == AV_CODEC_ID_H263 ||
1075 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1076 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1077 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1078 tag = mov_get_dv_codec_tag(s, track);
1079 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1080 tag = mov_get_rawvideo_codec_tag(s, track);
1081 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1082 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1083 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1084 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1085 if (!tag) { // if no mac fcc found, try with Microsoft tags
1086 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1088 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1089 "the file may be unplayable!\n");
1091 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1092 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1093 if (!tag) { // if no mac fcc found, try with Microsoft tags
1094 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1096 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1097 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1098 "the file may be unplayable!\n");
1101 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1102 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1108 static const AVCodecTag codec_3gp_tags[] = {
1109 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1110 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1111 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1112 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1113 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1114 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1115 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1116 { AV_CODEC_ID_NONE, 0 },
1119 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1120 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1121 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1122 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1123 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1124 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1125 { AV_CODEC_ID_NONE, 0 },
1128 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1132 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1133 tag = mp4_get_codec_tag(s, track);
1134 else if (track->mode == MODE_ISM) {
1135 tag = mp4_get_codec_tag(s, track);
1136 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1137 tag = MKTAG('w', 'm', 'a', ' ');
1138 } else if (track->mode == MODE_IPOD)
1139 tag = ipod_get_codec_tag(s, track);
1140 else if (track->mode & MODE_3GP)
1141 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1142 else if (track->mode == MODE_F4V)
1143 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1145 tag = mov_get_codec_tag(s, track);
1150 /** Write uuid atom.
1151 * Needed to make file play in iPods running newest firmware
1152 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1154 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1157 ffio_wfourcc(pb, "uuid");
1158 avio_wb32(pb, 0x6b6840f2);
1159 avio_wb32(pb, 0x5f244fc5);
1160 avio_wb32(pb, 0xba39a51b);
1161 avio_wb32(pb, 0xcf0323f3);
1166 static const uint16_t fiel_data[] = {
1167 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1170 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1172 unsigned mov_field_order = 0;
1173 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1174 mov_field_order = fiel_data[track->enc->field_order];
1178 ffio_wfourcc(pb, "fiel");
1179 avio_wb16(pb, mov_field_order);
1183 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1185 int64_t pos = avio_tell(pb);
1186 avio_wb32(pb, 0); /* size */
1187 avio_wl32(pb, track->tag); // store it byteswapped
1188 avio_wb32(pb, 0); /* Reserved */
1189 avio_wb16(pb, 0); /* Reserved */
1190 avio_wb16(pb, 1); /* Data-reference index */
1192 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1193 mov_write_esds_tag(pb, track);
1194 else if (track->enc->extradata_size)
1195 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1197 return update_size(pb, pos);
1200 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1203 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1204 track->enc->sample_aspect_ratio.den, INT_MAX);
1207 ffio_wfourcc(pb, "pasp");
1208 avio_wb32(pb, sar.num);
1209 avio_wb32(pb, sar.den);
1213 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1215 AVDictionaryEntry *encoder;
1216 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1217 || (track->enc->width == 1440 && track->enc->height == 1080)
1218 || (track->enc->width == 1920 && track->enc->height == 1080);
1220 if (track->mode == MODE_MOV &&
1221 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1222 av_strlcpy(compressor_name, encoder->value, 32);
1223 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1224 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1225 AVStream *st = track->st;
1226 int rate = av_q2d(find_fps(NULL, st));
1227 av_strlcatf(compressor_name, len, "XDCAM");
1228 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1229 av_strlcatf(compressor_name, len, " HD422");
1230 } else if(track->enc->width == 1440) {
1231 av_strlcatf(compressor_name, len, " HD");
1233 av_strlcatf(compressor_name, len, " EX");
1235 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1237 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1241 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1243 int64_t pos = avio_tell(pb);
1244 char compressor_name[32] = { 0 };
1246 avio_wb32(pb, 0); /* size */
1247 avio_wl32(pb, track->tag); // store it byteswapped
1248 avio_wb32(pb, 0); /* Reserved */
1249 avio_wb16(pb, 0); /* Reserved */
1250 avio_wb16(pb, 1); /* Data-reference index */
1252 avio_wb16(pb, 0); /* Codec stream version */
1253 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1254 if (track->mode == MODE_MOV) {
1255 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1256 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1257 avio_wb32(pb, 0); /* Temporal Quality */
1258 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1260 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1261 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1264 avio_wb32(pb, 0); /* Reserved */
1265 avio_wb32(pb, 0); /* Reserved */
1266 avio_wb32(pb, 0); /* Reserved */
1268 avio_wb16(pb, track->enc->width); /* Video width */
1269 avio_wb16(pb, track->height); /* Video height */
1270 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1271 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1272 avio_wb32(pb, 0); /* Data size (= 0) */
1273 avio_wb16(pb, 1); /* Frame count (= 1) */
1275 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1276 find_compressor(compressor_name, 32, track);
1277 avio_w8(pb, strlen(compressor_name));
1278 avio_write(pb, compressor_name, 31);
1280 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1281 avio_wb16(pb, track->enc->bits_per_coded_sample);
1283 avio_wb16(pb, 0x18); /* Reserved */
1284 avio_wb16(pb, 0xffff); /* Reserved */
1285 if (track->tag == MKTAG('m','p','4','v'))
1286 mov_write_esds_tag(pb, track);
1287 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1288 mov_write_d263_tag(pb);
1289 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1290 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1291 mov_write_extradata_tag(pb, track);
1293 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1294 mov_write_avid_tag(pb, track);
1295 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1296 mov_write_hvcc_tag(pb, track);
1297 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1298 mov_write_avcc_tag(pb, track);
1299 if (track->mode == MODE_IPOD)
1300 mov_write_uuid_tag_ipod(pb);
1301 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1302 mov_write_dvc1_tag(pb, track);
1303 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1304 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1305 /* Don't write any potential extradata here - the cropping
1306 * is signalled via the normal width/height fields. */
1307 } else if (track->vos_len > 0)
1308 mov_write_glbl_tag(pb, track);
1310 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1311 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1312 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1313 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1314 mov_write_fiel_tag(pb, track);
1316 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1317 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1318 mov_write_pasp_tag(pb, track);
1321 return update_size(pb, pos);
1324 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1326 int64_t pos = avio_tell(pb);
1327 avio_wb32(pb, 0); /* size */
1328 ffio_wfourcc(pb, "rtp ");
1329 avio_wb32(pb, 0); /* Reserved */
1330 avio_wb16(pb, 0); /* Reserved */
1331 avio_wb16(pb, 1); /* Data-reference index */
1333 avio_wb16(pb, 1); /* Hint track version */
1334 avio_wb16(pb, 1); /* Highest compatible version */
1335 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1337 avio_wb32(pb, 12); /* size */
1338 ffio_wfourcc(pb, "tims");
1339 avio_wb32(pb, track->timescale);
1341 return update_size(pb, pos);
1344 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1346 uint64_t str_size =strlen(reel_name);
1347 int64_t pos = avio_tell(pb);
1349 if (str_size >= UINT16_MAX){
1350 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1352 return AVERROR(EINVAL);
1355 avio_wb32(pb, 0); /* size */
1356 ffio_wfourcc(pb, "name"); /* Data format */
1357 avio_wb16(pb, str_size); /* string size */
1358 avio_wb16(pb, track->language); /* langcode */
1359 avio_write(pb, reel_name, str_size); /* reel name */
1360 return update_size(pb,pos);
1363 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1365 int64_t pos = avio_tell(pb);
1367 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1368 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1369 AVDictionaryEntry *t = NULL;
1371 if (nb_frames > 255) {
1372 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1373 return AVERROR(EINVAL);
1376 avio_wb32(pb, 0); /* size */
1377 ffio_wfourcc(pb, "tmcd"); /* Data format */
1378 avio_wb32(pb, 0); /* Reserved */
1379 avio_wb32(pb, 1); /* Data reference index */
1380 avio_wb32(pb, 0); /* Flags */
1381 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1382 avio_wb32(pb, track->timescale); /* Timescale */
1383 avio_wb32(pb, frame_duration); /* Frame duration */
1384 avio_w8(pb, nb_frames); /* Number of frames */
1385 avio_w8(pb, 0); /* Reserved */
1388 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1390 if (t && utf8len(t->value))
1391 mov_write_source_reference_tag(pb, track, t->value);
1393 avio_wb16(pb, 0); /* zero size */
1396 avio_wb32(pb, 0); /* size */
1397 ffio_wfourcc(pb, "tmcd"); /* Data format */
1398 avio_wb32(pb, 0); /* Reserved */
1399 avio_wb32(pb, 1); /* Data reference index */
1400 if (track->enc->extradata_size)
1401 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1403 return update_size(pb, pos);
1406 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1408 int64_t pos = avio_tell(pb);
1409 avio_wb32(pb, 0); /* size */
1410 ffio_wfourcc(pb, "stsd");
1411 avio_wb32(pb, 0); /* version & flags */
1412 avio_wb32(pb, 1); /* entry count */
1413 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1414 mov_write_video_tag(pb, track);
1415 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1416 mov_write_audio_tag(pb, track);
1417 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1418 mov_write_subtitle_tag(pb, track);
1419 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1420 mov_write_rtp_tag(pb, track);
1421 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1422 mov_write_tmcd_tag(pb, track);
1423 return update_size(pb, pos);
1426 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1428 MOVStts *ctts_entries;
1429 uint32_t entries = 0;
1433 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1434 ctts_entries[0].count = 1;
1435 ctts_entries[0].duration = track->cluster[0].cts;
1436 for (i = 1; i < track->entry; i++) {
1437 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1438 ctts_entries[entries].count++; /* compress */
1441 ctts_entries[entries].duration = track->cluster[i].cts;
1442 ctts_entries[entries].count = 1;
1445 entries++; /* last one */
1446 atom_size = 16 + (entries * 8);
1447 avio_wb32(pb, atom_size); /* size */
1448 ffio_wfourcc(pb, "ctts");
1449 avio_wb32(pb, 0); /* version & flags */
1450 avio_wb32(pb, entries); /* entry count */
1451 for (i = 0; i < entries; i++) {
1452 avio_wb32(pb, ctts_entries[i].count);
1453 avio_wb32(pb, ctts_entries[i].duration);
1455 av_free(ctts_entries);
1459 /* Time to sample atom */
1460 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1462 MOVStts *stts_entries;
1463 uint32_t entries = -1;
1467 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1468 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1469 stts_entries[0].count = track->sample_count;
1470 stts_entries[0].duration = 1;
1473 stts_entries = track->entry ?
1474 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1476 for (i = 0; i < track->entry; i++) {
1477 int duration = get_cluster_duration(track, i);
1478 if (i && duration == stts_entries[entries].duration) {
1479 stts_entries[entries].count++; /* compress */
1482 stts_entries[entries].duration = duration;
1483 stts_entries[entries].count = 1;
1486 entries++; /* last one */
1488 atom_size = 16 + (entries * 8);
1489 avio_wb32(pb, atom_size); /* size */
1490 ffio_wfourcc(pb, "stts");
1491 avio_wb32(pb, 0); /* version & flags */
1492 avio_wb32(pb, entries); /* entry count */
1493 for (i = 0; i < entries; i++) {
1494 avio_wb32(pb, stts_entries[i].count);
1495 avio_wb32(pb, stts_entries[i].duration);
1497 av_free(stts_entries);
1501 static int mov_write_dref_tag(AVIOContext *pb)
1503 avio_wb32(pb, 28); /* size */
1504 ffio_wfourcc(pb, "dref");
1505 avio_wb32(pb, 0); /* version & flags */
1506 avio_wb32(pb, 1); /* entry count */
1508 avio_wb32(pb, 0xc); /* size */
1509 //FIXME add the alis and rsrc atom
1510 ffio_wfourcc(pb, "url ");
1511 avio_wb32(pb, 1); /* version & flags */
1516 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1518 int64_t pos = avio_tell(pb);
1519 avio_wb32(pb, 0); /* size */
1520 ffio_wfourcc(pb, "stbl");
1521 mov_write_stsd_tag(pb, track);
1522 mov_write_stts_tag(pb, track);
1523 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1524 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1525 track->has_keyframes && track->has_keyframes < track->entry)
1526 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1527 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1528 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1529 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1530 track->flags & MOV_TRACK_CTTS)
1531 mov_write_ctts_tag(pb, track);
1532 mov_write_stsc_tag(pb, track);
1533 mov_write_stsz_tag(pb, track);
1534 mov_write_stco_tag(pb, track);
1535 return update_size(pb, pos);
1538 static int mov_write_dinf_tag(AVIOContext *pb)
1540 int64_t pos = avio_tell(pb);
1541 avio_wb32(pb, 0); /* size */
1542 ffio_wfourcc(pb, "dinf");
1543 mov_write_dref_tag(pb);
1544 return update_size(pb, pos);
1547 static int mov_write_nmhd_tag(AVIOContext *pb)
1550 ffio_wfourcc(pb, "nmhd");
1555 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1557 int64_t pos = avio_tell(pb);
1558 const char *font = "Lucida Grande";
1559 avio_wb32(pb, 0); /* size */
1560 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1561 avio_wb32(pb, 0); /* version & flags */
1562 avio_wb16(pb, 0); /* text font */
1563 avio_wb16(pb, 0); /* text face */
1564 avio_wb16(pb, 12); /* text size */
1565 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1566 avio_wb16(pb, 0x0000); /* text color (red) */
1567 avio_wb16(pb, 0x0000); /* text color (green) */
1568 avio_wb16(pb, 0x0000); /* text color (blue) */
1569 avio_wb16(pb, 0xffff); /* background color (red) */
1570 avio_wb16(pb, 0xffff); /* background color (green) */
1571 avio_wb16(pb, 0xffff); /* background color (blue) */
1572 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1573 avio_write(pb, font, strlen(font)); /* font name */
1574 return update_size(pb, pos);
1577 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1579 int64_t pos = avio_tell(pb);
1580 avio_wb32(pb, 0); /* size */
1581 ffio_wfourcc(pb, "gmhd");
1582 avio_wb32(pb, 0x18); /* gmin size */
1583 ffio_wfourcc(pb, "gmin");/* generic media info */
1584 avio_wb32(pb, 0); /* version & flags */
1585 avio_wb16(pb, 0x40); /* graphics mode = */
1586 avio_wb16(pb, 0x8000); /* opColor (r?) */
1587 avio_wb16(pb, 0x8000); /* opColor (g?) */
1588 avio_wb16(pb, 0x8000); /* opColor (b?) */
1589 avio_wb16(pb, 0); /* balance */
1590 avio_wb16(pb, 0); /* reserved */
1593 * This special text atom is required for
1594 * Apple Quicktime chapters. The contents
1595 * don't appear to be documented, so the
1596 * bytes are copied verbatim.
1598 if (track->tag != MKTAG('c','6','0','8')) {
1599 avio_wb32(pb, 0x2C); /* size */
1600 ffio_wfourcc(pb, "text");
1601 avio_wb16(pb, 0x01);
1602 avio_wb32(pb, 0x00);
1603 avio_wb32(pb, 0x00);
1604 avio_wb32(pb, 0x00);
1605 avio_wb32(pb, 0x01);
1606 avio_wb32(pb, 0x00);
1607 avio_wb32(pb, 0x00);
1608 avio_wb32(pb, 0x00);
1609 avio_wb32(pb, 0x00004000);
1610 avio_wb16(pb, 0x0000);
1613 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1614 int64_t tmcd_pos = avio_tell(pb);
1615 avio_wb32(pb, 0); /* size */
1616 ffio_wfourcc(pb, "tmcd");
1617 mov_write_tcmi_tag(pb, track);
1618 update_size(pb, tmcd_pos);
1620 return update_size(pb, pos);
1623 static int mov_write_smhd_tag(AVIOContext *pb)
1625 avio_wb32(pb, 16); /* size */
1626 ffio_wfourcc(pb, "smhd");
1627 avio_wb32(pb, 0); /* version & flags */
1628 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1629 avio_wb16(pb, 0); /* reserved */
1633 static int mov_write_vmhd_tag(AVIOContext *pb)
1635 avio_wb32(pb, 0x14); /* size (always 0x14) */
1636 ffio_wfourcc(pb, "vmhd");
1637 avio_wb32(pb, 0x01); /* version & flags */
1638 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1642 static int is_clcp_track(MOVTrack *track)
1644 return track->tag == MKTAG('c','7','0','8') ||
1645 track->tag == MKTAG('c','6','0','8');
1648 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1650 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1651 int64_t pos = avio_tell(pb);
1655 descr = "DataHandler";
1658 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1659 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1661 descr = "VideoHandler";
1662 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1664 descr = "SoundHandler";
1665 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1666 if (is_clcp_track(track)) {
1668 descr = "ClosedCaptionHandler";
1670 if (track->tag == MKTAG('t','x','3','g')) {
1672 } else if (track->tag == MKTAG('m','p','4','s')) {
1677 descr = "SubtitleHandler";
1679 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1681 descr = "HintHandler";
1682 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1684 descr = "TimeCodeHandler";
1687 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1688 track->enc->codec_tag);
1690 av_log(track->enc, AV_LOG_WARNING,
1691 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1692 tag_buf, track->enc->codec_tag);
1695 // hdlr.name is used by some players to identify the content title
1696 // of the track. So if an alternate handler description is
1697 // specified, use it.
1698 AVDictionaryEntry *t;
1699 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1700 if (t && utf8len(t->value))
1705 avio_wb32(pb, 0); /* size */
1706 ffio_wfourcc(pb, "hdlr");
1707 avio_wb32(pb, 0); /* Version & flags */
1708 avio_write(pb, hdlr, 4); /* handler */
1709 ffio_wfourcc(pb, hdlr_type); /* handler type */
1710 avio_wb32(pb, 0); /* reserved */
1711 avio_wb32(pb, 0); /* reserved */
1712 avio_wb32(pb, 0); /* reserved */
1713 if (!track || track->mode == MODE_MOV)
1714 avio_w8(pb, strlen(descr)); /* pascal string */
1715 avio_write(pb, descr, strlen(descr)); /* handler description */
1716 if (track && track->mode != MODE_MOV)
1717 avio_w8(pb, 0); /* c string */
1718 return update_size(pb, pos);
1721 static int mov_write_hmhd_tag(AVIOContext *pb)
1723 /* This atom must be present, but leaving the values at zero
1724 * seems harmless. */
1725 avio_wb32(pb, 28); /* size */
1726 ffio_wfourcc(pb, "hmhd");
1727 avio_wb32(pb, 0); /* version, flags */
1728 avio_wb16(pb, 0); /* maxPDUsize */
1729 avio_wb16(pb, 0); /* avgPDUsize */
1730 avio_wb32(pb, 0); /* maxbitrate */
1731 avio_wb32(pb, 0); /* avgbitrate */
1732 avio_wb32(pb, 0); /* reserved */
1736 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1738 int64_t pos = avio_tell(pb);
1739 avio_wb32(pb, 0); /* size */
1740 ffio_wfourcc(pb, "minf");
1741 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1742 mov_write_vmhd_tag(pb);
1743 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1744 mov_write_smhd_tag(pb);
1745 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1746 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1747 mov_write_gmhd_tag(pb, track);
1749 mov_write_nmhd_tag(pb);
1751 } else if (track->tag == MKTAG('r','t','p',' ')) {
1752 mov_write_hmhd_tag(pb);
1753 } else if (track->tag == MKTAG('t','m','c','d')) {
1754 mov_write_gmhd_tag(pb, track);
1756 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1757 mov_write_hdlr_tag(pb, NULL);
1758 mov_write_dinf_tag(pb);
1759 mov_write_stbl_tag(pb, track);
1760 return update_size(pb, pos);
1763 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1765 int version = track->track_duration < INT32_MAX ? 0 : 1;
1767 if (track->mode == MODE_ISM)
1770 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1771 ffio_wfourcc(pb, "mdhd");
1772 avio_w8(pb, version);
1773 avio_wb24(pb, 0); /* flags */
1775 avio_wb64(pb, track->time);
1776 avio_wb64(pb, track->time);
1778 avio_wb32(pb, track->time); /* creation time */
1779 avio_wb32(pb, track->time); /* modification time */
1781 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1783 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1785 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1786 avio_wb16(pb, track->language); /* language */
1787 avio_wb16(pb, 0); /* reserved (quality) */
1789 if (version != 0 && track->mode == MODE_MOV) {
1790 av_log(NULL, AV_LOG_ERROR,
1791 "FATAL error, file duration too long for timebase, this file will not be\n"
1792 "playable with quicktime. Choose a different timebase or a different\n"
1793 "container format\n");
1799 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1801 int64_t pos = avio_tell(pb);
1802 avio_wb32(pb, 0); /* size */
1803 ffio_wfourcc(pb, "mdia");
1804 mov_write_mdhd_tag(pb, track);
1805 mov_write_hdlr_tag(pb, track);
1806 mov_write_minf_tag(pb, track);
1807 return update_size(pb, pos);
1810 /* transformation matrix
1814 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1815 int16_t d, int16_t tx, int16_t ty)
1817 avio_wb32(pb, a << 16); /* 16.16 format */
1818 avio_wb32(pb, b << 16); /* 16.16 format */
1819 avio_wb32(pb, 0); /* u in 2.30 format */
1820 avio_wb32(pb, c << 16); /* 16.16 format */
1821 avio_wb32(pb, d << 16); /* 16.16 format */
1822 avio_wb32(pb, 0); /* v in 2.30 format */
1823 avio_wb32(pb, tx << 16); /* 16.16 format */
1824 avio_wb32(pb, ty << 16); /* 16.16 format */
1825 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1828 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1829 MOVTrack *track, AVStream *st)
1831 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1832 track->timescale, AV_ROUND_UP);
1833 int version = duration < INT32_MAX ? 0 : 1;
1834 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1840 if (mov->per_stream_grouping)
1843 group = st->codec->codec_type;
1846 if (track->flags & MOV_TRACK_ENABLED)
1847 flags |= MOV_TKHD_FLAG_ENABLED;
1849 if (track->mode == MODE_ISM)
1852 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1853 ffio_wfourcc(pb, "tkhd");
1854 avio_w8(pb, version);
1855 avio_wb24(pb, flags);
1857 avio_wb64(pb, track->time);
1858 avio_wb64(pb, track->time);
1860 avio_wb32(pb, track->time); /* creation time */
1861 avio_wb32(pb, track->time); /* modification time */
1863 avio_wb32(pb, track->track_id); /* track-id */
1864 avio_wb32(pb, 0); /* reserved */
1866 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1868 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1870 avio_wb32(pb, 0); /* reserved */
1871 avio_wb32(pb, 0); /* reserved */
1872 avio_wb16(pb, 0); /* layer */
1873 avio_wb16(pb, group); /* alternate group) */
1874 /* Volume, only for audio */
1875 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1876 avio_wb16(pb, 0x0100);
1879 avio_wb16(pb, 0); /* reserved */
1881 /* Matrix structure */
1882 if (st && st->metadata) {
1883 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1884 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1886 if (rotation == 90) {
1887 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1888 } else if (rotation == 180) {
1889 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1890 } else if (rotation == 270) {
1891 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1893 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1895 /* Track width and height, for visual only */
1896 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1897 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1898 if (track->mode == MODE_MOV) {
1899 avio_wb32(pb, track->enc->width << 16);
1900 avio_wb32(pb, track->height << 16);
1902 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1903 if (!sample_aspect_ratio || track->height != track->enc->height)
1904 sample_aspect_ratio = 1;
1905 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1906 avio_wb32(pb, track->height * 0x10000);
1915 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1917 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1918 track->enc->sample_aspect_ratio.den);
1920 int64_t pos = avio_tell(pb);
1922 avio_wb32(pb, 0); /* size */
1923 ffio_wfourcc(pb, "tapt");
1926 ffio_wfourcc(pb, "clef");
1928 avio_wb32(pb, width << 16);
1929 avio_wb32(pb, track->enc->height << 16);
1932 ffio_wfourcc(pb, "prof");
1934 avio_wb32(pb, width << 16);
1935 avio_wb32(pb, track->enc->height << 16);
1938 ffio_wfourcc(pb, "enof");
1940 avio_wb32(pb, track->enc->width << 16);
1941 avio_wb32(pb, track->enc->height << 16);
1943 return update_size(pb, pos);
1946 // This box seems important for the psp playback ... without it the movie seems to hang
1947 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1949 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1950 track->timescale, AV_ROUND_UP);
1951 int version = duration < INT32_MAX ? 0 : 1;
1952 int entry_size, entry_count, size;
1953 int64_t delay, start_ct = track->cluster[0].cts;
1954 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1955 track->timescale, AV_ROUND_DOWN);
1956 version |= delay < INT32_MAX ? 0 : 1;
1958 entry_size = (version == 1) ? 20 : 12;
1959 entry_count = 1 + (delay > 0);
1960 size = 24 + entry_count * entry_size;
1962 /* write the atom data */
1963 avio_wb32(pb, size);
1964 ffio_wfourcc(pb, "edts");
1965 avio_wb32(pb, size - 8);
1966 ffio_wfourcc(pb, "elst");
1967 avio_w8(pb, version);
1968 avio_wb24(pb, 0); /* flags */
1970 avio_wb32(pb, entry_count);
1971 if (delay > 0) { /* add an empty edit to delay presentation */
1973 avio_wb64(pb, delay);
1976 avio_wb32(pb, delay);
1979 avio_wb32(pb, 0x00010000);
1981 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1982 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1988 avio_wb64(pb, duration);
1989 avio_wb64(pb, start_ct);
1991 avio_wb32(pb, duration);
1992 avio_wb32(pb, start_ct);
1994 avio_wb32(pb, 0x00010000);
1998 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2000 avio_wb32(pb, 20); // size
2001 ffio_wfourcc(pb, "tref");
2002 avio_wb32(pb, 12); // size (subatom)
2003 avio_wl32(pb, track->tref_tag);
2004 avio_wb32(pb, track->tref_id);
2008 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2009 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2011 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2012 ffio_wfourcc(pb, "uuid");
2013 ffio_wfourcc(pb, "USMT");
2014 avio_wb32(pb, 0x21d24fce);
2015 avio_wb32(pb, 0xbb88695c);
2016 avio_wb32(pb, 0xfac9c740);
2017 avio_wb32(pb, 0x1c); // another size here!
2018 ffio_wfourcc(pb, "MTDT");
2019 avio_wb32(pb, 0x00010012);
2020 avio_wb32(pb, 0x0a);
2021 avio_wb32(pb, 0x55c40000);
2027 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2029 AVFormatContext *ctx = track->rtp_ctx;
2030 char buf[1000] = "";
2033 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2034 NULL, NULL, 0, 0, ctx);
2035 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2038 avio_wb32(pb, len + 24);
2039 ffio_wfourcc(pb, "udta");
2040 avio_wb32(pb, len + 16);
2041 ffio_wfourcc(pb, "hnti");
2042 avio_wb32(pb, len + 8);
2043 ffio_wfourcc(pb, "sdp ");
2044 avio_write(pb, buf, len);
2048 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2049 const char *tag, const char *str)
2051 int64_t pos = avio_tell(pb);
2052 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2053 if (!t || !utf8len(t->value))
2056 avio_wb32(pb, 0); /* size */
2057 ffio_wfourcc(pb, tag); /* type */
2058 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2059 return update_size(pb, pos);
2062 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2065 AVIOContext *pb_buf;
2069 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2072 ret = avio_open_dyn_buf(&pb_buf);
2076 if (mov->mode & MODE_MP4)
2077 mov_write_track_metadata(pb_buf, st, "name", "title");
2079 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2080 avio_wb32(pb, size + 8);
2081 ffio_wfourcc(pb, "udta");
2082 avio_write(pb, buf, size);
2089 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2090 MOVTrack *track, AVStream *st)
2092 int64_t pos = avio_tell(pb);
2093 avio_wb32(pb, 0); /* size */
2094 ffio_wfourcc(pb, "trak");
2095 mov_write_tkhd_tag(pb, mov, track, st);
2096 if (supports_edts(mov))
2097 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
2098 if (track->tref_tag)
2099 mov_write_tref_tag(pb, track);
2100 mov_write_mdia_tag(pb, track);
2101 if (track->mode == MODE_PSP)
2102 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2103 if (track->tag == MKTAG('r','t','p',' '))
2104 mov_write_udta_sdp(pb, track);
2105 if (track->mode == MODE_MOV) {
2106 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2107 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2108 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2109 mov_write_tapt_tag(pb, track);
2112 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2113 mov_write_tapt_tag(pb, track);
2116 mov_write_track_udta_tag(pb, mov, st);
2117 return update_size(pb, pos);
2120 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2122 int i, has_audio = 0, has_video = 0;
2123 int64_t pos = avio_tell(pb);
2124 int audio_profile = mov->iods_audio_profile;
2125 int video_profile = mov->iods_video_profile;
2126 for (i = 0; i < mov->nb_streams; i++) {
2127 if (mov->tracks[i].entry > 0) {
2128 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2129 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2132 if (audio_profile < 0)
2133 audio_profile = 0xFF - has_audio;
2134 if (video_profile < 0)
2135 video_profile = 0xFF - has_video;
2136 avio_wb32(pb, 0x0); /* size */
2137 ffio_wfourcc(pb, "iods");
2138 avio_wb32(pb, 0); /* version & flags */
2139 put_descr(pb, 0x10, 7);
2140 avio_wb16(pb, 0x004f);
2143 avio_w8(pb, audio_profile);
2144 avio_w8(pb, video_profile);
2146 return update_size(pb, pos);
2149 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2151 avio_wb32(pb, 0x20); /* size */
2152 ffio_wfourcc(pb, "trex");
2153 avio_wb32(pb, 0); /* version & flags */
2154 avio_wb32(pb, track->track_id); /* track ID */
2155 avio_wb32(pb, 1); /* default sample description index */
2156 avio_wb32(pb, 0); /* default sample duration */
2157 avio_wb32(pb, 0); /* default sample size */
2158 avio_wb32(pb, 0); /* default sample flags */
2162 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2164 int64_t pos = avio_tell(pb);
2166 avio_wb32(pb, 0x0); /* size */
2167 ffio_wfourcc(pb, "mvex");
2168 for (i = 0; i < mov->nb_streams; i++)
2169 mov_write_trex_tag(pb, &mov->tracks[i]);
2170 return update_size(pb, pos);
2173 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2175 int max_track_id = 1, i;
2176 int64_t max_track_len_temp, max_track_len = 0;
2179 for (i = 0; i < mov->nb_streams; i++) {
2180 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2181 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2183 mov->tracks[i].timescale,
2185 if (max_track_len < max_track_len_temp)
2186 max_track_len = max_track_len_temp;
2187 if (max_track_id < mov->tracks[i].track_id)
2188 max_track_id = mov->tracks[i].track_id;
2192 version = max_track_len < UINT32_MAX ? 0 : 1;
2193 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2194 ffio_wfourcc(pb, "mvhd");
2195 avio_w8(pb, version);
2196 avio_wb24(pb, 0); /* flags */
2198 avio_wb64(pb, mov->time);
2199 avio_wb64(pb, mov->time);
2201 avio_wb32(pb, mov->time); /* creation time */
2202 avio_wb32(pb, mov->time); /* modification time */
2204 avio_wb32(pb, MOV_TIMESCALE);
2205 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2207 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2208 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2209 avio_wb16(pb, 0); /* reserved */
2210 avio_wb32(pb, 0); /* reserved */
2211 avio_wb32(pb, 0); /* reserved */
2213 /* Matrix structure */
2214 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2216 avio_wb32(pb, 0); /* reserved (preview time) */
2217 avio_wb32(pb, 0); /* reserved (preview duration) */
2218 avio_wb32(pb, 0); /* reserved (poster time) */
2219 avio_wb32(pb, 0); /* reserved (selection time) */
2220 avio_wb32(pb, 0); /* reserved (selection duration) */
2221 avio_wb32(pb, 0); /* reserved (current time) */
2222 avio_wb32(pb, max_track_id + 1); /* Next track id */
2226 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2229 avio_wb32(pb, 33); /* size */
2230 ffio_wfourcc(pb, "hdlr");
2233 ffio_wfourcc(pb, "mdir");
2234 ffio_wfourcc(pb, "appl");
2241 /* helper function to write a data tag with the specified string as data */
2242 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2245 int size = 16 + strlen(data);
2246 avio_wb32(pb, size); /* size */
2247 ffio_wfourcc(pb, "data");
2250 avio_write(pb, data, strlen(data));
2254 lang = ff_mov_iso639_to_lang("und", 1);
2255 avio_wb16(pb, strlen(data)); /* string length */
2256 avio_wb16(pb, lang);
2257 avio_write(pb, data, strlen(data));
2258 return strlen(data) + 4;
2262 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2263 const char *value, int lang, int long_style)
2266 if (value && value[0]) {
2267 int64_t pos = avio_tell(pb);
2268 avio_wb32(pb, 0); /* size */
2269 ffio_wfourcc(pb, name);
2270 mov_write_string_data_tag(pb, value, lang, long_style);
2271 size = update_size(pb, pos);
2276 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2277 const char *name, const char *tag,
2280 int l, lang = 0, len, len2;
2281 AVDictionaryEntry *t, *t2 = NULL;
2284 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2287 len = strlen(t->key);
2288 snprintf(tag2, sizeof(tag2), "%s-", tag);
2289 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2290 len2 = strlen(t2->key);
2291 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2292 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2297 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2300 /* iTunes bpm number */
2301 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2303 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2304 int size = 0, tmpo = t ? atoi(t->value) : 0;
2307 avio_wb32(pb, size);
2308 ffio_wfourcc(pb, "tmpo");
2309 avio_wb32(pb, size-8); /* size */
2310 ffio_wfourcc(pb, "data");
2311 avio_wb32(pb, 0x15); //type specifier
2313 avio_wb16(pb, tmpo); // data
2318 /* iTunes track or disc number */
2319 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2320 AVFormatContext *s, int disc)
2322 AVDictionaryEntry *t = av_dict_get(s->metadata,
2323 disc ? "disc" : "track",
2325 int size = 0, track = t ? atoi(t->value) : 0;
2328 char *slash = strchr(t->value, '/');
2330 tracks = atoi(slash + 1);
2331 avio_wb32(pb, 32); /* size */
2332 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2333 avio_wb32(pb, 24); /* size */
2334 ffio_wfourcc(pb, "data");
2335 avio_wb32(pb, 0); // 8 bytes empty
2337 avio_wb16(pb, 0); // empty
2338 avio_wb16(pb, track); // track / disc number
2339 avio_wb16(pb, tracks); // total track / disc number
2340 avio_wb16(pb, 0); // empty
2346 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2347 const char *name, const char *tag,
2350 AVDictionaryEntry *t = NULL;
2352 int size = 24 + len;
2354 if (len != 1 && len != 4)
2357 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2359 num = atoi(t->value);
2361 avio_wb32(pb, size);
2362 ffio_wfourcc(pb, name);
2363 avio_wb32(pb, size - 8);
2364 ffio_wfourcc(pb, "data");
2365 avio_wb32(pb, 0x15);
2367 if (len==4) avio_wb32(pb, num);
2368 else avio_w8 (pb, num);
2373 /* iTunes meta data list */
2374 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2377 int64_t pos = avio_tell(pb);
2378 avio_wb32(pb, 0); /* size */
2379 ffio_wfourcc(pb, "ilst");
2380 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2381 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2382 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2383 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2384 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2385 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2387 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2388 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2389 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2390 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2391 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2392 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2393 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2394 mov_write_string_metadata(s, pb, "desc", "description",1);
2395 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2396 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2397 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2398 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2399 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2400 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2401 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2402 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2403 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2404 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2405 mov_write_trkn_tag(pb, mov, s, 0); // track number
2406 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2407 mov_write_tmpo_tag(pb, s);
2408 return update_size(pb, pos);
2411 /* iTunes meta data tag */
2412 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2416 int64_t pos = avio_tell(pb);
2417 avio_wb32(pb, 0); /* size */
2418 ffio_wfourcc(pb, "meta");
2420 mov_write_itunes_hdlr_tag(pb, mov, s);
2421 mov_write_ilst_tag(pb, mov, s);
2422 size = update_size(pb, pos);
2426 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2427 const char *name, const char *key)
2430 AVDictionaryEntry *t;
2432 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2435 len = strlen(t->value);
2438 avio_wb32(pb, size);
2439 ffio_wfourcc(pb, name);
2440 avio_write(pb, t->value, len);
2446 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2450 GET_UTF8(val, *b++, return -1;)
2453 avio_wb16(pb, 0x00);
2457 static uint16_t language_code(const char *str)
2459 return (((str[0] - 0x60) & 0x1F) << 10) +
2460 (((str[1] - 0x60) & 0x1F) << 5) +
2461 (( str[2] - 0x60) & 0x1F);
2464 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2465 const char *tag, const char *str)
2467 int64_t pos = avio_tell(pb);
2468 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2469 if (!t || !utf8len(t->value))
2471 avio_wb32(pb, 0); /* size */
2472 ffio_wfourcc(pb, tag); /* type */
2473 avio_wb32(pb, 0); /* version + flags */
2474 if (!strcmp(tag, "yrrc"))
2475 avio_wb16(pb, atoi(t->value));
2477 avio_wb16(pb, language_code("eng")); /* language */
2478 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2479 if (!strcmp(tag, "albm") &&
2480 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2481 avio_w8(pb, atoi(t->value));
2483 return update_size(pb, pos);
2486 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2488 int64_t pos = avio_tell(pb);
2489 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2491 avio_wb32(pb, 0); // size
2492 ffio_wfourcc(pb, "chpl");
2493 avio_wb32(pb, 0x01000000); // version + flags
2494 avio_wb32(pb, 0); // unknown
2495 avio_w8(pb, nb_chapters);
2497 for (i = 0; i < nb_chapters; i++) {
2498 AVChapter *c = s->chapters[i];
2499 AVDictionaryEntry *t;
2500 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2502 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2503 int len = FFMIN(strlen(t->value), 255);
2505 avio_write(pb, t->value, len);
2509 return update_size(pb, pos);
2512 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2515 AVIOContext *pb_buf;
2519 ret = avio_open_dyn_buf(&pb_buf);
2523 if (mov->mode & MODE_3GP) {
2524 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2525 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2526 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2527 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2528 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2529 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2530 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2531 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2532 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2533 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2534 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2535 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2536 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2537 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2538 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2539 // currently ignored by mov.c
2540 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2541 // add support for libquicktime, this atom is also actually read by mov.c
2542 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2543 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2544 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2545 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2547 /* iTunes meta data */
2548 mov_write_meta_tag(pb_buf, mov, s);
2551 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2552 mov_write_chpl_tag(pb_buf, s);
2554 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2555 avio_wb32(pb, size + 8);
2556 ffio_wfourcc(pb, "udta");
2557 avio_write(pb, buf, size);
2564 static void mov_write_psp_udta_tag(AVIOContext *pb,
2565 const char *str, const char *lang, int type)
2567 int len = utf8len(str) + 1;
2570 avio_wb16(pb, len * 2 + 10); /* size */
2571 avio_wb32(pb, type); /* type */
2572 avio_wb16(pb, language_code(lang)); /* language */
2573 avio_wb16(pb, 0x01); /* ? */
2574 ascii_to_wc(pb, str);
2577 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2579 MOVMuxContext *mov = s->priv_data;
2580 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2584 pos = avio_tell(pb);
2585 avio_wb32(pb, 0); /* size placeholder*/
2586 ffio_wfourcc(pb, "uuid");
2587 ffio_wfourcc(pb, "USMT");
2588 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2589 avio_wb32(pb, 0xbb88695c);
2590 avio_wb32(pb, 0xfac9c740);
2592 pos2 = avio_tell(pb);
2593 avio_wb32(pb, 0); /* size placeholder*/
2594 ffio_wfourcc(pb, "MTDT");
2598 avio_wb16(pb, 0x0C); /* size */
2599 avio_wb32(pb, 0x0B); /* type */
2600 avio_wb16(pb, language_code("und")); /* language */
2601 avio_wb16(pb, 0x0); /* ? */
2602 avio_wb16(pb, 0x021C); /* data */
2605 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2606 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2607 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2609 update_size(pb, pos2);
2610 return update_size(pb, pos);
2616 static void build_chunks(MOVTrack *trk)
2619 MOVIentry *chunk = &trk->cluster[0];
2620 uint64_t chunkSize = chunk->size;
2621 chunk->chunkNum = 1;
2622 if (trk->chunkCount)
2624 trk->chunkCount = 1;
2625 for (i = 1; i<trk->entry; i++){
2626 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2627 chunkSize + trk->cluster[i].size < (1<<20)){
2628 chunkSize += trk->cluster[i].size;
2629 chunk->samples_in_chunk += trk->cluster[i].entries;
2631 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2632 chunk=&trk->cluster[i];
2633 chunkSize = chunk->size;
2639 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2643 int64_t pos = avio_tell(pb);
2644 avio_wb32(pb, 0); /* size placeholder*/
2645 ffio_wfourcc(pb, "moov");
2647 for (i = 0; i < mov->nb_streams; i++) {
2648 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2651 mov->tracks[i].time = mov->time;
2652 mov->tracks[i].track_id = i + 1;
2654 if (mov->tracks[i].entry)
2655 build_chunks(&mov->tracks[i]);
2658 if (mov->chapter_track)
2659 for (i = 0; i < s->nb_streams; i++) {
2660 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2661 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2663 for (i = 0; i < mov->nb_streams; i++) {
2664 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2665 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2666 mov->tracks[i].tref_id =
2667 mov->tracks[mov->tracks[i].src_track].track_id;
2670 for (i = 0; i < mov->nb_streams; i++) {
2671 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2672 int src_trk = mov->tracks[i].src_track;
2673 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2674 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2675 //src_trk may have a different timescale than the tmcd track
2676 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2677 mov->tracks[i].timescale,
2678 mov->tracks[src_trk].timescale);
2682 mov_write_mvhd_tag(pb, mov);
2683 if (mov->mode != MODE_MOV && !mov->iods_skip)
2684 mov_write_iods_tag(pb, mov);
2685 for (i = 0; i < mov->nb_streams; i++) {
2686 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2687 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2690 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2691 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2693 if (mov->mode == MODE_PSP)
2694 mov_write_uuidusmt_tag(pb, s);
2696 mov_write_udta_tag(pb, mov, s);
2698 return update_size(pb, pos);
2701 static void param_write_int(AVIOContext *pb, const char *name, int value)
2703 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2706 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2708 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2711 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2714 len = FFMIN(sizeof(buf) / 2 - 1, len);
2715 ff_data_to_hex(buf, value, len, 0);
2716 buf[2 * len] = '\0';
2717 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2720 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2722 int64_t pos = avio_tell(pb);
2724 static const uint8_t uuid[] = {
2725 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2726 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2730 ffio_wfourcc(pb, "uuid");
2731 avio_write(pb, uuid, sizeof(uuid));
2734 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2735 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2736 avio_printf(pb, "<head>\n");
2738 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2740 avio_printf(pb, "</head>\n");
2741 avio_printf(pb, "<body>\n");
2742 avio_printf(pb, "<switch>\n");
2743 for (i = 0; i < mov->nb_streams; i++) {
2744 MOVTrack *track = &mov->tracks[i];
2746 /* track->track_id is initialized in write_moov, and thus isn't known
2748 int track_id = i + 1;
2750 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2752 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2757 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2758 track->enc->bit_rate);
2759 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2760 param_write_int(pb, "trackID", track_id);
2761 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2762 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2764 int size = track->enc->extradata_size;
2765 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2767 param_write_hex(pb, "CodecPrivateData",
2768 ptr ? ptr : track->enc->extradata,
2772 param_write_string(pb, "FourCC", "H264");
2773 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2774 param_write_string(pb, "FourCC", "WVC1");
2775 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2776 track->enc->extradata_size);
2778 param_write_int(pb, "MaxWidth", track->enc->width);
2779 param_write_int(pb, "MaxHeight", track->enc->height);
2780 param_write_int(pb, "DisplayWidth", track->enc->width);
2781 param_write_int(pb, "DisplayHeight", track->enc->height);
2783 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2784 param_write_string(pb, "FourCC", "AACL");
2785 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2786 param_write_string(pb, "FourCC", "WMAP");
2788 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2789 track->enc->extradata_size);
2790 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2791 track->enc->codec_id));
2792 param_write_int(pb, "Channels", track->enc->channels);
2793 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2794 param_write_int(pb, "BitsPerSample", 16);
2795 param_write_int(pb, "PacketSize", track->enc->block_align ?
2796 track->enc->block_align : 4);
2798 avio_printf(pb, "</%s>\n", type);
2800 avio_printf(pb, "</switch>\n");
2801 avio_printf(pb, "</body>\n");
2802 avio_printf(pb, "</smil>\n");
2804 return update_size(pb, pos);
2807 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2810 ffio_wfourcc(pb, "mfhd");
2812 avio_wb32(pb, mov->fragments);
2816 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2817 MOVTrack *track, int64_t moof_offset)
2819 int64_t pos = avio_tell(pb);
2820 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2821 MOV_TFHD_BASE_DATA_OFFSET;
2822 if (!track->entry) {
2823 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2825 flags |= MOV_TFHD_DEFAULT_FLAGS;
2827 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2828 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2830 /* Don't set a default sample size, the silverlight player refuses
2831 * to play files with that set. Don't set a default sample duration,
2832 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2833 * file format says it MUST NOT be set. */
2834 if (track->mode == MODE_ISM)
2835 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2836 MOV_TFHD_BASE_DATA_OFFSET);
2838 avio_wb32(pb, 0); /* size placeholder */
2839 ffio_wfourcc(pb, "tfhd");
2840 avio_w8(pb, 0); /* version */
2841 avio_wb24(pb, flags);
2843 avio_wb32(pb, track->track_id); /* track-id */
2844 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2845 avio_wb64(pb, moof_offset);
2846 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2847 track->default_duration = get_cluster_duration(track, 0);
2848 avio_wb32(pb, track->default_duration);
2850 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2851 track->default_size = track->entry ? track->cluster[0].size : 1;
2852 avio_wb32(pb, track->default_size);
2854 track->default_size = -1;
2856 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2857 track->default_sample_flags =
2858 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2859 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2860 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2861 avio_wb32(pb, track->default_sample_flags);
2864 return update_size(pb, pos);
2867 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2869 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2870 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2873 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2874 MOVTrack *track, int moof_size)
2876 int64_t pos = avio_tell(pb);
2877 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2880 for (i = 0; i < track->entry; i++) {
2881 if (get_cluster_duration(track, i) != track->default_duration)
2882 flags |= MOV_TRUN_SAMPLE_DURATION;
2883 if (track->cluster[i].size != track->default_size)
2884 flags |= MOV_TRUN_SAMPLE_SIZE;
2885 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2886 flags |= MOV_TRUN_SAMPLE_FLAGS;
2888 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2889 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2890 if (track->flags & MOV_TRACK_CTTS)
2891 flags |= MOV_TRUN_SAMPLE_CTS;
2893 avio_wb32(pb, 0); /* size placeholder */
2894 ffio_wfourcc(pb, "trun");
2895 avio_w8(pb, 0); /* version */
2896 avio_wb24(pb, flags);
2898 avio_wb32(pb, track->entry); /* sample count */
2899 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2900 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2901 track->track_id != 1)
2902 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2904 avio_wb32(pb, moof_size + 8 + track->data_offset +
2905 track->cluster[0].pos); /* data offset */
2906 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2907 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2909 for (i = 0; i < track->entry; i++) {
2910 if (flags & MOV_TRUN_SAMPLE_DURATION)
2911 avio_wb32(pb, get_cluster_duration(track, i));
2912 if (flags & MOV_TRUN_SAMPLE_SIZE)
2913 avio_wb32(pb, track->cluster[i].size);
2914 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2915 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2916 if (flags & MOV_TRUN_SAMPLE_CTS)
2917 avio_wb32(pb, track->cluster[i].cts);
2920 return update_size(pb, pos);
2923 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2925 int64_t pos = avio_tell(pb);
2926 static const uint8_t uuid[] = {
2927 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2928 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2931 avio_wb32(pb, 0); /* size placeholder */
2932 ffio_wfourcc(pb, "uuid");
2933 avio_write(pb, uuid, sizeof(uuid));
2936 avio_wb64(pb, track->frag_start);
2937 avio_wb64(pb, track->start_dts + track->track_duration -
2938 track->cluster[0].dts);
2940 return update_size(pb, pos);
2943 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2944 MOVTrack *track, int entry)
2946 int n = track->nb_frag_info - 1 - entry, i;
2947 int size = 8 + 16 + 4 + 1 + 16*n;
2948 static const uint8_t uuid[] = {
2949 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2950 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2956 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2957 avio_wb32(pb, size);
2958 ffio_wfourcc(pb, "uuid");
2959 avio_write(pb, uuid, sizeof(uuid));
2963 for (i = 0; i < n; i++) {
2964 int index = entry + 1 + i;
2965 avio_wb64(pb, track->frag_info[index].time);
2966 avio_wb64(pb, track->frag_info[index].duration);
2968 if (n < mov->ism_lookahead) {
2969 int free_size = 16 * (mov->ism_lookahead - n);
2970 avio_wb32(pb, free_size);
2971 ffio_wfourcc(pb, "free");
2972 ffio_fill(pb, 0, free_size - 8);
2978 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2981 int64_t pos = avio_tell(pb);
2983 for (i = 0; i < mov->ism_lookahead; i++) {
2984 /* Update the tfrf tag for the last ism_lookahead fragments,
2985 * nb_frag_info - 1 is the next fragment to be written. */
2986 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2988 avio_seek(pb, pos, SEEK_SET);
2992 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2993 MOVTrack *track, int64_t moof_offset,
2996 int64_t pos = avio_tell(pb);
2997 avio_wb32(pb, 0); /* size placeholder */
2998 ffio_wfourcc(pb, "traf");
3000 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3001 mov_write_trun_tag(pb, mov, track, moof_size);
3002 if (mov->mode == MODE_ISM) {
3003 mov_write_tfxd_tag(pb, track);
3005 if (mov->ism_lookahead) {
3006 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3008 track->tfrf_offset = avio_tell(pb);
3009 avio_wb32(pb, 8 + size);
3010 ffio_wfourcc(pb, "free");
3011 for (i = 0; i < size; i++)
3016 return update_size(pb, pos);
3019 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3020 int tracks, int moof_size)
3022 int64_t pos = avio_tell(pb);
3025 avio_wb32(pb, 0); /* size placeholder */
3026 ffio_wfourcc(pb, "moof");
3028 mov_write_mfhd_tag(pb, mov);
3029 for (i = 0; i < mov->nb_streams; i++) {
3030 MOVTrack *track = &mov->tracks[i];
3031 if (tracks >= 0 && i != tracks)
3035 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3038 return update_size(pb, pos);
3041 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
3043 AVIOContext *avio_buf;
3046 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3048 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3049 moof_size = ffio_close_null_buf(avio_buf);
3050 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3053 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3055 int64_t pos = avio_tell(pb);
3058 avio_wb32(pb, 0); /* size placeholder */
3059 ffio_wfourcc(pb, "tfra");
3060 avio_w8(pb, 1); /* version */
3063 avio_wb32(pb, track->track_id);
3064 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3065 avio_wb32(pb, track->nb_frag_info);
3066 for (i = 0; i < track->nb_frag_info; i++) {
3067 avio_wb64(pb, track->frag_info[i].time);
3068 avio_wb64(pb, track->frag_info[i].offset);
3069 avio_w8(pb, 1); /* traf number */
3070 avio_w8(pb, 1); /* trun number */
3071 avio_w8(pb, 1); /* sample number */
3074 return update_size(pb, pos);
3077 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3079 int64_t pos = avio_tell(pb);
3082 avio_wb32(pb, 0); /* size placeholder */
3083 ffio_wfourcc(pb, "mfra");
3084 /* An empty mfra atom is enough to indicate to the publishing point that
3085 * the stream has ended. */
3086 if (mov->flags & FF_MOV_FLAG_ISML)
3087 return update_size(pb, pos);
3089 for (i = 0; i < mov->nb_streams; i++) {
3090 MOVTrack *track = &mov->tracks[i];
3091 if (track->nb_frag_info)
3092 mov_write_tfra_tag(pb, track);
3096 ffio_wfourcc(pb, "mfro");
3097 avio_wb32(pb, 0); /* version + flags */
3098 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3100 return update_size(pb, pos);
3103 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3105 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3106 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3108 mov->mdat_pos = avio_tell(pb);
3109 avio_wb32(pb, 0); /* size placeholder*/
3110 ffio_wfourcc(pb, "mdat");
3114 /* TODO: This needs to be more general */
3115 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3117 MOVMuxContext *mov = s->priv_data;
3118 int64_t pos = avio_tell(pb);
3119 int has_h264 = 0, has_video = 0;
3123 for (i = 0; i < s->nb_streams; i++) {
3124 AVStream *st = s->streams[i];
3125 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3127 if (st->codec->codec_id == AV_CODEC_ID_H264)
3131 avio_wb32(pb, 0); /* size */
3132 ffio_wfourcc(pb, "ftyp");
3134 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3135 ffio_wfourcc(pb, mov->major_brand);
3136 else if (mov->mode == MODE_3GP) {
3137 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3138 minor = has_h264 ? 0x100 : 0x200;
3139 } else if (mov->mode & MODE_3G2) {
3140 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3141 minor = has_h264 ? 0x20000 : 0x10000;
3142 } else if (mov->mode == MODE_PSP)
3143 ffio_wfourcc(pb, "MSNV");
3144 else if (mov->mode == MODE_MP4)
3145 ffio_wfourcc(pb, "isom");
3146 else if (mov->mode == MODE_IPOD)
3147 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3148 else if (mov->mode == MODE_ISM)
3149 ffio_wfourcc(pb, "isml");
3150 else if (mov->mode == MODE_F4V)
3151 ffio_wfourcc(pb, "f4v ");
3153 ffio_wfourcc(pb, "qt ");
3155 avio_wb32(pb, minor);
3157 if (mov->mode == MODE_MOV)
3158 ffio_wfourcc(pb, "qt ");
3159 else if (mov->mode == MODE_ISM) {
3160 ffio_wfourcc(pb, "piff");
3161 ffio_wfourcc(pb, "iso2");
3163 ffio_wfourcc(pb, "isom");
3164 ffio_wfourcc(pb, "iso2");
3166 ffio_wfourcc(pb, "avc1");
3169 if (mov->mode == MODE_3GP)
3170 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3171 else if (mov->mode & MODE_3G2)
3172 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3173 else if (mov->mode == MODE_PSP)
3174 ffio_wfourcc(pb, "MSNV");
3175 else if (mov->mode == MODE_MP4)
3176 ffio_wfourcc(pb, "mp41");
3177 return update_size(pb, pos);
3180 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3182 AVStream *video_st = s->streams[0];
3183 AVCodecContext *video_codec = s->streams[0]->codec;
3184 AVCodecContext *audio_codec = s->streams[1]->codec;
3185 int audio_rate = audio_codec->sample_rate;
3186 // TODO: should be avg_frame_rate
3187 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3188 int audio_kbitrate = audio_codec->bit_rate / 1000;
3189 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3191 avio_wb32(pb, 0x94); /* size */
3192 ffio_wfourcc(pb, "uuid");
3193 ffio_wfourcc(pb, "PROF");
3195 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3196 avio_wb32(pb, 0xbb88695c);
3197 avio_wb32(pb, 0xfac9c740);
3199 avio_wb32(pb, 0x0); /* ? */
3200 avio_wb32(pb, 0x3); /* 3 sections ? */
3202 avio_wb32(pb, 0x14); /* size */
3203 ffio_wfourcc(pb, "FPRF");
3204 avio_wb32(pb, 0x0); /* ? */
3205 avio_wb32(pb, 0x0); /* ? */
3206 avio_wb32(pb, 0x0); /* ? */
3208 avio_wb32(pb, 0x2c); /* size */
3209 ffio_wfourcc(pb, "APRF"); /* audio */
3211 avio_wb32(pb, 0x2); /* TrackID */
3212 ffio_wfourcc(pb, "mp4a");
3213 avio_wb32(pb, 0x20f);
3215 avio_wb32(pb, audio_kbitrate);
3216 avio_wb32(pb, audio_kbitrate);
3217 avio_wb32(pb, audio_rate);
3218 avio_wb32(pb, audio_codec->channels);
3220 avio_wb32(pb, 0x34); /* size */
3221 ffio_wfourcc(pb, "VPRF"); /* video */
3223 avio_wb32(pb, 0x1); /* TrackID */
3224 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3225 ffio_wfourcc(pb, "avc1");
3226 avio_wb16(pb, 0x014D);
3227 avio_wb16(pb, 0x0015);
3229 ffio_wfourcc(pb, "mp4v");
3230 avio_wb16(pb, 0x0000);
3231 avio_wb16(pb, 0x0103);
3234 avio_wb32(pb, video_kbitrate);
3235 avio_wb32(pb, video_kbitrate);
3236 avio_wb32(pb, frame_rate);
3237 avio_wb32(pb, frame_rate);
3238 avio_wb16(pb, video_codec->width);
3239 avio_wb16(pb, video_codec->height);
3240 avio_wb32(pb, 0x010001); /* ? */
3243 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3246 int i, closed_gop = 0;
3248 for (i = 0; i < pkt->size - 4; i++) {
3249 c = (c << 8) + pkt->data[i];
3250 if (c == 0x1b8) { // gop
3251 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3252 } else if (c == 0x100) { // pic
3253 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3254 if (!temp_ref || closed_gop) // I picture is not reordered
3255 *flags = MOV_SYNC_SAMPLE;
3257 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3264 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3266 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3267 int seq = 0, entry = 0;
3268 int key = pkt->flags & AV_PKT_FLAG_KEY;
3269 start = find_next_marker(pkt->data, end);
3270 for (next = start; next < end; start = next) {
3271 next = find_next_marker(start + 4, end);
3272 switch (AV_RB32(start)) {
3273 case VC1_CODE_SEQHDR:
3276 case VC1_CODE_ENTRYPOINT:
3279 case VC1_CODE_SLICE:
3280 trk->vc1_info.slices = 1;
3284 if (!trk->entry && !fragment) {
3285 /* First packet in first fragment */
3286 trk->vc1_info.first_packet_seq = seq;
3287 trk->vc1_info.first_packet_entry = entry;
3288 } else if ((seq && !trk->vc1_info.packet_seq) ||
3289 (entry && !trk->vc1_info.packet_entry)) {
3291 for (i = 0; i < trk->entry; i++)
3292 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3293 trk->has_keyframes = 0;
3295 trk->vc1_info.packet_seq = 1;
3297 trk->vc1_info.packet_entry = 1;
3299 /* First fragment */
3300 if ((!seq || trk->vc1_info.first_packet_seq) &&
3301 (!entry || trk->vc1_info.first_packet_entry)) {
3302 /* First packet had the same headers as this one, readd the
3303 * sync sample flag. */
3304 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3305 trk->has_keyframes = 1;
3309 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3311 else if (trk->vc1_info.packet_seq)
3313 else if (trk->vc1_info.packet_entry)
3316 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3317 trk->has_keyframes++;
3321 static int mov_flush_fragment(AVFormatContext *s)
3323 MOVMuxContext *mov = s->priv_data;
3324 int i, first_track = -1;
3325 int64_t mdat_size = 0;
3327 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3330 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3331 int64_t pos = avio_tell(s->pb);
3333 int buf_size, moov_size;
3335 for (i = 0; i < mov->nb_streams; i++)
3336 if (!mov->tracks[i].entry)
3338 /* Don't write the initial moov unless all tracks have data */
3339 if (i < mov->nb_streams)
3342 moov_size = get_moov_size(s);
3343 for (i = 0; i < mov->nb_streams; i++)
3344 mov->tracks[i].data_offset = pos + moov_size + 8;
3346 mov_write_moov_tag(s->pb, mov, s);
3348 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3349 mov->mdat_buf = NULL;
3350 avio_wb32(s->pb, buf_size + 8);
3351 ffio_wfourcc(s->pb, "mdat");
3352 avio_write(s->pb, buf, buf_size);
3357 for (i = 0; i < mov->nb_streams; i++) {
3358 if (mov->tracks[i].entry)
3359 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3360 mov->tracks[i].track_duration -
3361 mov->tracks[i].cluster[0].dts;
3362 mov->tracks[i].entry = 0;
3368 for (i = 0; i < mov->nb_streams; i++) {
3369 MOVTrack *track = &mov->tracks[i];
3370 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3371 track->data_offset = 0;
3373 track->data_offset = mdat_size;
3374 if (!track->mdat_buf)
3376 mdat_size += avio_tell(track->mdat_buf);
3377 if (first_track < 0)
3384 for (i = 0; i < mov->nb_streams; i++) {
3385 MOVTrack *track = &mov->tracks[i];
3386 int buf_size, write_moof = 1, moof_tracks = -1;
3388 int64_t duration = 0;
3391 duration = track->start_dts + track->track_duration -
3392 track->cluster[0].dts;
3393 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3394 if (!track->mdat_buf)
3396 mdat_size = avio_tell(track->mdat_buf);
3399 write_moof = i == first_track;
3403 MOVFragmentInfo *info;
3405 track->nb_frag_info++;
3406 if (track->nb_frag_info >= track->frag_info_capacity) {
3407 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3408 if (av_reallocp_array(&track->frag_info,
3410 sizeof(*track->frag_info)))
3411 return AVERROR(ENOMEM);
3412 track->frag_info_capacity = new_capacity;
3414 info = &track->frag_info[track->nb_frag_info - 1];
3415 info->offset = avio_tell(s->pb);
3416 info->time = mov->tracks[i].frag_start;
3417 info->duration = duration;
3418 mov_write_tfrf_tags(s->pb, mov, track);
3420 mov_write_moof_tag(s->pb, mov, moof_tracks);
3421 info->tfrf_offset = track->tfrf_offset;
3424 avio_wb32(s->pb, mdat_size + 8);
3425 ffio_wfourcc(s->pb, "mdat");
3429 track->frag_start += duration;
3431 if (!track->mdat_buf)
3433 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3434 track->mdat_buf = NULL;
3436 avio_write(s->pb, buf, buf_size);
3446 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3448 MOVMuxContext *mov = s->priv_data;
3449 AVIOContext *pb = s->pb;
3450 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3451 AVCodecContext *enc = trk->enc;
3452 unsigned int samples_in_chunk = 0;
3453 int size = pkt->size;
3454 uint8_t *reformatted_data = NULL;
3457 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3458 if (duration < 0 || duration > INT_MAX) {
3459 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3463 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3464 pkt->pts = AV_NOPTS_VALUE;
3466 if (pkt->duration < 0) {
3467 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3468 return AVERROR(EINVAL);
3471 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3473 if (mov->fragments > 0) {
3474 if (!trk->mdat_buf) {
3475 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3480 if (!mov->mdat_buf) {
3481 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3488 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3489 /* We must find out how many AMR blocks there are in one packet */
3490 static uint16_t packed_size[16] =
3491 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3494 while (len < size && samples_in_chunk < 100) {
3495 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3498 if (samples_in_chunk > 1) {
3499 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3502 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3503 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3504 samples_in_chunk = enc->frame_size;
3505 } else if (trk->sample_size)
3506 samples_in_chunk = size / trk->sample_size;
3508 samples_in_chunk = 1;
3510 /* copy extradata if it exists */
3511 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3512 trk->vos_len = enc->extradata_size;
3513 trk->vos_data = av_malloc(trk->vos_len);
3514 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3517 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3518 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3519 if (!s->streams[pkt->stream_index]->nb_frames) {
3520 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3521 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
3522 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3525 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3527 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3528 /* from x264 or from bytestream h264 */
3529 /* nal reformating needed */
3530 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3531 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3533 avio_write(pb, reformatted_data, size);
3535 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3537 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3538 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3539 /* extradata is Annex B, assume the bitstream is too and convert it */
3540 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3541 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3542 avio_write(pb, reformatted_data, size);
3544 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3547 avio_write(pb, pkt->data, size);
3550 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3551 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3552 /* copy frame to create needed atoms */
3553 trk->vos_len = size;
3554 trk->vos_data = av_malloc(size);
3556 return AVERROR(ENOMEM);
3557 memcpy(trk->vos_data, pkt->data, size);
3560 if (trk->entry >= trk->cluster_capacity) {
3561 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3562 if (av_reallocp_array(&trk->cluster, new_capacity,
3563 sizeof(*trk->cluster)))
3564 return AVERROR(ENOMEM);
3565 trk->cluster_capacity = new_capacity;
3568 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3569 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3570 trk->cluster[trk->entry].chunkNum = 0;
3571 trk->cluster[trk->entry].size = size;
3572 trk->cluster[trk->entry].entries = samples_in_chunk;
3573 trk->cluster[trk->entry].dts = pkt->dts;
3574 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3575 /* First packet of a new fragment. We already wrote the duration
3576 * of the last packet of the previous fragment based on track_duration,
3577 * which might not exactly match our dts. Therefore adjust the dts
3578 * of this packet to be what the previous packets duration implies. */
3579 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3581 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3582 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3584 if (trk->start_dts == AV_NOPTS_VALUE)
3585 trk->start_dts = pkt->dts;
3586 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3587 trk->last_sample_is_subtitle_end = 0;
3589 if (pkt->pts == AV_NOPTS_VALUE) {
3590 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3591 pkt->pts = pkt->dts;
3593 if (pkt->dts != pkt->pts)
3594 trk->flags |= MOV_TRACK_CTTS;
3595 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3596 trk->cluster[trk->entry].flags = 0;
3597 if (enc->codec_id == AV_CODEC_ID_VC1) {
3598 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3599 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3600 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3601 trk->entry > 0) { // force sync sample for the first key frame
3602 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3603 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3604 trk->flags |= MOV_TRACK_STPS;
3606 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3608 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3609 trk->has_keyframes++;
3612 trk->sample_count += samples_in_chunk;
3613 mov->mdat_size += size;
3615 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3616 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3617 reformatted_data, size);
3618 av_free(reformatted_data);
3622 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3624 MOVMuxContext *mov = s->priv_data;
3625 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3626 AVCodecContext *enc = trk->enc;
3627 int64_t frag_duration = 0;
3628 int size = pkt->size;
3631 return 0; /* Discard 0 sized packets */
3633 if (trk->entry && pkt->stream_index < s->nb_streams)
3634 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3635 s->streams[pkt->stream_index]->time_base,
3637 if ((mov->max_fragment_duration &&
3638 frag_duration >= mov->max_fragment_duration) ||
3639 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3640 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3641 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3642 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3643 if (frag_duration >= mov->min_fragment_duration)
3644 mov_flush_fragment(s);
3647 return ff_mov_write_packet(s, pkt);
3650 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3654 uint8_t data[2] = {0};
3657 av_init_packet(&end);
3658 end.size = sizeof(data);
3663 end.stream_index = stream_index;
3665 ret = mov_write_single_packet(s, &end);
3666 av_free_packet(&end);
3671 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3674 mov_flush_fragment(s);
3678 MOVMuxContext *mov = s->priv_data;
3680 if (!pkt->size) return 0; /* Discard 0 sized packets */
3683 * Subtitles require special handling.
3685 * 1) For full complaince, every track must have a sample at
3686 * dts == 0, which is rarely true for subtitles. So, as soon
3687 * as we see any packet with dts > 0, write an empty subtitle
3688 * at dts == 0 for any subtitle track with no samples in it.
3690 * 2) For each subtitle track, check if the current packet's
3691 * dts is past the duration of the last subtitle sample. If
3692 * so, we now need to write an end sample for that subtitle.
3694 * This must be done conditionally to allow for subtitles that
3695 * immediately replace each other, in which case an end sample
3696 * is not needed, and is, in fact, actively harmful.
3698 * 3) See mov_write_trailer for how the final end sample is
3701 for (i = 0; i < mov->nb_streams; i++) {
3702 MOVTrack *trk = &mov->tracks[i];
3705 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3706 trk->track_duration < pkt->dts &&
3707 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3708 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3709 if (ret < 0) return ret;
3710 trk->last_sample_is_subtitle_end = 1;
3714 return mov_write_single_packet(s, pkt);
3718 // QuickTime chapters involve an additional text track with the chapter names
3719 // as samples, and a tref pointing from the other tracks to the chapter one.
3720 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3724 MOVMuxContext *mov = s->priv_data;
3725 MOVTrack *track = &mov->tracks[tracknum];
3726 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3729 track->mode = mov->mode;
3730 track->tag = MKTAG('t','e','x','t');
3731 track->timescale = MOV_TIMESCALE;
3732 track->enc = avcodec_alloc_context3(NULL);
3734 return AVERROR(ENOMEM);
3735 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3737 // These properties are required to make QT recognize the chapter track
3738 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3739 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3740 return AVERROR(ENOMEM);
3741 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3743 if (avio_open_dyn_buf(&pb) >= 0) {
3747 /* Stub header (usually for Quicktime chapter track) */
3749 avio_wb32(pb, 0x01); // displayFlags
3750 avio_w8(pb, 0x00); // horizontal justification
3751 avio_w8(pb, 0x00); // vertical justification
3752 avio_w8(pb, 0x00); // bgColourRed
3753 avio_w8(pb, 0x00); // bgColourGreen
3754 avio_w8(pb, 0x00); // bgColourBlue
3755 avio_w8(pb, 0x00); // bgColourAlpha
3757 avio_wb16(pb, 0x00); // defTextBoxTop
3758 avio_wb16(pb, 0x00); // defTextBoxLeft
3759 avio_wb16(pb, 0x00); // defTextBoxBottom
3760 avio_wb16(pb, 0x00); // defTextBoxRight
3762 avio_wb16(pb, 0x00); // startChar
3763 avio_wb16(pb, 0x00); // endChar
3764 avio_wb16(pb, 0x01); // fontID
3765 avio_w8(pb, 0x00); // fontStyleFlags
3766 avio_w8(pb, 0x00); // fontSize
3767 avio_w8(pb, 0x00); // fgColourRed
3768 avio_w8(pb, 0x00); // fgColourGreen
3769 avio_w8(pb, 0x00); // fgColourBlue
3770 avio_w8(pb, 0x00); // fgColourAlpha
3772 avio_wb32(pb, 0x0D); // box size
3773 ffio_wfourcc(pb, "ftab"); // box atom name
3774 avio_wb16(pb, 0x01); // entry count
3776 avio_wb16(pb, 0x01); // font ID
3777 avio_w8(pb, 0x00); // font name length
3779 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3780 track->enc->extradata = buf;
3781 track->enc->extradata_size = size;
3788 for (i = 0; i < s->nb_chapters; i++) {
3789 AVChapter *c = s->chapters[i];
3790 AVDictionaryEntry *t;
3792 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3793 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3794 pkt.duration = end - pkt.dts;
3796 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3797 const char encd[12] = {
3798 0x00, 0x00, 0x00, 0x0C,
3800 0x00, 0x00, 0x01, 0x00 };
3801 len = strlen(t->value);
3802 pkt.size = len + 2 + 12;
3803 pkt.data = av_malloc(pkt.size);
3805 return AVERROR(ENOMEM);
3806 AV_WB16(pkt.data, len);
3807 memcpy(pkt.data + 2, t->value, len);
3808 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3809 ff_mov_write_packet(s, &pkt);
3810 av_freep(&pkt.data);
3817 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3820 MOVMuxContext *mov = s->priv_data;
3821 MOVTrack *track = &mov->tracks[index];
3822 AVStream *src_st = s->streams[src_index];
3824 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3825 AVRational rate = find_fps(s, src_st);
3827 /* compute the frame number */
3828 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3832 /* tmcd track based on video stream */
3833 track->mode = mov->mode;
3834 track->tag = MKTAG('t','m','c','d');
3835 track->src_track = src_index;
3836 track->timescale = mov->tracks[src_index].timescale;
3837 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3838 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3840 /* set st to src_st for metadata access*/
3843 /* encode context: tmcd data stream */
3844 track->enc = avcodec_alloc_context3(NULL);
3845 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3846 track->enc->codec_tag = track->tag;
3847 track->enc->time_base = av_inv_q(rate);
3849 /* the tmcd track just contains one packet with the frame number */
3850 pkt.data = av_malloc(pkt.size);
3851 AV_WB32(pkt.data, tc.start);
3852 ret = ff_mov_write_packet(s, &pkt);
3858 * st->disposition controls the "enabled" flag in the tkhd tag.
3859 * QuickTime will not play a track if it is not enabled. So make sure
3860 * that one track of each type (audio, video, subtitle) is enabled.
3862 * Subtitles are special. For audio and video, setting "enabled" also
3863 * makes the track "default" (i.e. it is rendered when played). For
3864 * subtitles, an "enabled" subtitle is not rendered by default, but
3865 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3868 static void enable_tracks(AVFormatContext *s)
3870 MOVMuxContext *mov = s->priv_data;
3872 int enabled[AVMEDIA_TYPE_NB];
3873 int first[AVMEDIA_TYPE_NB];
3875 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3880 for (i = 0; i < s->nb_streams; i++) {
3881 AVStream *st = s->streams[i];
3883 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3884 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3887 if (first[st->codec->codec_type] < 0)
3888 first[st->codec->codec_type] = i;
3889 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3890 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3891 enabled[st->codec->codec_type]++;
3895 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3897 case AVMEDIA_TYPE_VIDEO:
3898 case AVMEDIA_TYPE_AUDIO:
3899 case AVMEDIA_TYPE_SUBTITLE:
3901 mov->per_stream_grouping = 1;
3902 if (!enabled[i] && first[i] >= 0)
3903 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3909 static void mov_free(AVFormatContext *s)
3911 MOVMuxContext *mov = s->priv_data;
3914 if (mov->chapter_track) {
3915 if (mov->tracks[mov->chapter_track].enc)
3916 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3917 av_freep(&mov->tracks[mov->chapter_track].enc);
3920 for (i = 0; i < mov->nb_streams; i++) {
3921 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3922 ff_mov_close_hinting(&mov->tracks[i]);
3923 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3924 av_freep(&mov->tracks[i].enc);
3925 av_freep(&mov->tracks[i].cluster);
3926 av_freep(&mov->tracks[i].frag_info);
3928 if (mov->tracks[i].vos_len)
3929 av_freep(&mov->tracks[i].vos_data);
3932 av_freep(&mov->tracks);
3935 static uint32_t rgb_to_yuv(uint32_t rgb)
3940 r = (rgb >> 16) & 0xFF;
3941 g = (rgb >> 8) & 0xFF;
3944 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3945 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3946 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3948 return (y << 16) | (cr << 8) | cb;
3951 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3954 int i, width = 720, height = 480;
3955 int have_palette = 0, have_size = 0;
3956 uint32_t palette[16];
3957 char *cur = st->codec->extradata;
3959 while (cur && *cur) {
3960 if (strncmp("palette:", cur, 8) == 0) {
3962 count = sscanf(cur + 8,
3963 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3964 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3965 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3966 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3967 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3968 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3969 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3970 &palette[12], &palette[13], &palette[14], &palette[15]);
3972 for (i = 0; i < count; i++) {
3973 palette[i] = rgb_to_yuv(palette[i]);
3976 } else if (!strncmp("size:", cur, 5)) {
3977 sscanf(cur + 5, "%dx%d", &width, &height);
3980 if (have_palette && have_size)
3982 cur += strcspn(cur, "\n\r");
3983 cur += strspn(cur, "\n\r");
3986 track->vos_data = av_malloc(16*4);
3987 if (!track->vos_data)
3988 return AVERROR(ENOMEM);
3989 for (i = 0; i < 16; i++) {
3990 AV_WB32(track->vos_data + i * 4, palette[i]);
3992 track->vos_len = 16 * 4;
3994 st->codec->width = width;
3995 st->codec->height = track->height = height;
4000 static int mov_write_header(AVFormatContext *s)
4002 AVIOContext *pb = s->pb;
4003 MOVMuxContext *mov = s->priv_data;
4004 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4005 int i, ret, hint_track = 0, tmcd_track = 0;
4009 /* Default mode == MP4 */
4010 mov->mode = MODE_MP4;
4013 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4014 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4015 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4016 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4017 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4018 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4019 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4022 if (s->flags & AVFMT_FLAG_BITEXACT)
4025 /* Set the FRAGMENT flag if any of the fragmentation methods are
4027 if (mov->max_fragment_duration || mov->max_fragment_size ||
4028 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4029 FF_MOV_FLAG_FRAG_KEYFRAME |
4030 FF_MOV_FLAG_FRAG_CUSTOM))
4031 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4033 /* Set other implicit flags immediately */
4034 if (mov->mode == MODE_ISM)
4035 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4036 FF_MOV_FLAG_FRAGMENT;
4038 /* faststart: moov at the beginning of the file, if supported */
4039 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4040 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
4041 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
4042 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
4043 "with fragmentation and custom IO, disabling faststart\n");
4044 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
4046 mov->reserved_moov_size = -1;
4049 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
4050 s->avoid_negative_ts = 2;
4053 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4054 * is enabled, we don't support non-seekable output at all. */
4055 if (!s->pb->seekable &&
4056 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4057 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4058 return AVERROR(EINVAL);
4061 mov_write_ftyp_tag(pb,s);
4062 if (mov->mode == MODE_PSP) {
4063 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4064 for (i = 0; i < s->nb_streams; i++) {
4065 AVStream *st = s->streams[i];
4066 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4068 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4074 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4075 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4076 return AVERROR(EINVAL);
4078 mov_write_uuidprof_tag(pb, s);
4081 mov->nb_streams = s->nb_streams;
4082 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4083 mov->chapter_track = mov->nb_streams++;
4085 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4086 /* Add hint tracks for each audio and video stream */
4087 hint_track = mov->nb_streams;
4088 for (i = 0; i < s->nb_streams; i++) {
4089 AVStream *st = s->streams[i];
4090 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4091 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4097 if (mov->mode == MODE_MOV) {
4098 tmcd_track = mov->nb_streams;
4100 /* +1 tmcd track for each video stream with a timecode */
4101 for (i = 0; i < s->nb_streams; i++) {
4102 AVStream *st = s->streams[i];
4103 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4104 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4105 mov->nb_meta_tmcd++;
4108 /* check if there is already a tmcd track to remux */
4109 if (mov->nb_meta_tmcd) {
4110 for (i = 0; i < s->nb_streams; i++) {
4111 AVStream *st = s->streams[i];
4112 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4113 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4114 "so timecode metadata are now ignored\n");
4115 mov->nb_meta_tmcd = 0;
4120 mov->nb_streams += mov->nb_meta_tmcd;
4123 // Reserve an extra stream for chapters for the case where chapters
4124 // are written in the trailer
4125 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4127 return AVERROR(ENOMEM);
4129 for (i = 0; i < s->nb_streams; i++) {
4130 AVStream *st= s->streams[i];
4131 MOVTrack *track= &mov->tracks[i];
4132 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4135 track->enc = st->codec;
4136 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4137 if (track->language < 0)
4138 track->language = 0;
4139 track->mode = mov->mode;
4140 track->tag = mov_find_codec_tag(s, track);
4142 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4143 "codec not currently supported in container\n",
4144 avcodec_get_name(st->codec->codec_id), i);
4145 ret = AVERROR(EINVAL);
4148 /* If hinting of this track is enabled by a later hint track,
4149 * this is updated. */
4150 track->hint_track = -1;
4151 track->start_dts = AV_NOPTS_VALUE;
4152 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4153 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4154 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4155 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4156 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4157 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4158 ret = AVERROR(EINVAL);
4161 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4163 if (mov->video_track_timescale) {
4164 track->timescale = mov->video_track_timescale;
4166 track->timescale = st->time_base.den;
4167 while(track->timescale < 10000)
4168 track->timescale *= 2;
4170 if (st->codec->width > 65535 || st->codec->height > 65535) {
4171 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4172 ret = AVERROR(EINVAL);
4175 if (track->mode == MODE_MOV && track->timescale > 100000)
4176 av_log(s, AV_LOG_WARNING,
4177 "WARNING codec timebase is very high. If duration is too long,\n"
4178 "file may not be playable by quicktime. Specify a shorter timebase\n"
4179 "or choose different container.\n");
4180 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4181 track->timescale = st->codec->sample_rate;
4182 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4183 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4184 track->audio_vbr = 1;
4185 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4186 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4187 st->codec->codec_id == AV_CODEC_ID_ILBC){
4188 if (!st->codec->block_align) {
4189 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4190 ret = AVERROR(EINVAL);
4193 track->sample_size = st->codec->block_align;
4194 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4195 track->audio_vbr = 1;
4197 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4199 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4200 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4201 track->audio_vbr = 1;
4203 if (track->mode != MODE_MOV &&
4204 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4205 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4206 i, track->enc->sample_rate);
4207 ret = AVERROR(EINVAL);
4210 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4211 track->timescale = st->time_base.den;
4212 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4213 track->timescale = st->time_base.den;
4215 track->timescale = MOV_TIMESCALE;
4218 track->height = st->codec->height;
4219 /* The ism specific timescale isn't mandatory, but is assumed by
4220 * some tools, such as mp4split. */
4221 if (mov->mode == MODE_ISM)
4222 track->timescale = 10000000;
4224 avpriv_set_pts_info(st, 64, 1, track->timescale);
4226 /* copy extradata if it exists */
4227 if (st->codec->extradata_size) {
4228 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4229 mov_create_dvd_sub_decoder_specific_info(track, st);
4231 track->vos_len = st->codec->extradata_size;
4232 track->vos_data = av_malloc(track->vos_len);
4233 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4238 for (i = 0; i < s->nb_streams; i++) {
4240 AVStream *st= s->streams[i];
4241 MOVTrack *track= &mov->tracks[i];
4243 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4244 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4247 for (j = 0; j < s->nb_streams; j++) {
4248 AVStream *stj= s->streams[j];
4249 MOVTrack *trackj= &mov->tracks[j];
4253 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4254 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4255 trackj->language != track->language ||
4256 trackj->tag != track->tag
4259 track->multichannel_as_mono++;
4266 if (mov->reserved_moov_size){
4267 mov->reserved_moov_pos= avio_tell(pb);
4268 if (mov->reserved_moov_size > 0)
4269 avio_skip(pb, mov->reserved_moov_size);
4272 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4273 /* If no fragmentation options have been set, set a default. */
4274 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4275 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4276 !mov->max_fragment_duration && !mov->max_fragment_size)
4277 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4279 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4280 mov->reserved_moov_pos = avio_tell(pb);
4281 mov_write_mdat_tag(pb, mov);
4284 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4285 mov->time = ff_iso8601_to_unix_time(t->value);
4287 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4289 if (mov->chapter_track)
4290 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4293 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4294 /* Initialize the hint tracks for each audio and video stream */
4295 for (i = 0; i < s->nb_streams; i++) {
4296 AVStream *st = s->streams[i];
4297 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4298 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4299 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4306 if (mov->nb_meta_tmcd) {
4307 /* Initialize the tmcd tracks */
4308 for (i = 0; i < s->nb_streams; i++) {
4309 AVStream *st = s->streams[i];
4312 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4314 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4317 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4326 if (mov->flags & FF_MOV_FLAG_ISML)
4327 mov_write_isml_manifest(pb, mov);
4329 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4330 mov_write_moov_tag(pb, mov, s);
4340 static int get_moov_size(AVFormatContext *s)
4343 AVIOContext *moov_buf;
4344 MOVMuxContext *mov = s->priv_data;
4346 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4348 mov_write_moov_tag(moov_buf, mov, s);
4349 return ffio_close_null_buf(moov_buf);
4353 * This function gets the moov size if moved to the top of the file: the chunk
4354 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4355 * entries) when the moov is moved to the beginning, so the size of the moov
4356 * would change. It also updates the chunk offset tables.
4358 static int compute_moov_size(AVFormatContext *s)
4360 int i, moov_size, moov_size2;
4361 MOVMuxContext *mov = s->priv_data;
4363 moov_size = get_moov_size(s);
4367 for (i = 0; i < mov->nb_streams; i++)
4368 mov->tracks[i].data_offset += moov_size;
4370 moov_size2 = get_moov_size(s);
4374 /* if the size changed, we just switched from stco to co64 and need to
4375 * update the offsets */
4376 if (moov_size2 != moov_size)
4377 for (i = 0; i < mov->nb_streams; i++)
4378 mov->tracks[i].data_offset += moov_size2 - moov_size;
4383 static int shift_data(AVFormatContext *s)
4385 int ret = 0, moov_size;
4386 MOVMuxContext *mov = s->priv_data;
4387 int64_t pos, pos_end = avio_tell(s->pb);
4388 uint8_t *buf, *read_buf[2];
4389 int read_buf_id = 0;
4391 AVIOContext *read_pb;
4393 moov_size = compute_moov_size(s);
4397 buf = av_malloc(moov_size * 2);
4399 return AVERROR(ENOMEM);
4401 read_buf[1] = buf + moov_size;
4403 /* Shift the data: the AVIO context of the output can only be used for
4404 * writing, so we re-open the same output, but for reading. It also avoids
4405 * a read/seek/write/seek back and forth. */
4407 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4409 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4410 "the second pass (faststart)\n", s->filename);
4414 /* mark the end of the shift to up to the last data we wrote, and get ready
4416 pos_end = avio_tell(s->pb);
4417 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4419 /* start reading at where the new moov will be placed */
4420 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4421 pos = avio_tell(read_pb);
4423 #define READ_BLOCK do { \
4424 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4428 /* shift data by chunk of at most moov_size */
4433 n = read_size[read_buf_id];
4436 avio_write(s->pb, read_buf[read_buf_id], n);
4438 } while (pos < pos_end);
4439 avio_close(read_pb);
4446 static int mov_write_trailer(AVFormatContext *s)
4448 MOVMuxContext *mov = s->priv_data;
4449 AVIOContext *pb = s->pb;
4455 * Before actually writing the trailer, make sure that there are no
4456 * dangling subtitles, that need a terminating sample.
4458 for (i = 0; i < mov->nb_streams; i++) {
4459 MOVTrack *trk = &mov->tracks[i];
4460 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4461 !trk->last_sample_is_subtitle_end) {
4462 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4463 trk->last_sample_is_subtitle_end = 1;
4467 // If there were no chapters when the header was written, but there
4468 // are chapters now, write them in the trailer. This only works
4469 // when we are not doing fragments.
4470 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4471 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4472 mov->chapter_track = mov->nb_streams++;
4473 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4478 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4479 moov_pos = avio_tell(pb);
4481 /* Write size of mdat tag */
4482 if (mov->mdat_size + 8 <= UINT32_MAX) {
4483 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4484 avio_wb32(pb, mov->mdat_size + 8);
4486 /* overwrite 'wide' placeholder atom */
4487 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4488 /* special value: real atom size will be 64 bit value after
4491 ffio_wfourcc(pb, "mdat");
4492 avio_wb64(pb, mov->mdat_size + 16);
4494 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4496 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4497 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4498 res = shift_data(s);
4500 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4501 mov_write_moov_tag(pb, mov, s);
4503 } else if (mov->reserved_moov_size > 0) {
4505 mov_write_moov_tag(pb, mov, s);
4506 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4508 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4511 avio_wb32(pb, size);
4512 ffio_wfourcc(pb, "free");
4513 ffio_fill(pb, 0, size - 8);
4514 avio_seek(pb, moov_pos, SEEK_SET);
4516 mov_write_moov_tag(pb, mov, s);
4519 mov_flush_fragment(s);
4520 mov_write_mfra_tag(pb, mov);
4523 for (i = 0; i < mov->nb_streams; i++) {
4524 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4525 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4526 int64_t off = avio_tell(pb);
4528 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4529 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4530 avio_write(pb, buf, 7);
4531 avio_seek(pb, off, SEEK_SET);
4542 #if CONFIG_MOV_MUXER
4544 AVOutputFormat ff_mov_muxer = {
4546 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4547 .extensions = "mov",
4548 .priv_data_size = sizeof(MOVMuxContext),
4549 .audio_codec = AV_CODEC_ID_AAC,
4550 .video_codec = CONFIG_LIBX264_ENCODER ?
4551 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4552 .write_header = mov_write_header,
4553 .write_packet = mov_write_packet,
4554 .write_trailer = mov_write_trailer,
4555 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4556 .codec_tag = (const AVCodecTag* const []){
4557 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4559 .priv_class = &mov_muxer_class,
4562 #if CONFIG_TGP_MUXER
4564 AVOutputFormat ff_tgp_muxer = {
4566 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4567 .extensions = "3gp",
4568 .priv_data_size = sizeof(MOVMuxContext),
4569 .audio_codec = AV_CODEC_ID_AMR_NB,
4570 .video_codec = AV_CODEC_ID_H263,
4571 .write_header = mov_write_header,
4572 .write_packet = mov_write_packet,
4573 .write_trailer = mov_write_trailer,
4574 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4575 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4576 .priv_class = &tgp_muxer_class,
4579 #if CONFIG_MP4_MUXER
4581 AVOutputFormat ff_mp4_muxer = {
4583 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4584 .mime_type = "application/mp4",
4585 .extensions = "mp4",
4586 .priv_data_size = sizeof(MOVMuxContext),
4587 .audio_codec = AV_CODEC_ID_AAC,
4588 .video_codec = CONFIG_LIBX264_ENCODER ?
4589 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4590 .write_header = mov_write_header,
4591 .write_packet = mov_write_packet,
4592 .write_trailer = mov_write_trailer,
4593 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4594 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4595 .priv_class = &mp4_muxer_class,
4598 #if CONFIG_PSP_MUXER
4600 AVOutputFormat ff_psp_muxer = {
4602 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4603 .extensions = "mp4,psp",
4604 .priv_data_size = sizeof(MOVMuxContext),
4605 .audio_codec = AV_CODEC_ID_AAC,
4606 .video_codec = CONFIG_LIBX264_ENCODER ?
4607 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4608 .write_header = mov_write_header,
4609 .write_packet = mov_write_packet,
4610 .write_trailer = mov_write_trailer,
4611 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4612 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4613 .priv_class = &psp_muxer_class,
4616 #if CONFIG_TG2_MUXER
4618 AVOutputFormat ff_tg2_muxer = {
4620 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4621 .extensions = "3g2",
4622 .priv_data_size = sizeof(MOVMuxContext),
4623 .audio_codec = AV_CODEC_ID_AMR_NB,
4624 .video_codec = AV_CODEC_ID_H263,
4625 .write_header = mov_write_header,
4626 .write_packet = mov_write_packet,
4627 .write_trailer = mov_write_trailer,
4628 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4629 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4630 .priv_class = &tg2_muxer_class,
4633 #if CONFIG_IPOD_MUXER
4635 AVOutputFormat ff_ipod_muxer = {
4637 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4638 .mime_type = "application/mp4",
4639 .extensions = "m4v,m4a",
4640 .priv_data_size = sizeof(MOVMuxContext),
4641 .audio_codec = AV_CODEC_ID_AAC,
4642 .video_codec = AV_CODEC_ID_H264,
4643 .write_header = mov_write_header,
4644 .write_packet = mov_write_packet,
4645 .write_trailer = mov_write_trailer,
4646 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4647 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4648 .priv_class = &ipod_muxer_class,
4651 #if CONFIG_ISMV_MUXER
4653 AVOutputFormat ff_ismv_muxer = {
4655 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4656 .mime_type = "application/mp4",
4657 .extensions = "ismv,isma",
4658 .priv_data_size = sizeof(MOVMuxContext),
4659 .audio_codec = AV_CODEC_ID_AAC,
4660 .video_codec = AV_CODEC_ID_H264,
4661 .write_header = mov_write_header,
4662 .write_packet = mov_write_packet,
4663 .write_trailer = mov_write_trailer,
4664 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4665 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4666 .priv_class = &ismv_muxer_class,
4669 #if CONFIG_F4V_MUXER
4671 AVOutputFormat ff_f4v_muxer = {
4673 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4674 .mime_type = "application/f4v",
4675 .extensions = "f4v",
4676 .priv_data_size = sizeof(MOVMuxContext),
4677 .audio_codec = AV_CODEC_ID_AAC,
4678 .video_codec = AV_CODEC_ID_H264,
4679 .write_header = mov_write_header,
4680 .write_packet = mov_write_packet,
4681 .write_trailer = mov_write_trailer,
4682 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4683 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4684 .priv_class = &f4v_muxer_class,