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.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"
52 static const AVOption options[] = {
53 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "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" },
55 { "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 },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
64 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
65 { "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},
66 { "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},
67 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
72 { "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},
73 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
77 #define MOV_CLASS(flavor)\
78 static const AVClass flavor ## _muxer_class = {\
79 .class_name = #flavor " muxer",\
80 .item_name = av_default_item_name,\
82 .version = LIBAVUTIL_VERSION_INT,\
85 static int get_moov_size(AVFormatContext *s);
87 //FIXME support 64 bit variant with wide placeholders
88 static int64_t update_size(AVIOContext *pb, int64_t pos)
90 int64_t curpos = avio_tell(pb);
91 avio_seek(pb, pos, SEEK_SET);
92 avio_wb32(pb, curpos - pos); /* rewrite size */
93 avio_seek(pb, curpos, SEEK_SET);
98 static int supports_edts(MOVMuxContext *mov)
100 // EDTS with fragments is tricky as we don't know the duration when its written
101 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
104 static int co64_required(const MOVTrack *track)
106 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
111 /* Chunk offset atom */
112 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
115 int mode64 = co64_required(track); // use 32 bit size variant if possible
116 int64_t pos = avio_tell(pb);
117 avio_wb32(pb, 0); /* size */
119 ffio_wfourcc(pb, "co64");
121 ffio_wfourcc(pb, "stco");
122 avio_wb32(pb, 0); /* version & flags */
123 avio_wb32(pb, track->chunkCount); /* entry count */
124 for (i = 0; i < track->entry; i++) {
125 if (!track->cluster[i].chunkNum)
128 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
130 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
132 return update_size(pb, pos);
135 /* Sample size atom */
136 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
139 int i, j, entries = 0, tst = -1, oldtst = -1;
141 int64_t pos = avio_tell(pb);
142 avio_wb32(pb, 0); /* size */
143 ffio_wfourcc(pb, "stsz");
144 avio_wb32(pb, 0); /* version & flags */
146 for (i = 0; i < track->entry; i++) {
147 tst = track->cluster[i].size / track->cluster[i].entries;
148 if (oldtst != -1 && tst != oldtst)
151 entries += track->cluster[i].entries;
153 if (equalChunks && track->entry) {
154 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
155 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
156 avio_wb32(pb, sSize); // sample size
157 avio_wb32(pb, entries); // sample count
159 avio_wb32(pb, 0); // sample size
160 avio_wb32(pb, entries); // sample count
161 for (i = 0; i < track->entry; i++) {
162 for (j = 0; j < track->cluster[i].entries; j++) {
163 avio_wb32(pb, track->cluster[i].size /
164 track->cluster[i].entries);
168 return update_size(pb, pos);
171 /* Sample to chunk atom */
172 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
174 int index = 0, oldval = -1, i;
175 int64_t entryPos, curpos;
177 int64_t pos = avio_tell(pb);
178 avio_wb32(pb, 0); /* size */
179 ffio_wfourcc(pb, "stsc");
180 avio_wb32(pb, 0); // version & flags
181 entryPos = avio_tell(pb);
182 avio_wb32(pb, track->chunkCount); // entry count
183 for (i = 0; i < track->entry; i++) {
184 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
185 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
186 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
187 avio_wb32(pb, 0x1); // sample description index
188 oldval = track->cluster[i].samples_in_chunk;
192 curpos = avio_tell(pb);
193 avio_seek(pb, entryPos, SEEK_SET);
194 avio_wb32(pb, index); // rewrite size
195 avio_seek(pb, curpos, SEEK_SET);
197 return update_size(pb, pos);
200 /* Sync sample atom */
201 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
203 int64_t curpos, entryPos;
205 int64_t pos = avio_tell(pb);
206 avio_wb32(pb, 0); // size
207 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
208 avio_wb32(pb, 0); // version & flags
209 entryPos = avio_tell(pb);
210 avio_wb32(pb, track->entry); // entry count
211 for (i = 0; i < track->entry; i++) {
212 if (track->cluster[i].flags & flag) {
213 avio_wb32(pb, i + 1);
217 curpos = avio_tell(pb);
218 avio_seek(pb, entryPos, SEEK_SET);
219 avio_wb32(pb, index); // rewrite size
220 avio_seek(pb, curpos, SEEK_SET);
221 return update_size(pb, pos);
224 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
226 avio_wb32(pb, 0x11); /* size */
227 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
228 else ffio_wfourcc(pb, "damr");
229 ffio_wfourcc(pb, "FFMP");
230 avio_w8(pb, 0); /* decoder version */
232 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
233 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
234 avio_w8(pb, 0x01); /* Frames per sample */
238 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
243 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
245 if (track->vos_len < 7)
249 ffio_wfourcc(pb, "dac3");
251 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
252 fscod = get_bits(&gbc, 2);
253 frmsizecod = get_bits(&gbc, 6);
254 bsid = get_bits(&gbc, 5);
255 bsmod = get_bits(&gbc, 3);
256 acmod = get_bits(&gbc, 3);
258 skip_bits(&gbc, 2); // dsurmod
260 if ((acmod & 1) && acmod != 1)
261 skip_bits(&gbc, 2); // cmixlev
263 skip_bits(&gbc, 2); // surmixlev
265 lfeon = get_bits1(&gbc);
267 init_put_bits(&pbc, buf, sizeof(buf));
268 put_bits(&pbc, 2, fscod);
269 put_bits(&pbc, 5, bsid);
270 put_bits(&pbc, 3, bsmod);
271 put_bits(&pbc, 3, acmod);
272 put_bits(&pbc, 1, lfeon);
273 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
274 put_bits(&pbc, 5, 0); // reserved
276 flush_put_bits(&pbc);
277 avio_write(pb, buf, sizeof(buf));
283 * This function writes extradata "as is".
284 * Extradata must be formatted like a valid atom (with size and tag).
286 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
288 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
289 return track->enc->extradata_size;
292 static int mov_write_enda_tag(AVIOContext *pb)
295 ffio_wfourcc(pb, "enda");
296 avio_wb16(pb, 1); /* little endian */
300 static int mov_write_enda_tag_be(AVIOContext *pb)
303 ffio_wfourcc(pb, "enda");
304 avio_wb16(pb, 0); /* big endian */
308 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
313 avio_w8(pb, (size >> (7 * i)) | 0x80);
314 avio_w8(pb, size & 0x7F);
317 static unsigned compute_avg_bitrate(MOVTrack *track)
321 if (!track->track_duration)
323 for (i = 0; i < track->entry; i++)
324 size += track->cluster[i].size;
325 return size * 8 * track->timescale / track->track_duration;
328 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
330 int64_t pos = avio_tell(pb);
331 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
332 unsigned avg_bitrate;
334 avio_wb32(pb, 0); // size
335 ffio_wfourcc(pb, "esds");
336 avio_wb32(pb, 0); // Version
339 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
340 avio_wb16(pb, track->track_id);
341 avio_w8(pb, 0x00); // flags (= no flags)
343 // DecoderConfig descriptor
344 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
346 // Object type indication
347 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
348 track->enc->codec_id == AV_CODEC_ID_MP3) &&
349 track->enc->sample_rate > 24000)
350 avio_w8(pb, 0x6B); // 11172-3
352 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
354 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
355 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
356 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
357 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
358 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
359 avio_w8(pb, 0x15); // flags (= Audiostream)
361 avio_w8(pb, 0x11); // flags (= Visualstream)
363 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
365 avg_bitrate = compute_avg_bitrate(track);
366 // maxbitrate (FIXME should be max rate in any 1 sec window)
367 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
368 avio_wb32(pb, avg_bitrate);
370 if (track->vos_len) {
371 // DecoderSpecific info descriptor
372 put_descr(pb, 0x05, track->vos_len);
373 avio_write(pb, track->vos_data, track->vos_len);
377 put_descr(pb, 0x06, 1);
379 return update_size(pb, pos);
382 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
384 return codec_id == AV_CODEC_ID_PCM_S24LE ||
385 codec_id == AV_CODEC_ID_PCM_S32LE ||
386 codec_id == AV_CODEC_ID_PCM_F32LE ||
387 codec_id == AV_CODEC_ID_PCM_F64LE;
390 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
392 return codec_id == AV_CODEC_ID_PCM_S24BE ||
393 codec_id == AV_CODEC_ID_PCM_S32BE ||
394 codec_id == AV_CODEC_ID_PCM_F32BE ||
395 codec_id == AV_CODEC_ID_PCM_F64BE;
398 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
400 int64_t pos = avio_tell(pb);
402 avio_wl32(pb, track->tag); // store it byteswapped
403 track->enc->codec_tag = av_bswap16(track->tag >> 16);
404 ff_put_wav_header(pb, track->enc, 0);
405 return update_size(pb, pos);
408 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
410 int64_t pos = avio_tell(pb);
412 ffio_wfourcc(pb, "wfex");
413 ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);
414 return update_size(pb, pos);
417 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
419 uint32_t layout_tag, bitmap;
420 int64_t pos = avio_tell(pb);
422 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
423 track->enc->channel_layout,
426 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
427 "lack of channel information\n");
431 avio_wb32(pb, 0); // Size
432 ffio_wfourcc(pb, "chan"); // Type
433 avio_w8(pb, 0); // Version
434 avio_wb24(pb, 0); // Flags
435 avio_wb32(pb, layout_tag); // mChannelLayoutTag
436 avio_wb32(pb, bitmap); // mChannelBitmap
437 avio_wb32(pb, 0); // mNumberChannelDescriptions
439 return update_size(pb, pos);
442 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
444 int64_t pos = avio_tell(pb);
446 avio_wb32(pb, 0); /* size */
447 ffio_wfourcc(pb, "wave");
449 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
450 avio_wb32(pb, 12); /* size */
451 ffio_wfourcc(pb, "frma");
452 avio_wl32(pb, track->tag);
455 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
456 /* useless atom needed by mplayer, ipod, not needed by quicktime */
457 avio_wb32(pb, 12); /* size */
458 ffio_wfourcc(pb, "mp4a");
460 mov_write_esds_tag(pb, track);
461 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
462 mov_write_enda_tag(pb);
463 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
464 mov_write_enda_tag_be(pb);
465 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
466 mov_write_amr_tag(pb, track);
467 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
468 mov_write_ac3_tag(pb, track);
469 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
470 track->enc->codec_id == AV_CODEC_ID_QDM2) {
471 mov_write_extradata_tag(pb, track);
472 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
473 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
474 mov_write_ms_tag(pb, track);
477 avio_wb32(pb, 8); /* size */
478 avio_wb32(pb, 0); /* null tag */
480 return update_size(pb, pos);
483 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
486 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
487 int unescaped_size, seq_found = 0;
488 int level = 0, interlace = 0;
489 int packet_seq = track->vc1_info.packet_seq;
490 int packet_entry = track->vc1_info.packet_entry;
491 int slices = track->vc1_info.slices;
494 if (track->start_dts == AV_NOPTS_VALUE) {
495 /* No packets written yet, vc1_info isn't authoritative yet. */
496 /* Assume inline sequence and entry headers. This will be
497 * overwritten at the end if the file is seekable. */
498 packet_seq = packet_entry = 1;
501 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
503 return AVERROR(ENOMEM);
504 start = find_next_marker(track->vos_data, end);
505 for (next = start; next < end; start = next) {
508 next = find_next_marker(start + 4, end);
509 size = next - start - 4;
512 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
513 init_get_bits(&gb, unescaped, 8 * unescaped_size);
514 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
515 int profile = get_bits(&gb, 2);
516 if (profile != PROFILE_ADVANCED) {
518 return AVERROR(ENOSYS);
521 level = get_bits(&gb, 3);
522 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
524 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
525 skip_bits(&gb, 1); /* broadcast */
526 interlace = get_bits1(&gb);
527 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
532 return AVERROR(ENOSYS);
535 init_put_bits(&pbc, buf, 7);
536 /* VC1DecSpecStruc */
537 put_bits(&pbc, 4, 12); /* profile - advanced */
538 put_bits(&pbc, 3, level);
539 put_bits(&pbc, 1, 0); /* reserved */
540 /* VC1AdvDecSpecStruc */
541 put_bits(&pbc, 3, level);
542 put_bits(&pbc, 1, 0); /* cbr */
543 put_bits(&pbc, 6, 0); /* reserved */
544 put_bits(&pbc, 1, !interlace); /* no interlace */
545 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
546 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
547 put_bits(&pbc, 1, !slices); /* no slice code */
548 put_bits(&pbc, 1, 0); /* no bframe */
549 put_bits(&pbc, 1, 0); /* reserved */
550 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
551 flush_put_bits(&pbc);
558 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
560 uint8_t buf[7] = { 0 };
563 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
566 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
567 ffio_wfourcc(pb, "dvc1");
568 track->vc1_info.struct_offset = avio_tell(pb);
569 avio_write(pb, buf, sizeof(buf));
570 avio_write(pb, track->vos_data, track->vos_len);
575 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
577 avio_wb32(pb, track->vos_len + 8);
578 ffio_wfourcc(pb, "glbl");
579 avio_write(pb, track->vos_data, track->vos_len);
580 return 8 + track->vos_len;
584 * Compute flags for 'lpcm' tag.
585 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
587 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
590 case AV_CODEC_ID_PCM_F32BE:
591 case AV_CODEC_ID_PCM_F64BE:
593 case AV_CODEC_ID_PCM_F32LE:
594 case AV_CODEC_ID_PCM_F64LE:
596 case AV_CODEC_ID_PCM_U8:
598 case AV_CODEC_ID_PCM_S16BE:
599 case AV_CODEC_ID_PCM_S24BE:
600 case AV_CODEC_ID_PCM_S32BE:
602 case AV_CODEC_ID_PCM_S8:
603 case AV_CODEC_ID_PCM_S16LE:
604 case AV_CODEC_ID_PCM_S24LE:
605 case AV_CODEC_ID_PCM_S32LE:
612 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
616 if (cluster_idx >= track->entry)
619 if (cluster_idx + 1 == track->entry)
620 next_dts = track->track_duration + track->start_dts;
622 next_dts = track->cluster[cluster_idx + 1].dts;
624 next_dts -= track->cluster[cluster_idx].dts;
626 av_assert0(next_dts >= 0);
627 av_assert0(next_dts <= INT_MAX);
632 static int get_samples_per_packet(MOVTrack *track)
634 int i, first_duration;
636 // return track->enc->frame_size;
638 /* use 1 for raw PCM */
639 if (!track->audio_vbr)
642 /* check to see if duration is constant for all clusters */
645 first_duration = get_cluster_duration(track, 0);
646 for (i = 1; i < track->entry; i++) {
647 if (get_cluster_duration(track, i) != first_duration)
650 return first_duration;
653 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
655 int64_t pos = avio_tell(pb);
657 uint32_t tag = track->tag;
659 if (track->mode == MODE_MOV) {
660 if (track->timescale > UINT16_MAX) {
661 if (mov_get_lpcm_flags(track->enc->codec_id))
662 tag = AV_RL32("lpcm");
664 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
665 mov_pcm_be_gt16(track->enc->codec_id) ||
666 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
667 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
668 track->enc->codec_id == AV_CODEC_ID_QDM2) {
673 avio_wb32(pb, 0); /* size */
674 avio_wl32(pb, tag); // store it byteswapped
675 avio_wb32(pb, 0); /* Reserved */
676 avio_wb16(pb, 0); /* Reserved */
677 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
679 /* SoundDescription */
680 avio_wb16(pb, version); /* Version */
681 avio_wb16(pb, 0); /* Revision level */
682 avio_wb32(pb, 0); /* Reserved */
687 avio_wb16(pb, 0xfffe);
689 avio_wb32(pb, 0x00010000);
691 avio_wb64(pb, av_double2int(track->enc->sample_rate));
692 avio_wb32(pb, track->enc->channels);
693 avio_wb32(pb, 0x7F000000);
694 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
695 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
696 avio_wb32(pb, track->sample_size);
697 avio_wb32(pb, get_samples_per_packet(track));
699 if (track->mode == MODE_MOV) {
700 avio_wb16(pb, track->enc->channels);
701 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
702 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
703 avio_wb16(pb, 8); /* bits per sample */
706 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
707 } else { /* reserved for mp4/3gp */
713 avio_wb16(pb, 0); /* packet size (= 0) */
714 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
715 track->enc->sample_rate : 0);
716 avio_wb16(pb, 0); /* Reserved */
719 if (version == 1) { /* SoundDescription V1 extended info */
720 if (mov_pcm_le_gt16(track->enc->codec_id) ||
721 mov_pcm_be_gt16(track->enc->codec_id))
722 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
724 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
725 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
726 avio_wb32(pb, track->sample_size); /* Bytes per frame */
727 avio_wb32(pb, 2); /* Bytes per sample */
730 if (track->mode == MODE_MOV &&
731 (track->enc->codec_id == AV_CODEC_ID_AAC ||
732 track->enc->codec_id == AV_CODEC_ID_AC3 ||
733 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
734 track->enc->codec_id == AV_CODEC_ID_ALAC ||
735 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
736 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
737 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
738 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
739 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
740 mov_write_wave_tag(pb, track);
741 else if (track->tag == MKTAG('m','p','4','a'))
742 mov_write_esds_tag(pb, track);
743 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
744 mov_write_amr_tag(pb, track);
745 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
746 mov_write_ac3_tag(pb, track);
747 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
748 mov_write_extradata_tag(pb, track);
749 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
750 mov_write_wfex_tag(pb, track);
751 else if (track->vos_len > 0)
752 mov_write_glbl_tag(pb, track);
754 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
755 mov_write_chan_tag(pb, track);
757 return update_size(pb, pos);
760 static int mov_write_d263_tag(AVIOContext *pb)
762 avio_wb32(pb, 0xf); /* size */
763 ffio_wfourcc(pb, "d263");
764 ffio_wfourcc(pb, "FFMP");
765 avio_w8(pb, 0); /* decoder version */
766 /* FIXME use AVCodecContext level/profile, when encoder will set values */
767 avio_w8(pb, 0xa); /* level */
768 avio_w8(pb, 0); /* profile */
772 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
774 int64_t pos = avio_tell(pb);
777 ffio_wfourcc(pb, "avcC");
778 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
779 return update_size(pb, pos);
782 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
784 int64_t pos = avio_tell(pb);
787 ffio_wfourcc(pb, "hvcC");
788 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
789 return update_size(pb, pos);
792 /* also used by all avid codecs (dv, imx, meridien) and their variants */
793 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
796 avio_wb32(pb, 24); /* size */
797 ffio_wfourcc(pb, "ACLR");
798 ffio_wfourcc(pb, "ACLR");
799 ffio_wfourcc(pb, "0001");
800 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
801 avio_wb32(pb, 0); /* unknown */
803 avio_wb32(pb, 24); /* size */
804 ffio_wfourcc(pb, "APRG");
805 ffio_wfourcc(pb, "APRG");
806 ffio_wfourcc(pb, "0001");
807 avio_wb32(pb, 1); /* unknown */
808 avio_wb32(pb, 0); /* unknown */
810 avio_wb32(pb, 120); /* size */
811 ffio_wfourcc(pb, "ARES");
812 ffio_wfourcc(pb, "ARES");
813 ffio_wfourcc(pb, "0001");
814 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
815 avio_wb32(pb, track->enc->width);
816 /* values below are based on samples created with quicktime and avid codecs */
817 if (track->vos_data[5] & 2) { // interlaced
818 avio_wb32(pb, track->enc->height / 2);
819 avio_wb32(pb, 2); /* unknown */
820 avio_wb32(pb, 0); /* unknown */
821 avio_wb32(pb, 4); /* unknown */
823 avio_wb32(pb, track->enc->height);
824 avio_wb32(pb, 1); /* unknown */
825 avio_wb32(pb, 0); /* unknown */
826 if (track->enc->height == 1080)
827 avio_wb32(pb, 5); /* unknown */
829 avio_wb32(pb, 6); /* unknown */
832 for (i = 0; i < 10; i++)
835 /* extra padding for stsd needed */
840 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
842 int tag = track->enc->codec_tag;
844 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
847 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
848 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
849 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
850 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
851 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
852 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
853 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
854 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
855 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
860 static const AVCodecTag codec_ipod_tags[] = {
861 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
862 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
863 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
864 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
865 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
866 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
867 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
868 { AV_CODEC_ID_NONE, 0 },
871 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
873 int tag = track->enc->codec_tag;
875 // keep original tag for subs, ipod supports both formats
876 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
877 (tag == MKTAG('t', 'x', '3', 'g') ||
878 tag == MKTAG('t', 'e', 'x', 't'))))
879 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
881 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
882 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
883 "Quicktime/Ipod might not play the file\n");
888 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
892 if (track->enc->width == 720) { /* SD */
893 if (track->enc->height == 480) { /* NTSC */
894 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
895 else tag = MKTAG('d','v','c',' ');
896 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
897 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
898 else tag = MKTAG('d','v','p','p');
899 } else if (track->enc->height == 720) { /* HD 720 line */
900 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
901 else tag = MKTAG('d','v','h','p');
902 } else if (track->enc->height == 1080) { /* HD 1080 line */
903 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
904 else tag = MKTAG('d','v','h','6');
906 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
913 static AVRational find_fps(AVFormatContext *s, AVStream *st)
915 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
916 /* if the codec time base makes no sense, try to fallback on stream frame rate */
917 if (av_timecode_check_frame_rate(rate) < 0) {
918 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
919 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
920 rate = st->avg_frame_rate;
926 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
928 int tag = track->enc->codec_tag;
929 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
930 AVStream *st = track->st;
931 int rate = av_q2d(find_fps(s, st));
934 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
936 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
937 if (track->enc->width == 1280 && track->enc->height == 720) {
939 if (rate == 24) tag = MKTAG('x','d','v','4');
940 else if (rate == 25) tag = MKTAG('x','d','v','5');
941 else if (rate == 30) tag = MKTAG('x','d','v','1');
942 else if (rate == 50) tag = MKTAG('x','d','v','a');
943 else if (rate == 60) tag = MKTAG('x','d','v','9');
945 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
947 if (rate == 24) tag = MKTAG('x','d','v','6');
948 else if (rate == 25) tag = MKTAG('x','d','v','7');
949 else if (rate == 30) tag = MKTAG('x','d','v','8');
951 if (rate == 25) tag = MKTAG('x','d','v','3');
952 else if (rate == 30) tag = MKTAG('x','d','v','2');
954 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
956 if (rate == 24) tag = MKTAG('x','d','v','d');
957 else if (rate == 25) tag = MKTAG('x','d','v','e');
958 else if (rate == 30) tag = MKTAG('x','d','v','f');
960 if (rate == 25) tag = MKTAG('x','d','v','c');
961 else if (rate == 30) tag = MKTAG('x','d','v','b');
964 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
965 if (track->enc->width == 1280 && track->enc->height == 720) {
967 if (rate == 24) tag = MKTAG('x','d','5','4');
968 else if (rate == 25) tag = MKTAG('x','d','5','5');
969 else if (rate == 30) tag = MKTAG('x','d','5','1');
970 else if (rate == 50) tag = MKTAG('x','d','5','a');
971 else if (rate == 60) tag = MKTAG('x','d','5','9');
973 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
975 if (rate == 24) tag = MKTAG('x','d','5','d');
976 else if (rate == 25) tag = MKTAG('x','d','5','e');
977 else if (rate == 30) tag = MKTAG('x','d','5','f');
979 if (rate == 25) tag = MKTAG('x','d','5','c');
980 else if (rate == 30) tag = MKTAG('x','d','5','b');
988 static const struct {
989 enum AVPixelFormat pix_fmt;
992 } mov_pix_fmt_tags[] = {
993 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
994 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
995 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
996 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
997 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
998 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
999 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1000 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1001 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1002 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1003 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1004 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1005 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1006 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1007 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1010 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1012 int tag = track->enc->codec_tag;
1014 enum AVPixelFormat pix_fmt;
1016 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1017 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1018 tag = mov_pix_fmt_tags[i].tag;
1019 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1020 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1025 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1026 track->enc->bits_per_coded_sample);
1027 if (tag == MKTAG('r','a','w',' ') &&
1028 track->enc->pix_fmt != pix_fmt &&
1029 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1030 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1031 av_get_pix_fmt_name(track->enc->pix_fmt));
1035 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1037 int tag = track->enc->codec_tag;
1039 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1040 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1041 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1042 track->enc->codec_id == AV_CODEC_ID_H263 ||
1043 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1044 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1045 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1046 tag = mov_get_dv_codec_tag(s, track);
1047 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1048 tag = mov_get_rawvideo_codec_tag(s, track);
1049 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1050 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1051 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1052 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1053 if (!tag) { // if no mac fcc found, try with Microsoft tags
1054 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1056 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1057 "the file may be unplayable!\n");
1059 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1060 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1061 if (!tag) { // if no mac fcc found, try with Microsoft tags
1062 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1064 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1065 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1066 "the file may be unplayable!\n");
1069 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1070 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1076 static const AVCodecTag codec_3gp_tags[] = {
1077 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1078 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1079 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1080 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1081 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1082 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1083 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1084 { AV_CODEC_ID_NONE, 0 },
1087 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1088 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1089 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1090 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1091 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1092 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1093 { AV_CODEC_ID_NONE, 0 },
1096 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1100 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1101 tag = mp4_get_codec_tag(s, track);
1102 else if (track->mode == MODE_ISM) {
1103 tag = mp4_get_codec_tag(s, track);
1104 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1105 tag = MKTAG('w', 'm', 'a', ' ');
1106 } else if (track->mode == MODE_IPOD)
1107 tag = ipod_get_codec_tag(s, track);
1108 else if (track->mode & MODE_3GP)
1109 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1110 else if (track->mode == MODE_F4V)
1111 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1113 tag = mov_get_codec_tag(s, track);
1118 /** Write uuid atom.
1119 * Needed to make file play in iPods running newest firmware
1120 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1122 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1125 ffio_wfourcc(pb, "uuid");
1126 avio_wb32(pb, 0x6b6840f2);
1127 avio_wb32(pb, 0x5f244fc5);
1128 avio_wb32(pb, 0xba39a51b);
1129 avio_wb32(pb, 0xcf0323f3);
1134 static const uint16_t fiel_data[] = {
1135 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1138 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1140 unsigned mov_field_order = 0;
1141 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1142 mov_field_order = fiel_data[track->enc->field_order];
1146 ffio_wfourcc(pb, "fiel");
1147 avio_wb16(pb, mov_field_order);
1151 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1153 int64_t pos = avio_tell(pb);
1154 avio_wb32(pb, 0); /* size */
1155 avio_wl32(pb, track->tag); // store it byteswapped
1156 avio_wb32(pb, 0); /* Reserved */
1157 avio_wb16(pb, 0); /* Reserved */
1158 avio_wb16(pb, 1); /* Data-reference index */
1160 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1161 mov_write_esds_tag(pb, track);
1162 else if (track->enc->extradata_size)
1163 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1165 return update_size(pb, pos);
1168 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1171 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1172 track->enc->sample_aspect_ratio.den, INT_MAX);
1175 ffio_wfourcc(pb, "pasp");
1176 avio_wb32(pb, sar.num);
1177 avio_wb32(pb, sar.den);
1181 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1183 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1184 || (track->enc->width == 1440 && track->enc->height == 1080)
1185 || (track->enc->width == 1920 && track->enc->height == 1080);
1187 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name) {
1188 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1189 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1190 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1191 AVStream *st = track->st;
1192 int rate = av_q2d(find_fps(NULL, st));
1193 av_strlcatf(compressor_name, len, "XDCAM");
1194 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1195 av_strlcatf(compressor_name, len, " HD422");
1196 } else if(track->enc->width == 1440) {
1197 av_strlcatf(compressor_name, len, " HD");
1199 av_strlcatf(compressor_name, len, " EX");
1201 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1203 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1207 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1209 int64_t pos = avio_tell(pb);
1210 char compressor_name[32] = { 0 };
1212 avio_wb32(pb, 0); /* size */
1213 avio_wl32(pb, track->tag); // store it byteswapped
1214 avio_wb32(pb, 0); /* Reserved */
1215 avio_wb16(pb, 0); /* Reserved */
1216 avio_wb16(pb, 1); /* Data-reference index */
1218 avio_wb16(pb, 0); /* Codec stream version */
1219 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1220 if (track->mode == MODE_MOV) {
1221 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1222 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1223 avio_wb32(pb, 0); /* Temporal Quality */
1224 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1226 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1227 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1230 avio_wb32(pb, 0); /* Reserved */
1231 avio_wb32(pb, 0); /* Reserved */
1232 avio_wb32(pb, 0); /* Reserved */
1234 avio_wb16(pb, track->enc->width); /* Video width */
1235 avio_wb16(pb, track->height); /* Video height */
1236 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1237 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1238 avio_wb32(pb, 0); /* Data size (= 0) */
1239 avio_wb16(pb, 1); /* Frame count (= 1) */
1241 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1242 find_compressor(compressor_name, 32, track);
1243 avio_w8(pb, strlen(compressor_name));
1244 avio_write(pb, compressor_name, 31);
1246 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1247 avio_wb16(pb, track->enc->bits_per_coded_sample);
1249 avio_wb16(pb, 0x18); /* Reserved */
1250 avio_wb16(pb, 0xffff); /* Reserved */
1251 if (track->tag == MKTAG('m','p','4','v'))
1252 mov_write_esds_tag(pb, track);
1253 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1254 mov_write_d263_tag(pb);
1255 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1256 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1257 mov_write_extradata_tag(pb, track);
1259 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1260 mov_write_avid_tag(pb, track);
1261 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1262 mov_write_hvcc_tag(pb, track);
1263 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1264 mov_write_avcc_tag(pb, track);
1265 if (track->mode == MODE_IPOD)
1266 mov_write_uuid_tag_ipod(pb);
1267 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1268 mov_write_dvc1_tag(pb, track);
1269 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1270 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1271 /* Don't write any potential extradata here - the cropping
1272 * is signalled via the normal width/height fields. */
1273 } else if (track->vos_len > 0)
1274 mov_write_glbl_tag(pb, track);
1276 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1277 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1278 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1279 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1280 mov_write_fiel_tag(pb, track);
1282 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1283 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1284 mov_write_pasp_tag(pb, track);
1287 return update_size(pb, pos);
1290 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1292 int64_t pos = avio_tell(pb);
1293 avio_wb32(pb, 0); /* size */
1294 ffio_wfourcc(pb, "rtp ");
1295 avio_wb32(pb, 0); /* Reserved */
1296 avio_wb16(pb, 0); /* Reserved */
1297 avio_wb16(pb, 1); /* Data-reference index */
1299 avio_wb16(pb, 1); /* Hint track version */
1300 avio_wb16(pb, 1); /* Highest compatible version */
1301 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1303 avio_wb32(pb, 12); /* size */
1304 ffio_wfourcc(pb, "tims");
1305 avio_wb32(pb, track->timescale);
1307 return update_size(pb, pos);
1310 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1312 int64_t pos = avio_tell(pb);
1314 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1315 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1317 if (nb_frames > 255) {
1318 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1319 return AVERROR(EINVAL);
1322 avio_wb32(pb, 0); /* size */
1323 ffio_wfourcc(pb, "tmcd"); /* Data format */
1324 avio_wb32(pb, 0); /* Reserved */
1325 avio_wb32(pb, 1); /* Data reference index */
1326 avio_wb32(pb, 0); /* Flags */
1327 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1328 avio_wb32(pb, track->timescale); /* Timescale */
1329 avio_wb32(pb, frame_duration); /* Frame duration */
1330 avio_w8(pb, nb_frames); /* Number of frames */
1331 avio_wb24(pb, 0); /* Reserved */
1332 /* TODO: source reference string */
1335 avio_wb32(pb, 0); /* size */
1336 ffio_wfourcc(pb, "tmcd"); /* Data format */
1337 avio_wb32(pb, 0); /* Reserved */
1338 avio_wb32(pb, 1); /* Data reference index */
1339 if (track->enc->extradata_size)
1340 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1342 return update_size(pb, pos);
1345 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1347 int64_t pos = avio_tell(pb);
1348 avio_wb32(pb, 0); /* size */
1349 ffio_wfourcc(pb, "stsd");
1350 avio_wb32(pb, 0); /* version & flags */
1351 avio_wb32(pb, 1); /* entry count */
1352 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1353 mov_write_video_tag(pb, track);
1354 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1355 mov_write_audio_tag(pb, track);
1356 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1357 mov_write_subtitle_tag(pb, track);
1358 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1359 mov_write_rtp_tag(pb, track);
1360 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1361 mov_write_tmcd_tag(pb, track);
1362 return update_size(pb, pos);
1365 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1367 MOVStts *ctts_entries;
1368 uint32_t entries = 0;
1372 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1373 ctts_entries[0].count = 1;
1374 ctts_entries[0].duration = track->cluster[0].cts;
1375 for (i = 1; i < track->entry; i++) {
1376 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1377 ctts_entries[entries].count++; /* compress */
1380 ctts_entries[entries].duration = track->cluster[i].cts;
1381 ctts_entries[entries].count = 1;
1384 entries++; /* last one */
1385 atom_size = 16 + (entries * 8);
1386 avio_wb32(pb, atom_size); /* size */
1387 ffio_wfourcc(pb, "ctts");
1388 avio_wb32(pb, 0); /* version & flags */
1389 avio_wb32(pb, entries); /* entry count */
1390 for (i = 0; i < entries; i++) {
1391 avio_wb32(pb, ctts_entries[i].count);
1392 avio_wb32(pb, ctts_entries[i].duration);
1394 av_free(ctts_entries);
1398 /* Time to sample atom */
1399 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1401 MOVStts *stts_entries;
1402 uint32_t entries = -1;
1406 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1407 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1408 stts_entries[0].count = track->sample_count;
1409 stts_entries[0].duration = 1;
1412 stts_entries = track->entry ?
1413 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1415 for (i = 0; i < track->entry; i++) {
1416 int duration = get_cluster_duration(track, i);
1417 if (i && duration == stts_entries[entries].duration) {
1418 stts_entries[entries].count++; /* compress */
1421 stts_entries[entries].duration = duration;
1422 stts_entries[entries].count = 1;
1425 entries++; /* last one */
1427 atom_size = 16 + (entries * 8);
1428 avio_wb32(pb, atom_size); /* size */
1429 ffio_wfourcc(pb, "stts");
1430 avio_wb32(pb, 0); /* version & flags */
1431 avio_wb32(pb, entries); /* entry count */
1432 for (i = 0; i < entries; i++) {
1433 avio_wb32(pb, stts_entries[i].count);
1434 avio_wb32(pb, stts_entries[i].duration);
1436 av_free(stts_entries);
1440 static int mov_write_dref_tag(AVIOContext *pb)
1442 avio_wb32(pb, 28); /* size */
1443 ffio_wfourcc(pb, "dref");
1444 avio_wb32(pb, 0); /* version & flags */
1445 avio_wb32(pb, 1); /* entry count */
1447 avio_wb32(pb, 0xc); /* size */
1448 //FIXME add the alis and rsrc atom
1449 ffio_wfourcc(pb, "url ");
1450 avio_wb32(pb, 1); /* version & flags */
1455 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1457 int64_t pos = avio_tell(pb);
1458 avio_wb32(pb, 0); /* size */
1459 ffio_wfourcc(pb, "stbl");
1460 mov_write_stsd_tag(pb, track);
1461 mov_write_stts_tag(pb, track);
1462 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1463 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1464 track->has_keyframes && track->has_keyframes < track->entry)
1465 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1466 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1467 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1468 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1469 track->flags & MOV_TRACK_CTTS)
1470 mov_write_ctts_tag(pb, track);
1471 mov_write_stsc_tag(pb, track);
1472 mov_write_stsz_tag(pb, track);
1473 mov_write_stco_tag(pb, track);
1474 return update_size(pb, pos);
1477 static int mov_write_dinf_tag(AVIOContext *pb)
1479 int64_t pos = avio_tell(pb);
1480 avio_wb32(pb, 0); /* size */
1481 ffio_wfourcc(pb, "dinf");
1482 mov_write_dref_tag(pb);
1483 return update_size(pb, pos);
1486 static int mov_write_nmhd_tag(AVIOContext *pb)
1489 ffio_wfourcc(pb, "nmhd");
1494 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1496 int64_t pos = avio_tell(pb);
1497 const char *font = "Lucida Grande";
1498 avio_wb32(pb, 0); /* size */
1499 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1500 avio_wb32(pb, 0); /* version & flags */
1501 avio_wb16(pb, 0); /* text font */
1502 avio_wb16(pb, 0); /* text face */
1503 avio_wb16(pb, 12); /* text size */
1504 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1505 avio_wb16(pb, 0x0000); /* text color (red) */
1506 avio_wb16(pb, 0x0000); /* text color (green) */
1507 avio_wb16(pb, 0x0000); /* text color (blue) */
1508 avio_wb16(pb, 0xffff); /* background color (red) */
1509 avio_wb16(pb, 0xffff); /* background color (green) */
1510 avio_wb16(pb, 0xffff); /* background color (blue) */
1511 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1512 avio_write(pb, font, strlen(font)); /* font name */
1513 return update_size(pb, pos);
1516 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1518 int64_t pos = avio_tell(pb);
1519 avio_wb32(pb, 0); /* size */
1520 ffio_wfourcc(pb, "gmhd");
1521 avio_wb32(pb, 0x18); /* gmin size */
1522 ffio_wfourcc(pb, "gmin");/* generic media info */
1523 avio_wb32(pb, 0); /* version & flags */
1524 avio_wb16(pb, 0x40); /* graphics mode = */
1525 avio_wb16(pb, 0x8000); /* opColor (r?) */
1526 avio_wb16(pb, 0x8000); /* opColor (g?) */
1527 avio_wb16(pb, 0x8000); /* opColor (b?) */
1528 avio_wb16(pb, 0); /* balance */
1529 avio_wb16(pb, 0); /* reserved */
1532 * This special text atom is required for
1533 * Apple Quicktime chapters. The contents
1534 * don't appear to be documented, so the
1535 * bytes are copied verbatim.
1537 if (track->tag != MKTAG('c','6','0','8')) {
1538 avio_wb32(pb, 0x2C); /* size */
1539 ffio_wfourcc(pb, "text");
1540 avio_wb16(pb, 0x01);
1541 avio_wb32(pb, 0x00);
1542 avio_wb32(pb, 0x00);
1543 avio_wb32(pb, 0x00);
1544 avio_wb32(pb, 0x01);
1545 avio_wb32(pb, 0x00);
1546 avio_wb32(pb, 0x00);
1547 avio_wb32(pb, 0x00);
1548 avio_wb32(pb, 0x00004000);
1549 avio_wb16(pb, 0x0000);
1552 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1553 int64_t tmcd_pos = avio_tell(pb);
1554 avio_wb32(pb, 0); /* size */
1555 ffio_wfourcc(pb, "tmcd");
1556 mov_write_tcmi_tag(pb, track);
1557 update_size(pb, tmcd_pos);
1559 return update_size(pb, pos);
1562 static int mov_write_smhd_tag(AVIOContext *pb)
1564 avio_wb32(pb, 16); /* size */
1565 ffio_wfourcc(pb, "smhd");
1566 avio_wb32(pb, 0); /* version & flags */
1567 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1568 avio_wb16(pb, 0); /* reserved */
1572 static int mov_write_vmhd_tag(AVIOContext *pb)
1574 avio_wb32(pb, 0x14); /* size (always 0x14) */
1575 ffio_wfourcc(pb, "vmhd");
1576 avio_wb32(pb, 0x01); /* version & flags */
1577 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1581 static int is_clcp_track(MOVTrack *track)
1583 return track->tag == MKTAG('c','7','0','8') ||
1584 track->tag == MKTAG('c','6','0','8');
1587 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1589 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1590 int64_t pos = avio_tell(pb);
1594 descr = "DataHandler";
1597 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1598 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1600 descr = "VideoHandler";
1601 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1603 descr = "SoundHandler";
1604 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1605 if (is_clcp_track(track)) {
1607 descr = "ClosedCaptionHandler";
1609 if (track->tag == MKTAG('t','x','3','g')) {
1611 } else if (track->tag == MKTAG('m','p','4','s')) {
1616 descr = "SubtitleHandler";
1618 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1620 descr = "HintHandler";
1621 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1623 descr = "TimeCodeHandler";
1626 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1627 track->enc->codec_tag);
1629 av_log(track->enc, AV_LOG_WARNING,
1630 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1631 tag_buf, track->enc->codec_tag);
1635 avio_wb32(pb, 0); /* size */
1636 ffio_wfourcc(pb, "hdlr");
1637 avio_wb32(pb, 0); /* Version & flags */
1638 avio_write(pb, hdlr, 4); /* handler */
1639 ffio_wfourcc(pb, hdlr_type); /* handler type */
1640 avio_wb32(pb, 0); /* reserved */
1641 avio_wb32(pb, 0); /* reserved */
1642 avio_wb32(pb, 0); /* reserved */
1643 if (!track || track->mode == MODE_MOV)
1644 avio_w8(pb, strlen(descr)); /* pascal string */
1645 avio_write(pb, descr, strlen(descr)); /* handler description */
1646 if (track && track->mode != MODE_MOV)
1647 avio_w8(pb, 0); /* c string */
1648 return update_size(pb, pos);
1651 static int mov_write_hmhd_tag(AVIOContext *pb)
1653 /* This atom must be present, but leaving the values at zero
1654 * seems harmless. */
1655 avio_wb32(pb, 28); /* size */
1656 ffio_wfourcc(pb, "hmhd");
1657 avio_wb32(pb, 0); /* version, flags */
1658 avio_wb16(pb, 0); /* maxPDUsize */
1659 avio_wb16(pb, 0); /* avgPDUsize */
1660 avio_wb32(pb, 0); /* maxbitrate */
1661 avio_wb32(pb, 0); /* avgbitrate */
1662 avio_wb32(pb, 0); /* reserved */
1666 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1668 int64_t pos = avio_tell(pb);
1669 avio_wb32(pb, 0); /* size */
1670 ffio_wfourcc(pb, "minf");
1671 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1672 mov_write_vmhd_tag(pb);
1673 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1674 mov_write_smhd_tag(pb);
1675 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1676 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1677 mov_write_gmhd_tag(pb, track);
1679 mov_write_nmhd_tag(pb);
1681 } else if (track->tag == MKTAG('r','t','p',' ')) {
1682 mov_write_hmhd_tag(pb);
1683 } else if (track->tag == MKTAG('t','m','c','d')) {
1684 mov_write_gmhd_tag(pb, track);
1686 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1687 mov_write_hdlr_tag(pb, NULL);
1688 mov_write_dinf_tag(pb);
1689 mov_write_stbl_tag(pb, track);
1690 return update_size(pb, pos);
1693 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1695 int version = track->track_duration < INT32_MAX ? 0 : 1;
1697 if (track->mode == MODE_ISM)
1700 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1701 ffio_wfourcc(pb, "mdhd");
1702 avio_w8(pb, version);
1703 avio_wb24(pb, 0); /* flags */
1705 avio_wb64(pb, track->time);
1706 avio_wb64(pb, track->time);
1708 avio_wb32(pb, track->time); /* creation time */
1709 avio_wb32(pb, track->time); /* modification time */
1711 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1713 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1715 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1716 avio_wb16(pb, track->language); /* language */
1717 avio_wb16(pb, 0); /* reserved (quality) */
1719 if (version != 0 && track->mode == MODE_MOV) {
1720 av_log(NULL, AV_LOG_ERROR,
1721 "FATAL error, file duration too long for timebase, this file will not be\n"
1722 "playable with quicktime. Choose a different timebase or a different\n"
1723 "container format\n");
1729 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1731 int64_t pos = avio_tell(pb);
1732 avio_wb32(pb, 0); /* size */
1733 ffio_wfourcc(pb, "mdia");
1734 mov_write_mdhd_tag(pb, track);
1735 mov_write_hdlr_tag(pb, track);
1736 mov_write_minf_tag(pb, track);
1737 return update_size(pb, pos);
1740 /* transformation matrix
1744 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1745 int16_t d, int16_t tx, int16_t ty)
1747 avio_wb32(pb, a << 16); /* 16.16 format */
1748 avio_wb32(pb, b << 16); /* 16.16 format */
1749 avio_wb32(pb, 0); /* u in 2.30 format */
1750 avio_wb32(pb, c << 16); /* 16.16 format */
1751 avio_wb32(pb, d << 16); /* 16.16 format */
1752 avio_wb32(pb, 0); /* v in 2.30 format */
1753 avio_wb32(pb, tx << 16); /* 16.16 format */
1754 avio_wb32(pb, ty << 16); /* 16.16 format */
1755 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1758 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1760 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1761 track->timescale, AV_ROUND_UP);
1762 int version = duration < INT32_MAX ? 0 : 1;
1765 if (track->mode == MODE_ISM)
1768 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1769 ffio_wfourcc(pb, "tkhd");
1770 avio_w8(pb, version);
1771 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1772 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1773 MOV_TKHD_FLAG_IN_MOVIE);
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->track_id); /* track-id */
1782 avio_wb32(pb, 0); /* reserved */
1784 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1786 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1788 avio_wb32(pb, 0); /* reserved */
1789 avio_wb32(pb, 0); /* reserved */
1790 avio_wb16(pb, 0); /* layer */
1791 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1792 /* Volume, only for audio */
1793 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1794 avio_wb16(pb, 0x0100);
1797 avio_wb16(pb, 0); /* reserved */
1799 /* Matrix structure */
1800 if (st && st->metadata) {
1801 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1802 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1804 if (rotation == 90) {
1805 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1806 } else if (rotation == 180) {
1807 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1808 } else if (rotation == 270) {
1809 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1811 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1813 /* Track width and height, for visual only */
1814 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1815 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1816 if (track->mode == MODE_MOV) {
1817 avio_wb32(pb, track->enc->width << 16);
1818 avio_wb32(pb, track->height << 16);
1820 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1821 if (!sample_aspect_ratio || track->height != track->enc->height)
1822 sample_aspect_ratio = 1;
1823 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1824 avio_wb32(pb, track->height * 0x10000);
1833 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1835 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1836 track->enc->sample_aspect_ratio.den);
1838 int64_t pos = avio_tell(pb);
1840 avio_wb32(pb, 0); /* size */
1841 ffio_wfourcc(pb, "tapt");
1844 ffio_wfourcc(pb, "clef");
1846 avio_wb32(pb, width << 16);
1847 avio_wb32(pb, track->enc->height << 16);
1850 ffio_wfourcc(pb, "prof");
1852 avio_wb32(pb, width << 16);
1853 avio_wb32(pb, track->enc->height << 16);
1856 ffio_wfourcc(pb, "enof");
1858 avio_wb32(pb, track->enc->width << 16);
1859 avio_wb32(pb, track->enc->height << 16);
1861 return update_size(pb, pos);
1864 // This box seems important for the psp playback ... without it the movie seems to hang
1865 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1867 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1868 track->timescale, AV_ROUND_UP);
1869 int version = duration < INT32_MAX ? 0 : 1;
1870 int entry_size, entry_count, size;
1871 int64_t delay, start_ct = track->cluster[0].cts;
1872 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1873 track->timescale, AV_ROUND_DOWN);
1874 version |= delay < INT32_MAX ? 0 : 1;
1876 entry_size = (version == 1) ? 20 : 12;
1877 entry_count = 1 + (delay > 0);
1878 size = 24 + entry_count * entry_size;
1880 /* write the atom data */
1881 avio_wb32(pb, size);
1882 ffio_wfourcc(pb, "edts");
1883 avio_wb32(pb, size - 8);
1884 ffio_wfourcc(pb, "elst");
1885 avio_w8(pb, version);
1886 avio_wb24(pb, 0); /* flags */
1888 avio_wb32(pb, entry_count);
1889 if (delay > 0) { /* add an empty edit to delay presentation */
1891 avio_wb64(pb, delay);
1894 avio_wb32(pb, delay);
1897 avio_wb32(pb, 0x00010000);
1899 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1900 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1906 avio_wb64(pb, duration);
1907 avio_wb64(pb, start_ct);
1909 avio_wb32(pb, duration);
1910 avio_wb32(pb, start_ct);
1912 avio_wb32(pb, 0x00010000);
1916 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1918 avio_wb32(pb, 20); // size
1919 ffio_wfourcc(pb, "tref");
1920 avio_wb32(pb, 12); // size (subatom)
1921 avio_wl32(pb, track->tref_tag);
1922 avio_wb32(pb, track->tref_id);
1926 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1927 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1929 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1930 ffio_wfourcc(pb, "uuid");
1931 ffio_wfourcc(pb, "USMT");
1932 avio_wb32(pb, 0x21d24fce);
1933 avio_wb32(pb, 0xbb88695c);
1934 avio_wb32(pb, 0xfac9c740);
1935 avio_wb32(pb, 0x1c); // another size here!
1936 ffio_wfourcc(pb, "MTDT");
1937 avio_wb32(pb, 0x00010012);
1938 avio_wb32(pb, 0x0a);
1939 avio_wb32(pb, 0x55c40000);
1945 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1947 AVFormatContext *ctx = track->rtp_ctx;
1948 char buf[1000] = "";
1951 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1952 NULL, NULL, 0, 0, ctx);
1953 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1956 avio_wb32(pb, len + 24);
1957 ffio_wfourcc(pb, "udta");
1958 avio_wb32(pb, len + 16);
1959 ffio_wfourcc(pb, "hnti");
1960 avio_wb32(pb, len + 8);
1961 ffio_wfourcc(pb, "sdp ");
1962 avio_write(pb, buf, len);
1966 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1967 MOVTrack *track, AVStream *st)
1969 int64_t pos = avio_tell(pb);
1970 avio_wb32(pb, 0); /* size */
1971 ffio_wfourcc(pb, "trak");
1972 mov_write_tkhd_tag(pb, track, st);
1973 if (supports_edts(mov))
1974 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1975 if (track->tref_tag)
1976 mov_write_tref_tag(pb, track);
1977 mov_write_mdia_tag(pb, track);
1978 if (track->mode == MODE_PSP)
1979 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1980 if (track->tag == MKTAG('r','t','p',' '))
1981 mov_write_udta_sdp(pb, track);
1982 if (track->mode == MODE_MOV) {
1983 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1984 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1985 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
1986 mov_write_tapt_tag(pb, track);
1989 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
1990 mov_write_tapt_tag(pb, track);
1993 return update_size(pb, pos);
1996 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1998 int i, has_audio = 0, has_video = 0;
1999 int64_t pos = avio_tell(pb);
2000 int audio_profile = mov->iods_audio_profile;
2001 int video_profile = mov->iods_video_profile;
2002 for (i = 0; i < mov->nb_streams; i++) {
2003 if (mov->tracks[i].entry > 0) {
2004 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2005 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2008 if (audio_profile < 0)
2009 audio_profile = 0xFF - has_audio;
2010 if (video_profile < 0)
2011 video_profile = 0xFF - has_video;
2012 avio_wb32(pb, 0x0); /* size */
2013 ffio_wfourcc(pb, "iods");
2014 avio_wb32(pb, 0); /* version & flags */
2015 put_descr(pb, 0x10, 7);
2016 avio_wb16(pb, 0x004f);
2019 avio_w8(pb, audio_profile);
2020 avio_w8(pb, video_profile);
2022 return update_size(pb, pos);
2025 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2027 avio_wb32(pb, 0x20); /* size */
2028 ffio_wfourcc(pb, "trex");
2029 avio_wb32(pb, 0); /* version & flags */
2030 avio_wb32(pb, track->track_id); /* track ID */
2031 avio_wb32(pb, 1); /* default sample description index */
2032 avio_wb32(pb, 0); /* default sample duration */
2033 avio_wb32(pb, 0); /* default sample size */
2034 avio_wb32(pb, 0); /* default sample flags */
2038 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2040 int64_t pos = avio_tell(pb);
2042 avio_wb32(pb, 0x0); /* size */
2043 ffio_wfourcc(pb, "mvex");
2044 for (i = 0; i < mov->nb_streams; i++)
2045 mov_write_trex_tag(pb, &mov->tracks[i]);
2046 return update_size(pb, pos);
2049 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2051 int max_track_id = 1, i;
2052 int64_t max_track_len_temp, max_track_len = 0;
2055 for (i = 0; i < mov->nb_streams; i++) {
2056 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2057 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2059 mov->tracks[i].timescale,
2061 if (max_track_len < max_track_len_temp)
2062 max_track_len = max_track_len_temp;
2063 if (max_track_id < mov->tracks[i].track_id)
2064 max_track_id = mov->tracks[i].track_id;
2068 version = max_track_len < UINT32_MAX ? 0 : 1;
2069 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2070 ffio_wfourcc(pb, "mvhd");
2071 avio_w8(pb, version);
2072 avio_wb24(pb, 0); /* flags */
2074 avio_wb64(pb, mov->time);
2075 avio_wb64(pb, mov->time);
2077 avio_wb32(pb, mov->time); /* creation time */
2078 avio_wb32(pb, mov->time); /* modification time */
2080 avio_wb32(pb, MOV_TIMESCALE);
2081 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2083 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2084 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2085 avio_wb16(pb, 0); /* reserved */
2086 avio_wb32(pb, 0); /* reserved */
2087 avio_wb32(pb, 0); /* reserved */
2089 /* Matrix structure */
2090 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2092 avio_wb32(pb, 0); /* reserved (preview time) */
2093 avio_wb32(pb, 0); /* reserved (preview duration) */
2094 avio_wb32(pb, 0); /* reserved (poster time) */
2095 avio_wb32(pb, 0); /* reserved (selection time) */
2096 avio_wb32(pb, 0); /* reserved (selection duration) */
2097 avio_wb32(pb, 0); /* reserved (current time) */
2098 avio_wb32(pb, max_track_id + 1); /* Next track id */
2102 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2105 avio_wb32(pb, 33); /* size */
2106 ffio_wfourcc(pb, "hdlr");
2109 ffio_wfourcc(pb, "mdir");
2110 ffio_wfourcc(pb, "appl");
2117 /* helper function to write a data tag with the specified string as data */
2118 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2121 int size = 16 + strlen(data);
2122 avio_wb32(pb, size); /* size */
2123 ffio_wfourcc(pb, "data");
2126 avio_write(pb, data, strlen(data));
2130 lang = ff_mov_iso639_to_lang("und", 1);
2131 avio_wb16(pb, strlen(data)); /* string length */
2132 avio_wb16(pb, lang);
2133 avio_write(pb, data, strlen(data));
2134 return strlen(data) + 4;
2138 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2139 const char *value, int lang, int long_style)
2142 if (value && value[0]) {
2143 int64_t pos = avio_tell(pb);
2144 avio_wb32(pb, 0); /* size */
2145 ffio_wfourcc(pb, name);
2146 mov_write_string_data_tag(pb, value, lang, long_style);
2147 size = update_size(pb, pos);
2152 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2153 const char *name, const char *tag,
2156 int l, lang = 0, len, len2;
2157 AVDictionaryEntry *t, *t2 = NULL;
2160 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2163 len = strlen(t->key);
2164 snprintf(tag2, sizeof(tag2), "%s-", tag);
2165 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2166 len2 = strlen(t2->key);
2167 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2168 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2173 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2176 /* iTunes bpm number */
2177 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2179 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2180 int size = 0, tmpo = t ? atoi(t->value) : 0;
2183 avio_wb32(pb, size);
2184 ffio_wfourcc(pb, "tmpo");
2185 avio_wb32(pb, size-8); /* size */
2186 ffio_wfourcc(pb, "data");
2187 avio_wb32(pb, 0x15); //type specifier
2189 avio_wb16(pb, tmpo); // data
2194 /* iTunes track or disc number */
2195 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2196 AVFormatContext *s, int disc)
2198 AVDictionaryEntry *t = av_dict_get(s->metadata,
2199 disc ? "disc" : "track",
2201 int size = 0, track = t ? atoi(t->value) : 0;
2204 char *slash = strchr(t->value, '/');
2206 tracks = atoi(slash + 1);
2207 avio_wb32(pb, 32); /* size */
2208 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2209 avio_wb32(pb, 24); /* size */
2210 ffio_wfourcc(pb, "data");
2211 avio_wb32(pb, 0); // 8 bytes empty
2213 avio_wb16(pb, 0); // empty
2214 avio_wb16(pb, track); // track / disc number
2215 avio_wb16(pb, tracks); // total track / disc number
2216 avio_wb16(pb, 0); // empty
2222 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2223 const char *name, const char *tag,
2226 AVDictionaryEntry *t = NULL;
2228 int size = 24 + len;
2230 if (len != 1 && len != 4)
2233 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2235 num = atoi(t->value);
2237 avio_wb32(pb, size);
2238 ffio_wfourcc(pb, name);
2239 avio_wb32(pb, size - 8);
2240 ffio_wfourcc(pb, "data");
2241 avio_wb32(pb, 0x15);
2243 if (len==4) avio_wb32(pb, num);
2244 else avio_w8 (pb, num);
2249 /* iTunes meta data list */
2250 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2253 int64_t pos = avio_tell(pb);
2254 avio_wb32(pb, 0); /* size */
2255 ffio_wfourcc(pb, "ilst");
2256 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2257 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2258 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2259 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2260 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2261 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2263 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2264 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2265 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2266 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2267 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2268 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2269 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2270 mov_write_string_metadata(s, pb, "desc", "description",1);
2271 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2272 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2273 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2274 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2275 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2276 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2277 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2278 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2279 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2280 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2281 mov_write_trkn_tag(pb, mov, s, 0); // track number
2282 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2283 mov_write_tmpo_tag(pb, s);
2284 return update_size(pb, pos);
2287 /* iTunes meta data tag */
2288 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2292 int64_t pos = avio_tell(pb);
2293 avio_wb32(pb, 0); /* size */
2294 ffio_wfourcc(pb, "meta");
2296 mov_write_itunes_hdlr_tag(pb, mov, s);
2297 mov_write_ilst_tag(pb, mov, s);
2298 size = update_size(pb, pos);
2302 static int utf8len(const uint8_t *b)
2307 GET_UTF8(val, *b++, return -1;)
2313 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2317 GET_UTF8(val, *b++, return -1;)
2320 avio_wb16(pb, 0x00);
2324 static uint16_t language_code(const char *str)
2326 return (((str[0] - 0x60) & 0x1F) << 10) +
2327 (((str[1] - 0x60) & 0x1F) << 5) +
2328 (( str[2] - 0x60) & 0x1F);
2331 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2332 const char *tag, const char *str)
2334 int64_t pos = avio_tell(pb);
2335 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2336 if (!t || !utf8len(t->value))
2338 avio_wb32(pb, 0); /* size */
2339 ffio_wfourcc(pb, tag); /* type */
2340 avio_wb32(pb, 0); /* version + flags */
2341 if (!strcmp(tag, "yrrc"))
2342 avio_wb16(pb, atoi(t->value));
2344 avio_wb16(pb, language_code("eng")); /* language */
2345 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2346 if (!strcmp(tag, "albm") &&
2347 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2348 avio_w8(pb, atoi(t->value));
2350 return update_size(pb, pos);
2353 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2355 int64_t pos = avio_tell(pb);
2356 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2358 avio_wb32(pb, 0); // size
2359 ffio_wfourcc(pb, "chpl");
2360 avio_wb32(pb, 0x01000000); // version + flags
2361 avio_wb32(pb, 0); // unknown
2362 avio_w8(pb, nb_chapters);
2364 for (i = 0; i < nb_chapters; i++) {
2365 AVChapter *c = s->chapters[i];
2366 AVDictionaryEntry *t;
2367 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2369 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2370 int len = FFMIN(strlen(t->value), 255);
2372 avio_write(pb, t->value, len);
2376 return update_size(pb, pos);
2379 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2382 AVIOContext *pb_buf;
2386 ret = avio_open_dyn_buf(&pb_buf);
2390 if (mov->mode & MODE_3GP) {
2391 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2392 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2393 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2394 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2395 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2396 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2397 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2398 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2399 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2400 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2401 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2402 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2403 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2404 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2405 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2406 // currently ignored by mov.c
2407 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2408 // add support for libquicktime, this atom is also actually read by mov.c
2409 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2410 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2411 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2413 /* iTunes meta data */
2414 mov_write_meta_tag(pb_buf, mov, s);
2418 mov_write_chpl_tag(pb_buf, s);
2420 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2421 avio_wb32(pb, size + 8);
2422 ffio_wfourcc(pb, "udta");
2423 avio_write(pb, buf, size);
2430 static void mov_write_psp_udta_tag(AVIOContext *pb,
2431 const char *str, const char *lang, int type)
2433 int len = utf8len(str) + 1;
2436 avio_wb16(pb, len * 2 + 10); /* size */
2437 avio_wb32(pb, type); /* type */
2438 avio_wb16(pb, language_code(lang)); /* language */
2439 avio_wb16(pb, 0x01); /* ? */
2440 ascii_to_wc(pb, str);
2443 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2445 MOVMuxContext *mov = s->priv_data;
2446 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2450 pos = avio_tell(pb);
2451 avio_wb32(pb, 0); /* size placeholder*/
2452 ffio_wfourcc(pb, "uuid");
2453 ffio_wfourcc(pb, "USMT");
2454 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2455 avio_wb32(pb, 0xbb88695c);
2456 avio_wb32(pb, 0xfac9c740);
2458 pos2 = avio_tell(pb);
2459 avio_wb32(pb, 0); /* size placeholder*/
2460 ffio_wfourcc(pb, "MTDT");
2464 avio_wb16(pb, 0x0C); /* size */
2465 avio_wb32(pb, 0x0B); /* type */
2466 avio_wb16(pb, language_code("und")); /* language */
2467 avio_wb16(pb, 0x0); /* ? */
2468 avio_wb16(pb, 0x021C); /* data */
2471 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2472 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2473 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2475 update_size(pb, pos2);
2476 return update_size(pb, pos);
2482 static void build_chunks(MOVTrack *trk)
2485 MOVIentry *chunk = &trk->cluster[0];
2486 uint64_t chunkSize = chunk->size;
2487 chunk->chunkNum = 1;
2488 if (trk->chunkCount)
2490 trk->chunkCount = 1;
2491 for (i = 1; i<trk->entry; i++){
2492 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2493 chunkSize + trk->cluster[i].size < (1<<20)){
2494 chunkSize += trk->cluster[i].size;
2495 chunk->samples_in_chunk += trk->cluster[i].entries;
2497 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2498 chunk=&trk->cluster[i];
2499 chunkSize = chunk->size;
2505 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2509 int64_t pos = avio_tell(pb);
2510 avio_wb32(pb, 0); /* size placeholder*/
2511 ffio_wfourcc(pb, "moov");
2513 for (i = 0; i < mov->nb_streams; i++) {
2514 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2517 mov->tracks[i].time = mov->time;
2518 mov->tracks[i].track_id = i + 1;
2520 if (mov->tracks[i].entry)
2521 build_chunks(&mov->tracks[i]);
2524 if (mov->chapter_track)
2525 for (i = 0; i < s->nb_streams; i++) {
2526 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2527 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2529 for (i = 0; i < mov->nb_streams; i++) {
2530 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2531 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2532 mov->tracks[i].tref_id =
2533 mov->tracks[mov->tracks[i].src_track].track_id;
2536 for (i = 0; i < mov->nb_streams; i++) {
2537 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2538 int src_trk = mov->tracks[i].src_track;
2539 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2540 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2541 //src_trk may have a different timescale than the tmcd track
2542 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2543 mov->tracks[i].timescale,
2544 mov->tracks[src_trk].timescale);
2548 mov_write_mvhd_tag(pb, mov);
2549 if (mov->mode != MODE_MOV && !mov->iods_skip)
2550 mov_write_iods_tag(pb, mov);
2551 for (i = 0; i < mov->nb_streams; i++) {
2552 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2553 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2556 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2557 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2559 if (mov->mode == MODE_PSP)
2560 mov_write_uuidusmt_tag(pb, s);
2562 mov_write_udta_tag(pb, mov, s);
2564 return update_size(pb, pos);
2567 static void param_write_int(AVIOContext *pb, const char *name, int value)
2569 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2572 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2574 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2577 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2580 len = FFMIN(sizeof(buf) / 2 - 1, len);
2581 ff_data_to_hex(buf, value, len, 0);
2582 buf[2 * len] = '\0';
2583 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2586 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2588 int64_t pos = avio_tell(pb);
2590 static const uint8_t uuid[] = {
2591 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2592 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2596 ffio_wfourcc(pb, "uuid");
2597 avio_write(pb, uuid, sizeof(uuid));
2600 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2601 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2602 avio_printf(pb, "<head>\n");
2604 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2606 avio_printf(pb, "</head>\n");
2607 avio_printf(pb, "<body>\n");
2608 avio_printf(pb, "<switch>\n");
2609 for (i = 0; i < mov->nb_streams; i++) {
2610 MOVTrack *track = &mov->tracks[i];
2612 /* track->track_id is initialized in write_moov, and thus isn't known
2614 int track_id = i + 1;
2616 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2618 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2623 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2624 track->enc->bit_rate);
2625 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2626 param_write_int(pb, "trackID", track_id);
2627 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2628 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2630 int size = track->enc->extradata_size;
2631 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2633 param_write_hex(pb, "CodecPrivateData",
2634 ptr ? ptr : track->enc->extradata,
2638 param_write_string(pb, "FourCC", "H264");
2639 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2640 param_write_string(pb, "FourCC", "WVC1");
2641 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2642 track->enc->extradata_size);
2644 param_write_int(pb, "MaxWidth", track->enc->width);
2645 param_write_int(pb, "MaxHeight", track->enc->height);
2646 param_write_int(pb, "DisplayWidth", track->enc->width);
2647 param_write_int(pb, "DisplayHeight", track->enc->height);
2649 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2650 param_write_string(pb, "FourCC", "AACL");
2651 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2652 param_write_string(pb, "FourCC", "WMAP");
2654 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2655 track->enc->extradata_size);
2656 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2657 track->enc->codec_id));
2658 param_write_int(pb, "Channels", track->enc->channels);
2659 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2660 param_write_int(pb, "BitsPerSample", 16);
2661 param_write_int(pb, "PacketSize", track->enc->block_align ?
2662 track->enc->block_align : 4);
2664 avio_printf(pb, "</%s>\n", type);
2666 avio_printf(pb, "</switch>\n");
2667 avio_printf(pb, "</body>\n");
2668 avio_printf(pb, "</smil>\n");
2670 return update_size(pb, pos);
2673 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2676 ffio_wfourcc(pb, "mfhd");
2678 avio_wb32(pb, mov->fragments);
2682 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2683 MOVTrack *track, int64_t moof_offset)
2685 int64_t pos = avio_tell(pb);
2686 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2687 MOV_TFHD_BASE_DATA_OFFSET;
2688 if (!track->entry) {
2689 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2691 flags |= MOV_TFHD_DEFAULT_FLAGS;
2693 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2694 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2696 /* Don't set a default sample size, the silverlight player refuses
2697 * to play files with that set. Don't set a default sample duration,
2698 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2699 * file format says it MUST NOT be set. */
2700 if (track->mode == MODE_ISM)
2701 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2702 MOV_TFHD_BASE_DATA_OFFSET);
2704 avio_wb32(pb, 0); /* size placeholder */
2705 ffio_wfourcc(pb, "tfhd");
2706 avio_w8(pb, 0); /* version */
2707 avio_wb24(pb, flags);
2709 avio_wb32(pb, track->track_id); /* track-id */
2710 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2711 avio_wb64(pb, moof_offset);
2712 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2713 track->default_duration = get_cluster_duration(track, 0);
2714 avio_wb32(pb, track->default_duration);
2716 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2717 track->default_size = track->entry ? track->cluster[0].size : 1;
2718 avio_wb32(pb, track->default_size);
2720 track->default_size = -1;
2722 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2723 track->default_sample_flags =
2724 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2725 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2726 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2727 avio_wb32(pb, track->default_sample_flags);
2730 return update_size(pb, pos);
2733 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2735 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2736 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2739 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2740 MOVTrack *track, int moof_size)
2742 int64_t pos = avio_tell(pb);
2743 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2746 for (i = 0; i < track->entry; i++) {
2747 if (get_cluster_duration(track, i) != track->default_duration)
2748 flags |= MOV_TRUN_SAMPLE_DURATION;
2749 if (track->cluster[i].size != track->default_size)
2750 flags |= MOV_TRUN_SAMPLE_SIZE;
2751 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2752 flags |= MOV_TRUN_SAMPLE_FLAGS;
2754 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2755 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2756 if (track->flags & MOV_TRACK_CTTS)
2757 flags |= MOV_TRUN_SAMPLE_CTS;
2759 avio_wb32(pb, 0); /* size placeholder */
2760 ffio_wfourcc(pb, "trun");
2761 avio_w8(pb, 0); /* version */
2762 avio_wb24(pb, flags);
2764 avio_wb32(pb, track->entry); /* sample count */
2765 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2766 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2767 track->track_id != 1)
2768 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2770 avio_wb32(pb, moof_size + 8 + track->data_offset +
2771 track->cluster[0].pos); /* data offset */
2772 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2773 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2775 for (i = 0; i < track->entry; i++) {
2776 if (flags & MOV_TRUN_SAMPLE_DURATION)
2777 avio_wb32(pb, get_cluster_duration(track, i));
2778 if (flags & MOV_TRUN_SAMPLE_SIZE)
2779 avio_wb32(pb, track->cluster[i].size);
2780 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2781 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2782 if (flags & MOV_TRUN_SAMPLE_CTS)
2783 avio_wb32(pb, track->cluster[i].cts);
2786 return update_size(pb, pos);
2789 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2791 int64_t pos = avio_tell(pb);
2792 static const uint8_t uuid[] = {
2793 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2794 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2797 avio_wb32(pb, 0); /* size placeholder */
2798 ffio_wfourcc(pb, "uuid");
2799 avio_write(pb, uuid, sizeof(uuid));
2802 avio_wb64(pb, track->frag_start);
2803 avio_wb64(pb, track->start_dts + track->track_duration -
2804 track->cluster[0].dts);
2806 return update_size(pb, pos);
2809 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2810 MOVTrack *track, int entry)
2812 int n = track->nb_frag_info - 1 - entry, i;
2813 int size = 8 + 16 + 4 + 1 + 16*n;
2814 static const uint8_t uuid[] = {
2815 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2816 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2822 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2823 avio_wb32(pb, size);
2824 ffio_wfourcc(pb, "uuid");
2825 avio_write(pb, uuid, sizeof(uuid));
2829 for (i = 0; i < n; i++) {
2830 int index = entry + 1 + i;
2831 avio_wb64(pb, track->frag_info[index].time);
2832 avio_wb64(pb, track->frag_info[index].duration);
2834 if (n < mov->ism_lookahead) {
2835 int free_size = 16 * (mov->ism_lookahead - n);
2836 avio_wb32(pb, free_size);
2837 ffio_wfourcc(pb, "free");
2838 ffio_fill(pb, 0, free_size - 8);
2844 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2847 int64_t pos = avio_tell(pb);
2849 for (i = 0; i < mov->ism_lookahead; i++) {
2850 /* Update the tfrf tag for the last ism_lookahead fragments,
2851 * nb_frag_info - 1 is the next fragment to be written. */
2852 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2854 avio_seek(pb, pos, SEEK_SET);
2858 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2859 MOVTrack *track, int64_t moof_offset,
2862 int64_t pos = avio_tell(pb);
2863 avio_wb32(pb, 0); /* size placeholder */
2864 ffio_wfourcc(pb, "traf");
2866 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2867 mov_write_trun_tag(pb, mov, track, moof_size);
2868 if (mov->mode == MODE_ISM) {
2869 mov_write_tfxd_tag(pb, track);
2871 if (mov->ism_lookahead) {
2872 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2874 track->tfrf_offset = avio_tell(pb);
2875 avio_wb32(pb, 8 + size);
2876 ffio_wfourcc(pb, "free");
2877 for (i = 0; i < size; i++)
2882 return update_size(pb, pos);
2885 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2886 int tracks, int moof_size)
2888 int64_t pos = avio_tell(pb);
2891 avio_wb32(pb, 0); /* size placeholder */
2892 ffio_wfourcc(pb, "moof");
2894 mov_write_mfhd_tag(pb, mov);
2895 for (i = 0; i < mov->nb_streams; i++) {
2896 MOVTrack *track = &mov->tracks[i];
2897 if (tracks >= 0 && i != tracks)
2901 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2904 return update_size(pb, pos);
2907 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2909 AVIOContext *avio_buf;
2912 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2914 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2915 moof_size = ffio_close_null_buf(avio_buf);
2916 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2919 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2921 int64_t pos = avio_tell(pb);
2924 avio_wb32(pb, 0); /* size placeholder */
2925 ffio_wfourcc(pb, "tfra");
2926 avio_w8(pb, 1); /* version */
2929 avio_wb32(pb, track->track_id);
2930 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2931 avio_wb32(pb, track->nb_frag_info);
2932 for (i = 0; i < track->nb_frag_info; i++) {
2933 avio_wb64(pb, track->frag_info[i].time);
2934 avio_wb64(pb, track->frag_info[i].offset);
2935 avio_w8(pb, 1); /* traf number */
2936 avio_w8(pb, 1); /* trun number */
2937 avio_w8(pb, 1); /* sample number */
2940 return update_size(pb, pos);
2943 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2945 int64_t pos = avio_tell(pb);
2948 avio_wb32(pb, 0); /* size placeholder */
2949 ffio_wfourcc(pb, "mfra");
2950 /* An empty mfra atom is enough to indicate to the publishing point that
2951 * the stream has ended. */
2952 if (mov->flags & FF_MOV_FLAG_ISML)
2953 return update_size(pb, pos);
2955 for (i = 0; i < mov->nb_streams; i++) {
2956 MOVTrack *track = &mov->tracks[i];
2957 if (track->nb_frag_info)
2958 mov_write_tfra_tag(pb, track);
2962 ffio_wfourcc(pb, "mfro");
2963 avio_wb32(pb, 0); /* version + flags */
2964 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2966 return update_size(pb, pos);
2969 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2971 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2972 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2974 mov->mdat_pos = avio_tell(pb);
2975 avio_wb32(pb, 0); /* size placeholder*/
2976 ffio_wfourcc(pb, "mdat");
2980 /* TODO: This needs to be more general */
2981 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2983 MOVMuxContext *mov = s->priv_data;
2984 int64_t pos = avio_tell(pb);
2985 int has_h264 = 0, has_video = 0;
2989 for (i = 0; i < s->nb_streams; i++) {
2990 AVStream *st = s->streams[i];
2991 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2993 if (st->codec->codec_id == AV_CODEC_ID_H264)
2997 avio_wb32(pb, 0); /* size */
2998 ffio_wfourcc(pb, "ftyp");
3000 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3001 ffio_wfourcc(pb, mov->major_brand);
3002 else if (mov->mode == MODE_3GP) {
3003 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3004 minor = has_h264 ? 0x100 : 0x200;
3005 } else if (mov->mode & MODE_3G2) {
3006 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3007 minor = has_h264 ? 0x20000 : 0x10000;
3008 } else if (mov->mode == MODE_PSP)
3009 ffio_wfourcc(pb, "MSNV");
3010 else if (mov->mode == MODE_MP4)
3011 ffio_wfourcc(pb, "isom");
3012 else if (mov->mode == MODE_IPOD)
3013 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3014 else if (mov->mode == MODE_ISM)
3015 ffio_wfourcc(pb, "isml");
3016 else if (mov->mode == MODE_F4V)
3017 ffio_wfourcc(pb, "f4v ");
3019 ffio_wfourcc(pb, "qt ");
3021 avio_wb32(pb, minor);
3023 if (mov->mode == MODE_MOV)
3024 ffio_wfourcc(pb, "qt ");
3025 else if (mov->mode == MODE_ISM) {
3026 ffio_wfourcc(pb, "piff");
3027 ffio_wfourcc(pb, "iso2");
3029 ffio_wfourcc(pb, "isom");
3030 ffio_wfourcc(pb, "iso2");
3032 ffio_wfourcc(pb, "avc1");
3035 if (mov->mode == MODE_3GP)
3036 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3037 else if (mov->mode & MODE_3G2)
3038 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3039 else if (mov->mode == MODE_PSP)
3040 ffio_wfourcc(pb, "MSNV");
3041 else if (mov->mode == MODE_MP4)
3042 ffio_wfourcc(pb, "mp41");
3043 return update_size(pb, pos);
3046 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3048 AVCodecContext *video_codec = s->streams[0]->codec;
3049 AVCodecContext *audio_codec = s->streams[1]->codec;
3050 int audio_rate = audio_codec->sample_rate;
3051 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
3052 int audio_kbitrate = audio_codec->bit_rate / 1000;
3053 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3055 avio_wb32(pb, 0x94); /* size */
3056 ffio_wfourcc(pb, "uuid");
3057 ffio_wfourcc(pb, "PROF");
3059 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3060 avio_wb32(pb, 0xbb88695c);
3061 avio_wb32(pb, 0xfac9c740);
3063 avio_wb32(pb, 0x0); /* ? */
3064 avio_wb32(pb, 0x3); /* 3 sections ? */
3066 avio_wb32(pb, 0x14); /* size */
3067 ffio_wfourcc(pb, "FPRF");
3068 avio_wb32(pb, 0x0); /* ? */
3069 avio_wb32(pb, 0x0); /* ? */
3070 avio_wb32(pb, 0x0); /* ? */
3072 avio_wb32(pb, 0x2c); /* size */
3073 ffio_wfourcc(pb, "APRF"); /* audio */
3075 avio_wb32(pb, 0x2); /* TrackID */
3076 ffio_wfourcc(pb, "mp4a");
3077 avio_wb32(pb, 0x20f);
3079 avio_wb32(pb, audio_kbitrate);
3080 avio_wb32(pb, audio_kbitrate);
3081 avio_wb32(pb, audio_rate);
3082 avio_wb32(pb, audio_codec->channels);
3084 avio_wb32(pb, 0x34); /* size */
3085 ffio_wfourcc(pb, "VPRF"); /* video */
3087 avio_wb32(pb, 0x1); /* TrackID */
3088 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3089 ffio_wfourcc(pb, "avc1");
3090 avio_wb16(pb, 0x014D);
3091 avio_wb16(pb, 0x0015);
3093 ffio_wfourcc(pb, "mp4v");
3094 avio_wb16(pb, 0x0000);
3095 avio_wb16(pb, 0x0103);
3098 avio_wb32(pb, video_kbitrate);
3099 avio_wb32(pb, video_kbitrate);
3100 avio_wb32(pb, frame_rate);
3101 avio_wb32(pb, frame_rate);
3102 avio_wb16(pb, video_codec->width);
3103 avio_wb16(pb, video_codec->height);
3104 avio_wb32(pb, 0x010001); /* ? */
3107 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3110 int i, closed_gop = 0;
3112 for (i = 0; i < pkt->size - 4; i++) {
3113 c = (c << 8) + pkt->data[i];
3114 if (c == 0x1b8) { // gop
3115 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3116 } else if (c == 0x100) { // pic
3117 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3118 if (!temp_ref || closed_gop) // I picture is not reordered
3119 *flags = MOV_SYNC_SAMPLE;
3121 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3128 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3130 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3131 int seq = 0, entry = 0;
3132 int key = pkt->flags & AV_PKT_FLAG_KEY;
3133 start = find_next_marker(pkt->data, end);
3134 for (next = start; next < end; start = next) {
3135 next = find_next_marker(start + 4, end);
3136 switch (AV_RB32(start)) {
3137 case VC1_CODE_SEQHDR:
3140 case VC1_CODE_ENTRYPOINT:
3143 case VC1_CODE_SLICE:
3144 trk->vc1_info.slices = 1;
3148 if (!trk->entry && !fragment) {
3149 /* First packet in first fragment */
3150 trk->vc1_info.first_packet_seq = seq;
3151 trk->vc1_info.first_packet_entry = entry;
3152 } else if ((seq && !trk->vc1_info.packet_seq) ||
3153 (entry && !trk->vc1_info.packet_entry)) {
3155 for (i = 0; i < trk->entry; i++)
3156 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3157 trk->has_keyframes = 0;
3159 trk->vc1_info.packet_seq = 1;
3161 trk->vc1_info.packet_entry = 1;
3163 /* First fragment */
3164 if ((!seq || trk->vc1_info.first_packet_seq) &&
3165 (!entry || trk->vc1_info.first_packet_entry)) {
3166 /* First packet had the same headers as this one, readd the
3167 * sync sample flag. */
3168 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3169 trk->has_keyframes = 1;
3173 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3175 else if (trk->vc1_info.packet_seq)
3177 else if (trk->vc1_info.packet_entry)
3180 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3181 trk->has_keyframes++;
3185 static int mov_flush_fragment(AVFormatContext *s)
3187 MOVMuxContext *mov = s->priv_data;
3188 int i, first_track = -1;
3189 int64_t mdat_size = 0;
3191 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3194 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3195 int64_t pos = avio_tell(s->pb);
3197 int buf_size, moov_size;
3199 for (i = 0; i < mov->nb_streams; i++)
3200 if (!mov->tracks[i].entry)
3202 /* Don't write the initial moov unless all tracks have data */
3203 if (i < mov->nb_streams)
3206 moov_size = get_moov_size(s);
3207 for (i = 0; i < mov->nb_streams; i++)
3208 mov->tracks[i].data_offset = pos + moov_size + 8;
3210 mov_write_moov_tag(s->pb, mov, s);
3212 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3213 mov->mdat_buf = NULL;
3214 avio_wb32(s->pb, buf_size + 8);
3215 ffio_wfourcc(s->pb, "mdat");
3216 avio_write(s->pb, buf, buf_size);
3221 for (i = 0; i < mov->nb_streams; i++) {
3222 if (mov->tracks[i].entry)
3223 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3224 mov->tracks[i].track_duration -
3225 mov->tracks[i].cluster[0].dts;
3226 mov->tracks[i].entry = 0;
3232 for (i = 0; i < mov->nb_streams; i++) {
3233 MOVTrack *track = &mov->tracks[i];
3234 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3235 track->data_offset = 0;
3237 track->data_offset = mdat_size;
3238 if (!track->mdat_buf)
3240 mdat_size += avio_tell(track->mdat_buf);
3241 if (first_track < 0)
3248 for (i = 0; i < mov->nb_streams; i++) {
3249 MOVTrack *track = &mov->tracks[i];
3250 int buf_size, write_moof = 1, moof_tracks = -1;
3252 int64_t duration = 0;
3255 duration = track->start_dts + track->track_duration -
3256 track->cluster[0].dts;
3257 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3258 if (!track->mdat_buf)
3260 mdat_size = avio_tell(track->mdat_buf);
3263 write_moof = i == first_track;
3267 MOVFragmentInfo *info;
3269 track->nb_frag_info++;
3270 if (track->nb_frag_info >= track->frag_info_capacity) {
3271 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3272 if (av_reallocp_array(&track->frag_info,
3274 sizeof(*track->frag_info)))
3275 return AVERROR(ENOMEM);
3276 track->frag_info_capacity = new_capacity;
3278 info = &track->frag_info[track->nb_frag_info - 1];
3279 info->offset = avio_tell(s->pb);
3280 info->time = mov->tracks[i].frag_start;
3281 info->duration = duration;
3282 mov_write_tfrf_tags(s->pb, mov, track);
3284 mov_write_moof_tag(s->pb, mov, moof_tracks);
3285 info->tfrf_offset = track->tfrf_offset;
3288 avio_wb32(s->pb, mdat_size + 8);
3289 ffio_wfourcc(s->pb, "mdat");
3293 track->frag_start += duration;
3295 if (!track->mdat_buf)
3297 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3298 track->mdat_buf = NULL;
3300 avio_write(s->pb, buf, buf_size);
3310 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3312 MOVMuxContext *mov = s->priv_data;
3313 AVIOContext *pb = s->pb;
3314 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3315 AVCodecContext *enc = trk->enc;
3316 unsigned int samples_in_chunk = 0;
3317 int size = pkt->size;
3318 uint8_t *reformatted_data = NULL;
3321 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3322 if (duration < 0 || duration > INT_MAX) {
3323 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3327 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3328 pkt->pts = AV_NOPTS_VALUE;
3331 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3333 if (mov->fragments > 0) {
3334 if (!trk->mdat_buf) {
3335 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3340 if (!mov->mdat_buf) {
3341 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3348 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3349 /* We must find out how many AMR blocks there are in one packet */
3350 static uint16_t packed_size[16] =
3351 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3354 while (len < size && samples_in_chunk < 100) {
3355 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3358 if (samples_in_chunk > 1) {
3359 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3362 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3363 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3364 samples_in_chunk = enc->frame_size;
3365 } else if (trk->sample_size)
3366 samples_in_chunk = size / trk->sample_size;
3368 samples_in_chunk = 1;
3370 /* copy extradata if it exists */
3371 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3372 trk->vos_len = enc->extradata_size;
3373 trk->vos_data = av_malloc(trk->vos_len);
3374 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3377 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3378 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3379 if (!s->streams[pkt->stream_index]->nb_frames) {
3380 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3381 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3382 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3385 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3387 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3388 /* from x264 or from bytestream h264 */
3389 /* nal reformating needed */
3390 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3391 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3393 avio_write(pb, reformatted_data, size);
3395 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3397 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3398 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3399 /* extradata is Annex B, assume the bitstream is too and convert it */
3400 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3401 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3402 avio_write(pb, reformatted_data, size);
3404 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3407 avio_write(pb, pkt->data, size);
3410 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3411 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3412 /* copy frame to create needed atoms */
3413 trk->vos_len = size;
3414 trk->vos_data = av_malloc(size);
3416 return AVERROR(ENOMEM);
3417 memcpy(trk->vos_data, pkt->data, size);
3420 if (trk->entry >= trk->cluster_capacity) {
3421 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3422 if (av_reallocp_array(&trk->cluster, new_capacity,
3423 sizeof(*trk->cluster)))
3424 return AVERROR(ENOMEM);
3425 trk->cluster_capacity = new_capacity;
3428 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3429 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3430 trk->cluster[trk->entry].chunkNum = 0;
3431 trk->cluster[trk->entry].size = size;
3432 trk->cluster[trk->entry].entries = samples_in_chunk;
3433 trk->cluster[trk->entry].dts = pkt->dts;
3434 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3435 /* First packet of a new fragment. We already wrote the duration
3436 * of the last packet of the previous fragment based on track_duration,
3437 * which might not exactly match our dts. Therefore adjust the dts
3438 * of this packet to be what the previous packets duration implies. */
3439 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3441 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3442 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3444 if (trk->start_dts == AV_NOPTS_VALUE)
3445 trk->start_dts = pkt->dts;
3446 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3447 trk->last_sample_is_subtitle_end = 0;
3449 if (pkt->pts == AV_NOPTS_VALUE) {
3450 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3451 pkt->pts = pkt->dts;
3453 if (pkt->dts != pkt->pts)
3454 trk->flags |= MOV_TRACK_CTTS;
3455 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3456 trk->cluster[trk->entry].flags = 0;
3457 if (enc->codec_id == AV_CODEC_ID_VC1) {
3458 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3459 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3460 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3461 trk->entry > 0) { // force sync sample for the first key frame
3462 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3463 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3464 trk->flags |= MOV_TRACK_STPS;
3466 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3468 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3469 trk->has_keyframes++;
3472 trk->sample_count += samples_in_chunk;
3473 mov->mdat_size += size;
3475 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3476 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3477 reformatted_data, size);
3478 av_free(reformatted_data);
3482 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3484 MOVMuxContext *mov = s->priv_data;
3485 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3486 AVCodecContext *enc = trk->enc;
3487 int64_t frag_duration = 0;
3488 int size = pkt->size;
3491 return 0; /* Discard 0 sized packets */
3493 if (trk->entry && pkt->stream_index < s->nb_streams)
3494 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3495 s->streams[pkt->stream_index]->time_base,
3497 if ((mov->max_fragment_duration &&
3498 frag_duration >= mov->max_fragment_duration) ||
3499 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3500 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3501 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3502 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3503 if (frag_duration >= mov->min_fragment_duration)
3504 mov_flush_fragment(s);
3507 return ff_mov_write_packet(s, pkt);
3510 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3514 uint8_t data[2] = {0};
3517 av_init_packet(&end);
3518 end.size = sizeof(data);
3523 end.stream_index = stream_index;
3525 ret = mov_write_single_packet(s, &end);
3526 av_free_packet(&end);
3531 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3534 mov_flush_fragment(s);
3538 MOVMuxContext *mov = s->priv_data;
3540 if (!pkt->size) return 0; /* Discard 0 sized packets */
3543 * Subtitles require special handling.
3545 * 1) For full complaince, every track must have a sample at
3546 * dts == 0, which is rarely true for subtitles. So, as soon
3547 * as we see any packet with dts > 0, write an empty subtitle
3548 * at dts == 0 for any subtitle track with no samples in it.
3550 * 2) For each subtitle track, check if the current packet's
3551 * dts is past the duration of the last subtitle sample. If
3552 * so, we now need to write an end sample for that subtitle.
3554 * This must be done conditionally to allow for subtitles that
3555 * immediately replace each other, in which case an end sample
3556 * is not needed, and is, in fact, actively harmful.
3558 * 3) See mov_write_trailer for how the final end sample is
3561 for (i = 0; i < mov->nb_streams; i++) {
3562 MOVTrack *trk = &mov->tracks[i];
3565 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3566 trk->track_duration < pkt->dts &&
3567 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3568 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3569 if (ret < 0) return ret;
3570 trk->last_sample_is_subtitle_end = 1;
3574 return mov_write_single_packet(s, pkt);
3578 // QuickTime chapters involve an additional text track with the chapter names
3579 // as samples, and a tref pointing from the other tracks to the chapter one.
3580 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3584 MOVMuxContext *mov = s->priv_data;
3585 MOVTrack *track = &mov->tracks[tracknum];
3586 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3589 track->mode = mov->mode;
3590 track->tag = MKTAG('t','e','x','t');
3591 track->timescale = MOV_TIMESCALE;
3592 track->enc = avcodec_alloc_context3(NULL);
3594 return AVERROR(ENOMEM);
3595 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3597 // These properties are required to make QT recognize the chapter track
3598 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3599 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3600 return AVERROR(ENOMEM);
3601 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3603 if (avio_open_dyn_buf(&pb) >= 0) {
3607 /* Stub header (usually for Quicktime chapter track) */
3609 avio_wb32(pb, 0x01); // displayFlags
3610 avio_w8(pb, 0x00); // horizontal justification
3611 avio_w8(pb, 0x00); // vertical justification
3612 avio_w8(pb, 0x00); // bgColourRed
3613 avio_w8(pb, 0x00); // bgColourGreen
3614 avio_w8(pb, 0x00); // bgColourBlue
3615 avio_w8(pb, 0x00); // bgColourAlpha
3617 avio_wb16(pb, 0x00); // defTextBoxTop
3618 avio_wb16(pb, 0x00); // defTextBoxLeft
3619 avio_wb16(pb, 0x00); // defTextBoxBottom
3620 avio_wb16(pb, 0x00); // defTextBoxRight
3622 avio_wb16(pb, 0x00); // startChar
3623 avio_wb16(pb, 0x00); // endChar
3624 avio_wb16(pb, 0x01); // fontID
3625 avio_w8(pb, 0x00); // fontStyleFlags
3626 avio_w8(pb, 0x00); // fontSize
3627 avio_w8(pb, 0x00); // fgColourRed
3628 avio_w8(pb, 0x00); // fgColourGreen
3629 avio_w8(pb, 0x00); // fgColourBlue
3630 avio_w8(pb, 0x00); // fgColourAlpha
3632 avio_wb32(pb, 0x0D); // box size
3633 ffio_wfourcc(pb, "ftab"); // box atom name
3634 avio_wb16(pb, 0x01); // entry count
3636 avio_wb16(pb, 0x01); // font ID
3637 avio_w8(pb, 0x00); // font name length
3639 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3640 track->enc->extradata = buf;
3641 track->enc->extradata_size = size;
3648 for (i = 0; i < s->nb_chapters; i++) {
3649 AVChapter *c = s->chapters[i];
3650 AVDictionaryEntry *t;
3652 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3653 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3654 pkt.duration = end - pkt.dts;
3656 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3657 len = strlen(t->value);
3659 pkt.data = av_malloc(pkt.size);
3661 return AVERROR(ENOMEM);
3662 AV_WB16(pkt.data, len);
3663 memcpy(pkt.data + 2, t->value, len);
3664 ff_mov_write_packet(s, &pkt);
3665 av_freep(&pkt.data);
3672 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3675 MOVMuxContext *mov = s->priv_data;
3676 MOVTrack *track = &mov->tracks[index];
3677 AVStream *src_st = s->streams[src_index];
3679 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3680 AVRational rate = find_fps(s, src_st);
3682 /* compute the frame number */
3683 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3687 /* tmcd track based on video stream */
3688 track->mode = mov->mode;
3689 track->tag = MKTAG('t','m','c','d');
3690 track->src_track = src_index;
3691 track->timescale = mov->tracks[src_index].timescale;
3692 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3693 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3695 /* encode context: tmcd data stream */
3696 track->enc = avcodec_alloc_context3(NULL);
3697 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3698 track->enc->codec_tag = track->tag;
3699 track->enc->time_base = av_inv_q(rate);
3701 /* the tmcd track just contains one packet with the frame number */
3702 pkt.data = av_malloc(pkt.size);
3703 AV_WB32(pkt.data, tc.start);
3704 ret = ff_mov_write_packet(s, &pkt);
3710 * st->disposition controls the "enabled" flag in the tkhd tag.
3711 * QuickTime will not play a track if it is not enabled. So make sure
3712 * that one track of each type (audio, video, subtitle) is enabled.
3714 * Subtitles are special. For audio and video, setting "enabled" also
3715 * makes the track "default" (i.e. it is rendered when played). For
3716 * subtitles, an "enabled" subtitle is not rendered by default, but
3717 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3720 static void enable_tracks(AVFormatContext *s)
3722 MOVMuxContext *mov = s->priv_data;
3724 uint8_t enabled[AVMEDIA_TYPE_NB];
3725 int first[AVMEDIA_TYPE_NB];
3727 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3732 for (i = 0; i < s->nb_streams; i++) {
3733 AVStream *st = s->streams[i];
3735 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3736 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3739 if (first[st->codec->codec_type] < 0)
3740 first[st->codec->codec_type] = i;
3741 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3742 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3743 enabled[st->codec->codec_type] = 1;
3747 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3749 case AVMEDIA_TYPE_VIDEO:
3750 case AVMEDIA_TYPE_AUDIO:
3751 case AVMEDIA_TYPE_SUBTITLE:
3752 if (!enabled[i] && first[i] >= 0)
3753 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3759 static void mov_free(AVFormatContext *s)
3761 MOVMuxContext *mov = s->priv_data;
3764 if (mov->chapter_track) {
3765 if (mov->tracks[mov->chapter_track].enc)
3766 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3767 av_freep(&mov->tracks[mov->chapter_track].enc);
3770 for (i = 0; i < mov->nb_streams; i++) {
3771 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3772 ff_mov_close_hinting(&mov->tracks[i]);
3773 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3774 av_freep(&mov->tracks[i].enc);
3775 av_freep(&mov->tracks[i].cluster);
3776 av_freep(&mov->tracks[i].frag_info);
3778 if (mov->tracks[i].vos_len)
3779 av_freep(&mov->tracks[i].vos_data);
3782 av_freep(&mov->tracks);
3785 static uint32_t rgb_to_yuv(uint32_t rgb)
3790 r = (rgb >> 16) & 0xFF;
3791 g = (rgb >> 8) & 0xFF;
3794 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3795 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3796 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3798 return (y << 16) | (cr << 8) | cb;
3801 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3804 int i, width = 720, height = 480;
3805 int have_palette = 0, have_size = 0;
3806 uint32_t palette[16];
3807 char *cur = st->codec->extradata;
3809 while (cur && *cur) {
3810 if (strncmp("palette:", cur, 8) == 0) {
3812 count = sscanf(cur + 8,
3813 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3814 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3815 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3816 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3817 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3818 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3819 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3820 &palette[12], &palette[13], &palette[14], &palette[15]);
3822 for (i = 0; i < count; i++) {
3823 palette[i] = rgb_to_yuv(palette[i]);
3826 } else if (!strncmp("size:", cur, 5)) {
3827 sscanf(cur + 5, "%dx%d", &width, &height);
3830 if (have_palette && have_size)
3832 cur += strcspn(cur, "\n\r");
3833 cur += strspn(cur, "\n\r");
3836 track->vos_data = av_malloc(16*4);
3837 if (!track->vos_data)
3838 return AVERROR(ENOMEM);
3839 for (i = 0; i < 16; i++) {
3840 AV_WB32(track->vos_data + i * 4, palette[i]);
3842 track->vos_len = 16 * 4;
3844 st->codec->width = width;
3845 st->codec->height = track->height = height;
3850 static int mov_write_header(AVFormatContext *s)
3852 AVIOContext *pb = s->pb;
3853 MOVMuxContext *mov = s->priv_data;
3854 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3855 int i, ret, hint_track = 0, tmcd_track = 0;
3857 /* Default mode == MP4 */
3858 mov->mode = MODE_MP4;
3860 if (s->oformat != NULL) {
3861 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3862 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3863 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3864 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3865 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3866 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3867 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3870 for (i = 0; i < s->nb_streams; i++)
3871 if (s->streams[i]->codec->flags & CODEC_FLAG_BITEXACT)
3874 /* Set the FRAGMENT flag if any of the fragmentation methods are
3876 if (mov->max_fragment_duration || mov->max_fragment_size ||
3877 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3878 FF_MOV_FLAG_FRAG_KEYFRAME |
3879 FF_MOV_FLAG_FRAG_CUSTOM))
3880 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3882 /* Set other implicit flags immediately */
3883 if (mov->mode == MODE_ISM)
3884 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3885 FF_MOV_FLAG_FRAGMENT;
3887 /* faststart: moov at the beginning of the file, if supported */
3888 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3889 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3890 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3891 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3892 "with fragmentation and custom IO, disabling faststart\n");
3893 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3895 mov->reserved_moov_size = -1;
3898 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3899 s->avoid_negative_ts = 2;
3902 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3903 * is enabled, we don't support non-seekable output at all. */
3904 if (!s->pb->seekable &&
3905 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3906 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3907 return AVERROR(EINVAL);
3910 mov_write_ftyp_tag(pb,s);
3911 if (mov->mode == MODE_PSP) {
3912 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3913 for (i = 0; i < s->nb_streams; i++) {
3914 AVStream *st = s->streams[i];
3915 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3917 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3923 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3924 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3925 return AVERROR(EINVAL);
3927 mov_write_uuidprof_tag(pb, s);
3930 mov->nb_streams = s->nb_streams;
3931 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3932 mov->chapter_track = mov->nb_streams++;
3934 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3935 /* Add hint tracks for each audio and video stream */
3936 hint_track = mov->nb_streams;
3937 for (i = 0; i < s->nb_streams; i++) {
3938 AVStream *st = s->streams[i];
3939 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3940 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3946 if (mov->mode == MODE_MOV) {
3947 tmcd_track = mov->nb_streams;
3949 /* +1 tmcd track for each video stream with a timecode */
3950 for (i = 0; i < s->nb_streams; i++) {
3951 AVStream *st = s->streams[i];
3952 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3953 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3954 mov->nb_meta_tmcd++;
3957 /* check if there is already a tmcd track to remux */
3958 if (mov->nb_meta_tmcd) {
3959 for (i = 0; i < s->nb_streams; i++) {
3960 AVStream *st = s->streams[i];
3961 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3962 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3963 "so timecode metadata are now ignored\n");
3964 mov->nb_meta_tmcd = 0;
3969 mov->nb_streams += mov->nb_meta_tmcd;
3972 // Reserve an extra stream for chapters for the case where chapters
3973 // are written in the trailer
3974 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3976 return AVERROR(ENOMEM);
3978 for (i = 0; i < s->nb_streams; i++) {
3979 AVStream *st= s->streams[i];
3980 MOVTrack *track= &mov->tracks[i];
3981 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3983 track->enc = st->codec;
3985 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3986 if (track->language < 0)
3987 track->language = 0;
3988 track->mode = mov->mode;
3989 track->tag = mov_find_codec_tag(s, track);
3991 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
3992 "codec not currently supported in container\n",
3993 avcodec_get_name(st->codec->codec_id), i);
3994 ret = AVERROR(EINVAL);
3997 /* If hinting of this track is enabled by a later hint track,
3998 * this is updated. */
3999 track->hint_track = -1;
4000 track->start_dts = AV_NOPTS_VALUE;
4001 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4002 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4003 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4004 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4005 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4006 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4007 ret = AVERROR(EINVAL);
4010 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4012 if (mov->video_track_timescale) {
4013 track->timescale = mov->video_track_timescale;
4015 track->timescale = st->codec->time_base.den;
4016 while(track->timescale < 10000)
4017 track->timescale *= 2;
4019 if (track->mode == MODE_MOV && track->timescale > 100000)
4020 av_log(s, AV_LOG_WARNING,
4021 "WARNING codec timebase is very high. If duration is too long,\n"
4022 "file may not be playable by quicktime. Specify a shorter timebase\n"
4023 "or choose different container.\n");
4024 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4025 track->timescale = st->codec->sample_rate;
4026 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4027 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4028 track->audio_vbr = 1;
4029 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4030 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4031 st->codec->codec_id == AV_CODEC_ID_ILBC){
4032 if (!st->codec->block_align) {
4033 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4034 ret = AVERROR(EINVAL);
4037 track->sample_size = st->codec->block_align;
4038 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4039 track->audio_vbr = 1;
4041 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4043 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4044 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4045 track->audio_vbr = 1;
4047 if (track->mode != MODE_MOV &&
4048 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4049 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4050 i, track->enc->sample_rate);
4051 ret = AVERROR(EINVAL);
4054 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4055 track->timescale = st->codec->time_base.den;
4056 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4057 track->timescale = st->codec->time_base.den;
4059 track->timescale = MOV_TIMESCALE;
4062 track->height = st->codec->height;
4063 /* The ism specific timescale isn't mandatory, but is assumed by
4064 * some tools, such as mp4split. */
4065 if (mov->mode == MODE_ISM)
4066 track->timescale = 10000000;
4068 avpriv_set_pts_info(st, 64, 1, track->timescale);
4070 /* copy extradata if it exists */
4071 if (st->codec->extradata_size) {
4072 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4073 mov_create_dvd_sub_decoder_specific_info(track, st);
4075 track->vos_len = st->codec->extradata_size;
4076 track->vos_data = av_malloc(track->vos_len);
4077 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4085 if (mov->reserved_moov_size){
4086 mov->reserved_moov_pos= avio_tell(pb);
4087 if (mov->reserved_moov_size > 0)
4088 avio_skip(pb, mov->reserved_moov_size);
4091 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4092 /* If no fragmentation options have been set, set a default. */
4093 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4094 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4095 !mov->max_fragment_duration && !mov->max_fragment_size)
4096 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4098 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4099 mov->reserved_moov_pos = avio_tell(pb);
4100 mov_write_mdat_tag(pb, mov);
4103 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4104 mov->time = ff_iso8601_to_unix_time(t->value);
4106 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4108 if (mov->chapter_track)
4109 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4112 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4113 /* Initialize the hint tracks for each audio and video stream */
4114 for (i = 0; i < s->nb_streams; i++) {
4115 AVStream *st = s->streams[i];
4116 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4117 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4118 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4125 if (mov->nb_meta_tmcd) {
4126 /* Initialize the tmcd tracks */
4127 for (i = 0; i < s->nb_streams; i++) {
4128 AVStream *st = s->streams[i];
4131 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4133 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4136 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4145 if (mov->flags & FF_MOV_FLAG_ISML)
4146 mov_write_isml_manifest(pb, mov);
4148 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4149 mov_write_moov_tag(pb, mov, s);
4159 static int get_moov_size(AVFormatContext *s)
4162 AVIOContext *moov_buf;
4163 MOVMuxContext *mov = s->priv_data;
4165 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4167 mov_write_moov_tag(moov_buf, mov, s);
4168 return ffio_close_null_buf(moov_buf);
4172 * This function gets the moov size if moved to the top of the file: the chunk
4173 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4174 * entries) when the moov is moved to the beginning, so the size of the moov
4175 * would change. It also updates the chunk offset tables.
4177 static int compute_moov_size(AVFormatContext *s)
4179 int i, moov_size, moov_size2;
4180 MOVMuxContext *mov = s->priv_data;
4182 moov_size = get_moov_size(s);
4186 for (i = 0; i < mov->nb_streams; i++)
4187 mov->tracks[i].data_offset += moov_size;
4189 moov_size2 = get_moov_size(s);
4193 /* if the size changed, we just switched from stco to co64 and need to
4194 * update the offsets */
4195 if (moov_size2 != moov_size)
4196 for (i = 0; i < mov->nb_streams; i++)
4197 mov->tracks[i].data_offset += moov_size2 - moov_size;
4202 static int shift_data(AVFormatContext *s)
4204 int ret = 0, moov_size;
4205 MOVMuxContext *mov = s->priv_data;
4206 int64_t pos, pos_end = avio_tell(s->pb);
4207 uint8_t *buf, *read_buf[2];
4208 int read_buf_id = 0;
4210 AVIOContext *read_pb;
4212 moov_size = compute_moov_size(s);
4216 buf = av_malloc(moov_size * 2);
4218 return AVERROR(ENOMEM);
4220 read_buf[1] = buf + moov_size;
4222 /* Shift the data: the AVIO context of the output can only be used for
4223 * writing, so we re-open the same output, but for reading. It also avoids
4224 * a read/seek/write/seek back and forth. */
4226 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4228 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4229 "the second pass (faststart)\n", s->filename);
4233 /* mark the end of the shift to up to the last data we wrote, and get ready
4235 pos_end = avio_tell(s->pb);
4236 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4238 /* start reading at where the new moov will be placed */
4239 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4240 pos = avio_tell(read_pb);
4242 #define READ_BLOCK do { \
4243 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4247 /* shift data by chunk of at most moov_size */
4252 n = read_size[read_buf_id];
4255 avio_write(s->pb, read_buf[read_buf_id], n);
4257 } while (pos < pos_end);
4258 avio_close(read_pb);
4265 static int mov_write_trailer(AVFormatContext *s)
4267 MOVMuxContext *mov = s->priv_data;
4268 AVIOContext *pb = s->pb;
4274 * Before actually writing the trailer, make sure that there are no
4275 * dangling subtitles, that need a terminating sample.
4277 for (i = 0; i < mov->nb_streams; i++) {
4278 MOVTrack *trk = &mov->tracks[i];
4279 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4280 !trk->last_sample_is_subtitle_end) {
4281 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4282 trk->last_sample_is_subtitle_end = 1;
4286 // If there were no chapters when the header was written, but there
4287 // are chapters now, write them in the trailer. This only works
4288 // when we are not doing fragments.
4289 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4290 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4291 mov->chapter_track = mov->nb_streams++;
4292 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4297 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4298 moov_pos = avio_tell(pb);
4300 /* Write size of mdat tag */
4301 if (mov->mdat_size + 8 <= UINT32_MAX) {
4302 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4303 avio_wb32(pb, mov->mdat_size + 8);
4305 /* overwrite 'wide' placeholder atom */
4306 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4307 /* special value: real atom size will be 64 bit value after
4310 ffio_wfourcc(pb, "mdat");
4311 avio_wb64(pb, mov->mdat_size + 16);
4313 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4315 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4316 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4317 res = shift_data(s);
4319 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4320 mov_write_moov_tag(pb, mov, s);
4322 } else if (mov->reserved_moov_size > 0) {
4324 mov_write_moov_tag(pb, mov, s);
4325 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4327 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4330 avio_wb32(pb, size);
4331 ffio_wfourcc(pb, "free");
4332 for (i = 0; i < size; i++)
4334 avio_seek(pb, moov_pos, SEEK_SET);
4336 mov_write_moov_tag(pb, mov, s);
4339 mov_flush_fragment(s);
4340 mov_write_mfra_tag(pb, mov);
4343 for (i = 0; i < mov->nb_streams; i++) {
4344 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4345 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4346 int64_t off = avio_tell(pb);
4348 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4349 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4350 avio_write(pb, buf, 7);
4351 avio_seek(pb, off, SEEK_SET);
4362 #if CONFIG_MOV_MUXER
4364 AVOutputFormat ff_mov_muxer = {
4366 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4367 .extensions = "mov",
4368 .priv_data_size = sizeof(MOVMuxContext),
4369 .audio_codec = AV_CODEC_ID_AAC,
4370 .video_codec = CONFIG_LIBX264_ENCODER ?
4371 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4372 .write_header = mov_write_header,
4373 .write_packet = mov_write_packet,
4374 .write_trailer = mov_write_trailer,
4375 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4376 .codec_tag = (const AVCodecTag* const []){
4377 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4379 .priv_class = &mov_muxer_class,
4382 #if CONFIG_TGP_MUXER
4384 AVOutputFormat ff_tgp_muxer = {
4386 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4387 .extensions = "3gp",
4388 .priv_data_size = sizeof(MOVMuxContext),
4389 .audio_codec = AV_CODEC_ID_AMR_NB,
4390 .video_codec = AV_CODEC_ID_H263,
4391 .write_header = mov_write_header,
4392 .write_packet = mov_write_packet,
4393 .write_trailer = mov_write_trailer,
4394 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4395 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4396 .priv_class = &tgp_muxer_class,
4399 #if CONFIG_MP4_MUXER
4401 AVOutputFormat ff_mp4_muxer = {
4403 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4404 .mime_type = "application/mp4",
4405 .extensions = "mp4",
4406 .priv_data_size = sizeof(MOVMuxContext),
4407 .audio_codec = AV_CODEC_ID_AAC,
4408 .video_codec = CONFIG_LIBX264_ENCODER ?
4409 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4410 .write_header = mov_write_header,
4411 .write_packet = mov_write_packet,
4412 .write_trailer = mov_write_trailer,
4413 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4414 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4415 .priv_class = &mp4_muxer_class,
4418 #if CONFIG_PSP_MUXER
4420 AVOutputFormat ff_psp_muxer = {
4422 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4423 .extensions = "mp4,psp",
4424 .priv_data_size = sizeof(MOVMuxContext),
4425 .audio_codec = AV_CODEC_ID_AAC,
4426 .video_codec = CONFIG_LIBX264_ENCODER ?
4427 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4428 .write_header = mov_write_header,
4429 .write_packet = mov_write_packet,
4430 .write_trailer = mov_write_trailer,
4431 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4432 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4433 .priv_class = &psp_muxer_class,
4436 #if CONFIG_TG2_MUXER
4438 AVOutputFormat ff_tg2_muxer = {
4440 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4441 .extensions = "3g2",
4442 .priv_data_size = sizeof(MOVMuxContext),
4443 .audio_codec = AV_CODEC_ID_AMR_NB,
4444 .video_codec = AV_CODEC_ID_H263,
4445 .write_header = mov_write_header,
4446 .write_packet = mov_write_packet,
4447 .write_trailer = mov_write_trailer,
4448 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4449 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4450 .priv_class = &tg2_muxer_class,
4453 #if CONFIG_IPOD_MUXER
4455 AVOutputFormat ff_ipod_muxer = {
4457 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4458 .mime_type = "application/mp4",
4459 .extensions = "m4v,m4a",
4460 .priv_data_size = sizeof(MOVMuxContext),
4461 .audio_codec = AV_CODEC_ID_AAC,
4462 .video_codec = AV_CODEC_ID_H264,
4463 .write_header = mov_write_header,
4464 .write_packet = mov_write_packet,
4465 .write_trailer = mov_write_trailer,
4466 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4467 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4468 .priv_class = &ipod_muxer_class,
4471 #if CONFIG_ISMV_MUXER
4473 AVOutputFormat ff_ismv_muxer = {
4475 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4476 .mime_type = "application/mp4",
4477 .extensions = "ismv,isma",
4478 .priv_data_size = sizeof(MOVMuxContext),
4479 .audio_codec = AV_CODEC_ID_AAC,
4480 .video_codec = AV_CODEC_ID_H264,
4481 .write_header = mov_write_header,
4482 .write_packet = mov_write_packet,
4483 .write_trailer = mov_write_trailer,
4484 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4485 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4486 .priv_class = &ismv_muxer_class,
4489 #if CONFIG_F4V_MUXER
4491 AVOutputFormat ff_f4v_muxer = {
4493 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4494 .mime_type = "application/f4v",
4495 .extensions = "f4v",
4496 .priv_data_size = sizeof(MOVMuxContext),
4497 .audio_codec = AV_CODEC_ID_AAC,
4498 .video_codec = AV_CODEC_ID_H264,
4499 .write_header = mov_write_header,
4500 .write_packet = mov_write_packet,
4501 .write_trailer = mov_write_trailer,
4502 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4503 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4504 .priv_class = &f4v_muxer_class,