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)
401 int64_t pos = avio_tell(pb);
403 avio_wl32(pb, track->tag); // store it byteswapped
404 track->enc->codec_tag = av_bswap16(track->tag >> 16);
405 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
407 return update_size(pb, pos);
410 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
413 int64_t pos = avio_tell(pb);
415 ffio_wfourcc(pb, "wfex");
416 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
418 return update_size(pb, pos);
421 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
423 uint32_t layout_tag, bitmap;
424 int64_t pos = avio_tell(pb);
426 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
427 track->enc->channel_layout,
430 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
431 "lack of channel information\n");
435 avio_wb32(pb, 0); // Size
436 ffio_wfourcc(pb, "chan"); // Type
437 avio_w8(pb, 0); // Version
438 avio_wb24(pb, 0); // Flags
439 avio_wb32(pb, layout_tag); // mChannelLayoutTag
440 avio_wb32(pb, bitmap); // mChannelBitmap
441 avio_wb32(pb, 0); // mNumberChannelDescriptions
443 return update_size(pb, pos);
446 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
448 int64_t pos = avio_tell(pb);
450 avio_wb32(pb, 0); /* size */
451 ffio_wfourcc(pb, "wave");
453 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
454 avio_wb32(pb, 12); /* size */
455 ffio_wfourcc(pb, "frma");
456 avio_wl32(pb, track->tag);
459 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
460 /* useless atom needed by mplayer, ipod, not needed by quicktime */
461 avio_wb32(pb, 12); /* size */
462 ffio_wfourcc(pb, "mp4a");
464 mov_write_esds_tag(pb, track);
465 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
466 mov_write_enda_tag(pb);
467 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
468 mov_write_enda_tag_be(pb);
469 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
470 mov_write_amr_tag(pb, track);
471 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
472 mov_write_ac3_tag(pb, track);
473 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
474 track->enc->codec_id == AV_CODEC_ID_QDM2) {
475 mov_write_extradata_tag(pb, track);
476 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
477 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
478 mov_write_ms_tag(pb, track);
481 avio_wb32(pb, 8); /* size */
482 avio_wb32(pb, 0); /* null tag */
484 return update_size(pb, pos);
487 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
490 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
491 int unescaped_size, seq_found = 0;
492 int level = 0, interlace = 0;
493 int packet_seq = track->vc1_info.packet_seq;
494 int packet_entry = track->vc1_info.packet_entry;
495 int slices = track->vc1_info.slices;
498 if (track->start_dts == AV_NOPTS_VALUE) {
499 /* No packets written yet, vc1_info isn't authoritative yet. */
500 /* Assume inline sequence and entry headers. This will be
501 * overwritten at the end if the file is seekable. */
502 packet_seq = packet_entry = 1;
505 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
507 return AVERROR(ENOMEM);
508 start = find_next_marker(track->vos_data, end);
509 for (next = start; next < end; start = next) {
512 next = find_next_marker(start + 4, end);
513 size = next - start - 4;
516 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
517 init_get_bits(&gb, unescaped, 8 * unescaped_size);
518 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
519 int profile = get_bits(&gb, 2);
520 if (profile != PROFILE_ADVANCED) {
522 return AVERROR(ENOSYS);
525 level = get_bits(&gb, 3);
526 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
528 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
529 skip_bits(&gb, 1); /* broadcast */
530 interlace = get_bits1(&gb);
531 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
536 return AVERROR(ENOSYS);
539 init_put_bits(&pbc, buf, 7);
540 /* VC1DecSpecStruc */
541 put_bits(&pbc, 4, 12); /* profile - advanced */
542 put_bits(&pbc, 3, level);
543 put_bits(&pbc, 1, 0); /* reserved */
544 /* VC1AdvDecSpecStruc */
545 put_bits(&pbc, 3, level);
546 put_bits(&pbc, 1, 0); /* cbr */
547 put_bits(&pbc, 6, 0); /* reserved */
548 put_bits(&pbc, 1, !interlace); /* no interlace */
549 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
550 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
551 put_bits(&pbc, 1, !slices); /* no slice code */
552 put_bits(&pbc, 1, 0); /* no bframe */
553 put_bits(&pbc, 1, 0); /* reserved */
554 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
555 flush_put_bits(&pbc);
562 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
564 uint8_t buf[7] = { 0 };
567 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
570 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
571 ffio_wfourcc(pb, "dvc1");
572 track->vc1_info.struct_offset = avio_tell(pb);
573 avio_write(pb, buf, sizeof(buf));
574 avio_write(pb, track->vos_data, track->vos_len);
579 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
581 avio_wb32(pb, track->vos_len + 8);
582 ffio_wfourcc(pb, "glbl");
583 avio_write(pb, track->vos_data, track->vos_len);
584 return 8 + track->vos_len;
588 * Compute flags for 'lpcm' tag.
589 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
591 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
594 case AV_CODEC_ID_PCM_F32BE:
595 case AV_CODEC_ID_PCM_F64BE:
597 case AV_CODEC_ID_PCM_F32LE:
598 case AV_CODEC_ID_PCM_F64LE:
600 case AV_CODEC_ID_PCM_U8:
602 case AV_CODEC_ID_PCM_S16BE:
603 case AV_CODEC_ID_PCM_S24BE:
604 case AV_CODEC_ID_PCM_S32BE:
606 case AV_CODEC_ID_PCM_S8:
607 case AV_CODEC_ID_PCM_S16LE:
608 case AV_CODEC_ID_PCM_S24LE:
609 case AV_CODEC_ID_PCM_S32LE:
616 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
620 if (cluster_idx >= track->entry)
623 if (cluster_idx + 1 == track->entry)
624 next_dts = track->track_duration + track->start_dts;
626 next_dts = track->cluster[cluster_idx + 1].dts;
628 next_dts -= track->cluster[cluster_idx].dts;
630 av_assert0(next_dts >= 0);
631 av_assert0(next_dts <= INT_MAX);
636 static int get_samples_per_packet(MOVTrack *track)
638 int i, first_duration;
640 // return track->enc->frame_size;
642 /* use 1 for raw PCM */
643 if (!track->audio_vbr)
646 /* check to see if duration is constant for all clusters */
649 first_duration = get_cluster_duration(track, 0);
650 for (i = 1; i < track->entry; i++) {
651 if (get_cluster_duration(track, i) != first_duration)
654 return first_duration;
657 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
659 int64_t pos = avio_tell(pb);
661 uint32_t tag = track->tag;
663 if (track->mode == MODE_MOV) {
664 if (track->timescale > UINT16_MAX) {
665 if (mov_get_lpcm_flags(track->enc->codec_id))
666 tag = AV_RL32("lpcm");
668 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
669 mov_pcm_be_gt16(track->enc->codec_id) ||
670 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
671 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
672 track->enc->codec_id == AV_CODEC_ID_QDM2) {
677 avio_wb32(pb, 0); /* size */
678 avio_wl32(pb, tag); // store it byteswapped
679 avio_wb32(pb, 0); /* Reserved */
680 avio_wb16(pb, 0); /* Reserved */
681 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
683 /* SoundDescription */
684 avio_wb16(pb, version); /* Version */
685 avio_wb16(pb, 0); /* Revision level */
686 avio_wb32(pb, 0); /* Reserved */
691 avio_wb16(pb, 0xfffe);
693 avio_wb32(pb, 0x00010000);
695 avio_wb64(pb, av_double2int(track->enc->sample_rate));
696 avio_wb32(pb, track->enc->channels);
697 avio_wb32(pb, 0x7F000000);
698 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
699 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
700 avio_wb32(pb, track->sample_size);
701 avio_wb32(pb, get_samples_per_packet(track));
703 if (track->mode == MODE_MOV) {
704 avio_wb16(pb, track->enc->channels);
705 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
706 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
707 avio_wb16(pb, 8); /* bits per sample */
710 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
711 } else { /* reserved for mp4/3gp */
717 avio_wb16(pb, 0); /* packet size (= 0) */
718 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
719 track->enc->sample_rate : 0);
720 avio_wb16(pb, 0); /* Reserved */
723 if (version == 1) { /* SoundDescription V1 extended info */
724 if (mov_pcm_le_gt16(track->enc->codec_id) ||
725 mov_pcm_be_gt16(track->enc->codec_id))
726 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
728 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
729 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
730 avio_wb32(pb, track->sample_size); /* Bytes per frame */
731 avio_wb32(pb, 2); /* Bytes per sample */
734 if (track->mode == MODE_MOV &&
735 (track->enc->codec_id == AV_CODEC_ID_AAC ||
736 track->enc->codec_id == AV_CODEC_ID_AC3 ||
737 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
738 track->enc->codec_id == AV_CODEC_ID_ALAC ||
739 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
740 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
741 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
742 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
743 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
744 mov_write_wave_tag(pb, track);
745 else if (track->tag == MKTAG('m','p','4','a'))
746 mov_write_esds_tag(pb, track);
747 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
748 mov_write_amr_tag(pb, track);
749 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
750 mov_write_ac3_tag(pb, track);
751 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
752 mov_write_extradata_tag(pb, track);
753 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
754 mov_write_wfex_tag(pb, track);
755 else if (track->vos_len > 0)
756 mov_write_glbl_tag(pb, track);
758 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
759 mov_write_chan_tag(pb, track);
761 return update_size(pb, pos);
764 static int mov_write_d263_tag(AVIOContext *pb)
766 avio_wb32(pb, 0xf); /* size */
767 ffio_wfourcc(pb, "d263");
768 ffio_wfourcc(pb, "FFMP");
769 avio_w8(pb, 0); /* decoder version */
770 /* FIXME use AVCodecContext level/profile, when encoder will set values */
771 avio_w8(pb, 0xa); /* level */
772 avio_w8(pb, 0); /* profile */
776 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
778 int64_t pos = avio_tell(pb);
781 ffio_wfourcc(pb, "avcC");
782 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
783 return update_size(pb, pos);
786 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
788 int64_t pos = avio_tell(pb);
791 ffio_wfourcc(pb, "hvcC");
792 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
793 return update_size(pb, pos);
796 /* also used by all avid codecs (dv, imx, meridien) and their variants */
797 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
800 avio_wb32(pb, 24); /* size */
801 ffio_wfourcc(pb, "ACLR");
802 ffio_wfourcc(pb, "ACLR");
803 ffio_wfourcc(pb, "0001");
804 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
805 avio_wb32(pb, 0); /* unknown */
807 avio_wb32(pb, 24); /* size */
808 ffio_wfourcc(pb, "APRG");
809 ffio_wfourcc(pb, "APRG");
810 ffio_wfourcc(pb, "0001");
811 avio_wb32(pb, 1); /* unknown */
812 avio_wb32(pb, 0); /* unknown */
814 avio_wb32(pb, 120); /* size */
815 ffio_wfourcc(pb, "ARES");
816 ffio_wfourcc(pb, "ARES");
817 ffio_wfourcc(pb, "0001");
818 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
819 avio_wb32(pb, track->enc->width);
820 /* values below are based on samples created with quicktime and avid codecs */
821 if (track->vos_data[5] & 2) { // interlaced
822 avio_wb32(pb, track->enc->height / 2);
823 avio_wb32(pb, 2); /* unknown */
824 avio_wb32(pb, 0); /* unknown */
825 avio_wb32(pb, 4); /* unknown */
827 avio_wb32(pb, track->enc->height);
828 avio_wb32(pb, 1); /* unknown */
829 avio_wb32(pb, 0); /* unknown */
830 if (track->enc->height == 1080)
831 avio_wb32(pb, 5); /* unknown */
833 avio_wb32(pb, 6); /* unknown */
836 for (i = 0; i < 10; i++)
839 /* extra padding for stsd needed */
844 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
846 int tag = track->enc->codec_tag;
848 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
851 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
852 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
853 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
854 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
855 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
856 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
857 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
858 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
859 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
864 static const AVCodecTag codec_ipod_tags[] = {
865 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
866 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
867 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
868 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
869 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
870 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
871 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
872 { AV_CODEC_ID_NONE, 0 },
875 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
877 int tag = track->enc->codec_tag;
879 // keep original tag for subs, ipod supports both formats
880 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
881 (tag == MKTAG('t', 'x', '3', 'g') ||
882 tag == MKTAG('t', 'e', 'x', 't'))))
883 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
885 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
886 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
887 "Quicktime/Ipod might not play the file\n");
892 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
896 if (track->enc->width == 720) { /* SD */
897 if (track->enc->height == 480) { /* NTSC */
898 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
899 else tag = MKTAG('d','v','c',' ');
900 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
901 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
902 else tag = MKTAG('d','v','p','p');
903 } else if (track->enc->height == 720) { /* HD 720 line */
904 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
905 else tag = MKTAG('d','v','h','p');
906 } else if (track->enc->height == 1080) { /* HD 1080 line */
907 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
908 else tag = MKTAG('d','v','h','6');
910 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
917 static AVRational find_fps(AVFormatContext *s, AVStream *st)
919 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
920 /* if the codec time base makes no sense, try to fallback on stream frame rate */
921 if (av_timecode_check_frame_rate(rate) < 0) {
922 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
923 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
924 rate = st->avg_frame_rate;
930 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
932 int tag = track->enc->codec_tag;
933 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
934 AVStream *st = track->st;
935 int rate = av_q2d(find_fps(s, st));
938 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
940 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
941 if (track->enc->width == 1280 && track->enc->height == 720) {
943 if (rate == 24) tag = MKTAG('x','d','v','4');
944 else if (rate == 25) tag = MKTAG('x','d','v','5');
945 else if (rate == 30) tag = MKTAG('x','d','v','1');
946 else if (rate == 50) tag = MKTAG('x','d','v','a');
947 else if (rate == 60) tag = MKTAG('x','d','v','9');
949 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
951 if (rate == 24) tag = MKTAG('x','d','v','6');
952 else if (rate == 25) tag = MKTAG('x','d','v','7');
953 else if (rate == 30) tag = MKTAG('x','d','v','8');
955 if (rate == 25) tag = MKTAG('x','d','v','3');
956 else if (rate == 30) tag = MKTAG('x','d','v','2');
958 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
960 if (rate == 24) tag = MKTAG('x','d','v','d');
961 else if (rate == 25) tag = MKTAG('x','d','v','e');
962 else if (rate == 30) tag = MKTAG('x','d','v','f');
964 if (rate == 25) tag = MKTAG('x','d','v','c');
965 else if (rate == 30) tag = MKTAG('x','d','v','b');
968 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
969 if (track->enc->width == 1280 && track->enc->height == 720) {
971 if (rate == 24) tag = MKTAG('x','d','5','4');
972 else if (rate == 25) tag = MKTAG('x','d','5','5');
973 else if (rate == 30) tag = MKTAG('x','d','5','1');
974 else if (rate == 50) tag = MKTAG('x','d','5','a');
975 else if (rate == 60) tag = MKTAG('x','d','5','9');
977 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
979 if (rate == 24) tag = MKTAG('x','d','5','d');
980 else if (rate == 25) tag = MKTAG('x','d','5','e');
981 else if (rate == 30) tag = MKTAG('x','d','5','f');
983 if (rate == 25) tag = MKTAG('x','d','5','c');
984 else if (rate == 30) tag = MKTAG('x','d','5','b');
992 static const struct {
993 enum AVPixelFormat pix_fmt;
996 } mov_pix_fmt_tags[] = {
997 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
998 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
999 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1000 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1001 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1002 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1003 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1004 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1005 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1006 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1007 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1008 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1009 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1010 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1011 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1014 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1016 int tag = track->enc->codec_tag;
1018 enum AVPixelFormat pix_fmt;
1020 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1021 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1022 tag = mov_pix_fmt_tags[i].tag;
1023 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1024 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1029 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1030 track->enc->bits_per_coded_sample);
1031 if (tag == MKTAG('r','a','w',' ') &&
1032 track->enc->pix_fmt != pix_fmt &&
1033 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1034 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1035 av_get_pix_fmt_name(track->enc->pix_fmt));
1039 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1041 int tag = track->enc->codec_tag;
1043 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1044 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1045 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1046 track->enc->codec_id == AV_CODEC_ID_H263 ||
1047 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1048 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1049 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1050 tag = mov_get_dv_codec_tag(s, track);
1051 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1052 tag = mov_get_rawvideo_codec_tag(s, track);
1053 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1054 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1055 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1056 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1057 if (!tag) { // if no mac fcc found, try with Microsoft tags
1058 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1060 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1061 "the file may be unplayable!\n");
1063 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1064 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1065 if (!tag) { // if no mac fcc found, try with Microsoft tags
1066 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1068 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1069 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1070 "the file may be unplayable!\n");
1073 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1074 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1080 static const AVCodecTag codec_3gp_tags[] = {
1081 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1082 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1083 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1084 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1085 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1086 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1087 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1088 { AV_CODEC_ID_NONE, 0 },
1091 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1092 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1093 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1094 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1095 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1096 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1097 { AV_CODEC_ID_NONE, 0 },
1100 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1104 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1105 tag = mp4_get_codec_tag(s, track);
1106 else if (track->mode == MODE_ISM) {
1107 tag = mp4_get_codec_tag(s, track);
1108 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1109 tag = MKTAG('w', 'm', 'a', ' ');
1110 } else if (track->mode == MODE_IPOD)
1111 tag = ipod_get_codec_tag(s, track);
1112 else if (track->mode & MODE_3GP)
1113 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1114 else if (track->mode == MODE_F4V)
1115 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1117 tag = mov_get_codec_tag(s, track);
1122 /** Write uuid atom.
1123 * Needed to make file play in iPods running newest firmware
1124 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1126 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1129 ffio_wfourcc(pb, "uuid");
1130 avio_wb32(pb, 0x6b6840f2);
1131 avio_wb32(pb, 0x5f244fc5);
1132 avio_wb32(pb, 0xba39a51b);
1133 avio_wb32(pb, 0xcf0323f3);
1138 static const uint16_t fiel_data[] = {
1139 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1142 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1144 unsigned mov_field_order = 0;
1145 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1146 mov_field_order = fiel_data[track->enc->field_order];
1150 ffio_wfourcc(pb, "fiel");
1151 avio_wb16(pb, mov_field_order);
1155 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1157 int64_t pos = avio_tell(pb);
1158 avio_wb32(pb, 0); /* size */
1159 avio_wl32(pb, track->tag); // store it byteswapped
1160 avio_wb32(pb, 0); /* Reserved */
1161 avio_wb16(pb, 0); /* Reserved */
1162 avio_wb16(pb, 1); /* Data-reference index */
1164 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1165 mov_write_esds_tag(pb, track);
1166 else if (track->enc->extradata_size)
1167 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1169 return update_size(pb, pos);
1172 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1175 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1176 track->enc->sample_aspect_ratio.den, INT_MAX);
1179 ffio_wfourcc(pb, "pasp");
1180 avio_wb32(pb, sar.num);
1181 avio_wb32(pb, sar.den);
1185 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1187 AVDictionaryEntry *encoder;
1188 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1189 || (track->enc->width == 1440 && track->enc->height == 1080)
1190 || (track->enc->width == 1920 && track->enc->height == 1080);
1192 if (track->mode == MODE_MOV &&
1193 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1194 av_strlcpy(compressor_name, encoder->value, 32);
1195 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1196 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1197 AVStream *st = track->st;
1198 int rate = av_q2d(find_fps(NULL, st));
1199 av_strlcatf(compressor_name, len, "XDCAM");
1200 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1201 av_strlcatf(compressor_name, len, " HD422");
1202 } else if(track->enc->width == 1440) {
1203 av_strlcatf(compressor_name, len, " HD");
1205 av_strlcatf(compressor_name, len, " EX");
1207 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1209 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1213 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1215 int64_t pos = avio_tell(pb);
1216 char compressor_name[32] = { 0 };
1218 avio_wb32(pb, 0); /* size */
1219 avio_wl32(pb, track->tag); // store it byteswapped
1220 avio_wb32(pb, 0); /* Reserved */
1221 avio_wb16(pb, 0); /* Reserved */
1222 avio_wb16(pb, 1); /* Data-reference index */
1224 avio_wb16(pb, 0); /* Codec stream version */
1225 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1226 if (track->mode == MODE_MOV) {
1227 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1228 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1229 avio_wb32(pb, 0); /* Temporal Quality */
1230 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1232 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1233 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1236 avio_wb32(pb, 0); /* Reserved */
1237 avio_wb32(pb, 0); /* Reserved */
1238 avio_wb32(pb, 0); /* Reserved */
1240 avio_wb16(pb, track->enc->width); /* Video width */
1241 avio_wb16(pb, track->height); /* Video height */
1242 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1243 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1244 avio_wb32(pb, 0); /* Data size (= 0) */
1245 avio_wb16(pb, 1); /* Frame count (= 1) */
1247 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1248 find_compressor(compressor_name, 32, track);
1249 avio_w8(pb, strlen(compressor_name));
1250 avio_write(pb, compressor_name, 31);
1252 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1253 avio_wb16(pb, track->enc->bits_per_coded_sample);
1255 avio_wb16(pb, 0x18); /* Reserved */
1256 avio_wb16(pb, 0xffff); /* Reserved */
1257 if (track->tag == MKTAG('m','p','4','v'))
1258 mov_write_esds_tag(pb, track);
1259 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1260 mov_write_d263_tag(pb);
1261 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1262 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1263 mov_write_extradata_tag(pb, track);
1265 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1266 mov_write_avid_tag(pb, track);
1267 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1268 mov_write_hvcc_tag(pb, track);
1269 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1270 mov_write_avcc_tag(pb, track);
1271 if (track->mode == MODE_IPOD)
1272 mov_write_uuid_tag_ipod(pb);
1273 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1274 mov_write_dvc1_tag(pb, track);
1275 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1276 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1277 /* Don't write any potential extradata here - the cropping
1278 * is signalled via the normal width/height fields. */
1279 } else if (track->vos_len > 0)
1280 mov_write_glbl_tag(pb, track);
1282 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1283 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1284 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1285 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1286 mov_write_fiel_tag(pb, track);
1288 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1289 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1290 mov_write_pasp_tag(pb, track);
1293 return update_size(pb, pos);
1296 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1298 int64_t pos = avio_tell(pb);
1299 avio_wb32(pb, 0); /* size */
1300 ffio_wfourcc(pb, "rtp ");
1301 avio_wb32(pb, 0); /* Reserved */
1302 avio_wb16(pb, 0); /* Reserved */
1303 avio_wb16(pb, 1); /* Data-reference index */
1305 avio_wb16(pb, 1); /* Hint track version */
1306 avio_wb16(pb, 1); /* Highest compatible version */
1307 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1309 avio_wb32(pb, 12); /* size */
1310 ffio_wfourcc(pb, "tims");
1311 avio_wb32(pb, track->timescale);
1313 return update_size(pb, pos);
1316 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1318 int64_t pos = avio_tell(pb);
1320 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1321 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1323 if (nb_frames > 255) {
1324 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1325 return AVERROR(EINVAL);
1328 avio_wb32(pb, 0); /* size */
1329 ffio_wfourcc(pb, "tmcd"); /* Data format */
1330 avio_wb32(pb, 0); /* Reserved */
1331 avio_wb32(pb, 1); /* Data reference index */
1332 avio_wb32(pb, 0); /* Flags */
1333 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1334 avio_wb32(pb, track->timescale); /* Timescale */
1335 avio_wb32(pb, frame_duration); /* Frame duration */
1336 avio_w8(pb, nb_frames); /* Number of frames */
1337 avio_wb24(pb, 0); /* Reserved */
1338 /* TODO: source reference string */
1341 avio_wb32(pb, 0); /* size */
1342 ffio_wfourcc(pb, "tmcd"); /* Data format */
1343 avio_wb32(pb, 0); /* Reserved */
1344 avio_wb32(pb, 1); /* Data reference index */
1345 if (track->enc->extradata_size)
1346 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1348 return update_size(pb, pos);
1351 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1353 int64_t pos = avio_tell(pb);
1354 avio_wb32(pb, 0); /* size */
1355 ffio_wfourcc(pb, "stsd");
1356 avio_wb32(pb, 0); /* version & flags */
1357 avio_wb32(pb, 1); /* entry count */
1358 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1359 mov_write_video_tag(pb, track);
1360 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1361 mov_write_audio_tag(pb, track);
1362 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1363 mov_write_subtitle_tag(pb, track);
1364 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1365 mov_write_rtp_tag(pb, track);
1366 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1367 mov_write_tmcd_tag(pb, track);
1368 return update_size(pb, pos);
1371 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1373 MOVStts *ctts_entries;
1374 uint32_t entries = 0;
1378 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1379 ctts_entries[0].count = 1;
1380 ctts_entries[0].duration = track->cluster[0].cts;
1381 for (i = 1; i < track->entry; i++) {
1382 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1383 ctts_entries[entries].count++; /* compress */
1386 ctts_entries[entries].duration = track->cluster[i].cts;
1387 ctts_entries[entries].count = 1;
1390 entries++; /* last one */
1391 atom_size = 16 + (entries * 8);
1392 avio_wb32(pb, atom_size); /* size */
1393 ffio_wfourcc(pb, "ctts");
1394 avio_wb32(pb, 0); /* version & flags */
1395 avio_wb32(pb, entries); /* entry count */
1396 for (i = 0; i < entries; i++) {
1397 avio_wb32(pb, ctts_entries[i].count);
1398 avio_wb32(pb, ctts_entries[i].duration);
1400 av_free(ctts_entries);
1404 /* Time to sample atom */
1405 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1407 MOVStts *stts_entries;
1408 uint32_t entries = -1;
1412 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1413 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1414 stts_entries[0].count = track->sample_count;
1415 stts_entries[0].duration = 1;
1418 stts_entries = track->entry ?
1419 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1421 for (i = 0; i < track->entry; i++) {
1422 int duration = get_cluster_duration(track, i);
1423 if (i && duration == stts_entries[entries].duration) {
1424 stts_entries[entries].count++; /* compress */
1427 stts_entries[entries].duration = duration;
1428 stts_entries[entries].count = 1;
1431 entries++; /* last one */
1433 atom_size = 16 + (entries * 8);
1434 avio_wb32(pb, atom_size); /* size */
1435 ffio_wfourcc(pb, "stts");
1436 avio_wb32(pb, 0); /* version & flags */
1437 avio_wb32(pb, entries); /* entry count */
1438 for (i = 0; i < entries; i++) {
1439 avio_wb32(pb, stts_entries[i].count);
1440 avio_wb32(pb, stts_entries[i].duration);
1442 av_free(stts_entries);
1446 static int mov_write_dref_tag(AVIOContext *pb)
1448 avio_wb32(pb, 28); /* size */
1449 ffio_wfourcc(pb, "dref");
1450 avio_wb32(pb, 0); /* version & flags */
1451 avio_wb32(pb, 1); /* entry count */
1453 avio_wb32(pb, 0xc); /* size */
1454 //FIXME add the alis and rsrc atom
1455 ffio_wfourcc(pb, "url ");
1456 avio_wb32(pb, 1); /* version & flags */
1461 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1463 int64_t pos = avio_tell(pb);
1464 avio_wb32(pb, 0); /* size */
1465 ffio_wfourcc(pb, "stbl");
1466 mov_write_stsd_tag(pb, track);
1467 mov_write_stts_tag(pb, track);
1468 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1469 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1470 track->has_keyframes && track->has_keyframes < track->entry)
1471 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1472 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1473 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1474 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1475 track->flags & MOV_TRACK_CTTS)
1476 mov_write_ctts_tag(pb, track);
1477 mov_write_stsc_tag(pb, track);
1478 mov_write_stsz_tag(pb, track);
1479 mov_write_stco_tag(pb, track);
1480 return update_size(pb, pos);
1483 static int mov_write_dinf_tag(AVIOContext *pb)
1485 int64_t pos = avio_tell(pb);
1486 avio_wb32(pb, 0); /* size */
1487 ffio_wfourcc(pb, "dinf");
1488 mov_write_dref_tag(pb);
1489 return update_size(pb, pos);
1492 static int mov_write_nmhd_tag(AVIOContext *pb)
1495 ffio_wfourcc(pb, "nmhd");
1500 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1502 int64_t pos = avio_tell(pb);
1503 const char *font = "Lucida Grande";
1504 avio_wb32(pb, 0); /* size */
1505 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1506 avio_wb32(pb, 0); /* version & flags */
1507 avio_wb16(pb, 0); /* text font */
1508 avio_wb16(pb, 0); /* text face */
1509 avio_wb16(pb, 12); /* text size */
1510 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1511 avio_wb16(pb, 0x0000); /* text color (red) */
1512 avio_wb16(pb, 0x0000); /* text color (green) */
1513 avio_wb16(pb, 0x0000); /* text color (blue) */
1514 avio_wb16(pb, 0xffff); /* background color (red) */
1515 avio_wb16(pb, 0xffff); /* background color (green) */
1516 avio_wb16(pb, 0xffff); /* background color (blue) */
1517 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1518 avio_write(pb, font, strlen(font)); /* font name */
1519 return update_size(pb, pos);
1522 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1524 int64_t pos = avio_tell(pb);
1525 avio_wb32(pb, 0); /* size */
1526 ffio_wfourcc(pb, "gmhd");
1527 avio_wb32(pb, 0x18); /* gmin size */
1528 ffio_wfourcc(pb, "gmin");/* generic media info */
1529 avio_wb32(pb, 0); /* version & flags */
1530 avio_wb16(pb, 0x40); /* graphics mode = */
1531 avio_wb16(pb, 0x8000); /* opColor (r?) */
1532 avio_wb16(pb, 0x8000); /* opColor (g?) */
1533 avio_wb16(pb, 0x8000); /* opColor (b?) */
1534 avio_wb16(pb, 0); /* balance */
1535 avio_wb16(pb, 0); /* reserved */
1538 * This special text atom is required for
1539 * Apple Quicktime chapters. The contents
1540 * don't appear to be documented, so the
1541 * bytes are copied verbatim.
1543 if (track->tag != MKTAG('c','6','0','8')) {
1544 avio_wb32(pb, 0x2C); /* size */
1545 ffio_wfourcc(pb, "text");
1546 avio_wb16(pb, 0x01);
1547 avio_wb32(pb, 0x00);
1548 avio_wb32(pb, 0x00);
1549 avio_wb32(pb, 0x00);
1550 avio_wb32(pb, 0x01);
1551 avio_wb32(pb, 0x00);
1552 avio_wb32(pb, 0x00);
1553 avio_wb32(pb, 0x00);
1554 avio_wb32(pb, 0x00004000);
1555 avio_wb16(pb, 0x0000);
1558 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1559 int64_t tmcd_pos = avio_tell(pb);
1560 avio_wb32(pb, 0); /* size */
1561 ffio_wfourcc(pb, "tmcd");
1562 mov_write_tcmi_tag(pb, track);
1563 update_size(pb, tmcd_pos);
1565 return update_size(pb, pos);
1568 static int mov_write_smhd_tag(AVIOContext *pb)
1570 avio_wb32(pb, 16); /* size */
1571 ffio_wfourcc(pb, "smhd");
1572 avio_wb32(pb, 0); /* version & flags */
1573 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1574 avio_wb16(pb, 0); /* reserved */
1578 static int mov_write_vmhd_tag(AVIOContext *pb)
1580 avio_wb32(pb, 0x14); /* size (always 0x14) */
1581 ffio_wfourcc(pb, "vmhd");
1582 avio_wb32(pb, 0x01); /* version & flags */
1583 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1587 static int is_clcp_track(MOVTrack *track)
1589 return track->tag == MKTAG('c','7','0','8') ||
1590 track->tag == MKTAG('c','6','0','8');
1593 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1595 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1596 int64_t pos = avio_tell(pb);
1600 descr = "DataHandler";
1603 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1604 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1606 descr = "VideoHandler";
1607 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1609 descr = "SoundHandler";
1610 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1611 if (is_clcp_track(track)) {
1613 descr = "ClosedCaptionHandler";
1615 if (track->tag == MKTAG('t','x','3','g')) {
1617 } else if (track->tag == MKTAG('m','p','4','s')) {
1622 descr = "SubtitleHandler";
1624 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1626 descr = "HintHandler";
1627 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1629 descr = "TimeCodeHandler";
1632 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1633 track->enc->codec_tag);
1635 av_log(track->enc, AV_LOG_WARNING,
1636 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1637 tag_buf, track->enc->codec_tag);
1641 avio_wb32(pb, 0); /* size */
1642 ffio_wfourcc(pb, "hdlr");
1643 avio_wb32(pb, 0); /* Version & flags */
1644 avio_write(pb, hdlr, 4); /* handler */
1645 ffio_wfourcc(pb, hdlr_type); /* handler type */
1646 avio_wb32(pb, 0); /* reserved */
1647 avio_wb32(pb, 0); /* reserved */
1648 avio_wb32(pb, 0); /* reserved */
1649 if (!track || track->mode == MODE_MOV)
1650 avio_w8(pb, strlen(descr)); /* pascal string */
1651 avio_write(pb, descr, strlen(descr)); /* handler description */
1652 if (track && track->mode != MODE_MOV)
1653 avio_w8(pb, 0); /* c string */
1654 return update_size(pb, pos);
1657 static int mov_write_hmhd_tag(AVIOContext *pb)
1659 /* This atom must be present, but leaving the values at zero
1660 * seems harmless. */
1661 avio_wb32(pb, 28); /* size */
1662 ffio_wfourcc(pb, "hmhd");
1663 avio_wb32(pb, 0); /* version, flags */
1664 avio_wb16(pb, 0); /* maxPDUsize */
1665 avio_wb16(pb, 0); /* avgPDUsize */
1666 avio_wb32(pb, 0); /* maxbitrate */
1667 avio_wb32(pb, 0); /* avgbitrate */
1668 avio_wb32(pb, 0); /* reserved */
1672 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1674 int64_t pos = avio_tell(pb);
1675 avio_wb32(pb, 0); /* size */
1676 ffio_wfourcc(pb, "minf");
1677 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1678 mov_write_vmhd_tag(pb);
1679 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1680 mov_write_smhd_tag(pb);
1681 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1682 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1683 mov_write_gmhd_tag(pb, track);
1685 mov_write_nmhd_tag(pb);
1687 } else if (track->tag == MKTAG('r','t','p',' ')) {
1688 mov_write_hmhd_tag(pb);
1689 } else if (track->tag == MKTAG('t','m','c','d')) {
1690 mov_write_gmhd_tag(pb, track);
1692 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1693 mov_write_hdlr_tag(pb, NULL);
1694 mov_write_dinf_tag(pb);
1695 mov_write_stbl_tag(pb, track);
1696 return update_size(pb, pos);
1699 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1701 int version = track->track_duration < INT32_MAX ? 0 : 1;
1703 if (track->mode == MODE_ISM)
1706 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1707 ffio_wfourcc(pb, "mdhd");
1708 avio_w8(pb, version);
1709 avio_wb24(pb, 0); /* flags */
1711 avio_wb64(pb, track->time);
1712 avio_wb64(pb, track->time);
1714 avio_wb32(pb, track->time); /* creation time */
1715 avio_wb32(pb, track->time); /* modification time */
1717 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1719 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1721 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1722 avio_wb16(pb, track->language); /* language */
1723 avio_wb16(pb, 0); /* reserved (quality) */
1725 if (version != 0 && track->mode == MODE_MOV) {
1726 av_log(NULL, AV_LOG_ERROR,
1727 "FATAL error, file duration too long for timebase, this file will not be\n"
1728 "playable with quicktime. Choose a different timebase or a different\n"
1729 "container format\n");
1735 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1737 int64_t pos = avio_tell(pb);
1738 avio_wb32(pb, 0); /* size */
1739 ffio_wfourcc(pb, "mdia");
1740 mov_write_mdhd_tag(pb, track);
1741 mov_write_hdlr_tag(pb, track);
1742 mov_write_minf_tag(pb, track);
1743 return update_size(pb, pos);
1746 /* transformation matrix
1750 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1751 int16_t d, int16_t tx, int16_t ty)
1753 avio_wb32(pb, a << 16); /* 16.16 format */
1754 avio_wb32(pb, b << 16); /* 16.16 format */
1755 avio_wb32(pb, 0); /* u in 2.30 format */
1756 avio_wb32(pb, c << 16); /* 16.16 format */
1757 avio_wb32(pb, d << 16); /* 16.16 format */
1758 avio_wb32(pb, 0); /* v in 2.30 format */
1759 avio_wb32(pb, tx << 16); /* 16.16 format */
1760 avio_wb32(pb, ty << 16); /* 16.16 format */
1761 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1764 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1766 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1767 track->timescale, AV_ROUND_UP);
1768 int version = duration < INT32_MAX ? 0 : 1;
1771 if (track->mode == MODE_ISM)
1774 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1775 ffio_wfourcc(pb, "tkhd");
1776 avio_w8(pb, version);
1777 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1778 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1779 MOV_TKHD_FLAG_IN_MOVIE);
1781 avio_wb64(pb, track->time);
1782 avio_wb64(pb, track->time);
1784 avio_wb32(pb, track->time); /* creation time */
1785 avio_wb32(pb, track->time); /* modification time */
1787 avio_wb32(pb, track->track_id); /* track-id */
1788 avio_wb32(pb, 0); /* reserved */
1790 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1792 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1794 avio_wb32(pb, 0); /* reserved */
1795 avio_wb32(pb, 0); /* reserved */
1796 avio_wb16(pb, 0); /* layer */
1797 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1798 /* Volume, only for audio */
1799 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1800 avio_wb16(pb, 0x0100);
1803 avio_wb16(pb, 0); /* reserved */
1805 /* Matrix structure */
1806 if (st && st->metadata) {
1807 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1808 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1810 if (rotation == 90) {
1811 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1812 } else if (rotation == 180) {
1813 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1814 } else if (rotation == 270) {
1815 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1817 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1819 /* Track width and height, for visual only */
1820 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1821 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1822 if (track->mode == MODE_MOV) {
1823 avio_wb32(pb, track->enc->width << 16);
1824 avio_wb32(pb, track->height << 16);
1826 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1827 if (!sample_aspect_ratio || track->height != track->enc->height)
1828 sample_aspect_ratio = 1;
1829 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1830 avio_wb32(pb, track->height * 0x10000);
1839 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1841 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1842 track->enc->sample_aspect_ratio.den);
1844 int64_t pos = avio_tell(pb);
1846 avio_wb32(pb, 0); /* size */
1847 ffio_wfourcc(pb, "tapt");
1850 ffio_wfourcc(pb, "clef");
1852 avio_wb32(pb, width << 16);
1853 avio_wb32(pb, track->enc->height << 16);
1856 ffio_wfourcc(pb, "prof");
1858 avio_wb32(pb, width << 16);
1859 avio_wb32(pb, track->enc->height << 16);
1862 ffio_wfourcc(pb, "enof");
1864 avio_wb32(pb, track->enc->width << 16);
1865 avio_wb32(pb, track->enc->height << 16);
1867 return update_size(pb, pos);
1870 // This box seems important for the psp playback ... without it the movie seems to hang
1871 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1873 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1874 track->timescale, AV_ROUND_UP);
1875 int version = duration < INT32_MAX ? 0 : 1;
1876 int entry_size, entry_count, size;
1877 int64_t delay, start_ct = track->cluster[0].cts;
1878 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1879 track->timescale, AV_ROUND_DOWN);
1880 version |= delay < INT32_MAX ? 0 : 1;
1882 entry_size = (version == 1) ? 20 : 12;
1883 entry_count = 1 + (delay > 0);
1884 size = 24 + entry_count * entry_size;
1886 /* write the atom data */
1887 avio_wb32(pb, size);
1888 ffio_wfourcc(pb, "edts");
1889 avio_wb32(pb, size - 8);
1890 ffio_wfourcc(pb, "elst");
1891 avio_w8(pb, version);
1892 avio_wb24(pb, 0); /* flags */
1894 avio_wb32(pb, entry_count);
1895 if (delay > 0) { /* add an empty edit to delay presentation */
1897 avio_wb64(pb, delay);
1900 avio_wb32(pb, delay);
1903 avio_wb32(pb, 0x00010000);
1905 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1906 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1912 avio_wb64(pb, duration);
1913 avio_wb64(pb, start_ct);
1915 avio_wb32(pb, duration);
1916 avio_wb32(pb, start_ct);
1918 avio_wb32(pb, 0x00010000);
1922 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1924 avio_wb32(pb, 20); // size
1925 ffio_wfourcc(pb, "tref");
1926 avio_wb32(pb, 12); // size (subatom)
1927 avio_wl32(pb, track->tref_tag);
1928 avio_wb32(pb, track->tref_id);
1932 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1933 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1935 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1936 ffio_wfourcc(pb, "uuid");
1937 ffio_wfourcc(pb, "USMT");
1938 avio_wb32(pb, 0x21d24fce);
1939 avio_wb32(pb, 0xbb88695c);
1940 avio_wb32(pb, 0xfac9c740);
1941 avio_wb32(pb, 0x1c); // another size here!
1942 ffio_wfourcc(pb, "MTDT");
1943 avio_wb32(pb, 0x00010012);
1944 avio_wb32(pb, 0x0a);
1945 avio_wb32(pb, 0x55c40000);
1951 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1953 AVFormatContext *ctx = track->rtp_ctx;
1954 char buf[1000] = "";
1957 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1958 NULL, NULL, 0, 0, ctx);
1959 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1962 avio_wb32(pb, len + 24);
1963 ffio_wfourcc(pb, "udta");
1964 avio_wb32(pb, len + 16);
1965 ffio_wfourcc(pb, "hnti");
1966 avio_wb32(pb, len + 8);
1967 ffio_wfourcc(pb, "sdp ");
1968 avio_write(pb, buf, len);
1972 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1973 MOVTrack *track, AVStream *st)
1975 int64_t pos = avio_tell(pb);
1976 avio_wb32(pb, 0); /* size */
1977 ffio_wfourcc(pb, "trak");
1978 mov_write_tkhd_tag(pb, track, st);
1979 if (supports_edts(mov))
1980 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1981 if (track->tref_tag)
1982 mov_write_tref_tag(pb, track);
1983 mov_write_mdia_tag(pb, track);
1984 if (track->mode == MODE_PSP)
1985 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1986 if (track->tag == MKTAG('r','t','p',' '))
1987 mov_write_udta_sdp(pb, track);
1988 if (track->mode == MODE_MOV) {
1989 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1990 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1991 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
1992 mov_write_tapt_tag(pb, track);
1995 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
1996 mov_write_tapt_tag(pb, track);
1999 return update_size(pb, pos);
2002 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2004 int i, has_audio = 0, has_video = 0;
2005 int64_t pos = avio_tell(pb);
2006 int audio_profile = mov->iods_audio_profile;
2007 int video_profile = mov->iods_video_profile;
2008 for (i = 0; i < mov->nb_streams; i++) {
2009 if (mov->tracks[i].entry > 0) {
2010 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2011 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2014 if (audio_profile < 0)
2015 audio_profile = 0xFF - has_audio;
2016 if (video_profile < 0)
2017 video_profile = 0xFF - has_video;
2018 avio_wb32(pb, 0x0); /* size */
2019 ffio_wfourcc(pb, "iods");
2020 avio_wb32(pb, 0); /* version & flags */
2021 put_descr(pb, 0x10, 7);
2022 avio_wb16(pb, 0x004f);
2025 avio_w8(pb, audio_profile);
2026 avio_w8(pb, video_profile);
2028 return update_size(pb, pos);
2031 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2033 avio_wb32(pb, 0x20); /* size */
2034 ffio_wfourcc(pb, "trex");
2035 avio_wb32(pb, 0); /* version & flags */
2036 avio_wb32(pb, track->track_id); /* track ID */
2037 avio_wb32(pb, 1); /* default sample description index */
2038 avio_wb32(pb, 0); /* default sample duration */
2039 avio_wb32(pb, 0); /* default sample size */
2040 avio_wb32(pb, 0); /* default sample flags */
2044 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2046 int64_t pos = avio_tell(pb);
2048 avio_wb32(pb, 0x0); /* size */
2049 ffio_wfourcc(pb, "mvex");
2050 for (i = 0; i < mov->nb_streams; i++)
2051 mov_write_trex_tag(pb, &mov->tracks[i]);
2052 return update_size(pb, pos);
2055 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2057 int max_track_id = 1, i;
2058 int64_t max_track_len_temp, max_track_len = 0;
2061 for (i = 0; i < mov->nb_streams; i++) {
2062 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2063 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2065 mov->tracks[i].timescale,
2067 if (max_track_len < max_track_len_temp)
2068 max_track_len = max_track_len_temp;
2069 if (max_track_id < mov->tracks[i].track_id)
2070 max_track_id = mov->tracks[i].track_id;
2074 version = max_track_len < UINT32_MAX ? 0 : 1;
2075 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2076 ffio_wfourcc(pb, "mvhd");
2077 avio_w8(pb, version);
2078 avio_wb24(pb, 0); /* flags */
2080 avio_wb64(pb, mov->time);
2081 avio_wb64(pb, mov->time);
2083 avio_wb32(pb, mov->time); /* creation time */
2084 avio_wb32(pb, mov->time); /* modification time */
2086 avio_wb32(pb, MOV_TIMESCALE);
2087 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2089 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2090 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2091 avio_wb16(pb, 0); /* reserved */
2092 avio_wb32(pb, 0); /* reserved */
2093 avio_wb32(pb, 0); /* reserved */
2095 /* Matrix structure */
2096 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2098 avio_wb32(pb, 0); /* reserved (preview time) */
2099 avio_wb32(pb, 0); /* reserved (preview duration) */
2100 avio_wb32(pb, 0); /* reserved (poster time) */
2101 avio_wb32(pb, 0); /* reserved (selection time) */
2102 avio_wb32(pb, 0); /* reserved (selection duration) */
2103 avio_wb32(pb, 0); /* reserved (current time) */
2104 avio_wb32(pb, max_track_id + 1); /* Next track id */
2108 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2111 avio_wb32(pb, 33); /* size */
2112 ffio_wfourcc(pb, "hdlr");
2115 ffio_wfourcc(pb, "mdir");
2116 ffio_wfourcc(pb, "appl");
2123 /* helper function to write a data tag with the specified string as data */
2124 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2127 int size = 16 + strlen(data);
2128 avio_wb32(pb, size); /* size */
2129 ffio_wfourcc(pb, "data");
2132 avio_write(pb, data, strlen(data));
2136 lang = ff_mov_iso639_to_lang("und", 1);
2137 avio_wb16(pb, strlen(data)); /* string length */
2138 avio_wb16(pb, lang);
2139 avio_write(pb, data, strlen(data));
2140 return strlen(data) + 4;
2144 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2145 const char *value, int lang, int long_style)
2148 if (value && value[0]) {
2149 int64_t pos = avio_tell(pb);
2150 avio_wb32(pb, 0); /* size */
2151 ffio_wfourcc(pb, name);
2152 mov_write_string_data_tag(pb, value, lang, long_style);
2153 size = update_size(pb, pos);
2158 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2159 const char *name, const char *tag,
2162 int l, lang = 0, len, len2;
2163 AVDictionaryEntry *t, *t2 = NULL;
2166 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2169 len = strlen(t->key);
2170 snprintf(tag2, sizeof(tag2), "%s-", tag);
2171 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2172 len2 = strlen(t2->key);
2173 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2174 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2179 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2182 /* iTunes bpm number */
2183 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2185 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2186 int size = 0, tmpo = t ? atoi(t->value) : 0;
2189 avio_wb32(pb, size);
2190 ffio_wfourcc(pb, "tmpo");
2191 avio_wb32(pb, size-8); /* size */
2192 ffio_wfourcc(pb, "data");
2193 avio_wb32(pb, 0x15); //type specifier
2195 avio_wb16(pb, tmpo); // data
2200 /* iTunes track or disc number */
2201 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2202 AVFormatContext *s, int disc)
2204 AVDictionaryEntry *t = av_dict_get(s->metadata,
2205 disc ? "disc" : "track",
2207 int size = 0, track = t ? atoi(t->value) : 0;
2210 char *slash = strchr(t->value, '/');
2212 tracks = atoi(slash + 1);
2213 avio_wb32(pb, 32); /* size */
2214 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2215 avio_wb32(pb, 24); /* size */
2216 ffio_wfourcc(pb, "data");
2217 avio_wb32(pb, 0); // 8 bytes empty
2219 avio_wb16(pb, 0); // empty
2220 avio_wb16(pb, track); // track / disc number
2221 avio_wb16(pb, tracks); // total track / disc number
2222 avio_wb16(pb, 0); // empty
2228 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2229 const char *name, const char *tag,
2232 AVDictionaryEntry *t = NULL;
2234 int size = 24 + len;
2236 if (len != 1 && len != 4)
2239 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2241 num = atoi(t->value);
2243 avio_wb32(pb, size);
2244 ffio_wfourcc(pb, name);
2245 avio_wb32(pb, size - 8);
2246 ffio_wfourcc(pb, "data");
2247 avio_wb32(pb, 0x15);
2249 if (len==4) avio_wb32(pb, num);
2250 else avio_w8 (pb, num);
2255 /* iTunes meta data list */
2256 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2259 int64_t pos = avio_tell(pb);
2260 avio_wb32(pb, 0); /* size */
2261 ffio_wfourcc(pb, "ilst");
2262 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2263 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2264 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2265 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2266 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2267 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2269 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2270 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2271 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2272 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2273 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2274 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2275 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2276 mov_write_string_metadata(s, pb, "desc", "description",1);
2277 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2278 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2279 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2280 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2281 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2282 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2283 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2284 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2285 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2286 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2287 mov_write_trkn_tag(pb, mov, s, 0); // track number
2288 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2289 mov_write_tmpo_tag(pb, s);
2290 return update_size(pb, pos);
2293 /* iTunes meta data tag */
2294 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2298 int64_t pos = avio_tell(pb);
2299 avio_wb32(pb, 0); /* size */
2300 ffio_wfourcc(pb, "meta");
2302 mov_write_itunes_hdlr_tag(pb, mov, s);
2303 mov_write_ilst_tag(pb, mov, s);
2304 size = update_size(pb, pos);
2308 static int utf8len(const uint8_t *b)
2313 GET_UTF8(val, *b++, return -1;)
2319 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2323 GET_UTF8(val, *b++, return -1;)
2326 avio_wb16(pb, 0x00);
2330 static uint16_t language_code(const char *str)
2332 return (((str[0] - 0x60) & 0x1F) << 10) +
2333 (((str[1] - 0x60) & 0x1F) << 5) +
2334 (( str[2] - 0x60) & 0x1F);
2337 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2338 const char *tag, const char *str)
2340 int64_t pos = avio_tell(pb);
2341 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2342 if (!t || !utf8len(t->value))
2344 avio_wb32(pb, 0); /* size */
2345 ffio_wfourcc(pb, tag); /* type */
2346 avio_wb32(pb, 0); /* version + flags */
2347 if (!strcmp(tag, "yrrc"))
2348 avio_wb16(pb, atoi(t->value));
2350 avio_wb16(pb, language_code("eng")); /* language */
2351 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2352 if (!strcmp(tag, "albm") &&
2353 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2354 avio_w8(pb, atoi(t->value));
2356 return update_size(pb, pos);
2359 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2361 int64_t pos = avio_tell(pb);
2362 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2364 avio_wb32(pb, 0); // size
2365 ffio_wfourcc(pb, "chpl");
2366 avio_wb32(pb, 0x01000000); // version + flags
2367 avio_wb32(pb, 0); // unknown
2368 avio_w8(pb, nb_chapters);
2370 for (i = 0; i < nb_chapters; i++) {
2371 AVChapter *c = s->chapters[i];
2372 AVDictionaryEntry *t;
2373 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2375 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2376 int len = FFMIN(strlen(t->value), 255);
2378 avio_write(pb, t->value, len);
2382 return update_size(pb, pos);
2385 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2388 AVIOContext *pb_buf;
2392 ret = avio_open_dyn_buf(&pb_buf);
2396 if (mov->mode & MODE_3GP) {
2397 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2398 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2399 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2400 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2401 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2402 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2403 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2404 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2405 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2406 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2407 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2408 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2409 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2410 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2411 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2412 // currently ignored by mov.c
2413 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2414 // add support for libquicktime, this atom is also actually read by mov.c
2415 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2416 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2417 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2419 /* iTunes meta data */
2420 mov_write_meta_tag(pb_buf, mov, s);
2424 mov_write_chpl_tag(pb_buf, s);
2426 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2427 avio_wb32(pb, size + 8);
2428 ffio_wfourcc(pb, "udta");
2429 avio_write(pb, buf, size);
2436 static void mov_write_psp_udta_tag(AVIOContext *pb,
2437 const char *str, const char *lang, int type)
2439 int len = utf8len(str) + 1;
2442 avio_wb16(pb, len * 2 + 10); /* size */
2443 avio_wb32(pb, type); /* type */
2444 avio_wb16(pb, language_code(lang)); /* language */
2445 avio_wb16(pb, 0x01); /* ? */
2446 ascii_to_wc(pb, str);
2449 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2451 MOVMuxContext *mov = s->priv_data;
2452 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2456 pos = avio_tell(pb);
2457 avio_wb32(pb, 0); /* size placeholder*/
2458 ffio_wfourcc(pb, "uuid");
2459 ffio_wfourcc(pb, "USMT");
2460 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2461 avio_wb32(pb, 0xbb88695c);
2462 avio_wb32(pb, 0xfac9c740);
2464 pos2 = avio_tell(pb);
2465 avio_wb32(pb, 0); /* size placeholder*/
2466 ffio_wfourcc(pb, "MTDT");
2470 avio_wb16(pb, 0x0C); /* size */
2471 avio_wb32(pb, 0x0B); /* type */
2472 avio_wb16(pb, language_code("und")); /* language */
2473 avio_wb16(pb, 0x0); /* ? */
2474 avio_wb16(pb, 0x021C); /* data */
2477 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2478 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2479 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2481 update_size(pb, pos2);
2482 return update_size(pb, pos);
2488 static void build_chunks(MOVTrack *trk)
2491 MOVIentry *chunk = &trk->cluster[0];
2492 uint64_t chunkSize = chunk->size;
2493 chunk->chunkNum = 1;
2494 if (trk->chunkCount)
2496 trk->chunkCount = 1;
2497 for (i = 1; i<trk->entry; i++){
2498 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2499 chunkSize + trk->cluster[i].size < (1<<20)){
2500 chunkSize += trk->cluster[i].size;
2501 chunk->samples_in_chunk += trk->cluster[i].entries;
2503 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2504 chunk=&trk->cluster[i];
2505 chunkSize = chunk->size;
2511 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2515 int64_t pos = avio_tell(pb);
2516 avio_wb32(pb, 0); /* size placeholder*/
2517 ffio_wfourcc(pb, "moov");
2519 for (i = 0; i < mov->nb_streams; i++) {
2520 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2523 mov->tracks[i].time = mov->time;
2524 mov->tracks[i].track_id = i + 1;
2526 if (mov->tracks[i].entry)
2527 build_chunks(&mov->tracks[i]);
2530 if (mov->chapter_track)
2531 for (i = 0; i < s->nb_streams; i++) {
2532 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2533 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2535 for (i = 0; i < mov->nb_streams; i++) {
2536 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2537 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2538 mov->tracks[i].tref_id =
2539 mov->tracks[mov->tracks[i].src_track].track_id;
2542 for (i = 0; i < mov->nb_streams; i++) {
2543 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2544 int src_trk = mov->tracks[i].src_track;
2545 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2546 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2547 //src_trk may have a different timescale than the tmcd track
2548 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2549 mov->tracks[i].timescale,
2550 mov->tracks[src_trk].timescale);
2554 mov_write_mvhd_tag(pb, mov);
2555 if (mov->mode != MODE_MOV && !mov->iods_skip)
2556 mov_write_iods_tag(pb, mov);
2557 for (i = 0; i < mov->nb_streams; i++) {
2558 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2559 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2562 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2563 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2565 if (mov->mode == MODE_PSP)
2566 mov_write_uuidusmt_tag(pb, s);
2568 mov_write_udta_tag(pb, mov, s);
2570 return update_size(pb, pos);
2573 static void param_write_int(AVIOContext *pb, const char *name, int value)
2575 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2578 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2580 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2583 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2586 len = FFMIN(sizeof(buf) / 2 - 1, len);
2587 ff_data_to_hex(buf, value, len, 0);
2588 buf[2 * len] = '\0';
2589 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2592 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2594 int64_t pos = avio_tell(pb);
2596 static const uint8_t uuid[] = {
2597 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2598 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2602 ffio_wfourcc(pb, "uuid");
2603 avio_write(pb, uuid, sizeof(uuid));
2606 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2607 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2608 avio_printf(pb, "<head>\n");
2610 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2612 avio_printf(pb, "</head>\n");
2613 avio_printf(pb, "<body>\n");
2614 avio_printf(pb, "<switch>\n");
2615 for (i = 0; i < mov->nb_streams; i++) {
2616 MOVTrack *track = &mov->tracks[i];
2618 /* track->track_id is initialized in write_moov, and thus isn't known
2620 int track_id = i + 1;
2622 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2624 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2629 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2630 track->enc->bit_rate);
2631 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2632 param_write_int(pb, "trackID", track_id);
2633 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2634 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2636 int size = track->enc->extradata_size;
2637 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2639 param_write_hex(pb, "CodecPrivateData",
2640 ptr ? ptr : track->enc->extradata,
2644 param_write_string(pb, "FourCC", "H264");
2645 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2646 param_write_string(pb, "FourCC", "WVC1");
2647 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2648 track->enc->extradata_size);
2650 param_write_int(pb, "MaxWidth", track->enc->width);
2651 param_write_int(pb, "MaxHeight", track->enc->height);
2652 param_write_int(pb, "DisplayWidth", track->enc->width);
2653 param_write_int(pb, "DisplayHeight", track->enc->height);
2655 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2656 param_write_string(pb, "FourCC", "AACL");
2657 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2658 param_write_string(pb, "FourCC", "WMAP");
2660 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2661 track->enc->extradata_size);
2662 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2663 track->enc->codec_id));
2664 param_write_int(pb, "Channels", track->enc->channels);
2665 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2666 param_write_int(pb, "BitsPerSample", 16);
2667 param_write_int(pb, "PacketSize", track->enc->block_align ?
2668 track->enc->block_align : 4);
2670 avio_printf(pb, "</%s>\n", type);
2672 avio_printf(pb, "</switch>\n");
2673 avio_printf(pb, "</body>\n");
2674 avio_printf(pb, "</smil>\n");
2676 return update_size(pb, pos);
2679 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2682 ffio_wfourcc(pb, "mfhd");
2684 avio_wb32(pb, mov->fragments);
2688 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2689 MOVTrack *track, int64_t moof_offset)
2691 int64_t pos = avio_tell(pb);
2692 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2693 MOV_TFHD_BASE_DATA_OFFSET;
2694 if (!track->entry) {
2695 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2697 flags |= MOV_TFHD_DEFAULT_FLAGS;
2699 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2700 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2702 /* Don't set a default sample size, the silverlight player refuses
2703 * to play files with that set. Don't set a default sample duration,
2704 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2705 * file format says it MUST NOT be set. */
2706 if (track->mode == MODE_ISM)
2707 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2708 MOV_TFHD_BASE_DATA_OFFSET);
2710 avio_wb32(pb, 0); /* size placeholder */
2711 ffio_wfourcc(pb, "tfhd");
2712 avio_w8(pb, 0); /* version */
2713 avio_wb24(pb, flags);
2715 avio_wb32(pb, track->track_id); /* track-id */
2716 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2717 avio_wb64(pb, moof_offset);
2718 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2719 track->default_duration = get_cluster_duration(track, 0);
2720 avio_wb32(pb, track->default_duration);
2722 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2723 track->default_size = track->entry ? track->cluster[0].size : 1;
2724 avio_wb32(pb, track->default_size);
2726 track->default_size = -1;
2728 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2729 track->default_sample_flags =
2730 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2731 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2732 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2733 avio_wb32(pb, track->default_sample_flags);
2736 return update_size(pb, pos);
2739 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2741 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2742 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2745 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2746 MOVTrack *track, int moof_size)
2748 int64_t pos = avio_tell(pb);
2749 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2752 for (i = 0; i < track->entry; i++) {
2753 if (get_cluster_duration(track, i) != track->default_duration)
2754 flags |= MOV_TRUN_SAMPLE_DURATION;
2755 if (track->cluster[i].size != track->default_size)
2756 flags |= MOV_TRUN_SAMPLE_SIZE;
2757 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2758 flags |= MOV_TRUN_SAMPLE_FLAGS;
2760 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2761 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2762 if (track->flags & MOV_TRACK_CTTS)
2763 flags |= MOV_TRUN_SAMPLE_CTS;
2765 avio_wb32(pb, 0); /* size placeholder */
2766 ffio_wfourcc(pb, "trun");
2767 avio_w8(pb, 0); /* version */
2768 avio_wb24(pb, flags);
2770 avio_wb32(pb, track->entry); /* sample count */
2771 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2772 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2773 track->track_id != 1)
2774 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2776 avio_wb32(pb, moof_size + 8 + track->data_offset +
2777 track->cluster[0].pos); /* data offset */
2778 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2779 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2781 for (i = 0; i < track->entry; i++) {
2782 if (flags & MOV_TRUN_SAMPLE_DURATION)
2783 avio_wb32(pb, get_cluster_duration(track, i));
2784 if (flags & MOV_TRUN_SAMPLE_SIZE)
2785 avio_wb32(pb, track->cluster[i].size);
2786 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2787 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2788 if (flags & MOV_TRUN_SAMPLE_CTS)
2789 avio_wb32(pb, track->cluster[i].cts);
2792 return update_size(pb, pos);
2795 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2797 int64_t pos = avio_tell(pb);
2798 static const uint8_t uuid[] = {
2799 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2800 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2803 avio_wb32(pb, 0); /* size placeholder */
2804 ffio_wfourcc(pb, "uuid");
2805 avio_write(pb, uuid, sizeof(uuid));
2808 avio_wb64(pb, track->frag_start);
2809 avio_wb64(pb, track->start_dts + track->track_duration -
2810 track->cluster[0].dts);
2812 return update_size(pb, pos);
2815 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2816 MOVTrack *track, int entry)
2818 int n = track->nb_frag_info - 1 - entry, i;
2819 int size = 8 + 16 + 4 + 1 + 16*n;
2820 static const uint8_t uuid[] = {
2821 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2822 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2828 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2829 avio_wb32(pb, size);
2830 ffio_wfourcc(pb, "uuid");
2831 avio_write(pb, uuid, sizeof(uuid));
2835 for (i = 0; i < n; i++) {
2836 int index = entry + 1 + i;
2837 avio_wb64(pb, track->frag_info[index].time);
2838 avio_wb64(pb, track->frag_info[index].duration);
2840 if (n < mov->ism_lookahead) {
2841 int free_size = 16 * (mov->ism_lookahead - n);
2842 avio_wb32(pb, free_size);
2843 ffio_wfourcc(pb, "free");
2844 ffio_fill(pb, 0, free_size - 8);
2850 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2853 int64_t pos = avio_tell(pb);
2855 for (i = 0; i < mov->ism_lookahead; i++) {
2856 /* Update the tfrf tag for the last ism_lookahead fragments,
2857 * nb_frag_info - 1 is the next fragment to be written. */
2858 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2860 avio_seek(pb, pos, SEEK_SET);
2864 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2865 MOVTrack *track, int64_t moof_offset,
2868 int64_t pos = avio_tell(pb);
2869 avio_wb32(pb, 0); /* size placeholder */
2870 ffio_wfourcc(pb, "traf");
2872 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2873 mov_write_trun_tag(pb, mov, track, moof_size);
2874 if (mov->mode == MODE_ISM) {
2875 mov_write_tfxd_tag(pb, track);
2877 if (mov->ism_lookahead) {
2878 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2880 track->tfrf_offset = avio_tell(pb);
2881 avio_wb32(pb, 8 + size);
2882 ffio_wfourcc(pb, "free");
2883 for (i = 0; i < size; i++)
2888 return update_size(pb, pos);
2891 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2892 int tracks, int moof_size)
2894 int64_t pos = avio_tell(pb);
2897 avio_wb32(pb, 0); /* size placeholder */
2898 ffio_wfourcc(pb, "moof");
2900 mov_write_mfhd_tag(pb, mov);
2901 for (i = 0; i < mov->nb_streams; i++) {
2902 MOVTrack *track = &mov->tracks[i];
2903 if (tracks >= 0 && i != tracks)
2907 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2910 return update_size(pb, pos);
2913 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2915 AVIOContext *avio_buf;
2918 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2920 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2921 moof_size = ffio_close_null_buf(avio_buf);
2922 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2925 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2927 int64_t pos = avio_tell(pb);
2930 avio_wb32(pb, 0); /* size placeholder */
2931 ffio_wfourcc(pb, "tfra");
2932 avio_w8(pb, 1); /* version */
2935 avio_wb32(pb, track->track_id);
2936 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2937 avio_wb32(pb, track->nb_frag_info);
2938 for (i = 0; i < track->nb_frag_info; i++) {
2939 avio_wb64(pb, track->frag_info[i].time);
2940 avio_wb64(pb, track->frag_info[i].offset);
2941 avio_w8(pb, 1); /* traf number */
2942 avio_w8(pb, 1); /* trun number */
2943 avio_w8(pb, 1); /* sample number */
2946 return update_size(pb, pos);
2949 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2951 int64_t pos = avio_tell(pb);
2954 avio_wb32(pb, 0); /* size placeholder */
2955 ffio_wfourcc(pb, "mfra");
2956 /* An empty mfra atom is enough to indicate to the publishing point that
2957 * the stream has ended. */
2958 if (mov->flags & FF_MOV_FLAG_ISML)
2959 return update_size(pb, pos);
2961 for (i = 0; i < mov->nb_streams; i++) {
2962 MOVTrack *track = &mov->tracks[i];
2963 if (track->nb_frag_info)
2964 mov_write_tfra_tag(pb, track);
2968 ffio_wfourcc(pb, "mfro");
2969 avio_wb32(pb, 0); /* version + flags */
2970 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2972 return update_size(pb, pos);
2975 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2977 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2978 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2980 mov->mdat_pos = avio_tell(pb);
2981 avio_wb32(pb, 0); /* size placeholder*/
2982 ffio_wfourcc(pb, "mdat");
2986 /* TODO: This needs to be more general */
2987 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2989 MOVMuxContext *mov = s->priv_data;
2990 int64_t pos = avio_tell(pb);
2991 int has_h264 = 0, has_video = 0;
2995 for (i = 0; i < s->nb_streams; i++) {
2996 AVStream *st = s->streams[i];
2997 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2999 if (st->codec->codec_id == AV_CODEC_ID_H264)
3003 avio_wb32(pb, 0); /* size */
3004 ffio_wfourcc(pb, "ftyp");
3006 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3007 ffio_wfourcc(pb, mov->major_brand);
3008 else if (mov->mode == MODE_3GP) {
3009 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3010 minor = has_h264 ? 0x100 : 0x200;
3011 } else if (mov->mode & MODE_3G2) {
3012 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3013 minor = has_h264 ? 0x20000 : 0x10000;
3014 } else if (mov->mode == MODE_PSP)
3015 ffio_wfourcc(pb, "MSNV");
3016 else if (mov->mode == MODE_MP4)
3017 ffio_wfourcc(pb, "isom");
3018 else if (mov->mode == MODE_IPOD)
3019 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3020 else if (mov->mode == MODE_ISM)
3021 ffio_wfourcc(pb, "isml");
3022 else if (mov->mode == MODE_F4V)
3023 ffio_wfourcc(pb, "f4v ");
3025 ffio_wfourcc(pb, "qt ");
3027 avio_wb32(pb, minor);
3029 if (mov->mode == MODE_MOV)
3030 ffio_wfourcc(pb, "qt ");
3031 else if (mov->mode == MODE_ISM) {
3032 ffio_wfourcc(pb, "piff");
3033 ffio_wfourcc(pb, "iso2");
3035 ffio_wfourcc(pb, "isom");
3036 ffio_wfourcc(pb, "iso2");
3038 ffio_wfourcc(pb, "avc1");
3041 if (mov->mode == MODE_3GP)
3042 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3043 else if (mov->mode & MODE_3G2)
3044 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3045 else if (mov->mode == MODE_PSP)
3046 ffio_wfourcc(pb, "MSNV");
3047 else if (mov->mode == MODE_MP4)
3048 ffio_wfourcc(pb, "mp41");
3049 return update_size(pb, pos);
3052 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3054 AVCodecContext *video_codec = s->streams[0]->codec;
3055 AVCodecContext *audio_codec = s->streams[1]->codec;
3056 int audio_rate = audio_codec->sample_rate;
3057 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
3058 int audio_kbitrate = audio_codec->bit_rate / 1000;
3059 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3061 avio_wb32(pb, 0x94); /* size */
3062 ffio_wfourcc(pb, "uuid");
3063 ffio_wfourcc(pb, "PROF");
3065 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3066 avio_wb32(pb, 0xbb88695c);
3067 avio_wb32(pb, 0xfac9c740);
3069 avio_wb32(pb, 0x0); /* ? */
3070 avio_wb32(pb, 0x3); /* 3 sections ? */
3072 avio_wb32(pb, 0x14); /* size */
3073 ffio_wfourcc(pb, "FPRF");
3074 avio_wb32(pb, 0x0); /* ? */
3075 avio_wb32(pb, 0x0); /* ? */
3076 avio_wb32(pb, 0x0); /* ? */
3078 avio_wb32(pb, 0x2c); /* size */
3079 ffio_wfourcc(pb, "APRF"); /* audio */
3081 avio_wb32(pb, 0x2); /* TrackID */
3082 ffio_wfourcc(pb, "mp4a");
3083 avio_wb32(pb, 0x20f);
3085 avio_wb32(pb, audio_kbitrate);
3086 avio_wb32(pb, audio_kbitrate);
3087 avio_wb32(pb, audio_rate);
3088 avio_wb32(pb, audio_codec->channels);
3090 avio_wb32(pb, 0x34); /* size */
3091 ffio_wfourcc(pb, "VPRF"); /* video */
3093 avio_wb32(pb, 0x1); /* TrackID */
3094 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3095 ffio_wfourcc(pb, "avc1");
3096 avio_wb16(pb, 0x014D);
3097 avio_wb16(pb, 0x0015);
3099 ffio_wfourcc(pb, "mp4v");
3100 avio_wb16(pb, 0x0000);
3101 avio_wb16(pb, 0x0103);
3104 avio_wb32(pb, video_kbitrate);
3105 avio_wb32(pb, video_kbitrate);
3106 avio_wb32(pb, frame_rate);
3107 avio_wb32(pb, frame_rate);
3108 avio_wb16(pb, video_codec->width);
3109 avio_wb16(pb, video_codec->height);
3110 avio_wb32(pb, 0x010001); /* ? */
3113 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3116 int i, closed_gop = 0;
3118 for (i = 0; i < pkt->size - 4; i++) {
3119 c = (c << 8) + pkt->data[i];
3120 if (c == 0x1b8) { // gop
3121 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3122 } else if (c == 0x100) { // pic
3123 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3124 if (!temp_ref || closed_gop) // I picture is not reordered
3125 *flags = MOV_SYNC_SAMPLE;
3127 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3134 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3136 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3137 int seq = 0, entry = 0;
3138 int key = pkt->flags & AV_PKT_FLAG_KEY;
3139 start = find_next_marker(pkt->data, end);
3140 for (next = start; next < end; start = next) {
3141 next = find_next_marker(start + 4, end);
3142 switch (AV_RB32(start)) {
3143 case VC1_CODE_SEQHDR:
3146 case VC1_CODE_ENTRYPOINT:
3149 case VC1_CODE_SLICE:
3150 trk->vc1_info.slices = 1;
3154 if (!trk->entry && !fragment) {
3155 /* First packet in first fragment */
3156 trk->vc1_info.first_packet_seq = seq;
3157 trk->vc1_info.first_packet_entry = entry;
3158 } else if ((seq && !trk->vc1_info.packet_seq) ||
3159 (entry && !trk->vc1_info.packet_entry)) {
3161 for (i = 0; i < trk->entry; i++)
3162 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3163 trk->has_keyframes = 0;
3165 trk->vc1_info.packet_seq = 1;
3167 trk->vc1_info.packet_entry = 1;
3169 /* First fragment */
3170 if ((!seq || trk->vc1_info.first_packet_seq) &&
3171 (!entry || trk->vc1_info.first_packet_entry)) {
3172 /* First packet had the same headers as this one, readd the
3173 * sync sample flag. */
3174 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3175 trk->has_keyframes = 1;
3179 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3181 else if (trk->vc1_info.packet_seq)
3183 else if (trk->vc1_info.packet_entry)
3186 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3187 trk->has_keyframes++;
3191 static int mov_flush_fragment(AVFormatContext *s)
3193 MOVMuxContext *mov = s->priv_data;
3194 int i, first_track = -1;
3195 int64_t mdat_size = 0;
3197 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3200 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3201 int64_t pos = avio_tell(s->pb);
3203 int buf_size, moov_size;
3205 for (i = 0; i < mov->nb_streams; i++)
3206 if (!mov->tracks[i].entry)
3208 /* Don't write the initial moov unless all tracks have data */
3209 if (i < mov->nb_streams)
3212 moov_size = get_moov_size(s);
3213 for (i = 0; i < mov->nb_streams; i++)
3214 mov->tracks[i].data_offset = pos + moov_size + 8;
3216 mov_write_moov_tag(s->pb, mov, s);
3218 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3219 mov->mdat_buf = NULL;
3220 avio_wb32(s->pb, buf_size + 8);
3221 ffio_wfourcc(s->pb, "mdat");
3222 avio_write(s->pb, buf, buf_size);
3227 for (i = 0; i < mov->nb_streams; i++) {
3228 if (mov->tracks[i].entry)
3229 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3230 mov->tracks[i].track_duration -
3231 mov->tracks[i].cluster[0].dts;
3232 mov->tracks[i].entry = 0;
3238 for (i = 0; i < mov->nb_streams; i++) {
3239 MOVTrack *track = &mov->tracks[i];
3240 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3241 track->data_offset = 0;
3243 track->data_offset = mdat_size;
3244 if (!track->mdat_buf)
3246 mdat_size += avio_tell(track->mdat_buf);
3247 if (first_track < 0)
3254 for (i = 0; i < mov->nb_streams; i++) {
3255 MOVTrack *track = &mov->tracks[i];
3256 int buf_size, write_moof = 1, moof_tracks = -1;
3258 int64_t duration = 0;
3261 duration = track->start_dts + track->track_duration -
3262 track->cluster[0].dts;
3263 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3264 if (!track->mdat_buf)
3266 mdat_size = avio_tell(track->mdat_buf);
3269 write_moof = i == first_track;
3273 MOVFragmentInfo *info;
3275 track->nb_frag_info++;
3276 if (track->nb_frag_info >= track->frag_info_capacity) {
3277 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3278 if (av_reallocp_array(&track->frag_info,
3280 sizeof(*track->frag_info)))
3281 return AVERROR(ENOMEM);
3282 track->frag_info_capacity = new_capacity;
3284 info = &track->frag_info[track->nb_frag_info - 1];
3285 info->offset = avio_tell(s->pb);
3286 info->time = mov->tracks[i].frag_start;
3287 info->duration = duration;
3288 mov_write_tfrf_tags(s->pb, mov, track);
3290 mov_write_moof_tag(s->pb, mov, moof_tracks);
3291 info->tfrf_offset = track->tfrf_offset;
3294 avio_wb32(s->pb, mdat_size + 8);
3295 ffio_wfourcc(s->pb, "mdat");
3299 track->frag_start += duration;
3301 if (!track->mdat_buf)
3303 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3304 track->mdat_buf = NULL;
3306 avio_write(s->pb, buf, buf_size);
3316 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3318 MOVMuxContext *mov = s->priv_data;
3319 AVIOContext *pb = s->pb;
3320 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3321 AVCodecContext *enc = trk->enc;
3322 unsigned int samples_in_chunk = 0;
3323 int size = pkt->size;
3324 uint8_t *reformatted_data = NULL;
3327 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3328 if (duration < 0 || duration > INT_MAX) {
3329 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3333 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3334 pkt->pts = AV_NOPTS_VALUE;
3337 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3339 if (mov->fragments > 0) {
3340 if (!trk->mdat_buf) {
3341 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3346 if (!mov->mdat_buf) {
3347 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3354 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3355 /* We must find out how many AMR blocks there are in one packet */
3356 static uint16_t packed_size[16] =
3357 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3360 while (len < size && samples_in_chunk < 100) {
3361 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3364 if (samples_in_chunk > 1) {
3365 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3368 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3369 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3370 samples_in_chunk = enc->frame_size;
3371 } else if (trk->sample_size)
3372 samples_in_chunk = size / trk->sample_size;
3374 samples_in_chunk = 1;
3376 /* copy extradata if it exists */
3377 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3378 trk->vos_len = enc->extradata_size;
3379 trk->vos_data = av_malloc(trk->vos_len);
3380 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3383 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3384 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3385 if (!s->streams[pkt->stream_index]->nb_frames) {
3386 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3387 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3388 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3391 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3393 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3394 /* from x264 or from bytestream h264 */
3395 /* nal reformating needed */
3396 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3397 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3399 avio_write(pb, reformatted_data, size);
3401 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3403 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3404 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3405 /* extradata is Annex B, assume the bitstream is too and convert it */
3406 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3407 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3408 avio_write(pb, reformatted_data, size);
3410 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3413 avio_write(pb, pkt->data, size);
3416 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3417 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3418 /* copy frame to create needed atoms */
3419 trk->vos_len = size;
3420 trk->vos_data = av_malloc(size);
3422 return AVERROR(ENOMEM);
3423 memcpy(trk->vos_data, pkt->data, size);
3426 if (trk->entry >= trk->cluster_capacity) {
3427 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3428 if (av_reallocp_array(&trk->cluster, new_capacity,
3429 sizeof(*trk->cluster)))
3430 return AVERROR(ENOMEM);
3431 trk->cluster_capacity = new_capacity;
3434 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3435 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3436 trk->cluster[trk->entry].chunkNum = 0;
3437 trk->cluster[trk->entry].size = size;
3438 trk->cluster[trk->entry].entries = samples_in_chunk;
3439 trk->cluster[trk->entry].dts = pkt->dts;
3440 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3441 /* First packet of a new fragment. We already wrote the duration
3442 * of the last packet of the previous fragment based on track_duration,
3443 * which might not exactly match our dts. Therefore adjust the dts
3444 * of this packet to be what the previous packets duration implies. */
3445 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3447 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3448 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3450 if (trk->start_dts == AV_NOPTS_VALUE)
3451 trk->start_dts = pkt->dts;
3452 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3453 trk->last_sample_is_subtitle_end = 0;
3455 if (pkt->pts == AV_NOPTS_VALUE) {
3456 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3457 pkt->pts = pkt->dts;
3459 if (pkt->dts != pkt->pts)
3460 trk->flags |= MOV_TRACK_CTTS;
3461 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3462 trk->cluster[trk->entry].flags = 0;
3463 if (enc->codec_id == AV_CODEC_ID_VC1) {
3464 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3465 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3466 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3467 trk->entry > 0) { // force sync sample for the first key frame
3468 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3469 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3470 trk->flags |= MOV_TRACK_STPS;
3472 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3474 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3475 trk->has_keyframes++;
3478 trk->sample_count += samples_in_chunk;
3479 mov->mdat_size += size;
3481 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3482 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3483 reformatted_data, size);
3484 av_free(reformatted_data);
3488 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3490 MOVMuxContext *mov = s->priv_data;
3491 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3492 AVCodecContext *enc = trk->enc;
3493 int64_t frag_duration = 0;
3494 int size = pkt->size;
3497 return 0; /* Discard 0 sized packets */
3499 if (trk->entry && pkt->stream_index < s->nb_streams)
3500 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3501 s->streams[pkt->stream_index]->time_base,
3503 if ((mov->max_fragment_duration &&
3504 frag_duration >= mov->max_fragment_duration) ||
3505 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3506 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3507 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3508 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3509 if (frag_duration >= mov->min_fragment_duration)
3510 mov_flush_fragment(s);
3513 return ff_mov_write_packet(s, pkt);
3516 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3520 uint8_t data[2] = {0};
3523 av_init_packet(&end);
3524 end.size = sizeof(data);
3529 end.stream_index = stream_index;
3531 ret = mov_write_single_packet(s, &end);
3532 av_free_packet(&end);
3537 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3540 mov_flush_fragment(s);
3544 MOVMuxContext *mov = s->priv_data;
3546 if (!pkt->size) return 0; /* Discard 0 sized packets */
3549 * Subtitles require special handling.
3551 * 1) For full complaince, every track must have a sample at
3552 * dts == 0, which is rarely true for subtitles. So, as soon
3553 * as we see any packet with dts > 0, write an empty subtitle
3554 * at dts == 0 for any subtitle track with no samples in it.
3556 * 2) For each subtitle track, check if the current packet's
3557 * dts is past the duration of the last subtitle sample. If
3558 * so, we now need to write an end sample for that subtitle.
3560 * This must be done conditionally to allow for subtitles that
3561 * immediately replace each other, in which case an end sample
3562 * is not needed, and is, in fact, actively harmful.
3564 * 3) See mov_write_trailer for how the final end sample is
3567 for (i = 0; i < mov->nb_streams; i++) {
3568 MOVTrack *trk = &mov->tracks[i];
3571 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3572 trk->track_duration < pkt->dts &&
3573 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3574 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3575 if (ret < 0) return ret;
3576 trk->last_sample_is_subtitle_end = 1;
3580 return mov_write_single_packet(s, pkt);
3584 // QuickTime chapters involve an additional text track with the chapter names
3585 // as samples, and a tref pointing from the other tracks to the chapter one.
3586 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3590 MOVMuxContext *mov = s->priv_data;
3591 MOVTrack *track = &mov->tracks[tracknum];
3592 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3595 track->mode = mov->mode;
3596 track->tag = MKTAG('t','e','x','t');
3597 track->timescale = MOV_TIMESCALE;
3598 track->enc = avcodec_alloc_context3(NULL);
3600 return AVERROR(ENOMEM);
3601 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3603 // These properties are required to make QT recognize the chapter track
3604 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3605 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3606 return AVERROR(ENOMEM);
3607 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3609 if (avio_open_dyn_buf(&pb) >= 0) {
3613 /* Stub header (usually for Quicktime chapter track) */
3615 avio_wb32(pb, 0x01); // displayFlags
3616 avio_w8(pb, 0x00); // horizontal justification
3617 avio_w8(pb, 0x00); // vertical justification
3618 avio_w8(pb, 0x00); // bgColourRed
3619 avio_w8(pb, 0x00); // bgColourGreen
3620 avio_w8(pb, 0x00); // bgColourBlue
3621 avio_w8(pb, 0x00); // bgColourAlpha
3623 avio_wb16(pb, 0x00); // defTextBoxTop
3624 avio_wb16(pb, 0x00); // defTextBoxLeft
3625 avio_wb16(pb, 0x00); // defTextBoxBottom
3626 avio_wb16(pb, 0x00); // defTextBoxRight
3628 avio_wb16(pb, 0x00); // startChar
3629 avio_wb16(pb, 0x00); // endChar
3630 avio_wb16(pb, 0x01); // fontID
3631 avio_w8(pb, 0x00); // fontStyleFlags
3632 avio_w8(pb, 0x00); // fontSize
3633 avio_w8(pb, 0x00); // fgColourRed
3634 avio_w8(pb, 0x00); // fgColourGreen
3635 avio_w8(pb, 0x00); // fgColourBlue
3636 avio_w8(pb, 0x00); // fgColourAlpha
3638 avio_wb32(pb, 0x0D); // box size
3639 ffio_wfourcc(pb, "ftab"); // box atom name
3640 avio_wb16(pb, 0x01); // entry count
3642 avio_wb16(pb, 0x01); // font ID
3643 avio_w8(pb, 0x00); // font name length
3645 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3646 track->enc->extradata = buf;
3647 track->enc->extradata_size = size;
3654 for (i = 0; i < s->nb_chapters; i++) {
3655 AVChapter *c = s->chapters[i];
3656 AVDictionaryEntry *t;
3658 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3659 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3660 pkt.duration = end - pkt.dts;
3662 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3663 len = strlen(t->value);
3665 pkt.data = av_malloc(pkt.size);
3667 return AVERROR(ENOMEM);
3668 AV_WB16(pkt.data, len);
3669 memcpy(pkt.data + 2, t->value, len);
3670 ff_mov_write_packet(s, &pkt);
3671 av_freep(&pkt.data);
3678 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3681 MOVMuxContext *mov = s->priv_data;
3682 MOVTrack *track = &mov->tracks[index];
3683 AVStream *src_st = s->streams[src_index];
3685 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3686 AVRational rate = find_fps(s, src_st);
3688 /* compute the frame number */
3689 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3693 /* tmcd track based on video stream */
3694 track->mode = mov->mode;
3695 track->tag = MKTAG('t','m','c','d');
3696 track->src_track = src_index;
3697 track->timescale = mov->tracks[src_index].timescale;
3698 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3699 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3701 /* encode context: tmcd data stream */
3702 track->enc = avcodec_alloc_context3(NULL);
3703 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3704 track->enc->codec_tag = track->tag;
3705 track->enc->time_base = av_inv_q(rate);
3707 /* the tmcd track just contains one packet with the frame number */
3708 pkt.data = av_malloc(pkt.size);
3709 AV_WB32(pkt.data, tc.start);
3710 ret = ff_mov_write_packet(s, &pkt);
3716 * st->disposition controls the "enabled" flag in the tkhd tag.
3717 * QuickTime will not play a track if it is not enabled. So make sure
3718 * that one track of each type (audio, video, subtitle) is enabled.
3720 * Subtitles are special. For audio and video, setting "enabled" also
3721 * makes the track "default" (i.e. it is rendered when played). For
3722 * subtitles, an "enabled" subtitle is not rendered by default, but
3723 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3726 static void enable_tracks(AVFormatContext *s)
3728 MOVMuxContext *mov = s->priv_data;
3730 uint8_t enabled[AVMEDIA_TYPE_NB];
3731 int first[AVMEDIA_TYPE_NB];
3733 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3738 for (i = 0; i < s->nb_streams; i++) {
3739 AVStream *st = s->streams[i];
3741 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3742 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3745 if (first[st->codec->codec_type] < 0)
3746 first[st->codec->codec_type] = i;
3747 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3748 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3749 enabled[st->codec->codec_type] = 1;
3753 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3755 case AVMEDIA_TYPE_VIDEO:
3756 case AVMEDIA_TYPE_AUDIO:
3757 case AVMEDIA_TYPE_SUBTITLE:
3758 if (!enabled[i] && first[i] >= 0)
3759 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3765 static void mov_free(AVFormatContext *s)
3767 MOVMuxContext *mov = s->priv_data;
3770 if (mov->chapter_track) {
3771 if (mov->tracks[mov->chapter_track].enc)
3772 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3773 av_freep(&mov->tracks[mov->chapter_track].enc);
3776 for (i = 0; i < mov->nb_streams; i++) {
3777 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3778 ff_mov_close_hinting(&mov->tracks[i]);
3779 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3780 av_freep(&mov->tracks[i].enc);
3781 av_freep(&mov->tracks[i].cluster);
3782 av_freep(&mov->tracks[i].frag_info);
3784 if (mov->tracks[i].vos_len)
3785 av_freep(&mov->tracks[i].vos_data);
3788 av_freep(&mov->tracks);
3791 static uint32_t rgb_to_yuv(uint32_t rgb)
3796 r = (rgb >> 16) & 0xFF;
3797 g = (rgb >> 8) & 0xFF;
3800 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3801 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3802 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3804 return (y << 16) | (cr << 8) | cb;
3807 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3810 int i, width = 720, height = 480;
3811 int have_palette = 0, have_size = 0;
3812 uint32_t palette[16];
3813 char *cur = st->codec->extradata;
3815 while (cur && *cur) {
3816 if (strncmp("palette:", cur, 8) == 0) {
3818 count = sscanf(cur + 8,
3819 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3820 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3821 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3822 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3823 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3824 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3825 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3826 &palette[12], &palette[13], &palette[14], &palette[15]);
3828 for (i = 0; i < count; i++) {
3829 palette[i] = rgb_to_yuv(palette[i]);
3832 } else if (!strncmp("size:", cur, 5)) {
3833 sscanf(cur + 5, "%dx%d", &width, &height);
3836 if (have_palette && have_size)
3838 cur += strcspn(cur, "\n\r");
3839 cur += strspn(cur, "\n\r");
3842 track->vos_data = av_malloc(16*4);
3843 if (!track->vos_data)
3844 return AVERROR(ENOMEM);
3845 for (i = 0; i < 16; i++) {
3846 AV_WB32(track->vos_data + i * 4, palette[i]);
3848 track->vos_len = 16 * 4;
3850 st->codec->width = width;
3851 st->codec->height = track->height = height;
3856 static int mov_write_header(AVFormatContext *s)
3858 AVIOContext *pb = s->pb;
3859 MOVMuxContext *mov = s->priv_data;
3860 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3861 int i, ret, hint_track = 0, tmcd_track = 0;
3863 /* Default mode == MP4 */
3864 mov->mode = MODE_MP4;
3866 if (s->oformat != NULL) {
3867 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3868 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3869 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3870 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3871 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3872 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3873 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3876 for (i = 0; i < s->nb_streams; i++)
3877 if (s->flags & AVFMT_FLAG_BITEXACT)
3880 /* Set the FRAGMENT flag if any of the fragmentation methods are
3882 if (mov->max_fragment_duration || mov->max_fragment_size ||
3883 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3884 FF_MOV_FLAG_FRAG_KEYFRAME |
3885 FF_MOV_FLAG_FRAG_CUSTOM))
3886 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3888 /* Set other implicit flags immediately */
3889 if (mov->mode == MODE_ISM)
3890 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3891 FF_MOV_FLAG_FRAGMENT;
3893 /* faststart: moov at the beginning of the file, if supported */
3894 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3895 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3896 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3897 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3898 "with fragmentation and custom IO, disabling faststart\n");
3899 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3901 mov->reserved_moov_size = -1;
3904 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3905 s->avoid_negative_ts = 2;
3908 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3909 * is enabled, we don't support non-seekable output at all. */
3910 if (!s->pb->seekable &&
3911 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3912 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3913 return AVERROR(EINVAL);
3916 mov_write_ftyp_tag(pb,s);
3917 if (mov->mode == MODE_PSP) {
3918 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3919 for (i = 0; i < s->nb_streams; i++) {
3920 AVStream *st = s->streams[i];
3921 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3923 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3929 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3930 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3931 return AVERROR(EINVAL);
3933 mov_write_uuidprof_tag(pb, s);
3936 mov->nb_streams = s->nb_streams;
3937 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3938 mov->chapter_track = mov->nb_streams++;
3940 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3941 /* Add hint tracks for each audio and video stream */
3942 hint_track = mov->nb_streams;
3943 for (i = 0; i < s->nb_streams; i++) {
3944 AVStream *st = s->streams[i];
3945 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3946 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3952 if (mov->mode == MODE_MOV) {
3953 tmcd_track = mov->nb_streams;
3955 /* +1 tmcd track for each video stream with a timecode */
3956 for (i = 0; i < s->nb_streams; i++) {
3957 AVStream *st = s->streams[i];
3958 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3959 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3960 mov->nb_meta_tmcd++;
3963 /* check if there is already a tmcd track to remux */
3964 if (mov->nb_meta_tmcd) {
3965 for (i = 0; i < s->nb_streams; i++) {
3966 AVStream *st = s->streams[i];
3967 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3968 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3969 "so timecode metadata are now ignored\n");
3970 mov->nb_meta_tmcd = 0;
3975 mov->nb_streams += mov->nb_meta_tmcd;
3978 // Reserve an extra stream for chapters for the case where chapters
3979 // are written in the trailer
3980 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3982 return AVERROR(ENOMEM);
3984 for (i = 0; i < s->nb_streams; i++) {
3985 AVStream *st= s->streams[i];
3986 MOVTrack *track= &mov->tracks[i];
3987 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3990 track->enc = st->codec;
3991 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3992 if (track->language < 0)
3993 track->language = 0;
3994 track->mode = mov->mode;
3995 track->tag = mov_find_codec_tag(s, track);
3997 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
3998 "codec not currently supported in container\n",
3999 avcodec_get_name(st->codec->codec_id), i);
4000 ret = AVERROR(EINVAL);
4003 /* If hinting of this track is enabled by a later hint track,
4004 * this is updated. */
4005 track->hint_track = -1;
4006 track->start_dts = AV_NOPTS_VALUE;
4007 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4008 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4009 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4010 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4011 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4012 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4013 ret = AVERROR(EINVAL);
4016 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4018 if (mov->video_track_timescale) {
4019 track->timescale = mov->video_track_timescale;
4021 track->timescale = st->codec->time_base.den;
4022 while(track->timescale < 10000)
4023 track->timescale *= 2;
4025 if (track->mode == MODE_MOV && track->timescale > 100000)
4026 av_log(s, AV_LOG_WARNING,
4027 "WARNING codec timebase is very high. If duration is too long,\n"
4028 "file may not be playable by quicktime. Specify a shorter timebase\n"
4029 "or choose different container.\n");
4030 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4031 track->timescale = st->codec->sample_rate;
4032 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4033 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4034 track->audio_vbr = 1;
4035 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4036 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4037 st->codec->codec_id == AV_CODEC_ID_ILBC){
4038 if (!st->codec->block_align) {
4039 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4040 ret = AVERROR(EINVAL);
4043 track->sample_size = st->codec->block_align;
4044 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4045 track->audio_vbr = 1;
4047 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4049 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4050 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4051 track->audio_vbr = 1;
4053 if (track->mode != MODE_MOV &&
4054 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4055 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4056 i, track->enc->sample_rate);
4057 ret = AVERROR(EINVAL);
4060 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4061 track->timescale = st->codec->time_base.den;
4062 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4063 track->timescale = st->codec->time_base.den;
4065 track->timescale = MOV_TIMESCALE;
4068 track->height = st->codec->height;
4069 /* The ism specific timescale isn't mandatory, but is assumed by
4070 * some tools, such as mp4split. */
4071 if (mov->mode == MODE_ISM)
4072 track->timescale = 10000000;
4074 avpriv_set_pts_info(st, 64, 1, track->timescale);
4076 /* copy extradata if it exists */
4077 if (st->codec->extradata_size) {
4078 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4079 mov_create_dvd_sub_decoder_specific_info(track, st);
4081 track->vos_len = st->codec->extradata_size;
4082 track->vos_data = av_malloc(track->vos_len);
4083 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4091 if (mov->reserved_moov_size){
4092 mov->reserved_moov_pos= avio_tell(pb);
4093 if (mov->reserved_moov_size > 0)
4094 avio_skip(pb, mov->reserved_moov_size);
4097 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4098 /* If no fragmentation options have been set, set a default. */
4099 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4100 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4101 !mov->max_fragment_duration && !mov->max_fragment_size)
4102 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4104 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4105 mov->reserved_moov_pos = avio_tell(pb);
4106 mov_write_mdat_tag(pb, mov);
4109 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4110 mov->time = ff_iso8601_to_unix_time(t->value);
4112 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4114 if (mov->chapter_track)
4115 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4118 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4119 /* Initialize the hint tracks for each audio and video stream */
4120 for (i = 0; i < s->nb_streams; i++) {
4121 AVStream *st = s->streams[i];
4122 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4123 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4124 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4131 if (mov->nb_meta_tmcd) {
4132 /* Initialize the tmcd tracks */
4133 for (i = 0; i < s->nb_streams; i++) {
4134 AVStream *st = s->streams[i];
4137 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4139 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4142 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4151 if (mov->flags & FF_MOV_FLAG_ISML)
4152 mov_write_isml_manifest(pb, mov);
4154 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4155 mov_write_moov_tag(pb, mov, s);
4165 static int get_moov_size(AVFormatContext *s)
4168 AVIOContext *moov_buf;
4169 MOVMuxContext *mov = s->priv_data;
4171 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4173 mov_write_moov_tag(moov_buf, mov, s);
4174 return ffio_close_null_buf(moov_buf);
4178 * This function gets the moov size if moved to the top of the file: the chunk
4179 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4180 * entries) when the moov is moved to the beginning, so the size of the moov
4181 * would change. It also updates the chunk offset tables.
4183 static int compute_moov_size(AVFormatContext *s)
4185 int i, moov_size, moov_size2;
4186 MOVMuxContext *mov = s->priv_data;
4188 moov_size = get_moov_size(s);
4192 for (i = 0; i < mov->nb_streams; i++)
4193 mov->tracks[i].data_offset += moov_size;
4195 moov_size2 = get_moov_size(s);
4199 /* if the size changed, we just switched from stco to co64 and need to
4200 * update the offsets */
4201 if (moov_size2 != moov_size)
4202 for (i = 0; i < mov->nb_streams; i++)
4203 mov->tracks[i].data_offset += moov_size2 - moov_size;
4208 static int shift_data(AVFormatContext *s)
4210 int ret = 0, moov_size;
4211 MOVMuxContext *mov = s->priv_data;
4212 int64_t pos, pos_end = avio_tell(s->pb);
4213 uint8_t *buf, *read_buf[2];
4214 int read_buf_id = 0;
4216 AVIOContext *read_pb;
4218 moov_size = compute_moov_size(s);
4222 buf = av_malloc(moov_size * 2);
4224 return AVERROR(ENOMEM);
4226 read_buf[1] = buf + moov_size;
4228 /* Shift the data: the AVIO context of the output can only be used for
4229 * writing, so we re-open the same output, but for reading. It also avoids
4230 * a read/seek/write/seek back and forth. */
4232 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4234 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4235 "the second pass (faststart)\n", s->filename);
4239 /* mark the end of the shift to up to the last data we wrote, and get ready
4241 pos_end = avio_tell(s->pb);
4242 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4244 /* start reading at where the new moov will be placed */
4245 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4246 pos = avio_tell(read_pb);
4248 #define READ_BLOCK do { \
4249 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4253 /* shift data by chunk of at most moov_size */
4258 n = read_size[read_buf_id];
4261 avio_write(s->pb, read_buf[read_buf_id], n);
4263 } while (pos < pos_end);
4264 avio_close(read_pb);
4271 static int mov_write_trailer(AVFormatContext *s)
4273 MOVMuxContext *mov = s->priv_data;
4274 AVIOContext *pb = s->pb;
4280 * Before actually writing the trailer, make sure that there are no
4281 * dangling subtitles, that need a terminating sample.
4283 for (i = 0; i < mov->nb_streams; i++) {
4284 MOVTrack *trk = &mov->tracks[i];
4285 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4286 !trk->last_sample_is_subtitle_end) {
4287 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4288 trk->last_sample_is_subtitle_end = 1;
4292 // If there were no chapters when the header was written, but there
4293 // are chapters now, write them in the trailer. This only works
4294 // when we are not doing fragments.
4295 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4296 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4297 mov->chapter_track = mov->nb_streams++;
4298 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4303 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4304 moov_pos = avio_tell(pb);
4306 /* Write size of mdat tag */
4307 if (mov->mdat_size + 8 <= UINT32_MAX) {
4308 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4309 avio_wb32(pb, mov->mdat_size + 8);
4311 /* overwrite 'wide' placeholder atom */
4312 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4313 /* special value: real atom size will be 64 bit value after
4316 ffio_wfourcc(pb, "mdat");
4317 avio_wb64(pb, mov->mdat_size + 16);
4319 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4321 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4322 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4323 res = shift_data(s);
4325 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4326 mov_write_moov_tag(pb, mov, s);
4328 } else if (mov->reserved_moov_size > 0) {
4330 mov_write_moov_tag(pb, mov, s);
4331 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4333 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4336 avio_wb32(pb, size);
4337 ffio_wfourcc(pb, "free");
4338 for (i = 0; i < size; i++)
4340 avio_seek(pb, moov_pos, SEEK_SET);
4342 mov_write_moov_tag(pb, mov, s);
4345 mov_flush_fragment(s);
4346 mov_write_mfra_tag(pb, mov);
4349 for (i = 0; i < mov->nb_streams; i++) {
4350 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4351 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4352 int64_t off = avio_tell(pb);
4354 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4355 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4356 avio_write(pb, buf, 7);
4357 avio_seek(pb, off, SEEK_SET);
4368 #if CONFIG_MOV_MUXER
4370 AVOutputFormat ff_mov_muxer = {
4372 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4373 .extensions = "mov",
4374 .priv_data_size = sizeof(MOVMuxContext),
4375 .audio_codec = AV_CODEC_ID_AAC,
4376 .video_codec = CONFIG_LIBX264_ENCODER ?
4377 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4378 .write_header = mov_write_header,
4379 .write_packet = mov_write_packet,
4380 .write_trailer = mov_write_trailer,
4381 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4382 .codec_tag = (const AVCodecTag* const []){
4383 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4385 .priv_class = &mov_muxer_class,
4388 #if CONFIG_TGP_MUXER
4390 AVOutputFormat ff_tgp_muxer = {
4392 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4393 .extensions = "3gp",
4394 .priv_data_size = sizeof(MOVMuxContext),
4395 .audio_codec = AV_CODEC_ID_AMR_NB,
4396 .video_codec = AV_CODEC_ID_H263,
4397 .write_header = mov_write_header,
4398 .write_packet = mov_write_packet,
4399 .write_trailer = mov_write_trailer,
4400 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4401 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4402 .priv_class = &tgp_muxer_class,
4405 #if CONFIG_MP4_MUXER
4407 AVOutputFormat ff_mp4_muxer = {
4409 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4410 .mime_type = "application/mp4",
4411 .extensions = "mp4",
4412 .priv_data_size = sizeof(MOVMuxContext),
4413 .audio_codec = AV_CODEC_ID_AAC,
4414 .video_codec = CONFIG_LIBX264_ENCODER ?
4415 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4416 .write_header = mov_write_header,
4417 .write_packet = mov_write_packet,
4418 .write_trailer = mov_write_trailer,
4419 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4420 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4421 .priv_class = &mp4_muxer_class,
4424 #if CONFIG_PSP_MUXER
4426 AVOutputFormat ff_psp_muxer = {
4428 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4429 .extensions = "mp4,psp",
4430 .priv_data_size = sizeof(MOVMuxContext),
4431 .audio_codec = AV_CODEC_ID_AAC,
4432 .video_codec = CONFIG_LIBX264_ENCODER ?
4433 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4434 .write_header = mov_write_header,
4435 .write_packet = mov_write_packet,
4436 .write_trailer = mov_write_trailer,
4437 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4438 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4439 .priv_class = &psp_muxer_class,
4442 #if CONFIG_TG2_MUXER
4444 AVOutputFormat ff_tg2_muxer = {
4446 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4447 .extensions = "3g2",
4448 .priv_data_size = sizeof(MOVMuxContext),
4449 .audio_codec = AV_CODEC_ID_AMR_NB,
4450 .video_codec = AV_CODEC_ID_H263,
4451 .write_header = mov_write_header,
4452 .write_packet = mov_write_packet,
4453 .write_trailer = mov_write_trailer,
4454 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4455 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4456 .priv_class = &tg2_muxer_class,
4459 #if CONFIG_IPOD_MUXER
4461 AVOutputFormat ff_ipod_muxer = {
4463 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4464 .mime_type = "application/mp4",
4465 .extensions = "m4v,m4a",
4466 .priv_data_size = sizeof(MOVMuxContext),
4467 .audio_codec = AV_CODEC_ID_AAC,
4468 .video_codec = AV_CODEC_ID_H264,
4469 .write_header = mov_write_header,
4470 .write_packet = mov_write_packet,
4471 .write_trailer = mov_write_trailer,
4472 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4473 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4474 .priv_class = &ipod_muxer_class,
4477 #if CONFIG_ISMV_MUXER
4479 AVOutputFormat ff_ismv_muxer = {
4481 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4482 .mime_type = "application/mp4",
4483 .extensions = "ismv,isma",
4484 .priv_data_size = sizeof(MOVMuxContext),
4485 .audio_codec = AV_CODEC_ID_AAC,
4486 .video_codec = AV_CODEC_ID_H264,
4487 .write_header = mov_write_header,
4488 .write_packet = mov_write_packet,
4489 .write_trailer = mov_write_trailer,
4490 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4491 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4492 .priv_class = &ismv_muxer_class,
4495 #if CONFIG_F4V_MUXER
4497 AVOutputFormat ff_f4v_muxer = {
4499 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4500 .mime_type = "application/f4v",
4501 .extensions = "f4v",
4502 .priv_data_size = sizeof(MOVMuxContext),
4503 .audio_codec = AV_CODEC_ID_AAC,
4504 .video_codec = AV_CODEC_ID_H264,
4505 .write_header = mov_write_header,
4506 .write_packet = mov_write_packet,
4507 .write_trailer = mov_write_trailer,
4508 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4509 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4510 .priv_class = &f4v_muxer_class,