3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "avio_internal.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
33 #include "libavcodec/vc1.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/dict.h"
46 static const AVOption options[] = {
47 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
48 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
49 { "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" },
50 { "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" },
51 { "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" },
52 { "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" },
53 { "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" },
54 { "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" },
55 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
56 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
57 { "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},
58 { "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},
59 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
60 { "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},
61 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
62 { "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},
66 #define MOV_CLASS(flavor)\
67 static const AVClass flavor ## _muxer_class = {\
68 .class_name = #flavor " muxer",\
69 .item_name = av_default_item_name,\
71 .version = LIBAVUTIL_VERSION_INT,\
74 //FIXME support 64 bit variant with wide placeholders
75 static int64_t update_size(AVIOContext *pb, int64_t pos)
77 int64_t curpos = avio_tell(pb);
78 avio_seek(pb, pos, SEEK_SET);
79 avio_wb32(pb, curpos - pos); /* rewrite size */
80 avio_seek(pb, curpos, SEEK_SET);
85 static int co64_required(const MOVTrack *track)
87 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
92 /* Chunk offset atom */
93 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
96 int mode64 = co64_required(track); // use 32 bit size variant if possible
97 int64_t pos = avio_tell(pb);
98 avio_wb32(pb, 0); /* size */
100 ffio_wfourcc(pb, "co64");
102 ffio_wfourcc(pb, "stco");
103 avio_wb32(pb, 0); /* version & flags */
104 avio_wb32(pb, track->entry); /* entry count */
105 for (i = 0; i < track->entry; i++) {
107 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
109 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
111 return update_size(pb, pos);
114 /* Sample size atom */
115 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
118 int i, j, entries = 0, tst = -1, oldtst = -1;
120 int64_t pos = avio_tell(pb);
121 avio_wb32(pb, 0); /* size */
122 ffio_wfourcc(pb, "stsz");
123 avio_wb32(pb, 0); /* version & flags */
125 for (i = 0; i < track->entry; i++) {
126 tst = track->cluster[i].size / track->cluster[i].entries;
127 if (oldtst != -1 && tst != oldtst)
130 entries += track->cluster[i].entries;
132 if (equalChunks && track->entry) {
133 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
134 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
135 avio_wb32(pb, sSize); // sample size
136 avio_wb32(pb, entries); // sample count
138 avio_wb32(pb, 0); // sample size
139 avio_wb32(pb, entries); // sample count
140 for (i = 0; i < track->entry; i++) {
141 for (j = 0; j < track->cluster[i].entries; j++) {
142 avio_wb32(pb, track->cluster[i].size /
143 track->cluster[i].entries);
147 return update_size(pb, pos);
150 /* Sample to chunk atom */
151 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
153 int index = 0, oldval = -1, i;
154 int64_t entryPos, curpos;
156 int64_t pos = avio_tell(pb);
157 avio_wb32(pb, 0); /* size */
158 ffio_wfourcc(pb, "stsc");
159 avio_wb32(pb, 0); // version & flags
160 entryPos = avio_tell(pb);
161 avio_wb32(pb, track->entry); // entry count
162 for (i = 0; i < track->entry; i++) {
163 if (oldval != track->cluster[i].samples_in_chunk) {
164 avio_wb32(pb, i + 1); // first chunk
165 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
166 avio_wb32(pb, 0x1); // sample description index
167 oldval = track->cluster[i].samples_in_chunk;
171 curpos = avio_tell(pb);
172 avio_seek(pb, entryPos, SEEK_SET);
173 avio_wb32(pb, index); // rewrite size
174 avio_seek(pb, curpos, SEEK_SET);
176 return update_size(pb, pos);
179 /* Sync sample atom */
180 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
182 int64_t curpos, entryPos;
184 int64_t pos = avio_tell(pb);
185 avio_wb32(pb, 0); // size
186 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
187 avio_wb32(pb, 0); // version & flags
188 entryPos = avio_tell(pb);
189 avio_wb32(pb, track->entry); // entry count
190 for (i = 0; i < track->entry; i++) {
191 if (track->cluster[i].flags & flag) {
192 avio_wb32(pb, i + 1);
196 curpos = avio_tell(pb);
197 avio_seek(pb, entryPos, SEEK_SET);
198 avio_wb32(pb, index); // rewrite size
199 avio_seek(pb, curpos, SEEK_SET);
200 return update_size(pb, pos);
203 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
205 avio_wb32(pb, 0x11); /* size */
206 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
207 else ffio_wfourcc(pb, "damr");
208 ffio_wfourcc(pb, "FFMP");
209 avio_w8(pb, 0); /* decoder version */
211 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
212 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
213 avio_w8(pb, 0x01); /* Frames per sample */
217 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
222 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
224 if (track->vos_len < 7)
228 ffio_wfourcc(pb, "dac3");
230 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
231 fscod = get_bits(&gbc, 2);
232 frmsizecod = get_bits(&gbc, 6);
233 bsid = get_bits(&gbc, 5);
234 bsmod = get_bits(&gbc, 3);
235 acmod = get_bits(&gbc, 3);
237 skip_bits(&gbc, 2); // dsurmod
239 if ((acmod & 1) && acmod != 1)
240 skip_bits(&gbc, 2); // cmixlev
242 skip_bits(&gbc, 2); // surmixlev
244 lfeon = get_bits1(&gbc);
246 init_put_bits(&pbc, buf, sizeof(buf));
247 put_bits(&pbc, 2, fscod);
248 put_bits(&pbc, 5, bsid);
249 put_bits(&pbc, 3, bsmod);
250 put_bits(&pbc, 3, acmod);
251 put_bits(&pbc, 1, lfeon);
252 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
253 put_bits(&pbc, 5, 0); // reserved
255 flush_put_bits(&pbc);
256 avio_write(pb, buf, sizeof(buf));
262 * This function writes extradata "as is".
263 * Extradata must be formatted like a valid atom (with size and tag).
265 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
267 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
268 return track->enc->extradata_size;
271 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
276 avio_w8(pb, (size >> (7 * i)) | 0x80);
277 avio_w8(pb, size & 0x7F);
280 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
282 int64_t pos = avio_tell(pb);
283 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
285 avio_wb32(pb, 0); // size
286 ffio_wfourcc(pb, "esds");
287 avio_wb32(pb, 0); // Version
290 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
291 avio_wb16(pb, track->track_id);
292 avio_w8(pb, 0x00); // flags (= no flags)
294 // DecoderConfig descriptor
295 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
297 // Object type indication
298 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
299 track->enc->codec_id == AV_CODEC_ID_MP3) &&
300 track->enc->sample_rate > 24000)
301 avio_w8(pb, 0x6B); // 11172-3
303 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
305 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
306 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
307 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
308 avio_w8(pb, 0x15); // flags (= Audiostream)
310 avio_w8(pb, 0x11); // flags (= Visualstream)
312 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
314 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
315 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
316 track->enc->rc_min_rate == 0)
317 avio_wb32(pb, 0); // vbr
319 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
321 if (track->vos_len) {
322 // DecoderSpecific info descriptor
323 put_descr(pb, 0x05, track->vos_len);
324 avio_write(pb, track->vos_data, track->vos_len);
328 put_descr(pb, 0x06, 1);
330 return update_size(pb, pos);
333 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
335 int64_t pos = avio_tell(pb);
337 avio_wl32(pb, track->tag); // store it byteswapped
338 track->enc->codec_tag = av_bswap16(track->tag >> 16);
339 ff_put_wav_header(pb, track->enc);
340 return update_size(pb, pos);
343 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
345 int64_t pos = avio_tell(pb);
347 ffio_wfourcc(pb, "wfex");
348 ff_put_wav_header(pb, track->enc);
349 return update_size(pb, pos);
352 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
354 uint32_t layout_tag, bitmap;
355 int64_t pos = avio_tell(pb);
357 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
358 track->enc->channel_layout,
361 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
362 "lack of channel information\n");
366 avio_wb32(pb, 0); // Size
367 ffio_wfourcc(pb, "chan"); // Type
368 avio_w8(pb, 0); // Version
369 avio_wb24(pb, 0); // Flags
370 avio_wb32(pb, layout_tag); // mChannelLayoutTag
371 avio_wb32(pb, bitmap); // mChannelBitmap
372 avio_wb32(pb, 0); // mNumberChannelDescriptions
374 return update_size(pb, pos);
377 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
379 int64_t pos = avio_tell(pb);
381 avio_wb32(pb, 0); /* size */
382 ffio_wfourcc(pb, "wave");
384 avio_wb32(pb, 12); /* size */
385 ffio_wfourcc(pb, "frma");
386 avio_wl32(pb, track->tag);
388 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
389 /* useless atom needed by mplayer, ipod, not needed by quicktime */
390 avio_wb32(pb, 12); /* size */
391 ffio_wfourcc(pb, "mp4a");
393 mov_write_esds_tag(pb, track);
394 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
395 mov_write_amr_tag(pb, track);
396 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
397 mov_write_ac3_tag(pb, track);
398 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
399 mov_write_extradata_tag(pb, track);
400 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
401 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
402 mov_write_ms_tag(pb, track);
405 avio_wb32(pb, 8); /* size */
406 avio_wb32(pb, 0); /* null tag */
408 return update_size(pb, pos);
411 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
414 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
415 int unescaped_size, seq_found = 0;
416 int level = 0, interlace = 0;
417 int packet_seq = track->vc1_info.packet_seq;
418 int packet_entry = track->vc1_info.packet_entry;
419 int slices = track->vc1_info.slices;
422 if (track->start_dts == AV_NOPTS_VALUE) {
423 /* No packets written yet, vc1_info isn't authoritative yet. */
424 /* Assume inline sequence and entry headers. This will be
425 * overwritten at the end if the file is seekable. */
426 packet_seq = packet_entry = 1;
429 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
431 return AVERROR(ENOMEM);
432 start = find_next_marker(track->vos_data, end);
433 for (next = start; next < end; start = next) {
436 next = find_next_marker(start + 4, end);
437 size = next - start - 4;
440 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
441 init_get_bits(&gb, unescaped, 8 * unescaped_size);
442 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
443 int profile = get_bits(&gb, 2);
444 if (profile != PROFILE_ADVANCED) {
446 return AVERROR(ENOSYS);
449 level = get_bits(&gb, 3);
450 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
452 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
453 skip_bits(&gb, 1); /* broadcast */
454 interlace = get_bits1(&gb);
455 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
460 return AVERROR(ENOSYS);
463 init_put_bits(&pbc, buf, 7);
464 /* VC1DecSpecStruc */
465 put_bits(&pbc, 4, 12); /* profile - advanced */
466 put_bits(&pbc, 3, level);
467 put_bits(&pbc, 1, 0); /* reserved */
468 /* VC1AdvDecSpecStruc */
469 put_bits(&pbc, 3, level);
470 put_bits(&pbc, 1, 0); /* cbr */
471 put_bits(&pbc, 6, 0); /* reserved */
472 put_bits(&pbc, 1, !interlace); /* no interlace */
473 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
474 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
475 put_bits(&pbc, 1, !slices); /* no slice code */
476 put_bits(&pbc, 1, 0); /* no bframe */
477 put_bits(&pbc, 1, 0); /* reserved */
478 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
479 flush_put_bits(&pbc);
486 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
488 uint8_t buf[7] = { 0 };
491 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
494 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
495 ffio_wfourcc(pb, "dvc1");
496 track->vc1_info.struct_offset = avio_tell(pb);
497 avio_write(pb, buf, sizeof(buf));
498 avio_write(pb, track->vos_data, track->vos_len);
503 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
505 avio_wb32(pb, track->vos_len + 8);
506 ffio_wfourcc(pb, "glbl");
507 avio_write(pb, track->vos_data, track->vos_len);
508 return 8 + track->vos_len;
512 * Compute flags for 'lpcm' tag.
513 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
515 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
518 case AV_CODEC_ID_PCM_F32BE:
519 case AV_CODEC_ID_PCM_F64BE:
521 case AV_CODEC_ID_PCM_F32LE:
522 case AV_CODEC_ID_PCM_F64LE:
524 case AV_CODEC_ID_PCM_U8:
526 case AV_CODEC_ID_PCM_S16BE:
527 case AV_CODEC_ID_PCM_S24BE:
528 case AV_CODEC_ID_PCM_S32BE:
530 case AV_CODEC_ID_PCM_S8:
531 case AV_CODEC_ID_PCM_S16LE:
532 case AV_CODEC_ID_PCM_S24LE:
533 case AV_CODEC_ID_PCM_S32LE:
540 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
544 if (cluster_idx >= track->entry)
547 if (cluster_idx + 1 == track->entry)
548 next_dts = track->track_duration + track->start_dts;
550 next_dts = track->cluster[cluster_idx + 1].dts;
552 return next_dts - track->cluster[cluster_idx].dts;
555 static int get_samples_per_packet(MOVTrack *track)
557 int i, first_duration;
559 /* use 1 for raw PCM */
560 if (!track->audio_vbr)
563 /* check to see if duration is constant for all clusters */
566 first_duration = get_cluster_duration(track, 0);
567 for (i = 1; i < track->entry; i++) {
568 if (get_cluster_duration(track, i) != first_duration)
571 return first_duration;
574 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
576 int64_t pos = avio_tell(pb);
578 uint32_t tag = track->tag;
580 if (track->mode == MODE_MOV) {
581 if (mov_get_lpcm_flags(track->enc->codec_id))
582 tag = AV_RL32("lpcm");
586 avio_wb32(pb, 0); /* size */
587 avio_wl32(pb, tag); // store it byteswapped
588 avio_wb32(pb, 0); /* Reserved */
589 avio_wb16(pb, 0); /* Reserved */
590 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
592 /* SoundDescription */
593 avio_wb16(pb, version); /* Version */
594 avio_wb16(pb, 0); /* Revision level */
595 avio_wb32(pb, 0); /* Reserved */
600 avio_wb16(pb, 0xfffe);
602 avio_wb32(pb, 0x00010000);
604 avio_wb64(pb, av_double2int(track->enc->sample_rate));
605 avio_wb32(pb, track->enc->channels);
606 avio_wb32(pb, 0x7F000000);
607 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
608 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
609 avio_wb32(pb, track->sample_size);
610 avio_wb32(pb, get_samples_per_packet(track));
612 /* reserved for mp4/3gp */
617 avio_wb16(pb, 0); /* packet size (= 0) */
618 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
619 track->enc->sample_rate : 0);
620 avio_wb16(pb, 0); /* Reserved */
623 if (track->mode == MODE_MOV &&
624 (track->enc->codec_id == AV_CODEC_ID_AAC ||
625 track->enc->codec_id == AV_CODEC_ID_AC3 ||
626 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
627 track->enc->codec_id == AV_CODEC_ID_ALAC ||
628 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
629 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
630 mov_write_wave_tag(pb, track);
631 else if (track->tag == MKTAG('m','p','4','a'))
632 mov_write_esds_tag(pb, track);
633 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
634 mov_write_amr_tag(pb, track);
635 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
636 mov_write_ac3_tag(pb, track);
637 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
638 mov_write_extradata_tag(pb, track);
639 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
640 mov_write_wfex_tag(pb, track);
641 else if (track->vos_len > 0)
642 mov_write_glbl_tag(pb, track);
644 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
645 mov_write_chan_tag(pb, track);
647 return update_size(pb, pos);
650 static int mov_write_d263_tag(AVIOContext *pb)
652 avio_wb32(pb, 0xf); /* size */
653 ffio_wfourcc(pb, "d263");
654 ffio_wfourcc(pb, "FFMP");
655 avio_w8(pb, 0); /* decoder version */
656 /* FIXME use AVCodecContext level/profile, when encoder will set values */
657 avio_w8(pb, 0xa); /* level */
658 avio_w8(pb, 0); /* profile */
662 /* TODO: No idea about these values */
663 static int mov_write_svq3_tag(AVIOContext *pb)
666 ffio_wfourcc(pb, "SMI ");
667 ffio_wfourcc(pb, "SEQH");
669 avio_wb32(pb, 0xe2c0211d);
670 avio_wb32(pb, 0xc0000000);
675 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
677 int64_t pos = avio_tell(pb);
680 ffio_wfourcc(pb, "avcC");
681 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
682 return update_size(pb, pos);
685 /* also used by all avid codecs (dv, imx, meridien) and their variants */
686 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
689 avio_wb32(pb, 24); /* size */
690 ffio_wfourcc(pb, "ACLR");
691 ffio_wfourcc(pb, "ACLR");
692 ffio_wfourcc(pb, "0001");
693 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
694 avio_wb32(pb, 0); /* unknown */
696 avio_wb32(pb, 24); /* size */
697 ffio_wfourcc(pb, "APRG");
698 ffio_wfourcc(pb, "APRG");
699 ffio_wfourcc(pb, "0001");
700 avio_wb32(pb, 1); /* unknown */
701 avio_wb32(pb, 0); /* unknown */
703 avio_wb32(pb, 120); /* size */
704 ffio_wfourcc(pb, "ARES");
705 ffio_wfourcc(pb, "ARES");
706 ffio_wfourcc(pb, "0001");
707 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
708 avio_wb32(pb, track->enc->width);
709 /* values below are based on samples created with quicktime and avid codecs */
710 if (track->vos_data[5] & 2) { // interlaced
711 avio_wb32(pb, track->enc->height / 2);
712 avio_wb32(pb, 2); /* unknown */
713 avio_wb32(pb, 0); /* unknown */
714 avio_wb32(pb, 4); /* unknown */
716 avio_wb32(pb, track->enc->height);
717 avio_wb32(pb, 1); /* unknown */
718 avio_wb32(pb, 0); /* unknown */
719 if (track->enc->height == 1080)
720 avio_wb32(pb, 5); /* unknown */
722 avio_wb32(pb, 6); /* unknown */
725 for (i = 0; i < 10; i++)
728 /* extra padding for stsd needed */
733 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
735 int tag = track->enc->codec_tag;
737 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
740 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
741 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
742 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
743 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
744 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
745 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
746 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
751 static const AVCodecTag codec_ipod_tags[] = {
752 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
753 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
754 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
755 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
756 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
757 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
758 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
759 { AV_CODEC_ID_NONE, 0 },
762 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
764 int tag = track->enc->codec_tag;
766 // keep original tag for subs, ipod supports both formats
767 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
768 (tag == MKTAG('t', 'x', '3', 'g') ||
769 tag == MKTAG('t', 'e', 'x', 't'))))
770 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
772 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
773 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
774 "Quicktime/Ipod might not play the file\n");
779 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
783 if (track->enc->width == 720) /* SD */
784 if (track->enc->height == 480) /* NTSC */
785 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
786 else tag = MKTAG('d','v','c',' ');
787 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
788 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
789 else tag = MKTAG('d','v','p','p');
790 else if (track->enc->height == 720) /* HD 720 line */
791 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
792 else tag = MKTAG('d','v','h','p');
793 else if (track->enc->height == 1080) /* HD 1080 line */
794 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
795 else tag = MKTAG('d','v','h','6');
797 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
804 static const struct {
805 enum AVPixelFormat pix_fmt;
808 } mov_pix_fmt_tags[] = {
809 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
810 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
811 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
812 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
813 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
814 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
815 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
816 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
817 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
818 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
819 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
820 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
821 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
822 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
825 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
827 int tag = track->enc->codec_tag;
830 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
831 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
832 tag = mov_pix_fmt_tags[i].tag;
833 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
841 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
843 int tag = track->enc->codec_tag;
845 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
846 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
847 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
848 track->enc->codec_id == AV_CODEC_ID_H263 ||
849 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
850 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
851 tag = mov_get_dv_codec_tag(s, track);
852 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
853 tag = mov_get_rawvideo_codec_tag(s, track);
854 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
855 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
856 if (!tag) { // if no mac fcc found, try with Microsoft tags
857 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
859 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
860 "the file may be unplayable!\n");
862 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
863 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
864 if (!tag) { // if no mac fcc found, try with Microsoft tags
865 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
867 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
868 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
869 "the file may be unplayable!\n");
872 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
873 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
879 static const AVCodecTag codec_3gp_tags[] = {
880 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
881 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
882 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
883 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
884 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
885 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
886 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
887 { AV_CODEC_ID_NONE, 0 },
890 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
894 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
895 tag = mp4_get_codec_tag(s, track);
896 else if (track->mode == MODE_ISM) {
897 tag = mp4_get_codec_tag(s, track);
898 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
899 tag = MKTAG('w', 'm', 'a', ' ');
900 } else if (track->mode == MODE_IPOD)
901 tag = ipod_get_codec_tag(s, track);
902 else if (track->mode & MODE_3GP)
903 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
905 tag = mov_get_codec_tag(s, track);
911 * Needed to make file play in iPods running newest firmware
912 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
914 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
917 ffio_wfourcc(pb, "uuid");
918 avio_wb32(pb, 0x6b6840f2);
919 avio_wb32(pb, 0x5f244fc5);
920 avio_wb32(pb, 0xba39a51b);
921 avio_wb32(pb, 0xcf0323f3);
926 static const uint16_t fiel_data[] = {
927 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
930 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
932 unsigned mov_field_order = 0;
933 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
934 mov_field_order = fiel_data[track->enc->field_order];
938 ffio_wfourcc(pb, "fiel");
939 avio_wb16(pb, mov_field_order);
943 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
945 int64_t pos = avio_tell(pb);
946 avio_wb32(pb, 0); /* size */
947 avio_wl32(pb, track->tag); // store it byteswapped
948 avio_wb32(pb, 0); /* Reserved */
949 avio_wb16(pb, 0); /* Reserved */
950 avio_wb16(pb, 1); /* Data-reference index */
952 if (track->enc->extradata_size)
953 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
955 return update_size(pb, pos);
958 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
961 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
962 track->enc->sample_aspect_ratio.den, INT_MAX);
965 ffio_wfourcc(pb, "pasp");
966 avio_wb32(pb, sar.num);
967 avio_wb32(pb, sar.den);
971 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
973 int64_t pos = avio_tell(pb);
974 char compressor_name[32] = { 0 };
976 avio_wb32(pb, 0); /* size */
977 avio_wl32(pb, track->tag); // store it byteswapped
978 avio_wb32(pb, 0); /* Reserved */
979 avio_wb16(pb, 0); /* Reserved */
980 avio_wb16(pb, 1); /* Data-reference index */
982 avio_wb16(pb, 0); /* Codec stream version */
983 avio_wb16(pb, 0); /* Codec stream revision (=0) */
984 if (track->mode == MODE_MOV) {
985 ffio_wfourcc(pb, "FFMP"); /* Vendor */
986 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
987 avio_wb32(pb, 0); /* Temporal Quality */
988 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
990 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
991 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
994 avio_wb32(pb, 0); /* Reserved */
995 avio_wb32(pb, 0); /* Reserved */
996 avio_wb32(pb, 0); /* Reserved */
998 avio_wb16(pb, track->enc->width); /* Video width */
999 avio_wb16(pb, track->height); /* Video height */
1000 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1001 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1002 avio_wb32(pb, 0); /* Data size (= 0) */
1003 avio_wb16(pb, 1); /* Frame count (= 1) */
1005 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1006 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1007 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1008 avio_w8(pb, strlen(compressor_name));
1009 avio_write(pb, compressor_name, 31);
1011 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1012 avio_wb16(pb, track->enc->bits_per_coded_sample);
1014 avio_wb16(pb, 0x18); /* Reserved */
1015 avio_wb16(pb, 0xffff); /* Reserved */
1016 if (track->tag == MKTAG('m','p','4','v'))
1017 mov_write_esds_tag(pb, track);
1018 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1019 mov_write_d263_tag(pb);
1020 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1021 mov_write_svq3_tag(pb);
1022 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1023 mov_write_avid_tag(pb, track);
1024 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1025 mov_write_avcc_tag(pb, track);
1026 if (track->mode == MODE_IPOD)
1027 mov_write_uuid_tag_ipod(pb);
1028 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1029 mov_write_fiel_tag(pb, track);
1030 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1031 mov_write_dvc1_tag(pb, track);
1032 else if (track->vos_len > 0)
1033 mov_write_glbl_tag(pb, track);
1035 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1036 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1037 mov_write_pasp_tag(pb, track);
1040 return update_size(pb, pos);
1043 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1045 int64_t pos = avio_tell(pb);
1046 avio_wb32(pb, 0); /* size */
1047 ffio_wfourcc(pb, "rtp ");
1048 avio_wb32(pb, 0); /* Reserved */
1049 avio_wb16(pb, 0); /* Reserved */
1050 avio_wb16(pb, 1); /* Data-reference index */
1052 avio_wb16(pb, 1); /* Hint track version */
1053 avio_wb16(pb, 1); /* Highest compatible version */
1054 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1056 avio_wb32(pb, 12); /* size */
1057 ffio_wfourcc(pb, "tims");
1058 avio_wb32(pb, track->timescale);
1060 return update_size(pb, pos);
1063 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1065 int64_t pos = avio_tell(pb);
1067 avio_wb32(pb, 0); /* size */
1068 ffio_wfourcc(pb, "tmcd"); /* Data format */
1069 avio_wb32(pb, 0); /* Reserved */
1070 avio_wb32(pb, 1); /* Data reference index */
1071 if (track->enc->extradata_size)
1072 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1073 return update_size(pb, pos);
1076 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1078 int64_t pos = avio_tell(pb);
1079 avio_wb32(pb, 0); /* size */
1080 ffio_wfourcc(pb, "stsd");
1081 avio_wb32(pb, 0); /* version & flags */
1082 avio_wb32(pb, 1); /* entry count */
1083 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1084 mov_write_video_tag(pb, track);
1085 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1086 mov_write_audio_tag(pb, track);
1087 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1088 mov_write_subtitle_tag(pb, track);
1089 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1090 mov_write_rtp_tag(pb, track);
1091 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1092 mov_write_tmcd_tag(pb, track);
1093 return update_size(pb, pos);
1096 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1098 MOVStts *ctts_entries;
1099 uint32_t entries = 0;
1103 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1104 ctts_entries[0].count = 1;
1105 ctts_entries[0].duration = track->cluster[0].cts;
1106 for (i = 1; i < track->entry; i++) {
1107 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1108 ctts_entries[entries].count++; /* compress */
1111 ctts_entries[entries].duration = track->cluster[i].cts;
1112 ctts_entries[entries].count = 1;
1115 entries++; /* last one */
1116 atom_size = 16 + (entries * 8);
1117 avio_wb32(pb, atom_size); /* size */
1118 ffio_wfourcc(pb, "ctts");
1119 avio_wb32(pb, 0); /* version & flags */
1120 avio_wb32(pb, entries); /* entry count */
1121 for (i = 0; i < entries; i++) {
1122 avio_wb32(pb, ctts_entries[i].count);
1123 avio_wb32(pb, ctts_entries[i].duration);
1125 av_free(ctts_entries);
1129 /* Time to sample atom */
1130 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1132 MOVStts *stts_entries;
1133 uint32_t entries = -1;
1137 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1138 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1139 stts_entries[0].count = track->sample_count;
1140 stts_entries[0].duration = 1;
1143 stts_entries = track->entry ?
1144 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1146 for (i = 0; i < track->entry; i++) {
1147 int duration = get_cluster_duration(track, i);
1148 if (i && duration == stts_entries[entries].duration) {
1149 stts_entries[entries].count++; /* compress */
1152 stts_entries[entries].duration = duration;
1153 stts_entries[entries].count = 1;
1156 entries++; /* last one */
1158 atom_size = 16 + (entries * 8);
1159 avio_wb32(pb, atom_size); /* size */
1160 ffio_wfourcc(pb, "stts");
1161 avio_wb32(pb, 0); /* version & flags */
1162 avio_wb32(pb, entries); /* entry count */
1163 for (i = 0; i < entries; i++) {
1164 avio_wb32(pb, stts_entries[i].count);
1165 avio_wb32(pb, stts_entries[i].duration);
1167 av_free(stts_entries);
1171 static int mov_write_dref_tag(AVIOContext *pb)
1173 avio_wb32(pb, 28); /* size */
1174 ffio_wfourcc(pb, "dref");
1175 avio_wb32(pb, 0); /* version & flags */
1176 avio_wb32(pb, 1); /* entry count */
1178 avio_wb32(pb, 0xc); /* size */
1179 ffio_wfourcc(pb, "url ");
1180 avio_wb32(pb, 1); /* version & flags */
1185 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1187 int64_t pos = avio_tell(pb);
1188 avio_wb32(pb, 0); /* size */
1189 ffio_wfourcc(pb, "stbl");
1190 mov_write_stsd_tag(pb, track);
1191 mov_write_stts_tag(pb, track);
1192 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1193 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1194 track->has_keyframes && track->has_keyframes < track->entry)
1195 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1196 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1197 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1198 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1199 track->flags & MOV_TRACK_CTTS)
1200 mov_write_ctts_tag(pb, track);
1201 mov_write_stsc_tag(pb, track);
1202 mov_write_stsz_tag(pb, track);
1203 mov_write_stco_tag(pb, track);
1204 return update_size(pb, pos);
1207 static int mov_write_dinf_tag(AVIOContext *pb)
1209 int64_t pos = avio_tell(pb);
1210 avio_wb32(pb, 0); /* size */
1211 ffio_wfourcc(pb, "dinf");
1212 mov_write_dref_tag(pb);
1213 return update_size(pb, pos);
1216 static int mov_write_nmhd_tag(AVIOContext *pb)
1219 ffio_wfourcc(pb, "nmhd");
1224 static int mov_write_gmhd_tag(AVIOContext *pb)
1226 avio_wb32(pb, 0x20); /* size */
1227 ffio_wfourcc(pb, "gmhd");
1228 avio_wb32(pb, 0x18); /* gmin size */
1229 ffio_wfourcc(pb, "gmin");/* generic media info */
1230 avio_wb32(pb, 0); /* version & flags */
1231 avio_wb16(pb, 0x40); /* graphics mode = */
1232 avio_wb16(pb, 0x8000); /* opColor (r?) */
1233 avio_wb16(pb, 0x8000); /* opColor (g?) */
1234 avio_wb16(pb, 0x8000); /* opColor (b?) */
1235 avio_wb16(pb, 0); /* balance */
1236 avio_wb16(pb, 0); /* reserved */
1240 static int mov_write_smhd_tag(AVIOContext *pb)
1242 avio_wb32(pb, 16); /* size */
1243 ffio_wfourcc(pb, "smhd");
1244 avio_wb32(pb, 0); /* version & flags */
1245 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1246 avio_wb16(pb, 0); /* reserved */
1250 static int mov_write_vmhd_tag(AVIOContext *pb)
1252 avio_wb32(pb, 0x14); /* size (always 0x14) */
1253 ffio_wfourcc(pb, "vmhd");
1254 avio_wb32(pb, 0x01); /* version & flags */
1255 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1259 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1261 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1262 int64_t pos = avio_tell(pb);
1266 descr = "DataHandler";
1269 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1270 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1272 descr = "VideoHandler";
1273 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1275 descr = "SoundHandler";
1276 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1277 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1278 else hdlr_type = "text";
1279 descr = "SubtitleHandler";
1280 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1282 descr = "HintHandler";
1283 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1285 descr = "TimeCodeHandler";
1288 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1289 track->enc->codec_tag);
1291 av_log(track->enc, AV_LOG_WARNING,
1292 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1293 tag_buf, track->enc->codec_tag);
1297 avio_wb32(pb, 0); /* size */
1298 ffio_wfourcc(pb, "hdlr");
1299 avio_wb32(pb, 0); /* Version & flags */
1300 avio_write(pb, hdlr, 4); /* handler */
1301 ffio_wfourcc(pb, hdlr_type); /* handler type */
1302 avio_wb32(pb, 0); /* reserved */
1303 avio_wb32(pb, 0); /* reserved */
1304 avio_wb32(pb, 0); /* reserved */
1305 if (!track || track->mode == MODE_MOV)
1306 avio_w8(pb, strlen(descr)); /* pascal string */
1307 avio_write(pb, descr, strlen(descr)); /* handler description */
1308 if (track && track->mode != MODE_MOV)
1309 avio_w8(pb, 0); /* c string */
1310 return update_size(pb, pos);
1313 static int mov_write_hmhd_tag(AVIOContext *pb)
1315 /* This atom must be present, but leaving the values at zero
1316 * seems harmless. */
1317 avio_wb32(pb, 28); /* size */
1318 ffio_wfourcc(pb, "hmhd");
1319 avio_wb32(pb, 0); /* version, flags */
1320 avio_wb16(pb, 0); /* maxPDUsize */
1321 avio_wb16(pb, 0); /* avgPDUsize */
1322 avio_wb32(pb, 0); /* maxbitrate */
1323 avio_wb32(pb, 0); /* avgbitrate */
1324 avio_wb32(pb, 0); /* reserved */
1328 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1330 int64_t pos = avio_tell(pb);
1331 avio_wb32(pb, 0); /* size */
1332 ffio_wfourcc(pb, "minf");
1333 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1334 mov_write_vmhd_tag(pb);
1335 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1336 mov_write_smhd_tag(pb);
1337 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1338 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1339 else mov_write_nmhd_tag(pb);
1340 } else if (track->tag == MKTAG('r','t','p',' ')) {
1341 mov_write_hmhd_tag(pb);
1342 } else if (track->tag == MKTAG('t','m','c','d')) {
1343 mov_write_gmhd_tag(pb);
1345 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1346 mov_write_hdlr_tag(pb, NULL);
1347 mov_write_dinf_tag(pb);
1348 mov_write_stbl_tag(pb, track);
1349 return update_size(pb, pos);
1352 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1354 int version = track->track_duration < INT32_MAX ? 0 : 1;
1356 if (track->mode == MODE_ISM)
1359 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1360 ffio_wfourcc(pb, "mdhd");
1361 avio_w8(pb, version);
1362 avio_wb24(pb, 0); /* flags */
1364 avio_wb64(pb, track->time);
1365 avio_wb64(pb, track->time);
1367 avio_wb32(pb, track->time); /* creation time */
1368 avio_wb32(pb, track->time); /* modification time */
1370 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1372 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1374 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1375 avio_wb16(pb, track->language); /* language */
1376 avio_wb16(pb, 0); /* reserved (quality) */
1378 if (version != 0 && track->mode == MODE_MOV) {
1379 av_log(NULL, AV_LOG_ERROR,
1380 "FATAL error, file duration too long for timebase, this file will not be\n"
1381 "playable with quicktime. Choose a different timebase or a different\n"
1382 "container format\n");
1388 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1390 int64_t pos = avio_tell(pb);
1391 avio_wb32(pb, 0); /* size */
1392 ffio_wfourcc(pb, "mdia");
1393 mov_write_mdhd_tag(pb, track);
1394 mov_write_hdlr_tag(pb, track);
1395 mov_write_minf_tag(pb, track);
1396 return update_size(pb, pos);
1399 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1401 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1402 track->timescale, AV_ROUND_UP);
1403 int version = duration < INT32_MAX ? 0 : 1;
1405 if (track->mode == MODE_ISM)
1408 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1409 ffio_wfourcc(pb, "tkhd");
1410 avio_w8(pb, version);
1411 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1412 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1413 MOV_TKHD_FLAG_IN_MOVIE);
1415 avio_wb64(pb, track->time);
1416 avio_wb64(pb, track->time);
1418 avio_wb32(pb, track->time); /* creation time */
1419 avio_wb32(pb, track->time); /* modification time */
1421 avio_wb32(pb, track->track_id); /* track-id */
1422 avio_wb32(pb, 0); /* reserved */
1424 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1426 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1428 avio_wb32(pb, 0); /* reserved */
1429 avio_wb32(pb, 0); /* reserved */
1430 avio_wb16(pb, 0); /* layer */
1431 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1432 /* Volume, only for audio */
1433 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1434 avio_wb16(pb, 0x0100);
1437 avio_wb16(pb, 0); /* reserved */
1439 /* Matrix structure */
1440 avio_wb32(pb, 0x00010000); /* reserved */
1441 avio_wb32(pb, 0x0); /* reserved */
1442 avio_wb32(pb, 0x0); /* reserved */
1443 avio_wb32(pb, 0x0); /* reserved */
1444 avio_wb32(pb, 0x00010000); /* reserved */
1445 avio_wb32(pb, 0x0); /* reserved */
1446 avio_wb32(pb, 0x0); /* reserved */
1447 avio_wb32(pb, 0x0); /* reserved */
1448 avio_wb32(pb, 0x40000000); /* reserved */
1450 /* Track width and height, for visual only */
1451 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1452 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1453 if (track->mode == MODE_MOV) {
1454 avio_wb32(pb, track->enc->width << 16);
1455 avio_wb32(pb, track->height << 16);
1457 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1458 if (!sample_aspect_ratio || track->height != track->enc->height)
1459 sample_aspect_ratio = 1;
1460 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1461 avio_wb32(pb, track->height * 0x10000);
1470 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1472 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1473 track->enc->sample_aspect_ratio.den);
1475 int64_t pos = avio_tell(pb);
1477 avio_wb32(pb, 0); /* size */
1478 ffio_wfourcc(pb, "tapt");
1481 ffio_wfourcc(pb, "clef");
1483 avio_wb32(pb, width << 16);
1484 avio_wb32(pb, track->enc->height << 16);
1487 ffio_wfourcc(pb, "enof");
1489 avio_wb32(pb, track->enc->width << 16);
1490 avio_wb32(pb, track->enc->height << 16);
1492 return update_size(pb, pos);
1495 // This box seems important for the psp playback ... without it the movie seems to hang
1496 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1498 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1499 track->timescale, AV_ROUND_UP);
1500 int version = duration < INT32_MAX ? 0 : 1;
1501 int entry_size, entry_count, size;
1502 int64_t delay, start_ct = track->cluster[0].cts;
1503 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1504 track->timescale, AV_ROUND_DOWN);
1505 version |= delay < INT32_MAX ? 0 : 1;
1507 entry_size = (version == 1) ? 20 : 12;
1508 entry_count = 1 + (delay > 0);
1509 size = 24 + entry_count * entry_size;
1511 /* write the atom data */
1512 avio_wb32(pb, size);
1513 ffio_wfourcc(pb, "edts");
1514 avio_wb32(pb, size - 8);
1515 ffio_wfourcc(pb, "elst");
1516 avio_w8(pb, version);
1517 avio_wb24(pb, 0); /* flags */
1519 avio_wb32(pb, entry_count);
1520 if (delay > 0) { /* add an empty edit to delay presentation */
1522 avio_wb64(pb, delay);
1525 avio_wb32(pb, delay);
1528 avio_wb32(pb, 0x00010000);
1533 avio_wb64(pb, duration);
1534 avio_wb64(pb, start_ct);
1536 avio_wb32(pb, duration);
1537 avio_wb32(pb, start_ct);
1539 avio_wb32(pb, 0x00010000);
1543 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1545 avio_wb32(pb, 20); // size
1546 ffio_wfourcc(pb, "tref");
1547 avio_wb32(pb, 12); // size (subatom)
1548 avio_wl32(pb, track->tref_tag);
1549 avio_wb32(pb, track->tref_id);
1553 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1554 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1556 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1557 ffio_wfourcc(pb, "uuid");
1558 ffio_wfourcc(pb, "USMT");
1559 avio_wb32(pb, 0x21d24fce);
1560 avio_wb32(pb, 0xbb88695c);
1561 avio_wb32(pb, 0xfac9c740);
1562 avio_wb32(pb, 0x1c); // another size here!
1563 ffio_wfourcc(pb, "MTDT");
1564 avio_wb32(pb, 0x00010012);
1565 avio_wb32(pb, 0x0a);
1566 avio_wb32(pb, 0x55c40000);
1572 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1574 AVFormatContext *ctx = track->rtp_ctx;
1575 char buf[1000] = "";
1578 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1579 NULL, NULL, 0, 0, ctx);
1580 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1583 avio_wb32(pb, len + 24);
1584 ffio_wfourcc(pb, "udta");
1585 avio_wb32(pb, len + 16);
1586 ffio_wfourcc(pb, "hnti");
1587 avio_wb32(pb, len + 8);
1588 ffio_wfourcc(pb, "sdp ");
1589 avio_write(pb, buf, len);
1593 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1594 MOVTrack *track, AVStream *st)
1596 int64_t pos = avio_tell(pb);
1597 avio_wb32(pb, 0); /* size */
1598 ffio_wfourcc(pb, "trak");
1599 mov_write_tkhd_tag(pb, track, st);
1600 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1601 (track->entry && track->cluster[0].dts)) {
1602 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
1603 mov_write_edts_tag(pb, track); // PSP Movies require edts box
1605 if (track->tref_tag)
1606 mov_write_tref_tag(pb, track);
1607 mov_write_mdia_tag(pb, track);
1608 if (track->mode == MODE_PSP)
1609 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1610 if (track->tag == MKTAG('r','t','p',' '))
1611 mov_write_udta_sdp(pb, track);
1612 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1613 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1614 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1615 mov_write_tapt_tag(pb, track);
1617 return update_size(pb, pos);
1620 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1622 int i, has_audio = 0, has_video = 0;
1623 int64_t pos = avio_tell(pb);
1624 int audio_profile = mov->iods_audio_profile;
1625 int video_profile = mov->iods_video_profile;
1626 for (i = 0; i < mov->nb_streams; i++) {
1627 if (mov->tracks[i].entry > 0) {
1628 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1629 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1632 if (audio_profile < 0)
1633 audio_profile = 0xFF - has_audio;
1634 if (video_profile < 0)
1635 video_profile = 0xFF - has_video;
1636 avio_wb32(pb, 0x0); /* size */
1637 ffio_wfourcc(pb, "iods");
1638 avio_wb32(pb, 0); /* version & flags */
1639 put_descr(pb, 0x10, 7);
1640 avio_wb16(pb, 0x004f);
1643 avio_w8(pb, audio_profile);
1644 avio_w8(pb, video_profile);
1646 return update_size(pb, pos);
1649 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1651 avio_wb32(pb, 0x20); /* size */
1652 ffio_wfourcc(pb, "trex");
1653 avio_wb32(pb, 0); /* version & flags */
1654 avio_wb32(pb, track->track_id); /* track ID */
1655 avio_wb32(pb, 1); /* default sample description index */
1656 avio_wb32(pb, 0); /* default sample duration */
1657 avio_wb32(pb, 0); /* default sample size */
1658 avio_wb32(pb, 0); /* default sample flags */
1662 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1664 int64_t pos = avio_tell(pb);
1666 avio_wb32(pb, 0x0); /* size */
1667 ffio_wfourcc(pb, "mvex");
1668 for (i = 0; i < mov->nb_streams; i++)
1669 mov_write_trex_tag(pb, &mov->tracks[i]);
1670 return update_size(pb, pos);
1673 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1675 int max_track_id = 1, i;
1676 int64_t max_track_len_temp, max_track_len = 0;
1679 for (i = 0; i < mov->nb_streams; i++) {
1680 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1681 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1683 mov->tracks[i].timescale,
1685 if (max_track_len < max_track_len_temp)
1686 max_track_len = max_track_len_temp;
1687 if (max_track_id < mov->tracks[i].track_id)
1688 max_track_id = mov->tracks[i].track_id;
1692 version = max_track_len < UINT32_MAX ? 0 : 1;
1693 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1694 ffio_wfourcc(pb, "mvhd");
1695 avio_w8(pb, version);
1696 avio_wb24(pb, 0); /* flags */
1698 avio_wb64(pb, mov->time);
1699 avio_wb64(pb, mov->time);
1701 avio_wb32(pb, mov->time); /* creation time */
1702 avio_wb32(pb, mov->time); /* modification time */
1704 avio_wb32(pb, MOV_TIMESCALE);
1705 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1707 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1708 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1709 avio_wb16(pb, 0); /* reserved */
1710 avio_wb32(pb, 0); /* reserved */
1711 avio_wb32(pb, 0); /* reserved */
1713 /* Matrix structure */
1714 avio_wb32(pb, 0x00010000); /* reserved */
1715 avio_wb32(pb, 0x0); /* reserved */
1716 avio_wb32(pb, 0x0); /* reserved */
1717 avio_wb32(pb, 0x0); /* reserved */
1718 avio_wb32(pb, 0x00010000); /* reserved */
1719 avio_wb32(pb, 0x0); /* reserved */
1720 avio_wb32(pb, 0x0); /* reserved */
1721 avio_wb32(pb, 0x0); /* reserved */
1722 avio_wb32(pb, 0x40000000); /* reserved */
1724 avio_wb32(pb, 0); /* reserved (preview time) */
1725 avio_wb32(pb, 0); /* reserved (preview duration) */
1726 avio_wb32(pb, 0); /* reserved (poster time) */
1727 avio_wb32(pb, 0); /* reserved (selection time) */
1728 avio_wb32(pb, 0); /* reserved (selection duration) */
1729 avio_wb32(pb, 0); /* reserved (current time) */
1730 avio_wb32(pb, max_track_id + 1); /* Next track id */
1734 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1737 avio_wb32(pb, 33); /* size */
1738 ffio_wfourcc(pb, "hdlr");
1741 ffio_wfourcc(pb, "mdir");
1742 ffio_wfourcc(pb, "appl");
1749 /* helper function to write a data tag with the specified string as data */
1750 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1753 int size = 16 + strlen(data);
1754 avio_wb32(pb, size); /* size */
1755 ffio_wfourcc(pb, "data");
1758 avio_write(pb, data, strlen(data));
1762 lang = ff_mov_iso639_to_lang("und", 1);
1763 avio_wb16(pb, strlen(data)); /* string length */
1764 avio_wb16(pb, lang);
1765 avio_write(pb, data, strlen(data));
1766 return strlen(data) + 4;
1770 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1771 const char *value, int lang, int long_style)
1774 if (value && value[0]) {
1775 int64_t pos = avio_tell(pb);
1776 avio_wb32(pb, 0); /* size */
1777 ffio_wfourcc(pb, name);
1778 mov_write_string_data_tag(pb, value, lang, long_style);
1779 size = update_size(pb, pos);
1784 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1785 const char *name, const char *tag,
1788 int l, lang = 0, len, len2;
1789 AVDictionaryEntry *t, *t2 = NULL;
1792 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1795 len = strlen(t->key);
1796 snprintf(tag2, sizeof(tag2), "%s-", tag);
1797 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1798 len2 = strlen(t2->key);
1799 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1800 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1805 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1808 /* iTunes track number */
1809 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1812 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1813 int size = 0, track = t ? atoi(t->value) : 0;
1815 avio_wb32(pb, 32); /* size */
1816 ffio_wfourcc(pb, "trkn");
1817 avio_wb32(pb, 24); /* size */
1818 ffio_wfourcc(pb, "data");
1819 avio_wb32(pb, 0); // 8 bytes empty
1821 avio_wb16(pb, 0); // empty
1822 avio_wb16(pb, track); // track number
1823 avio_wb16(pb, 0); // total track number
1824 avio_wb16(pb, 0); // empty
1830 /* iTunes meta data list */
1831 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1834 int64_t pos = avio_tell(pb);
1835 avio_wb32(pb, 0); /* size */
1836 ffio_wfourcc(pb, "ilst");
1837 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
1838 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
1839 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1840 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1841 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
1842 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
1843 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1844 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
1845 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
1846 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1847 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1848 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
1849 mov_write_string_metadata(s, pb, "desc", "description",1);
1850 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
1851 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
1852 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
1853 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
1854 mov_write_trkn_tag(pb, mov, s);
1855 return update_size(pb, pos);
1858 /* iTunes meta data tag */
1859 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1863 int64_t pos = avio_tell(pb);
1864 avio_wb32(pb, 0); /* size */
1865 ffio_wfourcc(pb, "meta");
1867 mov_write_itunes_hdlr_tag(pb, mov, s);
1868 mov_write_ilst_tag(pb, mov, s);
1869 size = update_size(pb, pos);
1873 static int utf8len(const uint8_t *b)
1878 GET_UTF8(val, *b++, return -1;)
1884 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1888 GET_UTF8(val, *b++, return -1;)
1891 avio_wb16(pb, 0x00);
1895 static uint16_t language_code(const char *str)
1897 return (((str[0] - 0x60) & 0x1F) << 10) +
1898 (((str[1] - 0x60) & 0x1F) << 5) +
1899 (( str[2] - 0x60) & 0x1F);
1902 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1903 const char *tag, const char *str)
1905 int64_t pos = avio_tell(pb);
1906 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
1907 if (!t || !utf8len(t->value))
1909 avio_wb32(pb, 0); /* size */
1910 ffio_wfourcc(pb, tag); /* type */
1911 avio_wb32(pb, 0); /* version + flags */
1912 if (!strcmp(tag, "yrrc"))
1913 avio_wb16(pb, atoi(t->value));
1915 avio_wb16(pb, language_code("eng")); /* language */
1916 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
1917 if (!strcmp(tag, "albm") &&
1918 (t = av_dict_get(s->metadata, "track", NULL, 0)))
1919 avio_w8(pb, atoi(t->value));
1921 return update_size(pb, pos);
1924 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1926 int64_t pos = avio_tell(pb);
1927 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1929 avio_wb32(pb, 0); // size
1930 ffio_wfourcc(pb, "chpl");
1931 avio_wb32(pb, 0x01000000); // version + flags
1932 avio_wb32(pb, 0); // unknown
1933 avio_w8(pb, nb_chapters);
1935 for (i = 0; i < nb_chapters; i++) {
1936 AVChapter *c = s->chapters[i];
1937 AVDictionaryEntry *t;
1938 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1940 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
1941 int len = FFMIN(strlen(t->value), 255);
1943 avio_write(pb, t->value, len);
1947 return update_size(pb, pos);
1950 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1953 AVIOContext *pb_buf;
1957 for (i = 0; i < s->nb_streams; i++)
1958 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1962 ret = avio_open_dyn_buf(&pb_buf);
1966 if (mov->mode & MODE_3GP) {
1967 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1968 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1969 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1970 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1971 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1972 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1973 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1974 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1975 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1976 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
1977 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
1978 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
1979 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
1980 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
1981 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
1982 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
1983 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
1984 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
1986 /* iTunes meta data */
1987 mov_write_meta_tag(pb_buf, mov, s);
1991 mov_write_chpl_tag(pb_buf, s);
1993 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1994 avio_wb32(pb, size + 8);
1995 ffio_wfourcc(pb, "udta");
1996 avio_write(pb, buf, size);
2003 static void mov_write_psp_udta_tag(AVIOContext *pb,
2004 const char *str, const char *lang, int type)
2006 int len = utf8len(str) + 1;
2009 avio_wb16(pb, len * 2 + 10); /* size */
2010 avio_wb32(pb, type); /* type */
2011 avio_wb16(pb, language_code(lang)); /* language */
2012 avio_wb16(pb, 0x01); /* ? */
2013 ascii_to_wc(pb, str);
2016 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2018 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2022 pos = avio_tell(pb);
2023 avio_wb32(pb, 0); /* size placeholder*/
2024 ffio_wfourcc(pb, "uuid");
2025 ffio_wfourcc(pb, "USMT");
2026 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2027 avio_wb32(pb, 0xbb88695c);
2028 avio_wb32(pb, 0xfac9c740);
2030 pos2 = avio_tell(pb);
2031 avio_wb32(pb, 0); /* size placeholder*/
2032 ffio_wfourcc(pb, "MTDT");
2036 avio_wb16(pb, 0x0C); /* size */
2037 avio_wb32(pb, 0x0B); /* type */
2038 avio_wb16(pb, language_code("und")); /* language */
2039 avio_wb16(pb, 0x0); /* ? */
2040 avio_wb16(pb, 0x021C); /* data */
2042 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2043 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2044 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2046 update_size(pb, pos2);
2047 return update_size(pb, pos);
2053 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2057 int64_t pos = avio_tell(pb);
2058 avio_wb32(pb, 0); /* size placeholder*/
2059 ffio_wfourcc(pb, "moov");
2061 for (i = 0; i < mov->nb_streams; i++) {
2062 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2065 mov->tracks[i].time = mov->time;
2066 mov->tracks[i].track_id = i + 1;
2069 if (mov->chapter_track)
2070 for (i = 0; i < s->nb_streams; i++) {
2071 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2072 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2074 for (i = 0; i < mov->nb_streams; i++) {
2075 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2076 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2077 mov->tracks[i].tref_id =
2078 mov->tracks[mov->tracks[i].src_track].track_id;
2082 mov_write_mvhd_tag(pb, mov);
2083 if (mov->mode != MODE_MOV && !mov->iods_skip)
2084 mov_write_iods_tag(pb, mov);
2085 for (i = 0; i < mov->nb_streams; i++) {
2086 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2087 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2090 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2091 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2093 if (mov->mode == MODE_PSP)
2094 mov_write_uuidusmt_tag(pb, s);
2096 mov_write_udta_tag(pb, mov, s);
2098 return update_size(pb, pos);
2101 static void param_write_int(AVIOContext *pb, const char *name, int value)
2103 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2106 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2108 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2111 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2114 len = FFMIN(sizeof(buf) / 2 - 1, len);
2115 ff_data_to_hex(buf, value, len, 0);
2116 buf[2 * len] = '\0';
2117 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2120 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2122 int64_t pos = avio_tell(pb);
2124 const uint8_t uuid[] = {
2125 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2126 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2130 ffio_wfourcc(pb, "uuid");
2131 avio_write(pb, uuid, sizeof(uuid));
2134 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2135 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2136 avio_printf(pb, "<head>\n");
2137 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2139 avio_printf(pb, "</head>\n");
2140 avio_printf(pb, "<body>\n");
2141 avio_printf(pb, "<switch>\n");
2142 for (i = 0; i < mov->nb_streams; i++) {
2143 MOVTrack *track = &mov->tracks[i];
2145 /* track->track_id is initialized in write_moov, and thus isn't known
2147 int track_id = i + 1;
2149 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2151 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2156 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2157 track->enc->bit_rate);
2158 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2159 param_write_int(pb, "trackID", track_id);
2160 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2161 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2163 int size = track->enc->extradata_size;
2164 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2166 param_write_hex(pb, "CodecPrivateData",
2167 ptr ? ptr : track->enc->extradata,
2171 param_write_string(pb, "FourCC", "H264");
2172 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2173 param_write_string(pb, "FourCC", "WVC1");
2174 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2175 track->enc->extradata_size);
2177 param_write_int(pb, "MaxWidth", track->enc->width);
2178 param_write_int(pb, "MaxHeight", track->enc->height);
2179 param_write_int(pb, "DisplayWidth", track->enc->width);
2180 param_write_int(pb, "DisplayHeight", track->enc->height);
2182 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2183 param_write_string(pb, "FourCC", "AACL");
2184 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2185 param_write_string(pb, "FourCC", "WMAP");
2187 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2188 track->enc->extradata_size);
2189 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2190 track->enc->codec_id));
2191 param_write_int(pb, "Channels", track->enc->channels);
2192 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2193 param_write_int(pb, "BitsPerSample", 16);
2194 param_write_int(pb, "PacketSize", track->enc->block_align ?
2195 track->enc->block_align : 4);
2197 avio_printf(pb, "</%s>\n", type);
2199 avio_printf(pb, "</switch>\n");
2200 avio_printf(pb, "</body>\n");
2201 avio_printf(pb, "</smil>\n");
2203 return update_size(pb, pos);
2206 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2209 ffio_wfourcc(pb, "mfhd");
2211 avio_wb32(pb, mov->fragments);
2215 static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
2216 int64_t moof_offset)
2218 int64_t pos = avio_tell(pb);
2219 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2220 MOV_TFHD_BASE_DATA_OFFSET;
2221 if (!track->entry) {
2222 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2224 flags |= MOV_TFHD_DEFAULT_FLAGS;
2227 /* Don't set a default sample size, the silverlight player refuses
2228 * to play files with that set. Don't set a default sample duration,
2229 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2230 * file format says it MUST NOT be set. */
2231 if (track->mode == MODE_ISM)
2232 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2233 MOV_TFHD_BASE_DATA_OFFSET);
2235 avio_wb32(pb, 0); /* size placeholder */
2236 ffio_wfourcc(pb, "tfhd");
2237 avio_w8(pb, 0); /* version */
2238 avio_wb24(pb, flags);
2240 avio_wb32(pb, track->track_id); /* track-id */
2241 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2242 avio_wb64(pb, moof_offset);
2243 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2244 track->default_duration = get_cluster_duration(track, 0);
2245 avio_wb32(pb, track->default_duration);
2247 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2248 track->default_size = track->entry ? track->cluster[0].size : 1;
2249 avio_wb32(pb, track->default_size);
2251 track->default_size = -1;
2253 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2254 track->default_sample_flags =
2255 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2256 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2257 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2258 avio_wb32(pb, track->default_sample_flags);
2261 return update_size(pb, pos);
2264 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2266 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2267 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2270 static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track, int moof_size)
2272 int64_t pos = avio_tell(pb);
2273 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2276 for (i = 0; i < track->entry; i++) {
2277 if (get_cluster_duration(track, i) != track->default_duration)
2278 flags |= MOV_TRUN_SAMPLE_DURATION;
2279 if (track->cluster[i].size != track->default_size)
2280 flags |= MOV_TRUN_SAMPLE_SIZE;
2281 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2282 flags |= MOV_TRUN_SAMPLE_FLAGS;
2284 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2285 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2286 if (track->flags & MOV_TRACK_CTTS)
2287 flags |= MOV_TRUN_SAMPLE_CTS;
2289 avio_wb32(pb, 0); /* size placeholder */
2290 ffio_wfourcc(pb, "trun");
2291 avio_w8(pb, 0); /* version */
2292 avio_wb24(pb, flags);
2294 avio_wb32(pb, track->entry); /* sample count */
2295 avio_wb32(pb, moof_size + 8 + track->data_offset +
2296 track->cluster[0].pos); /* data offset */
2297 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2298 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2300 for (i = 0; i < track->entry; i++) {
2301 if (flags & MOV_TRUN_SAMPLE_DURATION)
2302 avio_wb32(pb, get_cluster_duration(track, i));
2303 if (flags & MOV_TRUN_SAMPLE_SIZE)
2304 avio_wb32(pb, track->cluster[i].size);
2305 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2306 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2307 if (flags & MOV_TRUN_SAMPLE_CTS)
2308 avio_wb32(pb, track->cluster[i].cts);
2311 return update_size(pb, pos);
2314 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2316 int64_t pos = avio_tell(pb);
2317 const uint8_t uuid[] = {
2318 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2319 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2322 avio_wb32(pb, 0); /* size placeholder */
2323 ffio_wfourcc(pb, "uuid");
2324 avio_write(pb, uuid, sizeof(uuid));
2327 avio_wb64(pb, track->frag_start);
2328 avio_wb64(pb, track->start_dts + track->track_duration -
2329 track->cluster[0].dts);
2331 return update_size(pb, pos);
2334 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2335 MOVTrack *track, int entry)
2337 int n = track->nb_frag_info - 1 - entry, i;
2338 int size = 8 + 16 + 4 + 1 + 16*n;
2339 const uint8_t uuid[] = {
2340 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2341 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2347 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2348 avio_wb32(pb, size);
2349 ffio_wfourcc(pb, "uuid");
2350 avio_write(pb, uuid, sizeof(uuid));
2354 for (i = 0; i < n; i++) {
2355 int index = entry + 1 + i;
2356 avio_wb64(pb, track->frag_info[index].time);
2357 avio_wb64(pb, track->frag_info[index].duration);
2359 if (n < mov->ism_lookahead) {
2360 int free_size = 16 * (mov->ism_lookahead - n);
2361 avio_wb32(pb, free_size);
2362 ffio_wfourcc(pb, "free");
2363 for (i = 0; i < free_size - 8; i++)
2370 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2373 int64_t pos = avio_tell(pb);
2375 for (i = 0; i < mov->ism_lookahead; i++) {
2376 /* Update the tfrf tag for the last ism_lookahead fragments,
2377 * nb_frag_info - 1 is the next fragment to be written. */
2378 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2380 avio_seek(pb, pos, SEEK_SET);
2384 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2385 MOVTrack *track, int64_t moof_offset,
2388 int64_t pos = avio_tell(pb);
2389 avio_wb32(pb, 0); /* size placeholder */
2390 ffio_wfourcc(pb, "traf");
2392 mov_write_tfhd_tag(pb, track, moof_offset);
2393 mov_write_trun_tag(pb, track, moof_size);
2394 if (mov->mode == MODE_ISM) {
2395 mov_write_tfxd_tag(pb, track);
2397 if (mov->ism_lookahead) {
2398 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2400 track->tfrf_offset = avio_tell(pb);
2401 avio_wb32(pb, 8 + size);
2402 ffio_wfourcc(pb, "free");
2403 for (i = 0; i < size; i++)
2408 return update_size(pb, pos);
2411 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2412 int tracks, int moof_size)
2414 int64_t pos = avio_tell(pb);
2417 avio_wb32(pb, 0); /* size placeholder */
2418 ffio_wfourcc(pb, "moof");
2420 mov_write_mfhd_tag(pb, mov);
2421 for (i = 0; i < mov->nb_streams; i++) {
2422 MOVTrack *track = &mov->tracks[i];
2423 if (tracks >= 0 && i != tracks)
2427 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2430 return update_size(pb, pos);
2433 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2435 AVIOContext *avio_buf;
2439 if ((ret = avio_open_dyn_buf(&avio_buf)) < 0)
2441 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2442 moof_size = avio_close_dyn_buf(avio_buf, &buf);
2444 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2447 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2449 int64_t pos = avio_tell(pb);
2452 avio_wb32(pb, 0); /* size placeholder */
2453 ffio_wfourcc(pb, "tfra");
2454 avio_w8(pb, 1); /* version */
2457 avio_wb32(pb, track->track_id);
2458 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2459 avio_wb32(pb, track->nb_frag_info);
2460 for (i = 0; i < track->nb_frag_info; i++) {
2461 avio_wb64(pb, track->frag_info[i].time);
2462 avio_wb64(pb, track->frag_info[i].offset);
2463 avio_w8(pb, 1); /* traf number */
2464 avio_w8(pb, 1); /* trun number */
2465 avio_w8(pb, 1); /* sample number */
2468 return update_size(pb, pos);
2471 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2473 int64_t pos = avio_tell(pb);
2476 avio_wb32(pb, 0); /* size placeholder */
2477 ffio_wfourcc(pb, "mfra");
2478 /* An empty mfra atom is enough to indicate to the publishing point that
2479 * the stream has ended. */
2480 if (mov->flags & FF_MOV_FLAG_ISML)
2481 return update_size(pb, pos);
2483 for (i = 0; i < mov->nb_streams; i++) {
2484 MOVTrack *track = &mov->tracks[i];
2485 if (track->nb_frag_info)
2486 mov_write_tfra_tag(pb, track);
2490 ffio_wfourcc(pb, "mfro");
2491 avio_wb32(pb, 0); /* version + flags */
2492 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2494 return update_size(pb, pos);
2497 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2499 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2500 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2502 mov->mdat_pos = avio_tell(pb);
2503 avio_wb32(pb, 0); /* size placeholder*/
2504 ffio_wfourcc(pb, "mdat");
2508 /* TODO: This needs to be more general */
2509 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2511 MOVMuxContext *mov = s->priv_data;
2512 int64_t pos = avio_tell(pb);
2513 int has_h264 = 0, has_video = 0;
2517 for (i = 0; i < s->nb_streams; i++) {
2518 AVStream *st = s->streams[i];
2519 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2521 if (st->codec->codec_id == AV_CODEC_ID_H264)
2525 avio_wb32(pb, 0); /* size */
2526 ffio_wfourcc(pb, "ftyp");
2528 if (mov->mode == MODE_3GP) {
2529 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2530 minor = has_h264 ? 0x100 : 0x200;
2531 } else if (mov->mode & MODE_3G2) {
2532 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2533 minor = has_h264 ? 0x20000 : 0x10000;
2534 } else if (mov->mode == MODE_PSP)
2535 ffio_wfourcc(pb, "MSNV");
2536 else if (mov->mode == MODE_MP4)
2537 ffio_wfourcc(pb, "isom");
2538 else if (mov->mode == MODE_IPOD)
2539 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2540 else if (mov->mode == MODE_ISM)
2541 ffio_wfourcc(pb, "isml");
2543 ffio_wfourcc(pb, "qt ");
2545 avio_wb32(pb, minor);
2547 if (mov->mode == MODE_MOV)
2548 ffio_wfourcc(pb, "qt ");
2549 else if (mov->mode == MODE_ISM) {
2550 ffio_wfourcc(pb, "piff");
2551 ffio_wfourcc(pb, "iso2");
2553 ffio_wfourcc(pb, "isom");
2554 ffio_wfourcc(pb, "iso2");
2556 ffio_wfourcc(pb, "avc1");
2559 if (mov->mode == MODE_3GP)
2560 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2561 else if (mov->mode & MODE_3G2)
2562 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2563 else if (mov->mode == MODE_PSP)
2564 ffio_wfourcc(pb, "MSNV");
2565 else if (mov->mode == MODE_MP4)
2566 ffio_wfourcc(pb, "mp41");
2567 return update_size(pb, pos);
2570 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2572 AVCodecContext *video_codec = s->streams[0]->codec;
2573 AVCodecContext *audio_codec = s->streams[1]->codec;
2574 int audio_rate = audio_codec->sample_rate;
2575 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
2576 int audio_kbitrate = audio_codec->bit_rate / 1000;
2577 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2579 avio_wb32(pb, 0x94); /* size */
2580 ffio_wfourcc(pb, "uuid");
2581 ffio_wfourcc(pb, "PROF");
2583 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2584 avio_wb32(pb, 0xbb88695c);
2585 avio_wb32(pb, 0xfac9c740);
2587 avio_wb32(pb, 0x0); /* ? */
2588 avio_wb32(pb, 0x3); /* 3 sections ? */
2590 avio_wb32(pb, 0x14); /* size */
2591 ffio_wfourcc(pb, "FPRF");
2592 avio_wb32(pb, 0x0); /* ? */
2593 avio_wb32(pb, 0x0); /* ? */
2594 avio_wb32(pb, 0x0); /* ? */
2596 avio_wb32(pb, 0x2c); /* size */
2597 ffio_wfourcc(pb, "APRF"); /* audio */
2599 avio_wb32(pb, 0x2); /* TrackID */
2600 ffio_wfourcc(pb, "mp4a");
2601 avio_wb32(pb, 0x20f);
2603 avio_wb32(pb, audio_kbitrate);
2604 avio_wb32(pb, audio_kbitrate);
2605 avio_wb32(pb, audio_rate);
2606 avio_wb32(pb, audio_codec->channels);
2608 avio_wb32(pb, 0x34); /* size */
2609 ffio_wfourcc(pb, "VPRF"); /* video */
2611 avio_wb32(pb, 0x1); /* TrackID */
2612 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2613 ffio_wfourcc(pb, "avc1");
2614 avio_wb16(pb, 0x014D);
2615 avio_wb16(pb, 0x0015);
2617 ffio_wfourcc(pb, "mp4v");
2618 avio_wb16(pb, 0x0000);
2619 avio_wb16(pb, 0x0103);
2622 avio_wb32(pb, video_kbitrate);
2623 avio_wb32(pb, video_kbitrate);
2624 avio_wb32(pb, frame_rate);
2625 avio_wb32(pb, frame_rate);
2626 avio_wb16(pb, video_codec->width);
2627 avio_wb16(pb, video_codec->height);
2628 avio_wb32(pb, 0x010001); /* ? */
2631 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2634 int i, closed_gop = 0;
2636 for (i = 0; i < pkt->size - 4; i++) {
2637 c = (c << 8) + pkt->data[i];
2638 if (c == 0x1b8) { // gop
2639 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2640 } else if (c == 0x100) { // pic
2641 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2642 if (!temp_ref || closed_gop) // I picture is not reordered
2643 *flags = MOV_SYNC_SAMPLE;
2645 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2652 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2654 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2655 int seq = 0, entry = 0;
2656 int key = pkt->flags & AV_PKT_FLAG_KEY;
2657 start = find_next_marker(pkt->data, end);
2658 for (next = start; next < end; start = next) {
2659 next = find_next_marker(start + 4, end);
2660 switch (AV_RB32(start)) {
2661 case VC1_CODE_SEQHDR:
2664 case VC1_CODE_ENTRYPOINT:
2667 case VC1_CODE_SLICE:
2668 trk->vc1_info.slices = 1;
2672 if (!trk->entry && !fragment) {
2673 /* First packet in first fragment */
2674 trk->vc1_info.first_packet_seq = seq;
2675 trk->vc1_info.first_packet_entry = entry;
2676 } else if ((seq && !trk->vc1_info.packet_seq) ||
2677 (entry && !trk->vc1_info.packet_entry)) {
2679 for (i = 0; i < trk->entry; i++)
2680 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2681 trk->has_keyframes = 0;
2683 trk->vc1_info.packet_seq = 1;
2685 trk->vc1_info.packet_entry = 1;
2687 /* First fragment */
2688 if ((!seq || trk->vc1_info.first_packet_seq) &&
2689 (!entry || trk->vc1_info.first_packet_entry)) {
2690 /* First packet had the same headers as this one, readd the
2691 * sync sample flag. */
2692 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2693 trk->has_keyframes = 1;
2697 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2699 else if (trk->vc1_info.packet_seq)
2701 else if (trk->vc1_info.packet_entry)
2704 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2705 trk->has_keyframes++;
2709 static int mov_flush_fragment(AVFormatContext *s)
2711 MOVMuxContext *mov = s->priv_data;
2712 int i, first_track = -1;
2713 int64_t mdat_size = 0;
2715 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2718 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2719 int64_t pos = avio_tell(s->pb);
2721 AVIOContext *moov_buf;
2725 for (i = 0; i < mov->nb_streams; i++)
2726 if (!mov->tracks[i].entry)
2728 /* Don't write the initial moov unless all tracks have data */
2729 if (i < mov->nb_streams)
2732 if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
2734 mov_write_moov_tag(moov_buf, mov, s);
2735 buf_size = avio_close_dyn_buf(moov_buf, &buf);
2737 for (i = 0; i < mov->nb_streams; i++)
2738 mov->tracks[i].data_offset = pos + buf_size + 8;
2740 mov_write_moov_tag(s->pb, mov, s);
2742 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2743 mov->mdat_buf = NULL;
2744 avio_wb32(s->pb, buf_size + 8);
2745 ffio_wfourcc(s->pb, "mdat");
2746 avio_write(s->pb, buf, buf_size);
2751 for (i = 0; i < mov->nb_streams; i++) {
2752 if (mov->tracks[i].entry)
2753 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2754 mov->tracks[i].track_duration -
2755 mov->tracks[i].cluster[0].dts;
2756 mov->tracks[i].entry = 0;
2762 for (i = 0; i < mov->nb_streams; i++) {
2763 MOVTrack *track = &mov->tracks[i];
2764 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2765 track->data_offset = 0;
2767 track->data_offset = mdat_size;
2768 if (!track->mdat_buf)
2770 mdat_size += avio_tell(track->mdat_buf);
2771 if (first_track < 0)
2778 for (i = 0; i < mov->nb_streams; i++) {
2779 MOVTrack *track = &mov->tracks[i];
2780 int buf_size, write_moof = 1, moof_tracks = -1;
2782 int64_t duration = 0;
2785 duration = track->start_dts + track->track_duration -
2786 track->cluster[0].dts;
2787 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2788 if (!track->mdat_buf)
2790 mdat_size = avio_tell(track->mdat_buf);
2793 write_moof = i == first_track;
2797 MOVFragmentInfo *info;
2799 track->nb_frag_info++;
2800 if (track->nb_frag_info >= track->frag_info_capacity) {
2801 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2802 if (av_reallocp_array(&track->frag_info,
2804 sizeof(*track->frag_info)))
2805 return AVERROR(ENOMEM);
2806 track->frag_info_capacity = new_capacity;
2808 info = &track->frag_info[track->nb_frag_info - 1];
2809 info->offset = avio_tell(s->pb);
2810 info->time = mov->tracks[i].frag_start;
2811 info->duration = duration;
2812 mov_write_tfrf_tags(s->pb, mov, track);
2814 mov_write_moof_tag(s->pb, mov, moof_tracks);
2815 info->tfrf_offset = track->tfrf_offset;
2818 avio_wb32(s->pb, mdat_size + 8);
2819 ffio_wfourcc(s->pb, "mdat");
2823 track->frag_start += duration;
2825 if (!track->mdat_buf)
2827 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
2828 track->mdat_buf = NULL;
2830 avio_write(s->pb, buf, buf_size);
2840 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2842 MOVMuxContext *mov = s->priv_data;
2843 AVIOContext *pb = s->pb;
2844 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2845 AVCodecContext *enc = trk->enc;
2846 unsigned int samples_in_chunk = 0;
2847 int size = pkt->size;
2848 uint8_t *reformatted_data = NULL;
2850 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
2852 if (mov->fragments > 0) {
2853 if (!trk->mdat_buf) {
2854 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
2859 if (!mov->mdat_buf) {
2860 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
2867 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
2868 /* We must find out how many AMR blocks there are in one packet */
2869 static uint16_t packed_size[16] =
2870 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
2873 while (len < size && samples_in_chunk < 100) {
2874 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
2877 if (samples_in_chunk > 1) {
2878 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
2881 } else if (trk->sample_size)
2882 samples_in_chunk = size / trk->sample_size;
2884 samples_in_chunk = 1;
2886 /* copy extradata if it exists */
2887 if (trk->vos_len == 0 && enc->extradata_size > 0) {
2888 trk->vos_len = enc->extradata_size;
2889 trk->vos_data = av_malloc(trk->vos_len);
2890 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
2893 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
2894 /* from x264 or from bytestream h264 */
2895 /* nal reformating needed */
2896 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
2897 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
2899 avio_write(pb, reformatted_data, size);
2901 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
2904 avio_write(pb, pkt->data, size);
2907 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
2908 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
2909 /* copy frame to create needed atoms */
2910 trk->vos_len = size;
2911 trk->vos_data = av_malloc(size);
2913 return AVERROR(ENOMEM);
2914 memcpy(trk->vos_data, pkt->data, size);
2917 if (trk->entry >= trk->cluster_capacity) {
2918 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
2919 if (av_reallocp_array(&trk->cluster, new_capacity,
2920 sizeof(*trk->cluster)))
2921 return AVERROR(ENOMEM);
2922 trk->cluster_capacity = new_capacity;
2925 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2926 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
2927 trk->cluster[trk->entry].size = size;
2928 trk->cluster[trk->entry].entries = samples_in_chunk;
2929 trk->cluster[trk->entry].dts = pkt->dts;
2930 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
2931 /* First packet of a new fragment. We already wrote the duration
2932 * of the last packet of the previous fragment based on track_duration,
2933 * which might not exactly match our dts. Therefore adjust the dts
2934 * of this packet to be what the previous packets duration implies. */
2935 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
2937 if (trk->start_dts == AV_NOPTS_VALUE)
2938 trk->start_dts = pkt->dts;
2939 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
2941 if (pkt->pts == AV_NOPTS_VALUE) {
2942 av_log(s, AV_LOG_WARNING, "pts has no value\n");
2943 pkt->pts = pkt->dts;
2945 if (pkt->dts != pkt->pts)
2946 trk->flags |= MOV_TRACK_CTTS;
2947 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2948 trk->cluster[trk->entry].flags = 0;
2949 if (enc->codec_id == AV_CODEC_ID_VC1) {
2950 mov_parse_vc1_frame(pkt, trk, mov->fragments);
2951 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
2952 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
2953 trk->entry > 0) { // force sync sample for the first key frame
2954 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2955 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2956 trk->flags |= MOV_TRACK_STPS;
2958 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2960 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2961 trk->has_keyframes++;
2964 trk->sample_count += samples_in_chunk;
2965 mov->mdat_size += size;
2967 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2968 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
2969 reformatted_data, size);
2970 av_free(reformatted_data);
2974 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
2977 mov_flush_fragment(s);
2980 MOVMuxContext *mov = s->priv_data;
2981 MOVTrack *trk = &mov->tracks[pkt->stream_index];
2982 AVCodecContext *enc = trk->enc;
2983 int64_t frag_duration = 0;
2984 int size = pkt->size;
2987 return 0; /* Discard 0 sized packets */
2990 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
2991 s->streams[pkt->stream_index]->time_base,
2993 if ((mov->max_fragment_duration &&
2994 frag_duration >= mov->max_fragment_duration) ||
2995 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
2996 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
2997 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
2998 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
2999 if (frag_duration >= mov->min_fragment_duration)
3000 mov_flush_fragment(s);
3003 return ff_mov_write_packet(s, pkt);
3007 // QuickTime chapters involve an additional text track with the chapter names
3008 // as samples, and a tref pointing from the other tracks to the chapter one.
3009 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3011 MOVMuxContext *mov = s->priv_data;
3012 MOVTrack *track = &mov->tracks[tracknum];
3013 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3015 // These properties are required to make QT recognize the chapter track
3016 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3018 track->mode = mov->mode;
3019 track->tag = MKTAG('t','e','x','t');
3020 track->timescale = MOV_TIMESCALE;
3021 track->enc = avcodec_alloc_context3(NULL);
3023 return AVERROR(ENOMEM);
3024 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3025 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3026 if (track->enc->extradata == NULL)
3027 return AVERROR(ENOMEM);
3028 track->enc->extradata_size = sizeof(chapter_properties);
3029 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3031 for (i = 0; i < s->nb_chapters; i++) {
3032 AVChapter *c = s->chapters[i];
3033 AVDictionaryEntry *t;
3035 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3036 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3037 pkt.duration = end - pkt.dts;
3039 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3040 len = strlen(t->value);
3042 pkt.data = av_malloc(pkt.size);
3044 return AVERROR(ENOMEM);
3045 AV_WB16(pkt.data, len);
3046 memcpy(pkt.data + 2, t->value, len);
3047 ff_mov_write_packet(s, &pkt);
3048 av_freep(&pkt.data);
3056 * st->disposition controls the "enabled" flag in the tkhd tag.
3057 * QuickTime will not play a track if it is not enabled. So make sure
3058 * that one track of each type (audio, video, subtitle) is enabled.
3060 * Subtitles are special. For audio and video, setting "enabled" also
3061 * makes the track "default" (i.e. it is rendered when played). For
3062 * subtitles, an "enabled" subtitle is not rendered by default, but
3063 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3066 static void enable_tracks(AVFormatContext *s)
3068 MOVMuxContext *mov = s->priv_data;
3070 uint8_t enabled[AVMEDIA_TYPE_NB];
3071 int first[AVMEDIA_TYPE_NB];
3073 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3078 for (i = 0; i < s->nb_streams; i++) {
3079 AVStream *st = s->streams[i];
3081 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3082 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3085 if (first[st->codec->codec_type] < 0)
3086 first[st->codec->codec_type] = i;
3087 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3088 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3089 enabled[st->codec->codec_type] = 1;
3093 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3095 case AVMEDIA_TYPE_VIDEO:
3096 case AVMEDIA_TYPE_AUDIO:
3097 case AVMEDIA_TYPE_SUBTITLE:
3098 if (!enabled[i] && first[i] >= 0)
3099 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3105 static void mov_free(AVFormatContext *s)
3107 MOVMuxContext *mov = s->priv_data;
3110 if (mov->chapter_track) {
3111 if (mov->tracks[mov->chapter_track].enc)
3112 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3113 av_freep(&mov->tracks[mov->chapter_track].enc);
3116 for (i = 0; i < mov->nb_streams; i++) {
3117 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3118 ff_mov_close_hinting(&mov->tracks[i]);
3119 av_freep(&mov->tracks[i].cluster);
3120 av_freep(&mov->tracks[i].frag_info);
3122 if (mov->tracks[i].vos_len)
3123 av_free(mov->tracks[i].vos_data);
3126 av_freep(&mov->tracks);
3129 static int mov_write_header(AVFormatContext *s)
3131 AVIOContext *pb = s->pb;
3132 MOVMuxContext *mov = s->priv_data;
3133 AVDictionaryEntry *t;
3134 int i, hint_track = 0;
3136 /* Set the FRAGMENT flag if any of the fragmentation methods are
3138 if (mov->max_fragment_duration || mov->max_fragment_size ||
3139 (s->oformat && !strcmp(s->oformat->name, "ismv")) ||
3140 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3141 FF_MOV_FLAG_FRAG_KEYFRAME |
3142 FF_MOV_FLAG_FRAG_CUSTOM))
3143 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3145 /* faststart: moov at the beginning of the file, if supported */
3146 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3147 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3148 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3149 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3150 "with fragmentation and custom IO, disabling faststart\n");
3151 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3155 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3156 * is enabled, we don't support non-seekable output at all. */
3157 if (!s->pb->seekable &&
3158 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3159 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3163 /* Default mode == MP4 */
3164 mov->mode = MODE_MP4;
3166 if (s->oformat != NULL) {
3167 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3168 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3169 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3170 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3171 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3172 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3174 mov_write_ftyp_tag(pb,s);
3175 if (mov->mode == MODE_PSP) {
3176 if (s->nb_streams != 2) {
3177 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3180 mov_write_uuidprof_tag(pb, s);
3184 mov->nb_streams = s->nb_streams;
3185 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3186 mov->chapter_track = mov->nb_streams++;
3188 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3189 /* Add hint tracks for each audio and video stream */
3190 hint_track = mov->nb_streams;
3191 for (i = 0; i < s->nb_streams; i++) {
3192 AVStream *st = s->streams[i];
3193 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3194 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3200 // Reserve an extra stream for chapters for the case where chapters
3201 // are written in the trailer
3202 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3204 return AVERROR(ENOMEM);
3206 for (i = 0; i < s->nb_streams; i++) {
3207 AVStream *st= s->streams[i];
3208 MOVTrack *track= &mov->tracks[i];
3209 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3211 track->enc = st->codec;
3212 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3213 if (track->language < 0)
3214 track->language = 0;
3215 track->mode = mov->mode;
3216 track->tag = mov_find_codec_tag(s, track);
3218 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3219 "codec not currently supported in container\n", i);
3222 /* If hinting of this track is enabled by a later hint track,
3223 * this is updated. */
3224 track->hint_track = -1;
3225 track->start_dts = AV_NOPTS_VALUE;
3226 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3227 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3228 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3229 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3230 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3231 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3234 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3236 track->timescale = st->codec->time_base.den;
3237 if (track->mode == MODE_MOV && track->timescale > 100000)
3238 av_log(s, AV_LOG_WARNING,
3239 "WARNING codec timebase is very high. If duration is too long,\n"
3240 "file may not be playable by quicktime. Specify a shorter timebase\n"
3241 "or choose different container.\n");
3242 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3243 track->timescale = st->codec->sample_rate;
3244 /* set sample_size for PCM and ADPCM */
3245 if (av_get_bits_per_sample(st->codec->codec_id) ||
3246 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3247 if (!st->codec->block_align) {
3248 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3251 track->sample_size = st->codec->block_align;
3253 /* set audio_vbr for compressed audio */
3254 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3255 track->audio_vbr = 1;
3257 if (track->mode != MODE_MOV &&
3258 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3259 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3260 i, track->enc->sample_rate);
3263 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3264 track->timescale = st->codec->time_base.den;
3265 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3266 track->timescale = st->codec->time_base.den;
3269 track->height = st->codec->height;
3270 /* The ism specific timescale isn't mandatory, but is assumed by
3271 * some tools, such as mp4split. */
3272 if (mov->mode == MODE_ISM)
3273 track->timescale = 10000000;
3275 avpriv_set_pts_info(st, 64, 1, track->timescale);
3277 /* copy extradata if it exists */
3278 if (st->codec->extradata_size) {
3279 track->vos_len = st->codec->extradata_size;
3280 track->vos_data = av_malloc(track->vos_len);
3281 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3287 if (mov->mode == MODE_ISM) {
3288 /* If no fragmentation options have been set, set a default. */
3289 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3290 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3291 !mov->max_fragment_duration && !mov->max_fragment_size)
3292 mov->max_fragment_duration = 5000000;
3293 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF;
3296 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3297 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3298 mov->reserved_moov_pos = avio_tell(pb);
3299 mov_write_mdat_tag(pb, mov);
3302 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3303 mov->time = ff_iso8601_to_unix_time(t->value);
3305 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3307 if (mov->chapter_track)
3308 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3311 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3312 /* Initialize the hint tracks for each audio and video stream */
3313 for (i = 0; i < s->nb_streams; i++) {
3314 AVStream *st = s->streams[i];
3315 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3316 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3317 ff_mov_init_hinting(s, hint_track, i);
3325 if (mov->flags & FF_MOV_FLAG_ISML)
3326 mov_write_isml_manifest(pb, mov);
3328 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3329 mov_write_moov_tag(pb, mov, s);
3339 static int get_moov_size(AVFormatContext *s)
3343 AVIOContext *moov_buf;
3344 MOVMuxContext *mov = s->priv_data;
3346 if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
3348 mov_write_moov_tag(moov_buf, mov, s);
3349 ret = avio_close_dyn_buf(moov_buf, &buf);
3355 * This function gets the moov size if moved to the top of the file: the chunk
3356 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3357 * entries) when the moov is moved to the beginning, so the size of the moov
3358 * would change. It also updates the chunk offset tables.
3360 static int compute_moov_size(AVFormatContext *s)
3362 int i, moov_size, moov_size2;
3363 MOVMuxContext *mov = s->priv_data;
3365 moov_size = get_moov_size(s);
3369 for (i = 0; i < mov->nb_streams; i++)
3370 mov->tracks[i].data_offset += moov_size;
3372 moov_size2 = get_moov_size(s);
3376 /* if the size changed, we just switched from stco to co64 and need to
3377 * update the offsets */
3378 if (moov_size2 != moov_size)
3379 for (i = 0; i < mov->nb_streams; i++)
3380 mov->tracks[i].data_offset += moov_size2 - moov_size;
3385 static int shift_data(AVFormatContext *s)
3387 int ret = 0, moov_size;
3388 MOVMuxContext *mov = s->priv_data;
3389 int64_t pos, pos_end = avio_tell(s->pb);
3390 uint8_t *buf, *read_buf[2];
3391 int read_buf_id = 0;
3393 AVIOContext *read_pb;
3395 moov_size = compute_moov_size(s);
3399 buf = av_malloc(moov_size * 2);
3401 return AVERROR(ENOMEM);
3403 read_buf[1] = buf + moov_size;
3405 /* Shift the data: the AVIO context of the output can only be used for
3406 * writing, so we re-open the same output, but for reading. It also avoids
3407 * a read/seek/write/seek back and forth. */
3409 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3411 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3412 "the second pass (faststart)\n", s->filename);
3416 /* mark the end of the shift to up to the last data we wrote, and get ready
3418 pos_end = avio_tell(s->pb);
3419 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3421 /* start reading at where the new moov will be placed */
3422 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3423 pos = avio_tell(read_pb);
3425 #define READ_BLOCK do { \
3426 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3430 /* shift data by chunk of at most moov_size */
3435 n = read_size[read_buf_id];
3438 avio_write(s->pb, read_buf[read_buf_id], n);
3440 } while (pos < pos_end);
3441 avio_close(read_pb);
3448 static int mov_write_trailer(AVFormatContext *s)
3450 MOVMuxContext *mov = s->priv_data;
3451 AVIOContext *pb = s->pb;
3456 // If there were no chapters when the header was written, but there
3457 // are chapters now, write them in the trailer. This only works
3458 // when we are not doing fragments.
3459 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3460 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3461 mov->chapter_track = mov->nb_streams++;
3462 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3467 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3468 moov_pos = avio_tell(pb);
3470 /* Write size of mdat tag */
3471 if (mov->mdat_size + 8 <= UINT32_MAX) {
3472 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3473 avio_wb32(pb, mov->mdat_size + 8);
3475 /* overwrite 'wide' placeholder atom */
3476 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3477 /* special value: real atom size will be 64 bit value after
3480 ffio_wfourcc(pb, "mdat");
3481 avio_wb64(pb, mov->mdat_size + 16);
3483 avio_seek(pb, moov_pos, SEEK_SET);
3485 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3486 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
3487 res = shift_data(s);
3489 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
3490 mov_write_moov_tag(pb, mov, s);
3493 mov_write_moov_tag(pb, mov, s);
3496 mov_flush_fragment(s);
3497 mov_write_mfra_tag(pb, mov);
3500 for (i = 0; i < mov->nb_streams; i++) {
3501 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3502 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3503 int64_t off = avio_tell(pb);
3505 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3506 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3507 avio_write(pb, buf, 7);
3508 avio_seek(pb, off, SEEK_SET);
3519 #if CONFIG_MOV_MUXER
3521 AVOutputFormat ff_mov_muxer = {
3523 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3524 .extensions = "mov",
3525 .priv_data_size = sizeof(MOVMuxContext),
3526 .audio_codec = AV_CODEC_ID_AAC,
3527 .video_codec = CONFIG_LIBX264_ENCODER ?
3528 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3529 .write_header = mov_write_header,
3530 .write_packet = mov_write_packet,
3531 .write_trailer = mov_write_trailer,
3532 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3533 .codec_tag = (const AVCodecTag* const []){
3534 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
3536 .priv_class = &mov_muxer_class,
3539 #if CONFIG_TGP_MUXER
3541 AVOutputFormat ff_tgp_muxer = {
3543 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3544 .extensions = "3gp",
3545 .priv_data_size = sizeof(MOVMuxContext),
3546 .audio_codec = AV_CODEC_ID_AMR_NB,
3547 .video_codec = AV_CODEC_ID_H263,
3548 .write_header = mov_write_header,
3549 .write_packet = mov_write_packet,
3550 .write_trailer = mov_write_trailer,
3551 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3552 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3553 .priv_class = &tgp_muxer_class,
3556 #if CONFIG_MP4_MUXER
3558 AVOutputFormat ff_mp4_muxer = {
3560 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3561 .mime_type = "application/mp4",
3562 .extensions = "mp4",
3563 .priv_data_size = sizeof(MOVMuxContext),
3564 .audio_codec = AV_CODEC_ID_AAC,
3565 .video_codec = CONFIG_LIBX264_ENCODER ?
3566 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3567 .write_header = mov_write_header,
3568 .write_packet = mov_write_packet,
3569 .write_trailer = mov_write_trailer,
3570 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3571 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3572 .priv_class = &mp4_muxer_class,
3575 #if CONFIG_PSP_MUXER
3577 AVOutputFormat ff_psp_muxer = {
3579 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3580 .extensions = "mp4,psp",
3581 .priv_data_size = sizeof(MOVMuxContext),
3582 .audio_codec = AV_CODEC_ID_AAC,
3583 .video_codec = CONFIG_LIBX264_ENCODER ?
3584 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3585 .write_header = mov_write_header,
3586 .write_packet = mov_write_packet,
3587 .write_trailer = mov_write_trailer,
3588 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3589 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3590 .priv_class = &psp_muxer_class,
3593 #if CONFIG_TG2_MUXER
3595 AVOutputFormat ff_tg2_muxer = {
3597 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3598 .extensions = "3g2",
3599 .priv_data_size = sizeof(MOVMuxContext),
3600 .audio_codec = AV_CODEC_ID_AMR_NB,
3601 .video_codec = AV_CODEC_ID_H263,
3602 .write_header = mov_write_header,
3603 .write_packet = mov_write_packet,
3604 .write_trailer = mov_write_trailer,
3605 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3606 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3607 .priv_class = &tg2_muxer_class,
3610 #if CONFIG_IPOD_MUXER
3612 AVOutputFormat ff_ipod_muxer = {
3614 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3615 .mime_type = "application/mp4",
3616 .extensions = "m4v,m4a",
3617 .priv_data_size = sizeof(MOVMuxContext),
3618 .audio_codec = AV_CODEC_ID_AAC,
3619 .video_codec = AV_CODEC_ID_H264,
3620 .write_header = mov_write_header,
3621 .write_packet = mov_write_packet,
3622 .write_trailer = mov_write_trailer,
3623 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3624 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3625 .priv_class = &ipod_muxer_class,
3628 #if CONFIG_ISMV_MUXER
3630 AVOutputFormat ff_ismv_muxer = {
3632 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3633 .mime_type = "application/mp4",
3634 .extensions = "ismv,isma",
3635 .priv_data_size = sizeof(MOVMuxContext),
3636 .audio_codec = AV_CODEC_ID_AAC,
3637 .video_codec = AV_CODEC_ID_H264,
3638 .write_header = mov_write_header,
3639 .write_packet = mov_write_packet,
3640 .write_trailer = mov_write_trailer,
3641 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3642 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3643 .priv_class = &ismv_muxer_class,