3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1.h"
37 #include "libavcodec/raw.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/pixdesc.h"
52 static const AVOption options[] = {
53 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
56 { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
64 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
65 { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
66 { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
67 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
72 { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
73 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
77 #define MOV_CLASS(flavor)\
78 static const AVClass flavor ## _muxer_class = {\
79 .class_name = #flavor " muxer",\
80 .item_name = av_default_item_name,\
82 .version = LIBAVUTIL_VERSION_INT,\
85 static int get_moov_size(AVFormatContext *s);
87 //FIXME support 64 bit variant with wide placeholders
88 static int64_t update_size(AVIOContext *pb, int64_t pos)
90 int64_t curpos = avio_tell(pb);
91 avio_seek(pb, pos, SEEK_SET);
92 avio_wb32(pb, curpos - pos); /* rewrite size */
93 avio_seek(pb, curpos, SEEK_SET);
98 static int supports_edts(MOVMuxContext *mov)
100 // EDTS with fragments is tricky as we don't know the duration when its written
101 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
104 static int co64_required(const MOVTrack *track)
106 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
111 /* Chunk offset atom */
112 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
115 int mode64 = co64_required(track); // use 32 bit size variant if possible
116 int64_t pos = avio_tell(pb);
117 avio_wb32(pb, 0); /* size */
119 ffio_wfourcc(pb, "co64");
121 ffio_wfourcc(pb, "stco");
122 avio_wb32(pb, 0); /* version & flags */
123 avio_wb32(pb, track->chunkCount); /* entry count */
124 for (i = 0; i < track->entry; i++) {
125 if (!track->cluster[i].chunkNum)
128 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
130 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
132 return update_size(pb, pos);
135 /* Sample size atom */
136 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
139 int i, j, entries = 0, tst = -1, oldtst = -1;
141 int64_t pos = avio_tell(pb);
142 avio_wb32(pb, 0); /* size */
143 ffio_wfourcc(pb, "stsz");
144 avio_wb32(pb, 0); /* version & flags */
146 for (i = 0; i < track->entry; i++) {
147 tst = track->cluster[i].size / track->cluster[i].entries;
148 if (oldtst != -1 && tst != oldtst)
151 entries += track->cluster[i].entries;
153 if (equalChunks && track->entry) {
154 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
155 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
156 avio_wb32(pb, sSize); // sample size
157 avio_wb32(pb, entries); // sample count
159 avio_wb32(pb, 0); // sample size
160 avio_wb32(pb, entries); // sample count
161 for (i = 0; i < track->entry; i++) {
162 for (j = 0; j < track->cluster[i].entries; j++) {
163 avio_wb32(pb, track->cluster[i].size /
164 track->cluster[i].entries);
168 return update_size(pb, pos);
171 /* Sample to chunk atom */
172 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
174 int index = 0, oldval = -1, i;
175 int64_t entryPos, curpos;
177 int64_t pos = avio_tell(pb);
178 avio_wb32(pb, 0); /* size */
179 ffio_wfourcc(pb, "stsc");
180 avio_wb32(pb, 0); // version & flags
181 entryPos = avio_tell(pb);
182 avio_wb32(pb, track->chunkCount); // entry count
183 for (i = 0; i < track->entry; i++) {
184 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
185 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
186 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
187 avio_wb32(pb, 0x1); // sample description index
188 oldval = track->cluster[i].samples_in_chunk;
192 curpos = avio_tell(pb);
193 avio_seek(pb, entryPos, SEEK_SET);
194 avio_wb32(pb, index); // rewrite size
195 avio_seek(pb, curpos, SEEK_SET);
197 return update_size(pb, pos);
200 /* Sync sample atom */
201 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
203 int64_t curpos, entryPos;
205 int64_t pos = avio_tell(pb);
206 avio_wb32(pb, 0); // size
207 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
208 avio_wb32(pb, 0); // version & flags
209 entryPos = avio_tell(pb);
210 avio_wb32(pb, track->entry); // entry count
211 for (i = 0; i < track->entry; i++) {
212 if (track->cluster[i].flags & flag) {
213 avio_wb32(pb, i + 1);
217 curpos = avio_tell(pb);
218 avio_seek(pb, entryPos, SEEK_SET);
219 avio_wb32(pb, index); // rewrite size
220 avio_seek(pb, curpos, SEEK_SET);
221 return update_size(pb, pos);
224 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
226 avio_wb32(pb, 0x11); /* size */
227 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
228 else ffio_wfourcc(pb, "damr");
229 ffio_wfourcc(pb, "FFMP");
230 avio_w8(pb, 0); /* decoder version */
232 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
233 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
234 avio_w8(pb, 0x01); /* Frames per sample */
238 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
243 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
245 if (track->vos_len < 7)
249 ffio_wfourcc(pb, "dac3");
251 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
252 fscod = get_bits(&gbc, 2);
253 frmsizecod = get_bits(&gbc, 6);
254 bsid = get_bits(&gbc, 5);
255 bsmod = get_bits(&gbc, 3);
256 acmod = get_bits(&gbc, 3);
258 skip_bits(&gbc, 2); // dsurmod
260 if ((acmod & 1) && acmod != 1)
261 skip_bits(&gbc, 2); // cmixlev
263 skip_bits(&gbc, 2); // surmixlev
265 lfeon = get_bits1(&gbc);
267 init_put_bits(&pbc, buf, sizeof(buf));
268 put_bits(&pbc, 2, fscod);
269 put_bits(&pbc, 5, bsid);
270 put_bits(&pbc, 3, bsmod);
271 put_bits(&pbc, 3, acmod);
272 put_bits(&pbc, 1, lfeon);
273 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
274 put_bits(&pbc, 5, 0); // reserved
276 flush_put_bits(&pbc);
277 avio_write(pb, buf, sizeof(buf));
283 * This function writes extradata "as is".
284 * Extradata must be formatted like a valid atom (with size and tag).
286 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
288 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
289 return track->enc->extradata_size;
292 static int mov_write_enda_tag(AVIOContext *pb)
295 ffio_wfourcc(pb, "enda");
296 avio_wb16(pb, 1); /* little endian */
300 static int mov_write_enda_tag_be(AVIOContext *pb)
303 ffio_wfourcc(pb, "enda");
304 avio_wb16(pb, 0); /* big endian */
308 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
313 avio_w8(pb, (size >> (7 * i)) | 0x80);
314 avio_w8(pb, size & 0x7F);
317 static unsigned compute_avg_bitrate(MOVTrack *track)
321 if (!track->track_duration)
323 for (i = 0; i < track->entry; i++)
324 size += track->cluster[i].size;
325 return size * 8 * track->timescale / track->track_duration;
328 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
330 int64_t pos = avio_tell(pb);
331 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
332 unsigned avg_bitrate;
334 avio_wb32(pb, 0); // size
335 ffio_wfourcc(pb, "esds");
336 avio_wb32(pb, 0); // Version
339 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
340 avio_wb16(pb, track->track_id);
341 avio_w8(pb, 0x00); // flags (= no flags)
343 // DecoderConfig descriptor
344 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
346 // Object type indication
347 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
348 track->enc->codec_id == AV_CODEC_ID_MP3) &&
349 track->enc->sample_rate > 24000)
350 avio_w8(pb, 0x6B); // 11172-3
352 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
354 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
355 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
356 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
357 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
358 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
359 avio_w8(pb, 0x15); // flags (= Audiostream)
361 avio_w8(pb, 0x11); // flags (= Visualstream)
363 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
365 avg_bitrate = compute_avg_bitrate(track);
366 // maxbitrate (FIXME should be max rate in any 1 sec window)
367 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
368 avio_wb32(pb, avg_bitrate);
370 if (track->vos_len) {
371 // DecoderSpecific info descriptor
372 put_descr(pb, 0x05, track->vos_len);
373 avio_write(pb, track->vos_data, track->vos_len);
377 put_descr(pb, 0x06, 1);
379 return update_size(pb, pos);
382 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
384 return codec_id == AV_CODEC_ID_PCM_S24LE ||
385 codec_id == AV_CODEC_ID_PCM_S32LE ||
386 codec_id == AV_CODEC_ID_PCM_F32LE ||
387 codec_id == AV_CODEC_ID_PCM_F64LE;
390 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
392 return codec_id == AV_CODEC_ID_PCM_S24BE ||
393 codec_id == AV_CODEC_ID_PCM_S32BE ||
394 codec_id == AV_CODEC_ID_PCM_F32BE ||
395 codec_id == AV_CODEC_ID_PCM_F64BE;
398 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
401 int64_t pos = avio_tell(pb);
403 avio_wl32(pb, track->tag); // store it byteswapped
404 track->enc->codec_tag = av_bswap16(track->tag >> 16);
405 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
407 return update_size(pb, pos);
410 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
413 int64_t pos = avio_tell(pb);
415 ffio_wfourcc(pb, "wfex");
416 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
418 return update_size(pb, pos);
421 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
423 uint32_t layout_tag, bitmap;
424 int64_t pos = avio_tell(pb);
426 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
427 track->enc->channel_layout,
430 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
431 "lack of channel information\n");
435 if (track->multichannel_as_mono)
438 avio_wb32(pb, 0); // Size
439 ffio_wfourcc(pb, "chan"); // Type
440 avio_w8(pb, 0); // Version
441 avio_wb24(pb, 0); // Flags
442 avio_wb32(pb, layout_tag); // mChannelLayoutTag
443 avio_wb32(pb, bitmap); // mChannelBitmap
444 avio_wb32(pb, 0); // mNumberChannelDescriptions
446 return update_size(pb, pos);
449 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
451 int64_t pos = avio_tell(pb);
453 avio_wb32(pb, 0); /* size */
454 ffio_wfourcc(pb, "wave");
456 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
457 avio_wb32(pb, 12); /* size */
458 ffio_wfourcc(pb, "frma");
459 avio_wl32(pb, track->tag);
462 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
463 /* useless atom needed by mplayer, ipod, not needed by quicktime */
464 avio_wb32(pb, 12); /* size */
465 ffio_wfourcc(pb, "mp4a");
467 mov_write_esds_tag(pb, track);
468 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
469 mov_write_enda_tag(pb);
470 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
471 mov_write_enda_tag_be(pb);
472 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
473 mov_write_amr_tag(pb, track);
474 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
475 mov_write_ac3_tag(pb, track);
476 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
477 track->enc->codec_id == AV_CODEC_ID_QDM2) {
478 mov_write_extradata_tag(pb, track);
479 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
480 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
481 mov_write_ms_tag(pb, track);
484 avio_wb32(pb, 8); /* size */
485 avio_wb32(pb, 0); /* null tag */
487 return update_size(pb, pos);
490 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
493 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
494 int unescaped_size, seq_found = 0;
495 int level = 0, interlace = 0;
496 int packet_seq = track->vc1_info.packet_seq;
497 int packet_entry = track->vc1_info.packet_entry;
498 int slices = track->vc1_info.slices;
501 if (track->start_dts == AV_NOPTS_VALUE) {
502 /* No packets written yet, vc1_info isn't authoritative yet. */
503 /* Assume inline sequence and entry headers. This will be
504 * overwritten at the end if the file is seekable. */
505 packet_seq = packet_entry = 1;
508 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
510 return AVERROR(ENOMEM);
511 start = find_next_marker(track->vos_data, end);
512 for (next = start; next < end; start = next) {
515 next = find_next_marker(start + 4, end);
516 size = next - start - 4;
519 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
520 init_get_bits(&gb, unescaped, 8 * unescaped_size);
521 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
522 int profile = get_bits(&gb, 2);
523 if (profile != PROFILE_ADVANCED) {
525 return AVERROR(ENOSYS);
528 level = get_bits(&gb, 3);
529 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
531 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
532 skip_bits(&gb, 1); /* broadcast */
533 interlace = get_bits1(&gb);
534 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
539 return AVERROR(ENOSYS);
542 init_put_bits(&pbc, buf, 7);
543 /* VC1DecSpecStruc */
544 put_bits(&pbc, 4, 12); /* profile - advanced */
545 put_bits(&pbc, 3, level);
546 put_bits(&pbc, 1, 0); /* reserved */
547 /* VC1AdvDecSpecStruc */
548 put_bits(&pbc, 3, level);
549 put_bits(&pbc, 1, 0); /* cbr */
550 put_bits(&pbc, 6, 0); /* reserved */
551 put_bits(&pbc, 1, !interlace); /* no interlace */
552 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
553 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
554 put_bits(&pbc, 1, !slices); /* no slice code */
555 put_bits(&pbc, 1, 0); /* no bframe */
556 put_bits(&pbc, 1, 0); /* reserved */
559 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
560 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
562 put_bits32(&pbc, 0xffffffff);
564 flush_put_bits(&pbc);
571 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
573 uint8_t buf[7] = { 0 };
576 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
579 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
580 ffio_wfourcc(pb, "dvc1");
581 track->vc1_info.struct_offset = avio_tell(pb);
582 avio_write(pb, buf, sizeof(buf));
583 avio_write(pb, track->vos_data, track->vos_len);
588 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
590 avio_wb32(pb, track->vos_len + 8);
591 ffio_wfourcc(pb, "glbl");
592 avio_write(pb, track->vos_data, track->vos_len);
593 return 8 + track->vos_len;
597 * Compute flags for 'lpcm' tag.
598 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
600 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
603 case AV_CODEC_ID_PCM_F32BE:
604 case AV_CODEC_ID_PCM_F64BE:
606 case AV_CODEC_ID_PCM_F32LE:
607 case AV_CODEC_ID_PCM_F64LE:
609 case AV_CODEC_ID_PCM_U8:
611 case AV_CODEC_ID_PCM_S16BE:
612 case AV_CODEC_ID_PCM_S24BE:
613 case AV_CODEC_ID_PCM_S32BE:
615 case AV_CODEC_ID_PCM_S8:
616 case AV_CODEC_ID_PCM_S16LE:
617 case AV_CODEC_ID_PCM_S24LE:
618 case AV_CODEC_ID_PCM_S32LE:
625 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
629 if (cluster_idx >= track->entry)
632 if (cluster_idx + 1 == track->entry)
633 next_dts = track->track_duration + track->start_dts;
635 next_dts = track->cluster[cluster_idx + 1].dts;
637 next_dts -= track->cluster[cluster_idx].dts;
639 av_assert0(next_dts >= 0);
640 av_assert0(next_dts <= INT_MAX);
645 static int get_samples_per_packet(MOVTrack *track)
647 int i, first_duration;
649 // return track->enc->frame_size;
651 /* use 1 for raw PCM */
652 if (!track->audio_vbr)
655 /* check to see if duration is constant for all clusters */
658 first_duration = get_cluster_duration(track, 0);
659 for (i = 1; i < track->entry; i++) {
660 if (get_cluster_duration(track, i) != first_duration)
663 return first_duration;
666 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
668 int64_t pos = avio_tell(pb);
670 uint32_t tag = track->tag;
672 if (track->mode == MODE_MOV) {
673 if (track->timescale > UINT16_MAX) {
674 if (mov_get_lpcm_flags(track->enc->codec_id))
675 tag = AV_RL32("lpcm");
677 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
678 mov_pcm_be_gt16(track->enc->codec_id) ||
679 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
680 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
681 track->enc->codec_id == AV_CODEC_ID_QDM2) {
686 avio_wb32(pb, 0); /* size */
687 avio_wl32(pb, tag); // store it byteswapped
688 avio_wb32(pb, 0); /* Reserved */
689 avio_wb16(pb, 0); /* Reserved */
690 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
692 /* SoundDescription */
693 avio_wb16(pb, version); /* Version */
694 avio_wb16(pb, 0); /* Revision level */
695 avio_wb32(pb, 0); /* Reserved */
700 avio_wb16(pb, 0xfffe);
702 avio_wb32(pb, 0x00010000);
704 avio_wb64(pb, av_double2int(track->enc->sample_rate));
705 avio_wb32(pb, track->enc->channels);
706 avio_wb32(pb, 0x7F000000);
707 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
708 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
709 avio_wb32(pb, track->sample_size);
710 avio_wb32(pb, get_samples_per_packet(track));
712 if (track->mode == MODE_MOV) {
713 avio_wb16(pb, track->enc->channels);
714 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
715 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
716 avio_wb16(pb, 8); /* bits per sample */
719 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
720 } else { /* reserved for mp4/3gp */
726 avio_wb16(pb, 0); /* packet size (= 0) */
727 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
728 track->enc->sample_rate : 0);
729 avio_wb16(pb, 0); /* Reserved */
732 if (version == 1) { /* SoundDescription V1 extended info */
733 if (mov_pcm_le_gt16(track->enc->codec_id) ||
734 mov_pcm_be_gt16(track->enc->codec_id))
735 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
737 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
738 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
739 avio_wb32(pb, track->sample_size); /* Bytes per frame */
740 avio_wb32(pb, 2); /* Bytes per sample */
743 if (track->mode == MODE_MOV &&
744 (track->enc->codec_id == AV_CODEC_ID_AAC ||
745 track->enc->codec_id == AV_CODEC_ID_AC3 ||
746 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
747 track->enc->codec_id == AV_CODEC_ID_ALAC ||
748 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
749 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
750 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
751 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
752 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
753 mov_write_wave_tag(pb, track);
754 else if (track->tag == MKTAG('m','p','4','a'))
755 mov_write_esds_tag(pb, track);
756 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
757 mov_write_amr_tag(pb, track);
758 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
759 mov_write_ac3_tag(pb, track);
760 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
761 mov_write_extradata_tag(pb, track);
762 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
763 mov_write_wfex_tag(pb, track);
764 else if (track->vos_len > 0)
765 mov_write_glbl_tag(pb, track);
767 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
768 mov_write_chan_tag(pb, track);
770 return update_size(pb, pos);
773 static int mov_write_d263_tag(AVIOContext *pb)
775 avio_wb32(pb, 0xf); /* size */
776 ffio_wfourcc(pb, "d263");
777 ffio_wfourcc(pb, "FFMP");
778 avio_w8(pb, 0); /* decoder version */
779 /* FIXME use AVCodecContext level/profile, when encoder will set values */
780 avio_w8(pb, 0xa); /* level */
781 avio_w8(pb, 0); /* profile */
785 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
787 int64_t pos = avio_tell(pb);
790 ffio_wfourcc(pb, "avcC");
791 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
792 return update_size(pb, pos);
795 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
797 int64_t pos = avio_tell(pb);
800 ffio_wfourcc(pb, "hvcC");
801 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
802 return update_size(pb, pos);
805 /* also used by all avid codecs (dv, imx, meridien) and their variants */
806 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
809 avio_wb32(pb, 24); /* size */
810 ffio_wfourcc(pb, "ACLR");
811 ffio_wfourcc(pb, "ACLR");
812 ffio_wfourcc(pb, "0001");
813 if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
814 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
815 } else { /* Full range (0-255) */
816 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
818 avio_wb32(pb, 0); /* unknown */
820 avio_wb32(pb, 24); /* size */
821 ffio_wfourcc(pb, "APRG");
822 ffio_wfourcc(pb, "APRG");
823 ffio_wfourcc(pb, "0001");
824 avio_wb32(pb, 1); /* unknown */
825 avio_wb32(pb, 0); /* unknown */
827 avio_wb32(pb, 120); /* size */
828 ffio_wfourcc(pb, "ARES");
829 ffio_wfourcc(pb, "ARES");
830 ffio_wfourcc(pb, "0001");
831 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
832 avio_wb32(pb, track->enc->width);
833 /* values below are based on samples created with quicktime and avid codecs */
834 if (track->vos_data[5] & 2) { // interlaced
835 avio_wb32(pb, track->enc->height / 2);
836 avio_wb32(pb, 2); /* unknown */
837 avio_wb32(pb, 0); /* unknown */
838 avio_wb32(pb, 4); /* unknown */
840 avio_wb32(pb, track->enc->height);
841 avio_wb32(pb, 1); /* unknown */
842 avio_wb32(pb, 0); /* unknown */
843 if (track->enc->height == 1080)
844 avio_wb32(pb, 5); /* unknown */
846 avio_wb32(pb, 6); /* unknown */
849 for (i = 0; i < 10; i++)
852 /* extra padding for stsd needed */
857 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
859 int tag = track->enc->codec_tag;
861 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
864 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
865 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
866 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
867 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
868 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
869 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
870 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
871 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
872 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
877 static const AVCodecTag codec_ipod_tags[] = {
878 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
879 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
880 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
881 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
882 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
883 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
884 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
885 { AV_CODEC_ID_NONE, 0 },
888 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
890 int tag = track->enc->codec_tag;
892 // keep original tag for subs, ipod supports both formats
893 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
894 (tag == MKTAG('t', 'x', '3', 'g') ||
895 tag == MKTAG('t', 'e', 'x', 't'))))
896 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
898 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
899 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
900 "Quicktime/Ipod might not play the file\n");
905 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
909 if (track->enc->width == 720) { /* SD */
910 if (track->enc->height == 480) { /* NTSC */
911 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
912 else tag = MKTAG('d','v','c',' ');
913 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
914 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
915 else tag = MKTAG('d','v','p','p');
916 } else if (track->enc->height == 720) { /* HD 720 line */
917 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
918 else tag = MKTAG('d','v','h','p');
919 } else if (track->enc->height == 1080) { /* HD 1080 line */
920 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
921 else tag = MKTAG('d','v','h','6');
923 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
930 static AVRational find_fps(AVFormatContext *s, AVStream *st)
932 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
933 /* if the codec time base makes no sense, try to fallback on stream frame rate */
934 if (av_timecode_check_frame_rate(rate) < 0) {
935 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
936 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
937 rate = st->avg_frame_rate;
943 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
945 int tag = track->enc->codec_tag;
946 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
947 AVStream *st = track->st;
948 int rate = av_q2d(find_fps(s, st));
951 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
953 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
954 if (track->enc->width == 1280 && track->enc->height == 720) {
956 if (rate == 24) tag = MKTAG('x','d','v','4');
957 else if (rate == 25) tag = MKTAG('x','d','v','5');
958 else if (rate == 30) tag = MKTAG('x','d','v','1');
959 else if (rate == 50) tag = MKTAG('x','d','v','a');
960 else if (rate == 60) tag = MKTAG('x','d','v','9');
962 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
964 if (rate == 24) tag = MKTAG('x','d','v','6');
965 else if (rate == 25) tag = MKTAG('x','d','v','7');
966 else if (rate == 30) tag = MKTAG('x','d','v','8');
968 if (rate == 25) tag = MKTAG('x','d','v','3');
969 else if (rate == 30) tag = MKTAG('x','d','v','2');
971 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
973 if (rate == 24) tag = MKTAG('x','d','v','d');
974 else if (rate == 25) tag = MKTAG('x','d','v','e');
975 else if (rate == 30) tag = MKTAG('x','d','v','f');
977 if (rate == 25) tag = MKTAG('x','d','v','c');
978 else if (rate == 30) tag = MKTAG('x','d','v','b');
981 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
982 if (track->enc->width == 1280 && track->enc->height == 720) {
984 if (rate == 24) tag = MKTAG('x','d','5','4');
985 else if (rate == 25) tag = MKTAG('x','d','5','5');
986 else if (rate == 30) tag = MKTAG('x','d','5','1');
987 else if (rate == 50) tag = MKTAG('x','d','5','a');
988 else if (rate == 60) tag = MKTAG('x','d','5','9');
990 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
992 if (rate == 24) tag = MKTAG('x','d','5','d');
993 else if (rate == 25) tag = MKTAG('x','d','5','e');
994 else if (rate == 30) tag = MKTAG('x','d','5','f');
996 if (rate == 25) tag = MKTAG('x','d','5','c');
997 else if (rate == 30) tag = MKTAG('x','d','5','b');
1005 static const struct {
1006 enum AVPixelFormat pix_fmt;
1009 } mov_pix_fmt_tags[] = {
1010 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1011 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1012 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1013 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1014 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1015 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1016 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1017 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1018 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1019 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1020 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1021 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1022 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1023 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1024 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1027 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1029 int tag = track->enc->codec_tag;
1031 enum AVPixelFormat pix_fmt;
1033 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1034 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1035 tag = mov_pix_fmt_tags[i].tag;
1036 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1037 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1042 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1043 track->enc->bits_per_coded_sample);
1044 if (tag == MKTAG('r','a','w',' ') &&
1045 track->enc->pix_fmt != pix_fmt &&
1046 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1047 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1048 av_get_pix_fmt_name(track->enc->pix_fmt));
1052 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1054 int tag = track->enc->codec_tag;
1056 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1057 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1058 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1059 track->enc->codec_id == AV_CODEC_ID_H263 ||
1060 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1061 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1062 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1063 tag = mov_get_dv_codec_tag(s, track);
1064 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1065 tag = mov_get_rawvideo_codec_tag(s, track);
1066 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1067 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1068 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1069 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1070 if (!tag) { // if no mac fcc found, try with Microsoft tags
1071 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1073 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1074 "the file may be unplayable!\n");
1076 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1077 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1078 if (!tag) { // if no mac fcc found, try with Microsoft tags
1079 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1081 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1082 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1083 "the file may be unplayable!\n");
1086 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1087 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1093 static const AVCodecTag codec_3gp_tags[] = {
1094 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1095 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1096 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1097 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1098 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1099 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1100 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1101 { AV_CODEC_ID_NONE, 0 },
1104 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1105 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1106 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1107 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1108 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1109 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1110 { AV_CODEC_ID_NONE, 0 },
1113 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1117 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1118 tag = mp4_get_codec_tag(s, track);
1119 else if (track->mode == MODE_ISM) {
1120 tag = mp4_get_codec_tag(s, track);
1121 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1122 tag = MKTAG('w', 'm', 'a', ' ');
1123 } else if (track->mode == MODE_IPOD)
1124 tag = ipod_get_codec_tag(s, track);
1125 else if (track->mode & MODE_3GP)
1126 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1127 else if (track->mode == MODE_F4V)
1128 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1130 tag = mov_get_codec_tag(s, track);
1135 /** Write uuid atom.
1136 * Needed to make file play in iPods running newest firmware
1137 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1139 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1142 ffio_wfourcc(pb, "uuid");
1143 avio_wb32(pb, 0x6b6840f2);
1144 avio_wb32(pb, 0x5f244fc5);
1145 avio_wb32(pb, 0xba39a51b);
1146 avio_wb32(pb, 0xcf0323f3);
1151 static const uint16_t fiel_data[] = {
1152 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1155 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1157 unsigned mov_field_order = 0;
1158 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1159 mov_field_order = fiel_data[track->enc->field_order];
1163 ffio_wfourcc(pb, "fiel");
1164 avio_wb16(pb, mov_field_order);
1168 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1170 int64_t pos = avio_tell(pb);
1171 avio_wb32(pb, 0); /* size */
1172 avio_wl32(pb, track->tag); // store it byteswapped
1173 avio_wb32(pb, 0); /* Reserved */
1174 avio_wb16(pb, 0); /* Reserved */
1175 avio_wb16(pb, 1); /* Data-reference index */
1177 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1178 mov_write_esds_tag(pb, track);
1179 else if (track->enc->extradata_size)
1180 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1182 return update_size(pb, pos);
1185 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1188 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1189 track->enc->sample_aspect_ratio.den, INT_MAX);
1192 ffio_wfourcc(pb, "pasp");
1193 avio_wb32(pb, sar.num);
1194 avio_wb32(pb, sar.den);
1198 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1200 AVDictionaryEntry *encoder;
1201 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1202 || (track->enc->width == 1440 && track->enc->height == 1080)
1203 || (track->enc->width == 1920 && track->enc->height == 1080);
1205 if (track->mode == MODE_MOV &&
1206 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1207 av_strlcpy(compressor_name, encoder->value, 32);
1208 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1209 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1210 AVStream *st = track->st;
1211 int rate = av_q2d(find_fps(NULL, st));
1212 av_strlcatf(compressor_name, len, "XDCAM");
1213 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1214 av_strlcatf(compressor_name, len, " HD422");
1215 } else if(track->enc->width == 1440) {
1216 av_strlcatf(compressor_name, len, " HD");
1218 av_strlcatf(compressor_name, len, " EX");
1220 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1222 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1226 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1228 int64_t pos = avio_tell(pb);
1229 char compressor_name[32] = { 0 };
1231 avio_wb32(pb, 0); /* size */
1232 avio_wl32(pb, track->tag); // store it byteswapped
1233 avio_wb32(pb, 0); /* Reserved */
1234 avio_wb16(pb, 0); /* Reserved */
1235 avio_wb16(pb, 1); /* Data-reference index */
1237 avio_wb16(pb, 0); /* Codec stream version */
1238 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1239 if (track->mode == MODE_MOV) {
1240 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1241 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1242 avio_wb32(pb, 0); /* Temporal Quality */
1243 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1245 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1246 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1249 avio_wb32(pb, 0); /* Reserved */
1250 avio_wb32(pb, 0); /* Reserved */
1251 avio_wb32(pb, 0); /* Reserved */
1253 avio_wb16(pb, track->enc->width); /* Video width */
1254 avio_wb16(pb, track->height); /* Video height */
1255 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1256 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1257 avio_wb32(pb, 0); /* Data size (= 0) */
1258 avio_wb16(pb, 1); /* Frame count (= 1) */
1260 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1261 find_compressor(compressor_name, 32, track);
1262 avio_w8(pb, strlen(compressor_name));
1263 avio_write(pb, compressor_name, 31);
1265 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1266 avio_wb16(pb, track->enc->bits_per_coded_sample);
1268 avio_wb16(pb, 0x18); /* Reserved */
1269 avio_wb16(pb, 0xffff); /* Reserved */
1270 if (track->tag == MKTAG('m','p','4','v'))
1271 mov_write_esds_tag(pb, track);
1272 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1273 mov_write_d263_tag(pb);
1274 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1275 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1276 mov_write_extradata_tag(pb, track);
1278 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1279 mov_write_avid_tag(pb, track);
1280 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1281 mov_write_hvcc_tag(pb, track);
1282 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1283 mov_write_avcc_tag(pb, track);
1284 if (track->mode == MODE_IPOD)
1285 mov_write_uuid_tag_ipod(pb);
1286 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1287 mov_write_dvc1_tag(pb, track);
1288 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1289 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1290 /* Don't write any potential extradata here - the cropping
1291 * is signalled via the normal width/height fields. */
1292 } else if (track->vos_len > 0)
1293 mov_write_glbl_tag(pb, track);
1295 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1296 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1297 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1298 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1299 mov_write_fiel_tag(pb, track);
1301 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1302 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1303 mov_write_pasp_tag(pb, track);
1306 return update_size(pb, pos);
1309 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1311 int64_t pos = avio_tell(pb);
1312 avio_wb32(pb, 0); /* size */
1313 ffio_wfourcc(pb, "rtp ");
1314 avio_wb32(pb, 0); /* Reserved */
1315 avio_wb16(pb, 0); /* Reserved */
1316 avio_wb16(pb, 1); /* Data-reference index */
1318 avio_wb16(pb, 1); /* Hint track version */
1319 avio_wb16(pb, 1); /* Highest compatible version */
1320 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1322 avio_wb32(pb, 12); /* size */
1323 ffio_wfourcc(pb, "tims");
1324 avio_wb32(pb, track->timescale);
1326 return update_size(pb, pos);
1329 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1331 int64_t pos = avio_tell(pb);
1333 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1334 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1336 if (nb_frames > 255) {
1337 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1338 return AVERROR(EINVAL);
1341 avio_wb32(pb, 0); /* size */
1342 ffio_wfourcc(pb, "tmcd"); /* Data format */
1343 avio_wb32(pb, 0); /* Reserved */
1344 avio_wb32(pb, 1); /* Data reference index */
1345 avio_wb32(pb, 0); /* Flags */
1346 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1347 avio_wb32(pb, track->timescale); /* Timescale */
1348 avio_wb32(pb, frame_duration); /* Frame duration */
1349 avio_w8(pb, nb_frames); /* Number of frames */
1350 avio_wb24(pb, 0); /* Reserved */
1351 /* TODO: source reference string */
1354 avio_wb32(pb, 0); /* size */
1355 ffio_wfourcc(pb, "tmcd"); /* Data format */
1356 avio_wb32(pb, 0); /* Reserved */
1357 avio_wb32(pb, 1); /* Data reference index */
1358 if (track->enc->extradata_size)
1359 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1361 return update_size(pb, pos);
1364 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1366 int64_t pos = avio_tell(pb);
1367 avio_wb32(pb, 0); /* size */
1368 ffio_wfourcc(pb, "stsd");
1369 avio_wb32(pb, 0); /* version & flags */
1370 avio_wb32(pb, 1); /* entry count */
1371 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1372 mov_write_video_tag(pb, track);
1373 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1374 mov_write_audio_tag(pb, track);
1375 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1376 mov_write_subtitle_tag(pb, track);
1377 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1378 mov_write_rtp_tag(pb, track);
1379 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1380 mov_write_tmcd_tag(pb, track);
1381 return update_size(pb, pos);
1384 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1386 MOVStts *ctts_entries;
1387 uint32_t entries = 0;
1391 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1392 ctts_entries[0].count = 1;
1393 ctts_entries[0].duration = track->cluster[0].cts;
1394 for (i = 1; i < track->entry; i++) {
1395 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1396 ctts_entries[entries].count++; /* compress */
1399 ctts_entries[entries].duration = track->cluster[i].cts;
1400 ctts_entries[entries].count = 1;
1403 entries++; /* last one */
1404 atom_size = 16 + (entries * 8);
1405 avio_wb32(pb, atom_size); /* size */
1406 ffio_wfourcc(pb, "ctts");
1407 avio_wb32(pb, 0); /* version & flags */
1408 avio_wb32(pb, entries); /* entry count */
1409 for (i = 0; i < entries; i++) {
1410 avio_wb32(pb, ctts_entries[i].count);
1411 avio_wb32(pb, ctts_entries[i].duration);
1413 av_free(ctts_entries);
1417 /* Time to sample atom */
1418 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1420 MOVStts *stts_entries;
1421 uint32_t entries = -1;
1425 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1426 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1427 stts_entries[0].count = track->sample_count;
1428 stts_entries[0].duration = 1;
1431 stts_entries = track->entry ?
1432 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1434 for (i = 0; i < track->entry; i++) {
1435 int duration = get_cluster_duration(track, i);
1436 if (i && duration == stts_entries[entries].duration) {
1437 stts_entries[entries].count++; /* compress */
1440 stts_entries[entries].duration = duration;
1441 stts_entries[entries].count = 1;
1444 entries++; /* last one */
1446 atom_size = 16 + (entries * 8);
1447 avio_wb32(pb, atom_size); /* size */
1448 ffio_wfourcc(pb, "stts");
1449 avio_wb32(pb, 0); /* version & flags */
1450 avio_wb32(pb, entries); /* entry count */
1451 for (i = 0; i < entries; i++) {
1452 avio_wb32(pb, stts_entries[i].count);
1453 avio_wb32(pb, stts_entries[i].duration);
1455 av_free(stts_entries);
1459 static int mov_write_dref_tag(AVIOContext *pb)
1461 avio_wb32(pb, 28); /* size */
1462 ffio_wfourcc(pb, "dref");
1463 avio_wb32(pb, 0); /* version & flags */
1464 avio_wb32(pb, 1); /* entry count */
1466 avio_wb32(pb, 0xc); /* size */
1467 //FIXME add the alis and rsrc atom
1468 ffio_wfourcc(pb, "url ");
1469 avio_wb32(pb, 1); /* version & flags */
1474 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1476 int64_t pos = avio_tell(pb);
1477 avio_wb32(pb, 0); /* size */
1478 ffio_wfourcc(pb, "stbl");
1479 mov_write_stsd_tag(pb, track);
1480 mov_write_stts_tag(pb, track);
1481 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1482 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1483 track->has_keyframes && track->has_keyframes < track->entry)
1484 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1485 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1486 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1487 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1488 track->flags & MOV_TRACK_CTTS)
1489 mov_write_ctts_tag(pb, track);
1490 mov_write_stsc_tag(pb, track);
1491 mov_write_stsz_tag(pb, track);
1492 mov_write_stco_tag(pb, track);
1493 return update_size(pb, pos);
1496 static int mov_write_dinf_tag(AVIOContext *pb)
1498 int64_t pos = avio_tell(pb);
1499 avio_wb32(pb, 0); /* size */
1500 ffio_wfourcc(pb, "dinf");
1501 mov_write_dref_tag(pb);
1502 return update_size(pb, pos);
1505 static int mov_write_nmhd_tag(AVIOContext *pb)
1508 ffio_wfourcc(pb, "nmhd");
1513 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1515 int64_t pos = avio_tell(pb);
1516 const char *font = "Lucida Grande";
1517 avio_wb32(pb, 0); /* size */
1518 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1519 avio_wb32(pb, 0); /* version & flags */
1520 avio_wb16(pb, 0); /* text font */
1521 avio_wb16(pb, 0); /* text face */
1522 avio_wb16(pb, 12); /* text size */
1523 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1524 avio_wb16(pb, 0x0000); /* text color (red) */
1525 avio_wb16(pb, 0x0000); /* text color (green) */
1526 avio_wb16(pb, 0x0000); /* text color (blue) */
1527 avio_wb16(pb, 0xffff); /* background color (red) */
1528 avio_wb16(pb, 0xffff); /* background color (green) */
1529 avio_wb16(pb, 0xffff); /* background color (blue) */
1530 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1531 avio_write(pb, font, strlen(font)); /* font name */
1532 return update_size(pb, pos);
1535 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1537 int64_t pos = avio_tell(pb);
1538 avio_wb32(pb, 0); /* size */
1539 ffio_wfourcc(pb, "gmhd");
1540 avio_wb32(pb, 0x18); /* gmin size */
1541 ffio_wfourcc(pb, "gmin");/* generic media info */
1542 avio_wb32(pb, 0); /* version & flags */
1543 avio_wb16(pb, 0x40); /* graphics mode = */
1544 avio_wb16(pb, 0x8000); /* opColor (r?) */
1545 avio_wb16(pb, 0x8000); /* opColor (g?) */
1546 avio_wb16(pb, 0x8000); /* opColor (b?) */
1547 avio_wb16(pb, 0); /* balance */
1548 avio_wb16(pb, 0); /* reserved */
1551 * This special text atom is required for
1552 * Apple Quicktime chapters. The contents
1553 * don't appear to be documented, so the
1554 * bytes are copied verbatim.
1556 if (track->tag != MKTAG('c','6','0','8')) {
1557 avio_wb32(pb, 0x2C); /* size */
1558 ffio_wfourcc(pb, "text");
1559 avio_wb16(pb, 0x01);
1560 avio_wb32(pb, 0x00);
1561 avio_wb32(pb, 0x00);
1562 avio_wb32(pb, 0x00);
1563 avio_wb32(pb, 0x01);
1564 avio_wb32(pb, 0x00);
1565 avio_wb32(pb, 0x00);
1566 avio_wb32(pb, 0x00);
1567 avio_wb32(pb, 0x00004000);
1568 avio_wb16(pb, 0x0000);
1571 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1572 int64_t tmcd_pos = avio_tell(pb);
1573 avio_wb32(pb, 0); /* size */
1574 ffio_wfourcc(pb, "tmcd");
1575 mov_write_tcmi_tag(pb, track);
1576 update_size(pb, tmcd_pos);
1578 return update_size(pb, pos);
1581 static int mov_write_smhd_tag(AVIOContext *pb)
1583 avio_wb32(pb, 16); /* size */
1584 ffio_wfourcc(pb, "smhd");
1585 avio_wb32(pb, 0); /* version & flags */
1586 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1587 avio_wb16(pb, 0); /* reserved */
1591 static int mov_write_vmhd_tag(AVIOContext *pb)
1593 avio_wb32(pb, 0x14); /* size (always 0x14) */
1594 ffio_wfourcc(pb, "vmhd");
1595 avio_wb32(pb, 0x01); /* version & flags */
1596 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1600 static int is_clcp_track(MOVTrack *track)
1602 return track->tag == MKTAG('c','7','0','8') ||
1603 track->tag == MKTAG('c','6','0','8');
1606 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1608 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1609 int64_t pos = avio_tell(pb);
1613 descr = "DataHandler";
1616 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1617 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1619 descr = "VideoHandler";
1620 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1622 descr = "SoundHandler";
1623 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1624 if (is_clcp_track(track)) {
1626 descr = "ClosedCaptionHandler";
1628 if (track->tag == MKTAG('t','x','3','g')) {
1630 } else if (track->tag == MKTAG('m','p','4','s')) {
1635 descr = "SubtitleHandler";
1637 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1639 descr = "HintHandler";
1640 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1642 descr = "TimeCodeHandler";
1645 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1646 track->enc->codec_tag);
1648 av_log(track->enc, AV_LOG_WARNING,
1649 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1650 tag_buf, track->enc->codec_tag);
1654 avio_wb32(pb, 0); /* size */
1655 ffio_wfourcc(pb, "hdlr");
1656 avio_wb32(pb, 0); /* Version & flags */
1657 avio_write(pb, hdlr, 4); /* handler */
1658 ffio_wfourcc(pb, hdlr_type); /* handler type */
1659 avio_wb32(pb, 0); /* reserved */
1660 avio_wb32(pb, 0); /* reserved */
1661 avio_wb32(pb, 0); /* reserved */
1662 if (!track || track->mode == MODE_MOV)
1663 avio_w8(pb, strlen(descr)); /* pascal string */
1664 avio_write(pb, descr, strlen(descr)); /* handler description */
1665 if (track && track->mode != MODE_MOV)
1666 avio_w8(pb, 0); /* c string */
1667 return update_size(pb, pos);
1670 static int mov_write_hmhd_tag(AVIOContext *pb)
1672 /* This atom must be present, but leaving the values at zero
1673 * seems harmless. */
1674 avio_wb32(pb, 28); /* size */
1675 ffio_wfourcc(pb, "hmhd");
1676 avio_wb32(pb, 0); /* version, flags */
1677 avio_wb16(pb, 0); /* maxPDUsize */
1678 avio_wb16(pb, 0); /* avgPDUsize */
1679 avio_wb32(pb, 0); /* maxbitrate */
1680 avio_wb32(pb, 0); /* avgbitrate */
1681 avio_wb32(pb, 0); /* reserved */
1685 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1687 int64_t pos = avio_tell(pb);
1688 avio_wb32(pb, 0); /* size */
1689 ffio_wfourcc(pb, "minf");
1690 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1691 mov_write_vmhd_tag(pb);
1692 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1693 mov_write_smhd_tag(pb);
1694 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1695 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1696 mov_write_gmhd_tag(pb, track);
1698 mov_write_nmhd_tag(pb);
1700 } else if (track->tag == MKTAG('r','t','p',' ')) {
1701 mov_write_hmhd_tag(pb);
1702 } else if (track->tag == MKTAG('t','m','c','d')) {
1703 mov_write_gmhd_tag(pb, track);
1705 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1706 mov_write_hdlr_tag(pb, NULL);
1707 mov_write_dinf_tag(pb);
1708 mov_write_stbl_tag(pb, track);
1709 return update_size(pb, pos);
1712 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1714 int version = track->track_duration < INT32_MAX ? 0 : 1;
1716 if (track->mode == MODE_ISM)
1719 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1720 ffio_wfourcc(pb, "mdhd");
1721 avio_w8(pb, version);
1722 avio_wb24(pb, 0); /* flags */
1724 avio_wb64(pb, track->time);
1725 avio_wb64(pb, track->time);
1727 avio_wb32(pb, track->time); /* creation time */
1728 avio_wb32(pb, track->time); /* modification time */
1730 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1732 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1734 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1735 avio_wb16(pb, track->language); /* language */
1736 avio_wb16(pb, 0); /* reserved (quality) */
1738 if (version != 0 && track->mode == MODE_MOV) {
1739 av_log(NULL, AV_LOG_ERROR,
1740 "FATAL error, file duration too long for timebase, this file will not be\n"
1741 "playable with quicktime. Choose a different timebase or a different\n"
1742 "container format\n");
1748 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1750 int64_t pos = avio_tell(pb);
1751 avio_wb32(pb, 0); /* size */
1752 ffio_wfourcc(pb, "mdia");
1753 mov_write_mdhd_tag(pb, track);
1754 mov_write_hdlr_tag(pb, track);
1755 mov_write_minf_tag(pb, track);
1756 return update_size(pb, pos);
1759 /* transformation matrix
1763 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1764 int16_t d, int16_t tx, int16_t ty)
1766 avio_wb32(pb, a << 16); /* 16.16 format */
1767 avio_wb32(pb, b << 16); /* 16.16 format */
1768 avio_wb32(pb, 0); /* u in 2.30 format */
1769 avio_wb32(pb, c << 16); /* 16.16 format */
1770 avio_wb32(pb, d << 16); /* 16.16 format */
1771 avio_wb32(pb, 0); /* v in 2.30 format */
1772 avio_wb32(pb, tx << 16); /* 16.16 format */
1773 avio_wb32(pb, ty << 16); /* 16.16 format */
1774 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1777 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1778 MOVTrack *track, AVStream *st)
1780 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1781 track->timescale, AV_ROUND_UP);
1782 int version = duration < INT32_MAX ? 0 : 1;
1783 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1789 if (mov->per_stream_grouping)
1792 group = st->codec->codec_type;
1795 if (track->flags & MOV_TRACK_ENABLED)
1796 flags |= MOV_TKHD_FLAG_ENABLED;
1798 if (track->mode == MODE_ISM)
1801 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1802 ffio_wfourcc(pb, "tkhd");
1803 avio_w8(pb, version);
1804 avio_wb24(pb, flags);
1806 avio_wb64(pb, track->time);
1807 avio_wb64(pb, track->time);
1809 avio_wb32(pb, track->time); /* creation time */
1810 avio_wb32(pb, track->time); /* modification time */
1812 avio_wb32(pb, track->track_id); /* track-id */
1813 avio_wb32(pb, 0); /* reserved */
1815 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1817 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1819 avio_wb32(pb, 0); /* reserved */
1820 avio_wb32(pb, 0); /* reserved */
1821 avio_wb16(pb, 0); /* layer */
1822 avio_wb16(pb, group); /* alternate group) */
1823 /* Volume, only for audio */
1824 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1825 avio_wb16(pb, 0x0100);
1828 avio_wb16(pb, 0); /* reserved */
1830 /* Matrix structure */
1831 if (st && st->metadata) {
1832 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1833 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1835 if (rotation == 90) {
1836 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1837 } else if (rotation == 180) {
1838 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1839 } else if (rotation == 270) {
1840 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1842 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1844 /* Track width and height, for visual only */
1845 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1846 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1847 if (track->mode == MODE_MOV) {
1848 avio_wb32(pb, track->enc->width << 16);
1849 avio_wb32(pb, track->height << 16);
1851 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1852 if (!sample_aspect_ratio || track->height != track->enc->height)
1853 sample_aspect_ratio = 1;
1854 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1855 avio_wb32(pb, track->height * 0x10000);
1864 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1866 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1867 track->enc->sample_aspect_ratio.den);
1869 int64_t pos = avio_tell(pb);
1871 avio_wb32(pb, 0); /* size */
1872 ffio_wfourcc(pb, "tapt");
1875 ffio_wfourcc(pb, "clef");
1877 avio_wb32(pb, width << 16);
1878 avio_wb32(pb, track->enc->height << 16);
1881 ffio_wfourcc(pb, "prof");
1883 avio_wb32(pb, width << 16);
1884 avio_wb32(pb, track->enc->height << 16);
1887 ffio_wfourcc(pb, "enof");
1889 avio_wb32(pb, track->enc->width << 16);
1890 avio_wb32(pb, track->enc->height << 16);
1892 return update_size(pb, pos);
1895 // This box seems important for the psp playback ... without it the movie seems to hang
1896 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1898 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1899 track->timescale, AV_ROUND_UP);
1900 int version = duration < INT32_MAX ? 0 : 1;
1901 int entry_size, entry_count, size;
1902 int64_t delay, start_ct = track->cluster[0].cts;
1903 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1904 track->timescale, AV_ROUND_DOWN);
1905 version |= delay < INT32_MAX ? 0 : 1;
1907 entry_size = (version == 1) ? 20 : 12;
1908 entry_count = 1 + (delay > 0);
1909 size = 24 + entry_count * entry_size;
1911 /* write the atom data */
1912 avio_wb32(pb, size);
1913 ffio_wfourcc(pb, "edts");
1914 avio_wb32(pb, size - 8);
1915 ffio_wfourcc(pb, "elst");
1916 avio_w8(pb, version);
1917 avio_wb24(pb, 0); /* flags */
1919 avio_wb32(pb, entry_count);
1920 if (delay > 0) { /* add an empty edit to delay presentation */
1922 avio_wb64(pb, delay);
1925 avio_wb32(pb, delay);
1928 avio_wb32(pb, 0x00010000);
1930 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1931 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1937 avio_wb64(pb, duration);
1938 avio_wb64(pb, start_ct);
1940 avio_wb32(pb, duration);
1941 avio_wb32(pb, start_ct);
1943 avio_wb32(pb, 0x00010000);
1947 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1949 avio_wb32(pb, 20); // size
1950 ffio_wfourcc(pb, "tref");
1951 avio_wb32(pb, 12); // size (subatom)
1952 avio_wl32(pb, track->tref_tag);
1953 avio_wb32(pb, track->tref_id);
1957 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1958 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1960 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1961 ffio_wfourcc(pb, "uuid");
1962 ffio_wfourcc(pb, "USMT");
1963 avio_wb32(pb, 0x21d24fce);
1964 avio_wb32(pb, 0xbb88695c);
1965 avio_wb32(pb, 0xfac9c740);
1966 avio_wb32(pb, 0x1c); // another size here!
1967 ffio_wfourcc(pb, "MTDT");
1968 avio_wb32(pb, 0x00010012);
1969 avio_wb32(pb, 0x0a);
1970 avio_wb32(pb, 0x55c40000);
1976 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1978 AVFormatContext *ctx = track->rtp_ctx;
1979 char buf[1000] = "";
1982 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1983 NULL, NULL, 0, 0, ctx);
1984 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1987 avio_wb32(pb, len + 24);
1988 ffio_wfourcc(pb, "udta");
1989 avio_wb32(pb, len + 16);
1990 ffio_wfourcc(pb, "hnti");
1991 avio_wb32(pb, len + 8);
1992 ffio_wfourcc(pb, "sdp ");
1993 avio_write(pb, buf, len);
1997 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1998 MOVTrack *track, AVStream *st)
2000 int64_t pos = avio_tell(pb);
2001 avio_wb32(pb, 0); /* size */
2002 ffio_wfourcc(pb, "trak");
2003 mov_write_tkhd_tag(pb, mov, track, st);
2004 if (supports_edts(mov))
2005 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
2006 if (track->tref_tag)
2007 mov_write_tref_tag(pb, track);
2008 mov_write_mdia_tag(pb, track);
2009 if (track->mode == MODE_PSP)
2010 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2011 if (track->tag == MKTAG('r','t','p',' '))
2012 mov_write_udta_sdp(pb, track);
2013 if (track->mode == MODE_MOV) {
2014 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2015 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2016 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2017 mov_write_tapt_tag(pb, track);
2020 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2021 mov_write_tapt_tag(pb, track);
2024 return update_size(pb, pos);
2027 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2029 int i, has_audio = 0, has_video = 0;
2030 int64_t pos = avio_tell(pb);
2031 int audio_profile = mov->iods_audio_profile;
2032 int video_profile = mov->iods_video_profile;
2033 for (i = 0; i < mov->nb_streams; i++) {
2034 if (mov->tracks[i].entry > 0) {
2035 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2036 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2039 if (audio_profile < 0)
2040 audio_profile = 0xFF - has_audio;
2041 if (video_profile < 0)
2042 video_profile = 0xFF - has_video;
2043 avio_wb32(pb, 0x0); /* size */
2044 ffio_wfourcc(pb, "iods");
2045 avio_wb32(pb, 0); /* version & flags */
2046 put_descr(pb, 0x10, 7);
2047 avio_wb16(pb, 0x004f);
2050 avio_w8(pb, audio_profile);
2051 avio_w8(pb, video_profile);
2053 return update_size(pb, pos);
2056 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2058 avio_wb32(pb, 0x20); /* size */
2059 ffio_wfourcc(pb, "trex");
2060 avio_wb32(pb, 0); /* version & flags */
2061 avio_wb32(pb, track->track_id); /* track ID */
2062 avio_wb32(pb, 1); /* default sample description index */
2063 avio_wb32(pb, 0); /* default sample duration */
2064 avio_wb32(pb, 0); /* default sample size */
2065 avio_wb32(pb, 0); /* default sample flags */
2069 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2071 int64_t pos = avio_tell(pb);
2073 avio_wb32(pb, 0x0); /* size */
2074 ffio_wfourcc(pb, "mvex");
2075 for (i = 0; i < mov->nb_streams; i++)
2076 mov_write_trex_tag(pb, &mov->tracks[i]);
2077 return update_size(pb, pos);
2080 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2082 int max_track_id = 1, i;
2083 int64_t max_track_len_temp, max_track_len = 0;
2086 for (i = 0; i < mov->nb_streams; i++) {
2087 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2088 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2090 mov->tracks[i].timescale,
2092 if (max_track_len < max_track_len_temp)
2093 max_track_len = max_track_len_temp;
2094 if (max_track_id < mov->tracks[i].track_id)
2095 max_track_id = mov->tracks[i].track_id;
2099 version = max_track_len < UINT32_MAX ? 0 : 1;
2100 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2101 ffio_wfourcc(pb, "mvhd");
2102 avio_w8(pb, version);
2103 avio_wb24(pb, 0); /* flags */
2105 avio_wb64(pb, mov->time);
2106 avio_wb64(pb, mov->time);
2108 avio_wb32(pb, mov->time); /* creation time */
2109 avio_wb32(pb, mov->time); /* modification time */
2111 avio_wb32(pb, MOV_TIMESCALE);
2112 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2114 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2115 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2116 avio_wb16(pb, 0); /* reserved */
2117 avio_wb32(pb, 0); /* reserved */
2118 avio_wb32(pb, 0); /* reserved */
2120 /* Matrix structure */
2121 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2123 avio_wb32(pb, 0); /* reserved (preview time) */
2124 avio_wb32(pb, 0); /* reserved (preview duration) */
2125 avio_wb32(pb, 0); /* reserved (poster time) */
2126 avio_wb32(pb, 0); /* reserved (selection time) */
2127 avio_wb32(pb, 0); /* reserved (selection duration) */
2128 avio_wb32(pb, 0); /* reserved (current time) */
2129 avio_wb32(pb, max_track_id + 1); /* Next track id */
2133 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2136 avio_wb32(pb, 33); /* size */
2137 ffio_wfourcc(pb, "hdlr");
2140 ffio_wfourcc(pb, "mdir");
2141 ffio_wfourcc(pb, "appl");
2148 /* helper function to write a data tag with the specified string as data */
2149 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2152 int size = 16 + strlen(data);
2153 avio_wb32(pb, size); /* size */
2154 ffio_wfourcc(pb, "data");
2157 avio_write(pb, data, strlen(data));
2161 lang = ff_mov_iso639_to_lang("und", 1);
2162 avio_wb16(pb, strlen(data)); /* string length */
2163 avio_wb16(pb, lang);
2164 avio_write(pb, data, strlen(data));
2165 return strlen(data) + 4;
2169 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2170 const char *value, int lang, int long_style)
2173 if (value && value[0]) {
2174 int64_t pos = avio_tell(pb);
2175 avio_wb32(pb, 0); /* size */
2176 ffio_wfourcc(pb, name);
2177 mov_write_string_data_tag(pb, value, lang, long_style);
2178 size = update_size(pb, pos);
2183 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2184 const char *name, const char *tag,
2187 int l, lang = 0, len, len2;
2188 AVDictionaryEntry *t, *t2 = NULL;
2191 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2194 len = strlen(t->key);
2195 snprintf(tag2, sizeof(tag2), "%s-", tag);
2196 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2197 len2 = strlen(t2->key);
2198 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2199 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2204 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2207 /* iTunes bpm number */
2208 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2210 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2211 int size = 0, tmpo = t ? atoi(t->value) : 0;
2214 avio_wb32(pb, size);
2215 ffio_wfourcc(pb, "tmpo");
2216 avio_wb32(pb, size-8); /* size */
2217 ffio_wfourcc(pb, "data");
2218 avio_wb32(pb, 0x15); //type specifier
2220 avio_wb16(pb, tmpo); // data
2225 /* iTunes track or disc number */
2226 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2227 AVFormatContext *s, int disc)
2229 AVDictionaryEntry *t = av_dict_get(s->metadata,
2230 disc ? "disc" : "track",
2232 int size = 0, track = t ? atoi(t->value) : 0;
2235 char *slash = strchr(t->value, '/');
2237 tracks = atoi(slash + 1);
2238 avio_wb32(pb, 32); /* size */
2239 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2240 avio_wb32(pb, 24); /* size */
2241 ffio_wfourcc(pb, "data");
2242 avio_wb32(pb, 0); // 8 bytes empty
2244 avio_wb16(pb, 0); // empty
2245 avio_wb16(pb, track); // track / disc number
2246 avio_wb16(pb, tracks); // total track / disc number
2247 avio_wb16(pb, 0); // empty
2253 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2254 const char *name, const char *tag,
2257 AVDictionaryEntry *t = NULL;
2259 int size = 24 + len;
2261 if (len != 1 && len != 4)
2264 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2266 num = atoi(t->value);
2268 avio_wb32(pb, size);
2269 ffio_wfourcc(pb, name);
2270 avio_wb32(pb, size - 8);
2271 ffio_wfourcc(pb, "data");
2272 avio_wb32(pb, 0x15);
2274 if (len==4) avio_wb32(pb, num);
2275 else avio_w8 (pb, num);
2280 /* iTunes meta data list */
2281 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2284 int64_t pos = avio_tell(pb);
2285 avio_wb32(pb, 0); /* size */
2286 ffio_wfourcc(pb, "ilst");
2287 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2288 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2289 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2290 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2291 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2292 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2294 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2295 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2296 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2297 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2298 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2299 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2300 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2301 mov_write_string_metadata(s, pb, "desc", "description",1);
2302 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2303 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2304 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2305 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2306 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2307 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2308 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2309 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2310 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2311 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2312 mov_write_trkn_tag(pb, mov, s, 0); // track number
2313 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2314 mov_write_tmpo_tag(pb, s);
2315 return update_size(pb, pos);
2318 /* iTunes meta data tag */
2319 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2323 int64_t pos = avio_tell(pb);
2324 avio_wb32(pb, 0); /* size */
2325 ffio_wfourcc(pb, "meta");
2327 mov_write_itunes_hdlr_tag(pb, mov, s);
2328 mov_write_ilst_tag(pb, mov, s);
2329 size = update_size(pb, pos);
2333 static int utf8len(const uint8_t *b)
2338 GET_UTF8(val, *b++, return -1;)
2344 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2348 GET_UTF8(val, *b++, return -1;)
2351 avio_wb16(pb, 0x00);
2355 static uint16_t language_code(const char *str)
2357 return (((str[0] - 0x60) & 0x1F) << 10) +
2358 (((str[1] - 0x60) & 0x1F) << 5) +
2359 (( str[2] - 0x60) & 0x1F);
2362 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2363 const char *tag, const char *str)
2365 int64_t pos = avio_tell(pb);
2366 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2367 if (!t || !utf8len(t->value))
2369 avio_wb32(pb, 0); /* size */
2370 ffio_wfourcc(pb, tag); /* type */
2371 avio_wb32(pb, 0); /* version + flags */
2372 if (!strcmp(tag, "yrrc"))
2373 avio_wb16(pb, atoi(t->value));
2375 avio_wb16(pb, language_code("eng")); /* language */
2376 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2377 if (!strcmp(tag, "albm") &&
2378 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2379 avio_w8(pb, atoi(t->value));
2381 return update_size(pb, pos);
2384 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2386 int64_t pos = avio_tell(pb);
2387 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2389 avio_wb32(pb, 0); // size
2390 ffio_wfourcc(pb, "chpl");
2391 avio_wb32(pb, 0x01000000); // version + flags
2392 avio_wb32(pb, 0); // unknown
2393 avio_w8(pb, nb_chapters);
2395 for (i = 0; i < nb_chapters; i++) {
2396 AVChapter *c = s->chapters[i];
2397 AVDictionaryEntry *t;
2398 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2400 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2401 int len = FFMIN(strlen(t->value), 255);
2403 avio_write(pb, t->value, len);
2407 return update_size(pb, pos);
2410 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2413 AVIOContext *pb_buf;
2417 ret = avio_open_dyn_buf(&pb_buf);
2421 if (mov->mode & MODE_3GP) {
2422 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2423 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2424 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2425 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2426 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2427 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2428 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2429 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2430 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2431 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2432 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2433 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2434 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2435 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2436 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2437 // currently ignored by mov.c
2438 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2439 // add support for libquicktime, this atom is also actually read by mov.c
2440 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2441 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2442 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2444 /* iTunes meta data */
2445 mov_write_meta_tag(pb_buf, mov, s);
2449 mov_write_chpl_tag(pb_buf, s);
2451 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2452 avio_wb32(pb, size + 8);
2453 ffio_wfourcc(pb, "udta");
2454 avio_write(pb, buf, size);
2461 static void mov_write_psp_udta_tag(AVIOContext *pb,
2462 const char *str, const char *lang, int type)
2464 int len = utf8len(str) + 1;
2467 avio_wb16(pb, len * 2 + 10); /* size */
2468 avio_wb32(pb, type); /* type */
2469 avio_wb16(pb, language_code(lang)); /* language */
2470 avio_wb16(pb, 0x01); /* ? */
2471 ascii_to_wc(pb, str);
2474 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2476 MOVMuxContext *mov = s->priv_data;
2477 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2481 pos = avio_tell(pb);
2482 avio_wb32(pb, 0); /* size placeholder*/
2483 ffio_wfourcc(pb, "uuid");
2484 ffio_wfourcc(pb, "USMT");
2485 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2486 avio_wb32(pb, 0xbb88695c);
2487 avio_wb32(pb, 0xfac9c740);
2489 pos2 = avio_tell(pb);
2490 avio_wb32(pb, 0); /* size placeholder*/
2491 ffio_wfourcc(pb, "MTDT");
2495 avio_wb16(pb, 0x0C); /* size */
2496 avio_wb32(pb, 0x0B); /* type */
2497 avio_wb16(pb, language_code("und")); /* language */
2498 avio_wb16(pb, 0x0); /* ? */
2499 avio_wb16(pb, 0x021C); /* data */
2502 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2503 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2504 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2506 update_size(pb, pos2);
2507 return update_size(pb, pos);
2513 static void build_chunks(MOVTrack *trk)
2516 MOVIentry *chunk = &trk->cluster[0];
2517 uint64_t chunkSize = chunk->size;
2518 chunk->chunkNum = 1;
2519 if (trk->chunkCount)
2521 trk->chunkCount = 1;
2522 for (i = 1; i<trk->entry; i++){
2523 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2524 chunkSize + trk->cluster[i].size < (1<<20)){
2525 chunkSize += trk->cluster[i].size;
2526 chunk->samples_in_chunk += trk->cluster[i].entries;
2528 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2529 chunk=&trk->cluster[i];
2530 chunkSize = chunk->size;
2536 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2540 int64_t pos = avio_tell(pb);
2541 avio_wb32(pb, 0); /* size placeholder*/
2542 ffio_wfourcc(pb, "moov");
2544 for (i = 0; i < mov->nb_streams; i++) {
2545 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2548 mov->tracks[i].time = mov->time;
2549 mov->tracks[i].track_id = i + 1;
2551 if (mov->tracks[i].entry)
2552 build_chunks(&mov->tracks[i]);
2555 if (mov->chapter_track)
2556 for (i = 0; i < s->nb_streams; i++) {
2557 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2558 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2560 for (i = 0; i < mov->nb_streams; i++) {
2561 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2562 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2563 mov->tracks[i].tref_id =
2564 mov->tracks[mov->tracks[i].src_track].track_id;
2567 for (i = 0; i < mov->nb_streams; i++) {
2568 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2569 int src_trk = mov->tracks[i].src_track;
2570 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2571 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2572 //src_trk may have a different timescale than the tmcd track
2573 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2574 mov->tracks[i].timescale,
2575 mov->tracks[src_trk].timescale);
2579 mov_write_mvhd_tag(pb, mov);
2580 if (mov->mode != MODE_MOV && !mov->iods_skip)
2581 mov_write_iods_tag(pb, mov);
2582 for (i = 0; i < mov->nb_streams; i++) {
2583 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2584 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2587 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2588 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2590 if (mov->mode == MODE_PSP)
2591 mov_write_uuidusmt_tag(pb, s);
2593 mov_write_udta_tag(pb, mov, s);
2595 return update_size(pb, pos);
2598 static void param_write_int(AVIOContext *pb, const char *name, int value)
2600 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2603 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2605 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2608 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2611 len = FFMIN(sizeof(buf) / 2 - 1, len);
2612 ff_data_to_hex(buf, value, len, 0);
2613 buf[2 * len] = '\0';
2614 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2617 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2619 int64_t pos = avio_tell(pb);
2621 static const uint8_t uuid[] = {
2622 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2623 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2627 ffio_wfourcc(pb, "uuid");
2628 avio_write(pb, uuid, sizeof(uuid));
2631 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2632 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2633 avio_printf(pb, "<head>\n");
2635 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2637 avio_printf(pb, "</head>\n");
2638 avio_printf(pb, "<body>\n");
2639 avio_printf(pb, "<switch>\n");
2640 for (i = 0; i < mov->nb_streams; i++) {
2641 MOVTrack *track = &mov->tracks[i];
2643 /* track->track_id is initialized in write_moov, and thus isn't known
2645 int track_id = i + 1;
2647 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2649 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2654 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2655 track->enc->bit_rate);
2656 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2657 param_write_int(pb, "trackID", track_id);
2658 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2659 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2661 int size = track->enc->extradata_size;
2662 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2664 param_write_hex(pb, "CodecPrivateData",
2665 ptr ? ptr : track->enc->extradata,
2669 param_write_string(pb, "FourCC", "H264");
2670 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2671 param_write_string(pb, "FourCC", "WVC1");
2672 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2673 track->enc->extradata_size);
2675 param_write_int(pb, "MaxWidth", track->enc->width);
2676 param_write_int(pb, "MaxHeight", track->enc->height);
2677 param_write_int(pb, "DisplayWidth", track->enc->width);
2678 param_write_int(pb, "DisplayHeight", track->enc->height);
2680 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2681 param_write_string(pb, "FourCC", "AACL");
2682 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2683 param_write_string(pb, "FourCC", "WMAP");
2685 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2686 track->enc->extradata_size);
2687 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2688 track->enc->codec_id));
2689 param_write_int(pb, "Channels", track->enc->channels);
2690 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2691 param_write_int(pb, "BitsPerSample", 16);
2692 param_write_int(pb, "PacketSize", track->enc->block_align ?
2693 track->enc->block_align : 4);
2695 avio_printf(pb, "</%s>\n", type);
2697 avio_printf(pb, "</switch>\n");
2698 avio_printf(pb, "</body>\n");
2699 avio_printf(pb, "</smil>\n");
2701 return update_size(pb, pos);
2704 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2707 ffio_wfourcc(pb, "mfhd");
2709 avio_wb32(pb, mov->fragments);
2713 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2714 MOVTrack *track, int64_t moof_offset)
2716 int64_t pos = avio_tell(pb);
2717 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2718 MOV_TFHD_BASE_DATA_OFFSET;
2719 if (!track->entry) {
2720 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2722 flags |= MOV_TFHD_DEFAULT_FLAGS;
2724 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2725 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2727 /* Don't set a default sample size, the silverlight player refuses
2728 * to play files with that set. Don't set a default sample duration,
2729 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2730 * file format says it MUST NOT be set. */
2731 if (track->mode == MODE_ISM)
2732 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2733 MOV_TFHD_BASE_DATA_OFFSET);
2735 avio_wb32(pb, 0); /* size placeholder */
2736 ffio_wfourcc(pb, "tfhd");
2737 avio_w8(pb, 0); /* version */
2738 avio_wb24(pb, flags);
2740 avio_wb32(pb, track->track_id); /* track-id */
2741 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2742 avio_wb64(pb, moof_offset);
2743 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2744 track->default_duration = get_cluster_duration(track, 0);
2745 avio_wb32(pb, track->default_duration);
2747 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2748 track->default_size = track->entry ? track->cluster[0].size : 1;
2749 avio_wb32(pb, track->default_size);
2751 track->default_size = -1;
2753 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2754 track->default_sample_flags =
2755 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2756 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2757 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2758 avio_wb32(pb, track->default_sample_flags);
2761 return update_size(pb, pos);
2764 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2766 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2767 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2770 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2771 MOVTrack *track, int moof_size)
2773 int64_t pos = avio_tell(pb);
2774 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2777 for (i = 0; i < track->entry; i++) {
2778 if (get_cluster_duration(track, i) != track->default_duration)
2779 flags |= MOV_TRUN_SAMPLE_DURATION;
2780 if (track->cluster[i].size != track->default_size)
2781 flags |= MOV_TRUN_SAMPLE_SIZE;
2782 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2783 flags |= MOV_TRUN_SAMPLE_FLAGS;
2785 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2786 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2787 if (track->flags & MOV_TRACK_CTTS)
2788 flags |= MOV_TRUN_SAMPLE_CTS;
2790 avio_wb32(pb, 0); /* size placeholder */
2791 ffio_wfourcc(pb, "trun");
2792 avio_w8(pb, 0); /* version */
2793 avio_wb24(pb, flags);
2795 avio_wb32(pb, track->entry); /* sample count */
2796 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2797 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2798 track->track_id != 1)
2799 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2801 avio_wb32(pb, moof_size + 8 + track->data_offset +
2802 track->cluster[0].pos); /* data offset */
2803 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2804 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2806 for (i = 0; i < track->entry; i++) {
2807 if (flags & MOV_TRUN_SAMPLE_DURATION)
2808 avio_wb32(pb, get_cluster_duration(track, i));
2809 if (flags & MOV_TRUN_SAMPLE_SIZE)
2810 avio_wb32(pb, track->cluster[i].size);
2811 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2812 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2813 if (flags & MOV_TRUN_SAMPLE_CTS)
2814 avio_wb32(pb, track->cluster[i].cts);
2817 return update_size(pb, pos);
2820 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2822 int64_t pos = avio_tell(pb);
2823 static const uint8_t uuid[] = {
2824 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2825 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2828 avio_wb32(pb, 0); /* size placeholder */
2829 ffio_wfourcc(pb, "uuid");
2830 avio_write(pb, uuid, sizeof(uuid));
2833 avio_wb64(pb, track->frag_start);
2834 avio_wb64(pb, track->start_dts + track->track_duration -
2835 track->cluster[0].dts);
2837 return update_size(pb, pos);
2840 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2841 MOVTrack *track, int entry)
2843 int n = track->nb_frag_info - 1 - entry, i;
2844 int size = 8 + 16 + 4 + 1 + 16*n;
2845 static const uint8_t uuid[] = {
2846 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2847 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2853 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2854 avio_wb32(pb, size);
2855 ffio_wfourcc(pb, "uuid");
2856 avio_write(pb, uuid, sizeof(uuid));
2860 for (i = 0; i < n; i++) {
2861 int index = entry + 1 + i;
2862 avio_wb64(pb, track->frag_info[index].time);
2863 avio_wb64(pb, track->frag_info[index].duration);
2865 if (n < mov->ism_lookahead) {
2866 int free_size = 16 * (mov->ism_lookahead - n);
2867 avio_wb32(pb, free_size);
2868 ffio_wfourcc(pb, "free");
2869 ffio_fill(pb, 0, free_size - 8);
2875 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2878 int64_t pos = avio_tell(pb);
2880 for (i = 0; i < mov->ism_lookahead; i++) {
2881 /* Update the tfrf tag for the last ism_lookahead fragments,
2882 * nb_frag_info - 1 is the next fragment to be written. */
2883 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2885 avio_seek(pb, pos, SEEK_SET);
2889 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2890 MOVTrack *track, int64_t moof_offset,
2893 int64_t pos = avio_tell(pb);
2894 avio_wb32(pb, 0); /* size placeholder */
2895 ffio_wfourcc(pb, "traf");
2897 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2898 mov_write_trun_tag(pb, mov, track, moof_size);
2899 if (mov->mode == MODE_ISM) {
2900 mov_write_tfxd_tag(pb, track);
2902 if (mov->ism_lookahead) {
2903 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2905 track->tfrf_offset = avio_tell(pb);
2906 avio_wb32(pb, 8 + size);
2907 ffio_wfourcc(pb, "free");
2908 for (i = 0; i < size; i++)
2913 return update_size(pb, pos);
2916 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2917 int tracks, int moof_size)
2919 int64_t pos = avio_tell(pb);
2922 avio_wb32(pb, 0); /* size placeholder */
2923 ffio_wfourcc(pb, "moof");
2925 mov_write_mfhd_tag(pb, mov);
2926 for (i = 0; i < mov->nb_streams; i++) {
2927 MOVTrack *track = &mov->tracks[i];
2928 if (tracks >= 0 && i != tracks)
2932 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2935 return update_size(pb, pos);
2938 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2940 AVIOContext *avio_buf;
2943 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2945 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2946 moof_size = ffio_close_null_buf(avio_buf);
2947 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2950 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2952 int64_t pos = avio_tell(pb);
2955 avio_wb32(pb, 0); /* size placeholder */
2956 ffio_wfourcc(pb, "tfra");
2957 avio_w8(pb, 1); /* version */
2960 avio_wb32(pb, track->track_id);
2961 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2962 avio_wb32(pb, track->nb_frag_info);
2963 for (i = 0; i < track->nb_frag_info; i++) {
2964 avio_wb64(pb, track->frag_info[i].time);
2965 avio_wb64(pb, track->frag_info[i].offset);
2966 avio_w8(pb, 1); /* traf number */
2967 avio_w8(pb, 1); /* trun number */
2968 avio_w8(pb, 1); /* sample number */
2971 return update_size(pb, pos);
2974 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2976 int64_t pos = avio_tell(pb);
2979 avio_wb32(pb, 0); /* size placeholder */
2980 ffio_wfourcc(pb, "mfra");
2981 /* An empty mfra atom is enough to indicate to the publishing point that
2982 * the stream has ended. */
2983 if (mov->flags & FF_MOV_FLAG_ISML)
2984 return update_size(pb, pos);
2986 for (i = 0; i < mov->nb_streams; i++) {
2987 MOVTrack *track = &mov->tracks[i];
2988 if (track->nb_frag_info)
2989 mov_write_tfra_tag(pb, track);
2993 ffio_wfourcc(pb, "mfro");
2994 avio_wb32(pb, 0); /* version + flags */
2995 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2997 return update_size(pb, pos);
3000 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3002 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3003 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3005 mov->mdat_pos = avio_tell(pb);
3006 avio_wb32(pb, 0); /* size placeholder*/
3007 ffio_wfourcc(pb, "mdat");
3011 /* TODO: This needs to be more general */
3012 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3014 MOVMuxContext *mov = s->priv_data;
3015 int64_t pos = avio_tell(pb);
3016 int has_h264 = 0, has_video = 0;
3020 for (i = 0; i < s->nb_streams; i++) {
3021 AVStream *st = s->streams[i];
3022 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3024 if (st->codec->codec_id == AV_CODEC_ID_H264)
3028 avio_wb32(pb, 0); /* size */
3029 ffio_wfourcc(pb, "ftyp");
3031 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3032 ffio_wfourcc(pb, mov->major_brand);
3033 else if (mov->mode == MODE_3GP) {
3034 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3035 minor = has_h264 ? 0x100 : 0x200;
3036 } else if (mov->mode & MODE_3G2) {
3037 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3038 minor = has_h264 ? 0x20000 : 0x10000;
3039 } else if (mov->mode == MODE_PSP)
3040 ffio_wfourcc(pb, "MSNV");
3041 else if (mov->mode == MODE_MP4)
3042 ffio_wfourcc(pb, "isom");
3043 else if (mov->mode == MODE_IPOD)
3044 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3045 else if (mov->mode == MODE_ISM)
3046 ffio_wfourcc(pb, "isml");
3047 else if (mov->mode == MODE_F4V)
3048 ffio_wfourcc(pb, "f4v ");
3050 ffio_wfourcc(pb, "qt ");
3052 avio_wb32(pb, minor);
3054 if (mov->mode == MODE_MOV)
3055 ffio_wfourcc(pb, "qt ");
3056 else if (mov->mode == MODE_ISM) {
3057 ffio_wfourcc(pb, "piff");
3058 ffio_wfourcc(pb, "iso2");
3060 ffio_wfourcc(pb, "isom");
3061 ffio_wfourcc(pb, "iso2");
3063 ffio_wfourcc(pb, "avc1");
3066 if (mov->mode == MODE_3GP)
3067 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3068 else if (mov->mode & MODE_3G2)
3069 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3070 else if (mov->mode == MODE_PSP)
3071 ffio_wfourcc(pb, "MSNV");
3072 else if (mov->mode == MODE_MP4)
3073 ffio_wfourcc(pb, "mp41");
3074 return update_size(pb, pos);
3077 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3079 AVStream *video_st = s->streams[0];
3080 AVCodecContext *video_codec = s->streams[0]->codec;
3081 AVCodecContext *audio_codec = s->streams[1]->codec;
3082 int audio_rate = audio_codec->sample_rate;
3083 // TODO: should be avg_frame_rate
3084 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3085 int audio_kbitrate = audio_codec->bit_rate / 1000;
3086 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3088 avio_wb32(pb, 0x94); /* size */
3089 ffio_wfourcc(pb, "uuid");
3090 ffio_wfourcc(pb, "PROF");
3092 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3093 avio_wb32(pb, 0xbb88695c);
3094 avio_wb32(pb, 0xfac9c740);
3096 avio_wb32(pb, 0x0); /* ? */
3097 avio_wb32(pb, 0x3); /* 3 sections ? */
3099 avio_wb32(pb, 0x14); /* size */
3100 ffio_wfourcc(pb, "FPRF");
3101 avio_wb32(pb, 0x0); /* ? */
3102 avio_wb32(pb, 0x0); /* ? */
3103 avio_wb32(pb, 0x0); /* ? */
3105 avio_wb32(pb, 0x2c); /* size */
3106 ffio_wfourcc(pb, "APRF"); /* audio */
3108 avio_wb32(pb, 0x2); /* TrackID */
3109 ffio_wfourcc(pb, "mp4a");
3110 avio_wb32(pb, 0x20f);
3112 avio_wb32(pb, audio_kbitrate);
3113 avio_wb32(pb, audio_kbitrate);
3114 avio_wb32(pb, audio_rate);
3115 avio_wb32(pb, audio_codec->channels);
3117 avio_wb32(pb, 0x34); /* size */
3118 ffio_wfourcc(pb, "VPRF"); /* video */
3120 avio_wb32(pb, 0x1); /* TrackID */
3121 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3122 ffio_wfourcc(pb, "avc1");
3123 avio_wb16(pb, 0x014D);
3124 avio_wb16(pb, 0x0015);
3126 ffio_wfourcc(pb, "mp4v");
3127 avio_wb16(pb, 0x0000);
3128 avio_wb16(pb, 0x0103);
3131 avio_wb32(pb, video_kbitrate);
3132 avio_wb32(pb, video_kbitrate);
3133 avio_wb32(pb, frame_rate);
3134 avio_wb32(pb, frame_rate);
3135 avio_wb16(pb, video_codec->width);
3136 avio_wb16(pb, video_codec->height);
3137 avio_wb32(pb, 0x010001); /* ? */
3140 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3143 int i, closed_gop = 0;
3145 for (i = 0; i < pkt->size - 4; i++) {
3146 c = (c << 8) + pkt->data[i];
3147 if (c == 0x1b8) { // gop
3148 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3149 } else if (c == 0x100) { // pic
3150 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3151 if (!temp_ref || closed_gop) // I picture is not reordered
3152 *flags = MOV_SYNC_SAMPLE;
3154 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3161 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3163 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3164 int seq = 0, entry = 0;
3165 int key = pkt->flags & AV_PKT_FLAG_KEY;
3166 start = find_next_marker(pkt->data, end);
3167 for (next = start; next < end; start = next) {
3168 next = find_next_marker(start + 4, end);
3169 switch (AV_RB32(start)) {
3170 case VC1_CODE_SEQHDR:
3173 case VC1_CODE_ENTRYPOINT:
3176 case VC1_CODE_SLICE:
3177 trk->vc1_info.slices = 1;
3181 if (!trk->entry && !fragment) {
3182 /* First packet in first fragment */
3183 trk->vc1_info.first_packet_seq = seq;
3184 trk->vc1_info.first_packet_entry = entry;
3185 } else if ((seq && !trk->vc1_info.packet_seq) ||
3186 (entry && !trk->vc1_info.packet_entry)) {
3188 for (i = 0; i < trk->entry; i++)
3189 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3190 trk->has_keyframes = 0;
3192 trk->vc1_info.packet_seq = 1;
3194 trk->vc1_info.packet_entry = 1;
3196 /* First fragment */
3197 if ((!seq || trk->vc1_info.first_packet_seq) &&
3198 (!entry || trk->vc1_info.first_packet_entry)) {
3199 /* First packet had the same headers as this one, readd the
3200 * sync sample flag. */
3201 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3202 trk->has_keyframes = 1;
3206 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3208 else if (trk->vc1_info.packet_seq)
3210 else if (trk->vc1_info.packet_entry)
3213 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3214 trk->has_keyframes++;
3218 static int mov_flush_fragment(AVFormatContext *s)
3220 MOVMuxContext *mov = s->priv_data;
3221 int i, first_track = -1;
3222 int64_t mdat_size = 0;
3224 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3227 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3228 int64_t pos = avio_tell(s->pb);
3230 int buf_size, moov_size;
3232 for (i = 0; i < mov->nb_streams; i++)
3233 if (!mov->tracks[i].entry)
3235 /* Don't write the initial moov unless all tracks have data */
3236 if (i < mov->nb_streams)
3239 moov_size = get_moov_size(s);
3240 for (i = 0; i < mov->nb_streams; i++)
3241 mov->tracks[i].data_offset = pos + moov_size + 8;
3243 mov_write_moov_tag(s->pb, mov, s);
3245 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3246 mov->mdat_buf = NULL;
3247 avio_wb32(s->pb, buf_size + 8);
3248 ffio_wfourcc(s->pb, "mdat");
3249 avio_write(s->pb, buf, buf_size);
3254 for (i = 0; i < mov->nb_streams; i++) {
3255 if (mov->tracks[i].entry)
3256 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3257 mov->tracks[i].track_duration -
3258 mov->tracks[i].cluster[0].dts;
3259 mov->tracks[i].entry = 0;
3265 for (i = 0; i < mov->nb_streams; i++) {
3266 MOVTrack *track = &mov->tracks[i];
3267 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3268 track->data_offset = 0;
3270 track->data_offset = mdat_size;
3271 if (!track->mdat_buf)
3273 mdat_size += avio_tell(track->mdat_buf);
3274 if (first_track < 0)
3281 for (i = 0; i < mov->nb_streams; i++) {
3282 MOVTrack *track = &mov->tracks[i];
3283 int buf_size, write_moof = 1, moof_tracks = -1;
3285 int64_t duration = 0;
3288 duration = track->start_dts + track->track_duration -
3289 track->cluster[0].dts;
3290 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3291 if (!track->mdat_buf)
3293 mdat_size = avio_tell(track->mdat_buf);
3296 write_moof = i == first_track;
3300 MOVFragmentInfo *info;
3302 track->nb_frag_info++;
3303 if (track->nb_frag_info >= track->frag_info_capacity) {
3304 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3305 if (av_reallocp_array(&track->frag_info,
3307 sizeof(*track->frag_info)))
3308 return AVERROR(ENOMEM);
3309 track->frag_info_capacity = new_capacity;
3311 info = &track->frag_info[track->nb_frag_info - 1];
3312 info->offset = avio_tell(s->pb);
3313 info->time = mov->tracks[i].frag_start;
3314 info->duration = duration;
3315 mov_write_tfrf_tags(s->pb, mov, track);
3317 mov_write_moof_tag(s->pb, mov, moof_tracks);
3318 info->tfrf_offset = track->tfrf_offset;
3321 avio_wb32(s->pb, mdat_size + 8);
3322 ffio_wfourcc(s->pb, "mdat");
3326 track->frag_start += duration;
3328 if (!track->mdat_buf)
3330 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3331 track->mdat_buf = NULL;
3333 avio_write(s->pb, buf, buf_size);
3343 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3345 MOVMuxContext *mov = s->priv_data;
3346 AVIOContext *pb = s->pb;
3347 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3348 AVCodecContext *enc = trk->enc;
3349 unsigned int samples_in_chunk = 0;
3350 int size = pkt->size;
3351 uint8_t *reformatted_data = NULL;
3354 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3355 if (duration < 0 || duration > INT_MAX) {
3356 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3360 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3361 pkt->pts = AV_NOPTS_VALUE;
3363 if (pkt->duration < 0) {
3364 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3365 return AVERROR(EINVAL);
3368 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3370 if (mov->fragments > 0) {
3371 if (!trk->mdat_buf) {
3372 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3377 if (!mov->mdat_buf) {
3378 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3385 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3386 /* We must find out how many AMR blocks there are in one packet */
3387 static uint16_t packed_size[16] =
3388 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3391 while (len < size && samples_in_chunk < 100) {
3392 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3395 if (samples_in_chunk > 1) {
3396 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3399 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3400 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3401 samples_in_chunk = enc->frame_size;
3402 } else if (trk->sample_size)
3403 samples_in_chunk = size / trk->sample_size;
3405 samples_in_chunk = 1;
3407 /* copy extradata if it exists */
3408 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3409 trk->vos_len = enc->extradata_size;
3410 trk->vos_data = av_malloc(trk->vos_len);
3411 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3414 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3415 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3416 if (!s->streams[pkt->stream_index]->nb_frames) {
3417 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3418 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3419 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3422 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3424 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3425 /* from x264 or from bytestream h264 */
3426 /* nal reformating needed */
3427 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3428 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3430 avio_write(pb, reformatted_data, size);
3432 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3434 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3435 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3436 /* extradata is Annex B, assume the bitstream is too and convert it */
3437 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3438 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3439 avio_write(pb, reformatted_data, size);
3441 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3444 avio_write(pb, pkt->data, size);
3447 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3448 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3449 /* copy frame to create needed atoms */
3450 trk->vos_len = size;
3451 trk->vos_data = av_malloc(size);
3453 return AVERROR(ENOMEM);
3454 memcpy(trk->vos_data, pkt->data, size);
3457 if (trk->entry >= trk->cluster_capacity) {
3458 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3459 if (av_reallocp_array(&trk->cluster, new_capacity,
3460 sizeof(*trk->cluster)))
3461 return AVERROR(ENOMEM);
3462 trk->cluster_capacity = new_capacity;
3465 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3466 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3467 trk->cluster[trk->entry].chunkNum = 0;
3468 trk->cluster[trk->entry].size = size;
3469 trk->cluster[trk->entry].entries = samples_in_chunk;
3470 trk->cluster[trk->entry].dts = pkt->dts;
3471 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3472 /* First packet of a new fragment. We already wrote the duration
3473 * of the last packet of the previous fragment based on track_duration,
3474 * which might not exactly match our dts. Therefore adjust the dts
3475 * of this packet to be what the previous packets duration implies. */
3476 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3478 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3479 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3481 if (trk->start_dts == AV_NOPTS_VALUE)
3482 trk->start_dts = pkt->dts;
3483 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3484 trk->last_sample_is_subtitle_end = 0;
3486 if (pkt->pts == AV_NOPTS_VALUE) {
3487 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3488 pkt->pts = pkt->dts;
3490 if (pkt->dts != pkt->pts)
3491 trk->flags |= MOV_TRACK_CTTS;
3492 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3493 trk->cluster[trk->entry].flags = 0;
3494 if (enc->codec_id == AV_CODEC_ID_VC1) {
3495 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3496 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3497 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3498 trk->entry > 0) { // force sync sample for the first key frame
3499 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3500 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3501 trk->flags |= MOV_TRACK_STPS;
3503 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3505 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3506 trk->has_keyframes++;
3509 trk->sample_count += samples_in_chunk;
3510 mov->mdat_size += size;
3512 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3513 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3514 reformatted_data, size);
3515 av_free(reformatted_data);
3519 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3521 MOVMuxContext *mov = s->priv_data;
3522 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3523 AVCodecContext *enc = trk->enc;
3524 int64_t frag_duration = 0;
3525 int size = pkt->size;
3528 return 0; /* Discard 0 sized packets */
3530 if (trk->entry && pkt->stream_index < s->nb_streams)
3531 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3532 s->streams[pkt->stream_index]->time_base,
3534 if ((mov->max_fragment_duration &&
3535 frag_duration >= mov->max_fragment_duration) ||
3536 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3537 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3538 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3539 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3540 if (frag_duration >= mov->min_fragment_duration)
3541 mov_flush_fragment(s);
3544 return ff_mov_write_packet(s, pkt);
3547 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3551 uint8_t data[2] = {0};
3554 av_init_packet(&end);
3555 end.size = sizeof(data);
3560 end.stream_index = stream_index;
3562 ret = mov_write_single_packet(s, &end);
3563 av_free_packet(&end);
3568 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3571 mov_flush_fragment(s);
3575 MOVMuxContext *mov = s->priv_data;
3577 if (!pkt->size) return 0; /* Discard 0 sized packets */
3580 * Subtitles require special handling.
3582 * 1) For full complaince, every track must have a sample at
3583 * dts == 0, which is rarely true for subtitles. So, as soon
3584 * as we see any packet with dts > 0, write an empty subtitle
3585 * at dts == 0 for any subtitle track with no samples in it.
3587 * 2) For each subtitle track, check if the current packet's
3588 * dts is past the duration of the last subtitle sample. If
3589 * so, we now need to write an end sample for that subtitle.
3591 * This must be done conditionally to allow for subtitles that
3592 * immediately replace each other, in which case an end sample
3593 * is not needed, and is, in fact, actively harmful.
3595 * 3) See mov_write_trailer for how the final end sample is
3598 for (i = 0; i < mov->nb_streams; i++) {
3599 MOVTrack *trk = &mov->tracks[i];
3602 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3603 trk->track_duration < pkt->dts &&
3604 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3605 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3606 if (ret < 0) return ret;
3607 trk->last_sample_is_subtitle_end = 1;
3611 return mov_write_single_packet(s, pkt);
3615 // QuickTime chapters involve an additional text track with the chapter names
3616 // as samples, and a tref pointing from the other tracks to the chapter one.
3617 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3621 MOVMuxContext *mov = s->priv_data;
3622 MOVTrack *track = &mov->tracks[tracknum];
3623 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3626 track->mode = mov->mode;
3627 track->tag = MKTAG('t','e','x','t');
3628 track->timescale = MOV_TIMESCALE;
3629 track->enc = avcodec_alloc_context3(NULL);
3631 return AVERROR(ENOMEM);
3632 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3634 // These properties are required to make QT recognize the chapter track
3635 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3636 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3637 return AVERROR(ENOMEM);
3638 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3640 if (avio_open_dyn_buf(&pb) >= 0) {
3644 /* Stub header (usually for Quicktime chapter track) */
3646 avio_wb32(pb, 0x01); // displayFlags
3647 avio_w8(pb, 0x00); // horizontal justification
3648 avio_w8(pb, 0x00); // vertical justification
3649 avio_w8(pb, 0x00); // bgColourRed
3650 avio_w8(pb, 0x00); // bgColourGreen
3651 avio_w8(pb, 0x00); // bgColourBlue
3652 avio_w8(pb, 0x00); // bgColourAlpha
3654 avio_wb16(pb, 0x00); // defTextBoxTop
3655 avio_wb16(pb, 0x00); // defTextBoxLeft
3656 avio_wb16(pb, 0x00); // defTextBoxBottom
3657 avio_wb16(pb, 0x00); // defTextBoxRight
3659 avio_wb16(pb, 0x00); // startChar
3660 avio_wb16(pb, 0x00); // endChar
3661 avio_wb16(pb, 0x01); // fontID
3662 avio_w8(pb, 0x00); // fontStyleFlags
3663 avio_w8(pb, 0x00); // fontSize
3664 avio_w8(pb, 0x00); // fgColourRed
3665 avio_w8(pb, 0x00); // fgColourGreen
3666 avio_w8(pb, 0x00); // fgColourBlue
3667 avio_w8(pb, 0x00); // fgColourAlpha
3669 avio_wb32(pb, 0x0D); // box size
3670 ffio_wfourcc(pb, "ftab"); // box atom name
3671 avio_wb16(pb, 0x01); // entry count
3673 avio_wb16(pb, 0x01); // font ID
3674 avio_w8(pb, 0x00); // font name length
3676 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3677 track->enc->extradata = buf;
3678 track->enc->extradata_size = size;
3685 for (i = 0; i < s->nb_chapters; i++) {
3686 AVChapter *c = s->chapters[i];
3687 AVDictionaryEntry *t;
3689 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3690 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3691 pkt.duration = end - pkt.dts;
3693 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3694 len = strlen(t->value);
3696 pkt.data = av_malloc(pkt.size);
3698 return AVERROR(ENOMEM);
3699 AV_WB16(pkt.data, len);
3700 memcpy(pkt.data + 2, t->value, len);
3701 ff_mov_write_packet(s, &pkt);
3702 av_freep(&pkt.data);
3709 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3712 MOVMuxContext *mov = s->priv_data;
3713 MOVTrack *track = &mov->tracks[index];
3714 AVStream *src_st = s->streams[src_index];
3716 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3717 AVRational rate = find_fps(s, src_st);
3719 /* compute the frame number */
3720 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3724 /* tmcd track based on video stream */
3725 track->mode = mov->mode;
3726 track->tag = MKTAG('t','m','c','d');
3727 track->src_track = src_index;
3728 track->timescale = mov->tracks[src_index].timescale;
3729 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3730 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3732 /* encode context: tmcd data stream */
3733 track->enc = avcodec_alloc_context3(NULL);
3734 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3735 track->enc->codec_tag = track->tag;
3736 track->enc->time_base = av_inv_q(rate);
3738 /* the tmcd track just contains one packet with the frame number */
3739 pkt.data = av_malloc(pkt.size);
3740 AV_WB32(pkt.data, tc.start);
3741 ret = ff_mov_write_packet(s, &pkt);
3747 * st->disposition controls the "enabled" flag in the tkhd tag.
3748 * QuickTime will not play a track if it is not enabled. So make sure
3749 * that one track of each type (audio, video, subtitle) is enabled.
3751 * Subtitles are special. For audio and video, setting "enabled" also
3752 * makes the track "default" (i.e. it is rendered when played). For
3753 * subtitles, an "enabled" subtitle is not rendered by default, but
3754 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3757 static void enable_tracks(AVFormatContext *s)
3759 MOVMuxContext *mov = s->priv_data;
3761 int enabled[AVMEDIA_TYPE_NB];
3762 int first[AVMEDIA_TYPE_NB];
3764 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3769 for (i = 0; i < s->nb_streams; i++) {
3770 AVStream *st = s->streams[i];
3772 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3773 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3776 if (first[st->codec->codec_type] < 0)
3777 first[st->codec->codec_type] = i;
3778 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3779 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3780 enabled[st->codec->codec_type]++;
3784 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3786 case AVMEDIA_TYPE_VIDEO:
3787 case AVMEDIA_TYPE_AUDIO:
3788 case AVMEDIA_TYPE_SUBTITLE:
3790 mov->per_stream_grouping = 1;
3791 if (!enabled[i] && first[i] >= 0)
3792 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3798 static void mov_free(AVFormatContext *s)
3800 MOVMuxContext *mov = s->priv_data;
3803 if (mov->chapter_track) {
3804 if (mov->tracks[mov->chapter_track].enc)
3805 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3806 av_freep(&mov->tracks[mov->chapter_track].enc);
3809 for (i = 0; i < mov->nb_streams; i++) {
3810 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3811 ff_mov_close_hinting(&mov->tracks[i]);
3812 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3813 av_freep(&mov->tracks[i].enc);
3814 av_freep(&mov->tracks[i].cluster);
3815 av_freep(&mov->tracks[i].frag_info);
3817 if (mov->tracks[i].vos_len)
3818 av_freep(&mov->tracks[i].vos_data);
3821 av_freep(&mov->tracks);
3824 static uint32_t rgb_to_yuv(uint32_t rgb)
3829 r = (rgb >> 16) & 0xFF;
3830 g = (rgb >> 8) & 0xFF;
3833 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3834 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3835 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3837 return (y << 16) | (cr << 8) | cb;
3840 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3843 int i, width = 720, height = 480;
3844 int have_palette = 0, have_size = 0;
3845 uint32_t palette[16];
3846 char *cur = st->codec->extradata;
3848 while (cur && *cur) {
3849 if (strncmp("palette:", cur, 8) == 0) {
3851 count = sscanf(cur + 8,
3852 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3853 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3854 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3855 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3856 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3857 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3858 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3859 &palette[12], &palette[13], &palette[14], &palette[15]);
3861 for (i = 0; i < count; i++) {
3862 palette[i] = rgb_to_yuv(palette[i]);
3865 } else if (!strncmp("size:", cur, 5)) {
3866 sscanf(cur + 5, "%dx%d", &width, &height);
3869 if (have_palette && have_size)
3871 cur += strcspn(cur, "\n\r");
3872 cur += strspn(cur, "\n\r");
3875 track->vos_data = av_malloc(16*4);
3876 if (!track->vos_data)
3877 return AVERROR(ENOMEM);
3878 for (i = 0; i < 16; i++) {
3879 AV_WB32(track->vos_data + i * 4, palette[i]);
3881 track->vos_len = 16 * 4;
3883 st->codec->width = width;
3884 st->codec->height = track->height = height;
3889 static int mov_write_header(AVFormatContext *s)
3891 AVIOContext *pb = s->pb;
3892 MOVMuxContext *mov = s->priv_data;
3893 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3894 int i, ret, hint_track = 0, tmcd_track = 0;
3896 /* Default mode == MP4 */
3897 mov->mode = MODE_MP4;
3899 if (s->oformat != NULL) {
3900 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3901 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3902 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3903 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3904 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3905 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3906 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3909 for (i = 0; i < s->nb_streams; i++)
3910 if (s->flags & AVFMT_FLAG_BITEXACT)
3913 /* Set the FRAGMENT flag if any of the fragmentation methods are
3915 if (mov->max_fragment_duration || mov->max_fragment_size ||
3916 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3917 FF_MOV_FLAG_FRAG_KEYFRAME |
3918 FF_MOV_FLAG_FRAG_CUSTOM))
3919 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3921 /* Set other implicit flags immediately */
3922 if (mov->mode == MODE_ISM)
3923 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3924 FF_MOV_FLAG_FRAGMENT;
3926 /* faststart: moov at the beginning of the file, if supported */
3927 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3928 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3929 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3930 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3931 "with fragmentation and custom IO, disabling faststart\n");
3932 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3934 mov->reserved_moov_size = -1;
3937 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3938 s->avoid_negative_ts = 2;
3941 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3942 * is enabled, we don't support non-seekable output at all. */
3943 if (!s->pb->seekable &&
3944 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3945 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3946 return AVERROR(EINVAL);
3949 mov_write_ftyp_tag(pb,s);
3950 if (mov->mode == MODE_PSP) {
3951 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3952 for (i = 0; i < s->nb_streams; i++) {
3953 AVStream *st = s->streams[i];
3954 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3956 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3962 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3963 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3964 return AVERROR(EINVAL);
3966 mov_write_uuidprof_tag(pb, s);
3969 mov->nb_streams = s->nb_streams;
3970 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3971 mov->chapter_track = mov->nb_streams++;
3973 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3974 /* Add hint tracks for each audio and video stream */
3975 hint_track = mov->nb_streams;
3976 for (i = 0; i < s->nb_streams; i++) {
3977 AVStream *st = s->streams[i];
3978 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3979 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3985 if (mov->mode == MODE_MOV) {
3986 tmcd_track = mov->nb_streams;
3988 /* +1 tmcd track for each video stream with a timecode */
3989 for (i = 0; i < s->nb_streams; i++) {
3990 AVStream *st = s->streams[i];
3991 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3992 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3993 mov->nb_meta_tmcd++;
3996 /* check if there is already a tmcd track to remux */
3997 if (mov->nb_meta_tmcd) {
3998 for (i = 0; i < s->nb_streams; i++) {
3999 AVStream *st = s->streams[i];
4000 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4001 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4002 "so timecode metadata are now ignored\n");
4003 mov->nb_meta_tmcd = 0;
4008 mov->nb_streams += mov->nb_meta_tmcd;
4011 // Reserve an extra stream for chapters for the case where chapters
4012 // are written in the trailer
4013 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4015 return AVERROR(ENOMEM);
4017 for (i = 0; i < s->nb_streams; i++) {
4018 AVStream *st= s->streams[i];
4019 MOVTrack *track= &mov->tracks[i];
4020 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4023 track->enc = st->codec;
4024 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4025 if (track->language < 0)
4026 track->language = 0;
4027 track->mode = mov->mode;
4028 track->tag = mov_find_codec_tag(s, track);
4030 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4031 "codec not currently supported in container\n",
4032 avcodec_get_name(st->codec->codec_id), i);
4033 ret = AVERROR(EINVAL);
4036 /* If hinting of this track is enabled by a later hint track,
4037 * this is updated. */
4038 track->hint_track = -1;
4039 track->start_dts = AV_NOPTS_VALUE;
4040 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4041 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4042 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4043 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4044 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4045 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4046 ret = AVERROR(EINVAL);
4049 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4051 if (mov->video_track_timescale) {
4052 track->timescale = mov->video_track_timescale;
4054 track->timescale = st->time_base.den;
4055 while(track->timescale < 10000)
4056 track->timescale *= 2;
4058 if (st->codec->width > 65535 || st->codec->height > 65535) {
4059 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4060 ret = AVERROR(EINVAL);
4063 if (track->mode == MODE_MOV && track->timescale > 100000)
4064 av_log(s, AV_LOG_WARNING,
4065 "WARNING codec timebase is very high. If duration is too long,\n"
4066 "file may not be playable by quicktime. Specify a shorter timebase\n"
4067 "or choose different container.\n");
4068 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4069 track->timescale = st->codec->sample_rate;
4070 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4071 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4072 track->audio_vbr = 1;
4073 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4074 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4075 st->codec->codec_id == AV_CODEC_ID_ILBC){
4076 if (!st->codec->block_align) {
4077 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4078 ret = AVERROR(EINVAL);
4081 track->sample_size = st->codec->block_align;
4082 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4083 track->audio_vbr = 1;
4085 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4087 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4088 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4089 track->audio_vbr = 1;
4091 if (track->mode != MODE_MOV &&
4092 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4093 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4094 i, track->enc->sample_rate);
4095 ret = AVERROR(EINVAL);
4098 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4099 track->timescale = st->time_base.den;
4100 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4101 track->timescale = st->time_base.den;
4103 track->timescale = MOV_TIMESCALE;
4106 track->height = st->codec->height;
4107 /* The ism specific timescale isn't mandatory, but is assumed by
4108 * some tools, such as mp4split. */
4109 if (mov->mode == MODE_ISM)
4110 track->timescale = 10000000;
4112 avpriv_set_pts_info(st, 64, 1, track->timescale);
4114 /* copy extradata if it exists */
4115 if (st->codec->extradata_size) {
4116 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4117 mov_create_dvd_sub_decoder_specific_info(track, st);
4119 track->vos_len = st->codec->extradata_size;
4120 track->vos_data = av_malloc(track->vos_len);
4121 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4126 for (i = 0; i < s->nb_streams; i++) {
4128 AVStream *st= s->streams[i];
4129 MOVTrack *track= &mov->tracks[i];
4131 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4132 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4135 for (j = 0; j < s->nb_streams; j++) {
4136 AVStream *stj= s->streams[j];
4137 MOVTrack *trackj= &mov->tracks[j];
4141 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4142 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4143 trackj->language != track->language ||
4144 trackj->tag != track->tag
4147 track->multichannel_as_mono++;
4154 if (mov->reserved_moov_size){
4155 mov->reserved_moov_pos= avio_tell(pb);
4156 if (mov->reserved_moov_size > 0)
4157 avio_skip(pb, mov->reserved_moov_size);
4160 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4161 /* If no fragmentation options have been set, set a default. */
4162 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4163 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4164 !mov->max_fragment_duration && !mov->max_fragment_size)
4165 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4167 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4168 mov->reserved_moov_pos = avio_tell(pb);
4169 mov_write_mdat_tag(pb, mov);
4172 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4173 mov->time = ff_iso8601_to_unix_time(t->value);
4175 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4177 if (mov->chapter_track)
4178 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4181 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4182 /* Initialize the hint tracks for each audio and video stream */
4183 for (i = 0; i < s->nb_streams; i++) {
4184 AVStream *st = s->streams[i];
4185 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4186 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4187 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4194 if (mov->nb_meta_tmcd) {
4195 /* Initialize the tmcd tracks */
4196 for (i = 0; i < s->nb_streams; i++) {
4197 AVStream *st = s->streams[i];
4200 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4202 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4205 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4214 if (mov->flags & FF_MOV_FLAG_ISML)
4215 mov_write_isml_manifest(pb, mov);
4217 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4218 mov_write_moov_tag(pb, mov, s);
4228 static int get_moov_size(AVFormatContext *s)
4231 AVIOContext *moov_buf;
4232 MOVMuxContext *mov = s->priv_data;
4234 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4236 mov_write_moov_tag(moov_buf, mov, s);
4237 return ffio_close_null_buf(moov_buf);
4241 * This function gets the moov size if moved to the top of the file: the chunk
4242 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4243 * entries) when the moov is moved to the beginning, so the size of the moov
4244 * would change. It also updates the chunk offset tables.
4246 static int compute_moov_size(AVFormatContext *s)
4248 int i, moov_size, moov_size2;
4249 MOVMuxContext *mov = s->priv_data;
4251 moov_size = get_moov_size(s);
4255 for (i = 0; i < mov->nb_streams; i++)
4256 mov->tracks[i].data_offset += moov_size;
4258 moov_size2 = get_moov_size(s);
4262 /* if the size changed, we just switched from stco to co64 and need to
4263 * update the offsets */
4264 if (moov_size2 != moov_size)
4265 for (i = 0; i < mov->nb_streams; i++)
4266 mov->tracks[i].data_offset += moov_size2 - moov_size;
4271 static int shift_data(AVFormatContext *s)
4273 int ret = 0, moov_size;
4274 MOVMuxContext *mov = s->priv_data;
4275 int64_t pos, pos_end = avio_tell(s->pb);
4276 uint8_t *buf, *read_buf[2];
4277 int read_buf_id = 0;
4279 AVIOContext *read_pb;
4281 moov_size = compute_moov_size(s);
4285 buf = av_malloc(moov_size * 2);
4287 return AVERROR(ENOMEM);
4289 read_buf[1] = buf + moov_size;
4291 /* Shift the data: the AVIO context of the output can only be used for
4292 * writing, so we re-open the same output, but for reading. It also avoids
4293 * a read/seek/write/seek back and forth. */
4295 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4297 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4298 "the second pass (faststart)\n", s->filename);
4302 /* mark the end of the shift to up to the last data we wrote, and get ready
4304 pos_end = avio_tell(s->pb);
4305 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4307 /* start reading at where the new moov will be placed */
4308 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4309 pos = avio_tell(read_pb);
4311 #define READ_BLOCK do { \
4312 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4316 /* shift data by chunk of at most moov_size */
4321 n = read_size[read_buf_id];
4324 avio_write(s->pb, read_buf[read_buf_id], n);
4326 } while (pos < pos_end);
4327 avio_close(read_pb);
4334 static int mov_write_trailer(AVFormatContext *s)
4336 MOVMuxContext *mov = s->priv_data;
4337 AVIOContext *pb = s->pb;
4343 * Before actually writing the trailer, make sure that there are no
4344 * dangling subtitles, that need a terminating sample.
4346 for (i = 0; i < mov->nb_streams; i++) {
4347 MOVTrack *trk = &mov->tracks[i];
4348 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4349 !trk->last_sample_is_subtitle_end) {
4350 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4351 trk->last_sample_is_subtitle_end = 1;
4355 // If there were no chapters when the header was written, but there
4356 // are chapters now, write them in the trailer. This only works
4357 // when we are not doing fragments.
4358 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4359 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4360 mov->chapter_track = mov->nb_streams++;
4361 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4366 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4367 moov_pos = avio_tell(pb);
4369 /* Write size of mdat tag */
4370 if (mov->mdat_size + 8 <= UINT32_MAX) {
4371 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4372 avio_wb32(pb, mov->mdat_size + 8);
4374 /* overwrite 'wide' placeholder atom */
4375 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4376 /* special value: real atom size will be 64 bit value after
4379 ffio_wfourcc(pb, "mdat");
4380 avio_wb64(pb, mov->mdat_size + 16);
4382 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4384 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4385 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4386 res = shift_data(s);
4388 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4389 mov_write_moov_tag(pb, mov, s);
4391 } else if (mov->reserved_moov_size > 0) {
4393 mov_write_moov_tag(pb, mov, s);
4394 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4396 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4399 avio_wb32(pb, size);
4400 ffio_wfourcc(pb, "free");
4401 ffio_fill(pb, 0, size - 8);
4402 avio_seek(pb, moov_pos, SEEK_SET);
4404 mov_write_moov_tag(pb, mov, s);
4407 mov_flush_fragment(s);
4408 mov_write_mfra_tag(pb, mov);
4411 for (i = 0; i < mov->nb_streams; i++) {
4412 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4413 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4414 int64_t off = avio_tell(pb);
4416 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4417 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4418 avio_write(pb, buf, 7);
4419 avio_seek(pb, off, SEEK_SET);
4430 #if CONFIG_MOV_MUXER
4432 AVOutputFormat ff_mov_muxer = {
4434 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4435 .extensions = "mov",
4436 .priv_data_size = sizeof(MOVMuxContext),
4437 .audio_codec = AV_CODEC_ID_AAC,
4438 .video_codec = CONFIG_LIBX264_ENCODER ?
4439 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4440 .write_header = mov_write_header,
4441 .write_packet = mov_write_packet,
4442 .write_trailer = mov_write_trailer,
4443 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4444 .codec_tag = (const AVCodecTag* const []){
4445 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4447 .priv_class = &mov_muxer_class,
4450 #if CONFIG_TGP_MUXER
4452 AVOutputFormat ff_tgp_muxer = {
4454 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4455 .extensions = "3gp",
4456 .priv_data_size = sizeof(MOVMuxContext),
4457 .audio_codec = AV_CODEC_ID_AMR_NB,
4458 .video_codec = AV_CODEC_ID_H263,
4459 .write_header = mov_write_header,
4460 .write_packet = mov_write_packet,
4461 .write_trailer = mov_write_trailer,
4462 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4463 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4464 .priv_class = &tgp_muxer_class,
4467 #if CONFIG_MP4_MUXER
4469 AVOutputFormat ff_mp4_muxer = {
4471 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4472 .mime_type = "application/mp4",
4473 .extensions = "mp4",
4474 .priv_data_size = sizeof(MOVMuxContext),
4475 .audio_codec = AV_CODEC_ID_AAC,
4476 .video_codec = CONFIG_LIBX264_ENCODER ?
4477 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4478 .write_header = mov_write_header,
4479 .write_packet = mov_write_packet,
4480 .write_trailer = mov_write_trailer,
4481 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4482 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4483 .priv_class = &mp4_muxer_class,
4486 #if CONFIG_PSP_MUXER
4488 AVOutputFormat ff_psp_muxer = {
4490 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4491 .extensions = "mp4,psp",
4492 .priv_data_size = sizeof(MOVMuxContext),
4493 .audio_codec = AV_CODEC_ID_AAC,
4494 .video_codec = CONFIG_LIBX264_ENCODER ?
4495 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4496 .write_header = mov_write_header,
4497 .write_packet = mov_write_packet,
4498 .write_trailer = mov_write_trailer,
4499 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4500 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4501 .priv_class = &psp_muxer_class,
4504 #if CONFIG_TG2_MUXER
4506 AVOutputFormat ff_tg2_muxer = {
4508 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4509 .extensions = "3g2",
4510 .priv_data_size = sizeof(MOVMuxContext),
4511 .audio_codec = AV_CODEC_ID_AMR_NB,
4512 .video_codec = AV_CODEC_ID_H263,
4513 .write_header = mov_write_header,
4514 .write_packet = mov_write_packet,
4515 .write_trailer = mov_write_trailer,
4516 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4517 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4518 .priv_class = &tg2_muxer_class,
4521 #if CONFIG_IPOD_MUXER
4523 AVOutputFormat ff_ipod_muxer = {
4525 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4526 .mime_type = "application/mp4",
4527 .extensions = "m4v,m4a",
4528 .priv_data_size = sizeof(MOVMuxContext),
4529 .audio_codec = AV_CODEC_ID_AAC,
4530 .video_codec = AV_CODEC_ID_H264,
4531 .write_header = mov_write_header,
4532 .write_packet = mov_write_packet,
4533 .write_trailer = mov_write_trailer,
4534 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4535 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4536 .priv_class = &ipod_muxer_class,
4539 #if CONFIG_ISMV_MUXER
4541 AVOutputFormat ff_ismv_muxer = {
4543 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4544 .mime_type = "application/mp4",
4545 .extensions = "ismv,isma",
4546 .priv_data_size = sizeof(MOVMuxContext),
4547 .audio_codec = AV_CODEC_ID_AAC,
4548 .video_codec = AV_CODEC_ID_H264,
4549 .write_header = mov_write_header,
4550 .write_packet = mov_write_packet,
4551 .write_trailer = mov_write_trailer,
4552 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4553 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4554 .priv_class = &ismv_muxer_class,
4557 #if CONFIG_F4V_MUXER
4559 AVOutputFormat ff_f4v_muxer = {
4561 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4562 .mime_type = "application/f4v",
4563 .extensions = "f4v",
4564 .priv_data_size = sizeof(MOVMuxContext),
4565 .audio_codec = AV_CODEC_ID_AAC,
4566 .video_codec = AV_CODEC_ID_H264,
4567 .write_header = mov_write_header,
4568 .write_packet = mov_write_packet,
4569 .write_trailer = mov_write_trailer,
4570 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4571 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4572 .priv_class = &f4v_muxer_class,