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/ac3_parser.h"
35 #include "libavcodec/get_bits.h"
36 #include "libavcodec/put_bits.h"
37 #include "libavcodec/vc1_common.h"
38 #include "libavcodec/raw.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/timecode.h"
51 static const AVOption options[] = {
52 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "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" },
54 { "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 },
55 { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
65 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66 { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67 { "write_colr", "Write colr atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
68 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
69 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "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},
72 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
73 { "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},
74 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
75 { "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},
76 { "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},
77 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
78 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
79 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
83 #define MOV_CLASS(flavor)\
84 static const AVClass flavor ## _muxer_class = {\
85 .class_name = #flavor " muxer",\
86 .item_name = av_default_item_name,\
88 .version = LIBAVUTIL_VERSION_INT,\
91 static int get_moov_size(AVFormatContext *s);
93 static int utf8len(const uint8_t *b)
98 GET_UTF8(val, *b++, return -1;)
104 //FIXME support 64 bit variant with wide placeholders
105 static int64_t update_size(AVIOContext *pb, int64_t pos)
107 int64_t curpos = avio_tell(pb);
108 avio_seek(pb, pos, SEEK_SET);
109 avio_wb32(pb, curpos - pos); /* rewrite size */
110 avio_seek(pb, curpos, SEEK_SET);
115 static int co64_required(const MOVTrack *track)
117 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
122 /* Chunk offset atom */
123 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
126 int mode64 = co64_required(track); // use 32 bit size variant if possible
127 int64_t pos = avio_tell(pb);
128 avio_wb32(pb, 0); /* size */
130 ffio_wfourcc(pb, "co64");
132 ffio_wfourcc(pb, "stco");
133 avio_wb32(pb, 0); /* version & flags */
134 avio_wb32(pb, track->chunkCount); /* entry count */
135 for (i = 0; i < track->entry; i++) {
136 if (!track->cluster[i].chunkNum)
139 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
141 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
143 return update_size(pb, pos);
146 /* Sample size atom */
147 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
150 int i, j, entries = 0, tst = -1, oldtst = -1;
152 int64_t pos = avio_tell(pb);
153 avio_wb32(pb, 0); /* size */
154 ffio_wfourcc(pb, "stsz");
155 avio_wb32(pb, 0); /* version & flags */
157 for (i = 0; i < track->entry; i++) {
158 tst = track->cluster[i].size / track->cluster[i].entries;
159 if (oldtst != -1 && tst != oldtst)
162 entries += track->cluster[i].entries;
164 if (equalChunks && track->entry) {
165 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
166 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
167 avio_wb32(pb, sSize); // sample size
168 avio_wb32(pb, entries); // sample count
170 avio_wb32(pb, 0); // sample size
171 avio_wb32(pb, entries); // sample count
172 for (i = 0; i < track->entry; i++) {
173 for (j = 0; j < track->cluster[i].entries; j++) {
174 avio_wb32(pb, track->cluster[i].size /
175 track->cluster[i].entries);
179 return update_size(pb, pos);
182 /* Sample to chunk atom */
183 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
185 int index = 0, oldval = -1, i;
186 int64_t entryPos, curpos;
188 int64_t pos = avio_tell(pb);
189 avio_wb32(pb, 0); /* size */
190 ffio_wfourcc(pb, "stsc");
191 avio_wb32(pb, 0); // version & flags
192 entryPos = avio_tell(pb);
193 avio_wb32(pb, track->chunkCount); // entry count
194 for (i = 0; i < track->entry; i++) {
195 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
196 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
197 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
198 avio_wb32(pb, 0x1); // sample description index
199 oldval = track->cluster[i].samples_in_chunk;
203 curpos = avio_tell(pb);
204 avio_seek(pb, entryPos, SEEK_SET);
205 avio_wb32(pb, index); // rewrite size
206 avio_seek(pb, curpos, SEEK_SET);
208 return update_size(pb, pos);
211 /* Sync sample atom */
212 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
214 int64_t curpos, entryPos;
216 int64_t pos = avio_tell(pb);
217 avio_wb32(pb, 0); // size
218 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
219 avio_wb32(pb, 0); // version & flags
220 entryPos = avio_tell(pb);
221 avio_wb32(pb, track->entry); // entry count
222 for (i = 0; i < track->entry; i++) {
223 if (track->cluster[i].flags & flag) {
224 avio_wb32(pb, i + 1);
228 curpos = avio_tell(pb);
229 avio_seek(pb, entryPos, SEEK_SET);
230 avio_wb32(pb, index); // rewrite size
231 avio_seek(pb, curpos, SEEK_SET);
232 return update_size(pb, pos);
235 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
237 avio_wb32(pb, 0x11); /* size */
238 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
239 else ffio_wfourcc(pb, "damr");
240 ffio_wfourcc(pb, "FFMP");
241 avio_w8(pb, 0); /* decoder version */
243 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
244 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
245 avio_w8(pb, 0x01); /* Frames per sample */
249 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
254 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
256 if (track->vos_len < 7)
260 ffio_wfourcc(pb, "dac3");
262 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
263 fscod = get_bits(&gbc, 2);
264 frmsizecod = get_bits(&gbc, 6);
265 bsid = get_bits(&gbc, 5);
266 bsmod = get_bits(&gbc, 3);
267 acmod = get_bits(&gbc, 3);
269 skip_bits(&gbc, 2); // dsurmod
271 if ((acmod & 1) && acmod != 1)
272 skip_bits(&gbc, 2); // cmixlev
274 skip_bits(&gbc, 2); // surmixlev
276 lfeon = get_bits1(&gbc);
278 init_put_bits(&pbc, buf, sizeof(buf));
279 put_bits(&pbc, 2, fscod);
280 put_bits(&pbc, 5, bsid);
281 put_bits(&pbc, 3, bsmod);
282 put_bits(&pbc, 3, acmod);
283 put_bits(&pbc, 1, lfeon);
284 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
285 put_bits(&pbc, 5, 0); // reserved
287 flush_put_bits(&pbc);
288 avio_write(pb, buf, sizeof(buf));
298 /* Layout of the EC3SpecificBox */
299 /* maximum bitrate */
301 /* number of independent substreams */
304 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
306 /* bit stream identification 5 bits */
308 /* one bit reserved */
309 /* audio service mixing (not supported yet) 1 bit */
310 /* bit stream mode 3 bits */
312 /* audio coding mode 3 bits */
314 /* sub woofer on 1 bit */
316 /* 3 bits reserved */
317 /* number of dependent substreams associated with this substream 4 bits */
319 /* channel locations of the dependent substream(s), if any, 9 bits */
321 /* if there is no dependent substream, then one bit reserved instead */
322 } substream[1]; /* TODO: support 8 independent substreams */
325 #if CONFIG_AC3_PARSER
326 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
329 AC3HeaderInfo tmp, *hdr = &tmp;
330 struct eac3_info *info;
333 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
334 return AVERROR(ENOMEM);
335 info = track->eac3_priv;
337 init_get_bits(&gbc, pkt->data, pkt->size * 8);
338 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
339 /* drop the packets until we see a good one */
341 av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
344 return AVERROR_INVALIDDATA;
347 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
348 num_blocks = hdr->num_blocks;
350 if (!info->ec3_done) {
351 /* AC-3 substream must be the first one */
352 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
353 return AVERROR(EINVAL);
355 /* this should always be the case, given that our AC-3 parser
356 * concatenates dependent frames to their independent parent */
357 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
358 /* substream ids must be incremental */
359 if (hdr->substreamid > info->num_ind_sub + 1)
360 return AVERROR(EINVAL);
362 if (hdr->substreamid == info->num_ind_sub + 1) {
363 //info->num_ind_sub++;
364 avpriv_request_sample(track->enc, "Multiple independent substreams");
365 return AVERROR_PATCHWELCOME;
366 } else if (hdr->substreamid < info->num_ind_sub ||
367 hdr->substreamid == 0 && info->substream[0].bsid) {
373 /* fill the info needed for the "dec3" atom */
374 info->substream[hdr->substreamid].fscod = hdr->sr_code;
375 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
376 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
377 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
378 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
380 /* Parse dependent substream(s), if any */
381 if (pkt->size != hdr->frame_size) {
382 int cumul_size = hdr->frame_size;
383 int parent = hdr->substreamid;
385 while (cumul_size != pkt->size) {
387 init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
388 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
389 return AVERROR_INVALIDDATA;
390 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
391 return AVERROR(EINVAL);
392 cumul_size += hdr->frame_size;
393 info->substream[parent].num_dep_sub++;
395 /* header is parsed up to lfeon, but custom channel map may be needed */
398 /* skip volume control params */
399 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
400 skip_bits(&gbc, 5); // skip dialog normalization
401 if (get_bits1(&gbc)) {
402 skip_bits(&gbc, 8); // skip compression gain word
405 /* get the dependent stream channel map, if exists */
407 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
409 info->substream[parent].chan_loc |= hdr->channel_mode;
415 if (!info->num_blocks && num_blocks == 6)
417 else if (info->num_blocks + num_blocks > 6)
418 return AVERROR_INVALIDDATA;
420 if (!info->num_blocks) {
422 if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
424 info->num_blocks = num_blocks;
428 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
430 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
431 info->num_blocks += num_blocks;
432 info->pkt.duration += pkt->duration;
433 if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
435 if (info->num_blocks != 6)
438 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
440 av_free_packet(&info->pkt);
441 info->num_blocks = 0;
448 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
452 struct eac3_info *info;
455 if (!track->eac3_priv)
456 return AVERROR(EINVAL);
458 info = track->eac3_priv;
459 size = 2 + 4 * (info->num_ind_sub + 1);
460 buf = av_malloc(size);
462 size = AVERROR(ENOMEM);
466 init_put_bits(&pbc, buf, size);
467 put_bits(&pbc, 13, info->data_rate);
468 put_bits(&pbc, 3, info->num_ind_sub);
469 for (i = 0; i <= info->num_ind_sub; i++) {
470 put_bits(&pbc, 2, info->substream[i].fscod);
471 put_bits(&pbc, 5, info->substream[i].bsid);
472 put_bits(&pbc, 1, 0); /* reserved */
473 put_bits(&pbc, 1, 0); /* asvc */
474 put_bits(&pbc, 3, info->substream[i].bsmod);
475 put_bits(&pbc, 3, info->substream[i].acmod);
476 put_bits(&pbc, 1, info->substream[i].lfeon);
477 put_bits(&pbc, 5, 0); /* reserved */
478 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
479 if (!info->substream[i].num_dep_sub) {
480 put_bits(&pbc, 1, 0); /* reserved */
483 put_bits(&pbc, 9, info->substream[i].chan_loc);
486 flush_put_bits(&pbc);
488 avio_wb32(pb, size + 8);
489 ffio_wfourcc(pb, "dec3");
490 avio_write(pb, buf, size);
495 av_free_packet(&info->pkt);
496 av_freep(&track->eac3_priv);
502 * This function writes extradata "as is".
503 * Extradata must be formatted like a valid atom (with size and tag).
505 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
507 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
508 return track->enc->extradata_size;
511 static int mov_write_enda_tag(AVIOContext *pb)
514 ffio_wfourcc(pb, "enda");
515 avio_wb16(pb, 1); /* little endian */
519 static int mov_write_enda_tag_be(AVIOContext *pb)
522 ffio_wfourcc(pb, "enda");
523 avio_wb16(pb, 0); /* big endian */
527 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
532 avio_w8(pb, (size >> (7 * i)) | 0x80);
533 avio_w8(pb, size & 0x7F);
536 static unsigned compute_avg_bitrate(MOVTrack *track)
540 if (!track->track_duration)
542 for (i = 0; i < track->entry; i++)
543 size += track->cluster[i].size;
544 return size * 8 * track->timescale / track->track_duration;
547 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
549 int64_t pos = avio_tell(pb);
550 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
551 unsigned avg_bitrate;
553 avio_wb32(pb, 0); // size
554 ffio_wfourcc(pb, "esds");
555 avio_wb32(pb, 0); // Version
558 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
559 avio_wb16(pb, track->track_id);
560 avio_w8(pb, 0x00); // flags (= no flags)
562 // DecoderConfig descriptor
563 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
565 // Object type indication
566 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
567 track->enc->codec_id == AV_CODEC_ID_MP3) &&
568 track->enc->sample_rate > 24000)
569 avio_w8(pb, 0x6B); // 11172-3
571 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
573 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
574 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
575 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
576 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
577 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
578 avio_w8(pb, 0x15); // flags (= Audiostream)
580 avio_w8(pb, 0x11); // flags (= Visualstream)
582 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
584 avg_bitrate = compute_avg_bitrate(track);
585 // maxbitrate (FIXME should be max rate in any 1 sec window)
586 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
587 avio_wb32(pb, avg_bitrate);
589 if (track->vos_len) {
590 // DecoderSpecific info descriptor
591 put_descr(pb, 0x05, track->vos_len);
592 avio_write(pb, track->vos_data, track->vos_len);
596 put_descr(pb, 0x06, 1);
598 return update_size(pb, pos);
601 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
603 return codec_id == AV_CODEC_ID_PCM_S24LE ||
604 codec_id == AV_CODEC_ID_PCM_S32LE ||
605 codec_id == AV_CODEC_ID_PCM_F32LE ||
606 codec_id == AV_CODEC_ID_PCM_F64LE;
609 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
611 return codec_id == AV_CODEC_ID_PCM_S24BE ||
612 codec_id == AV_CODEC_ID_PCM_S32BE ||
613 codec_id == AV_CODEC_ID_PCM_F32BE ||
614 codec_id == AV_CODEC_ID_PCM_F64BE;
617 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
620 int64_t pos = avio_tell(pb);
622 avio_wl32(pb, track->tag); // store it byteswapped
623 track->enc->codec_tag = av_bswap16(track->tag >> 16);
624 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
626 return update_size(pb, pos);
629 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
632 int64_t pos = avio_tell(pb);
634 ffio_wfourcc(pb, "wfex");
635 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
637 return update_size(pb, pos);
640 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
642 uint32_t layout_tag, bitmap;
643 int64_t pos = avio_tell(pb);
645 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
646 track->enc->channel_layout,
649 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
650 "lack of channel information\n");
654 if (track->multichannel_as_mono)
657 avio_wb32(pb, 0); // Size
658 ffio_wfourcc(pb, "chan"); // Type
659 avio_w8(pb, 0); // Version
660 avio_wb24(pb, 0); // Flags
661 avio_wb32(pb, layout_tag); // mChannelLayoutTag
662 avio_wb32(pb, bitmap); // mChannelBitmap
663 avio_wb32(pb, 0); // mNumberChannelDescriptions
665 return update_size(pb, pos);
668 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
670 int64_t pos = avio_tell(pb);
672 avio_wb32(pb, 0); /* size */
673 ffio_wfourcc(pb, "wave");
675 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
676 avio_wb32(pb, 12); /* size */
677 ffio_wfourcc(pb, "frma");
678 avio_wl32(pb, track->tag);
681 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
682 /* useless atom needed by mplayer, ipod, not needed by quicktime */
683 avio_wb32(pb, 12); /* size */
684 ffio_wfourcc(pb, "mp4a");
686 mov_write_esds_tag(pb, track);
687 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
688 mov_write_enda_tag(pb);
689 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
690 mov_write_enda_tag_be(pb);
691 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
692 mov_write_amr_tag(pb, track);
693 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
694 mov_write_ac3_tag(pb, track);
695 } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
696 mov_write_eac3_tag(pb, track);
697 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
698 track->enc->codec_id == AV_CODEC_ID_QDM2) {
699 mov_write_extradata_tag(pb, track);
700 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
701 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
702 mov_write_ms_tag(pb, track);
705 avio_wb32(pb, 8); /* size */
706 avio_wb32(pb, 0); /* null tag */
708 return update_size(pb, pos);
711 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
714 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
715 int unescaped_size, seq_found = 0;
716 int level = 0, interlace = 0;
717 int packet_seq = track->vc1_info.packet_seq;
718 int packet_entry = track->vc1_info.packet_entry;
719 int slices = track->vc1_info.slices;
722 if (track->start_dts == AV_NOPTS_VALUE) {
723 /* No packets written yet, vc1_info isn't authoritative yet. */
724 /* Assume inline sequence and entry headers. */
725 packet_seq = packet_entry = 1;
726 av_log(NULL, AV_LOG_WARNING,
727 "moov atom written before any packets, unable to write correct "
728 "dvc1 atom. Set the delay_moov flag to fix this.\n");
731 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
733 return AVERROR(ENOMEM);
734 start = find_next_marker(track->vos_data, end);
735 for (next = start; next < end; start = next) {
738 next = find_next_marker(start + 4, end);
739 size = next - start - 4;
742 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
743 init_get_bits(&gb, unescaped, 8 * unescaped_size);
744 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
745 int profile = get_bits(&gb, 2);
746 if (profile != PROFILE_ADVANCED) {
748 return AVERROR(ENOSYS);
751 level = get_bits(&gb, 3);
752 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
754 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
755 skip_bits(&gb, 1); /* broadcast */
756 interlace = get_bits1(&gb);
757 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
762 return AVERROR(ENOSYS);
765 init_put_bits(&pbc, buf, 7);
766 /* VC1DecSpecStruc */
767 put_bits(&pbc, 4, 12); /* profile - advanced */
768 put_bits(&pbc, 3, level);
769 put_bits(&pbc, 1, 0); /* reserved */
770 /* VC1AdvDecSpecStruc */
771 put_bits(&pbc, 3, level);
772 put_bits(&pbc, 1, 0); /* cbr */
773 put_bits(&pbc, 6, 0); /* reserved */
774 put_bits(&pbc, 1, !interlace); /* no interlace */
775 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
776 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
777 put_bits(&pbc, 1, !slices); /* no slice code */
778 put_bits(&pbc, 1, 0); /* no bframe */
779 put_bits(&pbc, 1, 0); /* reserved */
782 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
783 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
785 put_bits32(&pbc, 0xffffffff);
787 flush_put_bits(&pbc);
794 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
796 uint8_t buf[7] = { 0 };
799 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
802 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
803 ffio_wfourcc(pb, "dvc1");
804 avio_write(pb, buf, sizeof(buf));
805 avio_write(pb, track->vos_data, track->vos_len);
810 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
812 avio_wb32(pb, track->vos_len + 8);
813 ffio_wfourcc(pb, "glbl");
814 avio_write(pb, track->vos_data, track->vos_len);
815 return 8 + track->vos_len;
819 * Compute flags for 'lpcm' tag.
820 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
822 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
825 case AV_CODEC_ID_PCM_F32BE:
826 case AV_CODEC_ID_PCM_F64BE:
828 case AV_CODEC_ID_PCM_F32LE:
829 case AV_CODEC_ID_PCM_F64LE:
831 case AV_CODEC_ID_PCM_U8:
833 case AV_CODEC_ID_PCM_S16BE:
834 case AV_CODEC_ID_PCM_S24BE:
835 case AV_CODEC_ID_PCM_S32BE:
837 case AV_CODEC_ID_PCM_S8:
838 case AV_CODEC_ID_PCM_S16LE:
839 case AV_CODEC_ID_PCM_S24LE:
840 case AV_CODEC_ID_PCM_S32LE:
847 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
851 if (cluster_idx >= track->entry)
854 if (cluster_idx + 1 == track->entry)
855 next_dts = track->track_duration + track->start_dts;
857 next_dts = track->cluster[cluster_idx + 1].dts;
859 next_dts -= track->cluster[cluster_idx].dts;
861 av_assert0(next_dts >= 0);
862 av_assert0(next_dts <= INT_MAX);
867 static int get_samples_per_packet(MOVTrack *track)
869 int i, first_duration;
871 // return track->enc->frame_size;
873 /* use 1 for raw PCM */
874 if (!track->audio_vbr)
877 /* check to see if duration is constant for all clusters */
880 first_duration = get_cluster_duration(track, 0);
881 for (i = 1; i < track->entry; i++) {
882 if (get_cluster_duration(track, i) != first_duration)
885 return first_duration;
888 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
890 int64_t pos = avio_tell(pb);
892 uint32_t tag = track->tag;
894 if (track->mode == MODE_MOV) {
895 if (track->timescale > UINT16_MAX) {
896 if (mov_get_lpcm_flags(track->enc->codec_id))
897 tag = AV_RL32("lpcm");
899 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
900 mov_pcm_be_gt16(track->enc->codec_id) ||
901 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
902 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
903 track->enc->codec_id == AV_CODEC_ID_QDM2) {
908 avio_wb32(pb, 0); /* size */
909 avio_wl32(pb, tag); // store it byteswapped
910 avio_wb32(pb, 0); /* Reserved */
911 avio_wb16(pb, 0); /* Reserved */
912 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
914 /* SoundDescription */
915 avio_wb16(pb, version); /* Version */
916 avio_wb16(pb, 0); /* Revision level */
917 avio_wb32(pb, 0); /* Reserved */
922 avio_wb16(pb, 0xfffe);
924 avio_wb32(pb, 0x00010000);
926 avio_wb64(pb, av_double2int(track->enc->sample_rate));
927 avio_wb32(pb, track->enc->channels);
928 avio_wb32(pb, 0x7F000000);
929 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
930 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
931 avio_wb32(pb, track->sample_size);
932 avio_wb32(pb, get_samples_per_packet(track));
934 if (track->mode == MODE_MOV) {
935 avio_wb16(pb, track->enc->channels);
936 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
937 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
938 avio_wb16(pb, 8); /* bits per sample */
939 else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
940 avio_wb16(pb, track->enc->bits_per_coded_sample);
943 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
944 } else { /* reserved for mp4/3gp */
950 avio_wb16(pb, 0); /* packet size (= 0) */
951 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
952 track->enc->sample_rate : 0);
953 avio_wb16(pb, 0); /* Reserved */
956 if (version == 1) { /* SoundDescription V1 extended info */
957 if (mov_pcm_le_gt16(track->enc->codec_id) ||
958 mov_pcm_be_gt16(track->enc->codec_id))
959 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
961 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
962 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
963 avio_wb32(pb, track->sample_size); /* Bytes per frame */
964 avio_wb32(pb, 2); /* Bytes per sample */
967 if (track->mode == MODE_MOV &&
968 (track->enc->codec_id == AV_CODEC_ID_AAC ||
969 track->enc->codec_id == AV_CODEC_ID_AC3 ||
970 track->enc->codec_id == AV_CODEC_ID_EAC3 ||
971 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
972 track->enc->codec_id == AV_CODEC_ID_ALAC ||
973 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
974 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
975 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
976 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
977 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
978 mov_write_wave_tag(pb, track);
979 else if (track->tag == MKTAG('m','p','4','a'))
980 mov_write_esds_tag(pb, track);
981 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
982 mov_write_amr_tag(pb, track);
983 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
984 mov_write_ac3_tag(pb, track);
985 else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
986 mov_write_eac3_tag(pb, track);
987 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
988 mov_write_extradata_tag(pb, track);
989 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
990 mov_write_wfex_tag(pb, track);
991 else if (track->vos_len > 0)
992 mov_write_glbl_tag(pb, track);
994 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
995 mov_write_chan_tag(pb, track);
997 return update_size(pb, pos);
1000 static int mov_write_d263_tag(AVIOContext *pb)
1002 avio_wb32(pb, 0xf); /* size */
1003 ffio_wfourcc(pb, "d263");
1004 ffio_wfourcc(pb, "FFMP");
1005 avio_w8(pb, 0); /* decoder version */
1006 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1007 avio_w8(pb, 0xa); /* level */
1008 avio_w8(pb, 0); /* profile */
1012 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1014 int64_t pos = avio_tell(pb);
1017 ffio_wfourcc(pb, "avcC");
1018 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1019 return update_size(pb, pos);
1022 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1024 int64_t pos = avio_tell(pb);
1027 ffio_wfourcc(pb, "hvcC");
1028 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1029 return update_size(pb, pos);
1032 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1033 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1036 avio_wb32(pb, 24); /* size */
1037 ffio_wfourcc(pb, "ACLR");
1038 ffio_wfourcc(pb, "ACLR");
1039 ffio_wfourcc(pb, "0001");
1040 if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1041 track->enc->color_range == AVCOL_RANGE_UNSPECIFIED) {
1042 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1043 } else { /* Full range (0-255) */
1044 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1046 avio_wb32(pb, 0); /* unknown */
1048 avio_wb32(pb, 24); /* size */
1049 ffio_wfourcc(pb, "APRG");
1050 ffio_wfourcc(pb, "APRG");
1051 ffio_wfourcc(pb, "0001");
1052 avio_wb32(pb, 1); /* unknown */
1053 avio_wb32(pb, 0); /* unknown */
1055 avio_wb32(pb, 120); /* size */
1056 ffio_wfourcc(pb, "ARES");
1057 ffio_wfourcc(pb, "ARES");
1058 ffio_wfourcc(pb, "0001");
1059 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
1060 avio_wb32(pb, track->enc->width);
1061 /* values below are based on samples created with quicktime and avid codecs */
1062 if (track->vos_data[5] & 2) { // interlaced
1063 avio_wb32(pb, track->enc->height / 2);
1064 avio_wb32(pb, 2); /* unknown */
1065 avio_wb32(pb, 0); /* unknown */
1066 avio_wb32(pb, 4); /* unknown */
1068 avio_wb32(pb, track->enc->height);
1069 avio_wb32(pb, 1); /* unknown */
1070 avio_wb32(pb, 0); /* unknown */
1071 if (track->enc->height == 1080)
1072 avio_wb32(pb, 5); /* unknown */
1074 avio_wb32(pb, 6); /* unknown */
1077 for (i = 0; i < 10; i++)
1080 /* extra padding for stsd needed */
1085 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1088 ffio_wfourcc(pb, "DpxE");
1089 if (track->enc->extradata_size >= 12 &&
1090 !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1091 avio_wb32(pb, track->enc->extradata[11]);
1098 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1100 int tag = track->enc->codec_tag;
1102 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1105 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1106 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1107 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1108 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1109 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1110 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1111 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1112 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1113 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1114 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1119 static const AVCodecTag codec_ipod_tags[] = {
1120 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1121 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1122 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1123 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1124 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1125 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1126 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1127 { AV_CODEC_ID_NONE, 0 },
1130 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1132 int tag = track->enc->codec_tag;
1134 // keep original tag for subs, ipod supports both formats
1135 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1136 (tag == MKTAG('t', 'x', '3', 'g') ||
1137 tag == MKTAG('t', 'e', 'x', 't'))))
1138 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1140 if (!av_match_ext(s->filename, "m4a") &&
1141 !av_match_ext(s->filename, "m4b") &&
1142 !av_match_ext(s->filename, "m4v"))
1143 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1144 "Quicktime/Ipod might not play the file\n");
1149 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1153 if (track->enc->width == 720) { /* SD */
1154 if (track->enc->height == 480) { /* NTSC */
1155 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1156 else tag = MKTAG('d','v','c',' ');
1157 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1158 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1159 else tag = MKTAG('d','v','p','p');
1160 } else if (track->enc->height == 720) { /* HD 720 line */
1161 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1162 else tag = MKTAG('d','v','h','p');
1163 } else if (track->enc->height == 1080) { /* HD 1080 line */
1164 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1165 else tag = MKTAG('d','v','h','6');
1167 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1174 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1176 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1177 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1178 if (av_timecode_check_frame_rate(rate) < 0) {
1179 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1180 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1181 rate = st->avg_frame_rate;
1187 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1189 int tag = track->enc->codec_tag;
1190 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1191 AVStream *st = track->st;
1192 int rate = av_q2d(find_fps(s, st));
1195 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1197 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1198 if (track->enc->width == 1280 && track->enc->height == 720) {
1200 if (rate == 24) tag = MKTAG('x','d','v','4');
1201 else if (rate == 25) tag = MKTAG('x','d','v','5');
1202 else if (rate == 30) tag = MKTAG('x','d','v','1');
1203 else if (rate == 50) tag = MKTAG('x','d','v','a');
1204 else if (rate == 60) tag = MKTAG('x','d','v','9');
1206 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1208 if (rate == 24) tag = MKTAG('x','d','v','6');
1209 else if (rate == 25) tag = MKTAG('x','d','v','7');
1210 else if (rate == 30) tag = MKTAG('x','d','v','8');
1212 if (rate == 25) tag = MKTAG('x','d','v','3');
1213 else if (rate == 30) tag = MKTAG('x','d','v','2');
1215 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1217 if (rate == 24) tag = MKTAG('x','d','v','d');
1218 else if (rate == 25) tag = MKTAG('x','d','v','e');
1219 else if (rate == 30) tag = MKTAG('x','d','v','f');
1221 if (rate == 25) tag = MKTAG('x','d','v','c');
1222 else if (rate == 30) tag = MKTAG('x','d','v','b');
1225 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1226 if (track->enc->width == 1280 && track->enc->height == 720) {
1228 if (rate == 24) tag = MKTAG('x','d','5','4');
1229 else if (rate == 25) tag = MKTAG('x','d','5','5');
1230 else if (rate == 30) tag = MKTAG('x','d','5','1');
1231 else if (rate == 50) tag = MKTAG('x','d','5','a');
1232 else if (rate == 60) tag = MKTAG('x','d','5','9');
1234 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1236 if (rate == 24) tag = MKTAG('x','d','5','d');
1237 else if (rate == 25) tag = MKTAG('x','d','5','e');
1238 else if (rate == 30) tag = MKTAG('x','d','5','f');
1240 if (rate == 25) tag = MKTAG('x','d','5','c');
1241 else if (rate == 30) tag = MKTAG('x','d','5','b');
1249 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1251 int tag = track->enc->codec_tag;
1252 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1253 AVStream *st = track->st;
1254 int rate = av_q2d(find_fps(s, st));
1257 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1259 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1260 if (track->enc->width == 960 && track->enc->height == 720) {
1262 if (rate == 24) tag = MKTAG('a','i','5','p');
1263 else if (rate == 25) tag = MKTAG('a','i','5','q');
1264 else if (rate == 30) tag = MKTAG('a','i','5','p');
1265 else if (rate == 50) tag = MKTAG('a','i','5','q');
1266 else if (rate == 60) tag = MKTAG('a','i','5','p');
1268 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1270 if (rate == 24) tag = MKTAG('a','i','5','3');
1271 else if (rate == 25) tag = MKTAG('a','i','5','2');
1272 else if (rate == 30) tag = MKTAG('a','i','5','3');
1274 if (rate == 50) tag = MKTAG('a','i','5','5');
1275 else if (rate == 60) tag = MKTAG('a','i','5','6');
1278 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1279 if (track->enc->width == 1280 && track->enc->height == 720) {
1281 if (rate == 24) tag = MKTAG('a','i','1','p');
1282 else if (rate == 25) tag = MKTAG('a','i','1','q');
1283 else if (rate == 30) tag = MKTAG('a','i','1','p');
1284 else if (rate == 50) tag = MKTAG('a','i','1','q');
1285 else if (rate == 60) tag = MKTAG('a','i','1','p');
1287 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1289 if (rate == 24) tag = MKTAG('a','i','1','3');
1290 else if (rate == 25) tag = MKTAG('a','i','1','2');
1291 else if (rate == 30) tag = MKTAG('a','i','1','3');
1293 if (rate == 25) tag = MKTAG('a','i','1','5');
1294 else if (rate == 50) tag = MKTAG('a','i','1','5');
1295 else if (rate == 60) tag = MKTAG('a','i','1','6');
1297 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1298 || track->enc->width == 3840 && track->enc->height == 2160
1299 || track->enc->width == 2048 && track->enc->height == 1080) {
1300 tag = MKTAG('a','i','v','x');
1307 static const struct {
1308 enum AVPixelFormat pix_fmt;
1311 } mov_pix_fmt_tags[] = {
1312 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1313 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1314 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1315 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1316 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1317 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1318 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1319 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1320 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1321 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1322 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1323 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1324 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1325 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1326 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1329 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1331 int tag = track->enc->codec_tag;
1333 enum AVPixelFormat pix_fmt;
1335 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1336 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1337 tag = mov_pix_fmt_tags[i].tag;
1338 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1339 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1344 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1345 track->enc->bits_per_coded_sample);
1346 if (tag == MKTAG('r','a','w',' ') &&
1347 track->enc->pix_fmt != pix_fmt &&
1348 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1349 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1350 av_get_pix_fmt_name(track->enc->pix_fmt));
1354 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1356 int tag = track->enc->codec_tag;
1358 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1359 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1360 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1361 track->enc->codec_id == AV_CODEC_ID_H263 ||
1362 track->enc->codec_id == AV_CODEC_ID_H264 ||
1363 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1364 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1365 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1366 tag = mov_get_dv_codec_tag(s, track);
1367 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1368 tag = mov_get_rawvideo_codec_tag(s, track);
1369 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1370 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1371 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1372 tag = mov_get_h264_codec_tag(s, track);
1373 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1374 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1375 if (!tag) { // if no mac fcc found, try with Microsoft tags
1376 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1378 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1379 "the file may be unplayable!\n");
1381 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1382 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1383 if (!tag) { // if no mac fcc found, try with Microsoft tags
1384 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1386 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1387 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1388 "the file may be unplayable!\n");
1391 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1392 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1398 static const AVCodecTag codec_3gp_tags[] = {
1399 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1400 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1401 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1402 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1403 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1404 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1405 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1406 { AV_CODEC_ID_NONE, 0 },
1409 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1410 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1411 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1412 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1413 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1414 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1415 { AV_CODEC_ID_NONE, 0 },
1418 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1422 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1423 tag = mp4_get_codec_tag(s, track);
1424 else if (track->mode == MODE_ISM) {
1425 tag = mp4_get_codec_tag(s, track);
1426 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1427 tag = MKTAG('w', 'm', 'a', ' ');
1428 } else if (track->mode == MODE_IPOD)
1429 tag = ipod_get_codec_tag(s, track);
1430 else if (track->mode & MODE_3GP)
1431 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1432 else if (track->mode == MODE_F4V)
1433 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1435 tag = mov_get_codec_tag(s, track);
1440 /** Write uuid atom.
1441 * Needed to make file play in iPods running newest firmware
1442 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1444 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1447 ffio_wfourcc(pb, "uuid");
1448 avio_wb32(pb, 0x6b6840f2);
1449 avio_wb32(pb, 0x5f244fc5);
1450 avio_wb32(pb, 0xba39a51b);
1451 avio_wb32(pb, 0xcf0323f3);
1456 static const uint16_t fiel_data[] = {
1457 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1460 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1462 unsigned mov_field_order = 0;
1463 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1464 mov_field_order = fiel_data[track->enc->field_order];
1468 ffio_wfourcc(pb, "fiel");
1469 avio_wb16(pb, mov_field_order);
1473 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1475 int64_t pos = avio_tell(pb);
1476 avio_wb32(pb, 0); /* size */
1477 avio_wl32(pb, track->tag); // store it byteswapped
1478 avio_wb32(pb, 0); /* Reserved */
1479 avio_wb16(pb, 0); /* Reserved */
1480 avio_wb16(pb, 1); /* Data-reference index */
1482 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1483 mov_write_esds_tag(pb, track);
1484 else if (track->enc->extradata_size)
1485 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1487 return update_size(pb, pos);
1490 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1493 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1494 track->enc->sample_aspect_ratio.den, INT_MAX);
1497 ffio_wfourcc(pb, "pasp");
1498 avio_wb32(pb, sar.num);
1499 avio_wb32(pb, sar.den);
1503 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1505 // Ref: https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1507 if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1508 track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1509 track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1510 if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1511 || (track->enc->width == 1280 && track->enc->height == 720)) {
1512 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1513 track->enc->color_primaries = AVCOL_PRI_BT709;
1514 } else if (track->enc->width == 720 && track->height == 576) {
1515 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1516 track->enc->color_primaries = AVCOL_PRI_BT470BG;
1517 } else if (track->enc->width == 720 &&
1518 (track->height == 486 || track->height == 480)) {
1519 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1520 track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
1522 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1524 switch (track->enc->color_primaries) {
1525 case AVCOL_PRI_BT709:
1526 track->enc->color_trc = AVCOL_TRC_BT709;
1527 track->enc->colorspace = AVCOL_SPC_BT709;
1529 case AVCOL_PRI_SMPTE170M:
1530 case AVCOL_PRI_BT470BG:
1531 track->enc->color_trc = AVCOL_TRC_BT709;
1532 track->enc->colorspace = AVCOL_SPC_SMPTE170M;
1538 ffio_wfourcc(pb, "colr");
1539 ffio_wfourcc(pb, "nclc");
1540 switch (track->enc->color_primaries) {
1541 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1542 case AVCOL_PRI_SMPTE170M:
1543 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1544 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1545 default: avio_wb16(pb, 2);
1547 switch (track->enc->color_trc) {
1548 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1549 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1550 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1551 default: avio_wb16(pb, 2);
1553 switch (track->enc->colorspace) {
1554 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1555 case AVCOL_PRI_SMPTE170M: avio_wb16(pb, 6); break;
1556 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 7); break;
1557 default: avio_wb16(pb, 2);
1563 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1565 AVDictionaryEntry *encoder;
1566 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1567 || (track->enc->width == 1440 && track->enc->height == 1080)
1568 || (track->enc->width == 1920 && track->enc->height == 1080);
1570 if (track->mode == MODE_MOV &&
1571 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1572 av_strlcpy(compressor_name, encoder->value, 32);
1573 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1574 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1575 AVStream *st = track->st;
1576 int rate = av_q2d(find_fps(NULL, st));
1577 av_strlcatf(compressor_name, len, "XDCAM");
1578 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1579 av_strlcatf(compressor_name, len, " HD422");
1580 } else if(track->enc->width == 1440) {
1581 av_strlcatf(compressor_name, len, " HD");
1583 av_strlcatf(compressor_name, len, " EX");
1585 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1587 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1591 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1593 int64_t pos = avio_tell(pb);
1594 char compressor_name[32] = { 0 };
1596 avio_wb32(pb, 0); /* size */
1597 avio_wl32(pb, track->tag); // store it byteswapped
1598 avio_wb32(pb, 0); /* Reserved */
1599 avio_wb16(pb, 0); /* Reserved */
1600 avio_wb16(pb, 1); /* Data-reference index */
1602 avio_wb16(pb, 0); /* Codec stream version */
1603 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1604 if (track->mode == MODE_MOV) {
1605 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1606 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1607 avio_wb32(pb, 0); /* Temporal Quality */
1608 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1610 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1611 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1614 avio_wb32(pb, 0); /* Reserved */
1615 avio_wb32(pb, 0); /* Reserved */
1616 avio_wb32(pb, 0); /* Reserved */
1618 avio_wb16(pb, track->enc->width); /* Video width */
1619 avio_wb16(pb, track->height); /* Video height */
1620 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1621 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1622 avio_wb32(pb, 0); /* Data size (= 0) */
1623 avio_wb16(pb, 1); /* Frame count (= 1) */
1625 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1626 find_compressor(compressor_name, 32, track);
1627 avio_w8(pb, strlen(compressor_name));
1628 avio_write(pb, compressor_name, 31);
1630 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1631 avio_wb16(pb, track->enc->bits_per_coded_sample);
1633 avio_wb16(pb, 0x18); /* Reserved */
1634 avio_wb16(pb, 0xffff); /* Reserved */
1635 if (track->tag == MKTAG('m','p','4','v'))
1636 mov_write_esds_tag(pb, track);
1637 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1638 mov_write_d263_tag(pb);
1639 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1640 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1641 mov_write_extradata_tag(pb, track);
1643 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1644 mov_write_avid_tag(pb, track);
1645 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1646 mov_write_hvcc_tag(pb, track);
1647 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1648 mov_write_avcc_tag(pb, track);
1649 if (track->mode == MODE_IPOD)
1650 mov_write_uuid_tag_ipod(pb);
1651 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1652 mov_write_dvc1_tag(pb, track);
1653 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1654 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1655 /* Don't write any potential extradata here - the cropping
1656 * is signalled via the normal width/height fields. */
1657 } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1658 if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1659 mov_write_dpxe_tag(pb, track);
1660 } else if (track->vos_len > 0)
1661 mov_write_glbl_tag(pb, track);
1663 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1664 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1665 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1666 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1667 mov_write_fiel_tag(pb, track);
1669 if (mov->flags & FF_MOV_FLAG_WRITE_COLR)
1670 mov_write_colr_tag(pb, track);
1672 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1673 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1674 mov_write_pasp_tag(pb, track);
1677 return update_size(pb, pos);
1680 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1682 int64_t pos = avio_tell(pb);
1683 avio_wb32(pb, 0); /* size */
1684 ffio_wfourcc(pb, "rtp ");
1685 avio_wb32(pb, 0); /* Reserved */
1686 avio_wb16(pb, 0); /* Reserved */
1687 avio_wb16(pb, 1); /* Data-reference index */
1689 avio_wb16(pb, 1); /* Hint track version */
1690 avio_wb16(pb, 1); /* Highest compatible version */
1691 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1693 avio_wb32(pb, 12); /* size */
1694 ffio_wfourcc(pb, "tims");
1695 avio_wb32(pb, track->timescale);
1697 return update_size(pb, pos);
1700 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1702 uint64_t str_size =strlen(reel_name);
1703 int64_t pos = avio_tell(pb);
1705 if (str_size >= UINT16_MAX){
1706 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1708 return AVERROR(EINVAL);
1711 avio_wb32(pb, 0); /* size */
1712 ffio_wfourcc(pb, "name"); /* Data format */
1713 avio_wb16(pb, str_size); /* string size */
1714 avio_wb16(pb, track->language); /* langcode */
1715 avio_write(pb, reel_name, str_size); /* reel name */
1716 return update_size(pb,pos);
1719 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1721 int64_t pos = avio_tell(pb);
1723 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1724 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1725 AVDictionaryEntry *t = NULL;
1727 if (nb_frames > 255) {
1728 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1729 return AVERROR(EINVAL);
1732 avio_wb32(pb, 0); /* size */
1733 ffio_wfourcc(pb, "tmcd"); /* Data format */
1734 avio_wb32(pb, 0); /* Reserved */
1735 avio_wb32(pb, 1); /* Data reference index */
1736 avio_wb32(pb, 0); /* Flags */
1737 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1738 avio_wb32(pb, track->timescale); /* Timescale */
1739 avio_wb32(pb, frame_duration); /* Frame duration */
1740 avio_w8(pb, nb_frames); /* Number of frames */
1741 avio_w8(pb, 0); /* Reserved */
1744 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1746 if (t && utf8len(t->value))
1747 mov_write_source_reference_tag(pb, track, t->value);
1749 avio_wb16(pb, 0); /* zero size */
1752 avio_wb32(pb, 0); /* size */
1753 ffio_wfourcc(pb, "tmcd"); /* Data format */
1754 avio_wb32(pb, 0); /* Reserved */
1755 avio_wb32(pb, 1); /* Data reference index */
1756 if (track->enc->extradata_size)
1757 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1759 return update_size(pb, pos);
1762 static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1764 int64_t pos = avio_tell(pb);
1765 avio_wb32(pb, 0); /* size */
1766 ffio_wfourcc(pb, "stsd");
1767 avio_wb32(pb, 0); /* version & flags */
1768 avio_wb32(pb, 1); /* entry count */
1769 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1770 mov_write_video_tag(pb, mov, track);
1771 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1772 mov_write_audio_tag(pb, track);
1773 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1774 mov_write_subtitle_tag(pb, track);
1775 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1776 mov_write_rtp_tag(pb, track);
1777 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1778 mov_write_tmcd_tag(pb, track);
1779 return update_size(pb, pos);
1782 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1784 MOVStts *ctts_entries;
1785 uint32_t entries = 0;
1789 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1791 return AVERROR(ENOMEM);
1792 ctts_entries[0].count = 1;
1793 ctts_entries[0].duration = track->cluster[0].cts;
1794 for (i = 1; i < track->entry; i++) {
1795 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1796 ctts_entries[entries].count++; /* compress */
1799 ctts_entries[entries].duration = track->cluster[i].cts;
1800 ctts_entries[entries].count = 1;
1803 entries++; /* last one */
1804 atom_size = 16 + (entries * 8);
1805 avio_wb32(pb, atom_size); /* size */
1806 ffio_wfourcc(pb, "ctts");
1807 avio_wb32(pb, 0); /* version & flags */
1808 avio_wb32(pb, entries); /* entry count */
1809 for (i = 0; i < entries; i++) {
1810 avio_wb32(pb, ctts_entries[i].count);
1811 avio_wb32(pb, ctts_entries[i].duration);
1813 av_free(ctts_entries);
1817 /* Time to sample atom */
1818 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1820 MOVStts *stts_entries;
1821 uint32_t entries = -1;
1825 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1826 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1827 stts_entries[0].count = track->sample_count;
1828 stts_entries[0].duration = 1;
1831 stts_entries = track->entry ?
1832 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1834 for (i = 0; i < track->entry; i++) {
1835 int duration = get_cluster_duration(track, i);
1836 if (i && duration == stts_entries[entries].duration) {
1837 stts_entries[entries].count++; /* compress */
1840 stts_entries[entries].duration = duration;
1841 stts_entries[entries].count = 1;
1844 entries++; /* last one */
1846 atom_size = 16 + (entries * 8);
1847 avio_wb32(pb, atom_size); /* size */
1848 ffio_wfourcc(pb, "stts");
1849 avio_wb32(pb, 0); /* version & flags */
1850 avio_wb32(pb, entries); /* entry count */
1851 for (i = 0; i < entries; i++) {
1852 avio_wb32(pb, stts_entries[i].count);
1853 avio_wb32(pb, stts_entries[i].duration);
1855 av_free(stts_entries);
1859 static int mov_write_dref_tag(AVIOContext *pb)
1861 avio_wb32(pb, 28); /* size */
1862 ffio_wfourcc(pb, "dref");
1863 avio_wb32(pb, 0); /* version & flags */
1864 avio_wb32(pb, 1); /* entry count */
1866 avio_wb32(pb, 0xc); /* size */
1867 //FIXME add the alis and rsrc atom
1868 ffio_wfourcc(pb, "url ");
1869 avio_wb32(pb, 1); /* version & flags */
1874 static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1876 int64_t pos = avio_tell(pb);
1879 avio_wb32(pb, 0); /* size */
1880 ffio_wfourcc(pb, "stbl");
1881 mov_write_stsd_tag(pb, mov, track);
1882 mov_write_stts_tag(pb, track);
1883 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1884 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1885 track->has_keyframes && track->has_keyframes < track->entry)
1886 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1887 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1888 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1889 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1890 track->flags & MOV_TRACK_CTTS && track->entry) {
1892 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1895 mov_write_stsc_tag(pb, track);
1896 mov_write_stsz_tag(pb, track);
1897 mov_write_stco_tag(pb, track);
1898 return update_size(pb, pos);
1901 static int mov_write_dinf_tag(AVIOContext *pb)
1903 int64_t pos = avio_tell(pb);
1904 avio_wb32(pb, 0); /* size */
1905 ffio_wfourcc(pb, "dinf");
1906 mov_write_dref_tag(pb);
1907 return update_size(pb, pos);
1910 static int mov_write_nmhd_tag(AVIOContext *pb)
1913 ffio_wfourcc(pb, "nmhd");
1918 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1920 int64_t pos = avio_tell(pb);
1921 const char *font = "Lucida Grande";
1922 avio_wb32(pb, 0); /* size */
1923 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1924 avio_wb32(pb, 0); /* version & flags */
1925 avio_wb16(pb, 0); /* text font */
1926 avio_wb16(pb, 0); /* text face */
1927 avio_wb16(pb, 12); /* text size */
1928 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1929 avio_wb16(pb, 0x0000); /* text color (red) */
1930 avio_wb16(pb, 0x0000); /* text color (green) */
1931 avio_wb16(pb, 0x0000); /* text color (blue) */
1932 avio_wb16(pb, 0xffff); /* background color (red) */
1933 avio_wb16(pb, 0xffff); /* background color (green) */
1934 avio_wb16(pb, 0xffff); /* background color (blue) */
1935 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1936 avio_write(pb, font, strlen(font)); /* font name */
1937 return update_size(pb, pos);
1940 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1942 int64_t pos = avio_tell(pb);
1943 avio_wb32(pb, 0); /* size */
1944 ffio_wfourcc(pb, "gmhd");
1945 avio_wb32(pb, 0x18); /* gmin size */
1946 ffio_wfourcc(pb, "gmin");/* generic media info */
1947 avio_wb32(pb, 0); /* version & flags */
1948 avio_wb16(pb, 0x40); /* graphics mode = */
1949 avio_wb16(pb, 0x8000); /* opColor (r?) */
1950 avio_wb16(pb, 0x8000); /* opColor (g?) */
1951 avio_wb16(pb, 0x8000); /* opColor (b?) */
1952 avio_wb16(pb, 0); /* balance */
1953 avio_wb16(pb, 0); /* reserved */
1956 * This special text atom is required for
1957 * Apple Quicktime chapters. The contents
1958 * don't appear to be documented, so the
1959 * bytes are copied verbatim.
1961 if (track->tag != MKTAG('c','6','0','8')) {
1962 avio_wb32(pb, 0x2C); /* size */
1963 ffio_wfourcc(pb, "text");
1964 avio_wb16(pb, 0x01);
1965 avio_wb32(pb, 0x00);
1966 avio_wb32(pb, 0x00);
1967 avio_wb32(pb, 0x00);
1968 avio_wb32(pb, 0x01);
1969 avio_wb32(pb, 0x00);
1970 avio_wb32(pb, 0x00);
1971 avio_wb32(pb, 0x00);
1972 avio_wb32(pb, 0x00004000);
1973 avio_wb16(pb, 0x0000);
1976 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1977 int64_t tmcd_pos = avio_tell(pb);
1978 avio_wb32(pb, 0); /* size */
1979 ffio_wfourcc(pb, "tmcd");
1980 mov_write_tcmi_tag(pb, track);
1981 update_size(pb, tmcd_pos);
1983 return update_size(pb, pos);
1986 static int mov_write_smhd_tag(AVIOContext *pb)
1988 avio_wb32(pb, 16); /* size */
1989 ffio_wfourcc(pb, "smhd");
1990 avio_wb32(pb, 0); /* version & flags */
1991 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1992 avio_wb16(pb, 0); /* reserved */
1996 static int mov_write_vmhd_tag(AVIOContext *pb)
1998 avio_wb32(pb, 0x14); /* size (always 0x14) */
1999 ffio_wfourcc(pb, "vmhd");
2000 avio_wb32(pb, 0x01); /* version & flags */
2001 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2005 static int is_clcp_track(MOVTrack *track)
2007 return track->tag == MKTAG('c','7','0','8') ||
2008 track->tag == MKTAG('c','6','0','8');
2011 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2013 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2014 int64_t pos = avio_tell(pb);
2018 descr = "DataHandler";
2021 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2022 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2024 descr = "VideoHandler";
2025 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2027 descr = "SoundHandler";
2028 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2029 if (is_clcp_track(track)) {
2031 descr = "ClosedCaptionHandler";
2033 if (track->tag == MKTAG('t','x','3','g')) {
2035 } else if (track->tag == MKTAG('m','p','4','s')) {
2040 descr = "SubtitleHandler";
2042 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2044 descr = "HintHandler";
2045 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2047 descr = "TimeCodeHandler";
2050 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2051 track->enc->codec_tag);
2053 av_log(track->enc, AV_LOG_WARNING,
2054 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2055 tag_buf, track->enc->codec_tag);
2058 // hdlr.name is used by some players to identify the content title
2059 // of the track. So if an alternate handler description is
2060 // specified, use it.
2061 AVDictionaryEntry *t;
2062 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2063 if (t && utf8len(t->value))
2068 avio_wb32(pb, 0); /* size */
2069 ffio_wfourcc(pb, "hdlr");
2070 avio_wb32(pb, 0); /* Version & flags */
2071 avio_write(pb, hdlr, 4); /* handler */
2072 ffio_wfourcc(pb, hdlr_type); /* handler type */
2073 avio_wb32(pb, 0); /* reserved */
2074 avio_wb32(pb, 0); /* reserved */
2075 avio_wb32(pb, 0); /* reserved */
2076 if (!track || track->mode == MODE_MOV)
2077 avio_w8(pb, strlen(descr)); /* pascal string */
2078 avio_write(pb, descr, strlen(descr)); /* handler description */
2079 if (track && track->mode != MODE_MOV)
2080 avio_w8(pb, 0); /* c string */
2081 return update_size(pb, pos);
2084 static int mov_write_hmhd_tag(AVIOContext *pb)
2086 /* This atom must be present, but leaving the values at zero
2087 * seems harmless. */
2088 avio_wb32(pb, 28); /* size */
2089 ffio_wfourcc(pb, "hmhd");
2090 avio_wb32(pb, 0); /* version, flags */
2091 avio_wb16(pb, 0); /* maxPDUsize */
2092 avio_wb16(pb, 0); /* avgPDUsize */
2093 avio_wb32(pb, 0); /* maxbitrate */
2094 avio_wb32(pb, 0); /* avgbitrate */
2095 avio_wb32(pb, 0); /* reserved */
2099 static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2101 int64_t pos = avio_tell(pb);
2104 avio_wb32(pb, 0); /* size */
2105 ffio_wfourcc(pb, "minf");
2106 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2107 mov_write_vmhd_tag(pb);
2108 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2109 mov_write_smhd_tag(pb);
2110 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2111 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2112 mov_write_gmhd_tag(pb, track);
2114 mov_write_nmhd_tag(pb);
2116 } else if (track->tag == MKTAG('r','t','p',' ')) {
2117 mov_write_hmhd_tag(pb);
2118 } else if (track->tag == MKTAG('t','m','c','d')) {
2119 mov_write_gmhd_tag(pb, track);
2121 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2122 mov_write_hdlr_tag(pb, NULL);
2123 mov_write_dinf_tag(pb);
2124 if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2126 return update_size(pb, pos);
2129 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2132 int version = track->track_duration < INT32_MAX ? 0 : 1;
2134 if (track->mode == MODE_ISM)
2137 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2138 ffio_wfourcc(pb, "mdhd");
2139 avio_w8(pb, version);
2140 avio_wb24(pb, 0); /* flags */
2142 avio_wb64(pb, track->time);
2143 avio_wb64(pb, track->time);
2145 avio_wb32(pb, track->time); /* creation time */
2146 avio_wb32(pb, track->time); /* modification time */
2148 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2149 if (!track->entry && mov->mode == MODE_ISM)
2150 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2151 else if (!track->entry)
2152 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2154 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2155 avio_wb16(pb, track->language); /* language */
2156 avio_wb16(pb, 0); /* reserved (quality) */
2158 if (version != 0 && track->mode == MODE_MOV) {
2159 av_log(NULL, AV_LOG_ERROR,
2160 "FATAL error, file duration too long for timebase, this file will not be\n"
2161 "playable with quicktime. Choose a different timebase or a different\n"
2162 "container format\n");
2168 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2171 int64_t pos = avio_tell(pb);
2174 avio_wb32(pb, 0); /* size */
2175 ffio_wfourcc(pb, "mdia");
2176 mov_write_mdhd_tag(pb, mov, track);
2177 mov_write_hdlr_tag(pb, track);
2178 if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2180 return update_size(pb, pos);
2183 /* transformation matrix
2187 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2188 int16_t d, int16_t tx, int16_t ty)
2190 avio_wb32(pb, a << 16); /* 16.16 format */
2191 avio_wb32(pb, b << 16); /* 16.16 format */
2192 avio_wb32(pb, 0); /* u in 2.30 format */
2193 avio_wb32(pb, c << 16); /* 16.16 format */
2194 avio_wb32(pb, d << 16); /* 16.16 format */
2195 avio_wb32(pb, 0); /* v in 2.30 format */
2196 avio_wb32(pb, tx << 16); /* 16.16 format */
2197 avio_wb32(pb, ty << 16); /* 16.16 format */
2198 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2201 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2202 MOVTrack *track, AVStream *st)
2204 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2205 track->timescale, AV_ROUND_UP);
2206 int version = duration < INT32_MAX ? 0 : 1;
2207 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2213 if (mov->per_stream_grouping)
2216 group = st->codec->codec_type;
2219 if (track->flags & MOV_TRACK_ENABLED)
2220 flags |= MOV_TKHD_FLAG_ENABLED;
2222 if (track->mode == MODE_ISM)
2225 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2226 ffio_wfourcc(pb, "tkhd");
2227 avio_w8(pb, version);
2228 avio_wb24(pb, flags);
2230 avio_wb64(pb, track->time);
2231 avio_wb64(pb, track->time);
2233 avio_wb32(pb, track->time); /* creation time */
2234 avio_wb32(pb, track->time); /* modification time */
2236 avio_wb32(pb, track->track_id); /* track-id */
2237 avio_wb32(pb, 0); /* reserved */
2238 if (!track->entry && mov->mode == MODE_ISM)
2239 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2240 else if (!track->entry)
2241 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2243 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2245 avio_wb32(pb, 0); /* reserved */
2246 avio_wb32(pb, 0); /* reserved */
2247 avio_wb16(pb, 0); /* layer */
2248 avio_wb16(pb, group); /* alternate group) */
2249 /* Volume, only for audio */
2250 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2251 avio_wb16(pb, 0x0100);
2254 avio_wb16(pb, 0); /* reserved */
2256 /* Matrix structure */
2257 if (st && st->metadata) {
2258 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2259 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2261 if (rotation == 90) {
2262 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2263 } else if (rotation == 180) {
2264 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2265 } else if (rotation == 270) {
2266 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2268 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2270 /* Track width and height, for visual only */
2271 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2272 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2273 if (track->mode == MODE_MOV) {
2274 avio_wb32(pb, track->enc->width << 16);
2275 avio_wb32(pb, track->height << 16);
2277 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2278 if (!sample_aspect_ratio || track->height != track->enc->height)
2279 sample_aspect_ratio = 1;
2280 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2281 avio_wb32(pb, track->height * 0x10000);
2290 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2292 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2293 track->enc->sample_aspect_ratio.den);
2295 int64_t pos = avio_tell(pb);
2297 avio_wb32(pb, 0); /* size */
2298 ffio_wfourcc(pb, "tapt");
2301 ffio_wfourcc(pb, "clef");
2303 avio_wb32(pb, width << 16);
2304 avio_wb32(pb, track->enc->height << 16);
2307 ffio_wfourcc(pb, "prof");
2309 avio_wb32(pb, width << 16);
2310 avio_wb32(pb, track->enc->height << 16);
2313 ffio_wfourcc(pb, "enof");
2315 avio_wb32(pb, track->enc->width << 16);
2316 avio_wb32(pb, track->enc->height << 16);
2318 return update_size(pb, pos);
2321 // This box seems important for the psp playback ... without it the movie seems to hang
2322 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2325 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2326 track->timescale, AV_ROUND_UP);
2327 int version = duration < INT32_MAX ? 0 : 1;
2328 int entry_size, entry_count, size;
2329 int64_t delay, start_ct = track->start_cts;
2330 int64_t start_dts = track->start_dts;
2333 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2335 av_log(mov->fc, AV_LOG_DEBUG,
2336 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2337 track->cluster[0].dts, track->cluster[0].cts,
2338 start_dts, start_ct, track->track_id);
2339 start_dts = track->cluster[0].dts;
2340 start_ct = track->cluster[0].cts;
2344 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2345 track->timescale, AV_ROUND_DOWN);
2346 version |= delay < INT32_MAX ? 0 : 1;
2348 entry_size = (version == 1) ? 20 : 12;
2349 entry_count = 1 + (delay > 0);
2350 size = 24 + entry_count * entry_size;
2352 /* write the atom data */
2353 avio_wb32(pb, size);
2354 ffio_wfourcc(pb, "edts");
2355 avio_wb32(pb, size - 8);
2356 ffio_wfourcc(pb, "elst");
2357 avio_w8(pb, version);
2358 avio_wb24(pb, 0); /* flags */
2360 avio_wb32(pb, entry_count);
2361 if (delay > 0) { /* add an empty edit to delay presentation */
2362 /* In the positive delay case, the delay includes the cts
2363 * offset, and the second edit list entry below trims out
2364 * the same amount from the actual content. This makes sure
2365 * that the offsetted last sample is included in the edit
2366 * list duration as well. */
2368 avio_wb64(pb, delay);
2371 avio_wb32(pb, delay);
2374 avio_wb32(pb, 0x00010000);
2376 /* Avoid accidentally ending up with start_ct = -1 which has got a
2377 * special meaning. Normally start_ct should end up positive or zero
2378 * here, but use FFMIN in case dts is a a small positive integer
2379 * rounded to 0 when represented in MOV_TIMESCALE units. */
2380 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2381 start_ct = -FFMIN(start_dts, 0);
2382 /* Note, this delay is calculated from the pts of the first sample,
2383 * ensuring that we don't reduce the duration for cases with
2388 /* For fragmented files, we don't know the full length yet. Setting
2389 * duration to 0 allows us to only specify the offset, including
2390 * the rest of the content (from all future fragments) without specifying
2391 * an explicit duration. */
2392 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2397 avio_wb64(pb, duration);
2398 avio_wb64(pb, start_ct);
2400 avio_wb32(pb, duration);
2401 avio_wb32(pb, start_ct);
2403 avio_wb32(pb, 0x00010000);
2407 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2409 avio_wb32(pb, 20); // size
2410 ffio_wfourcc(pb, "tref");
2411 avio_wb32(pb, 12); // size (subatom)
2412 avio_wl32(pb, track->tref_tag);
2413 avio_wb32(pb, track->tref_id);
2417 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2418 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2420 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2421 ffio_wfourcc(pb, "uuid");
2422 ffio_wfourcc(pb, "USMT");
2423 avio_wb32(pb, 0x21d24fce);
2424 avio_wb32(pb, 0xbb88695c);
2425 avio_wb32(pb, 0xfac9c740);
2426 avio_wb32(pb, 0x1c); // another size here!
2427 ffio_wfourcc(pb, "MTDT");
2428 avio_wb32(pb, 0x00010012);
2429 avio_wb32(pb, 0x0a);
2430 avio_wb32(pb, 0x55c40000);
2436 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2438 AVFormatContext *ctx = track->rtp_ctx;
2439 char buf[1000] = "";
2442 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2443 NULL, NULL, 0, 0, ctx);
2444 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2447 avio_wb32(pb, len + 24);
2448 ffio_wfourcc(pb, "udta");
2449 avio_wb32(pb, len + 16);
2450 ffio_wfourcc(pb, "hnti");
2451 avio_wb32(pb, len + 8);
2452 ffio_wfourcc(pb, "sdp ");
2453 avio_write(pb, buf, len);
2457 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2458 const char *tag, const char *str)
2460 int64_t pos = avio_tell(pb);
2461 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2462 if (!t || !utf8len(t->value))
2465 avio_wb32(pb, 0); /* size */
2466 ffio_wfourcc(pb, tag); /* type */
2467 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2468 return update_size(pb, pos);
2471 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2474 AVIOContext *pb_buf;
2478 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2481 ret = avio_open_dyn_buf(&pb_buf);
2485 if (mov->mode & MODE_MP4)
2486 mov_write_track_metadata(pb_buf, st, "name", "title");
2488 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2489 avio_wb32(pb, size + 8);
2490 ffio_wfourcc(pb, "udta");
2491 avio_write(pb, buf, size);
2498 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2499 MOVTrack *track, AVStream *st)
2501 int64_t pos = avio_tell(pb);
2502 int entry_backup = track->entry;
2503 int chunk_backup = track->chunkCount;
2506 /* If we want to have an empty moov, but some samples already have been
2507 * buffered (delay_moov), pretend that no samples have been written yet. */
2508 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2509 track->chunkCount = track->entry = 0;
2511 avio_wb32(pb, 0); /* size */
2512 ffio_wfourcc(pb, "trak");
2513 mov_write_tkhd_tag(pb, mov, track, st);
2515 av_assert2(mov->use_editlist >= 0);
2517 if (track->start_dts != AV_NOPTS_VALUE) {
2518 if (mov->use_editlist)
2519 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2520 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2521 av_log(mov->fc, AV_LOG_WARNING,
2522 "Not writing any edit list even though one would have been required\n");
2525 if (track->tref_tag)
2526 mov_write_tref_tag(pb, track);
2528 if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2530 if (track->mode == MODE_PSP)
2531 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2532 if (track->tag == MKTAG('r','t','p',' '))
2533 mov_write_udta_sdp(pb, track);
2534 if (track->mode == MODE_MOV) {
2535 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2536 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2537 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2538 mov_write_tapt_tag(pb, track);
2541 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2542 mov_write_tapt_tag(pb, track);
2545 mov_write_track_udta_tag(pb, mov, st);
2546 track->entry = entry_backup;
2547 track->chunkCount = chunk_backup;
2548 return update_size(pb, pos);
2551 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2553 int i, has_audio = 0, has_video = 0;
2554 int64_t pos = avio_tell(pb);
2555 int audio_profile = mov->iods_audio_profile;
2556 int video_profile = mov->iods_video_profile;
2557 for (i = 0; i < mov->nb_streams; i++) {
2558 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2559 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2560 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2563 if (audio_profile < 0)
2564 audio_profile = 0xFF - has_audio;
2565 if (video_profile < 0)
2566 video_profile = 0xFF - has_video;
2567 avio_wb32(pb, 0x0); /* size */
2568 ffio_wfourcc(pb, "iods");
2569 avio_wb32(pb, 0); /* version & flags */
2570 put_descr(pb, 0x10, 7);
2571 avio_wb16(pb, 0x004f);
2574 avio_w8(pb, audio_profile);
2575 avio_w8(pb, video_profile);
2577 return update_size(pb, pos);
2580 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2582 avio_wb32(pb, 0x20); /* size */
2583 ffio_wfourcc(pb, "trex");
2584 avio_wb32(pb, 0); /* version & flags */
2585 avio_wb32(pb, track->track_id); /* track ID */
2586 avio_wb32(pb, 1); /* default sample description index */
2587 avio_wb32(pb, 0); /* default sample duration */
2588 avio_wb32(pb, 0); /* default sample size */
2589 avio_wb32(pb, 0); /* default sample flags */
2593 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2595 int64_t pos = avio_tell(pb);
2597 avio_wb32(pb, 0x0); /* size */
2598 ffio_wfourcc(pb, "mvex");
2599 for (i = 0; i < mov->nb_streams; i++)
2600 mov_write_trex_tag(pb, &mov->tracks[i]);
2601 return update_size(pb, pos);
2604 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2606 int max_track_id = 1, i;
2607 int64_t max_track_len = 0;
2610 for (i = 0; i < mov->nb_streams; i++) {
2611 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2612 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2614 mov->tracks[i].timescale,
2616 if (max_track_len < max_track_len_temp)
2617 max_track_len = max_track_len_temp;
2618 if (max_track_id < mov->tracks[i].track_id)
2619 max_track_id = mov->tracks[i].track_id;
2622 /* If using delay_moov, make sure the output is the same as if no
2623 * samples had been written yet. */
2624 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2629 version = max_track_len < UINT32_MAX ? 0 : 1;
2630 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2632 ffio_wfourcc(pb, "mvhd");
2633 avio_w8(pb, version);
2634 avio_wb24(pb, 0); /* flags */
2636 avio_wb64(pb, mov->time);
2637 avio_wb64(pb, mov->time);
2639 avio_wb32(pb, mov->time); /* creation time */
2640 avio_wb32(pb, mov->time); /* modification time */
2642 avio_wb32(pb, MOV_TIMESCALE);
2643 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2645 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2646 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2647 avio_wb16(pb, 0); /* reserved */
2648 avio_wb32(pb, 0); /* reserved */
2649 avio_wb32(pb, 0); /* reserved */
2651 /* Matrix structure */
2652 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2654 avio_wb32(pb, 0); /* reserved (preview time) */
2655 avio_wb32(pb, 0); /* reserved (preview duration) */
2656 avio_wb32(pb, 0); /* reserved (poster time) */
2657 avio_wb32(pb, 0); /* reserved (selection time) */
2658 avio_wb32(pb, 0); /* reserved (selection duration) */
2659 avio_wb32(pb, 0); /* reserved (current time) */
2660 avio_wb32(pb, max_track_id + 1); /* Next track id */
2664 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2667 avio_wb32(pb, 33); /* size */
2668 ffio_wfourcc(pb, "hdlr");
2671 ffio_wfourcc(pb, "mdir");
2672 ffio_wfourcc(pb, "appl");
2679 /* helper function to write a data tag with the specified string as data */
2680 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2683 int size = 16 + strlen(data);
2684 avio_wb32(pb, size); /* size */
2685 ffio_wfourcc(pb, "data");
2688 avio_write(pb, data, strlen(data));
2692 lang = ff_mov_iso639_to_lang("und", 1);
2693 avio_wb16(pb, strlen(data)); /* string length */
2694 avio_wb16(pb, lang);
2695 avio_write(pb, data, strlen(data));
2696 return strlen(data) + 4;
2700 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2701 const char *value, int lang, int long_style)
2704 if (value && value[0]) {
2705 int64_t pos = avio_tell(pb);
2706 avio_wb32(pb, 0); /* size */
2707 ffio_wfourcc(pb, name);
2708 mov_write_string_data_tag(pb, value, lang, long_style);
2709 size = update_size(pb, pos);
2714 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2715 const char *name, const char *tag,
2718 int l, lang = 0, len, len2;
2719 AVDictionaryEntry *t, *t2 = NULL;
2722 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2725 len = strlen(t->key);
2726 snprintf(tag2, sizeof(tag2), "%s-", tag);
2727 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2728 len2 = strlen(t2->key);
2729 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2730 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2735 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2738 /* iTunes bpm number */
2739 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2741 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2742 int size = 0, tmpo = t ? atoi(t->value) : 0;
2745 avio_wb32(pb, size);
2746 ffio_wfourcc(pb, "tmpo");
2747 avio_wb32(pb, size-8); /* size */
2748 ffio_wfourcc(pb, "data");
2749 avio_wb32(pb, 0x15); //type specifier
2751 avio_wb16(pb, tmpo); // data
2756 /* iTunes track or disc number */
2757 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2758 AVFormatContext *s, int disc)
2760 AVDictionaryEntry *t = av_dict_get(s->metadata,
2761 disc ? "disc" : "track",
2763 int size = 0, track = t ? atoi(t->value) : 0;
2766 char *slash = strchr(t->value, '/');
2768 tracks = atoi(slash + 1);
2769 avio_wb32(pb, 32); /* size */
2770 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2771 avio_wb32(pb, 24); /* size */
2772 ffio_wfourcc(pb, "data");
2773 avio_wb32(pb, 0); // 8 bytes empty
2775 avio_wb16(pb, 0); // empty
2776 avio_wb16(pb, track); // track / disc number
2777 avio_wb16(pb, tracks); // total track / disc number
2778 avio_wb16(pb, 0); // empty
2784 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2785 const char *name, const char *tag,
2788 AVDictionaryEntry *t = NULL;
2790 int size = 24 + len;
2792 if (len != 1 && len != 4)
2795 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2797 num = atoi(t->value);
2799 avio_wb32(pb, size);
2800 ffio_wfourcc(pb, name);
2801 avio_wb32(pb, size - 8);
2802 ffio_wfourcc(pb, "data");
2803 avio_wb32(pb, 0x15);
2805 if (len==4) avio_wb32(pb, num);
2806 else avio_w8 (pb, num);
2811 /* iTunes meta data list */
2812 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2815 int64_t pos = avio_tell(pb);
2816 avio_wb32(pb, 0); /* size */
2817 ffio_wfourcc(pb, "ilst");
2818 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2819 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2820 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2821 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2822 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2823 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2825 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2826 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2827 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2828 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2829 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2830 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2831 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2832 mov_write_string_metadata(s, pb, "desc", "description",1);
2833 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2834 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2835 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2836 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2837 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2838 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2839 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2840 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2841 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2842 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2843 mov_write_trkn_tag(pb, mov, s, 0); // track number
2844 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2845 mov_write_tmpo_tag(pb, s);
2846 return update_size(pb, pos);
2849 /* iTunes meta data tag */
2850 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2854 int64_t pos = avio_tell(pb);
2855 avio_wb32(pb, 0); /* size */
2856 ffio_wfourcc(pb, "meta");
2858 mov_write_itunes_hdlr_tag(pb, mov, s);
2859 mov_write_ilst_tag(pb, mov, s);
2860 size = update_size(pb, pos);
2864 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2865 const char *name, const char *key)
2868 AVDictionaryEntry *t;
2870 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2873 len = strlen(t->value);
2876 avio_wb32(pb, size);
2877 ffio_wfourcc(pb, name);
2878 avio_write(pb, t->value, len);
2884 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2888 GET_UTF8(val, *b++, return -1;)
2891 avio_wb16(pb, 0x00);
2895 static uint16_t language_code(const char *str)
2897 return (((str[0] - 0x60) & 0x1F) << 10) +
2898 (((str[1] - 0x60) & 0x1F) << 5) +
2899 (( str[2] - 0x60) & 0x1F);
2902 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2903 const char *tag, const char *str)
2905 int64_t pos = avio_tell(pb);
2906 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2907 if (!t || !utf8len(t->value))
2909 avio_wb32(pb, 0); /* size */
2910 ffio_wfourcc(pb, tag); /* type */
2911 avio_wb32(pb, 0); /* version + flags */
2912 if (!strcmp(tag, "yrrc"))
2913 avio_wb16(pb, atoi(t->value));
2915 avio_wb16(pb, language_code("eng")); /* language */
2916 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2917 if (!strcmp(tag, "albm") &&
2918 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2919 avio_w8(pb, atoi(t->value));
2921 return update_size(pb, pos);
2924 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2926 int64_t pos = avio_tell(pb);
2927 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2929 avio_wb32(pb, 0); // size
2930 ffio_wfourcc(pb, "chpl");
2931 avio_wb32(pb, 0x01000000); // version + flags
2932 avio_wb32(pb, 0); // unknown
2933 avio_w8(pb, nb_chapters);
2935 for (i = 0; i < nb_chapters; i++) {
2936 AVChapter *c = s->chapters[i];
2937 AVDictionaryEntry *t;
2938 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2940 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2941 int len = FFMIN(strlen(t->value), 255);
2943 avio_write(pb, t->value, len);
2947 return update_size(pb, pos);
2950 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2953 AVIOContext *pb_buf;
2957 ret = avio_open_dyn_buf(&pb_buf);
2961 if (mov->mode & MODE_3GP) {
2962 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2963 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2964 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2965 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2966 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2967 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2968 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2969 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2970 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2971 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2972 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2973 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2974 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2975 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2976 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2977 // currently ignored by mov.c
2978 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2979 // add support for libquicktime, this atom is also actually read by mov.c
2980 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2981 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2982 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2983 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2985 /* iTunes meta data */
2986 mov_write_meta_tag(pb_buf, mov, s);
2989 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2990 mov_write_chpl_tag(pb_buf, s);
2992 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2993 avio_wb32(pb, size + 8);
2994 ffio_wfourcc(pb, "udta");
2995 avio_write(pb, buf, size);
3002 static void mov_write_psp_udta_tag(AVIOContext *pb,
3003 const char *str, const char *lang, int type)
3005 int len = utf8len(str) + 1;
3008 avio_wb16(pb, len * 2 + 10); /* size */
3009 avio_wb32(pb, type); /* type */
3010 avio_wb16(pb, language_code(lang)); /* language */
3011 avio_wb16(pb, 0x01); /* ? */
3012 ascii_to_wc(pb, str);
3015 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3017 MOVMuxContext *mov = s->priv_data;
3018 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3022 pos = avio_tell(pb);
3023 avio_wb32(pb, 0); /* size placeholder*/
3024 ffio_wfourcc(pb, "uuid");
3025 ffio_wfourcc(pb, "USMT");
3026 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3027 avio_wb32(pb, 0xbb88695c);
3028 avio_wb32(pb, 0xfac9c740);
3030 pos2 = avio_tell(pb);
3031 avio_wb32(pb, 0); /* size placeholder*/
3032 ffio_wfourcc(pb, "MTDT");
3036 avio_wb16(pb, 0x0C); /* size */
3037 avio_wb32(pb, 0x0B); /* type */
3038 avio_wb16(pb, language_code("und")); /* language */
3039 avio_wb16(pb, 0x0); /* ? */
3040 avio_wb16(pb, 0x021C); /* data */
3043 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3044 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3045 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3047 update_size(pb, pos2);
3048 return update_size(pb, pos);
3054 static void build_chunks(MOVTrack *trk)
3057 MOVIentry *chunk = &trk->cluster[0];
3058 uint64_t chunkSize = chunk->size;
3059 chunk->chunkNum = 1;
3060 if (trk->chunkCount)
3062 trk->chunkCount = 1;
3063 for (i = 1; i<trk->entry; i++){
3064 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3065 chunkSize + trk->cluster[i].size < (1<<20)){
3066 chunkSize += trk->cluster[i].size;
3067 chunk->samples_in_chunk += trk->cluster[i].entries;
3069 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3070 chunk=&trk->cluster[i];
3071 chunkSize = chunk->size;
3077 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3081 int64_t pos = avio_tell(pb);
3082 avio_wb32(pb, 0); /* size placeholder*/
3083 ffio_wfourcc(pb, "moov");
3085 for (i = 0; i < mov->nb_streams; i++) {
3086 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3089 mov->tracks[i].time = mov->time;
3090 mov->tracks[i].track_id = i + 1;
3092 if (mov->tracks[i].entry)
3093 build_chunks(&mov->tracks[i]);
3096 if (mov->chapter_track)
3097 for (i = 0; i < s->nb_streams; i++) {
3098 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3099 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3101 for (i = 0; i < mov->nb_streams; i++) {
3102 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3103 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3104 mov->tracks[i].tref_id =
3105 mov->tracks[mov->tracks[i].src_track].track_id;
3108 for (i = 0; i < mov->nb_streams; i++) {
3109 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3110 int src_trk = mov->tracks[i].src_track;
3111 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3112 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3113 //src_trk may have a different timescale than the tmcd track
3114 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3115 mov->tracks[i].timescale,
3116 mov->tracks[src_trk].timescale);
3120 mov_write_mvhd_tag(pb, mov);
3121 if (mov->mode != MODE_MOV && !mov->iods_skip)
3122 mov_write_iods_tag(pb, mov);
3123 for (i = 0; i < mov->nb_streams; i++) {
3124 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3125 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3130 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3131 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3133 if (mov->mode == MODE_PSP)
3134 mov_write_uuidusmt_tag(pb, s);
3136 mov_write_udta_tag(pb, mov, s);
3138 return update_size(pb, pos);
3141 static void param_write_int(AVIOContext *pb, const char *name, int value)
3143 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3146 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3148 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3151 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3154 len = FFMIN(sizeof(buf) / 2 - 1, len);
3155 ff_data_to_hex(buf, value, len, 0);
3156 buf[2 * len] = '\0';
3157 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3160 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3162 int64_t pos = avio_tell(pb);
3164 static const uint8_t uuid[] = {
3165 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3166 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3170 ffio_wfourcc(pb, "uuid");
3171 avio_write(pb, uuid, sizeof(uuid));
3174 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3175 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3176 avio_printf(pb, "<head>\n");
3178 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3180 avio_printf(pb, "</head>\n");
3181 avio_printf(pb, "<body>\n");
3182 avio_printf(pb, "<switch>\n");
3183 for (i = 0; i < mov->nb_streams; i++) {
3184 MOVTrack *track = &mov->tracks[i];
3186 /* track->track_id is initialized in write_moov, and thus isn't known
3188 int track_id = i + 1;
3190 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3192 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3197 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3198 track->enc->bit_rate);
3199 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3200 param_write_int(pb, "trackID", track_id);
3201 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3202 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3204 int size = track->enc->extradata_size;
3205 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3207 param_write_hex(pb, "CodecPrivateData",
3208 ptr ? ptr : track->enc->extradata,
3212 param_write_string(pb, "FourCC", "H264");
3213 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3214 param_write_string(pb, "FourCC", "WVC1");
3215 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3216 track->enc->extradata_size);
3218 param_write_int(pb, "MaxWidth", track->enc->width);
3219 param_write_int(pb, "MaxHeight", track->enc->height);
3220 param_write_int(pb, "DisplayWidth", track->enc->width);
3221 param_write_int(pb, "DisplayHeight", track->enc->height);
3223 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3224 param_write_string(pb, "FourCC", "AACL");
3225 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3226 param_write_string(pb, "FourCC", "WMAP");
3228 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3229 track->enc->extradata_size);
3230 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3231 track->enc->codec_id));
3232 param_write_int(pb, "Channels", track->enc->channels);
3233 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3234 param_write_int(pb, "BitsPerSample", 16);
3235 param_write_int(pb, "PacketSize", track->enc->block_align ?
3236 track->enc->block_align : 4);
3238 avio_printf(pb, "</%s>\n", type);
3240 avio_printf(pb, "</switch>\n");
3241 avio_printf(pb, "</body>\n");
3242 avio_printf(pb, "</smil>\n");
3244 return update_size(pb, pos);
3247 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3250 ffio_wfourcc(pb, "mfhd");
3252 avio_wb32(pb, mov->fragments);
3256 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3257 MOVTrack *track, int64_t moof_offset)
3259 int64_t pos = avio_tell(pb);
3260 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3261 MOV_TFHD_BASE_DATA_OFFSET;
3262 if (!track->entry) {
3263 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3265 flags |= MOV_TFHD_DEFAULT_FLAGS;
3267 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3268 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3269 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3270 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3271 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3274 /* Don't set a default sample size, the silverlight player refuses
3275 * to play files with that set. Don't set a default sample duration,
3276 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3277 * file format says it MUST NOT be set. */
3278 if (track->mode == MODE_ISM)
3279 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3280 MOV_TFHD_BASE_DATA_OFFSET);
3282 avio_wb32(pb, 0); /* size placeholder */
3283 ffio_wfourcc(pb, "tfhd");
3284 avio_w8(pb, 0); /* version */
3285 avio_wb24(pb, flags);
3287 avio_wb32(pb, track->track_id); /* track-id */
3288 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3289 avio_wb64(pb, moof_offset);
3290 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3291 track->default_duration = get_cluster_duration(track, 0);
3292 avio_wb32(pb, track->default_duration);
3294 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3295 track->default_size = track->entry ? track->cluster[0].size : 1;
3296 avio_wb32(pb, track->default_size);
3298 track->default_size = -1;
3300 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3301 track->default_sample_flags =
3302 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3303 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3304 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3305 avio_wb32(pb, track->default_sample_flags);
3308 return update_size(pb, pos);
3311 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3313 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3314 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3317 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3318 MOVTrack *track, int moof_size)
3320 int64_t pos = avio_tell(pb);
3321 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3324 for (i = 0; i < track->entry; i++) {
3325 if (get_cluster_duration(track, i) != track->default_duration)
3326 flags |= MOV_TRUN_SAMPLE_DURATION;
3327 if (track->cluster[i].size != track->default_size)
3328 flags |= MOV_TRUN_SAMPLE_SIZE;
3329 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3330 flags |= MOV_TRUN_SAMPLE_FLAGS;
3332 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3333 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3334 if (track->flags & MOV_TRACK_CTTS)
3335 flags |= MOV_TRUN_SAMPLE_CTS;
3337 avio_wb32(pb, 0); /* size placeholder */
3338 ffio_wfourcc(pb, "trun");
3339 avio_w8(pb, 0); /* version */
3340 avio_wb24(pb, flags);
3342 avio_wb32(pb, track->entry); /* sample count */
3343 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3344 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3346 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3348 avio_wb32(pb, moof_size + 8 + track->data_offset +
3349 track->cluster[0].pos); /* data offset */
3350 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3351 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3353 for (i = 0; i < track->entry; i++) {
3354 if (flags & MOV_TRUN_SAMPLE_DURATION)
3355 avio_wb32(pb, get_cluster_duration(track, i));
3356 if (flags & MOV_TRUN_SAMPLE_SIZE)
3357 avio_wb32(pb, track->cluster[i].size);
3358 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3359 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3360 if (flags & MOV_TRUN_SAMPLE_CTS)
3361 avio_wb32(pb, track->cluster[i].cts);
3364 mov->first_trun = 0;
3365 return update_size(pb, pos);
3368 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3370 int64_t pos = avio_tell(pb);
3371 static const uint8_t uuid[] = {
3372 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3373 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3376 avio_wb32(pb, 0); /* size placeholder */
3377 ffio_wfourcc(pb, "uuid");
3378 avio_write(pb, uuid, sizeof(uuid));
3381 avio_wb64(pb, track->frag_start);
3382 avio_wb64(pb, track->start_dts + track->track_duration -
3383 track->cluster[0].dts);
3385 return update_size(pb, pos);
3388 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3389 MOVTrack *track, int entry)
3391 int n = track->nb_frag_info - 1 - entry, i;
3392 int size = 8 + 16 + 4 + 1 + 16*n;
3393 static const uint8_t uuid[] = {
3394 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3395 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3401 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3402 avio_wb32(pb, size);
3403 ffio_wfourcc(pb, "uuid");
3404 avio_write(pb, uuid, sizeof(uuid));
3408 for (i = 0; i < n; i++) {
3409 int index = entry + 1 + i;
3410 avio_wb64(pb, track->frag_info[index].time);
3411 avio_wb64(pb, track->frag_info[index].duration);
3413 if (n < mov->ism_lookahead) {
3414 int free_size = 16 * (mov->ism_lookahead - n);
3415 avio_wb32(pb, free_size);
3416 ffio_wfourcc(pb, "free");
3417 ffio_fill(pb, 0, free_size - 8);
3423 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3426 int64_t pos = avio_tell(pb);
3428 for (i = 0; i < mov->ism_lookahead; i++) {
3429 /* Update the tfrf tag for the last ism_lookahead fragments,
3430 * nb_frag_info - 1 is the next fragment to be written. */
3431 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3433 avio_seek(pb, pos, SEEK_SET);
3437 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3441 for (i = 0; i < mov->nb_streams; i++) {
3442 MOVTrack *track = &mov->tracks[i];
3443 MOVFragmentInfo *info;
3444 if ((tracks >= 0 && i != tracks) || !track->entry)
3446 track->nb_frag_info++;
3447 if (track->nb_frag_info >= track->frag_info_capacity) {
3448 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3449 if (av_reallocp_array(&track->frag_info,
3451 sizeof(*track->frag_info)))
3452 return AVERROR(ENOMEM);
3453 track->frag_info_capacity = new_capacity;
3455 info = &track->frag_info[track->nb_frag_info - 1];
3456 info->offset = avio_tell(pb);
3458 // Try to recreate the original pts for the first packet
3459 // from the fields we have stored
3460 info->time = track->start_dts + track->frag_start +
3461 track->cluster[0].cts;
3462 // If the pts is less than zero, we will have trimmed
3463 // away parts of the media track using an edit list,
3464 // and the corresponding start presentation time is zero.
3467 info->duration = track->start_dts + track->track_duration -
3468 track->cluster[0].dts;
3469 info->tfrf_offset = 0;
3470 mov_write_tfrf_tags(pb, mov, track);
3475 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3477 int64_t pos = avio_tell(pb);
3479 avio_wb32(pb, 0); /* size */
3480 ffio_wfourcc(pb, "tfdt");
3481 avio_w8(pb, 1); /* version */
3483 avio_wb64(pb, track->frag_start);
3484 return update_size(pb, pos);
3487 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3488 MOVTrack *track, int64_t moof_offset,
3491 int64_t pos = avio_tell(pb);
3492 avio_wb32(pb, 0); /* size placeholder */
3493 ffio_wfourcc(pb, "traf");
3495 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3496 if (mov->mode != MODE_ISM)
3497 mov_write_tfdt_tag(pb, track);
3498 mov_write_trun_tag(pb, mov, track, moof_size);
3499 if (mov->mode == MODE_ISM) {
3500 mov_write_tfxd_tag(pb, track);
3502 if (mov->ism_lookahead) {
3503 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3505 if (track->nb_frag_info > 0) {
3506 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3507 if (!info->tfrf_offset)
3508 info->tfrf_offset = avio_tell(pb);
3510 avio_wb32(pb, 8 + size);
3511 ffio_wfourcc(pb, "free");
3512 for (i = 0; i < size; i++)
3517 return update_size(pb, pos);
3520 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3521 int tracks, int moof_size)
3523 int64_t pos = avio_tell(pb);
3526 avio_wb32(pb, 0); /* size placeholder */
3527 ffio_wfourcc(pb, "moof");
3528 mov->first_trun = 1;
3530 mov_write_mfhd_tag(pb, mov);
3531 for (i = 0; i < mov->nb_streams; i++) {
3532 MOVTrack *track = &mov->tracks[i];
3533 if (tracks >= 0 && i != tracks)
3537 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3540 return update_size(pb, pos);
3543 static int mov_write_sidx_tag(AVIOContext *pb,
3544 MOVTrack *track, int ref_size, int total_sidx_size)
3546 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3547 int64_t presentation_time, duration, offset;
3548 int starts_with_SAP, i, entries;
3552 presentation_time = track->start_dts + track->frag_start +
3553 track->cluster[0].cts;
3554 duration = track->start_dts + track->track_duration -
3555 track->cluster[0].dts;
3556 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3558 entries = track->nb_frag_info;
3559 presentation_time = track->frag_info[0].time;
3562 // pts<0 should be cut away using edts
3563 if (presentation_time < 0)
3564 presentation_time = 0;
3566 avio_wb32(pb, 0); /* size */
3567 ffio_wfourcc(pb, "sidx");
3568 avio_w8(pb, 1); /* version */
3570 avio_wb32(pb, track->track_id); /* reference_ID */
3571 avio_wb32(pb, track->timescale); /* timescale */
3572 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3573 offset_pos = avio_tell(pb);
3574 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3575 avio_wb16(pb, 0); /* reserved */
3577 avio_wb16(pb, entries); /* reference_count */
3578 for (i = 0; i < entries; i++) {
3579 if (!track->entry) {
3580 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3581 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3583 duration = track->frag_info[i].duration;
3584 ref_size = track->frag_info[i].size;
3585 starts_with_SAP = 1;
3587 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3588 avio_wb32(pb, duration); /* subsegment_duration */
3589 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3592 end_pos = avio_tell(pb);
3593 offset = pos + total_sidx_size - end_pos;
3594 avio_seek(pb, offset_pos, SEEK_SET);
3595 avio_wb64(pb, offset);
3596 avio_seek(pb, end_pos, SEEK_SET);
3597 return update_size(pb, pos);
3600 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3601 int tracks, int ref_size)
3604 AVIOContext *avio_buf;
3606 for (round = 0; round < 2; round++) {
3607 // First run one round to calculate the total size of all
3609 // This would be much simpler if we'd only write one sidx
3610 // atom, for the first track in the moof.
3612 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3617 for (i = 0; i < mov->nb_streams; i++) {
3618 MOVTrack *track = &mov->tracks[i];
3619 if (tracks >= 0 && i != tracks)
3621 // When writing a sidx for the full file, entry is 0, but
3622 // we want to include all tracks. ref_size is 0 in this case,
3623 // since we read it from frag_info instead.
3624 if (!track->entry && ref_size > 0)
3626 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3630 total_size = ffio_close_null_buf(avio_buf);
3635 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3638 AVIOContext *avio_buf;
3641 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3643 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3644 moof_size = ffio_close_null_buf(avio_buf);
3646 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3647 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3649 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3652 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3655 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3657 int64_t pos = avio_tell(pb);
3660 avio_wb32(pb, 0); /* size placeholder */
3661 ffio_wfourcc(pb, "tfra");
3662 avio_w8(pb, 1); /* version */
3665 avio_wb32(pb, track->track_id);
3666 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3667 avio_wb32(pb, track->nb_frag_info);
3668 for (i = 0; i < track->nb_frag_info; i++) {
3669 avio_wb64(pb, track->frag_info[i].time);
3670 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3671 avio_w8(pb, 1); /* traf number */
3672 avio_w8(pb, 1); /* trun number */
3673 avio_w8(pb, 1); /* sample number */
3676 return update_size(pb, pos);
3679 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3681 int64_t pos = avio_tell(pb);
3684 avio_wb32(pb, 0); /* size placeholder */
3685 ffio_wfourcc(pb, "mfra");
3686 /* An empty mfra atom is enough to indicate to the publishing point that
3687 * the stream has ended. */
3688 if (mov->flags & FF_MOV_FLAG_ISML)
3689 return update_size(pb, pos);
3691 for (i = 0; i < mov->nb_streams; i++) {
3692 MOVTrack *track = &mov->tracks[i];
3693 if (track->nb_frag_info)
3694 mov_write_tfra_tag(pb, track);
3698 ffio_wfourcc(pb, "mfro");
3699 avio_wb32(pb, 0); /* version + flags */
3700 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3702 return update_size(pb, pos);
3705 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3707 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3708 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3710 mov->mdat_pos = avio_tell(pb);
3711 avio_wb32(pb, 0); /* size placeholder*/
3712 ffio_wfourcc(pb, "mdat");
3716 /* TODO: This needs to be more general */
3717 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3719 MOVMuxContext *mov = s->priv_data;
3720 int64_t pos = avio_tell(pb);
3721 int has_h264 = 0, has_video = 0;
3725 for (i = 0; i < s->nb_streams; i++) {
3726 AVStream *st = s->streams[i];
3727 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3729 if (st->codec->codec_id == AV_CODEC_ID_H264)
3733 avio_wb32(pb, 0); /* size */
3734 ffio_wfourcc(pb, "ftyp");
3736 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3737 ffio_wfourcc(pb, mov->major_brand);
3738 else if (mov->mode == MODE_3GP) {
3739 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3740 minor = has_h264 ? 0x100 : 0x200;
3741 } else if (mov->mode & MODE_3G2) {
3742 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3743 minor = has_h264 ? 0x20000 : 0x10000;
3744 } else if (mov->mode == MODE_PSP)
3745 ffio_wfourcc(pb, "MSNV");
3746 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3747 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3748 else if (mov->mode == MODE_MP4)
3749 ffio_wfourcc(pb, "isom");
3750 else if (mov->mode == MODE_IPOD)
3751 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3752 else if (mov->mode == MODE_ISM)
3753 ffio_wfourcc(pb, "isml");
3754 else if (mov->mode == MODE_F4V)
3755 ffio_wfourcc(pb, "f4v ");
3757 ffio_wfourcc(pb, "qt ");
3759 avio_wb32(pb, minor);
3761 if (mov->mode == MODE_MOV)
3762 ffio_wfourcc(pb, "qt ");
3763 else if (mov->mode == MODE_ISM) {
3764 ffio_wfourcc(pb, "piff");
3765 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3766 ffio_wfourcc(pb, "isom");
3767 ffio_wfourcc(pb, "iso2");
3769 ffio_wfourcc(pb, "avc1");
3772 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3773 // brand. This is compatible with users that don't understand tfdt.
3774 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3775 ffio_wfourcc(pb, "iso6");
3777 if (mov->mode == MODE_3GP)
3778 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3779 else if (mov->mode & MODE_3G2)
3780 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3781 else if (mov->mode == MODE_PSP)
3782 ffio_wfourcc(pb, "MSNV");
3783 else if (mov->mode == MODE_MP4)
3784 ffio_wfourcc(pb, "mp41");
3786 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3787 ffio_wfourcc(pb, "dash");
3789 return update_size(pb, pos);
3792 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3794 AVStream *video_st = s->streams[0];
3795 AVCodecContext *video_codec = s->streams[0]->codec;
3796 AVCodecContext *audio_codec = s->streams[1]->codec;
3797 int audio_rate = audio_codec->sample_rate;
3798 // TODO: should be avg_frame_rate
3799 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3800 int audio_kbitrate = audio_codec->bit_rate / 1000;
3801 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3803 avio_wb32(pb, 0x94); /* size */
3804 ffio_wfourcc(pb, "uuid");
3805 ffio_wfourcc(pb, "PROF");
3807 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3808 avio_wb32(pb, 0xbb88695c);
3809 avio_wb32(pb, 0xfac9c740);
3811 avio_wb32(pb, 0x0); /* ? */
3812 avio_wb32(pb, 0x3); /* 3 sections ? */
3814 avio_wb32(pb, 0x14); /* size */
3815 ffio_wfourcc(pb, "FPRF");
3816 avio_wb32(pb, 0x0); /* ? */
3817 avio_wb32(pb, 0x0); /* ? */
3818 avio_wb32(pb, 0x0); /* ? */
3820 avio_wb32(pb, 0x2c); /* size */
3821 ffio_wfourcc(pb, "APRF"); /* audio */
3823 avio_wb32(pb, 0x2); /* TrackID */
3824 ffio_wfourcc(pb, "mp4a");
3825 avio_wb32(pb, 0x20f);
3827 avio_wb32(pb, audio_kbitrate);
3828 avio_wb32(pb, audio_kbitrate);
3829 avio_wb32(pb, audio_rate);
3830 avio_wb32(pb, audio_codec->channels);
3832 avio_wb32(pb, 0x34); /* size */
3833 ffio_wfourcc(pb, "VPRF"); /* video */
3835 avio_wb32(pb, 0x1); /* TrackID */
3836 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3837 ffio_wfourcc(pb, "avc1");
3838 avio_wb16(pb, 0x014D);
3839 avio_wb16(pb, 0x0015);
3841 ffio_wfourcc(pb, "mp4v");
3842 avio_wb16(pb, 0x0000);
3843 avio_wb16(pb, 0x0103);
3846 avio_wb32(pb, video_kbitrate);
3847 avio_wb32(pb, video_kbitrate);
3848 avio_wb32(pb, frame_rate);
3849 avio_wb32(pb, frame_rate);
3850 avio_wb16(pb, video_codec->width);
3851 avio_wb16(pb, video_codec->height);
3852 avio_wb32(pb, 0x010001); /* ? */
3855 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3857 MOVMuxContext *mov = s->priv_data;
3860 mov_write_ftyp_tag(pb,s);
3861 if (mov->mode == MODE_PSP) {
3862 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3863 for (i = 0; i < s->nb_streams; i++) {
3864 AVStream *st = s->streams[i];
3865 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3867 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3873 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3874 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3875 return AVERROR(EINVAL);
3877 mov_write_uuidprof_tag(pb, s);
3882 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3885 int i, closed_gop = 0;
3887 for (i = 0; i < pkt->size - 4; i++) {
3888 c = (c << 8) + pkt->data[i];
3889 if (c == 0x1b8) { // gop
3890 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3891 } else if (c == 0x100) { // pic
3892 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3893 if (!temp_ref || closed_gop) // I picture is not reordered
3894 *flags = MOV_SYNC_SAMPLE;
3896 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3903 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3905 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3906 int seq = 0, entry = 0;
3907 int key = pkt->flags & AV_PKT_FLAG_KEY;
3908 start = find_next_marker(pkt->data, end);
3909 for (next = start; next < end; start = next) {
3910 next = find_next_marker(start + 4, end);
3911 switch (AV_RB32(start)) {
3912 case VC1_CODE_SEQHDR:
3915 case VC1_CODE_ENTRYPOINT:
3918 case VC1_CODE_SLICE:
3919 trk->vc1_info.slices = 1;
3923 if (!trk->entry && !fragment) {
3924 /* First packet in first fragment */
3925 trk->vc1_info.first_packet_seq = seq;
3926 trk->vc1_info.first_packet_entry = entry;
3927 } else if ((seq && !trk->vc1_info.packet_seq) ||
3928 (entry && !trk->vc1_info.packet_entry)) {
3930 for (i = 0; i < trk->entry; i++)
3931 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3932 trk->has_keyframes = 0;
3934 trk->vc1_info.packet_seq = 1;
3936 trk->vc1_info.packet_entry = 1;
3938 /* First fragment */
3939 if ((!seq || trk->vc1_info.first_packet_seq) &&
3940 (!entry || trk->vc1_info.first_packet_entry)) {
3941 /* First packet had the same headers as this one, readd the
3942 * sync sample flag. */
3943 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3944 trk->has_keyframes = 1;
3948 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3950 else if (trk->vc1_info.packet_seq)
3952 else if (trk->vc1_info.packet_entry)
3955 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3956 trk->has_keyframes++;
3960 static int mov_flush_fragment(AVFormatContext *s)
3962 MOVMuxContext *mov = s->priv_data;
3963 int i, first_track = -1;
3964 int64_t mdat_size = 0;
3967 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3970 if (mov->fragments == 0) {
3971 int64_t pos = avio_tell(s->pb);
3973 int buf_size, moov_size;
3975 for (i = 0; i < mov->nb_streams; i++)
3976 if (!mov->tracks[i].entry)
3978 /* Don't write the initial moov unless all tracks have data */
3979 if (i < mov->nb_streams)
3982 moov_size = get_moov_size(s);
3983 for (i = 0; i < mov->nb_streams; i++)
3984 mov->tracks[i].data_offset = pos + moov_size + 8;
3986 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3987 mov_write_identification(s->pb, s);
3988 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
3991 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3992 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3993 mov->reserved_moov_pos = avio_tell(s->pb);
3999 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4000 mov->mdat_buf = NULL;
4001 avio_wb32(s->pb, buf_size + 8);
4002 ffio_wfourcc(s->pb, "mdat");
4003 avio_write(s->pb, buf, buf_size);
4008 for (i = 0; i < mov->nb_streams; i++) {
4009 if (mov->tracks[i].entry)
4010 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4011 mov->tracks[i].track_duration -
4012 mov->tracks[i].cluster[0].dts;
4013 mov->tracks[i].entry = 0;
4019 for (i = 0; i < mov->nb_streams; i++) {
4020 MOVTrack *track = &mov->tracks[i];
4021 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
4022 track->data_offset = 0;
4024 track->data_offset = mdat_size;
4025 if (!track->mdat_buf)
4027 mdat_size += avio_tell(track->mdat_buf);
4028 if (first_track < 0)
4035 for (i = 0; i < mov->nb_streams; i++) {
4036 MOVTrack *track = &mov->tracks[i];
4037 int buf_size, write_moof = 1, moof_tracks = -1;
4039 int64_t duration = 0;
4042 duration = track->start_dts + track->track_duration -
4043 track->cluster[0].dts;
4044 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4045 if (!track->mdat_buf)
4047 mdat_size = avio_tell(track->mdat_buf);
4050 write_moof = i == first_track;
4056 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4059 avio_wb32(s->pb, mdat_size + 8);
4060 ffio_wfourcc(s->pb, "mdat");
4064 track->frag_start += duration;
4066 if (!track->mdat_buf)
4068 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4069 track->mdat_buf = NULL;
4071 avio_write(s->pb, buf, buf_size);
4081 static int mov_auto_flush_fragment(AVFormatContext *s)
4083 MOVMuxContext *mov = s->priv_data;
4084 int ret = mov_flush_fragment(s);
4087 // If using delay_moov, the first flush only wrote the moov,
4088 // not the actual moof+mdat pair, thus flush once again.
4089 if (mov->fragments == 1 && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4090 ret = mov_flush_fragment(s);
4094 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4096 MOVMuxContext *mov = s->priv_data;
4097 AVIOContext *pb = s->pb;
4098 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4099 AVCodecContext *enc = trk->enc;
4100 unsigned int samples_in_chunk = 0;
4101 int size = pkt->size, ret = 0;
4102 uint8_t *reformatted_data = NULL;
4105 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4106 if (duration < 0 || duration > INT_MAX) {
4107 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4111 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4112 pkt->pts = AV_NOPTS_VALUE;
4114 if (pkt->duration < 0) {
4115 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4116 return AVERROR(EINVAL);
4119 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4121 if (mov->fragments > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4122 if (!trk->mdat_buf) {
4123 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4128 if (!mov->mdat_buf) {
4129 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4136 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4137 /* We must find out how many AMR blocks there are in one packet */
4138 static uint16_t packed_size[16] =
4139 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4142 while (len < size && samples_in_chunk < 100) {
4143 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4146 if (samples_in_chunk > 1) {
4147 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4150 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4151 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4152 samples_in_chunk = enc->frame_size;
4153 } else if (trk->sample_size)
4154 samples_in_chunk = size / trk->sample_size;
4156 samples_in_chunk = 1;
4158 /* copy extradata if it exists */
4159 if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
4160 trk->vos_len = enc->extradata_size;
4161 trk->vos_data = av_malloc(trk->vos_len);
4162 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4165 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4166 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4167 if (!s->streams[pkt->stream_index]->nb_frames) {
4168 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4169 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4170 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4173 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4175 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4176 /* from x264 or from bytestream h264 */
4177 /* nal reformating needed */
4178 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4179 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4181 avio_write(pb, reformatted_data, size);
4183 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4185 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4186 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4187 /* extradata is Annex B, assume the bitstream is too and convert it */
4188 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4189 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4190 avio_write(pb, reformatted_data, size);
4192 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4194 #if CONFIG_AC3_PARSER
4195 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4196 size = handle_eac3(mov, pkt, trk);
4201 avio_write(pb, pkt->data, size);
4204 avio_write(pb, pkt->data, size);
4207 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4208 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4209 /* copy frame to create needed atoms */
4210 trk->vos_len = size;
4211 trk->vos_data = av_malloc(size);
4212 if (!trk->vos_data) {
4213 ret = AVERROR(ENOMEM);
4216 memcpy(trk->vos_data, pkt->data, size);
4219 if (trk->entry >= trk->cluster_capacity) {
4220 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4221 if (av_reallocp_array(&trk->cluster, new_capacity,
4222 sizeof(*trk->cluster))) {
4223 ret = AVERROR(ENOMEM);
4226 trk->cluster_capacity = new_capacity;
4229 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4230 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4231 trk->cluster[trk->entry].chunkNum = 0;
4232 trk->cluster[trk->entry].size = size;
4233 trk->cluster[trk->entry].entries = samples_in_chunk;
4234 trk->cluster[trk->entry].dts = pkt->dts;
4235 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4236 if (!trk->frag_discont) {
4237 /* First packet of a new fragment. We already wrote the duration
4238 * of the last packet of the previous fragment based on track_duration,
4239 * which might not exactly match our dts. Therefore adjust the dts
4240 * of this packet to be what the previous packets duration implies. */
4241 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4242 /* We also may have written the pts and the corresponding duration
4243 * in sidx tags; make sure the sidx pts and duration match up with
4244 * the next fragment. This means the cts of the first sample must
4245 * be the same in all fragments. */
4246 pkt->pts = pkt->dts + trk->start_cts;
4248 /* New fragment, but discontinuous from previous fragments.
4249 * Pretend the duration sum of the earlier fragments is
4250 * pkt->dts - trk->start_dts. */
4251 trk->frag_start = pkt->dts - trk->start_dts;
4252 trk->frag_discont = 0;
4256 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4257 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4258 /* Not using edit lists and shifting the first track to start from zero.
4259 * If the other streams start from a later timestamp, we won't be able
4260 * to signal the difference in starting time without an edit list.
4261 * Thus move the timestamp for this first sample to 0, increasing
4262 * its duration instead. */
4263 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4265 if (trk->start_dts == AV_NOPTS_VALUE) {
4266 trk->start_dts = pkt->dts;
4267 if (trk->frag_discont) {
4268 /* Pretend the whole stream started at dts=0, with earlier fragments
4269 * already written, with a duration summing up to pkt->dts. */
4270 trk->frag_start = pkt->dts;
4272 trk->frag_discont = 0;
4273 } else if (pkt->dts && mov->fragments >= 1)
4274 av_log(s, AV_LOG_WARNING,
4275 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4276 "already has been written. Set the delay_moov flag to handle "
4278 pkt->stream_index, pkt->dts);
4280 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4281 trk->last_sample_is_subtitle_end = 0;
4283 if (pkt->pts == AV_NOPTS_VALUE) {
4284 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4285 pkt->pts = pkt->dts;
4287 if (pkt->dts != pkt->pts)
4288 trk->flags |= MOV_TRACK_CTTS;
4289 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4290 trk->cluster[trk->entry].flags = 0;
4291 if (trk->start_cts == AV_NOPTS_VALUE)
4292 trk->start_cts = pkt->pts - pkt->dts;
4294 if (enc->codec_id == AV_CODEC_ID_VC1) {
4295 mov_parse_vc1_frame(pkt, trk, mov->fragments);
4296 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4297 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4298 trk->entry > 0) { // force sync sample for the first key frame
4299 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4300 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4301 trk->flags |= MOV_TRACK_STPS;
4303 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4305 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4306 trk->has_keyframes++;
4309 trk->sample_count += samples_in_chunk;
4310 mov->mdat_size += size;
4312 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4313 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4314 reformatted_data, size);
4319 av_free(reformatted_data);
4323 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4325 MOVMuxContext *mov = s->priv_data;
4326 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4327 AVCodecContext *enc = trk->enc;
4328 int64_t frag_duration = 0;
4329 int size = pkt->size;
4332 return 0; /* Discard 0 sized packets */
4334 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4336 for (i = 0; i < s->nb_streams; i++)
4337 mov->tracks[i].frag_discont = 1;
4338 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4341 if (trk->entry && pkt->stream_index < s->nb_streams)
4342 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4343 s->streams[pkt->stream_index]->time_base,
4345 if ((mov->max_fragment_duration &&
4346 frag_duration >= mov->max_fragment_duration) ||
4347 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4348 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4349 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4350 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4351 if (frag_duration >= mov->min_fragment_duration)
4352 mov_auto_flush_fragment(s);
4355 return ff_mov_write_packet(s, pkt);
4358 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4362 uint8_t data[2] = {0};
4365 av_init_packet(&end);
4366 end.size = sizeof(data);
4371 end.stream_index = stream_index;
4373 ret = mov_write_single_packet(s, &end);
4374 av_free_packet(&end);
4379 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4382 mov_flush_fragment(s);
4386 MOVMuxContext *mov = s->priv_data;
4388 if (!pkt->size) return 0; /* Discard 0 sized packets */
4391 * Subtitles require special handling.
4393 * 1) For full complaince, every track must have a sample at
4394 * dts == 0, which is rarely true for subtitles. So, as soon
4395 * as we see any packet with dts > 0, write an empty subtitle
4396 * at dts == 0 for any subtitle track with no samples in it.
4398 * 2) For each subtitle track, check if the current packet's
4399 * dts is past the duration of the last subtitle sample. If
4400 * so, we now need to write an end sample for that subtitle.
4402 * This must be done conditionally to allow for subtitles that
4403 * immediately replace each other, in which case an end sample
4404 * is not needed, and is, in fact, actively harmful.
4406 * 3) See mov_write_trailer for how the final end sample is
4409 for (i = 0; i < mov->nb_streams; i++) {
4410 MOVTrack *trk = &mov->tracks[i];
4413 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4414 trk->track_duration < pkt->dts &&
4415 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4416 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4417 if (ret < 0) return ret;
4418 trk->last_sample_is_subtitle_end = 1;
4422 return mov_write_single_packet(s, pkt);
4426 // QuickTime chapters involve an additional text track with the chapter names
4427 // as samples, and a tref pointing from the other tracks to the chapter one.
4428 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4432 MOVMuxContext *mov = s->priv_data;
4433 MOVTrack *track = &mov->tracks[tracknum];
4434 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4437 track->mode = mov->mode;
4438 track->tag = MKTAG('t','e','x','t');
4439 track->timescale = MOV_TIMESCALE;
4440 track->enc = avcodec_alloc_context3(NULL);
4442 return AVERROR(ENOMEM);
4443 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4445 // These properties are required to make QT recognize the chapter track
4446 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4447 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4448 return AVERROR(ENOMEM);
4449 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4451 if (avio_open_dyn_buf(&pb) >= 0) {
4455 /* Stub header (usually for Quicktime chapter track) */
4457 avio_wb32(pb, 0x01); // displayFlags
4458 avio_w8(pb, 0x00); // horizontal justification
4459 avio_w8(pb, 0x00); // vertical justification
4460 avio_w8(pb, 0x00); // bgColourRed
4461 avio_w8(pb, 0x00); // bgColourGreen
4462 avio_w8(pb, 0x00); // bgColourBlue
4463 avio_w8(pb, 0x00); // bgColourAlpha
4465 avio_wb16(pb, 0x00); // defTextBoxTop
4466 avio_wb16(pb, 0x00); // defTextBoxLeft
4467 avio_wb16(pb, 0x00); // defTextBoxBottom
4468 avio_wb16(pb, 0x00); // defTextBoxRight
4470 avio_wb16(pb, 0x00); // startChar
4471 avio_wb16(pb, 0x00); // endChar
4472 avio_wb16(pb, 0x01); // fontID
4473 avio_w8(pb, 0x00); // fontStyleFlags
4474 avio_w8(pb, 0x00); // fontSize
4475 avio_w8(pb, 0x00); // fgColourRed
4476 avio_w8(pb, 0x00); // fgColourGreen
4477 avio_w8(pb, 0x00); // fgColourBlue
4478 avio_w8(pb, 0x00); // fgColourAlpha
4480 avio_wb32(pb, 0x0D); // box size
4481 ffio_wfourcc(pb, "ftab"); // box atom name
4482 avio_wb16(pb, 0x01); // entry count
4484 avio_wb16(pb, 0x01); // font ID
4485 avio_w8(pb, 0x00); // font name length
4487 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4488 track->enc->extradata = buf;
4489 track->enc->extradata_size = size;
4496 for (i = 0; i < s->nb_chapters; i++) {
4497 AVChapter *c = s->chapters[i];
4498 AVDictionaryEntry *t;
4500 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4501 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4502 pkt.duration = end - pkt.dts;
4504 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4505 const char encd[12] = {
4506 0x00, 0x00, 0x00, 0x0C,
4508 0x00, 0x00, 0x01, 0x00 };
4509 len = strlen(t->value);
4510 pkt.size = len + 2 + 12;
4511 pkt.data = av_malloc(pkt.size);
4513 return AVERROR(ENOMEM);
4514 AV_WB16(pkt.data, len);
4515 memcpy(pkt.data + 2, t->value, len);
4516 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4517 ff_mov_write_packet(s, &pkt);
4518 av_freep(&pkt.data);
4525 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4528 MOVMuxContext *mov = s->priv_data;
4529 MOVTrack *track = &mov->tracks[index];
4530 AVStream *src_st = s->streams[src_index];
4532 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4533 AVRational rate = find_fps(s, src_st);
4535 /* compute the frame number */
4536 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4540 /* tmcd track based on video stream */
4541 track->mode = mov->mode;
4542 track->tag = MKTAG('t','m','c','d');
4543 track->src_track = src_index;
4544 track->timescale = mov->tracks[src_index].timescale;
4545 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4546 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4548 /* set st to src_st for metadata access*/
4551 /* encode context: tmcd data stream */
4552 track->enc = avcodec_alloc_context3(NULL);
4553 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4554 track->enc->codec_tag = track->tag;
4555 track->enc->time_base = av_inv_q(rate);
4557 /* the tmcd track just contains one packet with the frame number */
4558 pkt.data = av_malloc(pkt.size);
4559 AV_WB32(pkt.data, tc.start);
4560 ret = ff_mov_write_packet(s, &pkt);
4566 * st->disposition controls the "enabled" flag in the tkhd tag.
4567 * QuickTime will not play a track if it is not enabled. So make sure
4568 * that one track of each type (audio, video, subtitle) is enabled.
4570 * Subtitles are special. For audio and video, setting "enabled" also
4571 * makes the track "default" (i.e. it is rendered when played). For
4572 * subtitles, an "enabled" subtitle is not rendered by default, but
4573 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4576 static void enable_tracks(AVFormatContext *s)
4578 MOVMuxContext *mov = s->priv_data;
4580 int enabled[AVMEDIA_TYPE_NB];
4581 int first[AVMEDIA_TYPE_NB];
4583 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4588 for (i = 0; i < s->nb_streams; i++) {
4589 AVStream *st = s->streams[i];
4591 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4592 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4595 if (first[st->codec->codec_type] < 0)
4596 first[st->codec->codec_type] = i;
4597 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4598 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4599 enabled[st->codec->codec_type]++;
4603 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4605 case AVMEDIA_TYPE_VIDEO:
4606 case AVMEDIA_TYPE_AUDIO:
4607 case AVMEDIA_TYPE_SUBTITLE:
4609 mov->per_stream_grouping = 1;
4610 if (!enabled[i] && first[i] >= 0)
4611 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4617 static void mov_free(AVFormatContext *s)
4619 MOVMuxContext *mov = s->priv_data;
4622 if (mov->chapter_track) {
4623 if (mov->tracks[mov->chapter_track].enc)
4624 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4625 av_freep(&mov->tracks[mov->chapter_track].enc);
4628 for (i = 0; i < mov->nb_streams; i++) {
4629 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4630 ff_mov_close_hinting(&mov->tracks[i]);
4631 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4632 av_freep(&mov->tracks[i].enc);
4633 av_freep(&mov->tracks[i].cluster);
4634 av_freep(&mov->tracks[i].frag_info);
4636 if (mov->tracks[i].vos_len)
4637 av_freep(&mov->tracks[i].vos_data);
4640 av_freep(&mov->tracks);
4643 static uint32_t rgb_to_yuv(uint32_t rgb)
4648 r = (rgb >> 16) & 0xFF;
4649 g = (rgb >> 8) & 0xFF;
4652 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4653 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4654 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4656 return (y << 16) | (cr << 8) | cb;
4659 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4662 int i, width = 720, height = 480;
4663 int have_palette = 0, have_size = 0;
4664 uint32_t palette[16];
4665 char *cur = st->codec->extradata;
4667 while (cur && *cur) {
4668 if (strncmp("palette:", cur, 8) == 0) {
4670 count = sscanf(cur + 8,
4671 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4672 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4673 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4674 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4675 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4676 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4677 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4678 &palette[12], &palette[13], &palette[14], &palette[15]);
4680 for (i = 0; i < count; i++) {
4681 palette[i] = rgb_to_yuv(palette[i]);
4684 } else if (!strncmp("size:", cur, 5)) {
4685 sscanf(cur + 5, "%dx%d", &width, &height);
4688 if (have_palette && have_size)
4690 cur += strcspn(cur, "\n\r");
4691 cur += strspn(cur, "\n\r");
4694 track->vos_data = av_malloc(16*4);
4695 if (!track->vos_data)
4696 return AVERROR(ENOMEM);
4697 for (i = 0; i < 16; i++) {
4698 AV_WB32(track->vos_data + i * 4, palette[i]);
4700 track->vos_len = 16 * 4;
4702 st->codec->width = width;
4703 st->codec->height = track->height = height;
4708 static int mov_write_header(AVFormatContext *s)
4710 AVIOContext *pb = s->pb;
4711 MOVMuxContext *mov = s->priv_data;
4712 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4713 int i, ret, hint_track = 0, tmcd_track = 0;
4717 /* Default mode == MP4 */
4718 mov->mode = MODE_MP4;
4721 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4722 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4723 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4724 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4725 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4726 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4727 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4730 if (s->flags & AVFMT_FLAG_BITEXACT)
4733 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4734 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
4736 /* Set the FRAGMENT flag if any of the fragmentation methods are
4738 if (mov->max_fragment_duration || mov->max_fragment_size ||
4739 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4740 FF_MOV_FLAG_FRAG_KEYFRAME |
4741 FF_MOV_FLAG_FRAG_CUSTOM))
4742 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4744 /* Set other implicit flags immediately */
4745 if (mov->mode == MODE_ISM)
4746 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4747 FF_MOV_FLAG_FRAGMENT;
4748 if (mov->flags & FF_MOV_FLAG_DASH)
4749 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4750 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4752 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4753 mov->reserved_moov_size = -1;
4756 if (mov->use_editlist < 0) {
4757 mov->use_editlist = 1;
4758 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4759 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4760 // If we can avoid needing an edit list by shifting the
4761 // tracks, prefer that over (trying to) write edit lists
4762 // in fragmented output.
4763 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4764 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4765 mov->use_editlist = 0;
4768 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4769 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4770 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4772 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4773 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4775 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4776 * is enabled, we don't support non-seekable output at all. */
4777 if (!s->pb->seekable &&
4778 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4779 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4780 return AVERROR(EINVAL);
4783 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4784 if ((ret = mov_write_identification(pb, s)) < 0)
4788 mov->nb_streams = s->nb_streams;
4789 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4790 mov->chapter_track = mov->nb_streams++;
4792 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4793 /* Add hint tracks for each audio and video stream */
4794 hint_track = mov->nb_streams;
4795 for (i = 0; i < s->nb_streams; i++) {
4796 AVStream *st = s->streams[i];
4797 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4798 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4804 if (mov->mode == MODE_MOV) {
4805 tmcd_track = mov->nb_streams;
4807 /* +1 tmcd track for each video stream with a timecode */
4808 for (i = 0; i < s->nb_streams; i++) {
4809 AVStream *st = s->streams[i];
4810 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4811 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4812 mov->nb_meta_tmcd++;
4815 /* check if there is already a tmcd track to remux */
4816 if (mov->nb_meta_tmcd) {
4817 for (i = 0; i < s->nb_streams; i++) {
4818 AVStream *st = s->streams[i];
4819 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4820 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4821 "so timecode metadata are now ignored\n");
4822 mov->nb_meta_tmcd = 0;
4827 mov->nb_streams += mov->nb_meta_tmcd;
4830 // Reserve an extra stream for chapters for the case where chapters
4831 // are written in the trailer
4832 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4834 return AVERROR(ENOMEM);
4836 for (i = 0; i < s->nb_streams; i++) {
4837 AVStream *st= s->streams[i];
4838 MOVTrack *track= &mov->tracks[i];
4839 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4842 track->enc = st->codec;
4843 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4844 if (track->language < 0)
4845 track->language = 0;
4846 track->mode = mov->mode;
4847 track->tag = mov_find_codec_tag(s, track);
4849 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4850 "codec not currently supported in container\n",
4851 avcodec_get_name(st->codec->codec_id), i);
4852 ret = AVERROR(EINVAL);
4855 /* If hinting of this track is enabled by a later hint track,
4856 * this is updated. */
4857 track->hint_track = -1;
4858 track->start_dts = AV_NOPTS_VALUE;
4859 track->start_cts = AV_NOPTS_VALUE;
4860 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4861 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4862 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4863 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4864 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4865 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4866 ret = AVERROR(EINVAL);
4869 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4871 if (mov->video_track_timescale) {
4872 track->timescale = mov->video_track_timescale;
4874 track->timescale = st->time_base.den;
4875 while(track->timescale < 10000)
4876 track->timescale *= 2;
4878 if (st->codec->width > 65535 || st->codec->height > 65535) {
4879 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4880 ret = AVERROR(EINVAL);
4883 if (track->mode == MODE_MOV && track->timescale > 100000)
4884 av_log(s, AV_LOG_WARNING,
4885 "WARNING codec timebase is very high. If duration is too long,\n"
4886 "file may not be playable by quicktime. Specify a shorter timebase\n"
4887 "or choose different container.\n");
4888 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4889 track->timescale = st->codec->sample_rate;
4890 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4891 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4892 track->audio_vbr = 1;
4893 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4894 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4895 st->codec->codec_id == AV_CODEC_ID_ILBC){
4896 if (!st->codec->block_align) {
4897 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4898 ret = AVERROR(EINVAL);
4901 track->sample_size = st->codec->block_align;
4902 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4903 track->audio_vbr = 1;
4905 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4907 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4908 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4909 track->audio_vbr = 1;
4911 if (track->mode != MODE_MOV &&
4912 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4913 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4914 i, track->enc->sample_rate);
4915 ret = AVERROR(EINVAL);
4918 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4919 track->timescale = st->time_base.den;
4920 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4921 track->timescale = st->time_base.den;
4923 track->timescale = MOV_TIMESCALE;
4926 track->height = st->codec->height;
4927 /* The ism specific timescale isn't mandatory, but is assumed by
4928 * some tools, such as mp4split. */
4929 if (mov->mode == MODE_ISM)
4930 track->timescale = 10000000;
4932 avpriv_set_pts_info(st, 64, 1, track->timescale);
4934 /* copy extradata if it exists */
4935 if (st->codec->extradata_size) {
4936 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4937 mov_create_dvd_sub_decoder_specific_info(track, st);
4938 else if (!TAG_IS_AVCI(track->tag)){
4939 track->vos_len = st->codec->extradata_size;
4940 track->vos_data = av_malloc(track->vos_len);
4941 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4946 for (i = 0; i < s->nb_streams; i++) {
4948 AVStream *st= s->streams[i];
4949 MOVTrack *track= &mov->tracks[i];
4951 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4952 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4955 for (j = 0; j < s->nb_streams; j++) {
4956 AVStream *stj= s->streams[j];
4957 MOVTrack *trackj= &mov->tracks[j];
4961 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4962 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4963 trackj->language != track->language ||
4964 trackj->tag != track->tag
4967 track->multichannel_as_mono++;
4974 if (mov->reserved_moov_size){
4975 mov->reserved_moov_pos= avio_tell(pb);
4976 if (mov->reserved_moov_size > 0)
4977 avio_skip(pb, mov->reserved_moov_size);
4980 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4981 /* If no fragmentation options have been set, set a default. */
4982 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4983 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4984 !mov->max_fragment_duration && !mov->max_fragment_size)
4985 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4987 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4988 mov->reserved_moov_pos = avio_tell(pb);
4989 mov_write_mdat_tag(pb, mov);
4992 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4993 mov->time = ff_iso8601_to_unix_time(t->value);
4995 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4997 if (mov->chapter_track)
4998 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5001 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5002 /* Initialize the hint tracks for each audio and video stream */
5003 for (i = 0; i < s->nb_streams; i++) {
5004 AVStream *st = s->streams[i];
5005 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5006 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5007 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5014 if (mov->nb_meta_tmcd) {
5015 /* Initialize the tmcd tracks */
5016 for (i = 0; i < s->nb_streams; i++) {
5017 AVStream *st = s->streams[i];
5020 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5022 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5025 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5034 if (mov->flags & FF_MOV_FLAG_ISML)
5035 mov_write_isml_manifest(pb, mov);
5037 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5038 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5039 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5042 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5043 mov->reserved_moov_pos = avio_tell(pb);
5052 static int get_moov_size(AVFormatContext *s)
5055 AVIOContext *moov_buf;
5056 MOVMuxContext *mov = s->priv_data;
5058 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5060 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5062 return ffio_close_null_buf(moov_buf);
5065 static int get_sidx_size(AVFormatContext *s)
5069 MOVMuxContext *mov = s->priv_data;
5071 if ((ret = ffio_open_null_buf(&buf)) < 0)
5073 mov_write_sidx_tags(buf, mov, -1, 0);
5074 return ffio_close_null_buf(buf);
5078 * This function gets the moov size if moved to the top of the file: the chunk
5079 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5080 * entries) when the moov is moved to the beginning, so the size of the moov
5081 * would change. It also updates the chunk offset tables.
5083 static int compute_moov_size(AVFormatContext *s)
5085 int i, moov_size, moov_size2;
5086 MOVMuxContext *mov = s->priv_data;
5088 moov_size = get_moov_size(s);
5092 for (i = 0; i < mov->nb_streams; i++)
5093 mov->tracks[i].data_offset += moov_size;
5095 moov_size2 = get_moov_size(s);
5099 /* if the size changed, we just switched from stco to co64 and need to
5100 * update the offsets */
5101 if (moov_size2 != moov_size)
5102 for (i = 0; i < mov->nb_streams; i++)
5103 mov->tracks[i].data_offset += moov_size2 - moov_size;
5108 static int compute_sidx_size(AVFormatContext *s)
5111 MOVMuxContext *mov = s->priv_data;
5113 sidx_size = get_sidx_size(s);
5117 for (i = 0; i < mov->nb_streams; i++)
5118 mov->tracks[i].data_offset += sidx_size;
5123 static int shift_data(AVFormatContext *s)
5125 int ret = 0, moov_size;
5126 MOVMuxContext *mov = s->priv_data;
5127 int64_t pos, pos_end = avio_tell(s->pb);
5128 uint8_t *buf, *read_buf[2];
5129 int read_buf_id = 0;
5131 AVIOContext *read_pb;
5133 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5134 moov_size = compute_sidx_size(s);
5136 moov_size = compute_moov_size(s);
5140 buf = av_malloc(moov_size * 2);
5142 return AVERROR(ENOMEM);
5144 read_buf[1] = buf + moov_size;
5146 /* Shift the data: the AVIO context of the output can only be used for
5147 * writing, so we re-open the same output, but for reading. It also avoids
5148 * a read/seek/write/seek back and forth. */
5150 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5152 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5153 "the second pass (faststart)\n", s->filename);
5157 /* mark the end of the shift to up to the last data we wrote, and get ready
5159 pos_end = avio_tell(s->pb);
5160 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
5162 /* start reading at where the new moov will be placed */
5163 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
5164 pos = avio_tell(read_pb);
5166 #define READ_BLOCK do { \
5167 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5171 /* shift data by chunk of at most moov_size */
5176 n = read_size[read_buf_id];
5179 avio_write(s->pb, read_buf[read_buf_id], n);
5181 } while (pos < pos_end);
5182 avio_close(read_pb);
5189 static int mov_write_trailer(AVFormatContext *s)
5191 MOVMuxContext *mov = s->priv_data;
5192 AVIOContext *pb = s->pb;
5198 * Before actually writing the trailer, make sure that there are no
5199 * dangling subtitles, that need a terminating sample.
5201 for (i = 0; i < mov->nb_streams; i++) {
5202 MOVTrack *trk = &mov->tracks[i];
5203 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5204 !trk->last_sample_is_subtitle_end) {
5205 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5206 trk->last_sample_is_subtitle_end = 1;
5210 // If there were no chapters when the header was written, but there
5211 // are chapters now, write them in the trailer. This only works
5212 // when we are not doing fragments.
5213 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5214 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5215 mov->chapter_track = mov->nb_streams++;
5216 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5221 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5222 moov_pos = avio_tell(pb);
5224 /* Write size of mdat tag */
5225 if (mov->mdat_size + 8 <= UINT32_MAX) {
5226 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5227 avio_wb32(pb, mov->mdat_size + 8);
5229 /* overwrite 'wide' placeholder atom */
5230 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5231 /* special value: real atom size will be 64 bit value after
5234 ffio_wfourcc(pb, "mdat");
5235 avio_wb64(pb, mov->mdat_size + 16);
5237 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
5239 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5240 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5241 res = shift_data(s);
5243 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5244 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5247 } else if (mov->reserved_moov_size > 0) {
5249 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5251 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
5253 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5254 res = AVERROR(EINVAL);
5257 avio_wb32(pb, size);
5258 ffio_wfourcc(pb, "free");
5259 ffio_fill(pb, 0, size - 8);
5260 avio_seek(pb, moov_pos, SEEK_SET);
5262 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5267 mov_auto_flush_fragment(s);
5268 for (i = 0; i < mov->nb_streams; i++)
5269 mov->tracks[i].data_offset = 0;
5270 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5271 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5272 res = shift_data(s);
5274 int64_t end = avio_tell(pb);
5275 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5276 mov_write_sidx_tags(pb, mov, -1, 0);
5277 avio_seek(pb, end, SEEK_SET);
5278 mov_write_mfra_tag(pb, mov);
5281 mov_write_mfra_tag(pb, mov);
5291 #if CONFIG_MOV_MUXER
5293 AVOutputFormat ff_mov_muxer = {
5295 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5296 .extensions = "mov",
5297 .priv_data_size = sizeof(MOVMuxContext),
5298 .audio_codec = AV_CODEC_ID_AAC,
5299 .video_codec = CONFIG_LIBX264_ENCODER ?
5300 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5301 .write_header = mov_write_header,
5302 .write_packet = mov_write_packet,
5303 .write_trailer = mov_write_trailer,
5304 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5305 .codec_tag = (const AVCodecTag* const []){
5306 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5308 .priv_class = &mov_muxer_class,
5311 #if CONFIG_TGP_MUXER
5313 AVOutputFormat ff_tgp_muxer = {
5315 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5316 .extensions = "3gp",
5317 .priv_data_size = sizeof(MOVMuxContext),
5318 .audio_codec = AV_CODEC_ID_AMR_NB,
5319 .video_codec = AV_CODEC_ID_H263,
5320 .write_header = mov_write_header,
5321 .write_packet = mov_write_packet,
5322 .write_trailer = mov_write_trailer,
5323 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5324 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5325 .priv_class = &tgp_muxer_class,
5328 #if CONFIG_MP4_MUXER
5330 AVOutputFormat ff_mp4_muxer = {
5332 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5333 .mime_type = "application/mp4",
5334 .extensions = "mp4",
5335 .priv_data_size = sizeof(MOVMuxContext),
5336 .audio_codec = AV_CODEC_ID_AAC,
5337 .video_codec = CONFIG_LIBX264_ENCODER ?
5338 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5339 .write_header = mov_write_header,
5340 .write_packet = mov_write_packet,
5341 .write_trailer = mov_write_trailer,
5342 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5343 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5344 .priv_class = &mp4_muxer_class,
5347 #if CONFIG_PSP_MUXER
5349 AVOutputFormat ff_psp_muxer = {
5351 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5352 .extensions = "mp4,psp",
5353 .priv_data_size = sizeof(MOVMuxContext),
5354 .audio_codec = AV_CODEC_ID_AAC,
5355 .video_codec = CONFIG_LIBX264_ENCODER ?
5356 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5357 .write_header = mov_write_header,
5358 .write_packet = mov_write_packet,
5359 .write_trailer = mov_write_trailer,
5360 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5361 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5362 .priv_class = &psp_muxer_class,
5365 #if CONFIG_TG2_MUXER
5367 AVOutputFormat ff_tg2_muxer = {
5369 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5370 .extensions = "3g2",
5371 .priv_data_size = sizeof(MOVMuxContext),
5372 .audio_codec = AV_CODEC_ID_AMR_NB,
5373 .video_codec = AV_CODEC_ID_H263,
5374 .write_header = mov_write_header,
5375 .write_packet = mov_write_packet,
5376 .write_trailer = mov_write_trailer,
5377 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5378 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5379 .priv_class = &tg2_muxer_class,
5382 #if CONFIG_IPOD_MUXER
5384 AVOutputFormat ff_ipod_muxer = {
5386 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5387 .mime_type = "application/mp4",
5388 .extensions = "m4v,m4a",
5389 .priv_data_size = sizeof(MOVMuxContext),
5390 .audio_codec = AV_CODEC_ID_AAC,
5391 .video_codec = AV_CODEC_ID_H264,
5392 .write_header = mov_write_header,
5393 .write_packet = mov_write_packet,
5394 .write_trailer = mov_write_trailer,
5395 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5396 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5397 .priv_class = &ipod_muxer_class,
5400 #if CONFIG_ISMV_MUXER
5402 AVOutputFormat ff_ismv_muxer = {
5404 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5405 .mime_type = "application/mp4",
5406 .extensions = "ismv,isma",
5407 .priv_data_size = sizeof(MOVMuxContext),
5408 .audio_codec = AV_CODEC_ID_AAC,
5409 .video_codec = AV_CODEC_ID_H264,
5410 .write_header = mov_write_header,
5411 .write_packet = mov_write_packet,
5412 .write_trailer = mov_write_trailer,
5413 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5414 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5415 .priv_class = &ismv_muxer_class,
5418 #if CONFIG_F4V_MUXER
5420 AVOutputFormat ff_f4v_muxer = {
5422 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5423 .mime_type = "application/f4v",
5424 .extensions = "f4v",
5425 .priv_data_size = sizeof(MOVMuxContext),
5426 .audio_codec = AV_CODEC_ID_AAC,
5427 .video_codec = AV_CODEC_ID_H264,
5428 .write_header = mov_write_header,
5429 .write_packet = mov_write_packet,
5430 .write_trailer = mov_write_trailer,
5431 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5432 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5433 .priv_class = &f4v_muxer_class,