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++)
1083 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1086 ffio_wfourcc(pb, "DpxE");
1087 if (track->enc->extradata_size >= 12 &&
1088 !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1089 avio_wb32(pb, track->enc->extradata[11]);
1096 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1098 int tag = track->enc->codec_tag;
1100 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1103 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1104 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1105 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1106 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1107 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1108 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1109 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1110 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1111 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1112 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1117 static const AVCodecTag codec_ipod_tags[] = {
1118 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1119 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1120 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1121 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1122 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1123 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1124 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1125 { AV_CODEC_ID_NONE, 0 },
1128 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1130 int tag = track->enc->codec_tag;
1132 // keep original tag for subs, ipod supports both formats
1133 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1134 (tag == MKTAG('t', 'x', '3', 'g') ||
1135 tag == MKTAG('t', 'e', 'x', 't'))))
1136 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1138 if (!av_match_ext(s->filename, "m4a") &&
1139 !av_match_ext(s->filename, "m4b") &&
1140 !av_match_ext(s->filename, "m4v"))
1141 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1142 "Quicktime/Ipod might not play the file\n");
1147 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1151 if (track->enc->width == 720) { /* SD */
1152 if (track->enc->height == 480) { /* NTSC */
1153 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1154 else tag = MKTAG('d','v','c',' ');
1155 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1156 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1157 else tag = MKTAG('d','v','p','p');
1158 } else if (track->enc->height == 720) { /* HD 720 line */
1159 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1160 else tag = MKTAG('d','v','h','p');
1161 } else if (track->enc->height == 1080) { /* HD 1080 line */
1162 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1163 else tag = MKTAG('d','v','h','6');
1165 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1172 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1174 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1175 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1176 if (av_timecode_check_frame_rate(rate) < 0) {
1177 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1178 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1179 rate = st->avg_frame_rate;
1185 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1187 int tag = track->enc->codec_tag;
1188 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1189 AVStream *st = track->st;
1190 int rate = av_q2d(find_fps(s, st));
1193 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1195 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1196 if (track->enc->width == 1280 && track->enc->height == 720) {
1198 if (rate == 24) tag = MKTAG('x','d','v','4');
1199 else if (rate == 25) tag = MKTAG('x','d','v','5');
1200 else if (rate == 30) tag = MKTAG('x','d','v','1');
1201 else if (rate == 50) tag = MKTAG('x','d','v','a');
1202 else if (rate == 60) tag = MKTAG('x','d','v','9');
1204 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1206 if (rate == 24) tag = MKTAG('x','d','v','6');
1207 else if (rate == 25) tag = MKTAG('x','d','v','7');
1208 else if (rate == 30) tag = MKTAG('x','d','v','8');
1210 if (rate == 25) tag = MKTAG('x','d','v','3');
1211 else if (rate == 30) tag = MKTAG('x','d','v','2');
1213 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1215 if (rate == 24) tag = MKTAG('x','d','v','d');
1216 else if (rate == 25) tag = MKTAG('x','d','v','e');
1217 else if (rate == 30) tag = MKTAG('x','d','v','f');
1219 if (rate == 25) tag = MKTAG('x','d','v','c');
1220 else if (rate == 30) tag = MKTAG('x','d','v','b');
1223 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1224 if (track->enc->width == 1280 && track->enc->height == 720) {
1226 if (rate == 24) tag = MKTAG('x','d','5','4');
1227 else if (rate == 25) tag = MKTAG('x','d','5','5');
1228 else if (rate == 30) tag = MKTAG('x','d','5','1');
1229 else if (rate == 50) tag = MKTAG('x','d','5','a');
1230 else if (rate == 60) tag = MKTAG('x','d','5','9');
1232 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1234 if (rate == 24) tag = MKTAG('x','d','5','d');
1235 else if (rate == 25) tag = MKTAG('x','d','5','e');
1236 else if (rate == 30) tag = MKTAG('x','d','5','f');
1238 if (rate == 25) tag = MKTAG('x','d','5','c');
1239 else if (rate == 30) tag = MKTAG('x','d','5','b');
1247 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1249 int tag = track->enc->codec_tag;
1250 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1251 AVStream *st = track->st;
1252 int rate = av_q2d(find_fps(s, st));
1255 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1257 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1258 if (track->enc->width == 960 && track->enc->height == 720) {
1260 if (rate == 24) tag = MKTAG('a','i','5','p');
1261 else if (rate == 25) tag = MKTAG('a','i','5','q');
1262 else if (rate == 30) tag = MKTAG('a','i','5','p');
1263 else if (rate == 50) tag = MKTAG('a','i','5','q');
1264 else if (rate == 60) tag = MKTAG('a','i','5','p');
1266 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1268 if (rate == 24) tag = MKTAG('a','i','5','3');
1269 else if (rate == 25) tag = MKTAG('a','i','5','2');
1270 else if (rate == 30) tag = MKTAG('a','i','5','3');
1272 if (rate == 50) tag = MKTAG('a','i','5','5');
1273 else if (rate == 60) tag = MKTAG('a','i','5','6');
1276 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1277 if (track->enc->width == 1280 && track->enc->height == 720) {
1279 if (rate == 24) tag = MKTAG('a','i','1','p');
1280 else if (rate == 25) tag = MKTAG('a','i','1','q');
1281 else if (rate == 30) tag = MKTAG('a','i','1','p');
1282 else if (rate == 50) tag = MKTAG('a','i','1','q');
1283 else if (rate == 60) tag = MKTAG('a','i','1','p');
1285 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1287 if (rate == 24) tag = MKTAG('a','i','1','3');
1288 else if (rate == 25) tag = MKTAG('a','i','1','2');
1289 else if (rate == 30) tag = MKTAG('a','i','1','3');
1291 if (rate == 25) tag = MKTAG('a','i','1','5');
1292 else if (rate == 50) tag = MKTAG('a','i','1','5');
1293 else if (rate == 60) tag = MKTAG('a','i','1','6');
1295 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1296 || track->enc->width == 3840 && track->enc->height == 2160
1297 || track->enc->width == 2048 && track->enc->height == 1080) {
1298 tag = MKTAG('a','i','v','x');
1305 static const struct {
1306 enum AVPixelFormat pix_fmt;
1309 } mov_pix_fmt_tags[] = {
1310 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1311 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1312 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1313 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1314 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1315 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1316 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1317 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1318 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1319 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1320 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1321 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1322 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1323 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1324 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1327 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1329 int tag = track->enc->codec_tag;
1331 enum AVPixelFormat pix_fmt;
1333 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1334 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1335 tag = mov_pix_fmt_tags[i].tag;
1336 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1337 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1342 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1343 track->enc->bits_per_coded_sample);
1344 if (tag == MKTAG('r','a','w',' ') &&
1345 track->enc->pix_fmt != pix_fmt &&
1346 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1347 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1348 av_get_pix_fmt_name(track->enc->pix_fmt));
1352 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1354 int tag = track->enc->codec_tag;
1356 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1357 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1358 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1359 track->enc->codec_id == AV_CODEC_ID_H263 ||
1360 track->enc->codec_id == AV_CODEC_ID_H264 ||
1361 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1362 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1363 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1364 tag = mov_get_dv_codec_tag(s, track);
1365 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1366 tag = mov_get_rawvideo_codec_tag(s, track);
1367 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1368 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1369 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1370 tag = mov_get_h264_codec_tag(s, track);
1371 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1372 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1373 if (!tag) { // if no mac fcc found, try with Microsoft tags
1374 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1376 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1377 "the file may be unplayable!\n");
1379 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1380 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1381 if (!tag) { // if no mac fcc found, try with Microsoft tags
1382 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1384 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1385 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1386 "the file may be unplayable!\n");
1389 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1390 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1396 static const AVCodecTag codec_3gp_tags[] = {
1397 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1398 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1399 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1400 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1401 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1402 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1403 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1404 { AV_CODEC_ID_NONE, 0 },
1407 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1408 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1409 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1410 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1411 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1412 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1413 { AV_CODEC_ID_NONE, 0 },
1416 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1420 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1421 tag = mp4_get_codec_tag(s, track);
1422 else if (track->mode == MODE_ISM) {
1423 tag = mp4_get_codec_tag(s, track);
1424 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1425 tag = MKTAG('w', 'm', 'a', ' ');
1426 } else if (track->mode == MODE_IPOD)
1427 tag = ipod_get_codec_tag(s, track);
1428 else if (track->mode & MODE_3GP)
1429 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1430 else if (track->mode == MODE_F4V)
1431 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1433 tag = mov_get_codec_tag(s, track);
1438 /** Write uuid atom.
1439 * Needed to make file play in iPods running newest firmware
1440 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1442 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1445 ffio_wfourcc(pb, "uuid");
1446 avio_wb32(pb, 0x6b6840f2);
1447 avio_wb32(pb, 0x5f244fc5);
1448 avio_wb32(pb, 0xba39a51b);
1449 avio_wb32(pb, 0xcf0323f3);
1454 static const uint16_t fiel_data[] = {
1455 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1458 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1460 unsigned mov_field_order = 0;
1461 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1462 mov_field_order = fiel_data[track->enc->field_order];
1466 ffio_wfourcc(pb, "fiel");
1467 avio_wb16(pb, mov_field_order);
1471 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1473 int64_t pos = avio_tell(pb);
1474 avio_wb32(pb, 0); /* size */
1475 avio_wl32(pb, track->tag); // store it byteswapped
1476 avio_wb32(pb, 0); /* Reserved */
1477 avio_wb16(pb, 0); /* Reserved */
1478 avio_wb16(pb, 1); /* Data-reference index */
1480 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1481 mov_write_esds_tag(pb, track);
1482 else if (track->enc->extradata_size)
1483 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1485 return update_size(pb, pos);
1488 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1491 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1492 track->enc->sample_aspect_ratio.den, INT_MAX);
1495 ffio_wfourcc(pb, "pasp");
1496 avio_wb32(pb, sar.num);
1497 avio_wb32(pb, sar.den);
1501 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1503 // Ref: https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1505 if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1506 track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1507 track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1508 if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1509 || (track->enc->width == 1280 && track->enc->height == 720)) {
1510 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1511 track->enc->color_primaries = AVCOL_PRI_BT709;
1512 } else if (track->enc->width == 720 && track->height == 576) {
1513 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1514 track->enc->color_primaries = AVCOL_PRI_BT470BG;
1515 } else if (track->enc->width == 720 &&
1516 (track->height == 486 || track->height == 480)) {
1517 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1518 track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
1520 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1522 switch (track->enc->color_primaries) {
1523 case AVCOL_PRI_BT709:
1524 track->enc->color_trc = AVCOL_TRC_BT709;
1525 track->enc->colorspace = AVCOL_SPC_BT709;
1527 case AVCOL_PRI_SMPTE170M:
1528 case AVCOL_PRI_BT470BG:
1529 track->enc->color_trc = AVCOL_TRC_BT709;
1530 track->enc->colorspace = AVCOL_SPC_SMPTE170M;
1536 ffio_wfourcc(pb, "colr");
1537 ffio_wfourcc(pb, "nclc");
1538 switch (track->enc->color_primaries) {
1539 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1540 case AVCOL_PRI_SMPTE170M:
1541 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1542 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1543 default: avio_wb16(pb, 2);
1545 switch (track->enc->color_trc) {
1546 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1547 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1548 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1549 default: avio_wb16(pb, 2);
1551 switch (track->enc->colorspace) {
1552 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1553 case AVCOL_PRI_SMPTE170M: avio_wb16(pb, 6); break;
1554 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 7); break;
1555 default: avio_wb16(pb, 2);
1561 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1563 AVDictionaryEntry *encoder;
1564 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1565 || (track->enc->width == 1440 && track->enc->height == 1080)
1566 || (track->enc->width == 1920 && track->enc->height == 1080);
1568 if (track->mode == MODE_MOV &&
1569 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1570 av_strlcpy(compressor_name, encoder->value, 32);
1571 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1572 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1573 AVStream *st = track->st;
1574 int rate = av_q2d(find_fps(NULL, st));
1575 av_strlcatf(compressor_name, len, "XDCAM");
1576 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1577 av_strlcatf(compressor_name, len, " HD422");
1578 } else if(track->enc->width == 1440) {
1579 av_strlcatf(compressor_name, len, " HD");
1581 av_strlcatf(compressor_name, len, " EX");
1583 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1585 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1589 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1591 int64_t pos = avio_tell(pb);
1592 char compressor_name[32] = { 0 };
1595 avio_wb32(pb, 0); /* size */
1596 avio_wl32(pb, track->tag); // store it byteswapped
1597 avio_wb32(pb, 0); /* Reserved */
1598 avio_wb16(pb, 0); /* Reserved */
1599 avio_wb16(pb, 1); /* Data-reference index */
1601 avio_wb16(pb, 0); /* Codec stream version */
1602 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1603 if (track->mode == MODE_MOV) {
1604 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1605 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1606 avio_wb32(pb, 0); /* Temporal Quality */
1607 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1609 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1610 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1613 avio_wb32(pb, 0); /* Reserved */
1614 avio_wb32(pb, 0); /* Reserved */
1615 avio_wb32(pb, 0); /* Reserved */
1617 avio_wb16(pb, track->enc->width); /* Video width */
1618 avio_wb16(pb, track->height); /* Video height */
1619 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1620 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1621 avio_wb32(pb, 0); /* Data size (= 0) */
1622 avio_wb16(pb, 1); /* Frame count (= 1) */
1624 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1625 find_compressor(compressor_name, 32, track);
1626 avio_w8(pb, strlen(compressor_name));
1627 avio_write(pb, compressor_name, 31);
1629 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1630 avio_wb16(pb, track->enc->bits_per_coded_sample);
1632 avio_wb16(pb, 0x18); /* Reserved */
1633 avio_wb16(pb, 0xffff); /* Reserved */
1634 if (track->tag == MKTAG('m','p','4','v'))
1635 mov_write_esds_tag(pb, track);
1636 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1637 mov_write_d263_tag(pb);
1638 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1639 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1640 mov_write_extradata_tag(pb, track);
1642 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1643 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 /* extra padding for avid stsd */
1678 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1682 return update_size(pb, pos);
1685 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1687 int64_t pos = avio_tell(pb);
1688 avio_wb32(pb, 0); /* size */
1689 ffio_wfourcc(pb, "rtp ");
1690 avio_wb32(pb, 0); /* Reserved */
1691 avio_wb16(pb, 0); /* Reserved */
1692 avio_wb16(pb, 1); /* Data-reference index */
1694 avio_wb16(pb, 1); /* Hint track version */
1695 avio_wb16(pb, 1); /* Highest compatible version */
1696 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1698 avio_wb32(pb, 12); /* size */
1699 ffio_wfourcc(pb, "tims");
1700 avio_wb32(pb, track->timescale);
1702 return update_size(pb, pos);
1705 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1707 uint64_t str_size =strlen(reel_name);
1708 int64_t pos = avio_tell(pb);
1710 if (str_size >= UINT16_MAX){
1711 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1713 return AVERROR(EINVAL);
1716 avio_wb32(pb, 0); /* size */
1717 ffio_wfourcc(pb, "name"); /* Data format */
1718 avio_wb16(pb, str_size); /* string size */
1719 avio_wb16(pb, track->language); /* langcode */
1720 avio_write(pb, reel_name, str_size); /* reel name */
1721 return update_size(pb,pos);
1724 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1726 int64_t pos = avio_tell(pb);
1728 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1729 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1730 AVDictionaryEntry *t = NULL;
1732 if (nb_frames > 255) {
1733 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1734 return AVERROR(EINVAL);
1737 avio_wb32(pb, 0); /* size */
1738 ffio_wfourcc(pb, "tmcd"); /* Data format */
1739 avio_wb32(pb, 0); /* Reserved */
1740 avio_wb32(pb, 1); /* Data reference index */
1741 avio_wb32(pb, 0); /* Flags */
1742 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1743 avio_wb32(pb, track->timescale); /* Timescale */
1744 avio_wb32(pb, frame_duration); /* Frame duration */
1745 avio_w8(pb, nb_frames); /* Number of frames */
1746 avio_w8(pb, 0); /* Reserved */
1749 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1751 if (t && utf8len(t->value))
1752 mov_write_source_reference_tag(pb, track, t->value);
1754 avio_wb16(pb, 0); /* zero size */
1757 avio_wb32(pb, 0); /* size */
1758 ffio_wfourcc(pb, "tmcd"); /* Data format */
1759 avio_wb32(pb, 0); /* Reserved */
1760 avio_wb32(pb, 1); /* Data reference index */
1761 if (track->enc->extradata_size)
1762 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1764 return update_size(pb, pos);
1767 static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1769 int64_t pos = avio_tell(pb);
1770 avio_wb32(pb, 0); /* size */
1771 ffio_wfourcc(pb, "stsd");
1772 avio_wb32(pb, 0); /* version & flags */
1773 avio_wb32(pb, 1); /* entry count */
1774 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1775 mov_write_video_tag(pb, mov, track);
1776 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1777 mov_write_audio_tag(pb, track);
1778 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1779 mov_write_subtitle_tag(pb, track);
1780 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1781 mov_write_rtp_tag(pb, track);
1782 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1783 mov_write_tmcd_tag(pb, track);
1784 return update_size(pb, pos);
1787 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1789 MOVStts *ctts_entries;
1790 uint32_t entries = 0;
1794 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1796 return AVERROR(ENOMEM);
1797 ctts_entries[0].count = 1;
1798 ctts_entries[0].duration = track->cluster[0].cts;
1799 for (i = 1; i < track->entry; i++) {
1800 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1801 ctts_entries[entries].count++; /* compress */
1804 ctts_entries[entries].duration = track->cluster[i].cts;
1805 ctts_entries[entries].count = 1;
1808 entries++; /* last one */
1809 atom_size = 16 + (entries * 8);
1810 avio_wb32(pb, atom_size); /* size */
1811 ffio_wfourcc(pb, "ctts");
1812 avio_wb32(pb, 0); /* version & flags */
1813 avio_wb32(pb, entries); /* entry count */
1814 for (i = 0; i < entries; i++) {
1815 avio_wb32(pb, ctts_entries[i].count);
1816 avio_wb32(pb, ctts_entries[i].duration);
1818 av_free(ctts_entries);
1822 /* Time to sample atom */
1823 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1825 MOVStts *stts_entries;
1826 uint32_t entries = -1;
1830 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1831 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1833 return AVERROR(ENOMEM);
1834 stts_entries[0].count = track->sample_count;
1835 stts_entries[0].duration = 1;
1838 stts_entries = track->entry ?
1839 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1841 if (track->entry && !stts_entries)
1842 return AVERROR(ENOMEM);
1843 for (i = 0; i < track->entry; i++) {
1844 int duration = get_cluster_duration(track, i);
1845 if (i && duration == stts_entries[entries].duration) {
1846 stts_entries[entries].count++; /* compress */
1849 stts_entries[entries].duration = duration;
1850 stts_entries[entries].count = 1;
1853 entries++; /* last one */
1855 atom_size = 16 + (entries * 8);
1856 avio_wb32(pb, atom_size); /* size */
1857 ffio_wfourcc(pb, "stts");
1858 avio_wb32(pb, 0); /* version & flags */
1859 avio_wb32(pb, entries); /* entry count */
1860 for (i = 0; i < entries; i++) {
1861 avio_wb32(pb, stts_entries[i].count);
1862 avio_wb32(pb, stts_entries[i].duration);
1864 av_free(stts_entries);
1868 static int mov_write_dref_tag(AVIOContext *pb)
1870 avio_wb32(pb, 28); /* size */
1871 ffio_wfourcc(pb, "dref");
1872 avio_wb32(pb, 0); /* version & flags */
1873 avio_wb32(pb, 1); /* entry count */
1875 avio_wb32(pb, 0xc); /* size */
1876 //FIXME add the alis and rsrc atom
1877 ffio_wfourcc(pb, "url ");
1878 avio_wb32(pb, 1); /* version & flags */
1883 static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1885 int64_t pos = avio_tell(pb);
1888 avio_wb32(pb, 0); /* size */
1889 ffio_wfourcc(pb, "stbl");
1890 mov_write_stsd_tag(pb, mov, track);
1891 mov_write_stts_tag(pb, track);
1892 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1893 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1894 track->has_keyframes && track->has_keyframes < track->entry)
1895 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1896 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1897 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1898 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1899 track->flags & MOV_TRACK_CTTS && track->entry) {
1901 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1904 mov_write_stsc_tag(pb, track);
1905 mov_write_stsz_tag(pb, track);
1906 mov_write_stco_tag(pb, track);
1907 return update_size(pb, pos);
1910 static int mov_write_dinf_tag(AVIOContext *pb)
1912 int64_t pos = avio_tell(pb);
1913 avio_wb32(pb, 0); /* size */
1914 ffio_wfourcc(pb, "dinf");
1915 mov_write_dref_tag(pb);
1916 return update_size(pb, pos);
1919 static int mov_write_nmhd_tag(AVIOContext *pb)
1922 ffio_wfourcc(pb, "nmhd");
1927 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1929 int64_t pos = avio_tell(pb);
1930 const char *font = "Lucida Grande";
1931 avio_wb32(pb, 0); /* size */
1932 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1933 avio_wb32(pb, 0); /* version & flags */
1934 avio_wb16(pb, 0); /* text font */
1935 avio_wb16(pb, 0); /* text face */
1936 avio_wb16(pb, 12); /* text size */
1937 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1938 avio_wb16(pb, 0x0000); /* text color (red) */
1939 avio_wb16(pb, 0x0000); /* text color (green) */
1940 avio_wb16(pb, 0x0000); /* text color (blue) */
1941 avio_wb16(pb, 0xffff); /* background color (red) */
1942 avio_wb16(pb, 0xffff); /* background color (green) */
1943 avio_wb16(pb, 0xffff); /* background color (blue) */
1944 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1945 avio_write(pb, font, strlen(font)); /* font name */
1946 return update_size(pb, pos);
1949 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1951 int64_t pos = avio_tell(pb);
1952 avio_wb32(pb, 0); /* size */
1953 ffio_wfourcc(pb, "gmhd");
1954 avio_wb32(pb, 0x18); /* gmin size */
1955 ffio_wfourcc(pb, "gmin");/* generic media info */
1956 avio_wb32(pb, 0); /* version & flags */
1957 avio_wb16(pb, 0x40); /* graphics mode = */
1958 avio_wb16(pb, 0x8000); /* opColor (r?) */
1959 avio_wb16(pb, 0x8000); /* opColor (g?) */
1960 avio_wb16(pb, 0x8000); /* opColor (b?) */
1961 avio_wb16(pb, 0); /* balance */
1962 avio_wb16(pb, 0); /* reserved */
1965 * This special text atom is required for
1966 * Apple Quicktime chapters. The contents
1967 * don't appear to be documented, so the
1968 * bytes are copied verbatim.
1970 if (track->tag != MKTAG('c','6','0','8')) {
1971 avio_wb32(pb, 0x2C); /* size */
1972 ffio_wfourcc(pb, "text");
1973 avio_wb16(pb, 0x01);
1974 avio_wb32(pb, 0x00);
1975 avio_wb32(pb, 0x00);
1976 avio_wb32(pb, 0x00);
1977 avio_wb32(pb, 0x01);
1978 avio_wb32(pb, 0x00);
1979 avio_wb32(pb, 0x00);
1980 avio_wb32(pb, 0x00);
1981 avio_wb32(pb, 0x00004000);
1982 avio_wb16(pb, 0x0000);
1985 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1986 int64_t tmcd_pos = avio_tell(pb);
1987 avio_wb32(pb, 0); /* size */
1988 ffio_wfourcc(pb, "tmcd");
1989 mov_write_tcmi_tag(pb, track);
1990 update_size(pb, tmcd_pos);
1992 return update_size(pb, pos);
1995 static int mov_write_smhd_tag(AVIOContext *pb)
1997 avio_wb32(pb, 16); /* size */
1998 ffio_wfourcc(pb, "smhd");
1999 avio_wb32(pb, 0); /* version & flags */
2000 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2001 avio_wb16(pb, 0); /* reserved */
2005 static int mov_write_vmhd_tag(AVIOContext *pb)
2007 avio_wb32(pb, 0x14); /* size (always 0x14) */
2008 ffio_wfourcc(pb, "vmhd");
2009 avio_wb32(pb, 0x01); /* version & flags */
2010 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2014 static int is_clcp_track(MOVTrack *track)
2016 return track->tag == MKTAG('c','7','0','8') ||
2017 track->tag == MKTAG('c','6','0','8');
2020 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2022 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2023 int64_t pos = avio_tell(pb);
2027 descr = "DataHandler";
2030 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2031 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2033 descr = "VideoHandler";
2034 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2036 descr = "SoundHandler";
2037 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2038 if (is_clcp_track(track)) {
2040 descr = "ClosedCaptionHandler";
2042 if (track->tag == MKTAG('t','x','3','g')) {
2044 } else if (track->tag == MKTAG('m','p','4','s')) {
2049 descr = "SubtitleHandler";
2051 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2053 descr = "HintHandler";
2054 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2056 descr = "TimeCodeHandler";
2059 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2060 track->enc->codec_tag);
2062 av_log(track->enc, AV_LOG_WARNING,
2063 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2064 tag_buf, track->enc->codec_tag);
2067 // hdlr.name is used by some players to identify the content title
2068 // of the track. So if an alternate handler description is
2069 // specified, use it.
2070 AVDictionaryEntry *t;
2071 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2072 if (t && utf8len(t->value))
2077 avio_wb32(pb, 0); /* size */
2078 ffio_wfourcc(pb, "hdlr");
2079 avio_wb32(pb, 0); /* Version & flags */
2080 avio_write(pb, hdlr, 4); /* handler */
2081 ffio_wfourcc(pb, hdlr_type); /* handler type */
2082 avio_wb32(pb, 0); /* reserved */
2083 avio_wb32(pb, 0); /* reserved */
2084 avio_wb32(pb, 0); /* reserved */
2085 if (!track || track->mode == MODE_MOV)
2086 avio_w8(pb, strlen(descr)); /* pascal string */
2087 avio_write(pb, descr, strlen(descr)); /* handler description */
2088 if (track && track->mode != MODE_MOV)
2089 avio_w8(pb, 0); /* c string */
2090 return update_size(pb, pos);
2093 static int mov_write_hmhd_tag(AVIOContext *pb)
2095 /* This atom must be present, but leaving the values at zero
2096 * seems harmless. */
2097 avio_wb32(pb, 28); /* size */
2098 ffio_wfourcc(pb, "hmhd");
2099 avio_wb32(pb, 0); /* version, flags */
2100 avio_wb16(pb, 0); /* maxPDUsize */
2101 avio_wb16(pb, 0); /* avgPDUsize */
2102 avio_wb32(pb, 0); /* maxbitrate */
2103 avio_wb32(pb, 0); /* avgbitrate */
2104 avio_wb32(pb, 0); /* reserved */
2108 static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2110 int64_t pos = avio_tell(pb);
2113 avio_wb32(pb, 0); /* size */
2114 ffio_wfourcc(pb, "minf");
2115 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2116 mov_write_vmhd_tag(pb);
2117 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2118 mov_write_smhd_tag(pb);
2119 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2120 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2121 mov_write_gmhd_tag(pb, track);
2123 mov_write_nmhd_tag(pb);
2125 } else if (track->tag == MKTAG('r','t','p',' ')) {
2126 mov_write_hmhd_tag(pb);
2127 } else if (track->tag == MKTAG('t','m','c','d')) {
2128 mov_write_gmhd_tag(pb, track);
2130 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2131 mov_write_hdlr_tag(pb, NULL);
2132 mov_write_dinf_tag(pb);
2133 if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2135 return update_size(pb, pos);
2138 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2141 int version = track->track_duration < INT32_MAX ? 0 : 1;
2143 if (track->mode == MODE_ISM)
2146 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2147 ffio_wfourcc(pb, "mdhd");
2148 avio_w8(pb, version);
2149 avio_wb24(pb, 0); /* flags */
2151 avio_wb64(pb, track->time);
2152 avio_wb64(pb, track->time);
2154 avio_wb32(pb, track->time); /* creation time */
2155 avio_wb32(pb, track->time); /* modification time */
2157 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2158 if (!track->entry && mov->mode == MODE_ISM)
2159 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2160 else if (!track->entry)
2161 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2163 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2164 avio_wb16(pb, track->language); /* language */
2165 avio_wb16(pb, 0); /* reserved (quality) */
2167 if (version != 0 && track->mode == MODE_MOV) {
2168 av_log(NULL, AV_LOG_ERROR,
2169 "FATAL error, file duration too long for timebase, this file will not be\n"
2170 "playable with quicktime. Choose a different timebase or a different\n"
2171 "container format\n");
2177 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2180 int64_t pos = avio_tell(pb);
2183 avio_wb32(pb, 0); /* size */
2184 ffio_wfourcc(pb, "mdia");
2185 mov_write_mdhd_tag(pb, mov, track);
2186 mov_write_hdlr_tag(pb, track);
2187 if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2189 return update_size(pb, pos);
2192 /* transformation matrix
2196 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2197 int16_t d, int16_t tx, int16_t ty)
2199 avio_wb32(pb, a << 16); /* 16.16 format */
2200 avio_wb32(pb, b << 16); /* 16.16 format */
2201 avio_wb32(pb, 0); /* u in 2.30 format */
2202 avio_wb32(pb, c << 16); /* 16.16 format */
2203 avio_wb32(pb, d << 16); /* 16.16 format */
2204 avio_wb32(pb, 0); /* v in 2.30 format */
2205 avio_wb32(pb, tx << 16); /* 16.16 format */
2206 avio_wb32(pb, ty << 16); /* 16.16 format */
2207 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2210 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2211 MOVTrack *track, AVStream *st)
2213 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2214 track->timescale, AV_ROUND_UP);
2215 int version = duration < INT32_MAX ? 0 : 1;
2216 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2222 if (mov->per_stream_grouping)
2225 group = st->codec->codec_type;
2228 if (track->flags & MOV_TRACK_ENABLED)
2229 flags |= MOV_TKHD_FLAG_ENABLED;
2231 if (track->mode == MODE_ISM)
2234 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2235 ffio_wfourcc(pb, "tkhd");
2236 avio_w8(pb, version);
2237 avio_wb24(pb, flags);
2239 avio_wb64(pb, track->time);
2240 avio_wb64(pb, track->time);
2242 avio_wb32(pb, track->time); /* creation time */
2243 avio_wb32(pb, track->time); /* modification time */
2245 avio_wb32(pb, track->track_id); /* track-id */
2246 avio_wb32(pb, 0); /* reserved */
2247 if (!track->entry && mov->mode == MODE_ISM)
2248 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2249 else if (!track->entry)
2250 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2252 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2254 avio_wb32(pb, 0); /* reserved */
2255 avio_wb32(pb, 0); /* reserved */
2256 avio_wb16(pb, 0); /* layer */
2257 avio_wb16(pb, group); /* alternate group) */
2258 /* Volume, only for audio */
2259 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2260 avio_wb16(pb, 0x0100);
2263 avio_wb16(pb, 0); /* reserved */
2265 /* Matrix structure */
2266 if (st && st->metadata) {
2267 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2268 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2270 if (rotation == 90) {
2271 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2272 } else if (rotation == 180) {
2273 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2274 } else if (rotation == 270) {
2275 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2277 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2279 /* Track width and height, for visual only */
2280 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2281 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2282 if (track->mode == MODE_MOV) {
2283 avio_wb32(pb, track->enc->width << 16);
2284 avio_wb32(pb, track->height << 16);
2286 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2287 if (!sample_aspect_ratio || track->height != track->enc->height)
2288 sample_aspect_ratio = 1;
2289 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2290 avio_wb32(pb, track->height * 0x10000);
2299 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2301 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2302 track->enc->sample_aspect_ratio.den);
2304 int64_t pos = avio_tell(pb);
2306 avio_wb32(pb, 0); /* size */
2307 ffio_wfourcc(pb, "tapt");
2310 ffio_wfourcc(pb, "clef");
2312 avio_wb32(pb, width << 16);
2313 avio_wb32(pb, track->enc->height << 16);
2316 ffio_wfourcc(pb, "prof");
2318 avio_wb32(pb, width << 16);
2319 avio_wb32(pb, track->enc->height << 16);
2322 ffio_wfourcc(pb, "enof");
2324 avio_wb32(pb, track->enc->width << 16);
2325 avio_wb32(pb, track->enc->height << 16);
2327 return update_size(pb, pos);
2330 // This box seems important for the psp playback ... without it the movie seems to hang
2331 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2334 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2335 track->timescale, AV_ROUND_UP);
2336 int version = duration < INT32_MAX ? 0 : 1;
2337 int entry_size, entry_count, size;
2338 int64_t delay, start_ct = track->start_cts;
2339 int64_t start_dts = track->start_dts;
2342 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2344 av_log(mov->fc, AV_LOG_DEBUG,
2345 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2346 track->cluster[0].dts, track->cluster[0].cts,
2347 start_dts, start_ct, track->track_id);
2348 start_dts = track->cluster[0].dts;
2349 start_ct = track->cluster[0].cts;
2353 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2354 track->timescale, AV_ROUND_DOWN);
2355 version |= delay < INT32_MAX ? 0 : 1;
2357 entry_size = (version == 1) ? 20 : 12;
2358 entry_count = 1 + (delay > 0);
2359 size = 24 + entry_count * entry_size;
2361 /* write the atom data */
2362 avio_wb32(pb, size);
2363 ffio_wfourcc(pb, "edts");
2364 avio_wb32(pb, size - 8);
2365 ffio_wfourcc(pb, "elst");
2366 avio_w8(pb, version);
2367 avio_wb24(pb, 0); /* flags */
2369 avio_wb32(pb, entry_count);
2370 if (delay > 0) { /* add an empty edit to delay presentation */
2371 /* In the positive delay case, the delay includes the cts
2372 * offset, and the second edit list entry below trims out
2373 * the same amount from the actual content. This makes sure
2374 * that the offsetted last sample is included in the edit
2375 * list duration as well. */
2377 avio_wb64(pb, delay);
2380 avio_wb32(pb, delay);
2383 avio_wb32(pb, 0x00010000);
2385 /* Avoid accidentally ending up with start_ct = -1 which has got a
2386 * special meaning. Normally start_ct should end up positive or zero
2387 * here, but use FFMIN in case dts is a a small positive integer
2388 * rounded to 0 when represented in MOV_TIMESCALE units. */
2389 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2390 start_ct = -FFMIN(start_dts, 0);
2391 /* Note, this delay is calculated from the pts of the first sample,
2392 * ensuring that we don't reduce the duration for cases with
2397 /* For fragmented files, we don't know the full length yet. Setting
2398 * duration to 0 allows us to only specify the offset, including
2399 * the rest of the content (from all future fragments) without specifying
2400 * an explicit duration. */
2401 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2406 avio_wb64(pb, duration);
2407 avio_wb64(pb, start_ct);
2409 avio_wb32(pb, duration);
2410 avio_wb32(pb, start_ct);
2412 avio_wb32(pb, 0x00010000);
2416 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2418 avio_wb32(pb, 20); // size
2419 ffio_wfourcc(pb, "tref");
2420 avio_wb32(pb, 12); // size (subatom)
2421 avio_wl32(pb, track->tref_tag);
2422 avio_wb32(pb, track->tref_id);
2426 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2427 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2429 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2430 ffio_wfourcc(pb, "uuid");
2431 ffio_wfourcc(pb, "USMT");
2432 avio_wb32(pb, 0x21d24fce);
2433 avio_wb32(pb, 0xbb88695c);
2434 avio_wb32(pb, 0xfac9c740);
2435 avio_wb32(pb, 0x1c); // another size here!
2436 ffio_wfourcc(pb, "MTDT");
2437 avio_wb32(pb, 0x00010012);
2438 avio_wb32(pb, 0x0a);
2439 avio_wb32(pb, 0x55c40000);
2445 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2447 AVFormatContext *ctx = track->rtp_ctx;
2448 char buf[1000] = "";
2451 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2452 NULL, NULL, 0, 0, ctx);
2453 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2456 avio_wb32(pb, len + 24);
2457 ffio_wfourcc(pb, "udta");
2458 avio_wb32(pb, len + 16);
2459 ffio_wfourcc(pb, "hnti");
2460 avio_wb32(pb, len + 8);
2461 ffio_wfourcc(pb, "sdp ");
2462 avio_write(pb, buf, len);
2466 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2467 const char *tag, const char *str)
2469 int64_t pos = avio_tell(pb);
2470 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2471 if (!t || !utf8len(t->value))
2474 avio_wb32(pb, 0); /* size */
2475 ffio_wfourcc(pb, tag); /* type */
2476 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2477 return update_size(pb, pos);
2480 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2483 AVIOContext *pb_buf;
2487 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2490 ret = avio_open_dyn_buf(&pb_buf);
2494 if (mov->mode & MODE_MP4)
2495 mov_write_track_metadata(pb_buf, st, "name", "title");
2497 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2498 avio_wb32(pb, size + 8);
2499 ffio_wfourcc(pb, "udta");
2500 avio_write(pb, buf, size);
2507 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2508 MOVTrack *track, AVStream *st)
2510 int64_t pos = avio_tell(pb);
2511 int entry_backup = track->entry;
2512 int chunk_backup = track->chunkCount;
2515 /* If we want to have an empty moov, but some samples already have been
2516 * buffered (delay_moov), pretend that no samples have been written yet. */
2517 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2518 track->chunkCount = track->entry = 0;
2520 avio_wb32(pb, 0); /* size */
2521 ffio_wfourcc(pb, "trak");
2522 mov_write_tkhd_tag(pb, mov, track, st);
2524 av_assert2(mov->use_editlist >= 0);
2526 if (track->start_dts != AV_NOPTS_VALUE) {
2527 if (mov->use_editlist)
2528 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2529 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2530 av_log(mov->fc, AV_LOG_WARNING,
2531 "Not writing any edit list even though one would have been required\n");
2534 if (track->tref_tag)
2535 mov_write_tref_tag(pb, track);
2537 if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2539 if (track->mode == MODE_PSP)
2540 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2541 if (track->tag == MKTAG('r','t','p',' '))
2542 mov_write_udta_sdp(pb, track);
2543 if (track->mode == MODE_MOV) {
2544 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2545 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2546 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2547 mov_write_tapt_tag(pb, track);
2550 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2551 mov_write_tapt_tag(pb, track);
2554 mov_write_track_udta_tag(pb, mov, st);
2555 track->entry = entry_backup;
2556 track->chunkCount = chunk_backup;
2557 return update_size(pb, pos);
2560 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2562 int i, has_audio = 0, has_video = 0;
2563 int64_t pos = avio_tell(pb);
2564 int audio_profile = mov->iods_audio_profile;
2565 int video_profile = mov->iods_video_profile;
2566 for (i = 0; i < mov->nb_streams; i++) {
2567 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2568 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2569 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2572 if (audio_profile < 0)
2573 audio_profile = 0xFF - has_audio;
2574 if (video_profile < 0)
2575 video_profile = 0xFF - has_video;
2576 avio_wb32(pb, 0x0); /* size */
2577 ffio_wfourcc(pb, "iods");
2578 avio_wb32(pb, 0); /* version & flags */
2579 put_descr(pb, 0x10, 7);
2580 avio_wb16(pb, 0x004f);
2583 avio_w8(pb, audio_profile);
2584 avio_w8(pb, video_profile);
2586 return update_size(pb, pos);
2589 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2591 avio_wb32(pb, 0x20); /* size */
2592 ffio_wfourcc(pb, "trex");
2593 avio_wb32(pb, 0); /* version & flags */
2594 avio_wb32(pb, track->track_id); /* track ID */
2595 avio_wb32(pb, 1); /* default sample description index */
2596 avio_wb32(pb, 0); /* default sample duration */
2597 avio_wb32(pb, 0); /* default sample size */
2598 avio_wb32(pb, 0); /* default sample flags */
2602 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2604 int64_t pos = avio_tell(pb);
2606 avio_wb32(pb, 0x0); /* size */
2607 ffio_wfourcc(pb, "mvex");
2608 for (i = 0; i < mov->nb_streams; i++)
2609 mov_write_trex_tag(pb, &mov->tracks[i]);
2610 return update_size(pb, pos);
2613 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2615 int max_track_id = 1, i;
2616 int64_t max_track_len = 0;
2619 for (i = 0; i < mov->nb_streams; i++) {
2620 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2621 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2623 mov->tracks[i].timescale,
2625 if (max_track_len < max_track_len_temp)
2626 max_track_len = max_track_len_temp;
2627 if (max_track_id < mov->tracks[i].track_id)
2628 max_track_id = mov->tracks[i].track_id;
2631 /* If using delay_moov, make sure the output is the same as if no
2632 * samples had been written yet. */
2633 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2638 version = max_track_len < UINT32_MAX ? 0 : 1;
2639 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2641 ffio_wfourcc(pb, "mvhd");
2642 avio_w8(pb, version);
2643 avio_wb24(pb, 0); /* flags */
2645 avio_wb64(pb, mov->time);
2646 avio_wb64(pb, mov->time);
2648 avio_wb32(pb, mov->time); /* creation time */
2649 avio_wb32(pb, mov->time); /* modification time */
2651 avio_wb32(pb, MOV_TIMESCALE);
2652 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2654 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2655 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2656 avio_wb16(pb, 0); /* reserved */
2657 avio_wb32(pb, 0); /* reserved */
2658 avio_wb32(pb, 0); /* reserved */
2660 /* Matrix structure */
2661 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2663 avio_wb32(pb, 0); /* reserved (preview time) */
2664 avio_wb32(pb, 0); /* reserved (preview duration) */
2665 avio_wb32(pb, 0); /* reserved (poster time) */
2666 avio_wb32(pb, 0); /* reserved (selection time) */
2667 avio_wb32(pb, 0); /* reserved (selection duration) */
2668 avio_wb32(pb, 0); /* reserved (current time) */
2669 avio_wb32(pb, max_track_id + 1); /* Next track id */
2673 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2676 avio_wb32(pb, 33); /* size */
2677 ffio_wfourcc(pb, "hdlr");
2680 ffio_wfourcc(pb, "mdir");
2681 ffio_wfourcc(pb, "appl");
2688 /* helper function to write a data tag with the specified string as data */
2689 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2692 int size = 16 + strlen(data);
2693 avio_wb32(pb, size); /* size */
2694 ffio_wfourcc(pb, "data");
2697 avio_write(pb, data, strlen(data));
2701 lang = ff_mov_iso639_to_lang("und", 1);
2702 avio_wb16(pb, strlen(data)); /* string length */
2703 avio_wb16(pb, lang);
2704 avio_write(pb, data, strlen(data));
2705 return strlen(data) + 4;
2709 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2710 const char *value, int lang, int long_style)
2713 if (value && value[0]) {
2714 int64_t pos = avio_tell(pb);
2715 avio_wb32(pb, 0); /* size */
2716 ffio_wfourcc(pb, name);
2717 mov_write_string_data_tag(pb, value, lang, long_style);
2718 size = update_size(pb, pos);
2723 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2724 const char *name, const char *tag,
2727 int l, lang = 0, len, len2;
2728 AVDictionaryEntry *t, *t2 = NULL;
2731 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2734 len = strlen(t->key);
2735 snprintf(tag2, sizeof(tag2), "%s-", tag);
2736 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2737 len2 = strlen(t2->key);
2738 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2739 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2744 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2747 /* iTunes bpm number */
2748 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2750 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2751 int size = 0, tmpo = t ? atoi(t->value) : 0;
2754 avio_wb32(pb, size);
2755 ffio_wfourcc(pb, "tmpo");
2756 avio_wb32(pb, size-8); /* size */
2757 ffio_wfourcc(pb, "data");
2758 avio_wb32(pb, 0x15); //type specifier
2760 avio_wb16(pb, tmpo); // data
2765 /* iTunes track or disc number */
2766 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2767 AVFormatContext *s, int disc)
2769 AVDictionaryEntry *t = av_dict_get(s->metadata,
2770 disc ? "disc" : "track",
2772 int size = 0, track = t ? atoi(t->value) : 0;
2775 char *slash = strchr(t->value, '/');
2777 tracks = atoi(slash + 1);
2778 avio_wb32(pb, 32); /* size */
2779 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2780 avio_wb32(pb, 24); /* size */
2781 ffio_wfourcc(pb, "data");
2782 avio_wb32(pb, 0); // 8 bytes empty
2784 avio_wb16(pb, 0); // empty
2785 avio_wb16(pb, track); // track / disc number
2786 avio_wb16(pb, tracks); // total track / disc number
2787 avio_wb16(pb, 0); // empty
2793 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2794 const char *name, const char *tag,
2797 AVDictionaryEntry *t = NULL;
2799 int size = 24 + len;
2801 if (len != 1 && len != 4)
2804 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2806 num = atoi(t->value);
2808 avio_wb32(pb, size);
2809 ffio_wfourcc(pb, name);
2810 avio_wb32(pb, size - 8);
2811 ffio_wfourcc(pb, "data");
2812 avio_wb32(pb, 0x15);
2814 if (len==4) avio_wb32(pb, num);
2815 else avio_w8 (pb, num);
2820 /* iTunes meta data list */
2821 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2824 int64_t pos = avio_tell(pb);
2825 avio_wb32(pb, 0); /* size */
2826 ffio_wfourcc(pb, "ilst");
2827 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2828 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2829 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2830 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2831 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2832 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2834 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2835 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2836 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2837 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2838 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2839 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2840 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2841 mov_write_string_metadata(s, pb, "desc", "description",1);
2842 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2843 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2844 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2845 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2846 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2847 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2848 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2849 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2850 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2851 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2852 mov_write_trkn_tag(pb, mov, s, 0); // track number
2853 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2854 mov_write_tmpo_tag(pb, s);
2855 return update_size(pb, pos);
2858 /* iTunes meta data tag */
2859 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2863 int64_t pos = avio_tell(pb);
2864 avio_wb32(pb, 0); /* size */
2865 ffio_wfourcc(pb, "meta");
2867 mov_write_itunes_hdlr_tag(pb, mov, s);
2868 mov_write_ilst_tag(pb, mov, s);
2869 size = update_size(pb, pos);
2873 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2874 const char *name, const char *key)
2877 AVDictionaryEntry *t;
2879 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2882 len = strlen(t->value);
2885 avio_wb32(pb, size);
2886 ffio_wfourcc(pb, name);
2887 avio_write(pb, t->value, len);
2893 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2897 GET_UTF8(val, *b++, return -1;)
2900 avio_wb16(pb, 0x00);
2904 static uint16_t language_code(const char *str)
2906 return (((str[0] - 0x60) & 0x1F) << 10) +
2907 (((str[1] - 0x60) & 0x1F) << 5) +
2908 (( str[2] - 0x60) & 0x1F);
2911 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2912 const char *tag, const char *str)
2914 int64_t pos = avio_tell(pb);
2915 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2916 if (!t || !utf8len(t->value))
2918 avio_wb32(pb, 0); /* size */
2919 ffio_wfourcc(pb, tag); /* type */
2920 avio_wb32(pb, 0); /* version + flags */
2921 if (!strcmp(tag, "yrrc"))
2922 avio_wb16(pb, atoi(t->value));
2924 avio_wb16(pb, language_code("eng")); /* language */
2925 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2926 if (!strcmp(tag, "albm") &&
2927 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2928 avio_w8(pb, atoi(t->value));
2930 return update_size(pb, pos);
2933 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2935 int64_t pos = avio_tell(pb);
2936 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2938 avio_wb32(pb, 0); // size
2939 ffio_wfourcc(pb, "chpl");
2940 avio_wb32(pb, 0x01000000); // version + flags
2941 avio_wb32(pb, 0); // unknown
2942 avio_w8(pb, nb_chapters);
2944 for (i = 0; i < nb_chapters; i++) {
2945 AVChapter *c = s->chapters[i];
2946 AVDictionaryEntry *t;
2947 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2949 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2950 int len = FFMIN(strlen(t->value), 255);
2952 avio_write(pb, t->value, len);
2956 return update_size(pb, pos);
2959 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2962 AVIOContext *pb_buf;
2966 ret = avio_open_dyn_buf(&pb_buf);
2970 if (mov->mode & MODE_3GP) {
2971 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2972 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2973 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2974 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2975 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2976 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2977 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2978 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2979 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2980 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2981 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2982 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2983 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2984 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2985 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2986 // currently ignored by mov.c
2987 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2988 // add support for libquicktime, this atom is also actually read by mov.c
2989 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2990 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2991 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2992 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2994 /* iTunes meta data */
2995 mov_write_meta_tag(pb_buf, mov, s);
2998 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2999 mov_write_chpl_tag(pb_buf, s);
3001 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3002 avio_wb32(pb, size + 8);
3003 ffio_wfourcc(pb, "udta");
3004 avio_write(pb, buf, size);
3011 static void mov_write_psp_udta_tag(AVIOContext *pb,
3012 const char *str, const char *lang, int type)
3014 int len = utf8len(str) + 1;
3017 avio_wb16(pb, len * 2 + 10); /* size */
3018 avio_wb32(pb, type); /* type */
3019 avio_wb16(pb, language_code(lang)); /* language */
3020 avio_wb16(pb, 0x01); /* ? */
3021 ascii_to_wc(pb, str);
3024 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3026 MOVMuxContext *mov = s->priv_data;
3027 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3031 pos = avio_tell(pb);
3032 avio_wb32(pb, 0); /* size placeholder*/
3033 ffio_wfourcc(pb, "uuid");
3034 ffio_wfourcc(pb, "USMT");
3035 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3036 avio_wb32(pb, 0xbb88695c);
3037 avio_wb32(pb, 0xfac9c740);
3039 pos2 = avio_tell(pb);
3040 avio_wb32(pb, 0); /* size placeholder*/
3041 ffio_wfourcc(pb, "MTDT");
3045 avio_wb16(pb, 0x0C); /* size */
3046 avio_wb32(pb, 0x0B); /* type */
3047 avio_wb16(pb, language_code("und")); /* language */
3048 avio_wb16(pb, 0x0); /* ? */
3049 avio_wb16(pb, 0x021C); /* data */
3052 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3053 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3054 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3056 update_size(pb, pos2);
3057 return update_size(pb, pos);
3063 static void build_chunks(MOVTrack *trk)
3066 MOVIentry *chunk = &trk->cluster[0];
3067 uint64_t chunkSize = chunk->size;
3068 chunk->chunkNum = 1;
3069 if (trk->chunkCount)
3071 trk->chunkCount = 1;
3072 for (i = 1; i<trk->entry; i++){
3073 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3074 chunkSize + trk->cluster[i].size < (1<<20)){
3075 chunkSize += trk->cluster[i].size;
3076 chunk->samples_in_chunk += trk->cluster[i].entries;
3078 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3079 chunk=&trk->cluster[i];
3080 chunkSize = chunk->size;
3086 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3090 int64_t pos = avio_tell(pb);
3091 avio_wb32(pb, 0); /* size placeholder*/
3092 ffio_wfourcc(pb, "moov");
3094 for (i = 0; i < mov->nb_streams; i++) {
3095 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3098 mov->tracks[i].time = mov->time;
3099 mov->tracks[i].track_id = i + 1;
3101 if (mov->tracks[i].entry)
3102 build_chunks(&mov->tracks[i]);
3105 if (mov->chapter_track)
3106 for (i = 0; i < s->nb_streams; i++) {
3107 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3108 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3110 for (i = 0; i < mov->nb_streams; i++) {
3111 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3112 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3113 mov->tracks[i].tref_id =
3114 mov->tracks[mov->tracks[i].src_track].track_id;
3117 for (i = 0; i < mov->nb_streams; i++) {
3118 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3119 int src_trk = mov->tracks[i].src_track;
3120 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3121 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3122 //src_trk may have a different timescale than the tmcd track
3123 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3124 mov->tracks[i].timescale,
3125 mov->tracks[src_trk].timescale);
3129 mov_write_mvhd_tag(pb, mov);
3130 if (mov->mode != MODE_MOV && !mov->iods_skip)
3131 mov_write_iods_tag(pb, mov);
3132 for (i = 0; i < mov->nb_streams; i++) {
3133 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3134 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3139 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3140 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3142 if (mov->mode == MODE_PSP)
3143 mov_write_uuidusmt_tag(pb, s);
3145 mov_write_udta_tag(pb, mov, s);
3147 return update_size(pb, pos);
3150 static void param_write_int(AVIOContext *pb, const char *name, int value)
3152 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3155 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3157 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3160 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3163 len = FFMIN(sizeof(buf) / 2 - 1, len);
3164 ff_data_to_hex(buf, value, len, 0);
3165 buf[2 * len] = '\0';
3166 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3169 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3171 int64_t pos = avio_tell(pb);
3173 static const uint8_t uuid[] = {
3174 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3175 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3179 ffio_wfourcc(pb, "uuid");
3180 avio_write(pb, uuid, sizeof(uuid));
3183 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3184 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3185 avio_printf(pb, "<head>\n");
3187 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3189 avio_printf(pb, "</head>\n");
3190 avio_printf(pb, "<body>\n");
3191 avio_printf(pb, "<switch>\n");
3192 for (i = 0; i < mov->nb_streams; i++) {
3193 MOVTrack *track = &mov->tracks[i];
3195 /* track->track_id is initialized in write_moov, and thus isn't known
3197 int track_id = i + 1;
3199 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3201 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3206 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3207 track->enc->bit_rate);
3208 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3209 param_write_int(pb, "trackID", track_id);
3210 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3211 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3213 int size = track->enc->extradata_size;
3214 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3216 param_write_hex(pb, "CodecPrivateData",
3217 ptr ? ptr : track->enc->extradata,
3221 param_write_string(pb, "FourCC", "H264");
3222 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3223 param_write_string(pb, "FourCC", "WVC1");
3224 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3225 track->enc->extradata_size);
3227 param_write_int(pb, "MaxWidth", track->enc->width);
3228 param_write_int(pb, "MaxHeight", track->enc->height);
3229 param_write_int(pb, "DisplayWidth", track->enc->width);
3230 param_write_int(pb, "DisplayHeight", track->enc->height);
3232 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3233 param_write_string(pb, "FourCC", "AACL");
3234 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3235 param_write_string(pb, "FourCC", "WMAP");
3237 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3238 track->enc->extradata_size);
3239 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3240 track->enc->codec_id));
3241 param_write_int(pb, "Channels", track->enc->channels);
3242 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3243 param_write_int(pb, "BitsPerSample", 16);
3244 param_write_int(pb, "PacketSize", track->enc->block_align ?
3245 track->enc->block_align : 4);
3247 avio_printf(pb, "</%s>\n", type);
3249 avio_printf(pb, "</switch>\n");
3250 avio_printf(pb, "</body>\n");
3251 avio_printf(pb, "</smil>\n");
3253 return update_size(pb, pos);
3256 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3259 ffio_wfourcc(pb, "mfhd");
3261 avio_wb32(pb, mov->fragments);
3265 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3266 MOVTrack *track, int64_t moof_offset)
3268 int64_t pos = avio_tell(pb);
3269 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3270 MOV_TFHD_BASE_DATA_OFFSET;
3271 if (!track->entry) {
3272 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3274 flags |= MOV_TFHD_DEFAULT_FLAGS;
3276 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3277 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3278 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3279 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3280 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3283 /* Don't set a default sample size, the silverlight player refuses
3284 * to play files with that set. Don't set a default sample duration,
3285 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3286 * file format says it MUST NOT be set. */
3287 if (track->mode == MODE_ISM)
3288 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3289 MOV_TFHD_BASE_DATA_OFFSET);
3291 avio_wb32(pb, 0); /* size placeholder */
3292 ffio_wfourcc(pb, "tfhd");
3293 avio_w8(pb, 0); /* version */
3294 avio_wb24(pb, flags);
3296 avio_wb32(pb, track->track_id); /* track-id */
3297 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3298 avio_wb64(pb, moof_offset);
3299 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3300 track->default_duration = get_cluster_duration(track, 0);
3301 avio_wb32(pb, track->default_duration);
3303 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3304 track->default_size = track->entry ? track->cluster[0].size : 1;
3305 avio_wb32(pb, track->default_size);
3307 track->default_size = -1;
3309 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3310 track->default_sample_flags =
3311 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3312 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3313 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3314 avio_wb32(pb, track->default_sample_flags);
3317 return update_size(pb, pos);
3320 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3322 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3323 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3326 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3327 MOVTrack *track, int moof_size)
3329 int64_t pos = avio_tell(pb);
3330 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3333 for (i = 0; i < track->entry; i++) {
3334 if (get_cluster_duration(track, i) != track->default_duration)
3335 flags |= MOV_TRUN_SAMPLE_DURATION;
3336 if (track->cluster[i].size != track->default_size)
3337 flags |= MOV_TRUN_SAMPLE_SIZE;
3338 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3339 flags |= MOV_TRUN_SAMPLE_FLAGS;
3341 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3342 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3343 if (track->flags & MOV_TRACK_CTTS)
3344 flags |= MOV_TRUN_SAMPLE_CTS;
3346 avio_wb32(pb, 0); /* size placeholder */
3347 ffio_wfourcc(pb, "trun");
3348 avio_w8(pb, 0); /* version */
3349 avio_wb24(pb, flags);
3351 avio_wb32(pb, track->entry); /* sample count */
3352 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3353 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3355 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3357 avio_wb32(pb, moof_size + 8 + track->data_offset +
3358 track->cluster[0].pos); /* data offset */
3359 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3360 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3362 for (i = 0; i < track->entry; i++) {
3363 if (flags & MOV_TRUN_SAMPLE_DURATION)
3364 avio_wb32(pb, get_cluster_duration(track, i));
3365 if (flags & MOV_TRUN_SAMPLE_SIZE)
3366 avio_wb32(pb, track->cluster[i].size);
3367 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3368 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3369 if (flags & MOV_TRUN_SAMPLE_CTS)
3370 avio_wb32(pb, track->cluster[i].cts);
3373 mov->first_trun = 0;
3374 return update_size(pb, pos);
3377 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3379 int64_t pos = avio_tell(pb);
3380 static const uint8_t uuid[] = {
3381 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3382 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3385 avio_wb32(pb, 0); /* size placeholder */
3386 ffio_wfourcc(pb, "uuid");
3387 avio_write(pb, uuid, sizeof(uuid));
3390 avio_wb64(pb, track->frag_start);
3391 avio_wb64(pb, track->start_dts + track->track_duration -
3392 track->cluster[0].dts);
3394 return update_size(pb, pos);
3397 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3398 MOVTrack *track, int entry)
3400 int n = track->nb_frag_info - 1 - entry, i;
3401 int size = 8 + 16 + 4 + 1 + 16*n;
3402 static const uint8_t uuid[] = {
3403 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3404 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3410 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3411 avio_wb32(pb, size);
3412 ffio_wfourcc(pb, "uuid");
3413 avio_write(pb, uuid, sizeof(uuid));
3417 for (i = 0; i < n; i++) {
3418 int index = entry + 1 + i;
3419 avio_wb64(pb, track->frag_info[index].time);
3420 avio_wb64(pb, track->frag_info[index].duration);
3422 if (n < mov->ism_lookahead) {
3423 int free_size = 16 * (mov->ism_lookahead - n);
3424 avio_wb32(pb, free_size);
3425 ffio_wfourcc(pb, "free");
3426 ffio_fill(pb, 0, free_size - 8);
3432 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3435 int64_t pos = avio_tell(pb);
3437 for (i = 0; i < mov->ism_lookahead; i++) {
3438 /* Update the tfrf tag for the last ism_lookahead fragments,
3439 * nb_frag_info - 1 is the next fragment to be written. */
3440 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3442 avio_seek(pb, pos, SEEK_SET);
3446 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3450 for (i = 0; i < mov->nb_streams; i++) {
3451 MOVTrack *track = &mov->tracks[i];
3452 MOVFragmentInfo *info;
3453 if ((tracks >= 0 && i != tracks) || !track->entry)
3455 track->nb_frag_info++;
3456 if (track->nb_frag_info >= track->frag_info_capacity) {
3457 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3458 if (av_reallocp_array(&track->frag_info,
3460 sizeof(*track->frag_info)))
3461 return AVERROR(ENOMEM);
3462 track->frag_info_capacity = new_capacity;
3464 info = &track->frag_info[track->nb_frag_info - 1];
3465 info->offset = avio_tell(pb);
3467 // Try to recreate the original pts for the first packet
3468 // from the fields we have stored
3469 info->time = track->start_dts + track->frag_start +
3470 track->cluster[0].cts;
3471 // If the pts is less than zero, we will have trimmed
3472 // away parts of the media track using an edit list,
3473 // and the corresponding start presentation time is zero.
3476 info->duration = track->start_dts + track->track_duration -
3477 track->cluster[0].dts;
3478 info->tfrf_offset = 0;
3479 mov_write_tfrf_tags(pb, mov, track);
3484 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3486 int64_t pos = avio_tell(pb);
3488 avio_wb32(pb, 0); /* size */
3489 ffio_wfourcc(pb, "tfdt");
3490 avio_w8(pb, 1); /* version */
3492 avio_wb64(pb, track->frag_start);
3493 return update_size(pb, pos);
3496 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3497 MOVTrack *track, int64_t moof_offset,
3500 int64_t pos = avio_tell(pb);
3501 avio_wb32(pb, 0); /* size placeholder */
3502 ffio_wfourcc(pb, "traf");
3504 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3505 if (mov->mode != MODE_ISM)
3506 mov_write_tfdt_tag(pb, track);
3507 mov_write_trun_tag(pb, mov, track, moof_size);
3508 if (mov->mode == MODE_ISM) {
3509 mov_write_tfxd_tag(pb, track);
3511 if (mov->ism_lookahead) {
3512 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3514 if (track->nb_frag_info > 0) {
3515 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3516 if (!info->tfrf_offset)
3517 info->tfrf_offset = avio_tell(pb);
3519 avio_wb32(pb, 8 + size);
3520 ffio_wfourcc(pb, "free");
3521 for (i = 0; i < size; i++)
3526 return update_size(pb, pos);
3529 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3530 int tracks, int moof_size)
3532 int64_t pos = avio_tell(pb);
3535 avio_wb32(pb, 0); /* size placeholder */
3536 ffio_wfourcc(pb, "moof");
3537 mov->first_trun = 1;
3539 mov_write_mfhd_tag(pb, mov);
3540 for (i = 0; i < mov->nb_streams; i++) {
3541 MOVTrack *track = &mov->tracks[i];
3542 if (tracks >= 0 && i != tracks)
3546 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3549 return update_size(pb, pos);
3552 static int mov_write_sidx_tag(AVIOContext *pb,
3553 MOVTrack *track, int ref_size, int total_sidx_size)
3555 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3556 int64_t presentation_time, duration, offset;
3557 int starts_with_SAP, i, entries;
3561 presentation_time = track->start_dts + track->frag_start +
3562 track->cluster[0].cts;
3563 duration = track->start_dts + track->track_duration -
3564 track->cluster[0].dts;
3565 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3567 entries = track->nb_frag_info;
3568 presentation_time = track->frag_info[0].time;
3571 // pts<0 should be cut away using edts
3572 if (presentation_time < 0)
3573 presentation_time = 0;
3575 avio_wb32(pb, 0); /* size */
3576 ffio_wfourcc(pb, "sidx");
3577 avio_w8(pb, 1); /* version */
3579 avio_wb32(pb, track->track_id); /* reference_ID */
3580 avio_wb32(pb, track->timescale); /* timescale */
3581 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3582 offset_pos = avio_tell(pb);
3583 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3584 avio_wb16(pb, 0); /* reserved */
3586 avio_wb16(pb, entries); /* reference_count */
3587 for (i = 0; i < entries; i++) {
3588 if (!track->entry) {
3589 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3590 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3592 duration = track->frag_info[i].duration;
3593 ref_size = track->frag_info[i].size;
3594 starts_with_SAP = 1;
3596 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3597 avio_wb32(pb, duration); /* subsegment_duration */
3598 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3601 end_pos = avio_tell(pb);
3602 offset = pos + total_sidx_size - end_pos;
3603 avio_seek(pb, offset_pos, SEEK_SET);
3604 avio_wb64(pb, offset);
3605 avio_seek(pb, end_pos, SEEK_SET);
3606 return update_size(pb, pos);
3609 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3610 int tracks, int ref_size)
3613 AVIOContext *avio_buf;
3615 for (round = 0; round < 2; round++) {
3616 // First run one round to calculate the total size of all
3618 // This would be much simpler if we'd only write one sidx
3619 // atom, for the first track in the moof.
3621 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3626 for (i = 0; i < mov->nb_streams; i++) {
3627 MOVTrack *track = &mov->tracks[i];
3628 if (tracks >= 0 && i != tracks)
3630 // When writing a sidx for the full file, entry is 0, but
3631 // we want to include all tracks. ref_size is 0 in this case,
3632 // since we read it from frag_info instead.
3633 if (!track->entry && ref_size > 0)
3635 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3639 total_size = ffio_close_null_buf(avio_buf);
3644 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3647 AVIOContext *avio_buf;
3650 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3652 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3653 moof_size = ffio_close_null_buf(avio_buf);
3655 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3656 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3658 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3661 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3664 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3666 int64_t pos = avio_tell(pb);
3669 avio_wb32(pb, 0); /* size placeholder */
3670 ffio_wfourcc(pb, "tfra");
3671 avio_w8(pb, 1); /* version */
3674 avio_wb32(pb, track->track_id);
3675 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3676 avio_wb32(pb, track->nb_frag_info);
3677 for (i = 0; i < track->nb_frag_info; i++) {
3678 avio_wb64(pb, track->frag_info[i].time);
3679 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3680 avio_w8(pb, 1); /* traf number */
3681 avio_w8(pb, 1); /* trun number */
3682 avio_w8(pb, 1); /* sample number */
3685 return update_size(pb, pos);
3688 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3690 int64_t pos = avio_tell(pb);
3693 avio_wb32(pb, 0); /* size placeholder */
3694 ffio_wfourcc(pb, "mfra");
3695 /* An empty mfra atom is enough to indicate to the publishing point that
3696 * the stream has ended. */
3697 if (mov->flags & FF_MOV_FLAG_ISML)
3698 return update_size(pb, pos);
3700 for (i = 0; i < mov->nb_streams; i++) {
3701 MOVTrack *track = &mov->tracks[i];
3702 if (track->nb_frag_info)
3703 mov_write_tfra_tag(pb, track);
3707 ffio_wfourcc(pb, "mfro");
3708 avio_wb32(pb, 0); /* version + flags */
3709 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3711 return update_size(pb, pos);
3714 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3716 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3717 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3719 mov->mdat_pos = avio_tell(pb);
3720 avio_wb32(pb, 0); /* size placeholder*/
3721 ffio_wfourcc(pb, "mdat");
3725 /* TODO: This needs to be more general */
3726 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3728 MOVMuxContext *mov = s->priv_data;
3729 int64_t pos = avio_tell(pb);
3730 int has_h264 = 0, has_video = 0;
3734 for (i = 0; i < s->nb_streams; i++) {
3735 AVStream *st = s->streams[i];
3736 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3738 if (st->codec->codec_id == AV_CODEC_ID_H264)
3742 avio_wb32(pb, 0); /* size */
3743 ffio_wfourcc(pb, "ftyp");
3745 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3746 ffio_wfourcc(pb, mov->major_brand);
3747 else if (mov->mode == MODE_3GP) {
3748 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3749 minor = has_h264 ? 0x100 : 0x200;
3750 } else if (mov->mode & MODE_3G2) {
3751 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3752 minor = has_h264 ? 0x20000 : 0x10000;
3753 } else if (mov->mode == MODE_PSP)
3754 ffio_wfourcc(pb, "MSNV");
3755 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3756 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3757 else if (mov->mode == MODE_MP4)
3758 ffio_wfourcc(pb, "isom");
3759 else if (mov->mode == MODE_IPOD)
3760 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3761 else if (mov->mode == MODE_ISM)
3762 ffio_wfourcc(pb, "isml");
3763 else if (mov->mode == MODE_F4V)
3764 ffio_wfourcc(pb, "f4v ");
3766 ffio_wfourcc(pb, "qt ");
3768 avio_wb32(pb, minor);
3770 if (mov->mode == MODE_MOV)
3771 ffio_wfourcc(pb, "qt ");
3772 else if (mov->mode == MODE_ISM) {
3773 ffio_wfourcc(pb, "piff");
3774 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3775 ffio_wfourcc(pb, "isom");
3776 ffio_wfourcc(pb, "iso2");
3778 ffio_wfourcc(pb, "avc1");
3781 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3782 // brand. This is compatible with users that don't understand tfdt.
3783 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3784 ffio_wfourcc(pb, "iso6");
3786 if (mov->mode == MODE_3GP)
3787 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3788 else if (mov->mode & MODE_3G2)
3789 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3790 else if (mov->mode == MODE_PSP)
3791 ffio_wfourcc(pb, "MSNV");
3792 else if (mov->mode == MODE_MP4)
3793 ffio_wfourcc(pb, "mp41");
3795 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3796 ffio_wfourcc(pb, "dash");
3798 return update_size(pb, pos);
3801 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3803 AVStream *video_st = s->streams[0];
3804 AVCodecContext *video_codec = s->streams[0]->codec;
3805 AVCodecContext *audio_codec = s->streams[1]->codec;
3806 int audio_rate = audio_codec->sample_rate;
3807 // TODO: should be avg_frame_rate
3808 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3809 int audio_kbitrate = audio_codec->bit_rate / 1000;
3810 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3812 avio_wb32(pb, 0x94); /* size */
3813 ffio_wfourcc(pb, "uuid");
3814 ffio_wfourcc(pb, "PROF");
3816 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3817 avio_wb32(pb, 0xbb88695c);
3818 avio_wb32(pb, 0xfac9c740);
3820 avio_wb32(pb, 0x0); /* ? */
3821 avio_wb32(pb, 0x3); /* 3 sections ? */
3823 avio_wb32(pb, 0x14); /* size */
3824 ffio_wfourcc(pb, "FPRF");
3825 avio_wb32(pb, 0x0); /* ? */
3826 avio_wb32(pb, 0x0); /* ? */
3827 avio_wb32(pb, 0x0); /* ? */
3829 avio_wb32(pb, 0x2c); /* size */
3830 ffio_wfourcc(pb, "APRF"); /* audio */
3832 avio_wb32(pb, 0x2); /* TrackID */
3833 ffio_wfourcc(pb, "mp4a");
3834 avio_wb32(pb, 0x20f);
3836 avio_wb32(pb, audio_kbitrate);
3837 avio_wb32(pb, audio_kbitrate);
3838 avio_wb32(pb, audio_rate);
3839 avio_wb32(pb, audio_codec->channels);
3841 avio_wb32(pb, 0x34); /* size */
3842 ffio_wfourcc(pb, "VPRF"); /* video */
3844 avio_wb32(pb, 0x1); /* TrackID */
3845 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3846 ffio_wfourcc(pb, "avc1");
3847 avio_wb16(pb, 0x014D);
3848 avio_wb16(pb, 0x0015);
3850 ffio_wfourcc(pb, "mp4v");
3851 avio_wb16(pb, 0x0000);
3852 avio_wb16(pb, 0x0103);
3855 avio_wb32(pb, video_kbitrate);
3856 avio_wb32(pb, video_kbitrate);
3857 avio_wb32(pb, frame_rate);
3858 avio_wb32(pb, frame_rate);
3859 avio_wb16(pb, video_codec->width);
3860 avio_wb16(pb, video_codec->height);
3861 avio_wb32(pb, 0x010001); /* ? */
3864 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3866 MOVMuxContext *mov = s->priv_data;
3869 mov_write_ftyp_tag(pb,s);
3870 if (mov->mode == MODE_PSP) {
3871 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3872 for (i = 0; i < s->nb_streams; i++) {
3873 AVStream *st = s->streams[i];
3874 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3876 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3882 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3883 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3884 return AVERROR(EINVAL);
3886 mov_write_uuidprof_tag(pb, s);
3891 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3894 int i, closed_gop = 0;
3896 for (i = 0; i < pkt->size - 4; i++) {
3897 c = (c << 8) + pkt->data[i];
3898 if (c == 0x1b8) { // gop
3899 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3900 } else if (c == 0x100) { // pic
3901 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3902 if (!temp_ref || closed_gop) // I picture is not reordered
3903 *flags = MOV_SYNC_SAMPLE;
3905 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3912 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3914 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3915 int seq = 0, entry = 0;
3916 int key = pkt->flags & AV_PKT_FLAG_KEY;
3917 start = find_next_marker(pkt->data, end);
3918 for (next = start; next < end; start = next) {
3919 next = find_next_marker(start + 4, end);
3920 switch (AV_RB32(start)) {
3921 case VC1_CODE_SEQHDR:
3924 case VC1_CODE_ENTRYPOINT:
3927 case VC1_CODE_SLICE:
3928 trk->vc1_info.slices = 1;
3932 if (!trk->entry && !fragment) {
3933 /* First packet in first fragment */
3934 trk->vc1_info.first_packet_seq = seq;
3935 trk->vc1_info.first_packet_entry = entry;
3936 } else if ((seq && !trk->vc1_info.packet_seq) ||
3937 (entry && !trk->vc1_info.packet_entry)) {
3939 for (i = 0; i < trk->entry; i++)
3940 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3941 trk->has_keyframes = 0;
3943 trk->vc1_info.packet_seq = 1;
3945 trk->vc1_info.packet_entry = 1;
3947 /* First fragment */
3948 if ((!seq || trk->vc1_info.first_packet_seq) &&
3949 (!entry || trk->vc1_info.first_packet_entry)) {
3950 /* First packet had the same headers as this one, readd the
3951 * sync sample flag. */
3952 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3953 trk->has_keyframes = 1;
3957 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3959 else if (trk->vc1_info.packet_seq)
3961 else if (trk->vc1_info.packet_entry)
3964 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3965 trk->has_keyframes++;
3969 static int mov_flush_fragment(AVFormatContext *s)
3971 MOVMuxContext *mov = s->priv_data;
3972 int i, first_track = -1;
3973 int64_t mdat_size = 0;
3976 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3979 if (mov->fragments == 0) {
3980 int64_t pos = avio_tell(s->pb);
3982 int buf_size, moov_size;
3984 for (i = 0; i < mov->nb_streams; i++)
3985 if (!mov->tracks[i].entry)
3987 /* Don't write the initial moov unless all tracks have data */
3988 if (i < mov->nb_streams)
3991 moov_size = get_moov_size(s);
3992 for (i = 0; i < mov->nb_streams; i++)
3993 mov->tracks[i].data_offset = pos + moov_size + 8;
3995 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3996 mov_write_identification(s->pb, s);
3997 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4000 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4001 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4002 mov->reserved_moov_pos = avio_tell(s->pb);
4008 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4009 mov->mdat_buf = NULL;
4010 avio_wb32(s->pb, buf_size + 8);
4011 ffio_wfourcc(s->pb, "mdat");
4012 avio_write(s->pb, buf, buf_size);
4017 for (i = 0; i < mov->nb_streams; i++) {
4018 if (mov->tracks[i].entry)
4019 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4020 mov->tracks[i].track_duration -
4021 mov->tracks[i].cluster[0].dts;
4022 mov->tracks[i].entry = 0;
4028 for (i = 0; i < mov->nb_streams; i++) {
4029 MOVTrack *track = &mov->tracks[i];
4030 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
4031 track->data_offset = 0;
4033 track->data_offset = mdat_size;
4034 if (!track->mdat_buf)
4036 mdat_size += avio_tell(track->mdat_buf);
4037 if (first_track < 0)
4044 for (i = 0; i < mov->nb_streams; i++) {
4045 MOVTrack *track = &mov->tracks[i];
4046 int buf_size, write_moof = 1, moof_tracks = -1;
4048 int64_t duration = 0;
4051 duration = track->start_dts + track->track_duration -
4052 track->cluster[0].dts;
4053 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4054 if (!track->mdat_buf)
4056 mdat_size = avio_tell(track->mdat_buf);
4059 write_moof = i == first_track;
4065 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4068 avio_wb32(s->pb, mdat_size + 8);
4069 ffio_wfourcc(s->pb, "mdat");
4073 track->frag_start += duration;
4075 if (!track->mdat_buf)
4077 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4078 track->mdat_buf = NULL;
4080 avio_write(s->pb, buf, buf_size);
4090 static int mov_auto_flush_fragment(AVFormatContext *s)
4092 MOVMuxContext *mov = s->priv_data;
4093 int ret = mov_flush_fragment(s);
4096 // If using delay_moov, the first flush only wrote the moov,
4097 // not the actual moof+mdat pair, thus flush once again.
4098 if (mov->fragments == 1 && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4099 ret = mov_flush_fragment(s);
4103 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4105 MOVMuxContext *mov = s->priv_data;
4106 AVIOContext *pb = s->pb;
4107 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4108 AVCodecContext *enc = trk->enc;
4109 unsigned int samples_in_chunk = 0;
4110 int size = pkt->size, ret = 0;
4111 uint8_t *reformatted_data = NULL;
4114 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4115 if (duration < 0 || duration > INT_MAX) {
4116 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4120 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4121 pkt->pts = AV_NOPTS_VALUE;
4123 if (pkt->duration < 0) {
4124 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4125 return AVERROR(EINVAL);
4128 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4130 if (mov->fragments > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4131 if (!trk->mdat_buf) {
4132 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4137 if (!mov->mdat_buf) {
4138 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4145 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4146 /* We must find out how many AMR blocks there are in one packet */
4147 static uint16_t packed_size[16] =
4148 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4151 while (len < size && samples_in_chunk < 100) {
4152 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4155 if (samples_in_chunk > 1) {
4156 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4159 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4160 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4161 samples_in_chunk = enc->frame_size;
4162 } else if (trk->sample_size)
4163 samples_in_chunk = size / trk->sample_size;
4165 samples_in_chunk = 1;
4167 /* copy extradata if it exists */
4168 if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
4169 trk->vos_len = enc->extradata_size;
4170 trk->vos_data = av_malloc(trk->vos_len);
4171 if (!trk->vos_data) {
4172 ret = AVERROR(ENOMEM);
4175 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4178 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4179 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4180 if (!s->streams[pkt->stream_index]->nb_frames) {
4181 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4182 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4183 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4186 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4188 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4189 /* from x264 or from bytestream h264 */
4190 /* nal reformating needed */
4191 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4192 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4194 avio_write(pb, reformatted_data, size);
4196 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4198 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4199 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4200 /* extradata is Annex B, assume the bitstream is too and convert it */
4201 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4202 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4203 avio_write(pb, reformatted_data, size);
4205 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4207 #if CONFIG_AC3_PARSER
4208 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4209 size = handle_eac3(mov, pkt, trk);
4214 avio_write(pb, pkt->data, size);
4217 avio_write(pb, pkt->data, size);
4220 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4221 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4222 /* copy frame to create needed atoms */
4223 trk->vos_len = size;
4224 trk->vos_data = av_malloc(size);
4225 if (!trk->vos_data) {
4226 ret = AVERROR(ENOMEM);
4229 memcpy(trk->vos_data, pkt->data, size);
4232 if (trk->entry >= trk->cluster_capacity) {
4233 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4234 if (av_reallocp_array(&trk->cluster, new_capacity,
4235 sizeof(*trk->cluster))) {
4236 ret = AVERROR(ENOMEM);
4239 trk->cluster_capacity = new_capacity;
4242 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4243 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4244 trk->cluster[trk->entry].chunkNum = 0;
4245 trk->cluster[trk->entry].size = size;
4246 trk->cluster[trk->entry].entries = samples_in_chunk;
4247 trk->cluster[trk->entry].dts = pkt->dts;
4248 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4249 if (!trk->frag_discont) {
4250 /* First packet of a new fragment. We already wrote the duration
4251 * of the last packet of the previous fragment based on track_duration,
4252 * which might not exactly match our dts. Therefore adjust the dts
4253 * of this packet to be what the previous packets duration implies. */
4254 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4255 /* We also may have written the pts and the corresponding duration
4256 * in sidx tags; make sure the sidx pts and duration match up with
4257 * the next fragment. This means the cts of the first sample must
4258 * be the same in all fragments. */
4259 pkt->pts = pkt->dts + trk->start_cts;
4261 /* New fragment, but discontinuous from previous fragments.
4262 * Pretend the duration sum of the earlier fragments is
4263 * pkt->dts - trk->start_dts. */
4264 trk->frag_start = pkt->dts - trk->start_dts;
4265 trk->frag_discont = 0;
4269 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4270 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4271 /* Not using edit lists and shifting the first track to start from zero.
4272 * If the other streams start from a later timestamp, we won't be able
4273 * to signal the difference in starting time without an edit list.
4274 * Thus move the timestamp for this first sample to 0, increasing
4275 * its duration instead. */
4276 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4278 if (trk->start_dts == AV_NOPTS_VALUE) {
4279 trk->start_dts = pkt->dts;
4280 if (trk->frag_discont) {
4281 /* Pretend the whole stream started at dts=0, with earlier fragments
4282 * already written, with a duration summing up to pkt->dts. */
4283 trk->frag_start = pkt->dts;
4285 trk->frag_discont = 0;
4286 } else if (pkt->dts && mov->fragments >= 1)
4287 av_log(s, AV_LOG_WARNING,
4288 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4289 "already has been written. Set the delay_moov flag to handle "
4291 pkt->stream_index, pkt->dts);
4293 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4294 trk->last_sample_is_subtitle_end = 0;
4296 if (pkt->pts == AV_NOPTS_VALUE) {
4297 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4298 pkt->pts = pkt->dts;
4300 if (pkt->dts != pkt->pts)
4301 trk->flags |= MOV_TRACK_CTTS;
4302 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4303 trk->cluster[trk->entry].flags = 0;
4304 if (trk->start_cts == AV_NOPTS_VALUE)
4305 trk->start_cts = pkt->pts - pkt->dts;
4307 if (enc->codec_id == AV_CODEC_ID_VC1) {
4308 mov_parse_vc1_frame(pkt, trk, mov->fragments);
4309 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4310 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4311 trk->entry > 0) { // force sync sample for the first key frame
4312 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4313 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4314 trk->flags |= MOV_TRACK_STPS;
4316 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4318 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4319 trk->has_keyframes++;
4322 trk->sample_count += samples_in_chunk;
4323 mov->mdat_size += size;
4325 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4326 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4327 reformatted_data, size);
4332 av_free(reformatted_data);
4336 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4338 MOVMuxContext *mov = s->priv_data;
4339 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4340 AVCodecContext *enc = trk->enc;
4341 int64_t frag_duration = 0;
4342 int size = pkt->size;
4345 return 0; /* Discard 0 sized packets */
4347 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4349 for (i = 0; i < s->nb_streams; i++)
4350 mov->tracks[i].frag_discont = 1;
4351 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4354 if (trk->entry && pkt->stream_index < s->nb_streams)
4355 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4356 s->streams[pkt->stream_index]->time_base,
4358 if ((mov->max_fragment_duration &&
4359 frag_duration >= mov->max_fragment_duration) ||
4360 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4361 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4362 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4363 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4364 if (frag_duration >= mov->min_fragment_duration)
4365 mov_auto_flush_fragment(s);
4368 return ff_mov_write_packet(s, pkt);
4371 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4375 uint8_t data[2] = {0};
4378 av_init_packet(&end);
4379 end.size = sizeof(data);
4384 end.stream_index = stream_index;
4386 ret = mov_write_single_packet(s, &end);
4387 av_free_packet(&end);
4392 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4395 mov_flush_fragment(s);
4399 MOVMuxContext *mov = s->priv_data;
4401 if (!pkt->size) return 0; /* Discard 0 sized packets */
4404 * Subtitles require special handling.
4406 * 1) For full complaince, every track must have a sample at
4407 * dts == 0, which is rarely true for subtitles. So, as soon
4408 * as we see any packet with dts > 0, write an empty subtitle
4409 * at dts == 0 for any subtitle track with no samples in it.
4411 * 2) For each subtitle track, check if the current packet's
4412 * dts is past the duration of the last subtitle sample. If
4413 * so, we now need to write an end sample for that subtitle.
4415 * This must be done conditionally to allow for subtitles that
4416 * immediately replace each other, in which case an end sample
4417 * is not needed, and is, in fact, actively harmful.
4419 * 3) See mov_write_trailer for how the final end sample is
4422 for (i = 0; i < mov->nb_streams; i++) {
4423 MOVTrack *trk = &mov->tracks[i];
4426 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4427 trk->track_duration < pkt->dts &&
4428 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4429 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4430 if (ret < 0) return ret;
4431 trk->last_sample_is_subtitle_end = 1;
4435 return mov_write_single_packet(s, pkt);
4439 // QuickTime chapters involve an additional text track with the chapter names
4440 // as samples, and a tref pointing from the other tracks to the chapter one.
4441 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4445 MOVMuxContext *mov = s->priv_data;
4446 MOVTrack *track = &mov->tracks[tracknum];
4447 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4450 track->mode = mov->mode;
4451 track->tag = MKTAG('t','e','x','t');
4452 track->timescale = MOV_TIMESCALE;
4453 track->enc = avcodec_alloc_context3(NULL);
4455 return AVERROR(ENOMEM);
4456 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4458 // These properties are required to make QT recognize the chapter track
4459 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4460 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4461 return AVERROR(ENOMEM);
4462 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4464 if (avio_open_dyn_buf(&pb) >= 0) {
4468 /* Stub header (usually for Quicktime chapter track) */
4470 avio_wb32(pb, 0x01); // displayFlags
4471 avio_w8(pb, 0x00); // horizontal justification
4472 avio_w8(pb, 0x00); // vertical justification
4473 avio_w8(pb, 0x00); // bgColourRed
4474 avio_w8(pb, 0x00); // bgColourGreen
4475 avio_w8(pb, 0x00); // bgColourBlue
4476 avio_w8(pb, 0x00); // bgColourAlpha
4478 avio_wb16(pb, 0x00); // defTextBoxTop
4479 avio_wb16(pb, 0x00); // defTextBoxLeft
4480 avio_wb16(pb, 0x00); // defTextBoxBottom
4481 avio_wb16(pb, 0x00); // defTextBoxRight
4483 avio_wb16(pb, 0x00); // startChar
4484 avio_wb16(pb, 0x00); // endChar
4485 avio_wb16(pb, 0x01); // fontID
4486 avio_w8(pb, 0x00); // fontStyleFlags
4487 avio_w8(pb, 0x00); // fontSize
4488 avio_w8(pb, 0x00); // fgColourRed
4489 avio_w8(pb, 0x00); // fgColourGreen
4490 avio_w8(pb, 0x00); // fgColourBlue
4491 avio_w8(pb, 0x00); // fgColourAlpha
4493 avio_wb32(pb, 0x0D); // box size
4494 ffio_wfourcc(pb, "ftab"); // box atom name
4495 avio_wb16(pb, 0x01); // entry count
4497 avio_wb16(pb, 0x01); // font ID
4498 avio_w8(pb, 0x00); // font name length
4500 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4501 track->enc->extradata = buf;
4502 track->enc->extradata_size = size;
4509 for (i = 0; i < s->nb_chapters; i++) {
4510 AVChapter *c = s->chapters[i];
4511 AVDictionaryEntry *t;
4513 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4514 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4515 pkt.duration = end - pkt.dts;
4517 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4518 const char encd[12] = {
4519 0x00, 0x00, 0x00, 0x0C,
4521 0x00, 0x00, 0x01, 0x00 };
4522 len = strlen(t->value);
4523 pkt.size = len + 2 + 12;
4524 pkt.data = av_malloc(pkt.size);
4526 return AVERROR(ENOMEM);
4527 AV_WB16(pkt.data, len);
4528 memcpy(pkt.data + 2, t->value, len);
4529 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4530 ff_mov_write_packet(s, &pkt);
4531 av_freep(&pkt.data);
4538 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4541 MOVMuxContext *mov = s->priv_data;
4542 MOVTrack *track = &mov->tracks[index];
4543 AVStream *src_st = s->streams[src_index];
4545 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4546 AVRational rate = find_fps(s, src_st);
4548 /* compute the frame number */
4549 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4553 /* tmcd track based on video stream */
4554 track->mode = mov->mode;
4555 track->tag = MKTAG('t','m','c','d');
4556 track->src_track = src_index;
4557 track->timescale = mov->tracks[src_index].timescale;
4558 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4559 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4561 /* set st to src_st for metadata access*/
4564 /* encode context: tmcd data stream */
4565 track->enc = avcodec_alloc_context3(NULL);
4566 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4567 track->enc->codec_tag = track->tag;
4568 track->enc->time_base = av_inv_q(rate);
4570 /* the tmcd track just contains one packet with the frame number */
4571 pkt.data = av_malloc(pkt.size);
4572 AV_WB32(pkt.data, tc.start);
4573 ret = ff_mov_write_packet(s, &pkt);
4579 * st->disposition controls the "enabled" flag in the tkhd tag.
4580 * QuickTime will not play a track if it is not enabled. So make sure
4581 * that one track of each type (audio, video, subtitle) is enabled.
4583 * Subtitles are special. For audio and video, setting "enabled" also
4584 * makes the track "default" (i.e. it is rendered when played). For
4585 * subtitles, an "enabled" subtitle is not rendered by default, but
4586 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4589 static void enable_tracks(AVFormatContext *s)
4591 MOVMuxContext *mov = s->priv_data;
4593 int enabled[AVMEDIA_TYPE_NB];
4594 int first[AVMEDIA_TYPE_NB];
4596 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4601 for (i = 0; i < s->nb_streams; i++) {
4602 AVStream *st = s->streams[i];
4604 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4605 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4608 if (first[st->codec->codec_type] < 0)
4609 first[st->codec->codec_type] = i;
4610 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4611 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4612 enabled[st->codec->codec_type]++;
4616 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4618 case AVMEDIA_TYPE_VIDEO:
4619 case AVMEDIA_TYPE_AUDIO:
4620 case AVMEDIA_TYPE_SUBTITLE:
4622 mov->per_stream_grouping = 1;
4623 if (!enabled[i] && first[i] >= 0)
4624 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4630 static void mov_free(AVFormatContext *s)
4632 MOVMuxContext *mov = s->priv_data;
4635 if (mov->chapter_track) {
4636 if (mov->tracks[mov->chapter_track].enc)
4637 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4638 av_freep(&mov->tracks[mov->chapter_track].enc);
4641 for (i = 0; i < mov->nb_streams; i++) {
4642 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4643 ff_mov_close_hinting(&mov->tracks[i]);
4644 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4645 av_freep(&mov->tracks[i].enc);
4646 av_freep(&mov->tracks[i].cluster);
4647 av_freep(&mov->tracks[i].frag_info);
4649 if (mov->tracks[i].vos_len)
4650 av_freep(&mov->tracks[i].vos_data);
4653 av_freep(&mov->tracks);
4656 static uint32_t rgb_to_yuv(uint32_t rgb)
4661 r = (rgb >> 16) & 0xFF;
4662 g = (rgb >> 8) & 0xFF;
4665 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4666 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4667 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4669 return (y << 16) | (cr << 8) | cb;
4672 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4675 int i, width = 720, height = 480;
4676 int have_palette = 0, have_size = 0;
4677 uint32_t palette[16];
4678 char *cur = st->codec->extradata;
4680 while (cur && *cur) {
4681 if (strncmp("palette:", cur, 8) == 0) {
4683 count = sscanf(cur + 8,
4684 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4685 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4686 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4687 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4688 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4689 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4690 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4691 &palette[12], &palette[13], &palette[14], &palette[15]);
4693 for (i = 0; i < count; i++) {
4694 palette[i] = rgb_to_yuv(palette[i]);
4697 } else if (!strncmp("size:", cur, 5)) {
4698 sscanf(cur + 5, "%dx%d", &width, &height);
4701 if (have_palette && have_size)
4703 cur += strcspn(cur, "\n\r");
4704 cur += strspn(cur, "\n\r");
4707 track->vos_data = av_malloc(16*4);
4708 if (!track->vos_data)
4709 return AVERROR(ENOMEM);
4710 for (i = 0; i < 16; i++) {
4711 AV_WB32(track->vos_data + i * 4, palette[i]);
4713 track->vos_len = 16 * 4;
4715 st->codec->width = width;
4716 st->codec->height = track->height = height;
4721 static int mov_write_header(AVFormatContext *s)
4723 AVIOContext *pb = s->pb;
4724 MOVMuxContext *mov = s->priv_data;
4725 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4726 int i, ret, hint_track = 0, tmcd_track = 0;
4730 /* Default mode == MP4 */
4731 mov->mode = MODE_MP4;
4734 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4735 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4736 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4737 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4738 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4739 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4740 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4743 if (s->flags & AVFMT_FLAG_BITEXACT)
4746 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4747 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
4749 /* Set the FRAGMENT flag if any of the fragmentation methods are
4751 if (mov->max_fragment_duration || mov->max_fragment_size ||
4752 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4753 FF_MOV_FLAG_FRAG_KEYFRAME |
4754 FF_MOV_FLAG_FRAG_CUSTOM))
4755 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4757 /* Set other implicit flags immediately */
4758 if (mov->mode == MODE_ISM)
4759 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4760 FF_MOV_FLAG_FRAGMENT;
4761 if (mov->flags & FF_MOV_FLAG_DASH)
4762 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4763 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4765 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4766 mov->reserved_moov_size = -1;
4769 if (mov->use_editlist < 0) {
4770 mov->use_editlist = 1;
4771 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4772 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4773 // If we can avoid needing an edit list by shifting the
4774 // tracks, prefer that over (trying to) write edit lists
4775 // in fragmented output.
4776 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4777 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4778 mov->use_editlist = 0;
4781 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4782 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4783 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4785 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4786 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4788 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4789 * is enabled, we don't support non-seekable output at all. */
4790 if (!s->pb->seekable &&
4791 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4792 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4793 return AVERROR(EINVAL);
4796 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4797 if ((ret = mov_write_identification(pb, s)) < 0)
4801 mov->nb_streams = s->nb_streams;
4802 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4803 mov->chapter_track = mov->nb_streams++;
4805 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4806 /* Add hint tracks for each audio and video stream */
4807 hint_track = mov->nb_streams;
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 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4817 if (mov->mode == MODE_MOV) {
4818 tmcd_track = mov->nb_streams;
4820 /* +1 tmcd track for each video stream with a timecode */
4821 for (i = 0; i < s->nb_streams; i++) {
4822 AVStream *st = s->streams[i];
4823 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4824 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4825 mov->nb_meta_tmcd++;
4828 /* check if there is already a tmcd track to remux */
4829 if (mov->nb_meta_tmcd) {
4830 for (i = 0; i < s->nb_streams; i++) {
4831 AVStream *st = s->streams[i];
4832 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4833 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4834 "so timecode metadata are now ignored\n");
4835 mov->nb_meta_tmcd = 0;
4840 mov->nb_streams += mov->nb_meta_tmcd;
4843 // Reserve an extra stream for chapters for the case where chapters
4844 // are written in the trailer
4845 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4847 return AVERROR(ENOMEM);
4849 for (i = 0; i < s->nb_streams; i++) {
4850 AVStream *st= s->streams[i];
4851 MOVTrack *track= &mov->tracks[i];
4852 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4855 track->enc = st->codec;
4856 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4857 if (track->language < 0)
4858 track->language = 0;
4859 track->mode = mov->mode;
4860 track->tag = mov_find_codec_tag(s, track);
4862 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4863 "codec not currently supported in container\n",
4864 avcodec_get_name(st->codec->codec_id), i);
4865 ret = AVERROR(EINVAL);
4868 /* If hinting of this track is enabled by a later hint track,
4869 * this is updated. */
4870 track->hint_track = -1;
4871 track->start_dts = AV_NOPTS_VALUE;
4872 track->start_cts = AV_NOPTS_VALUE;
4873 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4874 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4875 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4876 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4877 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4878 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4879 ret = AVERROR(EINVAL);
4882 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4884 if (mov->video_track_timescale) {
4885 track->timescale = mov->video_track_timescale;
4887 track->timescale = st->time_base.den;
4888 while(track->timescale < 10000)
4889 track->timescale *= 2;
4891 if (st->codec->width > 65535 || st->codec->height > 65535) {
4892 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4893 ret = AVERROR(EINVAL);
4896 if (track->mode == MODE_MOV && track->timescale > 100000)
4897 av_log(s, AV_LOG_WARNING,
4898 "WARNING codec timebase is very high. If duration is too long,\n"
4899 "file may not be playable by quicktime. Specify a shorter timebase\n"
4900 "or choose different container.\n");
4901 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4902 track->timescale = st->codec->sample_rate;
4903 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4904 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4905 track->audio_vbr = 1;
4906 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4907 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4908 st->codec->codec_id == AV_CODEC_ID_ILBC){
4909 if (!st->codec->block_align) {
4910 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4911 ret = AVERROR(EINVAL);
4914 track->sample_size = st->codec->block_align;
4915 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4916 track->audio_vbr = 1;
4918 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4920 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4921 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4922 track->audio_vbr = 1;
4924 if (track->mode != MODE_MOV &&
4925 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4926 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4927 i, track->enc->sample_rate);
4928 ret = AVERROR(EINVAL);
4931 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4932 track->timescale = st->time_base.den;
4933 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4934 track->timescale = st->time_base.den;
4936 track->timescale = MOV_TIMESCALE;
4939 track->height = st->codec->height;
4940 /* The ism specific timescale isn't mandatory, but is assumed by
4941 * some tools, such as mp4split. */
4942 if (mov->mode == MODE_ISM)
4943 track->timescale = 10000000;
4945 avpriv_set_pts_info(st, 64, 1, track->timescale);
4947 /* copy extradata if it exists */
4948 if (st->codec->extradata_size) {
4949 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4950 mov_create_dvd_sub_decoder_specific_info(track, st);
4951 else if (!TAG_IS_AVCI(track->tag)){
4952 track->vos_len = st->codec->extradata_size;
4953 track->vos_data = av_malloc(track->vos_len);
4954 if (!track->vos_data) {
4955 ret = AVERROR(ENOMEM);
4958 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4963 for (i = 0; i < s->nb_streams; i++) {
4965 AVStream *st= s->streams[i];
4966 MOVTrack *track= &mov->tracks[i];
4968 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4969 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4972 for (j = 0; j < s->nb_streams; j++) {
4973 AVStream *stj= s->streams[j];
4974 MOVTrack *trackj= &mov->tracks[j];
4978 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4979 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4980 trackj->language != track->language ||
4981 trackj->tag != track->tag
4984 track->multichannel_as_mono++;
4991 if (mov->reserved_moov_size){
4992 mov->reserved_moov_pos= avio_tell(pb);
4993 if (mov->reserved_moov_size > 0)
4994 avio_skip(pb, mov->reserved_moov_size);
4997 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4998 /* If no fragmentation options have been set, set a default. */
4999 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5000 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5001 !mov->max_fragment_duration && !mov->max_fragment_size)
5002 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5004 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5005 mov->reserved_moov_pos = avio_tell(pb);
5006 mov_write_mdat_tag(pb, mov);
5009 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
5010 mov->time = ff_iso8601_to_unix_time(t->value);
5012 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5014 if (mov->chapter_track)
5015 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5018 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5019 /* Initialize the hint tracks for each audio and video stream */
5020 for (i = 0; i < s->nb_streams; i++) {
5021 AVStream *st = s->streams[i];
5022 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5023 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5024 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5031 if (mov->nb_meta_tmcd) {
5032 /* Initialize the tmcd tracks */
5033 for (i = 0; i < s->nb_streams; i++) {
5034 AVStream *st = s->streams[i];
5037 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5039 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5042 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5051 if (mov->flags & FF_MOV_FLAG_ISML)
5052 mov_write_isml_manifest(pb, mov);
5054 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5055 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5056 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5059 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5060 mov->reserved_moov_pos = avio_tell(pb);
5069 static int get_moov_size(AVFormatContext *s)
5072 AVIOContext *moov_buf;
5073 MOVMuxContext *mov = s->priv_data;
5075 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5077 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5079 return ffio_close_null_buf(moov_buf);
5082 static int get_sidx_size(AVFormatContext *s)
5086 MOVMuxContext *mov = s->priv_data;
5088 if ((ret = ffio_open_null_buf(&buf)) < 0)
5090 mov_write_sidx_tags(buf, mov, -1, 0);
5091 return ffio_close_null_buf(buf);
5095 * This function gets the moov size if moved to the top of the file: the chunk
5096 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5097 * entries) when the moov is moved to the beginning, so the size of the moov
5098 * would change. It also updates the chunk offset tables.
5100 static int compute_moov_size(AVFormatContext *s)
5102 int i, moov_size, moov_size2;
5103 MOVMuxContext *mov = s->priv_data;
5105 moov_size = get_moov_size(s);
5109 for (i = 0; i < mov->nb_streams; i++)
5110 mov->tracks[i].data_offset += moov_size;
5112 moov_size2 = get_moov_size(s);
5116 /* if the size changed, we just switched from stco to co64 and need to
5117 * update the offsets */
5118 if (moov_size2 != moov_size)
5119 for (i = 0; i < mov->nb_streams; i++)
5120 mov->tracks[i].data_offset += moov_size2 - moov_size;
5125 static int compute_sidx_size(AVFormatContext *s)
5128 MOVMuxContext *mov = s->priv_data;
5130 sidx_size = get_sidx_size(s);
5134 for (i = 0; i < mov->nb_streams; i++)
5135 mov->tracks[i].data_offset += sidx_size;
5140 static int shift_data(AVFormatContext *s)
5142 int ret = 0, moov_size;
5143 MOVMuxContext *mov = s->priv_data;
5144 int64_t pos, pos_end = avio_tell(s->pb);
5145 uint8_t *buf, *read_buf[2];
5146 int read_buf_id = 0;
5148 AVIOContext *read_pb;
5150 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5151 moov_size = compute_sidx_size(s);
5153 moov_size = compute_moov_size(s);
5157 buf = av_malloc(moov_size * 2);
5159 return AVERROR(ENOMEM);
5161 read_buf[1] = buf + moov_size;
5163 /* Shift the data: the AVIO context of the output can only be used for
5164 * writing, so we re-open the same output, but for reading. It also avoids
5165 * a read/seek/write/seek back and forth. */
5167 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5169 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5170 "the second pass (faststart)\n", s->filename);
5174 /* mark the end of the shift to up to the last data we wrote, and get ready
5176 pos_end = avio_tell(s->pb);
5177 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
5179 /* start reading at where the new moov will be placed */
5180 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
5181 pos = avio_tell(read_pb);
5183 #define READ_BLOCK do { \
5184 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5188 /* shift data by chunk of at most moov_size */
5193 n = read_size[read_buf_id];
5196 avio_write(s->pb, read_buf[read_buf_id], n);
5198 } while (pos < pos_end);
5199 avio_close(read_pb);
5206 static int mov_write_trailer(AVFormatContext *s)
5208 MOVMuxContext *mov = s->priv_data;
5209 AVIOContext *pb = s->pb;
5215 * Before actually writing the trailer, make sure that there are no
5216 * dangling subtitles, that need a terminating sample.
5218 for (i = 0; i < mov->nb_streams; i++) {
5219 MOVTrack *trk = &mov->tracks[i];
5220 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5221 !trk->last_sample_is_subtitle_end) {
5222 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5223 trk->last_sample_is_subtitle_end = 1;
5227 // If there were no chapters when the header was written, but there
5228 // are chapters now, write them in the trailer. This only works
5229 // when we are not doing fragments.
5230 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5231 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5232 mov->chapter_track = mov->nb_streams++;
5233 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5238 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5239 moov_pos = avio_tell(pb);
5241 /* Write size of mdat tag */
5242 if (mov->mdat_size + 8 <= UINT32_MAX) {
5243 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5244 avio_wb32(pb, mov->mdat_size + 8);
5246 /* overwrite 'wide' placeholder atom */
5247 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5248 /* special value: real atom size will be 64 bit value after
5251 ffio_wfourcc(pb, "mdat");
5252 avio_wb64(pb, mov->mdat_size + 16);
5254 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
5256 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5257 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5258 res = shift_data(s);
5260 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5261 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5264 } else if (mov->reserved_moov_size > 0) {
5266 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5268 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
5270 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5271 res = AVERROR(EINVAL);
5274 avio_wb32(pb, size);
5275 ffio_wfourcc(pb, "free");
5276 ffio_fill(pb, 0, size - 8);
5277 avio_seek(pb, moov_pos, SEEK_SET);
5279 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5284 mov_auto_flush_fragment(s);
5285 for (i = 0; i < mov->nb_streams; i++)
5286 mov->tracks[i].data_offset = 0;
5287 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5288 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5289 res = shift_data(s);
5291 int64_t end = avio_tell(pb);
5292 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5293 mov_write_sidx_tags(pb, mov, -1, 0);
5294 avio_seek(pb, end, SEEK_SET);
5295 mov_write_mfra_tag(pb, mov);
5298 mov_write_mfra_tag(pb, mov);
5308 #if CONFIG_MOV_MUXER
5310 AVOutputFormat ff_mov_muxer = {
5312 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5313 .extensions = "mov",
5314 .priv_data_size = sizeof(MOVMuxContext),
5315 .audio_codec = AV_CODEC_ID_AAC,
5316 .video_codec = CONFIG_LIBX264_ENCODER ?
5317 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5318 .write_header = mov_write_header,
5319 .write_packet = mov_write_packet,
5320 .write_trailer = mov_write_trailer,
5321 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5322 .codec_tag = (const AVCodecTag* const []){
5323 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5325 .priv_class = &mov_muxer_class,
5328 #if CONFIG_TGP_MUXER
5330 AVOutputFormat ff_tgp_muxer = {
5332 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5333 .extensions = "3gp",
5334 .priv_data_size = sizeof(MOVMuxContext),
5335 .audio_codec = AV_CODEC_ID_AMR_NB,
5336 .video_codec = AV_CODEC_ID_H263,
5337 .write_header = mov_write_header,
5338 .write_packet = mov_write_packet,
5339 .write_trailer = mov_write_trailer,
5340 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5341 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5342 .priv_class = &tgp_muxer_class,
5345 #if CONFIG_MP4_MUXER
5347 AVOutputFormat ff_mp4_muxer = {
5349 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5350 .mime_type = "application/mp4",
5351 .extensions = "mp4",
5352 .priv_data_size = sizeof(MOVMuxContext),
5353 .audio_codec = AV_CODEC_ID_AAC,
5354 .video_codec = CONFIG_LIBX264_ENCODER ?
5355 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5356 .write_header = mov_write_header,
5357 .write_packet = mov_write_packet,
5358 .write_trailer = mov_write_trailer,
5359 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5360 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5361 .priv_class = &mp4_muxer_class,
5364 #if CONFIG_PSP_MUXER
5366 AVOutputFormat ff_psp_muxer = {
5368 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5369 .extensions = "mp4,psp",
5370 .priv_data_size = sizeof(MOVMuxContext),
5371 .audio_codec = AV_CODEC_ID_AAC,
5372 .video_codec = CONFIG_LIBX264_ENCODER ?
5373 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
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 []){ ff_mp4_obj_type, 0 },
5379 .priv_class = &psp_muxer_class,
5382 #if CONFIG_TG2_MUXER
5384 AVOutputFormat ff_tg2_muxer = {
5386 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5387 .extensions = "3g2",
5388 .priv_data_size = sizeof(MOVMuxContext),
5389 .audio_codec = AV_CODEC_ID_AMR_NB,
5390 .video_codec = AV_CODEC_ID_H263,
5391 .write_header = mov_write_header,
5392 .write_packet = mov_write_packet,
5393 .write_trailer = mov_write_trailer,
5394 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5395 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5396 .priv_class = &tg2_muxer_class,
5399 #if CONFIG_IPOD_MUXER
5401 AVOutputFormat ff_ipod_muxer = {
5403 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5404 .mime_type = "application/mp4",
5405 .extensions = "m4v,m4a",
5406 .priv_data_size = sizeof(MOVMuxContext),
5407 .audio_codec = AV_CODEC_ID_AAC,
5408 .video_codec = AV_CODEC_ID_H264,
5409 .write_header = mov_write_header,
5410 .write_packet = mov_write_packet,
5411 .write_trailer = mov_write_trailer,
5412 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5413 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5414 .priv_class = &ipod_muxer_class,
5417 #if CONFIG_ISMV_MUXER
5419 AVOutputFormat ff_ismv_muxer = {
5421 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5422 .mime_type = "application/mp4",
5423 .extensions = "ismv,isma",
5424 .priv_data_size = sizeof(MOVMuxContext),
5425 .audio_codec = AV_CODEC_ID_AAC,
5426 .video_codec = AV_CODEC_ID_H264,
5427 .write_header = mov_write_header,
5428 .write_packet = mov_write_packet,
5429 .write_trailer = mov_write_trailer,
5430 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5431 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5432 .priv_class = &ismv_muxer_class,
5435 #if CONFIG_F4V_MUXER
5437 AVOutputFormat ff_f4v_muxer = {
5439 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5440 .mime_type = "application/f4v",
5441 .extensions = "f4v",
5442 .priv_data_size = sizeof(MOVMuxContext),
5443 .audio_codec = AV_CODEC_ID_AAC,
5444 .video_codec = AV_CODEC_ID_H264,
5445 .write_header = mov_write_header,
5446 .write_packet = mov_write_packet,
5447 .write_trailer = mov_write_trailer,
5448 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5449 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5450 .priv_class = &f4v_muxer_class,