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)
1039 if (track->vos_data && track->vos_len > 0x29) {
1040 if (track->vos_data[0] == 0x00 &&
1041 track->vos_data[1] == 0x00 &&
1042 track->vos_data[2] == 0x02 &&
1043 track->vos_data[3] == 0x80 &&
1044 (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1045 /* looks like a DNxHD bit stream */
1046 interlaced = (track->vos_data[5] & 2);
1047 cid = AV_RB32(track->vos_data + 0x28);
1049 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1053 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1057 avio_wb32(pb, 24); /* size */
1058 ffio_wfourcc(pb, "ACLR");
1059 ffio_wfourcc(pb, "ACLR");
1060 ffio_wfourcc(pb, "0001");
1061 if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1062 track->enc->color_range == AVCOL_RANGE_UNSPECIFIED) {
1063 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1064 } else { /* Full range (0-255) */
1065 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1067 avio_wb32(pb, 0); /* unknown */
1069 avio_wb32(pb, 24); /* size */
1070 ffio_wfourcc(pb, "APRG");
1071 ffio_wfourcc(pb, "APRG");
1072 ffio_wfourcc(pb, "0001");
1073 avio_wb32(pb, 1); /* unknown */
1074 avio_wb32(pb, 0); /* unknown */
1076 avio_wb32(pb, 120); /* size */
1077 ffio_wfourcc(pb, "ARES");
1078 ffio_wfourcc(pb, "ARES");
1079 ffio_wfourcc(pb, "0001");
1080 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1081 avio_wb32(pb, track->enc->width);
1082 /* values below are based on samples created with quicktime and avid codecs */
1084 avio_wb32(pb, track->enc->height / 2);
1085 avio_wb32(pb, 2); /* unknown */
1086 avio_wb32(pb, 0); /* unknown */
1087 avio_wb32(pb, 4); /* unknown */
1089 avio_wb32(pb, track->enc->height);
1090 avio_wb32(pb, 1); /* unknown */
1091 avio_wb32(pb, 0); /* unknown */
1092 if (track->enc->height == 1080)
1093 avio_wb32(pb, 5); /* unknown */
1095 avio_wb32(pb, 6); /* unknown */
1098 for (i = 0; i < 10; i++)
1104 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1107 ffio_wfourcc(pb, "DpxE");
1108 if (track->enc->extradata_size >= 12 &&
1109 !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1110 avio_wb32(pb, track->enc->extradata[11]);
1117 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1119 int tag = track->enc->codec_tag;
1121 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1124 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1125 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1126 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1127 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1128 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1129 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1130 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1131 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1132 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1133 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1138 static const AVCodecTag codec_ipod_tags[] = {
1139 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1140 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1141 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1142 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1143 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1144 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1145 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1146 { AV_CODEC_ID_NONE, 0 },
1149 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1151 int tag = track->enc->codec_tag;
1153 // keep original tag for subs, ipod supports both formats
1154 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1155 (tag == MKTAG('t', 'x', '3', 'g') ||
1156 tag == MKTAG('t', 'e', 'x', 't'))))
1157 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1159 if (!av_match_ext(s->filename, "m4a") &&
1160 !av_match_ext(s->filename, "m4b") &&
1161 !av_match_ext(s->filename, "m4v"))
1162 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1163 "Quicktime/Ipod might not play the file\n");
1168 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1172 if (track->enc->width == 720) { /* SD */
1173 if (track->enc->height == 480) { /* NTSC */
1174 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1175 else tag = MKTAG('d','v','c',' ');
1176 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1177 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1178 else tag = MKTAG('d','v','p','p');
1179 } else if (track->enc->height == 720) { /* HD 720 line */
1180 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1181 else tag = MKTAG('d','v','h','p');
1182 } else if (track->enc->height == 1080) { /* HD 1080 line */
1183 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1184 else tag = MKTAG('d','v','h','6');
1186 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1193 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1195 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1196 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1197 if (av_timecode_check_frame_rate(rate) < 0) {
1198 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1199 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1200 rate = st->avg_frame_rate;
1206 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1208 int tag = track->enc->codec_tag;
1209 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1210 AVStream *st = track->st;
1211 int rate = av_q2d(find_fps(s, st));
1214 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1216 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1217 if (track->enc->width == 1280 && track->enc->height == 720) {
1219 if (rate == 24) tag = MKTAG('x','d','v','4');
1220 else if (rate == 25) tag = MKTAG('x','d','v','5');
1221 else if (rate == 30) tag = MKTAG('x','d','v','1');
1222 else if (rate == 50) tag = MKTAG('x','d','v','a');
1223 else if (rate == 60) tag = MKTAG('x','d','v','9');
1225 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1227 if (rate == 24) tag = MKTAG('x','d','v','6');
1228 else if (rate == 25) tag = MKTAG('x','d','v','7');
1229 else if (rate == 30) tag = MKTAG('x','d','v','8');
1231 if (rate == 25) tag = MKTAG('x','d','v','3');
1232 else if (rate == 30) tag = MKTAG('x','d','v','2');
1234 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1236 if (rate == 24) tag = MKTAG('x','d','v','d');
1237 else if (rate == 25) tag = MKTAG('x','d','v','e');
1238 else if (rate == 30) tag = MKTAG('x','d','v','f');
1240 if (rate == 25) tag = MKTAG('x','d','v','c');
1241 else if (rate == 30) tag = MKTAG('x','d','v','b');
1244 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1245 if (track->enc->width == 1280 && track->enc->height == 720) {
1247 if (rate == 24) tag = MKTAG('x','d','5','4');
1248 else if (rate == 25) tag = MKTAG('x','d','5','5');
1249 else if (rate == 30) tag = MKTAG('x','d','5','1');
1250 else if (rate == 50) tag = MKTAG('x','d','5','a');
1251 else if (rate == 60) tag = MKTAG('x','d','5','9');
1253 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1255 if (rate == 24) tag = MKTAG('x','d','5','d');
1256 else if (rate == 25) tag = MKTAG('x','d','5','e');
1257 else if (rate == 30) tag = MKTAG('x','d','5','f');
1259 if (rate == 25) tag = MKTAG('x','d','5','c');
1260 else if (rate == 30) tag = MKTAG('x','d','5','b');
1268 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1270 int tag = track->enc->codec_tag;
1271 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1272 AVStream *st = track->st;
1273 int rate = av_q2d(find_fps(s, st));
1276 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1278 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1279 if (track->enc->width == 960 && track->enc->height == 720) {
1281 if (rate == 24) tag = MKTAG('a','i','5','p');
1282 else if (rate == 25) tag = MKTAG('a','i','5','q');
1283 else if (rate == 30) tag = MKTAG('a','i','5','p');
1284 else if (rate == 50) tag = MKTAG('a','i','5','q');
1285 else if (rate == 60) tag = MKTAG('a','i','5','p');
1287 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1289 if (rate == 24) tag = MKTAG('a','i','5','3');
1290 else if (rate == 25) tag = MKTAG('a','i','5','2');
1291 else if (rate == 30) tag = MKTAG('a','i','5','3');
1293 if (rate == 50) tag = MKTAG('a','i','5','5');
1294 else if (rate == 60) tag = MKTAG('a','i','5','6');
1297 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1298 if (track->enc->width == 1280 && track->enc->height == 720) {
1300 if (rate == 24) tag = MKTAG('a','i','1','p');
1301 else if (rate == 25) tag = MKTAG('a','i','1','q');
1302 else if (rate == 30) tag = MKTAG('a','i','1','p');
1303 else if (rate == 50) tag = MKTAG('a','i','1','q');
1304 else if (rate == 60) tag = MKTAG('a','i','1','p');
1306 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1308 if (rate == 24) tag = MKTAG('a','i','1','3');
1309 else if (rate == 25) tag = MKTAG('a','i','1','2');
1310 else if (rate == 30) tag = MKTAG('a','i','1','3');
1312 if (rate == 25) tag = MKTAG('a','i','1','5');
1313 else if (rate == 50) tag = MKTAG('a','i','1','5');
1314 else if (rate == 60) tag = MKTAG('a','i','1','6');
1316 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1317 || track->enc->width == 3840 && track->enc->height == 2160
1318 || track->enc->width == 2048 && track->enc->height == 1080) {
1319 tag = MKTAG('a','i','v','x');
1326 static const struct {
1327 enum AVPixelFormat pix_fmt;
1330 } mov_pix_fmt_tags[] = {
1331 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1332 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1333 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1334 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1335 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1336 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1337 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1338 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1339 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1340 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1341 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1342 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1343 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1344 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1345 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1348 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1350 int tag = track->enc->codec_tag;
1352 enum AVPixelFormat pix_fmt;
1354 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1355 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1356 tag = mov_pix_fmt_tags[i].tag;
1357 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1358 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1363 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1364 track->enc->bits_per_coded_sample);
1365 if (tag == MKTAG('r','a','w',' ') &&
1366 track->enc->pix_fmt != pix_fmt &&
1367 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1368 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1369 av_get_pix_fmt_name(track->enc->pix_fmt));
1373 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1375 int tag = track->enc->codec_tag;
1377 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1378 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1379 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1380 track->enc->codec_id == AV_CODEC_ID_H263 ||
1381 track->enc->codec_id == AV_CODEC_ID_H264 ||
1382 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1383 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1384 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1385 tag = mov_get_dv_codec_tag(s, track);
1386 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1387 tag = mov_get_rawvideo_codec_tag(s, track);
1388 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1389 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1390 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1391 tag = mov_get_h264_codec_tag(s, track);
1392 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1393 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1394 if (!tag) { // if no mac fcc found, try with Microsoft tags
1395 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1397 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1398 "the file may be unplayable!\n");
1400 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1401 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1402 if (!tag) { // if no mac fcc found, try with Microsoft tags
1403 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1405 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1406 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1407 "the file may be unplayable!\n");
1410 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1411 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1417 static const AVCodecTag codec_3gp_tags[] = {
1418 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1419 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1420 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1421 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1422 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1423 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1424 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1425 { AV_CODEC_ID_NONE, 0 },
1428 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1429 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1430 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1431 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1432 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1433 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1434 { AV_CODEC_ID_NONE, 0 },
1437 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1441 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1442 tag = mp4_get_codec_tag(s, track);
1443 else if (track->mode == MODE_ISM) {
1444 tag = mp4_get_codec_tag(s, track);
1445 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1446 tag = MKTAG('w', 'm', 'a', ' ');
1447 } else if (track->mode == MODE_IPOD)
1448 tag = ipod_get_codec_tag(s, track);
1449 else if (track->mode & MODE_3GP)
1450 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1451 else if (track->mode == MODE_F4V)
1452 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1454 tag = mov_get_codec_tag(s, track);
1459 /** Write uuid atom.
1460 * Needed to make file play in iPods running newest firmware
1461 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1463 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1466 ffio_wfourcc(pb, "uuid");
1467 avio_wb32(pb, 0x6b6840f2);
1468 avio_wb32(pb, 0x5f244fc5);
1469 avio_wb32(pb, 0xba39a51b);
1470 avio_wb32(pb, 0xcf0323f3);
1475 static const uint16_t fiel_data[] = {
1476 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1479 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1481 unsigned mov_field_order = 0;
1482 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1483 mov_field_order = fiel_data[track->enc->field_order];
1487 ffio_wfourcc(pb, "fiel");
1488 avio_wb16(pb, mov_field_order);
1492 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1494 int64_t pos = avio_tell(pb);
1495 avio_wb32(pb, 0); /* size */
1496 avio_wl32(pb, track->tag); // store it byteswapped
1497 avio_wb32(pb, 0); /* Reserved */
1498 avio_wb16(pb, 0); /* Reserved */
1499 avio_wb16(pb, 1); /* Data-reference index */
1501 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1502 mov_write_esds_tag(pb, track);
1503 else if (track->enc->extradata_size)
1504 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1506 return update_size(pb, pos);
1509 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1512 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1513 track->enc->sample_aspect_ratio.den, INT_MAX);
1516 ffio_wfourcc(pb, "pasp");
1517 avio_wb32(pb, sar.num);
1518 avio_wb32(pb, sar.den);
1522 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1524 // Ref: https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1526 if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1527 track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1528 track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1529 if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1530 || (track->enc->width == 1280 && track->enc->height == 720)) {
1531 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1532 track->enc->color_primaries = AVCOL_PRI_BT709;
1533 } else if (track->enc->width == 720 && track->height == 576) {
1534 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1535 track->enc->color_primaries = AVCOL_PRI_BT470BG;
1536 } else if (track->enc->width == 720 &&
1537 (track->height == 486 || track->height == 480)) {
1538 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1539 track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
1541 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1543 switch (track->enc->color_primaries) {
1544 case AVCOL_PRI_BT709:
1545 track->enc->color_trc = AVCOL_TRC_BT709;
1546 track->enc->colorspace = AVCOL_SPC_BT709;
1548 case AVCOL_PRI_SMPTE170M:
1549 case AVCOL_PRI_BT470BG:
1550 track->enc->color_trc = AVCOL_TRC_BT709;
1551 track->enc->colorspace = AVCOL_SPC_SMPTE170M;
1557 ffio_wfourcc(pb, "colr");
1558 ffio_wfourcc(pb, "nclc");
1559 switch (track->enc->color_primaries) {
1560 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1561 case AVCOL_PRI_SMPTE170M:
1562 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1563 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1564 default: avio_wb16(pb, 2);
1566 switch (track->enc->color_trc) {
1567 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1568 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1569 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1570 default: avio_wb16(pb, 2);
1572 switch (track->enc->colorspace) {
1573 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1574 case AVCOL_PRI_SMPTE170M: avio_wb16(pb, 6); break;
1575 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 7); break;
1576 default: avio_wb16(pb, 2);
1582 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1584 AVDictionaryEntry *encoder;
1585 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1586 || (track->enc->width == 1440 && track->enc->height == 1080)
1587 || (track->enc->width == 1920 && track->enc->height == 1080);
1589 if (track->mode == MODE_MOV &&
1590 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1591 av_strlcpy(compressor_name, encoder->value, 32);
1592 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1593 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1594 AVStream *st = track->st;
1595 int rate = av_q2d(find_fps(NULL, st));
1596 av_strlcatf(compressor_name, len, "XDCAM");
1597 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1598 av_strlcatf(compressor_name, len, " HD422");
1599 } else if(track->enc->width == 1440) {
1600 av_strlcatf(compressor_name, len, " HD");
1602 av_strlcatf(compressor_name, len, " EX");
1604 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1606 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1610 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1612 int64_t pos = avio_tell(pb);
1613 char compressor_name[32] = { 0 };
1616 avio_wb32(pb, 0); /* size */
1617 avio_wl32(pb, track->tag); // store it byteswapped
1618 avio_wb32(pb, 0); /* Reserved */
1619 avio_wb16(pb, 0); /* Reserved */
1620 avio_wb16(pb, 1); /* Data-reference index */
1622 avio_wb16(pb, 0); /* Codec stream version */
1623 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1624 if (track->mode == MODE_MOV) {
1625 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1626 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1627 avio_wb32(pb, 0); /* Temporal Quality */
1628 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1630 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1631 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1634 avio_wb32(pb, 0); /* Reserved */
1635 avio_wb32(pb, 0); /* Reserved */
1636 avio_wb32(pb, 0); /* Reserved */
1638 avio_wb16(pb, track->enc->width); /* Video width */
1639 avio_wb16(pb, track->height); /* Video height */
1640 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1641 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1642 avio_wb32(pb, 0); /* Data size (= 0) */
1643 avio_wb16(pb, 1); /* Frame count (= 1) */
1645 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1646 find_compressor(compressor_name, 32, track);
1647 avio_w8(pb, strlen(compressor_name));
1648 avio_write(pb, compressor_name, 31);
1650 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1651 avio_wb16(pb, track->enc->bits_per_coded_sample);
1653 avio_wb16(pb, 0x18); /* Reserved */
1654 avio_wb16(pb, 0xffff); /* Reserved */
1655 if (track->tag == MKTAG('m','p','4','v'))
1656 mov_write_esds_tag(pb, track);
1657 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1658 mov_write_d263_tag(pb);
1659 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1660 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1661 mov_write_extradata_tag(pb, track);
1663 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1664 mov_write_avid_tag(pb, track);
1666 } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1667 mov_write_hvcc_tag(pb, track);
1668 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1669 mov_write_avcc_tag(pb, track);
1670 if (track->mode == MODE_IPOD)
1671 mov_write_uuid_tag_ipod(pb);
1672 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1673 mov_write_dvc1_tag(pb, track);
1674 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1675 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1676 /* Don't write any potential extradata here - the cropping
1677 * is signalled via the normal width/height fields. */
1678 } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1679 if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1680 mov_write_dpxe_tag(pb, track);
1681 } else if (track->vos_len > 0)
1682 mov_write_glbl_tag(pb, track);
1684 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1685 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1686 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1687 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1688 mov_write_fiel_tag(pb, track);
1690 if (mov->flags & FF_MOV_FLAG_WRITE_COLR)
1691 mov_write_colr_tag(pb, track);
1693 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1694 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1695 mov_write_pasp_tag(pb, track);
1698 /* extra padding for avid stsd */
1699 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1703 return update_size(pb, pos);
1706 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1708 int64_t pos = avio_tell(pb);
1709 avio_wb32(pb, 0); /* size */
1710 ffio_wfourcc(pb, "rtp ");
1711 avio_wb32(pb, 0); /* Reserved */
1712 avio_wb16(pb, 0); /* Reserved */
1713 avio_wb16(pb, 1); /* Data-reference index */
1715 avio_wb16(pb, 1); /* Hint track version */
1716 avio_wb16(pb, 1); /* Highest compatible version */
1717 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1719 avio_wb32(pb, 12); /* size */
1720 ffio_wfourcc(pb, "tims");
1721 avio_wb32(pb, track->timescale);
1723 return update_size(pb, pos);
1726 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1728 uint64_t str_size =strlen(reel_name);
1729 int64_t pos = avio_tell(pb);
1731 if (str_size >= UINT16_MAX){
1732 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1734 return AVERROR(EINVAL);
1737 avio_wb32(pb, 0); /* size */
1738 ffio_wfourcc(pb, "name"); /* Data format */
1739 avio_wb16(pb, str_size); /* string size */
1740 avio_wb16(pb, track->language); /* langcode */
1741 avio_write(pb, reel_name, str_size); /* reel name */
1742 return update_size(pb,pos);
1745 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1747 int64_t pos = avio_tell(pb);
1749 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1750 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1751 AVDictionaryEntry *t = NULL;
1753 if (nb_frames > 255) {
1754 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1755 return AVERROR(EINVAL);
1758 avio_wb32(pb, 0); /* size */
1759 ffio_wfourcc(pb, "tmcd"); /* Data format */
1760 avio_wb32(pb, 0); /* Reserved */
1761 avio_wb32(pb, 1); /* Data reference index */
1762 avio_wb32(pb, 0); /* Flags */
1763 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1764 avio_wb32(pb, track->timescale); /* Timescale */
1765 avio_wb32(pb, frame_duration); /* Frame duration */
1766 avio_w8(pb, nb_frames); /* Number of frames */
1767 avio_w8(pb, 0); /* Reserved */
1770 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1772 if (t && utf8len(t->value))
1773 mov_write_source_reference_tag(pb, track, t->value);
1775 avio_wb16(pb, 0); /* zero size */
1778 avio_wb32(pb, 0); /* size */
1779 ffio_wfourcc(pb, "tmcd"); /* Data format */
1780 avio_wb32(pb, 0); /* Reserved */
1781 avio_wb32(pb, 1); /* Data reference index */
1782 if (track->enc->extradata_size)
1783 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1785 return update_size(pb, pos);
1788 static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1790 int64_t pos = avio_tell(pb);
1791 avio_wb32(pb, 0); /* size */
1792 ffio_wfourcc(pb, "stsd");
1793 avio_wb32(pb, 0); /* version & flags */
1794 avio_wb32(pb, 1); /* entry count */
1795 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1796 mov_write_video_tag(pb, mov, track);
1797 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1798 mov_write_audio_tag(pb, track);
1799 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1800 mov_write_subtitle_tag(pb, track);
1801 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1802 mov_write_rtp_tag(pb, track);
1803 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1804 mov_write_tmcd_tag(pb, track);
1805 return update_size(pb, pos);
1808 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1810 MOVStts *ctts_entries;
1811 uint32_t entries = 0;
1815 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1817 return AVERROR(ENOMEM);
1818 ctts_entries[0].count = 1;
1819 ctts_entries[0].duration = track->cluster[0].cts;
1820 for (i = 1; i < track->entry; i++) {
1821 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1822 ctts_entries[entries].count++; /* compress */
1825 ctts_entries[entries].duration = track->cluster[i].cts;
1826 ctts_entries[entries].count = 1;
1829 entries++; /* last one */
1830 atom_size = 16 + (entries * 8);
1831 avio_wb32(pb, atom_size); /* size */
1832 ffio_wfourcc(pb, "ctts");
1833 avio_wb32(pb, 0); /* version & flags */
1834 avio_wb32(pb, entries); /* entry count */
1835 for (i = 0; i < entries; i++) {
1836 avio_wb32(pb, ctts_entries[i].count);
1837 avio_wb32(pb, ctts_entries[i].duration);
1839 av_free(ctts_entries);
1843 /* Time to sample atom */
1844 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1846 MOVStts *stts_entries;
1847 uint32_t entries = -1;
1851 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1852 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1854 return AVERROR(ENOMEM);
1855 stts_entries[0].count = track->sample_count;
1856 stts_entries[0].duration = 1;
1859 stts_entries = track->entry ?
1860 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1862 if (track->entry && !stts_entries)
1863 return AVERROR(ENOMEM);
1864 for (i = 0; i < track->entry; i++) {
1865 int duration = get_cluster_duration(track, i);
1866 if (i && duration == stts_entries[entries].duration) {
1867 stts_entries[entries].count++; /* compress */
1870 stts_entries[entries].duration = duration;
1871 stts_entries[entries].count = 1;
1874 entries++; /* last one */
1876 atom_size = 16 + (entries * 8);
1877 avio_wb32(pb, atom_size); /* size */
1878 ffio_wfourcc(pb, "stts");
1879 avio_wb32(pb, 0); /* version & flags */
1880 avio_wb32(pb, entries); /* entry count */
1881 for (i = 0; i < entries; i++) {
1882 avio_wb32(pb, stts_entries[i].count);
1883 avio_wb32(pb, stts_entries[i].duration);
1885 av_free(stts_entries);
1889 static int mov_write_dref_tag(AVIOContext *pb)
1891 avio_wb32(pb, 28); /* size */
1892 ffio_wfourcc(pb, "dref");
1893 avio_wb32(pb, 0); /* version & flags */
1894 avio_wb32(pb, 1); /* entry count */
1896 avio_wb32(pb, 0xc); /* size */
1897 //FIXME add the alis and rsrc atom
1898 ffio_wfourcc(pb, "url ");
1899 avio_wb32(pb, 1); /* version & flags */
1904 static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1906 int64_t pos = avio_tell(pb);
1909 avio_wb32(pb, 0); /* size */
1910 ffio_wfourcc(pb, "stbl");
1911 mov_write_stsd_tag(pb, mov, track);
1912 mov_write_stts_tag(pb, track);
1913 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1914 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1915 track->has_keyframes && track->has_keyframes < track->entry)
1916 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1917 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1918 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1919 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1920 track->flags & MOV_TRACK_CTTS && track->entry) {
1922 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1925 mov_write_stsc_tag(pb, track);
1926 mov_write_stsz_tag(pb, track);
1927 mov_write_stco_tag(pb, track);
1928 return update_size(pb, pos);
1931 static int mov_write_dinf_tag(AVIOContext *pb)
1933 int64_t pos = avio_tell(pb);
1934 avio_wb32(pb, 0); /* size */
1935 ffio_wfourcc(pb, "dinf");
1936 mov_write_dref_tag(pb);
1937 return update_size(pb, pos);
1940 static int mov_write_nmhd_tag(AVIOContext *pb)
1943 ffio_wfourcc(pb, "nmhd");
1948 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1950 int64_t pos = avio_tell(pb);
1951 const char *font = "Lucida Grande";
1952 avio_wb32(pb, 0); /* size */
1953 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1954 avio_wb32(pb, 0); /* version & flags */
1955 avio_wb16(pb, 0); /* text font */
1956 avio_wb16(pb, 0); /* text face */
1957 avio_wb16(pb, 12); /* text size */
1958 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1959 avio_wb16(pb, 0x0000); /* text color (red) */
1960 avio_wb16(pb, 0x0000); /* text color (green) */
1961 avio_wb16(pb, 0x0000); /* text color (blue) */
1962 avio_wb16(pb, 0xffff); /* background color (red) */
1963 avio_wb16(pb, 0xffff); /* background color (green) */
1964 avio_wb16(pb, 0xffff); /* background color (blue) */
1965 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1966 avio_write(pb, font, strlen(font)); /* font name */
1967 return update_size(pb, pos);
1970 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1972 int64_t pos = avio_tell(pb);
1973 avio_wb32(pb, 0); /* size */
1974 ffio_wfourcc(pb, "gmhd");
1975 avio_wb32(pb, 0x18); /* gmin size */
1976 ffio_wfourcc(pb, "gmin");/* generic media info */
1977 avio_wb32(pb, 0); /* version & flags */
1978 avio_wb16(pb, 0x40); /* graphics mode = */
1979 avio_wb16(pb, 0x8000); /* opColor (r?) */
1980 avio_wb16(pb, 0x8000); /* opColor (g?) */
1981 avio_wb16(pb, 0x8000); /* opColor (b?) */
1982 avio_wb16(pb, 0); /* balance */
1983 avio_wb16(pb, 0); /* reserved */
1986 * This special text atom is required for
1987 * Apple Quicktime chapters. The contents
1988 * don't appear to be documented, so the
1989 * bytes are copied verbatim.
1991 if (track->tag != MKTAG('c','6','0','8')) {
1992 avio_wb32(pb, 0x2C); /* size */
1993 ffio_wfourcc(pb, "text");
1994 avio_wb16(pb, 0x01);
1995 avio_wb32(pb, 0x00);
1996 avio_wb32(pb, 0x00);
1997 avio_wb32(pb, 0x00);
1998 avio_wb32(pb, 0x01);
1999 avio_wb32(pb, 0x00);
2000 avio_wb32(pb, 0x00);
2001 avio_wb32(pb, 0x00);
2002 avio_wb32(pb, 0x00004000);
2003 avio_wb16(pb, 0x0000);
2006 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2007 int64_t tmcd_pos = avio_tell(pb);
2008 avio_wb32(pb, 0); /* size */
2009 ffio_wfourcc(pb, "tmcd");
2010 mov_write_tcmi_tag(pb, track);
2011 update_size(pb, tmcd_pos);
2013 return update_size(pb, pos);
2016 static int mov_write_smhd_tag(AVIOContext *pb)
2018 avio_wb32(pb, 16); /* size */
2019 ffio_wfourcc(pb, "smhd");
2020 avio_wb32(pb, 0); /* version & flags */
2021 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2022 avio_wb16(pb, 0); /* reserved */
2026 static int mov_write_vmhd_tag(AVIOContext *pb)
2028 avio_wb32(pb, 0x14); /* size (always 0x14) */
2029 ffio_wfourcc(pb, "vmhd");
2030 avio_wb32(pb, 0x01); /* version & flags */
2031 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2035 static int is_clcp_track(MOVTrack *track)
2037 return track->tag == MKTAG('c','7','0','8') ||
2038 track->tag == MKTAG('c','6','0','8');
2041 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2043 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2044 int64_t pos = avio_tell(pb);
2048 descr = "DataHandler";
2051 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2052 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2054 descr = "VideoHandler";
2055 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2057 descr = "SoundHandler";
2058 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2059 if (is_clcp_track(track)) {
2061 descr = "ClosedCaptionHandler";
2063 if (track->tag == MKTAG('t','x','3','g')) {
2065 } else if (track->tag == MKTAG('m','p','4','s')) {
2070 descr = "SubtitleHandler";
2072 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2074 descr = "HintHandler";
2075 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2077 descr = "TimeCodeHandler";
2080 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2081 track->enc->codec_tag);
2083 av_log(track->enc, AV_LOG_WARNING,
2084 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2085 tag_buf, track->enc->codec_tag);
2088 // hdlr.name is used by some players to identify the content title
2089 // of the track. So if an alternate handler description is
2090 // specified, use it.
2091 AVDictionaryEntry *t;
2092 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2093 if (t && utf8len(t->value))
2098 avio_wb32(pb, 0); /* size */
2099 ffio_wfourcc(pb, "hdlr");
2100 avio_wb32(pb, 0); /* Version & flags */
2101 avio_write(pb, hdlr, 4); /* handler */
2102 ffio_wfourcc(pb, hdlr_type); /* handler type */
2103 avio_wb32(pb, 0); /* reserved */
2104 avio_wb32(pb, 0); /* reserved */
2105 avio_wb32(pb, 0); /* reserved */
2106 if (!track || track->mode == MODE_MOV)
2107 avio_w8(pb, strlen(descr)); /* pascal string */
2108 avio_write(pb, descr, strlen(descr)); /* handler description */
2109 if (track && track->mode != MODE_MOV)
2110 avio_w8(pb, 0); /* c string */
2111 return update_size(pb, pos);
2114 static int mov_write_hmhd_tag(AVIOContext *pb)
2116 /* This atom must be present, but leaving the values at zero
2117 * seems harmless. */
2118 avio_wb32(pb, 28); /* size */
2119 ffio_wfourcc(pb, "hmhd");
2120 avio_wb32(pb, 0); /* version, flags */
2121 avio_wb16(pb, 0); /* maxPDUsize */
2122 avio_wb16(pb, 0); /* avgPDUsize */
2123 avio_wb32(pb, 0); /* maxbitrate */
2124 avio_wb32(pb, 0); /* avgbitrate */
2125 avio_wb32(pb, 0); /* reserved */
2129 static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2131 int64_t pos = avio_tell(pb);
2134 avio_wb32(pb, 0); /* size */
2135 ffio_wfourcc(pb, "minf");
2136 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2137 mov_write_vmhd_tag(pb);
2138 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2139 mov_write_smhd_tag(pb);
2140 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2141 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2142 mov_write_gmhd_tag(pb, track);
2144 mov_write_nmhd_tag(pb);
2146 } else if (track->tag == MKTAG('r','t','p',' ')) {
2147 mov_write_hmhd_tag(pb);
2148 } else if (track->tag == MKTAG('t','m','c','d')) {
2149 mov_write_gmhd_tag(pb, track);
2151 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2152 mov_write_hdlr_tag(pb, NULL);
2153 mov_write_dinf_tag(pb);
2154 if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2156 return update_size(pb, pos);
2159 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2162 int version = track->track_duration < INT32_MAX ? 0 : 1;
2164 if (track->mode == MODE_ISM)
2167 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2168 ffio_wfourcc(pb, "mdhd");
2169 avio_w8(pb, version);
2170 avio_wb24(pb, 0); /* flags */
2172 avio_wb64(pb, track->time);
2173 avio_wb64(pb, track->time);
2175 avio_wb32(pb, track->time); /* creation time */
2176 avio_wb32(pb, track->time); /* modification time */
2178 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2179 if (!track->entry && mov->mode == MODE_ISM)
2180 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2181 else if (!track->entry)
2182 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2184 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2185 avio_wb16(pb, track->language); /* language */
2186 avio_wb16(pb, 0); /* reserved (quality) */
2188 if (version != 0 && track->mode == MODE_MOV) {
2189 av_log(NULL, AV_LOG_ERROR,
2190 "FATAL error, file duration too long for timebase, this file will not be\n"
2191 "playable with quicktime. Choose a different timebase or a different\n"
2192 "container format\n");
2198 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2201 int64_t pos = avio_tell(pb);
2204 avio_wb32(pb, 0); /* size */
2205 ffio_wfourcc(pb, "mdia");
2206 mov_write_mdhd_tag(pb, mov, track);
2207 mov_write_hdlr_tag(pb, track);
2208 if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2210 return update_size(pb, pos);
2213 /* transformation matrix
2217 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2218 int16_t d, int16_t tx, int16_t ty)
2220 avio_wb32(pb, a << 16); /* 16.16 format */
2221 avio_wb32(pb, b << 16); /* 16.16 format */
2222 avio_wb32(pb, 0); /* u in 2.30 format */
2223 avio_wb32(pb, c << 16); /* 16.16 format */
2224 avio_wb32(pb, d << 16); /* 16.16 format */
2225 avio_wb32(pb, 0); /* v in 2.30 format */
2226 avio_wb32(pb, tx << 16); /* 16.16 format */
2227 avio_wb32(pb, ty << 16); /* 16.16 format */
2228 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2231 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2232 MOVTrack *track, AVStream *st)
2234 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2235 track->timescale, AV_ROUND_UP);
2236 int version = duration < INT32_MAX ? 0 : 1;
2237 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2243 if (mov->per_stream_grouping)
2246 group = st->codec->codec_type;
2249 if (track->flags & MOV_TRACK_ENABLED)
2250 flags |= MOV_TKHD_FLAG_ENABLED;
2252 if (track->mode == MODE_ISM)
2255 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2256 ffio_wfourcc(pb, "tkhd");
2257 avio_w8(pb, version);
2258 avio_wb24(pb, flags);
2260 avio_wb64(pb, track->time);
2261 avio_wb64(pb, track->time);
2263 avio_wb32(pb, track->time); /* creation time */
2264 avio_wb32(pb, track->time); /* modification time */
2266 avio_wb32(pb, track->track_id); /* track-id */
2267 avio_wb32(pb, 0); /* reserved */
2268 if (!track->entry && mov->mode == MODE_ISM)
2269 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2270 else if (!track->entry)
2271 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2273 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2275 avio_wb32(pb, 0); /* reserved */
2276 avio_wb32(pb, 0); /* reserved */
2277 avio_wb16(pb, 0); /* layer */
2278 avio_wb16(pb, group); /* alternate group) */
2279 /* Volume, only for audio */
2280 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2281 avio_wb16(pb, 0x0100);
2284 avio_wb16(pb, 0); /* reserved */
2286 /* Matrix structure */
2287 if (st && st->metadata) {
2288 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2289 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2291 if (rotation == 90) {
2292 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2293 } else if (rotation == 180) {
2294 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2295 } else if (rotation == 270) {
2296 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2298 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2300 /* Track width and height, for visual only */
2301 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2302 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2303 if (track->mode == MODE_MOV) {
2304 avio_wb32(pb, track->enc->width << 16);
2305 avio_wb32(pb, track->height << 16);
2307 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2308 if (!sample_aspect_ratio || track->height != track->enc->height)
2309 sample_aspect_ratio = 1;
2310 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2311 avio_wb32(pb, track->height * 0x10000);
2320 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2322 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2323 track->enc->sample_aspect_ratio.den);
2325 int64_t pos = avio_tell(pb);
2327 avio_wb32(pb, 0); /* size */
2328 ffio_wfourcc(pb, "tapt");
2331 ffio_wfourcc(pb, "clef");
2333 avio_wb32(pb, width << 16);
2334 avio_wb32(pb, track->enc->height << 16);
2337 ffio_wfourcc(pb, "prof");
2339 avio_wb32(pb, width << 16);
2340 avio_wb32(pb, track->enc->height << 16);
2343 ffio_wfourcc(pb, "enof");
2345 avio_wb32(pb, track->enc->width << 16);
2346 avio_wb32(pb, track->enc->height << 16);
2348 return update_size(pb, pos);
2351 // This box seems important for the psp playback ... without it the movie seems to hang
2352 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2355 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2356 track->timescale, AV_ROUND_UP);
2357 int version = duration < INT32_MAX ? 0 : 1;
2358 int entry_size, entry_count, size;
2359 int64_t delay, start_ct = track->start_cts;
2360 int64_t start_dts = track->start_dts;
2363 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2365 av_log(mov->fc, AV_LOG_DEBUG,
2366 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2367 track->cluster[0].dts, track->cluster[0].cts,
2368 start_dts, start_ct, track->track_id);
2369 start_dts = track->cluster[0].dts;
2370 start_ct = track->cluster[0].cts;
2374 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2375 track->timescale, AV_ROUND_DOWN);
2376 version |= delay < INT32_MAX ? 0 : 1;
2378 entry_size = (version == 1) ? 20 : 12;
2379 entry_count = 1 + (delay > 0);
2380 size = 24 + entry_count * entry_size;
2382 /* write the atom data */
2383 avio_wb32(pb, size);
2384 ffio_wfourcc(pb, "edts");
2385 avio_wb32(pb, size - 8);
2386 ffio_wfourcc(pb, "elst");
2387 avio_w8(pb, version);
2388 avio_wb24(pb, 0); /* flags */
2390 avio_wb32(pb, entry_count);
2391 if (delay > 0) { /* add an empty edit to delay presentation */
2392 /* In the positive delay case, the delay includes the cts
2393 * offset, and the second edit list entry below trims out
2394 * the same amount from the actual content. This makes sure
2395 * that the offsetted last sample is included in the edit
2396 * list duration as well. */
2398 avio_wb64(pb, delay);
2401 avio_wb32(pb, delay);
2404 avio_wb32(pb, 0x00010000);
2406 /* Avoid accidentally ending up with start_ct = -1 which has got a
2407 * special meaning. Normally start_ct should end up positive or zero
2408 * here, but use FFMIN in case dts is a a small positive integer
2409 * rounded to 0 when represented in MOV_TIMESCALE units. */
2410 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2411 start_ct = -FFMIN(start_dts, 0);
2412 /* Note, this delay is calculated from the pts of the first sample,
2413 * ensuring that we don't reduce the duration for cases with
2418 /* For fragmented files, we don't know the full length yet. Setting
2419 * duration to 0 allows us to only specify the offset, including
2420 * the rest of the content (from all future fragments) without specifying
2421 * an explicit duration. */
2422 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2427 avio_wb64(pb, duration);
2428 avio_wb64(pb, start_ct);
2430 avio_wb32(pb, duration);
2431 avio_wb32(pb, start_ct);
2433 avio_wb32(pb, 0x00010000);
2437 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2439 avio_wb32(pb, 20); // size
2440 ffio_wfourcc(pb, "tref");
2441 avio_wb32(pb, 12); // size (subatom)
2442 avio_wl32(pb, track->tref_tag);
2443 avio_wb32(pb, track->tref_id);
2447 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2448 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2450 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2451 ffio_wfourcc(pb, "uuid");
2452 ffio_wfourcc(pb, "USMT");
2453 avio_wb32(pb, 0x21d24fce);
2454 avio_wb32(pb, 0xbb88695c);
2455 avio_wb32(pb, 0xfac9c740);
2456 avio_wb32(pb, 0x1c); // another size here!
2457 ffio_wfourcc(pb, "MTDT");
2458 avio_wb32(pb, 0x00010012);
2459 avio_wb32(pb, 0x0a);
2460 avio_wb32(pb, 0x55c40000);
2466 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2468 AVFormatContext *ctx = track->rtp_ctx;
2469 char buf[1000] = "";
2472 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2473 NULL, NULL, 0, 0, ctx);
2474 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2477 avio_wb32(pb, len + 24);
2478 ffio_wfourcc(pb, "udta");
2479 avio_wb32(pb, len + 16);
2480 ffio_wfourcc(pb, "hnti");
2481 avio_wb32(pb, len + 8);
2482 ffio_wfourcc(pb, "sdp ");
2483 avio_write(pb, buf, len);
2487 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2488 const char *tag, const char *str)
2490 int64_t pos = avio_tell(pb);
2491 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2492 if (!t || !utf8len(t->value))
2495 avio_wb32(pb, 0); /* size */
2496 ffio_wfourcc(pb, tag); /* type */
2497 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2498 return update_size(pb, pos);
2501 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2504 AVIOContext *pb_buf;
2508 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2511 ret = avio_open_dyn_buf(&pb_buf);
2515 if (mov->mode & MODE_MP4)
2516 mov_write_track_metadata(pb_buf, st, "name", "title");
2518 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2519 avio_wb32(pb, size + 8);
2520 ffio_wfourcc(pb, "udta");
2521 avio_write(pb, buf, size);
2528 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2529 MOVTrack *track, AVStream *st)
2531 int64_t pos = avio_tell(pb);
2532 int entry_backup = track->entry;
2533 int chunk_backup = track->chunkCount;
2536 /* If we want to have an empty moov, but some samples already have been
2537 * buffered (delay_moov), pretend that no samples have been written yet. */
2538 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2539 track->chunkCount = track->entry = 0;
2541 avio_wb32(pb, 0); /* size */
2542 ffio_wfourcc(pb, "trak");
2543 mov_write_tkhd_tag(pb, mov, track, st);
2545 av_assert2(mov->use_editlist >= 0);
2547 if (track->start_dts != AV_NOPTS_VALUE) {
2548 if (mov->use_editlist)
2549 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2550 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2551 av_log(mov->fc, AV_LOG_WARNING,
2552 "Not writing any edit list even though one would have been required\n");
2555 if (track->tref_tag)
2556 mov_write_tref_tag(pb, track);
2558 if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2560 if (track->mode == MODE_PSP)
2561 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2562 if (track->tag == MKTAG('r','t','p',' '))
2563 mov_write_udta_sdp(pb, track);
2564 if (track->mode == MODE_MOV) {
2565 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2566 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2567 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2568 mov_write_tapt_tag(pb, track);
2571 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2572 mov_write_tapt_tag(pb, track);
2575 mov_write_track_udta_tag(pb, mov, st);
2576 track->entry = entry_backup;
2577 track->chunkCount = chunk_backup;
2578 return update_size(pb, pos);
2581 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2583 int i, has_audio = 0, has_video = 0;
2584 int64_t pos = avio_tell(pb);
2585 int audio_profile = mov->iods_audio_profile;
2586 int video_profile = mov->iods_video_profile;
2587 for (i = 0; i < mov->nb_streams; i++) {
2588 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2589 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2590 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2593 if (audio_profile < 0)
2594 audio_profile = 0xFF - has_audio;
2595 if (video_profile < 0)
2596 video_profile = 0xFF - has_video;
2597 avio_wb32(pb, 0x0); /* size */
2598 ffio_wfourcc(pb, "iods");
2599 avio_wb32(pb, 0); /* version & flags */
2600 put_descr(pb, 0x10, 7);
2601 avio_wb16(pb, 0x004f);
2604 avio_w8(pb, audio_profile);
2605 avio_w8(pb, video_profile);
2607 return update_size(pb, pos);
2610 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2612 avio_wb32(pb, 0x20); /* size */
2613 ffio_wfourcc(pb, "trex");
2614 avio_wb32(pb, 0); /* version & flags */
2615 avio_wb32(pb, track->track_id); /* track ID */
2616 avio_wb32(pb, 1); /* default sample description index */
2617 avio_wb32(pb, 0); /* default sample duration */
2618 avio_wb32(pb, 0); /* default sample size */
2619 avio_wb32(pb, 0); /* default sample flags */
2623 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2625 int64_t pos = avio_tell(pb);
2627 avio_wb32(pb, 0x0); /* size */
2628 ffio_wfourcc(pb, "mvex");
2629 for (i = 0; i < mov->nb_streams; i++)
2630 mov_write_trex_tag(pb, &mov->tracks[i]);
2631 return update_size(pb, pos);
2634 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2636 int max_track_id = 1, i;
2637 int64_t max_track_len = 0;
2640 for (i = 0; i < mov->nb_streams; i++) {
2641 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2642 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2644 mov->tracks[i].timescale,
2646 if (max_track_len < max_track_len_temp)
2647 max_track_len = max_track_len_temp;
2648 if (max_track_id < mov->tracks[i].track_id)
2649 max_track_id = mov->tracks[i].track_id;
2652 /* If using delay_moov, make sure the output is the same as if no
2653 * samples had been written yet. */
2654 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2659 version = max_track_len < UINT32_MAX ? 0 : 1;
2660 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2662 ffio_wfourcc(pb, "mvhd");
2663 avio_w8(pb, version);
2664 avio_wb24(pb, 0); /* flags */
2666 avio_wb64(pb, mov->time);
2667 avio_wb64(pb, mov->time);
2669 avio_wb32(pb, mov->time); /* creation time */
2670 avio_wb32(pb, mov->time); /* modification time */
2672 avio_wb32(pb, MOV_TIMESCALE);
2673 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2675 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2676 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2677 avio_wb16(pb, 0); /* reserved */
2678 avio_wb32(pb, 0); /* reserved */
2679 avio_wb32(pb, 0); /* reserved */
2681 /* Matrix structure */
2682 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2684 avio_wb32(pb, 0); /* reserved (preview time) */
2685 avio_wb32(pb, 0); /* reserved (preview duration) */
2686 avio_wb32(pb, 0); /* reserved (poster time) */
2687 avio_wb32(pb, 0); /* reserved (selection time) */
2688 avio_wb32(pb, 0); /* reserved (selection duration) */
2689 avio_wb32(pb, 0); /* reserved (current time) */
2690 avio_wb32(pb, max_track_id + 1); /* Next track id */
2694 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2697 avio_wb32(pb, 33); /* size */
2698 ffio_wfourcc(pb, "hdlr");
2701 ffio_wfourcc(pb, "mdir");
2702 ffio_wfourcc(pb, "appl");
2709 /* helper function to write a data tag with the specified string as data */
2710 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2713 int size = 16 + strlen(data);
2714 avio_wb32(pb, size); /* size */
2715 ffio_wfourcc(pb, "data");
2718 avio_write(pb, data, strlen(data));
2722 lang = ff_mov_iso639_to_lang("und", 1);
2723 avio_wb16(pb, strlen(data)); /* string length */
2724 avio_wb16(pb, lang);
2725 avio_write(pb, data, strlen(data));
2726 return strlen(data) + 4;
2730 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2731 const char *value, int lang, int long_style)
2734 if (value && value[0]) {
2735 int64_t pos = avio_tell(pb);
2736 avio_wb32(pb, 0); /* size */
2737 ffio_wfourcc(pb, name);
2738 mov_write_string_data_tag(pb, value, lang, long_style);
2739 size = update_size(pb, pos);
2744 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2745 const char *name, const char *tag,
2748 int l, lang = 0, len, len2;
2749 AVDictionaryEntry *t, *t2 = NULL;
2752 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2755 len = strlen(t->key);
2756 snprintf(tag2, sizeof(tag2), "%s-", tag);
2757 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2758 len2 = strlen(t2->key);
2759 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2760 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2765 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2768 /* iTunes bpm number */
2769 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2771 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2772 int size = 0, tmpo = t ? atoi(t->value) : 0;
2775 avio_wb32(pb, size);
2776 ffio_wfourcc(pb, "tmpo");
2777 avio_wb32(pb, size-8); /* size */
2778 ffio_wfourcc(pb, "data");
2779 avio_wb32(pb, 0x15); //type specifier
2781 avio_wb16(pb, tmpo); // data
2786 /* iTunes track or disc number */
2787 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2788 AVFormatContext *s, int disc)
2790 AVDictionaryEntry *t = av_dict_get(s->metadata,
2791 disc ? "disc" : "track",
2793 int size = 0, track = t ? atoi(t->value) : 0;
2796 char *slash = strchr(t->value, '/');
2798 tracks = atoi(slash + 1);
2799 avio_wb32(pb, 32); /* size */
2800 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2801 avio_wb32(pb, 24); /* size */
2802 ffio_wfourcc(pb, "data");
2803 avio_wb32(pb, 0); // 8 bytes empty
2805 avio_wb16(pb, 0); // empty
2806 avio_wb16(pb, track); // track / disc number
2807 avio_wb16(pb, tracks); // total track / disc number
2808 avio_wb16(pb, 0); // empty
2814 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2815 const char *name, const char *tag,
2818 AVDictionaryEntry *t = NULL;
2820 int size = 24 + len;
2822 if (len != 1 && len != 4)
2825 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2827 num = atoi(t->value);
2829 avio_wb32(pb, size);
2830 ffio_wfourcc(pb, name);
2831 avio_wb32(pb, size - 8);
2832 ffio_wfourcc(pb, "data");
2833 avio_wb32(pb, 0x15);
2835 if (len==4) avio_wb32(pb, num);
2836 else avio_w8 (pb, num);
2841 /* iTunes meta data list */
2842 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2845 int64_t pos = avio_tell(pb);
2846 avio_wb32(pb, 0); /* size */
2847 ffio_wfourcc(pb, "ilst");
2848 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2849 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2850 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2851 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2852 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2853 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2855 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2856 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2857 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2858 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2859 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2860 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2861 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2862 mov_write_string_metadata(s, pb, "desc", "description",1);
2863 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2864 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2865 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2866 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2867 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2868 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2869 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2870 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2871 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2872 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2873 mov_write_trkn_tag(pb, mov, s, 0); // track number
2874 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2875 mov_write_tmpo_tag(pb, s);
2876 return update_size(pb, pos);
2879 /* iTunes meta data tag */
2880 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2884 int64_t pos = avio_tell(pb);
2885 avio_wb32(pb, 0); /* size */
2886 ffio_wfourcc(pb, "meta");
2888 mov_write_itunes_hdlr_tag(pb, mov, s);
2889 mov_write_ilst_tag(pb, mov, s);
2890 size = update_size(pb, pos);
2894 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2895 const char *name, const char *key)
2898 AVDictionaryEntry *t;
2900 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2903 len = strlen(t->value);
2906 avio_wb32(pb, size);
2907 ffio_wfourcc(pb, name);
2908 avio_write(pb, t->value, len);
2914 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2918 GET_UTF8(val, *b++, return -1;)
2921 avio_wb16(pb, 0x00);
2925 static uint16_t language_code(const char *str)
2927 return (((str[0] - 0x60) & 0x1F) << 10) +
2928 (((str[1] - 0x60) & 0x1F) << 5) +
2929 (( str[2] - 0x60) & 0x1F);
2932 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2933 const char *tag, const char *str)
2935 int64_t pos = avio_tell(pb);
2936 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2937 if (!t || !utf8len(t->value))
2939 avio_wb32(pb, 0); /* size */
2940 ffio_wfourcc(pb, tag); /* type */
2941 avio_wb32(pb, 0); /* version + flags */
2942 if (!strcmp(tag, "yrrc"))
2943 avio_wb16(pb, atoi(t->value));
2945 avio_wb16(pb, language_code("eng")); /* language */
2946 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2947 if (!strcmp(tag, "albm") &&
2948 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2949 avio_w8(pb, atoi(t->value));
2951 return update_size(pb, pos);
2954 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2956 int64_t pos = avio_tell(pb);
2957 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2959 avio_wb32(pb, 0); // size
2960 ffio_wfourcc(pb, "chpl");
2961 avio_wb32(pb, 0x01000000); // version + flags
2962 avio_wb32(pb, 0); // unknown
2963 avio_w8(pb, nb_chapters);
2965 for (i = 0; i < nb_chapters; i++) {
2966 AVChapter *c = s->chapters[i];
2967 AVDictionaryEntry *t;
2968 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2970 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2971 int len = FFMIN(strlen(t->value), 255);
2973 avio_write(pb, t->value, len);
2977 return update_size(pb, pos);
2980 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2983 AVIOContext *pb_buf;
2987 ret = avio_open_dyn_buf(&pb_buf);
2991 if (mov->mode & MODE_3GP) {
2992 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2993 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2994 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2995 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2996 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2997 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2998 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2999 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3000 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3001 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3002 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3003 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3004 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3005 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3006 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3007 // currently ignored by mov.c
3008 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3009 // add support for libquicktime, this atom is also actually read by mov.c
3010 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3011 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3012 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3013 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3015 /* iTunes meta data */
3016 mov_write_meta_tag(pb_buf, mov, s);
3019 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3020 mov_write_chpl_tag(pb_buf, s);
3022 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3023 avio_wb32(pb, size + 8);
3024 ffio_wfourcc(pb, "udta");
3025 avio_write(pb, buf, size);
3032 static void mov_write_psp_udta_tag(AVIOContext *pb,
3033 const char *str, const char *lang, int type)
3035 int len = utf8len(str) + 1;
3038 avio_wb16(pb, len * 2 + 10); /* size */
3039 avio_wb32(pb, type); /* type */
3040 avio_wb16(pb, language_code(lang)); /* language */
3041 avio_wb16(pb, 0x01); /* ? */
3042 ascii_to_wc(pb, str);
3045 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3047 MOVMuxContext *mov = s->priv_data;
3048 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3052 pos = avio_tell(pb);
3053 avio_wb32(pb, 0); /* size placeholder*/
3054 ffio_wfourcc(pb, "uuid");
3055 ffio_wfourcc(pb, "USMT");
3056 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3057 avio_wb32(pb, 0xbb88695c);
3058 avio_wb32(pb, 0xfac9c740);
3060 pos2 = avio_tell(pb);
3061 avio_wb32(pb, 0); /* size placeholder*/
3062 ffio_wfourcc(pb, "MTDT");
3066 avio_wb16(pb, 0x0C); /* size */
3067 avio_wb32(pb, 0x0B); /* type */
3068 avio_wb16(pb, language_code("und")); /* language */
3069 avio_wb16(pb, 0x0); /* ? */
3070 avio_wb16(pb, 0x021C); /* data */
3073 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3074 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3075 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3077 update_size(pb, pos2);
3078 return update_size(pb, pos);
3084 static void build_chunks(MOVTrack *trk)
3087 MOVIentry *chunk = &trk->cluster[0];
3088 uint64_t chunkSize = chunk->size;
3089 chunk->chunkNum = 1;
3090 if (trk->chunkCount)
3092 trk->chunkCount = 1;
3093 for (i = 1; i<trk->entry; i++){
3094 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3095 chunkSize + trk->cluster[i].size < (1<<20)){
3096 chunkSize += trk->cluster[i].size;
3097 chunk->samples_in_chunk += trk->cluster[i].entries;
3099 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3100 chunk=&trk->cluster[i];
3101 chunkSize = chunk->size;
3107 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3111 int64_t pos = avio_tell(pb);
3112 avio_wb32(pb, 0); /* size placeholder*/
3113 ffio_wfourcc(pb, "moov");
3115 for (i = 0; i < mov->nb_streams; i++) {
3116 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3119 mov->tracks[i].time = mov->time;
3120 mov->tracks[i].track_id = i + 1;
3122 if (mov->tracks[i].entry)
3123 build_chunks(&mov->tracks[i]);
3126 if (mov->chapter_track)
3127 for (i = 0; i < s->nb_streams; i++) {
3128 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3129 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3131 for (i = 0; i < mov->nb_streams; i++) {
3132 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3133 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3134 mov->tracks[i].tref_id =
3135 mov->tracks[mov->tracks[i].src_track].track_id;
3138 for (i = 0; i < mov->nb_streams; i++) {
3139 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3140 int src_trk = mov->tracks[i].src_track;
3141 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3142 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3143 //src_trk may have a different timescale than the tmcd track
3144 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3145 mov->tracks[i].timescale,
3146 mov->tracks[src_trk].timescale);
3150 mov_write_mvhd_tag(pb, mov);
3151 if (mov->mode != MODE_MOV && !mov->iods_skip)
3152 mov_write_iods_tag(pb, mov);
3153 for (i = 0; i < mov->nb_streams; i++) {
3154 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3155 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3160 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3161 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3163 if (mov->mode == MODE_PSP)
3164 mov_write_uuidusmt_tag(pb, s);
3166 mov_write_udta_tag(pb, mov, s);
3168 return update_size(pb, pos);
3171 static void param_write_int(AVIOContext *pb, const char *name, int value)
3173 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3176 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3178 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3181 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3184 len = FFMIN(sizeof(buf) / 2 - 1, len);
3185 ff_data_to_hex(buf, value, len, 0);
3186 buf[2 * len] = '\0';
3187 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3190 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3192 int64_t pos = avio_tell(pb);
3194 static const uint8_t uuid[] = {
3195 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3196 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3200 ffio_wfourcc(pb, "uuid");
3201 avio_write(pb, uuid, sizeof(uuid));
3204 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3205 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3206 avio_printf(pb, "<head>\n");
3208 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3210 avio_printf(pb, "</head>\n");
3211 avio_printf(pb, "<body>\n");
3212 avio_printf(pb, "<switch>\n");
3213 for (i = 0; i < mov->nb_streams; i++) {
3214 MOVTrack *track = &mov->tracks[i];
3216 /* track->track_id is initialized in write_moov, and thus isn't known
3218 int track_id = i + 1;
3220 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3222 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3227 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3228 track->enc->bit_rate);
3229 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3230 param_write_int(pb, "trackID", track_id);
3231 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3232 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3234 int size = track->enc->extradata_size;
3235 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3237 param_write_hex(pb, "CodecPrivateData",
3238 ptr ? ptr : track->enc->extradata,
3242 param_write_string(pb, "FourCC", "H264");
3243 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3244 param_write_string(pb, "FourCC", "WVC1");
3245 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3246 track->enc->extradata_size);
3248 param_write_int(pb, "MaxWidth", track->enc->width);
3249 param_write_int(pb, "MaxHeight", track->enc->height);
3250 param_write_int(pb, "DisplayWidth", track->enc->width);
3251 param_write_int(pb, "DisplayHeight", track->enc->height);
3253 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3254 param_write_string(pb, "FourCC", "AACL");
3255 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3256 param_write_string(pb, "FourCC", "WMAP");
3258 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3259 track->enc->extradata_size);
3260 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3261 track->enc->codec_id));
3262 param_write_int(pb, "Channels", track->enc->channels);
3263 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3264 param_write_int(pb, "BitsPerSample", 16);
3265 param_write_int(pb, "PacketSize", track->enc->block_align ?
3266 track->enc->block_align : 4);
3268 avio_printf(pb, "</%s>\n", type);
3270 avio_printf(pb, "</switch>\n");
3271 avio_printf(pb, "</body>\n");
3272 avio_printf(pb, "</smil>\n");
3274 return update_size(pb, pos);
3277 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3280 ffio_wfourcc(pb, "mfhd");
3282 avio_wb32(pb, mov->fragments);
3286 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3287 MOVTrack *track, int64_t moof_offset)
3289 int64_t pos = avio_tell(pb);
3290 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3291 MOV_TFHD_BASE_DATA_OFFSET;
3292 if (!track->entry) {
3293 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3295 flags |= MOV_TFHD_DEFAULT_FLAGS;
3297 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3298 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3299 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3300 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3301 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3304 /* Don't set a default sample size, the silverlight player refuses
3305 * to play files with that set. Don't set a default sample duration,
3306 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3307 * file format says it MUST NOT be set. */
3308 if (track->mode == MODE_ISM)
3309 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3310 MOV_TFHD_BASE_DATA_OFFSET);
3312 avio_wb32(pb, 0); /* size placeholder */
3313 ffio_wfourcc(pb, "tfhd");
3314 avio_w8(pb, 0); /* version */
3315 avio_wb24(pb, flags);
3317 avio_wb32(pb, track->track_id); /* track-id */
3318 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3319 avio_wb64(pb, moof_offset);
3320 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3321 track->default_duration = get_cluster_duration(track, 0);
3322 avio_wb32(pb, track->default_duration);
3324 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3325 track->default_size = track->entry ? track->cluster[0].size : 1;
3326 avio_wb32(pb, track->default_size);
3328 track->default_size = -1;
3330 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3331 track->default_sample_flags =
3332 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3333 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3334 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3335 avio_wb32(pb, track->default_sample_flags);
3338 return update_size(pb, pos);
3341 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3343 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3344 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3347 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3348 MOVTrack *track, int moof_size)
3350 int64_t pos = avio_tell(pb);
3351 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3354 for (i = 0; i < track->entry; i++) {
3355 if (get_cluster_duration(track, i) != track->default_duration)
3356 flags |= MOV_TRUN_SAMPLE_DURATION;
3357 if (track->cluster[i].size != track->default_size)
3358 flags |= MOV_TRUN_SAMPLE_SIZE;
3359 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3360 flags |= MOV_TRUN_SAMPLE_FLAGS;
3362 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3363 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3364 if (track->flags & MOV_TRACK_CTTS)
3365 flags |= MOV_TRUN_SAMPLE_CTS;
3367 avio_wb32(pb, 0); /* size placeholder */
3368 ffio_wfourcc(pb, "trun");
3369 avio_w8(pb, 0); /* version */
3370 avio_wb24(pb, flags);
3372 avio_wb32(pb, track->entry); /* sample count */
3373 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3374 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3376 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3378 avio_wb32(pb, moof_size + 8 + track->data_offset +
3379 track->cluster[0].pos); /* data offset */
3380 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3381 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3383 for (i = 0; i < track->entry; i++) {
3384 if (flags & MOV_TRUN_SAMPLE_DURATION)
3385 avio_wb32(pb, get_cluster_duration(track, i));
3386 if (flags & MOV_TRUN_SAMPLE_SIZE)
3387 avio_wb32(pb, track->cluster[i].size);
3388 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3389 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3390 if (flags & MOV_TRUN_SAMPLE_CTS)
3391 avio_wb32(pb, track->cluster[i].cts);
3394 mov->first_trun = 0;
3395 return update_size(pb, pos);
3398 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3400 int64_t pos = avio_tell(pb);
3401 static const uint8_t uuid[] = {
3402 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3403 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3406 avio_wb32(pb, 0); /* size placeholder */
3407 ffio_wfourcc(pb, "uuid");
3408 avio_write(pb, uuid, sizeof(uuid));
3411 avio_wb64(pb, track->frag_start);
3412 avio_wb64(pb, track->start_dts + track->track_duration -
3413 track->cluster[0].dts);
3415 return update_size(pb, pos);
3418 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3419 MOVTrack *track, int entry)
3421 int n = track->nb_frag_info - 1 - entry, i;
3422 int size = 8 + 16 + 4 + 1 + 16*n;
3423 static const uint8_t uuid[] = {
3424 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3425 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3431 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3432 avio_wb32(pb, size);
3433 ffio_wfourcc(pb, "uuid");
3434 avio_write(pb, uuid, sizeof(uuid));
3438 for (i = 0; i < n; i++) {
3439 int index = entry + 1 + i;
3440 avio_wb64(pb, track->frag_info[index].time);
3441 avio_wb64(pb, track->frag_info[index].duration);
3443 if (n < mov->ism_lookahead) {
3444 int free_size = 16 * (mov->ism_lookahead - n);
3445 avio_wb32(pb, free_size);
3446 ffio_wfourcc(pb, "free");
3447 ffio_fill(pb, 0, free_size - 8);
3453 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3456 int64_t pos = avio_tell(pb);
3458 for (i = 0; i < mov->ism_lookahead; i++) {
3459 /* Update the tfrf tag for the last ism_lookahead fragments,
3460 * nb_frag_info - 1 is the next fragment to be written. */
3461 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3463 avio_seek(pb, pos, SEEK_SET);
3467 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3471 for (i = 0; i < mov->nb_streams; i++) {
3472 MOVTrack *track = &mov->tracks[i];
3473 MOVFragmentInfo *info;
3474 if ((tracks >= 0 && i != tracks) || !track->entry)
3476 track->nb_frag_info++;
3477 if (track->nb_frag_info >= track->frag_info_capacity) {
3478 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3479 if (av_reallocp_array(&track->frag_info,
3481 sizeof(*track->frag_info)))
3482 return AVERROR(ENOMEM);
3483 track->frag_info_capacity = new_capacity;
3485 info = &track->frag_info[track->nb_frag_info - 1];
3486 info->offset = avio_tell(pb);
3488 // Try to recreate the original pts for the first packet
3489 // from the fields we have stored
3490 info->time = track->start_dts + track->frag_start +
3491 track->cluster[0].cts;
3492 // If the pts is less than zero, we will have trimmed
3493 // away parts of the media track using an edit list,
3494 // and the corresponding start presentation time is zero.
3497 info->duration = track->start_dts + track->track_duration -
3498 track->cluster[0].dts;
3499 info->tfrf_offset = 0;
3500 mov_write_tfrf_tags(pb, mov, track);
3505 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3507 int64_t pos = avio_tell(pb);
3509 avio_wb32(pb, 0); /* size */
3510 ffio_wfourcc(pb, "tfdt");
3511 avio_w8(pb, 1); /* version */
3513 avio_wb64(pb, track->frag_start);
3514 return update_size(pb, pos);
3517 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3518 MOVTrack *track, int64_t moof_offset,
3521 int64_t pos = avio_tell(pb);
3522 avio_wb32(pb, 0); /* size placeholder */
3523 ffio_wfourcc(pb, "traf");
3525 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3526 if (mov->mode != MODE_ISM)
3527 mov_write_tfdt_tag(pb, track);
3528 mov_write_trun_tag(pb, mov, track, moof_size);
3529 if (mov->mode == MODE_ISM) {
3530 mov_write_tfxd_tag(pb, track);
3532 if (mov->ism_lookahead) {
3533 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3535 if (track->nb_frag_info > 0) {
3536 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3537 if (!info->tfrf_offset)
3538 info->tfrf_offset = avio_tell(pb);
3540 avio_wb32(pb, 8 + size);
3541 ffio_wfourcc(pb, "free");
3542 for (i = 0; i < size; i++)
3547 return update_size(pb, pos);
3550 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3551 int tracks, int moof_size)
3553 int64_t pos = avio_tell(pb);
3556 avio_wb32(pb, 0); /* size placeholder */
3557 ffio_wfourcc(pb, "moof");
3558 mov->first_trun = 1;
3560 mov_write_mfhd_tag(pb, mov);
3561 for (i = 0; i < mov->nb_streams; i++) {
3562 MOVTrack *track = &mov->tracks[i];
3563 if (tracks >= 0 && i != tracks)
3567 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3570 return update_size(pb, pos);
3573 static int mov_write_sidx_tag(AVIOContext *pb,
3574 MOVTrack *track, int ref_size, int total_sidx_size)
3576 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3577 int64_t presentation_time, duration, offset;
3578 int starts_with_SAP, i, entries;
3582 presentation_time = track->start_dts + track->frag_start +
3583 track->cluster[0].cts;
3584 duration = track->start_dts + track->track_duration -
3585 track->cluster[0].dts;
3586 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3588 entries = track->nb_frag_info;
3589 presentation_time = track->frag_info[0].time;
3592 // pts<0 should be cut away using edts
3593 if (presentation_time < 0)
3594 presentation_time = 0;
3596 avio_wb32(pb, 0); /* size */
3597 ffio_wfourcc(pb, "sidx");
3598 avio_w8(pb, 1); /* version */
3600 avio_wb32(pb, track->track_id); /* reference_ID */
3601 avio_wb32(pb, track->timescale); /* timescale */
3602 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3603 offset_pos = avio_tell(pb);
3604 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3605 avio_wb16(pb, 0); /* reserved */
3607 avio_wb16(pb, entries); /* reference_count */
3608 for (i = 0; i < entries; i++) {
3609 if (!track->entry) {
3610 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3611 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3613 duration = track->frag_info[i].duration;
3614 ref_size = track->frag_info[i].size;
3615 starts_with_SAP = 1;
3617 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3618 avio_wb32(pb, duration); /* subsegment_duration */
3619 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3622 end_pos = avio_tell(pb);
3623 offset = pos + total_sidx_size - end_pos;
3624 avio_seek(pb, offset_pos, SEEK_SET);
3625 avio_wb64(pb, offset);
3626 avio_seek(pb, end_pos, SEEK_SET);
3627 return update_size(pb, pos);
3630 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3631 int tracks, int ref_size)
3634 AVIOContext *avio_buf;
3636 for (round = 0; round < 2; round++) {
3637 // First run one round to calculate the total size of all
3639 // This would be much simpler if we'd only write one sidx
3640 // atom, for the first track in the moof.
3642 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3647 for (i = 0; i < mov->nb_streams; i++) {
3648 MOVTrack *track = &mov->tracks[i];
3649 if (tracks >= 0 && i != tracks)
3651 // When writing a sidx for the full file, entry is 0, but
3652 // we want to include all tracks. ref_size is 0 in this case,
3653 // since we read it from frag_info instead.
3654 if (!track->entry && ref_size > 0)
3656 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3660 total_size = ffio_close_null_buf(avio_buf);
3665 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3668 AVIOContext *avio_buf;
3671 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3673 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3674 moof_size = ffio_close_null_buf(avio_buf);
3676 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
3677 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3679 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3682 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3685 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3687 int64_t pos = avio_tell(pb);
3690 avio_wb32(pb, 0); /* size placeholder */
3691 ffio_wfourcc(pb, "tfra");
3692 avio_w8(pb, 1); /* version */
3695 avio_wb32(pb, track->track_id);
3696 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3697 avio_wb32(pb, track->nb_frag_info);
3698 for (i = 0; i < track->nb_frag_info; i++) {
3699 avio_wb64(pb, track->frag_info[i].time);
3700 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3701 avio_w8(pb, 1); /* traf number */
3702 avio_w8(pb, 1); /* trun number */
3703 avio_w8(pb, 1); /* sample number */
3706 return update_size(pb, pos);
3709 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3711 int64_t pos = avio_tell(pb);
3714 avio_wb32(pb, 0); /* size placeholder */
3715 ffio_wfourcc(pb, "mfra");
3716 /* An empty mfra atom is enough to indicate to the publishing point that
3717 * the stream has ended. */
3718 if (mov->flags & FF_MOV_FLAG_ISML)
3719 return update_size(pb, pos);
3721 for (i = 0; i < mov->nb_streams; i++) {
3722 MOVTrack *track = &mov->tracks[i];
3723 if (track->nb_frag_info)
3724 mov_write_tfra_tag(pb, track);
3728 ffio_wfourcc(pb, "mfro");
3729 avio_wb32(pb, 0); /* version + flags */
3730 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3732 return update_size(pb, pos);
3735 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3737 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3738 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3740 mov->mdat_pos = avio_tell(pb);
3741 avio_wb32(pb, 0); /* size placeholder*/
3742 ffio_wfourcc(pb, "mdat");
3746 /* TODO: This needs to be more general */
3747 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3749 MOVMuxContext *mov = s->priv_data;
3750 int64_t pos = avio_tell(pb);
3751 int has_h264 = 0, has_video = 0;
3755 for (i = 0; i < s->nb_streams; i++) {
3756 AVStream *st = s->streams[i];
3757 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3759 if (st->codec->codec_id == AV_CODEC_ID_H264)
3763 avio_wb32(pb, 0); /* size */
3764 ffio_wfourcc(pb, "ftyp");
3766 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3767 ffio_wfourcc(pb, mov->major_brand);
3768 else if (mov->mode == MODE_3GP) {
3769 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3770 minor = has_h264 ? 0x100 : 0x200;
3771 } else if (mov->mode & MODE_3G2) {
3772 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3773 minor = has_h264 ? 0x20000 : 0x10000;
3774 } else if (mov->mode == MODE_PSP)
3775 ffio_wfourcc(pb, "MSNV");
3776 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3777 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3778 else if (mov->mode == MODE_MP4)
3779 ffio_wfourcc(pb, "isom");
3780 else if (mov->mode == MODE_IPOD)
3781 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3782 else if (mov->mode == MODE_ISM)
3783 ffio_wfourcc(pb, "isml");
3784 else if (mov->mode == MODE_F4V)
3785 ffio_wfourcc(pb, "f4v ");
3787 ffio_wfourcc(pb, "qt ");
3789 avio_wb32(pb, minor);
3791 if (mov->mode == MODE_MOV)
3792 ffio_wfourcc(pb, "qt ");
3793 else if (mov->mode == MODE_ISM) {
3794 ffio_wfourcc(pb, "piff");
3795 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3796 ffio_wfourcc(pb, "isom");
3797 ffio_wfourcc(pb, "iso2");
3799 ffio_wfourcc(pb, "avc1");
3802 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3803 // brand. This is compatible with users that don't understand tfdt.
3804 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3805 ffio_wfourcc(pb, "iso6");
3807 if (mov->mode == MODE_3GP)
3808 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3809 else if (mov->mode & MODE_3G2)
3810 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3811 else if (mov->mode == MODE_PSP)
3812 ffio_wfourcc(pb, "MSNV");
3813 else if (mov->mode == MODE_MP4)
3814 ffio_wfourcc(pb, "mp41");
3816 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
3817 ffio_wfourcc(pb, "dash");
3819 return update_size(pb, pos);
3822 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3824 AVStream *video_st = s->streams[0];
3825 AVCodecContext *video_codec = s->streams[0]->codec;
3826 AVCodecContext *audio_codec = s->streams[1]->codec;
3827 int audio_rate = audio_codec->sample_rate;
3828 // TODO: should be avg_frame_rate
3829 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3830 int audio_kbitrate = audio_codec->bit_rate / 1000;
3831 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3833 avio_wb32(pb, 0x94); /* size */
3834 ffio_wfourcc(pb, "uuid");
3835 ffio_wfourcc(pb, "PROF");
3837 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3838 avio_wb32(pb, 0xbb88695c);
3839 avio_wb32(pb, 0xfac9c740);
3841 avio_wb32(pb, 0x0); /* ? */
3842 avio_wb32(pb, 0x3); /* 3 sections ? */
3844 avio_wb32(pb, 0x14); /* size */
3845 ffio_wfourcc(pb, "FPRF");
3846 avio_wb32(pb, 0x0); /* ? */
3847 avio_wb32(pb, 0x0); /* ? */
3848 avio_wb32(pb, 0x0); /* ? */
3850 avio_wb32(pb, 0x2c); /* size */
3851 ffio_wfourcc(pb, "APRF"); /* audio */
3853 avio_wb32(pb, 0x2); /* TrackID */
3854 ffio_wfourcc(pb, "mp4a");
3855 avio_wb32(pb, 0x20f);
3857 avio_wb32(pb, audio_kbitrate);
3858 avio_wb32(pb, audio_kbitrate);
3859 avio_wb32(pb, audio_rate);
3860 avio_wb32(pb, audio_codec->channels);
3862 avio_wb32(pb, 0x34); /* size */
3863 ffio_wfourcc(pb, "VPRF"); /* video */
3865 avio_wb32(pb, 0x1); /* TrackID */
3866 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3867 ffio_wfourcc(pb, "avc1");
3868 avio_wb16(pb, 0x014D);
3869 avio_wb16(pb, 0x0015);
3871 ffio_wfourcc(pb, "mp4v");
3872 avio_wb16(pb, 0x0000);
3873 avio_wb16(pb, 0x0103);
3876 avio_wb32(pb, video_kbitrate);
3877 avio_wb32(pb, video_kbitrate);
3878 avio_wb32(pb, frame_rate);
3879 avio_wb32(pb, frame_rate);
3880 avio_wb16(pb, video_codec->width);
3881 avio_wb16(pb, video_codec->height);
3882 avio_wb32(pb, 0x010001); /* ? */
3885 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3887 MOVMuxContext *mov = s->priv_data;
3890 mov_write_ftyp_tag(pb,s);
3891 if (mov->mode == MODE_PSP) {
3892 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3893 for (i = 0; i < s->nb_streams; i++) {
3894 AVStream *st = s->streams[i];
3895 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3897 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3903 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3904 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3905 return AVERROR(EINVAL);
3907 mov_write_uuidprof_tag(pb, s);
3912 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3915 int i, closed_gop = 0;
3917 for (i = 0; i < pkt->size - 4; i++) {
3918 c = (c << 8) + pkt->data[i];
3919 if (c == 0x1b8) { // gop
3920 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3921 } else if (c == 0x100) { // pic
3922 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3923 if (!temp_ref || closed_gop) // I picture is not reordered
3924 *flags = MOV_SYNC_SAMPLE;
3926 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3933 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3935 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3936 int seq = 0, entry = 0;
3937 int key = pkt->flags & AV_PKT_FLAG_KEY;
3938 start = find_next_marker(pkt->data, end);
3939 for (next = start; next < end; start = next) {
3940 next = find_next_marker(start + 4, end);
3941 switch (AV_RB32(start)) {
3942 case VC1_CODE_SEQHDR:
3945 case VC1_CODE_ENTRYPOINT:
3948 case VC1_CODE_SLICE:
3949 trk->vc1_info.slices = 1;
3953 if (!trk->entry && !fragment) {
3954 /* First packet in first fragment */
3955 trk->vc1_info.first_packet_seq = seq;
3956 trk->vc1_info.first_packet_entry = entry;
3957 } else if ((seq && !trk->vc1_info.packet_seq) ||
3958 (entry && !trk->vc1_info.packet_entry)) {
3960 for (i = 0; i < trk->entry; i++)
3961 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3962 trk->has_keyframes = 0;
3964 trk->vc1_info.packet_seq = 1;
3966 trk->vc1_info.packet_entry = 1;
3968 /* First fragment */
3969 if ((!seq || trk->vc1_info.first_packet_seq) &&
3970 (!entry || trk->vc1_info.first_packet_entry)) {
3971 /* First packet had the same headers as this one, readd the
3972 * sync sample flag. */
3973 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3974 trk->has_keyframes = 1;
3978 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3980 else if (trk->vc1_info.packet_seq)
3982 else if (trk->vc1_info.packet_entry)
3985 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3986 trk->has_keyframes++;
3990 static int mov_flush_fragment(AVFormatContext *s)
3992 MOVMuxContext *mov = s->priv_data;
3993 int i, first_track = -1;
3994 int64_t mdat_size = 0;
3997 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4000 if (mov->fragments == 0) {
4001 int64_t pos = avio_tell(s->pb);
4003 int buf_size, moov_size;
4005 for (i = 0; i < mov->nb_streams; i++)
4006 if (!mov->tracks[i].entry)
4008 /* Don't write the initial moov unless all tracks have data */
4009 if (i < mov->nb_streams)
4012 moov_size = get_moov_size(s);
4013 for (i = 0; i < mov->nb_streams; i++)
4014 mov->tracks[i].data_offset = pos + moov_size + 8;
4016 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4017 mov_write_identification(s->pb, s);
4018 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4021 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4022 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4023 mov->reserved_moov_pos = avio_tell(s->pb);
4029 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4030 mov->mdat_buf = NULL;
4031 avio_wb32(s->pb, buf_size + 8);
4032 ffio_wfourcc(s->pb, "mdat");
4033 avio_write(s->pb, buf, buf_size);
4038 for (i = 0; i < mov->nb_streams; i++) {
4039 if (mov->tracks[i].entry)
4040 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4041 mov->tracks[i].track_duration -
4042 mov->tracks[i].cluster[0].dts;
4043 mov->tracks[i].entry = 0;
4049 for (i = 0; i < mov->nb_streams; i++) {
4050 MOVTrack *track = &mov->tracks[i];
4051 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
4052 track->data_offset = 0;
4054 track->data_offset = mdat_size;
4055 if (!track->mdat_buf)
4057 mdat_size += avio_tell(track->mdat_buf);
4058 if (first_track < 0)
4065 for (i = 0; i < mov->nb_streams; i++) {
4066 MOVTrack *track = &mov->tracks[i];
4067 int buf_size, write_moof = 1, moof_tracks = -1;
4069 int64_t duration = 0;
4072 duration = track->start_dts + track->track_duration -
4073 track->cluster[0].dts;
4074 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4075 if (!track->mdat_buf)
4077 mdat_size = avio_tell(track->mdat_buf);
4080 write_moof = i == first_track;
4086 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4089 avio_wb32(s->pb, mdat_size + 8);
4090 ffio_wfourcc(s->pb, "mdat");
4094 track->frag_start += duration;
4096 if (!track->mdat_buf)
4098 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4099 track->mdat_buf = NULL;
4101 avio_write(s->pb, buf, buf_size);
4111 static int mov_auto_flush_fragment(AVFormatContext *s)
4113 MOVMuxContext *mov = s->priv_data;
4114 int ret = mov_flush_fragment(s);
4117 // If using delay_moov, the first flush only wrote the moov,
4118 // not the actual moof+mdat pair, thus flush once again.
4119 if (mov->fragments == 1 && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4120 ret = mov_flush_fragment(s);
4124 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4126 MOVMuxContext *mov = s->priv_data;
4127 AVIOContext *pb = s->pb;
4128 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4129 AVCodecContext *enc = trk->enc;
4130 unsigned int samples_in_chunk = 0;
4131 int size = pkt->size, ret = 0;
4132 uint8_t *reformatted_data = NULL;
4135 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4136 if (duration < 0 || duration > INT_MAX) {
4137 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4141 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4142 pkt->pts = AV_NOPTS_VALUE;
4144 if (pkt->duration < 0) {
4145 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4146 return AVERROR(EINVAL);
4149 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4151 if (mov->fragments > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4152 if (!trk->mdat_buf) {
4153 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4158 if (!mov->mdat_buf) {
4159 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4166 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4167 /* We must find out how many AMR blocks there are in one packet */
4168 static uint16_t packed_size[16] =
4169 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4172 while (len < size && samples_in_chunk < 100) {
4173 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4176 if (samples_in_chunk > 1) {
4177 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4180 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4181 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4182 samples_in_chunk = enc->frame_size;
4183 } else if (trk->sample_size)
4184 samples_in_chunk = size / trk->sample_size;
4186 samples_in_chunk = 1;
4188 /* copy extradata if it exists */
4189 if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4190 !TAG_IS_AVCI(trk->tag) &&
4191 (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4192 trk->vos_len = enc->extradata_size;
4193 trk->vos_data = av_malloc(trk->vos_len);
4194 if (!trk->vos_data) {
4195 ret = AVERROR(ENOMEM);
4198 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4201 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4202 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4203 if (!s->streams[pkt->stream_index]->nb_frames) {
4204 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4205 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4206 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4209 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4211 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4212 /* from x264 or from bytestream h264 */
4213 /* nal reformating needed */
4214 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4215 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4217 avio_write(pb, reformatted_data, size);
4219 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4221 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4222 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4223 /* extradata is Annex B, assume the bitstream is too and convert it */
4224 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4225 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4226 avio_write(pb, reformatted_data, size);
4228 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4230 #if CONFIG_AC3_PARSER
4231 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4232 size = handle_eac3(mov, pkt, trk);
4237 avio_write(pb, pkt->data, size);
4240 avio_write(pb, pkt->data, size);
4243 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4244 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4245 /* copy frame to create needed atoms */
4246 trk->vos_len = size;
4247 trk->vos_data = av_malloc(size);
4248 if (!trk->vos_data) {
4249 ret = AVERROR(ENOMEM);
4252 memcpy(trk->vos_data, pkt->data, size);
4255 if (trk->entry >= trk->cluster_capacity) {
4256 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4257 if (av_reallocp_array(&trk->cluster, new_capacity,
4258 sizeof(*trk->cluster))) {
4259 ret = AVERROR(ENOMEM);
4262 trk->cluster_capacity = new_capacity;
4265 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4266 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4267 trk->cluster[trk->entry].chunkNum = 0;
4268 trk->cluster[trk->entry].size = size;
4269 trk->cluster[trk->entry].entries = samples_in_chunk;
4270 trk->cluster[trk->entry].dts = pkt->dts;
4271 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4272 if (!trk->frag_discont) {
4273 /* First packet of a new fragment. We already wrote the duration
4274 * of the last packet of the previous fragment based on track_duration,
4275 * which might not exactly match our dts. Therefore adjust the dts
4276 * of this packet to be what the previous packets duration implies. */
4277 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4278 /* We also may have written the pts and the corresponding duration
4279 * in sidx tags; make sure the sidx pts and duration match up with
4280 * the next fragment. This means the cts of the first sample must
4281 * be the same in all fragments. */
4282 pkt->pts = pkt->dts + trk->start_cts;
4284 /* New fragment, but discontinuous from previous fragments.
4285 * Pretend the duration sum of the earlier fragments is
4286 * pkt->dts - trk->start_dts. */
4287 trk->frag_start = pkt->dts - trk->start_dts;
4288 trk->frag_discont = 0;
4292 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4293 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4294 /* Not using edit lists and shifting the first track to start from zero.
4295 * If the other streams start from a later timestamp, we won't be able
4296 * to signal the difference in starting time without an edit list.
4297 * Thus move the timestamp for this first sample to 0, increasing
4298 * its duration instead. */
4299 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4301 if (trk->start_dts == AV_NOPTS_VALUE) {
4302 trk->start_dts = pkt->dts;
4303 if (trk->frag_discont) {
4304 /* Pretend the whole stream started at dts=0, with earlier fragments
4305 * already written, with a duration summing up to pkt->dts. */
4306 trk->frag_start = pkt->dts;
4308 trk->frag_discont = 0;
4309 } else if (pkt->dts && mov->fragments >= 1)
4310 av_log(s, AV_LOG_WARNING,
4311 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4312 "already has been written. Set the delay_moov flag to handle "
4314 pkt->stream_index, pkt->dts);
4316 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4317 trk->last_sample_is_subtitle_end = 0;
4319 if (pkt->pts == AV_NOPTS_VALUE) {
4320 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4321 pkt->pts = pkt->dts;
4323 if (pkt->dts != pkt->pts)
4324 trk->flags |= MOV_TRACK_CTTS;
4325 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4326 trk->cluster[trk->entry].flags = 0;
4327 if (trk->start_cts == AV_NOPTS_VALUE)
4328 trk->start_cts = pkt->pts - pkt->dts;
4330 if (enc->codec_id == AV_CODEC_ID_VC1) {
4331 mov_parse_vc1_frame(pkt, trk, mov->fragments);
4332 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4333 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4334 trk->entry > 0) { // force sync sample for the first key frame
4335 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4336 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4337 trk->flags |= MOV_TRACK_STPS;
4339 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4341 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4342 trk->has_keyframes++;
4345 trk->sample_count += samples_in_chunk;
4346 mov->mdat_size += size;
4348 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4349 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4350 reformatted_data, size);
4355 av_free(reformatted_data);
4359 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4361 MOVMuxContext *mov = s->priv_data;
4362 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4363 AVCodecContext *enc = trk->enc;
4364 int64_t frag_duration = 0;
4365 int size = pkt->size;
4368 return 0; /* Discard 0 sized packets */
4370 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4372 for (i = 0; i < s->nb_streams; i++)
4373 mov->tracks[i].frag_discont = 1;
4374 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4377 if (trk->entry && pkt->stream_index < s->nb_streams)
4378 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4379 s->streams[pkt->stream_index]->time_base,
4381 if ((mov->max_fragment_duration &&
4382 frag_duration >= mov->max_fragment_duration) ||
4383 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4384 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4385 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4386 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4387 if (frag_duration >= mov->min_fragment_duration)
4388 mov_auto_flush_fragment(s);
4391 return ff_mov_write_packet(s, pkt);
4394 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4398 uint8_t data[2] = {0};
4401 av_init_packet(&end);
4402 end.size = sizeof(data);
4407 end.stream_index = stream_index;
4409 ret = mov_write_single_packet(s, &end);
4410 av_free_packet(&end);
4415 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4418 mov_flush_fragment(s);
4422 MOVMuxContext *mov = s->priv_data;
4424 if (!pkt->size) return 0; /* Discard 0 sized packets */
4427 * Subtitles require special handling.
4429 * 1) For full complaince, every track must have a sample at
4430 * dts == 0, which is rarely true for subtitles. So, as soon
4431 * as we see any packet with dts > 0, write an empty subtitle
4432 * at dts == 0 for any subtitle track with no samples in it.
4434 * 2) For each subtitle track, check if the current packet's
4435 * dts is past the duration of the last subtitle sample. If
4436 * so, we now need to write an end sample for that subtitle.
4438 * This must be done conditionally to allow for subtitles that
4439 * immediately replace each other, in which case an end sample
4440 * is not needed, and is, in fact, actively harmful.
4442 * 3) See mov_write_trailer for how the final end sample is
4445 for (i = 0; i < mov->nb_streams; i++) {
4446 MOVTrack *trk = &mov->tracks[i];
4449 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4450 trk->track_duration < pkt->dts &&
4451 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4452 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4453 if (ret < 0) return ret;
4454 trk->last_sample_is_subtitle_end = 1;
4458 return mov_write_single_packet(s, pkt);
4462 // QuickTime chapters involve an additional text track with the chapter names
4463 // as samples, and a tref pointing from the other tracks to the chapter one.
4464 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4468 MOVMuxContext *mov = s->priv_data;
4469 MOVTrack *track = &mov->tracks[tracknum];
4470 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4473 track->mode = mov->mode;
4474 track->tag = MKTAG('t','e','x','t');
4475 track->timescale = MOV_TIMESCALE;
4476 track->enc = avcodec_alloc_context3(NULL);
4478 return AVERROR(ENOMEM);
4479 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4481 // These properties are required to make QT recognize the chapter track
4482 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4483 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4484 return AVERROR(ENOMEM);
4485 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4487 if (avio_open_dyn_buf(&pb) >= 0) {
4491 /* Stub header (usually for Quicktime chapter track) */
4493 avio_wb32(pb, 0x01); // displayFlags
4494 avio_w8(pb, 0x00); // horizontal justification
4495 avio_w8(pb, 0x00); // vertical justification
4496 avio_w8(pb, 0x00); // bgColourRed
4497 avio_w8(pb, 0x00); // bgColourGreen
4498 avio_w8(pb, 0x00); // bgColourBlue
4499 avio_w8(pb, 0x00); // bgColourAlpha
4501 avio_wb16(pb, 0x00); // defTextBoxTop
4502 avio_wb16(pb, 0x00); // defTextBoxLeft
4503 avio_wb16(pb, 0x00); // defTextBoxBottom
4504 avio_wb16(pb, 0x00); // defTextBoxRight
4506 avio_wb16(pb, 0x00); // startChar
4507 avio_wb16(pb, 0x00); // endChar
4508 avio_wb16(pb, 0x01); // fontID
4509 avio_w8(pb, 0x00); // fontStyleFlags
4510 avio_w8(pb, 0x00); // fontSize
4511 avio_w8(pb, 0x00); // fgColourRed
4512 avio_w8(pb, 0x00); // fgColourGreen
4513 avio_w8(pb, 0x00); // fgColourBlue
4514 avio_w8(pb, 0x00); // fgColourAlpha
4516 avio_wb32(pb, 0x0D); // box size
4517 ffio_wfourcc(pb, "ftab"); // box atom name
4518 avio_wb16(pb, 0x01); // entry count
4520 avio_wb16(pb, 0x01); // font ID
4521 avio_w8(pb, 0x00); // font name length
4523 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4524 track->enc->extradata = buf;
4525 track->enc->extradata_size = size;
4532 for (i = 0; i < s->nb_chapters; i++) {
4533 AVChapter *c = s->chapters[i];
4534 AVDictionaryEntry *t;
4536 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4537 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4538 pkt.duration = end - pkt.dts;
4540 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4541 const char encd[12] = {
4542 0x00, 0x00, 0x00, 0x0C,
4544 0x00, 0x00, 0x01, 0x00 };
4545 len = strlen(t->value);
4546 pkt.size = len + 2 + 12;
4547 pkt.data = av_malloc(pkt.size);
4549 return AVERROR(ENOMEM);
4550 AV_WB16(pkt.data, len);
4551 memcpy(pkt.data + 2, t->value, len);
4552 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4553 ff_mov_write_packet(s, &pkt);
4554 av_freep(&pkt.data);
4561 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4564 MOVMuxContext *mov = s->priv_data;
4565 MOVTrack *track = &mov->tracks[index];
4566 AVStream *src_st = s->streams[src_index];
4568 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4569 AVRational rate = find_fps(s, src_st);
4571 /* compute the frame number */
4572 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4576 /* tmcd track based on video stream */
4577 track->mode = mov->mode;
4578 track->tag = MKTAG('t','m','c','d');
4579 track->src_track = src_index;
4580 track->timescale = mov->tracks[src_index].timescale;
4581 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4582 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4584 /* set st to src_st for metadata access*/
4587 /* encode context: tmcd data stream */
4588 track->enc = avcodec_alloc_context3(NULL);
4590 return AVERROR(ENOMEM);
4591 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4592 track->enc->codec_tag = track->tag;
4593 track->enc->time_base = av_inv_q(rate);
4595 /* the tmcd track just contains one packet with the frame number */
4596 pkt.data = av_malloc(pkt.size);
4598 return AVERROR(ENOMEM);
4599 AV_WB32(pkt.data, tc.start);
4600 ret = ff_mov_write_packet(s, &pkt);
4606 * st->disposition controls the "enabled" flag in the tkhd tag.
4607 * QuickTime will not play a track if it is not enabled. So make sure
4608 * that one track of each type (audio, video, subtitle) is enabled.
4610 * Subtitles are special. For audio and video, setting "enabled" also
4611 * makes the track "default" (i.e. it is rendered when played). For
4612 * subtitles, an "enabled" subtitle is not rendered by default, but
4613 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4616 static void enable_tracks(AVFormatContext *s)
4618 MOVMuxContext *mov = s->priv_data;
4620 int enabled[AVMEDIA_TYPE_NB];
4621 int first[AVMEDIA_TYPE_NB];
4623 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4628 for (i = 0; i < s->nb_streams; i++) {
4629 AVStream *st = s->streams[i];
4631 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4632 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4635 if (first[st->codec->codec_type] < 0)
4636 first[st->codec->codec_type] = i;
4637 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4638 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4639 enabled[st->codec->codec_type]++;
4643 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4645 case AVMEDIA_TYPE_VIDEO:
4646 case AVMEDIA_TYPE_AUDIO:
4647 case AVMEDIA_TYPE_SUBTITLE:
4649 mov->per_stream_grouping = 1;
4650 if (!enabled[i] && first[i] >= 0)
4651 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4657 static void mov_free(AVFormatContext *s)
4659 MOVMuxContext *mov = s->priv_data;
4662 if (mov->chapter_track) {
4663 if (mov->tracks[mov->chapter_track].enc)
4664 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4665 av_freep(&mov->tracks[mov->chapter_track].enc);
4668 for (i = 0; i < mov->nb_streams; i++) {
4669 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4670 ff_mov_close_hinting(&mov->tracks[i]);
4671 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4672 av_freep(&mov->tracks[i].enc);
4673 av_freep(&mov->tracks[i].cluster);
4674 av_freep(&mov->tracks[i].frag_info);
4676 if (mov->tracks[i].vos_len)
4677 av_freep(&mov->tracks[i].vos_data);
4680 av_freep(&mov->tracks);
4683 static uint32_t rgb_to_yuv(uint32_t rgb)
4688 r = (rgb >> 16) & 0xFF;
4689 g = (rgb >> 8) & 0xFF;
4692 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4693 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4694 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4696 return (y << 16) | (cr << 8) | cb;
4699 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4702 int i, width = 720, height = 480;
4703 int have_palette = 0, have_size = 0;
4704 uint32_t palette[16];
4705 char *cur = st->codec->extradata;
4707 while (cur && *cur) {
4708 if (strncmp("palette:", cur, 8) == 0) {
4710 count = sscanf(cur + 8,
4711 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4712 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4713 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4714 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4715 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4716 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4717 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4718 &palette[12], &palette[13], &palette[14], &palette[15]);
4720 for (i = 0; i < count; i++) {
4721 palette[i] = rgb_to_yuv(palette[i]);
4724 } else if (!strncmp("size:", cur, 5)) {
4725 sscanf(cur + 5, "%dx%d", &width, &height);
4728 if (have_palette && have_size)
4730 cur += strcspn(cur, "\n\r");
4731 cur += strspn(cur, "\n\r");
4734 track->vos_data = av_malloc(16*4);
4735 if (!track->vos_data)
4736 return AVERROR(ENOMEM);
4737 for (i = 0; i < 16; i++) {
4738 AV_WB32(track->vos_data + i * 4, palette[i]);
4740 track->vos_len = 16 * 4;
4742 st->codec->width = width;
4743 st->codec->height = track->height = height;
4748 static int mov_write_header(AVFormatContext *s)
4750 AVIOContext *pb = s->pb;
4751 MOVMuxContext *mov = s->priv_data;
4752 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4753 int i, ret, hint_track = 0, tmcd_track = 0;
4757 /* Default mode == MP4 */
4758 mov->mode = MODE_MP4;
4761 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4762 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4763 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4764 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4765 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4766 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4767 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4770 if (s->flags & AVFMT_FLAG_BITEXACT)
4773 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4774 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
4776 /* Set the FRAGMENT flag if any of the fragmentation methods are
4778 if (mov->max_fragment_duration || mov->max_fragment_size ||
4779 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4780 FF_MOV_FLAG_FRAG_KEYFRAME |
4781 FF_MOV_FLAG_FRAG_CUSTOM))
4782 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4784 /* Set other implicit flags immediately */
4785 if (mov->mode == MODE_ISM)
4786 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4787 FF_MOV_FLAG_FRAGMENT;
4788 if (mov->flags & FF_MOV_FLAG_DASH)
4789 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4790 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4792 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4793 mov->reserved_moov_size = -1;
4796 if (mov->use_editlist < 0) {
4797 mov->use_editlist = 1;
4798 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4799 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4800 // If we can avoid needing an edit list by shifting the
4801 // tracks, prefer that over (trying to) write edit lists
4802 // in fragmented output.
4803 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4804 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4805 mov->use_editlist = 0;
4808 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4809 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4810 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4812 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4813 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4815 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4816 * is enabled, we don't support non-seekable output at all. */
4817 if (!s->pb->seekable &&
4818 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4819 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4820 return AVERROR(EINVAL);
4823 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4824 if ((ret = mov_write_identification(pb, s)) < 0)
4828 mov->nb_streams = s->nb_streams;
4829 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4830 mov->chapter_track = mov->nb_streams++;
4832 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4833 /* Add hint tracks for each audio and video stream */
4834 hint_track = mov->nb_streams;
4835 for (i = 0; i < s->nb_streams; i++) {
4836 AVStream *st = s->streams[i];
4837 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4838 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4844 if (mov->mode == MODE_MOV) {
4845 tmcd_track = mov->nb_streams;
4847 /* +1 tmcd track for each video stream with a timecode */
4848 for (i = 0; i < s->nb_streams; i++) {
4849 AVStream *st = s->streams[i];
4850 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4851 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4852 mov->nb_meta_tmcd++;
4855 /* check if there is already a tmcd track to remux */
4856 if (mov->nb_meta_tmcd) {
4857 for (i = 0; i < s->nb_streams; i++) {
4858 AVStream *st = s->streams[i];
4859 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4860 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4861 "so timecode metadata are now ignored\n");
4862 mov->nb_meta_tmcd = 0;
4867 mov->nb_streams += mov->nb_meta_tmcd;
4870 // Reserve an extra stream for chapters for the case where chapters
4871 // are written in the trailer
4872 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4874 return AVERROR(ENOMEM);
4876 for (i = 0; i < s->nb_streams; i++) {
4877 AVStream *st= s->streams[i];
4878 MOVTrack *track= &mov->tracks[i];
4879 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4882 track->enc = st->codec;
4883 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4884 if (track->language < 0)
4885 track->language = 0;
4886 track->mode = mov->mode;
4887 track->tag = mov_find_codec_tag(s, track);
4889 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4890 "codec not currently supported in container\n",
4891 avcodec_get_name(st->codec->codec_id), i);
4892 ret = AVERROR(EINVAL);
4895 /* If hinting of this track is enabled by a later hint track,
4896 * this is updated. */
4897 track->hint_track = -1;
4898 track->start_dts = AV_NOPTS_VALUE;
4899 track->start_cts = AV_NOPTS_VALUE;
4900 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4901 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4902 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4903 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4904 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4905 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4906 ret = AVERROR(EINVAL);
4909 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4911 if (mov->video_track_timescale) {
4912 track->timescale = mov->video_track_timescale;
4914 track->timescale = st->time_base.den;
4915 while(track->timescale < 10000)
4916 track->timescale *= 2;
4918 if (st->codec->width > 65535 || st->codec->height > 65535) {
4919 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4920 ret = AVERROR(EINVAL);
4923 if (track->mode == MODE_MOV && track->timescale > 100000)
4924 av_log(s, AV_LOG_WARNING,
4925 "WARNING codec timebase is very high. If duration is too long,\n"
4926 "file may not be playable by quicktime. Specify a shorter timebase\n"
4927 "or choose different container.\n");
4928 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4929 track->timescale = st->codec->sample_rate;
4930 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4931 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4932 track->audio_vbr = 1;
4933 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4934 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4935 st->codec->codec_id == AV_CODEC_ID_ILBC){
4936 if (!st->codec->block_align) {
4937 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4938 ret = AVERROR(EINVAL);
4941 track->sample_size = st->codec->block_align;
4942 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4943 track->audio_vbr = 1;
4945 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4947 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4948 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4949 track->audio_vbr = 1;
4951 if (track->mode != MODE_MOV &&
4952 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4953 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4954 i, track->enc->sample_rate);
4955 ret = AVERROR(EINVAL);
4958 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4959 track->timescale = st->time_base.den;
4960 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4961 track->timescale = st->time_base.den;
4963 track->timescale = MOV_TIMESCALE;
4966 track->height = st->codec->height;
4967 /* The ism specific timescale isn't mandatory, but is assumed by
4968 * some tools, such as mp4split. */
4969 if (mov->mode == MODE_ISM)
4970 track->timescale = 10000000;
4972 avpriv_set_pts_info(st, 64, 1, track->timescale);
4974 /* copy extradata if it exists */
4975 if (st->codec->extradata_size) {
4976 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4977 mov_create_dvd_sub_decoder_specific_info(track, st);
4978 else if (!TAG_IS_AVCI(track->tag) && st->codec->codec_id != AV_CODEC_ID_DNXHD) {
4979 track->vos_len = st->codec->extradata_size;
4980 track->vos_data = av_malloc(track->vos_len);
4981 if (!track->vos_data) {
4982 ret = AVERROR(ENOMEM);
4985 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4990 for (i = 0; i < s->nb_streams; i++) {
4992 AVStream *st= s->streams[i];
4993 MOVTrack *track= &mov->tracks[i];
4995 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4996 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4999 for (j = 0; j < s->nb_streams; j++) {
5000 AVStream *stj= s->streams[j];
5001 MOVTrack *trackj= &mov->tracks[j];
5005 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5006 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
5007 trackj->language != track->language ||
5008 trackj->tag != track->tag
5011 track->multichannel_as_mono++;
5018 if (mov->reserved_moov_size){
5019 mov->reserved_moov_pos= avio_tell(pb);
5020 if (mov->reserved_moov_size > 0)
5021 avio_skip(pb, mov->reserved_moov_size);
5024 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5025 /* If no fragmentation options have been set, set a default. */
5026 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5027 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5028 !mov->max_fragment_duration && !mov->max_fragment_size)
5029 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5031 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5032 mov->reserved_moov_pos = avio_tell(pb);
5033 mov_write_mdat_tag(pb, mov);
5036 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
5037 mov->time = ff_iso8601_to_unix_time(t->value);
5039 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5041 if (mov->chapter_track)
5042 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5045 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5046 /* Initialize the hint tracks for each audio and video stream */
5047 for (i = 0; i < s->nb_streams; i++) {
5048 AVStream *st = s->streams[i];
5049 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5050 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5051 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5058 if (mov->nb_meta_tmcd) {
5059 /* Initialize the tmcd tracks */
5060 for (i = 0; i < s->nb_streams; i++) {
5061 AVStream *st = s->streams[i];
5064 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5066 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5069 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5078 if (mov->flags & FF_MOV_FLAG_ISML)
5079 mov_write_isml_manifest(pb, mov);
5081 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5082 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5083 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5086 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5087 mov->reserved_moov_pos = avio_tell(pb);
5096 static int get_moov_size(AVFormatContext *s)
5099 AVIOContext *moov_buf;
5100 MOVMuxContext *mov = s->priv_data;
5102 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5104 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5106 return ffio_close_null_buf(moov_buf);
5109 static int get_sidx_size(AVFormatContext *s)
5113 MOVMuxContext *mov = s->priv_data;
5115 if ((ret = ffio_open_null_buf(&buf)) < 0)
5117 mov_write_sidx_tags(buf, mov, -1, 0);
5118 return ffio_close_null_buf(buf);
5122 * This function gets the moov size if moved to the top of the file: the chunk
5123 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5124 * entries) when the moov is moved to the beginning, so the size of the moov
5125 * would change. It also updates the chunk offset tables.
5127 static int compute_moov_size(AVFormatContext *s)
5129 int i, moov_size, moov_size2;
5130 MOVMuxContext *mov = s->priv_data;
5132 moov_size = get_moov_size(s);
5136 for (i = 0; i < mov->nb_streams; i++)
5137 mov->tracks[i].data_offset += moov_size;
5139 moov_size2 = get_moov_size(s);
5143 /* if the size changed, we just switched from stco to co64 and need to
5144 * update the offsets */
5145 if (moov_size2 != moov_size)
5146 for (i = 0; i < mov->nb_streams; i++)
5147 mov->tracks[i].data_offset += moov_size2 - moov_size;
5152 static int compute_sidx_size(AVFormatContext *s)
5155 MOVMuxContext *mov = s->priv_data;
5157 sidx_size = get_sidx_size(s);
5161 for (i = 0; i < mov->nb_streams; i++)
5162 mov->tracks[i].data_offset += sidx_size;
5167 static int shift_data(AVFormatContext *s)
5169 int ret = 0, moov_size;
5170 MOVMuxContext *mov = s->priv_data;
5171 int64_t pos, pos_end = avio_tell(s->pb);
5172 uint8_t *buf, *read_buf[2];
5173 int read_buf_id = 0;
5175 AVIOContext *read_pb;
5177 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5178 moov_size = compute_sidx_size(s);
5180 moov_size = compute_moov_size(s);
5184 buf = av_malloc(moov_size * 2);
5186 return AVERROR(ENOMEM);
5188 read_buf[1] = buf + moov_size;
5190 /* Shift the data: the AVIO context of the output can only be used for
5191 * writing, so we re-open the same output, but for reading. It also avoids
5192 * a read/seek/write/seek back and forth. */
5194 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5196 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5197 "the second pass (faststart)\n", s->filename);
5201 /* mark the end of the shift to up to the last data we wrote, and get ready
5203 pos_end = avio_tell(s->pb);
5204 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
5206 /* start reading at where the new moov will be placed */
5207 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
5208 pos = avio_tell(read_pb);
5210 #define READ_BLOCK do { \
5211 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5215 /* shift data by chunk of at most moov_size */
5220 n = read_size[read_buf_id];
5223 avio_write(s->pb, read_buf[read_buf_id], n);
5225 } while (pos < pos_end);
5226 avio_close(read_pb);
5233 static int mov_write_trailer(AVFormatContext *s)
5235 MOVMuxContext *mov = s->priv_data;
5236 AVIOContext *pb = s->pb;
5242 * Before actually writing the trailer, make sure that there are no
5243 * dangling subtitles, that need a terminating sample.
5245 for (i = 0; i < mov->nb_streams; i++) {
5246 MOVTrack *trk = &mov->tracks[i];
5247 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5248 !trk->last_sample_is_subtitle_end) {
5249 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5250 trk->last_sample_is_subtitle_end = 1;
5254 // If there were no chapters when the header was written, but there
5255 // are chapters now, write them in the trailer. This only works
5256 // when we are not doing fragments.
5257 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5258 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5259 mov->chapter_track = mov->nb_streams++;
5260 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5265 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5266 moov_pos = avio_tell(pb);
5268 /* Write size of mdat tag */
5269 if (mov->mdat_size + 8 <= UINT32_MAX) {
5270 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5271 avio_wb32(pb, mov->mdat_size + 8);
5273 /* overwrite 'wide' placeholder atom */
5274 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5275 /* special value: real atom size will be 64 bit value after
5278 ffio_wfourcc(pb, "mdat");
5279 avio_wb64(pb, mov->mdat_size + 16);
5281 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
5283 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5284 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5285 res = shift_data(s);
5287 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5288 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5291 } else if (mov->reserved_moov_size > 0) {
5293 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5295 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
5297 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5298 res = AVERROR(EINVAL);
5301 avio_wb32(pb, size);
5302 ffio_wfourcc(pb, "free");
5303 ffio_fill(pb, 0, size - 8);
5304 avio_seek(pb, moov_pos, SEEK_SET);
5306 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5311 mov_auto_flush_fragment(s);
5312 for (i = 0; i < mov->nb_streams; i++)
5313 mov->tracks[i].data_offset = 0;
5314 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5315 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5316 res = shift_data(s);
5318 int64_t end = avio_tell(pb);
5319 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
5320 mov_write_sidx_tags(pb, mov, -1, 0);
5321 avio_seek(pb, end, SEEK_SET);
5322 mov_write_mfra_tag(pb, mov);
5325 mov_write_mfra_tag(pb, mov);
5335 #if CONFIG_MOV_MUXER
5337 AVOutputFormat ff_mov_muxer = {
5339 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5340 .extensions = "mov",
5341 .priv_data_size = sizeof(MOVMuxContext),
5342 .audio_codec = AV_CODEC_ID_AAC,
5343 .video_codec = CONFIG_LIBX264_ENCODER ?
5344 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5345 .write_header = mov_write_header,
5346 .write_packet = mov_write_packet,
5347 .write_trailer = mov_write_trailer,
5348 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5349 .codec_tag = (const AVCodecTag* const []){
5350 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5352 .priv_class = &mov_muxer_class,
5355 #if CONFIG_TGP_MUXER
5357 AVOutputFormat ff_tgp_muxer = {
5359 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5360 .extensions = "3gp",
5361 .priv_data_size = sizeof(MOVMuxContext),
5362 .audio_codec = AV_CODEC_ID_AMR_NB,
5363 .video_codec = AV_CODEC_ID_H263,
5364 .write_header = mov_write_header,
5365 .write_packet = mov_write_packet,
5366 .write_trailer = mov_write_trailer,
5367 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5368 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5369 .priv_class = &tgp_muxer_class,
5372 #if CONFIG_MP4_MUXER
5374 AVOutputFormat ff_mp4_muxer = {
5376 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5377 .mime_type = "application/mp4",
5378 .extensions = "mp4",
5379 .priv_data_size = sizeof(MOVMuxContext),
5380 .audio_codec = AV_CODEC_ID_AAC,
5381 .video_codec = CONFIG_LIBX264_ENCODER ?
5382 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5383 .write_header = mov_write_header,
5384 .write_packet = mov_write_packet,
5385 .write_trailer = mov_write_trailer,
5386 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5387 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5388 .priv_class = &mp4_muxer_class,
5391 #if CONFIG_PSP_MUXER
5393 AVOutputFormat ff_psp_muxer = {
5395 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5396 .extensions = "mp4,psp",
5397 .priv_data_size = sizeof(MOVMuxContext),
5398 .audio_codec = AV_CODEC_ID_AAC,
5399 .video_codec = CONFIG_LIBX264_ENCODER ?
5400 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5401 .write_header = mov_write_header,
5402 .write_packet = mov_write_packet,
5403 .write_trailer = mov_write_trailer,
5404 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5405 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5406 .priv_class = &psp_muxer_class,
5409 #if CONFIG_TG2_MUXER
5411 AVOutputFormat ff_tg2_muxer = {
5413 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5414 .extensions = "3g2",
5415 .priv_data_size = sizeof(MOVMuxContext),
5416 .audio_codec = AV_CODEC_ID_AMR_NB,
5417 .video_codec = AV_CODEC_ID_H263,
5418 .write_header = mov_write_header,
5419 .write_packet = mov_write_packet,
5420 .write_trailer = mov_write_trailer,
5421 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5422 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5423 .priv_class = &tg2_muxer_class,
5426 #if CONFIG_IPOD_MUXER
5428 AVOutputFormat ff_ipod_muxer = {
5430 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5431 .mime_type = "application/mp4",
5432 .extensions = "m4v,m4a",
5433 .priv_data_size = sizeof(MOVMuxContext),
5434 .audio_codec = AV_CODEC_ID_AAC,
5435 .video_codec = AV_CODEC_ID_H264,
5436 .write_header = mov_write_header,
5437 .write_packet = mov_write_packet,
5438 .write_trailer = mov_write_trailer,
5439 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5440 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5441 .priv_class = &ipod_muxer_class,
5444 #if CONFIG_ISMV_MUXER
5446 AVOutputFormat ff_ismv_muxer = {
5448 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5449 .mime_type = "application/mp4",
5450 .extensions = "ismv,isma",
5451 .priv_data_size = sizeof(MOVMuxContext),
5452 .audio_codec = AV_CODEC_ID_AAC,
5453 .video_codec = AV_CODEC_ID_H264,
5454 .write_header = mov_write_header,
5455 .write_packet = mov_write_packet,
5456 .write_trailer = mov_write_trailer,
5457 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5458 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5459 .priv_class = &ismv_muxer_class,
5462 #if CONFIG_F4V_MUXER
5464 AVOutputFormat ff_f4v_muxer = {
5466 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5467 .mime_type = "application/f4v",
5468 .extensions = "f4v",
5469 .priv_data_size = sizeof(MOVMuxContext),
5470 .audio_codec = AV_CODEC_ID_AAC,
5471 .video_codec = AV_CODEC_ID_H264,
5472 .write_header = mov_write_header,
5473 .write_packet = mov_write_packet,
5474 .write_trailer = mov_write_trailer,
5475 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5476 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5477 .priv_class = &f4v_muxer_class,