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/libm.h"
44 #include "libavutil/opt.h"
45 #include "libavutil/dict.h"
46 #include "libavutil/pixdesc.h"
47 #include "libavutil/timecode.h"
48 #include "libavutil/color_utils.h"
53 static const AVOption options[] = {
54 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "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" },
56 { "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 },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 { "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" },
64 { "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" },
65 { "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" },
66 { "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" },
67 { "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" },
68 { "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" },
69 { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
70 { "write_colr", "Write colr atom (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
71 { "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
72 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
73 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
74 { "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},
75 { "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},
76 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
77 { "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},
78 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
79 { "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},
80 { "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},
81 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
82 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
83 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
84 { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
85 { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
86 { "encryption_scheme", "Configures the encryption scheme, allowed values are none, cenc-aes-ctr", offsetof(MOVMuxContext, encryption_scheme_str), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
87 { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
88 { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
92 #define MOV_CLASS(flavor)\
93 static const AVClass flavor ## _muxer_class = {\
94 .class_name = #flavor " muxer",\
95 .item_name = av_default_item_name,\
97 .version = LIBAVUTIL_VERSION_INT,\
100 static int get_moov_size(AVFormatContext *s);
102 static int utf8len(const uint8_t *b)
107 GET_UTF8(val, *b++, return -1;)
113 //FIXME support 64 bit variant with wide placeholders
114 static int64_t update_size(AVIOContext *pb, int64_t pos)
116 int64_t curpos = avio_tell(pb);
117 avio_seek(pb, pos, SEEK_SET);
118 avio_wb32(pb, curpos - pos); /* rewrite size */
119 avio_seek(pb, curpos, SEEK_SET);
124 static int co64_required(const MOVTrack *track)
126 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
131 /* Chunk offset atom */
132 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
135 int mode64 = co64_required(track); // use 32 bit size variant if possible
136 int64_t pos = avio_tell(pb);
137 avio_wb32(pb, 0); /* size */
139 ffio_wfourcc(pb, "co64");
141 ffio_wfourcc(pb, "stco");
142 avio_wb32(pb, 0); /* version & flags */
143 avio_wb32(pb, track->chunkCount); /* entry count */
144 for (i = 0; i < track->entry; i++) {
145 if (!track->cluster[i].chunkNum)
148 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
150 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
152 return update_size(pb, pos);
155 /* Sample size atom */
156 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
159 int i, j, entries = 0, tst = -1, oldtst = -1;
161 int64_t pos = avio_tell(pb);
162 avio_wb32(pb, 0); /* size */
163 ffio_wfourcc(pb, "stsz");
164 avio_wb32(pb, 0); /* version & flags */
166 for (i = 0; i < track->entry; i++) {
167 tst = track->cluster[i].size / track->cluster[i].entries;
168 if (oldtst != -1 && tst != oldtst)
171 entries += track->cluster[i].entries;
173 if (equalChunks && track->entry) {
174 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
175 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
176 avio_wb32(pb, sSize); // sample size
177 avio_wb32(pb, entries); // sample count
179 avio_wb32(pb, 0); // sample size
180 avio_wb32(pb, entries); // sample count
181 for (i = 0; i < track->entry; i++) {
182 for (j = 0; j < track->cluster[i].entries; j++) {
183 avio_wb32(pb, track->cluster[i].size /
184 track->cluster[i].entries);
188 return update_size(pb, pos);
191 /* Sample to chunk atom */
192 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
194 int index = 0, oldval = -1, i;
195 int64_t entryPos, curpos;
197 int64_t pos = avio_tell(pb);
198 avio_wb32(pb, 0); /* size */
199 ffio_wfourcc(pb, "stsc");
200 avio_wb32(pb, 0); // version & flags
201 entryPos = avio_tell(pb);
202 avio_wb32(pb, track->chunkCount); // entry count
203 for (i = 0; i < track->entry; i++) {
204 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
205 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
206 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
207 avio_wb32(pb, 0x1); // sample description index
208 oldval = track->cluster[i].samples_in_chunk;
212 curpos = avio_tell(pb);
213 avio_seek(pb, entryPos, SEEK_SET);
214 avio_wb32(pb, index); // rewrite size
215 avio_seek(pb, curpos, SEEK_SET);
217 return update_size(pb, pos);
220 /* Sync sample atom */
221 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
223 int64_t curpos, entryPos;
225 int64_t pos = avio_tell(pb);
226 avio_wb32(pb, 0); // size
227 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
228 avio_wb32(pb, 0); // version & flags
229 entryPos = avio_tell(pb);
230 avio_wb32(pb, track->entry); // entry count
231 for (i = 0; i < track->entry; i++) {
232 if (track->cluster[i].flags & flag) {
233 avio_wb32(pb, i + 1);
237 curpos = avio_tell(pb);
238 avio_seek(pb, entryPos, SEEK_SET);
239 avio_wb32(pb, index); // rewrite size
240 avio_seek(pb, curpos, SEEK_SET);
241 return update_size(pb, pos);
244 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
246 avio_wb32(pb, 0x11); /* size */
247 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
248 else ffio_wfourcc(pb, "damr");
249 ffio_wfourcc(pb, "FFMP");
250 avio_w8(pb, 0); /* decoder version */
252 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
253 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
254 avio_w8(pb, 0x01); /* Frames per sample */
258 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
263 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
265 if (track->vos_len < 7)
269 ffio_wfourcc(pb, "dac3");
271 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
272 fscod = get_bits(&gbc, 2);
273 frmsizecod = get_bits(&gbc, 6);
274 bsid = get_bits(&gbc, 5);
275 bsmod = get_bits(&gbc, 3);
276 acmod = get_bits(&gbc, 3);
278 skip_bits(&gbc, 2); // dsurmod
280 if ((acmod & 1) && acmod != 1)
281 skip_bits(&gbc, 2); // cmixlev
283 skip_bits(&gbc, 2); // surmixlev
285 lfeon = get_bits1(&gbc);
287 init_put_bits(&pbc, buf, sizeof(buf));
288 put_bits(&pbc, 2, fscod);
289 put_bits(&pbc, 5, bsid);
290 put_bits(&pbc, 3, bsmod);
291 put_bits(&pbc, 3, acmod);
292 put_bits(&pbc, 1, lfeon);
293 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
294 put_bits(&pbc, 5, 0); // reserved
296 flush_put_bits(&pbc);
297 avio_write(pb, buf, sizeof(buf));
307 /* Layout of the EC3SpecificBox */
308 /* maximum bitrate */
310 /* number of independent substreams */
313 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
315 /* bit stream identification 5 bits */
317 /* one bit reserved */
318 /* audio service mixing (not supported yet) 1 bit */
319 /* bit stream mode 3 bits */
321 /* audio coding mode 3 bits */
323 /* sub woofer on 1 bit */
325 /* 3 bits reserved */
326 /* number of dependent substreams associated with this substream 4 bits */
328 /* channel locations of the dependent substream(s), if any, 9 bits */
330 /* if there is no dependent substream, then one bit reserved instead */
331 } substream[1]; /* TODO: support 8 independent substreams */
334 #if CONFIG_AC3_PARSER
335 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
338 AC3HeaderInfo tmp, *hdr = &tmp;
339 struct eac3_info *info;
342 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
343 return AVERROR(ENOMEM);
344 info = track->eac3_priv;
346 init_get_bits(&gbc, pkt->data, pkt->size * 8);
347 if (avpriv_ac3_parse_header(&gbc, &hdr) < 0) {
348 /* drop the packets until we see a good one */
350 av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
353 return AVERROR_INVALIDDATA;
356 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
357 num_blocks = hdr->num_blocks;
359 if (!info->ec3_done) {
360 /* AC-3 substream must be the first one */
361 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
362 return AVERROR(EINVAL);
364 /* this should always be the case, given that our AC-3 parser
365 * concatenates dependent frames to their independent parent */
366 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
367 /* substream ids must be incremental */
368 if (hdr->substreamid > info->num_ind_sub + 1)
369 return AVERROR(EINVAL);
371 if (hdr->substreamid == info->num_ind_sub + 1) {
372 //info->num_ind_sub++;
373 avpriv_request_sample(track->par, "Multiple independent substreams");
374 return AVERROR_PATCHWELCOME;
375 } else if (hdr->substreamid < info->num_ind_sub ||
376 hdr->substreamid == 0 && info->substream[0].bsid) {
382 /* fill the info needed for the "dec3" atom */
383 info->substream[hdr->substreamid].fscod = hdr->sr_code;
384 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
385 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
386 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
387 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
389 /* Parse dependent substream(s), if any */
390 if (pkt->size != hdr->frame_size) {
391 int cumul_size = hdr->frame_size;
392 int parent = hdr->substreamid;
394 while (cumul_size != pkt->size) {
396 init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
397 if (avpriv_ac3_parse_header(&gbc, &hdr) < 0)
398 return AVERROR_INVALIDDATA;
399 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
400 return AVERROR(EINVAL);
401 cumul_size += hdr->frame_size;
402 info->substream[parent].num_dep_sub++;
404 /* header is parsed up to lfeon, but custom channel map may be needed */
407 /* skip volume control params */
408 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
409 skip_bits(&gbc, 5); // skip dialog normalization
410 if (get_bits1(&gbc)) {
411 skip_bits(&gbc, 8); // skip compression gain word
414 /* get the dependent stream channel map, if exists */
416 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
418 info->substream[parent].chan_loc |= hdr->channel_mode;
424 if (!info->num_blocks && num_blocks == 6)
426 else if (info->num_blocks + num_blocks > 6)
427 return AVERROR_INVALIDDATA;
429 if (!info->num_blocks) {
431 if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
433 info->num_blocks = num_blocks;
437 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
439 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
440 info->num_blocks += num_blocks;
441 info->pkt.duration += pkt->duration;
442 if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
444 if (info->num_blocks != 6)
446 av_packet_unref(pkt);
447 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
449 av_packet_unref(&info->pkt);
450 info->num_blocks = 0;
457 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
461 struct eac3_info *info;
464 if (!track->eac3_priv)
465 return AVERROR(EINVAL);
467 info = track->eac3_priv;
468 size = 2 + 4 * (info->num_ind_sub + 1);
469 buf = av_malloc(size);
471 size = AVERROR(ENOMEM);
475 init_put_bits(&pbc, buf, size);
476 put_bits(&pbc, 13, info->data_rate);
477 put_bits(&pbc, 3, info->num_ind_sub);
478 for (i = 0; i <= info->num_ind_sub; i++) {
479 put_bits(&pbc, 2, info->substream[i].fscod);
480 put_bits(&pbc, 5, info->substream[i].bsid);
481 put_bits(&pbc, 1, 0); /* reserved */
482 put_bits(&pbc, 1, 0); /* asvc */
483 put_bits(&pbc, 3, info->substream[i].bsmod);
484 put_bits(&pbc, 3, info->substream[i].acmod);
485 put_bits(&pbc, 1, info->substream[i].lfeon);
486 put_bits(&pbc, 5, 0); /* reserved */
487 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
488 if (!info->substream[i].num_dep_sub) {
489 put_bits(&pbc, 1, 0); /* reserved */
492 put_bits(&pbc, 9, info->substream[i].chan_loc);
495 flush_put_bits(&pbc);
497 avio_wb32(pb, size + 8);
498 ffio_wfourcc(pb, "dec3");
499 avio_write(pb, buf, size);
504 av_packet_unref(&info->pkt);
505 av_freep(&track->eac3_priv);
511 * This function writes extradata "as is".
512 * Extradata must be formatted like a valid atom (with size and tag).
514 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
516 avio_write(pb, track->par->extradata, track->par->extradata_size);
517 return track->par->extradata_size;
520 static int mov_write_enda_tag(AVIOContext *pb)
523 ffio_wfourcc(pb, "enda");
524 avio_wb16(pb, 1); /* little endian */
528 static int mov_write_enda_tag_be(AVIOContext *pb)
531 ffio_wfourcc(pb, "enda");
532 avio_wb16(pb, 0); /* big endian */
536 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
541 avio_w8(pb, (size >> (7 * i)) | 0x80);
542 avio_w8(pb, size & 0x7F);
545 static unsigned compute_avg_bitrate(MOVTrack *track)
549 if (!track->track_duration)
551 for (i = 0; i < track->entry; i++)
552 size += track->cluster[i].size;
553 return size * 8 * track->timescale / track->track_duration;
556 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
558 AVCPBProperties *props;
559 int64_t pos = avio_tell(pb);
560 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
561 unsigned avg_bitrate;
563 avio_wb32(pb, 0); // size
564 ffio_wfourcc(pb, "esds");
565 avio_wb32(pb, 0); // Version
568 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
569 avio_wb16(pb, track->track_id);
570 avio_w8(pb, 0x00); // flags (= no flags)
572 // DecoderConfig descriptor
573 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
575 // Object type indication
576 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
577 track->par->codec_id == AV_CODEC_ID_MP3) &&
578 track->par->sample_rate > 24000)
579 avio_w8(pb, 0x6B); // 11172-3
581 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
583 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
584 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
585 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
586 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
587 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
588 avio_w8(pb, 0x15); // flags (= Audiostream)
590 avio_w8(pb, 0x11); // flags (= Visualstream)
592 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
595 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
597 avg_bitrate = compute_avg_bitrate(track);
598 avio_wb32(pb, props ? FFMAX3(props->max_bitrate, props->avg_bitrate, avg_bitrate) : FFMAX(track->par->bit_rate, avg_bitrate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
599 avio_wb32(pb, avg_bitrate);
601 if (track->vos_len) {
602 // DecoderSpecific info descriptor
603 put_descr(pb, 0x05, track->vos_len);
604 avio_write(pb, track->vos_data, track->vos_len);
608 put_descr(pb, 0x06, 1);
610 return update_size(pb, pos);
613 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
615 return codec_id == AV_CODEC_ID_PCM_S24LE ||
616 codec_id == AV_CODEC_ID_PCM_S32LE ||
617 codec_id == AV_CODEC_ID_PCM_F32LE ||
618 codec_id == AV_CODEC_ID_PCM_F64LE;
621 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
623 return codec_id == AV_CODEC_ID_PCM_S24BE ||
624 codec_id == AV_CODEC_ID_PCM_S32BE ||
625 codec_id == AV_CODEC_ID_PCM_F32BE ||
626 codec_id == AV_CODEC_ID_PCM_F64BE;
629 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
632 int64_t pos = avio_tell(pb);
634 avio_wl32(pb, track->tag); // store it byteswapped
635 track->par->codec_tag = av_bswap16(track->tag >> 16);
636 if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
638 return update_size(pb, pos);
641 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
644 int64_t pos = avio_tell(pb);
646 ffio_wfourcc(pb, "wfex");
647 if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
649 return update_size(pb, pos);
652 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
654 uint32_t layout_tag, bitmap;
655 int64_t pos = avio_tell(pb);
657 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
658 track->par->channel_layout,
661 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
662 "lack of channel information\n");
666 if (track->multichannel_as_mono)
669 avio_wb32(pb, 0); // Size
670 ffio_wfourcc(pb, "chan"); // Type
671 avio_w8(pb, 0); // Version
672 avio_wb24(pb, 0); // Flags
673 avio_wb32(pb, layout_tag); // mChannelLayoutTag
674 avio_wb32(pb, bitmap); // mChannelBitmap
675 avio_wb32(pb, 0); // mNumberChannelDescriptions
677 return update_size(pb, pos);
680 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
682 int64_t pos = avio_tell(pb);
684 avio_wb32(pb, 0); /* size */
685 ffio_wfourcc(pb, "wave");
687 if (track->par->codec_id != AV_CODEC_ID_QDM2) {
688 avio_wb32(pb, 12); /* size */
689 ffio_wfourcc(pb, "frma");
690 avio_wl32(pb, track->tag);
693 if (track->par->codec_id == AV_CODEC_ID_AAC) {
694 /* useless atom needed by mplayer, ipod, not needed by quicktime */
695 avio_wb32(pb, 12); /* size */
696 ffio_wfourcc(pb, "mp4a");
698 mov_write_esds_tag(pb, track);
699 } else if (mov_pcm_le_gt16(track->par->codec_id)) {
700 mov_write_enda_tag(pb);
701 } else if (mov_pcm_be_gt16(track->par->codec_id)) {
702 mov_write_enda_tag_be(pb);
703 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
704 mov_write_amr_tag(pb, track);
705 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
706 mov_write_ac3_tag(pb, track);
707 } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
708 mov_write_eac3_tag(pb, track);
709 } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
710 track->par->codec_id == AV_CODEC_ID_QDM2) {
711 mov_write_extradata_tag(pb, track);
712 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
713 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
714 mov_write_ms_tag(s, pb, track);
717 avio_wb32(pb, 8); /* size */
718 avio_wb32(pb, 0); /* null tag */
720 return update_size(pb, pos);
723 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
726 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
727 int unescaped_size, seq_found = 0;
728 int level = 0, interlace = 0;
729 int packet_seq = track->vc1_info.packet_seq;
730 int packet_entry = track->vc1_info.packet_entry;
731 int slices = track->vc1_info.slices;
734 if (track->start_dts == AV_NOPTS_VALUE) {
735 /* No packets written yet, vc1_info isn't authoritative yet. */
736 /* Assume inline sequence and entry headers. */
737 packet_seq = packet_entry = 1;
738 av_log(NULL, AV_LOG_WARNING,
739 "moov atom written before any packets, unable to write correct "
740 "dvc1 atom. Set the delay_moov flag to fix this.\n");
743 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
745 return AVERROR(ENOMEM);
746 start = find_next_marker(track->vos_data, end);
747 for (next = start; next < end; start = next) {
750 next = find_next_marker(start + 4, end);
751 size = next - start - 4;
754 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
755 init_get_bits(&gb, unescaped, 8 * unescaped_size);
756 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
757 int profile = get_bits(&gb, 2);
758 if (profile != PROFILE_ADVANCED) {
760 return AVERROR(ENOSYS);
763 level = get_bits(&gb, 3);
764 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
766 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
767 skip_bits(&gb, 1); /* broadcast */
768 interlace = get_bits1(&gb);
769 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
774 return AVERROR(ENOSYS);
777 init_put_bits(&pbc, buf, 7);
778 /* VC1DecSpecStruc */
779 put_bits(&pbc, 4, 12); /* profile - advanced */
780 put_bits(&pbc, 3, level);
781 put_bits(&pbc, 1, 0); /* reserved */
782 /* VC1AdvDecSpecStruc */
783 put_bits(&pbc, 3, level);
784 put_bits(&pbc, 1, 0); /* cbr */
785 put_bits(&pbc, 6, 0); /* reserved */
786 put_bits(&pbc, 1, !interlace); /* no interlace */
787 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
788 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
789 put_bits(&pbc, 1, !slices); /* no slice code */
790 put_bits(&pbc, 1, 0); /* no bframe */
791 put_bits(&pbc, 1, 0); /* reserved */
794 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
795 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
797 put_bits32(&pbc, 0xffffffff);
799 flush_put_bits(&pbc);
806 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
808 uint8_t buf[7] = { 0 };
811 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
814 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
815 ffio_wfourcc(pb, "dvc1");
816 avio_write(pb, buf, sizeof(buf));
817 avio_write(pb, track->vos_data, track->vos_len);
822 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
824 avio_wb32(pb, track->vos_len + 8);
825 ffio_wfourcc(pb, "glbl");
826 avio_write(pb, track->vos_data, track->vos_len);
827 return 8 + track->vos_len;
831 * Compute flags for 'lpcm' tag.
832 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
834 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
837 case AV_CODEC_ID_PCM_F32BE:
838 case AV_CODEC_ID_PCM_F64BE:
840 case AV_CODEC_ID_PCM_F32LE:
841 case AV_CODEC_ID_PCM_F64LE:
843 case AV_CODEC_ID_PCM_U8:
845 case AV_CODEC_ID_PCM_S16BE:
846 case AV_CODEC_ID_PCM_S24BE:
847 case AV_CODEC_ID_PCM_S32BE:
849 case AV_CODEC_ID_PCM_S8:
850 case AV_CODEC_ID_PCM_S16LE:
851 case AV_CODEC_ID_PCM_S24LE:
852 case AV_CODEC_ID_PCM_S32LE:
859 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
863 if (cluster_idx >= track->entry)
866 if (cluster_idx + 1 == track->entry)
867 next_dts = track->track_duration + track->start_dts;
869 next_dts = track->cluster[cluster_idx + 1].dts;
871 next_dts -= track->cluster[cluster_idx].dts;
873 av_assert0(next_dts >= 0);
874 av_assert0(next_dts <= INT_MAX);
879 static int get_samples_per_packet(MOVTrack *track)
881 int i, first_duration;
883 // return track->par->frame_size;
885 /* use 1 for raw PCM */
886 if (!track->audio_vbr)
889 /* check to see if duration is constant for all clusters */
892 first_duration = get_cluster_duration(track, 0);
893 for (i = 1; i < track->entry; i++) {
894 if (get_cluster_duration(track, i) != first_duration)
897 return first_duration;
900 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
902 int64_t pos = avio_tell(pb);
904 uint32_t tag = track->tag;
906 if (track->mode == MODE_MOV) {
907 if (track->timescale > UINT16_MAX) {
908 if (mov_get_lpcm_flags(track->par->codec_id))
909 tag = AV_RL32("lpcm");
911 } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
912 mov_pcm_be_gt16(track->par->codec_id) ||
913 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
914 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
915 track->par->codec_id == AV_CODEC_ID_QDM2) {
920 avio_wb32(pb, 0); /* size */
921 if (mov->encryption_scheme != MOV_ENC_NONE) {
922 ffio_wfourcc(pb, "enca");
924 avio_wl32(pb, tag); // store it byteswapped
926 avio_wb32(pb, 0); /* Reserved */
927 avio_wb16(pb, 0); /* Reserved */
928 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
930 /* SoundDescription */
931 avio_wb16(pb, version); /* Version */
932 avio_wb16(pb, 0); /* Revision level */
933 avio_wb32(pb, 0); /* Reserved */
938 avio_wb16(pb, 0xfffe);
940 avio_wb32(pb, 0x00010000);
942 avio_wb64(pb, av_double2int(track->par->sample_rate));
943 avio_wb32(pb, track->par->channels);
944 avio_wb32(pb, 0x7F000000);
945 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
946 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
947 avio_wb32(pb, track->sample_size);
948 avio_wb32(pb, get_samples_per_packet(track));
950 if (track->mode == MODE_MOV) {
951 avio_wb16(pb, track->par->channels);
952 if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
953 track->par->codec_id == AV_CODEC_ID_PCM_S8)
954 avio_wb16(pb, 8); /* bits per sample */
955 else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
956 avio_wb16(pb, track->par->bits_per_coded_sample);
959 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
960 } else { /* reserved for mp4/3gp */
966 avio_wb16(pb, 0); /* packet size (= 0) */
967 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
968 track->par->sample_rate : 0);
969 avio_wb16(pb, 0); /* Reserved */
972 if (version == 1) { /* SoundDescription V1 extended info */
973 if (mov_pcm_le_gt16(track->par->codec_id) ||
974 mov_pcm_be_gt16(track->par->codec_id))
975 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
977 avio_wb32(pb, track->par->frame_size); /* Samples per packet */
978 avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
979 avio_wb32(pb, track->sample_size); /* Bytes per frame */
980 avio_wb32(pb, 2); /* Bytes per sample */
983 if (track->mode == MODE_MOV &&
984 (track->par->codec_id == AV_CODEC_ID_AAC ||
985 track->par->codec_id == AV_CODEC_ID_AC3 ||
986 track->par->codec_id == AV_CODEC_ID_EAC3 ||
987 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
988 track->par->codec_id == AV_CODEC_ID_ALAC ||
989 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
990 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
991 track->par->codec_id == AV_CODEC_ID_QDM2 ||
992 (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
993 (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
994 mov_write_wave_tag(s, pb, track);
995 else if (track->tag == MKTAG('m','p','4','a'))
996 mov_write_esds_tag(pb, track);
997 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
998 mov_write_amr_tag(pb, track);
999 else if (track->par->codec_id == AV_CODEC_ID_AC3)
1000 mov_write_ac3_tag(pb, track);
1001 else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1002 mov_write_eac3_tag(pb, track);
1003 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1004 mov_write_extradata_tag(pb, track);
1005 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1006 mov_write_wfex_tag(s, pb, track);
1007 else if (track->vos_len > 0)
1008 mov_write_glbl_tag(pb, track);
1010 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1011 mov_write_chan_tag(s, pb, track);
1013 if (mov->encryption_scheme != MOV_ENC_NONE) {
1014 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1017 return update_size(pb, pos);
1020 static int mov_write_d263_tag(AVIOContext *pb)
1022 avio_wb32(pb, 0xf); /* size */
1023 ffio_wfourcc(pb, "d263");
1024 ffio_wfourcc(pb, "FFMP");
1025 avio_w8(pb, 0); /* decoder version */
1026 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1027 avio_w8(pb, 0xa); /* level */
1028 avio_w8(pb, 0); /* profile */
1032 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1034 int64_t pos = avio_tell(pb);
1037 ffio_wfourcc(pb, "avcC");
1038 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1039 return update_size(pb, pos);
1042 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1044 int64_t pos = avio_tell(pb);
1047 ffio_wfourcc(pb, "hvcC");
1048 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1049 return update_size(pb, pos);
1052 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1053 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1059 if (track->vos_data && track->vos_len > 0x29) {
1060 if (track->vos_data[0] == 0x00 &&
1061 track->vos_data[1] == 0x00 &&
1062 track->vos_data[2] == 0x02 &&
1063 track->vos_data[3] == 0x80 &&
1064 (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1065 /* looks like a DNxHD bit stream */
1066 interlaced = (track->vos_data[5] & 2);
1067 cid = AV_RB32(track->vos_data + 0x28);
1069 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1073 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1077 avio_wb32(pb, 24); /* size */
1078 ffio_wfourcc(pb, "ACLR");
1079 ffio_wfourcc(pb, "ACLR");
1080 ffio_wfourcc(pb, "0001");
1081 if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1082 track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1083 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1084 } else { /* Full range (0-255) */
1085 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1087 avio_wb32(pb, 0); /* unknown */
1089 avio_wb32(pb, 24); /* size */
1090 ffio_wfourcc(pb, "APRG");
1091 ffio_wfourcc(pb, "APRG");
1092 ffio_wfourcc(pb, "0001");
1093 avio_wb32(pb, 1); /* unknown */
1094 avio_wb32(pb, 0); /* unknown */
1096 avio_wb32(pb, 120); /* size */
1097 ffio_wfourcc(pb, "ARES");
1098 ffio_wfourcc(pb, "ARES");
1099 ffio_wfourcc(pb, "0001");
1100 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1101 avio_wb32(pb, track->par->width);
1102 /* values below are based on samples created with quicktime and avid codecs */
1104 avio_wb32(pb, track->par->height / 2);
1105 avio_wb32(pb, 2); /* unknown */
1106 avio_wb32(pb, 0); /* unknown */
1107 avio_wb32(pb, 4); /* unknown */
1109 avio_wb32(pb, track->par->height);
1110 avio_wb32(pb, 1); /* unknown */
1111 avio_wb32(pb, 0); /* unknown */
1112 if (track->par->height == 1080)
1113 avio_wb32(pb, 5); /* unknown */
1115 avio_wb32(pb, 6); /* unknown */
1118 for (i = 0; i < 10; i++)
1124 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1127 ffio_wfourcc(pb, "DpxE");
1128 if (track->par->extradata_size >= 12 &&
1129 !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1130 avio_wb32(pb, track->par->extradata[11]);
1137 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1139 int tag = track->par->codec_tag;
1141 if (!ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id))
1144 if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1145 else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1146 else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1147 else if (track->par->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1148 else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1149 else if (track->par->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1150 else if (track->par->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1151 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1152 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1153 else if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1158 static const AVCodecTag codec_ipod_tags[] = {
1159 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1160 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1161 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1162 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1163 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1164 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1165 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1166 { AV_CODEC_ID_NONE, 0 },
1169 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1171 int tag = track->par->codec_tag;
1173 // keep original tag for subs, ipod supports both formats
1174 if (!(track->par->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1175 (tag == MKTAG('t', 'x', '3', 'g') ||
1176 tag == MKTAG('t', 'e', 'x', 't'))))
1177 tag = ff_codec_get_tag(codec_ipod_tags, track->par->codec_id);
1179 if (!av_match_ext(s->filename, "m4a") &&
1180 !av_match_ext(s->filename, "m4b") &&
1181 !av_match_ext(s->filename, "m4v"))
1182 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1183 "Quicktime/Ipod might not play the file\n");
1188 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1192 if (track->par->width == 720) { /* SD */
1193 if (track->par->height == 480) { /* NTSC */
1194 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1195 else tag = MKTAG('d','v','c',' ');
1196 }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1197 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1198 else tag = MKTAG('d','v','p','p');
1199 } else if (track->par->height == 720) { /* HD 720 line */
1200 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1201 else tag = MKTAG('d','v','h','p');
1202 } else if (track->par->height == 1080) { /* HD 1080 line */
1203 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1204 else tag = MKTAG('d','v','h','6');
1206 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1213 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1215 AVRational rate = st->avg_frame_rate;
1217 #if FF_API_LAVF_AVCTX
1218 FF_DISABLE_DEPRECATION_WARNINGS
1219 rate = av_inv_q(st->codec->time_base);
1220 if (av_timecode_check_frame_rate(rate) < 0) {
1221 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1222 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1223 rate = st->avg_frame_rate;
1225 FF_ENABLE_DEPRECATION_WARNINGS
1231 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1233 int tag = track->par->codec_tag;
1234 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1235 AVStream *st = track->st;
1236 int rate = av_q2d(find_fps(s, st));
1239 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1241 if (track->par->format == AV_PIX_FMT_YUV420P) {
1242 if (track->par->width == 1280 && track->par->height == 720) {
1244 if (rate == 24) tag = MKTAG('x','d','v','4');
1245 else if (rate == 25) tag = MKTAG('x','d','v','5');
1246 else if (rate == 30) tag = MKTAG('x','d','v','1');
1247 else if (rate == 50) tag = MKTAG('x','d','v','a');
1248 else if (rate == 60) tag = MKTAG('x','d','v','9');
1250 } else if (track->par->width == 1440 && track->par->height == 1080) {
1252 if (rate == 24) tag = MKTAG('x','d','v','6');
1253 else if (rate == 25) tag = MKTAG('x','d','v','7');
1254 else if (rate == 30) tag = MKTAG('x','d','v','8');
1256 if (rate == 25) tag = MKTAG('x','d','v','3');
1257 else if (rate == 30) tag = MKTAG('x','d','v','2');
1259 } else if (track->par->width == 1920 && track->par->height == 1080) {
1261 if (rate == 24) tag = MKTAG('x','d','v','d');
1262 else if (rate == 25) tag = MKTAG('x','d','v','e');
1263 else if (rate == 30) tag = MKTAG('x','d','v','f');
1265 if (rate == 25) tag = MKTAG('x','d','v','c');
1266 else if (rate == 30) tag = MKTAG('x','d','v','b');
1269 } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1270 if (track->par->width == 1280 && track->par->height == 720) {
1272 if (rate == 24) tag = MKTAG('x','d','5','4');
1273 else if (rate == 25) tag = MKTAG('x','d','5','5');
1274 else if (rate == 30) tag = MKTAG('x','d','5','1');
1275 else if (rate == 50) tag = MKTAG('x','d','5','a');
1276 else if (rate == 60) tag = MKTAG('x','d','5','9');
1278 } else if (track->par->width == 1920 && track->par->height == 1080) {
1280 if (rate == 24) tag = MKTAG('x','d','5','d');
1281 else if (rate == 25) tag = MKTAG('x','d','5','e');
1282 else if (rate == 30) tag = MKTAG('x','d','5','f');
1284 if (rate == 25) tag = MKTAG('x','d','5','c');
1285 else if (rate == 30) tag = MKTAG('x','d','5','b');
1293 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1295 int tag = track->par->codec_tag;
1296 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1297 AVStream *st = track->st;
1298 int rate = av_q2d(find_fps(s, st));
1301 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1303 if (track->par->format == AV_PIX_FMT_YUV420P10) {
1304 if (track->par->width == 960 && track->par->height == 720) {
1306 if (rate == 24) tag = MKTAG('a','i','5','p');
1307 else if (rate == 25) tag = MKTAG('a','i','5','q');
1308 else if (rate == 30) tag = MKTAG('a','i','5','p');
1309 else if (rate == 50) tag = MKTAG('a','i','5','q');
1310 else if (rate == 60) tag = MKTAG('a','i','5','p');
1312 } else if (track->par->width == 1440 && track->par->height == 1080) {
1314 if (rate == 24) tag = MKTAG('a','i','5','3');
1315 else if (rate == 25) tag = MKTAG('a','i','5','2');
1316 else if (rate == 30) tag = MKTAG('a','i','5','3');
1318 if (rate == 50) tag = MKTAG('a','i','5','5');
1319 else if (rate == 60) tag = MKTAG('a','i','5','6');
1322 } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1323 if (track->par->width == 1280 && track->par->height == 720) {
1325 if (rate == 24) tag = MKTAG('a','i','1','p');
1326 else if (rate == 25) tag = MKTAG('a','i','1','q');
1327 else if (rate == 30) tag = MKTAG('a','i','1','p');
1328 else if (rate == 50) tag = MKTAG('a','i','1','q');
1329 else if (rate == 60) tag = MKTAG('a','i','1','p');
1331 } else if (track->par->width == 1920 && track->par->height == 1080) {
1333 if (rate == 24) tag = MKTAG('a','i','1','3');
1334 else if (rate == 25) tag = MKTAG('a','i','1','2');
1335 else if (rate == 30) tag = MKTAG('a','i','1','3');
1337 if (rate == 25) tag = MKTAG('a','i','1','5');
1338 else if (rate == 50) tag = MKTAG('a','i','1','5');
1339 else if (rate == 60) tag = MKTAG('a','i','1','6');
1341 } else if ( track->par->width == 4096 && track->par->height == 2160
1342 || track->par->width == 3840 && track->par->height == 2160
1343 || track->par->width == 2048 && track->par->height == 1080) {
1344 tag = MKTAG('a','i','v','x');
1351 static const struct {
1352 enum AVPixelFormat pix_fmt;
1355 } mov_pix_fmt_tags[] = {
1356 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1357 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1358 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1359 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1360 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1361 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1362 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1363 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1364 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1365 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1366 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1367 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1368 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1369 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1370 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1373 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1375 int tag = track->par->codec_tag;
1377 enum AVPixelFormat pix_fmt;
1379 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1380 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1381 tag = mov_pix_fmt_tags[i].tag;
1382 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1383 if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1388 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1389 track->par->bits_per_coded_sample);
1390 if (tag == MKTAG('r','a','w',' ') &&
1391 track->par->format != pix_fmt &&
1392 track->par->format != AV_PIX_FMT_NONE)
1393 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1394 av_get_pix_fmt_name(track->par->format));
1398 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1400 int tag = track->par->codec_tag;
1402 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1403 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1404 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1405 track->par->codec_id == AV_CODEC_ID_H263 ||
1406 track->par->codec_id == AV_CODEC_ID_H264 ||
1407 track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1408 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1409 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1410 tag = mov_get_dv_codec_tag(s, track);
1411 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1412 tag = mov_get_rawvideo_codec_tag(s, track);
1413 else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1414 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1415 else if (track->par->codec_id == AV_CODEC_ID_H264)
1416 tag = mov_get_h264_codec_tag(s, track);
1417 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1418 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1419 if (!tag) { // if no mac fcc found, try with Microsoft tags
1420 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1422 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1423 "the file may be unplayable!\n");
1425 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1426 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1427 if (!tag) { // if no mac fcc found, try with Microsoft tags
1428 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1430 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1431 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1432 "the file may be unplayable!\n");
1435 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1436 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1442 static const AVCodecTag codec_3gp_tags[] = {
1443 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1444 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1445 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1446 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1447 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1448 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1449 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1450 { AV_CODEC_ID_NONE, 0 },
1453 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1454 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1455 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1456 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1457 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1458 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1459 { AV_CODEC_ID_NONE, 0 },
1462 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1466 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1467 tag = mp4_get_codec_tag(s, track);
1468 else if (track->mode == MODE_ISM) {
1469 tag = mp4_get_codec_tag(s, track);
1470 if (!tag && track->par->codec_id == AV_CODEC_ID_WMAPRO)
1471 tag = MKTAG('w', 'm', 'a', ' ');
1472 } else if (track->mode == MODE_IPOD)
1473 tag = ipod_get_codec_tag(s, track);
1474 else if (track->mode & MODE_3GP)
1475 tag = ff_codec_get_tag(codec_3gp_tags, track->par->codec_id);
1476 else if (track->mode == MODE_F4V)
1477 tag = ff_codec_get_tag(codec_f4v_tags, track->par->codec_id);
1479 tag = mov_get_codec_tag(s, track);
1484 /** Write uuid atom.
1485 * Needed to make file play in iPods running newest firmware
1486 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1488 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1491 ffio_wfourcc(pb, "uuid");
1492 avio_wb32(pb, 0x6b6840f2);
1493 avio_wb32(pb, 0x5f244fc5);
1494 avio_wb32(pb, 0xba39a51b);
1495 avio_wb32(pb, 0xcf0323f3);
1500 static const uint16_t fiel_data[] = {
1501 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1504 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1506 unsigned mov_field_order = 0;
1507 if (field_order < FF_ARRAY_ELEMS(fiel_data))
1508 mov_field_order = fiel_data[field_order];
1512 ffio_wfourcc(pb, "fiel");
1513 avio_wb16(pb, mov_field_order);
1517 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1519 int64_t pos = avio_tell(pb);
1520 avio_wb32(pb, 0); /* size */
1521 avio_wl32(pb, track->tag); // store it byteswapped
1522 avio_wb32(pb, 0); /* Reserved */
1523 avio_wb16(pb, 0); /* Reserved */
1524 avio_wb16(pb, 1); /* Data-reference index */
1526 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1527 mov_write_esds_tag(pb, track);
1528 else if (track->par->extradata_size)
1529 avio_write(pb, track->par->extradata, track->par->extradata_size);
1531 return update_size(pb, pos);
1534 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1537 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1538 track->par->sample_aspect_ratio.den, INT_MAX);
1541 ffio_wfourcc(pb, "pasp");
1542 avio_wb32(pb, sar.num);
1543 avio_wb32(pb, sar.den);
1547 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1552 gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1554 av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1557 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1558 av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1560 av_assert0(track->mode == MODE_MOV);
1562 ffio_wfourcc(pb, "gama");
1563 avio_wb32(pb, gama);
1567 av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1572 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1574 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1575 // Ref (MP4): ISO/IEC 14496-12:2012
1577 if (track->par->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1578 track->par->color_trc == AVCOL_TRC_UNSPECIFIED &&
1579 track->par->color_space == AVCOL_SPC_UNSPECIFIED) {
1580 if ((track->par->width >= 1920 && track->par->height >= 1080)
1581 || (track->par->width == 1280 && track->par->height == 720)) {
1582 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1583 track->par->color_primaries = AVCOL_PRI_BT709;
1584 } else if (track->par->width == 720 && track->height == 576) {
1585 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1586 track->par->color_primaries = AVCOL_PRI_BT470BG;
1587 } else if (track->par->width == 720 &&
1588 (track->height == 486 || track->height == 480)) {
1589 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1590 track->par->color_primaries = AVCOL_PRI_SMPTE170M;
1592 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1594 switch (track->par->color_primaries) {
1595 case AVCOL_PRI_BT709:
1596 track->par->color_trc = AVCOL_TRC_BT709;
1597 track->par->color_space = AVCOL_SPC_BT709;
1599 case AVCOL_PRI_SMPTE170M:
1600 case AVCOL_PRI_BT470BG:
1601 track->par->color_trc = AVCOL_TRC_BT709;
1602 track->par->color_space = AVCOL_SPC_SMPTE170M;
1607 /* We should only ever be called by MOV or MP4. */
1608 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1610 avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1611 ffio_wfourcc(pb, "colr");
1612 if (track->mode == MODE_MP4)
1613 ffio_wfourcc(pb, "nclx");
1615 ffio_wfourcc(pb, "nclc");
1616 switch (track->par->color_primaries) {
1617 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1618 case AVCOL_PRI_SMPTE170M:
1619 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1620 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1621 default: avio_wb16(pb, 2);
1623 switch (track->par->color_trc) {
1624 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1625 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1626 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1627 default: avio_wb16(pb, 2);
1629 switch (track->par->color_space) {
1630 case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1631 case AVCOL_SPC_BT470BG:
1632 case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1633 case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1634 default: avio_wb16(pb, 2);
1637 if (track->mode == MODE_MP4) {
1638 int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1639 avio_w8(pb, full_range << 7);
1646 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1648 AVDictionaryEntry *encoder;
1649 int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
1650 || (track->par->width == 1440 && track->par->height == 1080)
1651 || (track->par->width == 1920 && track->par->height == 1080);
1653 if (track->mode == MODE_MOV &&
1654 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1655 av_strlcpy(compressor_name, encoder->value, 32);
1656 } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1657 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1658 AVStream *st = track->st;
1659 int rate = av_q2d(find_fps(NULL, st));
1660 av_strlcatf(compressor_name, len, "XDCAM");
1661 if (track->par->format == AV_PIX_FMT_YUV422P) {
1662 av_strlcatf(compressor_name, len, " HD422");
1663 } else if(track->par->width == 1440) {
1664 av_strlcatf(compressor_name, len, " HD");
1666 av_strlcatf(compressor_name, len, " EX");
1668 av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
1670 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1674 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1676 int64_t pos = avio_tell(pb);
1677 char compressor_name[32] = { 0 };
1680 avio_wb32(pb, 0); /* size */
1681 if (mov->encryption_scheme != MOV_ENC_NONE) {
1682 ffio_wfourcc(pb, "encv");
1684 avio_wl32(pb, track->tag); // store it byteswapped
1686 avio_wb32(pb, 0); /* Reserved */
1687 avio_wb16(pb, 0); /* Reserved */
1688 avio_wb16(pb, 1); /* Data-reference index */
1690 avio_wb16(pb, 0); /* Codec stream version */
1691 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1692 if (track->mode == MODE_MOV) {
1693 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1694 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1695 avio_wb32(pb, 0); /* Temporal Quality */
1696 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1698 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1699 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1702 avio_wb32(pb, 0); /* Reserved */
1703 avio_wb32(pb, 0); /* Reserved */
1704 avio_wb32(pb, 0); /* Reserved */
1706 avio_wb16(pb, track->par->width); /* Video width */
1707 avio_wb16(pb, track->height); /* Video height */
1708 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1709 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1710 avio_wb32(pb, 0); /* Data size (= 0) */
1711 avio_wb16(pb, 1); /* Frame count (= 1) */
1713 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1714 find_compressor(compressor_name, 32, track);
1715 avio_w8(pb, strlen(compressor_name));
1716 avio_write(pb, compressor_name, 31);
1718 if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1719 avio_wb16(pb, track->par->bits_per_coded_sample |
1720 (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
1722 avio_wb16(pb, 0x18); /* Reserved */
1724 if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
1725 int pal_size = 1 << track->par->bits_per_coded_sample;
1727 avio_wb16(pb, 0); /* Color table ID */
1728 avio_wb32(pb, 0); /* Color table seed */
1729 avio_wb16(pb, 0x8000); /* Color table flags */
1730 avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
1731 for (i = 0; i < pal_size; i++) {
1732 uint32_t rgb = track->palette[i];
1733 uint16_t r = (rgb >> 16) & 0xff;
1734 uint16_t g = (rgb >> 8) & 0xff;
1735 uint16_t b = rgb & 0xff;
1737 avio_wb16(pb, (r << 8) | r);
1738 avio_wb16(pb, (g << 8) | g);
1739 avio_wb16(pb, (b << 8) | b);
1742 avio_wb16(pb, 0xffff); /* Reserved */
1744 if (track->tag == MKTAG('m','p','4','v'))
1745 mov_write_esds_tag(pb, track);
1746 else if (track->par->codec_id == AV_CODEC_ID_H263)
1747 mov_write_d263_tag(pb);
1748 else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
1749 track->par->codec_id == AV_CODEC_ID_SVQ3) {
1750 mov_write_extradata_tag(pb, track);
1752 } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
1753 mov_write_avid_tag(pb, track);
1755 } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1756 mov_write_hvcc_tag(pb, track);
1757 else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1758 mov_write_avcc_tag(pb, track);
1759 if (track->mode == MODE_IPOD)
1760 mov_write_uuid_tag_ipod(pb);
1761 } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1762 mov_write_dvc1_tag(pb, track);
1763 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1764 track->par->codec_id == AV_CODEC_ID_VP6A) {
1765 /* Don't write any potential extradata here - the cropping
1766 * is signalled via the normal width/height fields. */
1767 } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
1768 if (track->par->codec_tag == MKTAG('R','1','0','k'))
1769 mov_write_dpxe_tag(pb, track);
1770 } else if (track->vos_len > 0)
1771 mov_write_glbl_tag(pb, track);
1773 if (track->par->codec_id != AV_CODEC_ID_H264 &&
1774 track->par->codec_id != AV_CODEC_ID_MPEG4 &&
1775 track->par->codec_id != AV_CODEC_ID_DNXHD) {
1776 int field_order = track->par->field_order;
1778 #if FF_API_LAVF_AVCTX
1779 FF_DISABLE_DEPRECATION_WARNINGS
1780 if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
1781 field_order = track->st->codec->field_order;
1782 FF_ENABLE_DEPRECATION_WARNINGS
1785 if (field_order != AV_FIELD_UNKNOWN)
1786 mov_write_fiel_tag(pb, track, field_order);
1789 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1790 if (track->mode == MODE_MOV)
1791 mov_write_gama_tag(pb, track, mov->gamma);
1793 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1795 if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1796 if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1797 mov_write_colr_tag(pb, track);
1799 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1802 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num &&
1803 track->par->sample_aspect_ratio.den != track->par->sample_aspect_ratio.num) {
1804 mov_write_pasp_tag(pb, track);
1807 if (mov->encryption_scheme != MOV_ENC_NONE) {
1808 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1811 /* extra padding for avid stsd */
1812 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1816 return update_size(pb, pos);
1819 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1821 int64_t pos = avio_tell(pb);
1822 avio_wb32(pb, 0); /* size */
1823 ffio_wfourcc(pb, "rtp ");
1824 avio_wb32(pb, 0); /* Reserved */
1825 avio_wb16(pb, 0); /* Reserved */
1826 avio_wb16(pb, 1); /* Data-reference index */
1828 avio_wb16(pb, 1); /* Hint track version */
1829 avio_wb16(pb, 1); /* Highest compatible version */
1830 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1832 avio_wb32(pb, 12); /* size */
1833 ffio_wfourcc(pb, "tims");
1834 avio_wb32(pb, track->timescale);
1836 return update_size(pb, pos);
1839 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1841 uint64_t str_size =strlen(reel_name);
1842 int64_t pos = avio_tell(pb);
1844 if (str_size >= UINT16_MAX){
1845 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1847 return AVERROR(EINVAL);
1850 avio_wb32(pb, 0); /* size */
1851 ffio_wfourcc(pb, "name"); /* Data format */
1852 avio_wb16(pb, str_size); /* string size */
1853 avio_wb16(pb, track->language); /* langcode */
1854 avio_write(pb, reel_name, str_size); /* reel name */
1855 return update_size(pb,pos);
1858 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1860 int64_t pos = avio_tell(pb);
1864 AVDictionaryEntry *t = NULL;
1866 if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
1867 #if FF_API_LAVF_AVCTX
1868 FF_DISABLE_DEPRECATION_WARNINGS
1869 frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
1870 nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
1871 FF_ENABLE_DEPRECATION_WARNINGS
1873 av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
1874 return AVERROR(EINVAL);
1877 frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
1878 nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
1881 if (nb_frames > 255) {
1882 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1883 return AVERROR(EINVAL);
1886 avio_wb32(pb, 0); /* size */
1887 ffio_wfourcc(pb, "tmcd"); /* Data format */
1888 avio_wb32(pb, 0); /* Reserved */
1889 avio_wb32(pb, 1); /* Data reference index */
1890 avio_wb32(pb, 0); /* Flags */
1891 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1892 avio_wb32(pb, track->timescale); /* Timescale */
1893 avio_wb32(pb, frame_duration); /* Frame duration */
1894 avio_w8(pb, nb_frames); /* Number of frames */
1895 avio_w8(pb, 0); /* Reserved */
1898 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1900 if (t && utf8len(t->value) && track->mode != MODE_MP4)
1901 mov_write_source_reference_tag(pb, track, t->value);
1903 avio_wb16(pb, 0); /* zero size */
1906 avio_wb32(pb, 0); /* size */
1907 ffio_wfourcc(pb, "tmcd"); /* Data format */
1908 avio_wb32(pb, 0); /* Reserved */
1909 avio_wb32(pb, 1); /* Data reference index */
1910 if (track->par->extradata_size)
1911 avio_write(pb, track->par->extradata, track->par->extradata_size);
1913 return update_size(pb, pos);
1916 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1918 int64_t pos = avio_tell(pb);
1919 avio_wb32(pb, 0); /* size */
1920 ffio_wfourcc(pb, "stsd");
1921 avio_wb32(pb, 0); /* version & flags */
1922 avio_wb32(pb, 1); /* entry count */
1923 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1924 mov_write_video_tag(pb, mov, track);
1925 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1926 mov_write_audio_tag(s, pb, mov, track);
1927 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1928 mov_write_subtitle_tag(pb, track);
1929 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1930 mov_write_rtp_tag(pb, track);
1931 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1932 mov_write_tmcd_tag(pb, track);
1933 return update_size(pb, pos);
1936 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1938 MOVStts *ctts_entries;
1939 uint32_t entries = 0;
1943 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1945 return AVERROR(ENOMEM);
1946 ctts_entries[0].count = 1;
1947 ctts_entries[0].duration = track->cluster[0].cts;
1948 for (i = 1; i < track->entry; i++) {
1949 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1950 ctts_entries[entries].count++; /* compress */
1953 ctts_entries[entries].duration = track->cluster[i].cts;
1954 ctts_entries[entries].count = 1;
1957 entries++; /* last one */
1958 atom_size = 16 + (entries * 8);
1959 avio_wb32(pb, atom_size); /* size */
1960 ffio_wfourcc(pb, "ctts");
1961 avio_wb32(pb, 0); /* version & flags */
1962 avio_wb32(pb, entries); /* entry count */
1963 for (i = 0; i < entries; i++) {
1964 avio_wb32(pb, ctts_entries[i].count);
1965 avio_wb32(pb, ctts_entries[i].duration);
1967 av_free(ctts_entries);
1971 /* Time to sample atom */
1972 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1974 MOVStts *stts_entries = NULL;
1975 uint32_t entries = -1;
1979 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1980 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1982 return AVERROR(ENOMEM);
1983 stts_entries[0].count = track->sample_count;
1984 stts_entries[0].duration = 1;
1988 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1990 return AVERROR(ENOMEM);
1992 for (i = 0; i < track->entry; i++) {
1993 int duration = get_cluster_duration(track, i);
1994 if (i && duration == stts_entries[entries].duration) {
1995 stts_entries[entries].count++; /* compress */
1998 stts_entries[entries].duration = duration;
1999 stts_entries[entries].count = 1;
2002 entries++; /* last one */
2004 atom_size = 16 + (entries * 8);
2005 avio_wb32(pb, atom_size); /* size */
2006 ffio_wfourcc(pb, "stts");
2007 avio_wb32(pb, 0); /* version & flags */
2008 avio_wb32(pb, entries); /* entry count */
2009 for (i = 0; i < entries; i++) {
2010 avio_wb32(pb, stts_entries[i].count);
2011 avio_wb32(pb, stts_entries[i].duration);
2013 av_free(stts_entries);
2017 static int mov_write_dref_tag(AVIOContext *pb)
2019 avio_wb32(pb, 28); /* size */
2020 ffio_wfourcc(pb, "dref");
2021 avio_wb32(pb, 0); /* version & flags */
2022 avio_wb32(pb, 1); /* entry count */
2024 avio_wb32(pb, 0xc); /* size */
2025 //FIXME add the alis and rsrc atom
2026 ffio_wfourcc(pb, "url ");
2027 avio_wb32(pb, 1); /* version & flags */
2032 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2034 int64_t pos = avio_tell(pb);
2037 avio_wb32(pb, 0); /* size */
2038 ffio_wfourcc(pb, "stbl");
2039 mov_write_stsd_tag(s, pb, mov, track);
2040 mov_write_stts_tag(pb, track);
2041 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2042 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2043 track->has_keyframes && track->has_keyframes < track->entry)
2044 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2045 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2046 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2047 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2048 track->flags & MOV_TRACK_CTTS && track->entry) {
2050 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
2053 mov_write_stsc_tag(pb, track);
2054 mov_write_stsz_tag(pb, track);
2055 mov_write_stco_tag(pb, track);
2056 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
2057 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2059 return update_size(pb, pos);
2062 static int mov_write_dinf_tag(AVIOContext *pb)
2064 int64_t pos = avio_tell(pb);
2065 avio_wb32(pb, 0); /* size */
2066 ffio_wfourcc(pb, "dinf");
2067 mov_write_dref_tag(pb);
2068 return update_size(pb, pos);
2071 static int mov_write_nmhd_tag(AVIOContext *pb)
2074 ffio_wfourcc(pb, "nmhd");
2079 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2081 int64_t pos = avio_tell(pb);
2082 const char *font = "Lucida Grande";
2083 avio_wb32(pb, 0); /* size */
2084 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2085 avio_wb32(pb, 0); /* version & flags */
2086 avio_wb16(pb, 0); /* text font */
2087 avio_wb16(pb, 0); /* text face */
2088 avio_wb16(pb, 12); /* text size */
2089 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2090 avio_wb16(pb, 0x0000); /* text color (red) */
2091 avio_wb16(pb, 0x0000); /* text color (green) */
2092 avio_wb16(pb, 0x0000); /* text color (blue) */
2093 avio_wb16(pb, 0xffff); /* background color (red) */
2094 avio_wb16(pb, 0xffff); /* background color (green) */
2095 avio_wb16(pb, 0xffff); /* background color (blue) */
2096 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2097 avio_write(pb, font, strlen(font)); /* font name */
2098 return update_size(pb, pos);
2101 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2103 int64_t pos = avio_tell(pb);
2104 avio_wb32(pb, 0); /* size */
2105 ffio_wfourcc(pb, "gmhd");
2106 avio_wb32(pb, 0x18); /* gmin size */
2107 ffio_wfourcc(pb, "gmin");/* generic media info */
2108 avio_wb32(pb, 0); /* version & flags */
2109 avio_wb16(pb, 0x40); /* graphics mode = */
2110 avio_wb16(pb, 0x8000); /* opColor (r?) */
2111 avio_wb16(pb, 0x8000); /* opColor (g?) */
2112 avio_wb16(pb, 0x8000); /* opColor (b?) */
2113 avio_wb16(pb, 0); /* balance */
2114 avio_wb16(pb, 0); /* reserved */
2117 * This special text atom is required for
2118 * Apple Quicktime chapters. The contents
2119 * don't appear to be documented, so the
2120 * bytes are copied verbatim.
2122 if (track->tag != MKTAG('c','6','0','8')) {
2123 avio_wb32(pb, 0x2C); /* size */
2124 ffio_wfourcc(pb, "text");
2125 avio_wb16(pb, 0x01);
2126 avio_wb32(pb, 0x00);
2127 avio_wb32(pb, 0x00);
2128 avio_wb32(pb, 0x00);
2129 avio_wb32(pb, 0x01);
2130 avio_wb32(pb, 0x00);
2131 avio_wb32(pb, 0x00);
2132 avio_wb32(pb, 0x00);
2133 avio_wb32(pb, 0x00004000);
2134 avio_wb16(pb, 0x0000);
2137 if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2138 int64_t tmcd_pos = avio_tell(pb);
2139 avio_wb32(pb, 0); /* size */
2140 ffio_wfourcc(pb, "tmcd");
2141 mov_write_tcmi_tag(pb, track);
2142 update_size(pb, tmcd_pos);
2144 return update_size(pb, pos);
2147 static int mov_write_smhd_tag(AVIOContext *pb)
2149 avio_wb32(pb, 16); /* size */
2150 ffio_wfourcc(pb, "smhd");
2151 avio_wb32(pb, 0); /* version & flags */
2152 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2153 avio_wb16(pb, 0); /* reserved */
2157 static int mov_write_vmhd_tag(AVIOContext *pb)
2159 avio_wb32(pb, 0x14); /* size (always 0x14) */
2160 ffio_wfourcc(pb, "vmhd");
2161 avio_wb32(pb, 0x01); /* version & flags */
2162 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2166 static int is_clcp_track(MOVTrack *track)
2168 return track->tag == MKTAG('c','7','0','8') ||
2169 track->tag == MKTAG('c','6','0','8');
2172 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2174 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2175 int64_t pos = avio_tell(pb);
2179 descr = "DataHandler";
2182 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2183 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2185 descr = "VideoHandler";
2186 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2188 descr = "SoundHandler";
2189 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2190 if (is_clcp_track(track)) {
2192 descr = "ClosedCaptionHandler";
2194 if (track->tag == MKTAG('t','x','3','g')) {
2196 } else if (track->tag == MKTAG('m','p','4','s')) {
2201 descr = "SubtitleHandler";
2203 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2205 descr = "HintHandler";
2206 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2208 descr = "TimeCodeHandler";
2211 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2212 track->par->codec_tag);
2214 av_log(s, AV_LOG_WARNING,
2215 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2216 tag_buf, track->par->codec_tag);
2219 // hdlr.name is used by some players to identify the content title
2220 // of the track. So if an alternate handler description is
2221 // specified, use it.
2222 AVDictionaryEntry *t;
2223 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2224 if (t && utf8len(t->value))
2229 avio_wb32(pb, 0); /* size */
2230 ffio_wfourcc(pb, "hdlr");
2231 avio_wb32(pb, 0); /* Version & flags */
2232 avio_write(pb, hdlr, 4); /* handler */
2233 ffio_wfourcc(pb, hdlr_type); /* handler type */
2234 avio_wb32(pb, 0); /* reserved */
2235 avio_wb32(pb, 0); /* reserved */
2236 avio_wb32(pb, 0); /* reserved */
2237 if (!track || track->mode == MODE_MOV)
2238 avio_w8(pb, strlen(descr)); /* pascal string */
2239 avio_write(pb, descr, strlen(descr)); /* handler description */
2240 if (track && track->mode != MODE_MOV)
2241 avio_w8(pb, 0); /* c string */
2242 return update_size(pb, pos);
2245 static int mov_write_hmhd_tag(AVIOContext *pb)
2247 /* This atom must be present, but leaving the values at zero
2248 * seems harmless. */
2249 avio_wb32(pb, 28); /* size */
2250 ffio_wfourcc(pb, "hmhd");
2251 avio_wb32(pb, 0); /* version, flags */
2252 avio_wb16(pb, 0); /* maxPDUsize */
2253 avio_wb16(pb, 0); /* avgPDUsize */
2254 avio_wb32(pb, 0); /* maxbitrate */
2255 avio_wb32(pb, 0); /* avgbitrate */
2256 avio_wb32(pb, 0); /* reserved */
2260 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2262 int64_t pos = avio_tell(pb);
2265 avio_wb32(pb, 0); /* size */
2266 ffio_wfourcc(pb, "minf");
2267 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2268 mov_write_vmhd_tag(pb);
2269 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2270 mov_write_smhd_tag(pb);
2271 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2272 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2273 mov_write_gmhd_tag(pb, track);
2275 mov_write_nmhd_tag(pb);
2277 } else if (track->tag == MKTAG('r','t','p',' ')) {
2278 mov_write_hmhd_tag(pb);
2279 } else if (track->tag == MKTAG('t','m','c','d')) {
2280 if (track->mode == MODE_MP4)
2281 mov_write_nmhd_tag(pb);
2283 mov_write_gmhd_tag(pb, track);
2285 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2286 mov_write_hdlr_tag(s, pb, NULL);
2287 mov_write_dinf_tag(pb);
2288 if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2290 return update_size(pb, pos);
2293 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2296 int version = track->track_duration < INT32_MAX ? 0 : 1;
2298 if (track->mode == MODE_ISM)
2301 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2302 ffio_wfourcc(pb, "mdhd");
2303 avio_w8(pb, version);
2304 avio_wb24(pb, 0); /* flags */
2306 avio_wb64(pb, track->time);
2307 avio_wb64(pb, track->time);
2309 avio_wb32(pb, track->time); /* creation time */
2310 avio_wb32(pb, track->time); /* modification time */
2312 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2313 if (!track->entry && mov->mode == MODE_ISM)
2314 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2315 else if (!track->entry)
2316 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2318 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2319 avio_wb16(pb, track->language); /* language */
2320 avio_wb16(pb, 0); /* reserved (quality) */
2322 if (version != 0 && track->mode == MODE_MOV) {
2323 av_log(NULL, AV_LOG_ERROR,
2324 "FATAL error, file duration too long for timebase, this file will not be\n"
2325 "playable with quicktime. Choose a different timebase or a different\n"
2326 "container format\n");
2332 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2333 MOVMuxContext *mov, MOVTrack *track)
2335 int64_t pos = avio_tell(pb);
2338 avio_wb32(pb, 0); /* size */
2339 ffio_wfourcc(pb, "mdia");
2340 mov_write_mdhd_tag(pb, mov, track);
2341 mov_write_hdlr_tag(s, pb, track);
2342 if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2344 return update_size(pb, pos);
2347 /* transformation matrix
2351 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2352 int16_t d, int16_t tx, int16_t ty)
2354 avio_wb32(pb, a << 16); /* 16.16 format */
2355 avio_wb32(pb, b << 16); /* 16.16 format */
2356 avio_wb32(pb, 0); /* u in 2.30 format */
2357 avio_wb32(pb, c << 16); /* 16.16 format */
2358 avio_wb32(pb, d << 16); /* 16.16 format */
2359 avio_wb32(pb, 0); /* v in 2.30 format */
2360 avio_wb32(pb, tx << 16); /* 16.16 format */
2361 avio_wb32(pb, ty << 16); /* 16.16 format */
2362 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2365 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2366 MOVTrack *track, AVStream *st)
2368 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2369 track->timescale, AV_ROUND_UP);
2370 int version = duration < INT32_MAX ? 0 : 1;
2371 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2375 uint32_t *display_matrix = NULL;
2376 int display_matrix_size, i;
2379 if (mov->per_stream_grouping)
2382 group = st->codecpar->codec_type;
2384 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2385 &display_matrix_size);
2386 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2387 display_matrix = NULL;
2390 if (track->flags & MOV_TRACK_ENABLED)
2391 flags |= MOV_TKHD_FLAG_ENABLED;
2393 if (track->mode == MODE_ISM)
2396 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2397 ffio_wfourcc(pb, "tkhd");
2398 avio_w8(pb, version);
2399 avio_wb24(pb, flags);
2401 avio_wb64(pb, track->time);
2402 avio_wb64(pb, track->time);
2404 avio_wb32(pb, track->time); /* creation time */
2405 avio_wb32(pb, track->time); /* modification time */
2407 avio_wb32(pb, track->track_id); /* track-id */
2408 avio_wb32(pb, 0); /* reserved */
2409 if (!track->entry && mov->mode == MODE_ISM)
2410 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2411 else if (!track->entry)
2412 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2414 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2416 avio_wb32(pb, 0); /* reserved */
2417 avio_wb32(pb, 0); /* reserved */
2418 avio_wb16(pb, 0); /* layer */
2419 avio_wb16(pb, group); /* alternate group) */
2420 /* Volume, only for audio */
2421 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2422 avio_wb16(pb, 0x0100);
2425 avio_wb16(pb, 0); /* reserved */
2427 /* Matrix structure */
2428 if (st && st->metadata) {
2429 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2430 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2432 if (display_matrix) {
2433 for (i = 0; i < 9; i++)
2434 avio_wb32(pb, display_matrix[i]);
2435 } else if (rotation == 90) {
2436 write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2437 } else if (rotation == 180) {
2438 write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2439 } else if (rotation == 270) {
2440 write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2442 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2444 /* Track width and height, for visual only */
2445 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2446 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2447 int64_t track_width_1616;
2448 if (track->mode == MODE_MOV) {
2449 track_width_1616 = track->par->width * 0x10000ULL;
2451 track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2452 track->par->width * 0x10000LL,
2453 st->sample_aspect_ratio.den);
2454 if (!track_width_1616 ||
2455 track->height != track->par->height ||
2456 track_width_1616 > UINT32_MAX)
2457 track_width_1616 = track->par->width * 0x10000ULL;
2459 if (track_width_1616 > UINT32_MAX) {
2460 av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
2461 track_width_1616 = 0;
2463 avio_wb32(pb, track_width_1616);
2464 if (track->height > 0xFFFF) {
2465 av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
2468 avio_wb32(pb, track->height * 0x10000U);
2476 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2478 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
2479 track->par->sample_aspect_ratio.den);
2481 int64_t pos = avio_tell(pb);
2483 avio_wb32(pb, 0); /* size */
2484 ffio_wfourcc(pb, "tapt");
2487 ffio_wfourcc(pb, "clef");
2489 avio_wb32(pb, width << 16);
2490 avio_wb32(pb, track->par->height << 16);
2493 ffio_wfourcc(pb, "prof");
2495 avio_wb32(pb, width << 16);
2496 avio_wb32(pb, track->par->height << 16);
2499 ffio_wfourcc(pb, "enof");
2501 avio_wb32(pb, track->par->width << 16);
2502 avio_wb32(pb, track->par->height << 16);
2504 return update_size(pb, pos);
2507 // This box seems important for the psp playback ... without it the movie seems to hang
2508 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2511 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2512 track->timescale, AV_ROUND_UP);
2513 int version = duration < INT32_MAX ? 0 : 1;
2514 int entry_size, entry_count, size;
2515 int64_t delay, start_ct = track->start_cts;
2516 int64_t start_dts = track->start_dts;
2519 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2521 av_log(mov->fc, AV_LOG_DEBUG,
2522 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2523 track->cluster[0].dts, track->cluster[0].cts,
2524 start_dts, start_ct, track->track_id);
2525 start_dts = track->cluster[0].dts;
2526 start_ct = track->cluster[0].cts;
2530 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2531 track->timescale, AV_ROUND_DOWN);
2532 version |= delay < INT32_MAX ? 0 : 1;
2534 entry_size = (version == 1) ? 20 : 12;
2535 entry_count = 1 + (delay > 0);
2536 size = 24 + entry_count * entry_size;
2538 /* write the atom data */
2539 avio_wb32(pb, size);
2540 ffio_wfourcc(pb, "edts");
2541 avio_wb32(pb, size - 8);
2542 ffio_wfourcc(pb, "elst");
2543 avio_w8(pb, version);
2544 avio_wb24(pb, 0); /* flags */
2546 avio_wb32(pb, entry_count);
2547 if (delay > 0) { /* add an empty edit to delay presentation */
2548 /* In the positive delay case, the delay includes the cts
2549 * offset, and the second edit list entry below trims out
2550 * the same amount from the actual content. This makes sure
2551 * that the offsetted last sample is included in the edit
2552 * list duration as well. */
2554 avio_wb64(pb, delay);
2557 avio_wb32(pb, delay);
2560 avio_wb32(pb, 0x00010000);
2562 /* Avoid accidentally ending up with start_ct = -1 which has got a
2563 * special meaning. Normally start_ct should end up positive or zero
2564 * here, but use FFMIN in case dts is a small positive integer
2565 * rounded to 0 when represented in MOV_TIMESCALE units. */
2566 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2567 start_ct = -FFMIN(start_dts, 0);
2568 /* Note, this delay is calculated from the pts of the first sample,
2569 * ensuring that we don't reduce the duration for cases with
2574 /* For fragmented files, we don't know the full length yet. Setting
2575 * duration to 0 allows us to only specify the offset, including
2576 * the rest of the content (from all future fragments) without specifying
2577 * an explicit duration. */
2578 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2583 avio_wb64(pb, duration);
2584 avio_wb64(pb, start_ct);
2586 avio_wb32(pb, duration);
2587 avio_wb32(pb, start_ct);
2589 avio_wb32(pb, 0x00010000);
2593 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2595 avio_wb32(pb, 20); // size
2596 ffio_wfourcc(pb, "tref");
2597 avio_wb32(pb, 12); // size (subatom)
2598 avio_wl32(pb, track->tref_tag);
2599 avio_wb32(pb, track->tref_id);
2603 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2604 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2606 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2607 ffio_wfourcc(pb, "uuid");
2608 ffio_wfourcc(pb, "USMT");
2609 avio_wb32(pb, 0x21d24fce);
2610 avio_wb32(pb, 0xbb88695c);
2611 avio_wb32(pb, 0xfac9c740);
2612 avio_wb32(pb, 0x1c); // another size here!
2613 ffio_wfourcc(pb, "MTDT");
2614 avio_wb32(pb, 0x00010012);
2615 avio_wb32(pb, 0x0a);
2616 avio_wb32(pb, 0x55c40000);
2622 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2624 AVFormatContext *ctx = track->rtp_ctx;
2625 char buf[1000] = "";
2628 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2629 NULL, NULL, 0, 0, ctx);
2630 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2633 avio_wb32(pb, len + 24);
2634 ffio_wfourcc(pb, "udta");
2635 avio_wb32(pb, len + 16);
2636 ffio_wfourcc(pb, "hnti");
2637 avio_wb32(pb, len + 8);
2638 ffio_wfourcc(pb, "sdp ");
2639 avio_write(pb, buf, len);
2643 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2644 const char *tag, const char *str)
2646 int64_t pos = avio_tell(pb);
2647 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2648 if (!t || !utf8len(t->value))
2651 avio_wb32(pb, 0); /* size */
2652 ffio_wfourcc(pb, tag); /* type */
2653 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2654 return update_size(pb, pos);
2657 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2660 AVIOContext *pb_buf;
2667 ret = avio_open_dyn_buf(&pb_buf);
2671 if (mov->mode & MODE_MP4)
2672 mov_write_track_metadata(pb_buf, st, "name", "title");
2674 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2675 avio_wb32(pb, size + 8);
2676 ffio_wfourcc(pb, "udta");
2677 avio_write(pb, buf, size);
2684 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
2685 MOVTrack *track, AVStream *st)
2687 int64_t pos = avio_tell(pb);
2688 int entry_backup = track->entry;
2689 int chunk_backup = track->chunkCount;
2692 /* If we want to have an empty moov, but some samples already have been
2693 * buffered (delay_moov), pretend that no samples have been written yet. */
2694 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2695 track->chunkCount = track->entry = 0;
2697 avio_wb32(pb, 0); /* size */
2698 ffio_wfourcc(pb, "trak");
2699 mov_write_tkhd_tag(pb, mov, track, st);
2701 av_assert2(mov->use_editlist >= 0);
2703 if (track->start_dts != AV_NOPTS_VALUE) {
2704 if (mov->use_editlist)
2705 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2706 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2707 av_log(mov->fc, AV_LOG_WARNING,
2708 "Not writing any edit list even though one would have been required\n");
2711 if (track->tref_tag)
2712 mov_write_tref_tag(pb, track);
2714 if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
2716 if (track->mode == MODE_PSP)
2717 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2718 if (track->tag == MKTAG('r','t','p',' '))
2719 mov_write_udta_sdp(pb, track);
2720 if (track->mode == MODE_MOV) {
2721 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2722 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2723 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2724 mov_write_tapt_tag(pb, track);
2727 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2728 mov_write_tapt_tag(pb, track);
2731 mov_write_track_udta_tag(pb, mov, st);
2732 track->entry = entry_backup;
2733 track->chunkCount = chunk_backup;
2734 return update_size(pb, pos);
2737 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2739 int i, has_audio = 0, has_video = 0;
2740 int64_t pos = avio_tell(pb);
2741 int audio_profile = mov->iods_audio_profile;
2742 int video_profile = mov->iods_video_profile;
2743 for (i = 0; i < mov->nb_streams; i++) {
2744 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2745 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
2746 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
2749 if (audio_profile < 0)
2750 audio_profile = 0xFF - has_audio;
2751 if (video_profile < 0)
2752 video_profile = 0xFF - has_video;
2753 avio_wb32(pb, 0x0); /* size */
2754 ffio_wfourcc(pb, "iods");
2755 avio_wb32(pb, 0); /* version & flags */
2756 put_descr(pb, 0x10, 7);
2757 avio_wb16(pb, 0x004f);
2760 avio_w8(pb, audio_profile);
2761 avio_w8(pb, video_profile);
2763 return update_size(pb, pos);
2766 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2768 avio_wb32(pb, 0x20); /* size */
2769 ffio_wfourcc(pb, "trex");
2770 avio_wb32(pb, 0); /* version & flags */
2771 avio_wb32(pb, track->track_id); /* track ID */
2772 avio_wb32(pb, 1); /* default sample description index */
2773 avio_wb32(pb, 0); /* default sample duration */
2774 avio_wb32(pb, 0); /* default sample size */
2775 avio_wb32(pb, 0); /* default sample flags */
2779 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2781 int64_t pos = avio_tell(pb);
2783 avio_wb32(pb, 0x0); /* size */
2784 ffio_wfourcc(pb, "mvex");
2785 for (i = 0; i < mov->nb_streams; i++)
2786 mov_write_trex_tag(pb, &mov->tracks[i]);
2787 return update_size(pb, pos);
2790 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2792 int max_track_id = 1, i;
2793 int64_t max_track_len = 0;
2796 for (i = 0; i < mov->nb_streams; i++) {
2797 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2798 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2800 mov->tracks[i].timescale,
2802 if (max_track_len < max_track_len_temp)
2803 max_track_len = max_track_len_temp;
2804 if (max_track_id < mov->tracks[i].track_id)
2805 max_track_id = mov->tracks[i].track_id;
2808 /* If using delay_moov, make sure the output is the same as if no
2809 * samples had been written yet. */
2810 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2815 version = max_track_len < UINT32_MAX ? 0 : 1;
2816 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2818 ffio_wfourcc(pb, "mvhd");
2819 avio_w8(pb, version);
2820 avio_wb24(pb, 0); /* flags */
2822 avio_wb64(pb, mov->time);
2823 avio_wb64(pb, mov->time);
2825 avio_wb32(pb, mov->time); /* creation time */
2826 avio_wb32(pb, mov->time); /* modification time */
2828 avio_wb32(pb, MOV_TIMESCALE);
2829 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2831 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2832 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2833 avio_wb16(pb, 0); /* reserved */
2834 avio_wb32(pb, 0); /* reserved */
2835 avio_wb32(pb, 0); /* reserved */
2837 /* Matrix structure */
2838 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2840 avio_wb32(pb, 0); /* reserved (preview time) */
2841 avio_wb32(pb, 0); /* reserved (preview duration) */
2842 avio_wb32(pb, 0); /* reserved (poster time) */
2843 avio_wb32(pb, 0); /* reserved (selection time) */
2844 avio_wb32(pb, 0); /* reserved (selection duration) */
2845 avio_wb32(pb, 0); /* reserved (current time) */
2846 avio_wb32(pb, max_track_id + 1); /* Next track id */
2850 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2853 avio_wb32(pb, 33); /* size */
2854 ffio_wfourcc(pb, "hdlr");
2857 ffio_wfourcc(pb, "mdir");
2858 ffio_wfourcc(pb, "appl");
2865 /* helper function to write a data tag with the specified string as data */
2866 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2869 int size = 16 + strlen(data);
2870 avio_wb32(pb, size); /* size */
2871 ffio_wfourcc(pb, "data");
2874 avio_write(pb, data, strlen(data));
2878 lang = ff_mov_iso639_to_lang("und", 1);
2879 avio_wb16(pb, strlen(data)); /* string length */
2880 avio_wb16(pb, lang);
2881 avio_write(pb, data, strlen(data));
2882 return strlen(data) + 4;
2886 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2887 const char *value, int lang, int long_style)
2890 if (value && value[0]) {
2891 int64_t pos = avio_tell(pb);
2892 avio_wb32(pb, 0); /* size */
2893 ffio_wfourcc(pb, name);
2894 mov_write_string_data_tag(pb, value, lang, long_style);
2895 size = update_size(pb, pos);
2900 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2901 const char *name, const char *tag,
2904 int l, lang = 0, len, len2;
2905 AVDictionaryEntry *t, *t2 = NULL;
2908 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2911 len = strlen(t->key);
2912 snprintf(tag2, sizeof(tag2), "%s-", tag);
2913 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2914 len2 = strlen(t2->key);
2915 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2916 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2921 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2924 /* iTunes bpm number */
2925 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2927 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2928 int size = 0, tmpo = t ? atoi(t->value) : 0;
2931 avio_wb32(pb, size);
2932 ffio_wfourcc(pb, "tmpo");
2933 avio_wb32(pb, size-8); /* size */
2934 ffio_wfourcc(pb, "data");
2935 avio_wb32(pb, 0x15); //type specifier
2937 avio_wb16(pb, tmpo); // data
2942 /* iTunes track or disc number */
2943 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2944 AVFormatContext *s, int disc)
2946 AVDictionaryEntry *t = av_dict_get(s->metadata,
2947 disc ? "disc" : "track",
2949 int size = 0, track = t ? atoi(t->value) : 0;
2952 char *slash = strchr(t->value, '/');
2954 tracks = atoi(slash + 1);
2955 avio_wb32(pb, 32); /* size */
2956 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2957 avio_wb32(pb, 24); /* size */
2958 ffio_wfourcc(pb, "data");
2959 avio_wb32(pb, 0); // 8 bytes empty
2961 avio_wb16(pb, 0); // empty
2962 avio_wb16(pb, track); // track / disc number
2963 avio_wb16(pb, tracks); // total track / disc number
2964 avio_wb16(pb, 0); // empty
2970 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2971 const char *name, const char *tag,
2974 AVDictionaryEntry *t = NULL;
2976 int size = 24 + len;
2978 if (len != 1 && len != 4)
2981 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2983 num = atoi(t->value);
2985 avio_wb32(pb, size);
2986 ffio_wfourcc(pb, name);
2987 avio_wb32(pb, size - 8);
2988 ffio_wfourcc(pb, "data");
2989 avio_wb32(pb, 0x15);
2991 if (len==4) avio_wb32(pb, num);
2992 else avio_w8 (pb, num);
2997 /* iTunes meta data list */
2998 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3001 int64_t pos = avio_tell(pb);
3002 avio_wb32(pb, 0); /* size */
3003 ffio_wfourcc(pb, "ilst");
3004 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3005 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3006 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3007 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3008 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3009 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3010 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3011 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3012 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3014 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3015 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3016 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
3017 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3018 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3019 mov_write_string_metadata(s, pb, "desc", "description",1);
3020 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3021 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3022 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3023 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3024 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3025 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3026 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3027 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3028 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3029 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3030 mov_write_trkn_tag(pb, mov, s, 0); // track number
3031 mov_write_trkn_tag(pb, mov, s, 1); // disc number
3032 mov_write_tmpo_tag(pb, s);
3033 return update_size(pb, pos);
3036 /* iTunes meta data tag */
3037 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3041 int64_t pos = avio_tell(pb);
3042 avio_wb32(pb, 0); /* size */
3043 ffio_wfourcc(pb, "meta");
3045 mov_write_itunes_hdlr_tag(pb, mov, s);
3046 mov_write_ilst_tag(pb, mov, s);
3047 size = update_size(pb, pos);
3051 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3052 const char *name, const char *key)
3055 AVDictionaryEntry *t;
3057 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3060 len = strlen(t->value);
3063 avio_wb32(pb, size);
3064 ffio_wfourcc(pb, name);
3065 avio_write(pb, t->value, len);
3071 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3075 GET_UTF8(val, *b++, return -1;)
3078 avio_wb16(pb, 0x00);
3082 static uint16_t language_code(const char *str)
3084 return (((str[0] - 0x60) & 0x1F) << 10) +
3085 (((str[1] - 0x60) & 0x1F) << 5) +
3086 (( str[2] - 0x60) & 0x1F);
3089 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3090 const char *tag, const char *str)
3092 int64_t pos = avio_tell(pb);
3093 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3094 if (!t || !utf8len(t->value))
3096 avio_wb32(pb, 0); /* size */
3097 ffio_wfourcc(pb, tag); /* type */
3098 avio_wb32(pb, 0); /* version + flags */
3099 if (!strcmp(tag, "yrrc"))
3100 avio_wb16(pb, atoi(t->value));
3102 avio_wb16(pb, language_code("eng")); /* language */
3103 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3104 if (!strcmp(tag, "albm") &&
3105 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3106 avio_w8(pb, atoi(t->value));
3108 return update_size(pb, pos);
3111 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3113 int64_t pos = avio_tell(pb);
3114 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3116 avio_wb32(pb, 0); // size
3117 ffio_wfourcc(pb, "chpl");
3118 avio_wb32(pb, 0x01000000); // version + flags
3119 avio_wb32(pb, 0); // unknown
3120 avio_w8(pb, nb_chapters);
3122 for (i = 0; i < nb_chapters; i++) {
3123 AVChapter *c = s->chapters[i];
3124 AVDictionaryEntry *t;
3125 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3127 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3128 int len = FFMIN(strlen(t->value), 255);
3130 avio_write(pb, t->value, len);
3134 return update_size(pb, pos);
3137 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3140 AVIOContext *pb_buf;
3144 ret = avio_open_dyn_buf(&pb_buf);
3148 if (mov->mode & MODE_3GP) {
3149 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3150 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3151 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3152 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3153 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3154 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3155 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3156 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3157 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3158 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3159 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3160 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3161 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3162 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3163 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3164 // currently ignored by mov.c
3165 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3166 // add support for libquicktime, this atom is also actually read by mov.c
3167 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3168 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3169 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3170 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3171 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3172 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3173 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3175 /* iTunes meta data */
3176 mov_write_meta_tag(pb_buf, mov, s);
3179 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3180 mov_write_chpl_tag(pb_buf, s);
3182 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3183 avio_wb32(pb, size + 8);
3184 ffio_wfourcc(pb, "udta");
3185 avio_write(pb, buf, size);
3192 static void mov_write_psp_udta_tag(AVIOContext *pb,
3193 const char *str, const char *lang, int type)
3195 int len = utf8len(str) + 1;
3198 avio_wb16(pb, len * 2 + 10); /* size */
3199 avio_wb32(pb, type); /* type */
3200 avio_wb16(pb, language_code(lang)); /* language */
3201 avio_wb16(pb, 0x01); /* ? */
3202 ascii_to_wc(pb, str);
3205 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3207 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3211 pos = avio_tell(pb);
3212 avio_wb32(pb, 0); /* size placeholder*/
3213 ffio_wfourcc(pb, "uuid");
3214 ffio_wfourcc(pb, "USMT");
3215 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3216 avio_wb32(pb, 0xbb88695c);
3217 avio_wb32(pb, 0xfac9c740);
3219 pos2 = avio_tell(pb);
3220 avio_wb32(pb, 0); /* size placeholder*/
3221 ffio_wfourcc(pb, "MTDT");
3225 avio_wb16(pb, 0x0C); /* size */
3226 avio_wb32(pb, 0x0B); /* type */
3227 avio_wb16(pb, language_code("und")); /* language */
3228 avio_wb16(pb, 0x0); /* ? */
3229 avio_wb16(pb, 0x021C); /* data */
3231 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3232 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3233 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3234 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3236 update_size(pb, pos2);
3237 return update_size(pb, pos);
3243 static void build_chunks(MOVTrack *trk)
3246 MOVIentry *chunk = &trk->cluster[0];
3247 uint64_t chunkSize = chunk->size;
3248 chunk->chunkNum = 1;
3249 if (trk->chunkCount)
3251 trk->chunkCount = 1;
3252 for (i = 1; i<trk->entry; i++){
3253 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3254 chunkSize + trk->cluster[i].size < (1<<20)){
3255 chunkSize += trk->cluster[i].size;
3256 chunk->samples_in_chunk += trk->cluster[i].entries;
3258 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3259 chunk=&trk->cluster[i];
3260 chunkSize = chunk->size;
3266 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3270 int64_t pos = avio_tell(pb);
3271 avio_wb32(pb, 0); /* size placeholder*/
3272 ffio_wfourcc(pb, "moov");
3274 for (i = 0; i < mov->nb_streams; i++) {
3275 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3278 mov->tracks[i].time = mov->time;
3279 mov->tracks[i].track_id = i + 1;
3281 if (mov->tracks[i].entry)
3282 build_chunks(&mov->tracks[i]);
3285 if (mov->chapter_track)
3286 for (i = 0; i < s->nb_streams; i++) {
3287 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3288 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3290 for (i = 0; i < mov->nb_streams; i++) {
3291 MOVTrack *track = &mov->tracks[i];
3292 if (track->tag == MKTAG('r','t','p',' ')) {
3293 track->tref_tag = MKTAG('h','i','n','t');
3294 track->tref_id = mov->tracks[track->src_track].track_id;
3295 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3296 int * fallback, size;
3297 fallback = (int*)av_stream_get_side_data(track->st,
3298 AV_PKT_DATA_FALLBACK_TRACK,
3300 if (fallback != NULL && size == sizeof(int)) {
3301 if (*fallback >= 0 && *fallback < mov->nb_streams) {
3302 track->tref_tag = MKTAG('f','a','l','l');
3303 track->tref_id = mov->tracks[*fallback].track_id;
3308 for (i = 0; i < mov->nb_streams; i++) {
3309 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3310 int src_trk = mov->tracks[i].src_track;
3311 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3312 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3313 //src_trk may have a different timescale than the tmcd track
3314 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3315 mov->tracks[i].timescale,
3316 mov->tracks[src_trk].timescale);
3320 mov_write_mvhd_tag(pb, mov);
3321 if (mov->mode != MODE_MOV && !mov->iods_skip)
3322 mov_write_iods_tag(pb, mov);
3323 for (i = 0; i < mov->nb_streams; i++) {
3324 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3325 int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3330 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3331 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3333 if (mov->mode == MODE_PSP)
3334 mov_write_uuidusmt_tag(pb, s);
3336 mov_write_udta_tag(pb, mov, s);
3338 return update_size(pb, pos);
3341 static void param_write_int(AVIOContext *pb, const char *name, int value)
3343 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3346 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3348 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3351 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3354 len = FFMIN(sizeof(buf) / 2 - 1, len);
3355 ff_data_to_hex(buf, value, len, 0);
3356 buf[2 * len] = '\0';
3357 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3360 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3362 int64_t pos = avio_tell(pb);
3364 static const uint8_t uuid[] = {
3365 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3366 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3370 ffio_wfourcc(pb, "uuid");
3371 avio_write(pb, uuid, sizeof(uuid));
3374 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3375 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3376 avio_printf(pb, "<head>\n");
3377 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3378 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3380 avio_printf(pb, "</head>\n");
3381 avio_printf(pb, "<body>\n");
3382 avio_printf(pb, "<switch>\n");
3383 for (i = 0; i < mov->nb_streams; i++) {
3384 MOVTrack *track = &mov->tracks[i];
3386 /* track->track_id is initialized in write_moov, and thus isn't known
3388 int track_id = i + 1;
3390 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3392 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3397 avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3398 (int64_t)track->par->bit_rate);
3399 param_write_int(pb, "systemBitrate", track->par->bit_rate);
3400 param_write_int(pb, "trackID", track_id);
3401 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3402 if (track->par->codec_id == AV_CODEC_ID_H264) {
3404 int size = track->par->extradata_size;
3405 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
3407 param_write_hex(pb, "CodecPrivateData",
3408 ptr ? ptr : track->par->extradata,
3412 param_write_string(pb, "FourCC", "H264");
3413 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
3414 param_write_string(pb, "FourCC", "WVC1");
3415 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3416 track->par->extradata_size);
3418 param_write_int(pb, "MaxWidth", track->par->width);
3419 param_write_int(pb, "MaxHeight", track->par->height);
3420 param_write_int(pb, "DisplayWidth", track->par->width);
3421 param_write_int(pb, "DisplayHeight", track->par->height);
3423 if (track->par->codec_id == AV_CODEC_ID_AAC) {
3424 switch (track->par->profile)
3426 case FF_PROFILE_AAC_HE_V2:
3427 param_write_string(pb, "FourCC", "AACP");
3429 case FF_PROFILE_AAC_HE:
3430 param_write_string(pb, "FourCC", "AACH");
3433 param_write_string(pb, "FourCC", "AACL");
3435 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
3436 param_write_string(pb, "FourCC", "WMAP");
3438 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3439 track->par->extradata_size);
3440 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3441 track->par->codec_id));
3442 param_write_int(pb, "Channels", track->par->channels);
3443 param_write_int(pb, "SamplingRate", track->par->sample_rate);
3444 param_write_int(pb, "BitsPerSample", 16);
3445 param_write_int(pb, "PacketSize", track->par->block_align ?
3446 track->par->block_align : 4);
3448 avio_printf(pb, "</%s>\n", type);
3450 avio_printf(pb, "</switch>\n");
3451 avio_printf(pb, "</body>\n");
3452 avio_printf(pb, "</smil>\n");
3454 return update_size(pb, pos);
3457 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3460 ffio_wfourcc(pb, "mfhd");
3462 avio_wb32(pb, mov->fragments);
3466 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3468 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3469 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3472 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3473 MOVTrack *track, int64_t moof_offset)
3475 int64_t pos = avio_tell(pb);
3476 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3477 MOV_TFHD_BASE_DATA_OFFSET;
3478 if (!track->entry) {
3479 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3481 flags |= MOV_TFHD_DEFAULT_FLAGS;
3483 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3484 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3485 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3486 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3487 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3490 /* Don't set a default sample size, the silverlight player refuses
3491 * to play files with that set. Don't set a default sample duration,
3492 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3493 * file format says it MUST NOT be set. */
3494 if (track->mode == MODE_ISM)
3495 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3496 MOV_TFHD_BASE_DATA_OFFSET);
3498 avio_wb32(pb, 0); /* size placeholder */
3499 ffio_wfourcc(pb, "tfhd");
3500 avio_w8(pb, 0); /* version */
3501 avio_wb24(pb, flags);
3503 avio_wb32(pb, track->track_id); /* track-id */
3504 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3505 avio_wb64(pb, moof_offset);
3506 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3507 track->default_duration = get_cluster_duration(track, 0);
3508 avio_wb32(pb, track->default_duration);
3510 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3511 track->default_size = track->entry ? track->cluster[0].size : 1;
3512 avio_wb32(pb, track->default_size);
3514 track->default_size = -1;
3516 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3517 /* Set the default flags based on the second sample, if available.
3518 * If the first sample is different, that can be signaled via a separate field. */
3519 if (track->entry > 1)
3520 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3522 track->default_sample_flags =
3523 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
3524 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3525 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3526 avio_wb32(pb, track->default_sample_flags);
3529 return update_size(pb, pos);
3532 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3533 MOVTrack *track, int moof_size,
3536 int64_t pos = avio_tell(pb);
3537 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3540 for (i = first; i < end; i++) {
3541 if (get_cluster_duration(track, i) != track->default_duration)
3542 flags |= MOV_TRUN_SAMPLE_DURATION;
3543 if (track->cluster[i].size != track->default_size)
3544 flags |= MOV_TRUN_SAMPLE_SIZE;
3545 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3546 flags |= MOV_TRUN_SAMPLE_FLAGS;
3548 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3549 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3550 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3551 if (track->flags & MOV_TRACK_CTTS)
3552 flags |= MOV_TRUN_SAMPLE_CTS;
3554 avio_wb32(pb, 0); /* size placeholder */
3555 ffio_wfourcc(pb, "trun");
3556 avio_w8(pb, 0); /* version */
3557 avio_wb24(pb, flags);
3559 avio_wb32(pb, end - first); /* sample count */
3560 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3561 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3563 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3565 avio_wb32(pb, moof_size + 8 + track->data_offset +
3566 track->cluster[first].pos); /* data offset */
3567 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3568 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3570 for (i = first; i < end; i++) {
3571 if (flags & MOV_TRUN_SAMPLE_DURATION)
3572 avio_wb32(pb, get_cluster_duration(track, i));
3573 if (flags & MOV_TRUN_SAMPLE_SIZE)
3574 avio_wb32(pb, track->cluster[i].size);
3575 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3576 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3577 if (flags & MOV_TRUN_SAMPLE_CTS)
3578 avio_wb32(pb, track->cluster[i].cts);
3581 mov->first_trun = 0;
3582 return update_size(pb, pos);
3585 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3587 int64_t pos = avio_tell(pb);
3588 static const uint8_t uuid[] = {
3589 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3590 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3593 avio_wb32(pb, 0); /* size placeholder */
3594 ffio_wfourcc(pb, "uuid");
3595 avio_write(pb, uuid, sizeof(uuid));
3598 avio_wb64(pb, track->start_dts + track->frag_start +
3599 track->cluster[0].cts);
3600 avio_wb64(pb, track->end_pts -
3601 (track->cluster[0].dts + track->cluster[0].cts));
3603 return update_size(pb, pos);
3606 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3607 MOVTrack *track, int entry)
3609 int n = track->nb_frag_info - 1 - entry, i;
3610 int size = 8 + 16 + 4 + 1 + 16*n;
3611 static const uint8_t uuid[] = {
3612 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3613 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3619 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3620 avio_wb32(pb, size);
3621 ffio_wfourcc(pb, "uuid");
3622 avio_write(pb, uuid, sizeof(uuid));
3626 for (i = 0; i < n; i++) {
3627 int index = entry + 1 + i;
3628 avio_wb64(pb, track->frag_info[index].time);
3629 avio_wb64(pb, track->frag_info[index].duration);
3631 if (n < mov->ism_lookahead) {
3632 int free_size = 16 * (mov->ism_lookahead - n);
3633 avio_wb32(pb, free_size);
3634 ffio_wfourcc(pb, "free");
3635 ffio_fill(pb, 0, free_size - 8);
3641 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3644 int64_t pos = avio_tell(pb);
3646 for (i = 0; i < mov->ism_lookahead; i++) {
3647 /* Update the tfrf tag for the last ism_lookahead fragments,
3648 * nb_frag_info - 1 is the next fragment to be written. */
3649 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3651 avio_seek(pb, pos, SEEK_SET);
3655 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3659 for (i = 0; i < mov->nb_streams; i++) {
3660 MOVTrack *track = &mov->tracks[i];
3661 MOVFragmentInfo *info;
3662 if ((tracks >= 0 && i != tracks) || !track->entry)
3664 track->nb_frag_info++;
3665 if (track->nb_frag_info >= track->frag_info_capacity) {
3666 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3667 if (av_reallocp_array(&track->frag_info,
3669 sizeof(*track->frag_info)))
3670 return AVERROR(ENOMEM);
3671 track->frag_info_capacity = new_capacity;
3673 info = &track->frag_info[track->nb_frag_info - 1];
3674 info->offset = avio_tell(pb);
3676 // Try to recreate the original pts for the first packet
3677 // from the fields we have stored
3678 info->time = track->start_dts + track->frag_start +
3679 track->cluster[0].cts;
3680 info->duration = track->end_pts -
3681 (track->cluster[0].dts + track->cluster[0].cts);
3682 // If the pts is less than zero, we will have trimmed
3683 // away parts of the media track using an edit list,
3684 // and the corresponding start presentation time is zero.
3685 if (info->time < 0) {
3686 info->duration += info->time;
3689 info->tfrf_offset = 0;
3690 mov_write_tfrf_tags(pb, mov, track);
3695 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3697 int64_t pos = avio_tell(pb);
3699 avio_wb32(pb, 0); /* size */
3700 ffio_wfourcc(pb, "tfdt");
3701 avio_w8(pb, 1); /* version */
3703 avio_wb64(pb, track->frag_start);
3704 return update_size(pb, pos);
3707 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3708 MOVTrack *track, int64_t moof_offset,
3711 int64_t pos = avio_tell(pb);
3713 avio_wb32(pb, 0); /* size placeholder */
3714 ffio_wfourcc(pb, "traf");
3716 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3717 if (mov->mode != MODE_ISM)
3718 mov_write_tfdt_tag(pb, track);
3719 for (i = 1; i < track->entry; i++) {
3720 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3721 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3725 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3726 if (mov->mode == MODE_ISM) {
3727 mov_write_tfxd_tag(pb, track);
3729 if (mov->ism_lookahead) {
3730 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3732 if (track->nb_frag_info > 0) {
3733 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3734 if (!info->tfrf_offset)
3735 info->tfrf_offset = avio_tell(pb);
3737 avio_wb32(pb, 8 + size);
3738 ffio_wfourcc(pb, "free");
3739 for (i = 0; i < size; i++)
3744 return update_size(pb, pos);
3747 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3748 int tracks, int moof_size)
3750 int64_t pos = avio_tell(pb);
3753 avio_wb32(pb, 0); /* size placeholder */
3754 ffio_wfourcc(pb, "moof");
3755 mov->first_trun = 1;
3757 mov_write_mfhd_tag(pb, mov);
3758 for (i = 0; i < mov->nb_streams; i++) {
3759 MOVTrack *track = &mov->tracks[i];
3760 if (tracks >= 0 && i != tracks)
3764 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3767 return update_size(pb, pos);
3770 static int mov_write_sidx_tag(AVIOContext *pb,
3771 MOVTrack *track, int ref_size, int total_sidx_size)
3773 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3774 int64_t presentation_time, duration, offset;
3775 int starts_with_SAP, i, entries;
3779 presentation_time = track->start_dts + track->frag_start +
3780 track->cluster[0].cts;
3781 duration = track->end_pts -
3782 (track->cluster[0].dts + track->cluster[0].cts);
3783 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3785 // pts<0 should be cut away using edts
3786 if (presentation_time < 0) {
3787 duration += presentation_time;
3788 presentation_time = 0;
3791 entries = track->nb_frag_info;
3794 presentation_time = track->frag_info[0].time;
3797 avio_wb32(pb, 0); /* size */
3798 ffio_wfourcc(pb, "sidx");
3799 avio_w8(pb, 1); /* version */
3801 avio_wb32(pb, track->track_id); /* reference_ID */
3802 avio_wb32(pb, track->timescale); /* timescale */
3803 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3804 offset_pos = avio_tell(pb);
3805 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3806 avio_wb16(pb, 0); /* reserved */
3808 avio_wb16(pb, entries); /* reference_count */
3809 for (i = 0; i < entries; i++) {
3810 if (!track->entry) {
3811 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3812 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3814 duration = track->frag_info[i].duration;
3815 ref_size = track->frag_info[i].size;
3816 starts_with_SAP = 1;
3818 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3819 avio_wb32(pb, duration); /* subsegment_duration */
3820 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3823 end_pos = avio_tell(pb);
3824 offset = pos + total_sidx_size - end_pos;
3825 avio_seek(pb, offset_pos, SEEK_SET);
3826 avio_wb64(pb, offset);
3827 avio_seek(pb, end_pos, SEEK_SET);
3828 return update_size(pb, pos);
3831 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3832 int tracks, int ref_size)
3835 AVIOContext *avio_buf;
3837 for (round = 0; round < 2; round++) {
3838 // First run one round to calculate the total size of all
3840 // This would be much simpler if we'd only write one sidx
3841 // atom, for the first track in the moof.
3843 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3848 for (i = 0; i < mov->nb_streams; i++) {
3849 MOVTrack *track = &mov->tracks[i];
3850 if (tracks >= 0 && i != tracks)
3852 // When writing a sidx for the full file, entry is 0, but
3853 // we want to include all tracks. ref_size is 0 in this case,
3854 // since we read it from frag_info instead.
3855 if (!track->entry && ref_size > 0)
3857 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3861 total_size = ffio_close_null_buf(avio_buf);
3866 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3869 AVIOContext *avio_buf;
3872 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3874 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3875 moof_size = ffio_close_null_buf(avio_buf);
3877 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3878 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3880 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3883 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3886 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3888 int64_t pos = avio_tell(pb);
3891 avio_wb32(pb, 0); /* size placeholder */
3892 ffio_wfourcc(pb, "tfra");
3893 avio_w8(pb, 1); /* version */
3896 avio_wb32(pb, track->track_id);
3897 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3898 avio_wb32(pb, track->nb_frag_info);
3899 for (i = 0; i < track->nb_frag_info; i++) {
3900 avio_wb64(pb, track->frag_info[i].time);
3901 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3902 avio_w8(pb, 1); /* traf number */
3903 avio_w8(pb, 1); /* trun number */
3904 avio_w8(pb, 1); /* sample number */
3907 return update_size(pb, pos);
3910 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3912 int64_t pos = avio_tell(pb);
3915 avio_wb32(pb, 0); /* size placeholder */
3916 ffio_wfourcc(pb, "mfra");
3917 /* An empty mfra atom is enough to indicate to the publishing point that
3918 * the stream has ended. */
3919 if (mov->flags & FF_MOV_FLAG_ISML)
3920 return update_size(pb, pos);
3922 for (i = 0; i < mov->nb_streams; i++) {
3923 MOVTrack *track = &mov->tracks[i];
3924 if (track->nb_frag_info)
3925 mov_write_tfra_tag(pb, track);
3929 ffio_wfourcc(pb, "mfro");
3930 avio_wb32(pb, 0); /* version + flags */
3931 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3933 return update_size(pb, pos);
3936 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3938 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3939 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3941 mov->mdat_pos = avio_tell(pb);
3942 avio_wb32(pb, 0); /* size placeholder*/
3943 ffio_wfourcc(pb, "mdat");
3947 /* TODO: This needs to be more general */
3948 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3950 MOVMuxContext *mov = s->priv_data;
3951 int64_t pos = avio_tell(pb);
3952 int has_h264 = 0, has_video = 0;
3956 for (i = 0; i < s->nb_streams; i++) {
3957 AVStream *st = s->streams[i];
3958 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
3960 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
3964 avio_wb32(pb, 0); /* size */
3965 ffio_wfourcc(pb, "ftyp");
3967 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3968 ffio_wfourcc(pb, mov->major_brand);
3969 else if (mov->mode == MODE_3GP) {
3970 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3971 minor = has_h264 ? 0x100 : 0x200;
3972 } else if (mov->mode & MODE_3G2) {
3973 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3974 minor = has_h264 ? 0x20000 : 0x10000;
3975 } else if (mov->mode == MODE_PSP)
3976 ffio_wfourcc(pb, "MSNV");
3977 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3978 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3979 else if (mov->mode == MODE_MP4)
3980 ffio_wfourcc(pb, "isom");
3981 else if (mov->mode == MODE_IPOD)
3982 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3983 else if (mov->mode == MODE_ISM)
3984 ffio_wfourcc(pb, "isml");
3985 else if (mov->mode == MODE_F4V)
3986 ffio_wfourcc(pb, "f4v ");
3988 ffio_wfourcc(pb, "qt ");
3990 avio_wb32(pb, minor);
3992 if (mov->mode == MODE_MOV)
3993 ffio_wfourcc(pb, "qt ");
3994 else if (mov->mode == MODE_ISM) {
3995 ffio_wfourcc(pb, "piff");
3996 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3997 ffio_wfourcc(pb, "isom");
3998 ffio_wfourcc(pb, "iso2");
4000 ffio_wfourcc(pb, "avc1");
4003 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
4004 // brand. This is compatible with users that don't understand tfdt.
4005 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
4006 ffio_wfourcc(pb, "iso6");
4008 if (mov->mode == MODE_3GP)
4009 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
4010 else if (mov->mode & MODE_3G2)
4011 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
4012 else if (mov->mode == MODE_PSP)
4013 ffio_wfourcc(pb, "MSNV");
4014 else if (mov->mode == MODE_MP4)
4015 ffio_wfourcc(pb, "mp41");
4017 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4018 ffio_wfourcc(pb, "dash");
4020 return update_size(pb, pos);
4023 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
4025 AVStream *video_st = s->streams[0];
4026 AVCodecParameters *video_par = s->streams[0]->codecpar;
4027 AVCodecParameters *audio_par = s->streams[1]->codecpar;
4028 int audio_rate = audio_par->sample_rate;
4029 // TODO: should be avg_frame_rate
4030 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
4031 int audio_kbitrate = audio_par->bit_rate / 1000;
4032 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
4034 avio_wb32(pb, 0x94); /* size */
4035 ffio_wfourcc(pb, "uuid");
4036 ffio_wfourcc(pb, "PROF");
4038 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4039 avio_wb32(pb, 0xbb88695c);
4040 avio_wb32(pb, 0xfac9c740);
4042 avio_wb32(pb, 0x0); /* ? */
4043 avio_wb32(pb, 0x3); /* 3 sections ? */
4045 avio_wb32(pb, 0x14); /* size */
4046 ffio_wfourcc(pb, "FPRF");
4047 avio_wb32(pb, 0x0); /* ? */
4048 avio_wb32(pb, 0x0); /* ? */
4049 avio_wb32(pb, 0x0); /* ? */
4051 avio_wb32(pb, 0x2c); /* size */
4052 ffio_wfourcc(pb, "APRF"); /* audio */
4054 avio_wb32(pb, 0x2); /* TrackID */
4055 ffio_wfourcc(pb, "mp4a");
4056 avio_wb32(pb, 0x20f);
4058 avio_wb32(pb, audio_kbitrate);
4059 avio_wb32(pb, audio_kbitrate);
4060 avio_wb32(pb, audio_rate);
4061 avio_wb32(pb, audio_par->channels);
4063 avio_wb32(pb, 0x34); /* size */
4064 ffio_wfourcc(pb, "VPRF"); /* video */
4066 avio_wb32(pb, 0x1); /* TrackID */
4067 if (video_par->codec_id == AV_CODEC_ID_H264) {
4068 ffio_wfourcc(pb, "avc1");
4069 avio_wb16(pb, 0x014D);
4070 avio_wb16(pb, 0x0015);
4072 ffio_wfourcc(pb, "mp4v");
4073 avio_wb16(pb, 0x0000);
4074 avio_wb16(pb, 0x0103);
4077 avio_wb32(pb, video_kbitrate);
4078 avio_wb32(pb, video_kbitrate);
4079 avio_wb32(pb, frame_rate);
4080 avio_wb32(pb, frame_rate);
4081 avio_wb16(pb, video_par->width);
4082 avio_wb16(pb, video_par->height);
4083 avio_wb32(pb, 0x010001); /* ? */
4086 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
4088 MOVMuxContext *mov = s->priv_data;
4091 mov_write_ftyp_tag(pb,s);
4092 if (mov->mode == MODE_PSP) {
4093 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4094 for (i = 0; i < s->nb_streams; i++) {
4095 AVStream *st = s->streams[i];
4096 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4098 else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
4104 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4105 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4106 return AVERROR(EINVAL);
4108 mov_write_uuidprof_tag(pb, s);
4113 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4116 int i, closed_gop = 0;
4118 for (i = 0; i < pkt->size - 4; i++) {
4119 c = (c << 8) + pkt->data[i];
4120 if (c == 0x1b8) { // gop
4121 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4122 } else if (c == 0x100) { // pic
4123 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4124 if (!temp_ref || closed_gop) // I picture is not reordered
4125 *flags = MOV_SYNC_SAMPLE;
4127 *flags = MOV_PARTIAL_SYNC_SAMPLE;
4134 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4136 const uint8_t *start, *next, *end = pkt->data + pkt->size;
4137 int seq = 0, entry = 0;
4138 int key = pkt->flags & AV_PKT_FLAG_KEY;
4139 start = find_next_marker(pkt->data, end);
4140 for (next = start; next < end; start = next) {
4141 next = find_next_marker(start + 4, end);
4142 switch (AV_RB32(start)) {
4143 case VC1_CODE_SEQHDR:
4146 case VC1_CODE_ENTRYPOINT:
4149 case VC1_CODE_SLICE:
4150 trk->vc1_info.slices = 1;
4154 if (!trk->entry && trk->vc1_info.first_packet_seen)
4155 trk->vc1_info.first_frag_written = 1;
4156 if (!trk->entry && !trk->vc1_info.first_frag_written) {
4157 /* First packet in first fragment */
4158 trk->vc1_info.first_packet_seq = seq;
4159 trk->vc1_info.first_packet_entry = entry;
4160 trk->vc1_info.first_packet_seen = 1;
4161 } else if ((seq && !trk->vc1_info.packet_seq) ||
4162 (entry && !trk->vc1_info.packet_entry)) {
4164 for (i = 0; i < trk->entry; i++)
4165 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4166 trk->has_keyframes = 0;
4168 trk->vc1_info.packet_seq = 1;
4170 trk->vc1_info.packet_entry = 1;
4171 if (!trk->vc1_info.first_frag_written) {
4172 /* First fragment */
4173 if ((!seq || trk->vc1_info.first_packet_seq) &&
4174 (!entry || trk->vc1_info.first_packet_entry)) {
4175 /* First packet had the same headers as this one, readd the
4176 * sync sample flag. */
4177 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4178 trk->has_keyframes = 1;
4182 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4184 else if (trk->vc1_info.packet_seq)
4186 else if (trk->vc1_info.packet_entry)
4189 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4190 trk->has_keyframes++;
4194 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4196 MOVMuxContext *mov = s->priv_data;
4201 if (!track->mdat_buf)
4203 if (!mov->mdat_buf) {
4204 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4207 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4208 track->mdat_buf = NULL;
4210 offset = avio_tell(mov->mdat_buf);
4211 avio_write(mov->mdat_buf, buf, buf_size);
4214 for (i = track->entries_flushed; i < track->entry; i++)
4215 track->cluster[i].pos += offset;
4216 track->entries_flushed = track->entry;
4220 static int mov_flush_fragment(AVFormatContext *s, int force)
4222 MOVMuxContext *mov = s->priv_data;
4223 int i, first_track = -1;
4224 int64_t mdat_size = 0;
4227 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4230 for (i = 0; i < mov->nb_streams; i++) {
4231 MOVTrack *track = &mov->tracks[i];
4232 if (track->entry <= 1)
4234 // Sample durations are calculated as the diff of dts values,
4235 // but for the last sample in a fragment, we don't know the dts
4236 // of the first sample in the next fragment, so we have to rely
4237 // on what was set as duration in the AVPacket. Not all callers
4238 // set this though, so we might want to replace it with an
4239 // estimate if it currently is zero.
4240 if (get_cluster_duration(track, track->entry - 1) != 0)
4242 // Use the duration (i.e. dts diff) of the second last sample for
4243 // the last one. This is a wild guess (and fatal if it turns out
4244 // to be too long), but probably the best we can do - having a zero
4245 // duration is bad as well.
4246 track->track_duration += get_cluster_duration(track, track->entry - 2);
4247 track->end_pts += get_cluster_duration(track, track->entry - 2);
4248 if (!mov->missing_duration_warned) {
4249 av_log(s, AV_LOG_WARNING,
4250 "Estimating the duration of the last packet in a "
4251 "fragment, consider setting the duration field in "
4252 "AVPacket instead.\n");
4253 mov->missing_duration_warned = 1;
4257 if (!mov->moov_written) {
4258 int64_t pos = avio_tell(s->pb);
4260 int buf_size, moov_size;
4262 for (i = 0; i < mov->nb_streams; i++)
4263 if (!mov->tracks[i].entry)
4265 /* Don't write the initial moov unless all tracks have data */
4266 if (i < mov->nb_streams && !force)
4269 moov_size = get_moov_size(s);
4270 for (i = 0; i < mov->nb_streams; i++)
4271 mov->tracks[i].data_offset = pos + moov_size + 8;
4273 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4274 mov_write_identification(s->pb, s);
4275 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4278 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4279 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4280 mov->reserved_header_pos = avio_tell(s->pb);
4282 mov->moov_written = 1;
4286 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4287 mov->mdat_buf = NULL;
4288 avio_wb32(s->pb, buf_size + 8);
4289 ffio_wfourcc(s->pb, "mdat");
4290 avio_write(s->pb, buf, buf_size);
4293 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4294 mov->reserved_header_pos = avio_tell(s->pb);
4296 mov->moov_written = 1;
4298 for (i = 0; i < mov->nb_streams; i++) {
4299 if (mov->tracks[i].entry)
4300 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4301 mov->tracks[i].track_duration -
4302 mov->tracks[i].cluster[0].dts;
4303 mov->tracks[i].entry = 0;
4309 if (mov->frag_interleave) {
4310 for (i = 0; i < mov->nb_streams; i++) {
4311 MOVTrack *track = &mov->tracks[i];
4313 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4319 mdat_size = avio_tell(mov->mdat_buf);
4322 for (i = 0; i < mov->nb_streams; i++) {
4323 MOVTrack *track = &mov->tracks[i];
4324 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4325 track->data_offset = 0;
4327 track->data_offset = mdat_size;
4330 if (track->mdat_buf)
4331 mdat_size += avio_tell(track->mdat_buf);
4332 if (first_track < 0)
4339 for (i = 0; i < mov->nb_streams; i++) {
4340 MOVTrack *track = &mov->tracks[i];
4341 int buf_size, write_moof = 1, moof_tracks = -1;
4343 int64_t duration = 0;
4346 duration = track->start_dts + track->track_duration -
4347 track->cluster[0].dts;
4348 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4349 if (!track->mdat_buf)
4351 mdat_size = avio_tell(track->mdat_buf);
4354 write_moof = i == first_track;
4360 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4363 avio_wb32(s->pb, mdat_size + 8);
4364 ffio_wfourcc(s->pb, "mdat");
4368 track->frag_start += duration;
4370 track->entries_flushed = 0;
4371 if (!mov->frag_interleave) {
4372 if (!track->mdat_buf)
4374 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4375 track->mdat_buf = NULL;
4379 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4380 mov->mdat_buf = NULL;
4383 avio_write(s->pb, buf, buf_size);
4393 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
4395 MOVMuxContext *mov = s->priv_data;
4396 int had_moov = mov->moov_written;
4397 int ret = mov_flush_fragment(s, force);
4400 // If using delay_moov, the first flush only wrote the moov,
4401 // not the actual moof+mdat pair, thus flush once again.
4402 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4403 ret = mov_flush_fragment(s, force);
4407 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4409 MOVMuxContext *mov = s->priv_data;
4410 AVIOContext *pb = s->pb;
4411 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4412 AVCodecParameters *par = trk->par;
4413 unsigned int samples_in_chunk = 0;
4414 int size = pkt->size, ret = 0;
4415 uint8_t *reformatted_data = NULL;
4418 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4419 if (duration < 0 || duration > INT_MAX) {
4420 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4424 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4425 pkt->pts = AV_NOPTS_VALUE;
4428 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
4429 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
4430 return AVERROR(EINVAL);
4432 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4434 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4435 if (mov->frag_interleave && mov->fragments > 0) {
4436 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4437 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4442 if (!trk->mdat_buf) {
4443 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4448 if (!mov->mdat_buf) {
4449 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4456 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
4457 /* We must find out how many AMR blocks there are in one packet */
4458 static const uint16_t packed_size[16] =
4459 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4462 while (len < size && samples_in_chunk < 100) {
4463 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4466 if (samples_in_chunk > 1) {
4467 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4470 } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
4471 par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4472 samples_in_chunk = trk->par->frame_size;
4473 } else if (trk->sample_size)
4474 samples_in_chunk = size / trk->sample_size;
4476 samples_in_chunk = 1;
4478 /* copy extradata if it exists */
4479 if (trk->vos_len == 0 && par->extradata_size > 0 &&
4480 !TAG_IS_AVCI(trk->tag) &&
4481 (par->codec_id != AV_CODEC_ID_DNXHD)) {
4482 trk->vos_len = par->extradata_size;
4483 trk->vos_data = av_malloc(trk->vos_len);
4484 if (!trk->vos_data) {
4485 ret = AVERROR(ENOMEM);
4488 memcpy(trk->vos_data, par->extradata, trk->vos_len);
4491 if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4492 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4493 if (!s->streams[pkt->stream_index]->nb_frames) {
4494 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4495 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4496 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4499 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4501 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4502 /* from x264 or from bytestream h264 */
4503 /* nal reformating needed */
4504 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4505 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4507 avio_write(pb, reformatted_data, size);
4509 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4510 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
4516 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4519 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4520 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4521 /* extradata is Annex B, assume the bitstream is too and convert it */
4522 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4523 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4524 avio_write(pb, reformatted_data, size);
4526 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4528 #if CONFIG_AC3_PARSER
4529 } else if (par->codec_id == AV_CODEC_ID_EAC3) {
4530 size = handle_eac3(mov, pkt, trk);
4535 avio_write(pb, pkt->data, size);
4538 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4539 if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
4540 int nal_size_length = (par->extradata[4] & 0x3) + 1;
4541 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
4543 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
4550 avio_write(pb, pkt->data, size);
4554 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
4555 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4556 /* copy frame to create needed atoms */
4557 trk->vos_len = size;
4558 trk->vos_data = av_malloc(size);
4559 if (!trk->vos_data) {
4560 ret = AVERROR(ENOMEM);
4563 memcpy(trk->vos_data, pkt->data, size);
4566 if (trk->entry >= trk->cluster_capacity) {
4567 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4568 if (av_reallocp_array(&trk->cluster, new_capacity,
4569 sizeof(*trk->cluster))) {
4570 ret = AVERROR(ENOMEM);
4573 trk->cluster_capacity = new_capacity;
4576 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4577 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4578 trk->cluster[trk->entry].chunkNum = 0;
4579 trk->cluster[trk->entry].size = size;
4580 trk->cluster[trk->entry].entries = samples_in_chunk;
4581 trk->cluster[trk->entry].dts = pkt->dts;
4582 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4583 if (!trk->frag_discont) {
4584 /* First packet of a new fragment. We already wrote the duration
4585 * of the last packet of the previous fragment based on track_duration,
4586 * which might not exactly match our dts. Therefore adjust the dts
4587 * of this packet to be what the previous packets duration implies. */
4588 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4589 /* We also may have written the pts and the corresponding duration
4590 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
4591 * the next fragment. This means the cts of the first sample must
4592 * be the same in all fragments, unless end_pts was updated by
4593 * the packet causing the fragment to be written. */
4594 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
4595 mov->mode == MODE_ISM)
4596 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
4598 /* New fragment, but discontinuous from previous fragments.
4599 * Pretend the duration sum of the earlier fragments is
4600 * pkt->dts - trk->start_dts. */
4601 trk->frag_start = pkt->dts - trk->start_dts;
4602 trk->end_pts = AV_NOPTS_VALUE;
4603 trk->frag_discont = 0;
4607 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4608 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4609 /* Not using edit lists and shifting the first track to start from zero.
4610 * If the other streams start from a later timestamp, we won't be able
4611 * to signal the difference in starting time without an edit list.
4612 * Thus move the timestamp for this first sample to 0, increasing
4613 * its duration instead. */
4614 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4616 if (trk->start_dts == AV_NOPTS_VALUE) {
4617 trk->start_dts = pkt->dts;
4618 if (trk->frag_discont) {
4619 if (mov->use_editlist) {
4620 /* Pretend the whole stream started at pts=0, with earlier fragments
4621 * already written. If the stream started at pts=0, the duration sum
4622 * of earlier fragments would have been pkt->pts. */
4623 trk->frag_start = pkt->pts;
4624 trk->start_dts = pkt->dts - pkt->pts;
4626 /* Pretend the whole stream started at dts=0, with earlier fragments
4627 * already written, with a duration summing up to pkt->dts. */
4628 trk->frag_start = pkt->dts;
4631 trk->frag_discont = 0;
4632 } else if (pkt->dts && mov->moov_written)
4633 av_log(s, AV_LOG_WARNING,
4634 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4635 "already has been written. Set the delay_moov flag to handle "
4637 pkt->stream_index, pkt->dts);
4639 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4640 trk->last_sample_is_subtitle_end = 0;
4642 if (pkt->pts == AV_NOPTS_VALUE) {
4643 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4644 pkt->pts = pkt->dts;
4646 if (pkt->dts != pkt->pts)
4647 trk->flags |= MOV_TRACK_CTTS;
4648 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4649 trk->cluster[trk->entry].flags = 0;
4650 if (trk->start_cts == AV_NOPTS_VALUE)
4651 trk->start_cts = pkt->pts - pkt->dts;
4652 if (trk->end_pts == AV_NOPTS_VALUE)
4653 trk->end_pts = trk->cluster[trk->entry].dts +
4654 trk->cluster[trk->entry].cts + pkt->duration;
4656 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
4657 trk->cluster[trk->entry].cts +
4660 if (par->codec_id == AV_CODEC_ID_VC1) {
4661 mov_parse_vc1_frame(pkt, trk);
4662 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4663 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4664 trk->entry > 0) { // force sync sample for the first key frame
4665 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4666 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4667 trk->flags |= MOV_TRACK_STPS;
4669 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4671 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4672 trk->has_keyframes++;
4675 trk->sample_count += samples_in_chunk;
4676 mov->mdat_size += size;
4678 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4679 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4680 reformatted_data, size);
4685 av_free(reformatted_data);
4689 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4691 MOVMuxContext *mov = s->priv_data;
4692 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4693 AVCodecParameters *par = trk->par;
4694 int64_t frag_duration = 0;
4695 int size = pkt->size;
4697 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4699 for (i = 0; i < s->nb_streams; i++)
4700 mov->tracks[i].frag_discont = 1;
4701 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4705 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
4706 trk->start_dts = pkt->dts;
4707 if (pkt->pts != AV_NOPTS_VALUE)
4708 trk->start_cts = pkt->pts - pkt->dts;
4713 return 0; /* Discard 0 sized packets */
4716 if (trk->entry && pkt->stream_index < s->nb_streams)
4717 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4718 s->streams[pkt->stream_index]->time_base,
4720 if ((mov->max_fragment_duration &&
4721 frag_duration >= mov->max_fragment_duration) ||
4722 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4723 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4724 par->codec_type == AVMEDIA_TYPE_VIDEO &&
4725 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4726 if (frag_duration >= mov->min_fragment_duration) {
4727 // Set the duration of this track to line up with the next
4728 // sample in this track. This avoids relying on AVPacket
4729 // duration, but only helps for this particular track, not
4730 // for the other ones that are flushed at the same time.
4731 trk->track_duration = pkt->dts - trk->start_dts;
4732 if (pkt->pts != AV_NOPTS_VALUE)
4733 trk->end_pts = pkt->pts;
4735 trk->end_pts = pkt->dts;
4736 mov_auto_flush_fragment(s, 0);
4740 return ff_mov_write_packet(s, pkt);
4743 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4747 uint8_t data[2] = {0};
4750 av_init_packet(&end);
4751 end.size = sizeof(data);
4756 end.stream_index = stream_index;
4758 ret = mov_write_single_packet(s, &end);
4759 av_packet_unref(&end);
4764 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4767 mov_flush_fragment(s, 1);
4771 MOVMuxContext *mov = s->priv_data;
4772 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4775 return mov_write_single_packet(s, pkt); /* Passthrough. */
4778 * Subtitles require special handling.
4780 * 1) For full complaince, every track must have a sample at
4781 * dts == 0, which is rarely true for subtitles. So, as soon
4782 * as we see any packet with dts > 0, write an empty subtitle
4783 * at dts == 0 for any subtitle track with no samples in it.
4785 * 2) For each subtitle track, check if the current packet's
4786 * dts is past the duration of the last subtitle sample. If
4787 * so, we now need to write an end sample for that subtitle.
4789 * This must be done conditionally to allow for subtitles that
4790 * immediately replace each other, in which case an end sample
4791 * is not needed, and is, in fact, actively harmful.
4793 * 3) See mov_write_trailer for how the final end sample is
4796 for (i = 0; i < mov->nb_streams; i++) {
4797 MOVTrack *trk = &mov->tracks[i];
4800 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
4801 trk->track_duration < pkt->dts &&
4802 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4803 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4804 if (ret < 0) return ret;
4805 trk->last_sample_is_subtitle_end = 1;
4809 if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4810 AVPacket *opkt = pkt;
4811 int reshuffle_ret, ret;
4812 if (trk->is_unaligned_qt_rgb) {
4813 int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
4814 int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
4815 reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
4816 if (reshuffle_ret < 0)
4817 return reshuffle_ret;
4820 if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
4821 ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
4826 } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
4827 (trk->par->format == AV_PIX_FMT_GRAY8 ||
4828 trk->par->format == AV_PIX_FMT_MONOBLACK)) {
4829 for (i = 0; i < pkt->size; i++)
4830 pkt->data[i] = ~pkt->data[i];
4832 if (reshuffle_ret) {
4833 ret = mov_write_single_packet(s, pkt);
4836 av_packet_free(&pkt);
4841 return mov_write_single_packet(s, pkt);
4845 // QuickTime chapters involve an additional text track with the chapter names
4846 // as samples, and a tref pointing from the other tracks to the chapter one.
4847 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4851 MOVMuxContext *mov = s->priv_data;
4852 MOVTrack *track = &mov->tracks[tracknum];
4853 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4856 track->mode = mov->mode;
4857 track->tag = MKTAG('t','e','x','t');
4858 track->timescale = MOV_TIMESCALE;
4859 track->par = avcodec_parameters_alloc();
4861 return AVERROR(ENOMEM);
4862 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
4864 // These properties are required to make QT recognize the chapter track
4865 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4866 if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
4867 return AVERROR(ENOMEM);
4868 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
4870 if (avio_open_dyn_buf(&pb) >= 0) {
4874 /* Stub header (usually for Quicktime chapter track) */
4876 avio_wb32(pb, 0x01); // displayFlags
4877 avio_w8(pb, 0x00); // horizontal justification
4878 avio_w8(pb, 0x00); // vertical justification
4879 avio_w8(pb, 0x00); // bgColourRed
4880 avio_w8(pb, 0x00); // bgColourGreen
4881 avio_w8(pb, 0x00); // bgColourBlue
4882 avio_w8(pb, 0x00); // bgColourAlpha
4884 avio_wb16(pb, 0x00); // defTextBoxTop
4885 avio_wb16(pb, 0x00); // defTextBoxLeft
4886 avio_wb16(pb, 0x00); // defTextBoxBottom
4887 avio_wb16(pb, 0x00); // defTextBoxRight
4889 avio_wb16(pb, 0x00); // startChar
4890 avio_wb16(pb, 0x00); // endChar
4891 avio_wb16(pb, 0x01); // fontID
4892 avio_w8(pb, 0x00); // fontStyleFlags
4893 avio_w8(pb, 0x00); // fontSize
4894 avio_w8(pb, 0x00); // fgColourRed
4895 avio_w8(pb, 0x00); // fgColourGreen
4896 avio_w8(pb, 0x00); // fgColourBlue
4897 avio_w8(pb, 0x00); // fgColourAlpha
4899 avio_wb32(pb, 0x0D); // box size
4900 ffio_wfourcc(pb, "ftab"); // box atom name
4901 avio_wb16(pb, 0x01); // entry count
4903 avio_wb16(pb, 0x01); // font ID
4904 avio_w8(pb, 0x00); // font name length
4906 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4907 track->par->extradata = buf;
4908 track->par->extradata_size = size;
4915 for (i = 0; i < s->nb_chapters; i++) {
4916 AVChapter *c = s->chapters[i];
4917 AVDictionaryEntry *t;
4919 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4920 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4921 pkt.duration = end - pkt.dts;
4923 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4924 const char encd[12] = {
4925 0x00, 0x00, 0x00, 0x0C,
4927 0x00, 0x00, 0x01, 0x00 };
4928 len = strlen(t->value);
4929 pkt.size = len + 2 + 12;
4930 pkt.data = av_malloc(pkt.size);
4932 return AVERROR(ENOMEM);
4933 AV_WB16(pkt.data, len);
4934 memcpy(pkt.data + 2, t->value, len);
4935 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4936 ff_mov_write_packet(s, &pkt);
4937 av_freep(&pkt.data);
4944 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4947 MOVMuxContext *mov = s->priv_data;
4948 MOVTrack *track = &mov->tracks[index];
4949 AVStream *src_st = s->streams[src_index];
4951 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4952 AVRational rate = find_fps(s, src_st);
4954 /* compute the frame number */
4955 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4959 /* tmcd track based on video stream */
4960 track->mode = mov->mode;
4961 track->tag = MKTAG('t','m','c','d');
4962 track->src_track = src_index;
4963 track->timescale = mov->tracks[src_index].timescale;
4964 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4965 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4967 /* set st to src_st for metadata access*/
4970 /* encode context: tmcd data stream */
4971 track->par = avcodec_parameters_alloc();
4973 return AVERROR(ENOMEM);
4974 track->par->codec_type = AVMEDIA_TYPE_DATA;
4975 track->par->codec_tag = track->tag;
4976 track->st->avg_frame_rate = av_inv_q(rate);
4978 /* the tmcd track just contains one packet with the frame number */
4979 pkt.data = av_malloc(pkt.size);
4981 return AVERROR(ENOMEM);
4982 AV_WB32(pkt.data, tc.start);
4983 ret = ff_mov_write_packet(s, &pkt);
4989 * st->disposition controls the "enabled" flag in the tkhd tag.
4990 * QuickTime will not play a track if it is not enabled. So make sure
4991 * that one track of each type (audio, video, subtitle) is enabled.
4993 * Subtitles are special. For audio and video, setting "enabled" also
4994 * makes the track "default" (i.e. it is rendered when played). For
4995 * subtitles, an "enabled" subtitle is not rendered by default, but
4996 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4999 static void enable_tracks(AVFormatContext *s)
5001 MOVMuxContext *mov = s->priv_data;
5003 int enabled[AVMEDIA_TYPE_NB];
5004 int first[AVMEDIA_TYPE_NB];
5006 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5011 for (i = 0; i < s->nb_streams; i++) {
5012 AVStream *st = s->streams[i];
5014 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
5015 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
5018 if (first[st->codecpar->codec_type] < 0)
5019 first[st->codecpar->codec_type] = i;
5020 if (st->disposition & AV_DISPOSITION_DEFAULT) {
5021 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
5022 enabled[st->codecpar->codec_type]++;
5026 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5028 case AVMEDIA_TYPE_VIDEO:
5029 case AVMEDIA_TYPE_AUDIO:
5030 case AVMEDIA_TYPE_SUBTITLE:
5032 mov->per_stream_grouping = 1;
5033 if (!enabled[i] && first[i] >= 0)
5034 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
5040 static void mov_free(AVFormatContext *s)
5042 MOVMuxContext *mov = s->priv_data;
5045 if (mov->chapter_track) {
5046 if (mov->tracks[mov->chapter_track].par)
5047 av_freep(&mov->tracks[mov->chapter_track].par->extradata);
5048 av_freep(&mov->tracks[mov->chapter_track].par);
5051 for (i = 0; i < mov->nb_streams; i++) {
5052 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
5053 ff_mov_close_hinting(&mov->tracks[i]);
5054 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
5055 av_freep(&mov->tracks[i].par);
5056 av_freep(&mov->tracks[i].cluster);
5057 av_freep(&mov->tracks[i].frag_info);
5059 if (mov->tracks[i].vos_len)
5060 av_freep(&mov->tracks[i].vos_data);
5062 ff_mov_cenc_free(&mov->tracks[i].cenc);
5065 av_freep(&mov->tracks);
5068 static uint32_t rgb_to_yuv(uint32_t rgb)
5073 r = (rgb >> 16) & 0xFF;
5074 g = (rgb >> 8) & 0xFF;
5077 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
5078 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
5079 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
5081 return (y << 16) | (cr << 8) | cb;
5084 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
5087 int i, width = 720, height = 480;
5088 int have_palette = 0, have_size = 0;
5089 uint32_t palette[16];
5090 char *cur = st->codecpar->extradata;
5092 while (cur && *cur) {
5093 if (strncmp("palette:", cur, 8) == 0) {
5095 count = sscanf(cur + 8,
5096 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5097 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5098 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5099 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
5100 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
5101 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
5102 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
5103 &palette[12], &palette[13], &palette[14], &palette[15]);
5105 for (i = 0; i < count; i++) {
5106 palette[i] = rgb_to_yuv(palette[i]);
5109 } else if (!strncmp("size:", cur, 5)) {
5110 sscanf(cur + 5, "%dx%d", &width, &height);
5113 if (have_palette && have_size)
5115 cur += strcspn(cur, "\n\r");
5116 cur += strspn(cur, "\n\r");
5119 track->vos_data = av_malloc(16*4);
5120 if (!track->vos_data)
5121 return AVERROR(ENOMEM);
5122 for (i = 0; i < 16; i++) {
5123 AV_WB32(track->vos_data + i * 4, palette[i]);
5125 track->vos_len = 16 * 4;
5127 st->codecpar->width = width;
5128 st->codecpar->height = track->height = height;
5133 static int mov_write_header(AVFormatContext *s)
5135 AVIOContext *pb = s->pb;
5136 MOVMuxContext *mov = s->priv_data;
5137 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
5138 int i, ret, hint_track = 0, tmcd_track = 0;
5142 /* Default mode == MP4 */
5143 mov->mode = MODE_MP4;
5146 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
5147 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
5148 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
5149 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
5150 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
5151 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
5152 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
5155 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5156 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
5158 /* Set the FRAGMENT flag if any of the fragmentation methods are
5160 if (mov->max_fragment_duration || mov->max_fragment_size ||
5161 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
5162 FF_MOV_FLAG_FRAG_KEYFRAME |
5163 FF_MOV_FLAG_FRAG_CUSTOM))
5164 mov->flags |= FF_MOV_FLAG_FRAGMENT;
5166 /* Set other implicit flags immediately */
5167 if (mov->mode == MODE_ISM)
5168 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
5169 FF_MOV_FLAG_FRAGMENT;
5170 if (mov->flags & FF_MOV_FLAG_DASH)
5171 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
5172 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
5174 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5175 mov->reserved_moov_size = -1;
5178 if (mov->use_editlist < 0) {
5179 mov->use_editlist = 1;
5180 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5181 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5182 // If we can avoid needing an edit list by shifting the
5183 // tracks, prefer that over (trying to) write edit lists
5184 // in fragmented output.
5185 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5186 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5187 mov->use_editlist = 0;
5190 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5191 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5192 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5194 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5195 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5197 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5198 * if the latter is set that's enough and omit_tfhd_offset doesn't
5199 * add anything extra on top of that. */
5200 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5201 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5202 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5204 if (mov->frag_interleave &&
5205 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5206 av_log(s, AV_LOG_ERROR,
5207 "Sample interleaving in fragments is mutually exclusive with "
5208 "omit_tfhd_offset and separate_moof\n");
5209 return AVERROR(EINVAL);
5212 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5213 * is enabled, we don't support non-seekable output at all. */
5214 if (!s->pb->seekable &&
5215 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5216 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5217 return AVERROR(EINVAL);
5220 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5221 if ((ret = mov_write_identification(pb, s)) < 0)
5225 mov->nb_streams = s->nb_streams;
5226 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5227 mov->chapter_track = mov->nb_streams++;
5229 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5230 /* Add hint tracks for each audio and video stream */
5231 hint_track = mov->nb_streams;
5232 for (i = 0; i < s->nb_streams; i++) {
5233 AVStream *st = s->streams[i];
5234 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
5235 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5241 if (mov->mode == MODE_MOV || mov->mode == MODE_MP4) {
5242 tmcd_track = mov->nb_streams;
5244 /* +1 tmcd track for each video stream with a timecode */
5245 for (i = 0; i < s->nb_streams; i++) {
5246 AVStream *st = s->streams[i];
5247 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
5248 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
5249 mov->nb_meta_tmcd++;
5252 /* check if there is already a tmcd track to remux */
5253 if (mov->nb_meta_tmcd) {
5254 for (i = 0; i < s->nb_streams; i++) {
5255 AVStream *st = s->streams[i];
5256 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
5257 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5258 "so timecode metadata are now ignored\n");
5259 mov->nb_meta_tmcd = 0;
5264 mov->nb_streams += mov->nb_meta_tmcd;
5267 // Reserve an extra stream for chapters for the case where chapters
5268 // are written in the trailer
5269 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5271 return AVERROR(ENOMEM);
5273 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
5274 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
5275 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
5277 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
5278 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
5279 mov->encryption_key_len, AES_CTR_KEY_SIZE);
5280 ret = AVERROR(EINVAL);
5284 if (mov->encryption_kid_len != CENC_KID_SIZE) {
5285 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
5286 mov->encryption_kid_len, CENC_KID_SIZE);
5287 ret = AVERROR(EINVAL);
5291 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
5292 mov->encryption_scheme_str);
5293 ret = AVERROR(EINVAL);
5298 for (i = 0; i < s->nb_streams; i++) {
5299 AVStream *st= s->streams[i];
5300 MOVTrack *track= &mov->tracks[i];
5301 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5304 track->par = st->codecpar;
5305 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5306 if (track->language < 0)
5307 track->language = 0;
5308 track->mode = mov->mode;
5309 track->tag = mov_find_codec_tag(s, track);
5311 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5312 "codec not currently supported in container\n",
5313 avcodec_get_name(st->codecpar->codec_id), i);
5314 ret = AVERROR(EINVAL);
5317 /* If hinting of this track is enabled by a later hint track,
5318 * this is updated. */
5319 track->hint_track = -1;
5320 track->start_dts = AV_NOPTS_VALUE;
5321 track->start_cts = AV_NOPTS_VALUE;
5322 track->end_pts = AV_NOPTS_VALUE;
5323 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5324 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5325 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5326 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5327 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
5328 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5329 ret = AVERROR(EINVAL);
5332 track->height = track->tag >> 24 == 'n' ? 486 : 576;
5334 if (mov->video_track_timescale) {
5335 track->timescale = mov->video_track_timescale;
5337 track->timescale = st->time_base.den;
5338 while(track->timescale < 10000)
5339 track->timescale *= 2;
5341 if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
5342 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
5343 ret = AVERROR(EINVAL);
5346 if (track->mode == MODE_MOV && track->timescale > 100000)
5347 av_log(s, AV_LOG_WARNING,
5348 "WARNING codec timebase is very high. If duration is too long,\n"
5349 "file may not be playable by quicktime. Specify a shorter timebase\n"
5350 "or choose different container.\n");
5351 if (track->mode == MODE_MOV &&
5352 track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
5353 track->tag == MKTAG('r','a','w',' ')) {
5354 enum AVPixelFormat pix_fmt = track->par->format;
5355 if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
5356 pix_fmt = AV_PIX_FMT_MONOWHITE;
5357 track->is_unaligned_qt_rgb =
5358 pix_fmt == AV_PIX_FMT_RGB24 ||
5359 pix_fmt == AV_PIX_FMT_BGR24 ||
5360 pix_fmt == AV_PIX_FMT_PAL8 ||
5361 pix_fmt == AV_PIX_FMT_GRAY8 ||
5362 pix_fmt == AV_PIX_FMT_MONOWHITE ||
5363 pix_fmt == AV_PIX_FMT_MONOBLACK;
5365 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5366 track->timescale = st->codecpar->sample_rate;
5367 if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
5368 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
5369 track->audio_vbr = 1;
5370 }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
5371 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
5372 st->codecpar->codec_id == AV_CODEC_ID_ILBC){
5373 if (!st->codecpar->block_align) {
5374 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
5375 ret = AVERROR(EINVAL);
5378 track->sample_size = st->codecpar->block_align;
5379 }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
5380 track->audio_vbr = 1;
5382 track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
5384 if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
5385 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
5386 track->audio_vbr = 1;
5388 if (track->mode != MODE_MOV &&
5389 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5390 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
5391 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
5392 i, track->par->sample_rate);
5393 ret = AVERROR(EINVAL);
5396 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
5397 i, track->par->sample_rate);
5400 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5401 track->timescale = st->time_base.den;
5402 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
5403 track->timescale = st->time_base.den;
5405 track->timescale = MOV_TIMESCALE;
5408 track->height = st->codecpar->height;
5409 /* The ism specific timescale isn't mandatory, but is assumed by
5410 * some tools, such as mp4split. */
5411 if (mov->mode == MODE_ISM)
5412 track->timescale = 10000000;
5414 avpriv_set_pts_info(st, 64, 1, track->timescale);
5416 /* copy extradata if it exists */
5417 if (st->codecpar->extradata_size) {
5418 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
5419 mov_create_dvd_sub_decoder_specific_info(track, st);
5420 else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
5421 track->vos_len = st->codecpar->extradata_size;
5422 track->vos_data = av_malloc(track->vos_len);
5423 if (!track->vos_data) {
5424 ret = AVERROR(ENOMEM);
5427 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
5431 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
5432 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
5433 track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
5440 for (i = 0; i < s->nb_streams; i++) {
5442 AVStream *st= s->streams[i];
5443 MOVTrack *track= &mov->tracks[i];
5445 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
5446 track->par->channel_layout != AV_CH_LAYOUT_MONO)
5449 for (j = 0; j < s->nb_streams; j++) {
5450 AVStream *stj= s->streams[j];
5451 MOVTrack *trackj= &mov->tracks[j];
5455 if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
5456 trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
5457 trackj->language != track->language ||
5458 trackj->tag != track->tag
5461 track->multichannel_as_mono++;
5468 if (mov->reserved_moov_size){
5469 mov->reserved_header_pos = avio_tell(pb);
5470 if (mov->reserved_moov_size > 0)
5471 avio_skip(pb, mov->reserved_moov_size);
5474 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5475 /* If no fragmentation options have been set, set a default. */
5476 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5477 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5478 !mov->max_fragment_duration && !mov->max_fragment_size)
5479 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5481 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5482 mov->reserved_header_pos = avio_tell(pb);
5483 mov_write_mdat_tag(pb, mov);
5486 ff_parse_creation_time_metadata(s, &mov->time, 1);
5488 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5490 if (mov->chapter_track)
5491 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5494 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5495 /* Initialize the hint tracks for each audio and video stream */
5496 for (i = 0; i < s->nb_streams; i++) {
5497 AVStream *st = s->streams[i];
5498 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
5499 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5500 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5507 if (mov->nb_meta_tmcd) {
5508 /* Initialize the tmcd tracks */
5509 for (i = 0; i < s->nb_streams; i++) {
5510 AVStream *st = s->streams[i];
5513 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5515 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5518 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5527 if (mov->flags & FF_MOV_FLAG_ISML)
5528 mov_write_isml_manifest(pb, mov);
5530 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5531 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5532 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5535 mov->moov_written = 1;
5536 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5537 mov->reserved_header_pos = avio_tell(pb);
5546 static int get_moov_size(AVFormatContext *s)
5549 AVIOContext *moov_buf;
5550 MOVMuxContext *mov = s->priv_data;
5552 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5554 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5556 return ffio_close_null_buf(moov_buf);
5559 static int get_sidx_size(AVFormatContext *s)
5563 MOVMuxContext *mov = s->priv_data;
5565 if ((ret = ffio_open_null_buf(&buf)) < 0)
5567 mov_write_sidx_tags(buf, mov, -1, 0);
5568 return ffio_close_null_buf(buf);
5572 * This function gets the moov size if moved to the top of the file: the chunk
5573 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5574 * entries) when the moov is moved to the beginning, so the size of the moov
5575 * would change. It also updates the chunk offset tables.
5577 static int compute_moov_size(AVFormatContext *s)
5579 int i, moov_size, moov_size2;
5580 MOVMuxContext *mov = s->priv_data;
5582 moov_size = get_moov_size(s);
5586 for (i = 0; i < mov->nb_streams; i++)
5587 mov->tracks[i].data_offset += moov_size;
5589 moov_size2 = get_moov_size(s);
5593 /* if the size changed, we just switched from stco to co64 and need to
5594 * update the offsets */
5595 if (moov_size2 != moov_size)
5596 for (i = 0; i < mov->nb_streams; i++)
5597 mov->tracks[i].data_offset += moov_size2 - moov_size;
5602 static int compute_sidx_size(AVFormatContext *s)
5605 MOVMuxContext *mov = s->priv_data;
5607 sidx_size = get_sidx_size(s);
5611 for (i = 0; i < mov->nb_streams; i++)
5612 mov->tracks[i].data_offset += sidx_size;
5617 static int shift_data(AVFormatContext *s)
5619 int ret = 0, moov_size;
5620 MOVMuxContext *mov = s->priv_data;
5621 int64_t pos, pos_end = avio_tell(s->pb);
5622 uint8_t *buf, *read_buf[2];
5623 int read_buf_id = 0;
5625 AVIOContext *read_pb;
5627 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5628 moov_size = compute_sidx_size(s);
5630 moov_size = compute_moov_size(s);
5634 buf = av_malloc(moov_size * 2);
5636 return AVERROR(ENOMEM);
5638 read_buf[1] = buf + moov_size;
5640 /* Shift the data: the AVIO context of the output can only be used for
5641 * writing, so we re-open the same output, but for reading. It also avoids
5642 * a read/seek/write/seek back and forth. */
5644 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
5646 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5647 "the second pass (faststart)\n", s->filename);
5651 /* mark the end of the shift to up to the last data we wrote, and get ready
5653 pos_end = avio_tell(s->pb);
5654 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
5656 /* start reading at where the new moov will be placed */
5657 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
5658 pos = avio_tell(read_pb);
5660 #define READ_BLOCK do { \
5661 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5665 /* shift data by chunk of at most moov_size */
5670 n = read_size[read_buf_id];
5673 avio_write(s->pb, read_buf[read_buf_id], n);
5675 } while (pos < pos_end);
5676 ff_format_io_close(s, &read_pb);
5683 static int mov_write_trailer(AVFormatContext *s)
5685 MOVMuxContext *mov = s->priv_data;
5686 AVIOContext *pb = s->pb;
5692 * Before actually writing the trailer, make sure that there are no
5693 * dangling subtitles, that need a terminating sample.
5695 for (i = 0; i < mov->nb_streams; i++) {
5696 MOVTrack *trk = &mov->tracks[i];
5697 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
5698 !trk->last_sample_is_subtitle_end) {
5699 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5700 trk->last_sample_is_subtitle_end = 1;
5704 // If there were no chapters when the header was written, but there
5705 // are chapters now, write them in the trailer. This only works
5706 // when we are not doing fragments.
5707 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5708 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5709 mov->chapter_track = mov->nb_streams++;
5710 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5715 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5716 moov_pos = avio_tell(pb);
5718 /* Write size of mdat tag */
5719 if (mov->mdat_size + 8 <= UINT32_MAX) {
5720 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5721 avio_wb32(pb, mov->mdat_size + 8);
5723 /* overwrite 'wide' placeholder atom */
5724 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5725 /* special value: real atom size will be 64 bit value after
5728 ffio_wfourcc(pb, "mdat");
5729 avio_wb64(pb, mov->mdat_size + 16);
5731 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
5733 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5734 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5735 res = shift_data(s);
5737 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5738 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5741 } else if (mov->reserved_moov_size > 0) {
5743 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5745 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
5747 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5748 res = AVERROR(EINVAL);
5751 avio_wb32(pb, size);
5752 ffio_wfourcc(pb, "free");
5753 ffio_fill(pb, 0, size - 8);
5754 avio_seek(pb, moov_pos, SEEK_SET);
5756 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5761 mov_auto_flush_fragment(s, 1);
5762 for (i = 0; i < mov->nb_streams; i++)
5763 mov->tracks[i].data_offset = 0;
5764 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
5765 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5766 res = shift_data(s);
5768 int64_t end = avio_tell(pb);
5769 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5770 mov_write_sidx_tags(pb, mov, -1, 0);
5771 avio_seek(pb, end, SEEK_SET);
5772 mov_write_mfra_tag(pb, mov);
5775 mov_write_mfra_tag(pb, mov);
5785 #if CONFIG_MOV_MUXER
5787 AVOutputFormat ff_mov_muxer = {
5789 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5790 .extensions = "mov",
5791 .priv_data_size = sizeof(MOVMuxContext),
5792 .audio_codec = AV_CODEC_ID_AAC,
5793 .video_codec = CONFIG_LIBX264_ENCODER ?
5794 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5795 .write_header = mov_write_header,
5796 .write_packet = mov_write_packet,
5797 .write_trailer = mov_write_trailer,
5798 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5799 .codec_tag = (const AVCodecTag* const []){
5800 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5802 .priv_class = &mov_muxer_class,
5805 #if CONFIG_TGP_MUXER
5807 AVOutputFormat ff_tgp_muxer = {
5809 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5810 .extensions = "3gp",
5811 .priv_data_size = sizeof(MOVMuxContext),
5812 .audio_codec = AV_CODEC_ID_AMR_NB,
5813 .video_codec = AV_CODEC_ID_H263,
5814 .write_header = mov_write_header,
5815 .write_packet = mov_write_packet,
5816 .write_trailer = mov_write_trailer,
5817 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5818 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5819 .priv_class = &tgp_muxer_class,
5822 #if CONFIG_MP4_MUXER
5824 AVOutputFormat ff_mp4_muxer = {
5826 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5827 .mime_type = "video/mp4",
5828 .extensions = "mp4",
5829 .priv_data_size = sizeof(MOVMuxContext),
5830 .audio_codec = AV_CODEC_ID_AAC,
5831 .video_codec = CONFIG_LIBX264_ENCODER ?
5832 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5833 .write_header = mov_write_header,
5834 .write_packet = mov_write_packet,
5835 .write_trailer = mov_write_trailer,
5836 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5837 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5838 .priv_class = &mp4_muxer_class,
5841 #if CONFIG_PSP_MUXER
5843 AVOutputFormat ff_psp_muxer = {
5845 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5846 .extensions = "mp4,psp",
5847 .priv_data_size = sizeof(MOVMuxContext),
5848 .audio_codec = AV_CODEC_ID_AAC,
5849 .video_codec = CONFIG_LIBX264_ENCODER ?
5850 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5851 .write_header = mov_write_header,
5852 .write_packet = mov_write_packet,
5853 .write_trailer = mov_write_trailer,
5854 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5855 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5856 .priv_class = &psp_muxer_class,
5859 #if CONFIG_TG2_MUXER
5861 AVOutputFormat ff_tg2_muxer = {
5863 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5864 .extensions = "3g2",
5865 .priv_data_size = sizeof(MOVMuxContext),
5866 .audio_codec = AV_CODEC_ID_AMR_NB,
5867 .video_codec = AV_CODEC_ID_H263,
5868 .write_header = mov_write_header,
5869 .write_packet = mov_write_packet,
5870 .write_trailer = mov_write_trailer,
5871 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5872 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5873 .priv_class = &tg2_muxer_class,
5876 #if CONFIG_IPOD_MUXER
5878 AVOutputFormat ff_ipod_muxer = {
5880 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5881 .mime_type = "video/mp4",
5882 .extensions = "m4v,m4a",
5883 .priv_data_size = sizeof(MOVMuxContext),
5884 .audio_codec = AV_CODEC_ID_AAC,
5885 .video_codec = AV_CODEC_ID_H264,
5886 .write_header = mov_write_header,
5887 .write_packet = mov_write_packet,
5888 .write_trailer = mov_write_trailer,
5889 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5890 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5891 .priv_class = &ipod_muxer_class,
5894 #if CONFIG_ISMV_MUXER
5896 AVOutputFormat ff_ismv_muxer = {
5898 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5899 .mime_type = "video/mp4",
5900 .extensions = "ismv,isma",
5901 .priv_data_size = sizeof(MOVMuxContext),
5902 .audio_codec = AV_CODEC_ID_AAC,
5903 .video_codec = AV_CODEC_ID_H264,
5904 .write_header = mov_write_header,
5905 .write_packet = mov_write_packet,
5906 .write_trailer = mov_write_trailer,
5907 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5908 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5909 .priv_class = &ismv_muxer_class,
5912 #if CONFIG_F4V_MUXER
5914 AVOutputFormat ff_f4v_muxer = {
5916 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5917 .mime_type = "application/f4v",
5918 .extensions = "f4v",
5919 .priv_data_size = sizeof(MOVMuxContext),
5920 .audio_codec = AV_CODEC_ID_AAC,
5921 .video_codec = AV_CODEC_ID_H264,
5922 .write_header = mov_write_header,
5923 .write_packet = mov_write_packet,
5924 .write_trailer = mov_write_trailer,
5925 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5926 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5927 .priv_class = &f4v_muxer_class,