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 */
1897 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1898 if (t && utf8len(t->value) && track->mode != MODE_MP4)
1899 mov_write_source_reference_tag(pb, track, t->value);
1901 avio_wb16(pb, 0); /* zero size */
1904 avio_wb32(pb, 0); /* size */
1905 ffio_wfourcc(pb, "tmcd"); /* Data format */
1906 avio_wb32(pb, 0); /* Reserved */
1907 avio_wb32(pb, 1); /* Data reference index */
1908 if (track->par->extradata_size)
1909 avio_write(pb, track->par->extradata, track->par->extradata_size);
1911 return update_size(pb, pos);
1914 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1916 int64_t pos = avio_tell(pb);
1917 avio_wb32(pb, 0); /* size */
1918 ffio_wfourcc(pb, "stsd");
1919 avio_wb32(pb, 0); /* version & flags */
1920 avio_wb32(pb, 1); /* entry count */
1921 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1922 mov_write_video_tag(pb, mov, track);
1923 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1924 mov_write_audio_tag(s, pb, mov, track);
1925 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1926 mov_write_subtitle_tag(pb, track);
1927 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1928 mov_write_rtp_tag(pb, track);
1929 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1930 mov_write_tmcd_tag(pb, track);
1931 return update_size(pb, pos);
1934 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1936 MOVStts *ctts_entries;
1937 uint32_t entries = 0;
1941 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1943 return AVERROR(ENOMEM);
1944 ctts_entries[0].count = 1;
1945 ctts_entries[0].duration = track->cluster[0].cts;
1946 for (i = 1; i < track->entry; i++) {
1947 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1948 ctts_entries[entries].count++; /* compress */
1951 ctts_entries[entries].duration = track->cluster[i].cts;
1952 ctts_entries[entries].count = 1;
1955 entries++; /* last one */
1956 atom_size = 16 + (entries * 8);
1957 avio_wb32(pb, atom_size); /* size */
1958 ffio_wfourcc(pb, "ctts");
1959 avio_wb32(pb, 0); /* version & flags */
1960 avio_wb32(pb, entries); /* entry count */
1961 for (i = 0; i < entries; i++) {
1962 avio_wb32(pb, ctts_entries[i].count);
1963 avio_wb32(pb, ctts_entries[i].duration);
1965 av_free(ctts_entries);
1969 /* Time to sample atom */
1970 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1972 MOVStts *stts_entries = NULL;
1973 uint32_t entries = -1;
1977 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1978 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1980 return AVERROR(ENOMEM);
1981 stts_entries[0].count = track->sample_count;
1982 stts_entries[0].duration = 1;
1986 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1988 return AVERROR(ENOMEM);
1990 for (i = 0; i < track->entry; i++) {
1991 int duration = get_cluster_duration(track, i);
1992 if (i && duration == stts_entries[entries].duration) {
1993 stts_entries[entries].count++; /* compress */
1996 stts_entries[entries].duration = duration;
1997 stts_entries[entries].count = 1;
2000 entries++; /* last one */
2002 atom_size = 16 + (entries * 8);
2003 avio_wb32(pb, atom_size); /* size */
2004 ffio_wfourcc(pb, "stts");
2005 avio_wb32(pb, 0); /* version & flags */
2006 avio_wb32(pb, entries); /* entry count */
2007 for (i = 0; i < entries; i++) {
2008 avio_wb32(pb, stts_entries[i].count);
2009 avio_wb32(pb, stts_entries[i].duration);
2011 av_free(stts_entries);
2015 static int mov_write_dref_tag(AVIOContext *pb)
2017 avio_wb32(pb, 28); /* size */
2018 ffio_wfourcc(pb, "dref");
2019 avio_wb32(pb, 0); /* version & flags */
2020 avio_wb32(pb, 1); /* entry count */
2022 avio_wb32(pb, 0xc); /* size */
2023 //FIXME add the alis and rsrc atom
2024 ffio_wfourcc(pb, "url ");
2025 avio_wb32(pb, 1); /* version & flags */
2030 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2032 int64_t pos = avio_tell(pb);
2035 avio_wb32(pb, 0); /* size */
2036 ffio_wfourcc(pb, "stbl");
2037 mov_write_stsd_tag(s, pb, mov, track);
2038 mov_write_stts_tag(pb, track);
2039 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2040 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2041 track->has_keyframes && track->has_keyframes < track->entry)
2042 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2043 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2044 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2045 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2046 track->flags & MOV_TRACK_CTTS && track->entry) {
2048 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
2051 mov_write_stsc_tag(pb, track);
2052 mov_write_stsz_tag(pb, track);
2053 mov_write_stco_tag(pb, track);
2054 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
2055 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2057 return update_size(pb, pos);
2060 static int mov_write_dinf_tag(AVIOContext *pb)
2062 int64_t pos = avio_tell(pb);
2063 avio_wb32(pb, 0); /* size */
2064 ffio_wfourcc(pb, "dinf");
2065 mov_write_dref_tag(pb);
2066 return update_size(pb, pos);
2069 static int mov_write_nmhd_tag(AVIOContext *pb)
2072 ffio_wfourcc(pb, "nmhd");
2077 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2079 int64_t pos = avio_tell(pb);
2080 const char *font = "Lucida Grande";
2081 avio_wb32(pb, 0); /* size */
2082 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2083 avio_wb32(pb, 0); /* version & flags */
2084 avio_wb16(pb, 0); /* text font */
2085 avio_wb16(pb, 0); /* text face */
2086 avio_wb16(pb, 12); /* text size */
2087 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2088 avio_wb16(pb, 0x0000); /* text color (red) */
2089 avio_wb16(pb, 0x0000); /* text color (green) */
2090 avio_wb16(pb, 0x0000); /* text color (blue) */
2091 avio_wb16(pb, 0xffff); /* background color (red) */
2092 avio_wb16(pb, 0xffff); /* background color (green) */
2093 avio_wb16(pb, 0xffff); /* background color (blue) */
2094 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2095 avio_write(pb, font, strlen(font)); /* font name */
2096 return update_size(pb, pos);
2099 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2101 int64_t pos = avio_tell(pb);
2102 avio_wb32(pb, 0); /* size */
2103 ffio_wfourcc(pb, "gmhd");
2104 avio_wb32(pb, 0x18); /* gmin size */
2105 ffio_wfourcc(pb, "gmin");/* generic media info */
2106 avio_wb32(pb, 0); /* version & flags */
2107 avio_wb16(pb, 0x40); /* graphics mode = */
2108 avio_wb16(pb, 0x8000); /* opColor (r?) */
2109 avio_wb16(pb, 0x8000); /* opColor (g?) */
2110 avio_wb16(pb, 0x8000); /* opColor (b?) */
2111 avio_wb16(pb, 0); /* balance */
2112 avio_wb16(pb, 0); /* reserved */
2115 * This special text atom is required for
2116 * Apple Quicktime chapters. The contents
2117 * don't appear to be documented, so the
2118 * bytes are copied verbatim.
2120 if (track->tag != MKTAG('c','6','0','8')) {
2121 avio_wb32(pb, 0x2C); /* size */
2122 ffio_wfourcc(pb, "text");
2123 avio_wb16(pb, 0x01);
2124 avio_wb32(pb, 0x00);
2125 avio_wb32(pb, 0x00);
2126 avio_wb32(pb, 0x00);
2127 avio_wb32(pb, 0x01);
2128 avio_wb32(pb, 0x00);
2129 avio_wb32(pb, 0x00);
2130 avio_wb32(pb, 0x00);
2131 avio_wb32(pb, 0x00004000);
2132 avio_wb16(pb, 0x0000);
2135 if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2136 int64_t tmcd_pos = avio_tell(pb);
2137 avio_wb32(pb, 0); /* size */
2138 ffio_wfourcc(pb, "tmcd");
2139 mov_write_tcmi_tag(pb, track);
2140 update_size(pb, tmcd_pos);
2142 return update_size(pb, pos);
2145 static int mov_write_smhd_tag(AVIOContext *pb)
2147 avio_wb32(pb, 16); /* size */
2148 ffio_wfourcc(pb, "smhd");
2149 avio_wb32(pb, 0); /* version & flags */
2150 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2151 avio_wb16(pb, 0); /* reserved */
2155 static int mov_write_vmhd_tag(AVIOContext *pb)
2157 avio_wb32(pb, 0x14); /* size (always 0x14) */
2158 ffio_wfourcc(pb, "vmhd");
2159 avio_wb32(pb, 0x01); /* version & flags */
2160 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2164 static int is_clcp_track(MOVTrack *track)
2166 return track->tag == MKTAG('c','7','0','8') ||
2167 track->tag == MKTAG('c','6','0','8');
2170 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2172 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2173 int64_t pos = avio_tell(pb);
2177 descr = "DataHandler";
2180 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2181 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2183 descr = "VideoHandler";
2184 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2186 descr = "SoundHandler";
2187 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2188 if (is_clcp_track(track)) {
2190 descr = "ClosedCaptionHandler";
2192 if (track->tag == MKTAG('t','x','3','g')) {
2194 } else if (track->tag == MKTAG('m','p','4','s')) {
2199 descr = "SubtitleHandler";
2201 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2203 descr = "HintHandler";
2204 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2206 descr = "TimeCodeHandler";
2209 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2210 track->par->codec_tag);
2212 av_log(s, AV_LOG_WARNING,
2213 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2214 tag_buf, track->par->codec_tag);
2217 // hdlr.name is used by some players to identify the content title
2218 // of the track. So if an alternate handler description is
2219 // specified, use it.
2220 AVDictionaryEntry *t;
2221 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2222 if (t && utf8len(t->value))
2227 avio_wb32(pb, 0); /* size */
2228 ffio_wfourcc(pb, "hdlr");
2229 avio_wb32(pb, 0); /* Version & flags */
2230 avio_write(pb, hdlr, 4); /* handler */
2231 ffio_wfourcc(pb, hdlr_type); /* handler type */
2232 avio_wb32(pb, 0); /* reserved */
2233 avio_wb32(pb, 0); /* reserved */
2234 avio_wb32(pb, 0); /* reserved */
2235 if (!track || track->mode == MODE_MOV)
2236 avio_w8(pb, strlen(descr)); /* pascal string */
2237 avio_write(pb, descr, strlen(descr)); /* handler description */
2238 if (track && track->mode != MODE_MOV)
2239 avio_w8(pb, 0); /* c string */
2240 return update_size(pb, pos);
2243 static int mov_write_hmhd_tag(AVIOContext *pb)
2245 /* This atom must be present, but leaving the values at zero
2246 * seems harmless. */
2247 avio_wb32(pb, 28); /* size */
2248 ffio_wfourcc(pb, "hmhd");
2249 avio_wb32(pb, 0); /* version, flags */
2250 avio_wb16(pb, 0); /* maxPDUsize */
2251 avio_wb16(pb, 0); /* avgPDUsize */
2252 avio_wb32(pb, 0); /* maxbitrate */
2253 avio_wb32(pb, 0); /* avgbitrate */
2254 avio_wb32(pb, 0); /* reserved */
2258 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2260 int64_t pos = avio_tell(pb);
2263 avio_wb32(pb, 0); /* size */
2264 ffio_wfourcc(pb, "minf");
2265 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2266 mov_write_vmhd_tag(pb);
2267 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2268 mov_write_smhd_tag(pb);
2269 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2270 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2271 mov_write_gmhd_tag(pb, track);
2273 mov_write_nmhd_tag(pb);
2275 } else if (track->tag == MKTAG('r','t','p',' ')) {
2276 mov_write_hmhd_tag(pb);
2277 } else if (track->tag == MKTAG('t','m','c','d')) {
2278 if (track->mode == MODE_MP4)
2279 mov_write_nmhd_tag(pb);
2281 mov_write_gmhd_tag(pb, track);
2283 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2284 mov_write_hdlr_tag(s, pb, NULL);
2285 mov_write_dinf_tag(pb);
2286 if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2288 return update_size(pb, pos);
2291 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2294 int version = track->track_duration < INT32_MAX ? 0 : 1;
2296 if (track->mode == MODE_ISM)
2299 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2300 ffio_wfourcc(pb, "mdhd");
2301 avio_w8(pb, version);
2302 avio_wb24(pb, 0); /* flags */
2304 avio_wb64(pb, track->time);
2305 avio_wb64(pb, track->time);
2307 avio_wb32(pb, track->time); /* creation time */
2308 avio_wb32(pb, track->time); /* modification time */
2310 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2311 if (!track->entry && mov->mode == MODE_ISM)
2312 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2313 else if (!track->entry)
2314 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2316 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2317 avio_wb16(pb, track->language); /* language */
2318 avio_wb16(pb, 0); /* reserved (quality) */
2320 if (version != 0 && track->mode == MODE_MOV) {
2321 av_log(NULL, AV_LOG_ERROR,
2322 "FATAL error, file duration too long for timebase, this file will not be\n"
2323 "playable with quicktime. Choose a different timebase or a different\n"
2324 "container format\n");
2330 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2331 MOVMuxContext *mov, MOVTrack *track)
2333 int64_t pos = avio_tell(pb);
2336 avio_wb32(pb, 0); /* size */
2337 ffio_wfourcc(pb, "mdia");
2338 mov_write_mdhd_tag(pb, mov, track);
2339 mov_write_hdlr_tag(s, pb, track);
2340 if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2342 return update_size(pb, pos);
2345 /* transformation matrix
2349 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2350 int16_t d, int16_t tx, int16_t ty)
2352 avio_wb32(pb, a << 16); /* 16.16 format */
2353 avio_wb32(pb, b << 16); /* 16.16 format */
2354 avio_wb32(pb, 0); /* u in 2.30 format */
2355 avio_wb32(pb, c << 16); /* 16.16 format */
2356 avio_wb32(pb, d << 16); /* 16.16 format */
2357 avio_wb32(pb, 0); /* v in 2.30 format */
2358 avio_wb32(pb, tx << 16); /* 16.16 format */
2359 avio_wb32(pb, ty << 16); /* 16.16 format */
2360 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2363 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2364 MOVTrack *track, AVStream *st)
2366 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2367 track->timescale, AV_ROUND_UP);
2368 int version = duration < INT32_MAX ? 0 : 1;
2369 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2373 uint32_t *display_matrix = NULL;
2374 int display_matrix_size, i;
2377 if (mov->per_stream_grouping)
2380 group = st->codecpar->codec_type;
2382 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2383 &display_matrix_size);
2384 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2385 display_matrix = NULL;
2388 if (track->flags & MOV_TRACK_ENABLED)
2389 flags |= MOV_TKHD_FLAG_ENABLED;
2391 if (track->mode == MODE_ISM)
2394 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2395 ffio_wfourcc(pb, "tkhd");
2396 avio_w8(pb, version);
2397 avio_wb24(pb, flags);
2399 avio_wb64(pb, track->time);
2400 avio_wb64(pb, track->time);
2402 avio_wb32(pb, track->time); /* creation time */
2403 avio_wb32(pb, track->time); /* modification time */
2405 avio_wb32(pb, track->track_id); /* track-id */
2406 avio_wb32(pb, 0); /* reserved */
2407 if (!track->entry && mov->mode == MODE_ISM)
2408 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2409 else if (!track->entry)
2410 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2412 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2414 avio_wb32(pb, 0); /* reserved */
2415 avio_wb32(pb, 0); /* reserved */
2416 avio_wb16(pb, 0); /* layer */
2417 avio_wb16(pb, group); /* alternate group) */
2418 /* Volume, only for audio */
2419 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2420 avio_wb16(pb, 0x0100);
2423 avio_wb16(pb, 0); /* reserved */
2425 /* Matrix structure */
2426 if (st && st->metadata) {
2427 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2428 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2430 if (display_matrix) {
2431 for (i = 0; i < 9; i++)
2432 avio_wb32(pb, display_matrix[i]);
2433 } else if (rotation == 90) {
2434 write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2435 } else if (rotation == 180) {
2436 write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2437 } else if (rotation == 270) {
2438 write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2440 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2442 /* Track width and height, for visual only */
2443 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2444 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2445 int64_t track_width_1616;
2446 if (track->mode == MODE_MOV) {
2447 track_width_1616 = track->par->width * 0x10000ULL;
2449 track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2450 track->par->width * 0x10000LL,
2451 st->sample_aspect_ratio.den);
2452 if (!track_width_1616 ||
2453 track->height != track->par->height ||
2454 track_width_1616 > UINT32_MAX)
2455 track_width_1616 = track->par->width * 0x10000ULL;
2457 if (track_width_1616 > UINT32_MAX) {
2458 av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
2459 track_width_1616 = 0;
2461 avio_wb32(pb, track_width_1616);
2462 if (track->height > 0xFFFF) {
2463 av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
2466 avio_wb32(pb, track->height * 0x10000U);
2474 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2476 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
2477 track->par->sample_aspect_ratio.den);
2479 int64_t pos = avio_tell(pb);
2481 avio_wb32(pb, 0); /* size */
2482 ffio_wfourcc(pb, "tapt");
2485 ffio_wfourcc(pb, "clef");
2487 avio_wb32(pb, width << 16);
2488 avio_wb32(pb, track->par->height << 16);
2491 ffio_wfourcc(pb, "prof");
2493 avio_wb32(pb, width << 16);
2494 avio_wb32(pb, track->par->height << 16);
2497 ffio_wfourcc(pb, "enof");
2499 avio_wb32(pb, track->par->width << 16);
2500 avio_wb32(pb, track->par->height << 16);
2502 return update_size(pb, pos);
2505 // This box seems important for the psp playback ... without it the movie seems to hang
2506 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2509 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2510 track->timescale, AV_ROUND_UP);
2511 int version = duration < INT32_MAX ? 0 : 1;
2512 int entry_size, entry_count, size;
2513 int64_t delay, start_ct = track->start_cts;
2514 int64_t start_dts = track->start_dts;
2517 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2519 av_log(mov->fc, AV_LOG_DEBUG,
2520 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2521 track->cluster[0].dts, track->cluster[0].cts,
2522 start_dts, start_ct, track->track_id);
2523 start_dts = track->cluster[0].dts;
2524 start_ct = track->cluster[0].cts;
2528 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2529 track->timescale, AV_ROUND_DOWN);
2530 version |= delay < INT32_MAX ? 0 : 1;
2532 entry_size = (version == 1) ? 20 : 12;
2533 entry_count = 1 + (delay > 0);
2534 size = 24 + entry_count * entry_size;
2536 /* write the atom data */
2537 avio_wb32(pb, size);
2538 ffio_wfourcc(pb, "edts");
2539 avio_wb32(pb, size - 8);
2540 ffio_wfourcc(pb, "elst");
2541 avio_w8(pb, version);
2542 avio_wb24(pb, 0); /* flags */
2544 avio_wb32(pb, entry_count);
2545 if (delay > 0) { /* add an empty edit to delay presentation */
2546 /* In the positive delay case, the delay includes the cts
2547 * offset, and the second edit list entry below trims out
2548 * the same amount from the actual content. This makes sure
2549 * that the offsetted last sample is included in the edit
2550 * list duration as well. */
2552 avio_wb64(pb, delay);
2555 avio_wb32(pb, delay);
2558 avio_wb32(pb, 0x00010000);
2560 /* Avoid accidentally ending up with start_ct = -1 which has got a
2561 * special meaning. Normally start_ct should end up positive or zero
2562 * here, but use FFMIN in case dts is a small positive integer
2563 * rounded to 0 when represented in MOV_TIMESCALE units. */
2564 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2565 start_ct = -FFMIN(start_dts, 0);
2566 /* Note, this delay is calculated from the pts of the first sample,
2567 * ensuring that we don't reduce the duration for cases with
2572 /* For fragmented files, we don't know the full length yet. Setting
2573 * duration to 0 allows us to only specify the offset, including
2574 * the rest of the content (from all future fragments) without specifying
2575 * an explicit duration. */
2576 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2581 avio_wb64(pb, duration);
2582 avio_wb64(pb, start_ct);
2584 avio_wb32(pb, duration);
2585 avio_wb32(pb, start_ct);
2587 avio_wb32(pb, 0x00010000);
2591 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2593 avio_wb32(pb, 20); // size
2594 ffio_wfourcc(pb, "tref");
2595 avio_wb32(pb, 12); // size (subatom)
2596 avio_wl32(pb, track->tref_tag);
2597 avio_wb32(pb, track->tref_id);
2601 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2602 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2604 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2605 ffio_wfourcc(pb, "uuid");
2606 ffio_wfourcc(pb, "USMT");
2607 avio_wb32(pb, 0x21d24fce);
2608 avio_wb32(pb, 0xbb88695c);
2609 avio_wb32(pb, 0xfac9c740);
2610 avio_wb32(pb, 0x1c); // another size here!
2611 ffio_wfourcc(pb, "MTDT");
2612 avio_wb32(pb, 0x00010012);
2613 avio_wb32(pb, 0x0a);
2614 avio_wb32(pb, 0x55c40000);
2620 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2622 AVFormatContext *ctx = track->rtp_ctx;
2623 char buf[1000] = "";
2626 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2627 NULL, NULL, 0, 0, ctx);
2628 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2631 avio_wb32(pb, len + 24);
2632 ffio_wfourcc(pb, "udta");
2633 avio_wb32(pb, len + 16);
2634 ffio_wfourcc(pb, "hnti");
2635 avio_wb32(pb, len + 8);
2636 ffio_wfourcc(pb, "sdp ");
2637 avio_write(pb, buf, len);
2641 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2642 const char *tag, const char *str)
2644 int64_t pos = avio_tell(pb);
2645 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2646 if (!t || !utf8len(t->value))
2649 avio_wb32(pb, 0); /* size */
2650 ffio_wfourcc(pb, tag); /* type */
2651 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2652 return update_size(pb, pos);
2655 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2658 AVIOContext *pb_buf;
2665 ret = avio_open_dyn_buf(&pb_buf);
2669 if (mov->mode & MODE_MP4)
2670 mov_write_track_metadata(pb_buf, st, "name", "title");
2672 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2673 avio_wb32(pb, size + 8);
2674 ffio_wfourcc(pb, "udta");
2675 avio_write(pb, buf, size);
2682 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
2683 MOVTrack *track, AVStream *st)
2685 int64_t pos = avio_tell(pb);
2686 int entry_backup = track->entry;
2687 int chunk_backup = track->chunkCount;
2690 /* If we want to have an empty moov, but some samples already have been
2691 * buffered (delay_moov), pretend that no samples have been written yet. */
2692 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2693 track->chunkCount = track->entry = 0;
2695 avio_wb32(pb, 0); /* size */
2696 ffio_wfourcc(pb, "trak");
2697 mov_write_tkhd_tag(pb, mov, track, st);
2699 av_assert2(mov->use_editlist >= 0);
2701 if (track->start_dts != AV_NOPTS_VALUE) {
2702 if (mov->use_editlist)
2703 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2704 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2705 av_log(mov->fc, AV_LOG_WARNING,
2706 "Not writing any edit list even though one would have been required\n");
2709 if (track->tref_tag)
2710 mov_write_tref_tag(pb, track);
2712 if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
2714 if (track->mode == MODE_PSP)
2715 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2716 if (track->tag == MKTAG('r','t','p',' '))
2717 mov_write_udta_sdp(pb, track);
2718 if (track->mode == MODE_MOV) {
2719 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2720 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2721 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2722 mov_write_tapt_tag(pb, track);
2725 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2726 mov_write_tapt_tag(pb, track);
2729 mov_write_track_udta_tag(pb, mov, st);
2730 track->entry = entry_backup;
2731 track->chunkCount = chunk_backup;
2732 return update_size(pb, pos);
2735 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2737 int i, has_audio = 0, has_video = 0;
2738 int64_t pos = avio_tell(pb);
2739 int audio_profile = mov->iods_audio_profile;
2740 int video_profile = mov->iods_video_profile;
2741 for (i = 0; i < mov->nb_streams; i++) {
2742 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2743 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
2744 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
2747 if (audio_profile < 0)
2748 audio_profile = 0xFF - has_audio;
2749 if (video_profile < 0)
2750 video_profile = 0xFF - has_video;
2751 avio_wb32(pb, 0x0); /* size */
2752 ffio_wfourcc(pb, "iods");
2753 avio_wb32(pb, 0); /* version & flags */
2754 put_descr(pb, 0x10, 7);
2755 avio_wb16(pb, 0x004f);
2758 avio_w8(pb, audio_profile);
2759 avio_w8(pb, video_profile);
2761 return update_size(pb, pos);
2764 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2766 avio_wb32(pb, 0x20); /* size */
2767 ffio_wfourcc(pb, "trex");
2768 avio_wb32(pb, 0); /* version & flags */
2769 avio_wb32(pb, track->track_id); /* track ID */
2770 avio_wb32(pb, 1); /* default sample description index */
2771 avio_wb32(pb, 0); /* default sample duration */
2772 avio_wb32(pb, 0); /* default sample size */
2773 avio_wb32(pb, 0); /* default sample flags */
2777 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2779 int64_t pos = avio_tell(pb);
2781 avio_wb32(pb, 0x0); /* size */
2782 ffio_wfourcc(pb, "mvex");
2783 for (i = 0; i < mov->nb_streams; i++)
2784 mov_write_trex_tag(pb, &mov->tracks[i]);
2785 return update_size(pb, pos);
2788 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2790 int max_track_id = 1, i;
2791 int64_t max_track_len = 0;
2794 for (i = 0; i < mov->nb_streams; i++) {
2795 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2796 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2798 mov->tracks[i].timescale,
2800 if (max_track_len < max_track_len_temp)
2801 max_track_len = max_track_len_temp;
2802 if (max_track_id < mov->tracks[i].track_id)
2803 max_track_id = mov->tracks[i].track_id;
2806 /* If using delay_moov, make sure the output is the same as if no
2807 * samples had been written yet. */
2808 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2813 version = max_track_len < UINT32_MAX ? 0 : 1;
2814 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2816 ffio_wfourcc(pb, "mvhd");
2817 avio_w8(pb, version);
2818 avio_wb24(pb, 0); /* flags */
2820 avio_wb64(pb, mov->time);
2821 avio_wb64(pb, mov->time);
2823 avio_wb32(pb, mov->time); /* creation time */
2824 avio_wb32(pb, mov->time); /* modification time */
2826 avio_wb32(pb, MOV_TIMESCALE);
2827 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2829 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2830 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2831 avio_wb16(pb, 0); /* reserved */
2832 avio_wb32(pb, 0); /* reserved */
2833 avio_wb32(pb, 0); /* reserved */
2835 /* Matrix structure */
2836 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2838 avio_wb32(pb, 0); /* reserved (preview time) */
2839 avio_wb32(pb, 0); /* reserved (preview duration) */
2840 avio_wb32(pb, 0); /* reserved (poster time) */
2841 avio_wb32(pb, 0); /* reserved (selection time) */
2842 avio_wb32(pb, 0); /* reserved (selection duration) */
2843 avio_wb32(pb, 0); /* reserved (current time) */
2844 avio_wb32(pb, max_track_id + 1); /* Next track id */
2848 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2851 avio_wb32(pb, 33); /* size */
2852 ffio_wfourcc(pb, "hdlr");
2855 ffio_wfourcc(pb, "mdir");
2856 ffio_wfourcc(pb, "appl");
2863 /* helper function to write a data tag with the specified string as data */
2864 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2867 int size = 16 + strlen(data);
2868 avio_wb32(pb, size); /* size */
2869 ffio_wfourcc(pb, "data");
2872 avio_write(pb, data, strlen(data));
2876 lang = ff_mov_iso639_to_lang("und", 1);
2877 avio_wb16(pb, strlen(data)); /* string length */
2878 avio_wb16(pb, lang);
2879 avio_write(pb, data, strlen(data));
2880 return strlen(data) + 4;
2884 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2885 const char *value, int lang, int long_style)
2888 if (value && value[0]) {
2889 int64_t pos = avio_tell(pb);
2890 avio_wb32(pb, 0); /* size */
2891 ffio_wfourcc(pb, name);
2892 mov_write_string_data_tag(pb, value, lang, long_style);
2893 size = update_size(pb, pos);
2898 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2899 const char *name, const char *tag,
2902 int l, lang = 0, len, len2;
2903 AVDictionaryEntry *t, *t2 = NULL;
2906 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2909 len = strlen(t->key);
2910 snprintf(tag2, sizeof(tag2), "%s-", tag);
2911 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2912 len2 = strlen(t2->key);
2913 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2914 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2919 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2922 /* iTunes bpm number */
2923 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2925 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2926 int size = 0, tmpo = t ? atoi(t->value) : 0;
2929 avio_wb32(pb, size);
2930 ffio_wfourcc(pb, "tmpo");
2931 avio_wb32(pb, size-8); /* size */
2932 ffio_wfourcc(pb, "data");
2933 avio_wb32(pb, 0x15); //type specifier
2935 avio_wb16(pb, tmpo); // data
2940 /* iTunes track or disc number */
2941 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2942 AVFormatContext *s, int disc)
2944 AVDictionaryEntry *t = av_dict_get(s->metadata,
2945 disc ? "disc" : "track",
2947 int size = 0, track = t ? atoi(t->value) : 0;
2950 char *slash = strchr(t->value, '/');
2952 tracks = atoi(slash + 1);
2953 avio_wb32(pb, 32); /* size */
2954 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2955 avio_wb32(pb, 24); /* size */
2956 ffio_wfourcc(pb, "data");
2957 avio_wb32(pb, 0); // 8 bytes empty
2959 avio_wb16(pb, 0); // empty
2960 avio_wb16(pb, track); // track / disc number
2961 avio_wb16(pb, tracks); // total track / disc number
2962 avio_wb16(pb, 0); // empty
2968 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2969 const char *name, const char *tag,
2972 AVDictionaryEntry *t = NULL;
2974 int size = 24 + len;
2976 if (len != 1 && len != 4)
2979 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2981 num = atoi(t->value);
2983 avio_wb32(pb, size);
2984 ffio_wfourcc(pb, name);
2985 avio_wb32(pb, size - 8);
2986 ffio_wfourcc(pb, "data");
2987 avio_wb32(pb, 0x15);
2989 if (len==4) avio_wb32(pb, num);
2990 else avio_w8 (pb, num);
2995 /* iTunes meta data list */
2996 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2999 int64_t pos = avio_tell(pb);
3000 avio_wb32(pb, 0); /* size */
3001 ffio_wfourcc(pb, "ilst");
3002 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3003 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3004 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3005 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3006 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3007 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3008 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3009 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3010 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3012 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3013 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3014 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
3015 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3016 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3017 mov_write_string_metadata(s, pb, "desc", "description",1);
3018 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3019 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3020 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3021 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3022 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3023 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3024 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3025 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3026 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3027 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3028 mov_write_trkn_tag(pb, mov, s, 0); // track number
3029 mov_write_trkn_tag(pb, mov, s, 1); // disc number
3030 mov_write_tmpo_tag(pb, s);
3031 return update_size(pb, pos);
3034 /* iTunes meta data tag */
3035 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3039 int64_t pos = avio_tell(pb);
3040 avio_wb32(pb, 0); /* size */
3041 ffio_wfourcc(pb, "meta");
3043 mov_write_itunes_hdlr_tag(pb, mov, s);
3044 mov_write_ilst_tag(pb, mov, s);
3045 size = update_size(pb, pos);
3049 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3050 const char *name, const char *key)
3053 AVDictionaryEntry *t;
3055 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3058 len = strlen(t->value);
3061 avio_wb32(pb, size);
3062 ffio_wfourcc(pb, name);
3063 avio_write(pb, t->value, len);
3069 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3073 GET_UTF8(val, *b++, return -1;)
3076 avio_wb16(pb, 0x00);
3080 static uint16_t language_code(const char *str)
3082 return (((str[0] - 0x60) & 0x1F) << 10) +
3083 (((str[1] - 0x60) & 0x1F) << 5) +
3084 (( str[2] - 0x60) & 0x1F);
3087 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3088 const char *tag, const char *str)
3090 int64_t pos = avio_tell(pb);
3091 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3092 if (!t || !utf8len(t->value))
3094 avio_wb32(pb, 0); /* size */
3095 ffio_wfourcc(pb, tag); /* type */
3096 avio_wb32(pb, 0); /* version + flags */
3097 if (!strcmp(tag, "yrrc"))
3098 avio_wb16(pb, atoi(t->value));
3100 avio_wb16(pb, language_code("eng")); /* language */
3101 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3102 if (!strcmp(tag, "albm") &&
3103 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3104 avio_w8(pb, atoi(t->value));
3106 return update_size(pb, pos);
3109 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3111 int64_t pos = avio_tell(pb);
3112 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3114 avio_wb32(pb, 0); // size
3115 ffio_wfourcc(pb, "chpl");
3116 avio_wb32(pb, 0x01000000); // version + flags
3117 avio_wb32(pb, 0); // unknown
3118 avio_w8(pb, nb_chapters);
3120 for (i = 0; i < nb_chapters; i++) {
3121 AVChapter *c = s->chapters[i];
3122 AVDictionaryEntry *t;
3123 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3125 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3126 int len = FFMIN(strlen(t->value), 255);
3128 avio_write(pb, t->value, len);
3132 return update_size(pb, pos);
3135 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3138 AVIOContext *pb_buf;
3142 ret = avio_open_dyn_buf(&pb_buf);
3146 if (mov->mode & MODE_3GP) {
3147 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3148 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3149 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3150 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3151 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3152 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3153 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3154 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3155 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3156 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3157 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3158 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3159 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3160 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3161 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3162 // currently ignored by mov.c
3163 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3164 // add support for libquicktime, this atom is also actually read by mov.c
3165 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3166 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3167 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3168 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3169 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3170 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3171 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3173 /* iTunes meta data */
3174 mov_write_meta_tag(pb_buf, mov, s);
3177 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3178 mov_write_chpl_tag(pb_buf, s);
3180 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3181 avio_wb32(pb, size + 8);
3182 ffio_wfourcc(pb, "udta");
3183 avio_write(pb, buf, size);
3190 static void mov_write_psp_udta_tag(AVIOContext *pb,
3191 const char *str, const char *lang, int type)
3193 int len = utf8len(str) + 1;
3196 avio_wb16(pb, len * 2 + 10); /* size */
3197 avio_wb32(pb, type); /* type */
3198 avio_wb16(pb, language_code(lang)); /* language */
3199 avio_wb16(pb, 0x01); /* ? */
3200 ascii_to_wc(pb, str);
3203 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3205 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3209 pos = avio_tell(pb);
3210 avio_wb32(pb, 0); /* size placeholder*/
3211 ffio_wfourcc(pb, "uuid");
3212 ffio_wfourcc(pb, "USMT");
3213 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3214 avio_wb32(pb, 0xbb88695c);
3215 avio_wb32(pb, 0xfac9c740);
3217 pos2 = avio_tell(pb);
3218 avio_wb32(pb, 0); /* size placeholder*/
3219 ffio_wfourcc(pb, "MTDT");
3223 avio_wb16(pb, 0x0C); /* size */
3224 avio_wb32(pb, 0x0B); /* type */
3225 avio_wb16(pb, language_code("und")); /* language */
3226 avio_wb16(pb, 0x0); /* ? */
3227 avio_wb16(pb, 0x021C); /* data */
3229 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3230 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3231 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3232 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3234 update_size(pb, pos2);
3235 return update_size(pb, pos);
3241 static void build_chunks(MOVTrack *trk)
3244 MOVIentry *chunk = &trk->cluster[0];
3245 uint64_t chunkSize = chunk->size;
3246 chunk->chunkNum = 1;
3247 if (trk->chunkCount)
3249 trk->chunkCount = 1;
3250 for (i = 1; i<trk->entry; i++){
3251 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3252 chunkSize + trk->cluster[i].size < (1<<20)){
3253 chunkSize += trk->cluster[i].size;
3254 chunk->samples_in_chunk += trk->cluster[i].entries;
3256 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3257 chunk=&trk->cluster[i];
3258 chunkSize = chunk->size;
3264 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3268 int64_t pos = avio_tell(pb);
3269 avio_wb32(pb, 0); /* size placeholder*/
3270 ffio_wfourcc(pb, "moov");
3272 for (i = 0; i < mov->nb_streams; i++) {
3273 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3276 mov->tracks[i].time = mov->time;
3277 mov->tracks[i].track_id = i + 1;
3279 if (mov->tracks[i].entry)
3280 build_chunks(&mov->tracks[i]);
3283 if (mov->chapter_track)
3284 for (i = 0; i < s->nb_streams; i++) {
3285 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3286 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3288 for (i = 0; i < mov->nb_streams; i++) {
3289 MOVTrack *track = &mov->tracks[i];
3290 if (track->tag == MKTAG('r','t','p',' ')) {
3291 track->tref_tag = MKTAG('h','i','n','t');
3292 track->tref_id = mov->tracks[track->src_track].track_id;
3293 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3294 int * fallback, size;
3295 fallback = (int*)av_stream_get_side_data(track->st,
3296 AV_PKT_DATA_FALLBACK_TRACK,
3298 if (fallback != NULL && size == sizeof(int)) {
3299 if (*fallback >= 0 && *fallback < mov->nb_streams) {
3300 track->tref_tag = MKTAG('f','a','l','l');
3301 track->tref_id = mov->tracks[*fallback].track_id;
3306 for (i = 0; i < mov->nb_streams; i++) {
3307 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3308 int src_trk = mov->tracks[i].src_track;
3309 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3310 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3311 //src_trk may have a different timescale than the tmcd track
3312 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3313 mov->tracks[i].timescale,
3314 mov->tracks[src_trk].timescale);
3318 mov_write_mvhd_tag(pb, mov);
3319 if (mov->mode != MODE_MOV && !mov->iods_skip)
3320 mov_write_iods_tag(pb, mov);
3321 for (i = 0; i < mov->nb_streams; i++) {
3322 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3323 int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3328 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3329 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3331 if (mov->mode == MODE_PSP)
3332 mov_write_uuidusmt_tag(pb, s);
3334 mov_write_udta_tag(pb, mov, s);
3336 return update_size(pb, pos);
3339 static void param_write_int(AVIOContext *pb, const char *name, int value)
3341 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3344 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3346 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3349 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3352 len = FFMIN(sizeof(buf) / 2 - 1, len);
3353 ff_data_to_hex(buf, value, len, 0);
3354 buf[2 * len] = '\0';
3355 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3358 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3360 int64_t pos = avio_tell(pb);
3362 static const uint8_t uuid[] = {
3363 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3364 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3368 ffio_wfourcc(pb, "uuid");
3369 avio_write(pb, uuid, sizeof(uuid));
3372 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3373 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3374 avio_printf(pb, "<head>\n");
3375 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3376 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3378 avio_printf(pb, "</head>\n");
3379 avio_printf(pb, "<body>\n");
3380 avio_printf(pb, "<switch>\n");
3381 for (i = 0; i < mov->nb_streams; i++) {
3382 MOVTrack *track = &mov->tracks[i];
3384 /* track->track_id is initialized in write_moov, and thus isn't known
3386 int track_id = i + 1;
3388 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3390 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3395 avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3396 (int64_t)track->par->bit_rate);
3397 param_write_int(pb, "systemBitrate", track->par->bit_rate);
3398 param_write_int(pb, "trackID", track_id);
3399 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3400 if (track->par->codec_id == AV_CODEC_ID_H264) {
3402 int size = track->par->extradata_size;
3403 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
3405 param_write_hex(pb, "CodecPrivateData",
3406 ptr ? ptr : track->par->extradata,
3410 param_write_string(pb, "FourCC", "H264");
3411 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
3412 param_write_string(pb, "FourCC", "WVC1");
3413 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3414 track->par->extradata_size);
3416 param_write_int(pb, "MaxWidth", track->par->width);
3417 param_write_int(pb, "MaxHeight", track->par->height);
3418 param_write_int(pb, "DisplayWidth", track->par->width);
3419 param_write_int(pb, "DisplayHeight", track->par->height);
3421 if (track->par->codec_id == AV_CODEC_ID_AAC) {
3422 switch (track->par->profile)
3424 case FF_PROFILE_AAC_HE_V2:
3425 param_write_string(pb, "FourCC", "AACP");
3427 case FF_PROFILE_AAC_HE:
3428 param_write_string(pb, "FourCC", "AACH");
3431 param_write_string(pb, "FourCC", "AACL");
3433 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
3434 param_write_string(pb, "FourCC", "WMAP");
3436 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
3437 track->par->extradata_size);
3438 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3439 track->par->codec_id));
3440 param_write_int(pb, "Channels", track->par->channels);
3441 param_write_int(pb, "SamplingRate", track->par->sample_rate);
3442 param_write_int(pb, "BitsPerSample", 16);
3443 param_write_int(pb, "PacketSize", track->par->block_align ?
3444 track->par->block_align : 4);
3446 avio_printf(pb, "</%s>\n", type);
3448 avio_printf(pb, "</switch>\n");
3449 avio_printf(pb, "</body>\n");
3450 avio_printf(pb, "</smil>\n");
3452 return update_size(pb, pos);
3455 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3458 ffio_wfourcc(pb, "mfhd");
3460 avio_wb32(pb, mov->fragments);
3464 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3466 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3467 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3470 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3471 MOVTrack *track, int64_t moof_offset)
3473 int64_t pos = avio_tell(pb);
3474 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3475 MOV_TFHD_BASE_DATA_OFFSET;
3476 if (!track->entry) {
3477 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3479 flags |= MOV_TFHD_DEFAULT_FLAGS;
3481 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3482 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3483 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3484 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3485 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3488 /* Don't set a default sample size, the silverlight player refuses
3489 * to play files with that set. Don't set a default sample duration,
3490 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3491 * file format says it MUST NOT be set. */
3492 if (track->mode == MODE_ISM)
3493 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3494 MOV_TFHD_BASE_DATA_OFFSET);
3496 avio_wb32(pb, 0); /* size placeholder */
3497 ffio_wfourcc(pb, "tfhd");
3498 avio_w8(pb, 0); /* version */
3499 avio_wb24(pb, flags);
3501 avio_wb32(pb, track->track_id); /* track-id */
3502 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3503 avio_wb64(pb, moof_offset);
3504 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3505 track->default_duration = get_cluster_duration(track, 0);
3506 avio_wb32(pb, track->default_duration);
3508 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3509 track->default_size = track->entry ? track->cluster[0].size : 1;
3510 avio_wb32(pb, track->default_size);
3512 track->default_size = -1;
3514 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3515 /* Set the default flags based on the second sample, if available.
3516 * If the first sample is different, that can be signaled via a separate field. */
3517 if (track->entry > 1)
3518 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3520 track->default_sample_flags =
3521 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
3522 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3523 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3524 avio_wb32(pb, track->default_sample_flags);
3527 return update_size(pb, pos);
3530 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3531 MOVTrack *track, int moof_size,
3534 int64_t pos = avio_tell(pb);
3535 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3538 for (i = first; i < end; i++) {
3539 if (get_cluster_duration(track, i) != track->default_duration)
3540 flags |= MOV_TRUN_SAMPLE_DURATION;
3541 if (track->cluster[i].size != track->default_size)
3542 flags |= MOV_TRUN_SAMPLE_SIZE;
3543 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3544 flags |= MOV_TRUN_SAMPLE_FLAGS;
3546 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3547 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3548 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3549 if (track->flags & MOV_TRACK_CTTS)
3550 flags |= MOV_TRUN_SAMPLE_CTS;
3552 avio_wb32(pb, 0); /* size placeholder */
3553 ffio_wfourcc(pb, "trun");
3554 avio_w8(pb, 0); /* version */
3555 avio_wb24(pb, flags);
3557 avio_wb32(pb, end - first); /* sample count */
3558 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3559 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3561 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3563 avio_wb32(pb, moof_size + 8 + track->data_offset +
3564 track->cluster[first].pos); /* data offset */
3565 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3566 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3568 for (i = first; i < end; i++) {
3569 if (flags & MOV_TRUN_SAMPLE_DURATION)
3570 avio_wb32(pb, get_cluster_duration(track, i));
3571 if (flags & MOV_TRUN_SAMPLE_SIZE)
3572 avio_wb32(pb, track->cluster[i].size);
3573 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3574 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3575 if (flags & MOV_TRUN_SAMPLE_CTS)
3576 avio_wb32(pb, track->cluster[i].cts);
3579 mov->first_trun = 0;
3580 return update_size(pb, pos);
3583 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3585 int64_t pos = avio_tell(pb);
3586 static const uint8_t uuid[] = {
3587 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3588 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3591 avio_wb32(pb, 0); /* size placeholder */
3592 ffio_wfourcc(pb, "uuid");
3593 avio_write(pb, uuid, sizeof(uuid));
3596 avio_wb64(pb, track->start_dts + track->frag_start +
3597 track->cluster[0].cts);
3598 avio_wb64(pb, track->end_pts -
3599 (track->cluster[0].dts + track->cluster[0].cts));
3601 return update_size(pb, pos);
3604 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3605 MOVTrack *track, int entry)
3607 int n = track->nb_frag_info - 1 - entry, i;
3608 int size = 8 + 16 + 4 + 1 + 16*n;
3609 static const uint8_t uuid[] = {
3610 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3611 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3617 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3618 avio_wb32(pb, size);
3619 ffio_wfourcc(pb, "uuid");
3620 avio_write(pb, uuid, sizeof(uuid));
3624 for (i = 0; i < n; i++) {
3625 int index = entry + 1 + i;
3626 avio_wb64(pb, track->frag_info[index].time);
3627 avio_wb64(pb, track->frag_info[index].duration);
3629 if (n < mov->ism_lookahead) {
3630 int free_size = 16 * (mov->ism_lookahead - n);
3631 avio_wb32(pb, free_size);
3632 ffio_wfourcc(pb, "free");
3633 ffio_fill(pb, 0, free_size - 8);
3639 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3642 int64_t pos = avio_tell(pb);
3644 for (i = 0; i < mov->ism_lookahead; i++) {
3645 /* Update the tfrf tag for the last ism_lookahead fragments,
3646 * nb_frag_info - 1 is the next fragment to be written. */
3647 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3649 avio_seek(pb, pos, SEEK_SET);
3653 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3657 for (i = 0; i < mov->nb_streams; i++) {
3658 MOVTrack *track = &mov->tracks[i];
3659 MOVFragmentInfo *info;
3660 if ((tracks >= 0 && i != tracks) || !track->entry)
3662 track->nb_frag_info++;
3663 if (track->nb_frag_info >= track->frag_info_capacity) {
3664 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3665 if (av_reallocp_array(&track->frag_info,
3667 sizeof(*track->frag_info)))
3668 return AVERROR(ENOMEM);
3669 track->frag_info_capacity = new_capacity;
3671 info = &track->frag_info[track->nb_frag_info - 1];
3672 info->offset = avio_tell(pb);
3674 // Try to recreate the original pts for the first packet
3675 // from the fields we have stored
3676 info->time = track->start_dts + track->frag_start +
3677 track->cluster[0].cts;
3678 info->duration = track->end_pts -
3679 (track->cluster[0].dts + track->cluster[0].cts);
3680 // If the pts is less than zero, we will have trimmed
3681 // away parts of the media track using an edit list,
3682 // and the corresponding start presentation time is zero.
3683 if (info->time < 0) {
3684 info->duration += info->time;
3687 info->tfrf_offset = 0;
3688 mov_write_tfrf_tags(pb, mov, track);
3693 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3695 int64_t pos = avio_tell(pb);
3697 avio_wb32(pb, 0); /* size */
3698 ffio_wfourcc(pb, "tfdt");
3699 avio_w8(pb, 1); /* version */
3701 avio_wb64(pb, track->frag_start);
3702 return update_size(pb, pos);
3705 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3706 MOVTrack *track, int64_t moof_offset,
3709 int64_t pos = avio_tell(pb);
3711 avio_wb32(pb, 0); /* size placeholder */
3712 ffio_wfourcc(pb, "traf");
3714 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3715 if (mov->mode != MODE_ISM)
3716 mov_write_tfdt_tag(pb, track);
3717 for (i = 1; i < track->entry; i++) {
3718 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3719 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3723 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3724 if (mov->mode == MODE_ISM) {
3725 mov_write_tfxd_tag(pb, track);
3727 if (mov->ism_lookahead) {
3728 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3730 if (track->nb_frag_info > 0) {
3731 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3732 if (!info->tfrf_offset)
3733 info->tfrf_offset = avio_tell(pb);
3735 avio_wb32(pb, 8 + size);
3736 ffio_wfourcc(pb, "free");
3737 for (i = 0; i < size; i++)
3742 return update_size(pb, pos);
3745 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3746 int tracks, int moof_size)
3748 int64_t pos = avio_tell(pb);
3751 avio_wb32(pb, 0); /* size placeholder */
3752 ffio_wfourcc(pb, "moof");
3753 mov->first_trun = 1;
3755 mov_write_mfhd_tag(pb, mov);
3756 for (i = 0; i < mov->nb_streams; i++) {
3757 MOVTrack *track = &mov->tracks[i];
3758 if (tracks >= 0 && i != tracks)
3762 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3765 return update_size(pb, pos);
3768 static int mov_write_sidx_tag(AVIOContext *pb,
3769 MOVTrack *track, int ref_size, int total_sidx_size)
3771 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3772 int64_t presentation_time, duration, offset;
3773 int starts_with_SAP, i, entries;
3777 presentation_time = track->start_dts + track->frag_start +
3778 track->cluster[0].cts;
3779 duration = track->end_pts -
3780 (track->cluster[0].dts + track->cluster[0].cts);
3781 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3783 // pts<0 should be cut away using edts
3784 if (presentation_time < 0) {
3785 duration += presentation_time;
3786 presentation_time = 0;
3789 entries = track->nb_frag_info;
3792 presentation_time = track->frag_info[0].time;
3795 avio_wb32(pb, 0); /* size */
3796 ffio_wfourcc(pb, "sidx");
3797 avio_w8(pb, 1); /* version */
3799 avio_wb32(pb, track->track_id); /* reference_ID */
3800 avio_wb32(pb, track->timescale); /* timescale */
3801 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3802 offset_pos = avio_tell(pb);
3803 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3804 avio_wb16(pb, 0); /* reserved */
3806 avio_wb16(pb, entries); /* reference_count */
3807 for (i = 0; i < entries; i++) {
3808 if (!track->entry) {
3809 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3810 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3812 duration = track->frag_info[i].duration;
3813 ref_size = track->frag_info[i].size;
3814 starts_with_SAP = 1;
3816 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3817 avio_wb32(pb, duration); /* subsegment_duration */
3818 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3821 end_pos = avio_tell(pb);
3822 offset = pos + total_sidx_size - end_pos;
3823 avio_seek(pb, offset_pos, SEEK_SET);
3824 avio_wb64(pb, offset);
3825 avio_seek(pb, end_pos, SEEK_SET);
3826 return update_size(pb, pos);
3829 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3830 int tracks, int ref_size)
3833 AVIOContext *avio_buf;
3835 for (round = 0; round < 2; round++) {
3836 // First run one round to calculate the total size of all
3838 // This would be much simpler if we'd only write one sidx
3839 // atom, for the first track in the moof.
3841 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3846 for (i = 0; i < mov->nb_streams; i++) {
3847 MOVTrack *track = &mov->tracks[i];
3848 if (tracks >= 0 && i != tracks)
3850 // When writing a sidx for the full file, entry is 0, but
3851 // we want to include all tracks. ref_size is 0 in this case,
3852 // since we read it from frag_info instead.
3853 if (!track->entry && ref_size > 0)
3855 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3859 total_size = ffio_close_null_buf(avio_buf);
3864 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3867 AVIOContext *avio_buf;
3870 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3872 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3873 moof_size = ffio_close_null_buf(avio_buf);
3875 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3876 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3878 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3881 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3884 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3886 int64_t pos = avio_tell(pb);
3889 avio_wb32(pb, 0); /* size placeholder */
3890 ffio_wfourcc(pb, "tfra");
3891 avio_w8(pb, 1); /* version */
3894 avio_wb32(pb, track->track_id);
3895 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3896 avio_wb32(pb, track->nb_frag_info);
3897 for (i = 0; i < track->nb_frag_info; i++) {
3898 avio_wb64(pb, track->frag_info[i].time);
3899 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3900 avio_w8(pb, 1); /* traf number */
3901 avio_w8(pb, 1); /* trun number */
3902 avio_w8(pb, 1); /* sample number */
3905 return update_size(pb, pos);
3908 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3910 int64_t pos = avio_tell(pb);
3913 avio_wb32(pb, 0); /* size placeholder */
3914 ffio_wfourcc(pb, "mfra");
3915 /* An empty mfra atom is enough to indicate to the publishing point that
3916 * the stream has ended. */
3917 if (mov->flags & FF_MOV_FLAG_ISML)
3918 return update_size(pb, pos);
3920 for (i = 0; i < mov->nb_streams; i++) {
3921 MOVTrack *track = &mov->tracks[i];
3922 if (track->nb_frag_info)
3923 mov_write_tfra_tag(pb, track);
3927 ffio_wfourcc(pb, "mfro");
3928 avio_wb32(pb, 0); /* version + flags */
3929 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3931 return update_size(pb, pos);
3934 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3936 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3937 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3939 mov->mdat_pos = avio_tell(pb);
3940 avio_wb32(pb, 0); /* size placeholder*/
3941 ffio_wfourcc(pb, "mdat");
3945 /* TODO: This needs to be more general */
3946 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3948 MOVMuxContext *mov = s->priv_data;
3949 int64_t pos = avio_tell(pb);
3950 int has_h264 = 0, has_video = 0;
3954 for (i = 0; i < s->nb_streams; i++) {
3955 AVStream *st = s->streams[i];
3956 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
3958 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
3962 avio_wb32(pb, 0); /* size */
3963 ffio_wfourcc(pb, "ftyp");
3965 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3966 ffio_wfourcc(pb, mov->major_brand);
3967 else if (mov->mode == MODE_3GP) {
3968 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3969 minor = has_h264 ? 0x100 : 0x200;
3970 } else if (mov->mode & MODE_3G2) {
3971 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3972 minor = has_h264 ? 0x20000 : 0x10000;
3973 } else if (mov->mode == MODE_PSP)
3974 ffio_wfourcc(pb, "MSNV");
3975 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3976 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3977 else if (mov->mode == MODE_MP4)
3978 ffio_wfourcc(pb, "isom");
3979 else if (mov->mode == MODE_IPOD)
3980 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3981 else if (mov->mode == MODE_ISM)
3982 ffio_wfourcc(pb, "isml");
3983 else if (mov->mode == MODE_F4V)
3984 ffio_wfourcc(pb, "f4v ");
3986 ffio_wfourcc(pb, "qt ");
3988 avio_wb32(pb, minor);
3990 if (mov->mode == MODE_MOV)
3991 ffio_wfourcc(pb, "qt ");
3992 else if (mov->mode == MODE_ISM) {
3993 ffio_wfourcc(pb, "piff");
3994 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3995 ffio_wfourcc(pb, "isom");
3996 ffio_wfourcc(pb, "iso2");
3998 ffio_wfourcc(pb, "avc1");
4001 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
4002 // brand. This is compatible with users that don't understand tfdt.
4003 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
4004 ffio_wfourcc(pb, "iso6");
4006 if (mov->mode == MODE_3GP)
4007 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
4008 else if (mov->mode & MODE_3G2)
4009 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
4010 else if (mov->mode == MODE_PSP)
4011 ffio_wfourcc(pb, "MSNV");
4012 else if (mov->mode == MODE_MP4)
4013 ffio_wfourcc(pb, "mp41");
4015 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4016 ffio_wfourcc(pb, "dash");
4018 return update_size(pb, pos);
4021 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
4023 AVStream *video_st = s->streams[0];
4024 AVCodecParameters *video_par = s->streams[0]->codecpar;
4025 AVCodecParameters *audio_par = s->streams[1]->codecpar;
4026 int audio_rate = audio_par->sample_rate;
4027 // TODO: should be avg_frame_rate
4028 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
4029 int audio_kbitrate = audio_par->bit_rate / 1000;
4030 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
4032 avio_wb32(pb, 0x94); /* size */
4033 ffio_wfourcc(pb, "uuid");
4034 ffio_wfourcc(pb, "PROF");
4036 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4037 avio_wb32(pb, 0xbb88695c);
4038 avio_wb32(pb, 0xfac9c740);
4040 avio_wb32(pb, 0x0); /* ? */
4041 avio_wb32(pb, 0x3); /* 3 sections ? */
4043 avio_wb32(pb, 0x14); /* size */
4044 ffio_wfourcc(pb, "FPRF");
4045 avio_wb32(pb, 0x0); /* ? */
4046 avio_wb32(pb, 0x0); /* ? */
4047 avio_wb32(pb, 0x0); /* ? */
4049 avio_wb32(pb, 0x2c); /* size */
4050 ffio_wfourcc(pb, "APRF"); /* audio */
4052 avio_wb32(pb, 0x2); /* TrackID */
4053 ffio_wfourcc(pb, "mp4a");
4054 avio_wb32(pb, 0x20f);
4056 avio_wb32(pb, audio_kbitrate);
4057 avio_wb32(pb, audio_kbitrate);
4058 avio_wb32(pb, audio_rate);
4059 avio_wb32(pb, audio_par->channels);
4061 avio_wb32(pb, 0x34); /* size */
4062 ffio_wfourcc(pb, "VPRF"); /* video */
4064 avio_wb32(pb, 0x1); /* TrackID */
4065 if (video_par->codec_id == AV_CODEC_ID_H264) {
4066 ffio_wfourcc(pb, "avc1");
4067 avio_wb16(pb, 0x014D);
4068 avio_wb16(pb, 0x0015);
4070 ffio_wfourcc(pb, "mp4v");
4071 avio_wb16(pb, 0x0000);
4072 avio_wb16(pb, 0x0103);
4075 avio_wb32(pb, video_kbitrate);
4076 avio_wb32(pb, video_kbitrate);
4077 avio_wb32(pb, frame_rate);
4078 avio_wb32(pb, frame_rate);
4079 avio_wb16(pb, video_par->width);
4080 avio_wb16(pb, video_par->height);
4081 avio_wb32(pb, 0x010001); /* ? */
4084 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
4086 MOVMuxContext *mov = s->priv_data;
4089 mov_write_ftyp_tag(pb,s);
4090 if (mov->mode == MODE_PSP) {
4091 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4092 for (i = 0; i < s->nb_streams; i++) {
4093 AVStream *st = s->streams[i];
4094 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4096 else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
4102 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4103 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4104 return AVERROR(EINVAL);
4106 mov_write_uuidprof_tag(pb, s);
4111 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4114 int i, closed_gop = 0;
4116 for (i = 0; i < pkt->size - 4; i++) {
4117 c = (c << 8) + pkt->data[i];
4118 if (c == 0x1b8) { // gop
4119 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4120 } else if (c == 0x100) { // pic
4121 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4122 if (!temp_ref || closed_gop) // I picture is not reordered
4123 *flags = MOV_SYNC_SAMPLE;
4125 *flags = MOV_PARTIAL_SYNC_SAMPLE;
4132 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4134 const uint8_t *start, *next, *end = pkt->data + pkt->size;
4135 int seq = 0, entry = 0;
4136 int key = pkt->flags & AV_PKT_FLAG_KEY;
4137 start = find_next_marker(pkt->data, end);
4138 for (next = start; next < end; start = next) {
4139 next = find_next_marker(start + 4, end);
4140 switch (AV_RB32(start)) {
4141 case VC1_CODE_SEQHDR:
4144 case VC1_CODE_ENTRYPOINT:
4147 case VC1_CODE_SLICE:
4148 trk->vc1_info.slices = 1;
4152 if (!trk->entry && trk->vc1_info.first_packet_seen)
4153 trk->vc1_info.first_frag_written = 1;
4154 if (!trk->entry && !trk->vc1_info.first_frag_written) {
4155 /* First packet in first fragment */
4156 trk->vc1_info.first_packet_seq = seq;
4157 trk->vc1_info.first_packet_entry = entry;
4158 trk->vc1_info.first_packet_seen = 1;
4159 } else if ((seq && !trk->vc1_info.packet_seq) ||
4160 (entry && !trk->vc1_info.packet_entry)) {
4162 for (i = 0; i < trk->entry; i++)
4163 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4164 trk->has_keyframes = 0;
4166 trk->vc1_info.packet_seq = 1;
4168 trk->vc1_info.packet_entry = 1;
4169 if (!trk->vc1_info.first_frag_written) {
4170 /* First fragment */
4171 if ((!seq || trk->vc1_info.first_packet_seq) &&
4172 (!entry || trk->vc1_info.first_packet_entry)) {
4173 /* First packet had the same headers as this one, readd the
4174 * sync sample flag. */
4175 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4176 trk->has_keyframes = 1;
4180 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4182 else if (trk->vc1_info.packet_seq)
4184 else if (trk->vc1_info.packet_entry)
4187 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4188 trk->has_keyframes++;
4192 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4194 MOVMuxContext *mov = s->priv_data;
4199 if (!track->mdat_buf)
4201 if (!mov->mdat_buf) {
4202 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4205 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4206 track->mdat_buf = NULL;
4208 offset = avio_tell(mov->mdat_buf);
4209 avio_write(mov->mdat_buf, buf, buf_size);
4212 for (i = track->entries_flushed; i < track->entry; i++)
4213 track->cluster[i].pos += offset;
4214 track->entries_flushed = track->entry;
4218 static int mov_flush_fragment(AVFormatContext *s, int force)
4220 MOVMuxContext *mov = s->priv_data;
4221 int i, first_track = -1;
4222 int64_t mdat_size = 0;
4225 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4228 for (i = 0; i < mov->nb_streams; i++) {
4229 MOVTrack *track = &mov->tracks[i];
4230 if (track->entry <= 1)
4232 // Sample durations are calculated as the diff of dts values,
4233 // but for the last sample in a fragment, we don't know the dts
4234 // of the first sample in the next fragment, so we have to rely
4235 // on what was set as duration in the AVPacket. Not all callers
4236 // set this though, so we might want to replace it with an
4237 // estimate if it currently is zero.
4238 if (get_cluster_duration(track, track->entry - 1) != 0)
4240 // Use the duration (i.e. dts diff) of the second last sample for
4241 // the last one. This is a wild guess (and fatal if it turns out
4242 // to be too long), but probably the best we can do - having a zero
4243 // duration is bad as well.
4244 track->track_duration += get_cluster_duration(track, track->entry - 2);
4245 track->end_pts += get_cluster_duration(track, track->entry - 2);
4246 if (!mov->missing_duration_warned) {
4247 av_log(s, AV_LOG_WARNING,
4248 "Estimating the duration of the last packet in a "
4249 "fragment, consider setting the duration field in "
4250 "AVPacket instead.\n");
4251 mov->missing_duration_warned = 1;
4255 if (!mov->moov_written) {
4256 int64_t pos = avio_tell(s->pb);
4258 int buf_size, moov_size;
4260 for (i = 0; i < mov->nb_streams; i++)
4261 if (!mov->tracks[i].entry)
4263 /* Don't write the initial moov unless all tracks have data */
4264 if (i < mov->nb_streams && !force)
4267 moov_size = get_moov_size(s);
4268 for (i = 0; i < mov->nb_streams; i++)
4269 mov->tracks[i].data_offset = pos + moov_size + 8;
4271 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4272 mov_write_identification(s->pb, s);
4273 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4276 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4277 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4278 mov->reserved_header_pos = avio_tell(s->pb);
4280 mov->moov_written = 1;
4284 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4285 mov->mdat_buf = NULL;
4286 avio_wb32(s->pb, buf_size + 8);
4287 ffio_wfourcc(s->pb, "mdat");
4288 avio_write(s->pb, buf, buf_size);
4291 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4292 mov->reserved_header_pos = avio_tell(s->pb);
4294 mov->moov_written = 1;
4296 for (i = 0; i < mov->nb_streams; i++) {
4297 if (mov->tracks[i].entry)
4298 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4299 mov->tracks[i].track_duration -
4300 mov->tracks[i].cluster[0].dts;
4301 mov->tracks[i].entry = 0;
4307 if (mov->frag_interleave) {
4308 for (i = 0; i < mov->nb_streams; i++) {
4309 MOVTrack *track = &mov->tracks[i];
4311 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4317 mdat_size = avio_tell(mov->mdat_buf);
4320 for (i = 0; i < mov->nb_streams; i++) {
4321 MOVTrack *track = &mov->tracks[i];
4322 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4323 track->data_offset = 0;
4325 track->data_offset = mdat_size;
4328 if (track->mdat_buf)
4329 mdat_size += avio_tell(track->mdat_buf);
4330 if (first_track < 0)
4337 for (i = 0; i < mov->nb_streams; i++) {
4338 MOVTrack *track = &mov->tracks[i];
4339 int buf_size, write_moof = 1, moof_tracks = -1;
4341 int64_t duration = 0;
4344 duration = track->start_dts + track->track_duration -
4345 track->cluster[0].dts;
4346 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4347 if (!track->mdat_buf)
4349 mdat_size = avio_tell(track->mdat_buf);
4352 write_moof = i == first_track;
4358 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4361 avio_wb32(s->pb, mdat_size + 8);
4362 ffio_wfourcc(s->pb, "mdat");
4366 track->frag_start += duration;
4368 track->entries_flushed = 0;
4369 if (!mov->frag_interleave) {
4370 if (!track->mdat_buf)
4372 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4373 track->mdat_buf = NULL;
4377 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4378 mov->mdat_buf = NULL;
4381 avio_write(s->pb, buf, buf_size);
4391 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
4393 MOVMuxContext *mov = s->priv_data;
4394 int had_moov = mov->moov_written;
4395 int ret = mov_flush_fragment(s, force);
4398 // If using delay_moov, the first flush only wrote the moov,
4399 // not the actual moof+mdat pair, thus flush once again.
4400 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4401 ret = mov_flush_fragment(s, force);
4405 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4407 MOVMuxContext *mov = s->priv_data;
4408 AVIOContext *pb = s->pb;
4409 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4410 AVCodecParameters *par = trk->par;
4411 unsigned int samples_in_chunk = 0;
4412 int size = pkt->size, ret = 0;
4413 uint8_t *reformatted_data = NULL;
4416 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4417 if (duration < 0 || duration > INT_MAX) {
4418 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4422 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4423 pkt->pts = AV_NOPTS_VALUE;
4426 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
4427 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
4428 return AVERROR(EINVAL);
4430 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4432 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4433 if (mov->frag_interleave && mov->fragments > 0) {
4434 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4435 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4440 if (!trk->mdat_buf) {
4441 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4446 if (!mov->mdat_buf) {
4447 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4454 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
4455 /* We must find out how many AMR blocks there are in one packet */
4456 static const uint16_t packed_size[16] =
4457 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4460 while (len < size && samples_in_chunk < 100) {
4461 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4464 if (samples_in_chunk > 1) {
4465 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4468 } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
4469 par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4470 samples_in_chunk = trk->par->frame_size;
4471 } else if (trk->sample_size)
4472 samples_in_chunk = size / trk->sample_size;
4474 samples_in_chunk = 1;
4476 /* copy extradata if it exists */
4477 if (trk->vos_len == 0 && par->extradata_size > 0 &&
4478 !TAG_IS_AVCI(trk->tag) &&
4479 (par->codec_id != AV_CODEC_ID_DNXHD)) {
4480 trk->vos_len = par->extradata_size;
4481 trk->vos_data = av_malloc(trk->vos_len);
4482 if (!trk->vos_data) {
4483 ret = AVERROR(ENOMEM);
4486 memcpy(trk->vos_data, par->extradata, trk->vos_len);
4489 if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4490 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4491 if (!s->streams[pkt->stream_index]->nb_frames) {
4492 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4493 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4494 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4497 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4499 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4500 /* from x264 or from bytestream h264 */
4501 /* nal reformating needed */
4502 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4503 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4505 avio_write(pb, reformatted_data, size);
4507 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4508 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
4514 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4517 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4518 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4519 /* extradata is Annex B, assume the bitstream is too and convert it */
4520 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4521 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4522 avio_write(pb, reformatted_data, size);
4524 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4526 #if CONFIG_AC3_PARSER
4527 } else if (par->codec_id == AV_CODEC_ID_EAC3) {
4528 size = handle_eac3(mov, pkt, trk);
4533 avio_write(pb, pkt->data, size);
4536 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4537 if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
4538 int nal_size_length = (par->extradata[4] & 0x3) + 1;
4539 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
4541 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
4548 avio_write(pb, pkt->data, size);
4552 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
4553 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4554 /* copy frame to create needed atoms */
4555 trk->vos_len = size;
4556 trk->vos_data = av_malloc(size);
4557 if (!trk->vos_data) {
4558 ret = AVERROR(ENOMEM);
4561 memcpy(trk->vos_data, pkt->data, size);
4564 if (trk->entry >= trk->cluster_capacity) {
4565 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4566 if (av_reallocp_array(&trk->cluster, new_capacity,
4567 sizeof(*trk->cluster))) {
4568 ret = AVERROR(ENOMEM);
4571 trk->cluster_capacity = new_capacity;
4574 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4575 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4576 trk->cluster[trk->entry].chunkNum = 0;
4577 trk->cluster[trk->entry].size = size;
4578 trk->cluster[trk->entry].entries = samples_in_chunk;
4579 trk->cluster[trk->entry].dts = pkt->dts;
4580 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4581 if (!trk->frag_discont) {
4582 /* First packet of a new fragment. We already wrote the duration
4583 * of the last packet of the previous fragment based on track_duration,
4584 * which might not exactly match our dts. Therefore adjust the dts
4585 * of this packet to be what the previous packets duration implies. */
4586 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4587 /* We also may have written the pts and the corresponding duration
4588 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
4589 * the next fragment. This means the cts of the first sample must
4590 * be the same in all fragments, unless end_pts was updated by
4591 * the packet causing the fragment to be written. */
4592 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
4593 mov->mode == MODE_ISM)
4594 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
4596 /* New fragment, but discontinuous from previous fragments.
4597 * Pretend the duration sum of the earlier fragments is
4598 * pkt->dts - trk->start_dts. */
4599 trk->frag_start = pkt->dts - trk->start_dts;
4600 trk->end_pts = AV_NOPTS_VALUE;
4601 trk->frag_discont = 0;
4605 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4606 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4607 /* Not using edit lists and shifting the first track to start from zero.
4608 * If the other streams start from a later timestamp, we won't be able
4609 * to signal the difference in starting time without an edit list.
4610 * Thus move the timestamp for this first sample to 0, increasing
4611 * its duration instead. */
4612 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4614 if (trk->start_dts == AV_NOPTS_VALUE) {
4615 trk->start_dts = pkt->dts;
4616 if (trk->frag_discont) {
4617 if (mov->use_editlist) {
4618 /* Pretend the whole stream started at pts=0, with earlier fragments
4619 * already written. If the stream started at pts=0, the duration sum
4620 * of earlier fragments would have been pkt->pts. */
4621 trk->frag_start = pkt->pts;
4622 trk->start_dts = pkt->dts - pkt->pts;
4624 /* Pretend the whole stream started at dts=0, with earlier fragments
4625 * already written, with a duration summing up to pkt->dts. */
4626 trk->frag_start = pkt->dts;
4629 trk->frag_discont = 0;
4630 } else if (pkt->dts && mov->moov_written)
4631 av_log(s, AV_LOG_WARNING,
4632 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4633 "already has been written. Set the delay_moov flag to handle "
4635 pkt->stream_index, pkt->dts);
4637 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4638 trk->last_sample_is_subtitle_end = 0;
4640 if (pkt->pts == AV_NOPTS_VALUE) {
4641 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4642 pkt->pts = pkt->dts;
4644 if (pkt->dts != pkt->pts)
4645 trk->flags |= MOV_TRACK_CTTS;
4646 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4647 trk->cluster[trk->entry].flags = 0;
4648 if (trk->start_cts == AV_NOPTS_VALUE)
4649 trk->start_cts = pkt->pts - pkt->dts;
4650 if (trk->end_pts == AV_NOPTS_VALUE)
4651 trk->end_pts = trk->cluster[trk->entry].dts +
4652 trk->cluster[trk->entry].cts + pkt->duration;
4654 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
4655 trk->cluster[trk->entry].cts +
4658 if (par->codec_id == AV_CODEC_ID_VC1) {
4659 mov_parse_vc1_frame(pkt, trk);
4660 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4661 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4662 trk->entry > 0) { // force sync sample for the first key frame
4663 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4664 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4665 trk->flags |= MOV_TRACK_STPS;
4667 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4669 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4670 trk->has_keyframes++;
4673 trk->sample_count += samples_in_chunk;
4674 mov->mdat_size += size;
4676 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4677 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4678 reformatted_data, size);
4683 av_free(reformatted_data);
4687 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4689 MOVMuxContext *mov = s->priv_data;
4690 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4691 AVCodecParameters *par = trk->par;
4692 int64_t frag_duration = 0;
4693 int size = pkt->size;
4695 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4697 for (i = 0; i < s->nb_streams; i++)
4698 mov->tracks[i].frag_discont = 1;
4699 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4703 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
4704 trk->start_dts = pkt->dts;
4705 if (pkt->pts != AV_NOPTS_VALUE)
4706 trk->start_cts = pkt->pts - pkt->dts;
4711 return 0; /* Discard 0 sized packets */
4714 if (trk->entry && pkt->stream_index < s->nb_streams)
4715 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4716 s->streams[pkt->stream_index]->time_base,
4718 if ((mov->max_fragment_duration &&
4719 frag_duration >= mov->max_fragment_duration) ||
4720 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4721 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4722 par->codec_type == AVMEDIA_TYPE_VIDEO &&
4723 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4724 if (frag_duration >= mov->min_fragment_duration) {
4725 // Set the duration of this track to line up with the next
4726 // sample in this track. This avoids relying on AVPacket
4727 // duration, but only helps for this particular track, not
4728 // for the other ones that are flushed at the same time.
4729 trk->track_duration = pkt->dts - trk->start_dts;
4730 if (pkt->pts != AV_NOPTS_VALUE)
4731 trk->end_pts = pkt->pts;
4733 trk->end_pts = pkt->dts;
4734 mov_auto_flush_fragment(s, 0);
4738 return ff_mov_write_packet(s, pkt);
4741 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4745 uint8_t data[2] = {0};
4748 av_init_packet(&end);
4749 end.size = sizeof(data);
4754 end.stream_index = stream_index;
4756 ret = mov_write_single_packet(s, &end);
4757 av_packet_unref(&end);
4762 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4765 mov_flush_fragment(s, 1);
4769 MOVMuxContext *mov = s->priv_data;
4770 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4773 return mov_write_single_packet(s, pkt); /* Passthrough. */
4776 * Subtitles require special handling.
4778 * 1) For full complaince, every track must have a sample at
4779 * dts == 0, which is rarely true for subtitles. So, as soon
4780 * as we see any packet with dts > 0, write an empty subtitle
4781 * at dts == 0 for any subtitle track with no samples in it.
4783 * 2) For each subtitle track, check if the current packet's
4784 * dts is past the duration of the last subtitle sample. If
4785 * so, we now need to write an end sample for that subtitle.
4787 * This must be done conditionally to allow for subtitles that
4788 * immediately replace each other, in which case an end sample
4789 * is not needed, and is, in fact, actively harmful.
4791 * 3) See mov_write_trailer for how the final end sample is
4794 for (i = 0; i < mov->nb_streams; i++) {
4795 MOVTrack *trk = &mov->tracks[i];
4798 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
4799 trk->track_duration < pkt->dts &&
4800 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4801 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4802 if (ret < 0) return ret;
4803 trk->last_sample_is_subtitle_end = 1;
4807 if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4808 AVPacket *opkt = pkt;
4809 int reshuffle_ret, ret;
4810 if (trk->is_unaligned_qt_rgb) {
4811 int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
4812 int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
4813 reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
4814 if (reshuffle_ret < 0)
4815 return reshuffle_ret;
4818 if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
4819 ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
4824 } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
4825 (trk->par->format == AV_PIX_FMT_GRAY8 ||
4826 trk->par->format == AV_PIX_FMT_MONOBLACK)) {
4827 for (i = 0; i < pkt->size; i++)
4828 pkt->data[i] = ~pkt->data[i];
4830 if (reshuffle_ret) {
4831 ret = mov_write_single_packet(s, pkt);
4834 av_packet_free(&pkt);
4839 return mov_write_single_packet(s, pkt);
4843 // QuickTime chapters involve an additional text track with the chapter names
4844 // as samples, and a tref pointing from the other tracks to the chapter one.
4845 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4849 MOVMuxContext *mov = s->priv_data;
4850 MOVTrack *track = &mov->tracks[tracknum];
4851 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4854 track->mode = mov->mode;
4855 track->tag = MKTAG('t','e','x','t');
4856 track->timescale = MOV_TIMESCALE;
4857 track->par = avcodec_parameters_alloc();
4859 return AVERROR(ENOMEM);
4860 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
4862 // These properties are required to make QT recognize the chapter track
4863 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4864 if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
4865 return AVERROR(ENOMEM);
4866 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
4868 if (avio_open_dyn_buf(&pb) >= 0) {
4872 /* Stub header (usually for Quicktime chapter track) */
4874 avio_wb32(pb, 0x01); // displayFlags
4875 avio_w8(pb, 0x00); // horizontal justification
4876 avio_w8(pb, 0x00); // vertical justification
4877 avio_w8(pb, 0x00); // bgColourRed
4878 avio_w8(pb, 0x00); // bgColourGreen
4879 avio_w8(pb, 0x00); // bgColourBlue
4880 avio_w8(pb, 0x00); // bgColourAlpha
4882 avio_wb16(pb, 0x00); // defTextBoxTop
4883 avio_wb16(pb, 0x00); // defTextBoxLeft
4884 avio_wb16(pb, 0x00); // defTextBoxBottom
4885 avio_wb16(pb, 0x00); // defTextBoxRight
4887 avio_wb16(pb, 0x00); // startChar
4888 avio_wb16(pb, 0x00); // endChar
4889 avio_wb16(pb, 0x01); // fontID
4890 avio_w8(pb, 0x00); // fontStyleFlags
4891 avio_w8(pb, 0x00); // fontSize
4892 avio_w8(pb, 0x00); // fgColourRed
4893 avio_w8(pb, 0x00); // fgColourGreen
4894 avio_w8(pb, 0x00); // fgColourBlue
4895 avio_w8(pb, 0x00); // fgColourAlpha
4897 avio_wb32(pb, 0x0D); // box size
4898 ffio_wfourcc(pb, "ftab"); // box atom name
4899 avio_wb16(pb, 0x01); // entry count
4901 avio_wb16(pb, 0x01); // font ID
4902 avio_w8(pb, 0x00); // font name length
4904 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4905 track->par->extradata = buf;
4906 track->par->extradata_size = size;
4913 for (i = 0; i < s->nb_chapters; i++) {
4914 AVChapter *c = s->chapters[i];
4915 AVDictionaryEntry *t;
4917 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4918 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4919 pkt.duration = end - pkt.dts;
4921 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4922 const char encd[12] = {
4923 0x00, 0x00, 0x00, 0x0C,
4925 0x00, 0x00, 0x01, 0x00 };
4926 len = strlen(t->value);
4927 pkt.size = len + 2 + 12;
4928 pkt.data = av_malloc(pkt.size);
4930 return AVERROR(ENOMEM);
4931 AV_WB16(pkt.data, len);
4932 memcpy(pkt.data + 2, t->value, len);
4933 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4934 ff_mov_write_packet(s, &pkt);
4935 av_freep(&pkt.data);
4942 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4945 MOVMuxContext *mov = s->priv_data;
4946 MOVTrack *track = &mov->tracks[index];
4947 AVStream *src_st = s->streams[src_index];
4949 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4950 AVRational rate = find_fps(s, src_st);
4952 /* compute the frame number */
4953 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4957 /* tmcd track based on video stream */
4958 track->mode = mov->mode;
4959 track->tag = MKTAG('t','m','c','d');
4960 track->src_track = src_index;
4961 track->timescale = mov->tracks[src_index].timescale;
4962 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4963 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4965 /* set st to src_st for metadata access*/
4968 /* encode context: tmcd data stream */
4969 track->par = avcodec_parameters_alloc();
4971 return AVERROR(ENOMEM);
4972 track->par->codec_type = AVMEDIA_TYPE_DATA;
4973 track->par->codec_tag = track->tag;
4974 track->st->avg_frame_rate = av_inv_q(rate);
4976 /* the tmcd track just contains one packet with the frame number */
4977 pkt.data = av_malloc(pkt.size);
4979 return AVERROR(ENOMEM);
4980 AV_WB32(pkt.data, tc.start);
4981 ret = ff_mov_write_packet(s, &pkt);
4987 * st->disposition controls the "enabled" flag in the tkhd tag.
4988 * QuickTime will not play a track if it is not enabled. So make sure
4989 * that one track of each type (audio, video, subtitle) is enabled.
4991 * Subtitles are special. For audio and video, setting "enabled" also
4992 * makes the track "default" (i.e. it is rendered when played). For
4993 * subtitles, an "enabled" subtitle is not rendered by default, but
4994 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4997 static void enable_tracks(AVFormatContext *s)
4999 MOVMuxContext *mov = s->priv_data;
5001 int enabled[AVMEDIA_TYPE_NB];
5002 int first[AVMEDIA_TYPE_NB];
5004 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5009 for (i = 0; i < s->nb_streams; i++) {
5010 AVStream *st = s->streams[i];
5012 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
5013 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
5016 if (first[st->codecpar->codec_type] < 0)
5017 first[st->codecpar->codec_type] = i;
5018 if (st->disposition & AV_DISPOSITION_DEFAULT) {
5019 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
5020 enabled[st->codecpar->codec_type]++;
5024 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
5026 case AVMEDIA_TYPE_VIDEO:
5027 case AVMEDIA_TYPE_AUDIO:
5028 case AVMEDIA_TYPE_SUBTITLE:
5030 mov->per_stream_grouping = 1;
5031 if (!enabled[i] && first[i] >= 0)
5032 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
5038 static void mov_free(AVFormatContext *s)
5040 MOVMuxContext *mov = s->priv_data;
5043 if (mov->chapter_track) {
5044 if (mov->tracks[mov->chapter_track].par)
5045 av_freep(&mov->tracks[mov->chapter_track].par->extradata);
5046 av_freep(&mov->tracks[mov->chapter_track].par);
5049 for (i = 0; i < mov->nb_streams; i++) {
5050 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
5051 ff_mov_close_hinting(&mov->tracks[i]);
5052 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
5053 av_freep(&mov->tracks[i].par);
5054 av_freep(&mov->tracks[i].cluster);
5055 av_freep(&mov->tracks[i].frag_info);
5057 if (mov->tracks[i].vos_len)
5058 av_freep(&mov->tracks[i].vos_data);
5060 ff_mov_cenc_free(&mov->tracks[i].cenc);
5063 av_freep(&mov->tracks);
5066 static uint32_t rgb_to_yuv(uint32_t rgb)
5071 r = (rgb >> 16) & 0xFF;
5072 g = (rgb >> 8) & 0xFF;
5075 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
5076 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
5077 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
5079 return (y << 16) | (cr << 8) | cb;
5082 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
5085 int i, width = 720, height = 480;
5086 int have_palette = 0, have_size = 0;
5087 uint32_t palette[16];
5088 char *cur = st->codecpar->extradata;
5090 while (cur && *cur) {
5091 if (strncmp("palette:", cur, 8) == 0) {
5093 count = sscanf(cur + 8,
5094 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5095 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5096 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5097 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
5098 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
5099 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
5100 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
5101 &palette[12], &palette[13], &palette[14], &palette[15]);
5103 for (i = 0; i < count; i++) {
5104 palette[i] = rgb_to_yuv(palette[i]);
5107 } else if (!strncmp("size:", cur, 5)) {
5108 sscanf(cur + 5, "%dx%d", &width, &height);
5111 if (have_palette && have_size)
5113 cur += strcspn(cur, "\n\r");
5114 cur += strspn(cur, "\n\r");
5117 track->vos_data = av_malloc(16*4);
5118 if (!track->vos_data)
5119 return AVERROR(ENOMEM);
5120 for (i = 0; i < 16; i++) {
5121 AV_WB32(track->vos_data + i * 4, palette[i]);
5123 track->vos_len = 16 * 4;
5125 st->codecpar->width = width;
5126 st->codecpar->height = track->height = height;
5131 static int mov_write_header(AVFormatContext *s)
5133 AVIOContext *pb = s->pb;
5134 MOVMuxContext *mov = s->priv_data;
5135 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
5136 int i, ret, hint_track = 0, tmcd_track = 0;
5140 /* Default mode == MP4 */
5141 mov->mode = MODE_MP4;
5144 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
5145 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
5146 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
5147 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
5148 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
5149 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
5150 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
5153 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5154 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
5156 /* Set the FRAGMENT flag if any of the fragmentation methods are
5158 if (mov->max_fragment_duration || mov->max_fragment_size ||
5159 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
5160 FF_MOV_FLAG_FRAG_KEYFRAME |
5161 FF_MOV_FLAG_FRAG_CUSTOM))
5162 mov->flags |= FF_MOV_FLAG_FRAGMENT;
5164 /* Set other implicit flags immediately */
5165 if (mov->mode == MODE_ISM)
5166 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
5167 FF_MOV_FLAG_FRAGMENT;
5168 if (mov->flags & FF_MOV_FLAG_DASH)
5169 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
5170 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
5172 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5173 mov->reserved_moov_size = -1;
5176 if (mov->use_editlist < 0) {
5177 mov->use_editlist = 1;
5178 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5179 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5180 // If we can avoid needing an edit list by shifting the
5181 // tracks, prefer that over (trying to) write edit lists
5182 // in fragmented output.
5183 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5184 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5185 mov->use_editlist = 0;
5188 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5189 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5190 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5192 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5193 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5195 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5196 * if the latter is set that's enough and omit_tfhd_offset doesn't
5197 * add anything extra on top of that. */
5198 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5199 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5200 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5202 if (mov->frag_interleave &&
5203 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5204 av_log(s, AV_LOG_ERROR,
5205 "Sample interleaving in fragments is mutually exclusive with "
5206 "omit_tfhd_offset and separate_moof\n");
5207 return AVERROR(EINVAL);
5210 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5211 * is enabled, we don't support non-seekable output at all. */
5212 if (!s->pb->seekable &&
5213 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5214 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5215 return AVERROR(EINVAL);
5218 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5219 if ((ret = mov_write_identification(pb, s)) < 0)
5223 mov->nb_streams = s->nb_streams;
5224 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5225 mov->chapter_track = mov->nb_streams++;
5227 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5228 /* Add hint tracks for each audio and video stream */
5229 hint_track = mov->nb_streams;
5230 for (i = 0; i < s->nb_streams; i++) {
5231 AVStream *st = s->streams[i];
5232 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
5233 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5239 if (mov->mode == MODE_MOV || mov->mode == MODE_MP4) {
5240 tmcd_track = mov->nb_streams;
5242 /* +1 tmcd track for each video stream with a timecode */
5243 for (i = 0; i < s->nb_streams; i++) {
5244 AVStream *st = s->streams[i];
5245 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
5246 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
5247 mov->nb_meta_tmcd++;
5250 /* check if there is already a tmcd track to remux */
5251 if (mov->nb_meta_tmcd) {
5252 for (i = 0; i < s->nb_streams; i++) {
5253 AVStream *st = s->streams[i];
5254 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
5255 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5256 "so timecode metadata are now ignored\n");
5257 mov->nb_meta_tmcd = 0;
5262 mov->nb_streams += mov->nb_meta_tmcd;
5265 // Reserve an extra stream for chapters for the case where chapters
5266 // are written in the trailer
5267 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5269 return AVERROR(ENOMEM);
5271 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
5272 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
5273 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
5275 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
5276 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
5277 mov->encryption_key_len, AES_CTR_KEY_SIZE);
5278 ret = AVERROR(EINVAL);
5282 if (mov->encryption_kid_len != CENC_KID_SIZE) {
5283 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
5284 mov->encryption_kid_len, CENC_KID_SIZE);
5285 ret = AVERROR(EINVAL);
5289 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
5290 mov->encryption_scheme_str);
5291 ret = AVERROR(EINVAL);
5296 for (i = 0; i < s->nb_streams; i++) {
5297 AVStream *st= s->streams[i];
5298 MOVTrack *track= &mov->tracks[i];
5299 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5302 track->par = st->codecpar;
5303 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5304 if (track->language < 0)
5305 track->language = 0;
5306 track->mode = mov->mode;
5307 track->tag = mov_find_codec_tag(s, track);
5309 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5310 "codec not currently supported in container\n",
5311 avcodec_get_name(st->codecpar->codec_id), i);
5312 ret = AVERROR(EINVAL);
5315 /* If hinting of this track is enabled by a later hint track,
5316 * this is updated. */
5317 track->hint_track = -1;
5318 track->start_dts = AV_NOPTS_VALUE;
5319 track->start_cts = AV_NOPTS_VALUE;
5320 track->end_pts = AV_NOPTS_VALUE;
5321 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5322 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5323 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5324 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5325 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
5326 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5327 ret = AVERROR(EINVAL);
5330 track->height = track->tag >> 24 == 'n' ? 486 : 576;
5332 if (mov->video_track_timescale) {
5333 track->timescale = mov->video_track_timescale;
5335 track->timescale = st->time_base.den;
5336 while(track->timescale < 10000)
5337 track->timescale *= 2;
5339 if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
5340 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
5341 ret = AVERROR(EINVAL);
5344 if (track->mode == MODE_MOV && track->timescale > 100000)
5345 av_log(s, AV_LOG_WARNING,
5346 "WARNING codec timebase is very high. If duration is too long,\n"
5347 "file may not be playable by quicktime. Specify a shorter timebase\n"
5348 "or choose different container.\n");
5349 if (track->mode == MODE_MOV &&
5350 track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
5351 track->tag == MKTAG('r','a','w',' ')) {
5352 enum AVPixelFormat pix_fmt = track->par->format;
5353 if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
5354 pix_fmt = AV_PIX_FMT_MONOWHITE;
5355 track->is_unaligned_qt_rgb =
5356 pix_fmt == AV_PIX_FMT_RGB24 ||
5357 pix_fmt == AV_PIX_FMT_BGR24 ||
5358 pix_fmt == AV_PIX_FMT_PAL8 ||
5359 pix_fmt == AV_PIX_FMT_GRAY8 ||
5360 pix_fmt == AV_PIX_FMT_MONOWHITE ||
5361 pix_fmt == AV_PIX_FMT_MONOBLACK;
5363 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5364 track->timescale = st->codecpar->sample_rate;
5365 if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
5366 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
5367 track->audio_vbr = 1;
5368 }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
5369 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
5370 st->codecpar->codec_id == AV_CODEC_ID_ILBC){
5371 if (!st->codecpar->block_align) {
5372 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
5373 ret = AVERROR(EINVAL);
5376 track->sample_size = st->codecpar->block_align;
5377 }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
5378 track->audio_vbr = 1;
5380 track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
5382 if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
5383 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
5384 track->audio_vbr = 1;
5386 if (track->mode != MODE_MOV &&
5387 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5388 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
5389 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
5390 i, track->par->sample_rate);
5391 ret = AVERROR(EINVAL);
5394 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
5395 i, track->par->sample_rate);
5398 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5399 track->timescale = st->time_base.den;
5400 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
5401 track->timescale = st->time_base.den;
5403 track->timescale = MOV_TIMESCALE;
5406 track->height = st->codecpar->height;
5407 /* The ism specific timescale isn't mandatory, but is assumed by
5408 * some tools, such as mp4split. */
5409 if (mov->mode == MODE_ISM)
5410 track->timescale = 10000000;
5412 avpriv_set_pts_info(st, 64, 1, track->timescale);
5414 /* copy extradata if it exists */
5415 if (st->codecpar->extradata_size) {
5416 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
5417 mov_create_dvd_sub_decoder_specific_info(track, st);
5418 else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
5419 track->vos_len = st->codecpar->extradata_size;
5420 track->vos_data = av_malloc(track->vos_len);
5421 if (!track->vos_data) {
5422 ret = AVERROR(ENOMEM);
5425 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
5429 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
5430 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
5431 track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
5438 for (i = 0; i < s->nb_streams; i++) {
5440 AVStream *st= s->streams[i];
5441 MOVTrack *track= &mov->tracks[i];
5443 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
5444 track->par->channel_layout != AV_CH_LAYOUT_MONO)
5447 for (j = 0; j < s->nb_streams; j++) {
5448 AVStream *stj= s->streams[j];
5449 MOVTrack *trackj= &mov->tracks[j];
5453 if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
5454 trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
5455 trackj->language != track->language ||
5456 trackj->tag != track->tag
5459 track->multichannel_as_mono++;
5466 if (mov->reserved_moov_size){
5467 mov->reserved_header_pos = avio_tell(pb);
5468 if (mov->reserved_moov_size > 0)
5469 avio_skip(pb, mov->reserved_moov_size);
5472 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5473 /* If no fragmentation options have been set, set a default. */
5474 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5475 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5476 !mov->max_fragment_duration && !mov->max_fragment_size)
5477 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5479 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5480 mov->reserved_header_pos = avio_tell(pb);
5481 mov_write_mdat_tag(pb, mov);
5484 ff_parse_creation_time_metadata(s, &mov->time, 1);
5486 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5488 if (mov->chapter_track)
5489 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5492 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5493 /* Initialize the hint tracks for each audio and video stream */
5494 for (i = 0; i < s->nb_streams; i++) {
5495 AVStream *st = s->streams[i];
5496 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
5497 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
5498 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5505 if (mov->nb_meta_tmcd) {
5506 /* Initialize the tmcd tracks */
5507 for (i = 0; i < s->nb_streams; i++) {
5508 AVStream *st = s->streams[i];
5511 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
5513 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5516 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5525 if (mov->flags & FF_MOV_FLAG_ISML)
5526 mov_write_isml_manifest(pb, mov);
5528 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5529 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5530 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5533 mov->moov_written = 1;
5534 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5535 mov->reserved_header_pos = avio_tell(pb);
5544 static int get_moov_size(AVFormatContext *s)
5547 AVIOContext *moov_buf;
5548 MOVMuxContext *mov = s->priv_data;
5550 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5552 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5554 return ffio_close_null_buf(moov_buf);
5557 static int get_sidx_size(AVFormatContext *s)
5561 MOVMuxContext *mov = s->priv_data;
5563 if ((ret = ffio_open_null_buf(&buf)) < 0)
5565 mov_write_sidx_tags(buf, mov, -1, 0);
5566 return ffio_close_null_buf(buf);
5570 * This function gets the moov size if moved to the top of the file: the chunk
5571 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5572 * entries) when the moov is moved to the beginning, so the size of the moov
5573 * would change. It also updates the chunk offset tables.
5575 static int compute_moov_size(AVFormatContext *s)
5577 int i, moov_size, moov_size2;
5578 MOVMuxContext *mov = s->priv_data;
5580 moov_size = get_moov_size(s);
5584 for (i = 0; i < mov->nb_streams; i++)
5585 mov->tracks[i].data_offset += moov_size;
5587 moov_size2 = get_moov_size(s);
5591 /* if the size changed, we just switched from stco to co64 and need to
5592 * update the offsets */
5593 if (moov_size2 != moov_size)
5594 for (i = 0; i < mov->nb_streams; i++)
5595 mov->tracks[i].data_offset += moov_size2 - moov_size;
5600 static int compute_sidx_size(AVFormatContext *s)
5603 MOVMuxContext *mov = s->priv_data;
5605 sidx_size = get_sidx_size(s);
5609 for (i = 0; i < mov->nb_streams; i++)
5610 mov->tracks[i].data_offset += sidx_size;
5615 static int shift_data(AVFormatContext *s)
5617 int ret = 0, moov_size;
5618 MOVMuxContext *mov = s->priv_data;
5619 int64_t pos, pos_end = avio_tell(s->pb);
5620 uint8_t *buf, *read_buf[2];
5621 int read_buf_id = 0;
5623 AVIOContext *read_pb;
5625 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5626 moov_size = compute_sidx_size(s);
5628 moov_size = compute_moov_size(s);
5632 buf = av_malloc(moov_size * 2);
5634 return AVERROR(ENOMEM);
5636 read_buf[1] = buf + moov_size;
5638 /* Shift the data: the AVIO context of the output can only be used for
5639 * writing, so we re-open the same output, but for reading. It also avoids
5640 * a read/seek/write/seek back and forth. */
5642 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
5644 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5645 "the second pass (faststart)\n", s->filename);
5649 /* mark the end of the shift to up to the last data we wrote, and get ready
5651 pos_end = avio_tell(s->pb);
5652 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
5654 /* start reading at where the new moov will be placed */
5655 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
5656 pos = avio_tell(read_pb);
5658 #define READ_BLOCK do { \
5659 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5663 /* shift data by chunk of at most moov_size */
5668 n = read_size[read_buf_id];
5671 avio_write(s->pb, read_buf[read_buf_id], n);
5673 } while (pos < pos_end);
5674 ff_format_io_close(s, &read_pb);
5681 static int mov_write_trailer(AVFormatContext *s)
5683 MOVMuxContext *mov = s->priv_data;
5684 AVIOContext *pb = s->pb;
5690 * Before actually writing the trailer, make sure that there are no
5691 * dangling subtitles, that need a terminating sample.
5693 for (i = 0; i < mov->nb_streams; i++) {
5694 MOVTrack *trk = &mov->tracks[i];
5695 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
5696 !trk->last_sample_is_subtitle_end) {
5697 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5698 trk->last_sample_is_subtitle_end = 1;
5702 // If there were no chapters when the header was written, but there
5703 // are chapters now, write them in the trailer. This only works
5704 // when we are not doing fragments.
5705 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5706 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5707 mov->chapter_track = mov->nb_streams++;
5708 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5713 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5714 moov_pos = avio_tell(pb);
5716 /* Write size of mdat tag */
5717 if (mov->mdat_size + 8 <= UINT32_MAX) {
5718 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5719 avio_wb32(pb, mov->mdat_size + 8);
5721 /* overwrite 'wide' placeholder atom */
5722 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5723 /* special value: real atom size will be 64 bit value after
5726 ffio_wfourcc(pb, "mdat");
5727 avio_wb64(pb, mov->mdat_size + 16);
5729 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
5731 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5732 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5733 res = shift_data(s);
5736 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5737 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5739 } else if (mov->reserved_moov_size > 0) {
5741 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5743 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
5745 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5746 res = AVERROR(EINVAL);
5749 avio_wb32(pb, size);
5750 ffio_wfourcc(pb, "free");
5751 ffio_fill(pb, 0, size - 8);
5752 avio_seek(pb, moov_pos, SEEK_SET);
5754 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5759 mov_auto_flush_fragment(s, 1);
5760 for (i = 0; i < mov->nb_streams; i++)
5761 mov->tracks[i].data_offset = 0;
5762 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
5764 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5765 res = shift_data(s);
5768 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);
5774 mov_write_mfra_tag(pb, mov);
5784 #if CONFIG_MOV_MUXER
5786 AVOutputFormat ff_mov_muxer = {
5788 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5789 .extensions = "mov",
5790 .priv_data_size = sizeof(MOVMuxContext),
5791 .audio_codec = AV_CODEC_ID_AAC,
5792 .video_codec = CONFIG_LIBX264_ENCODER ?
5793 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5794 .write_header = mov_write_header,
5795 .write_packet = mov_write_packet,
5796 .write_trailer = mov_write_trailer,
5797 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5798 .codec_tag = (const AVCodecTag* const []){
5799 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5801 .priv_class = &mov_muxer_class,
5804 #if CONFIG_TGP_MUXER
5806 AVOutputFormat ff_tgp_muxer = {
5808 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5809 .extensions = "3gp",
5810 .priv_data_size = sizeof(MOVMuxContext),
5811 .audio_codec = AV_CODEC_ID_AMR_NB,
5812 .video_codec = AV_CODEC_ID_H263,
5813 .write_header = mov_write_header,
5814 .write_packet = mov_write_packet,
5815 .write_trailer = mov_write_trailer,
5816 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5817 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5818 .priv_class = &tgp_muxer_class,
5821 #if CONFIG_MP4_MUXER
5823 AVOutputFormat ff_mp4_muxer = {
5825 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5826 .mime_type = "video/mp4",
5827 .extensions = "mp4",
5828 .priv_data_size = sizeof(MOVMuxContext),
5829 .audio_codec = AV_CODEC_ID_AAC,
5830 .video_codec = CONFIG_LIBX264_ENCODER ?
5831 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5832 .write_header = mov_write_header,
5833 .write_packet = mov_write_packet,
5834 .write_trailer = mov_write_trailer,
5835 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5836 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5837 .priv_class = &mp4_muxer_class,
5840 #if CONFIG_PSP_MUXER
5842 AVOutputFormat ff_psp_muxer = {
5844 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5845 .extensions = "mp4,psp",
5846 .priv_data_size = sizeof(MOVMuxContext),
5847 .audio_codec = AV_CODEC_ID_AAC,
5848 .video_codec = CONFIG_LIBX264_ENCODER ?
5849 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5850 .write_header = mov_write_header,
5851 .write_packet = mov_write_packet,
5852 .write_trailer = mov_write_trailer,
5853 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5854 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5855 .priv_class = &psp_muxer_class,
5858 #if CONFIG_TG2_MUXER
5860 AVOutputFormat ff_tg2_muxer = {
5862 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5863 .extensions = "3g2",
5864 .priv_data_size = sizeof(MOVMuxContext),
5865 .audio_codec = AV_CODEC_ID_AMR_NB,
5866 .video_codec = AV_CODEC_ID_H263,
5867 .write_header = mov_write_header,
5868 .write_packet = mov_write_packet,
5869 .write_trailer = mov_write_trailer,
5870 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5871 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5872 .priv_class = &tg2_muxer_class,
5875 #if CONFIG_IPOD_MUXER
5877 AVOutputFormat ff_ipod_muxer = {
5879 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5880 .mime_type = "video/mp4",
5881 .extensions = "m4v,m4a",
5882 .priv_data_size = sizeof(MOVMuxContext),
5883 .audio_codec = AV_CODEC_ID_AAC,
5884 .video_codec = AV_CODEC_ID_H264,
5885 .write_header = mov_write_header,
5886 .write_packet = mov_write_packet,
5887 .write_trailer = mov_write_trailer,
5888 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5889 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5890 .priv_class = &ipod_muxer_class,
5893 #if CONFIG_ISMV_MUXER
5895 AVOutputFormat ff_ismv_muxer = {
5897 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5898 .mime_type = "video/mp4",
5899 .extensions = "ismv,isma",
5900 .priv_data_size = sizeof(MOVMuxContext),
5901 .audio_codec = AV_CODEC_ID_AAC,
5902 .video_codec = AV_CODEC_ID_H264,
5903 .write_header = mov_write_header,
5904 .write_packet = mov_write_packet,
5905 .write_trailer = mov_write_trailer,
5906 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5907 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5908 .priv_class = &ismv_muxer_class,
5911 #if CONFIG_F4V_MUXER
5913 AVOutputFormat ff_f4v_muxer = {
5915 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5916 .mime_type = "application/f4v",
5917 .extensions = "f4v",
5918 .priv_data_size = sizeof(MOVMuxContext),
5919 .audio_codec = AV_CODEC_ID_AAC,
5920 .video_codec = AV_CODEC_ID_H264,
5921 .write_header = mov_write_header,
5922 .write_packet = mov_write_packet,
5923 .write_trailer = mov_write_trailer,
5924 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5925 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5926 .priv_class = &f4v_muxer_class,