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, .unit = "movflags" },
87 { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
88 { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
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->enc, "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->enc->extradata, track->enc->extradata_size);
517 return track->enc->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->enc->codec_id == AV_CODEC_ID_MP2 ||
577 track->enc->codec_id == AV_CODEC_ID_MP3) &&
578 track->enc->sample_rate > 24000)
579 avio_w8(pb, 0x6B); // 11172-3
581 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->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->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
586 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
587 else if (track->enc->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->enc->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(AVIOContext *pb, MOVTrack *track)
632 int64_t pos = avio_tell(pb);
634 avio_wl32(pb, track->tag); // store it byteswapped
635 track->enc->codec_tag = av_bswap16(track->tag >> 16);
636 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
638 return update_size(pb, pos);
641 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
644 int64_t pos = avio_tell(pb);
646 ffio_wfourcc(pb, "wfex");
647 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
649 return update_size(pb, pos);
652 static int mov_write_chan_tag(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->enc->codec_id,
658 track->enc->channel_layout,
661 av_log(track->enc, 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(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->enc->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->enc->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->enc->codec_id)) {
700 mov_write_enda_tag(pb);
701 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
702 mov_write_enda_tag_be(pb);
703 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
704 mov_write_amr_tag(pb, track);
705 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
706 mov_write_ac3_tag(pb, track);
707 } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
708 mov_write_eac3_tag(pb, track);
709 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
710 track->enc->codec_id == AV_CODEC_ID_QDM2) {
711 mov_write_extradata_tag(pb, track);
712 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
713 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
714 mov_write_ms_tag(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->enc->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(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->enc->codec_id))
909 tag = AV_RL32("lpcm");
911 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
912 mov_pcm_be_gt16(track->enc->codec_id) ||
913 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
914 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
915 track->enc->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->enc->sample_rate));
943 avio_wb32(pb, track->enc->channels);
944 avio_wb32(pb, 0x7F000000);
945 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
946 avio_wb32(pb, mov_get_lpcm_flags(track->enc->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->enc->channels);
952 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
953 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
954 avio_wb16(pb, 8); /* bits per sample */
955 else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
956 avio_wb16(pb, track->enc->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->enc->sample_rate <= UINT16_MAX ?
968 track->enc->sample_rate : 0);
969 avio_wb16(pb, 0); /* Reserved */
972 if (version == 1) { /* SoundDescription V1 extended info */
973 if (mov_pcm_le_gt16(track->enc->codec_id) ||
974 mov_pcm_be_gt16(track->enc->codec_id))
975 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
977 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
978 avio_wb32(pb, track->sample_size / track->enc->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->enc->codec_id == AV_CODEC_ID_AAC ||
985 track->enc->codec_id == AV_CODEC_ID_AC3 ||
986 track->enc->codec_id == AV_CODEC_ID_EAC3 ||
987 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
988 track->enc->codec_id == AV_CODEC_ID_ALAC ||
989 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
990 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
991 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
992 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
993 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
994 mov_write_wave_tag(pb, track);
995 else if (track->tag == MKTAG('m','p','4','a'))
996 mov_write_esds_tag(pb, track);
997 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
998 mov_write_amr_tag(pb, track);
999 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
1000 mov_write_ac3_tag(pb, track);
1001 else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
1002 mov_write_eac3_tag(pb, track);
1003 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
1004 mov_write_extradata_tag(pb, track);
1005 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1006 mov_write_wfex_tag(pb, track);
1007 else if (track->vos_len > 0)
1008 mov_write_glbl_tag(pb, track);
1010 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1011 mov_write_chan_tag(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->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1082 track->enc->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->enc->width);
1102 /* values below are based on samples created with quicktime and avid codecs */
1104 avio_wb32(pb, track->enc->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->enc->height);
1110 avio_wb32(pb, 1); /* unknown */
1111 avio_wb32(pb, 0); /* unknown */
1112 if (track->enc->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->enc->extradata_size >= 12 &&
1129 !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1130 avio_wb32(pb, track->enc->extradata[11]);
1137 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1139 int tag = track->enc->codec_tag;
1141 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1144 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1145 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1146 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1147 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1148 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1149 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1150 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1151 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1152 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1153 else if (track->enc->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->enc->codec_tag;
1173 // keep original tag for subs, ipod supports both formats
1174 if (!(track->enc->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->enc->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->enc->width == 720) { /* SD */
1193 if (track->enc->height == 480) { /* NTSC */
1194 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1195 else tag = MKTAG('d','v','c',' ');
1196 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1197 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1198 else tag = MKTAG('d','v','p','p');
1199 } else if (track->enc->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->enc->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->codec->time_base.den, st->codec->time_base.num};
1216 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1217 if (av_timecode_check_frame_rate(rate) < 0) {
1218 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1219 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1220 rate = st->avg_frame_rate;
1226 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1228 int tag = track->enc->codec_tag;
1229 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1230 AVStream *st = track->st;
1231 int rate = av_q2d(find_fps(s, st));
1234 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1236 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1237 if (track->enc->width == 1280 && track->enc->height == 720) {
1239 if (rate == 24) tag = MKTAG('x','d','v','4');
1240 else if (rate == 25) tag = MKTAG('x','d','v','5');
1241 else if (rate == 30) tag = MKTAG('x','d','v','1');
1242 else if (rate == 50) tag = MKTAG('x','d','v','a');
1243 else if (rate == 60) tag = MKTAG('x','d','v','9');
1245 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1247 if (rate == 24) tag = MKTAG('x','d','v','6');
1248 else if (rate == 25) tag = MKTAG('x','d','v','7');
1249 else if (rate == 30) tag = MKTAG('x','d','v','8');
1251 if (rate == 25) tag = MKTAG('x','d','v','3');
1252 else if (rate == 30) tag = MKTAG('x','d','v','2');
1254 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1256 if (rate == 24) tag = MKTAG('x','d','v','d');
1257 else if (rate == 25) tag = MKTAG('x','d','v','e');
1258 else if (rate == 30) tag = MKTAG('x','d','v','f');
1260 if (rate == 25) tag = MKTAG('x','d','v','c');
1261 else if (rate == 30) tag = MKTAG('x','d','v','b');
1264 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1265 if (track->enc->width == 1280 && track->enc->height == 720) {
1267 if (rate == 24) tag = MKTAG('x','d','5','4');
1268 else if (rate == 25) tag = MKTAG('x','d','5','5');
1269 else if (rate == 30) tag = MKTAG('x','d','5','1');
1270 else if (rate == 50) tag = MKTAG('x','d','5','a');
1271 else if (rate == 60) tag = MKTAG('x','d','5','9');
1273 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1275 if (rate == 24) tag = MKTAG('x','d','5','d');
1276 else if (rate == 25) tag = MKTAG('x','d','5','e');
1277 else if (rate == 30) tag = MKTAG('x','d','5','f');
1279 if (rate == 25) tag = MKTAG('x','d','5','c');
1280 else if (rate == 30) tag = MKTAG('x','d','5','b');
1288 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1290 int tag = track->enc->codec_tag;
1291 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1292 AVStream *st = track->st;
1293 int rate = av_q2d(find_fps(s, st));
1296 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1298 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1299 if (track->enc->width == 960 && track->enc->height == 720) {
1301 if (rate == 24) tag = MKTAG('a','i','5','p');
1302 else if (rate == 25) tag = MKTAG('a','i','5','q');
1303 else if (rate == 30) tag = MKTAG('a','i','5','p');
1304 else if (rate == 50) tag = MKTAG('a','i','5','q');
1305 else if (rate == 60) tag = MKTAG('a','i','5','p');
1307 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1309 if (rate == 24) tag = MKTAG('a','i','5','3');
1310 else if (rate == 25) tag = MKTAG('a','i','5','2');
1311 else if (rate == 30) tag = MKTAG('a','i','5','3');
1313 if (rate == 50) tag = MKTAG('a','i','5','5');
1314 else if (rate == 60) tag = MKTAG('a','i','5','6');
1317 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1318 if (track->enc->width == 1280 && track->enc->height == 720) {
1320 if (rate == 24) tag = MKTAG('a','i','1','p');
1321 else if (rate == 25) tag = MKTAG('a','i','1','q');
1322 else if (rate == 30) tag = MKTAG('a','i','1','p');
1323 else if (rate == 50) tag = MKTAG('a','i','1','q');
1324 else if (rate == 60) tag = MKTAG('a','i','1','p');
1326 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1328 if (rate == 24) tag = MKTAG('a','i','1','3');
1329 else if (rate == 25) tag = MKTAG('a','i','1','2');
1330 else if (rate == 30) tag = MKTAG('a','i','1','3');
1332 if (rate == 25) tag = MKTAG('a','i','1','5');
1333 else if (rate == 50) tag = MKTAG('a','i','1','5');
1334 else if (rate == 60) tag = MKTAG('a','i','1','6');
1336 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1337 || track->enc->width == 3840 && track->enc->height == 2160
1338 || track->enc->width == 2048 && track->enc->height == 1080) {
1339 tag = MKTAG('a','i','v','x');
1346 static const struct {
1347 enum AVPixelFormat pix_fmt;
1350 } mov_pix_fmt_tags[] = {
1351 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1352 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1353 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1354 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1355 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1356 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1357 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1358 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1359 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1360 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1361 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1362 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1363 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1364 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1365 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1368 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1370 int tag = track->enc->codec_tag;
1372 enum AVPixelFormat pix_fmt;
1374 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1375 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1376 tag = mov_pix_fmt_tags[i].tag;
1377 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1378 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1383 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1384 track->enc->bits_per_coded_sample);
1385 if (tag == MKTAG('r','a','w',' ') &&
1386 track->enc->pix_fmt != pix_fmt &&
1387 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1388 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1389 av_get_pix_fmt_name(track->enc->pix_fmt));
1393 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1395 int tag = track->enc->codec_tag;
1397 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1398 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1399 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1400 track->enc->codec_id == AV_CODEC_ID_H263 ||
1401 track->enc->codec_id == AV_CODEC_ID_H264 ||
1402 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1403 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1404 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1405 tag = mov_get_dv_codec_tag(s, track);
1406 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1407 tag = mov_get_rawvideo_codec_tag(s, track);
1408 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1409 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1410 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1411 tag = mov_get_h264_codec_tag(s, track);
1412 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1413 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1414 if (!tag) { // if no mac fcc found, try with Microsoft tags
1415 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1417 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1418 "the file may be unplayable!\n");
1420 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1421 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1422 if (!tag) { // if no mac fcc found, try with Microsoft tags
1423 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1425 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1426 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1427 "the file may be unplayable!\n");
1430 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1431 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1437 static const AVCodecTag codec_3gp_tags[] = {
1438 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1439 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1440 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1441 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1442 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1443 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1444 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1445 { AV_CODEC_ID_NONE, 0 },
1448 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1449 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1450 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1451 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1452 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1453 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1454 { AV_CODEC_ID_NONE, 0 },
1457 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1461 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1462 tag = mp4_get_codec_tag(s, track);
1463 else if (track->mode == MODE_ISM) {
1464 tag = mp4_get_codec_tag(s, track);
1465 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1466 tag = MKTAG('w', 'm', 'a', ' ');
1467 } else if (track->mode == MODE_IPOD)
1468 tag = ipod_get_codec_tag(s, track);
1469 else if (track->mode & MODE_3GP)
1470 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1471 else if (track->mode == MODE_F4V)
1472 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1474 tag = mov_get_codec_tag(s, track);
1479 /** Write uuid atom.
1480 * Needed to make file play in iPods running newest firmware
1481 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1483 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1486 ffio_wfourcc(pb, "uuid");
1487 avio_wb32(pb, 0x6b6840f2);
1488 avio_wb32(pb, 0x5f244fc5);
1489 avio_wb32(pb, 0xba39a51b);
1490 avio_wb32(pb, 0xcf0323f3);
1495 static const uint16_t fiel_data[] = {
1496 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1499 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1501 unsigned mov_field_order = 0;
1502 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1503 mov_field_order = fiel_data[track->enc->field_order];
1507 ffio_wfourcc(pb, "fiel");
1508 avio_wb16(pb, mov_field_order);
1512 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1514 int64_t pos = avio_tell(pb);
1515 avio_wb32(pb, 0); /* size */
1516 avio_wl32(pb, track->tag); // store it byteswapped
1517 avio_wb32(pb, 0); /* Reserved */
1518 avio_wb16(pb, 0); /* Reserved */
1519 avio_wb16(pb, 1); /* Data-reference index */
1521 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1522 mov_write_esds_tag(pb, track);
1523 else if (track->enc->extradata_size)
1524 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1526 return update_size(pb, pos);
1529 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1532 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1533 track->enc->sample_aspect_ratio.den, INT_MAX);
1536 ffio_wfourcc(pb, "pasp");
1537 avio_wb32(pb, sar.num);
1538 avio_wb32(pb, sar.den);
1542 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1547 gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
1549 av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1552 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1553 av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1555 av_assert0(track->mode == MODE_MOV);
1557 ffio_wfourcc(pb, "gama");
1558 avio_wb32(pb, gama);
1562 av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1567 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1569 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1570 // Ref (MP4): ISO/IEC 14496-12:2012
1572 if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1573 track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1574 track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1575 if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1576 || (track->enc->width == 1280 && track->enc->height == 720)) {
1577 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1578 track->enc->color_primaries = AVCOL_PRI_BT709;
1579 } else if (track->enc->width == 720 && track->height == 576) {
1580 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1581 track->enc->color_primaries = AVCOL_PRI_BT470BG;
1582 } else if (track->enc->width == 720 &&
1583 (track->height == 486 || track->height == 480)) {
1584 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1585 track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
1587 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1589 switch (track->enc->color_primaries) {
1590 case AVCOL_PRI_BT709:
1591 track->enc->color_trc = AVCOL_TRC_BT709;
1592 track->enc->colorspace = AVCOL_SPC_BT709;
1594 case AVCOL_PRI_SMPTE170M:
1595 case AVCOL_PRI_BT470BG:
1596 track->enc->color_trc = AVCOL_TRC_BT709;
1597 track->enc->colorspace = AVCOL_SPC_SMPTE170M;
1602 /* We should only ever be called by MOV or MP4. */
1603 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1605 avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1606 ffio_wfourcc(pb, "colr");
1607 if (track->mode == MODE_MP4)
1608 ffio_wfourcc(pb, "nclx");
1610 ffio_wfourcc(pb, "nclc");
1611 switch (track->enc->color_primaries) {
1612 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1613 case AVCOL_PRI_SMPTE170M:
1614 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1615 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1616 default: avio_wb16(pb, 2);
1618 switch (track->enc->color_trc) {
1619 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1620 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1621 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1622 default: avio_wb16(pb, 2);
1624 switch (track->enc->colorspace) {
1625 case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1626 case AVCOL_SPC_BT470BG:
1627 case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1628 case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1629 default: avio_wb16(pb, 2);
1632 if (track->mode == MODE_MP4) {
1633 int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
1634 avio_w8(pb, full_range << 7);
1641 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1643 AVDictionaryEntry *encoder;
1644 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1645 || (track->enc->width == 1440 && track->enc->height == 1080)
1646 || (track->enc->width == 1920 && track->enc->height == 1080);
1648 if (track->mode == MODE_MOV &&
1649 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1650 av_strlcpy(compressor_name, encoder->value, 32);
1651 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1652 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1653 AVStream *st = track->st;
1654 int rate = av_q2d(find_fps(NULL, st));
1655 av_strlcatf(compressor_name, len, "XDCAM");
1656 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1657 av_strlcatf(compressor_name, len, " HD422");
1658 } else if(track->enc->width == 1440) {
1659 av_strlcatf(compressor_name, len, " HD");
1661 av_strlcatf(compressor_name, len, " EX");
1663 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1665 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1669 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1671 int64_t pos = avio_tell(pb);
1672 char compressor_name[32] = { 0 };
1675 avio_wb32(pb, 0); /* size */
1676 if (mov->encryption_scheme != MOV_ENC_NONE) {
1677 ffio_wfourcc(pb, "encv");
1679 avio_wl32(pb, track->tag); // store it byteswapped
1681 avio_wb32(pb, 0); /* Reserved */
1682 avio_wb16(pb, 0); /* Reserved */
1683 avio_wb16(pb, 1); /* Data-reference index */
1685 avio_wb16(pb, 0); /* Codec stream version */
1686 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1687 if (track->mode == MODE_MOV) {
1688 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1689 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1690 avio_wb32(pb, 0); /* Temporal Quality */
1691 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1693 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1694 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1697 avio_wb32(pb, 0); /* Reserved */
1698 avio_wb32(pb, 0); /* Reserved */
1699 avio_wb32(pb, 0); /* Reserved */
1701 avio_wb16(pb, track->enc->width); /* Video width */
1702 avio_wb16(pb, track->height); /* Video height */
1703 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1704 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1705 avio_wb32(pb, 0); /* Data size (= 0) */
1706 avio_wb16(pb, 1); /* Frame count (= 1) */
1708 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1709 find_compressor(compressor_name, 32, track);
1710 avio_w8(pb, strlen(compressor_name));
1711 avio_write(pb, compressor_name, 31);
1713 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1714 avio_wb16(pb, track->enc->bits_per_coded_sample);
1716 avio_wb16(pb, 0x18); /* Reserved */
1717 avio_wb16(pb, 0xffff); /* Reserved */
1718 if (track->tag == MKTAG('m','p','4','v'))
1719 mov_write_esds_tag(pb, track);
1720 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1721 mov_write_d263_tag(pb);
1722 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1723 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1724 mov_write_extradata_tag(pb, track);
1726 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1727 mov_write_avid_tag(pb, track);
1729 } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1730 mov_write_hvcc_tag(pb, track);
1731 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1732 mov_write_avcc_tag(pb, track);
1733 if (track->mode == MODE_IPOD)
1734 mov_write_uuid_tag_ipod(pb);
1735 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1736 mov_write_dvc1_tag(pb, track);
1737 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1738 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1739 /* Don't write any potential extradata here - the cropping
1740 * is signalled via the normal width/height fields. */
1741 } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1742 if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1743 mov_write_dpxe_tag(pb, track);
1744 } else if (track->vos_len > 0)
1745 mov_write_glbl_tag(pb, track);
1747 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1748 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1749 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1750 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1751 mov_write_fiel_tag(pb, track);
1753 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1754 if (track->mode == MODE_MOV)
1755 mov_write_gama_tag(pb, track, mov->gamma);
1757 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1759 if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1760 if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1761 mov_write_colr_tag(pb, track);
1763 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1766 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1767 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1768 mov_write_pasp_tag(pb, track);
1771 if (mov->encryption_scheme != MOV_ENC_NONE) {
1772 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
1775 /* extra padding for avid stsd */
1776 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1780 return update_size(pb, pos);
1783 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1785 int64_t pos = avio_tell(pb);
1786 avio_wb32(pb, 0); /* size */
1787 ffio_wfourcc(pb, "rtp ");
1788 avio_wb32(pb, 0); /* Reserved */
1789 avio_wb16(pb, 0); /* Reserved */
1790 avio_wb16(pb, 1); /* Data-reference index */
1792 avio_wb16(pb, 1); /* Hint track version */
1793 avio_wb16(pb, 1); /* Highest compatible version */
1794 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1796 avio_wb32(pb, 12); /* size */
1797 ffio_wfourcc(pb, "tims");
1798 avio_wb32(pb, track->timescale);
1800 return update_size(pb, pos);
1803 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1805 uint64_t str_size =strlen(reel_name);
1806 int64_t pos = avio_tell(pb);
1808 if (str_size >= UINT16_MAX){
1809 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1811 return AVERROR(EINVAL);
1814 avio_wb32(pb, 0); /* size */
1815 ffio_wfourcc(pb, "name"); /* Data format */
1816 avio_wb16(pb, str_size); /* string size */
1817 avio_wb16(pb, track->language); /* langcode */
1818 avio_write(pb, reel_name, str_size); /* reel name */
1819 return update_size(pb,pos);
1822 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1824 int64_t pos = avio_tell(pb);
1826 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1827 int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
1828 AVDictionaryEntry *t = NULL;
1830 if (nb_frames > 255) {
1831 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1832 return AVERROR(EINVAL);
1835 avio_wb32(pb, 0); /* size */
1836 ffio_wfourcc(pb, "tmcd"); /* Data format */
1837 avio_wb32(pb, 0); /* Reserved */
1838 avio_wb32(pb, 1); /* Data reference index */
1839 avio_wb32(pb, 0); /* Flags */
1840 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1841 avio_wb32(pb, track->timescale); /* Timescale */
1842 avio_wb32(pb, frame_duration); /* Frame duration */
1843 avio_w8(pb, nb_frames); /* Number of frames */
1844 avio_w8(pb, 0); /* Reserved */
1847 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1849 if (t && utf8len(t->value))
1850 mov_write_source_reference_tag(pb, track, t->value);
1852 avio_wb16(pb, 0); /* zero size */
1855 avio_wb32(pb, 0); /* size */
1856 ffio_wfourcc(pb, "tmcd"); /* Data format */
1857 avio_wb32(pb, 0); /* Reserved */
1858 avio_wb32(pb, 1); /* Data reference index */
1859 if (track->enc->extradata_size)
1860 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1862 return update_size(pb, pos);
1865 static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1867 int64_t pos = avio_tell(pb);
1868 avio_wb32(pb, 0); /* size */
1869 ffio_wfourcc(pb, "stsd");
1870 avio_wb32(pb, 0); /* version & flags */
1871 avio_wb32(pb, 1); /* entry count */
1872 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1873 mov_write_video_tag(pb, mov, track);
1874 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1875 mov_write_audio_tag(pb, mov, track);
1876 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1877 mov_write_subtitle_tag(pb, track);
1878 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1879 mov_write_rtp_tag(pb, track);
1880 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1881 mov_write_tmcd_tag(pb, track);
1882 return update_size(pb, pos);
1885 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1887 MOVStts *ctts_entries;
1888 uint32_t entries = 0;
1892 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1894 return AVERROR(ENOMEM);
1895 ctts_entries[0].count = 1;
1896 ctts_entries[0].duration = track->cluster[0].cts;
1897 for (i = 1; i < track->entry; i++) {
1898 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1899 ctts_entries[entries].count++; /* compress */
1902 ctts_entries[entries].duration = track->cluster[i].cts;
1903 ctts_entries[entries].count = 1;
1906 entries++; /* last one */
1907 atom_size = 16 + (entries * 8);
1908 avio_wb32(pb, atom_size); /* size */
1909 ffio_wfourcc(pb, "ctts");
1910 avio_wb32(pb, 0); /* version & flags */
1911 avio_wb32(pb, entries); /* entry count */
1912 for (i = 0; i < entries; i++) {
1913 avio_wb32(pb, ctts_entries[i].count);
1914 avio_wb32(pb, ctts_entries[i].duration);
1916 av_free(ctts_entries);
1920 /* Time to sample atom */
1921 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1923 MOVStts *stts_entries = NULL;
1924 uint32_t entries = -1;
1928 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1929 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1931 return AVERROR(ENOMEM);
1932 stts_entries[0].count = track->sample_count;
1933 stts_entries[0].duration = 1;
1937 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1939 return AVERROR(ENOMEM);
1941 for (i = 0; i < track->entry; i++) {
1942 int duration = get_cluster_duration(track, i);
1943 if (i && duration == stts_entries[entries].duration) {
1944 stts_entries[entries].count++; /* compress */
1947 stts_entries[entries].duration = duration;
1948 stts_entries[entries].count = 1;
1951 entries++; /* last one */
1953 atom_size = 16 + (entries * 8);
1954 avio_wb32(pb, atom_size); /* size */
1955 ffio_wfourcc(pb, "stts");
1956 avio_wb32(pb, 0); /* version & flags */
1957 avio_wb32(pb, entries); /* entry count */
1958 for (i = 0; i < entries; i++) {
1959 avio_wb32(pb, stts_entries[i].count);
1960 avio_wb32(pb, stts_entries[i].duration);
1962 av_free(stts_entries);
1966 static int mov_write_dref_tag(AVIOContext *pb)
1968 avio_wb32(pb, 28); /* size */
1969 ffio_wfourcc(pb, "dref");
1970 avio_wb32(pb, 0); /* version & flags */
1971 avio_wb32(pb, 1); /* entry count */
1973 avio_wb32(pb, 0xc); /* size */
1974 //FIXME add the alis and rsrc atom
1975 ffio_wfourcc(pb, "url ");
1976 avio_wb32(pb, 1); /* version & flags */
1981 static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1983 int64_t pos = avio_tell(pb);
1986 avio_wb32(pb, 0); /* size */
1987 ffio_wfourcc(pb, "stbl");
1988 mov_write_stsd_tag(pb, mov, track);
1989 mov_write_stts_tag(pb, track);
1990 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1991 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1992 track->has_keyframes && track->has_keyframes < track->entry)
1993 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1994 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1995 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1996 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1997 track->flags & MOV_TRACK_CTTS && track->entry) {
1999 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
2002 mov_write_stsc_tag(pb, track);
2003 mov_write_stsz_tag(pb, track);
2004 mov_write_stco_tag(pb, track);
2005 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
2006 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2008 return update_size(pb, pos);
2011 static int mov_write_dinf_tag(AVIOContext *pb)
2013 int64_t pos = avio_tell(pb);
2014 avio_wb32(pb, 0); /* size */
2015 ffio_wfourcc(pb, "dinf");
2016 mov_write_dref_tag(pb);
2017 return update_size(pb, pos);
2020 static int mov_write_nmhd_tag(AVIOContext *pb)
2023 ffio_wfourcc(pb, "nmhd");
2028 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2030 int64_t pos = avio_tell(pb);
2031 const char *font = "Lucida Grande";
2032 avio_wb32(pb, 0); /* size */
2033 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2034 avio_wb32(pb, 0); /* version & flags */
2035 avio_wb16(pb, 0); /* text font */
2036 avio_wb16(pb, 0); /* text face */
2037 avio_wb16(pb, 12); /* text size */
2038 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2039 avio_wb16(pb, 0x0000); /* text color (red) */
2040 avio_wb16(pb, 0x0000); /* text color (green) */
2041 avio_wb16(pb, 0x0000); /* text color (blue) */
2042 avio_wb16(pb, 0xffff); /* background color (red) */
2043 avio_wb16(pb, 0xffff); /* background color (green) */
2044 avio_wb16(pb, 0xffff); /* background color (blue) */
2045 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2046 avio_write(pb, font, strlen(font)); /* font name */
2047 return update_size(pb, pos);
2050 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2052 int64_t pos = avio_tell(pb);
2053 avio_wb32(pb, 0); /* size */
2054 ffio_wfourcc(pb, "gmhd");
2055 avio_wb32(pb, 0x18); /* gmin size */
2056 ffio_wfourcc(pb, "gmin");/* generic media info */
2057 avio_wb32(pb, 0); /* version & flags */
2058 avio_wb16(pb, 0x40); /* graphics mode = */
2059 avio_wb16(pb, 0x8000); /* opColor (r?) */
2060 avio_wb16(pb, 0x8000); /* opColor (g?) */
2061 avio_wb16(pb, 0x8000); /* opColor (b?) */
2062 avio_wb16(pb, 0); /* balance */
2063 avio_wb16(pb, 0); /* reserved */
2066 * This special text atom is required for
2067 * Apple Quicktime chapters. The contents
2068 * don't appear to be documented, so the
2069 * bytes are copied verbatim.
2071 if (track->tag != MKTAG('c','6','0','8')) {
2072 avio_wb32(pb, 0x2C); /* size */
2073 ffio_wfourcc(pb, "text");
2074 avio_wb16(pb, 0x01);
2075 avio_wb32(pb, 0x00);
2076 avio_wb32(pb, 0x00);
2077 avio_wb32(pb, 0x00);
2078 avio_wb32(pb, 0x01);
2079 avio_wb32(pb, 0x00);
2080 avio_wb32(pb, 0x00);
2081 avio_wb32(pb, 0x00);
2082 avio_wb32(pb, 0x00004000);
2083 avio_wb16(pb, 0x0000);
2086 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2087 int64_t tmcd_pos = avio_tell(pb);
2088 avio_wb32(pb, 0); /* size */
2089 ffio_wfourcc(pb, "tmcd");
2090 mov_write_tcmi_tag(pb, track);
2091 update_size(pb, tmcd_pos);
2093 return update_size(pb, pos);
2096 static int mov_write_smhd_tag(AVIOContext *pb)
2098 avio_wb32(pb, 16); /* size */
2099 ffio_wfourcc(pb, "smhd");
2100 avio_wb32(pb, 0); /* version & flags */
2101 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2102 avio_wb16(pb, 0); /* reserved */
2106 static int mov_write_vmhd_tag(AVIOContext *pb)
2108 avio_wb32(pb, 0x14); /* size (always 0x14) */
2109 ffio_wfourcc(pb, "vmhd");
2110 avio_wb32(pb, 0x01); /* version & flags */
2111 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2115 static int is_clcp_track(MOVTrack *track)
2117 return track->tag == MKTAG('c','7','0','8') ||
2118 track->tag == MKTAG('c','6','0','8');
2121 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2123 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2124 int64_t pos = avio_tell(pb);
2128 descr = "DataHandler";
2131 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2132 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2134 descr = "VideoHandler";
2135 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2137 descr = "SoundHandler";
2138 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2139 if (is_clcp_track(track)) {
2141 descr = "ClosedCaptionHandler";
2143 if (track->tag == MKTAG('t','x','3','g')) {
2145 } else if (track->tag == MKTAG('m','p','4','s')) {
2150 descr = "SubtitleHandler";
2152 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2154 descr = "HintHandler";
2155 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2157 descr = "TimeCodeHandler";
2160 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2161 track->enc->codec_tag);
2163 av_log(track->enc, AV_LOG_WARNING,
2164 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2165 tag_buf, track->enc->codec_tag);
2168 // hdlr.name is used by some players to identify the content title
2169 // of the track. So if an alternate handler description is
2170 // specified, use it.
2171 AVDictionaryEntry *t;
2172 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2173 if (t && utf8len(t->value))
2178 avio_wb32(pb, 0); /* size */
2179 ffio_wfourcc(pb, "hdlr");
2180 avio_wb32(pb, 0); /* Version & flags */
2181 avio_write(pb, hdlr, 4); /* handler */
2182 ffio_wfourcc(pb, hdlr_type); /* handler type */
2183 avio_wb32(pb, 0); /* reserved */
2184 avio_wb32(pb, 0); /* reserved */
2185 avio_wb32(pb, 0); /* reserved */
2186 if (!track || track->mode == MODE_MOV)
2187 avio_w8(pb, strlen(descr)); /* pascal string */
2188 avio_write(pb, descr, strlen(descr)); /* handler description */
2189 if (track && track->mode != MODE_MOV)
2190 avio_w8(pb, 0); /* c string */
2191 return update_size(pb, pos);
2194 static int mov_write_hmhd_tag(AVIOContext *pb)
2196 /* This atom must be present, but leaving the values at zero
2197 * seems harmless. */
2198 avio_wb32(pb, 28); /* size */
2199 ffio_wfourcc(pb, "hmhd");
2200 avio_wb32(pb, 0); /* version, flags */
2201 avio_wb16(pb, 0); /* maxPDUsize */
2202 avio_wb16(pb, 0); /* avgPDUsize */
2203 avio_wb32(pb, 0); /* maxbitrate */
2204 avio_wb32(pb, 0); /* avgbitrate */
2205 avio_wb32(pb, 0); /* reserved */
2209 static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2211 int64_t pos = avio_tell(pb);
2214 avio_wb32(pb, 0); /* size */
2215 ffio_wfourcc(pb, "minf");
2216 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2217 mov_write_vmhd_tag(pb);
2218 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2219 mov_write_smhd_tag(pb);
2220 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2221 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2222 mov_write_gmhd_tag(pb, track);
2224 mov_write_nmhd_tag(pb);
2226 } else if (track->tag == MKTAG('r','t','p',' ')) {
2227 mov_write_hmhd_tag(pb);
2228 } else if (track->tag == MKTAG('t','m','c','d')) {
2229 mov_write_gmhd_tag(pb, track);
2231 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2232 mov_write_hdlr_tag(pb, NULL);
2233 mov_write_dinf_tag(pb);
2234 if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2236 return update_size(pb, pos);
2239 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2242 int version = track->track_duration < INT32_MAX ? 0 : 1;
2244 if (track->mode == MODE_ISM)
2247 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2248 ffio_wfourcc(pb, "mdhd");
2249 avio_w8(pb, version);
2250 avio_wb24(pb, 0); /* flags */
2252 avio_wb64(pb, track->time);
2253 avio_wb64(pb, track->time);
2255 avio_wb32(pb, track->time); /* creation time */
2256 avio_wb32(pb, track->time); /* modification time */
2258 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2259 if (!track->entry && mov->mode == MODE_ISM)
2260 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2261 else if (!track->entry)
2262 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2264 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2265 avio_wb16(pb, track->language); /* language */
2266 avio_wb16(pb, 0); /* reserved (quality) */
2268 if (version != 0 && track->mode == MODE_MOV) {
2269 av_log(NULL, AV_LOG_ERROR,
2270 "FATAL error, file duration too long for timebase, this file will not be\n"
2271 "playable with quicktime. Choose a different timebase or a different\n"
2272 "container format\n");
2278 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2281 int64_t pos = avio_tell(pb);
2284 avio_wb32(pb, 0); /* size */
2285 ffio_wfourcc(pb, "mdia");
2286 mov_write_mdhd_tag(pb, mov, track);
2287 mov_write_hdlr_tag(pb, track);
2288 if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2290 return update_size(pb, pos);
2293 /* transformation matrix
2297 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2298 int16_t d, int16_t tx, int16_t ty)
2300 avio_wb32(pb, a << 16); /* 16.16 format */
2301 avio_wb32(pb, b << 16); /* 16.16 format */
2302 avio_wb32(pb, 0); /* u in 2.30 format */
2303 avio_wb32(pb, c << 16); /* 16.16 format */
2304 avio_wb32(pb, d << 16); /* 16.16 format */
2305 avio_wb32(pb, 0); /* v in 2.30 format */
2306 avio_wb32(pb, tx << 16); /* 16.16 format */
2307 avio_wb32(pb, ty << 16); /* 16.16 format */
2308 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2311 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2312 MOVTrack *track, AVStream *st)
2314 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2315 track->timescale, AV_ROUND_UP);
2316 int version = duration < INT32_MAX ? 0 : 1;
2317 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2321 uint32_t *display_matrix = NULL;
2322 int display_matrix_size, i;
2325 if (mov->per_stream_grouping)
2328 group = st->codec->codec_type;
2330 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2331 &display_matrix_size);
2332 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2333 display_matrix = NULL;
2336 if (track->flags & MOV_TRACK_ENABLED)
2337 flags |= MOV_TKHD_FLAG_ENABLED;
2339 if (track->mode == MODE_ISM)
2342 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2343 ffio_wfourcc(pb, "tkhd");
2344 avio_w8(pb, version);
2345 avio_wb24(pb, flags);
2347 avio_wb64(pb, track->time);
2348 avio_wb64(pb, track->time);
2350 avio_wb32(pb, track->time); /* creation time */
2351 avio_wb32(pb, track->time); /* modification time */
2353 avio_wb32(pb, track->track_id); /* track-id */
2354 avio_wb32(pb, 0); /* reserved */
2355 if (!track->entry && mov->mode == MODE_ISM)
2356 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2357 else if (!track->entry)
2358 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2360 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2362 avio_wb32(pb, 0); /* reserved */
2363 avio_wb32(pb, 0); /* reserved */
2364 avio_wb16(pb, 0); /* layer */
2365 avio_wb16(pb, group); /* alternate group) */
2366 /* Volume, only for audio */
2367 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2368 avio_wb16(pb, 0x0100);
2371 avio_wb16(pb, 0); /* reserved */
2373 /* Matrix structure */
2374 if (st && st->metadata) {
2375 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2376 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2378 if (display_matrix) {
2379 for (i = 0; i < 9; i++)
2380 avio_wb32(pb, display_matrix[i]);
2381 } else if (rotation == 90) {
2382 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2383 } else if (rotation == 180) {
2384 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2385 } else if (rotation == 270) {
2386 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2388 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2390 /* Track width and height, for visual only */
2391 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2392 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2393 if (track->mode == MODE_MOV) {
2394 avio_wb32(pb, track->enc->width << 16);
2395 avio_wb32(pb, track->height << 16);
2397 int64_t track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2398 track->enc->width * 0x10000LL,
2399 st->sample_aspect_ratio.den);
2400 if (!track_width_1616 ||
2401 track->height != track->enc->height ||
2402 track_width_1616 > UINT32_MAX)
2403 track_width_1616 = track->enc->width * 0x10000U;
2404 avio_wb32(pb, track_width_1616);
2405 avio_wb32(pb, track->height * 0x10000U);
2414 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2416 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2417 track->enc->sample_aspect_ratio.den);
2419 int64_t pos = avio_tell(pb);
2421 avio_wb32(pb, 0); /* size */
2422 ffio_wfourcc(pb, "tapt");
2425 ffio_wfourcc(pb, "clef");
2427 avio_wb32(pb, width << 16);
2428 avio_wb32(pb, track->enc->height << 16);
2431 ffio_wfourcc(pb, "prof");
2433 avio_wb32(pb, width << 16);
2434 avio_wb32(pb, track->enc->height << 16);
2437 ffio_wfourcc(pb, "enof");
2439 avio_wb32(pb, track->enc->width << 16);
2440 avio_wb32(pb, track->enc->height << 16);
2442 return update_size(pb, pos);
2445 // This box seems important for the psp playback ... without it the movie seems to hang
2446 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2449 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2450 track->timescale, AV_ROUND_UP);
2451 int version = duration < INT32_MAX ? 0 : 1;
2452 int entry_size, entry_count, size;
2453 int64_t delay, start_ct = track->start_cts;
2454 int64_t start_dts = track->start_dts;
2457 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2459 av_log(mov->fc, AV_LOG_DEBUG,
2460 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2461 track->cluster[0].dts, track->cluster[0].cts,
2462 start_dts, start_ct, track->track_id);
2463 start_dts = track->cluster[0].dts;
2464 start_ct = track->cluster[0].cts;
2468 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2469 track->timescale, AV_ROUND_DOWN);
2470 version |= delay < INT32_MAX ? 0 : 1;
2472 entry_size = (version == 1) ? 20 : 12;
2473 entry_count = 1 + (delay > 0);
2474 size = 24 + entry_count * entry_size;
2476 /* write the atom data */
2477 avio_wb32(pb, size);
2478 ffio_wfourcc(pb, "edts");
2479 avio_wb32(pb, size - 8);
2480 ffio_wfourcc(pb, "elst");
2481 avio_w8(pb, version);
2482 avio_wb24(pb, 0); /* flags */
2484 avio_wb32(pb, entry_count);
2485 if (delay > 0) { /* add an empty edit to delay presentation */
2486 /* In the positive delay case, the delay includes the cts
2487 * offset, and the second edit list entry below trims out
2488 * the same amount from the actual content. This makes sure
2489 * that the offsetted last sample is included in the edit
2490 * list duration as well. */
2492 avio_wb64(pb, delay);
2495 avio_wb32(pb, delay);
2498 avio_wb32(pb, 0x00010000);
2500 /* Avoid accidentally ending up with start_ct = -1 which has got a
2501 * special meaning. Normally start_ct should end up positive or zero
2502 * here, but use FFMIN in case dts is a a small positive integer
2503 * rounded to 0 when represented in MOV_TIMESCALE units. */
2504 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2505 start_ct = -FFMIN(start_dts, 0);
2506 /* Note, this delay is calculated from the pts of the first sample,
2507 * ensuring that we don't reduce the duration for cases with
2512 /* For fragmented files, we don't know the full length yet. Setting
2513 * duration to 0 allows us to only specify the offset, including
2514 * the rest of the content (from all future fragments) without specifying
2515 * an explicit duration. */
2516 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2521 avio_wb64(pb, duration);
2522 avio_wb64(pb, start_ct);
2524 avio_wb32(pb, duration);
2525 avio_wb32(pb, start_ct);
2527 avio_wb32(pb, 0x00010000);
2531 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2533 avio_wb32(pb, 20); // size
2534 ffio_wfourcc(pb, "tref");
2535 avio_wb32(pb, 12); // size (subatom)
2536 avio_wl32(pb, track->tref_tag);
2537 avio_wb32(pb, track->tref_id);
2541 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2542 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2544 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2545 ffio_wfourcc(pb, "uuid");
2546 ffio_wfourcc(pb, "USMT");
2547 avio_wb32(pb, 0x21d24fce);
2548 avio_wb32(pb, 0xbb88695c);
2549 avio_wb32(pb, 0xfac9c740);
2550 avio_wb32(pb, 0x1c); // another size here!
2551 ffio_wfourcc(pb, "MTDT");
2552 avio_wb32(pb, 0x00010012);
2553 avio_wb32(pb, 0x0a);
2554 avio_wb32(pb, 0x55c40000);
2560 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2562 AVFormatContext *ctx = track->rtp_ctx;
2563 char buf[1000] = "";
2566 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2567 NULL, NULL, 0, 0, ctx);
2568 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2571 avio_wb32(pb, len + 24);
2572 ffio_wfourcc(pb, "udta");
2573 avio_wb32(pb, len + 16);
2574 ffio_wfourcc(pb, "hnti");
2575 avio_wb32(pb, len + 8);
2576 ffio_wfourcc(pb, "sdp ");
2577 avio_write(pb, buf, len);
2581 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2582 const char *tag, const char *str)
2584 int64_t pos = avio_tell(pb);
2585 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2586 if (!t || !utf8len(t->value))
2589 avio_wb32(pb, 0); /* size */
2590 ffio_wfourcc(pb, tag); /* type */
2591 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2592 return update_size(pb, pos);
2595 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2598 AVIOContext *pb_buf;
2605 ret = avio_open_dyn_buf(&pb_buf);
2609 if (mov->mode & MODE_MP4)
2610 mov_write_track_metadata(pb_buf, st, "name", "title");
2612 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2613 avio_wb32(pb, size + 8);
2614 ffio_wfourcc(pb, "udta");
2615 avio_write(pb, buf, size);
2622 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2623 MOVTrack *track, AVStream *st)
2625 int64_t pos = avio_tell(pb);
2626 int entry_backup = track->entry;
2627 int chunk_backup = track->chunkCount;
2630 /* If we want to have an empty moov, but some samples already have been
2631 * buffered (delay_moov), pretend that no samples have been written yet. */
2632 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2633 track->chunkCount = track->entry = 0;
2635 avio_wb32(pb, 0); /* size */
2636 ffio_wfourcc(pb, "trak");
2637 mov_write_tkhd_tag(pb, mov, track, st);
2639 av_assert2(mov->use_editlist >= 0);
2641 if (track->start_dts != AV_NOPTS_VALUE) {
2642 if (mov->use_editlist)
2643 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2644 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2645 av_log(mov->fc, AV_LOG_WARNING,
2646 "Not writing any edit list even though one would have been required\n");
2649 if (track->tref_tag)
2650 mov_write_tref_tag(pb, track);
2652 if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2654 if (track->mode == MODE_PSP)
2655 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2656 if (track->tag == MKTAG('r','t','p',' '))
2657 mov_write_udta_sdp(pb, track);
2658 if (track->mode == MODE_MOV) {
2659 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2660 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2661 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2662 mov_write_tapt_tag(pb, track);
2665 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2666 mov_write_tapt_tag(pb, track);
2669 mov_write_track_udta_tag(pb, mov, st);
2670 track->entry = entry_backup;
2671 track->chunkCount = chunk_backup;
2672 return update_size(pb, pos);
2675 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2677 int i, has_audio = 0, has_video = 0;
2678 int64_t pos = avio_tell(pb);
2679 int audio_profile = mov->iods_audio_profile;
2680 int video_profile = mov->iods_video_profile;
2681 for (i = 0; i < mov->nb_streams; i++) {
2682 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2683 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2684 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2687 if (audio_profile < 0)
2688 audio_profile = 0xFF - has_audio;
2689 if (video_profile < 0)
2690 video_profile = 0xFF - has_video;
2691 avio_wb32(pb, 0x0); /* size */
2692 ffio_wfourcc(pb, "iods");
2693 avio_wb32(pb, 0); /* version & flags */
2694 put_descr(pb, 0x10, 7);
2695 avio_wb16(pb, 0x004f);
2698 avio_w8(pb, audio_profile);
2699 avio_w8(pb, video_profile);
2701 return update_size(pb, pos);
2704 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2706 avio_wb32(pb, 0x20); /* size */
2707 ffio_wfourcc(pb, "trex");
2708 avio_wb32(pb, 0); /* version & flags */
2709 avio_wb32(pb, track->track_id); /* track ID */
2710 avio_wb32(pb, 1); /* default sample description index */
2711 avio_wb32(pb, 0); /* default sample duration */
2712 avio_wb32(pb, 0); /* default sample size */
2713 avio_wb32(pb, 0); /* default sample flags */
2717 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2719 int64_t pos = avio_tell(pb);
2721 avio_wb32(pb, 0x0); /* size */
2722 ffio_wfourcc(pb, "mvex");
2723 for (i = 0; i < mov->nb_streams; i++)
2724 mov_write_trex_tag(pb, &mov->tracks[i]);
2725 return update_size(pb, pos);
2728 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2730 int max_track_id = 1, i;
2731 int64_t max_track_len = 0;
2734 for (i = 0; i < mov->nb_streams; i++) {
2735 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2736 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2738 mov->tracks[i].timescale,
2740 if (max_track_len < max_track_len_temp)
2741 max_track_len = max_track_len_temp;
2742 if (max_track_id < mov->tracks[i].track_id)
2743 max_track_id = mov->tracks[i].track_id;
2746 /* If using delay_moov, make sure the output is the same as if no
2747 * samples had been written yet. */
2748 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2753 version = max_track_len < UINT32_MAX ? 0 : 1;
2754 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2756 ffio_wfourcc(pb, "mvhd");
2757 avio_w8(pb, version);
2758 avio_wb24(pb, 0); /* flags */
2760 avio_wb64(pb, mov->time);
2761 avio_wb64(pb, mov->time);
2763 avio_wb32(pb, mov->time); /* creation time */
2764 avio_wb32(pb, mov->time); /* modification time */
2766 avio_wb32(pb, MOV_TIMESCALE);
2767 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2769 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2770 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2771 avio_wb16(pb, 0); /* reserved */
2772 avio_wb32(pb, 0); /* reserved */
2773 avio_wb32(pb, 0); /* reserved */
2775 /* Matrix structure */
2776 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2778 avio_wb32(pb, 0); /* reserved (preview time) */
2779 avio_wb32(pb, 0); /* reserved (preview duration) */
2780 avio_wb32(pb, 0); /* reserved (poster time) */
2781 avio_wb32(pb, 0); /* reserved (selection time) */
2782 avio_wb32(pb, 0); /* reserved (selection duration) */
2783 avio_wb32(pb, 0); /* reserved (current time) */
2784 avio_wb32(pb, max_track_id + 1); /* Next track id */
2788 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2791 avio_wb32(pb, 33); /* size */
2792 ffio_wfourcc(pb, "hdlr");
2795 ffio_wfourcc(pb, "mdir");
2796 ffio_wfourcc(pb, "appl");
2803 /* helper function to write a data tag with the specified string as data */
2804 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2807 int size = 16 + strlen(data);
2808 avio_wb32(pb, size); /* size */
2809 ffio_wfourcc(pb, "data");
2812 avio_write(pb, data, strlen(data));
2816 lang = ff_mov_iso639_to_lang("und", 1);
2817 avio_wb16(pb, strlen(data)); /* string length */
2818 avio_wb16(pb, lang);
2819 avio_write(pb, data, strlen(data));
2820 return strlen(data) + 4;
2824 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2825 const char *value, int lang, int long_style)
2828 if (value && value[0]) {
2829 int64_t pos = avio_tell(pb);
2830 avio_wb32(pb, 0); /* size */
2831 ffio_wfourcc(pb, name);
2832 mov_write_string_data_tag(pb, value, lang, long_style);
2833 size = update_size(pb, pos);
2838 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2839 const char *name, const char *tag,
2842 int l, lang = 0, len, len2;
2843 AVDictionaryEntry *t, *t2 = NULL;
2846 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2849 len = strlen(t->key);
2850 snprintf(tag2, sizeof(tag2), "%s-", tag);
2851 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2852 len2 = strlen(t2->key);
2853 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2854 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2859 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2862 /* iTunes bpm number */
2863 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2865 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2866 int size = 0, tmpo = t ? atoi(t->value) : 0;
2869 avio_wb32(pb, size);
2870 ffio_wfourcc(pb, "tmpo");
2871 avio_wb32(pb, size-8); /* size */
2872 ffio_wfourcc(pb, "data");
2873 avio_wb32(pb, 0x15); //type specifier
2875 avio_wb16(pb, tmpo); // data
2880 /* iTunes track or disc number */
2881 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2882 AVFormatContext *s, int disc)
2884 AVDictionaryEntry *t = av_dict_get(s->metadata,
2885 disc ? "disc" : "track",
2887 int size = 0, track = t ? atoi(t->value) : 0;
2890 char *slash = strchr(t->value, '/');
2892 tracks = atoi(slash + 1);
2893 avio_wb32(pb, 32); /* size */
2894 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2895 avio_wb32(pb, 24); /* size */
2896 ffio_wfourcc(pb, "data");
2897 avio_wb32(pb, 0); // 8 bytes empty
2899 avio_wb16(pb, 0); // empty
2900 avio_wb16(pb, track); // track / disc number
2901 avio_wb16(pb, tracks); // total track / disc number
2902 avio_wb16(pb, 0); // empty
2908 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2909 const char *name, const char *tag,
2912 AVDictionaryEntry *t = NULL;
2914 int size = 24 + len;
2916 if (len != 1 && len != 4)
2919 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2921 num = atoi(t->value);
2923 avio_wb32(pb, size);
2924 ffio_wfourcc(pb, name);
2925 avio_wb32(pb, size - 8);
2926 ffio_wfourcc(pb, "data");
2927 avio_wb32(pb, 0x15);
2929 if (len==4) avio_wb32(pb, num);
2930 else avio_w8 (pb, num);
2935 /* iTunes meta data list */
2936 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2939 int64_t pos = avio_tell(pb);
2940 avio_wb32(pb, 0); /* size */
2941 ffio_wfourcc(pb, "ilst");
2942 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2943 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2944 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2945 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2946 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2947 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2948 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2949 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2950 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2952 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2953 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2954 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2955 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2956 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2957 mov_write_string_metadata(s, pb, "desc", "description",1);
2958 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2959 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2960 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2961 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2962 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2963 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2964 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2965 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2966 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2967 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2968 mov_write_trkn_tag(pb, mov, s, 0); // track number
2969 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2970 mov_write_tmpo_tag(pb, s);
2971 return update_size(pb, pos);
2974 /* iTunes meta data tag */
2975 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2979 int64_t pos = avio_tell(pb);
2980 avio_wb32(pb, 0); /* size */
2981 ffio_wfourcc(pb, "meta");
2983 mov_write_itunes_hdlr_tag(pb, mov, s);
2984 mov_write_ilst_tag(pb, mov, s);
2985 size = update_size(pb, pos);
2989 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2990 const char *name, const char *key)
2993 AVDictionaryEntry *t;
2995 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2998 len = strlen(t->value);
3001 avio_wb32(pb, size);
3002 ffio_wfourcc(pb, name);
3003 avio_write(pb, t->value, len);
3009 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3013 GET_UTF8(val, *b++, return -1;)
3016 avio_wb16(pb, 0x00);
3020 static uint16_t language_code(const char *str)
3022 return (((str[0] - 0x60) & 0x1F) << 10) +
3023 (((str[1] - 0x60) & 0x1F) << 5) +
3024 (( str[2] - 0x60) & 0x1F);
3027 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3028 const char *tag, const char *str)
3030 int64_t pos = avio_tell(pb);
3031 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3032 if (!t || !utf8len(t->value))
3034 avio_wb32(pb, 0); /* size */
3035 ffio_wfourcc(pb, tag); /* type */
3036 avio_wb32(pb, 0); /* version + flags */
3037 if (!strcmp(tag, "yrrc"))
3038 avio_wb16(pb, atoi(t->value));
3040 avio_wb16(pb, language_code("eng")); /* language */
3041 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3042 if (!strcmp(tag, "albm") &&
3043 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3044 avio_w8(pb, atoi(t->value));
3046 return update_size(pb, pos);
3049 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3051 int64_t pos = avio_tell(pb);
3052 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3054 avio_wb32(pb, 0); // size
3055 ffio_wfourcc(pb, "chpl");
3056 avio_wb32(pb, 0x01000000); // version + flags
3057 avio_wb32(pb, 0); // unknown
3058 avio_w8(pb, nb_chapters);
3060 for (i = 0; i < nb_chapters; i++) {
3061 AVChapter *c = s->chapters[i];
3062 AVDictionaryEntry *t;
3063 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3065 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3066 int len = FFMIN(strlen(t->value), 255);
3068 avio_write(pb, t->value, len);
3072 return update_size(pb, pos);
3075 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3078 AVIOContext *pb_buf;
3082 ret = avio_open_dyn_buf(&pb_buf);
3086 if (mov->mode & MODE_3GP) {
3087 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3088 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3089 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3090 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3091 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3092 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3093 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3094 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3095 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3096 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3097 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3098 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3099 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3100 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3101 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3102 // currently ignored by mov.c
3103 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3104 // add support for libquicktime, this atom is also actually read by mov.c
3105 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3106 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3107 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3108 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3109 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3110 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3111 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3113 /* iTunes meta data */
3114 mov_write_meta_tag(pb_buf, mov, s);
3117 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3118 mov_write_chpl_tag(pb_buf, s);
3120 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3121 avio_wb32(pb, size + 8);
3122 ffio_wfourcc(pb, "udta");
3123 avio_write(pb, buf, size);
3130 static void mov_write_psp_udta_tag(AVIOContext *pb,
3131 const char *str, const char *lang, int type)
3133 int len = utf8len(str) + 1;
3136 avio_wb16(pb, len * 2 + 10); /* size */
3137 avio_wb32(pb, type); /* type */
3138 avio_wb16(pb, language_code(lang)); /* language */
3139 avio_wb16(pb, 0x01); /* ? */
3140 ascii_to_wc(pb, str);
3143 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3145 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3149 pos = avio_tell(pb);
3150 avio_wb32(pb, 0); /* size placeholder*/
3151 ffio_wfourcc(pb, "uuid");
3152 ffio_wfourcc(pb, "USMT");
3153 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3154 avio_wb32(pb, 0xbb88695c);
3155 avio_wb32(pb, 0xfac9c740);
3157 pos2 = avio_tell(pb);
3158 avio_wb32(pb, 0); /* size placeholder*/
3159 ffio_wfourcc(pb, "MTDT");
3163 avio_wb16(pb, 0x0C); /* size */
3164 avio_wb32(pb, 0x0B); /* type */
3165 avio_wb16(pb, language_code("und")); /* language */
3166 avio_wb16(pb, 0x0); /* ? */
3167 avio_wb16(pb, 0x021C); /* data */
3169 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3170 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3171 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3172 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3174 update_size(pb, pos2);
3175 return update_size(pb, pos);
3181 static void build_chunks(MOVTrack *trk)
3184 MOVIentry *chunk = &trk->cluster[0];
3185 uint64_t chunkSize = chunk->size;
3186 chunk->chunkNum = 1;
3187 if (trk->chunkCount)
3189 trk->chunkCount = 1;
3190 for (i = 1; i<trk->entry; i++){
3191 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3192 chunkSize + trk->cluster[i].size < (1<<20)){
3193 chunkSize += trk->cluster[i].size;
3194 chunk->samples_in_chunk += trk->cluster[i].entries;
3196 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3197 chunk=&trk->cluster[i];
3198 chunkSize = chunk->size;
3204 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3208 int64_t pos = avio_tell(pb);
3209 avio_wb32(pb, 0); /* size placeholder*/
3210 ffio_wfourcc(pb, "moov");
3212 for (i = 0; i < mov->nb_streams; i++) {
3213 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3216 mov->tracks[i].time = mov->time;
3217 mov->tracks[i].track_id = i + 1;
3219 if (mov->tracks[i].entry)
3220 build_chunks(&mov->tracks[i]);
3223 if (mov->chapter_track)
3224 for (i = 0; i < s->nb_streams; i++) {
3225 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3226 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3228 for (i = 0; i < mov->nb_streams; i++) {
3229 MOVTrack *track = &mov->tracks[i];
3230 if (track->tag == MKTAG('r','t','p',' ')) {
3231 track->tref_tag = MKTAG('h','i','n','t');
3232 track->tref_id = mov->tracks[track->src_track].track_id;
3233 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3234 int * fallback, size;
3235 fallback = (int*)av_stream_get_side_data(track->st,
3236 AV_PKT_DATA_FALLBACK_TRACK,
3238 if (fallback != NULL && size == sizeof(int)) {
3239 if (*fallback >= 0 && *fallback < mov->nb_streams) {
3240 track->tref_tag = MKTAG('f','a','l','l');
3241 track->tref_id = mov->tracks[*fallback].track_id;
3246 for (i = 0; i < mov->nb_streams; i++) {
3247 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3248 int src_trk = mov->tracks[i].src_track;
3249 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3250 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3251 //src_trk may have a different timescale than the tmcd track
3252 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3253 mov->tracks[i].timescale,
3254 mov->tracks[src_trk].timescale);
3258 mov_write_mvhd_tag(pb, mov);
3259 if (mov->mode != MODE_MOV && !mov->iods_skip)
3260 mov_write_iods_tag(pb, mov);
3261 for (i = 0; i < mov->nb_streams; i++) {
3262 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3263 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3268 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3269 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3271 if (mov->mode == MODE_PSP)
3272 mov_write_uuidusmt_tag(pb, s);
3274 mov_write_udta_tag(pb, mov, s);
3276 return update_size(pb, pos);
3279 static void param_write_int(AVIOContext *pb, const char *name, int value)
3281 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3284 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3286 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3289 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3292 len = FFMIN(sizeof(buf) / 2 - 1, len);
3293 ff_data_to_hex(buf, value, len, 0);
3294 buf[2 * len] = '\0';
3295 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3298 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3300 int64_t pos = avio_tell(pb);
3302 static const uint8_t uuid[] = {
3303 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3304 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3308 ffio_wfourcc(pb, "uuid");
3309 avio_write(pb, uuid, sizeof(uuid));
3312 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3313 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3314 avio_printf(pb, "<head>\n");
3315 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3316 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3318 avio_printf(pb, "</head>\n");
3319 avio_printf(pb, "<body>\n");
3320 avio_printf(pb, "<switch>\n");
3321 for (i = 0; i < mov->nb_streams; i++) {
3322 MOVTrack *track = &mov->tracks[i];
3324 /* track->track_id is initialized in write_moov, and thus isn't known
3326 int track_id = i + 1;
3328 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3330 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3335 avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3336 (int64_t)track->enc->bit_rate);
3337 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3338 param_write_int(pb, "trackID", track_id);
3339 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3340 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3342 int size = track->enc->extradata_size;
3343 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3345 param_write_hex(pb, "CodecPrivateData",
3346 ptr ? ptr : track->enc->extradata,
3350 param_write_string(pb, "FourCC", "H264");
3351 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3352 param_write_string(pb, "FourCC", "WVC1");
3353 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3354 track->enc->extradata_size);
3356 param_write_int(pb, "MaxWidth", track->enc->width);
3357 param_write_int(pb, "MaxHeight", track->enc->height);
3358 param_write_int(pb, "DisplayWidth", track->enc->width);
3359 param_write_int(pb, "DisplayHeight", track->enc->height);
3361 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3362 switch (track->enc->profile)
3364 case FF_PROFILE_AAC_HE_V2:
3365 param_write_string(pb, "FourCC", "AACP");
3367 case FF_PROFILE_AAC_HE:
3368 param_write_string(pb, "FourCC", "AACH");
3371 param_write_string(pb, "FourCC", "AACL");
3373 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3374 param_write_string(pb, "FourCC", "WMAP");
3376 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3377 track->enc->extradata_size);
3378 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3379 track->enc->codec_id));
3380 param_write_int(pb, "Channels", track->enc->channels);
3381 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3382 param_write_int(pb, "BitsPerSample", 16);
3383 param_write_int(pb, "PacketSize", track->enc->block_align ?
3384 track->enc->block_align : 4);
3386 avio_printf(pb, "</%s>\n", type);
3388 avio_printf(pb, "</switch>\n");
3389 avio_printf(pb, "</body>\n");
3390 avio_printf(pb, "</smil>\n");
3392 return update_size(pb, pos);
3395 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3398 ffio_wfourcc(pb, "mfhd");
3400 avio_wb32(pb, mov->fragments);
3404 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3406 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3407 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3410 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3411 MOVTrack *track, int64_t moof_offset)
3413 int64_t pos = avio_tell(pb);
3414 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3415 MOV_TFHD_BASE_DATA_OFFSET;
3416 if (!track->entry) {
3417 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3419 flags |= MOV_TFHD_DEFAULT_FLAGS;
3421 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3422 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3423 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3424 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3425 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3428 /* Don't set a default sample size, the silverlight player refuses
3429 * to play files with that set. Don't set a default sample duration,
3430 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3431 * file format says it MUST NOT be set. */
3432 if (track->mode == MODE_ISM)
3433 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3434 MOV_TFHD_BASE_DATA_OFFSET);
3436 avio_wb32(pb, 0); /* size placeholder */
3437 ffio_wfourcc(pb, "tfhd");
3438 avio_w8(pb, 0); /* version */
3439 avio_wb24(pb, flags);
3441 avio_wb32(pb, track->track_id); /* track-id */
3442 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3443 avio_wb64(pb, moof_offset);
3444 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3445 track->default_duration = get_cluster_duration(track, 0);
3446 avio_wb32(pb, track->default_duration);
3448 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3449 track->default_size = track->entry ? track->cluster[0].size : 1;
3450 avio_wb32(pb, track->default_size);
3452 track->default_size = -1;
3454 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3455 /* Set the default flags based on the second sample, if available.
3456 * If the first sample is different, that can be signaled via a separate field. */
3457 if (track->entry > 1)
3458 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3460 track->default_sample_flags =
3461 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3462 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3463 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3464 avio_wb32(pb, track->default_sample_flags);
3467 return update_size(pb, pos);
3470 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3471 MOVTrack *track, int moof_size,
3474 int64_t pos = avio_tell(pb);
3475 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3478 for (i = first; i < end; i++) {
3479 if (get_cluster_duration(track, i) != track->default_duration)
3480 flags |= MOV_TRUN_SAMPLE_DURATION;
3481 if (track->cluster[i].size != track->default_size)
3482 flags |= MOV_TRUN_SAMPLE_SIZE;
3483 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3484 flags |= MOV_TRUN_SAMPLE_FLAGS;
3486 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3487 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3488 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3489 if (track->flags & MOV_TRACK_CTTS)
3490 flags |= MOV_TRUN_SAMPLE_CTS;
3492 avio_wb32(pb, 0); /* size placeholder */
3493 ffio_wfourcc(pb, "trun");
3494 avio_w8(pb, 0); /* version */
3495 avio_wb24(pb, flags);
3497 avio_wb32(pb, end - first); /* sample count */
3498 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3499 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3501 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3503 avio_wb32(pb, moof_size + 8 + track->data_offset +
3504 track->cluster[first].pos); /* data offset */
3505 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3506 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3508 for (i = first; i < end; i++) {
3509 if (flags & MOV_TRUN_SAMPLE_DURATION)
3510 avio_wb32(pb, get_cluster_duration(track, i));
3511 if (flags & MOV_TRUN_SAMPLE_SIZE)
3512 avio_wb32(pb, track->cluster[i].size);
3513 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3514 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3515 if (flags & MOV_TRUN_SAMPLE_CTS)
3516 avio_wb32(pb, track->cluster[i].cts);
3519 mov->first_trun = 0;
3520 return update_size(pb, pos);
3523 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3525 int64_t pos = avio_tell(pb);
3526 static const uint8_t uuid[] = {
3527 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3528 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3531 avio_wb32(pb, 0); /* size placeholder */
3532 ffio_wfourcc(pb, "uuid");
3533 avio_write(pb, uuid, sizeof(uuid));
3536 avio_wb64(pb, track->start_dts + track->frag_start +
3537 track->cluster[0].cts);
3538 avio_wb64(pb, track->end_pts -
3539 (track->cluster[0].dts + track->cluster[0].cts));
3541 return update_size(pb, pos);
3544 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3545 MOVTrack *track, int entry)
3547 int n = track->nb_frag_info - 1 - entry, i;
3548 int size = 8 + 16 + 4 + 1 + 16*n;
3549 static const uint8_t uuid[] = {
3550 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3551 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3557 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3558 avio_wb32(pb, size);
3559 ffio_wfourcc(pb, "uuid");
3560 avio_write(pb, uuid, sizeof(uuid));
3564 for (i = 0; i < n; i++) {
3565 int index = entry + 1 + i;
3566 avio_wb64(pb, track->frag_info[index].time);
3567 avio_wb64(pb, track->frag_info[index].duration);
3569 if (n < mov->ism_lookahead) {
3570 int free_size = 16 * (mov->ism_lookahead - n);
3571 avio_wb32(pb, free_size);
3572 ffio_wfourcc(pb, "free");
3573 ffio_fill(pb, 0, free_size - 8);
3579 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3582 int64_t pos = avio_tell(pb);
3584 for (i = 0; i < mov->ism_lookahead; i++) {
3585 /* Update the tfrf tag for the last ism_lookahead fragments,
3586 * nb_frag_info - 1 is the next fragment to be written. */
3587 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3589 avio_seek(pb, pos, SEEK_SET);
3593 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3597 for (i = 0; i < mov->nb_streams; i++) {
3598 MOVTrack *track = &mov->tracks[i];
3599 MOVFragmentInfo *info;
3600 if ((tracks >= 0 && i != tracks) || !track->entry)
3602 track->nb_frag_info++;
3603 if (track->nb_frag_info >= track->frag_info_capacity) {
3604 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3605 if (av_reallocp_array(&track->frag_info,
3607 sizeof(*track->frag_info)))
3608 return AVERROR(ENOMEM);
3609 track->frag_info_capacity = new_capacity;
3611 info = &track->frag_info[track->nb_frag_info - 1];
3612 info->offset = avio_tell(pb);
3614 // Try to recreate the original pts for the first packet
3615 // from the fields we have stored
3616 info->time = track->start_dts + track->frag_start +
3617 track->cluster[0].cts;
3618 info->duration = track->end_pts -
3619 (track->cluster[0].dts + track->cluster[0].cts);
3620 // If the pts is less than zero, we will have trimmed
3621 // away parts of the media track using an edit list,
3622 // and the corresponding start presentation time is zero.
3623 if (info->time < 0) {
3624 info->duration += info->time;
3627 info->tfrf_offset = 0;
3628 mov_write_tfrf_tags(pb, mov, track);
3633 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3635 int64_t pos = avio_tell(pb);
3637 avio_wb32(pb, 0); /* size */
3638 ffio_wfourcc(pb, "tfdt");
3639 avio_w8(pb, 1); /* version */
3641 avio_wb64(pb, track->frag_start);
3642 return update_size(pb, pos);
3645 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3646 MOVTrack *track, int64_t moof_offset,
3649 int64_t pos = avio_tell(pb);
3651 avio_wb32(pb, 0); /* size placeholder */
3652 ffio_wfourcc(pb, "traf");
3654 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3655 if (mov->mode != MODE_ISM)
3656 mov_write_tfdt_tag(pb, track);
3657 for (i = 1; i < track->entry; i++) {
3658 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3659 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3663 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3664 if (mov->mode == MODE_ISM) {
3665 mov_write_tfxd_tag(pb, track);
3667 if (mov->ism_lookahead) {
3668 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3670 if (track->nb_frag_info > 0) {
3671 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3672 if (!info->tfrf_offset)
3673 info->tfrf_offset = avio_tell(pb);
3675 avio_wb32(pb, 8 + size);
3676 ffio_wfourcc(pb, "free");
3677 for (i = 0; i < size; i++)
3682 return update_size(pb, pos);
3685 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3686 int tracks, int moof_size)
3688 int64_t pos = avio_tell(pb);
3691 avio_wb32(pb, 0); /* size placeholder */
3692 ffio_wfourcc(pb, "moof");
3693 mov->first_trun = 1;
3695 mov_write_mfhd_tag(pb, mov);
3696 for (i = 0; i < mov->nb_streams; i++) {
3697 MOVTrack *track = &mov->tracks[i];
3698 if (tracks >= 0 && i != tracks)
3702 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3705 return update_size(pb, pos);
3708 static int mov_write_sidx_tag(AVIOContext *pb,
3709 MOVTrack *track, int ref_size, int total_sidx_size)
3711 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3712 int64_t presentation_time, duration, offset;
3713 int starts_with_SAP, i, entries;
3717 presentation_time = track->start_dts + track->frag_start +
3718 track->cluster[0].cts;
3719 duration = track->end_pts -
3720 (track->cluster[0].dts + track->cluster[0].cts);
3721 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3723 // pts<0 should be cut away using edts
3724 if (presentation_time < 0) {
3725 duration += presentation_time;
3726 presentation_time = 0;
3729 entries = track->nb_frag_info;
3732 presentation_time = track->frag_info[0].time;
3735 avio_wb32(pb, 0); /* size */
3736 ffio_wfourcc(pb, "sidx");
3737 avio_w8(pb, 1); /* version */
3739 avio_wb32(pb, track->track_id); /* reference_ID */
3740 avio_wb32(pb, track->timescale); /* timescale */
3741 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3742 offset_pos = avio_tell(pb);
3743 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3744 avio_wb16(pb, 0); /* reserved */
3746 avio_wb16(pb, entries); /* reference_count */
3747 for (i = 0; i < entries; i++) {
3748 if (!track->entry) {
3749 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3750 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3752 duration = track->frag_info[i].duration;
3753 ref_size = track->frag_info[i].size;
3754 starts_with_SAP = 1;
3756 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3757 avio_wb32(pb, duration); /* subsegment_duration */
3758 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3761 end_pos = avio_tell(pb);
3762 offset = pos + total_sidx_size - end_pos;
3763 avio_seek(pb, offset_pos, SEEK_SET);
3764 avio_wb64(pb, offset);
3765 avio_seek(pb, end_pos, SEEK_SET);
3766 return update_size(pb, pos);
3769 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3770 int tracks, int ref_size)
3773 AVIOContext *avio_buf;
3775 for (round = 0; round < 2; round++) {
3776 // First run one round to calculate the total size of all
3778 // This would be much simpler if we'd only write one sidx
3779 // atom, for the first track in the moof.
3781 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3786 for (i = 0; i < mov->nb_streams; i++) {
3787 MOVTrack *track = &mov->tracks[i];
3788 if (tracks >= 0 && i != tracks)
3790 // When writing a sidx for the full file, entry is 0, but
3791 // we want to include all tracks. ref_size is 0 in this case,
3792 // since we read it from frag_info instead.
3793 if (!track->entry && ref_size > 0)
3795 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3799 total_size = ffio_close_null_buf(avio_buf);
3804 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3807 AVIOContext *avio_buf;
3810 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3812 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3813 moof_size = ffio_close_null_buf(avio_buf);
3815 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3816 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3818 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3821 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3824 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3826 int64_t pos = avio_tell(pb);
3829 avio_wb32(pb, 0); /* size placeholder */
3830 ffio_wfourcc(pb, "tfra");
3831 avio_w8(pb, 1); /* version */
3834 avio_wb32(pb, track->track_id);
3835 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3836 avio_wb32(pb, track->nb_frag_info);
3837 for (i = 0; i < track->nb_frag_info; i++) {
3838 avio_wb64(pb, track->frag_info[i].time);
3839 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3840 avio_w8(pb, 1); /* traf number */
3841 avio_w8(pb, 1); /* trun number */
3842 avio_w8(pb, 1); /* sample number */
3845 return update_size(pb, pos);
3848 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3850 int64_t pos = avio_tell(pb);
3853 avio_wb32(pb, 0); /* size placeholder */
3854 ffio_wfourcc(pb, "mfra");
3855 /* An empty mfra atom is enough to indicate to the publishing point that
3856 * the stream has ended. */
3857 if (mov->flags & FF_MOV_FLAG_ISML)
3858 return update_size(pb, pos);
3860 for (i = 0; i < mov->nb_streams; i++) {
3861 MOVTrack *track = &mov->tracks[i];
3862 if (track->nb_frag_info)
3863 mov_write_tfra_tag(pb, track);
3867 ffio_wfourcc(pb, "mfro");
3868 avio_wb32(pb, 0); /* version + flags */
3869 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3871 return update_size(pb, pos);
3874 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3876 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3877 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3879 mov->mdat_pos = avio_tell(pb);
3880 avio_wb32(pb, 0); /* size placeholder*/
3881 ffio_wfourcc(pb, "mdat");
3885 /* TODO: This needs to be more general */
3886 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3888 MOVMuxContext *mov = s->priv_data;
3889 int64_t pos = avio_tell(pb);
3890 int has_h264 = 0, has_video = 0;
3894 for (i = 0; i < s->nb_streams; i++) {
3895 AVStream *st = s->streams[i];
3896 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3898 if (st->codec->codec_id == AV_CODEC_ID_H264)
3902 avio_wb32(pb, 0); /* size */
3903 ffio_wfourcc(pb, "ftyp");
3905 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3906 ffio_wfourcc(pb, mov->major_brand);
3907 else if (mov->mode == MODE_3GP) {
3908 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3909 minor = has_h264 ? 0x100 : 0x200;
3910 } else if (mov->mode & MODE_3G2) {
3911 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3912 minor = has_h264 ? 0x20000 : 0x10000;
3913 } else if (mov->mode == MODE_PSP)
3914 ffio_wfourcc(pb, "MSNV");
3915 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3916 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3917 else if (mov->mode == MODE_MP4)
3918 ffio_wfourcc(pb, "isom");
3919 else if (mov->mode == MODE_IPOD)
3920 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3921 else if (mov->mode == MODE_ISM)
3922 ffio_wfourcc(pb, "isml");
3923 else if (mov->mode == MODE_F4V)
3924 ffio_wfourcc(pb, "f4v ");
3926 ffio_wfourcc(pb, "qt ");
3928 avio_wb32(pb, minor);
3930 if (mov->mode == MODE_MOV)
3931 ffio_wfourcc(pb, "qt ");
3932 else if (mov->mode == MODE_ISM) {
3933 ffio_wfourcc(pb, "piff");
3934 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3935 ffio_wfourcc(pb, "isom");
3936 ffio_wfourcc(pb, "iso2");
3938 ffio_wfourcc(pb, "avc1");
3941 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3942 // brand. This is compatible with users that don't understand tfdt.
3943 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3944 ffio_wfourcc(pb, "iso6");
3946 if (mov->mode == MODE_3GP)
3947 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3948 else if (mov->mode & MODE_3G2)
3949 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3950 else if (mov->mode == MODE_PSP)
3951 ffio_wfourcc(pb, "MSNV");
3952 else if (mov->mode == MODE_MP4)
3953 ffio_wfourcc(pb, "mp41");
3955 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3956 ffio_wfourcc(pb, "dash");
3958 return update_size(pb, pos);
3961 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3963 AVStream *video_st = s->streams[0];
3964 AVCodecContext *video_codec = s->streams[0]->codec;
3965 AVCodecContext *audio_codec = s->streams[1]->codec;
3966 int audio_rate = audio_codec->sample_rate;
3967 // TODO: should be avg_frame_rate
3968 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3969 int audio_kbitrate = audio_codec->bit_rate / 1000;
3970 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3972 avio_wb32(pb, 0x94); /* size */
3973 ffio_wfourcc(pb, "uuid");
3974 ffio_wfourcc(pb, "PROF");
3976 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3977 avio_wb32(pb, 0xbb88695c);
3978 avio_wb32(pb, 0xfac9c740);
3980 avio_wb32(pb, 0x0); /* ? */
3981 avio_wb32(pb, 0x3); /* 3 sections ? */
3983 avio_wb32(pb, 0x14); /* size */
3984 ffio_wfourcc(pb, "FPRF");
3985 avio_wb32(pb, 0x0); /* ? */
3986 avio_wb32(pb, 0x0); /* ? */
3987 avio_wb32(pb, 0x0); /* ? */
3989 avio_wb32(pb, 0x2c); /* size */
3990 ffio_wfourcc(pb, "APRF"); /* audio */
3992 avio_wb32(pb, 0x2); /* TrackID */
3993 ffio_wfourcc(pb, "mp4a");
3994 avio_wb32(pb, 0x20f);
3996 avio_wb32(pb, audio_kbitrate);
3997 avio_wb32(pb, audio_kbitrate);
3998 avio_wb32(pb, audio_rate);
3999 avio_wb32(pb, audio_codec->channels);
4001 avio_wb32(pb, 0x34); /* size */
4002 ffio_wfourcc(pb, "VPRF"); /* video */
4004 avio_wb32(pb, 0x1); /* TrackID */
4005 if (video_codec->codec_id == AV_CODEC_ID_H264) {
4006 ffio_wfourcc(pb, "avc1");
4007 avio_wb16(pb, 0x014D);
4008 avio_wb16(pb, 0x0015);
4010 ffio_wfourcc(pb, "mp4v");
4011 avio_wb16(pb, 0x0000);
4012 avio_wb16(pb, 0x0103);
4015 avio_wb32(pb, video_kbitrate);
4016 avio_wb32(pb, video_kbitrate);
4017 avio_wb32(pb, frame_rate);
4018 avio_wb32(pb, frame_rate);
4019 avio_wb16(pb, video_codec->width);
4020 avio_wb16(pb, video_codec->height);
4021 avio_wb32(pb, 0x010001); /* ? */
4024 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
4026 MOVMuxContext *mov = s->priv_data;
4029 mov_write_ftyp_tag(pb,s);
4030 if (mov->mode == MODE_PSP) {
4031 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4032 for (i = 0; i < s->nb_streams; i++) {
4033 AVStream *st = s->streams[i];
4034 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4036 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4042 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4043 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4044 return AVERROR(EINVAL);
4046 mov_write_uuidprof_tag(pb, s);
4051 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4054 int i, closed_gop = 0;
4056 for (i = 0; i < pkt->size - 4; i++) {
4057 c = (c << 8) + pkt->data[i];
4058 if (c == 0x1b8) { // gop
4059 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4060 } else if (c == 0x100) { // pic
4061 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4062 if (!temp_ref || closed_gop) // I picture is not reordered
4063 *flags = MOV_SYNC_SAMPLE;
4065 *flags = MOV_PARTIAL_SYNC_SAMPLE;
4072 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4074 const uint8_t *start, *next, *end = pkt->data + pkt->size;
4075 int seq = 0, entry = 0;
4076 int key = pkt->flags & AV_PKT_FLAG_KEY;
4077 start = find_next_marker(pkt->data, end);
4078 for (next = start; next < end; start = next) {
4079 next = find_next_marker(start + 4, end);
4080 switch (AV_RB32(start)) {
4081 case VC1_CODE_SEQHDR:
4084 case VC1_CODE_ENTRYPOINT:
4087 case VC1_CODE_SLICE:
4088 trk->vc1_info.slices = 1;
4092 if (!trk->entry && trk->vc1_info.first_packet_seen)
4093 trk->vc1_info.first_frag_written = 1;
4094 if (!trk->entry && !trk->vc1_info.first_frag_written) {
4095 /* First packet in first fragment */
4096 trk->vc1_info.first_packet_seq = seq;
4097 trk->vc1_info.first_packet_entry = entry;
4098 trk->vc1_info.first_packet_seen = 1;
4099 } else if ((seq && !trk->vc1_info.packet_seq) ||
4100 (entry && !trk->vc1_info.packet_entry)) {
4102 for (i = 0; i < trk->entry; i++)
4103 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4104 trk->has_keyframes = 0;
4106 trk->vc1_info.packet_seq = 1;
4108 trk->vc1_info.packet_entry = 1;
4109 if (!trk->vc1_info.first_frag_written) {
4110 /* First fragment */
4111 if ((!seq || trk->vc1_info.first_packet_seq) &&
4112 (!entry || trk->vc1_info.first_packet_entry)) {
4113 /* First packet had the same headers as this one, readd the
4114 * sync sample flag. */
4115 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4116 trk->has_keyframes = 1;
4120 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4122 else if (trk->vc1_info.packet_seq)
4124 else if (trk->vc1_info.packet_entry)
4127 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4128 trk->has_keyframes++;
4132 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4134 MOVMuxContext *mov = s->priv_data;
4139 if (!track->mdat_buf)
4141 if (!mov->mdat_buf) {
4142 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4145 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4146 track->mdat_buf = NULL;
4148 offset = avio_tell(mov->mdat_buf);
4149 avio_write(mov->mdat_buf, buf, buf_size);
4152 for (i = track->entries_flushed; i < track->entry; i++)
4153 track->cluster[i].pos += offset;
4154 track->entries_flushed = track->entry;
4158 static int mov_flush_fragment(AVFormatContext *s, int force)
4160 MOVMuxContext *mov = s->priv_data;
4161 int i, first_track = -1;
4162 int64_t mdat_size = 0;
4165 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4168 for (i = 0; i < mov->nb_streams; i++) {
4169 MOVTrack *track = &mov->tracks[i];
4170 if (track->entry <= 1)
4172 // Sample durations are calculated as the diff of dts values,
4173 // but for the last sample in a fragment, we don't know the dts
4174 // of the first sample in the next fragment, so we have to rely
4175 // on what was set as duration in the AVPacket. Not all callers
4176 // set this though, so we might want to replace it with an
4177 // estimate if it currently is zero.
4178 if (get_cluster_duration(track, track->entry - 1) != 0)
4180 // Use the duration (i.e. dts diff) of the second last sample for
4181 // the last one. This is a wild guess (and fatal if it turns out
4182 // to be too long), but probably the best we can do - having a zero
4183 // duration is bad as well.
4184 track->track_duration += get_cluster_duration(track, track->entry - 2);
4185 track->end_pts += get_cluster_duration(track, track->entry - 2);
4186 if (!mov->missing_duration_warned) {
4187 av_log(s, AV_LOG_WARNING,
4188 "Estimating the duration of the last packet in a "
4189 "fragment, consider setting the duration field in "
4190 "AVPacket instead.\n");
4191 mov->missing_duration_warned = 1;
4195 if (!mov->moov_written) {
4196 int64_t pos = avio_tell(s->pb);
4198 int buf_size, moov_size;
4200 for (i = 0; i < mov->nb_streams; i++)
4201 if (!mov->tracks[i].entry)
4203 /* Don't write the initial moov unless all tracks have data */
4204 if (i < mov->nb_streams && !force)
4207 moov_size = get_moov_size(s);
4208 for (i = 0; i < mov->nb_streams; i++)
4209 mov->tracks[i].data_offset = pos + moov_size + 8;
4211 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4212 mov_write_identification(s->pb, s);
4213 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4216 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4217 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4218 mov->reserved_header_pos = avio_tell(s->pb);
4220 mov->moov_written = 1;
4224 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4225 mov->mdat_buf = NULL;
4226 avio_wb32(s->pb, buf_size + 8);
4227 ffio_wfourcc(s->pb, "mdat");
4228 avio_write(s->pb, buf, buf_size);
4231 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4232 mov->reserved_header_pos = avio_tell(s->pb);
4234 mov->moov_written = 1;
4236 for (i = 0; i < mov->nb_streams; i++) {
4237 if (mov->tracks[i].entry)
4238 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4239 mov->tracks[i].track_duration -
4240 mov->tracks[i].cluster[0].dts;
4241 mov->tracks[i].entry = 0;
4247 if (mov->frag_interleave) {
4248 for (i = 0; i < mov->nb_streams; i++) {
4249 MOVTrack *track = &mov->tracks[i];
4251 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4257 mdat_size = avio_tell(mov->mdat_buf);
4260 for (i = 0; i < mov->nb_streams; i++) {
4261 MOVTrack *track = &mov->tracks[i];
4262 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4263 track->data_offset = 0;
4265 track->data_offset = mdat_size;
4268 if (track->mdat_buf)
4269 mdat_size += avio_tell(track->mdat_buf);
4270 if (first_track < 0)
4277 for (i = 0; i < mov->nb_streams; i++) {
4278 MOVTrack *track = &mov->tracks[i];
4279 int buf_size, write_moof = 1, moof_tracks = -1;
4281 int64_t duration = 0;
4284 duration = track->start_dts + track->track_duration -
4285 track->cluster[0].dts;
4286 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4287 if (!track->mdat_buf)
4289 mdat_size = avio_tell(track->mdat_buf);
4292 write_moof = i == first_track;
4298 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4301 avio_wb32(s->pb, mdat_size + 8);
4302 ffio_wfourcc(s->pb, "mdat");
4306 track->frag_start += duration;
4308 track->entries_flushed = 0;
4309 if (!mov->frag_interleave) {
4310 if (!track->mdat_buf)
4312 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4313 track->mdat_buf = NULL;
4317 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4318 mov->mdat_buf = NULL;
4321 avio_write(s->pb, buf, buf_size);
4331 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
4333 MOVMuxContext *mov = s->priv_data;
4334 int had_moov = mov->moov_written;
4335 int ret = mov_flush_fragment(s, force);
4338 // If using delay_moov, the first flush only wrote the moov,
4339 // not the actual moof+mdat pair, thus flush once again.
4340 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4341 ret = mov_flush_fragment(s, force);
4345 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4347 MOVMuxContext *mov = s->priv_data;
4348 AVIOContext *pb = s->pb;
4349 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4350 AVCodecContext *enc = trk->enc;
4351 unsigned int samples_in_chunk = 0;
4352 int size = pkt->size, ret = 0;
4353 uint8_t *reformatted_data = NULL;
4356 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4357 if (duration < 0 || duration > INT_MAX) {
4358 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4362 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4363 pkt->pts = AV_NOPTS_VALUE;
4366 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
4367 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
4368 return AVERROR(EINVAL);
4370 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4372 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4373 if (mov->frag_interleave && mov->fragments > 0) {
4374 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4375 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4380 if (!trk->mdat_buf) {
4381 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4386 if (!mov->mdat_buf) {
4387 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4394 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4395 /* We must find out how many AMR blocks there are in one packet */
4396 static const uint16_t packed_size[16] =
4397 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4400 while (len < size && samples_in_chunk < 100) {
4401 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4404 if (samples_in_chunk > 1) {
4405 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4408 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4409 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4410 samples_in_chunk = enc->frame_size;
4411 } else if (trk->sample_size)
4412 samples_in_chunk = size / trk->sample_size;
4414 samples_in_chunk = 1;
4416 /* copy extradata if it exists */
4417 if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4418 !TAG_IS_AVCI(trk->tag) &&
4419 (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4420 trk->vos_len = enc->extradata_size;
4421 trk->vos_data = av_malloc(trk->vos_len);
4422 if (!trk->vos_data) {
4423 ret = AVERROR(ENOMEM);
4426 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4429 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4430 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4431 if (!s->streams[pkt->stream_index]->nb_frames) {
4432 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4433 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4434 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4437 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4439 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4440 /* from x264 or from bytestream h264 */
4441 /* nal reformating needed */
4442 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4443 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4445 avio_write(pb, reformatted_data, size);
4447 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4448 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
4454 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4457 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4458 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4459 /* extradata is Annex B, assume the bitstream is too and convert it */
4460 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4461 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4462 avio_write(pb, reformatted_data, size);
4464 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4466 #if CONFIG_AC3_PARSER
4467 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4468 size = handle_eac3(mov, pkt, trk);
4473 avio_write(pb, pkt->data, size);
4476 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
4477 if (enc->codec_id == AV_CODEC_ID_H264 && enc->extradata_size > 4) {
4478 int nal_size_length = (enc->extradata[4] & 0x3) + 1;
4479 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
4481 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
4488 avio_write(pb, pkt->data, size);
4492 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4493 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4494 /* copy frame to create needed atoms */
4495 trk->vos_len = size;
4496 trk->vos_data = av_malloc(size);
4497 if (!trk->vos_data) {
4498 ret = AVERROR(ENOMEM);
4501 memcpy(trk->vos_data, pkt->data, size);
4504 if (trk->entry >= trk->cluster_capacity) {
4505 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4506 if (av_reallocp_array(&trk->cluster, new_capacity,
4507 sizeof(*trk->cluster))) {
4508 ret = AVERROR(ENOMEM);
4511 trk->cluster_capacity = new_capacity;
4514 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4515 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4516 trk->cluster[trk->entry].chunkNum = 0;
4517 trk->cluster[trk->entry].size = size;
4518 trk->cluster[trk->entry].entries = samples_in_chunk;
4519 trk->cluster[trk->entry].dts = pkt->dts;
4520 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4521 if (!trk->frag_discont) {
4522 /* First packet of a new fragment. We already wrote the duration
4523 * of the last packet of the previous fragment based on track_duration,
4524 * which might not exactly match our dts. Therefore adjust the dts
4525 * of this packet to be what the previous packets duration implies. */
4526 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4527 /* We also may have written the pts and the corresponding duration
4528 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
4529 * the next fragment. This means the cts of the first sample must
4530 * be the same in all fragments. */
4531 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
4532 mov->mode == MODE_ISM)
4533 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
4535 /* New fragment, but discontinuous from previous fragments.
4536 * Pretend the duration sum of the earlier fragments is
4537 * pkt->dts - trk->start_dts. */
4538 trk->frag_start = pkt->dts - trk->start_dts;
4539 trk->end_pts = AV_NOPTS_VALUE;
4540 trk->frag_discont = 0;
4544 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4545 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4546 /* Not using edit lists and shifting the first track to start from zero.
4547 * If the other streams start from a later timestamp, we won't be able
4548 * to signal the difference in starting time without an edit list.
4549 * Thus move the timestamp for this first sample to 0, increasing
4550 * its duration instead. */
4551 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4553 if (trk->start_dts == AV_NOPTS_VALUE) {
4554 trk->start_dts = pkt->dts;
4555 if (trk->frag_discont) {
4556 if (mov->use_editlist) {
4557 /* Pretend the whole stream started at pts=0, with earlier fragments
4558 * already written. If the stream started at pts=0, the duration sum
4559 * of earlier fragments would have been pkt->pts. */
4560 trk->frag_start = pkt->pts;
4561 trk->start_dts = pkt->dts - pkt->pts;
4563 /* Pretend the whole stream started at dts=0, with earlier fragments
4564 * already written, with a duration summing up to pkt->dts. */
4565 trk->frag_start = pkt->dts;
4568 trk->frag_discont = 0;
4569 } else if (pkt->dts && mov->moov_written)
4570 av_log(s, AV_LOG_WARNING,
4571 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4572 "already has been written. Set the delay_moov flag to handle "
4574 pkt->stream_index, pkt->dts);
4576 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4577 trk->last_sample_is_subtitle_end = 0;
4579 if (pkt->pts == AV_NOPTS_VALUE) {
4580 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4581 pkt->pts = pkt->dts;
4583 if (pkt->dts != pkt->pts)
4584 trk->flags |= MOV_TRACK_CTTS;
4585 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4586 trk->cluster[trk->entry].flags = 0;
4587 if (trk->start_cts == AV_NOPTS_VALUE)
4588 trk->start_cts = pkt->pts - pkt->dts;
4589 if (trk->end_pts == AV_NOPTS_VALUE)
4590 trk->end_pts = trk->cluster[trk->entry].dts +
4591 trk->cluster[trk->entry].cts + pkt->duration;
4593 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
4594 trk->cluster[trk->entry].cts +
4597 if (enc->codec_id == AV_CODEC_ID_VC1) {
4598 mov_parse_vc1_frame(pkt, trk);
4599 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4600 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4601 trk->entry > 0) { // force sync sample for the first key frame
4602 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4603 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4604 trk->flags |= MOV_TRACK_STPS;
4606 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4608 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4609 trk->has_keyframes++;
4612 trk->sample_count += samples_in_chunk;
4613 mov->mdat_size += size;
4615 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4616 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4617 reformatted_data, size);
4622 av_free(reformatted_data);
4626 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4628 MOVMuxContext *mov = s->priv_data;
4629 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4630 AVCodecContext *enc = trk->enc;
4631 int64_t frag_duration = 0;
4632 int size = pkt->size;
4634 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4636 for (i = 0; i < s->nb_streams; i++)
4637 mov->tracks[i].frag_discont = 1;
4638 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4642 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
4643 trk->start_dts = pkt->dts;
4644 if (pkt->pts != AV_NOPTS_VALUE)
4645 trk->start_cts = pkt->pts - pkt->dts;
4650 return 0; /* Discard 0 sized packets */
4653 if (trk->entry && pkt->stream_index < s->nb_streams)
4654 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4655 s->streams[pkt->stream_index]->time_base,
4657 if ((mov->max_fragment_duration &&
4658 frag_duration >= mov->max_fragment_duration) ||
4659 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4660 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4661 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4662 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4663 if (frag_duration >= mov->min_fragment_duration) {
4664 // Set the duration of this track to line up with the next
4665 // sample in this track. This avoids relying on AVPacket
4666 // duration, but only helps for this particular track, not
4667 // for the other ones that are flushed at the same time.
4668 trk->track_duration = pkt->dts - trk->start_dts;
4669 trk->end_pts = pkt->pts;
4670 mov_auto_flush_fragment(s, 0);
4674 return ff_mov_write_packet(s, pkt);
4677 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4681 uint8_t data[2] = {0};
4684 av_init_packet(&end);
4685 end.size = sizeof(data);
4690 end.stream_index = stream_index;
4692 ret = mov_write_single_packet(s, &end);
4693 av_packet_unref(&end);
4698 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4701 mov_flush_fragment(s, 1);
4705 MOVMuxContext *mov = s->priv_data;
4708 return mov_write_single_packet(s, pkt); /* Passthrough. */
4711 * Subtitles require special handling.
4713 * 1) For full complaince, every track must have a sample at
4714 * dts == 0, which is rarely true for subtitles. So, as soon
4715 * as we see any packet with dts > 0, write an empty subtitle
4716 * at dts == 0 for any subtitle track with no samples in it.
4718 * 2) For each subtitle track, check if the current packet's
4719 * dts is past the duration of the last subtitle sample. If
4720 * so, we now need to write an end sample for that subtitle.
4722 * This must be done conditionally to allow for subtitles that
4723 * immediately replace each other, in which case an end sample
4724 * is not needed, and is, in fact, actively harmful.
4726 * 3) See mov_write_trailer for how the final end sample is
4729 for (i = 0; i < mov->nb_streams; i++) {
4730 MOVTrack *trk = &mov->tracks[i];
4733 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4734 trk->track_duration < pkt->dts &&
4735 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4736 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4737 if (ret < 0) return ret;
4738 trk->last_sample_is_subtitle_end = 1;
4742 return mov_write_single_packet(s, pkt);
4746 // QuickTime chapters involve an additional text track with the chapter names
4747 // as samples, and a tref pointing from the other tracks to the chapter one.
4748 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4752 MOVMuxContext *mov = s->priv_data;
4753 MOVTrack *track = &mov->tracks[tracknum];
4754 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4757 track->mode = mov->mode;
4758 track->tag = MKTAG('t','e','x','t');
4759 track->timescale = MOV_TIMESCALE;
4760 track->enc = avcodec_alloc_context3(NULL);
4762 return AVERROR(ENOMEM);
4763 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4765 // These properties are required to make QT recognize the chapter track
4766 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4767 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4768 return AVERROR(ENOMEM);
4769 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4771 if (avio_open_dyn_buf(&pb) >= 0) {
4775 /* Stub header (usually for Quicktime chapter track) */
4777 avio_wb32(pb, 0x01); // displayFlags
4778 avio_w8(pb, 0x00); // horizontal justification
4779 avio_w8(pb, 0x00); // vertical justification
4780 avio_w8(pb, 0x00); // bgColourRed
4781 avio_w8(pb, 0x00); // bgColourGreen
4782 avio_w8(pb, 0x00); // bgColourBlue
4783 avio_w8(pb, 0x00); // bgColourAlpha
4785 avio_wb16(pb, 0x00); // defTextBoxTop
4786 avio_wb16(pb, 0x00); // defTextBoxLeft
4787 avio_wb16(pb, 0x00); // defTextBoxBottom
4788 avio_wb16(pb, 0x00); // defTextBoxRight
4790 avio_wb16(pb, 0x00); // startChar
4791 avio_wb16(pb, 0x00); // endChar
4792 avio_wb16(pb, 0x01); // fontID
4793 avio_w8(pb, 0x00); // fontStyleFlags
4794 avio_w8(pb, 0x00); // fontSize
4795 avio_w8(pb, 0x00); // fgColourRed
4796 avio_w8(pb, 0x00); // fgColourGreen
4797 avio_w8(pb, 0x00); // fgColourBlue
4798 avio_w8(pb, 0x00); // fgColourAlpha
4800 avio_wb32(pb, 0x0D); // box size
4801 ffio_wfourcc(pb, "ftab"); // box atom name
4802 avio_wb16(pb, 0x01); // entry count
4804 avio_wb16(pb, 0x01); // font ID
4805 avio_w8(pb, 0x00); // font name length
4807 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4808 track->enc->extradata = buf;
4809 track->enc->extradata_size = size;
4816 for (i = 0; i < s->nb_chapters; i++) {
4817 AVChapter *c = s->chapters[i];
4818 AVDictionaryEntry *t;
4820 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4821 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4822 pkt.duration = end - pkt.dts;
4824 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4825 const char encd[12] = {
4826 0x00, 0x00, 0x00, 0x0C,
4828 0x00, 0x00, 0x01, 0x00 };
4829 len = strlen(t->value);
4830 pkt.size = len + 2 + 12;
4831 pkt.data = av_malloc(pkt.size);
4833 return AVERROR(ENOMEM);
4834 AV_WB16(pkt.data, len);
4835 memcpy(pkt.data + 2, t->value, len);
4836 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4837 ff_mov_write_packet(s, &pkt);
4838 av_freep(&pkt.data);
4845 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4848 MOVMuxContext *mov = s->priv_data;
4849 MOVTrack *track = &mov->tracks[index];
4850 AVStream *src_st = s->streams[src_index];
4852 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4853 AVRational rate = find_fps(s, src_st);
4855 /* compute the frame number */
4856 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4860 /* tmcd track based on video stream */
4861 track->mode = mov->mode;
4862 track->tag = MKTAG('t','m','c','d');
4863 track->src_track = src_index;
4864 track->timescale = mov->tracks[src_index].timescale;
4865 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4866 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4868 /* set st to src_st for metadata access*/
4871 /* encode context: tmcd data stream */
4872 track->enc = avcodec_alloc_context3(NULL);
4874 return AVERROR(ENOMEM);
4875 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4876 track->enc->codec_tag = track->tag;
4877 track->enc->time_base = av_inv_q(rate);
4879 /* the tmcd track just contains one packet with the frame number */
4880 pkt.data = av_malloc(pkt.size);
4882 return AVERROR(ENOMEM);
4883 AV_WB32(pkt.data, tc.start);
4884 ret = ff_mov_write_packet(s, &pkt);
4890 * st->disposition controls the "enabled" flag in the tkhd tag.
4891 * QuickTime will not play a track if it is not enabled. So make sure
4892 * that one track of each type (audio, video, subtitle) is enabled.
4894 * Subtitles are special. For audio and video, setting "enabled" also
4895 * makes the track "default" (i.e. it is rendered when played). For
4896 * subtitles, an "enabled" subtitle is not rendered by default, but
4897 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4900 static void enable_tracks(AVFormatContext *s)
4902 MOVMuxContext *mov = s->priv_data;
4904 int enabled[AVMEDIA_TYPE_NB];
4905 int first[AVMEDIA_TYPE_NB];
4907 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4912 for (i = 0; i < s->nb_streams; i++) {
4913 AVStream *st = s->streams[i];
4915 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4916 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4919 if (first[st->codec->codec_type] < 0)
4920 first[st->codec->codec_type] = i;
4921 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4922 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4923 enabled[st->codec->codec_type]++;
4927 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4929 case AVMEDIA_TYPE_VIDEO:
4930 case AVMEDIA_TYPE_AUDIO:
4931 case AVMEDIA_TYPE_SUBTITLE:
4933 mov->per_stream_grouping = 1;
4934 if (!enabled[i] && first[i] >= 0)
4935 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4941 static void mov_free(AVFormatContext *s)
4943 MOVMuxContext *mov = s->priv_data;
4946 if (mov->chapter_track) {
4947 if (mov->tracks[mov->chapter_track].enc)
4948 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4949 av_freep(&mov->tracks[mov->chapter_track].enc);
4952 for (i = 0; i < mov->nb_streams; i++) {
4953 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4954 ff_mov_close_hinting(&mov->tracks[i]);
4955 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4956 av_freep(&mov->tracks[i].enc);
4957 av_freep(&mov->tracks[i].cluster);
4958 av_freep(&mov->tracks[i].frag_info);
4960 if (mov->tracks[i].vos_len)
4961 av_freep(&mov->tracks[i].vos_data);
4963 ff_mov_cenc_free(&mov->tracks[i].cenc);
4966 av_freep(&mov->tracks);
4969 static uint32_t rgb_to_yuv(uint32_t rgb)
4974 r = (rgb >> 16) & 0xFF;
4975 g = (rgb >> 8) & 0xFF;
4978 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
4979 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
4980 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
4982 return (y << 16) | (cr << 8) | cb;
4985 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4988 int i, width = 720, height = 480;
4989 int have_palette = 0, have_size = 0;
4990 uint32_t palette[16];
4991 char *cur = st->codec->extradata;
4993 while (cur && *cur) {
4994 if (strncmp("palette:", cur, 8) == 0) {
4996 count = sscanf(cur + 8,
4997 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4998 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4999 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
5000 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
5001 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
5002 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
5003 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
5004 &palette[12], &palette[13], &palette[14], &palette[15]);
5006 for (i = 0; i < count; i++) {
5007 palette[i] = rgb_to_yuv(palette[i]);
5010 } else if (!strncmp("size:", cur, 5)) {
5011 sscanf(cur + 5, "%dx%d", &width, &height);
5014 if (have_palette && have_size)
5016 cur += strcspn(cur, "\n\r");
5017 cur += strspn(cur, "\n\r");
5020 track->vos_data = av_malloc(16*4);
5021 if (!track->vos_data)
5022 return AVERROR(ENOMEM);
5023 for (i = 0; i < 16; i++) {
5024 AV_WB32(track->vos_data + i * 4, palette[i]);
5026 track->vos_len = 16 * 4;
5028 st->codec->width = width;
5029 st->codec->height = track->height = height;
5034 static int mov_write_header(AVFormatContext *s)
5036 AVIOContext *pb = s->pb;
5037 MOVMuxContext *mov = s->priv_data;
5038 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
5039 int i, ret, hint_track = 0, tmcd_track = 0;
5043 /* Default mode == MP4 */
5044 mov->mode = MODE_MP4;
5047 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
5048 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
5049 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
5050 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
5051 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
5052 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
5053 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
5056 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5057 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
5059 /* Set the FRAGMENT flag if any of the fragmentation methods are
5061 if (mov->max_fragment_duration || mov->max_fragment_size ||
5062 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
5063 FF_MOV_FLAG_FRAG_KEYFRAME |
5064 FF_MOV_FLAG_FRAG_CUSTOM))
5065 mov->flags |= FF_MOV_FLAG_FRAGMENT;
5067 /* Set other implicit flags immediately */
5068 if (mov->mode == MODE_ISM)
5069 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
5070 FF_MOV_FLAG_FRAGMENT;
5071 if (mov->flags & FF_MOV_FLAG_DASH)
5072 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
5073 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
5075 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5076 mov->reserved_moov_size = -1;
5079 if (mov->use_editlist < 0) {
5080 mov->use_editlist = 1;
5081 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5082 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5083 // If we can avoid needing an edit list by shifting the
5084 // tracks, prefer that over (trying to) write edit lists
5085 // in fragmented output.
5086 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5087 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5088 mov->use_editlist = 0;
5091 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5092 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5093 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5095 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5096 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5098 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5099 * if the latter is set that's enough and omit_tfhd_offset doesn't
5100 * add anything extra on top of that. */
5101 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5102 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5103 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5105 if (mov->frag_interleave &&
5106 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5107 av_log(s, AV_LOG_ERROR,
5108 "Sample interleaving in fragments is mutually exclusive with "
5109 "omit_tfhd_offset and separate_moof\n");
5110 return AVERROR(EINVAL);
5113 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5114 * is enabled, we don't support non-seekable output at all. */
5115 if (!s->pb->seekable &&
5116 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5117 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5118 return AVERROR(EINVAL);
5121 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5122 if ((ret = mov_write_identification(pb, s)) < 0)
5126 mov->nb_streams = s->nb_streams;
5127 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5128 mov->chapter_track = mov->nb_streams++;
5130 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5131 /* Add hint tracks for each audio and video stream */
5132 hint_track = mov->nb_streams;
5133 for (i = 0; i < s->nb_streams; i++) {
5134 AVStream *st = s->streams[i];
5135 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5136 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5142 if (mov->mode == MODE_MOV) {
5143 tmcd_track = mov->nb_streams;
5145 /* +1 tmcd track for each video stream with a timecode */
5146 for (i = 0; i < s->nb_streams; i++) {
5147 AVStream *st = s->streams[i];
5148 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
5149 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
5150 mov->nb_meta_tmcd++;
5153 /* check if there is already a tmcd track to remux */
5154 if (mov->nb_meta_tmcd) {
5155 for (i = 0; i < s->nb_streams; i++) {
5156 AVStream *st = s->streams[i];
5157 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
5158 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5159 "so timecode metadata are now ignored\n");
5160 mov->nb_meta_tmcd = 0;
5165 mov->nb_streams += mov->nb_meta_tmcd;
5168 // Reserve an extra stream for chapters for the case where chapters
5169 // are written in the trailer
5170 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5172 return AVERROR(ENOMEM);
5174 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
5175 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
5176 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
5178 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
5179 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
5180 mov->encryption_key_len, AES_CTR_KEY_SIZE);
5181 ret = AVERROR(EINVAL);
5185 if (mov->encryption_kid_len != CENC_KID_SIZE) {
5186 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
5187 mov->encryption_kid_len, CENC_KID_SIZE);
5188 ret = AVERROR(EINVAL);
5192 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
5193 mov->encryption_scheme_str);
5194 ret = AVERROR(EINVAL);
5199 for (i = 0; i < s->nb_streams; i++) {
5200 AVStream *st= s->streams[i];
5201 MOVTrack *track= &mov->tracks[i];
5202 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5205 track->enc = st->codec;
5206 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5207 if (track->language < 0)
5208 track->language = 0;
5209 track->mode = mov->mode;
5210 track->tag = mov_find_codec_tag(s, track);
5212 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5213 "codec not currently supported in container\n",
5214 avcodec_get_name(st->codec->codec_id), i);
5215 ret = AVERROR(EINVAL);
5218 /* If hinting of this track is enabled by a later hint track,
5219 * this is updated. */
5220 track->hint_track = -1;
5221 track->start_dts = AV_NOPTS_VALUE;
5222 track->start_cts = AV_NOPTS_VALUE;
5223 track->end_pts = AV_NOPTS_VALUE;
5224 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5225 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5226 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5227 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5228 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
5229 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5230 ret = AVERROR(EINVAL);
5233 track->height = track->tag >> 24 == 'n' ? 486 : 576;
5235 if (mov->video_track_timescale) {
5236 track->timescale = mov->video_track_timescale;
5238 track->timescale = st->time_base.den;
5239 while(track->timescale < 10000)
5240 track->timescale *= 2;
5242 if (st->codec->width > 65535 || st->codec->height > 65535) {
5243 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
5244 ret = AVERROR(EINVAL);
5247 if (track->mode == MODE_MOV && track->timescale > 100000)
5248 av_log(s, AV_LOG_WARNING,
5249 "WARNING codec timebase is very high. If duration is too long,\n"
5250 "file may not be playable by quicktime. Specify a shorter timebase\n"
5251 "or choose different container.\n");
5252 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5253 track->timescale = st->codec->sample_rate;
5254 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
5255 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
5256 track->audio_vbr = 1;
5257 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
5258 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
5259 st->codec->codec_id == AV_CODEC_ID_ILBC){
5260 if (!st->codec->block_align) {
5261 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
5262 ret = AVERROR(EINVAL);
5265 track->sample_size = st->codec->block_align;
5266 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
5267 track->audio_vbr = 1;
5269 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
5271 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
5272 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
5273 track->audio_vbr = 1;
5275 if (track->mode != MODE_MOV &&
5276 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5277 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
5278 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
5279 i, track->enc->sample_rate);
5280 ret = AVERROR(EINVAL);
5283 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
5284 i, track->enc->sample_rate);
5287 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5288 track->timescale = st->time_base.den;
5289 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
5290 track->timescale = st->time_base.den;
5292 track->timescale = MOV_TIMESCALE;
5295 track->height = st->codec->height;
5296 /* The ism specific timescale isn't mandatory, but is assumed by
5297 * some tools, such as mp4split. */
5298 if (mov->mode == MODE_ISM)
5299 track->timescale = 10000000;
5301 avpriv_set_pts_info(st, 64, 1, track->timescale);
5303 /* copy extradata if it exists */
5304 if (st->codec->extradata_size) {
5305 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
5306 mov_create_dvd_sub_decoder_specific_info(track, st);
5307 else if (!TAG_IS_AVCI(track->tag) && st->codec->codec_id != AV_CODEC_ID_DNXHD) {
5308 track->vos_len = st->codec->extradata_size;
5309 track->vos_data = av_malloc(track->vos_len);
5310 if (!track->vos_data) {
5311 ret = AVERROR(ENOMEM);
5314 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
5318 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
5319 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
5320 track->enc->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
5327 for (i = 0; i < s->nb_streams; i++) {
5329 AVStream *st= s->streams[i];
5330 MOVTrack *track= &mov->tracks[i];
5332 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5333 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
5336 for (j = 0; j < s->nb_streams; j++) {
5337 AVStream *stj= s->streams[j];
5338 MOVTrack *trackj= &mov->tracks[j];
5342 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5343 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
5344 trackj->language != track->language ||
5345 trackj->tag != track->tag
5348 track->multichannel_as_mono++;
5355 if (mov->reserved_moov_size){
5356 mov->reserved_header_pos = avio_tell(pb);
5357 if (mov->reserved_moov_size > 0)
5358 avio_skip(pb, mov->reserved_moov_size);
5361 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5362 /* If no fragmentation options have been set, set a default. */
5363 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5364 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5365 !mov->max_fragment_duration && !mov->max_fragment_size)
5366 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5368 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5369 mov->reserved_header_pos = avio_tell(pb);
5370 mov_write_mdat_tag(pb, mov);
5373 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0)) {
5374 mov->time = ff_iso8601_to_unix_time(t->value);
5375 if (mov->time < 0) {
5376 av_log(s, AV_LOG_WARNING, "Failed to parse creation_time %s\n", t->value);
5381 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5383 if (mov->chapter_track)
5384 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5387 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5388 /* Initialize the hint tracks for each audio and video stream */
5389 for (i = 0; i < s->nb_streams; i++) {
5390 AVStream *st = s->streams[i];
5391 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5392 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5393 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5400 if (mov->nb_meta_tmcd) {
5401 /* Initialize the tmcd tracks */
5402 for (i = 0; i < s->nb_streams; i++) {
5403 AVStream *st = s->streams[i];
5406 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5408 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5411 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5420 if (mov->flags & FF_MOV_FLAG_ISML)
5421 mov_write_isml_manifest(pb, mov);
5423 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5424 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5425 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5428 mov->moov_written = 1;
5429 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5430 mov->reserved_header_pos = avio_tell(pb);
5439 static int get_moov_size(AVFormatContext *s)
5442 AVIOContext *moov_buf;
5443 MOVMuxContext *mov = s->priv_data;
5445 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5447 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5449 return ffio_close_null_buf(moov_buf);
5452 static int get_sidx_size(AVFormatContext *s)
5456 MOVMuxContext *mov = s->priv_data;
5458 if ((ret = ffio_open_null_buf(&buf)) < 0)
5460 mov_write_sidx_tags(buf, mov, -1, 0);
5461 return ffio_close_null_buf(buf);
5465 * This function gets the moov size if moved to the top of the file: the chunk
5466 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5467 * entries) when the moov is moved to the beginning, so the size of the moov
5468 * would change. It also updates the chunk offset tables.
5470 static int compute_moov_size(AVFormatContext *s)
5472 int i, moov_size, moov_size2;
5473 MOVMuxContext *mov = s->priv_data;
5475 moov_size = get_moov_size(s);
5479 for (i = 0; i < mov->nb_streams; i++)
5480 mov->tracks[i].data_offset += moov_size;
5482 moov_size2 = get_moov_size(s);
5486 /* if the size changed, we just switched from stco to co64 and need to
5487 * update the offsets */
5488 if (moov_size2 != moov_size)
5489 for (i = 0; i < mov->nb_streams; i++)
5490 mov->tracks[i].data_offset += moov_size2 - moov_size;
5495 static int compute_sidx_size(AVFormatContext *s)
5498 MOVMuxContext *mov = s->priv_data;
5500 sidx_size = get_sidx_size(s);
5504 for (i = 0; i < mov->nb_streams; i++)
5505 mov->tracks[i].data_offset += sidx_size;
5510 static int shift_data(AVFormatContext *s)
5512 int ret = 0, moov_size;
5513 MOVMuxContext *mov = s->priv_data;
5514 int64_t pos, pos_end = avio_tell(s->pb);
5515 uint8_t *buf, *read_buf[2];
5516 int read_buf_id = 0;
5518 AVIOContext *read_pb;
5520 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5521 moov_size = compute_sidx_size(s);
5523 moov_size = compute_moov_size(s);
5527 buf = av_malloc(moov_size * 2);
5529 return AVERROR(ENOMEM);
5531 read_buf[1] = buf + moov_size;
5533 /* Shift the data: the AVIO context of the output can only be used for
5534 * writing, so we re-open the same output, but for reading. It also avoids
5535 * a read/seek/write/seek back and forth. */
5537 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5539 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5540 "the second pass (faststart)\n", s->filename);
5544 /* mark the end of the shift to up to the last data we wrote, and get ready
5546 pos_end = avio_tell(s->pb);
5547 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
5549 /* start reading at where the new moov will be placed */
5550 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
5551 pos = avio_tell(read_pb);
5553 #define READ_BLOCK do { \
5554 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5558 /* shift data by chunk of at most moov_size */
5563 n = read_size[read_buf_id];
5566 avio_write(s->pb, read_buf[read_buf_id], n);
5568 } while (pos < pos_end);
5569 avio_close(read_pb);
5576 static int mov_write_trailer(AVFormatContext *s)
5578 MOVMuxContext *mov = s->priv_data;
5579 AVIOContext *pb = s->pb;
5585 * Before actually writing the trailer, make sure that there are no
5586 * dangling subtitles, that need a terminating sample.
5588 for (i = 0; i < mov->nb_streams; i++) {
5589 MOVTrack *trk = &mov->tracks[i];
5590 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5591 !trk->last_sample_is_subtitle_end) {
5592 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5593 trk->last_sample_is_subtitle_end = 1;
5597 // If there were no chapters when the header was written, but there
5598 // are chapters now, write them in the trailer. This only works
5599 // when we are not doing fragments.
5600 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5601 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5602 mov->chapter_track = mov->nb_streams++;
5603 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5608 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5609 moov_pos = avio_tell(pb);
5611 /* Write size of mdat tag */
5612 if (mov->mdat_size + 8 <= UINT32_MAX) {
5613 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5614 avio_wb32(pb, mov->mdat_size + 8);
5616 /* overwrite 'wide' placeholder atom */
5617 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5618 /* special value: real atom size will be 64 bit value after
5621 ffio_wfourcc(pb, "mdat");
5622 avio_wb64(pb, mov->mdat_size + 16);
5624 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
5626 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5627 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5628 res = shift_data(s);
5630 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5631 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5634 } else if (mov->reserved_moov_size > 0) {
5636 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5638 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
5640 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5641 res = AVERROR(EINVAL);
5644 avio_wb32(pb, size);
5645 ffio_wfourcc(pb, "free");
5646 ffio_fill(pb, 0, size - 8);
5647 avio_seek(pb, moov_pos, SEEK_SET);
5649 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5654 mov_auto_flush_fragment(s, 1);
5655 for (i = 0; i < mov->nb_streams; i++)
5656 mov->tracks[i].data_offset = 0;
5657 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
5658 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5659 res = shift_data(s);
5661 int64_t end = avio_tell(pb);
5662 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5663 mov_write_sidx_tags(pb, mov, -1, 0);
5664 avio_seek(pb, end, SEEK_SET);
5665 mov_write_mfra_tag(pb, mov);
5668 mov_write_mfra_tag(pb, mov);
5678 #if CONFIG_MOV_MUXER
5680 AVOutputFormat ff_mov_muxer = {
5682 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5683 .extensions = "mov",
5684 .priv_data_size = sizeof(MOVMuxContext),
5685 .audio_codec = AV_CODEC_ID_AAC,
5686 .video_codec = CONFIG_LIBX264_ENCODER ?
5687 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5688 .write_header = mov_write_header,
5689 .write_packet = mov_write_packet,
5690 .write_trailer = mov_write_trailer,
5691 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5692 .codec_tag = (const AVCodecTag* const []){
5693 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5695 .priv_class = &mov_muxer_class,
5698 #if CONFIG_TGP_MUXER
5700 AVOutputFormat ff_tgp_muxer = {
5702 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5703 .extensions = "3gp",
5704 .priv_data_size = sizeof(MOVMuxContext),
5705 .audio_codec = AV_CODEC_ID_AMR_NB,
5706 .video_codec = AV_CODEC_ID_H263,
5707 .write_header = mov_write_header,
5708 .write_packet = mov_write_packet,
5709 .write_trailer = mov_write_trailer,
5710 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5711 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5712 .priv_class = &tgp_muxer_class,
5715 #if CONFIG_MP4_MUXER
5717 AVOutputFormat ff_mp4_muxer = {
5719 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5720 .mime_type = "video/mp4",
5721 .extensions = "mp4",
5722 .priv_data_size = sizeof(MOVMuxContext),
5723 .audio_codec = AV_CODEC_ID_AAC,
5724 .video_codec = CONFIG_LIBX264_ENCODER ?
5725 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5726 .write_header = mov_write_header,
5727 .write_packet = mov_write_packet,
5728 .write_trailer = mov_write_trailer,
5729 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5730 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5731 .priv_class = &mp4_muxer_class,
5734 #if CONFIG_PSP_MUXER
5736 AVOutputFormat ff_psp_muxer = {
5738 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5739 .extensions = "mp4,psp",
5740 .priv_data_size = sizeof(MOVMuxContext),
5741 .audio_codec = AV_CODEC_ID_AAC,
5742 .video_codec = CONFIG_LIBX264_ENCODER ?
5743 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5744 .write_header = mov_write_header,
5745 .write_packet = mov_write_packet,
5746 .write_trailer = mov_write_trailer,
5747 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5748 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5749 .priv_class = &psp_muxer_class,
5752 #if CONFIG_TG2_MUXER
5754 AVOutputFormat ff_tg2_muxer = {
5756 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5757 .extensions = "3g2",
5758 .priv_data_size = sizeof(MOVMuxContext),
5759 .audio_codec = AV_CODEC_ID_AMR_NB,
5760 .video_codec = AV_CODEC_ID_H263,
5761 .write_header = mov_write_header,
5762 .write_packet = mov_write_packet,
5763 .write_trailer = mov_write_trailer,
5764 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5765 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5766 .priv_class = &tg2_muxer_class,
5769 #if CONFIG_IPOD_MUXER
5771 AVOutputFormat ff_ipod_muxer = {
5773 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5774 .mime_type = "video/mp4",
5775 .extensions = "m4v,m4a",
5776 .priv_data_size = sizeof(MOVMuxContext),
5777 .audio_codec = AV_CODEC_ID_AAC,
5778 .video_codec = AV_CODEC_ID_H264,
5779 .write_header = mov_write_header,
5780 .write_packet = mov_write_packet,
5781 .write_trailer = mov_write_trailer,
5782 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5783 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5784 .priv_class = &ipod_muxer_class,
5787 #if CONFIG_ISMV_MUXER
5789 AVOutputFormat ff_ismv_muxer = {
5791 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5792 .mime_type = "video/mp4",
5793 .extensions = "ismv,isma",
5794 .priv_data_size = sizeof(MOVMuxContext),
5795 .audio_codec = AV_CODEC_ID_AAC,
5796 .video_codec = AV_CODEC_ID_H264,
5797 .write_header = mov_write_header,
5798 .write_packet = mov_write_packet,
5799 .write_trailer = mov_write_trailer,
5800 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5801 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5802 .priv_class = &ismv_muxer_class,
5805 #if CONFIG_F4V_MUXER
5807 AVOutputFormat ff_f4v_muxer = {
5809 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5810 .mime_type = "application/f4v",
5811 .extensions = "f4v",
5812 .priv_data_size = sizeof(MOVMuxContext),
5813 .audio_codec = AV_CODEC_ID_AAC,
5814 .video_codec = AV_CODEC_ID_H264,
5815 .write_header = mov_write_header,
5816 .write_packet = mov_write_packet,
5817 .write_trailer = mov_write_trailer,
5818 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5819 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5820 .priv_class = &f4v_muxer_class,