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_INT, {.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_INT, {.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 },
89 #define MOV_CLASS(flavor)\
90 static const AVClass flavor ## _muxer_class = {\
91 .class_name = #flavor " muxer",\
92 .item_name = av_default_item_name,\
94 .version = LIBAVUTIL_VERSION_INT,\
97 static int get_moov_size(AVFormatContext *s);
99 static int utf8len(const uint8_t *b)
104 GET_UTF8(val, *b++, return -1;)
110 //FIXME support 64 bit variant with wide placeholders
111 static int64_t update_size(AVIOContext *pb, int64_t pos)
113 int64_t curpos = avio_tell(pb);
114 avio_seek(pb, pos, SEEK_SET);
115 avio_wb32(pb, curpos - pos); /* rewrite size */
116 avio_seek(pb, curpos, SEEK_SET);
121 static int co64_required(const MOVTrack *track)
123 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
128 /* Chunk offset atom */
129 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
132 int mode64 = co64_required(track); // use 32 bit size variant if possible
133 int64_t pos = avio_tell(pb);
134 avio_wb32(pb, 0); /* size */
136 ffio_wfourcc(pb, "co64");
138 ffio_wfourcc(pb, "stco");
139 avio_wb32(pb, 0); /* version & flags */
140 avio_wb32(pb, track->chunkCount); /* entry count */
141 for (i = 0; i < track->entry; i++) {
142 if (!track->cluster[i].chunkNum)
145 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
147 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
149 return update_size(pb, pos);
152 /* Sample size atom */
153 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
156 int i, j, entries = 0, tst = -1, oldtst = -1;
158 int64_t pos = avio_tell(pb);
159 avio_wb32(pb, 0); /* size */
160 ffio_wfourcc(pb, "stsz");
161 avio_wb32(pb, 0); /* version & flags */
163 for (i = 0; i < track->entry; i++) {
164 tst = track->cluster[i].size / track->cluster[i].entries;
165 if (oldtst != -1 && tst != oldtst)
168 entries += track->cluster[i].entries;
170 if (equalChunks && track->entry) {
171 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
172 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
173 avio_wb32(pb, sSize); // sample size
174 avio_wb32(pb, entries); // sample count
176 avio_wb32(pb, 0); // sample size
177 avio_wb32(pb, entries); // sample count
178 for (i = 0; i < track->entry; i++) {
179 for (j = 0; j < track->cluster[i].entries; j++) {
180 avio_wb32(pb, track->cluster[i].size /
181 track->cluster[i].entries);
185 return update_size(pb, pos);
188 /* Sample to chunk atom */
189 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
191 int index = 0, oldval = -1, i;
192 int64_t entryPos, curpos;
194 int64_t pos = avio_tell(pb);
195 avio_wb32(pb, 0); /* size */
196 ffio_wfourcc(pb, "stsc");
197 avio_wb32(pb, 0); // version & flags
198 entryPos = avio_tell(pb);
199 avio_wb32(pb, track->chunkCount); // entry count
200 for (i = 0; i < track->entry; i++) {
201 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
202 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
203 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
204 avio_wb32(pb, 0x1); // sample description index
205 oldval = track->cluster[i].samples_in_chunk;
209 curpos = avio_tell(pb);
210 avio_seek(pb, entryPos, SEEK_SET);
211 avio_wb32(pb, index); // rewrite size
212 avio_seek(pb, curpos, SEEK_SET);
214 return update_size(pb, pos);
217 /* Sync sample atom */
218 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
220 int64_t curpos, entryPos;
222 int64_t pos = avio_tell(pb);
223 avio_wb32(pb, 0); // size
224 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
225 avio_wb32(pb, 0); // version & flags
226 entryPos = avio_tell(pb);
227 avio_wb32(pb, track->entry); // entry count
228 for (i = 0; i < track->entry; i++) {
229 if (track->cluster[i].flags & flag) {
230 avio_wb32(pb, i + 1);
234 curpos = avio_tell(pb);
235 avio_seek(pb, entryPos, SEEK_SET);
236 avio_wb32(pb, index); // rewrite size
237 avio_seek(pb, curpos, SEEK_SET);
238 return update_size(pb, pos);
241 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
243 avio_wb32(pb, 0x11); /* size */
244 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
245 else ffio_wfourcc(pb, "damr");
246 ffio_wfourcc(pb, "FFMP");
247 avio_w8(pb, 0); /* decoder version */
249 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
250 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
251 avio_w8(pb, 0x01); /* Frames per sample */
255 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
260 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
262 if (track->vos_len < 7)
266 ffio_wfourcc(pb, "dac3");
268 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
269 fscod = get_bits(&gbc, 2);
270 frmsizecod = get_bits(&gbc, 6);
271 bsid = get_bits(&gbc, 5);
272 bsmod = get_bits(&gbc, 3);
273 acmod = get_bits(&gbc, 3);
275 skip_bits(&gbc, 2); // dsurmod
277 if ((acmod & 1) && acmod != 1)
278 skip_bits(&gbc, 2); // cmixlev
280 skip_bits(&gbc, 2); // surmixlev
282 lfeon = get_bits1(&gbc);
284 init_put_bits(&pbc, buf, sizeof(buf));
285 put_bits(&pbc, 2, fscod);
286 put_bits(&pbc, 5, bsid);
287 put_bits(&pbc, 3, bsmod);
288 put_bits(&pbc, 3, acmod);
289 put_bits(&pbc, 1, lfeon);
290 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
291 put_bits(&pbc, 5, 0); // reserved
293 flush_put_bits(&pbc);
294 avio_write(pb, buf, sizeof(buf));
304 /* Layout of the EC3SpecificBox */
305 /* maximum bitrate */
307 /* number of independent substreams */
310 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
312 /* bit stream identification 5 bits */
314 /* one bit reserved */
315 /* audio service mixing (not supported yet) 1 bit */
316 /* bit stream mode 3 bits */
318 /* audio coding mode 3 bits */
320 /* sub woofer on 1 bit */
322 /* 3 bits reserved */
323 /* number of dependent substreams associated with this substream 4 bits */
325 /* channel locations of the dependent substream(s), if any, 9 bits */
327 /* if there is no dependent substream, then one bit reserved instead */
328 } substream[1]; /* TODO: support 8 independent substreams */
331 #if CONFIG_AC3_PARSER
332 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
335 AC3HeaderInfo tmp, *hdr = &tmp;
336 struct eac3_info *info;
339 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
340 return AVERROR(ENOMEM);
341 info = track->eac3_priv;
343 init_get_bits(&gbc, pkt->data, pkt->size * 8);
344 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
345 /* drop the packets until we see a good one */
347 av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
350 return AVERROR_INVALIDDATA;
353 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
354 num_blocks = hdr->num_blocks;
356 if (!info->ec3_done) {
357 /* AC-3 substream must be the first one */
358 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
359 return AVERROR(EINVAL);
361 /* this should always be the case, given that our AC-3 parser
362 * concatenates dependent frames to their independent parent */
363 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
364 /* substream ids must be incremental */
365 if (hdr->substreamid > info->num_ind_sub + 1)
366 return AVERROR(EINVAL);
368 if (hdr->substreamid == info->num_ind_sub + 1) {
369 //info->num_ind_sub++;
370 avpriv_request_sample(track->enc, "Multiple independent substreams");
371 return AVERROR_PATCHWELCOME;
372 } else if (hdr->substreamid < info->num_ind_sub ||
373 hdr->substreamid == 0 && info->substream[0].bsid) {
379 /* fill the info needed for the "dec3" atom */
380 info->substream[hdr->substreamid].fscod = hdr->sr_code;
381 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
382 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
383 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
384 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
386 /* Parse dependent substream(s), if any */
387 if (pkt->size != hdr->frame_size) {
388 int cumul_size = hdr->frame_size;
389 int parent = hdr->substreamid;
391 while (cumul_size != pkt->size) {
393 init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
394 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
395 return AVERROR_INVALIDDATA;
396 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
397 return AVERROR(EINVAL);
398 cumul_size += hdr->frame_size;
399 info->substream[parent].num_dep_sub++;
401 /* header is parsed up to lfeon, but custom channel map may be needed */
404 /* skip volume control params */
405 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
406 skip_bits(&gbc, 5); // skip dialog normalization
407 if (get_bits1(&gbc)) {
408 skip_bits(&gbc, 8); // skip compression gain word
411 /* get the dependent stream channel map, if exists */
413 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
415 info->substream[parent].chan_loc |= hdr->channel_mode;
421 if (!info->num_blocks && num_blocks == 6)
423 else if (info->num_blocks + num_blocks > 6)
424 return AVERROR_INVALIDDATA;
426 if (!info->num_blocks) {
428 if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
430 info->num_blocks = num_blocks;
434 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
436 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
437 info->num_blocks += num_blocks;
438 info->pkt.duration += pkt->duration;
439 if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
441 if (info->num_blocks != 6)
444 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
446 av_free_packet(&info->pkt);
447 info->num_blocks = 0;
454 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
458 struct eac3_info *info;
461 if (!track->eac3_priv)
462 return AVERROR(EINVAL);
464 info = track->eac3_priv;
465 size = 2 + 4 * (info->num_ind_sub + 1);
466 buf = av_malloc(size);
468 size = AVERROR(ENOMEM);
472 init_put_bits(&pbc, buf, size);
473 put_bits(&pbc, 13, info->data_rate);
474 put_bits(&pbc, 3, info->num_ind_sub);
475 for (i = 0; i <= info->num_ind_sub; i++) {
476 put_bits(&pbc, 2, info->substream[i].fscod);
477 put_bits(&pbc, 5, info->substream[i].bsid);
478 put_bits(&pbc, 1, 0); /* reserved */
479 put_bits(&pbc, 1, 0); /* asvc */
480 put_bits(&pbc, 3, info->substream[i].bsmod);
481 put_bits(&pbc, 3, info->substream[i].acmod);
482 put_bits(&pbc, 1, info->substream[i].lfeon);
483 put_bits(&pbc, 5, 0); /* reserved */
484 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
485 if (!info->substream[i].num_dep_sub) {
486 put_bits(&pbc, 1, 0); /* reserved */
489 put_bits(&pbc, 9, info->substream[i].chan_loc);
492 flush_put_bits(&pbc);
494 avio_wb32(pb, size + 8);
495 ffio_wfourcc(pb, "dec3");
496 avio_write(pb, buf, size);
501 av_free_packet(&info->pkt);
502 av_freep(&track->eac3_priv);
508 * This function writes extradata "as is".
509 * Extradata must be formatted like a valid atom (with size and tag).
511 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
513 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
514 return track->enc->extradata_size;
517 static int mov_write_enda_tag(AVIOContext *pb)
520 ffio_wfourcc(pb, "enda");
521 avio_wb16(pb, 1); /* little endian */
525 static int mov_write_enda_tag_be(AVIOContext *pb)
528 ffio_wfourcc(pb, "enda");
529 avio_wb16(pb, 0); /* big endian */
533 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
538 avio_w8(pb, (size >> (7 * i)) | 0x80);
539 avio_w8(pb, size & 0x7F);
542 static unsigned compute_avg_bitrate(MOVTrack *track)
546 if (!track->track_duration)
548 for (i = 0; i < track->entry; i++)
549 size += track->cluster[i].size;
550 return size * 8 * track->timescale / track->track_duration;
553 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
555 int64_t pos = avio_tell(pb);
556 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
557 unsigned avg_bitrate;
559 avio_wb32(pb, 0); // size
560 ffio_wfourcc(pb, "esds");
561 avio_wb32(pb, 0); // Version
564 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
565 avio_wb16(pb, track->track_id);
566 avio_w8(pb, 0x00); // flags (= no flags)
568 // DecoderConfig descriptor
569 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
571 // Object type indication
572 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
573 track->enc->codec_id == AV_CODEC_ID_MP3) &&
574 track->enc->sample_rate > 24000)
575 avio_w8(pb, 0x6B); // 11172-3
577 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
579 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
580 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
581 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
582 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
583 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
584 avio_w8(pb, 0x15); // flags (= Audiostream)
586 avio_w8(pb, 0x11); // flags (= Visualstream)
588 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
590 avg_bitrate = compute_avg_bitrate(track);
591 // maxbitrate (FIXME should be max rate in any 1 sec window)
592 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
593 avio_wb32(pb, avg_bitrate);
595 if (track->vos_len) {
596 // DecoderSpecific info descriptor
597 put_descr(pb, 0x05, track->vos_len);
598 avio_write(pb, track->vos_data, track->vos_len);
602 put_descr(pb, 0x06, 1);
604 return update_size(pb, pos);
607 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
609 return codec_id == AV_CODEC_ID_PCM_S24LE ||
610 codec_id == AV_CODEC_ID_PCM_S32LE ||
611 codec_id == AV_CODEC_ID_PCM_F32LE ||
612 codec_id == AV_CODEC_ID_PCM_F64LE;
615 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
617 return codec_id == AV_CODEC_ID_PCM_S24BE ||
618 codec_id == AV_CODEC_ID_PCM_S32BE ||
619 codec_id == AV_CODEC_ID_PCM_F32BE ||
620 codec_id == AV_CODEC_ID_PCM_F64BE;
623 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
626 int64_t pos = avio_tell(pb);
628 avio_wl32(pb, track->tag); // store it byteswapped
629 track->enc->codec_tag = av_bswap16(track->tag >> 16);
630 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
632 return update_size(pb, pos);
635 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
638 int64_t pos = avio_tell(pb);
640 ffio_wfourcc(pb, "wfex");
641 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
643 return update_size(pb, pos);
646 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
648 uint32_t layout_tag, bitmap;
649 int64_t pos = avio_tell(pb);
651 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
652 track->enc->channel_layout,
655 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
656 "lack of channel information\n");
660 if (track->multichannel_as_mono)
663 avio_wb32(pb, 0); // Size
664 ffio_wfourcc(pb, "chan"); // Type
665 avio_w8(pb, 0); // Version
666 avio_wb24(pb, 0); // Flags
667 avio_wb32(pb, layout_tag); // mChannelLayoutTag
668 avio_wb32(pb, bitmap); // mChannelBitmap
669 avio_wb32(pb, 0); // mNumberChannelDescriptions
671 return update_size(pb, pos);
674 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
676 int64_t pos = avio_tell(pb);
678 avio_wb32(pb, 0); /* size */
679 ffio_wfourcc(pb, "wave");
681 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
682 avio_wb32(pb, 12); /* size */
683 ffio_wfourcc(pb, "frma");
684 avio_wl32(pb, track->tag);
687 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
688 /* useless atom needed by mplayer, ipod, not needed by quicktime */
689 avio_wb32(pb, 12); /* size */
690 ffio_wfourcc(pb, "mp4a");
692 mov_write_esds_tag(pb, track);
693 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
694 mov_write_enda_tag(pb);
695 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
696 mov_write_enda_tag_be(pb);
697 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
698 mov_write_amr_tag(pb, track);
699 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
700 mov_write_ac3_tag(pb, track);
701 } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
702 mov_write_eac3_tag(pb, track);
703 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
704 track->enc->codec_id == AV_CODEC_ID_QDM2) {
705 mov_write_extradata_tag(pb, track);
706 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
707 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
708 mov_write_ms_tag(pb, track);
711 avio_wb32(pb, 8); /* size */
712 avio_wb32(pb, 0); /* null tag */
714 return update_size(pb, pos);
717 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
720 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
721 int unescaped_size, seq_found = 0;
722 int level = 0, interlace = 0;
723 int packet_seq = track->vc1_info.packet_seq;
724 int packet_entry = track->vc1_info.packet_entry;
725 int slices = track->vc1_info.slices;
728 if (track->start_dts == AV_NOPTS_VALUE) {
729 /* No packets written yet, vc1_info isn't authoritative yet. */
730 /* Assume inline sequence and entry headers. */
731 packet_seq = packet_entry = 1;
732 av_log(NULL, AV_LOG_WARNING,
733 "moov atom written before any packets, unable to write correct "
734 "dvc1 atom. Set the delay_moov flag to fix this.\n");
737 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
739 return AVERROR(ENOMEM);
740 start = find_next_marker(track->vos_data, end);
741 for (next = start; next < end; start = next) {
744 next = find_next_marker(start + 4, end);
745 size = next - start - 4;
748 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
749 init_get_bits(&gb, unescaped, 8 * unescaped_size);
750 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
751 int profile = get_bits(&gb, 2);
752 if (profile != PROFILE_ADVANCED) {
754 return AVERROR(ENOSYS);
757 level = get_bits(&gb, 3);
758 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
760 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
761 skip_bits(&gb, 1); /* broadcast */
762 interlace = get_bits1(&gb);
763 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
768 return AVERROR(ENOSYS);
771 init_put_bits(&pbc, buf, 7);
772 /* VC1DecSpecStruc */
773 put_bits(&pbc, 4, 12); /* profile - advanced */
774 put_bits(&pbc, 3, level);
775 put_bits(&pbc, 1, 0); /* reserved */
776 /* VC1AdvDecSpecStruc */
777 put_bits(&pbc, 3, level);
778 put_bits(&pbc, 1, 0); /* cbr */
779 put_bits(&pbc, 6, 0); /* reserved */
780 put_bits(&pbc, 1, !interlace); /* no interlace */
781 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
782 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
783 put_bits(&pbc, 1, !slices); /* no slice code */
784 put_bits(&pbc, 1, 0); /* no bframe */
785 put_bits(&pbc, 1, 0); /* reserved */
788 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
789 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
791 put_bits32(&pbc, 0xffffffff);
793 flush_put_bits(&pbc);
800 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
802 uint8_t buf[7] = { 0 };
805 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
808 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
809 ffio_wfourcc(pb, "dvc1");
810 avio_write(pb, buf, sizeof(buf));
811 avio_write(pb, track->vos_data, track->vos_len);
816 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
818 avio_wb32(pb, track->vos_len + 8);
819 ffio_wfourcc(pb, "glbl");
820 avio_write(pb, track->vos_data, track->vos_len);
821 return 8 + track->vos_len;
825 * Compute flags for 'lpcm' tag.
826 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
828 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
831 case AV_CODEC_ID_PCM_F32BE:
832 case AV_CODEC_ID_PCM_F64BE:
834 case AV_CODEC_ID_PCM_F32LE:
835 case AV_CODEC_ID_PCM_F64LE:
837 case AV_CODEC_ID_PCM_U8:
839 case AV_CODEC_ID_PCM_S16BE:
840 case AV_CODEC_ID_PCM_S24BE:
841 case AV_CODEC_ID_PCM_S32BE:
843 case AV_CODEC_ID_PCM_S8:
844 case AV_CODEC_ID_PCM_S16LE:
845 case AV_CODEC_ID_PCM_S24LE:
846 case AV_CODEC_ID_PCM_S32LE:
853 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
857 if (cluster_idx >= track->entry)
860 if (cluster_idx + 1 == track->entry)
861 next_dts = track->track_duration + track->start_dts;
863 next_dts = track->cluster[cluster_idx + 1].dts;
865 next_dts -= track->cluster[cluster_idx].dts;
867 av_assert0(next_dts >= 0);
868 av_assert0(next_dts <= INT_MAX);
873 static int get_samples_per_packet(MOVTrack *track)
875 int i, first_duration;
877 // return track->enc->frame_size;
879 /* use 1 for raw PCM */
880 if (!track->audio_vbr)
883 /* check to see if duration is constant for all clusters */
886 first_duration = get_cluster_duration(track, 0);
887 for (i = 1; i < track->entry; i++) {
888 if (get_cluster_duration(track, i) != first_duration)
891 return first_duration;
894 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
896 int64_t pos = avio_tell(pb);
898 uint32_t tag = track->tag;
900 if (track->mode == MODE_MOV) {
901 if (track->timescale > UINT16_MAX) {
902 if (mov_get_lpcm_flags(track->enc->codec_id))
903 tag = AV_RL32("lpcm");
905 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
906 mov_pcm_be_gt16(track->enc->codec_id) ||
907 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
908 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
909 track->enc->codec_id == AV_CODEC_ID_QDM2) {
914 avio_wb32(pb, 0); /* size */
915 avio_wl32(pb, tag); // store it byteswapped
916 avio_wb32(pb, 0); /* Reserved */
917 avio_wb16(pb, 0); /* Reserved */
918 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
920 /* SoundDescription */
921 avio_wb16(pb, version); /* Version */
922 avio_wb16(pb, 0); /* Revision level */
923 avio_wb32(pb, 0); /* Reserved */
928 avio_wb16(pb, 0xfffe);
930 avio_wb32(pb, 0x00010000);
932 avio_wb64(pb, av_double2int(track->enc->sample_rate));
933 avio_wb32(pb, track->enc->channels);
934 avio_wb32(pb, 0x7F000000);
935 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
936 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
937 avio_wb32(pb, track->sample_size);
938 avio_wb32(pb, get_samples_per_packet(track));
940 if (track->mode == MODE_MOV) {
941 avio_wb16(pb, track->enc->channels);
942 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
943 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
944 avio_wb16(pb, 8); /* bits per sample */
945 else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
946 avio_wb16(pb, track->enc->bits_per_coded_sample);
949 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
950 } else { /* reserved for mp4/3gp */
956 avio_wb16(pb, 0); /* packet size (= 0) */
957 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
958 track->enc->sample_rate : 0);
959 avio_wb16(pb, 0); /* Reserved */
962 if (version == 1) { /* SoundDescription V1 extended info */
963 if (mov_pcm_le_gt16(track->enc->codec_id) ||
964 mov_pcm_be_gt16(track->enc->codec_id))
965 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
967 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
968 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
969 avio_wb32(pb, track->sample_size); /* Bytes per frame */
970 avio_wb32(pb, 2); /* Bytes per sample */
973 if (track->mode == MODE_MOV &&
974 (track->enc->codec_id == AV_CODEC_ID_AAC ||
975 track->enc->codec_id == AV_CODEC_ID_AC3 ||
976 track->enc->codec_id == AV_CODEC_ID_EAC3 ||
977 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
978 track->enc->codec_id == AV_CODEC_ID_ALAC ||
979 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
980 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
981 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
982 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
983 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
984 mov_write_wave_tag(pb, track);
985 else if (track->tag == MKTAG('m','p','4','a'))
986 mov_write_esds_tag(pb, track);
987 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
988 mov_write_amr_tag(pb, track);
989 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
990 mov_write_ac3_tag(pb, track);
991 else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
992 mov_write_eac3_tag(pb, track);
993 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
994 mov_write_extradata_tag(pb, track);
995 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
996 mov_write_wfex_tag(pb, track);
997 else if (track->vos_len > 0)
998 mov_write_glbl_tag(pb, track);
1000 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1001 mov_write_chan_tag(pb, track);
1003 return update_size(pb, pos);
1006 static int mov_write_d263_tag(AVIOContext *pb)
1008 avio_wb32(pb, 0xf); /* size */
1009 ffio_wfourcc(pb, "d263");
1010 ffio_wfourcc(pb, "FFMP");
1011 avio_w8(pb, 0); /* decoder version */
1012 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1013 avio_w8(pb, 0xa); /* level */
1014 avio_w8(pb, 0); /* profile */
1018 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1020 int64_t pos = avio_tell(pb);
1023 ffio_wfourcc(pb, "avcC");
1024 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1025 return update_size(pb, pos);
1028 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1030 int64_t pos = avio_tell(pb);
1033 ffio_wfourcc(pb, "hvcC");
1034 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1035 return update_size(pb, pos);
1038 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1039 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1045 if (track->vos_data && track->vos_len > 0x29) {
1046 if (track->vos_data[0] == 0x00 &&
1047 track->vos_data[1] == 0x00 &&
1048 track->vos_data[2] == 0x02 &&
1049 track->vos_data[3] == 0x80 &&
1050 (track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
1051 /* looks like a DNxHD bit stream */
1052 interlaced = (track->vos_data[5] & 2);
1053 cid = AV_RB32(track->vos_data + 0x28);
1055 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1059 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1063 avio_wb32(pb, 24); /* size */
1064 ffio_wfourcc(pb, "ACLR");
1065 ffio_wfourcc(pb, "ACLR");
1066 ffio_wfourcc(pb, "0001");
1067 if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1068 track->enc->color_range == AVCOL_RANGE_UNSPECIFIED) {
1069 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1070 } else { /* Full range (0-255) */
1071 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1073 avio_wb32(pb, 0); /* unknown */
1075 avio_wb32(pb, 24); /* size */
1076 ffio_wfourcc(pb, "APRG");
1077 ffio_wfourcc(pb, "APRG");
1078 ffio_wfourcc(pb, "0001");
1079 avio_wb32(pb, 1); /* unknown */
1080 avio_wb32(pb, 0); /* unknown */
1082 avio_wb32(pb, 120); /* size */
1083 ffio_wfourcc(pb, "ARES");
1084 ffio_wfourcc(pb, "ARES");
1085 ffio_wfourcc(pb, "0001");
1086 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1087 avio_wb32(pb, track->enc->width);
1088 /* values below are based on samples created with quicktime and avid codecs */
1090 avio_wb32(pb, track->enc->height / 2);
1091 avio_wb32(pb, 2); /* unknown */
1092 avio_wb32(pb, 0); /* unknown */
1093 avio_wb32(pb, 4); /* unknown */
1095 avio_wb32(pb, track->enc->height);
1096 avio_wb32(pb, 1); /* unknown */
1097 avio_wb32(pb, 0); /* unknown */
1098 if (track->enc->height == 1080)
1099 avio_wb32(pb, 5); /* unknown */
1101 avio_wb32(pb, 6); /* unknown */
1104 for (i = 0; i < 10; i++)
1110 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1113 ffio_wfourcc(pb, "DpxE");
1114 if (track->enc->extradata_size >= 12 &&
1115 !memcmp(&track->enc->extradata[4], "DpxE", 4)) {
1116 avio_wb32(pb, track->enc->extradata[11]);
1123 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1125 int tag = track->enc->codec_tag;
1127 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1130 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1131 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1132 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1133 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1134 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1135 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1136 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1137 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1138 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1139 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1144 static const AVCodecTag codec_ipod_tags[] = {
1145 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1146 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1147 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1148 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1149 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1150 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1151 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1152 { AV_CODEC_ID_NONE, 0 },
1155 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1157 int tag = track->enc->codec_tag;
1159 // keep original tag for subs, ipod supports both formats
1160 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1161 (tag == MKTAG('t', 'x', '3', 'g') ||
1162 tag == MKTAG('t', 'e', 'x', 't'))))
1163 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1165 if (!av_match_ext(s->filename, "m4a") &&
1166 !av_match_ext(s->filename, "m4b") &&
1167 !av_match_ext(s->filename, "m4v"))
1168 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1169 "Quicktime/Ipod might not play the file\n");
1174 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1178 if (track->enc->width == 720) { /* SD */
1179 if (track->enc->height == 480) { /* NTSC */
1180 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1181 else tag = MKTAG('d','v','c',' ');
1182 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1183 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1184 else tag = MKTAG('d','v','p','p');
1185 } else if (track->enc->height == 720) { /* HD 720 line */
1186 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1187 else tag = MKTAG('d','v','h','p');
1188 } else if (track->enc->height == 1080) { /* HD 1080 line */
1189 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1190 else tag = MKTAG('d','v','h','6');
1192 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1199 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1201 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1202 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1203 if (av_timecode_check_frame_rate(rate) < 0) {
1204 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1205 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1206 rate = st->avg_frame_rate;
1212 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1214 int tag = track->enc->codec_tag;
1215 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1216 AVStream *st = track->st;
1217 int rate = av_q2d(find_fps(s, st));
1220 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1222 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1223 if (track->enc->width == 1280 && track->enc->height == 720) {
1225 if (rate == 24) tag = MKTAG('x','d','v','4');
1226 else if (rate == 25) tag = MKTAG('x','d','v','5');
1227 else if (rate == 30) tag = MKTAG('x','d','v','1');
1228 else if (rate == 50) tag = MKTAG('x','d','v','a');
1229 else if (rate == 60) tag = MKTAG('x','d','v','9');
1231 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1233 if (rate == 24) tag = MKTAG('x','d','v','6');
1234 else if (rate == 25) tag = MKTAG('x','d','v','7');
1235 else if (rate == 30) tag = MKTAG('x','d','v','8');
1237 if (rate == 25) tag = MKTAG('x','d','v','3');
1238 else if (rate == 30) tag = MKTAG('x','d','v','2');
1240 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1242 if (rate == 24) tag = MKTAG('x','d','v','d');
1243 else if (rate == 25) tag = MKTAG('x','d','v','e');
1244 else if (rate == 30) tag = MKTAG('x','d','v','f');
1246 if (rate == 25) tag = MKTAG('x','d','v','c');
1247 else if (rate == 30) tag = MKTAG('x','d','v','b');
1250 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1251 if (track->enc->width == 1280 && track->enc->height == 720) {
1253 if (rate == 24) tag = MKTAG('x','d','5','4');
1254 else if (rate == 25) tag = MKTAG('x','d','5','5');
1255 else if (rate == 30) tag = MKTAG('x','d','5','1');
1256 else if (rate == 50) tag = MKTAG('x','d','5','a');
1257 else if (rate == 60) tag = MKTAG('x','d','5','9');
1259 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1261 if (rate == 24) tag = MKTAG('x','d','5','d');
1262 else if (rate == 25) tag = MKTAG('x','d','5','e');
1263 else if (rate == 30) tag = MKTAG('x','d','5','f');
1265 if (rate == 25) tag = MKTAG('x','d','5','c');
1266 else if (rate == 30) tag = MKTAG('x','d','5','b');
1274 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1276 int tag = track->enc->codec_tag;
1277 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1278 AVStream *st = track->st;
1279 int rate = av_q2d(find_fps(s, st));
1282 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1284 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1285 if (track->enc->width == 960 && track->enc->height == 720) {
1287 if (rate == 24) tag = MKTAG('a','i','5','p');
1288 else if (rate == 25) tag = MKTAG('a','i','5','q');
1289 else if (rate == 30) tag = MKTAG('a','i','5','p');
1290 else if (rate == 50) tag = MKTAG('a','i','5','q');
1291 else if (rate == 60) tag = MKTAG('a','i','5','p');
1293 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1295 if (rate == 24) tag = MKTAG('a','i','5','3');
1296 else if (rate == 25) tag = MKTAG('a','i','5','2');
1297 else if (rate == 30) tag = MKTAG('a','i','5','3');
1299 if (rate == 50) tag = MKTAG('a','i','5','5');
1300 else if (rate == 60) tag = MKTAG('a','i','5','6');
1303 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1304 if (track->enc->width == 1280 && track->enc->height == 720) {
1306 if (rate == 24) tag = MKTAG('a','i','1','p');
1307 else if (rate == 25) tag = MKTAG('a','i','1','q');
1308 else if (rate == 30) tag = MKTAG('a','i','1','p');
1309 else if (rate == 50) tag = MKTAG('a','i','1','q');
1310 else if (rate == 60) tag = MKTAG('a','i','1','p');
1312 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1314 if (rate == 24) tag = MKTAG('a','i','1','3');
1315 else if (rate == 25) tag = MKTAG('a','i','1','2');
1316 else if (rate == 30) tag = MKTAG('a','i','1','3');
1318 if (rate == 25) tag = MKTAG('a','i','1','5');
1319 else if (rate == 50) tag = MKTAG('a','i','1','5');
1320 else if (rate == 60) tag = MKTAG('a','i','1','6');
1322 } else if ( track->enc->width == 4096 && track->enc->height == 2160
1323 || track->enc->width == 3840 && track->enc->height == 2160
1324 || track->enc->width == 2048 && track->enc->height == 1080) {
1325 tag = MKTAG('a','i','v','x');
1332 static const struct {
1333 enum AVPixelFormat pix_fmt;
1336 } mov_pix_fmt_tags[] = {
1337 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1338 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1339 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1340 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1341 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1342 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1343 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1344 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1345 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1346 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1347 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1348 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1349 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1350 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1351 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1354 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1356 int tag = track->enc->codec_tag;
1358 enum AVPixelFormat pix_fmt;
1360 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1361 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1362 tag = mov_pix_fmt_tags[i].tag;
1363 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1364 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1369 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1370 track->enc->bits_per_coded_sample);
1371 if (tag == MKTAG('r','a','w',' ') &&
1372 track->enc->pix_fmt != pix_fmt &&
1373 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1374 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1375 av_get_pix_fmt_name(track->enc->pix_fmt));
1379 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1381 int tag = track->enc->codec_tag;
1383 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1384 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1385 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1386 track->enc->codec_id == AV_CODEC_ID_H263 ||
1387 track->enc->codec_id == AV_CODEC_ID_H264 ||
1388 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1389 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1390 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1391 tag = mov_get_dv_codec_tag(s, track);
1392 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1393 tag = mov_get_rawvideo_codec_tag(s, track);
1394 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1395 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1396 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1397 tag = mov_get_h264_codec_tag(s, track);
1398 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1399 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1400 if (!tag) { // if no mac fcc found, try with Microsoft tags
1401 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1403 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1404 "the file may be unplayable!\n");
1406 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1407 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1408 if (!tag) { // if no mac fcc found, try with Microsoft tags
1409 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1411 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1412 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1413 "the file may be unplayable!\n");
1416 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1417 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1423 static const AVCodecTag codec_3gp_tags[] = {
1424 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1425 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1426 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1427 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1428 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1429 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1430 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1431 { AV_CODEC_ID_NONE, 0 },
1434 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1435 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1436 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1437 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1438 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1439 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1440 { AV_CODEC_ID_NONE, 0 },
1443 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1447 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1448 tag = mp4_get_codec_tag(s, track);
1449 else if (track->mode == MODE_ISM) {
1450 tag = mp4_get_codec_tag(s, track);
1451 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1452 tag = MKTAG('w', 'm', 'a', ' ');
1453 } else if (track->mode == MODE_IPOD)
1454 tag = ipod_get_codec_tag(s, track);
1455 else if (track->mode & MODE_3GP)
1456 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1457 else if (track->mode == MODE_F4V)
1458 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1460 tag = mov_get_codec_tag(s, track);
1465 /** Write uuid atom.
1466 * Needed to make file play in iPods running newest firmware
1467 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1469 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1472 ffio_wfourcc(pb, "uuid");
1473 avio_wb32(pb, 0x6b6840f2);
1474 avio_wb32(pb, 0x5f244fc5);
1475 avio_wb32(pb, 0xba39a51b);
1476 avio_wb32(pb, 0xcf0323f3);
1481 static const uint16_t fiel_data[] = {
1482 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1485 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1487 unsigned mov_field_order = 0;
1488 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1489 mov_field_order = fiel_data[track->enc->field_order];
1493 ffio_wfourcc(pb, "fiel");
1494 avio_wb16(pb, mov_field_order);
1498 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1500 int64_t pos = avio_tell(pb);
1501 avio_wb32(pb, 0); /* size */
1502 avio_wl32(pb, track->tag); // store it byteswapped
1503 avio_wb32(pb, 0); /* Reserved */
1504 avio_wb16(pb, 0); /* Reserved */
1505 avio_wb16(pb, 1); /* Data-reference index */
1507 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1508 mov_write_esds_tag(pb, track);
1509 else if (track->enc->extradata_size)
1510 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1512 return update_size(pb, pos);
1515 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1518 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1519 track->enc->sample_aspect_ratio.den, INT_MAX);
1522 ffio_wfourcc(pb, "pasp");
1523 avio_wb32(pb, sar.num);
1524 avio_wb32(pb, sar.den);
1528 static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
1533 gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
1535 av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1538 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1539 av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
1541 av_assert0(track->mode == MODE_MOV);
1543 ffio_wfourcc(pb, "gama");
1544 avio_wb32(pb, gama);
1548 av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1553 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1555 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1556 // Ref (MP4): ISO/IEC 14496-12:2012
1558 if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1559 track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
1560 track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
1561 if ((track->enc->width >= 1920 && track->enc->height >= 1080)
1562 || (track->enc->width == 1280 && track->enc->height == 720)) {
1563 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1564 track->enc->color_primaries = AVCOL_PRI_BT709;
1565 } else if (track->enc->width == 720 && track->height == 576) {
1566 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1567 track->enc->color_primaries = AVCOL_PRI_BT470BG;
1568 } else if (track->enc->width == 720 &&
1569 (track->height == 486 || track->height == 480)) {
1570 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1571 track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
1573 av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1575 switch (track->enc->color_primaries) {
1576 case AVCOL_PRI_BT709:
1577 track->enc->color_trc = AVCOL_TRC_BT709;
1578 track->enc->colorspace = AVCOL_SPC_BT709;
1580 case AVCOL_PRI_SMPTE170M:
1581 case AVCOL_PRI_BT470BG:
1582 track->enc->color_trc = AVCOL_TRC_BT709;
1583 track->enc->colorspace = AVCOL_SPC_SMPTE170M;
1588 /* We should only ever be called by MOV or MP4. */
1589 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1591 avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1592 ffio_wfourcc(pb, "colr");
1593 if (track->mode == MODE_MP4)
1594 ffio_wfourcc(pb, "nclx");
1596 ffio_wfourcc(pb, "nclc");
1597 switch (track->enc->color_primaries) {
1598 case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1599 case AVCOL_PRI_SMPTE170M:
1600 case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1601 case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1602 default: avio_wb16(pb, 2);
1604 switch (track->enc->color_trc) {
1605 case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1606 case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1607 case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1608 default: avio_wb16(pb, 2);
1610 switch (track->enc->colorspace) {
1611 case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1612 case AVCOL_SPC_BT470BG:
1613 case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1614 case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1615 default: avio_wb16(pb, 2);
1618 if (track->mode == MODE_MP4) {
1619 int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
1620 avio_w8(pb, full_range << 7);
1627 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1629 AVDictionaryEntry *encoder;
1630 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1631 || (track->enc->width == 1440 && track->enc->height == 1080)
1632 || (track->enc->width == 1920 && track->enc->height == 1080);
1634 if (track->mode == MODE_MOV &&
1635 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1636 av_strlcpy(compressor_name, encoder->value, 32);
1637 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1638 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1639 AVStream *st = track->st;
1640 int rate = av_q2d(find_fps(NULL, st));
1641 av_strlcatf(compressor_name, len, "XDCAM");
1642 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1643 av_strlcatf(compressor_name, len, " HD422");
1644 } else if(track->enc->width == 1440) {
1645 av_strlcatf(compressor_name, len, " HD");
1647 av_strlcatf(compressor_name, len, " EX");
1649 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1651 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1655 static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1657 int64_t pos = avio_tell(pb);
1658 char compressor_name[32] = { 0 };
1661 avio_wb32(pb, 0); /* size */
1662 avio_wl32(pb, track->tag); // store it byteswapped
1663 avio_wb32(pb, 0); /* Reserved */
1664 avio_wb16(pb, 0); /* Reserved */
1665 avio_wb16(pb, 1); /* Data-reference index */
1667 avio_wb16(pb, 0); /* Codec stream version */
1668 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1669 if (track->mode == MODE_MOV) {
1670 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1671 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1672 avio_wb32(pb, 0); /* Temporal Quality */
1673 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1675 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1676 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1679 avio_wb32(pb, 0); /* Reserved */
1680 avio_wb32(pb, 0); /* Reserved */
1681 avio_wb32(pb, 0); /* Reserved */
1683 avio_wb16(pb, track->enc->width); /* Video width */
1684 avio_wb16(pb, track->height); /* Video height */
1685 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1686 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1687 avio_wb32(pb, 0); /* Data size (= 0) */
1688 avio_wb16(pb, 1); /* Frame count (= 1) */
1690 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1691 find_compressor(compressor_name, 32, track);
1692 avio_w8(pb, strlen(compressor_name));
1693 avio_write(pb, compressor_name, 31);
1695 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1696 avio_wb16(pb, track->enc->bits_per_coded_sample);
1698 avio_wb16(pb, 0x18); /* Reserved */
1699 avio_wb16(pb, 0xffff); /* Reserved */
1700 if (track->tag == MKTAG('m','p','4','v'))
1701 mov_write_esds_tag(pb, track);
1702 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1703 mov_write_d263_tag(pb);
1704 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1705 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1706 mov_write_extradata_tag(pb, track);
1708 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
1709 mov_write_avid_tag(pb, track);
1711 } else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1712 mov_write_hvcc_tag(pb, track);
1713 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1714 mov_write_avcc_tag(pb, track);
1715 if (track->mode == MODE_IPOD)
1716 mov_write_uuid_tag_ipod(pb);
1717 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1718 mov_write_dvc1_tag(pb, track);
1719 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1720 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1721 /* Don't write any potential extradata here - the cropping
1722 * is signalled via the normal width/height fields. */
1723 } else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
1724 if (track->enc->codec_tag == MKTAG('R','1','0','k'))
1725 mov_write_dpxe_tag(pb, track);
1726 } else if (track->vos_len > 0)
1727 mov_write_glbl_tag(pb, track);
1729 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1730 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1731 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1732 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1733 mov_write_fiel_tag(pb, track);
1735 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
1736 if (track->mode == MODE_MOV)
1737 mov_write_gama_tag(pb, track, mov->gamma);
1739 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
1741 if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
1742 if (track->mode == MODE_MOV || track->mode == MODE_MP4)
1743 mov_write_colr_tag(pb, track);
1745 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
1748 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1749 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1750 mov_write_pasp_tag(pb, track);
1753 /* extra padding for avid stsd */
1754 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
1758 return update_size(pb, pos);
1761 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1763 int64_t pos = avio_tell(pb);
1764 avio_wb32(pb, 0); /* size */
1765 ffio_wfourcc(pb, "rtp ");
1766 avio_wb32(pb, 0); /* Reserved */
1767 avio_wb16(pb, 0); /* Reserved */
1768 avio_wb16(pb, 1); /* Data-reference index */
1770 avio_wb16(pb, 1); /* Hint track version */
1771 avio_wb16(pb, 1); /* Highest compatible version */
1772 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1774 avio_wb32(pb, 12); /* size */
1775 ffio_wfourcc(pb, "tims");
1776 avio_wb32(pb, track->timescale);
1778 return update_size(pb, pos);
1781 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1783 uint64_t str_size =strlen(reel_name);
1784 int64_t pos = avio_tell(pb);
1786 if (str_size >= UINT16_MAX){
1787 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1789 return AVERROR(EINVAL);
1792 avio_wb32(pb, 0); /* size */
1793 ffio_wfourcc(pb, "name"); /* Data format */
1794 avio_wb16(pb, str_size); /* string size */
1795 avio_wb16(pb, track->language); /* langcode */
1796 avio_write(pb, reel_name, str_size); /* reel name */
1797 return update_size(pb,pos);
1800 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1802 int64_t pos = avio_tell(pb);
1804 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1805 int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
1806 AVDictionaryEntry *t = NULL;
1808 if (nb_frames > 255) {
1809 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1810 return AVERROR(EINVAL);
1813 avio_wb32(pb, 0); /* size */
1814 ffio_wfourcc(pb, "tmcd"); /* Data format */
1815 avio_wb32(pb, 0); /* Reserved */
1816 avio_wb32(pb, 1); /* Data reference index */
1817 avio_wb32(pb, 0); /* Flags */
1818 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1819 avio_wb32(pb, track->timescale); /* Timescale */
1820 avio_wb32(pb, frame_duration); /* Frame duration */
1821 avio_w8(pb, nb_frames); /* Number of frames */
1822 avio_w8(pb, 0); /* Reserved */
1825 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1827 if (t && utf8len(t->value))
1828 mov_write_source_reference_tag(pb, track, t->value);
1830 avio_wb16(pb, 0); /* zero size */
1833 avio_wb32(pb, 0); /* size */
1834 ffio_wfourcc(pb, "tmcd"); /* Data format */
1835 avio_wb32(pb, 0); /* Reserved */
1836 avio_wb32(pb, 1); /* Data reference index */
1837 if (track->enc->extradata_size)
1838 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1840 return update_size(pb, pos);
1843 static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1845 int64_t pos = avio_tell(pb);
1846 avio_wb32(pb, 0); /* size */
1847 ffio_wfourcc(pb, "stsd");
1848 avio_wb32(pb, 0); /* version & flags */
1849 avio_wb32(pb, 1); /* entry count */
1850 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1851 mov_write_video_tag(pb, mov, track);
1852 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1853 mov_write_audio_tag(pb, track);
1854 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1855 mov_write_subtitle_tag(pb, track);
1856 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1857 mov_write_rtp_tag(pb, track);
1858 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1859 mov_write_tmcd_tag(pb, track);
1860 return update_size(pb, pos);
1863 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1865 MOVStts *ctts_entries;
1866 uint32_t entries = 0;
1870 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1872 return AVERROR(ENOMEM);
1873 ctts_entries[0].count = 1;
1874 ctts_entries[0].duration = track->cluster[0].cts;
1875 for (i = 1; i < track->entry; i++) {
1876 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1877 ctts_entries[entries].count++; /* compress */
1880 ctts_entries[entries].duration = track->cluster[i].cts;
1881 ctts_entries[entries].count = 1;
1884 entries++; /* last one */
1885 atom_size = 16 + (entries * 8);
1886 avio_wb32(pb, atom_size); /* size */
1887 ffio_wfourcc(pb, "ctts");
1888 avio_wb32(pb, 0); /* version & flags */
1889 avio_wb32(pb, entries); /* entry count */
1890 for (i = 0; i < entries; i++) {
1891 avio_wb32(pb, ctts_entries[i].count);
1892 avio_wb32(pb, ctts_entries[i].duration);
1894 av_free(ctts_entries);
1898 /* Time to sample atom */
1899 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1901 MOVStts *stts_entries = NULL;
1902 uint32_t entries = -1;
1906 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1907 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1909 return AVERROR(ENOMEM);
1910 stts_entries[0].count = track->sample_count;
1911 stts_entries[0].duration = 1;
1915 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
1917 return AVERROR(ENOMEM);
1919 for (i = 0; i < track->entry; i++) {
1920 int duration = get_cluster_duration(track, i);
1921 if (i && duration == stts_entries[entries].duration) {
1922 stts_entries[entries].count++; /* compress */
1925 stts_entries[entries].duration = duration;
1926 stts_entries[entries].count = 1;
1929 entries++; /* last one */
1931 atom_size = 16 + (entries * 8);
1932 avio_wb32(pb, atom_size); /* size */
1933 ffio_wfourcc(pb, "stts");
1934 avio_wb32(pb, 0); /* version & flags */
1935 avio_wb32(pb, entries); /* entry count */
1936 for (i = 0; i < entries; i++) {
1937 avio_wb32(pb, stts_entries[i].count);
1938 avio_wb32(pb, stts_entries[i].duration);
1940 av_free(stts_entries);
1944 static int mov_write_dref_tag(AVIOContext *pb)
1946 avio_wb32(pb, 28); /* size */
1947 ffio_wfourcc(pb, "dref");
1948 avio_wb32(pb, 0); /* version & flags */
1949 avio_wb32(pb, 1); /* entry count */
1951 avio_wb32(pb, 0xc); /* size */
1952 //FIXME add the alis and rsrc atom
1953 ffio_wfourcc(pb, "url ");
1954 avio_wb32(pb, 1); /* version & flags */
1959 static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1961 int64_t pos = avio_tell(pb);
1964 avio_wb32(pb, 0); /* size */
1965 ffio_wfourcc(pb, "stbl");
1966 mov_write_stsd_tag(pb, mov, track);
1967 mov_write_stts_tag(pb, track);
1968 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1969 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1970 track->has_keyframes && track->has_keyframes < track->entry)
1971 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1972 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1973 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1974 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1975 track->flags & MOV_TRACK_CTTS && track->entry) {
1977 if ((ret = mov_write_ctts_tag(pb, track)) < 0)
1980 mov_write_stsc_tag(pb, track);
1981 mov_write_stsz_tag(pb, track);
1982 mov_write_stco_tag(pb, track);
1983 return update_size(pb, pos);
1986 static int mov_write_dinf_tag(AVIOContext *pb)
1988 int64_t pos = avio_tell(pb);
1989 avio_wb32(pb, 0); /* size */
1990 ffio_wfourcc(pb, "dinf");
1991 mov_write_dref_tag(pb);
1992 return update_size(pb, pos);
1995 static int mov_write_nmhd_tag(AVIOContext *pb)
1998 ffio_wfourcc(pb, "nmhd");
2003 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2005 int64_t pos = avio_tell(pb);
2006 const char *font = "Lucida Grande";
2007 avio_wb32(pb, 0); /* size */
2008 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2009 avio_wb32(pb, 0); /* version & flags */
2010 avio_wb16(pb, 0); /* text font */
2011 avio_wb16(pb, 0); /* text face */
2012 avio_wb16(pb, 12); /* text size */
2013 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2014 avio_wb16(pb, 0x0000); /* text color (red) */
2015 avio_wb16(pb, 0x0000); /* text color (green) */
2016 avio_wb16(pb, 0x0000); /* text color (blue) */
2017 avio_wb16(pb, 0xffff); /* background color (red) */
2018 avio_wb16(pb, 0xffff); /* background color (green) */
2019 avio_wb16(pb, 0xffff); /* background color (blue) */
2020 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2021 avio_write(pb, font, strlen(font)); /* font name */
2022 return update_size(pb, pos);
2025 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2027 int64_t pos = avio_tell(pb);
2028 avio_wb32(pb, 0); /* size */
2029 ffio_wfourcc(pb, "gmhd");
2030 avio_wb32(pb, 0x18); /* gmin size */
2031 ffio_wfourcc(pb, "gmin");/* generic media info */
2032 avio_wb32(pb, 0); /* version & flags */
2033 avio_wb16(pb, 0x40); /* graphics mode = */
2034 avio_wb16(pb, 0x8000); /* opColor (r?) */
2035 avio_wb16(pb, 0x8000); /* opColor (g?) */
2036 avio_wb16(pb, 0x8000); /* opColor (b?) */
2037 avio_wb16(pb, 0); /* balance */
2038 avio_wb16(pb, 0); /* reserved */
2041 * This special text atom is required for
2042 * Apple Quicktime chapters. The contents
2043 * don't appear to be documented, so the
2044 * bytes are copied verbatim.
2046 if (track->tag != MKTAG('c','6','0','8')) {
2047 avio_wb32(pb, 0x2C); /* size */
2048 ffio_wfourcc(pb, "text");
2049 avio_wb16(pb, 0x01);
2050 avio_wb32(pb, 0x00);
2051 avio_wb32(pb, 0x00);
2052 avio_wb32(pb, 0x00);
2053 avio_wb32(pb, 0x01);
2054 avio_wb32(pb, 0x00);
2055 avio_wb32(pb, 0x00);
2056 avio_wb32(pb, 0x00);
2057 avio_wb32(pb, 0x00004000);
2058 avio_wb16(pb, 0x0000);
2061 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2062 int64_t tmcd_pos = avio_tell(pb);
2063 avio_wb32(pb, 0); /* size */
2064 ffio_wfourcc(pb, "tmcd");
2065 mov_write_tcmi_tag(pb, track);
2066 update_size(pb, tmcd_pos);
2068 return update_size(pb, pos);
2071 static int mov_write_smhd_tag(AVIOContext *pb)
2073 avio_wb32(pb, 16); /* size */
2074 ffio_wfourcc(pb, "smhd");
2075 avio_wb32(pb, 0); /* version & flags */
2076 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2077 avio_wb16(pb, 0); /* reserved */
2081 static int mov_write_vmhd_tag(AVIOContext *pb)
2083 avio_wb32(pb, 0x14); /* size (always 0x14) */
2084 ffio_wfourcc(pb, "vmhd");
2085 avio_wb32(pb, 0x01); /* version & flags */
2086 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2090 static int is_clcp_track(MOVTrack *track)
2092 return track->tag == MKTAG('c','7','0','8') ||
2093 track->tag == MKTAG('c','6','0','8');
2096 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
2098 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2099 int64_t pos = avio_tell(pb);
2103 descr = "DataHandler";
2106 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2107 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2109 descr = "VideoHandler";
2110 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2112 descr = "SoundHandler";
2113 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2114 if (is_clcp_track(track)) {
2116 descr = "ClosedCaptionHandler";
2118 if (track->tag == MKTAG('t','x','3','g')) {
2120 } else if (track->tag == MKTAG('m','p','4','s')) {
2125 descr = "SubtitleHandler";
2127 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
2129 descr = "HintHandler";
2130 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
2132 descr = "TimeCodeHandler";
2135 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
2136 track->enc->codec_tag);
2138 av_log(track->enc, AV_LOG_WARNING,
2139 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
2140 tag_buf, track->enc->codec_tag);
2143 // hdlr.name is used by some players to identify the content title
2144 // of the track. So if an alternate handler description is
2145 // specified, use it.
2146 AVDictionaryEntry *t;
2147 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
2148 if (t && utf8len(t->value))
2153 avio_wb32(pb, 0); /* size */
2154 ffio_wfourcc(pb, "hdlr");
2155 avio_wb32(pb, 0); /* Version & flags */
2156 avio_write(pb, hdlr, 4); /* handler */
2157 ffio_wfourcc(pb, hdlr_type); /* handler type */
2158 avio_wb32(pb, 0); /* reserved */
2159 avio_wb32(pb, 0); /* reserved */
2160 avio_wb32(pb, 0); /* reserved */
2161 if (!track || track->mode == MODE_MOV)
2162 avio_w8(pb, strlen(descr)); /* pascal string */
2163 avio_write(pb, descr, strlen(descr)); /* handler description */
2164 if (track && track->mode != MODE_MOV)
2165 avio_w8(pb, 0); /* c string */
2166 return update_size(pb, pos);
2169 static int mov_write_hmhd_tag(AVIOContext *pb)
2171 /* This atom must be present, but leaving the values at zero
2172 * seems harmless. */
2173 avio_wb32(pb, 28); /* size */
2174 ffio_wfourcc(pb, "hmhd");
2175 avio_wb32(pb, 0); /* version, flags */
2176 avio_wb16(pb, 0); /* maxPDUsize */
2177 avio_wb16(pb, 0); /* avgPDUsize */
2178 avio_wb32(pb, 0); /* maxbitrate */
2179 avio_wb32(pb, 0); /* avgbitrate */
2180 avio_wb32(pb, 0); /* reserved */
2184 static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2186 int64_t pos = avio_tell(pb);
2189 avio_wb32(pb, 0); /* size */
2190 ffio_wfourcc(pb, "minf");
2191 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2192 mov_write_vmhd_tag(pb);
2193 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2194 mov_write_smhd_tag(pb);
2195 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2196 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2197 mov_write_gmhd_tag(pb, track);
2199 mov_write_nmhd_tag(pb);
2201 } else if (track->tag == MKTAG('r','t','p',' ')) {
2202 mov_write_hmhd_tag(pb);
2203 } else if (track->tag == MKTAG('t','m','c','d')) {
2204 mov_write_gmhd_tag(pb, track);
2206 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2207 mov_write_hdlr_tag(pb, NULL);
2208 mov_write_dinf_tag(pb);
2209 if ((ret = mov_write_stbl_tag(pb, mov, track)) < 0)
2211 return update_size(pb, pos);
2214 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2217 int version = track->track_duration < INT32_MAX ? 0 : 1;
2219 if (track->mode == MODE_ISM)
2222 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2223 ffio_wfourcc(pb, "mdhd");
2224 avio_w8(pb, version);
2225 avio_wb24(pb, 0); /* flags */
2227 avio_wb64(pb, track->time);
2228 avio_wb64(pb, track->time);
2230 avio_wb32(pb, track->time); /* creation time */
2231 avio_wb32(pb, track->time); /* modification time */
2233 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2234 if (!track->entry && mov->mode == MODE_ISM)
2235 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2236 else if (!track->entry)
2237 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2239 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2240 avio_wb16(pb, track->language); /* language */
2241 avio_wb16(pb, 0); /* reserved (quality) */
2243 if (version != 0 && track->mode == MODE_MOV) {
2244 av_log(NULL, AV_LOG_ERROR,
2245 "FATAL error, file duration too long for timebase, this file will not be\n"
2246 "playable with quicktime. Choose a different timebase or a different\n"
2247 "container format\n");
2253 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2256 int64_t pos = avio_tell(pb);
2259 avio_wb32(pb, 0); /* size */
2260 ffio_wfourcc(pb, "mdia");
2261 mov_write_mdhd_tag(pb, mov, track);
2262 mov_write_hdlr_tag(pb, track);
2263 if ((ret = mov_write_minf_tag(pb, mov, track)) < 0)
2265 return update_size(pb, pos);
2268 /* transformation matrix
2272 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2273 int16_t d, int16_t tx, int16_t ty)
2275 avio_wb32(pb, a << 16); /* 16.16 format */
2276 avio_wb32(pb, b << 16); /* 16.16 format */
2277 avio_wb32(pb, 0); /* u in 2.30 format */
2278 avio_wb32(pb, c << 16); /* 16.16 format */
2279 avio_wb32(pb, d << 16); /* 16.16 format */
2280 avio_wb32(pb, 0); /* v in 2.30 format */
2281 avio_wb32(pb, tx << 16); /* 16.16 format */
2282 avio_wb32(pb, ty << 16); /* 16.16 format */
2283 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2286 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2287 MOVTrack *track, AVStream *st)
2289 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2290 track->timescale, AV_ROUND_UP);
2291 int version = duration < INT32_MAX ? 0 : 1;
2292 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2296 uint32_t *display_matrix = NULL;
2297 int display_matrix_size, i;
2300 if (mov->per_stream_grouping)
2303 group = st->codec->codec_type;
2305 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2306 &display_matrix_size);
2307 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2308 display_matrix = NULL;
2311 if (track->flags & MOV_TRACK_ENABLED)
2312 flags |= MOV_TKHD_FLAG_ENABLED;
2314 if (track->mode == MODE_ISM)
2317 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2318 ffio_wfourcc(pb, "tkhd");
2319 avio_w8(pb, version);
2320 avio_wb24(pb, flags);
2322 avio_wb64(pb, track->time);
2323 avio_wb64(pb, track->time);
2325 avio_wb32(pb, track->time); /* creation time */
2326 avio_wb32(pb, track->time); /* modification time */
2328 avio_wb32(pb, track->track_id); /* track-id */
2329 avio_wb32(pb, 0); /* reserved */
2330 if (!track->entry && mov->mode == MODE_ISM)
2331 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2332 else if (!track->entry)
2333 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2335 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2337 avio_wb32(pb, 0); /* reserved */
2338 avio_wb32(pb, 0); /* reserved */
2339 avio_wb16(pb, 0); /* layer */
2340 avio_wb16(pb, group); /* alternate group) */
2341 /* Volume, only for audio */
2342 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2343 avio_wb16(pb, 0x0100);
2346 avio_wb16(pb, 0); /* reserved */
2348 /* Matrix structure */
2349 if (st && st->metadata) {
2350 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2351 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2353 if (display_matrix) {
2354 for (i = 0; i < 9; i++)
2355 avio_wb32(pb, display_matrix[i]);
2356 } else if (rotation == 90) {
2357 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2358 } else if (rotation == 180) {
2359 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2360 } else if (rotation == 270) {
2361 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2363 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2365 /* Track width and height, for visual only */
2366 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2367 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2368 if (track->mode == MODE_MOV) {
2369 avio_wb32(pb, track->enc->width << 16);
2370 avio_wb32(pb, track->height << 16);
2372 int64_t track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2373 track->enc->width * 0x10000LL,
2374 st->sample_aspect_ratio.den);
2375 if (!track_width_1616 ||
2376 track->height != track->enc->height ||
2377 track_width_1616 > UINT32_MAX)
2378 track_width_1616 = track->enc->width * 0x10000U;
2379 avio_wb32(pb, track_width_1616);
2380 avio_wb32(pb, track->height * 0x10000U);
2389 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2391 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2392 track->enc->sample_aspect_ratio.den);
2394 int64_t pos = avio_tell(pb);
2396 avio_wb32(pb, 0); /* size */
2397 ffio_wfourcc(pb, "tapt");
2400 ffio_wfourcc(pb, "clef");
2402 avio_wb32(pb, width << 16);
2403 avio_wb32(pb, track->enc->height << 16);
2406 ffio_wfourcc(pb, "prof");
2408 avio_wb32(pb, width << 16);
2409 avio_wb32(pb, track->enc->height << 16);
2412 ffio_wfourcc(pb, "enof");
2414 avio_wb32(pb, track->enc->width << 16);
2415 avio_wb32(pb, track->enc->height << 16);
2417 return update_size(pb, pos);
2420 // This box seems important for the psp playback ... without it the movie seems to hang
2421 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2424 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2425 track->timescale, AV_ROUND_UP);
2426 int version = duration < INT32_MAX ? 0 : 1;
2427 int entry_size, entry_count, size;
2428 int64_t delay, start_ct = track->start_cts;
2429 int64_t start_dts = track->start_dts;
2432 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2434 av_log(mov->fc, AV_LOG_DEBUG,
2435 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2436 track->cluster[0].dts, track->cluster[0].cts,
2437 start_dts, start_ct, track->track_id);
2438 start_dts = track->cluster[0].dts;
2439 start_ct = track->cluster[0].cts;
2443 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2444 track->timescale, AV_ROUND_DOWN);
2445 version |= delay < INT32_MAX ? 0 : 1;
2447 entry_size = (version == 1) ? 20 : 12;
2448 entry_count = 1 + (delay > 0);
2449 size = 24 + entry_count * entry_size;
2451 /* write the atom data */
2452 avio_wb32(pb, size);
2453 ffio_wfourcc(pb, "edts");
2454 avio_wb32(pb, size - 8);
2455 ffio_wfourcc(pb, "elst");
2456 avio_w8(pb, version);
2457 avio_wb24(pb, 0); /* flags */
2459 avio_wb32(pb, entry_count);
2460 if (delay > 0) { /* add an empty edit to delay presentation */
2461 /* In the positive delay case, the delay includes the cts
2462 * offset, and the second edit list entry below trims out
2463 * the same amount from the actual content. This makes sure
2464 * that the offsetted last sample is included in the edit
2465 * list duration as well. */
2467 avio_wb64(pb, delay);
2470 avio_wb32(pb, delay);
2473 avio_wb32(pb, 0x00010000);
2475 /* Avoid accidentally ending up with start_ct = -1 which has got a
2476 * special meaning. Normally start_ct should end up positive or zero
2477 * here, but use FFMIN in case dts is a a small positive integer
2478 * rounded to 0 when represented in MOV_TIMESCALE units. */
2479 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2480 start_ct = -FFMIN(start_dts, 0);
2481 /* Note, this delay is calculated from the pts of the first sample,
2482 * ensuring that we don't reduce the duration for cases with
2487 /* For fragmented files, we don't know the full length yet. Setting
2488 * duration to 0 allows us to only specify the offset, including
2489 * the rest of the content (from all future fragments) without specifying
2490 * an explicit duration. */
2491 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2496 avio_wb64(pb, duration);
2497 avio_wb64(pb, start_ct);
2499 avio_wb32(pb, duration);
2500 avio_wb32(pb, start_ct);
2502 avio_wb32(pb, 0x00010000);
2506 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2508 avio_wb32(pb, 20); // size
2509 ffio_wfourcc(pb, "tref");
2510 avio_wb32(pb, 12); // size (subatom)
2511 avio_wl32(pb, track->tref_tag);
2512 avio_wb32(pb, track->tref_id);
2516 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2517 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2519 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2520 ffio_wfourcc(pb, "uuid");
2521 ffio_wfourcc(pb, "USMT");
2522 avio_wb32(pb, 0x21d24fce);
2523 avio_wb32(pb, 0xbb88695c);
2524 avio_wb32(pb, 0xfac9c740);
2525 avio_wb32(pb, 0x1c); // another size here!
2526 ffio_wfourcc(pb, "MTDT");
2527 avio_wb32(pb, 0x00010012);
2528 avio_wb32(pb, 0x0a);
2529 avio_wb32(pb, 0x55c40000);
2535 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2537 AVFormatContext *ctx = track->rtp_ctx;
2538 char buf[1000] = "";
2541 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2542 NULL, NULL, 0, 0, ctx);
2543 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2546 avio_wb32(pb, len + 24);
2547 ffio_wfourcc(pb, "udta");
2548 avio_wb32(pb, len + 16);
2549 ffio_wfourcc(pb, "hnti");
2550 avio_wb32(pb, len + 8);
2551 ffio_wfourcc(pb, "sdp ");
2552 avio_write(pb, buf, len);
2556 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2557 const char *tag, const char *str)
2559 int64_t pos = avio_tell(pb);
2560 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2561 if (!t || !utf8len(t->value))
2564 avio_wb32(pb, 0); /* size */
2565 ffio_wfourcc(pb, tag); /* type */
2566 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2567 return update_size(pb, pos);
2570 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2573 AVIOContext *pb_buf;
2580 ret = avio_open_dyn_buf(&pb_buf);
2584 if (mov->mode & MODE_MP4)
2585 mov_write_track_metadata(pb_buf, st, "name", "title");
2587 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2588 avio_wb32(pb, size + 8);
2589 ffio_wfourcc(pb, "udta");
2590 avio_write(pb, buf, size);
2597 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2598 MOVTrack *track, AVStream *st)
2600 int64_t pos = avio_tell(pb);
2601 int entry_backup = track->entry;
2602 int chunk_backup = track->chunkCount;
2605 /* If we want to have an empty moov, but some samples already have been
2606 * buffered (delay_moov), pretend that no samples have been written yet. */
2607 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
2608 track->chunkCount = track->entry = 0;
2610 avio_wb32(pb, 0); /* size */
2611 ffio_wfourcc(pb, "trak");
2612 mov_write_tkhd_tag(pb, mov, track, st);
2614 av_assert2(mov->use_editlist >= 0);
2616 if (track->start_dts != AV_NOPTS_VALUE) {
2617 if (mov->use_editlist)
2618 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2619 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2620 av_log(mov->fc, AV_LOG_WARNING,
2621 "Not writing any edit list even though one would have been required\n");
2624 if (track->tref_tag)
2625 mov_write_tref_tag(pb, track);
2627 if ((ret = mov_write_mdia_tag(pb, mov, track)) < 0)
2629 if (track->mode == MODE_PSP)
2630 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2631 if (track->tag == MKTAG('r','t','p',' '))
2632 mov_write_udta_sdp(pb, track);
2633 if (track->mode == MODE_MOV) {
2634 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2635 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2636 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2637 mov_write_tapt_tag(pb, track);
2640 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2641 mov_write_tapt_tag(pb, track);
2644 mov_write_track_udta_tag(pb, mov, st);
2645 track->entry = entry_backup;
2646 track->chunkCount = chunk_backup;
2647 return update_size(pb, pos);
2650 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2652 int i, has_audio = 0, has_video = 0;
2653 int64_t pos = avio_tell(pb);
2654 int audio_profile = mov->iods_audio_profile;
2655 int video_profile = mov->iods_video_profile;
2656 for (i = 0; i < mov->nb_streams; i++) {
2657 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2658 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2659 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2662 if (audio_profile < 0)
2663 audio_profile = 0xFF - has_audio;
2664 if (video_profile < 0)
2665 video_profile = 0xFF - has_video;
2666 avio_wb32(pb, 0x0); /* size */
2667 ffio_wfourcc(pb, "iods");
2668 avio_wb32(pb, 0); /* version & flags */
2669 put_descr(pb, 0x10, 7);
2670 avio_wb16(pb, 0x004f);
2673 avio_w8(pb, audio_profile);
2674 avio_w8(pb, video_profile);
2676 return update_size(pb, pos);
2679 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2681 avio_wb32(pb, 0x20); /* size */
2682 ffio_wfourcc(pb, "trex");
2683 avio_wb32(pb, 0); /* version & flags */
2684 avio_wb32(pb, track->track_id); /* track ID */
2685 avio_wb32(pb, 1); /* default sample description index */
2686 avio_wb32(pb, 0); /* default sample duration */
2687 avio_wb32(pb, 0); /* default sample size */
2688 avio_wb32(pb, 0); /* default sample flags */
2692 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2694 int64_t pos = avio_tell(pb);
2696 avio_wb32(pb, 0x0); /* size */
2697 ffio_wfourcc(pb, "mvex");
2698 for (i = 0; i < mov->nb_streams; i++)
2699 mov_write_trex_tag(pb, &mov->tracks[i]);
2700 return update_size(pb, pos);
2703 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2705 int max_track_id = 1, i;
2706 int64_t max_track_len = 0;
2709 for (i = 0; i < mov->nb_streams; i++) {
2710 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2711 int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2713 mov->tracks[i].timescale,
2715 if (max_track_len < max_track_len_temp)
2716 max_track_len = max_track_len_temp;
2717 if (max_track_id < mov->tracks[i].track_id)
2718 max_track_id = mov->tracks[i].track_id;
2721 /* If using delay_moov, make sure the output is the same as if no
2722 * samples had been written yet. */
2723 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2728 version = max_track_len < UINT32_MAX ? 0 : 1;
2729 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
2731 ffio_wfourcc(pb, "mvhd");
2732 avio_w8(pb, version);
2733 avio_wb24(pb, 0); /* flags */
2735 avio_wb64(pb, mov->time);
2736 avio_wb64(pb, mov->time);
2738 avio_wb32(pb, mov->time); /* creation time */
2739 avio_wb32(pb, mov->time); /* modification time */
2741 avio_wb32(pb, MOV_TIMESCALE);
2742 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2744 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2745 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2746 avio_wb16(pb, 0); /* reserved */
2747 avio_wb32(pb, 0); /* reserved */
2748 avio_wb32(pb, 0); /* reserved */
2750 /* Matrix structure */
2751 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2753 avio_wb32(pb, 0); /* reserved (preview time) */
2754 avio_wb32(pb, 0); /* reserved (preview duration) */
2755 avio_wb32(pb, 0); /* reserved (poster time) */
2756 avio_wb32(pb, 0); /* reserved (selection time) */
2757 avio_wb32(pb, 0); /* reserved (selection duration) */
2758 avio_wb32(pb, 0); /* reserved (current time) */
2759 avio_wb32(pb, max_track_id + 1); /* Next track id */
2763 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2766 avio_wb32(pb, 33); /* size */
2767 ffio_wfourcc(pb, "hdlr");
2770 ffio_wfourcc(pb, "mdir");
2771 ffio_wfourcc(pb, "appl");
2778 /* helper function to write a data tag with the specified string as data */
2779 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2782 int size = 16 + strlen(data);
2783 avio_wb32(pb, size); /* size */
2784 ffio_wfourcc(pb, "data");
2787 avio_write(pb, data, strlen(data));
2791 lang = ff_mov_iso639_to_lang("und", 1);
2792 avio_wb16(pb, strlen(data)); /* string length */
2793 avio_wb16(pb, lang);
2794 avio_write(pb, data, strlen(data));
2795 return strlen(data) + 4;
2799 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2800 const char *value, int lang, int long_style)
2803 if (value && value[0]) {
2804 int64_t pos = avio_tell(pb);
2805 avio_wb32(pb, 0); /* size */
2806 ffio_wfourcc(pb, name);
2807 mov_write_string_data_tag(pb, value, lang, long_style);
2808 size = update_size(pb, pos);
2813 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2814 const char *name, const char *tag,
2817 int l, lang = 0, len, len2;
2818 AVDictionaryEntry *t, *t2 = NULL;
2821 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2824 len = strlen(t->key);
2825 snprintf(tag2, sizeof(tag2), "%s-", tag);
2826 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2827 len2 = strlen(t2->key);
2828 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2829 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2834 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2837 /* iTunes bpm number */
2838 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2840 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2841 int size = 0, tmpo = t ? atoi(t->value) : 0;
2844 avio_wb32(pb, size);
2845 ffio_wfourcc(pb, "tmpo");
2846 avio_wb32(pb, size-8); /* size */
2847 ffio_wfourcc(pb, "data");
2848 avio_wb32(pb, 0x15); //type specifier
2850 avio_wb16(pb, tmpo); // data
2855 /* iTunes track or disc number */
2856 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2857 AVFormatContext *s, int disc)
2859 AVDictionaryEntry *t = av_dict_get(s->metadata,
2860 disc ? "disc" : "track",
2862 int size = 0, track = t ? atoi(t->value) : 0;
2865 char *slash = strchr(t->value, '/');
2867 tracks = atoi(slash + 1);
2868 avio_wb32(pb, 32); /* size */
2869 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2870 avio_wb32(pb, 24); /* size */
2871 ffio_wfourcc(pb, "data");
2872 avio_wb32(pb, 0); // 8 bytes empty
2874 avio_wb16(pb, 0); // empty
2875 avio_wb16(pb, track); // track / disc number
2876 avio_wb16(pb, tracks); // total track / disc number
2877 avio_wb16(pb, 0); // empty
2883 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2884 const char *name, const char *tag,
2887 AVDictionaryEntry *t = NULL;
2889 int size = 24 + len;
2891 if (len != 1 && len != 4)
2894 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2896 num = atoi(t->value);
2898 avio_wb32(pb, size);
2899 ffio_wfourcc(pb, name);
2900 avio_wb32(pb, size - 8);
2901 ffio_wfourcc(pb, "data");
2902 avio_wb32(pb, 0x15);
2904 if (len==4) avio_wb32(pb, num);
2905 else avio_w8 (pb, num);
2910 /* iTunes meta data list */
2911 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2914 int64_t pos = avio_tell(pb);
2915 avio_wb32(pb, 0); /* size */
2916 ffio_wfourcc(pb, "ilst");
2917 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2918 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2919 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2920 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2921 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2922 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2923 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2924 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2925 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2927 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2928 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2929 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2930 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2931 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2932 mov_write_string_metadata(s, pb, "desc", "description",1);
2933 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2934 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2935 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2936 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2937 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2938 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2939 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2940 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2941 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2942 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2943 mov_write_trkn_tag(pb, mov, s, 0); // track number
2944 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2945 mov_write_tmpo_tag(pb, s);
2946 return update_size(pb, pos);
2949 /* iTunes meta data tag */
2950 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2954 int64_t pos = avio_tell(pb);
2955 avio_wb32(pb, 0); /* size */
2956 ffio_wfourcc(pb, "meta");
2958 mov_write_itunes_hdlr_tag(pb, mov, s);
2959 mov_write_ilst_tag(pb, mov, s);
2960 size = update_size(pb, pos);
2964 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2965 const char *name, const char *key)
2968 AVDictionaryEntry *t;
2970 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2973 len = strlen(t->value);
2976 avio_wb32(pb, size);
2977 ffio_wfourcc(pb, name);
2978 avio_write(pb, t->value, len);
2984 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2988 GET_UTF8(val, *b++, return -1;)
2991 avio_wb16(pb, 0x00);
2995 static uint16_t language_code(const char *str)
2997 return (((str[0] - 0x60) & 0x1F) << 10) +
2998 (((str[1] - 0x60) & 0x1F) << 5) +
2999 (( str[2] - 0x60) & 0x1F);
3002 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3003 const char *tag, const char *str)
3005 int64_t pos = avio_tell(pb);
3006 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3007 if (!t || !utf8len(t->value))
3009 avio_wb32(pb, 0); /* size */
3010 ffio_wfourcc(pb, tag); /* type */
3011 avio_wb32(pb, 0); /* version + flags */
3012 if (!strcmp(tag, "yrrc"))
3013 avio_wb16(pb, atoi(t->value));
3015 avio_wb16(pb, language_code("eng")); /* language */
3016 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3017 if (!strcmp(tag, "albm") &&
3018 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3019 avio_w8(pb, atoi(t->value));
3021 return update_size(pb, pos);
3024 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3026 int64_t pos = avio_tell(pb);
3027 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3029 avio_wb32(pb, 0); // size
3030 ffio_wfourcc(pb, "chpl");
3031 avio_wb32(pb, 0x01000000); // version + flags
3032 avio_wb32(pb, 0); // unknown
3033 avio_w8(pb, nb_chapters);
3035 for (i = 0; i < nb_chapters; i++) {
3036 AVChapter *c = s->chapters[i];
3037 AVDictionaryEntry *t;
3038 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3040 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3041 int len = FFMIN(strlen(t->value), 255);
3043 avio_write(pb, t->value, len);
3047 return update_size(pb, pos);
3050 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3053 AVIOContext *pb_buf;
3057 ret = avio_open_dyn_buf(&pb_buf);
3061 if (mov->mode & MODE_3GP) {
3062 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3063 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3064 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3065 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3066 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3067 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3068 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3069 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3070 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3071 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3072 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3073 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3074 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3075 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3076 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3077 // currently ignored by mov.c
3078 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3079 // add support for libquicktime, this atom is also actually read by mov.c
3080 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3081 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3082 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3083 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3084 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3085 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3086 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3088 /* iTunes meta data */
3089 mov_write_meta_tag(pb_buf, mov, s);
3092 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3093 mov_write_chpl_tag(pb_buf, s);
3095 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3096 avio_wb32(pb, size + 8);
3097 ffio_wfourcc(pb, "udta");
3098 avio_write(pb, buf, size);
3105 static void mov_write_psp_udta_tag(AVIOContext *pb,
3106 const char *str, const char *lang, int type)
3108 int len = utf8len(str) + 1;
3111 avio_wb16(pb, len * 2 + 10); /* size */
3112 avio_wb32(pb, type); /* type */
3113 avio_wb16(pb, language_code(lang)); /* language */
3114 avio_wb16(pb, 0x01); /* ? */
3115 ascii_to_wc(pb, str);
3118 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3120 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3124 pos = avio_tell(pb);
3125 avio_wb32(pb, 0); /* size placeholder*/
3126 ffio_wfourcc(pb, "uuid");
3127 ffio_wfourcc(pb, "USMT");
3128 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3129 avio_wb32(pb, 0xbb88695c);
3130 avio_wb32(pb, 0xfac9c740);
3132 pos2 = avio_tell(pb);
3133 avio_wb32(pb, 0); /* size placeholder*/
3134 ffio_wfourcc(pb, "MTDT");
3138 avio_wb16(pb, 0x0C); /* size */
3139 avio_wb32(pb, 0x0B); /* type */
3140 avio_wb16(pb, language_code("und")); /* language */
3141 avio_wb16(pb, 0x0); /* ? */
3142 avio_wb16(pb, 0x021C); /* data */
3144 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3145 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3146 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3147 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3149 update_size(pb, pos2);
3150 return update_size(pb, pos);
3156 static void build_chunks(MOVTrack *trk)
3159 MOVIentry *chunk = &trk->cluster[0];
3160 uint64_t chunkSize = chunk->size;
3161 chunk->chunkNum = 1;
3162 if (trk->chunkCount)
3164 trk->chunkCount = 1;
3165 for (i = 1; i<trk->entry; i++){
3166 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3167 chunkSize + trk->cluster[i].size < (1<<20)){
3168 chunkSize += trk->cluster[i].size;
3169 chunk->samples_in_chunk += trk->cluster[i].entries;
3171 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3172 chunk=&trk->cluster[i];
3173 chunkSize = chunk->size;
3179 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
3183 int64_t pos = avio_tell(pb);
3184 avio_wb32(pb, 0); /* size placeholder*/
3185 ffio_wfourcc(pb, "moov");
3187 for (i = 0; i < mov->nb_streams; i++) {
3188 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3191 mov->tracks[i].time = mov->time;
3192 mov->tracks[i].track_id = i + 1;
3194 if (mov->tracks[i].entry)
3195 build_chunks(&mov->tracks[i]);
3198 if (mov->chapter_track)
3199 for (i = 0; i < s->nb_streams; i++) {
3200 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3201 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3203 for (i = 0; i < mov->nb_streams; i++) {
3204 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
3205 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
3206 mov->tracks[i].tref_id =
3207 mov->tracks[mov->tracks[i].src_track].track_id;
3210 for (i = 0; i < mov->nb_streams; i++) {
3211 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3212 int src_trk = mov->tracks[i].src_track;
3213 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3214 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3215 //src_trk may have a different timescale than the tmcd track
3216 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3217 mov->tracks[i].timescale,
3218 mov->tracks[src_trk].timescale);
3222 mov_write_mvhd_tag(pb, mov);
3223 if (mov->mode != MODE_MOV && !mov->iods_skip)
3224 mov_write_iods_tag(pb, mov);
3225 for (i = 0; i < mov->nb_streams; i++) {
3226 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3227 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3232 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3233 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3235 if (mov->mode == MODE_PSP)
3236 mov_write_uuidusmt_tag(pb, s);
3238 mov_write_udta_tag(pb, mov, s);
3240 return update_size(pb, pos);
3243 static void param_write_int(AVIOContext *pb, const char *name, int value)
3245 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3248 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3250 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3253 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3256 len = FFMIN(sizeof(buf) / 2 - 1, len);
3257 ff_data_to_hex(buf, value, len, 0);
3258 buf[2 * len] = '\0';
3259 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3262 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3264 int64_t pos = avio_tell(pb);
3266 static const uint8_t uuid[] = {
3267 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3268 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3272 ffio_wfourcc(pb, "uuid");
3273 avio_write(pb, uuid, sizeof(uuid));
3276 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3277 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3278 avio_printf(pb, "<head>\n");
3279 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3280 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3282 avio_printf(pb, "</head>\n");
3283 avio_printf(pb, "<body>\n");
3284 avio_printf(pb, "<switch>\n");
3285 for (i = 0; i < mov->nb_streams; i++) {
3286 MOVTrack *track = &mov->tracks[i];
3288 /* track->track_id is initialized in write_moov, and thus isn't known
3290 int track_id = i + 1;
3292 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3294 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3299 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3300 track->enc->bit_rate);
3301 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3302 param_write_int(pb, "trackID", track_id);
3303 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3304 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3306 int size = track->enc->extradata_size;
3307 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3309 param_write_hex(pb, "CodecPrivateData",
3310 ptr ? ptr : track->enc->extradata,
3314 param_write_string(pb, "FourCC", "H264");
3315 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3316 param_write_string(pb, "FourCC", "WVC1");
3317 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3318 track->enc->extradata_size);
3320 param_write_int(pb, "MaxWidth", track->enc->width);
3321 param_write_int(pb, "MaxHeight", track->enc->height);
3322 param_write_int(pb, "DisplayWidth", track->enc->width);
3323 param_write_int(pb, "DisplayHeight", track->enc->height);
3325 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3326 param_write_string(pb, "FourCC", "AACL");
3327 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3328 param_write_string(pb, "FourCC", "WMAP");
3330 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3331 track->enc->extradata_size);
3332 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3333 track->enc->codec_id));
3334 param_write_int(pb, "Channels", track->enc->channels);
3335 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3336 param_write_int(pb, "BitsPerSample", 16);
3337 param_write_int(pb, "PacketSize", track->enc->block_align ?
3338 track->enc->block_align : 4);
3340 avio_printf(pb, "</%s>\n", type);
3342 avio_printf(pb, "</switch>\n");
3343 avio_printf(pb, "</body>\n");
3344 avio_printf(pb, "</smil>\n");
3346 return update_size(pb, pos);
3349 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3352 ffio_wfourcc(pb, "mfhd");
3354 avio_wb32(pb, mov->fragments);
3358 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3360 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3361 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3364 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3365 MOVTrack *track, int64_t moof_offset)
3367 int64_t pos = avio_tell(pb);
3368 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3369 MOV_TFHD_BASE_DATA_OFFSET;
3370 if (!track->entry) {
3371 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3373 flags |= MOV_TFHD_DEFAULT_FLAGS;
3375 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3376 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3377 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3378 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3379 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3382 /* Don't set a default sample size, the silverlight player refuses
3383 * to play files with that set. Don't set a default sample duration,
3384 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3385 * file format says it MUST NOT be set. */
3386 if (track->mode == MODE_ISM)
3387 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3388 MOV_TFHD_BASE_DATA_OFFSET);
3390 avio_wb32(pb, 0); /* size placeholder */
3391 ffio_wfourcc(pb, "tfhd");
3392 avio_w8(pb, 0); /* version */
3393 avio_wb24(pb, flags);
3395 avio_wb32(pb, track->track_id); /* track-id */
3396 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3397 avio_wb64(pb, moof_offset);
3398 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3399 track->default_duration = get_cluster_duration(track, 0);
3400 avio_wb32(pb, track->default_duration);
3402 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3403 track->default_size = track->entry ? track->cluster[0].size : 1;
3404 avio_wb32(pb, track->default_size);
3406 track->default_size = -1;
3408 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3409 /* Set the default flags based on the second sample, if available.
3410 * If the first sample is different, that can be signaled via a separate field. */
3411 if (track->entry > 1)
3412 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3414 track->default_sample_flags =
3415 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3416 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3417 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3418 avio_wb32(pb, track->default_sample_flags);
3421 return update_size(pb, pos);
3424 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3425 MOVTrack *track, int moof_size,
3428 int64_t pos = avio_tell(pb);
3429 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3432 for (i = first; i < end; i++) {
3433 if (get_cluster_duration(track, i) != track->default_duration)
3434 flags |= MOV_TRUN_SAMPLE_DURATION;
3435 if (track->cluster[i].size != track->default_size)
3436 flags |= MOV_TRUN_SAMPLE_SIZE;
3437 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3438 flags |= MOV_TRUN_SAMPLE_FLAGS;
3440 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3441 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3442 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3443 if (track->flags & MOV_TRACK_CTTS)
3444 flags |= MOV_TRUN_SAMPLE_CTS;
3446 avio_wb32(pb, 0); /* size placeholder */
3447 ffio_wfourcc(pb, "trun");
3448 avio_w8(pb, 0); /* version */
3449 avio_wb24(pb, flags);
3451 avio_wb32(pb, end - first); /* sample count */
3452 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3453 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3455 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3457 avio_wb32(pb, moof_size + 8 + track->data_offset +
3458 track->cluster[first].pos); /* data offset */
3459 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3460 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3462 for (i = first; i < end; i++) {
3463 if (flags & MOV_TRUN_SAMPLE_DURATION)
3464 avio_wb32(pb, get_cluster_duration(track, i));
3465 if (flags & MOV_TRUN_SAMPLE_SIZE)
3466 avio_wb32(pb, track->cluster[i].size);
3467 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3468 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3469 if (flags & MOV_TRUN_SAMPLE_CTS)
3470 avio_wb32(pb, track->cluster[i].cts);
3473 mov->first_trun = 0;
3474 return update_size(pb, pos);
3477 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3479 int64_t pos = avio_tell(pb);
3480 static const uint8_t uuid[] = {
3481 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3482 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3485 avio_wb32(pb, 0); /* size placeholder */
3486 ffio_wfourcc(pb, "uuid");
3487 avio_write(pb, uuid, sizeof(uuid));
3490 avio_wb64(pb, track->start_dts + track->frag_start +
3491 track->cluster[0].cts);
3492 avio_wb64(pb, track->end_pts -
3493 (track->cluster[0].dts + track->cluster[0].cts));
3495 return update_size(pb, pos);
3498 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3499 MOVTrack *track, int entry)
3501 int n = track->nb_frag_info - 1 - entry, i;
3502 int size = 8 + 16 + 4 + 1 + 16*n;
3503 static const uint8_t uuid[] = {
3504 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3505 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3511 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3512 avio_wb32(pb, size);
3513 ffio_wfourcc(pb, "uuid");
3514 avio_write(pb, uuid, sizeof(uuid));
3518 for (i = 0; i < n; i++) {
3519 int index = entry + 1 + i;
3520 avio_wb64(pb, track->frag_info[index].time);
3521 avio_wb64(pb, track->frag_info[index].duration);
3523 if (n < mov->ism_lookahead) {
3524 int free_size = 16 * (mov->ism_lookahead - n);
3525 avio_wb32(pb, free_size);
3526 ffio_wfourcc(pb, "free");
3527 ffio_fill(pb, 0, free_size - 8);
3533 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3536 int64_t pos = avio_tell(pb);
3538 for (i = 0; i < mov->ism_lookahead; i++) {
3539 /* Update the tfrf tag for the last ism_lookahead fragments,
3540 * nb_frag_info - 1 is the next fragment to be written. */
3541 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3543 avio_seek(pb, pos, SEEK_SET);
3547 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3551 for (i = 0; i < mov->nb_streams; i++) {
3552 MOVTrack *track = &mov->tracks[i];
3553 MOVFragmentInfo *info;
3554 if ((tracks >= 0 && i != tracks) || !track->entry)
3556 track->nb_frag_info++;
3557 if (track->nb_frag_info >= track->frag_info_capacity) {
3558 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3559 if (av_reallocp_array(&track->frag_info,
3561 sizeof(*track->frag_info)))
3562 return AVERROR(ENOMEM);
3563 track->frag_info_capacity = new_capacity;
3565 info = &track->frag_info[track->nb_frag_info - 1];
3566 info->offset = avio_tell(pb);
3568 // Try to recreate the original pts for the first packet
3569 // from the fields we have stored
3570 info->time = track->start_dts + track->frag_start +
3571 track->cluster[0].cts;
3572 info->duration = track->end_pts -
3573 (track->cluster[0].dts + track->cluster[0].cts);
3574 // If the pts is less than zero, we will have trimmed
3575 // away parts of the media track using an edit list,
3576 // and the corresponding start presentation time is zero.
3577 if (info->time < 0) {
3578 info->duration += info->time;
3581 info->tfrf_offset = 0;
3582 mov_write_tfrf_tags(pb, mov, track);
3587 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3589 int64_t pos = avio_tell(pb);
3591 avio_wb32(pb, 0); /* size */
3592 ffio_wfourcc(pb, "tfdt");
3593 avio_w8(pb, 1); /* version */
3595 avio_wb64(pb, track->frag_start);
3596 return update_size(pb, pos);
3599 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3600 MOVTrack *track, int64_t moof_offset,
3603 int64_t pos = avio_tell(pb);
3605 avio_wb32(pb, 0); /* size placeholder */
3606 ffio_wfourcc(pb, "traf");
3608 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3609 if (mov->mode != MODE_ISM)
3610 mov_write_tfdt_tag(pb, track);
3611 for (i = 1; i < track->entry; i++) {
3612 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3613 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3617 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3618 if (mov->mode == MODE_ISM) {
3619 mov_write_tfxd_tag(pb, track);
3621 if (mov->ism_lookahead) {
3622 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3624 if (track->nb_frag_info > 0) {
3625 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3626 if (!info->tfrf_offset)
3627 info->tfrf_offset = avio_tell(pb);
3629 avio_wb32(pb, 8 + size);
3630 ffio_wfourcc(pb, "free");
3631 for (i = 0; i < size; i++)
3636 return update_size(pb, pos);
3639 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3640 int tracks, int moof_size)
3642 int64_t pos = avio_tell(pb);
3645 avio_wb32(pb, 0); /* size placeholder */
3646 ffio_wfourcc(pb, "moof");
3647 mov->first_trun = 1;
3649 mov_write_mfhd_tag(pb, mov);
3650 for (i = 0; i < mov->nb_streams; i++) {
3651 MOVTrack *track = &mov->tracks[i];
3652 if (tracks >= 0 && i != tracks)
3656 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3659 return update_size(pb, pos);
3662 static int mov_write_sidx_tag(AVIOContext *pb,
3663 MOVTrack *track, int ref_size, int total_sidx_size)
3665 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3666 int64_t presentation_time, duration, offset;
3667 int starts_with_SAP, i, entries;
3671 presentation_time = track->start_dts + track->frag_start +
3672 track->cluster[0].cts;
3673 duration = track->end_pts -
3674 (track->cluster[0].dts + track->cluster[0].cts);
3675 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3677 // pts<0 should be cut away using edts
3678 if (presentation_time < 0) {
3679 duration += presentation_time;
3680 presentation_time = 0;
3683 entries = track->nb_frag_info;
3686 presentation_time = track->frag_info[0].time;
3689 avio_wb32(pb, 0); /* size */
3690 ffio_wfourcc(pb, "sidx");
3691 avio_w8(pb, 1); /* version */
3693 avio_wb32(pb, track->track_id); /* reference_ID */
3694 avio_wb32(pb, track->timescale); /* timescale */
3695 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3696 offset_pos = avio_tell(pb);
3697 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3698 avio_wb16(pb, 0); /* reserved */
3700 avio_wb16(pb, entries); /* reference_count */
3701 for (i = 0; i < entries; i++) {
3702 if (!track->entry) {
3703 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3704 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3706 duration = track->frag_info[i].duration;
3707 ref_size = track->frag_info[i].size;
3708 starts_with_SAP = 1;
3710 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3711 avio_wb32(pb, duration); /* subsegment_duration */
3712 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3715 end_pos = avio_tell(pb);
3716 offset = pos + total_sidx_size - end_pos;
3717 avio_seek(pb, offset_pos, SEEK_SET);
3718 avio_wb64(pb, offset);
3719 avio_seek(pb, end_pos, SEEK_SET);
3720 return update_size(pb, pos);
3723 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3724 int tracks, int ref_size)
3727 AVIOContext *avio_buf;
3729 for (round = 0; round < 2; round++) {
3730 // First run one round to calculate the total size of all
3732 // This would be much simpler if we'd only write one sidx
3733 // atom, for the first track in the moof.
3735 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3740 for (i = 0; i < mov->nb_streams; i++) {
3741 MOVTrack *track = &mov->tracks[i];
3742 if (tracks >= 0 && i != tracks)
3744 // When writing a sidx for the full file, entry is 0, but
3745 // we want to include all tracks. ref_size is 0 in this case,
3746 // since we read it from frag_info instead.
3747 if (!track->entry && ref_size > 0)
3749 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3753 total_size = ffio_close_null_buf(avio_buf);
3758 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3761 AVIOContext *avio_buf;
3764 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3766 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3767 moof_size = ffio_close_null_buf(avio_buf);
3769 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3770 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3772 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3775 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3778 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3780 int64_t pos = avio_tell(pb);
3783 avio_wb32(pb, 0); /* size placeholder */
3784 ffio_wfourcc(pb, "tfra");
3785 avio_w8(pb, 1); /* version */
3788 avio_wb32(pb, track->track_id);
3789 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3790 avio_wb32(pb, track->nb_frag_info);
3791 for (i = 0; i < track->nb_frag_info; i++) {
3792 avio_wb64(pb, track->frag_info[i].time);
3793 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3794 avio_w8(pb, 1); /* traf number */
3795 avio_w8(pb, 1); /* trun number */
3796 avio_w8(pb, 1); /* sample number */
3799 return update_size(pb, pos);
3802 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3804 int64_t pos = avio_tell(pb);
3807 avio_wb32(pb, 0); /* size placeholder */
3808 ffio_wfourcc(pb, "mfra");
3809 /* An empty mfra atom is enough to indicate to the publishing point that
3810 * the stream has ended. */
3811 if (mov->flags & FF_MOV_FLAG_ISML)
3812 return update_size(pb, pos);
3814 for (i = 0; i < mov->nb_streams; i++) {
3815 MOVTrack *track = &mov->tracks[i];
3816 if (track->nb_frag_info)
3817 mov_write_tfra_tag(pb, track);
3821 ffio_wfourcc(pb, "mfro");
3822 avio_wb32(pb, 0); /* version + flags */
3823 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3825 return update_size(pb, pos);
3828 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3830 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3831 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3833 mov->mdat_pos = avio_tell(pb);
3834 avio_wb32(pb, 0); /* size placeholder*/
3835 ffio_wfourcc(pb, "mdat");
3839 /* TODO: This needs to be more general */
3840 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3842 MOVMuxContext *mov = s->priv_data;
3843 int64_t pos = avio_tell(pb);
3844 int has_h264 = 0, has_video = 0;
3848 for (i = 0; i < s->nb_streams; i++) {
3849 AVStream *st = s->streams[i];
3850 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3852 if (st->codec->codec_id == AV_CODEC_ID_H264)
3856 avio_wb32(pb, 0); /* size */
3857 ffio_wfourcc(pb, "ftyp");
3859 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3860 ffio_wfourcc(pb, mov->major_brand);
3861 else if (mov->mode == MODE_3GP) {
3862 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3863 minor = has_h264 ? 0x100 : 0x200;
3864 } else if (mov->mode & MODE_3G2) {
3865 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3866 minor = has_h264 ? 0x20000 : 0x10000;
3867 } else if (mov->mode == MODE_PSP)
3868 ffio_wfourcc(pb, "MSNV");
3869 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3870 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3871 else if (mov->mode == MODE_MP4)
3872 ffio_wfourcc(pb, "isom");
3873 else if (mov->mode == MODE_IPOD)
3874 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3875 else if (mov->mode == MODE_ISM)
3876 ffio_wfourcc(pb, "isml");
3877 else if (mov->mode == MODE_F4V)
3878 ffio_wfourcc(pb, "f4v ");
3880 ffio_wfourcc(pb, "qt ");
3882 avio_wb32(pb, minor);
3884 if (mov->mode == MODE_MOV)
3885 ffio_wfourcc(pb, "qt ");
3886 else if (mov->mode == MODE_ISM) {
3887 ffio_wfourcc(pb, "piff");
3888 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3889 ffio_wfourcc(pb, "isom");
3890 ffio_wfourcc(pb, "iso2");
3892 ffio_wfourcc(pb, "avc1");
3895 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3896 // brand. This is compatible with users that don't understand tfdt.
3897 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3898 ffio_wfourcc(pb, "iso6");
3900 if (mov->mode == MODE_3GP)
3901 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3902 else if (mov->mode & MODE_3G2)
3903 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3904 else if (mov->mode == MODE_PSP)
3905 ffio_wfourcc(pb, "MSNV");
3906 else if (mov->mode == MODE_MP4)
3907 ffio_wfourcc(pb, "mp41");
3909 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3910 ffio_wfourcc(pb, "dash");
3912 return update_size(pb, pos);
3915 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3917 AVStream *video_st = s->streams[0];
3918 AVCodecContext *video_codec = s->streams[0]->codec;
3919 AVCodecContext *audio_codec = s->streams[1]->codec;
3920 int audio_rate = audio_codec->sample_rate;
3921 // TODO: should be avg_frame_rate
3922 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3923 int audio_kbitrate = audio_codec->bit_rate / 1000;
3924 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3926 avio_wb32(pb, 0x94); /* size */
3927 ffio_wfourcc(pb, "uuid");
3928 ffio_wfourcc(pb, "PROF");
3930 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3931 avio_wb32(pb, 0xbb88695c);
3932 avio_wb32(pb, 0xfac9c740);
3934 avio_wb32(pb, 0x0); /* ? */
3935 avio_wb32(pb, 0x3); /* 3 sections ? */
3937 avio_wb32(pb, 0x14); /* size */
3938 ffio_wfourcc(pb, "FPRF");
3939 avio_wb32(pb, 0x0); /* ? */
3940 avio_wb32(pb, 0x0); /* ? */
3941 avio_wb32(pb, 0x0); /* ? */
3943 avio_wb32(pb, 0x2c); /* size */
3944 ffio_wfourcc(pb, "APRF"); /* audio */
3946 avio_wb32(pb, 0x2); /* TrackID */
3947 ffio_wfourcc(pb, "mp4a");
3948 avio_wb32(pb, 0x20f);
3950 avio_wb32(pb, audio_kbitrate);
3951 avio_wb32(pb, audio_kbitrate);
3952 avio_wb32(pb, audio_rate);
3953 avio_wb32(pb, audio_codec->channels);
3955 avio_wb32(pb, 0x34); /* size */
3956 ffio_wfourcc(pb, "VPRF"); /* video */
3958 avio_wb32(pb, 0x1); /* TrackID */
3959 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3960 ffio_wfourcc(pb, "avc1");
3961 avio_wb16(pb, 0x014D);
3962 avio_wb16(pb, 0x0015);
3964 ffio_wfourcc(pb, "mp4v");
3965 avio_wb16(pb, 0x0000);
3966 avio_wb16(pb, 0x0103);
3969 avio_wb32(pb, video_kbitrate);
3970 avio_wb32(pb, video_kbitrate);
3971 avio_wb32(pb, frame_rate);
3972 avio_wb32(pb, frame_rate);
3973 avio_wb16(pb, video_codec->width);
3974 avio_wb16(pb, video_codec->height);
3975 avio_wb32(pb, 0x010001); /* ? */
3978 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3980 MOVMuxContext *mov = s->priv_data;
3983 mov_write_ftyp_tag(pb,s);
3984 if (mov->mode == MODE_PSP) {
3985 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3986 for (i = 0; i < s->nb_streams; i++) {
3987 AVStream *st = s->streams[i];
3988 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3990 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3996 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3997 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3998 return AVERROR(EINVAL);
4000 mov_write_uuidprof_tag(pb, s);
4005 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4008 int i, closed_gop = 0;
4010 for (i = 0; i < pkt->size - 4; i++) {
4011 c = (c << 8) + pkt->data[i];
4012 if (c == 0x1b8) { // gop
4013 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4014 } else if (c == 0x100) { // pic
4015 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4016 if (!temp_ref || closed_gop) // I picture is not reordered
4017 *flags = MOV_SYNC_SAMPLE;
4019 *flags = MOV_PARTIAL_SYNC_SAMPLE;
4026 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4028 const uint8_t *start, *next, *end = pkt->data + pkt->size;
4029 int seq = 0, entry = 0;
4030 int key = pkt->flags & AV_PKT_FLAG_KEY;
4031 start = find_next_marker(pkt->data, end);
4032 for (next = start; next < end; start = next) {
4033 next = find_next_marker(start + 4, end);
4034 switch (AV_RB32(start)) {
4035 case VC1_CODE_SEQHDR:
4038 case VC1_CODE_ENTRYPOINT:
4041 case VC1_CODE_SLICE:
4042 trk->vc1_info.slices = 1;
4046 if (!trk->entry && trk->vc1_info.first_packet_seen)
4047 trk->vc1_info.first_frag_written = 1;
4048 if (!trk->entry && !trk->vc1_info.first_frag_written) {
4049 /* First packet in first fragment */
4050 trk->vc1_info.first_packet_seq = seq;
4051 trk->vc1_info.first_packet_entry = entry;
4052 trk->vc1_info.first_packet_seen = 1;
4053 } else if ((seq && !trk->vc1_info.packet_seq) ||
4054 (entry && !trk->vc1_info.packet_entry)) {
4056 for (i = 0; i < trk->entry; i++)
4057 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4058 trk->has_keyframes = 0;
4060 trk->vc1_info.packet_seq = 1;
4062 trk->vc1_info.packet_entry = 1;
4063 if (!trk->vc1_info.first_frag_written) {
4064 /* First fragment */
4065 if ((!seq || trk->vc1_info.first_packet_seq) &&
4066 (!entry || trk->vc1_info.first_packet_entry)) {
4067 /* First packet had the same headers as this one, readd the
4068 * sync sample flag. */
4069 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4070 trk->has_keyframes = 1;
4074 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4076 else if (trk->vc1_info.packet_seq)
4078 else if (trk->vc1_info.packet_entry)
4081 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4082 trk->has_keyframes++;
4086 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4088 MOVMuxContext *mov = s->priv_data;
4093 if (!track->mdat_buf)
4095 if (!mov->mdat_buf) {
4096 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4099 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4100 track->mdat_buf = NULL;
4102 offset = avio_tell(mov->mdat_buf);
4103 avio_write(mov->mdat_buf, buf, buf_size);
4106 for (i = track->entries_flushed; i < track->entry; i++)
4107 track->cluster[i].pos += offset;
4108 track->entries_flushed = track->entry;
4112 static int mov_flush_fragment(AVFormatContext *s)
4114 MOVMuxContext *mov = s->priv_data;
4115 int i, first_track = -1;
4116 int64_t mdat_size = 0;
4119 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4122 for (i = 0; i < mov->nb_streams; i++) {
4123 MOVTrack *track = &mov->tracks[i];
4124 if (track->entry <= 1)
4126 // Sample durations are calculated as the diff of dts values,
4127 // but for the last sample in a fragment, we don't know the dts
4128 // of the first sample in the next fragment, so we have to rely
4129 // on what was set as duration in the AVPacket. Not all callers
4130 // set this though, so we might want to replace it with an
4131 // estimate if it currently is zero.
4132 if (get_cluster_duration(track, track->entry - 1) != 0)
4134 // Use the duration (i.e. dts diff) of the second last sample for
4135 // the last one. This is a wild guess (and fatal if it turns out
4136 // to be too long), but probably the best we can do - having a zero
4137 // duration is bad as well.
4138 track->track_duration += get_cluster_duration(track, track->entry - 2);
4139 track->end_pts += get_cluster_duration(track, track->entry - 2);
4140 if (!mov->missing_duration_warned) {
4141 av_log(s, AV_LOG_WARNING,
4142 "Estimating the duration of the last packet in a "
4143 "fragment, consider setting the duration field in "
4144 "AVPacket instead.\n");
4145 mov->missing_duration_warned = 1;
4149 if (!mov->moov_written) {
4150 int64_t pos = avio_tell(s->pb);
4152 int buf_size, moov_size;
4154 for (i = 0; i < mov->nb_streams; i++)
4155 if (!mov->tracks[i].entry)
4157 /* Don't write the initial moov unless all tracks have data */
4158 if (i < mov->nb_streams)
4161 moov_size = get_moov_size(s);
4162 for (i = 0; i < mov->nb_streams; i++)
4163 mov->tracks[i].data_offset = pos + moov_size + 8;
4165 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4166 mov_write_identification(s->pb, s);
4167 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4170 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4171 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4172 mov->reserved_header_pos = avio_tell(s->pb);
4174 mov->moov_written = 1;
4178 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4179 mov->mdat_buf = NULL;
4180 avio_wb32(s->pb, buf_size + 8);
4181 ffio_wfourcc(s->pb, "mdat");
4182 avio_write(s->pb, buf, buf_size);
4185 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4186 mov->reserved_header_pos = avio_tell(s->pb);
4188 mov->moov_written = 1;
4190 for (i = 0; i < mov->nb_streams; i++) {
4191 if (mov->tracks[i].entry)
4192 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4193 mov->tracks[i].track_duration -
4194 mov->tracks[i].cluster[0].dts;
4195 mov->tracks[i].entry = 0;
4201 if (mov->frag_interleave) {
4202 for (i = 0; i < mov->nb_streams; i++) {
4203 MOVTrack *track = &mov->tracks[i];
4205 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4211 mdat_size = avio_tell(mov->mdat_buf);
4214 for (i = 0; i < mov->nb_streams; i++) {
4215 MOVTrack *track = &mov->tracks[i];
4216 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4217 track->data_offset = 0;
4219 track->data_offset = mdat_size;
4222 if (track->mdat_buf)
4223 mdat_size += avio_tell(track->mdat_buf);
4224 if (first_track < 0)
4231 for (i = 0; i < mov->nb_streams; i++) {
4232 MOVTrack *track = &mov->tracks[i];
4233 int buf_size, write_moof = 1, moof_tracks = -1;
4235 int64_t duration = 0;
4238 duration = track->start_dts + track->track_duration -
4239 track->cluster[0].dts;
4240 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4241 if (!track->mdat_buf)
4243 mdat_size = avio_tell(track->mdat_buf);
4246 write_moof = i == first_track;
4252 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4255 avio_wb32(s->pb, mdat_size + 8);
4256 ffio_wfourcc(s->pb, "mdat");
4260 track->frag_start += duration;
4262 track->entries_flushed = 0;
4263 if (!mov->frag_interleave) {
4264 if (!track->mdat_buf)
4266 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4267 track->mdat_buf = NULL;
4271 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4272 mov->mdat_buf = NULL;
4275 avio_write(s->pb, buf, buf_size);
4285 static int mov_auto_flush_fragment(AVFormatContext *s)
4287 MOVMuxContext *mov = s->priv_data;
4288 int had_moov = mov->moov_written;
4289 int ret = mov_flush_fragment(s);
4292 // If using delay_moov, the first flush only wrote the moov,
4293 // not the actual moof+mdat pair, thus flush once again.
4294 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4295 ret = mov_flush_fragment(s);
4299 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4301 MOVMuxContext *mov = s->priv_data;
4302 AVIOContext *pb = s->pb;
4303 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4304 AVCodecContext *enc = trk->enc;
4305 unsigned int samples_in_chunk = 0;
4306 int size = pkt->size, ret = 0;
4307 uint8_t *reformatted_data = NULL;
4310 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4311 if (duration < 0 || duration > INT_MAX) {
4312 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4316 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4317 pkt->pts = AV_NOPTS_VALUE;
4319 if (pkt->duration < 0) {
4320 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
4321 return AVERROR(EINVAL);
4324 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4326 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4327 if (mov->frag_interleave && mov->fragments > 0) {
4328 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4329 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4334 if (!trk->mdat_buf) {
4335 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4340 if (!mov->mdat_buf) {
4341 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4348 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4349 /* We must find out how many AMR blocks there are in one packet */
4350 static const uint16_t packed_size[16] =
4351 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4354 while (len < size && samples_in_chunk < 100) {
4355 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4358 if (samples_in_chunk > 1) {
4359 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4362 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4363 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4364 samples_in_chunk = enc->frame_size;
4365 } else if (trk->sample_size)
4366 samples_in_chunk = size / trk->sample_size;
4368 samples_in_chunk = 1;
4370 /* copy extradata if it exists */
4371 if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4372 !TAG_IS_AVCI(trk->tag) &&
4373 (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4374 trk->vos_len = enc->extradata_size;
4375 trk->vos_data = av_malloc(trk->vos_len);
4376 if (!trk->vos_data) {
4377 ret = AVERROR(ENOMEM);
4380 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4383 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4384 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4385 if (!s->streams[pkt->stream_index]->nb_frames) {
4386 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4387 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4388 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4391 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4393 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4394 /* from x264 or from bytestream h264 */
4395 /* nal reformating needed */
4396 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4397 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4399 avio_write(pb, reformatted_data, size);
4401 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4403 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4404 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4405 /* extradata is Annex B, assume the bitstream is too and convert it */
4406 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4407 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4408 avio_write(pb, reformatted_data, size);
4410 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4412 #if CONFIG_AC3_PARSER
4413 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4414 size = handle_eac3(mov, pkt, trk);
4419 avio_write(pb, pkt->data, size);
4422 avio_write(pb, pkt->data, size);
4425 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4426 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4427 /* copy frame to create needed atoms */
4428 trk->vos_len = size;
4429 trk->vos_data = av_malloc(size);
4430 if (!trk->vos_data) {
4431 ret = AVERROR(ENOMEM);
4434 memcpy(trk->vos_data, pkt->data, size);
4437 if (trk->entry >= trk->cluster_capacity) {
4438 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4439 if (av_reallocp_array(&trk->cluster, new_capacity,
4440 sizeof(*trk->cluster))) {
4441 ret = AVERROR(ENOMEM);
4444 trk->cluster_capacity = new_capacity;
4447 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4448 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4449 trk->cluster[trk->entry].chunkNum = 0;
4450 trk->cluster[trk->entry].size = size;
4451 trk->cluster[trk->entry].entries = samples_in_chunk;
4452 trk->cluster[trk->entry].dts = pkt->dts;
4453 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4454 if (!trk->frag_discont) {
4455 /* First packet of a new fragment. We already wrote the duration
4456 * of the last packet of the previous fragment based on track_duration,
4457 * which might not exactly match our dts. Therefore adjust the dts
4458 * of this packet to be what the previous packets duration implies. */
4459 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4460 /* We also may have written the pts and the corresponding duration
4461 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
4462 * the next fragment. This means the cts of the first sample must
4463 * be the same in all fragments. */
4464 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
4465 mov->mode == MODE_ISM)
4466 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
4468 /* New fragment, but discontinuous from previous fragments.
4469 * Pretend the duration sum of the earlier fragments is
4470 * pkt->dts - trk->start_dts. */
4471 trk->frag_start = pkt->dts - trk->start_dts;
4472 trk->end_pts = AV_NOPTS_VALUE;
4473 trk->frag_discont = 0;
4477 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4478 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4479 /* Not using edit lists and shifting the first track to start from zero.
4480 * If the other streams start from a later timestamp, we won't be able
4481 * to signal the difference in starting time without an edit list.
4482 * Thus move the timestamp for this first sample to 0, increasing
4483 * its duration instead. */
4484 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4486 if (trk->start_dts == AV_NOPTS_VALUE) {
4487 trk->start_dts = pkt->dts;
4488 if (trk->frag_discont) {
4489 /* Pretend the whole stream started at dts=0, with earlier fragments
4490 * already written, with a duration summing up to pkt->dts. */
4491 trk->frag_start = pkt->dts;
4493 trk->frag_discont = 0;
4494 } else if (pkt->dts && mov->moov_written)
4495 av_log(s, AV_LOG_WARNING,
4496 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4497 "already has been written. Set the delay_moov flag to handle "
4499 pkt->stream_index, pkt->dts);
4501 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4502 trk->last_sample_is_subtitle_end = 0;
4504 if (pkt->pts == AV_NOPTS_VALUE) {
4505 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4506 pkt->pts = pkt->dts;
4508 if (pkt->dts != pkt->pts)
4509 trk->flags |= MOV_TRACK_CTTS;
4510 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4511 trk->cluster[trk->entry].flags = 0;
4512 if (trk->start_cts == AV_NOPTS_VALUE)
4513 trk->start_cts = pkt->pts - pkt->dts;
4514 if (trk->end_pts == AV_NOPTS_VALUE)
4515 trk->end_pts = trk->cluster[trk->entry].dts +
4516 trk->cluster[trk->entry].cts + pkt->duration;
4518 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
4519 trk->cluster[trk->entry].cts +
4522 if (enc->codec_id == AV_CODEC_ID_VC1) {
4523 mov_parse_vc1_frame(pkt, trk);
4524 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4525 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4526 trk->entry > 0) { // force sync sample for the first key frame
4527 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4528 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4529 trk->flags |= MOV_TRACK_STPS;
4531 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4533 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4534 trk->has_keyframes++;
4537 trk->sample_count += samples_in_chunk;
4538 mov->mdat_size += size;
4540 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4541 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4542 reformatted_data, size);
4547 av_free(reformatted_data);
4551 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4553 MOVMuxContext *mov = s->priv_data;
4554 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4555 AVCodecContext *enc = trk->enc;
4556 int64_t frag_duration = 0;
4557 int size = pkt->size;
4560 return 0; /* Discard 0 sized packets */
4562 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4564 for (i = 0; i < s->nb_streams; i++)
4565 mov->tracks[i].frag_discont = 1;
4566 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4569 if (trk->entry && pkt->stream_index < s->nb_streams)
4570 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4571 s->streams[pkt->stream_index]->time_base,
4573 if ((mov->max_fragment_duration &&
4574 frag_duration >= mov->max_fragment_duration) ||
4575 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4576 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4577 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4578 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4579 if (frag_duration >= mov->min_fragment_duration) {
4580 // Set the duration of this track to line up with the next
4581 // sample in this track. This avoids relying on AVPacket
4582 // duration, but only helps for this particular track, not
4583 // for the other ones that are flushed at the same time.
4584 trk->track_duration = pkt->dts - trk->start_dts;
4585 trk->end_pts = pkt->pts;
4586 mov_auto_flush_fragment(s);
4590 return ff_mov_write_packet(s, pkt);
4593 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4597 uint8_t data[2] = {0};
4600 av_init_packet(&end);
4601 end.size = sizeof(data);
4606 end.stream_index = stream_index;
4608 ret = mov_write_single_packet(s, &end);
4609 av_free_packet(&end);
4614 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4617 mov_flush_fragment(s);
4621 MOVMuxContext *mov = s->priv_data;
4623 if (!pkt->size) return 0; /* Discard 0 sized packets */
4626 * Subtitles require special handling.
4628 * 1) For full complaince, every track must have a sample at
4629 * dts == 0, which is rarely true for subtitles. So, as soon
4630 * as we see any packet with dts > 0, write an empty subtitle
4631 * at dts == 0 for any subtitle track with no samples in it.
4633 * 2) For each subtitle track, check if the current packet's
4634 * dts is past the duration of the last subtitle sample. If
4635 * so, we now need to write an end sample for that subtitle.
4637 * This must be done conditionally to allow for subtitles that
4638 * immediately replace each other, in which case an end sample
4639 * is not needed, and is, in fact, actively harmful.
4641 * 3) See mov_write_trailer for how the final end sample is
4644 for (i = 0; i < mov->nb_streams; i++) {
4645 MOVTrack *trk = &mov->tracks[i];
4648 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4649 trk->track_duration < pkt->dts &&
4650 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4651 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4652 if (ret < 0) return ret;
4653 trk->last_sample_is_subtitle_end = 1;
4657 return mov_write_single_packet(s, pkt);
4661 // QuickTime chapters involve an additional text track with the chapter names
4662 // as samples, and a tref pointing from the other tracks to the chapter one.
4663 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4667 MOVMuxContext *mov = s->priv_data;
4668 MOVTrack *track = &mov->tracks[tracknum];
4669 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4672 track->mode = mov->mode;
4673 track->tag = MKTAG('t','e','x','t');
4674 track->timescale = MOV_TIMESCALE;
4675 track->enc = avcodec_alloc_context3(NULL);
4677 return AVERROR(ENOMEM);
4678 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4680 // These properties are required to make QT recognize the chapter track
4681 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4682 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4683 return AVERROR(ENOMEM);
4684 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4686 if (avio_open_dyn_buf(&pb) >= 0) {
4690 /* Stub header (usually for Quicktime chapter track) */
4692 avio_wb32(pb, 0x01); // displayFlags
4693 avio_w8(pb, 0x00); // horizontal justification
4694 avio_w8(pb, 0x00); // vertical justification
4695 avio_w8(pb, 0x00); // bgColourRed
4696 avio_w8(pb, 0x00); // bgColourGreen
4697 avio_w8(pb, 0x00); // bgColourBlue
4698 avio_w8(pb, 0x00); // bgColourAlpha
4700 avio_wb16(pb, 0x00); // defTextBoxTop
4701 avio_wb16(pb, 0x00); // defTextBoxLeft
4702 avio_wb16(pb, 0x00); // defTextBoxBottom
4703 avio_wb16(pb, 0x00); // defTextBoxRight
4705 avio_wb16(pb, 0x00); // startChar
4706 avio_wb16(pb, 0x00); // endChar
4707 avio_wb16(pb, 0x01); // fontID
4708 avio_w8(pb, 0x00); // fontStyleFlags
4709 avio_w8(pb, 0x00); // fontSize
4710 avio_w8(pb, 0x00); // fgColourRed
4711 avio_w8(pb, 0x00); // fgColourGreen
4712 avio_w8(pb, 0x00); // fgColourBlue
4713 avio_w8(pb, 0x00); // fgColourAlpha
4715 avio_wb32(pb, 0x0D); // box size
4716 ffio_wfourcc(pb, "ftab"); // box atom name
4717 avio_wb16(pb, 0x01); // entry count
4719 avio_wb16(pb, 0x01); // font ID
4720 avio_w8(pb, 0x00); // font name length
4722 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4723 track->enc->extradata = buf;
4724 track->enc->extradata_size = size;
4731 for (i = 0; i < s->nb_chapters; i++) {
4732 AVChapter *c = s->chapters[i];
4733 AVDictionaryEntry *t;
4735 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4736 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4737 pkt.duration = end - pkt.dts;
4739 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4740 const char encd[12] = {
4741 0x00, 0x00, 0x00, 0x0C,
4743 0x00, 0x00, 0x01, 0x00 };
4744 len = strlen(t->value);
4745 pkt.size = len + 2 + 12;
4746 pkt.data = av_malloc(pkt.size);
4748 return AVERROR(ENOMEM);
4749 AV_WB16(pkt.data, len);
4750 memcpy(pkt.data + 2, t->value, len);
4751 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4752 ff_mov_write_packet(s, &pkt);
4753 av_freep(&pkt.data);
4760 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4763 MOVMuxContext *mov = s->priv_data;
4764 MOVTrack *track = &mov->tracks[index];
4765 AVStream *src_st = s->streams[src_index];
4767 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4768 AVRational rate = find_fps(s, src_st);
4770 /* compute the frame number */
4771 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4775 /* tmcd track based on video stream */
4776 track->mode = mov->mode;
4777 track->tag = MKTAG('t','m','c','d');
4778 track->src_track = src_index;
4779 track->timescale = mov->tracks[src_index].timescale;
4780 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4781 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4783 /* set st to src_st for metadata access*/
4786 /* encode context: tmcd data stream */
4787 track->enc = avcodec_alloc_context3(NULL);
4789 return AVERROR(ENOMEM);
4790 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4791 track->enc->codec_tag = track->tag;
4792 track->enc->time_base = av_inv_q(rate);
4794 /* the tmcd track just contains one packet with the frame number */
4795 pkt.data = av_malloc(pkt.size);
4797 return AVERROR(ENOMEM);
4798 AV_WB32(pkt.data, tc.start);
4799 ret = ff_mov_write_packet(s, &pkt);
4805 * st->disposition controls the "enabled" flag in the tkhd tag.
4806 * QuickTime will not play a track if it is not enabled. So make sure
4807 * that one track of each type (audio, video, subtitle) is enabled.
4809 * Subtitles are special. For audio and video, setting "enabled" also
4810 * makes the track "default" (i.e. it is rendered when played). For
4811 * subtitles, an "enabled" subtitle is not rendered by default, but
4812 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4815 static void enable_tracks(AVFormatContext *s)
4817 MOVMuxContext *mov = s->priv_data;
4819 int enabled[AVMEDIA_TYPE_NB];
4820 int first[AVMEDIA_TYPE_NB];
4822 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4827 for (i = 0; i < s->nb_streams; i++) {
4828 AVStream *st = s->streams[i];
4830 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4831 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4834 if (first[st->codec->codec_type] < 0)
4835 first[st->codec->codec_type] = i;
4836 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4837 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4838 enabled[st->codec->codec_type]++;
4842 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4844 case AVMEDIA_TYPE_VIDEO:
4845 case AVMEDIA_TYPE_AUDIO:
4846 case AVMEDIA_TYPE_SUBTITLE:
4848 mov->per_stream_grouping = 1;
4849 if (!enabled[i] && first[i] >= 0)
4850 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4856 static void mov_free(AVFormatContext *s)
4858 MOVMuxContext *mov = s->priv_data;
4861 if (mov->chapter_track) {
4862 if (mov->tracks[mov->chapter_track].enc)
4863 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4864 av_freep(&mov->tracks[mov->chapter_track].enc);
4867 for (i = 0; i < mov->nb_streams; i++) {
4868 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4869 ff_mov_close_hinting(&mov->tracks[i]);
4870 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4871 av_freep(&mov->tracks[i].enc);
4872 av_freep(&mov->tracks[i].cluster);
4873 av_freep(&mov->tracks[i].frag_info);
4875 if (mov->tracks[i].vos_len)
4876 av_freep(&mov->tracks[i].vos_data);
4879 av_freep(&mov->tracks);
4882 static uint32_t rgb_to_yuv(uint32_t rgb)
4887 r = (rgb >> 16) & 0xFF;
4888 g = (rgb >> 8) & 0xFF;
4891 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
4892 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
4893 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
4895 return (y << 16) | (cr << 8) | cb;
4898 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4901 int i, width = 720, height = 480;
4902 int have_palette = 0, have_size = 0;
4903 uint32_t palette[16];
4904 char *cur = st->codec->extradata;
4906 while (cur && *cur) {
4907 if (strncmp("palette:", cur, 8) == 0) {
4909 count = sscanf(cur + 8,
4910 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4911 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4912 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4913 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4914 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4915 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4916 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4917 &palette[12], &palette[13], &palette[14], &palette[15]);
4919 for (i = 0; i < count; i++) {
4920 palette[i] = rgb_to_yuv(palette[i]);
4923 } else if (!strncmp("size:", cur, 5)) {
4924 sscanf(cur + 5, "%dx%d", &width, &height);
4927 if (have_palette && have_size)
4929 cur += strcspn(cur, "\n\r");
4930 cur += strspn(cur, "\n\r");
4933 track->vos_data = av_malloc(16*4);
4934 if (!track->vos_data)
4935 return AVERROR(ENOMEM);
4936 for (i = 0; i < 16; i++) {
4937 AV_WB32(track->vos_data + i * 4, palette[i]);
4939 track->vos_len = 16 * 4;
4941 st->codec->width = width;
4942 st->codec->height = track->height = height;
4947 static int mov_write_header(AVFormatContext *s)
4949 AVIOContext *pb = s->pb;
4950 MOVMuxContext *mov = s->priv_data;
4951 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4952 int i, ret, hint_track = 0, tmcd_track = 0;
4956 /* Default mode == MP4 */
4957 mov->mode = MODE_MP4;
4960 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4961 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4962 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4963 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4964 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4965 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4966 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4969 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4970 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
4972 /* Set the FRAGMENT flag if any of the fragmentation methods are
4974 if (mov->max_fragment_duration || mov->max_fragment_size ||
4975 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4976 FF_MOV_FLAG_FRAG_KEYFRAME |
4977 FF_MOV_FLAG_FRAG_CUSTOM))
4978 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4980 /* Set other implicit flags immediately */
4981 if (mov->mode == MODE_ISM)
4982 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4983 FF_MOV_FLAG_FRAGMENT;
4984 if (mov->flags & FF_MOV_FLAG_DASH)
4985 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4986 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4988 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4989 mov->reserved_moov_size = -1;
4992 if (mov->use_editlist < 0) {
4993 mov->use_editlist = 1;
4994 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4995 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4996 // If we can avoid needing an edit list by shifting the
4997 // tracks, prefer that over (trying to) write edit lists
4998 // in fragmented output.
4999 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5000 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5001 mov->use_editlist = 0;
5004 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5005 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5006 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5008 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5009 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5011 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5012 * if the latter is set that's enough and omit_tfhd_offset doesn't
5013 * add anything extra on top of that. */
5014 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5015 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5016 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5018 if (mov->frag_interleave &&
5019 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5020 av_log(s, AV_LOG_ERROR,
5021 "Sample interleaving in fragments is mutually exclusive with "
5022 "omit_tfhd_offset and separate_moof\n");
5023 return AVERROR(EINVAL);
5026 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5027 * is enabled, we don't support non-seekable output at all. */
5028 if (!s->pb->seekable &&
5029 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5030 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5031 return AVERROR(EINVAL);
5034 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5035 if ((ret = mov_write_identification(pb, s)) < 0)
5039 mov->nb_streams = s->nb_streams;
5040 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5041 mov->chapter_track = mov->nb_streams++;
5043 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5044 /* Add hint tracks for each audio and video stream */
5045 hint_track = mov->nb_streams;
5046 for (i = 0; i < s->nb_streams; i++) {
5047 AVStream *st = s->streams[i];
5048 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5049 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5055 if (mov->mode == MODE_MOV) {
5056 tmcd_track = mov->nb_streams;
5058 /* +1 tmcd track for each video stream with a timecode */
5059 for (i = 0; i < s->nb_streams; i++) {
5060 AVStream *st = s->streams[i];
5061 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
5062 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
5063 mov->nb_meta_tmcd++;
5066 /* check if there is already a tmcd track to remux */
5067 if (mov->nb_meta_tmcd) {
5068 for (i = 0; i < s->nb_streams; i++) {
5069 AVStream *st = s->streams[i];
5070 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
5071 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5072 "so timecode metadata are now ignored\n");
5073 mov->nb_meta_tmcd = 0;
5078 mov->nb_streams += mov->nb_meta_tmcd;
5081 // Reserve an extra stream for chapters for the case where chapters
5082 // are written in the trailer
5083 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5085 return AVERROR(ENOMEM);
5087 for (i = 0; i < s->nb_streams; i++) {
5088 AVStream *st= s->streams[i];
5089 MOVTrack *track= &mov->tracks[i];
5090 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5093 track->enc = st->codec;
5094 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5095 if (track->language < 0)
5096 track->language = 0;
5097 track->mode = mov->mode;
5098 track->tag = mov_find_codec_tag(s, track);
5100 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5101 "codec not currently supported in container\n",
5102 avcodec_get_name(st->codec->codec_id), i);
5103 ret = AVERROR(EINVAL);
5106 /* If hinting of this track is enabled by a later hint track,
5107 * this is updated. */
5108 track->hint_track = -1;
5109 track->start_dts = AV_NOPTS_VALUE;
5110 track->start_cts = AV_NOPTS_VALUE;
5111 track->end_pts = AV_NOPTS_VALUE;
5112 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5113 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5114 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5115 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5116 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
5117 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5118 ret = AVERROR(EINVAL);
5121 track->height = track->tag >> 24 == 'n' ? 486 : 576;
5123 if (mov->video_track_timescale) {
5124 track->timescale = mov->video_track_timescale;
5126 track->timescale = st->time_base.den;
5127 while(track->timescale < 10000)
5128 track->timescale *= 2;
5130 if (st->codec->width > 65535 || st->codec->height > 65535) {
5131 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
5132 ret = AVERROR(EINVAL);
5135 if (track->mode == MODE_MOV && track->timescale > 100000)
5136 av_log(s, AV_LOG_WARNING,
5137 "WARNING codec timebase is very high. If duration is too long,\n"
5138 "file may not be playable by quicktime. Specify a shorter timebase\n"
5139 "or choose different container.\n");
5140 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5141 track->timescale = st->codec->sample_rate;
5142 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
5143 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
5144 track->audio_vbr = 1;
5145 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
5146 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
5147 st->codec->codec_id == AV_CODEC_ID_ILBC){
5148 if (!st->codec->block_align) {
5149 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
5150 ret = AVERROR(EINVAL);
5153 track->sample_size = st->codec->block_align;
5154 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
5155 track->audio_vbr = 1;
5157 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
5159 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
5160 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
5161 track->audio_vbr = 1;
5163 if (track->mode != MODE_MOV &&
5164 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5165 if (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
5166 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
5167 i, track->enc->sample_rate);
5168 ret = AVERROR(EINVAL);
5171 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
5172 i, track->enc->sample_rate);
5175 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5176 track->timescale = st->time_base.den;
5177 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
5178 track->timescale = st->time_base.den;
5180 track->timescale = MOV_TIMESCALE;
5183 track->height = st->codec->height;
5184 /* The ism specific timescale isn't mandatory, but is assumed by
5185 * some tools, such as mp4split. */
5186 if (mov->mode == MODE_ISM)
5187 track->timescale = 10000000;
5189 avpriv_set_pts_info(st, 64, 1, track->timescale);
5191 /* copy extradata if it exists */
5192 if (st->codec->extradata_size) {
5193 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
5194 mov_create_dvd_sub_decoder_specific_info(track, st);
5195 else if (!TAG_IS_AVCI(track->tag) && st->codec->codec_id != AV_CODEC_ID_DNXHD) {
5196 track->vos_len = st->codec->extradata_size;
5197 track->vos_data = av_malloc(track->vos_len);
5198 if (!track->vos_data) {
5199 ret = AVERROR(ENOMEM);
5202 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
5207 for (i = 0; i < s->nb_streams; i++) {
5209 AVStream *st= s->streams[i];
5210 MOVTrack *track= &mov->tracks[i];
5212 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5213 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
5216 for (j = 0; j < s->nb_streams; j++) {
5217 AVStream *stj= s->streams[j];
5218 MOVTrack *trackj= &mov->tracks[j];
5222 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5223 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
5224 trackj->language != track->language ||
5225 trackj->tag != track->tag
5228 track->multichannel_as_mono++;
5235 if (mov->reserved_moov_size){
5236 mov->reserved_header_pos = avio_tell(pb);
5237 if (mov->reserved_moov_size > 0)
5238 avio_skip(pb, mov->reserved_moov_size);
5241 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5242 /* If no fragmentation options have been set, set a default. */
5243 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5244 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5245 !mov->max_fragment_duration && !mov->max_fragment_size)
5246 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5248 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5249 mov->reserved_header_pos = avio_tell(pb);
5250 mov_write_mdat_tag(pb, mov);
5253 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0)) {
5254 mov->time = ff_iso8601_to_unix_time(t->value);
5255 if (mov->time < 0) {
5256 av_log(s, AV_LOG_WARNING, "Failed to parse creation_time %s\n", t->value);
5261 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5263 if (mov->chapter_track)
5264 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5267 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5268 /* Initialize the hint tracks for each audio and video stream */
5269 for (i = 0; i < s->nb_streams; i++) {
5270 AVStream *st = s->streams[i];
5271 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5272 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5273 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5280 if (mov->nb_meta_tmcd) {
5281 /* Initialize the tmcd tracks */
5282 for (i = 0; i < s->nb_streams; i++) {
5283 AVStream *st = s->streams[i];
5286 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5288 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5291 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5300 if (mov->flags & FF_MOV_FLAG_ISML)
5301 mov_write_isml_manifest(pb, mov);
5303 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5304 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5305 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5307 mov->moov_written = 1;
5308 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5309 mov->reserved_header_pos = avio_tell(pb);
5318 static int get_moov_size(AVFormatContext *s)
5321 AVIOContext *moov_buf;
5322 MOVMuxContext *mov = s->priv_data;
5324 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5326 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5328 return ffio_close_null_buf(moov_buf);
5331 static int get_sidx_size(AVFormatContext *s)
5335 MOVMuxContext *mov = s->priv_data;
5337 if ((ret = ffio_open_null_buf(&buf)) < 0)
5339 mov_write_sidx_tags(buf, mov, -1, 0);
5340 return ffio_close_null_buf(buf);
5344 * This function gets the moov size if moved to the top of the file: the chunk
5345 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5346 * entries) when the moov is moved to the beginning, so the size of the moov
5347 * would change. It also updates the chunk offset tables.
5349 static int compute_moov_size(AVFormatContext *s)
5351 int i, moov_size, moov_size2;
5352 MOVMuxContext *mov = s->priv_data;
5354 moov_size = get_moov_size(s);
5358 for (i = 0; i < mov->nb_streams; i++)
5359 mov->tracks[i].data_offset += moov_size;
5361 moov_size2 = get_moov_size(s);
5365 /* if the size changed, we just switched from stco to co64 and need to
5366 * update the offsets */
5367 if (moov_size2 != moov_size)
5368 for (i = 0; i < mov->nb_streams; i++)
5369 mov->tracks[i].data_offset += moov_size2 - moov_size;
5374 static int compute_sidx_size(AVFormatContext *s)
5377 MOVMuxContext *mov = s->priv_data;
5379 sidx_size = get_sidx_size(s);
5383 for (i = 0; i < mov->nb_streams; i++)
5384 mov->tracks[i].data_offset += sidx_size;
5389 static int shift_data(AVFormatContext *s)
5391 int ret = 0, moov_size;
5392 MOVMuxContext *mov = s->priv_data;
5393 int64_t pos, pos_end = avio_tell(s->pb);
5394 uint8_t *buf, *read_buf[2];
5395 int read_buf_id = 0;
5397 AVIOContext *read_pb;
5399 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5400 moov_size = compute_sidx_size(s);
5402 moov_size = compute_moov_size(s);
5406 buf = av_malloc(moov_size * 2);
5408 return AVERROR(ENOMEM);
5410 read_buf[1] = buf + moov_size;
5412 /* Shift the data: the AVIO context of the output can only be used for
5413 * writing, so we re-open the same output, but for reading. It also avoids
5414 * a read/seek/write/seek back and forth. */
5416 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5418 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5419 "the second pass (faststart)\n", s->filename);
5423 /* mark the end of the shift to up to the last data we wrote, and get ready
5425 pos_end = avio_tell(s->pb);
5426 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
5428 /* start reading at where the new moov will be placed */
5429 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
5430 pos = avio_tell(read_pb);
5432 #define READ_BLOCK do { \
5433 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5437 /* shift data by chunk of at most moov_size */
5442 n = read_size[read_buf_id];
5445 avio_write(s->pb, read_buf[read_buf_id], n);
5447 } while (pos < pos_end);
5448 avio_close(read_pb);
5455 static int mov_write_trailer(AVFormatContext *s)
5457 MOVMuxContext *mov = s->priv_data;
5458 AVIOContext *pb = s->pb;
5464 * Before actually writing the trailer, make sure that there are no
5465 * dangling subtitles, that need a terminating sample.
5467 for (i = 0; i < mov->nb_streams; i++) {
5468 MOVTrack *trk = &mov->tracks[i];
5469 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5470 !trk->last_sample_is_subtitle_end) {
5471 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5472 trk->last_sample_is_subtitle_end = 1;
5476 // If there were no chapters when the header was written, but there
5477 // are chapters now, write them in the trailer. This only works
5478 // when we are not doing fragments.
5479 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5480 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5481 mov->chapter_track = mov->nb_streams++;
5482 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5487 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5488 moov_pos = avio_tell(pb);
5490 /* Write size of mdat tag */
5491 if (mov->mdat_size + 8 <= UINT32_MAX) {
5492 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5493 avio_wb32(pb, mov->mdat_size + 8);
5495 /* overwrite 'wide' placeholder atom */
5496 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5497 /* special value: real atom size will be 64 bit value after
5500 ffio_wfourcc(pb, "mdat");
5501 avio_wb64(pb, mov->mdat_size + 16);
5503 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
5505 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5506 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5507 res = shift_data(s);
5509 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5510 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5513 } else if (mov->reserved_moov_size > 0) {
5515 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5517 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
5519 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5520 res = AVERROR(EINVAL);
5523 avio_wb32(pb, size);
5524 ffio_wfourcc(pb, "free");
5525 ffio_fill(pb, 0, size - 8);
5526 avio_seek(pb, moov_pos, SEEK_SET);
5528 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5533 mov_auto_flush_fragment(s);
5534 for (i = 0; i < mov->nb_streams; i++)
5535 mov->tracks[i].data_offset = 0;
5536 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
5537 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5538 res = shift_data(s);
5540 int64_t end = avio_tell(pb);
5541 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5542 mov_write_sidx_tags(pb, mov, -1, 0);
5543 avio_seek(pb, end, SEEK_SET);
5544 mov_write_mfra_tag(pb, mov);
5547 mov_write_mfra_tag(pb, mov);
5557 #if CONFIG_MOV_MUXER
5559 AVOutputFormat ff_mov_muxer = {
5561 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5562 .extensions = "mov",
5563 .priv_data_size = sizeof(MOVMuxContext),
5564 .audio_codec = AV_CODEC_ID_AAC,
5565 .video_codec = CONFIG_LIBX264_ENCODER ?
5566 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5567 .write_header = mov_write_header,
5568 .write_packet = mov_write_packet,
5569 .write_trailer = mov_write_trailer,
5570 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5571 .codec_tag = (const AVCodecTag* const []){
5572 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5574 .priv_class = &mov_muxer_class,
5577 #if CONFIG_TGP_MUXER
5579 AVOutputFormat ff_tgp_muxer = {
5581 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5582 .extensions = "3gp",
5583 .priv_data_size = sizeof(MOVMuxContext),
5584 .audio_codec = AV_CODEC_ID_AMR_NB,
5585 .video_codec = AV_CODEC_ID_H263,
5586 .write_header = mov_write_header,
5587 .write_packet = mov_write_packet,
5588 .write_trailer = mov_write_trailer,
5589 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5590 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5591 .priv_class = &tgp_muxer_class,
5594 #if CONFIG_MP4_MUXER
5596 AVOutputFormat ff_mp4_muxer = {
5598 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5599 .mime_type = "video/mp4",
5600 .extensions = "mp4",
5601 .priv_data_size = sizeof(MOVMuxContext),
5602 .audio_codec = AV_CODEC_ID_AAC,
5603 .video_codec = CONFIG_LIBX264_ENCODER ?
5604 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5605 .write_header = mov_write_header,
5606 .write_packet = mov_write_packet,
5607 .write_trailer = mov_write_trailer,
5608 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5609 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5610 .priv_class = &mp4_muxer_class,
5613 #if CONFIG_PSP_MUXER
5615 AVOutputFormat ff_psp_muxer = {
5617 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5618 .extensions = "mp4,psp",
5619 .priv_data_size = sizeof(MOVMuxContext),
5620 .audio_codec = AV_CODEC_ID_AAC,
5621 .video_codec = CONFIG_LIBX264_ENCODER ?
5622 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5623 .write_header = mov_write_header,
5624 .write_packet = mov_write_packet,
5625 .write_trailer = mov_write_trailer,
5626 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5627 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5628 .priv_class = &psp_muxer_class,
5631 #if CONFIG_TG2_MUXER
5633 AVOutputFormat ff_tg2_muxer = {
5635 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5636 .extensions = "3g2",
5637 .priv_data_size = sizeof(MOVMuxContext),
5638 .audio_codec = AV_CODEC_ID_AMR_NB,
5639 .video_codec = AV_CODEC_ID_H263,
5640 .write_header = mov_write_header,
5641 .write_packet = mov_write_packet,
5642 .write_trailer = mov_write_trailer,
5643 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5644 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5645 .priv_class = &tg2_muxer_class,
5648 #if CONFIG_IPOD_MUXER
5650 AVOutputFormat ff_ipod_muxer = {
5652 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5653 .mime_type = "video/mp4",
5654 .extensions = "m4v,m4a",
5655 .priv_data_size = sizeof(MOVMuxContext),
5656 .audio_codec = AV_CODEC_ID_AAC,
5657 .video_codec = AV_CODEC_ID_H264,
5658 .write_header = mov_write_header,
5659 .write_packet = mov_write_packet,
5660 .write_trailer = mov_write_trailer,
5661 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5662 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5663 .priv_class = &ipod_muxer_class,
5666 #if CONFIG_ISMV_MUXER
5668 AVOutputFormat ff_ismv_muxer = {
5670 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5671 .mime_type = "video/mp4",
5672 .extensions = "ismv,isma",
5673 .priv_data_size = sizeof(MOVMuxContext),
5674 .audio_codec = AV_CODEC_ID_AAC,
5675 .video_codec = AV_CODEC_ID_H264,
5676 .write_header = mov_write_header,
5677 .write_packet = mov_write_packet,
5678 .write_trailer = mov_write_trailer,
5679 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5680 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5681 .priv_class = &ismv_muxer_class,
5684 #if CONFIG_F4V_MUXER
5686 AVOutputFormat ff_f4v_muxer = {
5688 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5689 .mime_type = "application/f4v",
5690 .extensions = "f4v",
5691 .priv_data_size = sizeof(MOVMuxContext),
5692 .audio_codec = AV_CODEC_ID_AAC,
5693 .video_codec = AV_CODEC_ID_H264,
5694 .write_header = mov_write_header,
5695 .write_packet = mov_write_packet,
5696 .write_trailer = mov_write_trailer,
5697 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5698 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5699 .priv_class = &f4v_muxer_class,