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_header(&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_header(&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)
443 av_packet_unref(pkt);
444 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
446 av_packet_unref(&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_packet_unref(&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 MOVTrack *track = &mov->tracks[i];
3205 if (track->tag == MKTAG('r','t','p',' ')) {
3206 track->tref_tag = MKTAG('h','i','n','t');
3207 track->tref_id = mov->tracks[track->src_track].track_id;
3208 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3209 int * fallback, size;
3210 fallback = (int*)av_stream_get_side_data(track->st,
3211 AV_PKT_DATA_FALLBACK_TRACK,
3213 if (fallback != NULL && size == sizeof(int)) {
3214 if (*fallback >= 0 && *fallback < mov->nb_streams) {
3215 track->tref_tag = MKTAG('f','a','l','l');
3216 track->tref_id = mov->tracks[*fallback].track_id;
3221 for (i = 0; i < mov->nb_streams; i++) {
3222 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3223 int src_trk = mov->tracks[i].src_track;
3224 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3225 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3226 //src_trk may have a different timescale than the tmcd track
3227 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3228 mov->tracks[i].timescale,
3229 mov->tracks[src_trk].timescale);
3233 mov_write_mvhd_tag(pb, mov);
3234 if (mov->mode != MODE_MOV && !mov->iods_skip)
3235 mov_write_iods_tag(pb, mov);
3236 for (i = 0; i < mov->nb_streams; i++) {
3237 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3238 int ret = mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3243 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3244 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3246 if (mov->mode == MODE_PSP)
3247 mov_write_uuidusmt_tag(pb, s);
3249 mov_write_udta_tag(pb, mov, s);
3251 return update_size(pb, pos);
3254 static void param_write_int(AVIOContext *pb, const char *name, int value)
3256 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3259 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3261 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3264 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3267 len = FFMIN(sizeof(buf) / 2 - 1, len);
3268 ff_data_to_hex(buf, value, len, 0);
3269 buf[2 * len] = '\0';
3270 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3273 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3275 int64_t pos = avio_tell(pb);
3277 static const uint8_t uuid[] = {
3278 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3279 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3283 ffio_wfourcc(pb, "uuid");
3284 avio_write(pb, uuid, sizeof(uuid));
3287 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3288 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3289 avio_printf(pb, "<head>\n");
3290 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
3291 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3293 avio_printf(pb, "</head>\n");
3294 avio_printf(pb, "<body>\n");
3295 avio_printf(pb, "<switch>\n");
3296 for (i = 0; i < mov->nb_streams; i++) {
3297 MOVTrack *track = &mov->tracks[i];
3299 /* track->track_id is initialized in write_moov, and thus isn't known
3301 int track_id = i + 1;
3303 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3305 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3310 avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
3311 (int64_t)track->enc->bit_rate);
3312 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3313 param_write_int(pb, "trackID", track_id);
3314 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3315 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3317 int size = track->enc->extradata_size;
3318 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3320 param_write_hex(pb, "CodecPrivateData",
3321 ptr ? ptr : track->enc->extradata,
3325 param_write_string(pb, "FourCC", "H264");
3326 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3327 param_write_string(pb, "FourCC", "WVC1");
3328 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3329 track->enc->extradata_size);
3331 param_write_int(pb, "MaxWidth", track->enc->width);
3332 param_write_int(pb, "MaxHeight", track->enc->height);
3333 param_write_int(pb, "DisplayWidth", track->enc->width);
3334 param_write_int(pb, "DisplayHeight", track->enc->height);
3336 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3337 param_write_string(pb, "FourCC", "AACL");
3338 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3339 param_write_string(pb, "FourCC", "WMAP");
3341 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3342 track->enc->extradata_size);
3343 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3344 track->enc->codec_id));
3345 param_write_int(pb, "Channels", track->enc->channels);
3346 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3347 param_write_int(pb, "BitsPerSample", 16);
3348 param_write_int(pb, "PacketSize", track->enc->block_align ?
3349 track->enc->block_align : 4);
3351 avio_printf(pb, "</%s>\n", type);
3353 avio_printf(pb, "</switch>\n");
3354 avio_printf(pb, "</body>\n");
3355 avio_printf(pb, "</smil>\n");
3357 return update_size(pb, pos);
3360 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3363 ffio_wfourcc(pb, "mfhd");
3365 avio_wb32(pb, mov->fragments);
3369 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3371 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3372 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3375 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3376 MOVTrack *track, int64_t moof_offset)
3378 int64_t pos = avio_tell(pb);
3379 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3380 MOV_TFHD_BASE_DATA_OFFSET;
3381 if (!track->entry) {
3382 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3384 flags |= MOV_TFHD_DEFAULT_FLAGS;
3386 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3387 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3388 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3389 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3390 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3393 /* Don't set a default sample size, the silverlight player refuses
3394 * to play files with that set. Don't set a default sample duration,
3395 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3396 * file format says it MUST NOT be set. */
3397 if (track->mode == MODE_ISM)
3398 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3399 MOV_TFHD_BASE_DATA_OFFSET);
3401 avio_wb32(pb, 0); /* size placeholder */
3402 ffio_wfourcc(pb, "tfhd");
3403 avio_w8(pb, 0); /* version */
3404 avio_wb24(pb, flags);
3406 avio_wb32(pb, track->track_id); /* track-id */
3407 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3408 avio_wb64(pb, moof_offset);
3409 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3410 track->default_duration = get_cluster_duration(track, 0);
3411 avio_wb32(pb, track->default_duration);
3413 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3414 track->default_size = track->entry ? track->cluster[0].size : 1;
3415 avio_wb32(pb, track->default_size);
3417 track->default_size = -1;
3419 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3420 /* Set the default flags based on the second sample, if available.
3421 * If the first sample is different, that can be signaled via a separate field. */
3422 if (track->entry > 1)
3423 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
3425 track->default_sample_flags =
3426 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3427 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3428 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3429 avio_wb32(pb, track->default_sample_flags);
3432 return update_size(pb, pos);
3435 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3436 MOVTrack *track, int moof_size,
3439 int64_t pos = avio_tell(pb);
3440 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3443 for (i = first; i < end; i++) {
3444 if (get_cluster_duration(track, i) != track->default_duration)
3445 flags |= MOV_TRUN_SAMPLE_DURATION;
3446 if (track->cluster[i].size != track->default_size)
3447 flags |= MOV_TRUN_SAMPLE_SIZE;
3448 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3449 flags |= MOV_TRUN_SAMPLE_FLAGS;
3451 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
3452 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
3453 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3454 if (track->flags & MOV_TRACK_CTTS)
3455 flags |= MOV_TRUN_SAMPLE_CTS;
3457 avio_wb32(pb, 0); /* size placeholder */
3458 ffio_wfourcc(pb, "trun");
3459 avio_w8(pb, 0); /* version */
3460 avio_wb24(pb, flags);
3462 avio_wb32(pb, end - first); /* sample count */
3463 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3464 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3466 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3468 avio_wb32(pb, moof_size + 8 + track->data_offset +
3469 track->cluster[first].pos); /* data offset */
3470 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3471 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
3473 for (i = first; i < end; i++) {
3474 if (flags & MOV_TRUN_SAMPLE_DURATION)
3475 avio_wb32(pb, get_cluster_duration(track, i));
3476 if (flags & MOV_TRUN_SAMPLE_SIZE)
3477 avio_wb32(pb, track->cluster[i].size);
3478 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3479 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3480 if (flags & MOV_TRUN_SAMPLE_CTS)
3481 avio_wb32(pb, track->cluster[i].cts);
3484 mov->first_trun = 0;
3485 return update_size(pb, pos);
3488 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3490 int64_t pos = avio_tell(pb);
3491 static const uint8_t uuid[] = {
3492 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3493 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3496 avio_wb32(pb, 0); /* size placeholder */
3497 ffio_wfourcc(pb, "uuid");
3498 avio_write(pb, uuid, sizeof(uuid));
3501 avio_wb64(pb, track->start_dts + track->frag_start +
3502 track->cluster[0].cts);
3503 avio_wb64(pb, track->end_pts -
3504 (track->cluster[0].dts + track->cluster[0].cts));
3506 return update_size(pb, pos);
3509 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3510 MOVTrack *track, int entry)
3512 int n = track->nb_frag_info - 1 - entry, i;
3513 int size = 8 + 16 + 4 + 1 + 16*n;
3514 static const uint8_t uuid[] = {
3515 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3516 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3522 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3523 avio_wb32(pb, size);
3524 ffio_wfourcc(pb, "uuid");
3525 avio_write(pb, uuid, sizeof(uuid));
3529 for (i = 0; i < n; i++) {
3530 int index = entry + 1 + i;
3531 avio_wb64(pb, track->frag_info[index].time);
3532 avio_wb64(pb, track->frag_info[index].duration);
3534 if (n < mov->ism_lookahead) {
3535 int free_size = 16 * (mov->ism_lookahead - n);
3536 avio_wb32(pb, free_size);
3537 ffio_wfourcc(pb, "free");
3538 ffio_fill(pb, 0, free_size - 8);
3544 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3547 int64_t pos = avio_tell(pb);
3549 for (i = 0; i < mov->ism_lookahead; i++) {
3550 /* Update the tfrf tag for the last ism_lookahead fragments,
3551 * nb_frag_info - 1 is the next fragment to be written. */
3552 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3554 avio_seek(pb, pos, SEEK_SET);
3558 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3562 for (i = 0; i < mov->nb_streams; i++) {
3563 MOVTrack *track = &mov->tracks[i];
3564 MOVFragmentInfo *info;
3565 if ((tracks >= 0 && i != tracks) || !track->entry)
3567 track->nb_frag_info++;
3568 if (track->nb_frag_info >= track->frag_info_capacity) {
3569 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3570 if (av_reallocp_array(&track->frag_info,
3572 sizeof(*track->frag_info)))
3573 return AVERROR(ENOMEM);
3574 track->frag_info_capacity = new_capacity;
3576 info = &track->frag_info[track->nb_frag_info - 1];
3577 info->offset = avio_tell(pb);
3579 // Try to recreate the original pts for the first packet
3580 // from the fields we have stored
3581 info->time = track->start_dts + track->frag_start +
3582 track->cluster[0].cts;
3583 info->duration = track->end_pts -
3584 (track->cluster[0].dts + track->cluster[0].cts);
3585 // If the pts is less than zero, we will have trimmed
3586 // away parts of the media track using an edit list,
3587 // and the corresponding start presentation time is zero.
3588 if (info->time < 0) {
3589 info->duration += info->time;
3592 info->tfrf_offset = 0;
3593 mov_write_tfrf_tags(pb, mov, track);
3598 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3600 int64_t pos = avio_tell(pb);
3602 avio_wb32(pb, 0); /* size */
3603 ffio_wfourcc(pb, "tfdt");
3604 avio_w8(pb, 1); /* version */
3606 avio_wb64(pb, track->frag_start);
3607 return update_size(pb, pos);
3610 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3611 MOVTrack *track, int64_t moof_offset,
3614 int64_t pos = avio_tell(pb);
3616 avio_wb32(pb, 0); /* size placeholder */
3617 ffio_wfourcc(pb, "traf");
3619 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3620 if (mov->mode != MODE_ISM)
3621 mov_write_tfdt_tag(pb, track);
3622 for (i = 1; i < track->entry; i++) {
3623 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
3624 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
3628 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
3629 if (mov->mode == MODE_ISM) {
3630 mov_write_tfxd_tag(pb, track);
3632 if (mov->ism_lookahead) {
3633 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3635 if (track->nb_frag_info > 0) {
3636 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3637 if (!info->tfrf_offset)
3638 info->tfrf_offset = avio_tell(pb);
3640 avio_wb32(pb, 8 + size);
3641 ffio_wfourcc(pb, "free");
3642 for (i = 0; i < size; i++)
3647 return update_size(pb, pos);
3650 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3651 int tracks, int moof_size)
3653 int64_t pos = avio_tell(pb);
3656 avio_wb32(pb, 0); /* size placeholder */
3657 ffio_wfourcc(pb, "moof");
3658 mov->first_trun = 1;
3660 mov_write_mfhd_tag(pb, mov);
3661 for (i = 0; i < mov->nb_streams; i++) {
3662 MOVTrack *track = &mov->tracks[i];
3663 if (tracks >= 0 && i != tracks)
3667 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3670 return update_size(pb, pos);
3673 static int mov_write_sidx_tag(AVIOContext *pb,
3674 MOVTrack *track, int ref_size, int total_sidx_size)
3676 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3677 int64_t presentation_time, duration, offset;
3678 int starts_with_SAP, i, entries;
3682 presentation_time = track->start_dts + track->frag_start +
3683 track->cluster[0].cts;
3684 duration = track->end_pts -
3685 (track->cluster[0].dts + track->cluster[0].cts);
3686 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3688 // pts<0 should be cut away using edts
3689 if (presentation_time < 0) {
3690 duration += presentation_time;
3691 presentation_time = 0;
3694 entries = track->nb_frag_info;
3697 presentation_time = track->frag_info[0].time;
3700 avio_wb32(pb, 0); /* size */
3701 ffio_wfourcc(pb, "sidx");
3702 avio_w8(pb, 1); /* version */
3704 avio_wb32(pb, track->track_id); /* reference_ID */
3705 avio_wb32(pb, track->timescale); /* timescale */
3706 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3707 offset_pos = avio_tell(pb);
3708 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3709 avio_wb16(pb, 0); /* reserved */
3711 avio_wb16(pb, entries); /* reference_count */
3712 for (i = 0; i < entries; i++) {
3713 if (!track->entry) {
3714 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
3715 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
3717 duration = track->frag_info[i].duration;
3718 ref_size = track->frag_info[i].size;
3719 starts_with_SAP = 1;
3721 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3722 avio_wb32(pb, duration); /* subsegment_duration */
3723 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3726 end_pos = avio_tell(pb);
3727 offset = pos + total_sidx_size - end_pos;
3728 avio_seek(pb, offset_pos, SEEK_SET);
3729 avio_wb64(pb, offset);
3730 avio_seek(pb, end_pos, SEEK_SET);
3731 return update_size(pb, pos);
3734 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3735 int tracks, int ref_size)
3738 AVIOContext *avio_buf;
3740 for (round = 0; round < 2; round++) {
3741 // First run one round to calculate the total size of all
3743 // This would be much simpler if we'd only write one sidx
3744 // atom, for the first track in the moof.
3746 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3751 for (i = 0; i < mov->nb_streams; i++) {
3752 MOVTrack *track = &mov->tracks[i];
3753 if (tracks >= 0 && i != tracks)
3755 // When writing a sidx for the full file, entry is 0, but
3756 // we want to include all tracks. ref_size is 0 in this case,
3757 // since we read it from frag_info instead.
3758 if (!track->entry && ref_size > 0)
3760 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3764 total_size = ffio_close_null_buf(avio_buf);
3769 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3772 AVIOContext *avio_buf;
3775 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3777 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3778 moof_size = ffio_close_null_buf(avio_buf);
3780 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
3781 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3783 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
3786 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3789 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3791 int64_t pos = avio_tell(pb);
3794 avio_wb32(pb, 0); /* size placeholder */
3795 ffio_wfourcc(pb, "tfra");
3796 avio_w8(pb, 1); /* version */
3799 avio_wb32(pb, track->track_id);
3800 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3801 avio_wb32(pb, track->nb_frag_info);
3802 for (i = 0; i < track->nb_frag_info; i++) {
3803 avio_wb64(pb, track->frag_info[i].time);
3804 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
3805 avio_w8(pb, 1); /* traf number */
3806 avio_w8(pb, 1); /* trun number */
3807 avio_w8(pb, 1); /* sample number */
3810 return update_size(pb, pos);
3813 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3815 int64_t pos = avio_tell(pb);
3818 avio_wb32(pb, 0); /* size placeholder */
3819 ffio_wfourcc(pb, "mfra");
3820 /* An empty mfra atom is enough to indicate to the publishing point that
3821 * the stream has ended. */
3822 if (mov->flags & FF_MOV_FLAG_ISML)
3823 return update_size(pb, pos);
3825 for (i = 0; i < mov->nb_streams; i++) {
3826 MOVTrack *track = &mov->tracks[i];
3827 if (track->nb_frag_info)
3828 mov_write_tfra_tag(pb, track);
3832 ffio_wfourcc(pb, "mfro");
3833 avio_wb32(pb, 0); /* version + flags */
3834 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3836 return update_size(pb, pos);
3839 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3841 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3842 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3844 mov->mdat_pos = avio_tell(pb);
3845 avio_wb32(pb, 0); /* size placeholder*/
3846 ffio_wfourcc(pb, "mdat");
3850 /* TODO: This needs to be more general */
3851 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3853 MOVMuxContext *mov = s->priv_data;
3854 int64_t pos = avio_tell(pb);
3855 int has_h264 = 0, has_video = 0;
3859 for (i = 0; i < s->nb_streams; i++) {
3860 AVStream *st = s->streams[i];
3861 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3863 if (st->codec->codec_id == AV_CODEC_ID_H264)
3867 avio_wb32(pb, 0); /* size */
3868 ffio_wfourcc(pb, "ftyp");
3870 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3871 ffio_wfourcc(pb, mov->major_brand);
3872 else if (mov->mode == MODE_3GP) {
3873 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3874 minor = has_h264 ? 0x100 : 0x200;
3875 } else if (mov->mode & MODE_3G2) {
3876 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3877 minor = has_h264 ? 0x20000 : 0x10000;
3878 } else if (mov->mode == MODE_PSP)
3879 ffio_wfourcc(pb, "MSNV");
3880 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3881 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3882 else if (mov->mode == MODE_MP4)
3883 ffio_wfourcc(pb, "isom");
3884 else if (mov->mode == MODE_IPOD)
3885 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3886 else if (mov->mode == MODE_ISM)
3887 ffio_wfourcc(pb, "isml");
3888 else if (mov->mode == MODE_F4V)
3889 ffio_wfourcc(pb, "f4v ");
3891 ffio_wfourcc(pb, "qt ");
3893 avio_wb32(pb, minor);
3895 if (mov->mode == MODE_MOV)
3896 ffio_wfourcc(pb, "qt ");
3897 else if (mov->mode == MODE_ISM) {
3898 ffio_wfourcc(pb, "piff");
3899 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3900 ffio_wfourcc(pb, "isom");
3901 ffio_wfourcc(pb, "iso2");
3903 ffio_wfourcc(pb, "avc1");
3906 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3907 // brand. This is compatible with users that don't understand tfdt.
3908 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3909 ffio_wfourcc(pb, "iso6");
3911 if (mov->mode == MODE_3GP)
3912 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3913 else if (mov->mode & MODE_3G2)
3914 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3915 else if (mov->mode == MODE_PSP)
3916 ffio_wfourcc(pb, "MSNV");
3917 else if (mov->mode == MODE_MP4)
3918 ffio_wfourcc(pb, "mp41");
3920 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3921 ffio_wfourcc(pb, "dash");
3923 return update_size(pb, pos);
3926 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3928 AVStream *video_st = s->streams[0];
3929 AVCodecContext *video_codec = s->streams[0]->codec;
3930 AVCodecContext *audio_codec = s->streams[1]->codec;
3931 int audio_rate = audio_codec->sample_rate;
3932 // TODO: should be avg_frame_rate
3933 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3934 int audio_kbitrate = audio_codec->bit_rate / 1000;
3935 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3937 avio_wb32(pb, 0x94); /* size */
3938 ffio_wfourcc(pb, "uuid");
3939 ffio_wfourcc(pb, "PROF");
3941 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3942 avio_wb32(pb, 0xbb88695c);
3943 avio_wb32(pb, 0xfac9c740);
3945 avio_wb32(pb, 0x0); /* ? */
3946 avio_wb32(pb, 0x3); /* 3 sections ? */
3948 avio_wb32(pb, 0x14); /* size */
3949 ffio_wfourcc(pb, "FPRF");
3950 avio_wb32(pb, 0x0); /* ? */
3951 avio_wb32(pb, 0x0); /* ? */
3952 avio_wb32(pb, 0x0); /* ? */
3954 avio_wb32(pb, 0x2c); /* size */
3955 ffio_wfourcc(pb, "APRF"); /* audio */
3957 avio_wb32(pb, 0x2); /* TrackID */
3958 ffio_wfourcc(pb, "mp4a");
3959 avio_wb32(pb, 0x20f);
3961 avio_wb32(pb, audio_kbitrate);
3962 avio_wb32(pb, audio_kbitrate);
3963 avio_wb32(pb, audio_rate);
3964 avio_wb32(pb, audio_codec->channels);
3966 avio_wb32(pb, 0x34); /* size */
3967 ffio_wfourcc(pb, "VPRF"); /* video */
3969 avio_wb32(pb, 0x1); /* TrackID */
3970 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3971 ffio_wfourcc(pb, "avc1");
3972 avio_wb16(pb, 0x014D);
3973 avio_wb16(pb, 0x0015);
3975 ffio_wfourcc(pb, "mp4v");
3976 avio_wb16(pb, 0x0000);
3977 avio_wb16(pb, 0x0103);
3980 avio_wb32(pb, video_kbitrate);
3981 avio_wb32(pb, video_kbitrate);
3982 avio_wb32(pb, frame_rate);
3983 avio_wb32(pb, frame_rate);
3984 avio_wb16(pb, video_codec->width);
3985 avio_wb16(pb, video_codec->height);
3986 avio_wb32(pb, 0x010001); /* ? */
3989 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3991 MOVMuxContext *mov = s->priv_data;
3994 mov_write_ftyp_tag(pb,s);
3995 if (mov->mode == MODE_PSP) {
3996 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3997 for (i = 0; i < s->nb_streams; i++) {
3998 AVStream *st = s->streams[i];
3999 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4001 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4007 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4008 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4009 return AVERROR(EINVAL);
4011 mov_write_uuidprof_tag(pb, s);
4016 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
4019 int i, closed_gop = 0;
4021 for (i = 0; i < pkt->size - 4; i++) {
4022 c = (c << 8) + pkt->data[i];
4023 if (c == 0x1b8) { // gop
4024 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
4025 } else if (c == 0x100) { // pic
4026 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
4027 if (!temp_ref || closed_gop) // I picture is not reordered
4028 *flags = MOV_SYNC_SAMPLE;
4030 *flags = MOV_PARTIAL_SYNC_SAMPLE;
4037 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
4039 const uint8_t *start, *next, *end = pkt->data + pkt->size;
4040 int seq = 0, entry = 0;
4041 int key = pkt->flags & AV_PKT_FLAG_KEY;
4042 start = find_next_marker(pkt->data, end);
4043 for (next = start; next < end; start = next) {
4044 next = find_next_marker(start + 4, end);
4045 switch (AV_RB32(start)) {
4046 case VC1_CODE_SEQHDR:
4049 case VC1_CODE_ENTRYPOINT:
4052 case VC1_CODE_SLICE:
4053 trk->vc1_info.slices = 1;
4057 if (!trk->entry && trk->vc1_info.first_packet_seen)
4058 trk->vc1_info.first_frag_written = 1;
4059 if (!trk->entry && !trk->vc1_info.first_frag_written) {
4060 /* First packet in first fragment */
4061 trk->vc1_info.first_packet_seq = seq;
4062 trk->vc1_info.first_packet_entry = entry;
4063 trk->vc1_info.first_packet_seen = 1;
4064 } else if ((seq && !trk->vc1_info.packet_seq) ||
4065 (entry && !trk->vc1_info.packet_entry)) {
4067 for (i = 0; i < trk->entry; i++)
4068 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
4069 trk->has_keyframes = 0;
4071 trk->vc1_info.packet_seq = 1;
4073 trk->vc1_info.packet_entry = 1;
4074 if (!trk->vc1_info.first_frag_written) {
4075 /* First fragment */
4076 if ((!seq || trk->vc1_info.first_packet_seq) &&
4077 (!entry || trk->vc1_info.first_packet_entry)) {
4078 /* First packet had the same headers as this one, readd the
4079 * sync sample flag. */
4080 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
4081 trk->has_keyframes = 1;
4085 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
4087 else if (trk->vc1_info.packet_seq)
4089 else if (trk->vc1_info.packet_entry)
4092 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
4093 trk->has_keyframes++;
4097 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
4099 MOVMuxContext *mov = s->priv_data;
4104 if (!track->mdat_buf)
4106 if (!mov->mdat_buf) {
4107 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4110 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4111 track->mdat_buf = NULL;
4113 offset = avio_tell(mov->mdat_buf);
4114 avio_write(mov->mdat_buf, buf, buf_size);
4117 for (i = track->entries_flushed; i < track->entry; i++)
4118 track->cluster[i].pos += offset;
4119 track->entries_flushed = track->entry;
4123 static int mov_flush_fragment(AVFormatContext *s, int force)
4125 MOVMuxContext *mov = s->priv_data;
4126 int i, first_track = -1;
4127 int64_t mdat_size = 0;
4130 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
4133 for (i = 0; i < mov->nb_streams; i++) {
4134 MOVTrack *track = &mov->tracks[i];
4135 if (track->entry <= 1)
4137 // Sample durations are calculated as the diff of dts values,
4138 // but for the last sample in a fragment, we don't know the dts
4139 // of the first sample in the next fragment, so we have to rely
4140 // on what was set as duration in the AVPacket. Not all callers
4141 // set this though, so we might want to replace it with an
4142 // estimate if it currently is zero.
4143 if (get_cluster_duration(track, track->entry - 1) != 0)
4145 // Use the duration (i.e. dts diff) of the second last sample for
4146 // the last one. This is a wild guess (and fatal if it turns out
4147 // to be too long), but probably the best we can do - having a zero
4148 // duration is bad as well.
4149 track->track_duration += get_cluster_duration(track, track->entry - 2);
4150 track->end_pts += get_cluster_duration(track, track->entry - 2);
4151 if (!mov->missing_duration_warned) {
4152 av_log(s, AV_LOG_WARNING,
4153 "Estimating the duration of the last packet in a "
4154 "fragment, consider setting the duration field in "
4155 "AVPacket instead.\n");
4156 mov->missing_duration_warned = 1;
4160 if (!mov->moov_written) {
4161 int64_t pos = avio_tell(s->pb);
4163 int buf_size, moov_size;
4165 for (i = 0; i < mov->nb_streams; i++)
4166 if (!mov->tracks[i].entry)
4168 /* Don't write the initial moov unless all tracks have data */
4169 if (i < mov->nb_streams && !force)
4172 moov_size = get_moov_size(s);
4173 for (i = 0; i < mov->nb_streams; i++)
4174 mov->tracks[i].data_offset = pos + moov_size + 8;
4176 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4177 mov_write_identification(s->pb, s);
4178 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
4181 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
4182 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4183 mov->reserved_header_pos = avio_tell(s->pb);
4185 mov->moov_written = 1;
4189 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4190 mov->mdat_buf = NULL;
4191 avio_wb32(s->pb, buf_size + 8);
4192 ffio_wfourcc(s->pb, "mdat");
4193 avio_write(s->pb, buf, buf_size);
4196 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4197 mov->reserved_header_pos = avio_tell(s->pb);
4199 mov->moov_written = 1;
4201 for (i = 0; i < mov->nb_streams; i++) {
4202 if (mov->tracks[i].entry)
4203 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
4204 mov->tracks[i].track_duration -
4205 mov->tracks[i].cluster[0].dts;
4206 mov->tracks[i].entry = 0;
4212 if (mov->frag_interleave) {
4213 for (i = 0; i < mov->nb_streams; i++) {
4214 MOVTrack *track = &mov->tracks[i];
4216 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
4222 mdat_size = avio_tell(mov->mdat_buf);
4225 for (i = 0; i < mov->nb_streams; i++) {
4226 MOVTrack *track = &mov->tracks[i];
4227 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
4228 track->data_offset = 0;
4230 track->data_offset = mdat_size;
4233 if (track->mdat_buf)
4234 mdat_size += avio_tell(track->mdat_buf);
4235 if (first_track < 0)
4242 for (i = 0; i < mov->nb_streams; i++) {
4243 MOVTrack *track = &mov->tracks[i];
4244 int buf_size, write_moof = 1, moof_tracks = -1;
4246 int64_t duration = 0;
4249 duration = track->start_dts + track->track_duration -
4250 track->cluster[0].dts;
4251 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
4252 if (!track->mdat_buf)
4254 mdat_size = avio_tell(track->mdat_buf);
4257 write_moof = i == first_track;
4263 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
4266 avio_wb32(s->pb, mdat_size + 8);
4267 ffio_wfourcc(s->pb, "mdat");
4271 track->frag_start += duration;
4273 track->entries_flushed = 0;
4274 if (!mov->frag_interleave) {
4275 if (!track->mdat_buf)
4277 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
4278 track->mdat_buf = NULL;
4282 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
4283 mov->mdat_buf = NULL;
4286 avio_write(s->pb, buf, buf_size);
4296 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
4298 MOVMuxContext *mov = s->priv_data;
4299 int had_moov = mov->moov_written;
4300 int ret = mov_flush_fragment(s, force);
4303 // If using delay_moov, the first flush only wrote the moov,
4304 // not the actual moof+mdat pair, thus flush once again.
4305 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4306 ret = mov_flush_fragment(s, force);
4310 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4312 MOVMuxContext *mov = s->priv_data;
4313 AVIOContext *pb = s->pb;
4314 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4315 AVCodecContext *enc = trk->enc;
4316 unsigned int samples_in_chunk = 0;
4317 int size = pkt->size, ret = 0;
4318 uint8_t *reformatted_data = NULL;
4321 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
4322 if (duration < 0 || duration > INT_MAX) {
4323 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
4327 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
4328 pkt->pts = AV_NOPTS_VALUE;
4330 if (pkt->duration < 0) {
4331 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
4332 return AVERROR(EINVAL);
4335 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4337 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4338 if (mov->frag_interleave && mov->fragments > 0) {
4339 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
4340 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
4345 if (!trk->mdat_buf) {
4346 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
4351 if (!mov->mdat_buf) {
4352 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
4359 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
4360 /* We must find out how many AMR blocks there are in one packet */
4361 static const uint16_t packed_size[16] =
4362 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
4365 while (len < size && samples_in_chunk < 100) {
4366 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
4369 if (samples_in_chunk > 1) {
4370 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
4373 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
4374 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
4375 samples_in_chunk = enc->frame_size;
4376 } else if (trk->sample_size)
4377 samples_in_chunk = size / trk->sample_size;
4379 samples_in_chunk = 1;
4381 /* copy extradata if it exists */
4382 if (trk->vos_len == 0 && enc->extradata_size > 0 &&
4383 !TAG_IS_AVCI(trk->tag) &&
4384 (enc->codec_id != AV_CODEC_ID_DNXHD)) {
4385 trk->vos_len = enc->extradata_size;
4386 trk->vos_data = av_malloc(trk->vos_len);
4387 if (!trk->vos_data) {
4388 ret = AVERROR(ENOMEM);
4391 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
4394 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
4395 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
4396 if (!s->streams[pkt->stream_index]->nb_frames) {
4397 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
4398 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
4399 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
4402 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
4404 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
4405 /* from x264 or from bytestream h264 */
4406 /* nal reformating needed */
4407 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4408 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
4410 avio_write(pb, reformatted_data, size);
4412 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
4414 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
4415 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
4416 /* extradata is Annex B, assume the bitstream is too and convert it */
4417 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
4418 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
4419 avio_write(pb, reformatted_data, size);
4421 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
4423 #if CONFIG_AC3_PARSER
4424 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
4425 size = handle_eac3(mov, pkt, trk);
4430 avio_write(pb, pkt->data, size);
4433 avio_write(pb, pkt->data, size);
4436 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
4437 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
4438 /* copy frame to create needed atoms */
4439 trk->vos_len = size;
4440 trk->vos_data = av_malloc(size);
4441 if (!trk->vos_data) {
4442 ret = AVERROR(ENOMEM);
4445 memcpy(trk->vos_data, pkt->data, size);
4448 if (trk->entry >= trk->cluster_capacity) {
4449 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4450 if (av_reallocp_array(&trk->cluster, new_capacity,
4451 sizeof(*trk->cluster))) {
4452 ret = AVERROR(ENOMEM);
4455 trk->cluster_capacity = new_capacity;
4458 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4459 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4460 trk->cluster[trk->entry].chunkNum = 0;
4461 trk->cluster[trk->entry].size = size;
4462 trk->cluster[trk->entry].entries = samples_in_chunk;
4463 trk->cluster[trk->entry].dts = pkt->dts;
4464 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4465 if (!trk->frag_discont) {
4466 /* First packet of a new fragment. We already wrote the duration
4467 * of the last packet of the previous fragment based on track_duration,
4468 * which might not exactly match our dts. Therefore adjust the dts
4469 * of this packet to be what the previous packets duration implies. */
4470 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4471 /* We also may have written the pts and the corresponding duration
4472 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
4473 * the next fragment. This means the cts of the first sample must
4474 * be the same in all fragments. */
4475 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
4476 mov->mode == MODE_ISM)
4477 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
4479 /* New fragment, but discontinuous from previous fragments.
4480 * Pretend the duration sum of the earlier fragments is
4481 * pkt->dts - trk->start_dts. */
4482 trk->frag_start = pkt->dts - trk->start_dts;
4483 trk->end_pts = AV_NOPTS_VALUE;
4484 trk->frag_discont = 0;
4488 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4489 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4490 /* Not using edit lists and shifting the first track to start from zero.
4491 * If the other streams start from a later timestamp, we won't be able
4492 * to signal the difference in starting time without an edit list.
4493 * Thus move the timestamp for this first sample to 0, increasing
4494 * its duration instead. */
4495 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4497 if (trk->start_dts == AV_NOPTS_VALUE) {
4498 trk->start_dts = pkt->dts;
4499 if (trk->frag_discont) {
4500 if (mov->use_editlist) {
4501 /* Pretend the whole stream started at pts=0, with earlier fragments
4502 * already written. If the stream started at pts=0, the duration sum
4503 * of earlier fragments would have been pkt->pts. */
4504 trk->frag_start = pkt->pts;
4505 trk->start_dts = pkt->dts - pkt->pts;
4507 /* Pretend the whole stream started at dts=0, with earlier fragments
4508 * already written, with a duration summing up to pkt->dts. */
4509 trk->frag_start = pkt->dts;
4512 trk->frag_discont = 0;
4513 } else if (pkt->dts && mov->moov_written)
4514 av_log(s, AV_LOG_WARNING,
4515 "Track %d starts with a nonzero dts %"PRId64", while the moov "
4516 "already has been written. Set the delay_moov flag to handle "
4518 pkt->stream_index, pkt->dts);
4520 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4521 trk->last_sample_is_subtitle_end = 0;
4523 if (pkt->pts == AV_NOPTS_VALUE) {
4524 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4525 pkt->pts = pkt->dts;
4527 if (pkt->dts != pkt->pts)
4528 trk->flags |= MOV_TRACK_CTTS;
4529 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4530 trk->cluster[trk->entry].flags = 0;
4531 if (trk->start_cts == AV_NOPTS_VALUE)
4532 trk->start_cts = pkt->pts - pkt->dts;
4533 if (trk->end_pts == AV_NOPTS_VALUE)
4534 trk->end_pts = trk->cluster[trk->entry].dts +
4535 trk->cluster[trk->entry].cts + pkt->duration;
4537 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
4538 trk->cluster[trk->entry].cts +
4541 if (enc->codec_id == AV_CODEC_ID_VC1) {
4542 mov_parse_vc1_frame(pkt, trk);
4543 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4544 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4545 trk->entry > 0) { // force sync sample for the first key frame
4546 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4547 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4548 trk->flags |= MOV_TRACK_STPS;
4550 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4552 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4553 trk->has_keyframes++;
4556 trk->sample_count += samples_in_chunk;
4557 mov->mdat_size += size;
4559 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4560 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4561 reformatted_data, size);
4566 av_free(reformatted_data);
4570 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4572 MOVMuxContext *mov = s->priv_data;
4573 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4574 AVCodecContext *enc = trk->enc;
4575 int64_t frag_duration = 0;
4576 int size = pkt->size;
4578 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
4580 for (i = 0; i < s->nb_streams; i++)
4581 mov->tracks[i].frag_discont = 1;
4582 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
4586 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
4587 trk->start_dts = pkt->dts;
4588 if (pkt->pts != AV_NOPTS_VALUE)
4589 trk->start_cts = pkt->pts - pkt->dts;
4594 return 0; /* Discard 0 sized packets */
4597 if (trk->entry && pkt->stream_index < s->nb_streams)
4598 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4599 s->streams[pkt->stream_index]->time_base,
4601 if ((mov->max_fragment_duration &&
4602 frag_duration >= mov->max_fragment_duration) ||
4603 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4604 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4605 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4606 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4607 if (frag_duration >= mov->min_fragment_duration) {
4608 // Set the duration of this track to line up with the next
4609 // sample in this track. This avoids relying on AVPacket
4610 // duration, but only helps for this particular track, not
4611 // for the other ones that are flushed at the same time.
4612 trk->track_duration = pkt->dts - trk->start_dts;
4613 trk->end_pts = pkt->pts;
4614 mov_auto_flush_fragment(s, 0);
4618 return ff_mov_write_packet(s, pkt);
4621 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4625 uint8_t data[2] = {0};
4628 av_init_packet(&end);
4629 end.size = sizeof(data);
4634 end.stream_index = stream_index;
4636 ret = mov_write_single_packet(s, &end);
4637 av_packet_unref(&end);
4642 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4645 mov_flush_fragment(s, 1);
4649 MOVMuxContext *mov = s->priv_data;
4652 return mov_write_single_packet(s, pkt); /* Passthrough. */
4655 * Subtitles require special handling.
4657 * 1) For full complaince, every track must have a sample at
4658 * dts == 0, which is rarely true for subtitles. So, as soon
4659 * as we see any packet with dts > 0, write an empty subtitle
4660 * at dts == 0 for any subtitle track with no samples in it.
4662 * 2) For each subtitle track, check if the current packet's
4663 * dts is past the duration of the last subtitle sample. If
4664 * so, we now need to write an end sample for that subtitle.
4666 * This must be done conditionally to allow for subtitles that
4667 * immediately replace each other, in which case an end sample
4668 * is not needed, and is, in fact, actively harmful.
4670 * 3) See mov_write_trailer for how the final end sample is
4673 for (i = 0; i < mov->nb_streams; i++) {
4674 MOVTrack *trk = &mov->tracks[i];
4677 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4678 trk->track_duration < pkt->dts &&
4679 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4680 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4681 if (ret < 0) return ret;
4682 trk->last_sample_is_subtitle_end = 1;
4686 return mov_write_single_packet(s, pkt);
4690 // QuickTime chapters involve an additional text track with the chapter names
4691 // as samples, and a tref pointing from the other tracks to the chapter one.
4692 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4696 MOVMuxContext *mov = s->priv_data;
4697 MOVTrack *track = &mov->tracks[tracknum];
4698 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4701 track->mode = mov->mode;
4702 track->tag = MKTAG('t','e','x','t');
4703 track->timescale = MOV_TIMESCALE;
4704 track->enc = avcodec_alloc_context3(NULL);
4706 return AVERROR(ENOMEM);
4707 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4709 // These properties are required to make QT recognize the chapter track
4710 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4711 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4712 return AVERROR(ENOMEM);
4713 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4715 if (avio_open_dyn_buf(&pb) >= 0) {
4719 /* Stub header (usually for Quicktime chapter track) */
4721 avio_wb32(pb, 0x01); // displayFlags
4722 avio_w8(pb, 0x00); // horizontal justification
4723 avio_w8(pb, 0x00); // vertical justification
4724 avio_w8(pb, 0x00); // bgColourRed
4725 avio_w8(pb, 0x00); // bgColourGreen
4726 avio_w8(pb, 0x00); // bgColourBlue
4727 avio_w8(pb, 0x00); // bgColourAlpha
4729 avio_wb16(pb, 0x00); // defTextBoxTop
4730 avio_wb16(pb, 0x00); // defTextBoxLeft
4731 avio_wb16(pb, 0x00); // defTextBoxBottom
4732 avio_wb16(pb, 0x00); // defTextBoxRight
4734 avio_wb16(pb, 0x00); // startChar
4735 avio_wb16(pb, 0x00); // endChar
4736 avio_wb16(pb, 0x01); // fontID
4737 avio_w8(pb, 0x00); // fontStyleFlags
4738 avio_w8(pb, 0x00); // fontSize
4739 avio_w8(pb, 0x00); // fgColourRed
4740 avio_w8(pb, 0x00); // fgColourGreen
4741 avio_w8(pb, 0x00); // fgColourBlue
4742 avio_w8(pb, 0x00); // fgColourAlpha
4744 avio_wb32(pb, 0x0D); // box size
4745 ffio_wfourcc(pb, "ftab"); // box atom name
4746 avio_wb16(pb, 0x01); // entry count
4748 avio_wb16(pb, 0x01); // font ID
4749 avio_w8(pb, 0x00); // font name length
4751 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4752 track->enc->extradata = buf;
4753 track->enc->extradata_size = size;
4760 for (i = 0; i < s->nb_chapters; i++) {
4761 AVChapter *c = s->chapters[i];
4762 AVDictionaryEntry *t;
4764 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4765 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4766 pkt.duration = end - pkt.dts;
4768 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4769 const char encd[12] = {
4770 0x00, 0x00, 0x00, 0x0C,
4772 0x00, 0x00, 0x01, 0x00 };
4773 len = strlen(t->value);
4774 pkt.size = len + 2 + 12;
4775 pkt.data = av_malloc(pkt.size);
4777 return AVERROR(ENOMEM);
4778 AV_WB16(pkt.data, len);
4779 memcpy(pkt.data + 2, t->value, len);
4780 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4781 ff_mov_write_packet(s, &pkt);
4782 av_freep(&pkt.data);
4789 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4792 MOVMuxContext *mov = s->priv_data;
4793 MOVTrack *track = &mov->tracks[index];
4794 AVStream *src_st = s->streams[src_index];
4796 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4797 AVRational rate = find_fps(s, src_st);
4799 /* compute the frame number */
4800 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4804 /* tmcd track based on video stream */
4805 track->mode = mov->mode;
4806 track->tag = MKTAG('t','m','c','d');
4807 track->src_track = src_index;
4808 track->timescale = mov->tracks[src_index].timescale;
4809 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4810 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4812 /* set st to src_st for metadata access*/
4815 /* encode context: tmcd data stream */
4816 track->enc = avcodec_alloc_context3(NULL);
4818 return AVERROR(ENOMEM);
4819 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4820 track->enc->codec_tag = track->tag;
4821 track->enc->time_base = av_inv_q(rate);
4823 /* the tmcd track just contains one packet with the frame number */
4824 pkt.data = av_malloc(pkt.size);
4826 return AVERROR(ENOMEM);
4827 AV_WB32(pkt.data, tc.start);
4828 ret = ff_mov_write_packet(s, &pkt);
4834 * st->disposition controls the "enabled" flag in the tkhd tag.
4835 * QuickTime will not play a track if it is not enabled. So make sure
4836 * that one track of each type (audio, video, subtitle) is enabled.
4838 * Subtitles are special. For audio and video, setting "enabled" also
4839 * makes the track "default" (i.e. it is rendered when played). For
4840 * subtitles, an "enabled" subtitle is not rendered by default, but
4841 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4844 static void enable_tracks(AVFormatContext *s)
4846 MOVMuxContext *mov = s->priv_data;
4848 int enabled[AVMEDIA_TYPE_NB];
4849 int first[AVMEDIA_TYPE_NB];
4851 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4856 for (i = 0; i < s->nb_streams; i++) {
4857 AVStream *st = s->streams[i];
4859 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4860 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4863 if (first[st->codec->codec_type] < 0)
4864 first[st->codec->codec_type] = i;
4865 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4866 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4867 enabled[st->codec->codec_type]++;
4871 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4873 case AVMEDIA_TYPE_VIDEO:
4874 case AVMEDIA_TYPE_AUDIO:
4875 case AVMEDIA_TYPE_SUBTITLE:
4877 mov->per_stream_grouping = 1;
4878 if (!enabled[i] && first[i] >= 0)
4879 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4885 static void mov_free(AVFormatContext *s)
4887 MOVMuxContext *mov = s->priv_data;
4890 if (mov->chapter_track) {
4891 if (mov->tracks[mov->chapter_track].enc)
4892 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4893 av_freep(&mov->tracks[mov->chapter_track].enc);
4896 for (i = 0; i < mov->nb_streams; i++) {
4897 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4898 ff_mov_close_hinting(&mov->tracks[i]);
4899 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4900 av_freep(&mov->tracks[i].enc);
4901 av_freep(&mov->tracks[i].cluster);
4902 av_freep(&mov->tracks[i].frag_info);
4904 if (mov->tracks[i].vos_len)
4905 av_freep(&mov->tracks[i].vos_data);
4908 av_freep(&mov->tracks);
4911 static uint32_t rgb_to_yuv(uint32_t rgb)
4916 r = (rgb >> 16) & 0xFF;
4917 g = (rgb >> 8) & 0xFF;
4920 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
4921 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
4922 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
4924 return (y << 16) | (cr << 8) | cb;
4927 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4930 int i, width = 720, height = 480;
4931 int have_palette = 0, have_size = 0;
4932 uint32_t palette[16];
4933 char *cur = st->codec->extradata;
4935 while (cur && *cur) {
4936 if (strncmp("palette:", cur, 8) == 0) {
4938 count = sscanf(cur + 8,
4939 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4940 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4941 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4942 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4943 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4944 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4945 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4946 &palette[12], &palette[13], &palette[14], &palette[15]);
4948 for (i = 0; i < count; i++) {
4949 palette[i] = rgb_to_yuv(palette[i]);
4952 } else if (!strncmp("size:", cur, 5)) {
4953 sscanf(cur + 5, "%dx%d", &width, &height);
4956 if (have_palette && have_size)
4958 cur += strcspn(cur, "\n\r");
4959 cur += strspn(cur, "\n\r");
4962 track->vos_data = av_malloc(16*4);
4963 if (!track->vos_data)
4964 return AVERROR(ENOMEM);
4965 for (i = 0; i < 16; i++) {
4966 AV_WB32(track->vos_data + i * 4, palette[i]);
4968 track->vos_len = 16 * 4;
4970 st->codec->width = width;
4971 st->codec->height = track->height = height;
4976 static int mov_write_header(AVFormatContext *s)
4978 AVIOContext *pb = s->pb;
4979 MOVMuxContext *mov = s->priv_data;
4980 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4981 int i, ret, hint_track = 0, tmcd_track = 0;
4985 /* Default mode == MP4 */
4986 mov->mode = MODE_MP4;
4989 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4990 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4991 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4992 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4993 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4994 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4995 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4998 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
4999 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
5001 /* Set the FRAGMENT flag if any of the fragmentation methods are
5003 if (mov->max_fragment_duration || mov->max_fragment_size ||
5004 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
5005 FF_MOV_FLAG_FRAG_KEYFRAME |
5006 FF_MOV_FLAG_FRAG_CUSTOM))
5007 mov->flags |= FF_MOV_FLAG_FRAGMENT;
5009 /* Set other implicit flags immediately */
5010 if (mov->mode == MODE_ISM)
5011 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
5012 FF_MOV_FLAG_FRAGMENT;
5013 if (mov->flags & FF_MOV_FLAG_DASH)
5014 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
5015 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
5017 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5018 mov->reserved_moov_size = -1;
5021 if (mov->use_editlist < 0) {
5022 mov->use_editlist = 1;
5023 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5024 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5025 // If we can avoid needing an edit list by shifting the
5026 // tracks, prefer that over (trying to) write edit lists
5027 // in fragmented output.
5028 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
5029 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
5030 mov->use_editlist = 0;
5033 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5034 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
5035 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
5037 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
5038 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
5040 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
5041 * if the latter is set that's enough and omit_tfhd_offset doesn't
5042 * add anything extra on top of that. */
5043 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
5044 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5045 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
5047 if (mov->frag_interleave &&
5048 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
5049 av_log(s, AV_LOG_ERROR,
5050 "Sample interleaving in fragments is mutually exclusive with "
5051 "omit_tfhd_offset and separate_moof\n");
5052 return AVERROR(EINVAL);
5055 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
5056 * is enabled, we don't support non-seekable output at all. */
5057 if (!s->pb->seekable &&
5058 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
5059 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
5060 return AVERROR(EINVAL);
5063 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5064 if ((ret = mov_write_identification(pb, s)) < 0)
5068 mov->nb_streams = s->nb_streams;
5069 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
5070 mov->chapter_track = mov->nb_streams++;
5072 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5073 /* Add hint tracks for each audio and video stream */
5074 hint_track = mov->nb_streams;
5075 for (i = 0; i < s->nb_streams; i++) {
5076 AVStream *st = s->streams[i];
5077 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5078 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5084 if (mov->mode == MODE_MOV) {
5085 tmcd_track = mov->nb_streams;
5087 /* +1 tmcd track for each video stream with a timecode */
5088 for (i = 0; i < s->nb_streams; i++) {
5089 AVStream *st = s->streams[i];
5090 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
5091 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
5092 mov->nb_meta_tmcd++;
5095 /* check if there is already a tmcd track to remux */
5096 if (mov->nb_meta_tmcd) {
5097 for (i = 0; i < s->nb_streams; i++) {
5098 AVStream *st = s->streams[i];
5099 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
5100 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
5101 "so timecode metadata are now ignored\n");
5102 mov->nb_meta_tmcd = 0;
5107 mov->nb_streams += mov->nb_meta_tmcd;
5110 // Reserve an extra stream for chapters for the case where chapters
5111 // are written in the trailer
5112 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
5114 return AVERROR(ENOMEM);
5116 for (i = 0; i < s->nb_streams; i++) {
5117 AVStream *st= s->streams[i];
5118 MOVTrack *track= &mov->tracks[i];
5119 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
5122 track->enc = st->codec;
5123 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
5124 if (track->language < 0)
5125 track->language = 0;
5126 track->mode = mov->mode;
5127 track->tag = mov_find_codec_tag(s, track);
5129 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
5130 "codec not currently supported in container\n",
5131 avcodec_get_name(st->codec->codec_id), i);
5132 ret = AVERROR(EINVAL);
5135 /* If hinting of this track is enabled by a later hint track,
5136 * this is updated. */
5137 track->hint_track = -1;
5138 track->start_dts = AV_NOPTS_VALUE;
5139 track->start_cts = AV_NOPTS_VALUE;
5140 track->end_pts = AV_NOPTS_VALUE;
5141 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5142 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
5143 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
5144 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
5145 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
5146 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
5147 ret = AVERROR(EINVAL);
5150 track->height = track->tag >> 24 == 'n' ? 486 : 576;
5152 if (mov->video_track_timescale) {
5153 track->timescale = mov->video_track_timescale;
5155 track->timescale = st->time_base.den;
5156 while(track->timescale < 10000)
5157 track->timescale *= 2;
5159 if (st->codec->width > 65535 || st->codec->height > 65535) {
5160 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
5161 ret = AVERROR(EINVAL);
5164 if (track->mode == MODE_MOV && track->timescale > 100000)
5165 av_log(s, AV_LOG_WARNING,
5166 "WARNING codec timebase is very high. If duration is too long,\n"
5167 "file may not be playable by quicktime. Specify a shorter timebase\n"
5168 "or choose different container.\n");
5169 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5170 track->timescale = st->codec->sample_rate;
5171 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
5172 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
5173 track->audio_vbr = 1;
5174 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
5175 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
5176 st->codec->codec_id == AV_CODEC_ID_ILBC){
5177 if (!st->codec->block_align) {
5178 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
5179 ret = AVERROR(EINVAL);
5182 track->sample_size = st->codec->block_align;
5183 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
5184 track->audio_vbr = 1;
5186 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
5188 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
5189 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
5190 track->audio_vbr = 1;
5192 if (track->mode != MODE_MOV &&
5193 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
5194 if (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
5195 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
5196 i, track->enc->sample_rate);
5197 ret = AVERROR(EINVAL);
5200 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
5201 i, track->enc->sample_rate);
5204 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
5205 track->timescale = st->time_base.den;
5206 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
5207 track->timescale = st->time_base.den;
5209 track->timescale = MOV_TIMESCALE;
5212 track->height = st->codec->height;
5213 /* The ism specific timescale isn't mandatory, but is assumed by
5214 * some tools, such as mp4split. */
5215 if (mov->mode == MODE_ISM)
5216 track->timescale = 10000000;
5218 avpriv_set_pts_info(st, 64, 1, track->timescale);
5220 /* copy extradata if it exists */
5221 if (st->codec->extradata_size) {
5222 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
5223 mov_create_dvd_sub_decoder_specific_info(track, st);
5224 else if (!TAG_IS_AVCI(track->tag) && st->codec->codec_id != AV_CODEC_ID_DNXHD) {
5225 track->vos_len = st->codec->extradata_size;
5226 track->vos_data = av_malloc(track->vos_len);
5227 if (!track->vos_data) {
5228 ret = AVERROR(ENOMEM);
5231 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
5236 for (i = 0; i < s->nb_streams; i++) {
5238 AVStream *st= s->streams[i];
5239 MOVTrack *track= &mov->tracks[i];
5241 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5242 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
5245 for (j = 0; j < s->nb_streams; j++) {
5246 AVStream *stj= s->streams[j];
5247 MOVTrack *trackj= &mov->tracks[j];
5251 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
5252 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
5253 trackj->language != track->language ||
5254 trackj->tag != track->tag
5257 track->multichannel_as_mono++;
5264 if (mov->reserved_moov_size){
5265 mov->reserved_header_pos = avio_tell(pb);
5266 if (mov->reserved_moov_size > 0)
5267 avio_skip(pb, mov->reserved_moov_size);
5270 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5271 /* If no fragmentation options have been set, set a default. */
5272 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
5273 FF_MOV_FLAG_FRAG_CUSTOM)) &&
5274 !mov->max_fragment_duration && !mov->max_fragment_size)
5275 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
5277 if (mov->flags & FF_MOV_FLAG_FASTSTART)
5278 mov->reserved_header_pos = avio_tell(pb);
5279 mov_write_mdat_tag(pb, mov);
5282 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0)) {
5283 mov->time = ff_iso8601_to_unix_time(t->value);
5284 if (mov->time < 0) {
5285 av_log(s, AV_LOG_WARNING, "Failed to parse creation_time %s\n", t->value);
5290 mov->time += 0x7C25B080; // 1970 based -> 1904 based
5292 if (mov->chapter_track)
5293 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5296 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
5297 /* Initialize the hint tracks for each audio and video stream */
5298 for (i = 0; i < s->nb_streams; i++) {
5299 AVStream *st = s->streams[i];
5300 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
5301 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
5302 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
5309 if (mov->nb_meta_tmcd) {
5310 /* Initialize the tmcd tracks */
5311 for (i = 0; i < s->nb_streams; i++) {
5312 AVStream *st = s->streams[i];
5315 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
5317 t = av_dict_get(st->metadata, "timecode", NULL, 0);
5320 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
5329 if (mov->flags & FF_MOV_FLAG_ISML)
5330 mov_write_isml_manifest(pb, mov);
5332 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
5333 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
5334 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
5337 mov->moov_written = 1;
5338 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5339 mov->reserved_header_pos = avio_tell(pb);
5348 static int get_moov_size(AVFormatContext *s)
5351 AVIOContext *moov_buf;
5352 MOVMuxContext *mov = s->priv_data;
5354 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
5356 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
5358 return ffio_close_null_buf(moov_buf);
5361 static int get_sidx_size(AVFormatContext *s)
5365 MOVMuxContext *mov = s->priv_data;
5367 if ((ret = ffio_open_null_buf(&buf)) < 0)
5369 mov_write_sidx_tags(buf, mov, -1, 0);
5370 return ffio_close_null_buf(buf);
5374 * This function gets the moov size if moved to the top of the file: the chunk
5375 * offset table can switch between stco (32-bit entries) to co64 (64-bit
5376 * entries) when the moov is moved to the beginning, so the size of the moov
5377 * would change. It also updates the chunk offset tables.
5379 static int compute_moov_size(AVFormatContext *s)
5381 int i, moov_size, moov_size2;
5382 MOVMuxContext *mov = s->priv_data;
5384 moov_size = get_moov_size(s);
5388 for (i = 0; i < mov->nb_streams; i++)
5389 mov->tracks[i].data_offset += moov_size;
5391 moov_size2 = get_moov_size(s);
5395 /* if the size changed, we just switched from stco to co64 and need to
5396 * update the offsets */
5397 if (moov_size2 != moov_size)
5398 for (i = 0; i < mov->nb_streams; i++)
5399 mov->tracks[i].data_offset += moov_size2 - moov_size;
5404 static int compute_sidx_size(AVFormatContext *s)
5407 MOVMuxContext *mov = s->priv_data;
5409 sidx_size = get_sidx_size(s);
5413 for (i = 0; i < mov->nb_streams; i++)
5414 mov->tracks[i].data_offset += sidx_size;
5419 static int shift_data(AVFormatContext *s)
5421 int ret = 0, moov_size;
5422 MOVMuxContext *mov = s->priv_data;
5423 int64_t pos, pos_end = avio_tell(s->pb);
5424 uint8_t *buf, *read_buf[2];
5425 int read_buf_id = 0;
5427 AVIOContext *read_pb;
5429 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5430 moov_size = compute_sidx_size(s);
5432 moov_size = compute_moov_size(s);
5436 buf = av_malloc(moov_size * 2);
5438 return AVERROR(ENOMEM);
5440 read_buf[1] = buf + moov_size;
5442 /* Shift the data: the AVIO context of the output can only be used for
5443 * writing, so we re-open the same output, but for reading. It also avoids
5444 * a read/seek/write/seek back and forth. */
5446 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
5448 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
5449 "the second pass (faststart)\n", s->filename);
5453 /* mark the end of the shift to up to the last data we wrote, and get ready
5455 pos_end = avio_tell(s->pb);
5456 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
5458 /* start reading at where the new moov will be placed */
5459 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
5460 pos = avio_tell(read_pb);
5462 #define READ_BLOCK do { \
5463 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
5467 /* shift data by chunk of at most moov_size */
5472 n = read_size[read_buf_id];
5475 avio_write(s->pb, read_buf[read_buf_id], n);
5477 } while (pos < pos_end);
5478 avio_close(read_pb);
5485 static int mov_write_trailer(AVFormatContext *s)
5487 MOVMuxContext *mov = s->priv_data;
5488 AVIOContext *pb = s->pb;
5494 * Before actually writing the trailer, make sure that there are no
5495 * dangling subtitles, that need a terminating sample.
5497 for (i = 0; i < mov->nb_streams; i++) {
5498 MOVTrack *trk = &mov->tracks[i];
5499 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
5500 !trk->last_sample_is_subtitle_end) {
5501 mov_write_subtitle_end_packet(s, i, trk->track_duration);
5502 trk->last_sample_is_subtitle_end = 1;
5506 // If there were no chapters when the header was written, but there
5507 // are chapters now, write them in the trailer. This only works
5508 // when we are not doing fragments.
5509 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5510 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
5511 mov->chapter_track = mov->nb_streams++;
5512 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
5517 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
5518 moov_pos = avio_tell(pb);
5520 /* Write size of mdat tag */
5521 if (mov->mdat_size + 8 <= UINT32_MAX) {
5522 avio_seek(pb, mov->mdat_pos, SEEK_SET);
5523 avio_wb32(pb, mov->mdat_size + 8);
5525 /* overwrite 'wide' placeholder atom */
5526 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
5527 /* special value: real atom size will be 64 bit value after
5530 ffio_wfourcc(pb, "mdat");
5531 avio_wb64(pb, mov->mdat_size + 16);
5533 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
5535 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
5536 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
5537 res = shift_data(s);
5539 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5540 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5543 } else if (mov->reserved_moov_size > 0) {
5545 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5547 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
5549 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
5550 res = AVERROR(EINVAL);
5553 avio_wb32(pb, size);
5554 ffio_wfourcc(pb, "free");
5555 ffio_fill(pb, 0, size - 8);
5556 avio_seek(pb, moov_pos, SEEK_SET);
5558 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
5563 mov_auto_flush_fragment(s, 1);
5564 for (i = 0; i < mov->nb_streams; i++)
5565 mov->tracks[i].data_offset = 0;
5566 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
5567 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
5568 res = shift_data(s);
5570 int64_t end = avio_tell(pb);
5571 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
5572 mov_write_sidx_tags(pb, mov, -1, 0);
5573 avio_seek(pb, end, SEEK_SET);
5574 mov_write_mfra_tag(pb, mov);
5577 mov_write_mfra_tag(pb, mov);
5587 #if CONFIG_MOV_MUXER
5589 AVOutputFormat ff_mov_muxer = {
5591 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5592 .extensions = "mov",
5593 .priv_data_size = sizeof(MOVMuxContext),
5594 .audio_codec = AV_CODEC_ID_AAC,
5595 .video_codec = CONFIG_LIBX264_ENCODER ?
5596 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5597 .write_header = mov_write_header,
5598 .write_packet = mov_write_packet,
5599 .write_trailer = mov_write_trailer,
5600 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5601 .codec_tag = (const AVCodecTag* const []){
5602 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5604 .priv_class = &mov_muxer_class,
5607 #if CONFIG_TGP_MUXER
5609 AVOutputFormat ff_tgp_muxer = {
5611 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5612 .extensions = "3gp",
5613 .priv_data_size = sizeof(MOVMuxContext),
5614 .audio_codec = AV_CODEC_ID_AMR_NB,
5615 .video_codec = AV_CODEC_ID_H263,
5616 .write_header = mov_write_header,
5617 .write_packet = mov_write_packet,
5618 .write_trailer = mov_write_trailer,
5619 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5620 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5621 .priv_class = &tgp_muxer_class,
5624 #if CONFIG_MP4_MUXER
5626 AVOutputFormat ff_mp4_muxer = {
5628 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5629 .mime_type = "video/mp4",
5630 .extensions = "mp4",
5631 .priv_data_size = sizeof(MOVMuxContext),
5632 .audio_codec = AV_CODEC_ID_AAC,
5633 .video_codec = CONFIG_LIBX264_ENCODER ?
5634 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5635 .write_header = mov_write_header,
5636 .write_packet = mov_write_packet,
5637 .write_trailer = mov_write_trailer,
5638 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5639 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5640 .priv_class = &mp4_muxer_class,
5643 #if CONFIG_PSP_MUXER
5645 AVOutputFormat ff_psp_muxer = {
5647 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5648 .extensions = "mp4,psp",
5649 .priv_data_size = sizeof(MOVMuxContext),
5650 .audio_codec = AV_CODEC_ID_AAC,
5651 .video_codec = CONFIG_LIBX264_ENCODER ?
5652 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5653 .write_header = mov_write_header,
5654 .write_packet = mov_write_packet,
5655 .write_trailer = mov_write_trailer,
5656 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5657 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5658 .priv_class = &psp_muxer_class,
5661 #if CONFIG_TG2_MUXER
5663 AVOutputFormat ff_tg2_muxer = {
5665 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5666 .extensions = "3g2",
5667 .priv_data_size = sizeof(MOVMuxContext),
5668 .audio_codec = AV_CODEC_ID_AMR_NB,
5669 .video_codec = AV_CODEC_ID_H263,
5670 .write_header = mov_write_header,
5671 .write_packet = mov_write_packet,
5672 .write_trailer = mov_write_trailer,
5673 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5674 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5675 .priv_class = &tg2_muxer_class,
5678 #if CONFIG_IPOD_MUXER
5680 AVOutputFormat ff_ipod_muxer = {
5682 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5683 .mime_type = "video/mp4",
5684 .extensions = "m4v,m4a",
5685 .priv_data_size = sizeof(MOVMuxContext),
5686 .audio_codec = AV_CODEC_ID_AAC,
5687 .video_codec = AV_CODEC_ID_H264,
5688 .write_header = mov_write_header,
5689 .write_packet = mov_write_packet,
5690 .write_trailer = mov_write_trailer,
5691 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5692 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5693 .priv_class = &ipod_muxer_class,
5696 #if CONFIG_ISMV_MUXER
5698 AVOutputFormat ff_ismv_muxer = {
5700 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5701 .mime_type = "video/mp4",
5702 .extensions = "ismv,isma",
5703 .priv_data_size = sizeof(MOVMuxContext),
5704 .audio_codec = AV_CODEC_ID_AAC,
5705 .video_codec = AV_CODEC_ID_H264,
5706 .write_header = mov_write_header,
5707 .write_packet = mov_write_packet,
5708 .write_trailer = mov_write_trailer,
5709 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5710 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5711 .priv_class = &ismv_muxer_class,
5714 #if CONFIG_F4V_MUXER
5716 AVOutputFormat ff_f4v_muxer = {
5718 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5719 .mime_type = "application/f4v",
5720 .extensions = "f4v",
5721 .priv_data_size = sizeof(MOVMuxContext),
5722 .audio_codec = AV_CODEC_ID_AAC,
5723 .video_codec = AV_CODEC_ID_H264,
5724 .write_header = mov_write_header,
5725 .write_packet = mov_write_packet,
5726 .write_trailer = mov_write_trailer,
5727 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5728 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5729 .priv_class = &f4v_muxer_class,