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/opt.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/pixdesc.h"
46 #include "libavutil/timecode.h"
54 static const AVOption options[] = {
55 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "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" },
57 { "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 },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 { "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" },
64 { "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" },
65 { "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" },
66 { "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" },
67 { "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" },
68 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
69 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "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},
72 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
73 { "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},
74 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
75 { "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},
76 { "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},
77 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
78 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
82 #define MOV_CLASS(flavor)\
83 static const AVClass flavor ## _muxer_class = {\
84 .class_name = #flavor " muxer",\
85 .item_name = av_default_item_name,\
87 .version = LIBAVUTIL_VERSION_INT,\
90 static int get_moov_size(AVFormatContext *s);
92 static int utf8len(const uint8_t *b)
97 GET_UTF8(val, *b++, return -1;)
103 //FIXME support 64 bit variant with wide placeholders
104 static int64_t update_size(AVIOContext *pb, int64_t pos)
106 int64_t curpos = avio_tell(pb);
107 avio_seek(pb, pos, SEEK_SET);
108 avio_wb32(pb, curpos - pos); /* rewrite size */
109 avio_seek(pb, curpos, SEEK_SET);
114 static int co64_required(const MOVTrack *track)
116 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
121 /* Chunk offset atom */
122 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
125 int mode64 = co64_required(track); // use 32 bit size variant if possible
126 int64_t pos = avio_tell(pb);
127 avio_wb32(pb, 0); /* size */
129 ffio_wfourcc(pb, "co64");
131 ffio_wfourcc(pb, "stco");
132 avio_wb32(pb, 0); /* version & flags */
133 avio_wb32(pb, track->chunkCount); /* entry count */
134 for (i = 0; i < track->entry; i++) {
135 if (!track->cluster[i].chunkNum)
138 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
140 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
142 return update_size(pb, pos);
145 /* Sample size atom */
146 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
149 int i, j, entries = 0, tst = -1, oldtst = -1;
151 int64_t pos = avio_tell(pb);
152 avio_wb32(pb, 0); /* size */
153 ffio_wfourcc(pb, "stsz");
154 avio_wb32(pb, 0); /* version & flags */
156 for (i = 0; i < track->entry; i++) {
157 tst = track->cluster[i].size / track->cluster[i].entries;
158 if (oldtst != -1 && tst != oldtst)
161 entries += track->cluster[i].entries;
163 if (equalChunks && track->entry) {
164 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
165 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
166 avio_wb32(pb, sSize); // sample size
167 avio_wb32(pb, entries); // sample count
169 avio_wb32(pb, 0); // sample size
170 avio_wb32(pb, entries); // sample count
171 for (i = 0; i < track->entry; i++) {
172 for (j = 0; j < track->cluster[i].entries; j++) {
173 avio_wb32(pb, track->cluster[i].size /
174 track->cluster[i].entries);
178 return update_size(pb, pos);
181 /* Sample to chunk atom */
182 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
184 int index = 0, oldval = -1, i;
185 int64_t entryPos, curpos;
187 int64_t pos = avio_tell(pb);
188 avio_wb32(pb, 0); /* size */
189 ffio_wfourcc(pb, "stsc");
190 avio_wb32(pb, 0); // version & flags
191 entryPos = avio_tell(pb);
192 avio_wb32(pb, track->chunkCount); // entry count
193 for (i = 0; i < track->entry; i++) {
194 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
195 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
196 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
197 avio_wb32(pb, 0x1); // sample description index
198 oldval = track->cluster[i].samples_in_chunk;
202 curpos = avio_tell(pb);
203 avio_seek(pb, entryPos, SEEK_SET);
204 avio_wb32(pb, index); // rewrite size
205 avio_seek(pb, curpos, SEEK_SET);
207 return update_size(pb, pos);
210 /* Sync sample atom */
211 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
213 int64_t curpos, entryPos;
215 int64_t pos = avio_tell(pb);
216 avio_wb32(pb, 0); // size
217 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
218 avio_wb32(pb, 0); // version & flags
219 entryPos = avio_tell(pb);
220 avio_wb32(pb, track->entry); // entry count
221 for (i = 0; i < track->entry; i++) {
222 if (track->cluster[i].flags & flag) {
223 avio_wb32(pb, i + 1);
227 curpos = avio_tell(pb);
228 avio_seek(pb, entryPos, SEEK_SET);
229 avio_wb32(pb, index); // rewrite size
230 avio_seek(pb, curpos, SEEK_SET);
231 return update_size(pb, pos);
234 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
236 avio_wb32(pb, 0x11); /* size */
237 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
238 else ffio_wfourcc(pb, "damr");
239 ffio_wfourcc(pb, "FFMP");
240 avio_w8(pb, 0); /* decoder version */
242 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
243 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
244 avio_w8(pb, 0x01); /* Frames per sample */
248 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
253 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
255 if (track->vos_len < 7)
259 ffio_wfourcc(pb, "dac3");
261 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
262 fscod = get_bits(&gbc, 2);
263 frmsizecod = get_bits(&gbc, 6);
264 bsid = get_bits(&gbc, 5);
265 bsmod = get_bits(&gbc, 3);
266 acmod = get_bits(&gbc, 3);
268 skip_bits(&gbc, 2); // dsurmod
270 if ((acmod & 1) && acmod != 1)
271 skip_bits(&gbc, 2); // cmixlev
273 skip_bits(&gbc, 2); // surmixlev
275 lfeon = get_bits1(&gbc);
277 init_put_bits(&pbc, buf, sizeof(buf));
278 put_bits(&pbc, 2, fscod);
279 put_bits(&pbc, 5, bsid);
280 put_bits(&pbc, 3, bsmod);
281 put_bits(&pbc, 3, acmod);
282 put_bits(&pbc, 1, lfeon);
283 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
284 put_bits(&pbc, 5, 0); // reserved
286 flush_put_bits(&pbc);
287 avio_write(pb, buf, sizeof(buf));
297 /* Layout of the EC3SpecificBox */
298 /* maximum bitrate */
300 /* number of independent substreams */
303 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
305 /* bit stream identification 5 bits */
307 /* one bit reserved */
308 /* audio service mixing (not supported yet) 1 bit */
309 /* bit stream mode 3 bits */
311 /* audio coding mode 3 bits */
313 /* sub woofer on 1 bit */
315 /* 3 bits reserved */
316 /* number of dependent substreams associated with this substream 4 bits */
318 /* channel locations of the dependent substream(s), if any, 9 bits */
320 /* if there is no dependent substream, then one bit reserved instead */
321 } substream[1]; /* TODO: support 8 independent substreams */
324 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
327 AC3HeaderInfo tmp, *hdr = &tmp;
328 struct eac3_info *info;
331 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
332 return AVERROR(ENOMEM);
333 info = track->eac3_priv;
335 init_get_bits(&gbc, pkt->data, pkt->size * 8);
336 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0) {
337 /* drop the packets until we see a good one */
339 av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
342 return AVERROR_INVALIDDATA;
345 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
346 num_blocks = hdr->num_blocks;
348 if (!info->ec3_done) {
349 /* AC-3 substream must be the first one */
350 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
351 return AVERROR(EINVAL);
353 /* this should always be the case, given that our AC-3 parser
354 * concatenates dependent frames to their independent parent */
355 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
356 /* substream ids must be incremental */
357 if (hdr->substreamid > info->num_ind_sub + 1)
358 return AVERROR(EINVAL);
360 if (hdr->substreamid == info->num_ind_sub + 1) {
361 //info->num_ind_sub++;
362 avpriv_request_sample(track->enc, "Multiple independent substreams");
363 return AVERROR_PATCHWELCOME;
364 } else if (hdr->substreamid < info->num_ind_sub ||
365 hdr->substreamid == 0 && info->substream[0].bsid) {
371 /* fill the info needed for the "dec3" atom */
372 info->substream[hdr->substreamid].fscod = hdr->sr_code;
373 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
374 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
375 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
376 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
378 /* Parse dependent substream(s), if any */
379 if (pkt->size != hdr->frame_size) {
380 int cumul_size = hdr->frame_size;
381 int parent = hdr->substreamid;
383 while (cumul_size != pkt->size) {
385 init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
386 if (avpriv_ac3_parse_header2(&gbc, &hdr) < 0)
387 return AVERROR_INVALIDDATA;
388 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
389 return AVERROR(EINVAL);
390 cumul_size += hdr->frame_size;
391 info->substream[parent].num_dep_sub++;
393 /* header is parsed up to lfeon, but custom channel map may be needed */
396 /* skip volume control params */
397 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
398 skip_bits(&gbc, 5); // skip dialog normalization
399 if (get_bits1(&gbc)) {
400 skip_bits(&gbc, 8); // skip compression gain word
403 /* get the dependent stream channel map, if exists */
405 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
407 info->substream[parent].chan_loc |= hdr->channel_mode;
413 if (!info->num_blocks && num_blocks == 6)
415 else if (info->num_blocks + num_blocks > 6)
416 return AVERROR_INVALIDDATA;
418 if (!info->num_blocks) {
420 if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
422 info->num_blocks = num_blocks;
426 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
428 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
429 info->num_blocks += num_blocks;
430 info->pkt.duration += pkt->duration;
431 if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
433 if (info->num_blocks != 6)
436 if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
438 av_free_packet(&info->pkt);
439 info->num_blocks = 0;
445 static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
449 struct eac3_info *info;
452 if (!track->eac3_priv)
453 return AVERROR(EINVAL);
455 info = track->eac3_priv;
456 size = 2 + 4 * (info->num_ind_sub + 1);
457 buf = av_malloc(size);
459 size = AVERROR(ENOMEM);
463 init_put_bits(&pbc, buf, size);
464 put_bits(&pbc, 13, info->data_rate);
465 put_bits(&pbc, 3, info->num_ind_sub);
466 for (i = 0; i <= info->num_ind_sub; i++) {
467 put_bits(&pbc, 2, info->substream[i].fscod);
468 put_bits(&pbc, 5, info->substream[i].bsid);
469 put_bits(&pbc, 1, 0); /* reserved */
470 put_bits(&pbc, 1, 0); /* asvc */
471 put_bits(&pbc, 3, info->substream[i].bsmod);
472 put_bits(&pbc, 3, info->substream[i].acmod);
473 put_bits(&pbc, 1, info->substream[i].lfeon);
474 put_bits(&pbc, 5, 0); /* reserved */
475 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
476 if (!info->substream[i].num_dep_sub) {
477 put_bits(&pbc, 1, 0); /* reserved */
480 put_bits(&pbc, 9, info->substream[i].chan_loc);
483 flush_put_bits(&pbc);
485 avio_wb32(pb, size + 8);
486 ffio_wfourcc(pb, "dec3");
487 avio_write(pb, buf, size);
492 av_free_packet(&info->pkt);
493 av_freep(&track->eac3_priv);
499 * This function writes extradata "as is".
500 * Extradata must be formatted like a valid atom (with size and tag).
502 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
504 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
505 return track->enc->extradata_size;
508 static int mov_write_enda_tag(AVIOContext *pb)
511 ffio_wfourcc(pb, "enda");
512 avio_wb16(pb, 1); /* little endian */
516 static int mov_write_enda_tag_be(AVIOContext *pb)
519 ffio_wfourcc(pb, "enda");
520 avio_wb16(pb, 0); /* big endian */
524 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
529 avio_w8(pb, (size >> (7 * i)) | 0x80);
530 avio_w8(pb, size & 0x7F);
533 static unsigned compute_avg_bitrate(MOVTrack *track)
537 if (!track->track_duration)
539 for (i = 0; i < track->entry; i++)
540 size += track->cluster[i].size;
541 return size * 8 * track->timescale / track->track_duration;
544 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
546 int64_t pos = avio_tell(pb);
547 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
548 unsigned avg_bitrate;
550 avio_wb32(pb, 0); // size
551 ffio_wfourcc(pb, "esds");
552 avio_wb32(pb, 0); // Version
555 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
556 avio_wb16(pb, track->track_id);
557 avio_w8(pb, 0x00); // flags (= no flags)
559 // DecoderConfig descriptor
560 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
562 // Object type indication
563 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
564 track->enc->codec_id == AV_CODEC_ID_MP3) &&
565 track->enc->sample_rate > 24000)
566 avio_w8(pb, 0x6B); // 11172-3
568 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
570 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
571 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
572 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
573 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
574 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
575 avio_w8(pb, 0x15); // flags (= Audiostream)
577 avio_w8(pb, 0x11); // flags (= Visualstream)
579 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
581 avg_bitrate = compute_avg_bitrate(track);
582 // maxbitrate (FIXME should be max rate in any 1 sec window)
583 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
584 avio_wb32(pb, avg_bitrate);
586 if (track->vos_len) {
587 // DecoderSpecific info descriptor
588 put_descr(pb, 0x05, track->vos_len);
589 avio_write(pb, track->vos_data, track->vos_len);
593 put_descr(pb, 0x06, 1);
595 return update_size(pb, pos);
598 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
600 return codec_id == AV_CODEC_ID_PCM_S24LE ||
601 codec_id == AV_CODEC_ID_PCM_S32LE ||
602 codec_id == AV_CODEC_ID_PCM_F32LE ||
603 codec_id == AV_CODEC_ID_PCM_F64LE;
606 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
608 return codec_id == AV_CODEC_ID_PCM_S24BE ||
609 codec_id == AV_CODEC_ID_PCM_S32BE ||
610 codec_id == AV_CODEC_ID_PCM_F32BE ||
611 codec_id == AV_CODEC_ID_PCM_F64BE;
614 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
617 int64_t pos = avio_tell(pb);
619 avio_wl32(pb, track->tag); // store it byteswapped
620 track->enc->codec_tag = av_bswap16(track->tag >> 16);
621 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
623 return update_size(pb, pos);
626 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
629 int64_t pos = avio_tell(pb);
631 ffio_wfourcc(pb, "wfex");
632 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
634 return update_size(pb, pos);
637 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
639 uint32_t layout_tag, bitmap;
640 int64_t pos = avio_tell(pb);
642 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
643 track->enc->channel_layout,
646 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
647 "lack of channel information\n");
651 if (track->multichannel_as_mono)
654 avio_wb32(pb, 0); // Size
655 ffio_wfourcc(pb, "chan"); // Type
656 avio_w8(pb, 0); // Version
657 avio_wb24(pb, 0); // Flags
658 avio_wb32(pb, layout_tag); // mChannelLayoutTag
659 avio_wb32(pb, bitmap); // mChannelBitmap
660 avio_wb32(pb, 0); // mNumberChannelDescriptions
662 return update_size(pb, pos);
665 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
667 int64_t pos = avio_tell(pb);
669 avio_wb32(pb, 0); /* size */
670 ffio_wfourcc(pb, "wave");
672 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
673 avio_wb32(pb, 12); /* size */
674 ffio_wfourcc(pb, "frma");
675 avio_wl32(pb, track->tag);
678 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
679 /* useless atom needed by mplayer, ipod, not needed by quicktime */
680 avio_wb32(pb, 12); /* size */
681 ffio_wfourcc(pb, "mp4a");
683 mov_write_esds_tag(pb, track);
684 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
685 mov_write_enda_tag(pb);
686 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
687 mov_write_enda_tag_be(pb);
688 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
689 mov_write_amr_tag(pb, track);
690 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
691 mov_write_ac3_tag(pb, track);
692 } else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
693 mov_write_eac3_tag(pb, track);
694 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
695 track->enc->codec_id == AV_CODEC_ID_QDM2) {
696 mov_write_extradata_tag(pb, track);
697 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
698 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
699 mov_write_ms_tag(pb, track);
702 avio_wb32(pb, 8); /* size */
703 avio_wb32(pb, 0); /* null tag */
705 return update_size(pb, pos);
708 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
711 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
712 int unescaped_size, seq_found = 0;
713 int level = 0, interlace = 0;
714 int packet_seq = track->vc1_info.packet_seq;
715 int packet_entry = track->vc1_info.packet_entry;
716 int slices = track->vc1_info.slices;
719 if (track->start_dts == AV_NOPTS_VALUE) {
720 /* No packets written yet, vc1_info isn't authoritative yet. */
721 /* Assume inline sequence and entry headers. This will be
722 * overwritten at the end if the file is seekable. */
723 packet_seq = packet_entry = 1;
726 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
728 return AVERROR(ENOMEM);
729 start = find_next_marker(track->vos_data, end);
730 for (next = start; next < end; start = next) {
733 next = find_next_marker(start + 4, end);
734 size = next - start - 4;
737 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
738 init_get_bits(&gb, unescaped, 8 * unescaped_size);
739 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
740 int profile = get_bits(&gb, 2);
741 if (profile != PROFILE_ADVANCED) {
743 return AVERROR(ENOSYS);
746 level = get_bits(&gb, 3);
747 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
749 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
750 skip_bits(&gb, 1); /* broadcast */
751 interlace = get_bits1(&gb);
752 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
757 return AVERROR(ENOSYS);
760 init_put_bits(&pbc, buf, 7);
761 /* VC1DecSpecStruc */
762 put_bits(&pbc, 4, 12); /* profile - advanced */
763 put_bits(&pbc, 3, level);
764 put_bits(&pbc, 1, 0); /* reserved */
765 /* VC1AdvDecSpecStruc */
766 put_bits(&pbc, 3, level);
767 put_bits(&pbc, 1, 0); /* cbr */
768 put_bits(&pbc, 6, 0); /* reserved */
769 put_bits(&pbc, 1, !interlace); /* no interlace */
770 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
771 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
772 put_bits(&pbc, 1, !slices); /* no slice code */
773 put_bits(&pbc, 1, 0); /* no bframe */
774 put_bits(&pbc, 1, 0); /* reserved */
777 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
778 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
780 put_bits32(&pbc, 0xffffffff);
782 flush_put_bits(&pbc);
789 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
791 uint8_t buf[7] = { 0 };
794 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
797 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
798 ffio_wfourcc(pb, "dvc1");
799 track->vc1_info.struct_offset = avio_tell(pb);
800 avio_write(pb, buf, sizeof(buf));
801 avio_write(pb, track->vos_data, track->vos_len);
806 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
808 avio_wb32(pb, track->vos_len + 8);
809 ffio_wfourcc(pb, "glbl");
810 avio_write(pb, track->vos_data, track->vos_len);
811 return 8 + track->vos_len;
815 * Compute flags for 'lpcm' tag.
816 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
818 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
821 case AV_CODEC_ID_PCM_F32BE:
822 case AV_CODEC_ID_PCM_F64BE:
824 case AV_CODEC_ID_PCM_F32LE:
825 case AV_CODEC_ID_PCM_F64LE:
827 case AV_CODEC_ID_PCM_U8:
829 case AV_CODEC_ID_PCM_S16BE:
830 case AV_CODEC_ID_PCM_S24BE:
831 case AV_CODEC_ID_PCM_S32BE:
833 case AV_CODEC_ID_PCM_S8:
834 case AV_CODEC_ID_PCM_S16LE:
835 case AV_CODEC_ID_PCM_S24LE:
836 case AV_CODEC_ID_PCM_S32LE:
843 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
847 if (cluster_idx >= track->entry)
850 if (cluster_idx + 1 == track->entry)
851 next_dts = track->track_duration + track->start_dts;
853 next_dts = track->cluster[cluster_idx + 1].dts;
855 next_dts -= track->cluster[cluster_idx].dts;
857 av_assert0(next_dts >= 0);
858 av_assert0(next_dts <= INT_MAX);
863 static int get_samples_per_packet(MOVTrack *track)
865 int i, first_duration;
867 // return track->enc->frame_size;
869 /* use 1 for raw PCM */
870 if (!track->audio_vbr)
873 /* check to see if duration is constant for all clusters */
876 first_duration = get_cluster_duration(track, 0);
877 for (i = 1; i < track->entry; i++) {
878 if (get_cluster_duration(track, i) != first_duration)
881 return first_duration;
884 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
886 int64_t pos = avio_tell(pb);
888 uint32_t tag = track->tag;
890 if (track->mode == MODE_MOV) {
891 if (track->timescale > UINT16_MAX) {
892 if (mov_get_lpcm_flags(track->enc->codec_id))
893 tag = AV_RL32("lpcm");
895 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
896 mov_pcm_be_gt16(track->enc->codec_id) ||
897 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
898 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
899 track->enc->codec_id == AV_CODEC_ID_QDM2) {
904 avio_wb32(pb, 0); /* size */
905 avio_wl32(pb, tag); // store it byteswapped
906 avio_wb32(pb, 0); /* Reserved */
907 avio_wb16(pb, 0); /* Reserved */
908 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
910 /* SoundDescription */
911 avio_wb16(pb, version); /* Version */
912 avio_wb16(pb, 0); /* Revision level */
913 avio_wb32(pb, 0); /* Reserved */
918 avio_wb16(pb, 0xfffe);
920 avio_wb32(pb, 0x00010000);
922 avio_wb64(pb, av_double2int(track->enc->sample_rate));
923 avio_wb32(pb, track->enc->channels);
924 avio_wb32(pb, 0x7F000000);
925 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
926 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
927 avio_wb32(pb, track->sample_size);
928 avio_wb32(pb, get_samples_per_packet(track));
930 if (track->mode == MODE_MOV) {
931 avio_wb16(pb, track->enc->channels);
932 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
933 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
934 avio_wb16(pb, 8); /* bits per sample */
935 else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
936 avio_wb16(pb, track->enc->bits_per_coded_sample);
939 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
940 } else { /* reserved for mp4/3gp */
946 avio_wb16(pb, 0); /* packet size (= 0) */
947 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
948 track->enc->sample_rate : 0);
949 avio_wb16(pb, 0); /* Reserved */
952 if (version == 1) { /* SoundDescription V1 extended info */
953 if (mov_pcm_le_gt16(track->enc->codec_id) ||
954 mov_pcm_be_gt16(track->enc->codec_id))
955 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
957 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
958 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
959 avio_wb32(pb, track->sample_size); /* Bytes per frame */
960 avio_wb32(pb, 2); /* Bytes per sample */
963 if (track->mode == MODE_MOV &&
964 (track->enc->codec_id == AV_CODEC_ID_AAC ||
965 track->enc->codec_id == AV_CODEC_ID_AC3 ||
966 track->enc->codec_id == AV_CODEC_ID_EAC3 ||
967 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
968 track->enc->codec_id == AV_CODEC_ID_ALAC ||
969 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
970 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
971 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
972 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
973 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
974 mov_write_wave_tag(pb, track);
975 else if (track->tag == MKTAG('m','p','4','a'))
976 mov_write_esds_tag(pb, track);
977 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
978 mov_write_amr_tag(pb, track);
979 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
980 mov_write_ac3_tag(pb, track);
981 else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
982 mov_write_eac3_tag(pb, track);
983 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
984 mov_write_extradata_tag(pb, track);
985 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
986 mov_write_wfex_tag(pb, track);
987 else if (track->vos_len > 0)
988 mov_write_glbl_tag(pb, track);
990 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
991 mov_write_chan_tag(pb, track);
993 return update_size(pb, pos);
996 static int mov_write_d263_tag(AVIOContext *pb)
998 avio_wb32(pb, 0xf); /* size */
999 ffio_wfourcc(pb, "d263");
1000 ffio_wfourcc(pb, "FFMP");
1001 avio_w8(pb, 0); /* decoder version */
1002 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1003 avio_w8(pb, 0xa); /* level */
1004 avio_w8(pb, 0); /* profile */
1008 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1010 int64_t pos = avio_tell(pb);
1013 ffio_wfourcc(pb, "avcC");
1014 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1015 return update_size(pb, pos);
1018 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1020 int64_t pos = avio_tell(pb);
1023 ffio_wfourcc(pb, "hvcC");
1024 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1025 return update_size(pb, pos);
1028 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1029 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1032 avio_wb32(pb, 24); /* size */
1033 ffio_wfourcc(pb, "ACLR");
1034 ffio_wfourcc(pb, "ACLR");
1035 ffio_wfourcc(pb, "0001");
1036 if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
1037 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1038 } else { /* Full range (0-255) */
1039 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1041 avio_wb32(pb, 0); /* unknown */
1043 avio_wb32(pb, 24); /* size */
1044 ffio_wfourcc(pb, "APRG");
1045 ffio_wfourcc(pb, "APRG");
1046 ffio_wfourcc(pb, "0001");
1047 avio_wb32(pb, 1); /* unknown */
1048 avio_wb32(pb, 0); /* unknown */
1050 avio_wb32(pb, 120); /* size */
1051 ffio_wfourcc(pb, "ARES");
1052 ffio_wfourcc(pb, "ARES");
1053 ffio_wfourcc(pb, "0001");
1054 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
1055 avio_wb32(pb, track->enc->width);
1056 /* values below are based on samples created with quicktime and avid codecs */
1057 if (track->vos_data[5] & 2) { // interlaced
1058 avio_wb32(pb, track->enc->height / 2);
1059 avio_wb32(pb, 2); /* unknown */
1060 avio_wb32(pb, 0); /* unknown */
1061 avio_wb32(pb, 4); /* unknown */
1063 avio_wb32(pb, track->enc->height);
1064 avio_wb32(pb, 1); /* unknown */
1065 avio_wb32(pb, 0); /* unknown */
1066 if (track->enc->height == 1080)
1067 avio_wb32(pb, 5); /* unknown */
1069 avio_wb32(pb, 6); /* unknown */
1072 for (i = 0; i < 10; i++)
1075 /* extra padding for stsd needed */
1080 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1082 int tag = track->enc->codec_tag;
1084 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
1087 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
1088 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
1089 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
1090 else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
1091 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
1092 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
1093 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
1094 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
1095 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
1096 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
1101 static const AVCodecTag codec_ipod_tags[] = {
1102 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1103 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1104 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1105 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
1106 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
1107 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1108 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
1109 { AV_CODEC_ID_NONE, 0 },
1112 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1114 int tag = track->enc->codec_tag;
1116 // keep original tag for subs, ipod supports both formats
1117 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
1118 (tag == MKTAG('t', 'x', '3', 'g') ||
1119 tag == MKTAG('t', 'e', 'x', 't'))))
1120 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
1122 if (!av_match_ext(s->filename, "m4a") &&
1123 !av_match_ext(s->filename, "m4b") &&
1124 !av_match_ext(s->filename, "m4v"))
1125 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
1126 "Quicktime/Ipod might not play the file\n");
1131 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1135 if (track->enc->width == 720) { /* SD */
1136 if (track->enc->height == 480) { /* NTSC */
1137 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1138 else tag = MKTAG('d','v','c',' ');
1139 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1140 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1141 else tag = MKTAG('d','v','p','p');
1142 } else if (track->enc->height == 720) { /* HD 720 line */
1143 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1144 else tag = MKTAG('d','v','h','p');
1145 } else if (track->enc->height == 1080) { /* HD 1080 line */
1146 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1147 else tag = MKTAG('d','v','h','6');
1149 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1156 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1158 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
1159 /* if the codec time base makes no sense, try to fallback on stream frame rate */
1160 if (av_timecode_check_frame_rate(rate) < 0) {
1161 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1162 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1163 rate = st->avg_frame_rate;
1169 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1171 int tag = track->enc->codec_tag;
1172 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1173 AVStream *st = track->st;
1174 int rate = av_q2d(find_fps(s, st));
1177 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1179 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
1180 if (track->enc->width == 1280 && track->enc->height == 720) {
1182 if (rate == 24) tag = MKTAG('x','d','v','4');
1183 else if (rate == 25) tag = MKTAG('x','d','v','5');
1184 else if (rate == 30) tag = MKTAG('x','d','v','1');
1185 else if (rate == 50) tag = MKTAG('x','d','v','a');
1186 else if (rate == 60) tag = MKTAG('x','d','v','9');
1188 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1190 if (rate == 24) tag = MKTAG('x','d','v','6');
1191 else if (rate == 25) tag = MKTAG('x','d','v','7');
1192 else if (rate == 30) tag = MKTAG('x','d','v','8');
1194 if (rate == 25) tag = MKTAG('x','d','v','3');
1195 else if (rate == 30) tag = MKTAG('x','d','v','2');
1197 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1199 if (rate == 24) tag = MKTAG('x','d','v','d');
1200 else if (rate == 25) tag = MKTAG('x','d','v','e');
1201 else if (rate == 30) tag = MKTAG('x','d','v','f');
1203 if (rate == 25) tag = MKTAG('x','d','v','c');
1204 else if (rate == 30) tag = MKTAG('x','d','v','b');
1207 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1208 if (track->enc->width == 1280 && track->enc->height == 720) {
1210 if (rate == 24) tag = MKTAG('x','d','5','4');
1211 else if (rate == 25) tag = MKTAG('x','d','5','5');
1212 else if (rate == 30) tag = MKTAG('x','d','5','1');
1213 else if (rate == 50) tag = MKTAG('x','d','5','a');
1214 else if (rate == 60) tag = MKTAG('x','d','5','9');
1216 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1218 if (rate == 24) tag = MKTAG('x','d','5','d');
1219 else if (rate == 25) tag = MKTAG('x','d','5','e');
1220 else if (rate == 30) tag = MKTAG('x','d','5','f');
1222 if (rate == 25) tag = MKTAG('x','d','5','c');
1223 else if (rate == 30) tag = MKTAG('x','d','5','b');
1231 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1233 int tag = track->enc->codec_tag;
1234 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1235 AVStream *st = track->st;
1236 int rate = av_q2d(find_fps(s, st));
1239 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1241 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
1242 if (track->enc->width == 960 && track->enc->height == 720) {
1244 if (rate == 24) tag = MKTAG('a','i','5','p');
1245 else if (rate == 25) tag = MKTAG('a','i','5','q');
1246 else if (rate == 30) tag = MKTAG('a','i','5','p');
1247 else if (rate == 50) tag = MKTAG('a','i','5','q');
1248 else if (rate == 60) tag = MKTAG('a','i','5','p');
1250 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
1252 if (rate == 24) tag = MKTAG('a','i','5','3');
1253 else if (rate == 25) tag = MKTAG('a','i','5','2');
1254 else if (rate == 30) tag = MKTAG('a','i','5','3');
1256 if (rate == 50) tag = MKTAG('a','i','5','5');
1257 else if (rate == 60) tag = MKTAG('a','i','5','6');
1260 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
1261 if (track->enc->width == 1280 && track->enc->height == 720) {
1263 if (rate == 24) tag = MKTAG('a','i','1','p');
1264 else if (rate == 25) tag = MKTAG('a','i','1','q');
1265 else if (rate == 30) tag = MKTAG('a','i','1','p');
1266 else if (rate == 50) tag = MKTAG('a','i','1','q');
1267 else if (rate == 60) tag = MKTAG('a','i','1','p');
1269 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
1271 if (rate == 24) tag = MKTAG('a','i','1','3');
1272 else if (rate == 25) tag = MKTAG('a','i','1','2');
1273 else if (rate == 30) tag = MKTAG('a','i','1','3');
1275 if (rate == 25) tag = MKTAG('a','i','1','5');
1276 else if (rate == 50) tag = MKTAG('a','i','1','5');
1277 else if (rate == 60) tag = MKTAG('a','i','1','6');
1285 static const struct {
1286 enum AVPixelFormat pix_fmt;
1289 } mov_pix_fmt_tags[] = {
1290 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1291 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1292 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1293 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1294 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1295 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1296 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1297 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1298 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1299 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1300 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1301 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1302 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1303 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1304 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1307 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1309 int tag = track->enc->codec_tag;
1311 enum AVPixelFormat pix_fmt;
1313 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1314 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1315 tag = mov_pix_fmt_tags[i].tag;
1316 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1317 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1322 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1323 track->enc->bits_per_coded_sample);
1324 if (tag == MKTAG('r','a','w',' ') &&
1325 track->enc->pix_fmt != pix_fmt &&
1326 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1327 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1328 av_get_pix_fmt_name(track->enc->pix_fmt));
1332 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1334 int tag = track->enc->codec_tag;
1336 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1337 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1338 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1339 track->enc->codec_id == AV_CODEC_ID_H263 ||
1340 track->enc->codec_id == AV_CODEC_ID_H264 ||
1341 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1342 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1343 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1344 tag = mov_get_dv_codec_tag(s, track);
1345 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1346 tag = mov_get_rawvideo_codec_tag(s, track);
1347 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1348 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1349 else if (track->enc->codec_id == AV_CODEC_ID_H264)
1350 tag = mov_get_h264_codec_tag(s, track);
1351 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1352 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1353 if (!tag) { // if no mac fcc found, try with Microsoft tags
1354 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1356 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1357 "the file may be unplayable!\n");
1359 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1360 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1361 if (!tag) { // if no mac fcc found, try with Microsoft tags
1362 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1364 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1365 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1366 "the file may be unplayable!\n");
1369 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1370 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1376 static const AVCodecTag codec_3gp_tags[] = {
1377 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1378 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1379 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1380 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1381 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1382 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1383 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1384 { AV_CODEC_ID_NONE, 0 },
1387 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1388 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1389 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1390 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1391 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1392 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1393 { AV_CODEC_ID_NONE, 0 },
1396 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1400 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1401 tag = mp4_get_codec_tag(s, track);
1402 else if (track->mode == MODE_ISM) {
1403 tag = mp4_get_codec_tag(s, track);
1404 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1405 tag = MKTAG('w', 'm', 'a', ' ');
1406 } else if (track->mode == MODE_IPOD)
1407 tag = ipod_get_codec_tag(s, track);
1408 else if (track->mode & MODE_3GP)
1409 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1410 else if (track->mode == MODE_F4V)
1411 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1413 tag = mov_get_codec_tag(s, track);
1418 /** Write uuid atom.
1419 * Needed to make file play in iPods running newest firmware
1420 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1422 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1425 ffio_wfourcc(pb, "uuid");
1426 avio_wb32(pb, 0x6b6840f2);
1427 avio_wb32(pb, 0x5f244fc5);
1428 avio_wb32(pb, 0xba39a51b);
1429 avio_wb32(pb, 0xcf0323f3);
1434 static const uint16_t fiel_data[] = {
1435 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1438 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1440 unsigned mov_field_order = 0;
1441 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1442 mov_field_order = fiel_data[track->enc->field_order];
1446 ffio_wfourcc(pb, "fiel");
1447 avio_wb16(pb, mov_field_order);
1451 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1453 int64_t pos = avio_tell(pb);
1454 avio_wb32(pb, 0); /* size */
1455 avio_wl32(pb, track->tag); // store it byteswapped
1456 avio_wb32(pb, 0); /* Reserved */
1457 avio_wb16(pb, 0); /* Reserved */
1458 avio_wb16(pb, 1); /* Data-reference index */
1460 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1461 mov_write_esds_tag(pb, track);
1462 else if (track->enc->extradata_size)
1463 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1465 return update_size(pb, pos);
1468 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1471 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1472 track->enc->sample_aspect_ratio.den, INT_MAX);
1475 ffio_wfourcc(pb, "pasp");
1476 avio_wb32(pb, sar.num);
1477 avio_wb32(pb, sar.den);
1481 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1483 AVDictionaryEntry *encoder;
1484 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1485 || (track->enc->width == 1440 && track->enc->height == 1080)
1486 || (track->enc->width == 1920 && track->enc->height == 1080);
1488 if (track->mode == MODE_MOV &&
1489 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1490 av_strlcpy(compressor_name, encoder->value, 32);
1491 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1492 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1493 AVStream *st = track->st;
1494 int rate = av_q2d(find_fps(NULL, st));
1495 av_strlcatf(compressor_name, len, "XDCAM");
1496 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1497 av_strlcatf(compressor_name, len, " HD422");
1498 } else if(track->enc->width == 1440) {
1499 av_strlcatf(compressor_name, len, " HD");
1501 av_strlcatf(compressor_name, len, " EX");
1503 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1505 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1509 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1511 int64_t pos = avio_tell(pb);
1512 char compressor_name[32] = { 0 };
1514 avio_wb32(pb, 0); /* size */
1515 avio_wl32(pb, track->tag); // store it byteswapped
1516 avio_wb32(pb, 0); /* Reserved */
1517 avio_wb16(pb, 0); /* Reserved */
1518 avio_wb16(pb, 1); /* Data-reference index */
1520 avio_wb16(pb, 0); /* Codec stream version */
1521 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1522 if (track->mode == MODE_MOV) {
1523 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1524 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1525 avio_wb32(pb, 0); /* Temporal Quality */
1526 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1528 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1529 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1532 avio_wb32(pb, 0); /* Reserved */
1533 avio_wb32(pb, 0); /* Reserved */
1534 avio_wb32(pb, 0); /* Reserved */
1536 avio_wb16(pb, track->enc->width); /* Video width */
1537 avio_wb16(pb, track->height); /* Video height */
1538 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1539 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1540 avio_wb32(pb, 0); /* Data size (= 0) */
1541 avio_wb16(pb, 1); /* Frame count (= 1) */
1543 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1544 find_compressor(compressor_name, 32, track);
1545 avio_w8(pb, strlen(compressor_name));
1546 avio_write(pb, compressor_name, 31);
1548 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1549 avio_wb16(pb, track->enc->bits_per_coded_sample);
1551 avio_wb16(pb, 0x18); /* Reserved */
1552 avio_wb16(pb, 0xffff); /* Reserved */
1553 if (track->tag == MKTAG('m','p','4','v'))
1554 mov_write_esds_tag(pb, track);
1555 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1556 mov_write_d263_tag(pb);
1557 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1558 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1559 mov_write_extradata_tag(pb, track);
1561 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1562 mov_write_avid_tag(pb, track);
1563 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1564 mov_write_hvcc_tag(pb, track);
1565 else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
1566 mov_write_avcc_tag(pb, track);
1567 if (track->mode == MODE_IPOD)
1568 mov_write_uuid_tag_ipod(pb);
1569 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1570 mov_write_dvc1_tag(pb, track);
1571 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1572 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1573 /* Don't write any potential extradata here - the cropping
1574 * is signalled via the normal width/height fields. */
1575 } else if (track->vos_len > 0)
1576 mov_write_glbl_tag(pb, track);
1578 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1579 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1580 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1581 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1582 mov_write_fiel_tag(pb, track);
1584 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1585 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1586 mov_write_pasp_tag(pb, track);
1589 return update_size(pb, pos);
1592 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1594 int64_t pos = avio_tell(pb);
1595 avio_wb32(pb, 0); /* size */
1596 ffio_wfourcc(pb, "rtp ");
1597 avio_wb32(pb, 0); /* Reserved */
1598 avio_wb16(pb, 0); /* Reserved */
1599 avio_wb16(pb, 1); /* Data-reference index */
1601 avio_wb16(pb, 1); /* Hint track version */
1602 avio_wb16(pb, 1); /* Highest compatible version */
1603 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1605 avio_wb32(pb, 12); /* size */
1606 ffio_wfourcc(pb, "tims");
1607 avio_wb32(pb, track->timescale);
1609 return update_size(pb, pos);
1612 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
1614 uint64_t str_size =strlen(reel_name);
1615 int64_t pos = avio_tell(pb);
1617 if (str_size >= UINT16_MAX){
1618 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
1620 return AVERROR(EINVAL);
1623 avio_wb32(pb, 0); /* size */
1624 ffio_wfourcc(pb, "name"); /* Data format */
1625 avio_wb16(pb, str_size); /* string size */
1626 avio_wb16(pb, track->language); /* langcode */
1627 avio_write(pb, reel_name, str_size); /* reel name */
1628 return update_size(pb,pos);
1631 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1633 int64_t pos = avio_tell(pb);
1635 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1636 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1637 AVDictionaryEntry *t = NULL;
1639 if (nb_frames > 255) {
1640 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1641 return AVERROR(EINVAL);
1644 avio_wb32(pb, 0); /* size */
1645 ffio_wfourcc(pb, "tmcd"); /* Data format */
1646 avio_wb32(pb, 0); /* Reserved */
1647 avio_wb32(pb, 1); /* Data reference index */
1648 avio_wb32(pb, 0); /* Flags */
1649 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1650 avio_wb32(pb, track->timescale); /* Timescale */
1651 avio_wb32(pb, frame_duration); /* Frame duration */
1652 avio_w8(pb, nb_frames); /* Number of frames */
1653 avio_w8(pb, 0); /* Reserved */
1656 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
1658 if (t && utf8len(t->value))
1659 mov_write_source_reference_tag(pb, track, t->value);
1661 avio_wb16(pb, 0); /* zero size */
1664 avio_wb32(pb, 0); /* size */
1665 ffio_wfourcc(pb, "tmcd"); /* Data format */
1666 avio_wb32(pb, 0); /* Reserved */
1667 avio_wb32(pb, 1); /* Data reference index */
1668 if (track->enc->extradata_size)
1669 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1671 return update_size(pb, pos);
1674 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1676 int64_t pos = avio_tell(pb);
1677 avio_wb32(pb, 0); /* size */
1678 ffio_wfourcc(pb, "stsd");
1679 avio_wb32(pb, 0); /* version & flags */
1680 avio_wb32(pb, 1); /* entry count */
1681 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1682 mov_write_video_tag(pb, track);
1683 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1684 mov_write_audio_tag(pb, track);
1685 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1686 mov_write_subtitle_tag(pb, track);
1687 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1688 mov_write_rtp_tag(pb, track);
1689 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1690 mov_write_tmcd_tag(pb, track);
1691 return update_size(pb, pos);
1694 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1696 MOVStts *ctts_entries;
1697 uint32_t entries = 0;
1701 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1702 ctts_entries[0].count = 1;
1703 ctts_entries[0].duration = track->cluster[0].cts;
1704 for (i = 1; i < track->entry; i++) {
1705 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1706 ctts_entries[entries].count++; /* compress */
1709 ctts_entries[entries].duration = track->cluster[i].cts;
1710 ctts_entries[entries].count = 1;
1713 entries++; /* last one */
1714 atom_size = 16 + (entries * 8);
1715 avio_wb32(pb, atom_size); /* size */
1716 ffio_wfourcc(pb, "ctts");
1717 avio_wb32(pb, 0); /* version & flags */
1718 avio_wb32(pb, entries); /* entry count */
1719 for (i = 0; i < entries; i++) {
1720 avio_wb32(pb, ctts_entries[i].count);
1721 avio_wb32(pb, ctts_entries[i].duration);
1723 av_free(ctts_entries);
1727 /* Time to sample atom */
1728 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1730 MOVStts *stts_entries;
1731 uint32_t entries = -1;
1735 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1736 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1737 stts_entries[0].count = track->sample_count;
1738 stts_entries[0].duration = 1;
1741 stts_entries = track->entry ?
1742 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1744 for (i = 0; i < track->entry; i++) {
1745 int duration = get_cluster_duration(track, i);
1746 if (i && duration == stts_entries[entries].duration) {
1747 stts_entries[entries].count++; /* compress */
1750 stts_entries[entries].duration = duration;
1751 stts_entries[entries].count = 1;
1754 entries++; /* last one */
1756 atom_size = 16 + (entries * 8);
1757 avio_wb32(pb, atom_size); /* size */
1758 ffio_wfourcc(pb, "stts");
1759 avio_wb32(pb, 0); /* version & flags */
1760 avio_wb32(pb, entries); /* entry count */
1761 for (i = 0; i < entries; i++) {
1762 avio_wb32(pb, stts_entries[i].count);
1763 avio_wb32(pb, stts_entries[i].duration);
1765 av_free(stts_entries);
1769 static int mov_write_dref_tag(AVIOContext *pb)
1771 avio_wb32(pb, 28); /* size */
1772 ffio_wfourcc(pb, "dref");
1773 avio_wb32(pb, 0); /* version & flags */
1774 avio_wb32(pb, 1); /* entry count */
1776 avio_wb32(pb, 0xc); /* size */
1777 //FIXME add the alis and rsrc atom
1778 ffio_wfourcc(pb, "url ");
1779 avio_wb32(pb, 1); /* version & flags */
1784 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1786 int64_t pos = avio_tell(pb);
1787 avio_wb32(pb, 0); /* size */
1788 ffio_wfourcc(pb, "stbl");
1789 mov_write_stsd_tag(pb, track);
1790 mov_write_stts_tag(pb, track);
1791 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1792 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1793 track->has_keyframes && track->has_keyframes < track->entry)
1794 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1795 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1796 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1797 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1798 track->flags & MOV_TRACK_CTTS)
1799 mov_write_ctts_tag(pb, track);
1800 mov_write_stsc_tag(pb, track);
1801 mov_write_stsz_tag(pb, track);
1802 mov_write_stco_tag(pb, track);
1803 return update_size(pb, pos);
1806 static int mov_write_dinf_tag(AVIOContext *pb)
1808 int64_t pos = avio_tell(pb);
1809 avio_wb32(pb, 0); /* size */
1810 ffio_wfourcc(pb, "dinf");
1811 mov_write_dref_tag(pb);
1812 return update_size(pb, pos);
1815 static int mov_write_nmhd_tag(AVIOContext *pb)
1818 ffio_wfourcc(pb, "nmhd");
1823 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1825 int64_t pos = avio_tell(pb);
1826 const char *font = "Lucida Grande";
1827 avio_wb32(pb, 0); /* size */
1828 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1829 avio_wb32(pb, 0); /* version & flags */
1830 avio_wb16(pb, 0); /* text font */
1831 avio_wb16(pb, 0); /* text face */
1832 avio_wb16(pb, 12); /* text size */
1833 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1834 avio_wb16(pb, 0x0000); /* text color (red) */
1835 avio_wb16(pb, 0x0000); /* text color (green) */
1836 avio_wb16(pb, 0x0000); /* text color (blue) */
1837 avio_wb16(pb, 0xffff); /* background color (red) */
1838 avio_wb16(pb, 0xffff); /* background color (green) */
1839 avio_wb16(pb, 0xffff); /* background color (blue) */
1840 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1841 avio_write(pb, font, strlen(font)); /* font name */
1842 return update_size(pb, pos);
1845 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1847 int64_t pos = avio_tell(pb);
1848 avio_wb32(pb, 0); /* size */
1849 ffio_wfourcc(pb, "gmhd");
1850 avio_wb32(pb, 0x18); /* gmin size */
1851 ffio_wfourcc(pb, "gmin");/* generic media info */
1852 avio_wb32(pb, 0); /* version & flags */
1853 avio_wb16(pb, 0x40); /* graphics mode = */
1854 avio_wb16(pb, 0x8000); /* opColor (r?) */
1855 avio_wb16(pb, 0x8000); /* opColor (g?) */
1856 avio_wb16(pb, 0x8000); /* opColor (b?) */
1857 avio_wb16(pb, 0); /* balance */
1858 avio_wb16(pb, 0); /* reserved */
1861 * This special text atom is required for
1862 * Apple Quicktime chapters. The contents
1863 * don't appear to be documented, so the
1864 * bytes are copied verbatim.
1866 if (track->tag != MKTAG('c','6','0','8')) {
1867 avio_wb32(pb, 0x2C); /* size */
1868 ffio_wfourcc(pb, "text");
1869 avio_wb16(pb, 0x01);
1870 avio_wb32(pb, 0x00);
1871 avio_wb32(pb, 0x00);
1872 avio_wb32(pb, 0x00);
1873 avio_wb32(pb, 0x01);
1874 avio_wb32(pb, 0x00);
1875 avio_wb32(pb, 0x00);
1876 avio_wb32(pb, 0x00);
1877 avio_wb32(pb, 0x00004000);
1878 avio_wb16(pb, 0x0000);
1881 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1882 int64_t tmcd_pos = avio_tell(pb);
1883 avio_wb32(pb, 0); /* size */
1884 ffio_wfourcc(pb, "tmcd");
1885 mov_write_tcmi_tag(pb, track);
1886 update_size(pb, tmcd_pos);
1888 return update_size(pb, pos);
1891 static int mov_write_smhd_tag(AVIOContext *pb)
1893 avio_wb32(pb, 16); /* size */
1894 ffio_wfourcc(pb, "smhd");
1895 avio_wb32(pb, 0); /* version & flags */
1896 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1897 avio_wb16(pb, 0); /* reserved */
1901 static int mov_write_vmhd_tag(AVIOContext *pb)
1903 avio_wb32(pb, 0x14); /* size (always 0x14) */
1904 ffio_wfourcc(pb, "vmhd");
1905 avio_wb32(pb, 0x01); /* version & flags */
1906 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1910 static int is_clcp_track(MOVTrack *track)
1912 return track->tag == MKTAG('c','7','0','8') ||
1913 track->tag == MKTAG('c','6','0','8');
1916 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1918 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1919 int64_t pos = avio_tell(pb);
1923 descr = "DataHandler";
1926 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1927 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1929 descr = "VideoHandler";
1930 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1932 descr = "SoundHandler";
1933 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1934 if (is_clcp_track(track)) {
1936 descr = "ClosedCaptionHandler";
1938 if (track->tag == MKTAG('t','x','3','g')) {
1940 } else if (track->tag == MKTAG('m','p','4','s')) {
1945 descr = "SubtitleHandler";
1947 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1949 descr = "HintHandler";
1950 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1952 descr = "TimeCodeHandler";
1955 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1956 track->enc->codec_tag);
1958 av_log(track->enc, AV_LOG_WARNING,
1959 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1960 tag_buf, track->enc->codec_tag);
1963 // hdlr.name is used by some players to identify the content title
1964 // of the track. So if an alternate handler description is
1965 // specified, use it.
1966 AVDictionaryEntry *t;
1967 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1968 if (t && utf8len(t->value))
1973 avio_wb32(pb, 0); /* size */
1974 ffio_wfourcc(pb, "hdlr");
1975 avio_wb32(pb, 0); /* Version & flags */
1976 avio_write(pb, hdlr, 4); /* handler */
1977 ffio_wfourcc(pb, hdlr_type); /* handler type */
1978 avio_wb32(pb, 0); /* reserved */
1979 avio_wb32(pb, 0); /* reserved */
1980 avio_wb32(pb, 0); /* reserved */
1981 if (!track || track->mode == MODE_MOV)
1982 avio_w8(pb, strlen(descr)); /* pascal string */
1983 avio_write(pb, descr, strlen(descr)); /* handler description */
1984 if (track && track->mode != MODE_MOV)
1985 avio_w8(pb, 0); /* c string */
1986 return update_size(pb, pos);
1989 static int mov_write_hmhd_tag(AVIOContext *pb)
1991 /* This atom must be present, but leaving the values at zero
1992 * seems harmless. */
1993 avio_wb32(pb, 28); /* size */
1994 ffio_wfourcc(pb, "hmhd");
1995 avio_wb32(pb, 0); /* version, flags */
1996 avio_wb16(pb, 0); /* maxPDUsize */
1997 avio_wb16(pb, 0); /* avgPDUsize */
1998 avio_wb32(pb, 0); /* maxbitrate */
1999 avio_wb32(pb, 0); /* avgbitrate */
2000 avio_wb32(pb, 0); /* reserved */
2004 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
2006 int64_t pos = avio_tell(pb);
2007 avio_wb32(pb, 0); /* size */
2008 ffio_wfourcc(pb, "minf");
2009 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
2010 mov_write_vmhd_tag(pb);
2011 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2012 mov_write_smhd_tag(pb);
2013 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2014 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2015 mov_write_gmhd_tag(pb, track);
2017 mov_write_nmhd_tag(pb);
2019 } else if (track->tag == MKTAG('r','t','p',' ')) {
2020 mov_write_hmhd_tag(pb);
2021 } else if (track->tag == MKTAG('t','m','c','d')) {
2022 mov_write_gmhd_tag(pb, track);
2024 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
2025 mov_write_hdlr_tag(pb, NULL);
2026 mov_write_dinf_tag(pb);
2027 mov_write_stbl_tag(pb, track);
2028 return update_size(pb, pos);
2031 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2034 int version = track->track_duration < INT32_MAX ? 0 : 1;
2036 if (track->mode == MODE_ISM)
2039 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2040 ffio_wfourcc(pb, "mdhd");
2041 avio_w8(pb, version);
2042 avio_wb24(pb, 0); /* flags */
2044 avio_wb64(pb, track->time);
2045 avio_wb64(pb, track->time);
2047 avio_wb32(pb, track->time); /* creation time */
2048 avio_wb32(pb, track->time); /* modification time */
2050 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2051 if (!track->entry && mov->mode == MODE_ISM)
2052 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2053 else if (!track->entry)
2054 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2056 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2057 avio_wb16(pb, track->language); /* language */
2058 avio_wb16(pb, 0); /* reserved (quality) */
2060 if (version != 0 && track->mode == MODE_MOV) {
2061 av_log(NULL, AV_LOG_ERROR,
2062 "FATAL error, file duration too long for timebase, this file will not be\n"
2063 "playable with quicktime. Choose a different timebase or a different\n"
2064 "container format\n");
2070 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
2073 int64_t pos = avio_tell(pb);
2074 avio_wb32(pb, 0); /* size */
2075 ffio_wfourcc(pb, "mdia");
2076 mov_write_mdhd_tag(pb, mov, track);
2077 mov_write_hdlr_tag(pb, track);
2078 mov_write_minf_tag(pb, track);
2079 return update_size(pb, pos);
2082 /* transformation matrix
2086 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2087 int16_t d, int16_t tx, int16_t ty)
2089 avio_wb32(pb, a << 16); /* 16.16 format */
2090 avio_wb32(pb, b << 16); /* 16.16 format */
2091 avio_wb32(pb, 0); /* u in 2.30 format */
2092 avio_wb32(pb, c << 16); /* 16.16 format */
2093 avio_wb32(pb, d << 16); /* 16.16 format */
2094 avio_wb32(pb, 0); /* v in 2.30 format */
2095 avio_wb32(pb, tx << 16); /* 16.16 format */
2096 avio_wb32(pb, ty << 16); /* 16.16 format */
2097 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2100 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2101 MOVTrack *track, AVStream *st)
2103 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2104 track->timescale, AV_ROUND_UP);
2105 int version = duration < INT32_MAX ? 0 : 1;
2106 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2112 if (mov->per_stream_grouping)
2115 group = st->codec->codec_type;
2118 if (track->flags & MOV_TRACK_ENABLED)
2119 flags |= MOV_TKHD_FLAG_ENABLED;
2121 if (track->mode == MODE_ISM)
2124 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2125 ffio_wfourcc(pb, "tkhd");
2126 avio_w8(pb, version);
2127 avio_wb24(pb, flags);
2129 avio_wb64(pb, track->time);
2130 avio_wb64(pb, track->time);
2132 avio_wb32(pb, track->time); /* creation time */
2133 avio_wb32(pb, track->time); /* modification time */
2135 avio_wb32(pb, track->track_id); /* track-id */
2136 avio_wb32(pb, 0); /* reserved */
2137 if (!track->entry && mov->mode == MODE_ISM)
2138 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2139 else if (!track->entry)
2140 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2142 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2144 avio_wb32(pb, 0); /* reserved */
2145 avio_wb32(pb, 0); /* reserved */
2146 avio_wb16(pb, 0); /* layer */
2147 avio_wb16(pb, group); /* alternate group) */
2148 /* Volume, only for audio */
2149 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
2150 avio_wb16(pb, 0x0100);
2153 avio_wb16(pb, 0); /* reserved */
2155 /* Matrix structure */
2156 if (st && st->metadata) {
2157 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2158 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2160 if (rotation == 90) {
2161 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
2162 } else if (rotation == 180) {
2163 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
2164 } else if (rotation == 270) {
2165 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
2167 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2169 /* Track width and height, for visual only */
2170 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
2171 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2172 if (track->mode == MODE_MOV) {
2173 avio_wb32(pb, track->enc->width << 16);
2174 avio_wb32(pb, track->height << 16);
2176 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2177 if (!sample_aspect_ratio || track->height != track->enc->height)
2178 sample_aspect_ratio = 1;
2179 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
2180 avio_wb32(pb, track->height * 0x10000);
2189 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2191 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
2192 track->enc->sample_aspect_ratio.den);
2194 int64_t pos = avio_tell(pb);
2196 avio_wb32(pb, 0); /* size */
2197 ffio_wfourcc(pb, "tapt");
2200 ffio_wfourcc(pb, "clef");
2202 avio_wb32(pb, width << 16);
2203 avio_wb32(pb, track->enc->height << 16);
2206 ffio_wfourcc(pb, "prof");
2208 avio_wb32(pb, width << 16);
2209 avio_wb32(pb, track->enc->height << 16);
2212 ffio_wfourcc(pb, "enof");
2214 avio_wb32(pb, track->enc->width << 16);
2215 avio_wb32(pb, track->enc->height << 16);
2217 return update_size(pb, pos);
2220 // This box seems important for the psp playback ... without it the movie seems to hang
2221 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
2224 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
2225 track->timescale, AV_ROUND_UP);
2226 int version = duration < INT32_MAX ? 0 : 1;
2227 int entry_size, entry_count, size;
2228 int64_t delay, start_ct = track->cluster[0].cts;
2229 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
2230 track->timescale, AV_ROUND_DOWN);
2231 version |= delay < INT32_MAX ? 0 : 1;
2233 entry_size = (version == 1) ? 20 : 12;
2234 entry_count = 1 + (delay > 0);
2235 size = 24 + entry_count * entry_size;
2237 /* write the atom data */
2238 avio_wb32(pb, size);
2239 ffio_wfourcc(pb, "edts");
2240 avio_wb32(pb, size - 8);
2241 ffio_wfourcc(pb, "elst");
2242 avio_w8(pb, version);
2243 avio_wb24(pb, 0); /* flags */
2245 avio_wb32(pb, entry_count);
2246 if (delay > 0) { /* add an empty edit to delay presentation */
2247 /* In the positive delay case, the delay includes the cts
2248 * offset, and the second edit list entry below trims out
2249 * the same amount from the actual content. This makes sure
2250 * that the offsetted last sample is included in the edit
2251 * list duration as well. */
2253 avio_wb64(pb, delay);
2256 avio_wb32(pb, delay);
2259 avio_wb32(pb, 0x00010000);
2261 /* Avoid accidentally ending up with start_ct = -1 which has got a
2262 * special meaning. Normally start_ct should end up positive or zero
2263 * here, but use FFMIN in case dts is a a small positive integer
2264 * rounded to 0 when represented in MOV_TIMESCALE units. */
2265 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
2266 start_ct = -FFMIN(track->cluster[0].dts, 0);
2267 /* Note, this delay is calculated from the pts of the first sample,
2268 * ensuring that we don't reduce the duration for cases with
2273 /* For fragmented files, we don't know the full length yet. Setting
2274 * duration to 0 allows us to only specify the offset, including
2275 * the rest of the content (from all future fragments) without specifying
2276 * an explicit duration. */
2277 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2282 avio_wb64(pb, duration);
2283 avio_wb64(pb, start_ct);
2285 avio_wb32(pb, duration);
2286 avio_wb32(pb, start_ct);
2288 avio_wb32(pb, 0x00010000);
2292 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
2294 avio_wb32(pb, 20); // size
2295 ffio_wfourcc(pb, "tref");
2296 avio_wb32(pb, 12); // size (subatom)
2297 avio_wl32(pb, track->tref_tag);
2298 avio_wb32(pb, track->tref_id);
2302 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
2303 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
2305 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
2306 ffio_wfourcc(pb, "uuid");
2307 ffio_wfourcc(pb, "USMT");
2308 avio_wb32(pb, 0x21d24fce);
2309 avio_wb32(pb, 0xbb88695c);
2310 avio_wb32(pb, 0xfac9c740);
2311 avio_wb32(pb, 0x1c); // another size here!
2312 ffio_wfourcc(pb, "MTDT");
2313 avio_wb32(pb, 0x00010012);
2314 avio_wb32(pb, 0x0a);
2315 avio_wb32(pb, 0x55c40000);
2321 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
2323 AVFormatContext *ctx = track->rtp_ctx;
2324 char buf[1000] = "";
2327 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
2328 NULL, NULL, 0, 0, ctx);
2329 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
2332 avio_wb32(pb, len + 24);
2333 ffio_wfourcc(pb, "udta");
2334 avio_wb32(pb, len + 16);
2335 ffio_wfourcc(pb, "hnti");
2336 avio_wb32(pb, len + 8);
2337 ffio_wfourcc(pb, "sdp ");
2338 avio_write(pb, buf, len);
2342 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
2343 const char *tag, const char *str)
2345 int64_t pos = avio_tell(pb);
2346 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
2347 if (!t || !utf8len(t->value))
2350 avio_wb32(pb, 0); /* size */
2351 ffio_wfourcc(pb, tag); /* type */
2352 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
2353 return update_size(pb, pos);
2356 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2359 AVIOContext *pb_buf;
2363 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
2366 ret = avio_open_dyn_buf(&pb_buf);
2370 if (mov->mode & MODE_MP4)
2371 mov_write_track_metadata(pb_buf, st, "name", "title");
2373 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2374 avio_wb32(pb, size + 8);
2375 ffio_wfourcc(pb, "udta");
2376 avio_write(pb, buf, size);
2383 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2384 MOVTrack *track, AVStream *st)
2386 int64_t pos = avio_tell(pb);
2387 avio_wb32(pb, 0); /* size */
2388 ffio_wfourcc(pb, "trak");
2389 mov_write_tkhd_tag(pb, mov, track, st);
2391 av_assert2(mov->use_editlist >= 0);
2395 if (mov->use_editlist)
2396 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
2397 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
2398 av_log(mov->fc, AV_LOG_WARNING,
2399 "Not writing any edit list even though one would have been required\n");
2402 if (track->tref_tag)
2403 mov_write_tref_tag(pb, track);
2404 mov_write_mdia_tag(pb, mov, track);
2405 if (track->mode == MODE_PSP)
2406 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2407 if (track->tag == MKTAG('r','t','p',' '))
2408 mov_write_udta_sdp(pb, track);
2409 if (track->mode == MODE_MOV) {
2410 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2411 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2412 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2413 mov_write_tapt_tag(pb, track);
2416 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2417 mov_write_tapt_tag(pb, track);
2420 mov_write_track_udta_tag(pb, mov, st);
2421 return update_size(pb, pos);
2424 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2426 int i, has_audio = 0, has_video = 0;
2427 int64_t pos = avio_tell(pb);
2428 int audio_profile = mov->iods_audio_profile;
2429 int video_profile = mov->iods_video_profile;
2430 for (i = 0; i < mov->nb_streams; i++) {
2431 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
2432 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2433 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2436 if (audio_profile < 0)
2437 audio_profile = 0xFF - has_audio;
2438 if (video_profile < 0)
2439 video_profile = 0xFF - has_video;
2440 avio_wb32(pb, 0x0); /* size */
2441 ffio_wfourcc(pb, "iods");
2442 avio_wb32(pb, 0); /* version & flags */
2443 put_descr(pb, 0x10, 7);
2444 avio_wb16(pb, 0x004f);
2447 avio_w8(pb, audio_profile);
2448 avio_w8(pb, video_profile);
2450 return update_size(pb, pos);
2453 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2455 avio_wb32(pb, 0x20); /* size */
2456 ffio_wfourcc(pb, "trex");
2457 avio_wb32(pb, 0); /* version & flags */
2458 avio_wb32(pb, track->track_id); /* track ID */
2459 avio_wb32(pb, 1); /* default sample description index */
2460 avio_wb32(pb, 0); /* default sample duration */
2461 avio_wb32(pb, 0); /* default sample size */
2462 avio_wb32(pb, 0); /* default sample flags */
2466 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2468 int64_t pos = avio_tell(pb);
2470 avio_wb32(pb, 0x0); /* size */
2471 ffio_wfourcc(pb, "mvex");
2472 for (i = 0; i < mov->nb_streams; i++)
2473 mov_write_trex_tag(pb, &mov->tracks[i]);
2474 return update_size(pb, pos);
2477 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2479 int max_track_id = 1, i;
2480 int64_t max_track_len_temp, max_track_len = 0;
2483 for (i = 0; i < mov->nb_streams; i++) {
2484 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2485 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2487 mov->tracks[i].timescale,
2489 if (max_track_len < max_track_len_temp)
2490 max_track_len = max_track_len_temp;
2491 if (max_track_id < mov->tracks[i].track_id)
2492 max_track_id = mov->tracks[i].track_id;
2496 version = max_track_len < UINT32_MAX ? 0 : 1;
2497 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2498 ffio_wfourcc(pb, "mvhd");
2499 avio_w8(pb, version);
2500 avio_wb24(pb, 0); /* flags */
2502 avio_wb64(pb, mov->time);
2503 avio_wb64(pb, mov->time);
2505 avio_wb32(pb, mov->time); /* creation time */
2506 avio_wb32(pb, mov->time); /* modification time */
2508 avio_wb32(pb, MOV_TIMESCALE);
2509 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2511 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2512 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2513 avio_wb16(pb, 0); /* reserved */
2514 avio_wb32(pb, 0); /* reserved */
2515 avio_wb32(pb, 0); /* reserved */
2517 /* Matrix structure */
2518 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2520 avio_wb32(pb, 0); /* reserved (preview time) */
2521 avio_wb32(pb, 0); /* reserved (preview duration) */
2522 avio_wb32(pb, 0); /* reserved (poster time) */
2523 avio_wb32(pb, 0); /* reserved (selection time) */
2524 avio_wb32(pb, 0); /* reserved (selection duration) */
2525 avio_wb32(pb, 0); /* reserved (current time) */
2526 avio_wb32(pb, max_track_id + 1); /* Next track id */
2530 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2533 avio_wb32(pb, 33); /* size */
2534 ffio_wfourcc(pb, "hdlr");
2537 ffio_wfourcc(pb, "mdir");
2538 ffio_wfourcc(pb, "appl");
2545 /* helper function to write a data tag with the specified string as data */
2546 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2549 int size = 16 + strlen(data);
2550 avio_wb32(pb, size); /* size */
2551 ffio_wfourcc(pb, "data");
2554 avio_write(pb, data, strlen(data));
2558 lang = ff_mov_iso639_to_lang("und", 1);
2559 avio_wb16(pb, strlen(data)); /* string length */
2560 avio_wb16(pb, lang);
2561 avio_write(pb, data, strlen(data));
2562 return strlen(data) + 4;
2566 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2567 const char *value, int lang, int long_style)
2570 if (value && value[0]) {
2571 int64_t pos = avio_tell(pb);
2572 avio_wb32(pb, 0); /* size */
2573 ffio_wfourcc(pb, name);
2574 mov_write_string_data_tag(pb, value, lang, long_style);
2575 size = update_size(pb, pos);
2580 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2581 const char *name, const char *tag,
2584 int l, lang = 0, len, len2;
2585 AVDictionaryEntry *t, *t2 = NULL;
2588 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2591 len = strlen(t->key);
2592 snprintf(tag2, sizeof(tag2), "%s-", tag);
2593 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2594 len2 = strlen(t2->key);
2595 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2596 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2601 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2604 /* iTunes bpm number */
2605 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2607 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2608 int size = 0, tmpo = t ? atoi(t->value) : 0;
2611 avio_wb32(pb, size);
2612 ffio_wfourcc(pb, "tmpo");
2613 avio_wb32(pb, size-8); /* size */
2614 ffio_wfourcc(pb, "data");
2615 avio_wb32(pb, 0x15); //type specifier
2617 avio_wb16(pb, tmpo); // data
2622 /* iTunes track or disc number */
2623 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2624 AVFormatContext *s, int disc)
2626 AVDictionaryEntry *t = av_dict_get(s->metadata,
2627 disc ? "disc" : "track",
2629 int size = 0, track = t ? atoi(t->value) : 0;
2632 char *slash = strchr(t->value, '/');
2634 tracks = atoi(slash + 1);
2635 avio_wb32(pb, 32); /* size */
2636 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2637 avio_wb32(pb, 24); /* size */
2638 ffio_wfourcc(pb, "data");
2639 avio_wb32(pb, 0); // 8 bytes empty
2641 avio_wb16(pb, 0); // empty
2642 avio_wb16(pb, track); // track / disc number
2643 avio_wb16(pb, tracks); // total track / disc number
2644 avio_wb16(pb, 0); // empty
2650 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2651 const char *name, const char *tag,
2654 AVDictionaryEntry *t = NULL;
2656 int size = 24 + len;
2658 if (len != 1 && len != 4)
2661 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2663 num = atoi(t->value);
2665 avio_wb32(pb, size);
2666 ffio_wfourcc(pb, name);
2667 avio_wb32(pb, size - 8);
2668 ffio_wfourcc(pb, "data");
2669 avio_wb32(pb, 0x15);
2671 if (len==4) avio_wb32(pb, num);
2672 else avio_w8 (pb, num);
2677 /* iTunes meta data list */
2678 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2681 int64_t pos = avio_tell(pb);
2682 avio_wb32(pb, 0); /* size */
2683 ffio_wfourcc(pb, "ilst");
2684 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2685 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2686 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2687 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2688 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2689 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2691 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2692 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2693 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2694 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2695 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2696 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2697 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2698 mov_write_string_metadata(s, pb, "desc", "description",1);
2699 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2700 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2701 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2702 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2703 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2704 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2705 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2706 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2707 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2708 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2709 mov_write_trkn_tag(pb, mov, s, 0); // track number
2710 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2711 mov_write_tmpo_tag(pb, s);
2712 return update_size(pb, pos);
2715 /* iTunes meta data tag */
2716 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2720 int64_t pos = avio_tell(pb);
2721 avio_wb32(pb, 0); /* size */
2722 ffio_wfourcc(pb, "meta");
2724 mov_write_itunes_hdlr_tag(pb, mov, s);
2725 mov_write_ilst_tag(pb, mov, s);
2726 size = update_size(pb, pos);
2730 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
2731 const char *name, const char *key)
2734 AVDictionaryEntry *t;
2736 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
2739 len = strlen(t->value);
2742 avio_wb32(pb, size);
2743 ffio_wfourcc(pb, name);
2744 avio_write(pb, t->value, len);
2750 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2754 GET_UTF8(val, *b++, return -1;)
2757 avio_wb16(pb, 0x00);
2761 static uint16_t language_code(const char *str)
2763 return (((str[0] - 0x60) & 0x1F) << 10) +
2764 (((str[1] - 0x60) & 0x1F) << 5) +
2765 (( str[2] - 0x60) & 0x1F);
2768 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2769 const char *tag, const char *str)
2771 int64_t pos = avio_tell(pb);
2772 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2773 if (!t || !utf8len(t->value))
2775 avio_wb32(pb, 0); /* size */
2776 ffio_wfourcc(pb, tag); /* type */
2777 avio_wb32(pb, 0); /* version + flags */
2778 if (!strcmp(tag, "yrrc"))
2779 avio_wb16(pb, atoi(t->value));
2781 avio_wb16(pb, language_code("eng")); /* language */
2782 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2783 if (!strcmp(tag, "albm") &&
2784 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2785 avio_w8(pb, atoi(t->value));
2787 return update_size(pb, pos);
2790 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2792 int64_t pos = avio_tell(pb);
2793 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2795 avio_wb32(pb, 0); // size
2796 ffio_wfourcc(pb, "chpl");
2797 avio_wb32(pb, 0x01000000); // version + flags
2798 avio_wb32(pb, 0); // unknown
2799 avio_w8(pb, nb_chapters);
2801 for (i = 0; i < nb_chapters; i++) {
2802 AVChapter *c = s->chapters[i];
2803 AVDictionaryEntry *t;
2804 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2806 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2807 int len = FFMIN(strlen(t->value), 255);
2809 avio_write(pb, t->value, len);
2813 return update_size(pb, pos);
2816 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2819 AVIOContext *pb_buf;
2823 ret = avio_open_dyn_buf(&pb_buf);
2827 if (mov->mode & MODE_3GP) {
2828 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2829 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2830 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2831 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2832 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2833 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2834 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2835 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2836 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2837 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2838 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2839 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2840 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2841 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2842 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2843 // currently ignored by mov.c
2844 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2845 // add support for libquicktime, this atom is also actually read by mov.c
2846 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2847 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2848 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2849 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
2851 /* iTunes meta data */
2852 mov_write_meta_tag(pb_buf, mov, s);
2855 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2856 mov_write_chpl_tag(pb_buf, s);
2858 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2859 avio_wb32(pb, size + 8);
2860 ffio_wfourcc(pb, "udta");
2861 avio_write(pb, buf, size);
2868 static void mov_write_psp_udta_tag(AVIOContext *pb,
2869 const char *str, const char *lang, int type)
2871 int len = utf8len(str) + 1;
2874 avio_wb16(pb, len * 2 + 10); /* size */
2875 avio_wb32(pb, type); /* type */
2876 avio_wb16(pb, language_code(lang)); /* language */
2877 avio_wb16(pb, 0x01); /* ? */
2878 ascii_to_wc(pb, str);
2881 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2883 MOVMuxContext *mov = s->priv_data;
2884 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2888 pos = avio_tell(pb);
2889 avio_wb32(pb, 0); /* size placeholder*/
2890 ffio_wfourcc(pb, "uuid");
2891 ffio_wfourcc(pb, "USMT");
2892 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2893 avio_wb32(pb, 0xbb88695c);
2894 avio_wb32(pb, 0xfac9c740);
2896 pos2 = avio_tell(pb);
2897 avio_wb32(pb, 0); /* size placeholder*/
2898 ffio_wfourcc(pb, "MTDT");
2902 avio_wb16(pb, 0x0C); /* size */
2903 avio_wb32(pb, 0x0B); /* type */
2904 avio_wb16(pb, language_code("und")); /* language */
2905 avio_wb16(pb, 0x0); /* ? */
2906 avio_wb16(pb, 0x021C); /* data */
2909 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2910 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2911 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2913 update_size(pb, pos2);
2914 return update_size(pb, pos);
2920 static void build_chunks(MOVTrack *trk)
2923 MOVIentry *chunk = &trk->cluster[0];
2924 uint64_t chunkSize = chunk->size;
2925 chunk->chunkNum = 1;
2926 if (trk->chunkCount)
2928 trk->chunkCount = 1;
2929 for (i = 1; i<trk->entry; i++){
2930 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2931 chunkSize + trk->cluster[i].size < (1<<20)){
2932 chunkSize += trk->cluster[i].size;
2933 chunk->samples_in_chunk += trk->cluster[i].entries;
2935 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2936 chunk=&trk->cluster[i];
2937 chunkSize = chunk->size;
2943 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2947 int64_t pos = avio_tell(pb);
2948 avio_wb32(pb, 0); /* size placeholder*/
2949 ffio_wfourcc(pb, "moov");
2951 for (i = 0; i < mov->nb_streams; i++) {
2952 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2955 mov->tracks[i].time = mov->time;
2956 mov->tracks[i].track_id = i + 1;
2958 if (mov->tracks[i].entry)
2959 build_chunks(&mov->tracks[i]);
2962 if (mov->chapter_track)
2963 for (i = 0; i < s->nb_streams; i++) {
2964 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2965 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2967 for (i = 0; i < mov->nb_streams; i++) {
2968 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2969 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2970 mov->tracks[i].tref_id =
2971 mov->tracks[mov->tracks[i].src_track].track_id;
2974 for (i = 0; i < mov->nb_streams; i++) {
2975 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2976 int src_trk = mov->tracks[i].src_track;
2977 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2978 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2979 //src_trk may have a different timescale than the tmcd track
2980 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2981 mov->tracks[i].timescale,
2982 mov->tracks[src_trk].timescale);
2986 mov_write_mvhd_tag(pb, mov);
2987 if (mov->mode != MODE_MOV && !mov->iods_skip)
2988 mov_write_iods_tag(pb, mov);
2989 for (i = 0; i < mov->nb_streams; i++) {
2990 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2991 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2994 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2995 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2997 if (mov->mode == MODE_PSP)
2998 mov_write_uuidusmt_tag(pb, s);
3000 mov_write_udta_tag(pb, mov, s);
3002 return update_size(pb, pos);
3005 static void param_write_int(AVIOContext *pb, const char *name, int value)
3007 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3010 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3012 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
3015 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
3018 len = FFMIN(sizeof(buf) / 2 - 1, len);
3019 ff_data_to_hex(buf, value, len, 0);
3020 buf[2 * len] = '\0';
3021 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
3024 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
3026 int64_t pos = avio_tell(pb);
3028 static const uint8_t uuid[] = {
3029 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
3030 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
3034 ffio_wfourcc(pb, "uuid");
3035 avio_write(pb, uuid, sizeof(uuid));
3038 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
3039 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
3040 avio_printf(pb, "<head>\n");
3042 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
3044 avio_printf(pb, "</head>\n");
3045 avio_printf(pb, "<body>\n");
3046 avio_printf(pb, "<switch>\n");
3047 for (i = 0; i < mov->nb_streams; i++) {
3048 MOVTrack *track = &mov->tracks[i];
3050 /* track->track_id is initialized in write_moov, and thus isn't known
3052 int track_id = i + 1;
3054 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3056 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
3061 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
3062 track->enc->bit_rate);
3063 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
3064 param_write_int(pb, "trackID", track_id);
3065 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
3066 if (track->enc->codec_id == AV_CODEC_ID_H264) {
3068 int size = track->enc->extradata_size;
3069 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
3071 param_write_hex(pb, "CodecPrivateData",
3072 ptr ? ptr : track->enc->extradata,
3076 param_write_string(pb, "FourCC", "H264");
3077 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
3078 param_write_string(pb, "FourCC", "WVC1");
3079 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3080 track->enc->extradata_size);
3082 param_write_int(pb, "MaxWidth", track->enc->width);
3083 param_write_int(pb, "MaxHeight", track->enc->height);
3084 param_write_int(pb, "DisplayWidth", track->enc->width);
3085 param_write_int(pb, "DisplayHeight", track->enc->height);
3087 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
3088 param_write_string(pb, "FourCC", "AACL");
3089 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
3090 param_write_string(pb, "FourCC", "WMAP");
3092 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
3093 track->enc->extradata_size);
3094 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
3095 track->enc->codec_id));
3096 param_write_int(pb, "Channels", track->enc->channels);
3097 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
3098 param_write_int(pb, "BitsPerSample", 16);
3099 param_write_int(pb, "PacketSize", track->enc->block_align ?
3100 track->enc->block_align : 4);
3102 avio_printf(pb, "</%s>\n", type);
3104 avio_printf(pb, "</switch>\n");
3105 avio_printf(pb, "</body>\n");
3106 avio_printf(pb, "</smil>\n");
3108 return update_size(pb, pos);
3111 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3114 ffio_wfourcc(pb, "mfhd");
3116 avio_wb32(pb, mov->fragments);
3120 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3121 MOVTrack *track, int64_t moof_offset)
3123 int64_t pos = avio_tell(pb);
3124 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3125 MOV_TFHD_BASE_DATA_OFFSET;
3126 if (!track->entry) {
3127 flags |= MOV_TFHD_DURATION_IS_EMPTY;
3129 flags |= MOV_TFHD_DEFAULT_FLAGS;
3131 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
3132 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3133 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
3134 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
3135 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
3138 /* Don't set a default sample size, the silverlight player refuses
3139 * to play files with that set. Don't set a default sample duration,
3140 * WMP freaks out if it is set. Don't set a base data offset, PIFF
3141 * file format says it MUST NOT be set. */
3142 if (track->mode == MODE_ISM)
3143 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
3144 MOV_TFHD_BASE_DATA_OFFSET);
3146 avio_wb32(pb, 0); /* size placeholder */
3147 ffio_wfourcc(pb, "tfhd");
3148 avio_w8(pb, 0); /* version */
3149 avio_wb24(pb, flags);
3151 avio_wb32(pb, track->track_id); /* track-id */
3152 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
3153 avio_wb64(pb, moof_offset);
3154 if (flags & MOV_TFHD_DEFAULT_DURATION) {
3155 track->default_duration = get_cluster_duration(track, 0);
3156 avio_wb32(pb, track->default_duration);
3158 if (flags & MOV_TFHD_DEFAULT_SIZE) {
3159 track->default_size = track->entry ? track->cluster[0].size : 1;
3160 avio_wb32(pb, track->default_size);
3162 track->default_size = -1;
3164 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
3165 track->default_sample_flags =
3166 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
3167 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
3168 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
3169 avio_wb32(pb, track->default_sample_flags);
3172 return update_size(pb, pos);
3175 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
3177 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
3178 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
3181 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
3182 MOVTrack *track, int moof_size)
3184 int64_t pos = avio_tell(pb);
3185 uint32_t flags = MOV_TRUN_DATA_OFFSET;
3188 for (i = 0; i < track->entry; i++) {
3189 if (get_cluster_duration(track, i) != track->default_duration)
3190 flags |= MOV_TRUN_SAMPLE_DURATION;
3191 if (track->cluster[i].size != track->default_size)
3192 flags |= MOV_TRUN_SAMPLE_SIZE;
3193 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
3194 flags |= MOV_TRUN_SAMPLE_FLAGS;
3196 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
3197 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
3198 if (track->flags & MOV_TRACK_CTTS)
3199 flags |= MOV_TRUN_SAMPLE_CTS;
3201 avio_wb32(pb, 0); /* size placeholder */
3202 ffio_wfourcc(pb, "trun");
3203 avio_w8(pb, 0); /* version */
3204 avio_wb24(pb, flags);
3206 avio_wb32(pb, track->entry); /* sample count */
3207 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3208 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
3210 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
3212 avio_wb32(pb, moof_size + 8 + track->data_offset +
3213 track->cluster[0].pos); /* data offset */
3214 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
3215 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
3217 for (i = 0; i < track->entry; i++) {
3218 if (flags & MOV_TRUN_SAMPLE_DURATION)
3219 avio_wb32(pb, get_cluster_duration(track, i));
3220 if (flags & MOV_TRUN_SAMPLE_SIZE)
3221 avio_wb32(pb, track->cluster[i].size);
3222 if (flags & MOV_TRUN_SAMPLE_FLAGS)
3223 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
3224 if (flags & MOV_TRUN_SAMPLE_CTS)
3225 avio_wb32(pb, track->cluster[i].cts);
3228 mov->first_trun = 0;
3229 return update_size(pb, pos);
3232 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
3234 int64_t pos = avio_tell(pb);
3235 static const uint8_t uuid[] = {
3236 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
3237 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
3240 avio_wb32(pb, 0); /* size placeholder */
3241 ffio_wfourcc(pb, "uuid");
3242 avio_write(pb, uuid, sizeof(uuid));
3245 avio_wb64(pb, track->frag_start);
3246 avio_wb64(pb, track->start_dts + track->track_duration -
3247 track->cluster[0].dts);
3249 return update_size(pb, pos);
3252 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
3253 MOVTrack *track, int entry)
3255 int n = track->nb_frag_info - 1 - entry, i;
3256 int size = 8 + 16 + 4 + 1 + 16*n;
3257 static const uint8_t uuid[] = {
3258 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
3259 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
3265 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
3266 avio_wb32(pb, size);
3267 ffio_wfourcc(pb, "uuid");
3268 avio_write(pb, uuid, sizeof(uuid));
3272 for (i = 0; i < n; i++) {
3273 int index = entry + 1 + i;
3274 avio_wb64(pb, track->frag_info[index].time);
3275 avio_wb64(pb, track->frag_info[index].duration);
3277 if (n < mov->ism_lookahead) {
3278 int free_size = 16 * (mov->ism_lookahead - n);
3279 avio_wb32(pb, free_size);
3280 ffio_wfourcc(pb, "free");
3281 ffio_fill(pb, 0, free_size - 8);
3287 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
3290 int64_t pos = avio_tell(pb);
3292 for (i = 0; i < mov->ism_lookahead; i++) {
3293 /* Update the tfrf tag for the last ism_lookahead fragments,
3294 * nb_frag_info - 1 is the next fragment to be written. */
3295 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
3297 avio_seek(pb, pos, SEEK_SET);
3301 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks)
3304 for (i = 0; i < mov->nb_streams; i++) {
3305 MOVTrack *track = &mov->tracks[i];
3306 MOVFragmentInfo *info;
3307 if ((tracks >= 0 && i != tracks) || !track->entry)
3309 track->nb_frag_info++;
3310 if (track->nb_frag_info >= track->frag_info_capacity) {
3311 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3312 if (av_reallocp_array(&track->frag_info,
3314 sizeof(*track->frag_info)))
3315 return AVERROR(ENOMEM);
3316 track->frag_info_capacity = new_capacity;
3318 info = &track->frag_info[track->nb_frag_info - 1];
3319 info->offset = avio_tell(pb);
3320 // Try to recreate the original pts for the first packet
3321 // from the fields we have stored
3322 info->time = track->start_dts + track->frag_start +
3323 track->cluster[0].cts;
3324 // If the pts is less than zero, we will have trimmed
3325 // away parts of the media track using an edit list,
3326 // and the corresponding start presentation time is zero.
3329 info->duration = track->start_dts + track->track_duration -
3330 track->cluster[0].dts;
3331 info->tfrf_offset = 0;
3332 mov_write_tfrf_tags(pb, mov, track);
3337 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
3339 int64_t pos = avio_tell(pb);
3341 avio_wb32(pb, 0); /* size */
3342 ffio_wfourcc(pb, "tfdt");
3343 avio_w8(pb, 1); /* version */
3345 avio_wb64(pb, track->frag_start);
3346 return update_size(pb, pos);
3349 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
3350 MOVTrack *track, int64_t moof_offset,
3353 int64_t pos = avio_tell(pb);
3354 avio_wb32(pb, 0); /* size placeholder */
3355 ffio_wfourcc(pb, "traf");
3357 mov_write_tfhd_tag(pb, mov, track, moof_offset);
3358 if (mov->mode != MODE_ISM)
3359 mov_write_tfdt_tag(pb, track);
3360 mov_write_trun_tag(pb, mov, track, moof_size);
3361 if (mov->mode == MODE_ISM) {
3362 mov_write_tfxd_tag(pb, track);
3364 if (mov->ism_lookahead) {
3365 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
3367 if (track->nb_frag_info > 0) {
3368 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
3369 if (!info->tfrf_offset)
3370 info->tfrf_offset = avio_tell(pb);
3372 avio_wb32(pb, 8 + size);
3373 ffio_wfourcc(pb, "free");
3374 for (i = 0; i < size; i++)
3379 return update_size(pb, pos);
3382 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
3383 int tracks, int moof_size)
3385 int64_t pos = avio_tell(pb);
3388 avio_wb32(pb, 0); /* size placeholder */
3389 ffio_wfourcc(pb, "moof");
3390 mov->first_trun = 1;
3392 mov_write_mfhd_tag(pb, mov);
3393 for (i = 0; i < mov->nb_streams; i++) {
3394 MOVTrack *track = &mov->tracks[i];
3395 if (tracks >= 0 && i != tracks)
3399 mov_write_traf_tag(pb, mov, track, pos, moof_size);
3402 return update_size(pb, pos);
3405 static int mov_write_sidx_tag(AVIOContext *pb,
3406 MOVTrack *track, int ref_size, int total_sidx_size)
3408 int64_t pos = avio_tell(pb), offset_pos, end_pos;
3409 int64_t presentation_time = track->start_dts + track->frag_start +
3410 track->cluster[0].cts;
3411 int64_t duration = track->start_dts + track->track_duration -
3412 track->cluster[0].dts;
3414 int starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3416 // pts<0 should be cut away using edts
3417 if (presentation_time < 0)
3418 presentation_time = 0;
3420 avio_wb32(pb, 0); /* size */
3421 ffio_wfourcc(pb, "sidx");
3422 avio_w8(pb, 1); /* version */
3424 avio_wb32(pb, track->track_id); /* reference_ID */
3425 avio_wb32(pb, track->timescale); /* timescale */
3426 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
3427 offset_pos = avio_tell(pb);
3428 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
3429 avio_wb16(pb, 0); /* reserved */
3430 avio_wb16(pb, 1); /* reference_count */
3431 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
3432 avio_wb32(pb, duration); /* subsegment_duration */
3433 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
3435 end_pos = avio_tell(pb);
3436 offset = pos + total_sidx_size - end_pos;
3437 avio_seek(pb, offset_pos, SEEK_SET);
3438 avio_wb64(pb, offset);
3439 avio_seek(pb, end_pos, SEEK_SET);
3440 return update_size(pb, pos);
3443 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
3444 int tracks, int ref_size)
3447 AVIOContext *avio_buf;
3449 for (round = 0; round < 2; round++) {
3450 // First run one round to calculate the total size of all
3452 // This would be much simpler if we'd only write one sidx
3453 // atom, for the first track in the moof.
3455 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3460 for (i = 0; i < mov->nb_streams; i++) {
3461 MOVTrack *track = &mov->tracks[i];
3462 if (tracks >= 0 && i != tracks)
3466 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
3470 total_size = ffio_close_null_buf(avio_buf);
3475 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
3478 AVIOContext *avio_buf;
3481 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
3483 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
3484 moof_size = ffio_close_null_buf(avio_buf);
3486 if (mov->flags & FF_MOV_FLAG_DASH)
3487 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
3489 if ((ret = mov_add_tfra_entries(pb, mov, tracks)) < 0)
3492 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
3495 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
3497 int64_t pos = avio_tell(pb);
3500 avio_wb32(pb, 0); /* size placeholder */
3501 ffio_wfourcc(pb, "tfra");
3502 avio_w8(pb, 1); /* version */
3505 avio_wb32(pb, track->track_id);
3506 avio_wb32(pb, 0); /* length of traf/trun/sample num */
3507 avio_wb32(pb, track->nb_frag_info);
3508 for (i = 0; i < track->nb_frag_info; i++) {
3509 avio_wb64(pb, track->frag_info[i].time);
3510 avio_wb64(pb, track->frag_info[i].offset);
3511 avio_w8(pb, 1); /* traf number */
3512 avio_w8(pb, 1); /* trun number */
3513 avio_w8(pb, 1); /* sample number */
3516 return update_size(pb, pos);
3519 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
3521 int64_t pos = avio_tell(pb);
3524 avio_wb32(pb, 0); /* size placeholder */
3525 ffio_wfourcc(pb, "mfra");
3526 /* An empty mfra atom is enough to indicate to the publishing point that
3527 * the stream has ended. */
3528 if (mov->flags & FF_MOV_FLAG_ISML)
3529 return update_size(pb, pos);
3531 for (i = 0; i < mov->nb_streams; i++) {
3532 MOVTrack *track = &mov->tracks[i];
3533 if (track->nb_frag_info)
3534 mov_write_tfra_tag(pb, track);
3538 ffio_wfourcc(pb, "mfro");
3539 avio_wb32(pb, 0); /* version + flags */
3540 avio_wb32(pb, avio_tell(pb) + 4 - pos);
3542 return update_size(pb, pos);
3545 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3547 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3548 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3550 mov->mdat_pos = avio_tell(pb);
3551 avio_wb32(pb, 0); /* size placeholder*/
3552 ffio_wfourcc(pb, "mdat");
3556 /* TODO: This needs to be more general */
3557 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3559 MOVMuxContext *mov = s->priv_data;
3560 int64_t pos = avio_tell(pb);
3561 int has_h264 = 0, has_video = 0;
3565 for (i = 0; i < s->nb_streams; i++) {
3566 AVStream *st = s->streams[i];
3567 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3569 if (st->codec->codec_id == AV_CODEC_ID_H264)
3573 avio_wb32(pb, 0); /* size */
3574 ffio_wfourcc(pb, "ftyp");
3576 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3577 ffio_wfourcc(pb, mov->major_brand);
3578 else if (mov->mode == MODE_3GP) {
3579 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3580 minor = has_h264 ? 0x100 : 0x200;
3581 } else if (mov->mode & MODE_3G2) {
3582 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3583 minor = has_h264 ? 0x20000 : 0x10000;
3584 } else if (mov->mode == MODE_PSP)
3585 ffio_wfourcc(pb, "MSNV");
3586 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3587 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3588 else if (mov->mode == MODE_MP4)
3589 ffio_wfourcc(pb, "isom");
3590 else if (mov->mode == MODE_IPOD)
3591 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3592 else if (mov->mode == MODE_ISM)
3593 ffio_wfourcc(pb, "isml");
3594 else if (mov->mode == MODE_F4V)
3595 ffio_wfourcc(pb, "f4v ");
3597 ffio_wfourcc(pb, "qt ");
3599 avio_wb32(pb, minor);
3601 if (mov->mode == MODE_MOV)
3602 ffio_wfourcc(pb, "qt ");
3603 else if (mov->mode == MODE_ISM) {
3604 ffio_wfourcc(pb, "piff");
3605 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3606 ffio_wfourcc(pb, "isom");
3607 ffio_wfourcc(pb, "iso2");
3609 ffio_wfourcc(pb, "avc1");
3612 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3613 // brand. This is compatible with users that don't understand tfdt.
3614 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3615 ffio_wfourcc(pb, "iso6");
3617 if (mov->mode == MODE_3GP)
3618 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3619 else if (mov->mode & MODE_3G2)
3620 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3621 else if (mov->mode == MODE_PSP)
3622 ffio_wfourcc(pb, "MSNV");
3623 else if (mov->mode == MODE_MP4)
3624 ffio_wfourcc(pb, "mp41");
3625 return update_size(pb, pos);
3628 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3630 AVStream *video_st = s->streams[0];
3631 AVCodecContext *video_codec = s->streams[0]->codec;
3632 AVCodecContext *audio_codec = s->streams[1]->codec;
3633 int audio_rate = audio_codec->sample_rate;
3634 // TODO: should be avg_frame_rate
3635 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3636 int audio_kbitrate = audio_codec->bit_rate / 1000;
3637 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3639 avio_wb32(pb, 0x94); /* size */
3640 ffio_wfourcc(pb, "uuid");
3641 ffio_wfourcc(pb, "PROF");
3643 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3644 avio_wb32(pb, 0xbb88695c);
3645 avio_wb32(pb, 0xfac9c740);
3647 avio_wb32(pb, 0x0); /* ? */
3648 avio_wb32(pb, 0x3); /* 3 sections ? */
3650 avio_wb32(pb, 0x14); /* size */
3651 ffio_wfourcc(pb, "FPRF");
3652 avio_wb32(pb, 0x0); /* ? */
3653 avio_wb32(pb, 0x0); /* ? */
3654 avio_wb32(pb, 0x0); /* ? */
3656 avio_wb32(pb, 0x2c); /* size */
3657 ffio_wfourcc(pb, "APRF"); /* audio */
3659 avio_wb32(pb, 0x2); /* TrackID */
3660 ffio_wfourcc(pb, "mp4a");
3661 avio_wb32(pb, 0x20f);
3663 avio_wb32(pb, audio_kbitrate);
3664 avio_wb32(pb, audio_kbitrate);
3665 avio_wb32(pb, audio_rate);
3666 avio_wb32(pb, audio_codec->channels);
3668 avio_wb32(pb, 0x34); /* size */
3669 ffio_wfourcc(pb, "VPRF"); /* video */
3671 avio_wb32(pb, 0x1); /* TrackID */
3672 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3673 ffio_wfourcc(pb, "avc1");
3674 avio_wb16(pb, 0x014D);
3675 avio_wb16(pb, 0x0015);
3677 ffio_wfourcc(pb, "mp4v");
3678 avio_wb16(pb, 0x0000);
3679 avio_wb16(pb, 0x0103);
3682 avio_wb32(pb, video_kbitrate);
3683 avio_wb32(pb, video_kbitrate);
3684 avio_wb32(pb, frame_rate);
3685 avio_wb32(pb, frame_rate);
3686 avio_wb16(pb, video_codec->width);
3687 avio_wb16(pb, video_codec->height);
3688 avio_wb32(pb, 0x010001); /* ? */
3691 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3694 int i, closed_gop = 0;
3696 for (i = 0; i < pkt->size - 4; i++) {
3697 c = (c << 8) + pkt->data[i];
3698 if (c == 0x1b8) { // gop
3699 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3700 } else if (c == 0x100) { // pic
3701 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3702 if (!temp_ref || closed_gop) // I picture is not reordered
3703 *flags = MOV_SYNC_SAMPLE;
3705 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3712 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3714 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3715 int seq = 0, entry = 0;
3716 int key = pkt->flags & AV_PKT_FLAG_KEY;
3717 start = find_next_marker(pkt->data, end);
3718 for (next = start; next < end; start = next) {
3719 next = find_next_marker(start + 4, end);
3720 switch (AV_RB32(start)) {
3721 case VC1_CODE_SEQHDR:
3724 case VC1_CODE_ENTRYPOINT:
3727 case VC1_CODE_SLICE:
3728 trk->vc1_info.slices = 1;
3732 if (!trk->entry && !fragment) {
3733 /* First packet in first fragment */
3734 trk->vc1_info.first_packet_seq = seq;
3735 trk->vc1_info.first_packet_entry = entry;
3736 } else if ((seq && !trk->vc1_info.packet_seq) ||
3737 (entry && !trk->vc1_info.packet_entry)) {
3739 for (i = 0; i < trk->entry; i++)
3740 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3741 trk->has_keyframes = 0;
3743 trk->vc1_info.packet_seq = 1;
3745 trk->vc1_info.packet_entry = 1;
3747 /* First fragment */
3748 if ((!seq || trk->vc1_info.first_packet_seq) &&
3749 (!entry || trk->vc1_info.first_packet_entry)) {
3750 /* First packet had the same headers as this one, readd the
3751 * sync sample flag. */
3752 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3753 trk->has_keyframes = 1;
3757 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3759 else if (trk->vc1_info.packet_seq)
3761 else if (trk->vc1_info.packet_entry)
3764 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3765 trk->has_keyframes++;
3769 static int mov_flush_fragment(AVFormatContext *s)
3771 MOVMuxContext *mov = s->priv_data;
3772 int i, first_track = -1;
3773 int64_t mdat_size = 0;
3775 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3778 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3779 int64_t pos = avio_tell(s->pb);
3781 int buf_size, moov_size;
3783 for (i = 0; i < mov->nb_streams; i++)
3784 if (!mov->tracks[i].entry)
3786 /* Don't write the initial moov unless all tracks have data */
3787 if (i < mov->nb_streams)
3790 moov_size = get_moov_size(s);
3791 for (i = 0; i < mov->nb_streams; i++)
3792 mov->tracks[i].data_offset = pos + moov_size + 8;
3794 mov_write_moov_tag(s->pb, mov, s);
3796 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3797 mov->mdat_buf = NULL;
3798 avio_wb32(s->pb, buf_size + 8);
3799 ffio_wfourcc(s->pb, "mdat");
3800 avio_write(s->pb, buf, buf_size);
3805 for (i = 0; i < mov->nb_streams; i++) {
3806 if (mov->tracks[i].entry)
3807 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3808 mov->tracks[i].track_duration -
3809 mov->tracks[i].cluster[0].dts;
3810 mov->tracks[i].entry = 0;
3816 for (i = 0; i < mov->nb_streams; i++) {
3817 MOVTrack *track = &mov->tracks[i];
3818 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3819 track->data_offset = 0;
3821 track->data_offset = mdat_size;
3822 if (!track->mdat_buf)
3824 mdat_size += avio_tell(track->mdat_buf);
3825 if (first_track < 0)
3832 for (i = 0; i < mov->nb_streams; i++) {
3833 MOVTrack *track = &mov->tracks[i];
3834 int buf_size, write_moof = 1, moof_tracks = -1;
3836 int64_t duration = 0;
3839 duration = track->start_dts + track->track_duration -
3840 track->cluster[0].dts;
3841 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3842 if (!track->mdat_buf)
3844 mdat_size = avio_tell(track->mdat_buf);
3847 write_moof = i == first_track;
3853 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3856 avio_wb32(s->pb, mdat_size + 8);
3857 ffio_wfourcc(s->pb, "mdat");
3861 track->frag_start += duration;
3863 if (!track->mdat_buf)
3865 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3866 track->mdat_buf = NULL;
3868 avio_write(s->pb, buf, buf_size);
3878 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3880 MOVMuxContext *mov = s->priv_data;
3881 AVIOContext *pb = s->pb;
3882 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3883 AVCodecContext *enc = trk->enc;
3884 unsigned int samples_in_chunk = 0;
3885 int size = pkt->size, ret = 0;
3886 uint8_t *reformatted_data = NULL;
3889 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3890 if (duration < 0 || duration > INT_MAX) {
3891 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3895 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3896 pkt->pts = AV_NOPTS_VALUE;
3898 if (pkt->duration < 0) {
3899 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3900 return AVERROR(EINVAL);
3903 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3905 if (mov->fragments > 0) {
3906 if (!trk->mdat_buf) {
3907 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3912 if (!mov->mdat_buf) {
3913 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3920 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3921 /* We must find out how many AMR blocks there are in one packet */
3922 static uint16_t packed_size[16] =
3923 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3926 while (len < size && samples_in_chunk < 100) {
3927 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3930 if (samples_in_chunk > 1) {
3931 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3934 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3935 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3936 samples_in_chunk = enc->frame_size;
3937 } else if (trk->sample_size)
3938 samples_in_chunk = size / trk->sample_size;
3940 samples_in_chunk = 1;
3942 /* copy extradata if it exists */
3943 if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
3944 trk->vos_len = enc->extradata_size;
3945 trk->vos_data = av_malloc(trk->vos_len);
3946 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3949 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3950 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3951 if (!s->streams[pkt->stream_index]->nb_frames) {
3952 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3953 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
3954 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3957 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3959 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
3960 /* from x264 or from bytestream h264 */
3961 /* nal reformating needed */
3962 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3963 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3965 avio_write(pb, reformatted_data, size);
3967 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3969 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3970 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3971 /* extradata is Annex B, assume the bitstream is too and convert it */
3972 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3973 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3974 avio_write(pb, reformatted_data, size);
3976 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3978 } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
3979 size = handle_eac3(mov, pkt, trk);
3984 avio_write(pb, pkt->data, size);
3986 avio_write(pb, pkt->data, size);
3989 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3990 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3991 /* copy frame to create needed atoms */
3992 trk->vos_len = size;
3993 trk->vos_data = av_malloc(size);
3994 if (!trk->vos_data) {
3995 ret = AVERROR(ENOMEM);
3998 memcpy(trk->vos_data, pkt->data, size);
4001 if (trk->entry >= trk->cluster_capacity) {
4002 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
4003 if (av_reallocp_array(&trk->cluster, new_capacity,
4004 sizeof(*trk->cluster))) {
4005 ret = AVERROR(ENOMEM);
4008 trk->cluster_capacity = new_capacity;
4011 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
4012 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
4013 trk->cluster[trk->entry].chunkNum = 0;
4014 trk->cluster[trk->entry].size = size;
4015 trk->cluster[trk->entry].entries = samples_in_chunk;
4016 trk->cluster[trk->entry].dts = pkt->dts;
4017 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
4018 /* First packet of a new fragment. We already wrote the duration
4019 * of the last packet of the previous fragment based on track_duration,
4020 * which might not exactly match our dts. Therefore adjust the dts
4021 * of this packet to be what the previous packets duration implies. */
4022 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
4025 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
4026 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
4027 /* Not using edit lists and shifting the first track to start from zero.
4028 * If the other streams start from a later timestamp, we won't be able
4029 * to signal the difference in starting time without an edit list.
4030 * Thus move the timestamp for this first sample to 0, increasing
4031 * its duration instead. */
4032 trk->cluster[trk->entry].dts = trk->start_dts = 0;
4034 if (trk->start_dts == AV_NOPTS_VALUE) {
4035 trk->start_dts = pkt->dts;
4036 if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
4037 av_log(s, AV_LOG_WARNING,
4038 "Track %d starts with a nonzero dts %"PRId64". This "
4039 "currently isn't handled correctly in combination with "
4040 "empty_moov.\n", pkt->stream_index, pkt->dts);
4042 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
4043 trk->last_sample_is_subtitle_end = 0;
4045 if (pkt->pts == AV_NOPTS_VALUE) {
4046 av_log(s, AV_LOG_WARNING, "pts has no value\n");
4047 pkt->pts = pkt->dts;
4049 if (pkt->dts != pkt->pts)
4050 trk->flags |= MOV_TRACK_CTTS;
4051 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
4052 trk->cluster[trk->entry].flags = 0;
4053 if (enc->codec_id == AV_CODEC_ID_VC1) {
4054 mov_parse_vc1_frame(pkt, trk, mov->fragments);
4055 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
4056 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
4057 trk->entry > 0) { // force sync sample for the first key frame
4058 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
4059 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
4060 trk->flags |= MOV_TRACK_STPS;
4062 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
4064 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
4065 trk->has_keyframes++;
4068 trk->sample_count += samples_in_chunk;
4069 mov->mdat_size += size;
4071 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
4072 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
4073 reformatted_data, size);
4078 av_free(reformatted_data);
4082 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
4084 MOVMuxContext *mov = s->priv_data;
4085 MOVTrack *trk = &mov->tracks[pkt->stream_index];
4086 AVCodecContext *enc = trk->enc;
4087 int64_t frag_duration = 0;
4088 int size = pkt->size;
4091 return 0; /* Discard 0 sized packets */
4093 if (trk->entry && pkt->stream_index < s->nb_streams)
4094 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
4095 s->streams[pkt->stream_index]->time_base,
4097 if ((mov->max_fragment_duration &&
4098 frag_duration >= mov->max_fragment_duration) ||
4099 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
4100 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
4101 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
4102 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
4103 if (frag_duration >= mov->min_fragment_duration)
4104 mov_flush_fragment(s);
4107 return ff_mov_write_packet(s, pkt);
4110 static int mov_write_subtitle_end_packet(AVFormatContext *s,
4114 uint8_t data[2] = {0};
4117 av_init_packet(&end);
4118 end.size = sizeof(data);
4123 end.stream_index = stream_index;
4125 ret = mov_write_single_packet(s, &end);
4126 av_free_packet(&end);
4131 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
4134 mov_flush_fragment(s);
4138 MOVMuxContext *mov = s->priv_data;
4140 if (!pkt->size) return 0; /* Discard 0 sized packets */
4143 * Subtitles require special handling.
4145 * 1) For full complaince, every track must have a sample at
4146 * dts == 0, which is rarely true for subtitles. So, as soon
4147 * as we see any packet with dts > 0, write an empty subtitle
4148 * at dts == 0 for any subtitle track with no samples in it.
4150 * 2) For each subtitle track, check if the current packet's
4151 * dts is past the duration of the last subtitle sample. If
4152 * so, we now need to write an end sample for that subtitle.
4154 * This must be done conditionally to allow for subtitles that
4155 * immediately replace each other, in which case an end sample
4156 * is not needed, and is, in fact, actively harmful.
4158 * 3) See mov_write_trailer for how the final end sample is
4161 for (i = 0; i < mov->nb_streams; i++) {
4162 MOVTrack *trk = &mov->tracks[i];
4165 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4166 trk->track_duration < pkt->dts &&
4167 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
4168 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
4169 if (ret < 0) return ret;
4170 trk->last_sample_is_subtitle_end = 1;
4174 return mov_write_single_packet(s, pkt);
4178 // QuickTime chapters involve an additional text track with the chapter names
4179 // as samples, and a tref pointing from the other tracks to the chapter one.
4180 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
4184 MOVMuxContext *mov = s->priv_data;
4185 MOVTrack *track = &mov->tracks[tracknum];
4186 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
4189 track->mode = mov->mode;
4190 track->tag = MKTAG('t','e','x','t');
4191 track->timescale = MOV_TIMESCALE;
4192 track->enc = avcodec_alloc_context3(NULL);
4194 return AVERROR(ENOMEM);
4195 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
4197 // These properties are required to make QT recognize the chapter track
4198 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
4199 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
4200 return AVERROR(ENOMEM);
4201 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
4203 if (avio_open_dyn_buf(&pb) >= 0) {
4207 /* Stub header (usually for Quicktime chapter track) */
4209 avio_wb32(pb, 0x01); // displayFlags
4210 avio_w8(pb, 0x00); // horizontal justification
4211 avio_w8(pb, 0x00); // vertical justification
4212 avio_w8(pb, 0x00); // bgColourRed
4213 avio_w8(pb, 0x00); // bgColourGreen
4214 avio_w8(pb, 0x00); // bgColourBlue
4215 avio_w8(pb, 0x00); // bgColourAlpha
4217 avio_wb16(pb, 0x00); // defTextBoxTop
4218 avio_wb16(pb, 0x00); // defTextBoxLeft
4219 avio_wb16(pb, 0x00); // defTextBoxBottom
4220 avio_wb16(pb, 0x00); // defTextBoxRight
4222 avio_wb16(pb, 0x00); // startChar
4223 avio_wb16(pb, 0x00); // endChar
4224 avio_wb16(pb, 0x01); // fontID
4225 avio_w8(pb, 0x00); // fontStyleFlags
4226 avio_w8(pb, 0x00); // fontSize
4227 avio_w8(pb, 0x00); // fgColourRed
4228 avio_w8(pb, 0x00); // fgColourGreen
4229 avio_w8(pb, 0x00); // fgColourBlue
4230 avio_w8(pb, 0x00); // fgColourAlpha
4232 avio_wb32(pb, 0x0D); // box size
4233 ffio_wfourcc(pb, "ftab"); // box atom name
4234 avio_wb16(pb, 0x01); // entry count
4236 avio_wb16(pb, 0x01); // font ID
4237 avio_w8(pb, 0x00); // font name length
4239 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
4240 track->enc->extradata = buf;
4241 track->enc->extradata_size = size;
4248 for (i = 0; i < s->nb_chapters; i++) {
4249 AVChapter *c = s->chapters[i];
4250 AVDictionaryEntry *t;
4252 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
4253 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
4254 pkt.duration = end - pkt.dts;
4256 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
4257 const char encd[12] = {
4258 0x00, 0x00, 0x00, 0x0C,
4260 0x00, 0x00, 0x01, 0x00 };
4261 len = strlen(t->value);
4262 pkt.size = len + 2 + 12;
4263 pkt.data = av_malloc(pkt.size);
4265 return AVERROR(ENOMEM);
4266 AV_WB16(pkt.data, len);
4267 memcpy(pkt.data + 2, t->value, len);
4268 memcpy(pkt.data + len + 2, encd, sizeof(encd));
4269 ff_mov_write_packet(s, &pkt);
4270 av_freep(&pkt.data);
4277 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
4280 MOVMuxContext *mov = s->priv_data;
4281 MOVTrack *track = &mov->tracks[index];
4282 AVStream *src_st = s->streams[src_index];
4284 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
4285 AVRational rate = find_fps(s, src_st);
4287 /* compute the frame number */
4288 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
4292 /* tmcd track based on video stream */
4293 track->mode = mov->mode;
4294 track->tag = MKTAG('t','m','c','d');
4295 track->src_track = src_index;
4296 track->timescale = mov->tracks[src_index].timescale;
4297 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
4298 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
4300 /* set st to src_st for metadata access*/
4303 /* encode context: tmcd data stream */
4304 track->enc = avcodec_alloc_context3(NULL);
4305 track->enc->codec_type = AVMEDIA_TYPE_DATA;
4306 track->enc->codec_tag = track->tag;
4307 track->enc->time_base = av_inv_q(rate);
4309 /* the tmcd track just contains one packet with the frame number */
4310 pkt.data = av_malloc(pkt.size);
4311 AV_WB32(pkt.data, tc.start);
4312 ret = ff_mov_write_packet(s, &pkt);
4318 * st->disposition controls the "enabled" flag in the tkhd tag.
4319 * QuickTime will not play a track if it is not enabled. So make sure
4320 * that one track of each type (audio, video, subtitle) is enabled.
4322 * Subtitles are special. For audio and video, setting "enabled" also
4323 * makes the track "default" (i.e. it is rendered when played). For
4324 * subtitles, an "enabled" subtitle is not rendered by default, but
4325 * if no subtitle is enabled, the subtitle menu in QuickTime will be
4328 static void enable_tracks(AVFormatContext *s)
4330 MOVMuxContext *mov = s->priv_data;
4332 int enabled[AVMEDIA_TYPE_NB];
4333 int first[AVMEDIA_TYPE_NB];
4335 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4340 for (i = 0; i < s->nb_streams; i++) {
4341 AVStream *st = s->streams[i];
4343 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
4344 st->codec->codec_type >= AVMEDIA_TYPE_NB)
4347 if (first[st->codec->codec_type] < 0)
4348 first[st->codec->codec_type] = i;
4349 if (st->disposition & AV_DISPOSITION_DEFAULT) {
4350 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
4351 enabled[st->codec->codec_type]++;
4355 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
4357 case AVMEDIA_TYPE_VIDEO:
4358 case AVMEDIA_TYPE_AUDIO:
4359 case AVMEDIA_TYPE_SUBTITLE:
4361 mov->per_stream_grouping = 1;
4362 if (!enabled[i] && first[i] >= 0)
4363 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
4369 static void mov_free(AVFormatContext *s)
4371 MOVMuxContext *mov = s->priv_data;
4374 if (mov->chapter_track) {
4375 if (mov->tracks[mov->chapter_track].enc)
4376 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
4377 av_freep(&mov->tracks[mov->chapter_track].enc);
4380 for (i = 0; i < mov->nb_streams; i++) {
4381 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
4382 ff_mov_close_hinting(&mov->tracks[i]);
4383 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
4384 av_freep(&mov->tracks[i].enc);
4385 av_freep(&mov->tracks[i].cluster);
4386 av_freep(&mov->tracks[i].frag_info);
4388 if (mov->tracks[i].vos_len)
4389 av_freep(&mov->tracks[i].vos_data);
4392 av_freep(&mov->tracks);
4395 static uint32_t rgb_to_yuv(uint32_t rgb)
4400 r = (rgb >> 16) & 0xFF;
4401 g = (rgb >> 8) & 0xFF;
4404 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
4405 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
4406 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
4408 return (y << 16) | (cr << 8) | cb;
4411 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
4414 int i, width = 720, height = 480;
4415 int have_palette = 0, have_size = 0;
4416 uint32_t palette[16];
4417 char *cur = st->codec->extradata;
4419 while (cur && *cur) {
4420 if (strncmp("palette:", cur, 8) == 0) {
4422 count = sscanf(cur + 8,
4423 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4424 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4425 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
4426 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
4427 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
4428 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
4429 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
4430 &palette[12], &palette[13], &palette[14], &palette[15]);
4432 for (i = 0; i < count; i++) {
4433 palette[i] = rgb_to_yuv(palette[i]);
4436 } else if (!strncmp("size:", cur, 5)) {
4437 sscanf(cur + 5, "%dx%d", &width, &height);
4440 if (have_palette && have_size)
4442 cur += strcspn(cur, "\n\r");
4443 cur += strspn(cur, "\n\r");
4446 track->vos_data = av_malloc(16*4);
4447 if (!track->vos_data)
4448 return AVERROR(ENOMEM);
4449 for (i = 0; i < 16; i++) {
4450 AV_WB32(track->vos_data + i * 4, palette[i]);
4452 track->vos_len = 16 * 4;
4454 st->codec->width = width;
4455 st->codec->height = track->height = height;
4460 static int mov_write_header(AVFormatContext *s)
4462 AVIOContext *pb = s->pb;
4463 MOVMuxContext *mov = s->priv_data;
4464 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
4465 int i, ret, hint_track = 0, tmcd_track = 0;
4469 /* Default mode == MP4 */
4470 mov->mode = MODE_MP4;
4473 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
4474 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
4475 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
4476 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
4477 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
4478 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
4479 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
4482 if (s->flags & AVFMT_FLAG_BITEXACT)
4485 /* Set the FRAGMENT flag if any of the fragmentation methods are
4487 if (mov->max_fragment_duration || mov->max_fragment_size ||
4488 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
4489 FF_MOV_FLAG_FRAG_KEYFRAME |
4490 FF_MOV_FLAG_FRAG_CUSTOM))
4491 mov->flags |= FF_MOV_FLAG_FRAGMENT;
4493 /* Set other implicit flags immediately */
4494 if (mov->mode == MODE_ISM)
4495 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4496 FF_MOV_FLAG_FRAGMENT;
4497 if (mov->flags & FF_MOV_FLAG_DASH)
4498 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4499 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4501 /* faststart: moov at the beginning of the file, if supported */
4502 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4503 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4504 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
4505 "with fragmentation, disabling faststart\n");
4506 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
4508 mov->reserved_moov_size = -1;
4511 if (mov->use_editlist < 0) {
4512 mov->use_editlist = 1;
4513 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4514 // If we can avoid needing an edit list by shifting the
4515 // tracks, prefer that over (trying to) write edit lists
4516 // in fragmented output.
4517 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4518 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4519 mov->use_editlist = 0;
4522 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && mov->use_editlist)
4523 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov\n");
4525 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4526 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4528 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4529 * is enabled, we don't support non-seekable output at all. */
4530 if (!s->pb->seekable &&
4531 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4532 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4533 return AVERROR(EINVAL);
4536 mov_write_ftyp_tag(pb,s);
4537 if (mov->mode == MODE_PSP) {
4538 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
4539 for (i = 0; i < s->nb_streams; i++) {
4540 AVStream *st = s->streams[i];
4541 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
4543 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
4549 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
4550 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
4551 return AVERROR(EINVAL);
4553 mov_write_uuidprof_tag(pb, s);
4556 mov->nb_streams = s->nb_streams;
4557 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4558 mov->chapter_track = mov->nb_streams++;
4560 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4561 /* Add hint tracks for each audio and video stream */
4562 hint_track = mov->nb_streams;
4563 for (i = 0; i < s->nb_streams; i++) {
4564 AVStream *st = s->streams[i];
4565 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4566 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4572 if (mov->mode == MODE_MOV) {
4573 tmcd_track = mov->nb_streams;
4575 /* +1 tmcd track for each video stream with a timecode */
4576 for (i = 0; i < s->nb_streams; i++) {
4577 AVStream *st = s->streams[i];
4578 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
4579 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
4580 mov->nb_meta_tmcd++;
4583 /* check if there is already a tmcd track to remux */
4584 if (mov->nb_meta_tmcd) {
4585 for (i = 0; i < s->nb_streams; i++) {
4586 AVStream *st = s->streams[i];
4587 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4588 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4589 "so timecode metadata are now ignored\n");
4590 mov->nb_meta_tmcd = 0;
4595 mov->nb_streams += mov->nb_meta_tmcd;
4598 // Reserve an extra stream for chapters for the case where chapters
4599 // are written in the trailer
4600 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4602 return AVERROR(ENOMEM);
4604 for (i = 0; i < s->nb_streams; i++) {
4605 AVStream *st= s->streams[i];
4606 MOVTrack *track= &mov->tracks[i];
4607 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4610 track->enc = st->codec;
4611 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4612 if (track->language < 0)
4613 track->language = 0;
4614 track->mode = mov->mode;
4615 track->tag = mov_find_codec_tag(s, track);
4617 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4618 "codec not currently supported in container\n",
4619 avcodec_get_name(st->codec->codec_id), i);
4620 ret = AVERROR(EINVAL);
4623 /* If hinting of this track is enabled by a later hint track,
4624 * this is updated. */
4625 track->hint_track = -1;
4626 track->start_dts = AV_NOPTS_VALUE;
4627 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4628 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4629 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4630 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4631 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4632 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4633 ret = AVERROR(EINVAL);
4636 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4638 if (mov->video_track_timescale) {
4639 track->timescale = mov->video_track_timescale;
4641 track->timescale = st->time_base.den;
4642 while(track->timescale < 10000)
4643 track->timescale *= 2;
4645 if (st->codec->width > 65535 || st->codec->height > 65535) {
4646 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4647 ret = AVERROR(EINVAL);
4650 if (track->mode == MODE_MOV && track->timescale > 100000)
4651 av_log(s, AV_LOG_WARNING,
4652 "WARNING codec timebase is very high. If duration is too long,\n"
4653 "file may not be playable by quicktime. Specify a shorter timebase\n"
4654 "or choose different container.\n");
4655 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4656 track->timescale = st->codec->sample_rate;
4657 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4658 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4659 track->audio_vbr = 1;
4660 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4661 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4662 st->codec->codec_id == AV_CODEC_ID_ILBC){
4663 if (!st->codec->block_align) {
4664 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4665 ret = AVERROR(EINVAL);
4668 track->sample_size = st->codec->block_align;
4669 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4670 track->audio_vbr = 1;
4672 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4674 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4675 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4676 track->audio_vbr = 1;
4678 if (track->mode != MODE_MOV &&
4679 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4680 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4681 i, track->enc->sample_rate);
4682 ret = AVERROR(EINVAL);
4685 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4686 track->timescale = st->time_base.den;
4687 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4688 track->timescale = st->time_base.den;
4690 track->timescale = MOV_TIMESCALE;
4693 track->height = st->codec->height;
4694 /* The ism specific timescale isn't mandatory, but is assumed by
4695 * some tools, such as mp4split. */
4696 if (mov->mode == MODE_ISM)
4697 track->timescale = 10000000;
4699 avpriv_set_pts_info(st, 64, 1, track->timescale);
4701 /* copy extradata if it exists */
4702 if (st->codec->extradata_size) {
4703 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4704 mov_create_dvd_sub_decoder_specific_info(track, st);
4705 else if (!TAG_IS_AVCI(track->tag)){
4706 track->vos_len = st->codec->extradata_size;
4707 track->vos_data = av_malloc(track->vos_len);
4708 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4713 for (i = 0; i < s->nb_streams; i++) {
4715 AVStream *st= s->streams[i];
4716 MOVTrack *track= &mov->tracks[i];
4718 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4719 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4722 for (j = 0; j < s->nb_streams; j++) {
4723 AVStream *stj= s->streams[j];
4724 MOVTrack *trackj= &mov->tracks[j];
4728 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4729 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4730 trackj->language != track->language ||
4731 trackj->tag != track->tag
4734 track->multichannel_as_mono++;
4741 if (mov->reserved_moov_size){
4742 mov->reserved_moov_pos= avio_tell(pb);
4743 if (mov->reserved_moov_size > 0)
4744 avio_skip(pb, mov->reserved_moov_size);
4747 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4748 /* If no fragmentation options have been set, set a default. */
4749 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4750 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4751 !mov->max_fragment_duration && !mov->max_fragment_size)
4752 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4754 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4755 mov->reserved_moov_pos = avio_tell(pb);
4756 mov_write_mdat_tag(pb, mov);
4759 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4760 mov->time = ff_iso8601_to_unix_time(t->value);
4762 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4764 if (mov->chapter_track)
4765 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4768 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4769 /* Initialize the hint tracks for each audio and video stream */
4770 for (i = 0; i < s->nb_streams; i++) {
4771 AVStream *st = s->streams[i];
4772 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4773 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4774 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4781 if (mov->nb_meta_tmcd) {
4782 /* Initialize the tmcd tracks */
4783 for (i = 0; i < s->nb_streams; i++) {
4784 AVStream *st = s->streams[i];
4787 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4789 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4792 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4801 if (mov->flags & FF_MOV_FLAG_ISML)
4802 mov_write_isml_manifest(pb, mov);
4804 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4805 mov_write_moov_tag(pb, mov, s);
4815 static int get_moov_size(AVFormatContext *s)
4818 AVIOContext *moov_buf;
4819 MOVMuxContext *mov = s->priv_data;
4821 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4823 mov_write_moov_tag(moov_buf, mov, s);
4824 return ffio_close_null_buf(moov_buf);
4828 * This function gets the moov size if moved to the top of the file: the chunk
4829 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4830 * entries) when the moov is moved to the beginning, so the size of the moov
4831 * would change. It also updates the chunk offset tables.
4833 static int compute_moov_size(AVFormatContext *s)
4835 int i, moov_size, moov_size2;
4836 MOVMuxContext *mov = s->priv_data;
4838 moov_size = get_moov_size(s);
4842 for (i = 0; i < mov->nb_streams; i++)
4843 mov->tracks[i].data_offset += moov_size;
4845 moov_size2 = get_moov_size(s);
4849 /* if the size changed, we just switched from stco to co64 and need to
4850 * update the offsets */
4851 if (moov_size2 != moov_size)
4852 for (i = 0; i < mov->nb_streams; i++)
4853 mov->tracks[i].data_offset += moov_size2 - moov_size;
4858 static int shift_data(AVFormatContext *s)
4860 int ret = 0, moov_size;
4861 MOVMuxContext *mov = s->priv_data;
4862 int64_t pos, pos_end = avio_tell(s->pb);
4863 uint8_t *buf, *read_buf[2];
4864 int read_buf_id = 0;
4866 AVIOContext *read_pb;
4868 moov_size = compute_moov_size(s);
4872 buf = av_malloc(moov_size * 2);
4874 return AVERROR(ENOMEM);
4876 read_buf[1] = buf + moov_size;
4878 /* Shift the data: the AVIO context of the output can only be used for
4879 * writing, so we re-open the same output, but for reading. It also avoids
4880 * a read/seek/write/seek back and forth. */
4882 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4884 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4885 "the second pass (faststart)\n", s->filename);
4889 /* mark the end of the shift to up to the last data we wrote, and get ready
4891 pos_end = avio_tell(s->pb);
4892 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4894 /* start reading at where the new moov will be placed */
4895 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4896 pos = avio_tell(read_pb);
4898 #define READ_BLOCK do { \
4899 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4903 /* shift data by chunk of at most moov_size */
4908 n = read_size[read_buf_id];
4911 avio_write(s->pb, read_buf[read_buf_id], n);
4913 } while (pos < pos_end);
4914 avio_close(read_pb);
4921 static int mov_write_trailer(AVFormatContext *s)
4923 MOVMuxContext *mov = s->priv_data;
4924 AVIOContext *pb = s->pb;
4930 * Before actually writing the trailer, make sure that there are no
4931 * dangling subtitles, that need a terminating sample.
4933 for (i = 0; i < mov->nb_streams; i++) {
4934 MOVTrack *trk = &mov->tracks[i];
4935 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4936 !trk->last_sample_is_subtitle_end) {
4937 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4938 trk->last_sample_is_subtitle_end = 1;
4942 // If there were no chapters when the header was written, but there
4943 // are chapters now, write them in the trailer. This only works
4944 // when we are not doing fragments.
4945 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4946 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4947 mov->chapter_track = mov->nb_streams++;
4948 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4953 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4954 moov_pos = avio_tell(pb);
4956 /* Write size of mdat tag */
4957 if (mov->mdat_size + 8 <= UINT32_MAX) {
4958 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4959 avio_wb32(pb, mov->mdat_size + 8);
4961 /* overwrite 'wide' placeholder atom */
4962 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4963 /* special value: real atom size will be 64 bit value after
4966 ffio_wfourcc(pb, "mdat");
4967 avio_wb64(pb, mov->mdat_size + 16);
4969 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4971 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4972 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4973 res = shift_data(s);
4975 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
4976 mov_write_moov_tag(pb, mov, s);
4978 } else if (mov->reserved_moov_size > 0) {
4980 mov_write_moov_tag(pb, mov, s);
4981 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4983 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4986 avio_wb32(pb, size);
4987 ffio_wfourcc(pb, "free");
4988 ffio_fill(pb, 0, size - 8);
4989 avio_seek(pb, moov_pos, SEEK_SET);
4991 mov_write_moov_tag(pb, mov, s);
4994 mov_flush_fragment(s);
4995 mov_write_mfra_tag(pb, mov);
4998 for (i = 0; i < mov->nb_streams; i++) {
4999 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
5000 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
5001 int64_t off = avio_tell(pb);
5003 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
5004 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
5005 avio_write(pb, buf, 7);
5006 avio_seek(pb, off, SEEK_SET);
5017 #if CONFIG_MOV_MUXER
5019 AVOutputFormat ff_mov_muxer = {
5021 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
5022 .extensions = "mov",
5023 .priv_data_size = sizeof(MOVMuxContext),
5024 .audio_codec = AV_CODEC_ID_AAC,
5025 .video_codec = CONFIG_LIBX264_ENCODER ?
5026 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5027 .write_header = mov_write_header,
5028 .write_packet = mov_write_packet,
5029 .write_trailer = mov_write_trailer,
5030 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5031 .codec_tag = (const AVCodecTag* const []){
5032 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
5034 .priv_class = &mov_muxer_class,
5037 #if CONFIG_TGP_MUXER
5039 AVOutputFormat ff_tgp_muxer = {
5041 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
5042 .extensions = "3gp",
5043 .priv_data_size = sizeof(MOVMuxContext),
5044 .audio_codec = AV_CODEC_ID_AMR_NB,
5045 .video_codec = AV_CODEC_ID_H263,
5046 .write_header = mov_write_header,
5047 .write_packet = mov_write_packet,
5048 .write_trailer = mov_write_trailer,
5049 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5050 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5051 .priv_class = &tgp_muxer_class,
5054 #if CONFIG_MP4_MUXER
5056 AVOutputFormat ff_mp4_muxer = {
5058 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
5059 .mime_type = "application/mp4",
5060 .extensions = "mp4",
5061 .priv_data_size = sizeof(MOVMuxContext),
5062 .audio_codec = AV_CODEC_ID_AAC,
5063 .video_codec = CONFIG_LIBX264_ENCODER ?
5064 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5065 .write_header = mov_write_header,
5066 .write_packet = mov_write_packet,
5067 .write_trailer = mov_write_trailer,
5068 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5069 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5070 .priv_class = &mp4_muxer_class,
5073 #if CONFIG_PSP_MUXER
5075 AVOutputFormat ff_psp_muxer = {
5077 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
5078 .extensions = "mp4,psp",
5079 .priv_data_size = sizeof(MOVMuxContext),
5080 .audio_codec = AV_CODEC_ID_AAC,
5081 .video_codec = CONFIG_LIBX264_ENCODER ?
5082 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
5083 .write_header = mov_write_header,
5084 .write_packet = mov_write_packet,
5085 .write_trailer = mov_write_trailer,
5086 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5087 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5088 .priv_class = &psp_muxer_class,
5091 #if CONFIG_TG2_MUXER
5093 AVOutputFormat ff_tg2_muxer = {
5095 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
5096 .extensions = "3g2",
5097 .priv_data_size = sizeof(MOVMuxContext),
5098 .audio_codec = AV_CODEC_ID_AMR_NB,
5099 .video_codec = AV_CODEC_ID_H263,
5100 .write_header = mov_write_header,
5101 .write_packet = mov_write_packet,
5102 .write_trailer = mov_write_trailer,
5103 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5104 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
5105 .priv_class = &tg2_muxer_class,
5108 #if CONFIG_IPOD_MUXER
5110 AVOutputFormat ff_ipod_muxer = {
5112 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
5113 .mime_type = "application/mp4",
5114 .extensions = "m4v,m4a",
5115 .priv_data_size = sizeof(MOVMuxContext),
5116 .audio_codec = AV_CODEC_ID_AAC,
5117 .video_codec = AV_CODEC_ID_H264,
5118 .write_header = mov_write_header,
5119 .write_packet = mov_write_packet,
5120 .write_trailer = mov_write_trailer,
5121 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5122 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
5123 .priv_class = &ipod_muxer_class,
5126 #if CONFIG_ISMV_MUXER
5128 AVOutputFormat ff_ismv_muxer = {
5130 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
5131 .mime_type = "application/mp4",
5132 .extensions = "ismv,isma",
5133 .priv_data_size = sizeof(MOVMuxContext),
5134 .audio_codec = AV_CODEC_ID_AAC,
5135 .video_codec = AV_CODEC_ID_H264,
5136 .write_header = mov_write_header,
5137 .write_packet = mov_write_packet,
5138 .write_trailer = mov_write_trailer,
5139 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
5140 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
5141 .priv_class = &ismv_muxer_class,
5144 #if CONFIG_F4V_MUXER
5146 AVOutputFormat ff_f4v_muxer = {
5148 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
5149 .mime_type = "application/f4v",
5150 .extensions = "f4v",
5151 .priv_data_size = sizeof(MOVMuxContext),
5152 .audio_codec = AV_CODEC_ID_AAC,
5153 .video_codec = AV_CODEC_ID_H264,
5154 .write_header = mov_write_header,
5155 .write_packet = mov_write_packet,
5156 .write_trailer = mov_write_trailer,
5157 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
5158 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
5159 .priv_class = &f4v_muxer_class,