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/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1.h"
37 #include "libavcodec/raw.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/pixdesc.h"
52 static const AVOption options[] = {
53 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "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" },
55 { "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 },
56 { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
64 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
65 { "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},
66 { "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},
67 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
72 { "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},
73 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
77 #define MOV_CLASS(flavor)\
78 static const AVClass flavor ## _muxer_class = {\
79 .class_name = #flavor " muxer",\
80 .item_name = av_default_item_name,\
82 .version = LIBAVUTIL_VERSION_INT,\
85 static int get_moov_size(AVFormatContext *s);
87 //FIXME support 64 bit variant with wide placeholders
88 static int64_t update_size(AVIOContext *pb, int64_t pos)
90 int64_t curpos = avio_tell(pb);
91 avio_seek(pb, pos, SEEK_SET);
92 avio_wb32(pb, curpos - pos); /* rewrite size */
93 avio_seek(pb, curpos, SEEK_SET);
98 static int supports_edts(MOVMuxContext *mov)
100 // EDTS with fragments is tricky as we don't know the duration when its written
101 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
104 static int co64_required(const MOVTrack *track)
106 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
111 /* Chunk offset atom */
112 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
115 int mode64 = co64_required(track); // use 32 bit size variant if possible
116 int64_t pos = avio_tell(pb);
117 avio_wb32(pb, 0); /* size */
119 ffio_wfourcc(pb, "co64");
121 ffio_wfourcc(pb, "stco");
122 avio_wb32(pb, 0); /* version & flags */
123 avio_wb32(pb, track->chunkCount); /* entry count */
124 for (i = 0; i < track->entry; i++) {
125 if (!track->cluster[i].chunkNum)
128 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
130 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
132 return update_size(pb, pos);
135 /* Sample size atom */
136 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
139 int i, j, entries = 0, tst = -1, oldtst = -1;
141 int64_t pos = avio_tell(pb);
142 avio_wb32(pb, 0); /* size */
143 ffio_wfourcc(pb, "stsz");
144 avio_wb32(pb, 0); /* version & flags */
146 for (i = 0; i < track->entry; i++) {
147 tst = track->cluster[i].size / track->cluster[i].entries;
148 if (oldtst != -1 && tst != oldtst)
151 entries += track->cluster[i].entries;
153 if (equalChunks && track->entry) {
154 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
155 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
156 avio_wb32(pb, sSize); // sample size
157 avio_wb32(pb, entries); // sample count
159 avio_wb32(pb, 0); // sample size
160 avio_wb32(pb, entries); // sample count
161 for (i = 0; i < track->entry; i++) {
162 for (j = 0; j < track->cluster[i].entries; j++) {
163 avio_wb32(pb, track->cluster[i].size /
164 track->cluster[i].entries);
168 return update_size(pb, pos);
171 /* Sample to chunk atom */
172 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
174 int index = 0, oldval = -1, i;
175 int64_t entryPos, curpos;
177 int64_t pos = avio_tell(pb);
178 avio_wb32(pb, 0); /* size */
179 ffio_wfourcc(pb, "stsc");
180 avio_wb32(pb, 0); // version & flags
181 entryPos = avio_tell(pb);
182 avio_wb32(pb, track->chunkCount); // entry count
183 for (i = 0; i < track->entry; i++) {
184 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
185 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
186 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
187 avio_wb32(pb, 0x1); // sample description index
188 oldval = track->cluster[i].samples_in_chunk;
192 curpos = avio_tell(pb);
193 avio_seek(pb, entryPos, SEEK_SET);
194 avio_wb32(pb, index); // rewrite size
195 avio_seek(pb, curpos, SEEK_SET);
197 return update_size(pb, pos);
200 /* Sync sample atom */
201 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
203 int64_t curpos, entryPos;
205 int64_t pos = avio_tell(pb);
206 avio_wb32(pb, 0); // size
207 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
208 avio_wb32(pb, 0); // version & flags
209 entryPos = avio_tell(pb);
210 avio_wb32(pb, track->entry); // entry count
211 for (i = 0; i < track->entry; i++) {
212 if (track->cluster[i].flags & flag) {
213 avio_wb32(pb, i + 1);
217 curpos = avio_tell(pb);
218 avio_seek(pb, entryPos, SEEK_SET);
219 avio_wb32(pb, index); // rewrite size
220 avio_seek(pb, curpos, SEEK_SET);
221 return update_size(pb, pos);
224 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
226 avio_wb32(pb, 0x11); /* size */
227 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
228 else ffio_wfourcc(pb, "damr");
229 ffio_wfourcc(pb, "FFMP");
230 avio_w8(pb, 0); /* decoder version */
232 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
233 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
234 avio_w8(pb, 0x01); /* Frames per sample */
238 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
243 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
245 if (track->vos_len < 7)
249 ffio_wfourcc(pb, "dac3");
251 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
252 fscod = get_bits(&gbc, 2);
253 frmsizecod = get_bits(&gbc, 6);
254 bsid = get_bits(&gbc, 5);
255 bsmod = get_bits(&gbc, 3);
256 acmod = get_bits(&gbc, 3);
258 skip_bits(&gbc, 2); // dsurmod
260 if ((acmod & 1) && acmod != 1)
261 skip_bits(&gbc, 2); // cmixlev
263 skip_bits(&gbc, 2); // surmixlev
265 lfeon = get_bits1(&gbc);
267 init_put_bits(&pbc, buf, sizeof(buf));
268 put_bits(&pbc, 2, fscod);
269 put_bits(&pbc, 5, bsid);
270 put_bits(&pbc, 3, bsmod);
271 put_bits(&pbc, 3, acmod);
272 put_bits(&pbc, 1, lfeon);
273 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
274 put_bits(&pbc, 5, 0); // reserved
276 flush_put_bits(&pbc);
277 avio_write(pb, buf, sizeof(buf));
283 * This function writes extradata "as is".
284 * Extradata must be formatted like a valid atom (with size and tag).
286 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
288 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
289 return track->enc->extradata_size;
292 static int mov_write_enda_tag(AVIOContext *pb)
295 ffio_wfourcc(pb, "enda");
296 avio_wb16(pb, 1); /* little endian */
300 static int mov_write_enda_tag_be(AVIOContext *pb)
303 ffio_wfourcc(pb, "enda");
304 avio_wb16(pb, 0); /* big endian */
308 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
313 avio_w8(pb, (size >> (7 * i)) | 0x80);
314 avio_w8(pb, size & 0x7F);
317 static unsigned compute_avg_bitrate(MOVTrack *track)
321 if (!track->track_duration)
323 for (i = 0; i < track->entry; i++)
324 size += track->cluster[i].size;
325 return size * 8 * track->timescale / track->track_duration;
328 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
330 int64_t pos = avio_tell(pb);
331 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
332 unsigned avg_bitrate;
334 avio_wb32(pb, 0); // size
335 ffio_wfourcc(pb, "esds");
336 avio_wb32(pb, 0); // Version
339 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
340 avio_wb16(pb, track->track_id);
341 avio_w8(pb, 0x00); // flags (= no flags)
343 // DecoderConfig descriptor
344 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
346 // Object type indication
347 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
348 track->enc->codec_id == AV_CODEC_ID_MP3) &&
349 track->enc->sample_rate > 24000)
350 avio_w8(pb, 0x6B); // 11172-3
352 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
354 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
355 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
356 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
357 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
358 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
359 avio_w8(pb, 0x15); // flags (= Audiostream)
361 avio_w8(pb, 0x11); // flags (= Visualstream)
363 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
365 avg_bitrate = compute_avg_bitrate(track);
366 // maxbitrate (FIXME should be max rate in any 1 sec window)
367 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
368 avio_wb32(pb, avg_bitrate);
370 if (track->vos_len) {
371 // DecoderSpecific info descriptor
372 put_descr(pb, 0x05, track->vos_len);
373 avio_write(pb, track->vos_data, track->vos_len);
377 put_descr(pb, 0x06, 1);
379 return update_size(pb, pos);
382 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
384 return codec_id == AV_CODEC_ID_PCM_S24LE ||
385 codec_id == AV_CODEC_ID_PCM_S32LE ||
386 codec_id == AV_CODEC_ID_PCM_F32LE ||
387 codec_id == AV_CODEC_ID_PCM_F64LE;
390 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
392 return codec_id == AV_CODEC_ID_PCM_S24BE ||
393 codec_id == AV_CODEC_ID_PCM_S32BE ||
394 codec_id == AV_CODEC_ID_PCM_F32BE ||
395 codec_id == AV_CODEC_ID_PCM_F64BE;
398 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
401 int64_t pos = avio_tell(pb);
403 avio_wl32(pb, track->tag); // store it byteswapped
404 track->enc->codec_tag = av_bswap16(track->tag >> 16);
405 if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
407 return update_size(pb, pos);
410 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
413 int64_t pos = avio_tell(pb);
415 ffio_wfourcc(pb, "wfex");
416 if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
418 return update_size(pb, pos);
421 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
423 uint32_t layout_tag, bitmap;
424 int64_t pos = avio_tell(pb);
426 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
427 track->enc->channel_layout,
430 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
431 "lack of channel information\n");
435 if (track->multichannel_as_mono)
438 avio_wb32(pb, 0); // Size
439 ffio_wfourcc(pb, "chan"); // Type
440 avio_w8(pb, 0); // Version
441 avio_wb24(pb, 0); // Flags
442 avio_wb32(pb, layout_tag); // mChannelLayoutTag
443 avio_wb32(pb, bitmap); // mChannelBitmap
444 avio_wb32(pb, 0); // mNumberChannelDescriptions
446 return update_size(pb, pos);
449 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
451 int64_t pos = avio_tell(pb);
453 avio_wb32(pb, 0); /* size */
454 ffio_wfourcc(pb, "wave");
456 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
457 avio_wb32(pb, 12); /* size */
458 ffio_wfourcc(pb, "frma");
459 avio_wl32(pb, track->tag);
462 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
463 /* useless atom needed by mplayer, ipod, not needed by quicktime */
464 avio_wb32(pb, 12); /* size */
465 ffio_wfourcc(pb, "mp4a");
467 mov_write_esds_tag(pb, track);
468 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
469 mov_write_enda_tag(pb);
470 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
471 mov_write_enda_tag_be(pb);
472 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
473 mov_write_amr_tag(pb, track);
474 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
475 mov_write_ac3_tag(pb, track);
476 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
477 track->enc->codec_id == AV_CODEC_ID_QDM2) {
478 mov_write_extradata_tag(pb, track);
479 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
480 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
481 mov_write_ms_tag(pb, track);
484 avio_wb32(pb, 8); /* size */
485 avio_wb32(pb, 0); /* null tag */
487 return update_size(pb, pos);
490 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
493 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
494 int unescaped_size, seq_found = 0;
495 int level = 0, interlace = 0;
496 int packet_seq = track->vc1_info.packet_seq;
497 int packet_entry = track->vc1_info.packet_entry;
498 int slices = track->vc1_info.slices;
501 if (track->start_dts == AV_NOPTS_VALUE) {
502 /* No packets written yet, vc1_info isn't authoritative yet. */
503 /* Assume inline sequence and entry headers. This will be
504 * overwritten at the end if the file is seekable. */
505 packet_seq = packet_entry = 1;
508 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
510 return AVERROR(ENOMEM);
511 start = find_next_marker(track->vos_data, end);
512 for (next = start; next < end; start = next) {
515 next = find_next_marker(start + 4, end);
516 size = next - start - 4;
519 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
520 init_get_bits(&gb, unescaped, 8 * unescaped_size);
521 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
522 int profile = get_bits(&gb, 2);
523 if (profile != PROFILE_ADVANCED) {
525 return AVERROR(ENOSYS);
528 level = get_bits(&gb, 3);
529 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
531 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
532 skip_bits(&gb, 1); /* broadcast */
533 interlace = get_bits1(&gb);
534 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
539 return AVERROR(ENOSYS);
542 init_put_bits(&pbc, buf, 7);
543 /* VC1DecSpecStruc */
544 put_bits(&pbc, 4, 12); /* profile - advanced */
545 put_bits(&pbc, 3, level);
546 put_bits(&pbc, 1, 0); /* reserved */
547 /* VC1AdvDecSpecStruc */
548 put_bits(&pbc, 3, level);
549 put_bits(&pbc, 1, 0); /* cbr */
550 put_bits(&pbc, 6, 0); /* reserved */
551 put_bits(&pbc, 1, !interlace); /* no interlace */
552 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
553 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
554 put_bits(&pbc, 1, !slices); /* no slice code */
555 put_bits(&pbc, 1, 0); /* no bframe */
556 put_bits(&pbc, 1, 0); /* reserved */
559 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
560 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
562 put_bits32(&pbc, 0xffffffff);
564 flush_put_bits(&pbc);
571 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
573 uint8_t buf[7] = { 0 };
576 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
579 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
580 ffio_wfourcc(pb, "dvc1");
581 track->vc1_info.struct_offset = avio_tell(pb);
582 avio_write(pb, buf, sizeof(buf));
583 avio_write(pb, track->vos_data, track->vos_len);
588 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
590 avio_wb32(pb, track->vos_len + 8);
591 ffio_wfourcc(pb, "glbl");
592 avio_write(pb, track->vos_data, track->vos_len);
593 return 8 + track->vos_len;
597 * Compute flags for 'lpcm' tag.
598 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
600 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
603 case AV_CODEC_ID_PCM_F32BE:
604 case AV_CODEC_ID_PCM_F64BE:
606 case AV_CODEC_ID_PCM_F32LE:
607 case AV_CODEC_ID_PCM_F64LE:
609 case AV_CODEC_ID_PCM_U8:
611 case AV_CODEC_ID_PCM_S16BE:
612 case AV_CODEC_ID_PCM_S24BE:
613 case AV_CODEC_ID_PCM_S32BE:
615 case AV_CODEC_ID_PCM_S8:
616 case AV_CODEC_ID_PCM_S16LE:
617 case AV_CODEC_ID_PCM_S24LE:
618 case AV_CODEC_ID_PCM_S32LE:
625 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
629 if (cluster_idx >= track->entry)
632 if (cluster_idx + 1 == track->entry)
633 next_dts = track->track_duration + track->start_dts;
635 next_dts = track->cluster[cluster_idx + 1].dts;
637 next_dts -= track->cluster[cluster_idx].dts;
639 av_assert0(next_dts >= 0);
640 av_assert0(next_dts <= INT_MAX);
645 static int get_samples_per_packet(MOVTrack *track)
647 int i, first_duration;
649 // return track->enc->frame_size;
651 /* use 1 for raw PCM */
652 if (!track->audio_vbr)
655 /* check to see if duration is constant for all clusters */
658 first_duration = get_cluster_duration(track, 0);
659 for (i = 1; i < track->entry; i++) {
660 if (get_cluster_duration(track, i) != first_duration)
663 return first_duration;
666 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
668 int64_t pos = avio_tell(pb);
670 uint32_t tag = track->tag;
672 if (track->mode == MODE_MOV) {
673 if (track->timescale > UINT16_MAX) {
674 if (mov_get_lpcm_flags(track->enc->codec_id))
675 tag = AV_RL32("lpcm");
677 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
678 mov_pcm_be_gt16(track->enc->codec_id) ||
679 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
680 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
681 track->enc->codec_id == AV_CODEC_ID_QDM2) {
686 avio_wb32(pb, 0); /* size */
687 avio_wl32(pb, tag); // store it byteswapped
688 avio_wb32(pb, 0); /* Reserved */
689 avio_wb16(pb, 0); /* Reserved */
690 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
692 /* SoundDescription */
693 avio_wb16(pb, version); /* Version */
694 avio_wb16(pb, 0); /* Revision level */
695 avio_wb32(pb, 0); /* Reserved */
700 avio_wb16(pb, 0xfffe);
702 avio_wb32(pb, 0x00010000);
704 avio_wb64(pb, av_double2int(track->enc->sample_rate));
705 avio_wb32(pb, track->enc->channels);
706 avio_wb32(pb, 0x7F000000);
707 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
708 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
709 avio_wb32(pb, track->sample_size);
710 avio_wb32(pb, get_samples_per_packet(track));
712 if (track->mode == MODE_MOV) {
713 avio_wb16(pb, track->enc->channels);
714 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
715 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
716 avio_wb16(pb, 8); /* bits per sample */
719 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
720 } else { /* reserved for mp4/3gp */
726 avio_wb16(pb, 0); /* packet size (= 0) */
727 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
728 track->enc->sample_rate : 0);
729 avio_wb16(pb, 0); /* Reserved */
732 if (version == 1) { /* SoundDescription V1 extended info */
733 if (mov_pcm_le_gt16(track->enc->codec_id) ||
734 mov_pcm_be_gt16(track->enc->codec_id))
735 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
737 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
738 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
739 avio_wb32(pb, track->sample_size); /* Bytes per frame */
740 avio_wb32(pb, 2); /* Bytes per sample */
743 if (track->mode == MODE_MOV &&
744 (track->enc->codec_id == AV_CODEC_ID_AAC ||
745 track->enc->codec_id == AV_CODEC_ID_AC3 ||
746 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
747 track->enc->codec_id == AV_CODEC_ID_ALAC ||
748 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
749 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
750 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
751 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
752 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
753 mov_write_wave_tag(pb, track);
754 else if (track->tag == MKTAG('m','p','4','a'))
755 mov_write_esds_tag(pb, track);
756 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
757 mov_write_amr_tag(pb, track);
758 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
759 mov_write_ac3_tag(pb, track);
760 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
761 mov_write_extradata_tag(pb, track);
762 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
763 mov_write_wfex_tag(pb, track);
764 else if (track->vos_len > 0)
765 mov_write_glbl_tag(pb, track);
767 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
768 mov_write_chan_tag(pb, track);
770 return update_size(pb, pos);
773 static int mov_write_d263_tag(AVIOContext *pb)
775 avio_wb32(pb, 0xf); /* size */
776 ffio_wfourcc(pb, "d263");
777 ffio_wfourcc(pb, "FFMP");
778 avio_w8(pb, 0); /* decoder version */
779 /* FIXME use AVCodecContext level/profile, when encoder will set values */
780 avio_w8(pb, 0xa); /* level */
781 avio_w8(pb, 0); /* profile */
785 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
787 int64_t pos = avio_tell(pb);
790 ffio_wfourcc(pb, "avcC");
791 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
792 return update_size(pb, pos);
795 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
797 int64_t pos = avio_tell(pb);
800 ffio_wfourcc(pb, "hvcC");
801 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
802 return update_size(pb, pos);
805 /* also used by all avid codecs (dv, imx, meridien) and their variants */
806 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
809 avio_wb32(pb, 24); /* size */
810 ffio_wfourcc(pb, "ACLR");
811 ffio_wfourcc(pb, "ACLR");
812 ffio_wfourcc(pb, "0001");
813 if (track->enc->color_range == AVCOL_RANGE_MPEG) { /* Legal range (16-235) */
814 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
815 } else { /* Full range (0-255) */
816 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
818 avio_wb32(pb, 0); /* unknown */
820 avio_wb32(pb, 24); /* size */
821 ffio_wfourcc(pb, "APRG");
822 ffio_wfourcc(pb, "APRG");
823 ffio_wfourcc(pb, "0001");
824 avio_wb32(pb, 1); /* unknown */
825 avio_wb32(pb, 0); /* unknown */
827 avio_wb32(pb, 120); /* size */
828 ffio_wfourcc(pb, "ARES");
829 ffio_wfourcc(pb, "ARES");
830 ffio_wfourcc(pb, "0001");
831 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
832 avio_wb32(pb, track->enc->width);
833 /* values below are based on samples created with quicktime and avid codecs */
834 if (track->vos_data[5] & 2) { // interlaced
835 avio_wb32(pb, track->enc->height / 2);
836 avio_wb32(pb, 2); /* unknown */
837 avio_wb32(pb, 0); /* unknown */
838 avio_wb32(pb, 4); /* unknown */
840 avio_wb32(pb, track->enc->height);
841 avio_wb32(pb, 1); /* unknown */
842 avio_wb32(pb, 0); /* unknown */
843 if (track->enc->height == 1080)
844 avio_wb32(pb, 5); /* unknown */
846 avio_wb32(pb, 6); /* unknown */
849 for (i = 0; i < 10; i++)
852 /* extra padding for stsd needed */
857 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
859 int tag = track->enc->codec_tag;
861 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
864 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
865 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
866 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
867 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
868 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
869 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
870 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
871 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
872 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
877 static const AVCodecTag codec_ipod_tags[] = {
878 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
879 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
880 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
881 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
882 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
883 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
884 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
885 { AV_CODEC_ID_NONE, 0 },
888 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
890 int tag = track->enc->codec_tag;
892 // keep original tag for subs, ipod supports both formats
893 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
894 (tag == MKTAG('t', 'x', '3', 'g') ||
895 tag == MKTAG('t', 'e', 'x', 't'))))
896 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
898 if (!av_match_ext(s->filename, "m4a") &&
899 !av_match_ext(s->filename, "m4b") &&
900 !av_match_ext(s->filename, "m4v"))
901 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
902 "Quicktime/Ipod might not play the file\n");
907 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
911 if (track->enc->width == 720) { /* SD */
912 if (track->enc->height == 480) { /* NTSC */
913 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
914 else tag = MKTAG('d','v','c',' ');
915 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
916 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
917 else tag = MKTAG('d','v','p','p');
918 } else if (track->enc->height == 720) { /* HD 720 line */
919 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
920 else tag = MKTAG('d','v','h','p');
921 } else if (track->enc->height == 1080) { /* HD 1080 line */
922 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
923 else tag = MKTAG('d','v','h','6');
925 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
932 static AVRational find_fps(AVFormatContext *s, AVStream *st)
934 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
935 /* if the codec time base makes no sense, try to fallback on stream frame rate */
936 if (av_timecode_check_frame_rate(rate) < 0) {
937 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
938 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
939 rate = st->avg_frame_rate;
945 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
947 int tag = track->enc->codec_tag;
948 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
949 AVStream *st = track->st;
950 int rate = av_q2d(find_fps(s, st));
953 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
955 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
956 if (track->enc->width == 1280 && track->enc->height == 720) {
958 if (rate == 24) tag = MKTAG('x','d','v','4');
959 else if (rate == 25) tag = MKTAG('x','d','v','5');
960 else if (rate == 30) tag = MKTAG('x','d','v','1');
961 else if (rate == 50) tag = MKTAG('x','d','v','a');
962 else if (rate == 60) tag = MKTAG('x','d','v','9');
964 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
966 if (rate == 24) tag = MKTAG('x','d','v','6');
967 else if (rate == 25) tag = MKTAG('x','d','v','7');
968 else if (rate == 30) tag = MKTAG('x','d','v','8');
970 if (rate == 25) tag = MKTAG('x','d','v','3');
971 else if (rate == 30) tag = MKTAG('x','d','v','2');
973 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
975 if (rate == 24) tag = MKTAG('x','d','v','d');
976 else if (rate == 25) tag = MKTAG('x','d','v','e');
977 else if (rate == 30) tag = MKTAG('x','d','v','f');
979 if (rate == 25) tag = MKTAG('x','d','v','c');
980 else if (rate == 30) tag = MKTAG('x','d','v','b');
983 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
984 if (track->enc->width == 1280 && track->enc->height == 720) {
986 if (rate == 24) tag = MKTAG('x','d','5','4');
987 else if (rate == 25) tag = MKTAG('x','d','5','5');
988 else if (rate == 30) tag = MKTAG('x','d','5','1');
989 else if (rate == 50) tag = MKTAG('x','d','5','a');
990 else if (rate == 60) tag = MKTAG('x','d','5','9');
992 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
994 if (rate == 24) tag = MKTAG('x','d','5','d');
995 else if (rate == 25) tag = MKTAG('x','d','5','e');
996 else if (rate == 30) tag = MKTAG('x','d','5','f');
998 if (rate == 25) tag = MKTAG('x','d','5','c');
999 else if (rate == 30) tag = MKTAG('x','d','5','b');
1007 static const struct {
1008 enum AVPixelFormat pix_fmt;
1011 } mov_pix_fmt_tags[] = {
1012 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1013 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1014 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1015 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1016 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1017 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1018 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1019 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1020 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1021 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1022 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1023 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1024 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1025 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1026 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1029 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1031 int tag = track->enc->codec_tag;
1033 enum AVPixelFormat pix_fmt;
1035 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1036 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1037 tag = mov_pix_fmt_tags[i].tag;
1038 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1039 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1044 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1045 track->enc->bits_per_coded_sample);
1046 if (tag == MKTAG('r','a','w',' ') &&
1047 track->enc->pix_fmt != pix_fmt &&
1048 track->enc->pix_fmt != AV_PIX_FMT_NONE)
1049 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1050 av_get_pix_fmt_name(track->enc->pix_fmt));
1054 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1056 int tag = track->enc->codec_tag;
1058 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1059 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1060 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1061 track->enc->codec_id == AV_CODEC_ID_H263 ||
1062 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1063 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1064 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1065 tag = mov_get_dv_codec_tag(s, track);
1066 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1067 tag = mov_get_rawvideo_codec_tag(s, track);
1068 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1069 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1070 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1071 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1072 if (!tag) { // if no mac fcc found, try with Microsoft tags
1073 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1075 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1076 "the file may be unplayable!\n");
1078 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1079 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1080 if (!tag) { // if no mac fcc found, try with Microsoft tags
1081 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1083 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1084 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1085 "the file may be unplayable!\n");
1088 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1089 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1095 static const AVCodecTag codec_3gp_tags[] = {
1096 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1097 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1098 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1099 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1100 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1101 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1102 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1103 { AV_CODEC_ID_NONE, 0 },
1106 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1107 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1108 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1109 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1110 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1111 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1112 { AV_CODEC_ID_NONE, 0 },
1115 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1119 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1120 tag = mp4_get_codec_tag(s, track);
1121 else if (track->mode == MODE_ISM) {
1122 tag = mp4_get_codec_tag(s, track);
1123 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1124 tag = MKTAG('w', 'm', 'a', ' ');
1125 } else if (track->mode == MODE_IPOD)
1126 tag = ipod_get_codec_tag(s, track);
1127 else if (track->mode & MODE_3GP)
1128 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1129 else if (track->mode == MODE_F4V)
1130 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1132 tag = mov_get_codec_tag(s, track);
1137 /** Write uuid atom.
1138 * Needed to make file play in iPods running newest firmware
1139 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1141 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1144 ffio_wfourcc(pb, "uuid");
1145 avio_wb32(pb, 0x6b6840f2);
1146 avio_wb32(pb, 0x5f244fc5);
1147 avio_wb32(pb, 0xba39a51b);
1148 avio_wb32(pb, 0xcf0323f3);
1153 static const uint16_t fiel_data[] = {
1154 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1157 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1159 unsigned mov_field_order = 0;
1160 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1161 mov_field_order = fiel_data[track->enc->field_order];
1165 ffio_wfourcc(pb, "fiel");
1166 avio_wb16(pb, mov_field_order);
1170 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1172 int64_t pos = avio_tell(pb);
1173 avio_wb32(pb, 0); /* size */
1174 avio_wl32(pb, track->tag); // store it byteswapped
1175 avio_wb32(pb, 0); /* Reserved */
1176 avio_wb16(pb, 0); /* Reserved */
1177 avio_wb16(pb, 1); /* Data-reference index */
1179 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1180 mov_write_esds_tag(pb, track);
1181 else if (track->enc->extradata_size)
1182 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1184 return update_size(pb, pos);
1187 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1190 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1191 track->enc->sample_aspect_ratio.den, INT_MAX);
1194 ffio_wfourcc(pb, "pasp");
1195 avio_wb32(pb, sar.num);
1196 avio_wb32(pb, sar.den);
1200 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1202 AVDictionaryEntry *encoder;
1203 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1204 || (track->enc->width == 1440 && track->enc->height == 1080)
1205 || (track->enc->width == 1920 && track->enc->height == 1080);
1207 if (track->mode == MODE_MOV &&
1208 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1209 av_strlcpy(compressor_name, encoder->value, 32);
1210 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1211 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1212 AVStream *st = track->st;
1213 int rate = av_q2d(find_fps(NULL, st));
1214 av_strlcatf(compressor_name, len, "XDCAM");
1215 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1216 av_strlcatf(compressor_name, len, " HD422");
1217 } else if(track->enc->width == 1440) {
1218 av_strlcatf(compressor_name, len, " HD");
1220 av_strlcatf(compressor_name, len, " EX");
1222 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1224 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1228 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1230 int64_t pos = avio_tell(pb);
1231 char compressor_name[32] = { 0 };
1233 avio_wb32(pb, 0); /* size */
1234 avio_wl32(pb, track->tag); // store it byteswapped
1235 avio_wb32(pb, 0); /* Reserved */
1236 avio_wb16(pb, 0); /* Reserved */
1237 avio_wb16(pb, 1); /* Data-reference index */
1239 avio_wb16(pb, 0); /* Codec stream version */
1240 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1241 if (track->mode == MODE_MOV) {
1242 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1243 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1244 avio_wb32(pb, 0); /* Temporal Quality */
1245 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1247 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1248 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1251 avio_wb32(pb, 0); /* Reserved */
1252 avio_wb32(pb, 0); /* Reserved */
1253 avio_wb32(pb, 0); /* Reserved */
1255 avio_wb16(pb, track->enc->width); /* Video width */
1256 avio_wb16(pb, track->height); /* Video height */
1257 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1258 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1259 avio_wb32(pb, 0); /* Data size (= 0) */
1260 avio_wb16(pb, 1); /* Frame count (= 1) */
1262 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1263 find_compressor(compressor_name, 32, track);
1264 avio_w8(pb, strlen(compressor_name));
1265 avio_write(pb, compressor_name, 31);
1267 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1268 avio_wb16(pb, track->enc->bits_per_coded_sample);
1270 avio_wb16(pb, 0x18); /* Reserved */
1271 avio_wb16(pb, 0xffff); /* Reserved */
1272 if (track->tag == MKTAG('m','p','4','v'))
1273 mov_write_esds_tag(pb, track);
1274 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1275 mov_write_d263_tag(pb);
1276 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1277 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1278 mov_write_extradata_tag(pb, track);
1280 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1281 mov_write_avid_tag(pb, track);
1282 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1283 mov_write_hvcc_tag(pb, track);
1284 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1285 mov_write_avcc_tag(pb, track);
1286 if (track->mode == MODE_IPOD)
1287 mov_write_uuid_tag_ipod(pb);
1288 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1289 mov_write_dvc1_tag(pb, track);
1290 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1291 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1292 /* Don't write any potential extradata here - the cropping
1293 * is signalled via the normal width/height fields. */
1294 } else if (track->vos_len > 0)
1295 mov_write_glbl_tag(pb, track);
1297 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1298 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1299 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1300 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1301 mov_write_fiel_tag(pb, track);
1303 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1304 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1305 mov_write_pasp_tag(pb, track);
1308 return update_size(pb, pos);
1311 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1313 int64_t pos = avio_tell(pb);
1314 avio_wb32(pb, 0); /* size */
1315 ffio_wfourcc(pb, "rtp ");
1316 avio_wb32(pb, 0); /* Reserved */
1317 avio_wb16(pb, 0); /* Reserved */
1318 avio_wb16(pb, 1); /* Data-reference index */
1320 avio_wb16(pb, 1); /* Hint track version */
1321 avio_wb16(pb, 1); /* Highest compatible version */
1322 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1324 avio_wb32(pb, 12); /* size */
1325 ffio_wfourcc(pb, "tims");
1326 avio_wb32(pb, track->timescale);
1328 return update_size(pb, pos);
1331 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1333 int64_t pos = avio_tell(pb);
1335 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1336 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1338 if (nb_frames > 255) {
1339 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1340 return AVERROR(EINVAL);
1343 avio_wb32(pb, 0); /* size */
1344 ffio_wfourcc(pb, "tmcd"); /* Data format */
1345 avio_wb32(pb, 0); /* Reserved */
1346 avio_wb32(pb, 1); /* Data reference index */
1347 avio_wb32(pb, 0); /* Flags */
1348 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1349 avio_wb32(pb, track->timescale); /* Timescale */
1350 avio_wb32(pb, frame_duration); /* Frame duration */
1351 avio_w8(pb, nb_frames); /* Number of frames */
1352 avio_wb24(pb, 0); /* Reserved */
1353 /* TODO: source reference string */
1356 avio_wb32(pb, 0); /* size */
1357 ffio_wfourcc(pb, "tmcd"); /* Data format */
1358 avio_wb32(pb, 0); /* Reserved */
1359 avio_wb32(pb, 1); /* Data reference index */
1360 if (track->enc->extradata_size)
1361 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1363 return update_size(pb, pos);
1366 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1368 int64_t pos = avio_tell(pb);
1369 avio_wb32(pb, 0); /* size */
1370 ffio_wfourcc(pb, "stsd");
1371 avio_wb32(pb, 0); /* version & flags */
1372 avio_wb32(pb, 1); /* entry count */
1373 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1374 mov_write_video_tag(pb, track);
1375 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1376 mov_write_audio_tag(pb, track);
1377 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1378 mov_write_subtitle_tag(pb, track);
1379 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1380 mov_write_rtp_tag(pb, track);
1381 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1382 mov_write_tmcd_tag(pb, track);
1383 return update_size(pb, pos);
1386 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1388 MOVStts *ctts_entries;
1389 uint32_t entries = 0;
1393 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
1394 ctts_entries[0].count = 1;
1395 ctts_entries[0].duration = track->cluster[0].cts;
1396 for (i = 1; i < track->entry; i++) {
1397 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1398 ctts_entries[entries].count++; /* compress */
1401 ctts_entries[entries].duration = track->cluster[i].cts;
1402 ctts_entries[entries].count = 1;
1405 entries++; /* last one */
1406 atom_size = 16 + (entries * 8);
1407 avio_wb32(pb, atom_size); /* size */
1408 ffio_wfourcc(pb, "ctts");
1409 avio_wb32(pb, 0); /* version & flags */
1410 avio_wb32(pb, entries); /* entry count */
1411 for (i = 0; i < entries; i++) {
1412 avio_wb32(pb, ctts_entries[i].count);
1413 avio_wb32(pb, ctts_entries[i].duration);
1415 av_free(ctts_entries);
1419 /* Time to sample atom */
1420 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1422 MOVStts *stts_entries;
1423 uint32_t entries = -1;
1427 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1428 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1429 stts_entries[0].count = track->sample_count;
1430 stts_entries[0].duration = 1;
1433 stts_entries = track->entry ?
1434 av_malloc_array(track->entry, sizeof(*stts_entries)) : /* worst case */
1436 for (i = 0; i < track->entry; i++) {
1437 int duration = get_cluster_duration(track, i);
1438 if (i && duration == stts_entries[entries].duration) {
1439 stts_entries[entries].count++; /* compress */
1442 stts_entries[entries].duration = duration;
1443 stts_entries[entries].count = 1;
1446 entries++; /* last one */
1448 atom_size = 16 + (entries * 8);
1449 avio_wb32(pb, atom_size); /* size */
1450 ffio_wfourcc(pb, "stts");
1451 avio_wb32(pb, 0); /* version & flags */
1452 avio_wb32(pb, entries); /* entry count */
1453 for (i = 0; i < entries; i++) {
1454 avio_wb32(pb, stts_entries[i].count);
1455 avio_wb32(pb, stts_entries[i].duration);
1457 av_free(stts_entries);
1461 static int mov_write_dref_tag(AVIOContext *pb)
1463 avio_wb32(pb, 28); /* size */
1464 ffio_wfourcc(pb, "dref");
1465 avio_wb32(pb, 0); /* version & flags */
1466 avio_wb32(pb, 1); /* entry count */
1468 avio_wb32(pb, 0xc); /* size */
1469 //FIXME add the alis and rsrc atom
1470 ffio_wfourcc(pb, "url ");
1471 avio_wb32(pb, 1); /* version & flags */
1476 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1478 int64_t pos = avio_tell(pb);
1479 avio_wb32(pb, 0); /* size */
1480 ffio_wfourcc(pb, "stbl");
1481 mov_write_stsd_tag(pb, track);
1482 mov_write_stts_tag(pb, track);
1483 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1484 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1485 track->has_keyframes && track->has_keyframes < track->entry)
1486 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1487 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1488 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1489 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1490 track->flags & MOV_TRACK_CTTS)
1491 mov_write_ctts_tag(pb, track);
1492 mov_write_stsc_tag(pb, track);
1493 mov_write_stsz_tag(pb, track);
1494 mov_write_stco_tag(pb, track);
1495 return update_size(pb, pos);
1498 static int mov_write_dinf_tag(AVIOContext *pb)
1500 int64_t pos = avio_tell(pb);
1501 avio_wb32(pb, 0); /* size */
1502 ffio_wfourcc(pb, "dinf");
1503 mov_write_dref_tag(pb);
1504 return update_size(pb, pos);
1507 static int mov_write_nmhd_tag(AVIOContext *pb)
1510 ffio_wfourcc(pb, "nmhd");
1515 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1517 int64_t pos = avio_tell(pb);
1518 const char *font = "Lucida Grande";
1519 avio_wb32(pb, 0); /* size */
1520 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1521 avio_wb32(pb, 0); /* version & flags */
1522 avio_wb16(pb, 0); /* text font */
1523 avio_wb16(pb, 0); /* text face */
1524 avio_wb16(pb, 12); /* text size */
1525 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1526 avio_wb16(pb, 0x0000); /* text color (red) */
1527 avio_wb16(pb, 0x0000); /* text color (green) */
1528 avio_wb16(pb, 0x0000); /* text color (blue) */
1529 avio_wb16(pb, 0xffff); /* background color (red) */
1530 avio_wb16(pb, 0xffff); /* background color (green) */
1531 avio_wb16(pb, 0xffff); /* background color (blue) */
1532 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1533 avio_write(pb, font, strlen(font)); /* font name */
1534 return update_size(pb, pos);
1537 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1539 int64_t pos = avio_tell(pb);
1540 avio_wb32(pb, 0); /* size */
1541 ffio_wfourcc(pb, "gmhd");
1542 avio_wb32(pb, 0x18); /* gmin size */
1543 ffio_wfourcc(pb, "gmin");/* generic media info */
1544 avio_wb32(pb, 0); /* version & flags */
1545 avio_wb16(pb, 0x40); /* graphics mode = */
1546 avio_wb16(pb, 0x8000); /* opColor (r?) */
1547 avio_wb16(pb, 0x8000); /* opColor (g?) */
1548 avio_wb16(pb, 0x8000); /* opColor (b?) */
1549 avio_wb16(pb, 0); /* balance */
1550 avio_wb16(pb, 0); /* reserved */
1553 * This special text atom is required for
1554 * Apple Quicktime chapters. The contents
1555 * don't appear to be documented, so the
1556 * bytes are copied verbatim.
1558 if (track->tag != MKTAG('c','6','0','8')) {
1559 avio_wb32(pb, 0x2C); /* size */
1560 ffio_wfourcc(pb, "text");
1561 avio_wb16(pb, 0x01);
1562 avio_wb32(pb, 0x00);
1563 avio_wb32(pb, 0x00);
1564 avio_wb32(pb, 0x00);
1565 avio_wb32(pb, 0x01);
1566 avio_wb32(pb, 0x00);
1567 avio_wb32(pb, 0x00);
1568 avio_wb32(pb, 0x00);
1569 avio_wb32(pb, 0x00004000);
1570 avio_wb16(pb, 0x0000);
1573 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1574 int64_t tmcd_pos = avio_tell(pb);
1575 avio_wb32(pb, 0); /* size */
1576 ffio_wfourcc(pb, "tmcd");
1577 mov_write_tcmi_tag(pb, track);
1578 update_size(pb, tmcd_pos);
1580 return update_size(pb, pos);
1583 static int mov_write_smhd_tag(AVIOContext *pb)
1585 avio_wb32(pb, 16); /* size */
1586 ffio_wfourcc(pb, "smhd");
1587 avio_wb32(pb, 0); /* version & flags */
1588 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1589 avio_wb16(pb, 0); /* reserved */
1593 static int mov_write_vmhd_tag(AVIOContext *pb)
1595 avio_wb32(pb, 0x14); /* size (always 0x14) */
1596 ffio_wfourcc(pb, "vmhd");
1597 avio_wb32(pb, 0x01); /* version & flags */
1598 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1602 static int is_clcp_track(MOVTrack *track)
1604 return track->tag == MKTAG('c','7','0','8') ||
1605 track->tag == MKTAG('c','6','0','8');
1608 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1610 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1611 int64_t pos = avio_tell(pb);
1615 descr = "DataHandler";
1618 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1619 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1621 descr = "VideoHandler";
1622 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1624 descr = "SoundHandler";
1625 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1626 if (is_clcp_track(track)) {
1628 descr = "ClosedCaptionHandler";
1630 if (track->tag == MKTAG('t','x','3','g')) {
1632 } else if (track->tag == MKTAG('m','p','4','s')) {
1637 descr = "SubtitleHandler";
1639 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1641 descr = "HintHandler";
1642 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1644 descr = "TimeCodeHandler";
1647 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1648 track->enc->codec_tag);
1650 av_log(track->enc, AV_LOG_WARNING,
1651 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1652 tag_buf, track->enc->codec_tag);
1656 avio_wb32(pb, 0); /* size */
1657 ffio_wfourcc(pb, "hdlr");
1658 avio_wb32(pb, 0); /* Version & flags */
1659 avio_write(pb, hdlr, 4); /* handler */
1660 ffio_wfourcc(pb, hdlr_type); /* handler type */
1661 avio_wb32(pb, 0); /* reserved */
1662 avio_wb32(pb, 0); /* reserved */
1663 avio_wb32(pb, 0); /* reserved */
1664 if (!track || track->mode == MODE_MOV)
1665 avio_w8(pb, strlen(descr)); /* pascal string */
1666 avio_write(pb, descr, strlen(descr)); /* handler description */
1667 if (track && track->mode != MODE_MOV)
1668 avio_w8(pb, 0); /* c string */
1669 return update_size(pb, pos);
1672 static int mov_write_hmhd_tag(AVIOContext *pb)
1674 /* This atom must be present, but leaving the values at zero
1675 * seems harmless. */
1676 avio_wb32(pb, 28); /* size */
1677 ffio_wfourcc(pb, "hmhd");
1678 avio_wb32(pb, 0); /* version, flags */
1679 avio_wb16(pb, 0); /* maxPDUsize */
1680 avio_wb16(pb, 0); /* avgPDUsize */
1681 avio_wb32(pb, 0); /* maxbitrate */
1682 avio_wb32(pb, 0); /* avgbitrate */
1683 avio_wb32(pb, 0); /* reserved */
1687 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1689 int64_t pos = avio_tell(pb);
1690 avio_wb32(pb, 0); /* size */
1691 ffio_wfourcc(pb, "minf");
1692 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1693 mov_write_vmhd_tag(pb);
1694 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1695 mov_write_smhd_tag(pb);
1696 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1697 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1698 mov_write_gmhd_tag(pb, track);
1700 mov_write_nmhd_tag(pb);
1702 } else if (track->tag == MKTAG('r','t','p',' ')) {
1703 mov_write_hmhd_tag(pb);
1704 } else if (track->tag == MKTAG('t','m','c','d')) {
1705 mov_write_gmhd_tag(pb, track);
1707 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1708 mov_write_hdlr_tag(pb, NULL);
1709 mov_write_dinf_tag(pb);
1710 mov_write_stbl_tag(pb, track);
1711 return update_size(pb, pos);
1714 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1716 int version = track->track_duration < INT32_MAX ? 0 : 1;
1718 if (track->mode == MODE_ISM)
1721 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1722 ffio_wfourcc(pb, "mdhd");
1723 avio_w8(pb, version);
1724 avio_wb24(pb, 0); /* flags */
1726 avio_wb64(pb, track->time);
1727 avio_wb64(pb, track->time);
1729 avio_wb32(pb, track->time); /* creation time */
1730 avio_wb32(pb, track->time); /* modification time */
1732 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1734 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1736 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1737 avio_wb16(pb, track->language); /* language */
1738 avio_wb16(pb, 0); /* reserved (quality) */
1740 if (version != 0 && track->mode == MODE_MOV) {
1741 av_log(NULL, AV_LOG_ERROR,
1742 "FATAL error, file duration too long for timebase, this file will not be\n"
1743 "playable with quicktime. Choose a different timebase or a different\n"
1744 "container format\n");
1750 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1752 int64_t pos = avio_tell(pb);
1753 avio_wb32(pb, 0); /* size */
1754 ffio_wfourcc(pb, "mdia");
1755 mov_write_mdhd_tag(pb, track);
1756 mov_write_hdlr_tag(pb, track);
1757 mov_write_minf_tag(pb, track);
1758 return update_size(pb, pos);
1761 /* transformation matrix
1765 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1766 int16_t d, int16_t tx, int16_t ty)
1768 avio_wb32(pb, a << 16); /* 16.16 format */
1769 avio_wb32(pb, b << 16); /* 16.16 format */
1770 avio_wb32(pb, 0); /* u in 2.30 format */
1771 avio_wb32(pb, c << 16); /* 16.16 format */
1772 avio_wb32(pb, d << 16); /* 16.16 format */
1773 avio_wb32(pb, 0); /* v in 2.30 format */
1774 avio_wb32(pb, tx << 16); /* 16.16 format */
1775 avio_wb32(pb, ty << 16); /* 16.16 format */
1776 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1779 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1780 MOVTrack *track, AVStream *st)
1782 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1783 track->timescale, AV_ROUND_UP);
1784 int version = duration < INT32_MAX ? 0 : 1;
1785 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1791 if (mov->per_stream_grouping)
1794 group = st->codec->codec_type;
1797 if (track->flags & MOV_TRACK_ENABLED)
1798 flags |= MOV_TKHD_FLAG_ENABLED;
1800 if (track->mode == MODE_ISM)
1803 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1804 ffio_wfourcc(pb, "tkhd");
1805 avio_w8(pb, version);
1806 avio_wb24(pb, flags);
1808 avio_wb64(pb, track->time);
1809 avio_wb64(pb, track->time);
1811 avio_wb32(pb, track->time); /* creation time */
1812 avio_wb32(pb, track->time); /* modification time */
1814 avio_wb32(pb, track->track_id); /* track-id */
1815 avio_wb32(pb, 0); /* reserved */
1817 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1819 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1821 avio_wb32(pb, 0); /* reserved */
1822 avio_wb32(pb, 0); /* reserved */
1823 avio_wb16(pb, 0); /* layer */
1824 avio_wb16(pb, group); /* alternate group) */
1825 /* Volume, only for audio */
1826 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1827 avio_wb16(pb, 0x0100);
1830 avio_wb16(pb, 0); /* reserved */
1832 /* Matrix structure */
1833 if (st && st->metadata) {
1834 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1835 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1837 if (rotation == 90) {
1838 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1839 } else if (rotation == 180) {
1840 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1841 } else if (rotation == 270) {
1842 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1844 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1846 /* Track width and height, for visual only */
1847 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1848 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1849 if (track->mode == MODE_MOV) {
1850 avio_wb32(pb, track->enc->width << 16);
1851 avio_wb32(pb, track->height << 16);
1853 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1854 if (!sample_aspect_ratio || track->height != track->enc->height)
1855 sample_aspect_ratio = 1;
1856 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1857 avio_wb32(pb, track->height * 0x10000);
1866 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1868 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1869 track->enc->sample_aspect_ratio.den);
1871 int64_t pos = avio_tell(pb);
1873 avio_wb32(pb, 0); /* size */
1874 ffio_wfourcc(pb, "tapt");
1877 ffio_wfourcc(pb, "clef");
1879 avio_wb32(pb, width << 16);
1880 avio_wb32(pb, track->enc->height << 16);
1883 ffio_wfourcc(pb, "prof");
1885 avio_wb32(pb, width << 16);
1886 avio_wb32(pb, track->enc->height << 16);
1889 ffio_wfourcc(pb, "enof");
1891 avio_wb32(pb, track->enc->width << 16);
1892 avio_wb32(pb, track->enc->height << 16);
1894 return update_size(pb, pos);
1897 // This box seems important for the psp playback ... without it the movie seems to hang
1898 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1900 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1901 track->timescale, AV_ROUND_UP);
1902 int version = duration < INT32_MAX ? 0 : 1;
1903 int entry_size, entry_count, size;
1904 int64_t delay, start_ct = track->cluster[0].cts;
1905 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1906 track->timescale, AV_ROUND_DOWN);
1907 version |= delay < INT32_MAX ? 0 : 1;
1909 entry_size = (version == 1) ? 20 : 12;
1910 entry_count = 1 + (delay > 0);
1911 size = 24 + entry_count * entry_size;
1913 /* write the atom data */
1914 avio_wb32(pb, size);
1915 ffio_wfourcc(pb, "edts");
1916 avio_wb32(pb, size - 8);
1917 ffio_wfourcc(pb, "elst");
1918 avio_w8(pb, version);
1919 avio_wb24(pb, 0); /* flags */
1921 avio_wb32(pb, entry_count);
1922 if (delay > 0) { /* add an empty edit to delay presentation */
1924 avio_wb64(pb, delay);
1927 avio_wb32(pb, delay);
1930 avio_wb32(pb, 0x00010000);
1932 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1933 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1939 avio_wb64(pb, duration);
1940 avio_wb64(pb, start_ct);
1942 avio_wb32(pb, duration);
1943 avio_wb32(pb, start_ct);
1945 avio_wb32(pb, 0x00010000);
1949 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1951 avio_wb32(pb, 20); // size
1952 ffio_wfourcc(pb, "tref");
1953 avio_wb32(pb, 12); // size (subatom)
1954 avio_wl32(pb, track->tref_tag);
1955 avio_wb32(pb, track->tref_id);
1959 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1960 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1962 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1963 ffio_wfourcc(pb, "uuid");
1964 ffio_wfourcc(pb, "USMT");
1965 avio_wb32(pb, 0x21d24fce);
1966 avio_wb32(pb, 0xbb88695c);
1967 avio_wb32(pb, 0xfac9c740);
1968 avio_wb32(pb, 0x1c); // another size here!
1969 ffio_wfourcc(pb, "MTDT");
1970 avio_wb32(pb, 0x00010012);
1971 avio_wb32(pb, 0x0a);
1972 avio_wb32(pb, 0x55c40000);
1978 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1980 AVFormatContext *ctx = track->rtp_ctx;
1981 char buf[1000] = "";
1984 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1985 NULL, NULL, 0, 0, ctx);
1986 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1989 avio_wb32(pb, len + 24);
1990 ffio_wfourcc(pb, "udta");
1991 avio_wb32(pb, len + 16);
1992 ffio_wfourcc(pb, "hnti");
1993 avio_wb32(pb, len + 8);
1994 ffio_wfourcc(pb, "sdp ");
1995 avio_write(pb, buf, len);
1999 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
2000 MOVTrack *track, AVStream *st)
2002 int64_t pos = avio_tell(pb);
2003 avio_wb32(pb, 0); /* size */
2004 ffio_wfourcc(pb, "trak");
2005 mov_write_tkhd_tag(pb, mov, track, st);
2006 if (supports_edts(mov))
2007 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
2008 if (track->tref_tag)
2009 mov_write_tref_tag(pb, track);
2010 mov_write_mdia_tag(pb, track);
2011 if (track->mode == MODE_PSP)
2012 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
2013 if (track->tag == MKTAG('r','t','p',' '))
2014 mov_write_udta_sdp(pb, track);
2015 if (track->mode == MODE_MOV) {
2016 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2017 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
2018 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
2019 mov_write_tapt_tag(pb, track);
2022 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
2023 mov_write_tapt_tag(pb, track);
2026 return update_size(pb, pos);
2029 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
2031 int i, has_audio = 0, has_video = 0;
2032 int64_t pos = avio_tell(pb);
2033 int audio_profile = mov->iods_audio_profile;
2034 int video_profile = mov->iods_video_profile;
2035 for (i = 0; i < mov->nb_streams; i++) {
2036 if (mov->tracks[i].entry > 0) {
2037 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
2038 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
2041 if (audio_profile < 0)
2042 audio_profile = 0xFF - has_audio;
2043 if (video_profile < 0)
2044 video_profile = 0xFF - has_video;
2045 avio_wb32(pb, 0x0); /* size */
2046 ffio_wfourcc(pb, "iods");
2047 avio_wb32(pb, 0); /* version & flags */
2048 put_descr(pb, 0x10, 7);
2049 avio_wb16(pb, 0x004f);
2052 avio_w8(pb, audio_profile);
2053 avio_w8(pb, video_profile);
2055 return update_size(pb, pos);
2058 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2060 avio_wb32(pb, 0x20); /* size */
2061 ffio_wfourcc(pb, "trex");
2062 avio_wb32(pb, 0); /* version & flags */
2063 avio_wb32(pb, track->track_id); /* track ID */
2064 avio_wb32(pb, 1); /* default sample description index */
2065 avio_wb32(pb, 0); /* default sample duration */
2066 avio_wb32(pb, 0); /* default sample size */
2067 avio_wb32(pb, 0); /* default sample flags */
2071 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2073 int64_t pos = avio_tell(pb);
2075 avio_wb32(pb, 0x0); /* size */
2076 ffio_wfourcc(pb, "mvex");
2077 for (i = 0; i < mov->nb_streams; i++)
2078 mov_write_trex_tag(pb, &mov->tracks[i]);
2079 return update_size(pb, pos);
2082 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2084 int max_track_id = 1, i;
2085 int64_t max_track_len_temp, max_track_len = 0;
2088 for (i = 0; i < mov->nb_streams; i++) {
2089 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2090 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2092 mov->tracks[i].timescale,
2094 if (max_track_len < max_track_len_temp)
2095 max_track_len = max_track_len_temp;
2096 if (max_track_id < mov->tracks[i].track_id)
2097 max_track_id = mov->tracks[i].track_id;
2101 version = max_track_len < UINT32_MAX ? 0 : 1;
2102 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2103 ffio_wfourcc(pb, "mvhd");
2104 avio_w8(pb, version);
2105 avio_wb24(pb, 0); /* flags */
2107 avio_wb64(pb, mov->time);
2108 avio_wb64(pb, mov->time);
2110 avio_wb32(pb, mov->time); /* creation time */
2111 avio_wb32(pb, mov->time); /* modification time */
2113 avio_wb32(pb, MOV_TIMESCALE);
2114 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2116 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2117 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2118 avio_wb16(pb, 0); /* reserved */
2119 avio_wb32(pb, 0); /* reserved */
2120 avio_wb32(pb, 0); /* reserved */
2122 /* Matrix structure */
2123 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2125 avio_wb32(pb, 0); /* reserved (preview time) */
2126 avio_wb32(pb, 0); /* reserved (preview duration) */
2127 avio_wb32(pb, 0); /* reserved (poster time) */
2128 avio_wb32(pb, 0); /* reserved (selection time) */
2129 avio_wb32(pb, 0); /* reserved (selection duration) */
2130 avio_wb32(pb, 0); /* reserved (current time) */
2131 avio_wb32(pb, max_track_id + 1); /* Next track id */
2135 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2138 avio_wb32(pb, 33); /* size */
2139 ffio_wfourcc(pb, "hdlr");
2142 ffio_wfourcc(pb, "mdir");
2143 ffio_wfourcc(pb, "appl");
2150 /* helper function to write a data tag with the specified string as data */
2151 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2154 int size = 16 + strlen(data);
2155 avio_wb32(pb, size); /* size */
2156 ffio_wfourcc(pb, "data");
2159 avio_write(pb, data, strlen(data));
2163 lang = ff_mov_iso639_to_lang("und", 1);
2164 avio_wb16(pb, strlen(data)); /* string length */
2165 avio_wb16(pb, lang);
2166 avio_write(pb, data, strlen(data));
2167 return strlen(data) + 4;
2171 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2172 const char *value, int lang, int long_style)
2175 if (value && value[0]) {
2176 int64_t pos = avio_tell(pb);
2177 avio_wb32(pb, 0); /* size */
2178 ffio_wfourcc(pb, name);
2179 mov_write_string_data_tag(pb, value, lang, long_style);
2180 size = update_size(pb, pos);
2185 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2186 const char *name, const char *tag,
2189 int l, lang = 0, len, len2;
2190 AVDictionaryEntry *t, *t2 = NULL;
2193 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2196 len = strlen(t->key);
2197 snprintf(tag2, sizeof(tag2), "%s-", tag);
2198 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2199 len2 = strlen(t2->key);
2200 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2201 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2206 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2209 /* iTunes bpm number */
2210 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2212 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2213 int size = 0, tmpo = t ? atoi(t->value) : 0;
2216 avio_wb32(pb, size);
2217 ffio_wfourcc(pb, "tmpo");
2218 avio_wb32(pb, size-8); /* size */
2219 ffio_wfourcc(pb, "data");
2220 avio_wb32(pb, 0x15); //type specifier
2222 avio_wb16(pb, tmpo); // data
2227 /* iTunes track or disc number */
2228 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2229 AVFormatContext *s, int disc)
2231 AVDictionaryEntry *t = av_dict_get(s->metadata,
2232 disc ? "disc" : "track",
2234 int size = 0, track = t ? atoi(t->value) : 0;
2237 char *slash = strchr(t->value, '/');
2239 tracks = atoi(slash + 1);
2240 avio_wb32(pb, 32); /* size */
2241 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2242 avio_wb32(pb, 24); /* size */
2243 ffio_wfourcc(pb, "data");
2244 avio_wb32(pb, 0); // 8 bytes empty
2246 avio_wb16(pb, 0); // empty
2247 avio_wb16(pb, track); // track / disc number
2248 avio_wb16(pb, tracks); // total track / disc number
2249 avio_wb16(pb, 0); // empty
2255 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2256 const char *name, const char *tag,
2259 AVDictionaryEntry *t = NULL;
2261 int size = 24 + len;
2263 if (len != 1 && len != 4)
2266 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2268 num = atoi(t->value);
2270 avio_wb32(pb, size);
2271 ffio_wfourcc(pb, name);
2272 avio_wb32(pb, size - 8);
2273 ffio_wfourcc(pb, "data");
2274 avio_wb32(pb, 0x15);
2276 if (len==4) avio_wb32(pb, num);
2277 else avio_w8 (pb, num);
2282 /* iTunes meta data list */
2283 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2286 int64_t pos = avio_tell(pb);
2287 avio_wb32(pb, 0); /* size */
2288 ffio_wfourcc(pb, "ilst");
2289 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2290 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2291 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2292 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2293 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2294 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2296 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2297 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2298 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2299 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2300 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2301 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2302 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2303 mov_write_string_metadata(s, pb, "desc", "description",1);
2304 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2305 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2306 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2307 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2308 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2309 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2310 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2311 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2312 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2313 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2314 mov_write_trkn_tag(pb, mov, s, 0); // track number
2315 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2316 mov_write_tmpo_tag(pb, s);
2317 return update_size(pb, pos);
2320 /* iTunes meta data tag */
2321 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2325 int64_t pos = avio_tell(pb);
2326 avio_wb32(pb, 0); /* size */
2327 ffio_wfourcc(pb, "meta");
2329 mov_write_itunes_hdlr_tag(pb, mov, s);
2330 mov_write_ilst_tag(pb, mov, s);
2331 size = update_size(pb, pos);
2335 static int utf8len(const uint8_t *b)
2340 GET_UTF8(val, *b++, return -1;)
2346 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2350 GET_UTF8(val, *b++, return -1;)
2353 avio_wb16(pb, 0x00);
2357 static uint16_t language_code(const char *str)
2359 return (((str[0] - 0x60) & 0x1F) << 10) +
2360 (((str[1] - 0x60) & 0x1F) << 5) +
2361 (( str[2] - 0x60) & 0x1F);
2364 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2365 const char *tag, const char *str)
2367 int64_t pos = avio_tell(pb);
2368 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2369 if (!t || !utf8len(t->value))
2371 avio_wb32(pb, 0); /* size */
2372 ffio_wfourcc(pb, tag); /* type */
2373 avio_wb32(pb, 0); /* version + flags */
2374 if (!strcmp(tag, "yrrc"))
2375 avio_wb16(pb, atoi(t->value));
2377 avio_wb16(pb, language_code("eng")); /* language */
2378 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2379 if (!strcmp(tag, "albm") &&
2380 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2381 avio_w8(pb, atoi(t->value));
2383 return update_size(pb, pos);
2386 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2388 int64_t pos = avio_tell(pb);
2389 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2391 avio_wb32(pb, 0); // size
2392 ffio_wfourcc(pb, "chpl");
2393 avio_wb32(pb, 0x01000000); // version + flags
2394 avio_wb32(pb, 0); // unknown
2395 avio_w8(pb, nb_chapters);
2397 for (i = 0; i < nb_chapters; i++) {
2398 AVChapter *c = s->chapters[i];
2399 AVDictionaryEntry *t;
2400 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2402 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2403 int len = FFMIN(strlen(t->value), 255);
2405 avio_write(pb, t->value, len);
2409 return update_size(pb, pos);
2412 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2415 AVIOContext *pb_buf;
2419 ret = avio_open_dyn_buf(&pb_buf);
2423 if (mov->mode & MODE_3GP) {
2424 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2425 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2426 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2427 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2428 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2429 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2430 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2431 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2432 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2433 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2434 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2435 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2436 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2437 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2438 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2439 // currently ignored by mov.c
2440 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2441 // add support for libquicktime, this atom is also actually read by mov.c
2442 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2443 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2444 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2446 /* iTunes meta data */
2447 mov_write_meta_tag(pb_buf, mov, s);
2451 mov_write_chpl_tag(pb_buf, s);
2453 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2454 avio_wb32(pb, size + 8);
2455 ffio_wfourcc(pb, "udta");
2456 avio_write(pb, buf, size);
2463 static void mov_write_psp_udta_tag(AVIOContext *pb,
2464 const char *str, const char *lang, int type)
2466 int len = utf8len(str) + 1;
2469 avio_wb16(pb, len * 2 + 10); /* size */
2470 avio_wb32(pb, type); /* type */
2471 avio_wb16(pb, language_code(lang)); /* language */
2472 avio_wb16(pb, 0x01); /* ? */
2473 ascii_to_wc(pb, str);
2476 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2478 MOVMuxContext *mov = s->priv_data;
2479 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2483 pos = avio_tell(pb);
2484 avio_wb32(pb, 0); /* size placeholder*/
2485 ffio_wfourcc(pb, "uuid");
2486 ffio_wfourcc(pb, "USMT");
2487 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2488 avio_wb32(pb, 0xbb88695c);
2489 avio_wb32(pb, 0xfac9c740);
2491 pos2 = avio_tell(pb);
2492 avio_wb32(pb, 0); /* size placeholder*/
2493 ffio_wfourcc(pb, "MTDT");
2497 avio_wb16(pb, 0x0C); /* size */
2498 avio_wb32(pb, 0x0B); /* type */
2499 avio_wb16(pb, language_code("und")); /* language */
2500 avio_wb16(pb, 0x0); /* ? */
2501 avio_wb16(pb, 0x021C); /* data */
2504 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2505 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2506 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2508 update_size(pb, pos2);
2509 return update_size(pb, pos);
2515 static void build_chunks(MOVTrack *trk)
2518 MOVIentry *chunk = &trk->cluster[0];
2519 uint64_t chunkSize = chunk->size;
2520 chunk->chunkNum = 1;
2521 if (trk->chunkCount)
2523 trk->chunkCount = 1;
2524 for (i = 1; i<trk->entry; i++){
2525 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2526 chunkSize + trk->cluster[i].size < (1<<20)){
2527 chunkSize += trk->cluster[i].size;
2528 chunk->samples_in_chunk += trk->cluster[i].entries;
2530 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2531 chunk=&trk->cluster[i];
2532 chunkSize = chunk->size;
2538 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2542 int64_t pos = avio_tell(pb);
2543 avio_wb32(pb, 0); /* size placeholder*/
2544 ffio_wfourcc(pb, "moov");
2546 for (i = 0; i < mov->nb_streams; i++) {
2547 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2550 mov->tracks[i].time = mov->time;
2551 mov->tracks[i].track_id = i + 1;
2553 if (mov->tracks[i].entry)
2554 build_chunks(&mov->tracks[i]);
2557 if (mov->chapter_track)
2558 for (i = 0; i < s->nb_streams; i++) {
2559 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2560 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2562 for (i = 0; i < mov->nb_streams; i++) {
2563 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2564 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2565 mov->tracks[i].tref_id =
2566 mov->tracks[mov->tracks[i].src_track].track_id;
2569 for (i = 0; i < mov->nb_streams; i++) {
2570 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2571 int src_trk = mov->tracks[i].src_track;
2572 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2573 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2574 //src_trk may have a different timescale than the tmcd track
2575 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2576 mov->tracks[i].timescale,
2577 mov->tracks[src_trk].timescale);
2581 mov_write_mvhd_tag(pb, mov);
2582 if (mov->mode != MODE_MOV && !mov->iods_skip)
2583 mov_write_iods_tag(pb, mov);
2584 for (i = 0; i < mov->nb_streams; i++) {
2585 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2586 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2589 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2590 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2592 if (mov->mode == MODE_PSP)
2593 mov_write_uuidusmt_tag(pb, s);
2595 mov_write_udta_tag(pb, mov, s);
2597 return update_size(pb, pos);
2600 static void param_write_int(AVIOContext *pb, const char *name, int value)
2602 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2605 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2607 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2610 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2613 len = FFMIN(sizeof(buf) / 2 - 1, len);
2614 ff_data_to_hex(buf, value, len, 0);
2615 buf[2 * len] = '\0';
2616 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2619 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2621 int64_t pos = avio_tell(pb);
2623 static const uint8_t uuid[] = {
2624 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2625 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2629 ffio_wfourcc(pb, "uuid");
2630 avio_write(pb, uuid, sizeof(uuid));
2633 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2634 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2635 avio_printf(pb, "<head>\n");
2637 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2639 avio_printf(pb, "</head>\n");
2640 avio_printf(pb, "<body>\n");
2641 avio_printf(pb, "<switch>\n");
2642 for (i = 0; i < mov->nb_streams; i++) {
2643 MOVTrack *track = &mov->tracks[i];
2645 /* track->track_id is initialized in write_moov, and thus isn't known
2647 int track_id = i + 1;
2649 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2651 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2656 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2657 track->enc->bit_rate);
2658 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2659 param_write_int(pb, "trackID", track_id);
2660 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2661 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2663 int size = track->enc->extradata_size;
2664 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2666 param_write_hex(pb, "CodecPrivateData",
2667 ptr ? ptr : track->enc->extradata,
2671 param_write_string(pb, "FourCC", "H264");
2672 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2673 param_write_string(pb, "FourCC", "WVC1");
2674 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2675 track->enc->extradata_size);
2677 param_write_int(pb, "MaxWidth", track->enc->width);
2678 param_write_int(pb, "MaxHeight", track->enc->height);
2679 param_write_int(pb, "DisplayWidth", track->enc->width);
2680 param_write_int(pb, "DisplayHeight", track->enc->height);
2682 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2683 param_write_string(pb, "FourCC", "AACL");
2684 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2685 param_write_string(pb, "FourCC", "WMAP");
2687 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2688 track->enc->extradata_size);
2689 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2690 track->enc->codec_id));
2691 param_write_int(pb, "Channels", track->enc->channels);
2692 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2693 param_write_int(pb, "BitsPerSample", 16);
2694 param_write_int(pb, "PacketSize", track->enc->block_align ?
2695 track->enc->block_align : 4);
2697 avio_printf(pb, "</%s>\n", type);
2699 avio_printf(pb, "</switch>\n");
2700 avio_printf(pb, "</body>\n");
2701 avio_printf(pb, "</smil>\n");
2703 return update_size(pb, pos);
2706 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2709 ffio_wfourcc(pb, "mfhd");
2711 avio_wb32(pb, mov->fragments);
2715 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2716 MOVTrack *track, int64_t moof_offset)
2718 int64_t pos = avio_tell(pb);
2719 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2720 MOV_TFHD_BASE_DATA_OFFSET;
2721 if (!track->entry) {
2722 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2724 flags |= MOV_TFHD_DEFAULT_FLAGS;
2726 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2727 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2729 /* Don't set a default sample size, the silverlight player refuses
2730 * to play files with that set. Don't set a default sample duration,
2731 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2732 * file format says it MUST NOT be set. */
2733 if (track->mode == MODE_ISM)
2734 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2735 MOV_TFHD_BASE_DATA_OFFSET);
2737 avio_wb32(pb, 0); /* size placeholder */
2738 ffio_wfourcc(pb, "tfhd");
2739 avio_w8(pb, 0); /* version */
2740 avio_wb24(pb, flags);
2742 avio_wb32(pb, track->track_id); /* track-id */
2743 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2744 avio_wb64(pb, moof_offset);
2745 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2746 track->default_duration = get_cluster_duration(track, 0);
2747 avio_wb32(pb, track->default_duration);
2749 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2750 track->default_size = track->entry ? track->cluster[0].size : 1;
2751 avio_wb32(pb, track->default_size);
2753 track->default_size = -1;
2755 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2756 track->default_sample_flags =
2757 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2758 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2759 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2760 avio_wb32(pb, track->default_sample_flags);
2763 return update_size(pb, pos);
2766 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2768 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2769 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2772 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2773 MOVTrack *track, int moof_size)
2775 int64_t pos = avio_tell(pb);
2776 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2779 for (i = 0; i < track->entry; i++) {
2780 if (get_cluster_duration(track, i) != track->default_duration)
2781 flags |= MOV_TRUN_SAMPLE_DURATION;
2782 if (track->cluster[i].size != track->default_size)
2783 flags |= MOV_TRUN_SAMPLE_SIZE;
2784 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2785 flags |= MOV_TRUN_SAMPLE_FLAGS;
2787 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2788 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2789 if (track->flags & MOV_TRACK_CTTS)
2790 flags |= MOV_TRUN_SAMPLE_CTS;
2792 avio_wb32(pb, 0); /* size placeholder */
2793 ffio_wfourcc(pb, "trun");
2794 avio_w8(pb, 0); /* version */
2795 avio_wb24(pb, flags);
2797 avio_wb32(pb, track->entry); /* sample count */
2798 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2799 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2800 track->track_id != 1)
2801 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2803 avio_wb32(pb, moof_size + 8 + track->data_offset +
2804 track->cluster[0].pos); /* data offset */
2805 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2806 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2808 for (i = 0; i < track->entry; i++) {
2809 if (flags & MOV_TRUN_SAMPLE_DURATION)
2810 avio_wb32(pb, get_cluster_duration(track, i));
2811 if (flags & MOV_TRUN_SAMPLE_SIZE)
2812 avio_wb32(pb, track->cluster[i].size);
2813 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2814 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2815 if (flags & MOV_TRUN_SAMPLE_CTS)
2816 avio_wb32(pb, track->cluster[i].cts);
2819 return update_size(pb, pos);
2822 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2824 int64_t pos = avio_tell(pb);
2825 static const uint8_t uuid[] = {
2826 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2827 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2830 avio_wb32(pb, 0); /* size placeholder */
2831 ffio_wfourcc(pb, "uuid");
2832 avio_write(pb, uuid, sizeof(uuid));
2835 avio_wb64(pb, track->frag_start);
2836 avio_wb64(pb, track->start_dts + track->track_duration -
2837 track->cluster[0].dts);
2839 return update_size(pb, pos);
2842 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2843 MOVTrack *track, int entry)
2845 int n = track->nb_frag_info - 1 - entry, i;
2846 int size = 8 + 16 + 4 + 1 + 16*n;
2847 static const uint8_t uuid[] = {
2848 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2849 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2855 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2856 avio_wb32(pb, size);
2857 ffio_wfourcc(pb, "uuid");
2858 avio_write(pb, uuid, sizeof(uuid));
2862 for (i = 0; i < n; i++) {
2863 int index = entry + 1 + i;
2864 avio_wb64(pb, track->frag_info[index].time);
2865 avio_wb64(pb, track->frag_info[index].duration);
2867 if (n < mov->ism_lookahead) {
2868 int free_size = 16 * (mov->ism_lookahead - n);
2869 avio_wb32(pb, free_size);
2870 ffio_wfourcc(pb, "free");
2871 ffio_fill(pb, 0, free_size - 8);
2877 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2880 int64_t pos = avio_tell(pb);
2882 for (i = 0; i < mov->ism_lookahead; i++) {
2883 /* Update the tfrf tag for the last ism_lookahead fragments,
2884 * nb_frag_info - 1 is the next fragment to be written. */
2885 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2887 avio_seek(pb, pos, SEEK_SET);
2891 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2892 MOVTrack *track, int64_t moof_offset,
2895 int64_t pos = avio_tell(pb);
2896 avio_wb32(pb, 0); /* size placeholder */
2897 ffio_wfourcc(pb, "traf");
2899 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2900 mov_write_trun_tag(pb, mov, track, moof_size);
2901 if (mov->mode == MODE_ISM) {
2902 mov_write_tfxd_tag(pb, track);
2904 if (mov->ism_lookahead) {
2905 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2907 track->tfrf_offset = avio_tell(pb);
2908 avio_wb32(pb, 8 + size);
2909 ffio_wfourcc(pb, "free");
2910 for (i = 0; i < size; i++)
2915 return update_size(pb, pos);
2918 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2919 int tracks, int moof_size)
2921 int64_t pos = avio_tell(pb);
2924 avio_wb32(pb, 0); /* size placeholder */
2925 ffio_wfourcc(pb, "moof");
2927 mov_write_mfhd_tag(pb, mov);
2928 for (i = 0; i < mov->nb_streams; i++) {
2929 MOVTrack *track = &mov->tracks[i];
2930 if (tracks >= 0 && i != tracks)
2934 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2937 return update_size(pb, pos);
2940 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2942 AVIOContext *avio_buf;
2945 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2947 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2948 moof_size = ffio_close_null_buf(avio_buf);
2949 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2952 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2954 int64_t pos = avio_tell(pb);
2957 avio_wb32(pb, 0); /* size placeholder */
2958 ffio_wfourcc(pb, "tfra");
2959 avio_w8(pb, 1); /* version */
2962 avio_wb32(pb, track->track_id);
2963 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2964 avio_wb32(pb, track->nb_frag_info);
2965 for (i = 0; i < track->nb_frag_info; i++) {
2966 avio_wb64(pb, track->frag_info[i].time);
2967 avio_wb64(pb, track->frag_info[i].offset);
2968 avio_w8(pb, 1); /* traf number */
2969 avio_w8(pb, 1); /* trun number */
2970 avio_w8(pb, 1); /* sample number */
2973 return update_size(pb, pos);
2976 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2978 int64_t pos = avio_tell(pb);
2981 avio_wb32(pb, 0); /* size placeholder */
2982 ffio_wfourcc(pb, "mfra");
2983 /* An empty mfra atom is enough to indicate to the publishing point that
2984 * the stream has ended. */
2985 if (mov->flags & FF_MOV_FLAG_ISML)
2986 return update_size(pb, pos);
2988 for (i = 0; i < mov->nb_streams; i++) {
2989 MOVTrack *track = &mov->tracks[i];
2990 if (track->nb_frag_info)
2991 mov_write_tfra_tag(pb, track);
2995 ffio_wfourcc(pb, "mfro");
2996 avio_wb32(pb, 0); /* version + flags */
2997 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2999 return update_size(pb, pos);
3002 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3004 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3005 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3007 mov->mdat_pos = avio_tell(pb);
3008 avio_wb32(pb, 0); /* size placeholder*/
3009 ffio_wfourcc(pb, "mdat");
3013 /* TODO: This needs to be more general */
3014 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3016 MOVMuxContext *mov = s->priv_data;
3017 int64_t pos = avio_tell(pb);
3018 int has_h264 = 0, has_video = 0;
3022 for (i = 0; i < s->nb_streams; i++) {
3023 AVStream *st = s->streams[i];
3024 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3026 if (st->codec->codec_id == AV_CODEC_ID_H264)
3030 avio_wb32(pb, 0); /* size */
3031 ffio_wfourcc(pb, "ftyp");
3033 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3034 ffio_wfourcc(pb, mov->major_brand);
3035 else if (mov->mode == MODE_3GP) {
3036 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3037 minor = has_h264 ? 0x100 : 0x200;
3038 } else if (mov->mode & MODE_3G2) {
3039 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3040 minor = has_h264 ? 0x20000 : 0x10000;
3041 } else if (mov->mode == MODE_PSP)
3042 ffio_wfourcc(pb, "MSNV");
3043 else if (mov->mode == MODE_MP4)
3044 ffio_wfourcc(pb, "isom");
3045 else if (mov->mode == MODE_IPOD)
3046 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3047 else if (mov->mode == MODE_ISM)
3048 ffio_wfourcc(pb, "isml");
3049 else if (mov->mode == MODE_F4V)
3050 ffio_wfourcc(pb, "f4v ");
3052 ffio_wfourcc(pb, "qt ");
3054 avio_wb32(pb, minor);
3056 if (mov->mode == MODE_MOV)
3057 ffio_wfourcc(pb, "qt ");
3058 else if (mov->mode == MODE_ISM) {
3059 ffio_wfourcc(pb, "piff");
3060 ffio_wfourcc(pb, "iso2");
3062 ffio_wfourcc(pb, "isom");
3063 ffio_wfourcc(pb, "iso2");
3065 ffio_wfourcc(pb, "avc1");
3068 if (mov->mode == MODE_3GP)
3069 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3070 else if (mov->mode & MODE_3G2)
3071 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3072 else if (mov->mode == MODE_PSP)
3073 ffio_wfourcc(pb, "MSNV");
3074 else if (mov->mode == MODE_MP4)
3075 ffio_wfourcc(pb, "mp41");
3076 return update_size(pb, pos);
3079 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3081 AVStream *video_st = s->streams[0];
3082 AVCodecContext *video_codec = s->streams[0]->codec;
3083 AVCodecContext *audio_codec = s->streams[1]->codec;
3084 int audio_rate = audio_codec->sample_rate;
3085 // TODO: should be avg_frame_rate
3086 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3087 int audio_kbitrate = audio_codec->bit_rate / 1000;
3088 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3090 avio_wb32(pb, 0x94); /* size */
3091 ffio_wfourcc(pb, "uuid");
3092 ffio_wfourcc(pb, "PROF");
3094 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3095 avio_wb32(pb, 0xbb88695c);
3096 avio_wb32(pb, 0xfac9c740);
3098 avio_wb32(pb, 0x0); /* ? */
3099 avio_wb32(pb, 0x3); /* 3 sections ? */
3101 avio_wb32(pb, 0x14); /* size */
3102 ffio_wfourcc(pb, "FPRF");
3103 avio_wb32(pb, 0x0); /* ? */
3104 avio_wb32(pb, 0x0); /* ? */
3105 avio_wb32(pb, 0x0); /* ? */
3107 avio_wb32(pb, 0x2c); /* size */
3108 ffio_wfourcc(pb, "APRF"); /* audio */
3110 avio_wb32(pb, 0x2); /* TrackID */
3111 ffio_wfourcc(pb, "mp4a");
3112 avio_wb32(pb, 0x20f);
3114 avio_wb32(pb, audio_kbitrate);
3115 avio_wb32(pb, audio_kbitrate);
3116 avio_wb32(pb, audio_rate);
3117 avio_wb32(pb, audio_codec->channels);
3119 avio_wb32(pb, 0x34); /* size */
3120 ffio_wfourcc(pb, "VPRF"); /* video */
3122 avio_wb32(pb, 0x1); /* TrackID */
3123 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3124 ffio_wfourcc(pb, "avc1");
3125 avio_wb16(pb, 0x014D);
3126 avio_wb16(pb, 0x0015);
3128 ffio_wfourcc(pb, "mp4v");
3129 avio_wb16(pb, 0x0000);
3130 avio_wb16(pb, 0x0103);
3133 avio_wb32(pb, video_kbitrate);
3134 avio_wb32(pb, video_kbitrate);
3135 avio_wb32(pb, frame_rate);
3136 avio_wb32(pb, frame_rate);
3137 avio_wb16(pb, video_codec->width);
3138 avio_wb16(pb, video_codec->height);
3139 avio_wb32(pb, 0x010001); /* ? */
3142 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3145 int i, closed_gop = 0;
3147 for (i = 0; i < pkt->size - 4; i++) {
3148 c = (c << 8) + pkt->data[i];
3149 if (c == 0x1b8) { // gop
3150 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3151 } else if (c == 0x100) { // pic
3152 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3153 if (!temp_ref || closed_gop) // I picture is not reordered
3154 *flags = MOV_SYNC_SAMPLE;
3156 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3163 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3165 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3166 int seq = 0, entry = 0;
3167 int key = pkt->flags & AV_PKT_FLAG_KEY;
3168 start = find_next_marker(pkt->data, end);
3169 for (next = start; next < end; start = next) {
3170 next = find_next_marker(start + 4, end);
3171 switch (AV_RB32(start)) {
3172 case VC1_CODE_SEQHDR:
3175 case VC1_CODE_ENTRYPOINT:
3178 case VC1_CODE_SLICE:
3179 trk->vc1_info.slices = 1;
3183 if (!trk->entry && !fragment) {
3184 /* First packet in first fragment */
3185 trk->vc1_info.first_packet_seq = seq;
3186 trk->vc1_info.first_packet_entry = entry;
3187 } else if ((seq && !trk->vc1_info.packet_seq) ||
3188 (entry && !trk->vc1_info.packet_entry)) {
3190 for (i = 0; i < trk->entry; i++)
3191 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3192 trk->has_keyframes = 0;
3194 trk->vc1_info.packet_seq = 1;
3196 trk->vc1_info.packet_entry = 1;
3198 /* First fragment */
3199 if ((!seq || trk->vc1_info.first_packet_seq) &&
3200 (!entry || trk->vc1_info.first_packet_entry)) {
3201 /* First packet had the same headers as this one, readd the
3202 * sync sample flag. */
3203 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3204 trk->has_keyframes = 1;
3208 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3210 else if (trk->vc1_info.packet_seq)
3212 else if (trk->vc1_info.packet_entry)
3215 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3216 trk->has_keyframes++;
3220 static int mov_flush_fragment(AVFormatContext *s)
3222 MOVMuxContext *mov = s->priv_data;
3223 int i, first_track = -1;
3224 int64_t mdat_size = 0;
3226 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3229 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3230 int64_t pos = avio_tell(s->pb);
3232 int buf_size, moov_size;
3234 for (i = 0; i < mov->nb_streams; i++)
3235 if (!mov->tracks[i].entry)
3237 /* Don't write the initial moov unless all tracks have data */
3238 if (i < mov->nb_streams)
3241 moov_size = get_moov_size(s);
3242 for (i = 0; i < mov->nb_streams; i++)
3243 mov->tracks[i].data_offset = pos + moov_size + 8;
3245 mov_write_moov_tag(s->pb, mov, s);
3247 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3248 mov->mdat_buf = NULL;
3249 avio_wb32(s->pb, buf_size + 8);
3250 ffio_wfourcc(s->pb, "mdat");
3251 avio_write(s->pb, buf, buf_size);
3256 for (i = 0; i < mov->nb_streams; i++) {
3257 if (mov->tracks[i].entry)
3258 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3259 mov->tracks[i].track_duration -
3260 mov->tracks[i].cluster[0].dts;
3261 mov->tracks[i].entry = 0;
3267 for (i = 0; i < mov->nb_streams; i++) {
3268 MOVTrack *track = &mov->tracks[i];
3269 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3270 track->data_offset = 0;
3272 track->data_offset = mdat_size;
3273 if (!track->mdat_buf)
3275 mdat_size += avio_tell(track->mdat_buf);
3276 if (first_track < 0)
3283 for (i = 0; i < mov->nb_streams; i++) {
3284 MOVTrack *track = &mov->tracks[i];
3285 int buf_size, write_moof = 1, moof_tracks = -1;
3287 int64_t duration = 0;
3290 duration = track->start_dts + track->track_duration -
3291 track->cluster[0].dts;
3292 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3293 if (!track->mdat_buf)
3295 mdat_size = avio_tell(track->mdat_buf);
3298 write_moof = i == first_track;
3302 MOVFragmentInfo *info;
3304 track->nb_frag_info++;
3305 if (track->nb_frag_info >= track->frag_info_capacity) {
3306 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3307 if (av_reallocp_array(&track->frag_info,
3309 sizeof(*track->frag_info)))
3310 return AVERROR(ENOMEM);
3311 track->frag_info_capacity = new_capacity;
3313 info = &track->frag_info[track->nb_frag_info - 1];
3314 info->offset = avio_tell(s->pb);
3315 info->time = mov->tracks[i].frag_start;
3316 info->duration = duration;
3317 mov_write_tfrf_tags(s->pb, mov, track);
3319 mov_write_moof_tag(s->pb, mov, moof_tracks);
3320 info->tfrf_offset = track->tfrf_offset;
3323 avio_wb32(s->pb, mdat_size + 8);
3324 ffio_wfourcc(s->pb, "mdat");
3328 track->frag_start += duration;
3330 if (!track->mdat_buf)
3332 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3333 track->mdat_buf = NULL;
3335 avio_write(s->pb, buf, buf_size);
3345 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3347 MOVMuxContext *mov = s->priv_data;
3348 AVIOContext *pb = s->pb;
3349 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3350 AVCodecContext *enc = trk->enc;
3351 unsigned int samples_in_chunk = 0;
3352 int size = pkt->size;
3353 uint8_t *reformatted_data = NULL;
3356 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3357 if (duration < 0 || duration > INT_MAX) {
3358 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3362 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3363 pkt->pts = AV_NOPTS_VALUE;
3365 if (pkt->duration < 0) {
3366 av_log(s, AV_LOG_ERROR, "Application provided duration: %d is invalid\n", pkt->duration);
3367 return AVERROR(EINVAL);
3370 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3372 if (mov->fragments > 0) {
3373 if (!trk->mdat_buf) {
3374 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3379 if (!mov->mdat_buf) {
3380 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3387 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3388 /* We must find out how many AMR blocks there are in one packet */
3389 static uint16_t packed_size[16] =
3390 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3393 while (len < size && samples_in_chunk < 100) {
3394 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3397 if (samples_in_chunk > 1) {
3398 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3401 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3402 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3403 samples_in_chunk = enc->frame_size;
3404 } else if (trk->sample_size)
3405 samples_in_chunk = size / trk->sample_size;
3407 samples_in_chunk = 1;
3409 /* copy extradata if it exists */
3410 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3411 trk->vos_len = enc->extradata_size;
3412 trk->vos_data = av_malloc(trk->vos_len);
3413 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3416 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3417 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3418 if (!s->streams[pkt->stream_index]->nb_frames) {
3419 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3420 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3421 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3424 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3426 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3427 /* from x264 or from bytestream h264 */
3428 /* nal reformating needed */
3429 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3430 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3432 avio_write(pb, reformatted_data, size);
3434 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3436 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3437 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3438 /* extradata is Annex B, assume the bitstream is too and convert it */
3439 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3440 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3441 avio_write(pb, reformatted_data, size);
3443 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3446 avio_write(pb, pkt->data, size);
3449 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3450 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3451 /* copy frame to create needed atoms */
3452 trk->vos_len = size;
3453 trk->vos_data = av_malloc(size);
3455 return AVERROR(ENOMEM);
3456 memcpy(trk->vos_data, pkt->data, size);
3459 if (trk->entry >= trk->cluster_capacity) {
3460 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3461 if (av_reallocp_array(&trk->cluster, new_capacity,
3462 sizeof(*trk->cluster)))
3463 return AVERROR(ENOMEM);
3464 trk->cluster_capacity = new_capacity;
3467 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3468 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3469 trk->cluster[trk->entry].chunkNum = 0;
3470 trk->cluster[trk->entry].size = size;
3471 trk->cluster[trk->entry].entries = samples_in_chunk;
3472 trk->cluster[trk->entry].dts = pkt->dts;
3473 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3474 /* First packet of a new fragment. We already wrote the duration
3475 * of the last packet of the previous fragment based on track_duration,
3476 * which might not exactly match our dts. Therefore adjust the dts
3477 * of this packet to be what the previous packets duration implies. */
3478 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3480 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3481 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3483 if (trk->start_dts == AV_NOPTS_VALUE)
3484 trk->start_dts = pkt->dts;
3485 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3486 trk->last_sample_is_subtitle_end = 0;
3488 if (pkt->pts == AV_NOPTS_VALUE) {
3489 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3490 pkt->pts = pkt->dts;
3492 if (pkt->dts != pkt->pts)
3493 trk->flags |= MOV_TRACK_CTTS;
3494 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3495 trk->cluster[trk->entry].flags = 0;
3496 if (enc->codec_id == AV_CODEC_ID_VC1) {
3497 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3498 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3499 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3500 trk->entry > 0) { // force sync sample for the first key frame
3501 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3502 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3503 trk->flags |= MOV_TRACK_STPS;
3505 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3507 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3508 trk->has_keyframes++;
3511 trk->sample_count += samples_in_chunk;
3512 mov->mdat_size += size;
3514 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3515 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3516 reformatted_data, size);
3517 av_free(reformatted_data);
3521 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3523 MOVMuxContext *mov = s->priv_data;
3524 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3525 AVCodecContext *enc = trk->enc;
3526 int64_t frag_duration = 0;
3527 int size = pkt->size;
3530 return 0; /* Discard 0 sized packets */
3532 if (trk->entry && pkt->stream_index < s->nb_streams)
3533 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3534 s->streams[pkt->stream_index]->time_base,
3536 if ((mov->max_fragment_duration &&
3537 frag_duration >= mov->max_fragment_duration) ||
3538 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3539 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3540 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3541 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3542 if (frag_duration >= mov->min_fragment_duration)
3543 mov_flush_fragment(s);
3546 return ff_mov_write_packet(s, pkt);
3549 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3553 uint8_t data[2] = {0};
3556 av_init_packet(&end);
3557 end.size = sizeof(data);
3562 end.stream_index = stream_index;
3564 ret = mov_write_single_packet(s, &end);
3565 av_free_packet(&end);
3570 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3573 mov_flush_fragment(s);
3577 MOVMuxContext *mov = s->priv_data;
3579 if (!pkt->size) return 0; /* Discard 0 sized packets */
3582 * Subtitles require special handling.
3584 * 1) For full complaince, every track must have a sample at
3585 * dts == 0, which is rarely true for subtitles. So, as soon
3586 * as we see any packet with dts > 0, write an empty subtitle
3587 * at dts == 0 for any subtitle track with no samples in it.
3589 * 2) For each subtitle track, check if the current packet's
3590 * dts is past the duration of the last subtitle sample. If
3591 * so, we now need to write an end sample for that subtitle.
3593 * This must be done conditionally to allow for subtitles that
3594 * immediately replace each other, in which case an end sample
3595 * is not needed, and is, in fact, actively harmful.
3597 * 3) See mov_write_trailer for how the final end sample is
3600 for (i = 0; i < mov->nb_streams; i++) {
3601 MOVTrack *trk = &mov->tracks[i];
3604 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3605 trk->track_duration < pkt->dts &&
3606 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3607 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3608 if (ret < 0) return ret;
3609 trk->last_sample_is_subtitle_end = 1;
3613 return mov_write_single_packet(s, pkt);
3617 // QuickTime chapters involve an additional text track with the chapter names
3618 // as samples, and a tref pointing from the other tracks to the chapter one.
3619 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3623 MOVMuxContext *mov = s->priv_data;
3624 MOVTrack *track = &mov->tracks[tracknum];
3625 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3628 track->mode = mov->mode;
3629 track->tag = MKTAG('t','e','x','t');
3630 track->timescale = MOV_TIMESCALE;
3631 track->enc = avcodec_alloc_context3(NULL);
3633 return AVERROR(ENOMEM);
3634 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3636 // These properties are required to make QT recognize the chapter track
3637 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3638 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3639 return AVERROR(ENOMEM);
3640 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3642 if (avio_open_dyn_buf(&pb) >= 0) {
3646 /* Stub header (usually for Quicktime chapter track) */
3648 avio_wb32(pb, 0x01); // displayFlags
3649 avio_w8(pb, 0x00); // horizontal justification
3650 avio_w8(pb, 0x00); // vertical justification
3651 avio_w8(pb, 0x00); // bgColourRed
3652 avio_w8(pb, 0x00); // bgColourGreen
3653 avio_w8(pb, 0x00); // bgColourBlue
3654 avio_w8(pb, 0x00); // bgColourAlpha
3656 avio_wb16(pb, 0x00); // defTextBoxTop
3657 avio_wb16(pb, 0x00); // defTextBoxLeft
3658 avio_wb16(pb, 0x00); // defTextBoxBottom
3659 avio_wb16(pb, 0x00); // defTextBoxRight
3661 avio_wb16(pb, 0x00); // startChar
3662 avio_wb16(pb, 0x00); // endChar
3663 avio_wb16(pb, 0x01); // fontID
3664 avio_w8(pb, 0x00); // fontStyleFlags
3665 avio_w8(pb, 0x00); // fontSize
3666 avio_w8(pb, 0x00); // fgColourRed
3667 avio_w8(pb, 0x00); // fgColourGreen
3668 avio_w8(pb, 0x00); // fgColourBlue
3669 avio_w8(pb, 0x00); // fgColourAlpha
3671 avio_wb32(pb, 0x0D); // box size
3672 ffio_wfourcc(pb, "ftab"); // box atom name
3673 avio_wb16(pb, 0x01); // entry count
3675 avio_wb16(pb, 0x01); // font ID
3676 avio_w8(pb, 0x00); // font name length
3678 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3679 track->enc->extradata = buf;
3680 track->enc->extradata_size = size;
3687 for (i = 0; i < s->nb_chapters; i++) {
3688 AVChapter *c = s->chapters[i];
3689 AVDictionaryEntry *t;
3691 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3692 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3693 pkt.duration = end - pkt.dts;
3695 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3696 len = strlen(t->value);
3698 pkt.data = av_malloc(pkt.size);
3700 return AVERROR(ENOMEM);
3701 AV_WB16(pkt.data, len);
3702 memcpy(pkt.data + 2, t->value, len);
3703 ff_mov_write_packet(s, &pkt);
3704 av_freep(&pkt.data);
3711 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3714 MOVMuxContext *mov = s->priv_data;
3715 MOVTrack *track = &mov->tracks[index];
3716 AVStream *src_st = s->streams[src_index];
3718 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3719 AVRational rate = find_fps(s, src_st);
3721 /* compute the frame number */
3722 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3726 /* tmcd track based on video stream */
3727 track->mode = mov->mode;
3728 track->tag = MKTAG('t','m','c','d');
3729 track->src_track = src_index;
3730 track->timescale = mov->tracks[src_index].timescale;
3731 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3732 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3734 /* encode context: tmcd data stream */
3735 track->enc = avcodec_alloc_context3(NULL);
3736 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3737 track->enc->codec_tag = track->tag;
3738 track->enc->time_base = av_inv_q(rate);
3740 /* the tmcd track just contains one packet with the frame number */
3741 pkt.data = av_malloc(pkt.size);
3742 AV_WB32(pkt.data, tc.start);
3743 ret = ff_mov_write_packet(s, &pkt);
3749 * st->disposition controls the "enabled" flag in the tkhd tag.
3750 * QuickTime will not play a track if it is not enabled. So make sure
3751 * that one track of each type (audio, video, subtitle) is enabled.
3753 * Subtitles are special. For audio and video, setting "enabled" also
3754 * makes the track "default" (i.e. it is rendered when played). For
3755 * subtitles, an "enabled" subtitle is not rendered by default, but
3756 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3759 static void enable_tracks(AVFormatContext *s)
3761 MOVMuxContext *mov = s->priv_data;
3763 int enabled[AVMEDIA_TYPE_NB];
3764 int first[AVMEDIA_TYPE_NB];
3766 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3771 for (i = 0; i < s->nb_streams; i++) {
3772 AVStream *st = s->streams[i];
3774 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3775 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3778 if (first[st->codec->codec_type] < 0)
3779 first[st->codec->codec_type] = i;
3780 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3781 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3782 enabled[st->codec->codec_type]++;
3786 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3788 case AVMEDIA_TYPE_VIDEO:
3789 case AVMEDIA_TYPE_AUDIO:
3790 case AVMEDIA_TYPE_SUBTITLE:
3792 mov->per_stream_grouping = 1;
3793 if (!enabled[i] && first[i] >= 0)
3794 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3800 static void mov_free(AVFormatContext *s)
3802 MOVMuxContext *mov = s->priv_data;
3805 if (mov->chapter_track) {
3806 if (mov->tracks[mov->chapter_track].enc)
3807 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3808 av_freep(&mov->tracks[mov->chapter_track].enc);
3811 for (i = 0; i < mov->nb_streams; i++) {
3812 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3813 ff_mov_close_hinting(&mov->tracks[i]);
3814 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3815 av_freep(&mov->tracks[i].enc);
3816 av_freep(&mov->tracks[i].cluster);
3817 av_freep(&mov->tracks[i].frag_info);
3819 if (mov->tracks[i].vos_len)
3820 av_freep(&mov->tracks[i].vos_data);
3823 av_freep(&mov->tracks);
3826 static uint32_t rgb_to_yuv(uint32_t rgb)
3831 r = (rgb >> 16) & 0xFF;
3832 g = (rgb >> 8) & 0xFF;
3835 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3836 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3837 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3839 return (y << 16) | (cr << 8) | cb;
3842 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3845 int i, width = 720, height = 480;
3846 int have_palette = 0, have_size = 0;
3847 uint32_t palette[16];
3848 char *cur = st->codec->extradata;
3850 while (cur && *cur) {
3851 if (strncmp("palette:", cur, 8) == 0) {
3853 count = sscanf(cur + 8,
3854 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3855 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3856 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3857 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3858 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3859 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3860 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3861 &palette[12], &palette[13], &palette[14], &palette[15]);
3863 for (i = 0; i < count; i++) {
3864 palette[i] = rgb_to_yuv(palette[i]);
3867 } else if (!strncmp("size:", cur, 5)) {
3868 sscanf(cur + 5, "%dx%d", &width, &height);
3871 if (have_palette && have_size)
3873 cur += strcspn(cur, "\n\r");
3874 cur += strspn(cur, "\n\r");
3877 track->vos_data = av_malloc(16*4);
3878 if (!track->vos_data)
3879 return AVERROR(ENOMEM);
3880 for (i = 0; i < 16; i++) {
3881 AV_WB32(track->vos_data + i * 4, palette[i]);
3883 track->vos_len = 16 * 4;
3885 st->codec->width = width;
3886 st->codec->height = track->height = height;
3891 static int mov_write_header(AVFormatContext *s)
3893 AVIOContext *pb = s->pb;
3894 MOVMuxContext *mov = s->priv_data;
3895 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3896 int i, ret, hint_track = 0, tmcd_track = 0;
3898 /* Default mode == MP4 */
3899 mov->mode = MODE_MP4;
3901 if (s->oformat != NULL) {
3902 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3903 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3904 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3905 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3906 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3907 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3908 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3911 for (i = 0; i < s->nb_streams; i++)
3912 if (s->flags & AVFMT_FLAG_BITEXACT)
3915 /* Set the FRAGMENT flag if any of the fragmentation methods are
3917 if (mov->max_fragment_duration || mov->max_fragment_size ||
3918 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3919 FF_MOV_FLAG_FRAG_KEYFRAME |
3920 FF_MOV_FLAG_FRAG_CUSTOM))
3921 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3923 /* Set other implicit flags immediately */
3924 if (mov->mode == MODE_ISM)
3925 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3926 FF_MOV_FLAG_FRAGMENT;
3928 /* faststart: moov at the beginning of the file, if supported */
3929 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3930 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3931 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3932 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3933 "with fragmentation and custom IO, disabling faststart\n");
3934 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3936 mov->reserved_moov_size = -1;
3939 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3940 s->avoid_negative_ts = 2;
3943 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3944 * is enabled, we don't support non-seekable output at all. */
3945 if (!s->pb->seekable &&
3946 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3947 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3948 return AVERROR(EINVAL);
3951 mov_write_ftyp_tag(pb,s);
3952 if (mov->mode == MODE_PSP) {
3953 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3954 for (i = 0; i < s->nb_streams; i++) {
3955 AVStream *st = s->streams[i];
3956 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3958 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3964 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3965 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3966 return AVERROR(EINVAL);
3968 mov_write_uuidprof_tag(pb, s);
3971 mov->nb_streams = s->nb_streams;
3972 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3973 mov->chapter_track = mov->nb_streams++;
3975 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3976 /* Add hint tracks for each audio and video stream */
3977 hint_track = mov->nb_streams;
3978 for (i = 0; i < s->nb_streams; i++) {
3979 AVStream *st = s->streams[i];
3980 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3981 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3987 if (mov->mode == MODE_MOV) {
3988 tmcd_track = mov->nb_streams;
3990 /* +1 tmcd track for each video stream with a timecode */
3991 for (i = 0; i < s->nb_streams; i++) {
3992 AVStream *st = s->streams[i];
3993 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3994 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3995 mov->nb_meta_tmcd++;
3998 /* check if there is already a tmcd track to remux */
3999 if (mov->nb_meta_tmcd) {
4000 for (i = 0; i < s->nb_streams; i++) {
4001 AVStream *st = s->streams[i];
4002 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
4003 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
4004 "so timecode metadata are now ignored\n");
4005 mov->nb_meta_tmcd = 0;
4010 mov->nb_streams += mov->nb_meta_tmcd;
4013 // Reserve an extra stream for chapters for the case where chapters
4014 // are written in the trailer
4015 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
4017 return AVERROR(ENOMEM);
4019 for (i = 0; i < s->nb_streams; i++) {
4020 AVStream *st= s->streams[i];
4021 MOVTrack *track= &mov->tracks[i];
4022 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4025 track->enc = st->codec;
4026 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4027 if (track->language < 0)
4028 track->language = 0;
4029 track->mode = mov->mode;
4030 track->tag = mov_find_codec_tag(s, track);
4032 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
4033 "codec not currently supported in container\n",
4034 avcodec_get_name(st->codec->codec_id), i);
4035 ret = AVERROR(EINVAL);
4038 /* If hinting of this track is enabled by a later hint track,
4039 * this is updated. */
4040 track->hint_track = -1;
4041 track->start_dts = AV_NOPTS_VALUE;
4042 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4043 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4044 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4045 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4046 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
4047 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4048 ret = AVERROR(EINVAL);
4051 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4053 if (mov->video_track_timescale) {
4054 track->timescale = mov->video_track_timescale;
4056 track->timescale = st->time_base.den;
4057 while(track->timescale < 10000)
4058 track->timescale *= 2;
4060 if (st->codec->width > 65535 || st->codec->height > 65535) {
4061 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codec->width, st->codec->height);
4062 ret = AVERROR(EINVAL);
4065 if (track->mode == MODE_MOV && track->timescale > 100000)
4066 av_log(s, AV_LOG_WARNING,
4067 "WARNING codec timebase is very high. If duration is too long,\n"
4068 "file may not be playable by quicktime. Specify a shorter timebase\n"
4069 "or choose different container.\n");
4070 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4071 track->timescale = st->codec->sample_rate;
4072 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4073 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4074 track->audio_vbr = 1;
4075 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4076 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4077 st->codec->codec_id == AV_CODEC_ID_ILBC){
4078 if (!st->codec->block_align) {
4079 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4080 ret = AVERROR(EINVAL);
4083 track->sample_size = st->codec->block_align;
4084 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4085 track->audio_vbr = 1;
4087 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4089 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4090 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4091 track->audio_vbr = 1;
4093 if (track->mode != MODE_MOV &&
4094 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4095 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4096 i, track->enc->sample_rate);
4097 ret = AVERROR(EINVAL);
4100 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4101 track->timescale = st->time_base.den;
4102 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4103 track->timescale = st->time_base.den;
4105 track->timescale = MOV_TIMESCALE;
4108 track->height = st->codec->height;
4109 /* The ism specific timescale isn't mandatory, but is assumed by
4110 * some tools, such as mp4split. */
4111 if (mov->mode == MODE_ISM)
4112 track->timescale = 10000000;
4114 avpriv_set_pts_info(st, 64, 1, track->timescale);
4116 /* copy extradata if it exists */
4117 if (st->codec->extradata_size) {
4118 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4119 mov_create_dvd_sub_decoder_specific_info(track, st);
4121 track->vos_len = st->codec->extradata_size;
4122 track->vos_data = av_malloc(track->vos_len);
4123 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4128 for (i = 0; i < s->nb_streams; i++) {
4130 AVStream *st= s->streams[i];
4131 MOVTrack *track= &mov->tracks[i];
4133 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4134 track->enc->channel_layout != AV_CH_LAYOUT_MONO)
4137 for (j = 0; j < s->nb_streams; j++) {
4138 AVStream *stj= s->streams[j];
4139 MOVTrack *trackj= &mov->tracks[j];
4143 if (stj->codec->codec_type != AVMEDIA_TYPE_AUDIO ||
4144 trackj->enc->channel_layout != AV_CH_LAYOUT_MONO ||
4145 trackj->language != track->language ||
4146 trackj->tag != track->tag
4149 track->multichannel_as_mono++;
4156 if (mov->reserved_moov_size){
4157 mov->reserved_moov_pos= avio_tell(pb);
4158 if (mov->reserved_moov_size > 0)
4159 avio_skip(pb, mov->reserved_moov_size);
4162 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4163 /* If no fragmentation options have been set, set a default. */
4164 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4165 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4166 !mov->max_fragment_duration && !mov->max_fragment_size)
4167 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4169 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4170 mov->reserved_moov_pos = avio_tell(pb);
4171 mov_write_mdat_tag(pb, mov);
4174 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4175 mov->time = ff_iso8601_to_unix_time(t->value);
4177 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4179 if (mov->chapter_track)
4180 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4183 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4184 /* Initialize the hint tracks for each audio and video stream */
4185 for (i = 0; i < s->nb_streams; i++) {
4186 AVStream *st = s->streams[i];
4187 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4188 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4189 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4196 if (mov->nb_meta_tmcd) {
4197 /* Initialize the tmcd tracks */
4198 for (i = 0; i < s->nb_streams; i++) {
4199 AVStream *st = s->streams[i];
4202 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4204 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4207 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4216 if (mov->flags & FF_MOV_FLAG_ISML)
4217 mov_write_isml_manifest(pb, mov);
4219 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4220 mov_write_moov_tag(pb, mov, s);
4230 static int get_moov_size(AVFormatContext *s)
4233 AVIOContext *moov_buf;
4234 MOVMuxContext *mov = s->priv_data;
4236 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4238 mov_write_moov_tag(moov_buf, mov, s);
4239 return ffio_close_null_buf(moov_buf);
4243 * This function gets the moov size if moved to the top of the file: the chunk
4244 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4245 * entries) when the moov is moved to the beginning, so the size of the moov
4246 * would change. It also updates the chunk offset tables.
4248 static int compute_moov_size(AVFormatContext *s)
4250 int i, moov_size, moov_size2;
4251 MOVMuxContext *mov = s->priv_data;
4253 moov_size = get_moov_size(s);
4257 for (i = 0; i < mov->nb_streams; i++)
4258 mov->tracks[i].data_offset += moov_size;
4260 moov_size2 = get_moov_size(s);
4264 /* if the size changed, we just switched from stco to co64 and need to
4265 * update the offsets */
4266 if (moov_size2 != moov_size)
4267 for (i = 0; i < mov->nb_streams; i++)
4268 mov->tracks[i].data_offset += moov_size2 - moov_size;
4273 static int shift_data(AVFormatContext *s)
4275 int ret = 0, moov_size;
4276 MOVMuxContext *mov = s->priv_data;
4277 int64_t pos, pos_end = avio_tell(s->pb);
4278 uint8_t *buf, *read_buf[2];
4279 int read_buf_id = 0;
4281 AVIOContext *read_pb;
4283 moov_size = compute_moov_size(s);
4287 buf = av_malloc(moov_size * 2);
4289 return AVERROR(ENOMEM);
4291 read_buf[1] = buf + moov_size;
4293 /* Shift the data: the AVIO context of the output can only be used for
4294 * writing, so we re-open the same output, but for reading. It also avoids
4295 * a read/seek/write/seek back and forth. */
4297 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4299 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4300 "the second pass (faststart)\n", s->filename);
4304 /* mark the end of the shift to up to the last data we wrote, and get ready
4306 pos_end = avio_tell(s->pb);
4307 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4309 /* start reading at where the new moov will be placed */
4310 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4311 pos = avio_tell(read_pb);
4313 #define READ_BLOCK do { \
4314 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4318 /* shift data by chunk of at most moov_size */
4323 n = read_size[read_buf_id];
4326 avio_write(s->pb, read_buf[read_buf_id], n);
4328 } while (pos < pos_end);
4329 avio_close(read_pb);
4336 static int mov_write_trailer(AVFormatContext *s)
4338 MOVMuxContext *mov = s->priv_data;
4339 AVIOContext *pb = s->pb;
4345 * Before actually writing the trailer, make sure that there are no
4346 * dangling subtitles, that need a terminating sample.
4348 for (i = 0; i < mov->nb_streams; i++) {
4349 MOVTrack *trk = &mov->tracks[i];
4350 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4351 !trk->last_sample_is_subtitle_end) {
4352 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4353 trk->last_sample_is_subtitle_end = 1;
4357 // If there were no chapters when the header was written, but there
4358 // are chapters now, write them in the trailer. This only works
4359 // when we are not doing fragments.
4360 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4361 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4362 mov->chapter_track = mov->nb_streams++;
4363 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4368 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4369 moov_pos = avio_tell(pb);
4371 /* Write size of mdat tag */
4372 if (mov->mdat_size + 8 <= UINT32_MAX) {
4373 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4374 avio_wb32(pb, mov->mdat_size + 8);
4376 /* overwrite 'wide' placeholder atom */
4377 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4378 /* special value: real atom size will be 64 bit value after
4381 ffio_wfourcc(pb, "mdat");
4382 avio_wb64(pb, mov->mdat_size + 16);
4384 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4386 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4387 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4388 res = shift_data(s);
4390 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4391 mov_write_moov_tag(pb, mov, s);
4393 } else if (mov->reserved_moov_size > 0) {
4395 mov_write_moov_tag(pb, mov, s);
4396 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4398 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4401 avio_wb32(pb, size);
4402 ffio_wfourcc(pb, "free");
4403 ffio_fill(pb, 0, size - 8);
4404 avio_seek(pb, moov_pos, SEEK_SET);
4406 mov_write_moov_tag(pb, mov, s);
4409 mov_flush_fragment(s);
4410 mov_write_mfra_tag(pb, mov);
4413 for (i = 0; i < mov->nb_streams; i++) {
4414 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4415 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4416 int64_t off = avio_tell(pb);
4418 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4419 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4420 avio_write(pb, buf, 7);
4421 avio_seek(pb, off, SEEK_SET);
4432 #if CONFIG_MOV_MUXER
4434 AVOutputFormat ff_mov_muxer = {
4436 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4437 .extensions = "mov",
4438 .priv_data_size = sizeof(MOVMuxContext),
4439 .audio_codec = AV_CODEC_ID_AAC,
4440 .video_codec = CONFIG_LIBX264_ENCODER ?
4441 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4442 .write_header = mov_write_header,
4443 .write_packet = mov_write_packet,
4444 .write_trailer = mov_write_trailer,
4445 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4446 .codec_tag = (const AVCodecTag* const []){
4447 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4449 .priv_class = &mov_muxer_class,
4452 #if CONFIG_TGP_MUXER
4454 AVOutputFormat ff_tgp_muxer = {
4456 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4457 .extensions = "3gp",
4458 .priv_data_size = sizeof(MOVMuxContext),
4459 .audio_codec = AV_CODEC_ID_AMR_NB,
4460 .video_codec = AV_CODEC_ID_H263,
4461 .write_header = mov_write_header,
4462 .write_packet = mov_write_packet,
4463 .write_trailer = mov_write_trailer,
4464 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4465 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4466 .priv_class = &tgp_muxer_class,
4469 #if CONFIG_MP4_MUXER
4471 AVOutputFormat ff_mp4_muxer = {
4473 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4474 .mime_type = "application/mp4",
4475 .extensions = "mp4",
4476 .priv_data_size = sizeof(MOVMuxContext),
4477 .audio_codec = AV_CODEC_ID_AAC,
4478 .video_codec = CONFIG_LIBX264_ENCODER ?
4479 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4480 .write_header = mov_write_header,
4481 .write_packet = mov_write_packet,
4482 .write_trailer = mov_write_trailer,
4483 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4484 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4485 .priv_class = &mp4_muxer_class,
4488 #if CONFIG_PSP_MUXER
4490 AVOutputFormat ff_psp_muxer = {
4492 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4493 .extensions = "mp4,psp",
4494 .priv_data_size = sizeof(MOVMuxContext),
4495 .audio_codec = AV_CODEC_ID_AAC,
4496 .video_codec = CONFIG_LIBX264_ENCODER ?
4497 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4498 .write_header = mov_write_header,
4499 .write_packet = mov_write_packet,
4500 .write_trailer = mov_write_trailer,
4501 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4502 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4503 .priv_class = &psp_muxer_class,
4506 #if CONFIG_TG2_MUXER
4508 AVOutputFormat ff_tg2_muxer = {
4510 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4511 .extensions = "3g2",
4512 .priv_data_size = sizeof(MOVMuxContext),
4513 .audio_codec = AV_CODEC_ID_AMR_NB,
4514 .video_codec = AV_CODEC_ID_H263,
4515 .write_header = mov_write_header,
4516 .write_packet = mov_write_packet,
4517 .write_trailer = mov_write_trailer,
4518 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4519 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4520 .priv_class = &tg2_muxer_class,
4523 #if CONFIG_IPOD_MUXER
4525 AVOutputFormat ff_ipod_muxer = {
4527 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4528 .mime_type = "application/mp4",
4529 .extensions = "m4v,m4a",
4530 .priv_data_size = sizeof(MOVMuxContext),
4531 .audio_codec = AV_CODEC_ID_AAC,
4532 .video_codec = AV_CODEC_ID_H264,
4533 .write_header = mov_write_header,
4534 .write_packet = mov_write_packet,
4535 .write_trailer = mov_write_trailer,
4536 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4537 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4538 .priv_class = &ipod_muxer_class,
4541 #if CONFIG_ISMV_MUXER
4543 AVOutputFormat ff_ismv_muxer = {
4545 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4546 .mime_type = "application/mp4",
4547 .extensions = "ismv,isma",
4548 .priv_data_size = sizeof(MOVMuxContext),
4549 .audio_codec = AV_CODEC_ID_AAC,
4550 .video_codec = AV_CODEC_ID_H264,
4551 .write_header = mov_write_header,
4552 .write_packet = mov_write_packet,
4553 .write_trailer = mov_write_trailer,
4554 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4555 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4556 .priv_class = &ismv_muxer_class,
4559 #if CONFIG_F4V_MUXER
4561 AVOutputFormat ff_f4v_muxer = {
4563 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4564 .mime_type = "application/f4v",
4565 .extensions = "f4v",
4566 .priv_data_size = sizeof(MOVMuxContext),
4567 .audio_codec = AV_CODEC_ID_AAC,
4568 .video_codec = AV_CODEC_ID_H264,
4569 .write_header = mov_write_header,
4570 .write_packet = mov_write_packet,
4571 .write_trailer = mov_write_trailer,
4572 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4573 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4574 .priv_class = &f4v_muxer_class,