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"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/dict.h"
50 static const AVOption options[] = {
51 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "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" },
53 { "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 },
54 { "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" },
55 { "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" },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
62 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
63 { "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},
64 { "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},
65 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
66 { "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},
67 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
75 #define MOV_CLASS(flavor)\
76 static const AVClass flavor ## _muxer_class = {\
77 .class_name = #flavor " muxer",\
78 .item_name = av_default_item_name,\
80 .version = LIBAVUTIL_VERSION_INT,\
83 static int get_moov_size(AVFormatContext *s);
85 //FIXME support 64 bit variant with wide placeholders
86 static int64_t update_size(AVIOContext *pb, int64_t pos)
88 int64_t curpos = avio_tell(pb);
89 avio_seek(pb, pos, SEEK_SET);
90 avio_wb32(pb, curpos - pos); /* rewrite size */
91 avio_seek(pb, curpos, SEEK_SET);
96 static int supports_edts(MOVMuxContext *mov)
98 // EDTS with fragments is tricky as we don't know the duration when its written
99 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
102 static int co64_required(const MOVTrack *track)
104 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
109 /* Chunk offset atom */
110 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
113 int mode64 = co64_required(track); // use 32 bit size variant if possible
114 int64_t pos = avio_tell(pb);
115 avio_wb32(pb, 0); /* size */
117 ffio_wfourcc(pb, "co64");
119 ffio_wfourcc(pb, "stco");
120 avio_wb32(pb, 0); /* version & flags */
121 avio_wb32(pb, track->chunkCount); /* entry count */
122 for (i = 0; i < track->entry; i++) {
123 if (!track->cluster[i].chunkNum)
126 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
128 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
130 return update_size(pb, pos);
133 /* Sample size atom */
134 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
137 int i, j, entries = 0, tst = -1, oldtst = -1;
139 int64_t pos = avio_tell(pb);
140 avio_wb32(pb, 0); /* size */
141 ffio_wfourcc(pb, "stsz");
142 avio_wb32(pb, 0); /* version & flags */
144 for (i = 0; i < track->entry; i++) {
145 tst = track->cluster[i].size / track->cluster[i].entries;
146 if (oldtst != -1 && tst != oldtst)
149 entries += track->cluster[i].entries;
151 if (equalChunks && track->entry) {
152 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
153 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
154 avio_wb32(pb, sSize); // sample size
155 avio_wb32(pb, entries); // sample count
157 avio_wb32(pb, 0); // sample size
158 avio_wb32(pb, entries); // sample count
159 for (i = 0; i < track->entry; i++) {
160 for (j = 0; j < track->cluster[i].entries; j++) {
161 avio_wb32(pb, track->cluster[i].size /
162 track->cluster[i].entries);
166 return update_size(pb, pos);
169 /* Sample to chunk atom */
170 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
172 int index = 0, oldval = -1, i;
173 int64_t entryPos, curpos;
175 int64_t pos = avio_tell(pb);
176 avio_wb32(pb, 0); /* size */
177 ffio_wfourcc(pb, "stsc");
178 avio_wb32(pb, 0); // version & flags
179 entryPos = avio_tell(pb);
180 avio_wb32(pb, track->chunkCount); // entry count
181 for (i = 0; i < track->entry; i++) {
182 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
183 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
184 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
185 avio_wb32(pb, 0x1); // sample description index
186 oldval = track->cluster[i].samples_in_chunk;
190 curpos = avio_tell(pb);
191 avio_seek(pb, entryPos, SEEK_SET);
192 avio_wb32(pb, index); // rewrite size
193 avio_seek(pb, curpos, SEEK_SET);
195 return update_size(pb, pos);
198 /* Sync sample atom */
199 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
201 int64_t curpos, entryPos;
203 int64_t pos = avio_tell(pb);
204 avio_wb32(pb, 0); // size
205 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
206 avio_wb32(pb, 0); // version & flags
207 entryPos = avio_tell(pb);
208 avio_wb32(pb, track->entry); // entry count
209 for (i = 0; i < track->entry; i++) {
210 if (track->cluster[i].flags & flag) {
211 avio_wb32(pb, i + 1);
215 curpos = avio_tell(pb);
216 avio_seek(pb, entryPos, SEEK_SET);
217 avio_wb32(pb, index); // rewrite size
218 avio_seek(pb, curpos, SEEK_SET);
219 return update_size(pb, pos);
222 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
224 avio_wb32(pb, 0x11); /* size */
225 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
226 else ffio_wfourcc(pb, "damr");
227 ffio_wfourcc(pb, "FFMP");
228 avio_w8(pb, 0); /* decoder version */
230 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
231 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
232 avio_w8(pb, 0x01); /* Frames per sample */
236 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
241 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
243 if (track->vos_len < 7)
247 ffio_wfourcc(pb, "dac3");
249 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
250 fscod = get_bits(&gbc, 2);
251 frmsizecod = get_bits(&gbc, 6);
252 bsid = get_bits(&gbc, 5);
253 bsmod = get_bits(&gbc, 3);
254 acmod = get_bits(&gbc, 3);
256 skip_bits(&gbc, 2); // dsurmod
258 if ((acmod & 1) && acmod != 1)
259 skip_bits(&gbc, 2); // cmixlev
261 skip_bits(&gbc, 2); // surmixlev
263 lfeon = get_bits1(&gbc);
265 init_put_bits(&pbc, buf, sizeof(buf));
266 put_bits(&pbc, 2, fscod);
267 put_bits(&pbc, 5, bsid);
268 put_bits(&pbc, 3, bsmod);
269 put_bits(&pbc, 3, acmod);
270 put_bits(&pbc, 1, lfeon);
271 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
272 put_bits(&pbc, 5, 0); // reserved
274 flush_put_bits(&pbc);
275 avio_write(pb, buf, sizeof(buf));
281 * This function writes extradata "as is".
282 * Extradata must be formatted like a valid atom (with size and tag).
284 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
286 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
287 return track->enc->extradata_size;
290 static int mov_write_enda_tag(AVIOContext *pb)
293 ffio_wfourcc(pb, "enda");
294 avio_wb16(pb, 1); /* little endian */
298 static int mov_write_enda_tag_be(AVIOContext *pb)
301 ffio_wfourcc(pb, "enda");
302 avio_wb16(pb, 0); /* big endian */
306 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
311 avio_w8(pb, (size >> (7 * i)) | 0x80);
312 avio_w8(pb, size & 0x7F);
315 static unsigned compute_avg_bitrate(MOVTrack *track)
319 if (!track->track_duration)
321 for (i = 0; i < track->entry; i++)
322 size += track->cluster[i].size;
323 return size * 8 * track->timescale / track->track_duration;
326 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
328 int64_t pos = avio_tell(pb);
329 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
330 unsigned avg_bitrate;
332 avio_wb32(pb, 0); // size
333 ffio_wfourcc(pb, "esds");
334 avio_wb32(pb, 0); // Version
337 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
338 avio_wb16(pb, track->track_id);
339 avio_w8(pb, 0x00); // flags (= no flags)
341 // DecoderConfig descriptor
342 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
344 // Object type indication
345 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
346 track->enc->codec_id == AV_CODEC_ID_MP3) &&
347 track->enc->sample_rate > 24000)
348 avio_w8(pb, 0x6B); // 11172-3
350 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
352 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
353 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
354 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
355 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
356 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
357 avio_w8(pb, 0x15); // flags (= Audiostream)
359 avio_w8(pb, 0x11); // flags (= Visualstream)
361 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
363 avg_bitrate = compute_avg_bitrate(track);
364 // maxbitrate (FIXME should be max rate in any 1 sec window)
365 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
366 avio_wb32(pb, avg_bitrate);
368 if (track->vos_len) {
369 // DecoderSpecific info descriptor
370 put_descr(pb, 0x05, track->vos_len);
371 avio_write(pb, track->vos_data, track->vos_len);
375 put_descr(pb, 0x06, 1);
377 return update_size(pb, pos);
380 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
382 return codec_id == AV_CODEC_ID_PCM_S24LE ||
383 codec_id == AV_CODEC_ID_PCM_S32LE ||
384 codec_id == AV_CODEC_ID_PCM_F32LE ||
385 codec_id == AV_CODEC_ID_PCM_F64LE;
388 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
390 return codec_id == AV_CODEC_ID_PCM_S24BE ||
391 codec_id == AV_CODEC_ID_PCM_S32BE ||
392 codec_id == AV_CODEC_ID_PCM_F32BE ||
393 codec_id == AV_CODEC_ID_PCM_F64BE;
396 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
398 int64_t pos = avio_tell(pb);
400 avio_wl32(pb, track->tag); // store it byteswapped
401 track->enc->codec_tag = av_bswap16(track->tag >> 16);
402 ff_put_wav_header(pb, track->enc);
403 return update_size(pb, pos);
406 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
408 int64_t pos = avio_tell(pb);
410 ffio_wfourcc(pb, "wfex");
411 ff_put_wav_header(pb, track->enc);
412 return update_size(pb, pos);
415 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
417 uint32_t layout_tag, bitmap;
418 int64_t pos = avio_tell(pb);
420 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
421 track->enc->channel_layout,
424 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
425 "lack of channel information\n");
429 avio_wb32(pb, 0); // Size
430 ffio_wfourcc(pb, "chan"); // Type
431 avio_w8(pb, 0); // Version
432 avio_wb24(pb, 0); // Flags
433 avio_wb32(pb, layout_tag); // mChannelLayoutTag
434 avio_wb32(pb, bitmap); // mChannelBitmap
435 avio_wb32(pb, 0); // mNumberChannelDescriptions
437 return update_size(pb, pos);
440 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
442 int64_t pos = avio_tell(pb);
444 avio_wb32(pb, 0); /* size */
445 ffio_wfourcc(pb, "wave");
447 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
448 avio_wb32(pb, 12); /* size */
449 ffio_wfourcc(pb, "frma");
450 avio_wl32(pb, track->tag);
453 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
454 /* useless atom needed by mplayer, ipod, not needed by quicktime */
455 avio_wb32(pb, 12); /* size */
456 ffio_wfourcc(pb, "mp4a");
458 mov_write_esds_tag(pb, track);
459 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
460 mov_write_enda_tag(pb);
461 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
462 mov_write_enda_tag_be(pb);
463 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
464 mov_write_amr_tag(pb, track);
465 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
466 mov_write_ac3_tag(pb, track);
467 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
468 track->enc->codec_id == AV_CODEC_ID_QDM2) {
469 mov_write_extradata_tag(pb, track);
470 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
471 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
472 mov_write_ms_tag(pb, track);
475 avio_wb32(pb, 8); /* size */
476 avio_wb32(pb, 0); /* null tag */
478 return update_size(pb, pos);
481 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
484 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
485 int unescaped_size, seq_found = 0;
486 int level = 0, interlace = 0;
487 int packet_seq = track->vc1_info.packet_seq;
488 int packet_entry = track->vc1_info.packet_entry;
489 int slices = track->vc1_info.slices;
492 if (track->start_dts == AV_NOPTS_VALUE) {
493 /* No packets written yet, vc1_info isn't authoritative yet. */
494 /* Assume inline sequence and entry headers. This will be
495 * overwritten at the end if the file is seekable. */
496 packet_seq = packet_entry = 1;
499 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
501 return AVERROR(ENOMEM);
502 start = find_next_marker(track->vos_data, end);
503 for (next = start; next < end; start = next) {
506 next = find_next_marker(start + 4, end);
507 size = next - start - 4;
510 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
511 init_get_bits(&gb, unescaped, 8 * unescaped_size);
512 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
513 int profile = get_bits(&gb, 2);
514 if (profile != PROFILE_ADVANCED) {
516 return AVERROR(ENOSYS);
519 level = get_bits(&gb, 3);
520 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
522 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
523 skip_bits(&gb, 1); /* broadcast */
524 interlace = get_bits1(&gb);
525 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
530 return AVERROR(ENOSYS);
533 init_put_bits(&pbc, buf, 7);
534 /* VC1DecSpecStruc */
535 put_bits(&pbc, 4, 12); /* profile - advanced */
536 put_bits(&pbc, 3, level);
537 put_bits(&pbc, 1, 0); /* reserved */
538 /* VC1AdvDecSpecStruc */
539 put_bits(&pbc, 3, level);
540 put_bits(&pbc, 1, 0); /* cbr */
541 put_bits(&pbc, 6, 0); /* reserved */
542 put_bits(&pbc, 1, !interlace); /* no interlace */
543 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
544 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
545 put_bits(&pbc, 1, !slices); /* no slice code */
546 put_bits(&pbc, 1, 0); /* no bframe */
547 put_bits(&pbc, 1, 0); /* reserved */
548 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
549 flush_put_bits(&pbc);
556 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
558 uint8_t buf[7] = { 0 };
561 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
564 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
565 ffio_wfourcc(pb, "dvc1");
566 track->vc1_info.struct_offset = avio_tell(pb);
567 avio_write(pb, buf, sizeof(buf));
568 avio_write(pb, track->vos_data, track->vos_len);
573 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
575 avio_wb32(pb, track->vos_len + 8);
576 ffio_wfourcc(pb, "glbl");
577 avio_write(pb, track->vos_data, track->vos_len);
578 return 8 + track->vos_len;
582 * Compute flags for 'lpcm' tag.
583 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
585 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
588 case AV_CODEC_ID_PCM_F32BE:
589 case AV_CODEC_ID_PCM_F64BE:
591 case AV_CODEC_ID_PCM_F32LE:
592 case AV_CODEC_ID_PCM_F64LE:
594 case AV_CODEC_ID_PCM_U8:
596 case AV_CODEC_ID_PCM_S16BE:
597 case AV_CODEC_ID_PCM_S24BE:
598 case AV_CODEC_ID_PCM_S32BE:
600 case AV_CODEC_ID_PCM_S8:
601 case AV_CODEC_ID_PCM_S16LE:
602 case AV_CODEC_ID_PCM_S24LE:
603 case AV_CODEC_ID_PCM_S32LE:
610 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
614 if (cluster_idx >= track->entry)
617 if (cluster_idx + 1 == track->entry)
618 next_dts = track->track_duration + track->start_dts;
620 next_dts = track->cluster[cluster_idx + 1].dts;
622 next_dts -= track->cluster[cluster_idx].dts;
624 av_assert0(next_dts >= 0);
625 av_assert0(next_dts <= INT_MAX);
630 static int get_samples_per_packet(MOVTrack *track)
632 int i, first_duration;
634 // return track->enc->frame_size;
636 /* use 1 for raw PCM */
637 if (!track->audio_vbr)
640 /* check to see if duration is constant for all clusters */
643 first_duration = get_cluster_duration(track, 0);
644 for (i = 1; i < track->entry; i++) {
645 if (get_cluster_duration(track, i) != first_duration)
648 return first_duration;
651 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
653 int64_t pos = avio_tell(pb);
655 uint32_t tag = track->tag;
657 if (track->mode == MODE_MOV) {
658 if (track->timescale > UINT16_MAX) {
659 if (mov_get_lpcm_flags(track->enc->codec_id))
660 tag = AV_RL32("lpcm");
662 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
663 mov_pcm_be_gt16(track->enc->codec_id) ||
664 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
665 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
666 track->enc->codec_id == AV_CODEC_ID_QDM2) {
671 avio_wb32(pb, 0); /* size */
672 avio_wl32(pb, tag); // store it byteswapped
673 avio_wb32(pb, 0); /* Reserved */
674 avio_wb16(pb, 0); /* Reserved */
675 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
677 /* SoundDescription */
678 avio_wb16(pb, version); /* Version */
679 avio_wb16(pb, 0); /* Revision level */
680 avio_wb32(pb, 0); /* Reserved */
685 avio_wb16(pb, 0xfffe);
687 avio_wb32(pb, 0x00010000);
689 avio_wb64(pb, av_double2int(track->enc->sample_rate));
690 avio_wb32(pb, track->enc->channels);
691 avio_wb32(pb, 0x7F000000);
692 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
693 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
694 avio_wb32(pb, track->sample_size);
695 avio_wb32(pb, get_samples_per_packet(track));
697 if (track->mode == MODE_MOV) {
698 avio_wb16(pb, track->enc->channels);
699 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
700 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
701 avio_wb16(pb, 8); /* bits per sample */
704 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
705 } else { /* reserved for mp4/3gp */
711 avio_wb16(pb, 0); /* packet size (= 0) */
712 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
713 track->enc->sample_rate : 0);
714 avio_wb16(pb, 0); /* Reserved */
717 if (version == 1) { /* SoundDescription V1 extended info */
718 if (mov_pcm_le_gt16(track->enc->codec_id) ||
719 mov_pcm_be_gt16(track->enc->codec_id))
720 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
722 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
723 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
724 avio_wb32(pb, track->sample_size); /* Bytes per frame */
725 avio_wb32(pb, 2); /* Bytes per sample */
728 if (track->mode == MODE_MOV &&
729 (track->enc->codec_id == AV_CODEC_ID_AAC ||
730 track->enc->codec_id == AV_CODEC_ID_AC3 ||
731 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
732 track->enc->codec_id == AV_CODEC_ID_ALAC ||
733 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
734 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
735 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
736 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
737 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
738 mov_write_wave_tag(pb, track);
739 else if (track->tag == MKTAG('m','p','4','a'))
740 mov_write_esds_tag(pb, track);
741 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
742 mov_write_amr_tag(pb, track);
743 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
744 mov_write_ac3_tag(pb, track);
745 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
746 mov_write_extradata_tag(pb, track);
747 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
748 mov_write_wfex_tag(pb, track);
749 else if (track->vos_len > 0)
750 mov_write_glbl_tag(pb, track);
752 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
753 mov_write_chan_tag(pb, track);
755 return update_size(pb, pos);
758 static int mov_write_d263_tag(AVIOContext *pb)
760 avio_wb32(pb, 0xf); /* size */
761 ffio_wfourcc(pb, "d263");
762 ffio_wfourcc(pb, "FFMP");
763 avio_w8(pb, 0); /* decoder version */
764 /* FIXME use AVCodecContext level/profile, when encoder will set values */
765 avio_w8(pb, 0xa); /* level */
766 avio_w8(pb, 0); /* profile */
770 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
772 int64_t pos = avio_tell(pb);
775 ffio_wfourcc(pb, "avcC");
776 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
777 return update_size(pb, pos);
780 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
782 int64_t pos = avio_tell(pb);
785 ffio_wfourcc(pb, "hvcC");
786 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
787 return update_size(pb, pos);
790 /* also used by all avid codecs (dv, imx, meridien) and their variants */
791 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
794 avio_wb32(pb, 24); /* size */
795 ffio_wfourcc(pb, "ACLR");
796 ffio_wfourcc(pb, "ACLR");
797 ffio_wfourcc(pb, "0001");
798 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
799 avio_wb32(pb, 0); /* unknown */
801 avio_wb32(pb, 24); /* size */
802 ffio_wfourcc(pb, "APRG");
803 ffio_wfourcc(pb, "APRG");
804 ffio_wfourcc(pb, "0001");
805 avio_wb32(pb, 1); /* unknown */
806 avio_wb32(pb, 0); /* unknown */
808 avio_wb32(pb, 120); /* size */
809 ffio_wfourcc(pb, "ARES");
810 ffio_wfourcc(pb, "ARES");
811 ffio_wfourcc(pb, "0001");
812 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
813 avio_wb32(pb, track->enc->width);
814 /* values below are based on samples created with quicktime and avid codecs */
815 if (track->vos_data[5] & 2) { // interlaced
816 avio_wb32(pb, track->enc->height / 2);
817 avio_wb32(pb, 2); /* unknown */
818 avio_wb32(pb, 0); /* unknown */
819 avio_wb32(pb, 4); /* unknown */
821 avio_wb32(pb, track->enc->height);
822 avio_wb32(pb, 1); /* unknown */
823 avio_wb32(pb, 0); /* unknown */
824 if (track->enc->height == 1080)
825 avio_wb32(pb, 5); /* unknown */
827 avio_wb32(pb, 6); /* unknown */
830 for (i = 0; i < 10; i++)
833 /* extra padding for stsd needed */
838 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
840 int tag = track->enc->codec_tag;
842 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
845 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
846 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
847 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
848 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
849 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
850 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
851 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
852 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
853 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
858 static const AVCodecTag codec_ipod_tags[] = {
859 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
860 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
861 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
862 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
863 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
864 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
865 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
866 { AV_CODEC_ID_NONE, 0 },
869 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
871 int tag = track->enc->codec_tag;
873 // keep original tag for subs, ipod supports both formats
874 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
875 (tag == MKTAG('t', 'x', '3', 'g') ||
876 tag == MKTAG('t', 'e', 'x', 't'))))
877 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
879 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
880 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
881 "Quicktime/Ipod might not play the file\n");
886 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
890 if (track->enc->width == 720) { /* SD */
891 if (track->enc->height == 480) { /* NTSC */
892 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
893 else tag = MKTAG('d','v','c',' ');
894 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
895 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
896 else tag = MKTAG('d','v','p','p');
897 } else if (track->enc->height == 720) { /* HD 720 line */
898 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
899 else tag = MKTAG('d','v','h','p');
900 } else if (track->enc->height == 1080) { /* HD 1080 line */
901 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
902 else tag = MKTAG('d','v','h','6');
904 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
911 static AVRational find_fps(AVFormatContext *s, AVStream *st)
913 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
914 /* if the codec time base makes no sense, try to fallback on stream frame rate */
915 if (av_timecode_check_frame_rate(rate) < 0) {
916 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
917 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
918 rate = st->avg_frame_rate;
924 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
926 int tag = track->enc->codec_tag;
927 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
928 AVStream *st = track->st;
929 int rate = av_q2d(find_fps(s, st));
932 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
934 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
935 if (track->enc->width == 1280 && track->enc->height == 720) {
937 if (rate == 24) tag = MKTAG('x','d','v','4');
938 else if (rate == 25) tag = MKTAG('x','d','v','5');
939 else if (rate == 30) tag = MKTAG('x','d','v','1');
940 else if (rate == 50) tag = MKTAG('x','d','v','a');
941 else if (rate == 60) tag = MKTAG('x','d','v','9');
943 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
945 if (rate == 24) tag = MKTAG('x','d','v','6');
946 else if (rate == 25) tag = MKTAG('x','d','v','7');
947 else if (rate == 30) tag = MKTAG('x','d','v','8');
949 if (rate == 25) tag = MKTAG('x','d','v','3');
950 else if (rate == 30) tag = MKTAG('x','d','v','2');
952 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
954 if (rate == 24) tag = MKTAG('x','d','v','d');
955 else if (rate == 25) tag = MKTAG('x','d','v','e');
956 else if (rate == 30) tag = MKTAG('x','d','v','f');
958 if (rate == 25) tag = MKTAG('x','d','v','c');
959 else if (rate == 30) tag = MKTAG('x','d','v','b');
962 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
963 if (track->enc->width == 1280 && track->enc->height == 720) {
965 if (rate == 24) tag = MKTAG('x','d','5','4');
966 else if (rate == 25) tag = MKTAG('x','d','5','5');
967 else if (rate == 30) tag = MKTAG('x','d','5','1');
968 else if (rate == 50) tag = MKTAG('x','d','5','a');
969 else if (rate == 60) tag = MKTAG('x','d','5','9');
971 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
973 if (rate == 24) tag = MKTAG('x','d','5','d');
974 else if (rate == 25) tag = MKTAG('x','d','5','e');
975 else if (rate == 30) tag = MKTAG('x','d','5','f');
977 if (rate == 25) tag = MKTAG('x','d','5','c');
978 else if (rate == 30) tag = MKTAG('x','d','5','b');
986 static const struct {
987 enum AVPixelFormat pix_fmt;
990 } mov_pix_fmt_tags[] = {
991 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
992 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
993 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
994 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
995 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
996 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
997 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
998 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
999 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1000 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1001 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1002 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1003 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1004 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1005 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1008 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1010 int tag = track->enc->codec_tag;
1013 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1014 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1015 tag = mov_pix_fmt_tags[i].tag;
1016 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1017 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1025 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1027 int tag = track->enc->codec_tag;
1029 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1030 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1031 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1032 track->enc->codec_id == AV_CODEC_ID_H263 ||
1033 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1034 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1035 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1036 tag = mov_get_dv_codec_tag(s, track);
1037 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1038 tag = mov_get_rawvideo_codec_tag(s, track);
1039 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1040 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1041 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1042 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1043 if (!tag) { // if no mac fcc found, try with Microsoft tags
1044 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1046 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1047 "the file may be unplayable!\n");
1049 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1050 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1051 if (!tag) { // if no mac fcc found, try with Microsoft tags
1052 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1054 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1055 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1056 "the file may be unplayable!\n");
1059 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1060 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1066 static const AVCodecTag codec_3gp_tags[] = {
1067 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1068 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1069 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1070 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1071 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1072 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1073 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1074 { AV_CODEC_ID_NONE, 0 },
1077 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1078 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1079 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1080 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1081 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1082 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1083 { AV_CODEC_ID_NONE, 0 },
1086 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1090 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1091 tag = mp4_get_codec_tag(s, track);
1092 else if (track->mode == MODE_ISM) {
1093 tag = mp4_get_codec_tag(s, track);
1094 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1095 tag = MKTAG('w', 'm', 'a', ' ');
1096 } else if (track->mode == MODE_IPOD)
1097 tag = ipod_get_codec_tag(s, track);
1098 else if (track->mode & MODE_3GP)
1099 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1100 else if (track->mode == MODE_F4V)
1101 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1103 tag = mov_get_codec_tag(s, track);
1108 /** Write uuid atom.
1109 * Needed to make file play in iPods running newest firmware
1110 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1112 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1115 ffio_wfourcc(pb, "uuid");
1116 avio_wb32(pb, 0x6b6840f2);
1117 avio_wb32(pb, 0x5f244fc5);
1118 avio_wb32(pb, 0xba39a51b);
1119 avio_wb32(pb, 0xcf0323f3);
1124 static const uint16_t fiel_data[] = {
1125 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1128 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1130 unsigned mov_field_order = 0;
1131 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1132 mov_field_order = fiel_data[track->enc->field_order];
1136 ffio_wfourcc(pb, "fiel");
1137 avio_wb16(pb, mov_field_order);
1141 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1143 int64_t pos = avio_tell(pb);
1144 avio_wb32(pb, 0); /* size */
1145 avio_wl32(pb, track->tag); // store it byteswapped
1146 avio_wb32(pb, 0); /* Reserved */
1147 avio_wb16(pb, 0); /* Reserved */
1148 avio_wb16(pb, 1); /* Data-reference index */
1150 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1151 mov_write_esds_tag(pb, track);
1152 else if (track->enc->extradata_size)
1153 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1155 return update_size(pb, pos);
1158 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1161 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1162 track->enc->sample_aspect_ratio.den, INT_MAX);
1165 ffio_wfourcc(pb, "pasp");
1166 avio_wb32(pb, sar.num);
1167 avio_wb32(pb, sar.den);
1171 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1173 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1174 || (track->enc->width == 1440 && track->enc->height == 1080)
1175 || (track->enc->width == 1920 && track->enc->height == 1080);
1177 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name) {
1178 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1179 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1180 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1181 AVStream *st = track->st;
1182 int rate = av_q2d(find_fps(NULL, st));
1183 av_strlcatf(compressor_name, len, "XDCAM");
1184 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1185 av_strlcatf(compressor_name, len, " HD422");
1186 } else if(track->enc->width == 1440) {
1187 av_strlcatf(compressor_name, len, " HD");
1189 av_strlcatf(compressor_name, len, " EX");
1191 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1193 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1197 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1199 int64_t pos = avio_tell(pb);
1200 char compressor_name[32] = { 0 };
1202 avio_wb32(pb, 0); /* size */
1203 avio_wl32(pb, track->tag); // store it byteswapped
1204 avio_wb32(pb, 0); /* Reserved */
1205 avio_wb16(pb, 0); /* Reserved */
1206 avio_wb16(pb, 1); /* Data-reference index */
1208 avio_wb16(pb, 0); /* Codec stream version */
1209 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1210 if (track->mode == MODE_MOV) {
1211 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1212 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1213 avio_wb32(pb, 0); /* Temporal Quality */
1214 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1216 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1217 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1220 avio_wb32(pb, 0); /* Reserved */
1221 avio_wb32(pb, 0); /* Reserved */
1222 avio_wb32(pb, 0); /* Reserved */
1224 avio_wb16(pb, track->enc->width); /* Video width */
1225 avio_wb16(pb, track->height); /* Video height */
1226 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1227 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1228 avio_wb32(pb, 0); /* Data size (= 0) */
1229 avio_wb16(pb, 1); /* Frame count (= 1) */
1231 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1232 find_compressor(compressor_name, 32, track);
1233 avio_w8(pb, strlen(compressor_name));
1234 avio_write(pb, compressor_name, 31);
1236 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1237 avio_wb16(pb, track->enc->bits_per_coded_sample);
1239 avio_wb16(pb, 0x18); /* Reserved */
1240 avio_wb16(pb, 0xffff); /* Reserved */
1241 if (track->tag == MKTAG('m','p','4','v'))
1242 mov_write_esds_tag(pb, track);
1243 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1244 mov_write_d263_tag(pb);
1245 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1246 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1247 mov_write_extradata_tag(pb, track);
1249 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1250 mov_write_avid_tag(pb, track);
1251 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1252 mov_write_hvcc_tag(pb, track);
1253 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1254 mov_write_avcc_tag(pb, track);
1255 if (track->mode == MODE_IPOD)
1256 mov_write_uuid_tag_ipod(pb);
1257 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1258 mov_write_dvc1_tag(pb, track);
1259 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1260 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1261 /* Don't write any potential extradata here - the cropping
1262 * is signalled via the normal width/height fields. */
1263 } else if (track->vos_len > 0)
1264 mov_write_glbl_tag(pb, track);
1266 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1267 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1268 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1269 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1270 mov_write_fiel_tag(pb, track);
1272 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1273 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1274 mov_write_pasp_tag(pb, track);
1277 return update_size(pb, pos);
1280 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1282 int64_t pos = avio_tell(pb);
1283 avio_wb32(pb, 0); /* size */
1284 ffio_wfourcc(pb, "rtp ");
1285 avio_wb32(pb, 0); /* Reserved */
1286 avio_wb16(pb, 0); /* Reserved */
1287 avio_wb16(pb, 1); /* Data-reference index */
1289 avio_wb16(pb, 1); /* Hint track version */
1290 avio_wb16(pb, 1); /* Highest compatible version */
1291 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1293 avio_wb32(pb, 12); /* size */
1294 ffio_wfourcc(pb, "tims");
1295 avio_wb32(pb, track->timescale);
1297 return update_size(pb, pos);
1300 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1302 int64_t pos = avio_tell(pb);
1304 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1305 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1307 if (nb_frames > 255) {
1308 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1309 return AVERROR(EINVAL);
1312 avio_wb32(pb, 0); /* size */
1313 ffio_wfourcc(pb, "tmcd"); /* Data format */
1314 avio_wb32(pb, 0); /* Reserved */
1315 avio_wb32(pb, 1); /* Data reference index */
1316 avio_wb32(pb, 0); /* Flags */
1317 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1318 avio_wb32(pb, track->timescale); /* Timescale */
1319 avio_wb32(pb, frame_duration); /* Frame duration */
1320 avio_w8(pb, nb_frames); /* Number of frames */
1321 avio_wb24(pb, 0); /* Reserved */
1322 /* TODO: source reference string */
1325 avio_wb32(pb, 0); /* size */
1326 ffio_wfourcc(pb, "tmcd"); /* Data format */
1327 avio_wb32(pb, 0); /* Reserved */
1328 avio_wb32(pb, 1); /* Data reference index */
1329 if (track->enc->extradata_size)
1330 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1332 return update_size(pb, pos);
1335 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1337 int64_t pos = avio_tell(pb);
1338 avio_wb32(pb, 0); /* size */
1339 ffio_wfourcc(pb, "stsd");
1340 avio_wb32(pb, 0); /* version & flags */
1341 avio_wb32(pb, 1); /* entry count */
1342 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1343 mov_write_video_tag(pb, track);
1344 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1345 mov_write_audio_tag(pb, track);
1346 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1347 mov_write_subtitle_tag(pb, track);
1348 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1349 mov_write_rtp_tag(pb, track);
1350 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1351 mov_write_tmcd_tag(pb, track);
1352 return update_size(pb, pos);
1355 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1357 MOVStts *ctts_entries;
1358 uint32_t entries = 0;
1362 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1363 ctts_entries[0].count = 1;
1364 ctts_entries[0].duration = track->cluster[0].cts;
1365 for (i = 1; i < track->entry; i++) {
1366 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1367 ctts_entries[entries].count++; /* compress */
1370 ctts_entries[entries].duration = track->cluster[i].cts;
1371 ctts_entries[entries].count = 1;
1374 entries++; /* last one */
1375 atom_size = 16 + (entries * 8);
1376 avio_wb32(pb, atom_size); /* size */
1377 ffio_wfourcc(pb, "ctts");
1378 avio_wb32(pb, 0); /* version & flags */
1379 avio_wb32(pb, entries); /* entry count */
1380 for (i = 0; i < entries; i++) {
1381 avio_wb32(pb, ctts_entries[i].count);
1382 avio_wb32(pb, ctts_entries[i].duration);
1384 av_free(ctts_entries);
1388 /* Time to sample atom */
1389 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1391 MOVStts *stts_entries;
1392 uint32_t entries = -1;
1396 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1397 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1398 stts_entries[0].count = track->sample_count;
1399 stts_entries[0].duration = 1;
1402 stts_entries = track->entry ?
1403 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1405 for (i = 0; i < track->entry; i++) {
1406 int duration = get_cluster_duration(track, i);
1407 if (i && duration == stts_entries[entries].duration) {
1408 stts_entries[entries].count++; /* compress */
1411 stts_entries[entries].duration = duration;
1412 stts_entries[entries].count = 1;
1415 entries++; /* last one */
1417 atom_size = 16 + (entries * 8);
1418 avio_wb32(pb, atom_size); /* size */
1419 ffio_wfourcc(pb, "stts");
1420 avio_wb32(pb, 0); /* version & flags */
1421 avio_wb32(pb, entries); /* entry count */
1422 for (i = 0; i < entries; i++) {
1423 avio_wb32(pb, stts_entries[i].count);
1424 avio_wb32(pb, stts_entries[i].duration);
1426 av_free(stts_entries);
1430 static int mov_write_dref_tag(AVIOContext *pb)
1432 avio_wb32(pb, 28); /* size */
1433 ffio_wfourcc(pb, "dref");
1434 avio_wb32(pb, 0); /* version & flags */
1435 avio_wb32(pb, 1); /* entry count */
1437 avio_wb32(pb, 0xc); /* size */
1438 //FIXME add the alis and rsrc atom
1439 ffio_wfourcc(pb, "url ");
1440 avio_wb32(pb, 1); /* version & flags */
1445 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1447 int64_t pos = avio_tell(pb);
1448 avio_wb32(pb, 0); /* size */
1449 ffio_wfourcc(pb, "stbl");
1450 mov_write_stsd_tag(pb, track);
1451 mov_write_stts_tag(pb, track);
1452 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1453 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1454 track->has_keyframes && track->has_keyframes < track->entry)
1455 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1456 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1457 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1458 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1459 track->flags & MOV_TRACK_CTTS)
1460 mov_write_ctts_tag(pb, track);
1461 mov_write_stsc_tag(pb, track);
1462 mov_write_stsz_tag(pb, track);
1463 mov_write_stco_tag(pb, track);
1464 return update_size(pb, pos);
1467 static int mov_write_dinf_tag(AVIOContext *pb)
1469 int64_t pos = avio_tell(pb);
1470 avio_wb32(pb, 0); /* size */
1471 ffio_wfourcc(pb, "dinf");
1472 mov_write_dref_tag(pb);
1473 return update_size(pb, pos);
1476 static int mov_write_nmhd_tag(AVIOContext *pb)
1479 ffio_wfourcc(pb, "nmhd");
1484 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1486 int64_t pos = avio_tell(pb);
1487 const char *font = "Lucida Grande";
1488 avio_wb32(pb, 0); /* size */
1489 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1490 avio_wb32(pb, 0); /* version & flags */
1491 avio_wb16(pb, 0); /* text font */
1492 avio_wb16(pb, 0); /* text face */
1493 avio_wb16(pb, 12); /* text size */
1494 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1495 avio_wb16(pb, 0x0000); /* text color (red) */
1496 avio_wb16(pb, 0x0000); /* text color (green) */
1497 avio_wb16(pb, 0x0000); /* text color (blue) */
1498 avio_wb16(pb, 0xffff); /* background color (red) */
1499 avio_wb16(pb, 0xffff); /* background color (green) */
1500 avio_wb16(pb, 0xffff); /* background color (blue) */
1501 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1502 avio_write(pb, font, strlen(font)); /* font name */
1503 return update_size(pb, pos);
1506 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1508 int64_t pos = avio_tell(pb);
1509 avio_wb32(pb, 0); /* size */
1510 ffio_wfourcc(pb, "gmhd");
1511 avio_wb32(pb, 0x18); /* gmin size */
1512 ffio_wfourcc(pb, "gmin");/* generic media info */
1513 avio_wb32(pb, 0); /* version & flags */
1514 avio_wb16(pb, 0x40); /* graphics mode = */
1515 avio_wb16(pb, 0x8000); /* opColor (r?) */
1516 avio_wb16(pb, 0x8000); /* opColor (g?) */
1517 avio_wb16(pb, 0x8000); /* opColor (b?) */
1518 avio_wb16(pb, 0); /* balance */
1519 avio_wb16(pb, 0); /* reserved */
1522 * This special text atom is required for
1523 * Apple Quicktime chapters. The contents
1524 * don't appear to be documented, so the
1525 * bytes are copied verbatim.
1527 if (track->tag != MKTAG('c','6','0','8')) {
1528 avio_wb32(pb, 0x2C); /* size */
1529 ffio_wfourcc(pb, "text");
1530 avio_wb16(pb, 0x01);
1531 avio_wb32(pb, 0x00);
1532 avio_wb32(pb, 0x00);
1533 avio_wb32(pb, 0x00);
1534 avio_wb32(pb, 0x01);
1535 avio_wb32(pb, 0x00);
1536 avio_wb32(pb, 0x00);
1537 avio_wb32(pb, 0x00);
1538 avio_wb32(pb, 0x00004000);
1539 avio_wb16(pb, 0x0000);
1542 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1543 int64_t tmcd_pos = avio_tell(pb);
1544 avio_wb32(pb, 0); /* size */
1545 ffio_wfourcc(pb, "tmcd");
1546 mov_write_tcmi_tag(pb, track);
1547 update_size(pb, tmcd_pos);
1549 return update_size(pb, pos);
1552 static int mov_write_smhd_tag(AVIOContext *pb)
1554 avio_wb32(pb, 16); /* size */
1555 ffio_wfourcc(pb, "smhd");
1556 avio_wb32(pb, 0); /* version & flags */
1557 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1558 avio_wb16(pb, 0); /* reserved */
1562 static int mov_write_vmhd_tag(AVIOContext *pb)
1564 avio_wb32(pb, 0x14); /* size (always 0x14) */
1565 ffio_wfourcc(pb, "vmhd");
1566 avio_wb32(pb, 0x01); /* version & flags */
1567 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1571 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1573 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1574 int64_t pos = avio_tell(pb);
1578 descr = "DataHandler";
1581 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1582 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1584 descr = "VideoHandler";
1585 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1587 descr = "SoundHandler";
1588 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1589 if (track->tag == MKTAG('c','6','0','8')) {
1591 descr = "ClosedCaptionHandler";
1593 if (track->tag == MKTAG('t','x','3','g')) {
1595 } else if (track->tag == MKTAG('m','p','4','s')) {
1600 descr = "SubtitleHandler";
1602 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1604 descr = "HintHandler";
1605 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1607 descr = "TimeCodeHandler";
1610 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1611 track->enc->codec_tag);
1613 av_log(track->enc, AV_LOG_WARNING,
1614 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1615 tag_buf, track->enc->codec_tag);
1619 avio_wb32(pb, 0); /* size */
1620 ffio_wfourcc(pb, "hdlr");
1621 avio_wb32(pb, 0); /* Version & flags */
1622 avio_write(pb, hdlr, 4); /* handler */
1623 ffio_wfourcc(pb, hdlr_type); /* handler type */
1624 avio_wb32(pb, 0); /* reserved */
1625 avio_wb32(pb, 0); /* reserved */
1626 avio_wb32(pb, 0); /* reserved */
1627 if (!track || track->mode == MODE_MOV)
1628 avio_w8(pb, strlen(descr)); /* pascal string */
1629 avio_write(pb, descr, strlen(descr)); /* handler description */
1630 if (track && track->mode != MODE_MOV)
1631 avio_w8(pb, 0); /* c string */
1632 return update_size(pb, pos);
1635 static int mov_write_hmhd_tag(AVIOContext *pb)
1637 /* This atom must be present, but leaving the values at zero
1638 * seems harmless. */
1639 avio_wb32(pb, 28); /* size */
1640 ffio_wfourcc(pb, "hmhd");
1641 avio_wb32(pb, 0); /* version, flags */
1642 avio_wb16(pb, 0); /* maxPDUsize */
1643 avio_wb16(pb, 0); /* avgPDUsize */
1644 avio_wb32(pb, 0); /* maxbitrate */
1645 avio_wb32(pb, 0); /* avgbitrate */
1646 avio_wb32(pb, 0); /* reserved */
1650 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1652 int64_t pos = avio_tell(pb);
1653 avio_wb32(pb, 0); /* size */
1654 ffio_wfourcc(pb, "minf");
1655 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1656 mov_write_vmhd_tag(pb);
1657 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1658 mov_write_smhd_tag(pb);
1659 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1660 if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
1661 mov_write_gmhd_tag(pb, track);
1663 mov_write_nmhd_tag(pb);
1665 } else if (track->tag == MKTAG('r','t','p',' ')) {
1666 mov_write_hmhd_tag(pb);
1667 } else if (track->tag == MKTAG('t','m','c','d')) {
1668 mov_write_gmhd_tag(pb, track);
1670 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1671 mov_write_hdlr_tag(pb, NULL);
1672 mov_write_dinf_tag(pb);
1673 mov_write_stbl_tag(pb, track);
1674 return update_size(pb, pos);
1677 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1679 int version = track->track_duration < INT32_MAX ? 0 : 1;
1681 if (track->mode == MODE_ISM)
1684 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1685 ffio_wfourcc(pb, "mdhd");
1686 avio_w8(pb, version);
1687 avio_wb24(pb, 0); /* flags */
1689 avio_wb64(pb, track->time);
1690 avio_wb64(pb, track->time);
1692 avio_wb32(pb, track->time); /* creation time */
1693 avio_wb32(pb, track->time); /* modification time */
1695 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1697 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1699 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1700 avio_wb16(pb, track->language); /* language */
1701 avio_wb16(pb, 0); /* reserved (quality) */
1703 if (version != 0 && track->mode == MODE_MOV) {
1704 av_log(NULL, AV_LOG_ERROR,
1705 "FATAL error, file duration too long for timebase, this file will not be\n"
1706 "playable with quicktime. Choose a different timebase or a different\n"
1707 "container format\n");
1713 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1715 int64_t pos = avio_tell(pb);
1716 avio_wb32(pb, 0); /* size */
1717 ffio_wfourcc(pb, "mdia");
1718 mov_write_mdhd_tag(pb, track);
1719 mov_write_hdlr_tag(pb, track);
1720 mov_write_minf_tag(pb, track);
1721 return update_size(pb, pos);
1724 /* transformation matrix
1728 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1729 int16_t d, int16_t tx, int16_t ty)
1731 avio_wb32(pb, a << 16); /* 16.16 format */
1732 avio_wb32(pb, b << 16); /* 16.16 format */
1733 avio_wb32(pb, 0); /* u in 2.30 format */
1734 avio_wb32(pb, c << 16); /* 16.16 format */
1735 avio_wb32(pb, d << 16); /* 16.16 format */
1736 avio_wb32(pb, 0); /* v in 2.30 format */
1737 avio_wb32(pb, tx << 16); /* 16.16 format */
1738 avio_wb32(pb, ty << 16); /* 16.16 format */
1739 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1742 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1744 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1745 track->timescale, AV_ROUND_UP);
1746 int version = duration < INT32_MAX ? 0 : 1;
1749 if (track->mode == MODE_ISM)
1752 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1753 ffio_wfourcc(pb, "tkhd");
1754 avio_w8(pb, version);
1755 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1756 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1757 MOV_TKHD_FLAG_IN_MOVIE);
1759 avio_wb64(pb, track->time);
1760 avio_wb64(pb, track->time);
1762 avio_wb32(pb, track->time); /* creation time */
1763 avio_wb32(pb, track->time); /* modification time */
1765 avio_wb32(pb, track->track_id); /* track-id */
1766 avio_wb32(pb, 0); /* reserved */
1768 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1770 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1772 avio_wb32(pb, 0); /* reserved */
1773 avio_wb32(pb, 0); /* reserved */
1774 avio_wb16(pb, 0); /* layer */
1775 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1776 /* Volume, only for audio */
1777 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1778 avio_wb16(pb, 0x0100);
1781 avio_wb16(pb, 0); /* reserved */
1783 /* Matrix structure */
1784 if (st && st->metadata) {
1785 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1786 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1788 if (rotation == 90) {
1789 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1790 } else if (rotation == 180) {
1791 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1792 } else if (rotation == 270) {
1793 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1795 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1797 /* Track width and height, for visual only */
1798 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1799 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1800 if (track->mode == MODE_MOV) {
1801 avio_wb32(pb, track->enc->width << 16);
1802 avio_wb32(pb, track->height << 16);
1804 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1805 if (!sample_aspect_ratio || track->height != track->enc->height)
1806 sample_aspect_ratio = 1;
1807 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1808 avio_wb32(pb, track->height * 0x10000);
1817 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1819 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1820 track->enc->sample_aspect_ratio.den);
1822 int64_t pos = avio_tell(pb);
1824 avio_wb32(pb, 0); /* size */
1825 ffio_wfourcc(pb, "tapt");
1828 ffio_wfourcc(pb, "clef");
1830 avio_wb32(pb, width << 16);
1831 avio_wb32(pb, track->enc->height << 16);
1834 ffio_wfourcc(pb, "prof");
1836 avio_wb32(pb, width << 16);
1837 avio_wb32(pb, track->enc->height << 16);
1840 ffio_wfourcc(pb, "enof");
1842 avio_wb32(pb, track->enc->width << 16);
1843 avio_wb32(pb, track->enc->height << 16);
1845 return update_size(pb, pos);
1848 // This box seems important for the psp playback ... without it the movie seems to hang
1849 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1851 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1852 track->timescale, AV_ROUND_UP);
1853 int version = duration < INT32_MAX ? 0 : 1;
1854 int entry_size, entry_count, size;
1855 int64_t delay, start_ct = track->cluster[0].cts;
1856 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1857 track->timescale, AV_ROUND_DOWN);
1858 version |= delay < INT32_MAX ? 0 : 1;
1860 entry_size = (version == 1) ? 20 : 12;
1861 entry_count = 1 + (delay > 0);
1862 size = 24 + entry_count * entry_size;
1864 /* write the atom data */
1865 avio_wb32(pb, size);
1866 ffio_wfourcc(pb, "edts");
1867 avio_wb32(pb, size - 8);
1868 ffio_wfourcc(pb, "elst");
1869 avio_w8(pb, version);
1870 avio_wb24(pb, 0); /* flags */
1872 avio_wb32(pb, entry_count);
1873 if (delay > 0) { /* add an empty edit to delay presentation */
1875 avio_wb64(pb, delay);
1878 avio_wb32(pb, delay);
1881 avio_wb32(pb, 0x00010000);
1883 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1884 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1890 avio_wb64(pb, duration);
1891 avio_wb64(pb, start_ct);
1893 avio_wb32(pb, duration);
1894 avio_wb32(pb, start_ct);
1896 avio_wb32(pb, 0x00010000);
1900 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1902 avio_wb32(pb, 20); // size
1903 ffio_wfourcc(pb, "tref");
1904 avio_wb32(pb, 12); // size (subatom)
1905 avio_wl32(pb, track->tref_tag);
1906 avio_wb32(pb, track->tref_id);
1910 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1911 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1913 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1914 ffio_wfourcc(pb, "uuid");
1915 ffio_wfourcc(pb, "USMT");
1916 avio_wb32(pb, 0x21d24fce);
1917 avio_wb32(pb, 0xbb88695c);
1918 avio_wb32(pb, 0xfac9c740);
1919 avio_wb32(pb, 0x1c); // another size here!
1920 ffio_wfourcc(pb, "MTDT");
1921 avio_wb32(pb, 0x00010012);
1922 avio_wb32(pb, 0x0a);
1923 avio_wb32(pb, 0x55c40000);
1929 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1931 AVFormatContext *ctx = track->rtp_ctx;
1932 char buf[1000] = "";
1935 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1936 NULL, NULL, 0, 0, ctx);
1937 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1940 avio_wb32(pb, len + 24);
1941 ffio_wfourcc(pb, "udta");
1942 avio_wb32(pb, len + 16);
1943 ffio_wfourcc(pb, "hnti");
1944 avio_wb32(pb, len + 8);
1945 ffio_wfourcc(pb, "sdp ");
1946 avio_write(pb, buf, len);
1950 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1951 MOVTrack *track, AVStream *st)
1953 int64_t pos = avio_tell(pb);
1954 avio_wb32(pb, 0); /* size */
1955 ffio_wfourcc(pb, "trak");
1956 mov_write_tkhd_tag(pb, track, st);
1957 if (supports_edts(mov))
1958 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1959 if (track->tref_tag)
1960 mov_write_tref_tag(pb, track);
1961 mov_write_mdia_tag(pb, track);
1962 if (track->mode == MODE_PSP)
1963 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1964 if (track->tag == MKTAG('r','t','p',' '))
1965 mov_write_udta_sdp(pb, track);
1966 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1967 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1968 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
1969 mov_write_tapt_tag(pb, track);
1971 return update_size(pb, pos);
1974 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1976 int i, has_audio = 0, has_video = 0;
1977 int64_t pos = avio_tell(pb);
1978 int audio_profile = mov->iods_audio_profile;
1979 int video_profile = mov->iods_video_profile;
1980 for (i = 0; i < mov->nb_streams; i++) {
1981 if (mov->tracks[i].entry > 0) {
1982 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1983 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1986 if (audio_profile < 0)
1987 audio_profile = 0xFF - has_audio;
1988 if (video_profile < 0)
1989 video_profile = 0xFF - has_video;
1990 avio_wb32(pb, 0x0); /* size */
1991 ffio_wfourcc(pb, "iods");
1992 avio_wb32(pb, 0); /* version & flags */
1993 put_descr(pb, 0x10, 7);
1994 avio_wb16(pb, 0x004f);
1997 avio_w8(pb, audio_profile);
1998 avio_w8(pb, video_profile);
2000 return update_size(pb, pos);
2003 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2005 avio_wb32(pb, 0x20); /* size */
2006 ffio_wfourcc(pb, "trex");
2007 avio_wb32(pb, 0); /* version & flags */
2008 avio_wb32(pb, track->track_id); /* track ID */
2009 avio_wb32(pb, 1); /* default sample description index */
2010 avio_wb32(pb, 0); /* default sample duration */
2011 avio_wb32(pb, 0); /* default sample size */
2012 avio_wb32(pb, 0); /* default sample flags */
2016 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2018 int64_t pos = avio_tell(pb);
2020 avio_wb32(pb, 0x0); /* size */
2021 ffio_wfourcc(pb, "mvex");
2022 for (i = 0; i < mov->nb_streams; i++)
2023 mov_write_trex_tag(pb, &mov->tracks[i]);
2024 return update_size(pb, pos);
2027 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2029 int max_track_id = 1, i;
2030 int64_t max_track_len_temp, max_track_len = 0;
2033 for (i = 0; i < mov->nb_streams; i++) {
2034 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2035 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2037 mov->tracks[i].timescale,
2039 if (max_track_len < max_track_len_temp)
2040 max_track_len = max_track_len_temp;
2041 if (max_track_id < mov->tracks[i].track_id)
2042 max_track_id = mov->tracks[i].track_id;
2046 version = max_track_len < UINT32_MAX ? 0 : 1;
2047 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2048 ffio_wfourcc(pb, "mvhd");
2049 avio_w8(pb, version);
2050 avio_wb24(pb, 0); /* flags */
2052 avio_wb64(pb, mov->time);
2053 avio_wb64(pb, mov->time);
2055 avio_wb32(pb, mov->time); /* creation time */
2056 avio_wb32(pb, mov->time); /* modification time */
2058 avio_wb32(pb, MOV_TIMESCALE);
2059 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2061 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2062 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2063 avio_wb16(pb, 0); /* reserved */
2064 avio_wb32(pb, 0); /* reserved */
2065 avio_wb32(pb, 0); /* reserved */
2067 /* Matrix structure */
2068 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2070 avio_wb32(pb, 0); /* reserved (preview time) */
2071 avio_wb32(pb, 0); /* reserved (preview duration) */
2072 avio_wb32(pb, 0); /* reserved (poster time) */
2073 avio_wb32(pb, 0); /* reserved (selection time) */
2074 avio_wb32(pb, 0); /* reserved (selection duration) */
2075 avio_wb32(pb, 0); /* reserved (current time) */
2076 avio_wb32(pb, max_track_id + 1); /* Next track id */
2080 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2083 avio_wb32(pb, 33); /* size */
2084 ffio_wfourcc(pb, "hdlr");
2087 ffio_wfourcc(pb, "mdir");
2088 ffio_wfourcc(pb, "appl");
2095 /* helper function to write a data tag with the specified string as data */
2096 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2099 int size = 16 + strlen(data);
2100 avio_wb32(pb, size); /* size */
2101 ffio_wfourcc(pb, "data");
2104 avio_write(pb, data, strlen(data));
2108 lang = ff_mov_iso639_to_lang("und", 1);
2109 avio_wb16(pb, strlen(data)); /* string length */
2110 avio_wb16(pb, lang);
2111 avio_write(pb, data, strlen(data));
2112 return strlen(data) + 4;
2116 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2117 const char *value, int lang, int long_style)
2120 if (value && value[0]) {
2121 int64_t pos = avio_tell(pb);
2122 avio_wb32(pb, 0); /* size */
2123 ffio_wfourcc(pb, name);
2124 mov_write_string_data_tag(pb, value, lang, long_style);
2125 size = update_size(pb, pos);
2130 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2131 const char *name, const char *tag,
2134 int l, lang = 0, len, len2;
2135 AVDictionaryEntry *t, *t2 = NULL;
2138 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2141 len = strlen(t->key);
2142 snprintf(tag2, sizeof(tag2), "%s-", tag);
2143 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2144 len2 = strlen(t2->key);
2145 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2146 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2151 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2154 /* iTunes bpm number */
2155 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2157 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2158 int size = 0, tmpo = t ? atoi(t->value) : 0;
2161 avio_wb32(pb, size);
2162 ffio_wfourcc(pb, "tmpo");
2163 avio_wb32(pb, size-8); /* size */
2164 ffio_wfourcc(pb, "data");
2165 avio_wb32(pb, 0x15); //type specifier
2167 avio_wb16(pb, tmpo); // data
2172 /* iTunes track or disc number */
2173 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2174 AVFormatContext *s, int disc)
2176 AVDictionaryEntry *t = av_dict_get(s->metadata,
2177 disc ? "disc" : "track",
2179 int size = 0, track = t ? atoi(t->value) : 0;
2182 char *slash = strchr(t->value, '/');
2184 tracks = atoi(slash + 1);
2185 avio_wb32(pb, 32); /* size */
2186 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2187 avio_wb32(pb, 24); /* size */
2188 ffio_wfourcc(pb, "data");
2189 avio_wb32(pb, 0); // 8 bytes empty
2191 avio_wb16(pb, 0); // empty
2192 avio_wb16(pb, track); // track / disc number
2193 avio_wb16(pb, tracks); // total track / disc number
2194 avio_wb16(pb, 0); // empty
2200 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2201 const char *name, const char *tag,
2204 AVDictionaryEntry *t = NULL;
2206 int size = 24 + len;
2208 if (len != 1 && len != 4)
2211 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2213 num = atoi(t->value);
2215 avio_wb32(pb, size);
2216 ffio_wfourcc(pb, name);
2217 avio_wb32(pb, size - 8);
2218 ffio_wfourcc(pb, "data");
2219 avio_wb32(pb, 0x15);
2221 if (len==4) avio_wb32(pb, num);
2222 else avio_w8 (pb, num);
2227 /* iTunes meta data list */
2228 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2231 int64_t pos = avio_tell(pb);
2232 avio_wb32(pb, 0); /* size */
2233 ffio_wfourcc(pb, "ilst");
2234 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2235 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2236 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2237 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2238 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2239 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2241 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2242 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2243 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2244 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2245 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2246 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2247 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2248 mov_write_string_metadata(s, pb, "desc", "description",1);
2249 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2250 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2251 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2252 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2253 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2254 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2255 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2256 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2257 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2258 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2259 mov_write_trkn_tag(pb, mov, s, 0); // track number
2260 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2261 mov_write_tmpo_tag(pb, s);
2262 return update_size(pb, pos);
2265 /* iTunes meta data tag */
2266 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2270 int64_t pos = avio_tell(pb);
2271 avio_wb32(pb, 0); /* size */
2272 ffio_wfourcc(pb, "meta");
2274 mov_write_itunes_hdlr_tag(pb, mov, s);
2275 mov_write_ilst_tag(pb, mov, s);
2276 size = update_size(pb, pos);
2280 static int utf8len(const uint8_t *b)
2285 GET_UTF8(val, *b++, return -1;)
2291 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2295 GET_UTF8(val, *b++, return -1;)
2298 avio_wb16(pb, 0x00);
2302 static uint16_t language_code(const char *str)
2304 return (((str[0] - 0x60) & 0x1F) << 10) +
2305 (((str[1] - 0x60) & 0x1F) << 5) +
2306 (( str[2] - 0x60) & 0x1F);
2309 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2310 const char *tag, const char *str)
2312 int64_t pos = avio_tell(pb);
2313 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2314 if (!t || !utf8len(t->value))
2316 avio_wb32(pb, 0); /* size */
2317 ffio_wfourcc(pb, tag); /* type */
2318 avio_wb32(pb, 0); /* version + flags */
2319 if (!strcmp(tag, "yrrc"))
2320 avio_wb16(pb, atoi(t->value));
2322 avio_wb16(pb, language_code("eng")); /* language */
2323 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2324 if (!strcmp(tag, "albm") &&
2325 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2326 avio_w8(pb, atoi(t->value));
2328 return update_size(pb, pos);
2331 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2333 int64_t pos = avio_tell(pb);
2334 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2336 avio_wb32(pb, 0); // size
2337 ffio_wfourcc(pb, "chpl");
2338 avio_wb32(pb, 0x01000000); // version + flags
2339 avio_wb32(pb, 0); // unknown
2340 avio_w8(pb, nb_chapters);
2342 for (i = 0; i < nb_chapters; i++) {
2343 AVChapter *c = s->chapters[i];
2344 AVDictionaryEntry *t;
2345 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2347 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2348 int len = FFMIN(strlen(t->value), 255);
2350 avio_write(pb, t->value, len);
2354 return update_size(pb, pos);
2357 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2360 AVIOContext *pb_buf;
2364 ret = avio_open_dyn_buf(&pb_buf);
2368 if (mov->mode & MODE_3GP) {
2369 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2370 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2371 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2372 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2373 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2374 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2375 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2376 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2377 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2378 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2379 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2380 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2381 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2382 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2383 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2384 // currently ignored by mov.c
2385 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2386 // add support for libquicktime, this atom is also actually read by mov.c
2387 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2388 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2389 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2391 /* iTunes meta data */
2392 mov_write_meta_tag(pb_buf, mov, s);
2396 mov_write_chpl_tag(pb_buf, s);
2398 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2399 avio_wb32(pb, size + 8);
2400 ffio_wfourcc(pb, "udta");
2401 avio_write(pb, buf, size);
2408 static void mov_write_psp_udta_tag(AVIOContext *pb,
2409 const char *str, const char *lang, int type)
2411 int len = utf8len(str) + 1;
2414 avio_wb16(pb, len * 2 + 10); /* size */
2415 avio_wb32(pb, type); /* type */
2416 avio_wb16(pb, language_code(lang)); /* language */
2417 avio_wb16(pb, 0x01); /* ? */
2418 ascii_to_wc(pb, str);
2421 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2423 MOVMuxContext *mov = s->priv_data;
2424 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2428 pos = avio_tell(pb);
2429 avio_wb32(pb, 0); /* size placeholder*/
2430 ffio_wfourcc(pb, "uuid");
2431 ffio_wfourcc(pb, "USMT");
2432 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2433 avio_wb32(pb, 0xbb88695c);
2434 avio_wb32(pb, 0xfac9c740);
2436 pos2 = avio_tell(pb);
2437 avio_wb32(pb, 0); /* size placeholder*/
2438 ffio_wfourcc(pb, "MTDT");
2442 avio_wb16(pb, 0x0C); /* size */
2443 avio_wb32(pb, 0x0B); /* type */
2444 avio_wb16(pb, language_code("und")); /* language */
2445 avio_wb16(pb, 0x0); /* ? */
2446 avio_wb16(pb, 0x021C); /* data */
2449 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2450 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2451 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2453 update_size(pb, pos2);
2454 return update_size(pb, pos);
2460 static void build_chunks(MOVTrack *trk)
2463 MOVIentry *chunk = &trk->cluster[0];
2464 uint64_t chunkSize = chunk->size;
2465 chunk->chunkNum = 1;
2466 if (trk->chunkCount)
2468 trk->chunkCount = 1;
2469 for (i = 1; i<trk->entry; i++){
2470 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2471 chunkSize + trk->cluster[i].size < (1<<20)){
2472 chunkSize += trk->cluster[i].size;
2473 chunk->samples_in_chunk += trk->cluster[i].entries;
2475 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2476 chunk=&trk->cluster[i];
2477 chunkSize = chunk->size;
2483 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2487 int64_t pos = avio_tell(pb);
2488 avio_wb32(pb, 0); /* size placeholder*/
2489 ffio_wfourcc(pb, "moov");
2491 for (i = 0; i < mov->nb_streams; i++) {
2492 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2495 mov->tracks[i].time = mov->time;
2496 mov->tracks[i].track_id = i + 1;
2498 if (mov->tracks[i].entry)
2499 build_chunks(&mov->tracks[i]);
2502 if (mov->chapter_track)
2503 for (i = 0; i < s->nb_streams; i++) {
2504 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2505 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2507 for (i = 0; i < mov->nb_streams; i++) {
2508 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2509 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2510 mov->tracks[i].tref_id =
2511 mov->tracks[mov->tracks[i].src_track].track_id;
2514 for (i = 0; i < mov->nb_streams; i++) {
2515 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2516 int src_trk = mov->tracks[i].src_track;
2517 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2518 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2519 //src_trk may have a different timescale than the tmcd track
2520 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2521 mov->tracks[i].timescale,
2522 mov->tracks[src_trk].timescale);
2526 mov_write_mvhd_tag(pb, mov);
2527 if (mov->mode != MODE_MOV && !mov->iods_skip)
2528 mov_write_iods_tag(pb, mov);
2529 for (i = 0; i < mov->nb_streams; i++) {
2530 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2531 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2534 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2535 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2537 if (mov->mode == MODE_PSP)
2538 mov_write_uuidusmt_tag(pb, s);
2540 mov_write_udta_tag(pb, mov, s);
2542 return update_size(pb, pos);
2545 static void param_write_int(AVIOContext *pb, const char *name, int value)
2547 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2550 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2552 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2555 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2558 len = FFMIN(sizeof(buf) / 2 - 1, len);
2559 ff_data_to_hex(buf, value, len, 0);
2560 buf[2 * len] = '\0';
2561 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2564 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2566 int64_t pos = avio_tell(pb);
2568 static const uint8_t uuid[] = {
2569 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2570 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2574 ffio_wfourcc(pb, "uuid");
2575 avio_write(pb, uuid, sizeof(uuid));
2578 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2579 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2580 avio_printf(pb, "<head>\n");
2582 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2584 avio_printf(pb, "</head>\n");
2585 avio_printf(pb, "<body>\n");
2586 avio_printf(pb, "<switch>\n");
2587 for (i = 0; i < mov->nb_streams; i++) {
2588 MOVTrack *track = &mov->tracks[i];
2590 /* track->track_id is initialized in write_moov, and thus isn't known
2592 int track_id = i + 1;
2594 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2596 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2601 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2602 track->enc->bit_rate);
2603 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2604 param_write_int(pb, "trackID", track_id);
2605 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2606 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2608 int size = track->enc->extradata_size;
2609 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2611 param_write_hex(pb, "CodecPrivateData",
2612 ptr ? ptr : track->enc->extradata,
2616 param_write_string(pb, "FourCC", "H264");
2617 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2618 param_write_string(pb, "FourCC", "WVC1");
2619 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2620 track->enc->extradata_size);
2622 param_write_int(pb, "MaxWidth", track->enc->width);
2623 param_write_int(pb, "MaxHeight", track->enc->height);
2624 param_write_int(pb, "DisplayWidth", track->enc->width);
2625 param_write_int(pb, "DisplayHeight", track->enc->height);
2627 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2628 param_write_string(pb, "FourCC", "AACL");
2629 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2630 param_write_string(pb, "FourCC", "WMAP");
2632 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2633 track->enc->extradata_size);
2634 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2635 track->enc->codec_id));
2636 param_write_int(pb, "Channels", track->enc->channels);
2637 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2638 param_write_int(pb, "BitsPerSample", 16);
2639 param_write_int(pb, "PacketSize", track->enc->block_align ?
2640 track->enc->block_align : 4);
2642 avio_printf(pb, "</%s>\n", type);
2644 avio_printf(pb, "</switch>\n");
2645 avio_printf(pb, "</body>\n");
2646 avio_printf(pb, "</smil>\n");
2648 return update_size(pb, pos);
2651 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2654 ffio_wfourcc(pb, "mfhd");
2656 avio_wb32(pb, mov->fragments);
2660 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2661 MOVTrack *track, int64_t moof_offset)
2663 int64_t pos = avio_tell(pb);
2664 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2665 MOV_TFHD_BASE_DATA_OFFSET;
2666 if (!track->entry) {
2667 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2669 flags |= MOV_TFHD_DEFAULT_FLAGS;
2671 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2672 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2674 /* Don't set a default sample size, the silverlight player refuses
2675 * to play files with that set. Don't set a default sample duration,
2676 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2677 * file format says it MUST NOT be set. */
2678 if (track->mode == MODE_ISM)
2679 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2680 MOV_TFHD_BASE_DATA_OFFSET);
2682 avio_wb32(pb, 0); /* size placeholder */
2683 ffio_wfourcc(pb, "tfhd");
2684 avio_w8(pb, 0); /* version */
2685 avio_wb24(pb, flags);
2687 avio_wb32(pb, track->track_id); /* track-id */
2688 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2689 avio_wb64(pb, moof_offset);
2690 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2691 track->default_duration = get_cluster_duration(track, 0);
2692 avio_wb32(pb, track->default_duration);
2694 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2695 track->default_size = track->entry ? track->cluster[0].size : 1;
2696 avio_wb32(pb, track->default_size);
2698 track->default_size = -1;
2700 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2701 track->default_sample_flags =
2702 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2703 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2704 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2705 avio_wb32(pb, track->default_sample_flags);
2708 return update_size(pb, pos);
2711 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2713 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2714 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2717 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2718 MOVTrack *track, int moof_size)
2720 int64_t pos = avio_tell(pb);
2721 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2724 for (i = 0; i < track->entry; i++) {
2725 if (get_cluster_duration(track, i) != track->default_duration)
2726 flags |= MOV_TRUN_SAMPLE_DURATION;
2727 if (track->cluster[i].size != track->default_size)
2728 flags |= MOV_TRUN_SAMPLE_SIZE;
2729 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2730 flags |= MOV_TRUN_SAMPLE_FLAGS;
2732 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2733 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2734 if (track->flags & MOV_TRACK_CTTS)
2735 flags |= MOV_TRUN_SAMPLE_CTS;
2737 avio_wb32(pb, 0); /* size placeholder */
2738 ffio_wfourcc(pb, "trun");
2739 avio_w8(pb, 0); /* version */
2740 avio_wb24(pb, flags);
2742 avio_wb32(pb, track->entry); /* sample count */
2743 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2744 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2745 track->track_id != 1)
2746 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2748 avio_wb32(pb, moof_size + 8 + track->data_offset +
2749 track->cluster[0].pos); /* data offset */
2750 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2751 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2753 for (i = 0; i < track->entry; i++) {
2754 if (flags & MOV_TRUN_SAMPLE_DURATION)
2755 avio_wb32(pb, get_cluster_duration(track, i));
2756 if (flags & MOV_TRUN_SAMPLE_SIZE)
2757 avio_wb32(pb, track->cluster[i].size);
2758 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2759 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2760 if (flags & MOV_TRUN_SAMPLE_CTS)
2761 avio_wb32(pb, track->cluster[i].cts);
2764 return update_size(pb, pos);
2767 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2769 int64_t pos = avio_tell(pb);
2770 static const uint8_t uuid[] = {
2771 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2772 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2775 avio_wb32(pb, 0); /* size placeholder */
2776 ffio_wfourcc(pb, "uuid");
2777 avio_write(pb, uuid, sizeof(uuid));
2780 avio_wb64(pb, track->frag_start);
2781 avio_wb64(pb, track->start_dts + track->track_duration -
2782 track->cluster[0].dts);
2784 return update_size(pb, pos);
2787 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2788 MOVTrack *track, int entry)
2790 int n = track->nb_frag_info - 1 - entry, i;
2791 int size = 8 + 16 + 4 + 1 + 16*n;
2792 static const uint8_t uuid[] = {
2793 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2794 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2800 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2801 avio_wb32(pb, size);
2802 ffio_wfourcc(pb, "uuid");
2803 avio_write(pb, uuid, sizeof(uuid));
2807 for (i = 0; i < n; i++) {
2808 int index = entry + 1 + i;
2809 avio_wb64(pb, track->frag_info[index].time);
2810 avio_wb64(pb, track->frag_info[index].duration);
2812 if (n < mov->ism_lookahead) {
2813 int free_size = 16 * (mov->ism_lookahead - n);
2814 avio_wb32(pb, free_size);
2815 ffio_wfourcc(pb, "free");
2816 ffio_fill(pb, 0, free_size - 8);
2822 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2825 int64_t pos = avio_tell(pb);
2827 for (i = 0; i < mov->ism_lookahead; i++) {
2828 /* Update the tfrf tag for the last ism_lookahead fragments,
2829 * nb_frag_info - 1 is the next fragment to be written. */
2830 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2832 avio_seek(pb, pos, SEEK_SET);
2836 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2837 MOVTrack *track, int64_t moof_offset,
2840 int64_t pos = avio_tell(pb);
2841 avio_wb32(pb, 0); /* size placeholder */
2842 ffio_wfourcc(pb, "traf");
2844 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2845 mov_write_trun_tag(pb, mov, track, moof_size);
2846 if (mov->mode == MODE_ISM) {
2847 mov_write_tfxd_tag(pb, track);
2849 if (mov->ism_lookahead) {
2850 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2852 track->tfrf_offset = avio_tell(pb);
2853 avio_wb32(pb, 8 + size);
2854 ffio_wfourcc(pb, "free");
2855 for (i = 0; i < size; i++)
2860 return update_size(pb, pos);
2863 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2864 int tracks, int moof_size)
2866 int64_t pos = avio_tell(pb);
2869 avio_wb32(pb, 0); /* size placeholder */
2870 ffio_wfourcc(pb, "moof");
2872 mov_write_mfhd_tag(pb, mov);
2873 for (i = 0; i < mov->nb_streams; i++) {
2874 MOVTrack *track = &mov->tracks[i];
2875 if (tracks >= 0 && i != tracks)
2879 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2882 return update_size(pb, pos);
2885 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2887 AVIOContext *avio_buf;
2890 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2892 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2893 moof_size = ffio_close_null_buf(avio_buf);
2894 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2897 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2899 int64_t pos = avio_tell(pb);
2902 avio_wb32(pb, 0); /* size placeholder */
2903 ffio_wfourcc(pb, "tfra");
2904 avio_w8(pb, 1); /* version */
2907 avio_wb32(pb, track->track_id);
2908 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2909 avio_wb32(pb, track->nb_frag_info);
2910 for (i = 0; i < track->nb_frag_info; i++) {
2911 avio_wb64(pb, track->frag_info[i].time);
2912 avio_wb64(pb, track->frag_info[i].offset);
2913 avio_w8(pb, 1); /* traf number */
2914 avio_w8(pb, 1); /* trun number */
2915 avio_w8(pb, 1); /* sample number */
2918 return update_size(pb, pos);
2921 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2923 int64_t pos = avio_tell(pb);
2926 avio_wb32(pb, 0); /* size placeholder */
2927 ffio_wfourcc(pb, "mfra");
2928 /* An empty mfra atom is enough to indicate to the publishing point that
2929 * the stream has ended. */
2930 if (mov->flags & FF_MOV_FLAG_ISML)
2931 return update_size(pb, pos);
2933 for (i = 0; i < mov->nb_streams; i++) {
2934 MOVTrack *track = &mov->tracks[i];
2935 if (track->nb_frag_info)
2936 mov_write_tfra_tag(pb, track);
2940 ffio_wfourcc(pb, "mfro");
2941 avio_wb32(pb, 0); /* version + flags */
2942 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2944 return update_size(pb, pos);
2947 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2949 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2950 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2952 mov->mdat_pos = avio_tell(pb);
2953 avio_wb32(pb, 0); /* size placeholder*/
2954 ffio_wfourcc(pb, "mdat");
2958 /* TODO: This needs to be more general */
2959 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2961 MOVMuxContext *mov = s->priv_data;
2962 int64_t pos = avio_tell(pb);
2963 int has_h264 = 0, has_video = 0;
2967 for (i = 0; i < s->nb_streams; i++) {
2968 AVStream *st = s->streams[i];
2969 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2971 if (st->codec->codec_id == AV_CODEC_ID_H264)
2975 avio_wb32(pb, 0); /* size */
2976 ffio_wfourcc(pb, "ftyp");
2978 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2979 ffio_wfourcc(pb, mov->major_brand);
2980 else if (mov->mode == MODE_3GP) {
2981 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2982 minor = has_h264 ? 0x100 : 0x200;
2983 } else if (mov->mode & MODE_3G2) {
2984 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2985 minor = has_h264 ? 0x20000 : 0x10000;
2986 } else if (mov->mode == MODE_PSP)
2987 ffio_wfourcc(pb, "MSNV");
2988 else if (mov->mode == MODE_MP4)
2989 ffio_wfourcc(pb, "isom");
2990 else if (mov->mode == MODE_IPOD)
2991 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2992 else if (mov->mode == MODE_ISM)
2993 ffio_wfourcc(pb, "isml");
2994 else if (mov->mode == MODE_F4V)
2995 ffio_wfourcc(pb, "f4v ");
2997 ffio_wfourcc(pb, "qt ");
2999 avio_wb32(pb, minor);
3001 if (mov->mode == MODE_MOV)
3002 ffio_wfourcc(pb, "qt ");
3003 else if (mov->mode == MODE_ISM) {
3004 ffio_wfourcc(pb, "piff");
3005 ffio_wfourcc(pb, "iso2");
3007 ffio_wfourcc(pb, "isom");
3008 ffio_wfourcc(pb, "iso2");
3010 ffio_wfourcc(pb, "avc1");
3013 if (mov->mode == MODE_3GP)
3014 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3015 else if (mov->mode & MODE_3G2)
3016 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3017 else if (mov->mode == MODE_PSP)
3018 ffio_wfourcc(pb, "MSNV");
3019 else if (mov->mode == MODE_MP4)
3020 ffio_wfourcc(pb, "mp41");
3021 return update_size(pb, pos);
3024 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3026 AVCodecContext *video_codec = s->streams[0]->codec;
3027 AVCodecContext *audio_codec = s->streams[1]->codec;
3028 int audio_rate = audio_codec->sample_rate;
3029 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
3030 int audio_kbitrate = audio_codec->bit_rate / 1000;
3031 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3033 avio_wb32(pb, 0x94); /* size */
3034 ffio_wfourcc(pb, "uuid");
3035 ffio_wfourcc(pb, "PROF");
3037 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3038 avio_wb32(pb, 0xbb88695c);
3039 avio_wb32(pb, 0xfac9c740);
3041 avio_wb32(pb, 0x0); /* ? */
3042 avio_wb32(pb, 0x3); /* 3 sections ? */
3044 avio_wb32(pb, 0x14); /* size */
3045 ffio_wfourcc(pb, "FPRF");
3046 avio_wb32(pb, 0x0); /* ? */
3047 avio_wb32(pb, 0x0); /* ? */
3048 avio_wb32(pb, 0x0); /* ? */
3050 avio_wb32(pb, 0x2c); /* size */
3051 ffio_wfourcc(pb, "APRF"); /* audio */
3053 avio_wb32(pb, 0x2); /* TrackID */
3054 ffio_wfourcc(pb, "mp4a");
3055 avio_wb32(pb, 0x20f);
3057 avio_wb32(pb, audio_kbitrate);
3058 avio_wb32(pb, audio_kbitrate);
3059 avio_wb32(pb, audio_rate);
3060 avio_wb32(pb, audio_codec->channels);
3062 avio_wb32(pb, 0x34); /* size */
3063 ffio_wfourcc(pb, "VPRF"); /* video */
3065 avio_wb32(pb, 0x1); /* TrackID */
3066 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3067 ffio_wfourcc(pb, "avc1");
3068 avio_wb16(pb, 0x014D);
3069 avio_wb16(pb, 0x0015);
3071 ffio_wfourcc(pb, "mp4v");
3072 avio_wb16(pb, 0x0000);
3073 avio_wb16(pb, 0x0103);
3076 avio_wb32(pb, video_kbitrate);
3077 avio_wb32(pb, video_kbitrate);
3078 avio_wb32(pb, frame_rate);
3079 avio_wb32(pb, frame_rate);
3080 avio_wb16(pb, video_codec->width);
3081 avio_wb16(pb, video_codec->height);
3082 avio_wb32(pb, 0x010001); /* ? */
3085 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3088 int i, closed_gop = 0;
3090 for (i = 0; i < pkt->size - 4; i++) {
3091 c = (c << 8) + pkt->data[i];
3092 if (c == 0x1b8) { // gop
3093 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3094 } else if (c == 0x100) { // pic
3095 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3096 if (!temp_ref || closed_gop) // I picture is not reordered
3097 *flags = MOV_SYNC_SAMPLE;
3099 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3106 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3108 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3109 int seq = 0, entry = 0;
3110 int key = pkt->flags & AV_PKT_FLAG_KEY;
3111 start = find_next_marker(pkt->data, end);
3112 for (next = start; next < end; start = next) {
3113 next = find_next_marker(start + 4, end);
3114 switch (AV_RB32(start)) {
3115 case VC1_CODE_SEQHDR:
3118 case VC1_CODE_ENTRYPOINT:
3121 case VC1_CODE_SLICE:
3122 trk->vc1_info.slices = 1;
3126 if (!trk->entry && !fragment) {
3127 /* First packet in first fragment */
3128 trk->vc1_info.first_packet_seq = seq;
3129 trk->vc1_info.first_packet_entry = entry;
3130 } else if ((seq && !trk->vc1_info.packet_seq) ||
3131 (entry && !trk->vc1_info.packet_entry)) {
3133 for (i = 0; i < trk->entry; i++)
3134 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3135 trk->has_keyframes = 0;
3137 trk->vc1_info.packet_seq = 1;
3139 trk->vc1_info.packet_entry = 1;
3141 /* First fragment */
3142 if ((!seq || trk->vc1_info.first_packet_seq) &&
3143 (!entry || trk->vc1_info.first_packet_entry)) {
3144 /* First packet had the same headers as this one, readd the
3145 * sync sample flag. */
3146 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3147 trk->has_keyframes = 1;
3151 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3153 else if (trk->vc1_info.packet_seq)
3155 else if (trk->vc1_info.packet_entry)
3158 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3159 trk->has_keyframes++;
3163 static int mov_flush_fragment(AVFormatContext *s)
3165 MOVMuxContext *mov = s->priv_data;
3166 int i, first_track = -1;
3167 int64_t mdat_size = 0;
3169 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3172 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3173 int64_t pos = avio_tell(s->pb);
3175 int buf_size, moov_size;
3177 for (i = 0; i < mov->nb_streams; i++)
3178 if (!mov->tracks[i].entry)
3180 /* Don't write the initial moov unless all tracks have data */
3181 if (i < mov->nb_streams)
3184 moov_size = get_moov_size(s);
3185 for (i = 0; i < mov->nb_streams; i++)
3186 mov->tracks[i].data_offset = pos + moov_size + 8;
3188 mov_write_moov_tag(s->pb, mov, s);
3190 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3191 mov->mdat_buf = NULL;
3192 avio_wb32(s->pb, buf_size + 8);
3193 ffio_wfourcc(s->pb, "mdat");
3194 avio_write(s->pb, buf, buf_size);
3199 for (i = 0; i < mov->nb_streams; i++) {
3200 if (mov->tracks[i].entry)
3201 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3202 mov->tracks[i].track_duration -
3203 mov->tracks[i].cluster[0].dts;
3204 mov->tracks[i].entry = 0;
3210 for (i = 0; i < mov->nb_streams; i++) {
3211 MOVTrack *track = &mov->tracks[i];
3212 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3213 track->data_offset = 0;
3215 track->data_offset = mdat_size;
3216 if (!track->mdat_buf)
3218 mdat_size += avio_tell(track->mdat_buf);
3219 if (first_track < 0)
3226 for (i = 0; i < mov->nb_streams; i++) {
3227 MOVTrack *track = &mov->tracks[i];
3228 int buf_size, write_moof = 1, moof_tracks = -1;
3230 int64_t duration = 0;
3233 duration = track->start_dts + track->track_duration -
3234 track->cluster[0].dts;
3235 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3236 if (!track->mdat_buf)
3238 mdat_size = avio_tell(track->mdat_buf);
3241 write_moof = i == first_track;
3245 MOVFragmentInfo *info;
3247 track->nb_frag_info++;
3248 if (track->nb_frag_info >= track->frag_info_capacity) {
3249 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3250 if (av_reallocp_array(&track->frag_info,
3252 sizeof(*track->frag_info)))
3253 return AVERROR(ENOMEM);
3254 track->frag_info_capacity = new_capacity;
3256 info = &track->frag_info[track->nb_frag_info - 1];
3257 info->offset = avio_tell(s->pb);
3258 info->time = mov->tracks[i].frag_start;
3259 info->duration = duration;
3260 mov_write_tfrf_tags(s->pb, mov, track);
3262 mov_write_moof_tag(s->pb, mov, moof_tracks);
3263 info->tfrf_offset = track->tfrf_offset;
3266 avio_wb32(s->pb, mdat_size + 8);
3267 ffio_wfourcc(s->pb, "mdat");
3271 track->frag_start += duration;
3273 if (!track->mdat_buf)
3275 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3276 track->mdat_buf = NULL;
3278 avio_write(s->pb, buf, buf_size);
3288 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3290 MOVMuxContext *mov = s->priv_data;
3291 AVIOContext *pb = s->pb;
3292 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3293 AVCodecContext *enc = trk->enc;
3294 unsigned int samples_in_chunk = 0;
3295 int size = pkt->size;
3296 uint8_t *reformatted_data = NULL;
3299 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3300 if (duration < 0 || duration > INT_MAX) {
3301 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3305 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3306 pkt->pts = AV_NOPTS_VALUE;
3309 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3311 if (mov->fragments > 0) {
3312 if (!trk->mdat_buf) {
3313 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3318 if (!mov->mdat_buf) {
3319 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3326 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3327 /* We must find out how many AMR blocks there are in one packet */
3328 static uint16_t packed_size[16] =
3329 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3332 while (len < size && samples_in_chunk < 100) {
3333 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3336 if (samples_in_chunk > 1) {
3337 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3340 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3341 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3342 samples_in_chunk = enc->frame_size;
3343 } else if (trk->sample_size)
3344 samples_in_chunk = size / trk->sample_size;
3346 samples_in_chunk = 1;
3348 /* copy extradata if it exists */
3349 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3350 trk->vos_len = enc->extradata_size;
3351 trk->vos_data = av_malloc(trk->vos_len);
3352 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3355 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3356 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3357 if (!s->streams[pkt->stream_index]->nb_frames) {
3358 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3359 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3360 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3363 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3365 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3366 /* from x264 or from bytestream h264 */
3367 /* nal reformating needed */
3368 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3369 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3371 avio_write(pb, reformatted_data, size);
3373 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3375 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3376 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3377 /* extradata is Annex B, assume the bitstream is too and convert it */
3378 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3379 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3380 avio_write(pb, reformatted_data, size);
3382 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3385 avio_write(pb, pkt->data, size);
3388 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3389 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3390 /* copy frame to create needed atoms */
3391 trk->vos_len = size;
3392 trk->vos_data = av_malloc(size);
3394 return AVERROR(ENOMEM);
3395 memcpy(trk->vos_data, pkt->data, size);
3398 if (trk->entry >= trk->cluster_capacity) {
3399 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3400 if (av_reallocp_array(&trk->cluster, new_capacity,
3401 sizeof(*trk->cluster)))
3402 return AVERROR(ENOMEM);
3403 trk->cluster_capacity = new_capacity;
3406 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3407 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3408 trk->cluster[trk->entry].chunkNum = 0;
3409 trk->cluster[trk->entry].size = size;
3410 trk->cluster[trk->entry].entries = samples_in_chunk;
3411 trk->cluster[trk->entry].dts = pkt->dts;
3412 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3413 /* First packet of a new fragment. We already wrote the duration
3414 * of the last packet of the previous fragment based on track_duration,
3415 * which might not exactly match our dts. Therefore adjust the dts
3416 * of this packet to be what the previous packets duration implies. */
3417 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3419 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3420 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3422 if (trk->start_dts == AV_NOPTS_VALUE)
3423 trk->start_dts = pkt->dts;
3424 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3425 trk->last_sample_is_subtitle_end = 0;
3427 if (pkt->pts == AV_NOPTS_VALUE) {
3428 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3429 pkt->pts = pkt->dts;
3431 if (pkt->dts != pkt->pts)
3432 trk->flags |= MOV_TRACK_CTTS;
3433 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3434 trk->cluster[trk->entry].flags = 0;
3435 if (enc->codec_id == AV_CODEC_ID_VC1) {
3436 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3437 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3438 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3439 trk->entry > 0) { // force sync sample for the first key frame
3440 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3441 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3442 trk->flags |= MOV_TRACK_STPS;
3444 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3446 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3447 trk->has_keyframes++;
3450 trk->sample_count += samples_in_chunk;
3451 mov->mdat_size += size;
3453 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3454 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3455 reformatted_data, size);
3456 av_free(reformatted_data);
3460 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3462 MOVMuxContext *mov = s->priv_data;
3463 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3464 AVCodecContext *enc = trk->enc;
3465 int64_t frag_duration = 0;
3466 int size = pkt->size;
3469 return 0; /* Discard 0 sized packets */
3471 if (trk->entry && pkt->stream_index < s->nb_streams)
3472 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3473 s->streams[pkt->stream_index]->time_base,
3475 if ((mov->max_fragment_duration &&
3476 frag_duration >= mov->max_fragment_duration) ||
3477 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3478 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3479 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3480 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3481 if (frag_duration >= mov->min_fragment_duration)
3482 mov_flush_fragment(s);
3485 return ff_mov_write_packet(s, pkt);
3488 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3492 uint8_t data[2] = {0};
3495 av_init_packet(&end);
3496 end.size = sizeof(data);
3501 end.stream_index = stream_index;
3503 ret = mov_write_single_packet(s, &end);
3504 av_free_packet(&end);
3509 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3512 mov_flush_fragment(s);
3516 MOVMuxContext *mov = s->priv_data;
3518 if (!pkt->size) return 0; /* Discard 0 sized packets */
3521 * Subtitles require special handling.
3523 * 1) For full complaince, every track must have a sample at
3524 * dts == 0, which is rarely true for subtitles. So, as soon
3525 * as we see any packet with dts > 0, write an empty subtitle
3526 * at dts == 0 for any subtitle track with no samples in it.
3528 * 2) For each subtitle track, check if the current packet's
3529 * dts is past the duration of the last subtitle sample. If
3530 * so, we now need to write an end sample for that subtitle.
3532 * This must be done conditionally to allow for subtitles that
3533 * immediately replace each other, in which case an end sample
3534 * is not needed, and is, in fact, actively harmful.
3536 * 3) See mov_write_trailer for how the final end sample is
3539 for (i = 0; i < mov->nb_streams; i++) {
3540 MOVTrack *trk = &mov->tracks[i];
3543 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3544 trk->track_duration < pkt->dts &&
3545 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3546 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3547 if (ret < 0) return ret;
3548 trk->last_sample_is_subtitle_end = 1;
3552 return mov_write_single_packet(s, pkt);
3556 // QuickTime chapters involve an additional text track with the chapter names
3557 // as samples, and a tref pointing from the other tracks to the chapter one.
3558 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3562 MOVMuxContext *mov = s->priv_data;
3563 MOVTrack *track = &mov->tracks[tracknum];
3564 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3567 track->mode = mov->mode;
3568 track->tag = MKTAG('t','e','x','t');
3569 track->timescale = MOV_TIMESCALE;
3570 track->enc = avcodec_alloc_context3(NULL);
3572 return AVERROR(ENOMEM);
3573 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3575 // These properties are required to make QT recognize the chapter track
3576 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3577 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3578 return AVERROR(ENOMEM);
3579 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3581 if (avio_open_dyn_buf(&pb) >= 0) {
3585 /* Stub header (usually for Quicktime chapter track) */
3587 avio_wb32(pb, 0x01); // displayFlags
3588 avio_w8(pb, 0x00); // horizontal justification
3589 avio_w8(pb, 0x00); // vertical justification
3590 avio_w8(pb, 0x00); // bgColourRed
3591 avio_w8(pb, 0x00); // bgColourGreen
3592 avio_w8(pb, 0x00); // bgColourBlue
3593 avio_w8(pb, 0x00); // bgColourAlpha
3595 avio_wb16(pb, 0x00); // defTextBoxTop
3596 avio_wb16(pb, 0x00); // defTextBoxLeft
3597 avio_wb16(pb, 0x00); // defTextBoxBottom
3598 avio_wb16(pb, 0x00); // defTextBoxRight
3600 avio_wb16(pb, 0x00); // startChar
3601 avio_wb16(pb, 0x00); // endChar
3602 avio_wb16(pb, 0x01); // fontID
3603 avio_w8(pb, 0x00); // fontStyleFlags
3604 avio_w8(pb, 0x00); // fontSize
3605 avio_w8(pb, 0x00); // fgColourRed
3606 avio_w8(pb, 0x00); // fgColourGreen
3607 avio_w8(pb, 0x00); // fgColourBlue
3608 avio_w8(pb, 0x00); // fgColourAlpha
3610 avio_wb32(pb, 0x0D); // box size
3611 ffio_wfourcc(pb, "ftab"); // box atom name
3612 avio_wb16(pb, 0x01); // entry count
3614 avio_wb16(pb, 0x01); // font ID
3615 avio_w8(pb, 0x00); // font name length
3617 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3618 track->enc->extradata = buf;
3619 track->enc->extradata_size = size;
3626 for (i = 0; i < s->nb_chapters; i++) {
3627 AVChapter *c = s->chapters[i];
3628 AVDictionaryEntry *t;
3630 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3631 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3632 pkt.duration = end - pkt.dts;
3634 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3635 len = strlen(t->value);
3637 pkt.data = av_malloc(pkt.size);
3639 return AVERROR(ENOMEM);
3640 AV_WB16(pkt.data, len);
3641 memcpy(pkt.data + 2, t->value, len);
3642 ff_mov_write_packet(s, &pkt);
3643 av_freep(&pkt.data);
3650 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3653 MOVMuxContext *mov = s->priv_data;
3654 MOVTrack *track = &mov->tracks[index];
3655 AVStream *src_st = s->streams[src_index];
3657 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3658 AVRational rate = find_fps(s, src_st);
3660 /* compute the frame number */
3661 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3665 /* tmcd track based on video stream */
3666 track->mode = mov->mode;
3667 track->tag = MKTAG('t','m','c','d');
3668 track->src_track = src_index;
3669 track->timescale = mov->tracks[src_index].timescale;
3670 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3671 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3673 /* encode context: tmcd data stream */
3674 track->enc = avcodec_alloc_context3(NULL);
3675 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3676 track->enc->codec_tag = track->tag;
3677 track->enc->time_base = av_inv_q(rate);
3679 /* the tmcd track just contains one packet with the frame number */
3680 pkt.data = av_malloc(pkt.size);
3681 AV_WB32(pkt.data, tc.start);
3682 ret = ff_mov_write_packet(s, &pkt);
3688 * st->disposition controls the "enabled" flag in the tkhd tag.
3689 * QuickTime will not play a track if it is not enabled. So make sure
3690 * that one track of each type (audio, video, subtitle) is enabled.
3692 * Subtitles are special. For audio and video, setting "enabled" also
3693 * makes the track "default" (i.e. it is rendered when played). For
3694 * subtitles, an "enabled" subtitle is not rendered by default, but
3695 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3698 static void enable_tracks(AVFormatContext *s)
3700 MOVMuxContext *mov = s->priv_data;
3702 uint8_t enabled[AVMEDIA_TYPE_NB];
3703 int first[AVMEDIA_TYPE_NB];
3705 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3710 for (i = 0; i < s->nb_streams; i++) {
3711 AVStream *st = s->streams[i];
3713 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3714 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3717 if (first[st->codec->codec_type] < 0)
3718 first[st->codec->codec_type] = i;
3719 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3720 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3721 enabled[st->codec->codec_type] = 1;
3725 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3727 case AVMEDIA_TYPE_VIDEO:
3728 case AVMEDIA_TYPE_AUDIO:
3729 case AVMEDIA_TYPE_SUBTITLE:
3730 if (!enabled[i] && first[i] >= 0)
3731 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3737 static void mov_free(AVFormatContext *s)
3739 MOVMuxContext *mov = s->priv_data;
3742 if (mov->chapter_track) {
3743 if (mov->tracks[mov->chapter_track].enc)
3744 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3745 av_freep(&mov->tracks[mov->chapter_track].enc);
3748 for (i = 0; i < mov->nb_streams; i++) {
3749 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3750 ff_mov_close_hinting(&mov->tracks[i]);
3751 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3752 av_freep(&mov->tracks[i].enc);
3753 av_freep(&mov->tracks[i].cluster);
3754 av_freep(&mov->tracks[i].frag_info);
3756 if (mov->tracks[i].vos_len)
3757 av_freep(&mov->tracks[i].vos_data);
3760 av_freep(&mov->tracks);
3763 static uint32_t rgb_to_yuv(uint32_t rgb)
3768 r = (rgb >> 16) & 0xFF;
3769 g = (rgb >> 8) & 0xFF;
3772 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3773 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3774 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3776 return (y << 16) | (cr << 8) | cb;
3779 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3782 int i, width = 720, height = 480;
3783 int have_palette = 0, have_size = 0;
3784 uint32_t palette[16];
3785 char *cur = st->codec->extradata;
3787 while (cur && *cur) {
3788 if (strncmp("palette:", cur, 8) == 0) {
3790 count = sscanf(cur + 8,
3791 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3792 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3793 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3794 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3795 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3796 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3797 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3798 &palette[12], &palette[13], &palette[14], &palette[15]);
3800 for (i = 0; i < count; i++) {
3801 palette[i] = rgb_to_yuv(palette[i]);
3804 } else if (!strncmp("size:", cur, 5)) {
3805 sscanf(cur + 5, "%dx%d", &width, &height);
3808 if (have_palette && have_size)
3810 cur += strcspn(cur, "\n\r");
3811 cur += strspn(cur, "\n\r");
3814 track->vos_data = av_malloc(16*4);
3815 if (!track->vos_data)
3816 return AVERROR(ENOMEM);
3817 for (i = 0; i < 16; i++) {
3818 AV_WB32(track->vos_data + i * 4, palette[i]);
3820 track->vos_len = 16 * 4;
3822 st->codec->width = width;
3823 st->codec->height = track->height = height;
3828 static int mov_write_header(AVFormatContext *s)
3830 AVIOContext *pb = s->pb;
3831 MOVMuxContext *mov = s->priv_data;
3832 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3833 int i, ret, hint_track = 0, tmcd_track = 0;
3835 /* Default mode == MP4 */
3836 mov->mode = MODE_MP4;
3838 if (s->oformat != NULL) {
3839 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3840 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3841 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3842 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3843 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3844 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3845 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3848 for (i = 0; i < s->nb_streams; i++)
3849 if (s->streams[i]->codec->flags & CODEC_FLAG_BITEXACT)
3852 /* Set the FRAGMENT flag if any of the fragmentation methods are
3854 if (mov->max_fragment_duration || mov->max_fragment_size ||
3855 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3856 FF_MOV_FLAG_FRAG_KEYFRAME |
3857 FF_MOV_FLAG_FRAG_CUSTOM))
3858 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3860 /* Set other implicit flags immediately */
3861 if (mov->mode == MODE_ISM)
3862 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3863 FF_MOV_FLAG_FRAGMENT;
3865 /* faststart: moov at the beginning of the file, if supported */
3866 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3867 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3868 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3869 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3870 "with fragmentation and custom IO, disabling faststart\n");
3871 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3873 mov->reserved_moov_size = -1;
3876 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3877 s->avoid_negative_ts = 2;
3880 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3881 * is enabled, we don't support non-seekable output at all. */
3882 if (!s->pb->seekable &&
3883 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3884 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3885 return AVERROR(EINVAL);
3888 mov_write_ftyp_tag(pb,s);
3889 if (mov->mode == MODE_PSP) {
3890 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3891 for (i = 0; i < s->nb_streams; i++) {
3892 AVStream *st = s->streams[i];
3893 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3895 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3901 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3902 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3903 return AVERROR(EINVAL);
3905 mov_write_uuidprof_tag(pb, s);
3908 mov->nb_streams = s->nb_streams;
3909 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3910 mov->chapter_track = mov->nb_streams++;
3912 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3913 /* Add hint tracks for each audio and video stream */
3914 hint_track = mov->nb_streams;
3915 for (i = 0; i < s->nb_streams; i++) {
3916 AVStream *st = s->streams[i];
3917 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3918 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3924 if (mov->mode == MODE_MOV) {
3925 tmcd_track = mov->nb_streams;
3927 /* +1 tmcd track for each video stream with a timecode */
3928 for (i = 0; i < s->nb_streams; i++) {
3929 AVStream *st = s->streams[i];
3930 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3931 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3932 mov->nb_meta_tmcd++;
3935 /* check if there is already a tmcd track to remux */
3936 if (mov->nb_meta_tmcd) {
3937 for (i = 0; i < s->nb_streams; i++) {
3938 AVStream *st = s->streams[i];
3939 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3940 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3941 "so timecode metadata are now ignored\n");
3942 mov->nb_meta_tmcd = 0;
3947 mov->nb_streams += mov->nb_meta_tmcd;
3950 // Reserve an extra stream for chapters for the case where chapters
3951 // are written in the trailer
3952 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3954 return AVERROR(ENOMEM);
3956 for (i = 0; i < s->nb_streams; i++) {
3957 AVStream *st= s->streams[i];
3958 MOVTrack *track= &mov->tracks[i];
3959 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3961 track->enc = st->codec;
3963 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3964 if (track->language < 0)
3965 track->language = 0;
3966 track->mode = mov->mode;
3967 track->tag = mov_find_codec_tag(s, track);
3969 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
3970 "codec not currently supported in container\n",
3971 avcodec_get_name(st->codec->codec_id), i);
3972 ret = AVERROR(EINVAL);
3975 /* If hinting of this track is enabled by a later hint track,
3976 * this is updated. */
3977 track->hint_track = -1;
3978 track->start_dts = AV_NOPTS_VALUE;
3979 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3980 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3981 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3982 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3983 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3984 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3985 ret = AVERROR(EINVAL);
3988 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3990 if (mov->video_track_timescale) {
3991 track->timescale = mov->video_track_timescale;
3993 track->timescale = st->codec->time_base.den;
3994 while(track->timescale < 10000)
3995 track->timescale *= 2;
3997 if (track->mode == MODE_MOV && track->timescale > 100000)
3998 av_log(s, AV_LOG_WARNING,
3999 "WARNING codec timebase is very high. If duration is too long,\n"
4000 "file may not be playable by quicktime. Specify a shorter timebase\n"
4001 "or choose different container.\n");
4002 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4003 track->timescale = st->codec->sample_rate;
4004 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
4005 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
4006 track->audio_vbr = 1;
4007 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4008 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4009 st->codec->codec_id == AV_CODEC_ID_ILBC){
4010 if (!st->codec->block_align) {
4011 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4012 ret = AVERROR(EINVAL);
4015 track->sample_size = st->codec->block_align;
4016 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4017 track->audio_vbr = 1;
4019 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4021 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4022 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4023 track->audio_vbr = 1;
4025 if (track->mode != MODE_MOV &&
4026 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4027 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4028 i, track->enc->sample_rate);
4029 ret = AVERROR(EINVAL);
4032 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4033 track->timescale = st->codec->time_base.den;
4034 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4035 track->timescale = st->codec->time_base.den;
4037 track->timescale = MOV_TIMESCALE;
4040 track->height = st->codec->height;
4041 /* The ism specific timescale isn't mandatory, but is assumed by
4042 * some tools, such as mp4split. */
4043 if (mov->mode == MODE_ISM)
4044 track->timescale = 10000000;
4046 avpriv_set_pts_info(st, 64, 1, track->timescale);
4048 /* copy extradata if it exists */
4049 if (st->codec->extradata_size) {
4050 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4051 mov_create_dvd_sub_decoder_specific_info(track, st);
4053 track->vos_len = st->codec->extradata_size;
4054 track->vos_data = av_malloc(track->vos_len);
4055 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4063 if (mov->reserved_moov_size){
4064 mov->reserved_moov_pos= avio_tell(pb);
4065 if (mov->reserved_moov_size > 0)
4066 avio_skip(pb, mov->reserved_moov_size);
4069 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4070 /* If no fragmentation options have been set, set a default. */
4071 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4072 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4073 !mov->max_fragment_duration && !mov->max_fragment_size)
4074 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4076 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4077 mov->reserved_moov_pos = avio_tell(pb);
4078 mov_write_mdat_tag(pb, mov);
4081 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4082 mov->time = ff_iso8601_to_unix_time(t->value);
4084 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4086 if (mov->chapter_track)
4087 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4090 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4091 /* Initialize the hint tracks for each audio and video stream */
4092 for (i = 0; i < s->nb_streams; i++) {
4093 AVStream *st = s->streams[i];
4094 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4095 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4096 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4103 if (mov->nb_meta_tmcd) {
4104 /* Initialize the tmcd tracks */
4105 for (i = 0; i < s->nb_streams; i++) {
4106 AVStream *st = s->streams[i];
4109 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4111 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4114 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4123 if (mov->flags & FF_MOV_FLAG_ISML)
4124 mov_write_isml_manifest(pb, mov);
4126 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4127 mov_write_moov_tag(pb, mov, s);
4137 static int get_moov_size(AVFormatContext *s)
4140 AVIOContext *moov_buf;
4141 MOVMuxContext *mov = s->priv_data;
4143 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4145 mov_write_moov_tag(moov_buf, mov, s);
4146 return ffio_close_null_buf(moov_buf);
4150 * This function gets the moov size if moved to the top of the file: the chunk
4151 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4152 * entries) when the moov is moved to the beginning, so the size of the moov
4153 * would change. It also updates the chunk offset tables.
4155 static int compute_moov_size(AVFormatContext *s)
4157 int i, moov_size, moov_size2;
4158 MOVMuxContext *mov = s->priv_data;
4160 moov_size = get_moov_size(s);
4164 for (i = 0; i < mov->nb_streams; i++)
4165 mov->tracks[i].data_offset += moov_size;
4167 moov_size2 = get_moov_size(s);
4171 /* if the size changed, we just switched from stco to co64 and need to
4172 * update the offsets */
4173 if (moov_size2 != moov_size)
4174 for (i = 0; i < mov->nb_streams; i++)
4175 mov->tracks[i].data_offset += moov_size2 - moov_size;
4180 static int shift_data(AVFormatContext *s)
4182 int ret = 0, moov_size;
4183 MOVMuxContext *mov = s->priv_data;
4184 int64_t pos, pos_end = avio_tell(s->pb);
4185 uint8_t *buf, *read_buf[2];
4186 int read_buf_id = 0;
4188 AVIOContext *read_pb;
4190 moov_size = compute_moov_size(s);
4194 buf = av_malloc(moov_size * 2);
4196 return AVERROR(ENOMEM);
4198 read_buf[1] = buf + moov_size;
4200 /* Shift the data: the AVIO context of the output can only be used for
4201 * writing, so we re-open the same output, but for reading. It also avoids
4202 * a read/seek/write/seek back and forth. */
4204 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4206 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4207 "the second pass (faststart)\n", s->filename);
4211 /* mark the end of the shift to up to the last data we wrote, and get ready
4213 pos_end = avio_tell(s->pb);
4214 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4216 /* start reading at where the new moov will be placed */
4217 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4218 pos = avio_tell(read_pb);
4220 #define READ_BLOCK do { \
4221 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4225 /* shift data by chunk of at most moov_size */
4230 n = read_size[read_buf_id];
4233 avio_write(s->pb, read_buf[read_buf_id], n);
4235 } while (pos < pos_end);
4236 avio_close(read_pb);
4243 static int mov_write_trailer(AVFormatContext *s)
4245 MOVMuxContext *mov = s->priv_data;
4246 AVIOContext *pb = s->pb;
4252 * Before actually writing the trailer, make sure that there are no
4253 * dangling subtitles, that need a terminating sample.
4255 for (i = 0; i < mov->nb_streams; i++) {
4256 MOVTrack *trk = &mov->tracks[i];
4257 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4258 !trk->last_sample_is_subtitle_end) {
4259 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4260 trk->last_sample_is_subtitle_end = 1;
4264 // If there were no chapters when the header was written, but there
4265 // are chapters now, write them in the trailer. This only works
4266 // when we are not doing fragments.
4267 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4268 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4269 mov->chapter_track = mov->nb_streams++;
4270 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4275 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4276 moov_pos = avio_tell(pb);
4278 /* Write size of mdat tag */
4279 if (mov->mdat_size + 8 <= UINT32_MAX) {
4280 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4281 avio_wb32(pb, mov->mdat_size + 8);
4283 /* overwrite 'wide' placeholder atom */
4284 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4285 /* special value: real atom size will be 64 bit value after
4288 ffio_wfourcc(pb, "mdat");
4289 avio_wb64(pb, mov->mdat_size + 16);
4291 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4293 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4294 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4295 res = shift_data(s);
4297 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4298 mov_write_moov_tag(pb, mov, s);
4300 } else if (mov->reserved_moov_size > 0) {
4302 mov_write_moov_tag(pb, mov, s);
4303 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4305 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4308 avio_wb32(pb, size);
4309 ffio_wfourcc(pb, "free");
4310 for (i = 0; i < size; i++)
4312 avio_seek(pb, moov_pos, SEEK_SET);
4314 mov_write_moov_tag(pb, mov, s);
4317 mov_flush_fragment(s);
4318 mov_write_mfra_tag(pb, mov);
4321 for (i = 0; i < mov->nb_streams; i++) {
4322 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4323 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4324 int64_t off = avio_tell(pb);
4326 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4327 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4328 avio_write(pb, buf, 7);
4329 avio_seek(pb, off, SEEK_SET);
4340 #if CONFIG_MOV_MUXER
4342 AVOutputFormat ff_mov_muxer = {
4344 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4345 .extensions = "mov",
4346 .priv_data_size = sizeof(MOVMuxContext),
4347 .audio_codec = AV_CODEC_ID_AAC,
4348 .video_codec = CONFIG_LIBX264_ENCODER ?
4349 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4350 .write_header = mov_write_header,
4351 .write_packet = mov_write_packet,
4352 .write_trailer = mov_write_trailer,
4353 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4354 .codec_tag = (const AVCodecTag* const []){
4355 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4357 .priv_class = &mov_muxer_class,
4360 #if CONFIG_TGP_MUXER
4362 AVOutputFormat ff_tgp_muxer = {
4364 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4365 .extensions = "3gp",
4366 .priv_data_size = sizeof(MOVMuxContext),
4367 .audio_codec = AV_CODEC_ID_AMR_NB,
4368 .video_codec = AV_CODEC_ID_H263,
4369 .write_header = mov_write_header,
4370 .write_packet = mov_write_packet,
4371 .write_trailer = mov_write_trailer,
4372 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4373 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4374 .priv_class = &tgp_muxer_class,
4377 #if CONFIG_MP4_MUXER
4379 AVOutputFormat ff_mp4_muxer = {
4381 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4382 .mime_type = "application/mp4",
4383 .extensions = "mp4",
4384 .priv_data_size = sizeof(MOVMuxContext),
4385 .audio_codec = AV_CODEC_ID_AAC,
4386 .video_codec = CONFIG_LIBX264_ENCODER ?
4387 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4388 .write_header = mov_write_header,
4389 .write_packet = mov_write_packet,
4390 .write_trailer = mov_write_trailer,
4391 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4392 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4393 .priv_class = &mp4_muxer_class,
4396 #if CONFIG_PSP_MUXER
4398 AVOutputFormat ff_psp_muxer = {
4400 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4401 .extensions = "mp4,psp",
4402 .priv_data_size = sizeof(MOVMuxContext),
4403 .audio_codec = AV_CODEC_ID_AAC,
4404 .video_codec = CONFIG_LIBX264_ENCODER ?
4405 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4406 .write_header = mov_write_header,
4407 .write_packet = mov_write_packet,
4408 .write_trailer = mov_write_trailer,
4409 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4410 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4411 .priv_class = &psp_muxer_class,
4414 #if CONFIG_TG2_MUXER
4416 AVOutputFormat ff_tg2_muxer = {
4418 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4419 .extensions = "3g2",
4420 .priv_data_size = sizeof(MOVMuxContext),
4421 .audio_codec = AV_CODEC_ID_AMR_NB,
4422 .video_codec = AV_CODEC_ID_H263,
4423 .write_header = mov_write_header,
4424 .write_packet = mov_write_packet,
4425 .write_trailer = mov_write_trailer,
4426 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4427 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4428 .priv_class = &tg2_muxer_class,
4431 #if CONFIG_IPOD_MUXER
4433 AVOutputFormat ff_ipod_muxer = {
4435 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4436 .mime_type = "application/mp4",
4437 .extensions = "m4v,m4a",
4438 .priv_data_size = sizeof(MOVMuxContext),
4439 .audio_codec = AV_CODEC_ID_AAC,
4440 .video_codec = AV_CODEC_ID_H264,
4441 .write_header = mov_write_header,
4442 .write_packet = mov_write_packet,
4443 .write_trailer = mov_write_trailer,
4444 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4445 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4446 .priv_class = &ipod_muxer_class,
4449 #if CONFIG_ISMV_MUXER
4451 AVOutputFormat ff_ismv_muxer = {
4453 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4454 .mime_type = "application/mp4",
4455 .extensions = "ismv,isma",
4456 .priv_data_size = sizeof(MOVMuxContext),
4457 .audio_codec = AV_CODEC_ID_AAC,
4458 .video_codec = AV_CODEC_ID_H264,
4459 .write_header = mov_write_header,
4460 .write_packet = mov_write_packet,
4461 .write_trailer = mov_write_trailer,
4462 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4463 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4464 .priv_class = &ismv_muxer_class,
4467 #if CONFIG_F4V_MUXER
4469 AVOutputFormat ff_f4v_muxer = {
4471 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4472 .mime_type = "application/f4v",
4473 .extensions = "f4v",
4474 .priv_data_size = sizeof(MOVMuxContext),
4475 .audio_codec = AV_CODEC_ID_AAC,
4476 .video_codec = AV_CODEC_ID_H264,
4477 .write_header = mov_write_header,
4478 .write_packet = mov_write_packet,
4479 .write_trailer = mov_write_trailer,
4480 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4481 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4482 .priv_class = &f4v_muxer_class,