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
26 #include "avio_internal.h"
31 #include "libavcodec/get_bits.h"
32 #include "libavcodec/put_bits.h"
33 #include "libavcodec/vc1.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/intfloat.h"
37 #include "libavutil/mathematics.h"
38 #include "libavutil/opt.h"
39 #include "libavutil/dict.h"
46 static const AVOption options[] = {
47 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
48 { "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" },
49 { "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 },
50 { "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" },
51 { "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" },
52 { "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" },
53 { "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" },
54 { "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" },
55 { "faststart", "Run a second pass to put the moov 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" },
56 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
57 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
58 { "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},
59 { "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},
60 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
61 { "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},
62 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
63 { "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},
64 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
68 #define MOV_CLASS(flavor)\
69 static const AVClass flavor ## _muxer_class = {\
70 .class_name = #flavor " muxer",\
71 .item_name = av_default_item_name,\
73 .version = LIBAVUTIL_VERSION_INT,\
76 //FIXME support 64 bit variant with wide placeholders
77 static int64_t update_size(AVIOContext *pb, int64_t pos)
79 int64_t curpos = avio_tell(pb);
80 avio_seek(pb, pos, SEEK_SET);
81 avio_wb32(pb, curpos - pos); /* rewrite size */
82 avio_seek(pb, curpos, SEEK_SET);
87 static int supports_edts(MOVMuxContext *mov)
89 // EDTS with fragments is tricky as we dont know the duration when its written
90 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
93 static int is_co64_required(const MOVTrack *track)
97 for (i = 0; i < track->entry; i++) {
98 if (!track->cluster[i].chunkNum)
100 if (track->cluster[i].pos + track->data_offset > UINT32_MAX)
106 /* Chunk offset atom */
107 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
110 int mode64 = is_co64_required(track); // use 32 bit size variant if possible
111 int64_t pos = avio_tell(pb);
112 avio_wb32(pb, 0); /* size */
114 ffio_wfourcc(pb, "co64");
116 ffio_wfourcc(pb, "stco");
117 avio_wb32(pb, 0); /* version & flags */
118 avio_wb32(pb, track->chunkCount); /* entry count */
119 for (i=0; i<track->entry; i++) {
120 if(!track->cluster[i].chunkNum)
123 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
125 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
127 return update_size(pb, pos);
130 /* Sample size atom */
131 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
134 int i, j, entries = 0, tst = -1, oldtst = -1;
136 int64_t pos = avio_tell(pb);
137 avio_wb32(pb, 0); /* size */
138 ffio_wfourcc(pb, "stsz");
139 avio_wb32(pb, 0); /* version & flags */
141 for (i=0; i<track->entry; i++) {
142 tst = track->cluster[i].size/track->cluster[i].entries;
143 if(oldtst != -1 && tst != oldtst) {
147 entries += track->cluster[i].entries;
149 if (equalChunks && track->entry) {
150 int sSize = track->entry ? track->cluster[0].size/track->cluster[0].entries : 0;
151 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
152 avio_wb32(pb, sSize); // sample size
153 avio_wb32(pb, entries); // sample count
156 avio_wb32(pb, 0); // sample size
157 avio_wb32(pb, entries); // sample count
158 for (i=0; i<track->entry; i++) {
159 for (j=0; j<track->cluster[i].entries; j++) {
160 avio_wb32(pb, track->cluster[i].size /
161 track->cluster[i].entries);
165 return update_size(pb, pos);
168 /* Sample to chunk atom */
169 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
171 int index = 0, oldval = -1, i;
172 int64_t entryPos, curpos;
174 int64_t pos = avio_tell(pb);
175 avio_wb32(pb, 0); /* size */
176 ffio_wfourcc(pb, "stsc");
177 avio_wb32(pb, 0); // version & flags
178 entryPos = avio_tell(pb);
179 avio_wb32(pb, track->chunkCount); // entry count
180 for (i=0; i<track->entry; i++) {
181 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) {
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_type == AVMEDIA_TYPE_AUDIO)
355 avio_w8(pb, 0x15); // flags (= Audiostream)
357 avio_w8(pb, 0x11); // flags (= Visualstream)
359 avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits)
360 avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
362 avg_bitrate = compute_avg_bitrate(track);
363 // maxbitrate (FIXME should be max rate in any 1 sec window)
364 avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
365 avio_wb32(pb, avg_bitrate);
367 if (track->vos_len) {
368 // DecoderSpecific info descriptor
369 put_descr(pb, 0x05, track->vos_len);
370 avio_write(pb, track->vos_data, track->vos_len);
374 put_descr(pb, 0x06, 1);
376 return update_size(pb, pos);
379 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
381 return codec_id == AV_CODEC_ID_PCM_S24LE ||
382 codec_id == AV_CODEC_ID_PCM_S32LE ||
383 codec_id == AV_CODEC_ID_PCM_F32LE ||
384 codec_id == AV_CODEC_ID_PCM_F64LE;
387 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
389 return codec_id == AV_CODEC_ID_PCM_S24BE ||
390 codec_id == AV_CODEC_ID_PCM_S32BE ||
391 codec_id == AV_CODEC_ID_PCM_F32BE ||
392 codec_id == AV_CODEC_ID_PCM_F64BE;
395 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
397 int64_t pos = avio_tell(pb);
399 avio_wl32(pb, track->tag); // store it byteswapped
400 track->enc->codec_tag = av_bswap16(track->tag >> 16);
401 ff_put_wav_header(pb, track->enc);
402 return update_size(pb, pos);
405 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
407 int64_t pos = avio_tell(pb);
409 ffio_wfourcc(pb, "wfex");
410 ff_put_wav_header(pb, track->enc);
411 return update_size(pb, pos);
414 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
416 uint32_t layout_tag, bitmap;
417 int64_t pos = avio_tell(pb);
419 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
420 track->enc->channel_layout,
423 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
424 "lack of channel information\n");
428 avio_wb32(pb, 0); // Size
429 ffio_wfourcc(pb, "chan"); // Type
430 avio_w8(pb, 0); // Version
431 avio_wb24(pb, 0); // Flags
432 avio_wb32(pb, layout_tag); // mChannelLayoutTag
433 avio_wb32(pb, bitmap); // mChannelBitmap
434 avio_wb32(pb, 0); // mNumberChannelDescriptions
436 return update_size(pb, pos);
439 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
441 int64_t pos = avio_tell(pb);
443 avio_wb32(pb, 0); /* size */
444 ffio_wfourcc(pb, "wave");
446 if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
447 avio_wb32(pb, 12); /* size */
448 ffio_wfourcc(pb, "frma");
449 avio_wl32(pb, track->tag);
452 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
453 /* useless atom needed by mplayer, ipod, not needed by quicktime */
454 avio_wb32(pb, 12); /* size */
455 ffio_wfourcc(pb, "mp4a");
457 mov_write_esds_tag(pb, track);
458 } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
459 mov_write_enda_tag(pb);
460 } else if (mov_pcm_be_gt16(track->enc->codec_id)) {
461 mov_write_enda_tag_be(pb);
462 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
463 mov_write_amr_tag(pb, track);
464 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
465 mov_write_ac3_tag(pb, track);
466 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
467 track->enc->codec_id == AV_CODEC_ID_QDM2) {
468 mov_write_extradata_tag(pb, track);
469 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
470 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
471 mov_write_ms_tag(pb, track);
474 avio_wb32(pb, 8); /* size */
475 avio_wb32(pb, 0); /* null tag */
477 return update_size(pb, pos);
480 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
483 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
484 int unescaped_size, seq_found = 0;
485 int level = 0, interlace = 0;
486 int packet_seq = track->vc1_info.packet_seq;
487 int packet_entry = track->vc1_info.packet_entry;
488 int slices = track->vc1_info.slices;
491 if (track->start_dts == AV_NOPTS_VALUE) {
492 /* No packets written yet, vc1_info isn't authoritative yet. */
493 /* Assume inline sequence and entry headers. This will be
494 * overwritten at the end if the file is seekable. */
495 packet_seq = packet_entry = 1;
498 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
500 return AVERROR(ENOMEM);
501 start = find_next_marker(track->vos_data, end);
502 for (next = start; next < end; start = next) {
505 next = find_next_marker(start + 4, end);
506 size = next - start - 4;
509 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
510 init_get_bits(&gb, unescaped, 8 * unescaped_size);
511 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
512 int profile = get_bits(&gb, 2);
513 if (profile != PROFILE_ADVANCED) {
515 return AVERROR(ENOSYS);
518 level = get_bits(&gb, 3);
519 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
521 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
522 skip_bits(&gb, 1); /* broadcast */
523 interlace = get_bits1(&gb);
524 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
529 return AVERROR(ENOSYS);
532 init_put_bits(&pbc, buf, 7);
533 /* VC1DecSpecStruc */
534 put_bits(&pbc, 4, 12); /* profile - advanced */
535 put_bits(&pbc, 3, level);
536 put_bits(&pbc, 1, 0); /* reserved */
537 /* VC1AdvDecSpecStruc */
538 put_bits(&pbc, 3, level);
539 put_bits(&pbc, 1, 0); /* cbr */
540 put_bits(&pbc, 6, 0); /* reserved */
541 put_bits(&pbc, 1, !interlace); /* no interlace */
542 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
543 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
544 put_bits(&pbc, 1, !slices); /* no slice code */
545 put_bits(&pbc, 1, 0); /* no bframe */
546 put_bits(&pbc, 1, 0); /* reserved */
547 put_bits32(&pbc, track->enc->time_base.den); /* framerate */
548 flush_put_bits(&pbc);
555 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
557 uint8_t buf[7] = { 0 };
560 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
563 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
564 ffio_wfourcc(pb, "dvc1");
565 track->vc1_info.struct_offset = avio_tell(pb);
566 avio_write(pb, buf, sizeof(buf));
567 avio_write(pb, track->vos_data, track->vos_len);
572 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
574 avio_wb32(pb, track->vos_len + 8);
575 ffio_wfourcc(pb, "glbl");
576 avio_write(pb, track->vos_data, track->vos_len);
577 return 8 + track->vos_len;
581 * Compute flags for 'lpcm' tag.
582 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
584 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
587 case AV_CODEC_ID_PCM_F32BE:
588 case AV_CODEC_ID_PCM_F64BE:
590 case AV_CODEC_ID_PCM_F32LE:
591 case AV_CODEC_ID_PCM_F64LE:
593 case AV_CODEC_ID_PCM_U8:
595 case AV_CODEC_ID_PCM_S16BE:
596 case AV_CODEC_ID_PCM_S24BE:
597 case AV_CODEC_ID_PCM_S32BE:
599 case AV_CODEC_ID_PCM_S8:
600 case AV_CODEC_ID_PCM_S16LE:
601 case AV_CODEC_ID_PCM_S24LE:
602 case AV_CODEC_ID_PCM_S32LE:
609 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
613 if (cluster_idx >= track->entry)
616 if (cluster_idx + 1 == track->entry)
617 next_dts = track->track_duration + track->start_dts;
619 next_dts = track->cluster[cluster_idx + 1].dts;
621 return next_dts - track->cluster[cluster_idx].dts;
624 static int get_samples_per_packet(MOVTrack *track)
626 int i, first_duration;
628 // return track->enc->frame_size;
630 /* use 1 for raw PCM */
631 if (!track->audio_vbr)
634 /* check to see if duration is constant for all clusters */
637 first_duration = get_cluster_duration(track, 0);
638 for (i = 1; i < track->entry; i++) {
639 if (get_cluster_duration(track, i) != first_duration)
642 return first_duration;
645 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
647 int64_t pos = avio_tell(pb);
649 uint32_t tag = track->tag;
651 if (track->mode == MODE_MOV) {
652 if (track->timescale > UINT16_MAX) {
653 if (mov_get_lpcm_flags(track->enc->codec_id))
654 tag = AV_RL32("lpcm");
656 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
657 mov_pcm_be_gt16(track->enc->codec_id) ||
658 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
659 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
660 track->enc->codec_id == AV_CODEC_ID_QDM2) {
665 avio_wb32(pb, 0); /* size */
666 avio_wl32(pb, tag); // store it byteswapped
667 avio_wb32(pb, 0); /* Reserved */
668 avio_wb16(pb, 0); /* Reserved */
669 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
671 /* SoundDescription */
672 avio_wb16(pb, version); /* Version */
673 avio_wb16(pb, 0); /* Revision level */
674 avio_wb32(pb, 0); /* Reserved */
679 avio_wb16(pb, 0xfffe);
681 avio_wb32(pb, 0x00010000);
683 avio_wb64(pb, av_double2int(track->enc->sample_rate));
684 avio_wb32(pb, track->enc->channels);
685 avio_wb32(pb, 0x7F000000);
686 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
687 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
688 avio_wb32(pb, track->sample_size);
689 avio_wb32(pb, get_samples_per_packet(track));
691 if (track->mode == MODE_MOV) {
692 avio_wb16(pb, track->enc->channels);
693 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
694 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
695 avio_wb16(pb, 8); /* bits per sample */
698 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
699 } else { /* reserved for mp4/3gp */
705 avio_wb16(pb, 0); /* packet size (= 0) */
706 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
707 track->enc->sample_rate : 0);
708 avio_wb16(pb, 0); /* Reserved */
711 if(version == 1) { /* SoundDescription V1 extended info */
712 if (mov_pcm_le_gt16(track->enc->codec_id) ||
713 mov_pcm_be_gt16(track->enc->codec_id))
714 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
716 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
717 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
718 avio_wb32(pb, track->sample_size); /* Bytes per frame */
719 avio_wb32(pb, 2); /* Bytes per sample */
722 if(track->mode == MODE_MOV &&
723 (track->enc->codec_id == AV_CODEC_ID_AAC ||
724 track->enc->codec_id == AV_CODEC_ID_AC3 ||
725 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
726 track->enc->codec_id == AV_CODEC_ID_ALAC ||
727 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
728 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
729 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
730 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
731 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
732 mov_write_wave_tag(pb, track);
733 else if(track->tag == MKTAG('m','p','4','a'))
734 mov_write_esds_tag(pb, track);
735 else if(track->enc->codec_id == AV_CODEC_ID_AMR_NB)
736 mov_write_amr_tag(pb, track);
737 else if(track->enc->codec_id == AV_CODEC_ID_AC3)
738 mov_write_ac3_tag(pb, track);
739 else if(track->enc->codec_id == AV_CODEC_ID_ALAC)
740 mov_write_extradata_tag(pb, track);
741 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
742 mov_write_wfex_tag(pb, track);
743 else if (track->vos_len > 0)
744 mov_write_glbl_tag(pb, track);
746 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
747 mov_write_chan_tag(pb, track);
749 return update_size(pb, pos);
752 static int mov_write_d263_tag(AVIOContext *pb)
754 avio_wb32(pb, 0xf); /* size */
755 ffio_wfourcc(pb, "d263");
756 ffio_wfourcc(pb, "FFMP");
757 avio_w8(pb, 0); /* decoder version */
758 /* FIXME use AVCodecContext level/profile, when encoder will set values */
759 avio_w8(pb, 0xa); /* level */
760 avio_w8(pb, 0); /* profile */
764 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
766 int64_t pos = avio_tell(pb);
769 ffio_wfourcc(pb, "avcC");
770 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
771 return update_size(pb, pos);
774 /* also used by all avid codecs (dv, imx, meridien) and their variants */
775 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
778 avio_wb32(pb, 24); /* size */
779 ffio_wfourcc(pb, "ACLR");
780 ffio_wfourcc(pb, "ACLR");
781 ffio_wfourcc(pb, "0001");
782 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
783 avio_wb32(pb, 0); /* unknown */
785 avio_wb32(pb, 24); /* size */
786 ffio_wfourcc(pb, "APRG");
787 ffio_wfourcc(pb, "APRG");
788 ffio_wfourcc(pb, "0001");
789 avio_wb32(pb, 1); /* unknown */
790 avio_wb32(pb, 0); /* unknown */
792 avio_wb32(pb, 120); /* size */
793 ffio_wfourcc(pb, "ARES");
794 ffio_wfourcc(pb, "ARES");
795 ffio_wfourcc(pb, "0001");
796 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
797 avio_wb32(pb, track->enc->width);
798 /* values below are based on samples created with quicktime and avid codecs */
799 if (track->vos_data[5] & 2) { // interlaced
800 avio_wb32(pb, track->enc->height/2);
801 avio_wb32(pb, 2); /* unknown */
802 avio_wb32(pb, 0); /* unknown */
803 avio_wb32(pb, 4); /* unknown */
805 avio_wb32(pb, track->enc->height);
806 avio_wb32(pb, 1); /* unknown */
807 avio_wb32(pb, 0); /* unknown */
808 if (track->enc->height == 1080)
809 avio_wb32(pb, 5); /* unknown */
811 avio_wb32(pb, 6); /* unknown */
814 for (i = 0; i < 10; i++)
817 /* extra padding for stsd needed */
822 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
824 int tag = track->enc->codec_tag;
826 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
829 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
830 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
831 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
832 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
833 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
834 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
835 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
840 static const AVCodecTag codec_ipod_tags[] = {
841 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
842 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
843 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
844 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
845 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
846 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
847 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
848 { AV_CODEC_ID_NONE, 0 },
851 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
853 int tag = track->enc->codec_tag;
855 // keep original tag for subs, ipod supports both formats
856 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
857 (tag == MKTAG('t','x','3','g') ||
858 tag == MKTAG('t','e','x','t'))))
859 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
861 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
862 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
863 "Quicktime/Ipod might not play the file\n");
868 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
872 if (track->enc->width == 720) { /* SD */
873 if (track->enc->height == 480) { /* NTSC */
874 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
875 else tag = MKTAG('d','v','c',' ');
876 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
877 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
878 else tag = MKTAG('d','v','p','p');
879 } else if (track->enc->height == 720) { /* HD 720 line */
880 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
881 else tag = MKTAG('d','v','h','p');
882 } else if (track->enc->height == 1080) { /* HD 1080 line */
883 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
884 else tag = MKTAG('d','v','h','6');
886 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
893 static const struct {
894 enum AVPixelFormat pix_fmt;
897 } mov_pix_fmt_tags[] = {
898 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
899 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
900 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
901 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
902 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
903 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
904 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
905 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
906 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
907 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
908 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
909 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
910 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
911 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
912 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
915 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
917 int tag = track->enc->codec_tag;
920 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
921 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
922 tag = mov_pix_fmt_tags[i].tag;
923 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
924 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
932 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
934 int tag = track->enc->codec_tag;
936 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
937 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
938 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
939 track->enc->codec_id == AV_CODEC_ID_H263 ||
940 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
941 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
942 tag = mov_get_dv_codec_tag(s, track);
943 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
944 tag = mov_get_rawvideo_codec_tag(s, track);
945 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
946 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
947 if (!tag) { // if no mac fcc found, try with Microsoft tags
948 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
950 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
951 "the file may be unplayable!\n");
953 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
954 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
955 if (!tag) { // if no mac fcc found, try with Microsoft tags
956 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
958 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
959 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
960 "the file may be unplayable!\n");
963 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
964 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
970 static const AVCodecTag codec_3gp_tags[] = {
971 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
972 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
973 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
974 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
975 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
976 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
977 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
978 { AV_CODEC_ID_NONE, 0 },
981 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
982 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
983 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
984 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
985 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
986 { AV_CODEC_ID_NONE, 0 },
989 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
993 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
994 tag = mp4_get_codec_tag(s, track);
995 else if (track->mode == MODE_ISM) {
996 tag = mp4_get_codec_tag(s, track);
997 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
998 tag = MKTAG('w', 'm', 'a', ' ');
999 } else if (track->mode == MODE_IPOD)
1000 tag = ipod_get_codec_tag(s, track);
1001 else if (track->mode & MODE_3GP)
1002 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1003 else if (track->mode & MODE_F4V)
1004 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1006 tag = mov_get_codec_tag(s, track);
1011 /** Write uuid atom.
1012 * Needed to make file play in iPods running newest firmware
1013 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1015 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1018 ffio_wfourcc(pb, "uuid");
1019 avio_wb32(pb, 0x6b6840f2);
1020 avio_wb32(pb, 0x5f244fc5);
1021 avio_wb32(pb, 0xba39a51b);
1022 avio_wb32(pb, 0xcf0323f3);
1027 static const uint16_t fiel_data[] = {
1028 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1031 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1033 unsigned mov_field_order = 0;
1034 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1035 mov_field_order = fiel_data[track->enc->field_order];
1039 ffio_wfourcc(pb, "fiel");
1040 avio_wb16(pb, mov_field_order);
1044 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1046 int64_t pos = avio_tell(pb);
1047 avio_wb32(pb, 0); /* size */
1048 avio_wl32(pb, track->tag); // store it byteswapped
1049 avio_wb32(pb, 0); /* Reserved */
1050 avio_wb16(pb, 0); /* Reserved */
1051 avio_wb16(pb, 1); /* Data-reference index */
1053 if (track->enc->extradata_size)
1054 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1056 return update_size(pb, pos);
1059 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1062 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1063 track->enc->sample_aspect_ratio.den, INT_MAX);
1066 ffio_wfourcc(pb, "pasp");
1067 avio_wb32(pb, sar.num);
1068 avio_wb32(pb, sar.den);
1072 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1074 int64_t pos = avio_tell(pb);
1075 char compressor_name[32] = { 0 };
1077 avio_wb32(pb, 0); /* size */
1078 avio_wl32(pb, track->tag); // store it byteswapped
1079 avio_wb32(pb, 0); /* Reserved */
1080 avio_wb16(pb, 0); /* Reserved */
1081 avio_wb16(pb, 1); /* Data-reference index */
1083 avio_wb16(pb, 0); /* Codec stream version */
1084 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1085 if (track->mode == MODE_MOV) {
1086 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1087 if(track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1088 avio_wb32(pb, 0); /* Temporal Quality */
1089 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1091 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1092 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1095 avio_wb32(pb, 0); /* Reserved */
1096 avio_wb32(pb, 0); /* Reserved */
1097 avio_wb32(pb, 0); /* Reserved */
1099 avio_wb16(pb, track->enc->width); /* Video width */
1100 avio_wb16(pb, track->height); /* Video height */
1101 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1102 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1103 avio_wb32(pb, 0); /* Data size (= 0) */
1104 avio_wb16(pb, 1); /* Frame count (= 1) */
1106 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1107 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
1108 av_strlcpy(compressor_name,track->enc->codec->name,32);
1109 avio_w8(pb, strlen(compressor_name));
1110 avio_write(pb, compressor_name, 31);
1112 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1113 avio_wb16(pb, track->enc->bits_per_coded_sample);
1115 avio_wb16(pb, 0x18); /* Reserved */
1116 avio_wb16(pb, 0xffff); /* Reserved */
1117 if(track->tag == MKTAG('m','p','4','v'))
1118 mov_write_esds_tag(pb, track);
1119 else if(track->enc->codec_id == AV_CODEC_ID_H263)
1120 mov_write_d263_tag(pb);
1121 else if(track->enc->codec_id == AV_CODEC_ID_AVUI ||
1122 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1123 mov_write_extradata_tag(pb, track);
1125 } else if(track->enc->codec_id == AV_CODEC_ID_DNXHD)
1126 mov_write_avid_tag(pb, track);
1127 else if(track->enc->codec_id == AV_CODEC_ID_H264) {
1128 mov_write_avcc_tag(pb, track);
1129 if(track->mode == MODE_IPOD)
1130 mov_write_uuid_tag_ipod(pb);
1131 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1132 mov_write_fiel_tag(pb, track);
1133 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1134 mov_write_dvc1_tag(pb, track);
1135 else if (track->vos_len > 0)
1136 mov_write_glbl_tag(pb, track);
1138 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1139 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1140 mov_write_pasp_tag(pb, track);
1143 return update_size(pb, pos);
1146 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1148 int64_t pos = avio_tell(pb);
1149 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1150 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1152 if (nb_frames > 255) {
1153 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1154 return AVERROR(EINVAL);
1157 avio_wb32(pb, 0); /* size */
1158 ffio_wfourcc(pb, "tmcd"); /* Data format */
1159 avio_wb32(pb, 0); /* Reserved */
1160 avio_wb32(pb, 1); /* Data reference index */
1161 avio_wb32(pb, 0); /* Flags */
1162 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1163 avio_wb32(pb, track->timescale); /* Timescale */
1164 avio_wb32(pb, frame_duration); /* Frame duration */
1165 avio_w8(pb, nb_frames); /* Number of frames */
1166 avio_wb24(pb, 0); /* Reserved */
1167 /* TODO: source reference string */
1168 return update_size(pb, pos);
1171 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1173 int64_t pos = avio_tell(pb);
1174 avio_wb32(pb, 0); /* size */
1175 ffio_wfourcc(pb, "rtp ");
1176 avio_wb32(pb, 0); /* Reserved */
1177 avio_wb16(pb, 0); /* Reserved */
1178 avio_wb16(pb, 1); /* Data-reference index */
1180 avio_wb16(pb, 1); /* Hint track version */
1181 avio_wb16(pb, 1); /* Highest compatible version */
1182 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1184 avio_wb32(pb, 12); /* size */
1185 ffio_wfourcc(pb, "tims");
1186 avio_wb32(pb, track->timescale);
1188 return update_size(pb, pos);
1191 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1193 int64_t pos = avio_tell(pb);
1194 avio_wb32(pb, 0); /* size */
1195 ffio_wfourcc(pb, "stsd");
1196 avio_wb32(pb, 0); /* version & flags */
1197 avio_wb32(pb, 1); /* entry count */
1198 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1199 mov_write_video_tag(pb, track);
1200 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1201 mov_write_audio_tag(pb, track);
1202 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1203 mov_write_subtitle_tag(pb, track);
1204 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1205 mov_write_rtp_tag(pb, track);
1206 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1207 mov_write_tmcd_tag(pb, track);
1208 return update_size(pb, pos);
1211 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1213 MOVStts *ctts_entries;
1214 uint32_t entries = 0;
1218 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1219 ctts_entries[0].count = 1;
1220 ctts_entries[0].duration = track->cluster[0].cts;
1221 for (i=1; i<track->entry; i++) {
1222 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1223 ctts_entries[entries].count++; /* compress */
1226 ctts_entries[entries].duration = track->cluster[i].cts;
1227 ctts_entries[entries].count = 1;
1230 entries++; /* last one */
1231 atom_size = 16 + (entries * 8);
1232 avio_wb32(pb, atom_size); /* size */
1233 ffio_wfourcc(pb, "ctts");
1234 avio_wb32(pb, 0); /* version & flags */
1235 avio_wb32(pb, entries); /* entry count */
1236 for (i=0; i<entries; i++) {
1237 avio_wb32(pb, ctts_entries[i].count);
1238 avio_wb32(pb, ctts_entries[i].duration);
1240 av_free(ctts_entries);
1244 /* Time to sample atom */
1245 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1247 MOVStts *stts_entries;
1248 uint32_t entries = -1;
1252 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1253 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1254 stts_entries[0].count = track->sample_count;
1255 stts_entries[0].duration = 1;
1258 stts_entries = track->entry ?
1259 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1261 for (i=0; i<track->entry; i++) {
1262 int duration = get_cluster_duration(track, i);
1263 if (i && duration == stts_entries[entries].duration) {
1264 stts_entries[entries].count++; /* compress */
1267 stts_entries[entries].duration = duration;
1268 stts_entries[entries].count = 1;
1271 entries++; /* last one */
1273 atom_size = 16 + (entries * 8);
1274 avio_wb32(pb, atom_size); /* size */
1275 ffio_wfourcc(pb, "stts");
1276 avio_wb32(pb, 0); /* version & flags */
1277 avio_wb32(pb, entries); /* entry count */
1278 for (i=0; i<entries; i++) {
1279 avio_wb32(pb, stts_entries[i].count);
1280 avio_wb32(pb, stts_entries[i].duration);
1282 av_free(stts_entries);
1286 static int mov_write_dref_tag(AVIOContext *pb)
1288 avio_wb32(pb, 28); /* size */
1289 ffio_wfourcc(pb, "dref");
1290 avio_wb32(pb, 0); /* version & flags */
1291 avio_wb32(pb, 1); /* entry count */
1293 avio_wb32(pb, 0xc); /* size */
1294 //FIXME add the alis and rsrc atom
1295 ffio_wfourcc(pb, "url ");
1296 avio_wb32(pb, 1); /* version & flags */
1301 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1303 int64_t pos = avio_tell(pb);
1304 avio_wb32(pb, 0); /* size */
1305 ffio_wfourcc(pb, "stbl");
1306 mov_write_stsd_tag(pb, track);
1307 mov_write_stts_tag(pb, track);
1308 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1309 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1310 track->has_keyframes && track->has_keyframes < track->entry)
1311 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1312 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1313 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1314 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1315 track->flags & MOV_TRACK_CTTS)
1316 mov_write_ctts_tag(pb, track);
1317 mov_write_stsc_tag(pb, track);
1318 mov_write_stsz_tag(pb, track);
1319 mov_write_stco_tag(pb, track);
1320 return update_size(pb, pos);
1323 static int mov_write_dinf_tag(AVIOContext *pb)
1325 int64_t pos = avio_tell(pb);
1326 avio_wb32(pb, 0); /* size */
1327 ffio_wfourcc(pb, "dinf");
1328 mov_write_dref_tag(pb);
1329 return update_size(pb, pos);
1332 static int mov_write_nmhd_tag(AVIOContext *pb)
1335 ffio_wfourcc(pb, "nmhd");
1340 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1342 int64_t pos = avio_tell(pb);
1343 const char *font = "Lucida Grande";
1344 avio_wb32(pb, 0); /* size */
1345 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1346 avio_wb32(pb, 0); /* version & flags */
1347 avio_wb16(pb, 0); /* text font */
1348 avio_wb16(pb, 0); /* text face */
1349 avio_wb16(pb, 12); /* text size */
1350 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1351 avio_wb16(pb, 0x0000); /* text color (red) */
1352 avio_wb16(pb, 0x0000); /* text color (green) */
1353 avio_wb16(pb, 0x0000); /* text color (blue) */
1354 avio_wb16(pb, 0xffff); /* background color (red) */
1355 avio_wb16(pb, 0xffff); /* background color (green) */
1356 avio_wb16(pb, 0xffff); /* background color (blue) */
1357 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1358 avio_write(pb, font, strlen(font)); /* font name */
1359 return update_size(pb, pos);
1362 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1364 int64_t pos = avio_tell(pb);
1365 avio_wb32(pb, 0); /* size */
1366 ffio_wfourcc(pb, "gmhd");
1367 avio_wb32(pb, 0x18); /* gmin size */
1368 ffio_wfourcc(pb, "gmin");/* generic media info */
1369 avio_wb32(pb, 0); /* version & flags */
1370 avio_wb16(pb, 0x40); /* graphics mode = */
1371 avio_wb16(pb, 0x8000); /* opColor (r?) */
1372 avio_wb16(pb, 0x8000); /* opColor (g?) */
1373 avio_wb16(pb, 0x8000); /* opColor (b?) */
1374 avio_wb16(pb, 0); /* balance */
1375 avio_wb16(pb, 0); /* reserved */
1378 * This special text atom is required for
1379 * Apple Quicktime chapters. The contents
1380 * don't appear to be documented, so the
1381 * bytes are copied verbatim.
1383 if (track->tag != MKTAG('c','6','0','8')) {
1384 avio_wb32(pb, 0x2C); /* size */
1385 ffio_wfourcc(pb, "text");
1386 avio_wb16(pb, 0x01);
1387 avio_wb32(pb, 0x00);
1388 avio_wb32(pb, 0x00);
1389 avio_wb32(pb, 0x00);
1390 avio_wb32(pb, 0x01);
1391 avio_wb32(pb, 0x00);
1392 avio_wb32(pb, 0x00);
1393 avio_wb32(pb, 0x00);
1394 avio_wb32(pb, 0x00004000);
1395 avio_wb16(pb, 0x0000);
1398 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1399 int64_t tmcd_pos = avio_tell(pb);
1400 avio_wb32(pb, 0); /* size */
1401 ffio_wfourcc(pb, "tmcd");
1402 mov_write_tcmi_tag(pb, track);
1403 update_size(pb, tmcd_pos);
1405 return update_size(pb, pos);
1408 static int mov_write_smhd_tag(AVIOContext *pb)
1410 avio_wb32(pb, 16); /* size */
1411 ffio_wfourcc(pb, "smhd");
1412 avio_wb32(pb, 0); /* version & flags */
1413 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1414 avio_wb16(pb, 0); /* reserved */
1418 static int mov_write_vmhd_tag(AVIOContext *pb)
1420 avio_wb32(pb, 0x14); /* size (always 0x14) */
1421 ffio_wfourcc(pb, "vmhd");
1422 avio_wb32(pb, 0x01); /* version & flags */
1423 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1427 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1429 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1430 int64_t pos = avio_tell(pb);
1432 if (!track) { /* no media --> data handler */
1435 descr = "DataHandler";
1437 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1438 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1440 descr = "VideoHandler";
1441 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1443 descr = "SoundHandler";
1444 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1445 if (track->tag == MKTAG('c','6','0','8')) {
1447 descr = "ClosedCaptionHandler";
1449 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1450 else hdlr_type = "text";
1451 descr = "SubtitleHandler";
1453 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1455 descr = "TimeCodeHandler";
1456 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1458 descr = "HintHandler";
1462 descr = "DataHandler";
1466 avio_wb32(pb, 0); /* size */
1467 ffio_wfourcc(pb, "hdlr");
1468 avio_wb32(pb, 0); /* Version & flags */
1469 avio_write(pb, hdlr, 4); /* handler */
1470 ffio_wfourcc(pb, hdlr_type); /* handler type */
1471 avio_wb32(pb ,0); /* reserved */
1472 avio_wb32(pb ,0); /* reserved */
1473 avio_wb32(pb ,0); /* reserved */
1474 if (!track || track->mode == MODE_MOV)
1475 avio_w8(pb, strlen(descr)); /* pascal string */
1476 avio_write(pb, descr, strlen(descr)); /* handler description */
1477 if (track && track->mode != MODE_MOV)
1478 avio_w8(pb, 0); /* c string */
1479 return update_size(pb, pos);
1482 static int mov_write_hmhd_tag(AVIOContext *pb)
1484 /* This atom must be present, but leaving the values at zero
1485 * seems harmless. */
1486 avio_wb32(pb, 28); /* size */
1487 ffio_wfourcc(pb, "hmhd");
1488 avio_wb32(pb, 0); /* version, flags */
1489 avio_wb16(pb, 0); /* maxPDUsize */
1490 avio_wb16(pb, 0); /* avgPDUsize */
1491 avio_wb32(pb, 0); /* maxbitrate */
1492 avio_wb32(pb, 0); /* avgbitrate */
1493 avio_wb32(pb, 0); /* reserved */
1497 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1499 int64_t pos = avio_tell(pb);
1500 avio_wb32(pb, 0); /* size */
1501 ffio_wfourcc(pb, "minf");
1502 if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1503 mov_write_vmhd_tag(pb);
1504 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1505 mov_write_smhd_tag(pb);
1506 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1507 if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
1508 mov_write_gmhd_tag(pb, track);
1510 mov_write_nmhd_tag(pb);
1512 } else if (track->tag == MKTAG('t','m','c','d')) {
1513 mov_write_gmhd_tag(pb, track);
1514 } else if (track->tag == MKTAG('r','t','p',' ')) {
1515 mov_write_hmhd_tag(pb);
1517 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1518 mov_write_hdlr_tag(pb, NULL);
1519 mov_write_dinf_tag(pb);
1520 mov_write_stbl_tag(pb, track);
1521 return update_size(pb, pos);
1524 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1526 int version = track->track_duration < INT32_MAX ? 0 : 1;
1528 if (track->mode == MODE_ISM)
1531 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1532 ffio_wfourcc(pb, "mdhd");
1533 avio_w8(pb, version);
1534 avio_wb24(pb, 0); /* flags */
1536 avio_wb64(pb, track->time);
1537 avio_wb64(pb, track->time);
1539 avio_wb32(pb, track->time); /* creation time */
1540 avio_wb32(pb, track->time); /* modification time */
1542 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1544 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1546 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1547 avio_wb16(pb, track->language); /* language */
1548 avio_wb16(pb, 0); /* reserved (quality) */
1550 if(version!=0 && track->mode == MODE_MOV){
1551 av_log(NULL, AV_LOG_ERROR,
1552 "FATAL error, file duration too long for timebase, this file will not be\n"
1553 "playable with quicktime. Choose a different timebase or a different\n"
1554 "container format\n");
1560 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1562 int64_t pos = avio_tell(pb);
1563 avio_wb32(pb, 0); /* size */
1564 ffio_wfourcc(pb, "mdia");
1565 mov_write_mdhd_tag(pb, track);
1566 mov_write_hdlr_tag(pb, track);
1567 mov_write_minf_tag(pb, track);
1568 return update_size(pb, pos);
1571 /* transformation matrix
1575 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1576 int16_t d, int16_t tx, int16_t ty)
1578 avio_wb32(pb, a << 16); /* 16.16 format */
1579 avio_wb32(pb, b << 16); /* 16.16 format */
1580 avio_wb32(pb, 0); /* u in 2.30 format */
1581 avio_wb32(pb, c << 16); /* 16.16 format */
1582 avio_wb32(pb, d << 16); /* 16.16 format */
1583 avio_wb32(pb, 0); /* v in 2.30 format */
1584 avio_wb32(pb, tx << 16); /* 16.16 format */
1585 avio_wb32(pb, ty << 16); /* 16.16 format */
1586 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1589 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1591 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1592 track->timescale, AV_ROUND_UP);
1593 int version = duration < INT32_MAX ? 0 : 1;
1596 if (track->mode == MODE_ISM)
1599 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1600 ffio_wfourcc(pb, "tkhd");
1601 avio_w8(pb, version);
1602 avio_wb24(pb, 0xf); /* flags (track enabled) */
1604 avio_wb64(pb, track->time);
1605 avio_wb64(pb, track->time);
1607 avio_wb32(pb, track->time); /* creation time */
1608 avio_wb32(pb, track->time); /* modification time */
1610 avio_wb32(pb, track->track_id); /* track-id */
1611 avio_wb32(pb, 0); /* reserved */
1613 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1615 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1617 avio_wb32(pb, 0); /* reserved */
1618 avio_wb32(pb, 0); /* reserved */
1619 avio_wb16(pb, 0); /* layer */
1620 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1621 /* Volume, only for audio */
1622 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1623 avio_wb16(pb, 0x0100);
1626 avio_wb16(pb, 0); /* reserved */
1628 /* Matrix structure */
1629 if (st && st->metadata) {
1630 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1631 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1633 if (rotation == 90) {
1634 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1635 } else if (rotation == 180) {
1636 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1637 } else if (rotation == 270) {
1638 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1640 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1642 /* Track width and height, for visual only */
1643 if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1644 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1645 if(track->mode == MODE_MOV) {
1646 avio_wb32(pb, track->enc->width << 16);
1647 avio_wb32(pb, track->height << 16);
1649 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1650 if(!sample_aspect_ratio || track->height != track->enc->height)
1651 sample_aspect_ratio = 1;
1652 avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1653 avio_wb32(pb, track->height*0x10000);
1663 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1665 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1666 track->enc->sample_aspect_ratio.den);
1668 int64_t pos = avio_tell(pb);
1670 avio_wb32(pb, 0); /* size */
1671 ffio_wfourcc(pb, "tapt");
1674 ffio_wfourcc(pb, "clef");
1676 avio_wb32(pb, width << 16);
1677 avio_wb32(pb, track->enc->height << 16);
1680 ffio_wfourcc(pb, "prof");
1682 avio_wb32(pb, width << 16);
1683 avio_wb32(pb, track->enc->height << 16);
1686 ffio_wfourcc(pb, "enof");
1688 avio_wb32(pb, track->enc->width << 16);
1689 avio_wb32(pb, track->enc->height << 16);
1691 return update_size(pb, pos);
1694 // This box seems important for the psp playback ... without it the movie seems to hang
1695 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1697 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1698 track->timescale, AV_ROUND_UP);
1699 int version = duration < INT32_MAX ? 0 : 1;
1700 int entry_size, entry_count, size;
1701 int64_t delay, start_ct = track->cluster[0].cts;
1702 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1703 track->timescale, AV_ROUND_DOWN);
1704 version |= delay < INT32_MAX ? 0 : 1;
1706 entry_size = (version == 1) ? 20 : 12;
1707 entry_count = 1 + (delay > 0);
1708 size = 24 + entry_count * entry_size;
1710 /* write the atom data */
1711 avio_wb32(pb, size);
1712 ffio_wfourcc(pb, "edts");
1713 avio_wb32(pb, size - 8);
1714 ffio_wfourcc(pb, "elst");
1715 avio_w8(pb, version);
1716 avio_wb24(pb, 0); /* flags */
1718 avio_wb32(pb, entry_count);
1719 if (delay > 0) { /* add an empty edit to delay presentation */
1721 avio_wb64(pb, delay);
1724 avio_wb32(pb, delay);
1727 avio_wb32(pb, 0x00010000);
1729 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1730 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1736 avio_wb64(pb, duration);
1737 avio_wb64(pb, start_ct);
1739 avio_wb32(pb, duration);
1740 avio_wb32(pb, start_ct);
1742 avio_wb32(pb, 0x00010000);
1746 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1748 avio_wb32(pb, 20); // size
1749 ffio_wfourcc(pb, "tref");
1750 avio_wb32(pb, 12); // size (subatom)
1751 avio_wl32(pb, track->tref_tag);
1752 avio_wb32(pb, track->tref_id);
1756 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1757 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1759 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1760 ffio_wfourcc(pb, "uuid");
1761 ffio_wfourcc(pb, "USMT");
1762 avio_wb32(pb, 0x21d24fce);
1763 avio_wb32(pb, 0xbb88695c);
1764 avio_wb32(pb, 0xfac9c740);
1765 avio_wb32(pb, 0x1c); // another size here!
1766 ffio_wfourcc(pb, "MTDT");
1767 avio_wb32(pb, 0x00010012);
1768 avio_wb32(pb, 0x0a);
1769 avio_wb32(pb, 0x55c40000);
1775 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1778 AVFormatContext *ctx = track->rtp_ctx;
1779 char buf[1000] = "";
1782 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1783 NULL, NULL, 0, 0, ctx);
1784 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1787 avio_wb32(pb, len + 24);
1788 ffio_wfourcc(pb, "udta");
1789 avio_wb32(pb, len + 16);
1790 ffio_wfourcc(pb, "hnti");
1791 avio_wb32(pb, len + 8);
1792 ffio_wfourcc(pb, "sdp ");
1793 avio_write(pb, buf, len);
1797 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1798 MOVTrack *track, AVStream *st)
1800 int64_t pos = avio_tell(pb);
1801 avio_wb32(pb, 0); /* size */
1802 ffio_wfourcc(pb, "trak");
1803 mov_write_tkhd_tag(pb, track, st);
1804 if (supports_edts(mov))
1805 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1806 if (track->tref_tag)
1807 mov_write_tref_tag(pb, track);
1808 mov_write_mdia_tag(pb, track);
1809 if (track->mode == MODE_PSP)
1810 mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box
1811 if (track->tag == MKTAG('r','t','p',' '))
1812 mov_write_udta_sdp(pb, track);
1813 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1814 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1815 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
1816 mov_write_tapt_tag(pb, track);
1818 return update_size(pb, pos);
1821 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1823 int i, has_audio = 0, has_video = 0;
1824 int64_t pos = avio_tell(pb);
1825 int audio_profile = mov->iods_audio_profile;
1826 int video_profile = mov->iods_video_profile;
1827 for (i = 0; i < mov->nb_streams; i++) {
1828 if(mov->tracks[i].entry > 0) {
1829 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1830 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1833 if (audio_profile < 0)
1834 audio_profile = 0xFF - has_audio;
1835 if (video_profile < 0)
1836 video_profile = 0xFF - has_video;
1837 avio_wb32(pb, 0x0); /* size */
1838 ffio_wfourcc(pb, "iods");
1839 avio_wb32(pb, 0); /* version & flags */
1840 put_descr(pb, 0x10, 7);
1841 avio_wb16(pb, 0x004f);
1844 avio_w8(pb, audio_profile);
1845 avio_w8(pb, video_profile);
1847 return update_size(pb, pos);
1850 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1852 avio_wb32(pb, 0x20); /* size */
1853 ffio_wfourcc(pb, "trex");
1854 avio_wb32(pb, 0); /* version & flags */
1855 avio_wb32(pb, track->track_id); /* track ID */
1856 avio_wb32(pb, 1); /* default sample description index */
1857 avio_wb32(pb, 0); /* default sample duration */
1858 avio_wb32(pb, 0); /* default sample size */
1859 avio_wb32(pb, 0); /* default sample flags */
1863 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1865 int64_t pos = avio_tell(pb);
1867 avio_wb32(pb, 0x0); /* size */
1868 ffio_wfourcc(pb, "mvex");
1869 for (i = 0; i < mov->nb_streams; i++)
1870 mov_write_trex_tag(pb, &mov->tracks[i]);
1871 return update_size(pb, pos);
1874 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1876 int max_track_id = 1, i;
1877 int64_t max_track_len_temp, max_track_len = 0;
1880 for (i=0; i<mov->nb_streams; i++) {
1881 if(mov->tracks[i].entry > 0) {
1882 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1884 mov->tracks[i].timescale,
1886 if (max_track_len < max_track_len_temp)
1887 max_track_len = max_track_len_temp;
1888 if (max_track_id < mov->tracks[i].track_id)
1889 max_track_id = mov->tracks[i].track_id;
1893 version = max_track_len < UINT32_MAX ? 0 : 1;
1894 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1895 ffio_wfourcc(pb, "mvhd");
1896 avio_w8(pb, version);
1897 avio_wb24(pb, 0); /* flags */
1899 avio_wb64(pb, mov->time);
1900 avio_wb64(pb, mov->time);
1902 avio_wb32(pb, mov->time); /* creation time */
1903 avio_wb32(pb, mov->time); /* modification time */
1905 avio_wb32(pb, MOV_TIMESCALE);
1906 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1908 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1909 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1910 avio_wb16(pb, 0); /* reserved */
1911 avio_wb32(pb, 0); /* reserved */
1912 avio_wb32(pb, 0); /* reserved */
1914 /* Matrix structure */
1915 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1917 avio_wb32(pb, 0); /* reserved (preview time) */
1918 avio_wb32(pb, 0); /* reserved (preview duration) */
1919 avio_wb32(pb, 0); /* reserved (poster time) */
1920 avio_wb32(pb, 0); /* reserved (selection time) */
1921 avio_wb32(pb, 0); /* reserved (selection duration) */
1922 avio_wb32(pb, 0); /* reserved (current time) */
1923 avio_wb32(pb, max_track_id + 1); /* Next track id */
1927 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1930 avio_wb32(pb, 33); /* size */
1931 ffio_wfourcc(pb, "hdlr");
1934 ffio_wfourcc(pb, "mdir");
1935 ffio_wfourcc(pb, "appl");
1942 /* helper function to write a data tag with the specified string as data */
1943 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1946 int size = 16 + strlen(data);
1947 avio_wb32(pb, size); /* size */
1948 ffio_wfourcc(pb, "data");
1951 avio_write(pb, data, strlen(data));
1955 lang = ff_mov_iso639_to_lang("und", 1);
1956 avio_wb16(pb, strlen(data)); /* string length */
1957 avio_wb16(pb, lang);
1958 avio_write(pb, data, strlen(data));
1959 return strlen(data) + 4;
1963 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1965 if (value && value[0]) {
1966 int64_t pos = avio_tell(pb);
1967 avio_wb32(pb, 0); /* size */
1968 ffio_wfourcc(pb, name);
1969 mov_write_string_data_tag(pb, value, lang, long_style);
1970 size = update_size(pb, pos);
1975 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1976 const char *name, const char *tag,
1979 int l, lang = 0, len, len2;
1980 AVDictionaryEntry *t, *t2 = NULL;
1983 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1986 len = strlen(t->key);
1987 snprintf(tag2, sizeof(tag2), "%s-", tag);
1988 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1989 len2 = strlen(t2->key);
1990 if (len2 == len+4 && !strcmp(t->value, t2->value)
1991 && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1996 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1999 /* iTunes bpm number */
2000 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2002 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2003 int size = 0, tmpo = t ? atoi(t->value) : 0;
2006 avio_wb32(pb, size);
2007 ffio_wfourcc(pb, "tmpo");
2008 avio_wb32(pb, size-8); /* size */
2009 ffio_wfourcc(pb, "data");
2010 avio_wb32(pb, 0x15); //type specifier
2012 avio_wb16(pb, tmpo); // data
2017 /* iTunes track number */
2018 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2021 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2022 int size = 0, track = t ? atoi(t->value) : 0;
2024 avio_wb32(pb, 32); /* size */
2025 ffio_wfourcc(pb, "trkn");
2026 avio_wb32(pb, 24); /* size */
2027 ffio_wfourcc(pb, "data");
2028 avio_wb32(pb, 0); // 8 bytes empty
2030 avio_wb16(pb, 0); // empty
2031 avio_wb16(pb, track); // track number
2032 avio_wb16(pb, 0); // total track number
2033 avio_wb16(pb, 0); // empty
2039 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2040 const char *name, const char *tag,
2043 AVDictionaryEntry *t = NULL;
2046 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2048 num = atoi(t->value);
2050 avio_wb32(pb, len+8);
2051 ffio_wfourcc(pb, name);
2052 if (len==4) avio_wb32(pb, num);
2053 else avio_w8 (pb, num);
2057 /* iTunes meta data list */
2058 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2061 int64_t pos = avio_tell(pb);
2062 avio_wb32(pb, 0); /* size */
2063 ffio_wfourcc(pb, "ilst");
2064 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2065 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2066 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2067 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2068 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2069 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2070 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2071 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2072 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2073 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2074 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2075 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2076 mov_write_string_metadata(s, pb, "desc", "description",1);
2077 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2078 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2079 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2080 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2081 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2082 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2083 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2084 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2085 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2086 mov_write_trkn_tag(pb, mov, s);
2087 mov_write_tmpo_tag(pb, s);
2088 return update_size(pb, pos);
2091 /* iTunes meta data tag */
2092 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2096 int64_t pos = avio_tell(pb);
2097 avio_wb32(pb, 0); /* size */
2098 ffio_wfourcc(pb, "meta");
2100 mov_write_itunes_hdlr_tag(pb, mov, s);
2101 mov_write_ilst_tag(pb, mov, s);
2102 size = update_size(pb, pos);
2106 static int utf8len(const uint8_t *b)
2111 GET_UTF8(val, *b++, return -1;)
2117 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2121 GET_UTF8(val, *b++, return -1;)
2124 avio_wb16(pb, 0x00);
2128 static uint16_t language_code(const char *str)
2130 return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
2133 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2134 const char *tag, const char *str)
2136 int64_t pos = avio_tell(pb);
2137 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2138 if (!t || !utf8len(t->value))
2140 avio_wb32(pb, 0); /* size */
2141 ffio_wfourcc(pb, tag); /* type */
2142 avio_wb32(pb, 0); /* version + flags */
2143 if (!strcmp(tag, "yrrc"))
2144 avio_wb16(pb, atoi(t->value));
2146 avio_wb16(pb, language_code("eng")); /* language */
2147 avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
2148 if (!strcmp(tag, "albm") &&
2149 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2150 avio_w8(pb, atoi(t->value));
2152 return update_size(pb, pos);
2155 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2157 int64_t pos = avio_tell(pb);
2158 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2160 avio_wb32(pb, 0); // size
2161 ffio_wfourcc(pb, "chpl");
2162 avio_wb32(pb, 0x01000000); // version + flags
2163 avio_wb32(pb, 0); // unknown
2164 avio_w8(pb, nb_chapters);
2166 for (i = 0; i < nb_chapters; i++) {
2167 AVChapter *c = s->chapters[i];
2168 AVDictionaryEntry *t;
2169 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2171 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2172 int len = FFMIN(strlen(t->value), 255);
2174 avio_write(pb, t->value, len);
2178 return update_size(pb, pos);
2181 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2184 AVIOContext *pb_buf;
2188 for (i = 0; i < s->nb_streams; i++)
2189 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
2193 ret = avio_open_dyn_buf(&pb_buf);
2197 if (mov->mode & MODE_3GP) {
2198 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2199 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2200 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2201 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2202 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2203 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2204 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2205 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2206 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2207 mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0);
2208 mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0);
2209 mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0);
2210 mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0);
2211 mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0);
2212 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0);
2213 // currently ignored by mov.c
2214 mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0);
2215 // add support for libquicktime, this atom is also actually read by mov.c
2216 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment" , 0);
2217 mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0);
2218 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0);
2220 /* iTunes meta data */
2221 mov_write_meta_tag(pb_buf, mov, s);
2225 mov_write_chpl_tag(pb_buf, s);
2227 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2228 avio_wb32(pb, size+8);
2229 ffio_wfourcc(pb, "udta");
2230 avio_write(pb, buf, size);
2237 static void mov_write_psp_udta_tag(AVIOContext *pb,
2238 const char *str, const char *lang, int type)
2240 int len = utf8len(str)+1;
2243 avio_wb16(pb, len*2+10); /* size */
2244 avio_wb32(pb, type); /* type */
2245 avio_wb16(pb, language_code(lang)); /* language */
2246 avio_wb16(pb, 0x01); /* ? */
2247 ascii_to_wc(pb, str);
2250 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2252 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2256 pos = avio_tell(pb);
2257 avio_wb32(pb, 0); /* size placeholder*/
2258 ffio_wfourcc(pb, "uuid");
2259 ffio_wfourcc(pb, "USMT");
2260 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2261 avio_wb32(pb, 0xbb88695c);
2262 avio_wb32(pb, 0xfac9c740);
2264 pos2 = avio_tell(pb);
2265 avio_wb32(pb, 0); /* size placeholder*/
2266 ffio_wfourcc(pb, "MTDT");
2270 avio_wb16(pb, 0x0C); /* size */
2271 avio_wb32(pb, 0x0B); /* type */
2272 avio_wb16(pb, language_code("und")); /* language */
2273 avio_wb16(pb, 0x0); /* ? */
2274 avio_wb16(pb, 0x021C); /* data */
2276 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2277 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2278 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2280 update_size(pb, pos2);
2281 return update_size(pb, pos);
2287 static void build_chunks(MOVTrack *trk)
2290 MOVIentry *chunk= &trk->cluster[0];
2291 uint64_t chunkSize = chunk->size;
2293 if (trk->chunkCount)
2296 for(i=1; i<trk->entry; i++){
2297 if(chunk->pos + chunkSize == trk->cluster[i].pos &&
2298 chunkSize + trk->cluster[i].size < (1<<20)){
2299 chunkSize += trk->cluster[i].size;
2300 chunk->samples_in_chunk += trk->cluster[i].entries;
2302 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2303 chunk=&trk->cluster[i];
2304 chunkSize = chunk->size;
2310 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2314 int64_t pos = avio_tell(pb);
2315 avio_wb32(pb, 0); /* size placeholder*/
2316 ffio_wfourcc(pb, "moov");
2318 for (i=0; i<mov->nb_streams; i++) {
2319 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2322 mov->tracks[i].time = mov->time;
2323 mov->tracks[i].track_id = i+1;
2325 if (mov->tracks[i].entry)
2326 build_chunks(&mov->tracks[i]);
2329 if (mov->chapter_track)
2330 for (i=0; i<s->nb_streams; i++) {
2331 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2332 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2334 for (i = 0; i < mov->nb_streams; i++) {
2335 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2336 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2337 mov->tracks[i].tref_id =
2338 mov->tracks[mov->tracks[i].src_track].track_id;
2341 for (i = 0; i < mov->nb_streams; i++) {
2342 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2343 int src_trk = mov->tracks[i].src_track;
2344 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2345 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2346 mov->tracks[i].track_duration = mov->tracks[src_trk].track_duration;
2350 mov_write_mvhd_tag(pb, mov);
2351 if (mov->mode != MODE_MOV && !mov->iods_skip)
2352 mov_write_iods_tag(pb, mov);
2353 for (i=0; i<mov->nb_streams; i++) {
2354 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2355 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2358 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2359 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2361 if (mov->mode == MODE_PSP)
2362 mov_write_uuidusmt_tag(pb, s);
2364 mov_write_udta_tag(pb, mov, s);
2366 return update_size(pb, pos);
2369 static void param_write_int(AVIOContext *pb, const char *name, int value)
2371 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2374 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2376 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2379 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2382 len = FFMIN(sizeof(buf)/2 - 1, len);
2383 ff_data_to_hex(buf, value, len, 0);
2385 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2388 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2390 int64_t pos = avio_tell(pb);
2392 const uint8_t uuid[] = {
2393 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2394 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2398 ffio_wfourcc(pb, "uuid");
2399 avio_write(pb, uuid, sizeof(uuid));
2402 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2403 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2404 avio_printf(pb, "<head>\n");
2405 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2407 avio_printf(pb, "</head>\n");
2408 avio_printf(pb, "<body>\n");
2409 avio_printf(pb, "<switch>\n");
2410 for (i = 0; i < mov->nb_streams; i++) {
2411 MOVTrack *track = &mov->tracks[i];
2413 /* track->track_id is initialized in write_moov, and thus isn't known
2415 int track_id = i + 1;
2417 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2419 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2424 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2425 track->enc->bit_rate);
2426 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2427 param_write_int(pb, "trackID", track_id);
2428 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2429 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2431 int size = track->enc->extradata_size;
2432 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2434 param_write_hex(pb, "CodecPrivateData",
2435 ptr ? ptr : track->enc->extradata,
2439 param_write_string(pb, "FourCC", "H264");
2440 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2441 param_write_string(pb, "FourCC", "WVC1");
2442 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2443 track->enc->extradata_size);
2445 param_write_int(pb, "MaxWidth", track->enc->width);
2446 param_write_int(pb, "MaxHeight", track->enc->height);
2447 param_write_int(pb, "DisplayWidth", track->enc->width);
2448 param_write_int(pb, "DisplayHeight", track->enc->height);
2450 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2451 param_write_string(pb, "FourCC", "AACL");
2452 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2453 param_write_string(pb, "FourCC", "WMAP");
2455 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2456 track->enc->extradata_size);
2457 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2458 track->enc->codec_id));
2459 param_write_int(pb, "Channels", track->enc->channels);
2460 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2461 param_write_int(pb, "BitsPerSample", 16);
2462 param_write_int(pb, "PacketSize", track->enc->block_align ?
2463 track->enc->block_align : 4);
2465 avio_printf(pb, "</%s>\n", type);
2467 avio_printf(pb, "</switch>\n");
2468 avio_printf(pb, "</body>\n");
2469 avio_printf(pb, "</smil>\n");
2471 return update_size(pb, pos);
2474 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2477 ffio_wfourcc(pb, "mfhd");
2479 avio_wb32(pb, mov->fragments);
2483 static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
2484 int64_t moof_offset)
2486 int64_t pos = avio_tell(pb);
2487 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2488 MOV_TFHD_BASE_DATA_OFFSET;
2489 if (!track->entry) {
2490 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2492 flags |= MOV_TFHD_DEFAULT_FLAGS;
2495 /* Don't set a default sample size, the silverlight player refuses
2496 * to play files with that set. Don't set a default sample duration,
2497 * WMP freaks out if it is set. */
2498 if (track->mode == MODE_ISM)
2499 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION);
2501 avio_wb32(pb, 0); /* size placeholder */
2502 ffio_wfourcc(pb, "tfhd");
2503 avio_w8(pb, 0); /* version */
2504 avio_wb24(pb, flags);
2506 avio_wb32(pb, track->track_id); /* track-id */
2507 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2508 avio_wb64(pb, moof_offset);
2509 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2510 track->default_duration = get_cluster_duration(track, 0);
2511 avio_wb32(pb, track->default_duration);
2513 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2514 track->default_size = track->entry ? track->cluster[0].size : 1;
2515 avio_wb32(pb, track->default_size);
2517 track->default_size = -1;
2519 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2520 track->default_sample_flags =
2521 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2522 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2523 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2524 avio_wb32(pb, track->default_sample_flags);
2527 return update_size(pb, pos);
2530 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2532 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2533 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2536 static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
2538 int64_t pos = avio_tell(pb);
2539 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2542 for (i = 0; i < track->entry; i++) {
2543 if (get_cluster_duration(track, i) != track->default_duration)
2544 flags |= MOV_TRUN_SAMPLE_DURATION;
2545 if (track->cluster[i].size != track->default_size)
2546 flags |= MOV_TRUN_SAMPLE_SIZE;
2547 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2548 flags |= MOV_TRUN_SAMPLE_FLAGS;
2550 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2551 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2552 if (track->flags & MOV_TRACK_CTTS)
2553 flags |= MOV_TRUN_SAMPLE_CTS;
2555 avio_wb32(pb, 0); /* size placeholder */
2556 ffio_wfourcc(pb, "trun");
2557 avio_w8(pb, 0); /* version */
2558 avio_wb24(pb, flags);
2560 avio_wb32(pb, track->entry); /* sample count */
2561 track->moof_size_offset = avio_tell(pb);
2562 avio_wb32(pb, 0); /* data offset */
2563 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2564 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2566 for (i = 0; i < track->entry; i++) {
2567 if (flags & MOV_TRUN_SAMPLE_DURATION)
2568 avio_wb32(pb, get_cluster_duration(track, i));
2569 if (flags & MOV_TRUN_SAMPLE_SIZE)
2570 avio_wb32(pb, track->cluster[i].size);
2571 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2572 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2573 if (flags & MOV_TRUN_SAMPLE_CTS)
2574 avio_wb32(pb, track->cluster[i].cts);
2577 return update_size(pb, pos);
2580 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2582 int64_t pos = avio_tell(pb);
2583 const uint8_t uuid[] = {
2584 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2585 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2588 avio_wb32(pb, 0); /* size placeholder */
2589 ffio_wfourcc(pb, "uuid");
2590 avio_write(pb, uuid, sizeof(uuid));
2593 avio_wb64(pb, track->frag_start);
2594 avio_wb64(pb, track->start_dts + track->track_duration -
2595 track->cluster[0].dts);
2597 return update_size(pb, pos);
2600 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2601 MOVTrack *track, int entry)
2603 int n = track->nb_frag_info - 1 - entry, i;
2604 int size = 8 + 16 + 4 + 1 + 16*n;
2605 const uint8_t uuid[] = {
2606 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2607 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2613 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2614 avio_wb32(pb, size);
2615 ffio_wfourcc(pb, "uuid");
2616 avio_write(pb, uuid, sizeof(uuid));
2620 for (i = 0; i < n; i++) {
2621 int index = entry + 1 + i;
2622 avio_wb64(pb, track->frag_info[index].time);
2623 avio_wb64(pb, track->frag_info[index].duration);
2625 if (n < mov->ism_lookahead) {
2626 int free_size = 16*(mov->ism_lookahead - n);
2627 avio_wb32(pb, free_size);
2628 ffio_wfourcc(pb, "free");
2629 for (i = 0; i < free_size - 8; i++)
2636 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2639 int64_t pos = avio_tell(pb);
2641 for (i = 0; i < mov->ism_lookahead; i++) {
2642 /* Update the tfrf tag for the last ism_lookahead fragments,
2643 * nb_frag_info - 1 is the next fragment to be written. */
2644 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2646 avio_seek(pb, pos, SEEK_SET);
2650 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2651 MOVTrack *track, int64_t moof_offset)
2653 int64_t pos = avio_tell(pb);
2654 avio_wb32(pb, 0); /* size placeholder */
2655 ffio_wfourcc(pb, "traf");
2657 mov_write_tfhd_tag(pb, track, moof_offset);
2658 mov_write_trun_tag(pb, track);
2659 if (mov->mode == MODE_ISM) {
2660 mov_write_tfxd_tag(pb, track);
2662 if (mov->ism_lookahead) {
2663 int i, size = 16 + 4 + 1 + 16*mov->ism_lookahead;
2665 track->tfrf_offset = avio_tell(pb);
2666 avio_wb32(pb, 8 + size);
2667 ffio_wfourcc(pb, "free");
2668 for (i = 0; i < size; i++)
2673 return update_size(pb, pos);
2676 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2678 int64_t pos = avio_tell(pb), end;
2681 avio_wb32(pb, 0); /* size placeholder */
2682 ffio_wfourcc(pb, "moof");
2684 mov_write_mfhd_tag(pb, mov);
2685 for (i = 0; i < mov->nb_streams; i++) {
2686 MOVTrack *track = &mov->tracks[i];
2687 if (tracks >= 0 && i != tracks)
2691 mov_write_traf_tag(pb, mov, track, pos);
2694 end = avio_tell(pb);
2695 moof_size = end - pos;
2696 for (i = 0; i < mov->nb_streams; i++) {
2697 MOVTrack *track = &mov->tracks[i];
2698 if (tracks >= 0 && i != tracks)
2702 avio_seek(pb, mov->tracks[i].moof_size_offset, SEEK_SET);
2703 avio_wb32(pb, moof_size + 8 + mov->tracks[i].data_offset);
2705 avio_seek(pb, end, SEEK_SET);
2707 return update_size(pb, pos);
2710 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2712 int64_t pos = avio_tell(pb);
2715 avio_wb32(pb, 0); /* size placeholder */
2716 ffio_wfourcc(pb, "tfra");
2717 avio_w8(pb, 1); /* version */
2720 avio_wb32(pb, track->track_id);
2721 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2722 avio_wb32(pb, track->nb_frag_info);
2723 for (i = 0; i < track->nb_frag_info; i++) {
2724 avio_wb64(pb, track->frag_info[i].time);
2725 avio_wb64(pb, track->frag_info[i].offset);
2726 avio_w8(pb, 1); /* traf number */
2727 avio_w8(pb, 1); /* trun number */
2728 avio_w8(pb, 1); /* sample number */
2731 return update_size(pb, pos);
2734 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2736 int64_t pos = avio_tell(pb);
2739 avio_wb32(pb, 0); /* size placeholder */
2740 ffio_wfourcc(pb, "mfra");
2741 /* An empty mfra atom is enough to indicate to the publishing point that
2742 * the stream has ended. */
2743 if (mov->flags & FF_MOV_FLAG_ISML)
2744 return update_size(pb, pos);
2746 for (i = 0; i < mov->nb_streams; i++) {
2747 MOVTrack *track = &mov->tracks[i];
2748 if (track->nb_frag_info)
2749 mov_write_tfra_tag(pb, track);
2753 ffio_wfourcc(pb, "mfro");
2754 avio_wb32(pb, 0); /* version + flags */
2755 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2757 return update_size(pb, pos);
2760 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2762 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2763 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2765 mov->mdat_pos = avio_tell(pb);
2766 avio_wb32(pb, 0); /* size placeholder*/
2767 ffio_wfourcc(pb, "mdat");
2771 /* TODO: This needs to be more general */
2772 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2774 MOVMuxContext *mov = s->priv_data;
2775 int64_t pos = avio_tell(pb);
2776 int has_h264 = 0, has_video = 0;
2780 for (i = 0; i < s->nb_streams; i++) {
2781 AVStream *st = s->streams[i];
2782 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2784 if (st->codec->codec_id == AV_CODEC_ID_H264)
2788 avio_wb32(pb, 0); /* size */
2789 ffio_wfourcc(pb, "ftyp");
2791 if (mov->mode == MODE_3GP) {
2792 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2793 minor = has_h264 ? 0x100 : 0x200;
2794 } else if (mov->mode & MODE_3G2) {
2795 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2796 minor = has_h264 ? 0x20000 : 0x10000;
2797 }else if (mov->mode == MODE_PSP)
2798 ffio_wfourcc(pb, "MSNV");
2799 else if (mov->mode == MODE_MP4)
2800 ffio_wfourcc(pb, "isom");
2801 else if (mov->mode == MODE_IPOD)
2802 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2803 else if (mov->mode == MODE_ISM)
2804 ffio_wfourcc(pb, "isml");
2805 else if (mov->mode == MODE_F4V)
2806 ffio_wfourcc(pb, "f4v ");
2808 ffio_wfourcc(pb, "qt ");
2810 avio_wb32(pb, minor);
2812 if(mov->mode == MODE_MOV)
2813 ffio_wfourcc(pb, "qt ");
2814 else if (mov->mode == MODE_ISM) {
2815 ffio_wfourcc(pb, "piff");
2816 ffio_wfourcc(pb, "iso2");
2818 ffio_wfourcc(pb, "isom");
2819 ffio_wfourcc(pb, "iso2");
2821 ffio_wfourcc(pb, "avc1");
2824 if (mov->mode == MODE_3GP)
2825 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2826 else if (mov->mode & MODE_3G2)
2827 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2828 else if (mov->mode == MODE_PSP)
2829 ffio_wfourcc(pb, "MSNV");
2830 else if (mov->mode == MODE_MP4)
2831 ffio_wfourcc(pb, "mp41");
2832 return update_size(pb, pos);
2835 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2837 AVCodecContext *video_codec = s->streams[0]->codec;
2838 AVCodecContext *audio_codec = s->streams[1]->codec;
2839 int audio_rate = audio_codec->sample_rate;
2840 int frame_rate = ((video_codec->time_base.den) * (0x10000))/ (video_codec->time_base.num);
2841 int audio_kbitrate = audio_codec->bit_rate / 1000;
2842 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2844 avio_wb32(pb, 0x94); /* size */
2845 ffio_wfourcc(pb, "uuid");
2846 ffio_wfourcc(pb, "PROF");
2848 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2849 avio_wb32(pb, 0xbb88695c);
2850 avio_wb32(pb, 0xfac9c740);
2852 avio_wb32(pb, 0x0); /* ? */
2853 avio_wb32(pb, 0x3); /* 3 sections ? */
2855 avio_wb32(pb, 0x14); /* size */
2856 ffio_wfourcc(pb, "FPRF");
2857 avio_wb32(pb, 0x0); /* ? */
2858 avio_wb32(pb, 0x0); /* ? */
2859 avio_wb32(pb, 0x0); /* ? */
2861 avio_wb32(pb, 0x2c); /* size */
2862 ffio_wfourcc(pb, "APRF");/* audio */
2864 avio_wb32(pb, 0x2); /* TrackID */
2865 ffio_wfourcc(pb, "mp4a");
2866 avio_wb32(pb, 0x20f);
2868 avio_wb32(pb, audio_kbitrate);
2869 avio_wb32(pb, audio_kbitrate);
2870 avio_wb32(pb, audio_rate);
2871 avio_wb32(pb, audio_codec->channels);
2873 avio_wb32(pb, 0x34); /* size */
2874 ffio_wfourcc(pb, "VPRF"); /* video */
2876 avio_wb32(pb, 0x1); /* TrackID */
2877 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2878 ffio_wfourcc(pb, "avc1");
2879 avio_wb16(pb, 0x014D);
2880 avio_wb16(pb, 0x0015);
2882 ffio_wfourcc(pb, "mp4v");
2883 avio_wb16(pb, 0x0000);
2884 avio_wb16(pb, 0x0103);
2887 avio_wb32(pb, video_kbitrate);
2888 avio_wb32(pb, video_kbitrate);
2889 avio_wb32(pb, frame_rate);
2890 avio_wb32(pb, frame_rate);
2891 avio_wb16(pb, video_codec->width);
2892 avio_wb16(pb, video_codec->height);
2893 avio_wb32(pb, 0x010001); /* ? */
2896 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2899 int i, closed_gop = 0;
2901 for (i = 0; i < pkt->size - 4; i++) {
2902 c = (c<<8) + pkt->data[i];
2903 if (c == 0x1b8) { // gop
2904 closed_gop = pkt->data[i+4]>>6 & 0x01;
2905 } else if (c == 0x100) { // pic
2906 int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
2907 if (!temp_ref || closed_gop) // I picture is not reordered
2908 *flags = MOV_SYNC_SAMPLE;
2910 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2917 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2919 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2920 int seq = 0, entry = 0;
2921 int key = pkt->flags & AV_PKT_FLAG_KEY;
2922 start = find_next_marker(pkt->data, end);
2923 for (next = start; next < end; start = next) {
2924 next = find_next_marker(start + 4, end);
2925 switch (AV_RB32(start)) {
2926 case VC1_CODE_SEQHDR:
2929 case VC1_CODE_ENTRYPOINT:
2932 case VC1_CODE_SLICE:
2933 trk->vc1_info.slices = 1;
2937 if (!trk->entry && !fragment) {
2938 /* First packet in first fragment */
2939 trk->vc1_info.first_packet_seq = seq;
2940 trk->vc1_info.first_packet_entry = entry;
2941 } else if ((seq && !trk->vc1_info.packet_seq) ||
2942 (entry && !trk->vc1_info.packet_entry)) {
2944 for (i = 0; i < trk->entry; i++)
2945 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2946 trk->has_keyframes = 0;
2948 trk->vc1_info.packet_seq = 1;
2950 trk->vc1_info.packet_entry = 1;
2952 /* First fragment */
2953 if ((!seq || trk->vc1_info.first_packet_seq) &&
2954 (!entry || trk->vc1_info.first_packet_entry)) {
2955 /* First packet had the same headers as this one, readd the
2956 * sync sample flag. */
2957 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2958 trk->has_keyframes = 1;
2962 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2964 else if (trk->vc1_info.packet_seq)
2966 else if (trk->vc1_info.packet_entry)
2969 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2970 trk->has_keyframes++;
2974 static int get_moov_size(AVFormatContext *s)
2978 AVIOContext *moov_buf;
2979 MOVMuxContext *mov = s->priv_data;
2981 if ((ret = avio_open_dyn_buf(&moov_buf)) < 0)
2983 mov_write_moov_tag(moov_buf, mov, s);
2984 ret = avio_close_dyn_buf(moov_buf, &buf);
2989 static int mov_flush_fragment(AVFormatContext *s)
2991 MOVMuxContext *mov = s->priv_data;
2992 int i, first_track = -1;
2993 int64_t mdat_size = 0;
2995 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2998 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2999 int64_t pos = avio_tell(s->pb);
3001 int buf_size, moov_size;
3003 for (i = 0; i < mov->nb_streams; i++)
3004 if (!mov->tracks[i].entry)
3006 /* Don't write the initial moov unless all tracks have data */
3007 if (i < mov->nb_streams)
3010 moov_size = get_moov_size(s);
3011 for (i = 0; i < mov->nb_streams; i++)
3012 mov->tracks[i].data_offset = pos + moov_size + 8;
3014 mov_write_moov_tag(s->pb, mov, s);
3016 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3017 mov->mdat_buf = NULL;
3018 avio_wb32(s->pb, buf_size + 8);
3019 ffio_wfourcc(s->pb, "mdat");
3020 avio_write(s->pb, buf, buf_size);
3025 for (i = 0; i < mov->nb_streams; i++) {
3026 if (mov->tracks[i].entry)
3027 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3028 mov->tracks[i].track_duration -
3029 mov->tracks[i].cluster[0].dts;
3030 mov->tracks[i].entry = 0;
3036 for (i = 0; i < mov->nb_streams; i++) {
3037 MOVTrack *track = &mov->tracks[i];
3038 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3039 track->data_offset = 0;
3041 track->data_offset = mdat_size;
3042 if (!track->mdat_buf)
3044 mdat_size += avio_tell(track->mdat_buf);
3045 if (first_track < 0)
3052 for (i = 0; i < mov->nb_streams; i++) {
3053 MOVTrack *track = &mov->tracks[i];
3054 int buf_size, write_moof = 1, moof_tracks = -1;
3056 int64_t duration = 0;
3059 duration = track->start_dts + track->track_duration -
3060 track->cluster[0].dts;
3061 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3062 if (!track->mdat_buf)
3064 mdat_size = avio_tell(track->mdat_buf);
3067 write_moof = i == first_track;
3071 MOVFragmentInfo *info;
3073 track->nb_frag_info++;
3074 track->frag_info = av_realloc(track->frag_info,
3075 sizeof(*track->frag_info) *
3076 track->nb_frag_info);
3077 info = &track->frag_info[track->nb_frag_info - 1];
3078 info->offset = avio_tell(s->pb);
3079 info->time = mov->tracks[i].frag_start;
3080 info->duration = duration;
3081 mov_write_tfrf_tags(s->pb, mov, track);
3083 mov_write_moof_tag(s->pb, mov, moof_tracks);
3084 info->tfrf_offset = track->tfrf_offset;
3087 avio_wb32(s->pb, mdat_size + 8);
3088 ffio_wfourcc(s->pb, "mdat");
3092 track->frag_start += duration;
3094 if (!track->mdat_buf)
3096 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3097 track->mdat_buf = NULL;
3099 avio_write(s->pb, buf, buf_size);
3109 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3111 MOVMuxContext *mov = s->priv_data;
3112 AVIOContext *pb = s->pb;
3113 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3114 AVCodecContext *enc = trk->enc;
3115 unsigned int samples_in_chunk = 0;
3116 int size= pkt->size;
3117 uint8_t *reformatted_data = NULL;
3119 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3121 if (mov->fragments > 0) {
3122 if (!trk->mdat_buf) {
3123 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3128 if (!mov->mdat_buf) {
3129 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3136 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3137 /* We must find out how many AMR blocks there are in one packet */
3138 static uint16_t packed_size[16] =
3139 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3142 while (len < size && samples_in_chunk < 100) {
3143 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3146 if (samples_in_chunk > 1) {
3147 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3150 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3151 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3152 samples_in_chunk = enc->frame_size;
3153 } else if (trk->sample_size)
3154 samples_in_chunk = size / trk->sample_size;
3156 samples_in_chunk = 1;
3158 /* copy extradata if it exists */
3159 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3160 trk->vos_len = enc->extradata_size;
3161 trk->vos_data = av_malloc(trk->vos_len);
3162 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3165 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3166 /* from x264 or from bytestream h264 */
3167 /* nal reformating needed */
3168 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3169 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3171 avio_write(pb, reformatted_data, size);
3173 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3175 } else if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3176 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3177 av_log(s, AV_LOG_ERROR, "malformated aac bitstream, use -absf aac_adtstoasc\n");
3180 avio_write(pb, pkt->data, size);
3183 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3184 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3185 /* copy frame to create needed atoms */
3186 trk->vos_len = size;
3187 trk->vos_data = av_malloc(size);
3189 return AVERROR(ENOMEM);
3190 memcpy(trk->vos_data, pkt->data, size);
3193 if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
3194 trk->cluster = av_realloc_f(trk->cluster, sizeof(*trk->cluster), (trk->entry + MOV_INDEX_CLUSTER_SIZE));
3199 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3200 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3201 trk->cluster[trk->entry].chunkNum = 0;
3202 trk->cluster[trk->entry].size = size;
3203 trk->cluster[trk->entry].entries = samples_in_chunk;
3204 trk->cluster[trk->entry].dts = pkt->dts;
3205 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3206 /* First packet of a new fragment. We already wrote the duration
3207 * of the last packet of the previous fragment based on track_duration,
3208 * which might not exactly match our dts. Therefore adjust the dts
3209 * of this packet to be what the previous packets duration implies. */
3210 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3212 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3213 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3215 if (trk->start_dts == AV_NOPTS_VALUE)
3216 trk->start_dts = pkt->dts;
3217 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3218 trk->last_sample_is_subtitle_end = 0;
3220 if (pkt->pts == AV_NOPTS_VALUE) {
3221 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3222 pkt->pts = pkt->dts;
3224 if (pkt->dts != pkt->pts)
3225 trk->flags |= MOV_TRACK_CTTS;
3226 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3227 trk->cluster[trk->entry].flags = 0;
3228 if (enc->codec_id == AV_CODEC_ID_VC1) {
3229 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3230 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3231 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3232 trk->entry > 0) { // force sync sample for the first key frame
3233 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3234 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3235 trk->flags |= MOV_TRACK_STPS;
3237 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3239 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3240 trk->has_keyframes++;
3243 trk->sample_count += samples_in_chunk;
3244 mov->mdat_size += size;
3248 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3249 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3250 reformatted_data, size);
3251 av_free(reformatted_data);
3255 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3257 MOVMuxContext *mov = s->priv_data;
3258 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3259 AVCodecContext *enc = trk->enc;
3260 int64_t frag_duration = 0;
3261 int size = pkt->size;
3263 if (!pkt->size) return 0; /* Discard 0 sized packets */
3265 if (trk->entry && pkt->stream_index < s->nb_streams)
3266 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3267 s->streams[pkt->stream_index]->time_base,
3269 if ((mov->max_fragment_duration &&
3270 frag_duration >= mov->max_fragment_duration) ||
3271 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3272 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3273 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3274 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3275 if (frag_duration >= mov->min_fragment_duration)
3276 mov_flush_fragment(s);
3279 return ff_mov_write_packet(s, pkt);
3282 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3286 uint8_t data[2] = {0};
3289 av_init_packet(&end);
3290 end.size = sizeof(data);
3295 end.stream_index = stream_index;
3297 ret = mov_write_single_packet(s, &end);
3298 av_free_packet(&end);
3303 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3306 mov_flush_fragment(s);
3310 MOVMuxContext *mov = s->priv_data;
3312 if (!pkt->size) return 0; /* Discard 0 sized packets */
3315 * Subtitles require special handling.
3317 * 1) For full complaince, every track must have a sample at
3318 * dts == 0, which is rarely true for subtitles. So, as soon
3319 * as we see any packet with dts > 0, write an empty subtitle
3320 * at dts == 0 for any subtitle track with no samples in it.
3322 * 2) For each subtitle track, check if the current packet's
3323 * dts is past the duration of the last subtitle sample. If
3324 * so, we now need to write an end sample for that subtitle.
3326 * This must be done conditionally to allow for subtitles that
3327 * immediately replace each other, in which case an end sample
3328 * is not needed, and is, in fact, actively harmful.
3330 * 3) See mov_write_trailer for how the final end sample is
3333 for (i = 0; i < mov->nb_streams; i++) {
3334 MOVTrack *trk = &mov->tracks[i];
3337 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3338 trk->track_duration < pkt->dts &&
3339 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3340 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3341 if (ret < 0) return ret;
3342 trk->last_sample_is_subtitle_end = 1;
3346 return mov_write_single_packet(s, pkt);
3350 // QuickTime chapters involve an additional text track with the chapter names
3351 // as samples, and a tref pointing from the other tracks to the chapter one.
3352 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
3356 MOVMuxContext *mov = s->priv_data;
3357 MOVTrack *track = &mov->tracks[tracknum];
3358 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3361 track->mode = mov->mode;
3362 track->tag = MKTAG('t','e','x','t');
3363 track->timescale = MOV_TIMESCALE;
3364 track->enc = avcodec_alloc_context3(NULL);
3365 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3367 if (avio_open_dyn_buf(&pb) >= 0) {
3371 /* Stub header (usually for Quicktime chapter track) */
3373 avio_wb32(pb, 0x01); // displayFlags
3374 avio_w8(pb, 0x00); // horizontal justification
3375 avio_w8(pb, 0x00); // vertical justification
3376 avio_w8(pb, 0x00); // bgColourRed
3377 avio_w8(pb, 0x00); // bgColourGreen
3378 avio_w8(pb, 0x00); // bgColourBlue
3379 avio_w8(pb, 0x00); // bgColourAlpha
3381 avio_wb16(pb, 0x00); // defTextBoxTop
3382 avio_wb16(pb, 0x00); // defTextBoxLeft
3383 avio_wb16(pb, 0x00); // defTextBoxBottom
3384 avio_wb16(pb, 0x00); // defTextBoxRight
3386 avio_wb16(pb, 0x00); // startChar
3387 avio_wb16(pb, 0x00); // endChar
3388 avio_wb16(pb, 0x01); // fontID
3389 avio_w8(pb, 0x00); // fontStyleFlags
3390 avio_w8(pb, 0x00); // fontSize
3391 avio_w8(pb, 0x00); // fgColourRed
3392 avio_w8(pb, 0x00); // fgColourGreen
3393 avio_w8(pb, 0x00); // fgColourBlue
3394 avio_w8(pb, 0x00); // fgColourAlpha
3396 avio_wb32(pb, 0x0D); // box size
3397 ffio_wfourcc(pb, "ftab"); // box atom name
3398 avio_wb16(pb, 0x01); // entry count
3400 avio_wb16(pb, 0x01); // font ID
3401 avio_w8(pb, 0x00); // font name length
3403 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3404 track->enc->extradata = buf;
3405 track->enc->extradata_size = size;
3411 for (i = 0; i < s->nb_chapters; i++) {
3412 AVChapter *c = s->chapters[i];
3413 AVDictionaryEntry *t;
3415 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3416 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3417 pkt.duration = end - pkt.dts;
3419 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3420 len = strlen(t->value);
3422 pkt.data = av_malloc(pkt.size);
3423 AV_WB16(pkt.data, len);
3424 memcpy(pkt.data+2, t->value, len);
3425 ff_mov_write_packet(s, &pkt);
3426 av_freep(&pkt.data);
3431 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3434 MOVMuxContext *mov = s->priv_data;
3435 MOVTrack *track = &mov->tracks[index];
3436 AVStream *src_st = s->streams[src_index];
3438 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3439 AVRational rate = {src_st->codec->time_base.den, src_st->codec->time_base.num};
3441 /* if the codec time base makes no sense, try to fallback on stream frame rate */
3442 if (av_timecode_check_frame_rate(rate) < 0) {
3443 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
3444 rate.num, rate.den, src_st->avg_frame_rate.num, src_st->avg_frame_rate.den);
3445 rate = src_st->avg_frame_rate;
3448 /* compute the frame number */
3449 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3453 /* tmcd track based on video stream */
3454 track->mode = mov->mode;
3455 track->tag = MKTAG('t','m','c','d');
3456 track->src_track = src_index;
3457 track->timescale = mov->tracks[src_index].timescale;
3458 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3459 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3461 /* encode context: tmcd data stream */
3462 track->enc = avcodec_alloc_context3(NULL);
3463 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3464 track->enc->codec_tag = track->tag;
3465 track->enc->time_base = src_st->codec->time_base;
3467 /* the tmcd track just contains one packet with the frame number */
3468 pkt.data = av_malloc(pkt.size);
3469 AV_WB32(pkt.data, tc.start);
3470 ret = ff_mov_write_packet(s, &pkt);
3475 static int mov_write_header(AVFormatContext *s)
3477 AVIOContext *pb = s->pb;
3478 MOVMuxContext *mov = s->priv_data;
3479 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3480 int i, hint_track = 0, tmcd_track = 0;
3482 /* Set the FRAGMENT flag if any of the fragmentation methods are
3484 if (mov->max_fragment_duration || mov->max_fragment_size ||
3485 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3486 FF_MOV_FLAG_FRAG_KEYFRAME |
3487 FF_MOV_FLAG_FRAG_CUSTOM))
3488 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3490 /* faststart: moov at the beginning of the file, if supported */
3491 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3492 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3493 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3495 mov->reserved_moov_size = -1;
3498 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3499 s->avoid_negative_ts = 1;
3502 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3503 * is enabled, we don't support non-seekable output at all. */
3504 if (!s->pb->seekable &&
3505 ((!(mov->flags & FF_MOV_FLAG_FRAGMENT) &&
3506 !(s->oformat && !strcmp(s->oformat->name, "ismv")))
3507 || mov->ism_lookahead)) {
3508 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3512 /* Default mode == MP4 */
3513 mov->mode = MODE_MP4;
3515 if (s->oformat != NULL) {
3516 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3517 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3518 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3519 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3520 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3521 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3522 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3524 mov_write_ftyp_tag(pb,s);
3525 if (mov->mode == MODE_PSP) {
3526 if (s->nb_streams != 2) {
3527 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3530 mov_write_uuidprof_tag(pb,s);
3534 mov->nb_streams = s->nb_streams;
3535 if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
3536 mov->chapter_track = mov->nb_streams++;
3538 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3539 /* Add hint tracks for each audio and video stream */
3540 hint_track = mov->nb_streams;
3541 for (i = 0; i < s->nb_streams; i++) {
3542 AVStream *st = s->streams[i];
3543 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3544 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3550 if (mov->mode == MODE_MOV) {
3551 tmcd_track = mov->nb_streams;
3553 /* +1 tmcd track for each video stream with a timecode */
3554 for (i = 0; i < s->nb_streams; i++) {
3555 AVStream *st = s->streams[i];
3556 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3557 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3558 mov->nb_meta_tmcd++;
3561 /* check if there is already a tmcd track to remux */
3562 if (mov->nb_meta_tmcd) {
3563 for (i = 0; i < s->nb_streams; i++) {
3564 AVStream *st = s->streams[i];
3565 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3566 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3567 "so timecode metadata are now ignored\n");
3568 mov->nb_meta_tmcd = 0;
3573 mov->nb_streams += mov->nb_meta_tmcd;
3576 mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
3578 return AVERROR(ENOMEM);
3580 for(i=0; i<s->nb_streams; i++){
3581 AVStream *st= s->streams[i];
3582 MOVTrack *track= &mov->tracks[i];
3583 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3585 track->enc = st->codec;
3586 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3587 if (track->language < 0)
3588 track->language = 0;
3589 track->mode = mov->mode;
3590 track->tag = mov_find_codec_tag(s, track);
3592 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3593 "codec not currently supported in container\n", i);
3596 /* If hinting of this track is enabled by a later hint track,
3597 * this is updated. */
3598 track->hint_track = -1;
3599 track->start_dts = AV_NOPTS_VALUE;
3600 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
3601 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3602 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3603 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3604 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3605 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3608 track->height = track->tag>>24 == 'n' ? 486 : 576;
3610 track->timescale = st->codec->time_base.den;
3611 while(track->timescale < 10000)
3612 track->timescale *= 2;
3613 if (track->mode == MODE_MOV && track->timescale > 100000)
3614 av_log(s, AV_LOG_WARNING,
3615 "WARNING codec timebase is very high. If duration is too long,\n"
3616 "file may not be playable by quicktime. Specify a shorter timebase\n"
3617 "or choose different container.\n");
3618 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
3619 track->timescale = st->codec->sample_rate;
3620 if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
3621 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
3622 track->audio_vbr = 1;
3623 }else if(st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
3624 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
3625 st->codec->codec_id == AV_CODEC_ID_ILBC){
3626 if (!st->codec->block_align) {
3627 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
3630 track->sample_size = st->codec->block_align;
3631 }else if(st->codec->frame_size > 1){ /* assume compressed audio */
3632 track->audio_vbr = 1;
3634 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
3636 if (track->mode != MODE_MOV &&
3637 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {