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
28 #include "avio_internal.h"
33 #include "libavcodec/get_bits.h"
34 #include "libavcodec/put_bits.h"
35 #include "libavcodec/vc1.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/intfloat.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/dict.h"
49 static const AVOption options[] = {
50 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
51 { "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" },
52 { "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 },
53 { "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" },
54 { "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" },
55 { "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" },
56 { "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" },
57 { "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" },
58 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
61 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
62 { "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},
63 { "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},
64 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
65 { "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},
66 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
67 { "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},
68 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
69 { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
74 #define MOV_CLASS(flavor)\
75 static const AVClass flavor ## _muxer_class = {\
76 .class_name = #flavor " muxer",\
77 .item_name = av_default_item_name,\
79 .version = LIBAVUTIL_VERSION_INT,\
82 static int get_moov_size(AVFormatContext *s);
84 //FIXME support 64 bit variant with wide placeholders
85 static int64_t update_size(AVIOContext *pb, int64_t pos)
87 int64_t curpos = avio_tell(pb);
88 avio_seek(pb, pos, SEEK_SET);
89 avio_wb32(pb, curpos - pos); /* rewrite size */
90 avio_seek(pb, curpos, SEEK_SET);
95 static int supports_edts(MOVMuxContext *mov)
97 // EDTS with fragments is tricky as we don't know the duration when its written
98 return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
101 static int co64_required(const MOVTrack *track)
103 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
108 /* Chunk offset atom */
109 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
112 int mode64 = co64_required(track); // use 32 bit size variant if possible
113 int64_t pos = avio_tell(pb);
114 avio_wb32(pb, 0); /* size */
116 ffio_wfourcc(pb, "co64");
118 ffio_wfourcc(pb, "stco");
119 avio_wb32(pb, 0); /* version & flags */
120 avio_wb32(pb, track->chunkCount); /* entry count */
121 for (i = 0; i < track->entry; i++) {
122 if (!track->cluster[i].chunkNum)
125 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
127 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
129 return update_size(pb, pos);
132 /* Sample size atom */
133 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
136 int i, j, entries = 0, tst = -1, oldtst = -1;
138 int64_t pos = avio_tell(pb);
139 avio_wb32(pb, 0); /* size */
140 ffio_wfourcc(pb, "stsz");
141 avio_wb32(pb, 0); /* version & flags */
143 for (i = 0; i < track->entry; i++) {
144 tst = track->cluster[i].size / track->cluster[i].entries;
145 if (oldtst != -1 && tst != oldtst)
148 entries += track->cluster[i].entries;
150 if (equalChunks && track->entry) {
151 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
152 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
153 avio_wb32(pb, sSize); // sample size
154 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) {
182 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
183 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
184 avio_wb32(pb, 0x1); // sample description index
185 oldval = track->cluster[i].samples_in_chunk;
189 curpos = avio_tell(pb);
190 avio_seek(pb, entryPos, SEEK_SET);
191 avio_wb32(pb, index); // rewrite size
192 avio_seek(pb, curpos, SEEK_SET);
194 return update_size(pb, pos);
197 /* Sync sample atom */
198 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
200 int64_t curpos, entryPos;
202 int64_t pos = avio_tell(pb);
203 avio_wb32(pb, 0); // size
204 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
205 avio_wb32(pb, 0); // version & flags
206 entryPos = avio_tell(pb);
207 avio_wb32(pb, track->entry); // entry count
208 for (i = 0; i < track->entry; i++) {
209 if (track->cluster[i].flags & flag) {
210 avio_wb32(pb, i + 1);
214 curpos = avio_tell(pb);
215 avio_seek(pb, entryPos, SEEK_SET);
216 avio_wb32(pb, index); // rewrite size
217 avio_seek(pb, curpos, SEEK_SET);
218 return update_size(pb, pos);
221 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
223 avio_wb32(pb, 0x11); /* size */
224 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
225 else ffio_wfourcc(pb, "damr");
226 ffio_wfourcc(pb, "FFMP");
227 avio_w8(pb, 0); /* decoder version */
229 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
230 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
231 avio_w8(pb, 0x01); /* Frames per sample */
235 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
240 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
242 if (track->vos_len < 7)
246 ffio_wfourcc(pb, "dac3");
248 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
249 fscod = get_bits(&gbc, 2);
250 frmsizecod = get_bits(&gbc, 6);
251 bsid = get_bits(&gbc, 5);
252 bsmod = get_bits(&gbc, 3);
253 acmod = get_bits(&gbc, 3);
255 skip_bits(&gbc, 2); // dsurmod
257 if ((acmod & 1) && acmod != 1)
258 skip_bits(&gbc, 2); // cmixlev
260 skip_bits(&gbc, 2); // surmixlev
262 lfeon = get_bits1(&gbc);
264 init_put_bits(&pbc, buf, sizeof(buf));
265 put_bits(&pbc, 2, fscod);
266 put_bits(&pbc, 5, bsid);
267 put_bits(&pbc, 3, bsmod);
268 put_bits(&pbc, 3, acmod);
269 put_bits(&pbc, 1, lfeon);
270 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
271 put_bits(&pbc, 5, 0); // reserved
273 flush_put_bits(&pbc);
274 avio_write(pb, buf, sizeof(buf));
280 * This function writes extradata "as is".
281 * Extradata must be formatted like a valid atom (with size and tag).
283 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
285 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
286 return track->enc->extradata_size;
289 static int mov_write_enda_tag(AVIOContext *pb)
292 ffio_wfourcc(pb, "enda");
293 avio_wb16(pb, 1); /* little endian */
297 static int mov_write_enda_tag_be(AVIOContext *pb)
300 ffio_wfourcc(pb, "enda");
301 avio_wb16(pb, 0); /* big endian */
305 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
310 avio_w8(pb, (size >> (7 * i)) | 0x80);
311 avio_w8(pb, size & 0x7F);
314 static unsigned compute_avg_bitrate(MOVTrack *track)
318 if (!track->track_duration)
320 for (i = 0; i < track->entry; i++)
321 size += track->cluster[i].size;
322 return size * 8 * track->timescale / track->track_duration;
325 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
327 int64_t pos = avio_tell(pb);
328 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
329 unsigned avg_bitrate;
331 avio_wb32(pb, 0); // size
332 ffio_wfourcc(pb, "esds");
333 avio_wb32(pb, 0); // Version
336 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
337 avio_wb16(pb, track->track_id);
338 avio_w8(pb, 0x00); // flags (= no flags)
340 // DecoderConfig descriptor
341 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
343 // Object type indication
344 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
345 track->enc->codec_id == AV_CODEC_ID_MP3) &&
346 track->enc->sample_rate > 24000)
347 avio_w8(pb, 0x6B); // 11172-3
349 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
351 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
352 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
353 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
354 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
355 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
356 avio_w8(pb, 0x15); // flags (= Audiostream)
358 avio_w8(pb, 0x11); // flags (= Visualstream)
360 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // 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 next_dts -= track->cluster[cluster_idx].dts;
623 av_assert0(next_dts >= 0);
624 av_assert0(next_dts <= INT_MAX);
629 static int get_samples_per_packet(MOVTrack *track)
631 int i, first_duration;
633 // return track->enc->frame_size;
635 /* use 1 for raw PCM */
636 if (!track->audio_vbr)
639 /* check to see if duration is constant for all clusters */
642 first_duration = get_cluster_duration(track, 0);
643 for (i = 1; i < track->entry; i++) {
644 if (get_cluster_duration(track, i) != first_duration)
647 return first_duration;
650 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
652 int64_t pos = avio_tell(pb);
654 uint32_t tag = track->tag;
656 if (track->mode == MODE_MOV) {
657 if (track->timescale > UINT16_MAX) {
658 if (mov_get_lpcm_flags(track->enc->codec_id))
659 tag = AV_RL32("lpcm");
661 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
662 mov_pcm_be_gt16(track->enc->codec_id) ||
663 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
664 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
665 track->enc->codec_id == AV_CODEC_ID_QDM2) {
670 avio_wb32(pb, 0); /* size */
671 avio_wl32(pb, tag); // store it byteswapped
672 avio_wb32(pb, 0); /* Reserved */
673 avio_wb16(pb, 0); /* Reserved */
674 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
676 /* SoundDescription */
677 avio_wb16(pb, version); /* Version */
678 avio_wb16(pb, 0); /* Revision level */
679 avio_wb32(pb, 0); /* Reserved */
684 avio_wb16(pb, 0xfffe);
686 avio_wb32(pb, 0x00010000);
688 avio_wb64(pb, av_double2int(track->enc->sample_rate));
689 avio_wb32(pb, track->enc->channels);
690 avio_wb32(pb, 0x7F000000);
691 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
692 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
693 avio_wb32(pb, track->sample_size);
694 avio_wb32(pb, get_samples_per_packet(track));
696 if (track->mode == MODE_MOV) {
697 avio_wb16(pb, track->enc->channels);
698 if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
699 track->enc->codec_id == AV_CODEC_ID_PCM_S8)
700 avio_wb16(pb, 8); /* bits per sample */
703 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
704 } else { /* reserved for mp4/3gp */
710 avio_wb16(pb, 0); /* packet size (= 0) */
711 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
712 track->enc->sample_rate : 0);
713 avio_wb16(pb, 0); /* Reserved */
716 if (version == 1) { /* SoundDescription V1 extended info */
717 if (mov_pcm_le_gt16(track->enc->codec_id) ||
718 mov_pcm_be_gt16(track->enc->codec_id))
719 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
721 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
722 avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
723 avio_wb32(pb, track->sample_size); /* Bytes per frame */
724 avio_wb32(pb, 2); /* Bytes per sample */
727 if (track->mode == MODE_MOV &&
728 (track->enc->codec_id == AV_CODEC_ID_AAC ||
729 track->enc->codec_id == AV_CODEC_ID_AC3 ||
730 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
731 track->enc->codec_id == AV_CODEC_ID_ALAC ||
732 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
733 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
734 track->enc->codec_id == AV_CODEC_ID_QDM2 ||
735 (mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
736 (mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
737 mov_write_wave_tag(pb, track);
738 else if (track->tag == MKTAG('m','p','4','a'))
739 mov_write_esds_tag(pb, track);
740 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
741 mov_write_amr_tag(pb, track);
742 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
743 mov_write_ac3_tag(pb, track);
744 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
745 mov_write_extradata_tag(pb, track);
746 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
747 mov_write_wfex_tag(pb, track);
748 else if (track->vos_len > 0)
749 mov_write_glbl_tag(pb, track);
751 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
752 mov_write_chan_tag(pb, track);
754 return update_size(pb, pos);
757 static int mov_write_d263_tag(AVIOContext *pb)
759 avio_wb32(pb, 0xf); /* size */
760 ffio_wfourcc(pb, "d263");
761 ffio_wfourcc(pb, "FFMP");
762 avio_w8(pb, 0); /* decoder version */
763 /* FIXME use AVCodecContext level/profile, when encoder will set values */
764 avio_w8(pb, 0xa); /* level */
765 avio_w8(pb, 0); /* profile */
769 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
771 int64_t pos = avio_tell(pb);
774 ffio_wfourcc(pb, "avcC");
775 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
776 return update_size(pb, pos);
779 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
781 int64_t pos = avio_tell(pb);
784 ffio_wfourcc(pb, "hvcC");
785 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
786 return update_size(pb, pos);
789 /* also used by all avid codecs (dv, imx, meridien) and their variants */
790 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
793 avio_wb32(pb, 24); /* size */
794 ffio_wfourcc(pb, "ACLR");
795 ffio_wfourcc(pb, "ACLR");
796 ffio_wfourcc(pb, "0001");
797 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
798 avio_wb32(pb, 0); /* unknown */
800 avio_wb32(pb, 24); /* size */
801 ffio_wfourcc(pb, "APRG");
802 ffio_wfourcc(pb, "APRG");
803 ffio_wfourcc(pb, "0001");
804 avio_wb32(pb, 1); /* unknown */
805 avio_wb32(pb, 0); /* unknown */
807 avio_wb32(pb, 120); /* size */
808 ffio_wfourcc(pb, "ARES");
809 ffio_wfourcc(pb, "ARES");
810 ffio_wfourcc(pb, "0001");
811 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
812 avio_wb32(pb, track->enc->width);
813 /* values below are based on samples created with quicktime and avid codecs */
814 if (track->vos_data[5] & 2) { // interlaced
815 avio_wb32(pb, track->enc->height / 2);
816 avio_wb32(pb, 2); /* unknown */
817 avio_wb32(pb, 0); /* unknown */
818 avio_wb32(pb, 4); /* unknown */
820 avio_wb32(pb, track->enc->height);
821 avio_wb32(pb, 1); /* unknown */
822 avio_wb32(pb, 0); /* unknown */
823 if (track->enc->height == 1080)
824 avio_wb32(pb, 5); /* unknown */
826 avio_wb32(pb, 6); /* unknown */
829 for (i = 0; i < 10; i++)
832 /* extra padding for stsd needed */
837 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
839 int tag = track->enc->codec_tag;
841 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
844 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
845 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
846 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
847 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
848 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
849 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
850 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
851 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
852 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
857 static const AVCodecTag codec_ipod_tags[] = {
858 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
859 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
860 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
861 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
862 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
863 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
864 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
865 { AV_CODEC_ID_NONE, 0 },
868 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
870 int tag = track->enc->codec_tag;
872 // keep original tag for subs, ipod supports both formats
873 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
874 (tag == MKTAG('t', 'x', '3', 'g') ||
875 tag == MKTAG('t', 'e', 'x', 't'))))
876 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
878 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
879 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
880 "Quicktime/Ipod might not play the file\n");
885 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
889 if (track->enc->width == 720) { /* SD */
890 if (track->enc->height == 480) { /* NTSC */
891 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
892 else tag = MKTAG('d','v','c',' ');
893 }else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
894 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
895 else tag = MKTAG('d','v','p','p');
896 } else if (track->enc->height == 720) { /* HD 720 line */
897 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q');
898 else tag = MKTAG('d','v','h','p');
899 } else if (track->enc->height == 1080) { /* HD 1080 line */
900 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5');
901 else tag = MKTAG('d','v','h','6');
903 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
910 static AVRational find_fps(AVFormatContext *s, AVStream *st)
912 AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
913 /* if the codec time base makes no sense, try to fallback on stream frame rate */
914 if (av_timecode_check_frame_rate(rate) < 0) {
915 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
916 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
917 rate = st->avg_frame_rate;
923 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
925 int tag = track->enc->codec_tag;
926 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
927 AVStream *st = track->st;
928 int rate = av_q2d(find_fps(s, st));
931 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
933 if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
934 if (track->enc->width == 1280 && track->enc->height == 720) {
936 if (rate == 24) tag = MKTAG('x','d','v','4');
937 else if (rate == 25) tag = MKTAG('x','d','v','5');
938 else if (rate == 30) tag = MKTAG('x','d','v','1');
939 else if (rate == 50) tag = MKTAG('x','d','v','a');
940 else if (rate == 60) tag = MKTAG('x','d','v','9');
942 } else if (track->enc->width == 1440 && track->enc->height == 1080) {
944 if (rate == 24) tag = MKTAG('x','d','v','6');
945 else if (rate == 25) tag = MKTAG('x','d','v','7');
946 else if (rate == 30) tag = MKTAG('x','d','v','8');
948 if (rate == 25) tag = MKTAG('x','d','v','3');
949 else if (rate == 30) tag = MKTAG('x','d','v','2');
951 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
953 if (rate == 24) tag = MKTAG('x','d','v','d');
954 else if (rate == 25) tag = MKTAG('x','d','v','e');
955 else if (rate == 30) tag = MKTAG('x','d','v','f');
957 if (rate == 25) tag = MKTAG('x','d','v','c');
958 else if (rate == 30) tag = MKTAG('x','d','v','b');
961 } else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
962 if (track->enc->width == 1280 && track->enc->height == 720) {
964 if (rate == 24) tag = MKTAG('x','d','5','4');
965 else if (rate == 25) tag = MKTAG('x','d','5','5');
966 else if (rate == 30) tag = MKTAG('x','d','5','1');
967 else if (rate == 50) tag = MKTAG('x','d','5','a');
968 else if (rate == 60) tag = MKTAG('x','d','5','9');
970 } else if (track->enc->width == 1920 && track->enc->height == 1080) {
972 if (rate == 24) tag = MKTAG('x','d','5','d');
973 else if (rate == 25) tag = MKTAG('x','d','5','e');
974 else if (rate == 30) tag = MKTAG('x','d','5','f');
976 if (rate == 25) tag = MKTAG('x','d','5','c');
977 else if (rate == 30) tag = MKTAG('x','d','5','b');
985 static const struct {
986 enum AVPixelFormat pix_fmt;
989 } mov_pix_fmt_tags[] = {
990 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
991 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
992 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
993 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
994 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
995 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
996 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
997 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
998 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
999 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1000 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1001 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1002 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1003 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1004 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1007 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1009 int tag = track->enc->codec_tag;
1012 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1013 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
1014 tag = mov_pix_fmt_tags[i].tag;
1015 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1016 if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
1024 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1026 int tag = track->enc->codec_tag;
1028 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1029 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
1030 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
1031 track->enc->codec_id == AV_CODEC_ID_H263 ||
1032 track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1033 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
1034 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
1035 tag = mov_get_dv_codec_tag(s, track);
1036 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
1037 tag = mov_get_rawvideo_codec_tag(s, track);
1038 else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1039 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1040 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1041 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
1042 if (!tag) { // if no mac fcc found, try with Microsoft tags
1043 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
1045 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1046 "the file may be unplayable!\n");
1048 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1049 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
1050 if (!tag) { // if no mac fcc found, try with Microsoft tags
1051 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
1053 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1054 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1055 "the file may be unplayable!\n");
1058 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1059 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
1065 static const AVCodecTag codec_3gp_tags[] = {
1066 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
1067 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1068 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
1069 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1070 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
1071 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
1072 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
1073 { AV_CODEC_ID_NONE, 0 },
1076 static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
1077 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
1078 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
1079 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
1080 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
1081 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
1082 { AV_CODEC_ID_NONE, 0 },
1085 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1089 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
1090 tag = mp4_get_codec_tag(s, track);
1091 else if (track->mode == MODE_ISM) {
1092 tag = mp4_get_codec_tag(s, track);
1093 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
1094 tag = MKTAG('w', 'm', 'a', ' ');
1095 } else if (track->mode == MODE_IPOD)
1096 tag = ipod_get_codec_tag(s, track);
1097 else if (track->mode & MODE_3GP)
1098 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
1099 else if (track->mode == MODE_F4V)
1100 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
1102 tag = mov_get_codec_tag(s, track);
1107 /** Write uuid atom.
1108 * Needed to make file play in iPods running newest firmware
1109 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1111 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1114 ffio_wfourcc(pb, "uuid");
1115 avio_wb32(pb, 0x6b6840f2);
1116 avio_wb32(pb, 0x5f244fc5);
1117 avio_wb32(pb, 0xba39a51b);
1118 avio_wb32(pb, 0xcf0323f3);
1123 static const uint16_t fiel_data[] = {
1124 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1127 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
1129 unsigned mov_field_order = 0;
1130 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
1131 mov_field_order = fiel_data[track->enc->field_order];
1135 ffio_wfourcc(pb, "fiel");
1136 avio_wb16(pb, mov_field_order);
1140 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1142 int64_t pos = avio_tell(pb);
1143 avio_wb32(pb, 0); /* size */
1144 avio_wl32(pb, track->tag); // store it byteswapped
1145 avio_wb32(pb, 0); /* Reserved */
1146 avio_wb16(pb, 0); /* Reserved */
1147 avio_wb16(pb, 1); /* Data-reference index */
1149 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1150 mov_write_esds_tag(pb, track);
1151 else if (track->enc->extradata_size)
1152 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1154 return update_size(pb, pos);
1157 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1160 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1161 track->enc->sample_aspect_ratio.den, INT_MAX);
1164 ffio_wfourcc(pb, "pasp");
1165 avio_wb32(pb, sar.num);
1166 avio_wb32(pb, sar.den);
1170 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1172 int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
1173 || (track->enc->width == 1440 && track->enc->height == 1080)
1174 || (track->enc->width == 1920 && track->enc->height == 1080);
1176 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name) {
1177 av_strlcpy(compressor_name, track->enc->codec->name, 32);
1178 } else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1179 int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
1180 AVStream *st = track->st;
1181 int rate = av_q2d(find_fps(NULL, st));
1182 av_strlcatf(compressor_name, len, "XDCAM");
1183 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
1184 av_strlcatf(compressor_name, len, " HD422");
1185 } else if(track->enc->width == 1440) {
1186 av_strlcatf(compressor_name, len, " HD");
1188 av_strlcatf(compressor_name, len, " EX");
1190 av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
1192 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1196 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1198 int64_t pos = avio_tell(pb);
1199 char compressor_name[32] = { 0 };
1201 avio_wb32(pb, 0); /* size */
1202 avio_wl32(pb, track->tag); // store it byteswapped
1203 avio_wb32(pb, 0); /* Reserved */
1204 avio_wb16(pb, 0); /* Reserved */
1205 avio_wb16(pb, 1); /* Data-reference index */
1207 avio_wb16(pb, 0); /* Codec stream version */
1208 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1209 if (track->mode == MODE_MOV) {
1210 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1211 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1212 avio_wb32(pb, 0); /* Temporal Quality */
1213 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1215 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1216 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1219 avio_wb32(pb, 0); /* Reserved */
1220 avio_wb32(pb, 0); /* Reserved */
1221 avio_wb32(pb, 0); /* Reserved */
1223 avio_wb16(pb, track->enc->width); /* Video width */
1224 avio_wb16(pb, track->height); /* Video height */
1225 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1226 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1227 avio_wb32(pb, 0); /* Data size (= 0) */
1228 avio_wb16(pb, 1); /* Frame count (= 1) */
1230 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1231 find_compressor(compressor_name, 32, track);
1232 avio_w8(pb, strlen(compressor_name));
1233 avio_write(pb, compressor_name, 31);
1235 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1236 avio_wb16(pb, track->enc->bits_per_coded_sample);
1238 avio_wb16(pb, 0x18); /* Reserved */
1239 avio_wb16(pb, 0xffff); /* Reserved */
1240 if (track->tag == MKTAG('m','p','4','v'))
1241 mov_write_esds_tag(pb, track);
1242 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1243 mov_write_d263_tag(pb);
1244 else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
1245 track->enc->codec_id == AV_CODEC_ID_SVQ3) {
1246 mov_write_extradata_tag(pb, track);
1248 } else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1249 mov_write_avid_tag(pb, track);
1250 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1251 mov_write_hvcc_tag(pb, track);
1252 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1253 mov_write_avcc_tag(pb, track);
1254 if (track->mode == MODE_IPOD)
1255 mov_write_uuid_tag_ipod(pb);
1256 } else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1257 mov_write_dvc1_tag(pb, track);
1258 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1259 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1260 /* Don't write any potential extradata here - the cropping
1261 * is signalled via the normal width/height fields. */
1262 } else if (track->vos_len > 0)
1263 mov_write_glbl_tag(pb, track);
1265 if (track->enc->codec_id != AV_CODEC_ID_H264 &&
1266 track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
1267 track->enc->codec_id != AV_CODEC_ID_DNXHD)
1268 if (track->enc->field_order != AV_FIELD_UNKNOWN)
1269 mov_write_fiel_tag(pb, track);
1271 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1272 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1273 mov_write_pasp_tag(pb, track);
1276 return update_size(pb, pos);
1279 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1281 int64_t pos = avio_tell(pb);
1282 avio_wb32(pb, 0); /* size */
1283 ffio_wfourcc(pb, "rtp ");
1284 avio_wb32(pb, 0); /* Reserved */
1285 avio_wb16(pb, 0); /* Reserved */
1286 avio_wb16(pb, 1); /* Data-reference index */
1288 avio_wb16(pb, 1); /* Hint track version */
1289 avio_wb16(pb, 1); /* Highest compatible version */
1290 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1292 avio_wb32(pb, 12); /* size */
1293 ffio_wfourcc(pb, "tims");
1294 avio_wb32(pb, track->timescale);
1296 return update_size(pb, pos);
1299 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1301 int64_t pos = avio_tell(pb);
1303 int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
1304 int nb_frames = 1.0/av_q2d(track->enc->time_base) + 0.5;
1306 if (nb_frames > 255) {
1307 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
1308 return AVERROR(EINVAL);
1311 avio_wb32(pb, 0); /* size */
1312 ffio_wfourcc(pb, "tmcd"); /* Data format */
1313 avio_wb32(pb, 0); /* Reserved */
1314 avio_wb32(pb, 1); /* Data reference index */
1315 avio_wb32(pb, 0); /* Flags */
1316 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
1317 avio_wb32(pb, track->timescale); /* Timescale */
1318 avio_wb32(pb, frame_duration); /* Frame duration */
1319 avio_w8(pb, nb_frames); /* Number of frames */
1320 avio_wb24(pb, 0); /* Reserved */
1321 /* TODO: source reference string */
1324 avio_wb32(pb, 0); /* size */
1325 ffio_wfourcc(pb, "tmcd"); /* Data format */
1326 avio_wb32(pb, 0); /* Reserved */
1327 avio_wb32(pb, 1); /* Data reference index */
1328 if (track->enc->extradata_size)
1329 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1331 return update_size(pb, pos);
1334 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1336 int64_t pos = avio_tell(pb);
1337 avio_wb32(pb, 0); /* size */
1338 ffio_wfourcc(pb, "stsd");
1339 avio_wb32(pb, 0); /* version & flags */
1340 avio_wb32(pb, 1); /* entry count */
1341 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1342 mov_write_video_tag(pb, track);
1343 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1344 mov_write_audio_tag(pb, track);
1345 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1346 mov_write_subtitle_tag(pb, track);
1347 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1348 mov_write_rtp_tag(pb, track);
1349 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1350 mov_write_tmcd_tag(pb, track);
1351 return update_size(pb, pos);
1354 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1356 MOVStts *ctts_entries;
1357 uint32_t entries = 0;
1361 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1362 ctts_entries[0].count = 1;
1363 ctts_entries[0].duration = track->cluster[0].cts;
1364 for (i = 1; i < track->entry; i++) {
1365 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1366 ctts_entries[entries].count++; /* compress */
1369 ctts_entries[entries].duration = track->cluster[i].cts;
1370 ctts_entries[entries].count = 1;
1373 entries++; /* last one */
1374 atom_size = 16 + (entries * 8);
1375 avio_wb32(pb, atom_size); /* size */
1376 ffio_wfourcc(pb, "ctts");
1377 avio_wb32(pb, 0); /* version & flags */
1378 avio_wb32(pb, entries); /* entry count */
1379 for (i = 0; i < entries; i++) {
1380 avio_wb32(pb, ctts_entries[i].count);
1381 avio_wb32(pb, ctts_entries[i].duration);
1383 av_free(ctts_entries);
1387 /* Time to sample atom */
1388 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1390 MOVStts *stts_entries;
1391 uint32_t entries = -1;
1395 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1396 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1397 stts_entries[0].count = track->sample_count;
1398 stts_entries[0].duration = 1;
1401 stts_entries = track->entry ?
1402 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1404 for (i = 0; i < track->entry; i++) {
1405 int duration = get_cluster_duration(track, i);
1406 if (i && duration == stts_entries[entries].duration) {
1407 stts_entries[entries].count++; /* compress */
1410 stts_entries[entries].duration = duration;
1411 stts_entries[entries].count = 1;
1414 entries++; /* last one */
1416 atom_size = 16 + (entries * 8);
1417 avio_wb32(pb, atom_size); /* size */
1418 ffio_wfourcc(pb, "stts");
1419 avio_wb32(pb, 0); /* version & flags */
1420 avio_wb32(pb, entries); /* entry count */
1421 for (i = 0; i < entries; i++) {
1422 avio_wb32(pb, stts_entries[i].count);
1423 avio_wb32(pb, stts_entries[i].duration);
1425 av_free(stts_entries);
1429 static int mov_write_dref_tag(AVIOContext *pb)
1431 avio_wb32(pb, 28); /* size */
1432 ffio_wfourcc(pb, "dref");
1433 avio_wb32(pb, 0); /* version & flags */
1434 avio_wb32(pb, 1); /* entry count */
1436 avio_wb32(pb, 0xc); /* size */
1437 //FIXME add the alis and rsrc atom
1438 ffio_wfourcc(pb, "url ");
1439 avio_wb32(pb, 1); /* version & flags */
1444 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1446 int64_t pos = avio_tell(pb);
1447 avio_wb32(pb, 0); /* size */
1448 ffio_wfourcc(pb, "stbl");
1449 mov_write_stsd_tag(pb, track);
1450 mov_write_stts_tag(pb, track);
1451 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1452 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1453 track->has_keyframes && track->has_keyframes < track->entry)
1454 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1455 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1456 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1457 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1458 track->flags & MOV_TRACK_CTTS)
1459 mov_write_ctts_tag(pb, track);
1460 mov_write_stsc_tag(pb, track);
1461 mov_write_stsz_tag(pb, track);
1462 mov_write_stco_tag(pb, track);
1463 return update_size(pb, pos);
1466 static int mov_write_dinf_tag(AVIOContext *pb)
1468 int64_t pos = avio_tell(pb);
1469 avio_wb32(pb, 0); /* size */
1470 ffio_wfourcc(pb, "dinf");
1471 mov_write_dref_tag(pb);
1472 return update_size(pb, pos);
1475 static int mov_write_nmhd_tag(AVIOContext *pb)
1478 ffio_wfourcc(pb, "nmhd");
1483 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
1485 int64_t pos = avio_tell(pb);
1486 const char *font = "Lucida Grande";
1487 avio_wb32(pb, 0); /* size */
1488 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
1489 avio_wb32(pb, 0); /* version & flags */
1490 avio_wb16(pb, 0); /* text font */
1491 avio_wb16(pb, 0); /* text face */
1492 avio_wb16(pb, 12); /* text size */
1493 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
1494 avio_wb16(pb, 0x0000); /* text color (red) */
1495 avio_wb16(pb, 0x0000); /* text color (green) */
1496 avio_wb16(pb, 0x0000); /* text color (blue) */
1497 avio_wb16(pb, 0xffff); /* background color (red) */
1498 avio_wb16(pb, 0xffff); /* background color (green) */
1499 avio_wb16(pb, 0xffff); /* background color (blue) */
1500 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
1501 avio_write(pb, font, strlen(font)); /* font name */
1502 return update_size(pb, pos);
1505 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
1507 int64_t pos = avio_tell(pb);
1508 avio_wb32(pb, 0); /* size */
1509 ffio_wfourcc(pb, "gmhd");
1510 avio_wb32(pb, 0x18); /* gmin size */
1511 ffio_wfourcc(pb, "gmin");/* generic media info */
1512 avio_wb32(pb, 0); /* version & flags */
1513 avio_wb16(pb, 0x40); /* graphics mode = */
1514 avio_wb16(pb, 0x8000); /* opColor (r?) */
1515 avio_wb16(pb, 0x8000); /* opColor (g?) */
1516 avio_wb16(pb, 0x8000); /* opColor (b?) */
1517 avio_wb16(pb, 0); /* balance */
1518 avio_wb16(pb, 0); /* reserved */
1521 * This special text atom is required for
1522 * Apple Quicktime chapters. The contents
1523 * don't appear to be documented, so the
1524 * bytes are copied verbatim.
1526 if (track->tag != MKTAG('c','6','0','8')) {
1527 avio_wb32(pb, 0x2C); /* size */
1528 ffio_wfourcc(pb, "text");
1529 avio_wb16(pb, 0x01);
1530 avio_wb32(pb, 0x00);
1531 avio_wb32(pb, 0x00);
1532 avio_wb32(pb, 0x00);
1533 avio_wb32(pb, 0x01);
1534 avio_wb32(pb, 0x00);
1535 avio_wb32(pb, 0x00);
1536 avio_wb32(pb, 0x00);
1537 avio_wb32(pb, 0x00004000);
1538 avio_wb16(pb, 0x0000);
1541 if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1542 int64_t tmcd_pos = avio_tell(pb);
1543 avio_wb32(pb, 0); /* size */
1544 ffio_wfourcc(pb, "tmcd");
1545 mov_write_tcmi_tag(pb, track);
1546 update_size(pb, tmcd_pos);
1548 return update_size(pb, pos);
1551 static int mov_write_smhd_tag(AVIOContext *pb)
1553 avio_wb32(pb, 16); /* size */
1554 ffio_wfourcc(pb, "smhd");
1555 avio_wb32(pb, 0); /* version & flags */
1556 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1557 avio_wb16(pb, 0); /* reserved */
1561 static int mov_write_vmhd_tag(AVIOContext *pb)
1563 avio_wb32(pb, 0x14); /* size (always 0x14) */
1564 ffio_wfourcc(pb, "vmhd");
1565 avio_wb32(pb, 0x01); /* version & flags */
1566 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1570 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1572 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1573 int64_t pos = avio_tell(pb);
1577 descr = "DataHandler";
1580 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1581 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1583 descr = "VideoHandler";
1584 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1586 descr = "SoundHandler";
1587 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1588 if (track->tag == MKTAG('c','6','0','8')) {
1590 descr = "ClosedCaptionHandler";
1592 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1593 else if (track->tag == MKTAG('m','p','4','s')) hdlr_type = "subp";
1594 else hdlr_type = "text";
1595 descr = "SubtitleHandler";
1597 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1599 descr = "HintHandler";
1600 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1602 descr = "TimeCodeHandler";
1605 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1606 track->enc->codec_tag);
1608 av_log(track->enc, AV_LOG_WARNING,
1609 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1610 tag_buf, track->enc->codec_tag);
1614 avio_wb32(pb, 0); /* size */
1615 ffio_wfourcc(pb, "hdlr");
1616 avio_wb32(pb, 0); /* Version & flags */
1617 avio_write(pb, hdlr, 4); /* handler */
1618 ffio_wfourcc(pb, hdlr_type); /* handler type */
1619 avio_wb32(pb, 0); /* reserved */
1620 avio_wb32(pb, 0); /* reserved */
1621 avio_wb32(pb, 0); /* reserved */
1622 if (!track || track->mode == MODE_MOV)
1623 avio_w8(pb, strlen(descr)); /* pascal string */
1624 avio_write(pb, descr, strlen(descr)); /* handler description */
1625 if (track && track->mode != MODE_MOV)
1626 avio_w8(pb, 0); /* c string */
1627 return update_size(pb, pos);
1630 static int mov_write_hmhd_tag(AVIOContext *pb)
1632 /* This atom must be present, but leaving the values at zero
1633 * seems harmless. */
1634 avio_wb32(pb, 28); /* size */
1635 ffio_wfourcc(pb, "hmhd");
1636 avio_wb32(pb, 0); /* version, flags */
1637 avio_wb16(pb, 0); /* maxPDUsize */
1638 avio_wb16(pb, 0); /* avgPDUsize */
1639 avio_wb32(pb, 0); /* maxbitrate */
1640 avio_wb32(pb, 0); /* avgbitrate */
1641 avio_wb32(pb, 0); /* reserved */
1645 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1647 int64_t pos = avio_tell(pb);
1648 avio_wb32(pb, 0); /* size */
1649 ffio_wfourcc(pb, "minf");
1650 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1651 mov_write_vmhd_tag(pb);
1652 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1653 mov_write_smhd_tag(pb);
1654 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1655 if (track->tag == MKTAG('t','e','x','t') || track->tag == MKTAG('c','6','0','8')) {
1656 mov_write_gmhd_tag(pb, track);
1658 mov_write_nmhd_tag(pb);
1660 } else if (track->tag == MKTAG('r','t','p',' ')) {
1661 mov_write_hmhd_tag(pb);
1662 } else if (track->tag == MKTAG('t','m','c','d')) {
1663 mov_write_gmhd_tag(pb, track);
1665 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1666 mov_write_hdlr_tag(pb, NULL);
1667 mov_write_dinf_tag(pb);
1668 mov_write_stbl_tag(pb, track);
1669 return update_size(pb, pos);
1672 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1674 int version = track->track_duration < INT32_MAX ? 0 : 1;
1676 if (track->mode == MODE_ISM)
1679 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1680 ffio_wfourcc(pb, "mdhd");
1681 avio_w8(pb, version);
1682 avio_wb24(pb, 0); /* flags */
1684 avio_wb64(pb, track->time);
1685 avio_wb64(pb, track->time);
1687 avio_wb32(pb, track->time); /* creation time */
1688 avio_wb32(pb, track->time); /* modification time */
1690 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1692 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1694 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1695 avio_wb16(pb, track->language); /* language */
1696 avio_wb16(pb, 0); /* reserved (quality) */
1698 if (version != 0 && track->mode == MODE_MOV) {
1699 av_log(NULL, AV_LOG_ERROR,
1700 "FATAL error, file duration too long for timebase, this file will not be\n"
1701 "playable with quicktime. Choose a different timebase or a different\n"
1702 "container format\n");
1708 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1710 int64_t pos = avio_tell(pb);
1711 avio_wb32(pb, 0); /* size */
1712 ffio_wfourcc(pb, "mdia");
1713 mov_write_mdhd_tag(pb, track);
1714 mov_write_hdlr_tag(pb, track);
1715 mov_write_minf_tag(pb, track);
1716 return update_size(pb, pos);
1719 /* transformation matrix
1723 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
1724 int16_t d, int16_t tx, int16_t ty)
1726 avio_wb32(pb, a << 16); /* 16.16 format */
1727 avio_wb32(pb, b << 16); /* 16.16 format */
1728 avio_wb32(pb, 0); /* u in 2.30 format */
1729 avio_wb32(pb, c << 16); /* 16.16 format */
1730 avio_wb32(pb, d << 16); /* 16.16 format */
1731 avio_wb32(pb, 0); /* v in 2.30 format */
1732 avio_wb32(pb, tx << 16); /* 16.16 format */
1733 avio_wb32(pb, ty << 16); /* 16.16 format */
1734 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
1737 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1739 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1740 track->timescale, AV_ROUND_UP);
1741 int version = duration < INT32_MAX ? 0 : 1;
1744 if (track->mode == MODE_ISM)
1747 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1748 ffio_wfourcc(pb, "tkhd");
1749 avio_w8(pb, version);
1750 avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ?
1751 MOV_TKHD_FLAG_ENABLED | MOV_TKHD_FLAG_IN_MOVIE :
1752 MOV_TKHD_FLAG_IN_MOVIE);
1754 avio_wb64(pb, track->time);
1755 avio_wb64(pb, track->time);
1757 avio_wb32(pb, track->time); /* creation time */
1758 avio_wb32(pb, track->time); /* modification time */
1760 avio_wb32(pb, track->track_id); /* track-id */
1761 avio_wb32(pb, 0); /* reserved */
1763 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1765 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1767 avio_wb32(pb, 0); /* reserved */
1768 avio_wb32(pb, 0); /* reserved */
1769 avio_wb16(pb, 0); /* layer */
1770 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */
1771 /* Volume, only for audio */
1772 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1773 avio_wb16(pb, 0x0100);
1776 avio_wb16(pb, 0); /* reserved */
1778 /* Matrix structure */
1779 if (st && st->metadata) {
1780 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
1781 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
1783 if (rotation == 90) {
1784 write_matrix(pb, 0, 1, -1, 0, track->enc->height, 0);
1785 } else if (rotation == 180) {
1786 write_matrix(pb, -1, 0, 0, -1, track->enc->width, track->enc->height);
1787 } else if (rotation == 270) {
1788 write_matrix(pb, 0, -1, 1, 0, 0, track->enc->width);
1790 write_matrix(pb, 1, 0, 0, 1, 0, 0);
1792 /* Track width and height, for visual only */
1793 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1794 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1795 if (track->mode == MODE_MOV) {
1796 avio_wb32(pb, track->enc->width << 16);
1797 avio_wb32(pb, track->height << 16);
1799 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1800 if (!sample_aspect_ratio || track->height != track->enc->height)
1801 sample_aspect_ratio = 1;
1802 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1803 avio_wb32(pb, track->height * 0x10000);
1812 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1814 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1815 track->enc->sample_aspect_ratio.den);
1817 int64_t pos = avio_tell(pb);
1819 avio_wb32(pb, 0); /* size */
1820 ffio_wfourcc(pb, "tapt");
1823 ffio_wfourcc(pb, "clef");
1825 avio_wb32(pb, width << 16);
1826 avio_wb32(pb, track->enc->height << 16);
1829 ffio_wfourcc(pb, "prof");
1831 avio_wb32(pb, width << 16);
1832 avio_wb32(pb, track->enc->height << 16);
1835 ffio_wfourcc(pb, "enof");
1837 avio_wb32(pb, track->enc->width << 16);
1838 avio_wb32(pb, track->enc->height << 16);
1840 return update_size(pb, pos);
1843 // This box seems important for the psp playback ... without it the movie seems to hang
1844 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1846 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1847 track->timescale, AV_ROUND_UP);
1848 int version = duration < INT32_MAX ? 0 : 1;
1849 int entry_size, entry_count, size;
1850 int64_t delay, start_ct = track->cluster[0].cts;
1851 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1852 track->timescale, AV_ROUND_DOWN);
1853 version |= delay < INT32_MAX ? 0 : 1;
1855 entry_size = (version == 1) ? 20 : 12;
1856 entry_count = 1 + (delay > 0);
1857 size = 24 + entry_count * entry_size;
1859 /* write the atom data */
1860 avio_wb32(pb, size);
1861 ffio_wfourcc(pb, "edts");
1862 avio_wb32(pb, size - 8);
1863 ffio_wfourcc(pb, "elst");
1864 avio_w8(pb, version);
1865 avio_wb24(pb, 0); /* flags */
1867 avio_wb32(pb, entry_count);
1868 if (delay > 0) { /* add an empty edit to delay presentation */
1870 avio_wb64(pb, delay);
1873 avio_wb32(pb, delay);
1876 avio_wb32(pb, 0x00010000);
1878 av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
1879 start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
1885 avio_wb64(pb, duration);
1886 avio_wb64(pb, start_ct);
1888 avio_wb32(pb, duration);
1889 avio_wb32(pb, start_ct);
1891 avio_wb32(pb, 0x00010000);
1895 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1897 avio_wb32(pb, 20); // size
1898 ffio_wfourcc(pb, "tref");
1899 avio_wb32(pb, 12); // size (subatom)
1900 avio_wl32(pb, track->tref_tag);
1901 avio_wb32(pb, track->tref_id);
1905 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1906 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1908 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1909 ffio_wfourcc(pb, "uuid");
1910 ffio_wfourcc(pb, "USMT");
1911 avio_wb32(pb, 0x21d24fce);
1912 avio_wb32(pb, 0xbb88695c);
1913 avio_wb32(pb, 0xfac9c740);
1914 avio_wb32(pb, 0x1c); // another size here!
1915 ffio_wfourcc(pb, "MTDT");
1916 avio_wb32(pb, 0x00010012);
1917 avio_wb32(pb, 0x0a);
1918 avio_wb32(pb, 0x55c40000);
1924 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1926 AVFormatContext *ctx = track->rtp_ctx;
1927 char buf[1000] = "";
1930 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1931 NULL, NULL, 0, 0, ctx);
1932 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1935 avio_wb32(pb, len + 24);
1936 ffio_wfourcc(pb, "udta");
1937 avio_wb32(pb, len + 16);
1938 ffio_wfourcc(pb, "hnti");
1939 avio_wb32(pb, len + 8);
1940 ffio_wfourcc(pb, "sdp ");
1941 avio_write(pb, buf, len);
1945 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1946 MOVTrack *track, AVStream *st)
1948 int64_t pos = avio_tell(pb);
1949 avio_wb32(pb, 0); /* size */
1950 ffio_wfourcc(pb, "trak");
1951 mov_write_tkhd_tag(pb, track, st);
1952 if (supports_edts(mov))
1953 mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
1954 if (track->tref_tag)
1955 mov_write_tref_tag(pb, track);
1956 mov_write_mdia_tag(pb, track);
1957 if (track->mode == MODE_PSP)
1958 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1959 if (track->tag == MKTAG('r','t','p',' '))
1960 mov_write_udta_sdp(pb, track);
1961 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1962 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1963 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio)
1964 mov_write_tapt_tag(pb, track);
1966 return update_size(pb, pos);
1969 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1971 int i, has_audio = 0, has_video = 0;
1972 int64_t pos = avio_tell(pb);
1973 int audio_profile = mov->iods_audio_profile;
1974 int video_profile = mov->iods_video_profile;
1975 for (i = 0; i < mov->nb_streams; i++) {
1976 if (mov->tracks[i].entry > 0) {
1977 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1978 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1981 if (audio_profile < 0)
1982 audio_profile = 0xFF - has_audio;
1983 if (video_profile < 0)
1984 video_profile = 0xFF - has_video;
1985 avio_wb32(pb, 0x0); /* size */
1986 ffio_wfourcc(pb, "iods");
1987 avio_wb32(pb, 0); /* version & flags */
1988 put_descr(pb, 0x10, 7);
1989 avio_wb16(pb, 0x004f);
1992 avio_w8(pb, audio_profile);
1993 avio_w8(pb, video_profile);
1995 return update_size(pb, pos);
1998 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
2000 avio_wb32(pb, 0x20); /* size */
2001 ffio_wfourcc(pb, "trex");
2002 avio_wb32(pb, 0); /* version & flags */
2003 avio_wb32(pb, track->track_id); /* track ID */
2004 avio_wb32(pb, 1); /* default sample description index */
2005 avio_wb32(pb, 0); /* default sample duration */
2006 avio_wb32(pb, 0); /* default sample size */
2007 avio_wb32(pb, 0); /* default sample flags */
2011 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
2013 int64_t pos = avio_tell(pb);
2015 avio_wb32(pb, 0x0); /* size */
2016 ffio_wfourcc(pb, "mvex");
2017 for (i = 0; i < mov->nb_streams; i++)
2018 mov_write_trex_tag(pb, &mov->tracks[i]);
2019 return update_size(pb, pos);
2022 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2024 int max_track_id = 1, i;
2025 int64_t max_track_len_temp, max_track_len = 0;
2028 for (i = 0; i < mov->nb_streams; i++) {
2029 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
2030 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
2032 mov->tracks[i].timescale,
2034 if (max_track_len < max_track_len_temp)
2035 max_track_len = max_track_len_temp;
2036 if (max_track_id < mov->tracks[i].track_id)
2037 max_track_id = mov->tracks[i].track_id;
2041 version = max_track_len < UINT32_MAX ? 0 : 1;
2042 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
2043 ffio_wfourcc(pb, "mvhd");
2044 avio_w8(pb, version);
2045 avio_wb24(pb, 0); /* flags */
2047 avio_wb64(pb, mov->time);
2048 avio_wb64(pb, mov->time);
2050 avio_wb32(pb, mov->time); /* creation time */
2051 avio_wb32(pb, mov->time); /* modification time */
2053 avio_wb32(pb, MOV_TIMESCALE);
2054 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
2056 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
2057 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
2058 avio_wb16(pb, 0); /* reserved */
2059 avio_wb32(pb, 0); /* reserved */
2060 avio_wb32(pb, 0); /* reserved */
2062 /* Matrix structure */
2063 write_matrix(pb, 1, 0, 0, 1, 0, 0);
2065 avio_wb32(pb, 0); /* reserved (preview time) */
2066 avio_wb32(pb, 0); /* reserved (preview duration) */
2067 avio_wb32(pb, 0); /* reserved (poster time) */
2068 avio_wb32(pb, 0); /* reserved (selection time) */
2069 avio_wb32(pb, 0); /* reserved (selection duration) */
2070 avio_wb32(pb, 0); /* reserved (current time) */
2071 avio_wb32(pb, max_track_id + 1); /* Next track id */
2075 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
2078 avio_wb32(pb, 33); /* size */
2079 ffio_wfourcc(pb, "hdlr");
2082 ffio_wfourcc(pb, "mdir");
2083 ffio_wfourcc(pb, "appl");
2090 /* helper function to write a data tag with the specified string as data */
2091 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
2094 int size = 16 + strlen(data);
2095 avio_wb32(pb, size); /* size */
2096 ffio_wfourcc(pb, "data");
2099 avio_write(pb, data, strlen(data));
2103 lang = ff_mov_iso639_to_lang("und", 1);
2104 avio_wb16(pb, strlen(data)); /* string length */
2105 avio_wb16(pb, lang);
2106 avio_write(pb, data, strlen(data));
2107 return strlen(data) + 4;
2111 static int mov_write_string_tag(AVIOContext *pb, const char *name,
2112 const char *value, int lang, int long_style)
2115 if (value && value[0]) {
2116 int64_t pos = avio_tell(pb);
2117 avio_wb32(pb, 0); /* size */
2118 ffio_wfourcc(pb, name);
2119 mov_write_string_data_tag(pb, value, lang, long_style);
2120 size = update_size(pb, pos);
2125 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2126 const char *name, const char *tag,
2129 int l, lang = 0, len, len2;
2130 AVDictionaryEntry *t, *t2 = NULL;
2133 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2136 len = strlen(t->key);
2137 snprintf(tag2, sizeof(tag2), "%s-", tag);
2138 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2139 len2 = strlen(t2->key);
2140 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2141 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2146 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2149 /* iTunes bpm number */
2150 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
2152 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
2153 int size = 0, tmpo = t ? atoi(t->value) : 0;
2156 avio_wb32(pb, size);
2157 ffio_wfourcc(pb, "tmpo");
2158 avio_wb32(pb, size-8); /* size */
2159 ffio_wfourcc(pb, "data");
2160 avio_wb32(pb, 0x15); //type specifier
2162 avio_wb16(pb, tmpo); // data
2167 /* iTunes track or disc number */
2168 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2169 AVFormatContext *s, int disc)
2171 AVDictionaryEntry *t = av_dict_get(s->metadata,
2172 disc ? "disc" : "track",
2174 int size = 0, track = t ? atoi(t->value) : 0;
2177 char *slash = strchr(t->value, '/');
2179 tracks = atoi(slash + 1);
2180 avio_wb32(pb, 32); /* size */
2181 ffio_wfourcc(pb, disc ? "disk" : "trkn");
2182 avio_wb32(pb, 24); /* size */
2183 ffio_wfourcc(pb, "data");
2184 avio_wb32(pb, 0); // 8 bytes empty
2186 avio_wb16(pb, 0); // empty
2187 avio_wb16(pb, track); // track / disc number
2188 avio_wb16(pb, tracks); // total track / disc number
2189 avio_wb16(pb, 0); // empty
2195 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
2196 const char *name, const char *tag,
2199 AVDictionaryEntry *t = NULL;
2201 int size = 24 + len;
2203 if (len != 1 && len != 4)
2206 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2208 num = atoi(t->value);
2210 avio_wb32(pb, size);
2211 ffio_wfourcc(pb, name);
2212 avio_wb32(pb, size - 8);
2213 ffio_wfourcc(pb, "data");
2214 avio_wb32(pb, 0x15);
2216 if (len==4) avio_wb32(pb, num);
2217 else avio_w8 (pb, num);
2222 /* iTunes meta data list */
2223 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2226 int64_t pos = avio_tell(pb);
2227 avio_wb32(pb, 0); /* size */
2228 ffio_wfourcc(pb, "ilst");
2229 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2230 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2231 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2232 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2233 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2234 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2236 !mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2237 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2238 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2239 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2240 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2241 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2242 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2243 mov_write_string_metadata(s, pb, "desc", "description",1);
2244 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2245 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2246 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2247 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2248 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
2249 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
2250 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
2251 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
2252 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
2253 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
2254 mov_write_trkn_tag(pb, mov, s, 0); // track number
2255 mov_write_trkn_tag(pb, mov, s, 1); // disc number
2256 mov_write_tmpo_tag(pb, s);
2257 return update_size(pb, pos);
2260 /* iTunes meta data tag */
2261 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2265 int64_t pos = avio_tell(pb);
2266 avio_wb32(pb, 0); /* size */
2267 ffio_wfourcc(pb, "meta");
2269 mov_write_itunes_hdlr_tag(pb, mov, s);
2270 mov_write_ilst_tag(pb, mov, s);
2271 size = update_size(pb, pos);
2275 static int utf8len(const uint8_t *b)
2280 GET_UTF8(val, *b++, return -1;)
2286 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2290 GET_UTF8(val, *b++, return -1;)
2293 avio_wb16(pb, 0x00);
2297 static uint16_t language_code(const char *str)
2299 return (((str[0] - 0x60) & 0x1F) << 10) +
2300 (((str[1] - 0x60) & 0x1F) << 5) +
2301 (( str[2] - 0x60) & 0x1F);
2304 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2305 const char *tag, const char *str)
2307 int64_t pos = avio_tell(pb);
2308 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2309 if (!t || !utf8len(t->value))
2311 avio_wb32(pb, 0); /* size */
2312 ffio_wfourcc(pb, tag); /* type */
2313 avio_wb32(pb, 0); /* version + flags */
2314 if (!strcmp(tag, "yrrc"))
2315 avio_wb16(pb, atoi(t->value));
2317 avio_wb16(pb, language_code("eng")); /* language */
2318 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2319 if (!strcmp(tag, "albm") &&
2320 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2321 avio_w8(pb, atoi(t->value));
2323 return update_size(pb, pos);
2326 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2328 int64_t pos = avio_tell(pb);
2329 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2331 avio_wb32(pb, 0); // size
2332 ffio_wfourcc(pb, "chpl");
2333 avio_wb32(pb, 0x01000000); // version + flags
2334 avio_wb32(pb, 0); // unknown
2335 avio_w8(pb, nb_chapters);
2337 for (i = 0; i < nb_chapters; i++) {
2338 AVChapter *c = s->chapters[i];
2339 AVDictionaryEntry *t;
2340 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2342 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2343 int len = FFMIN(strlen(t->value), 255);
2345 avio_write(pb, t->value, len);
2349 return update_size(pb, pos);
2352 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2355 AVIOContext *pb_buf;
2359 ret = avio_open_dyn_buf(&pb_buf);
2363 if (mov->mode & MODE_3GP) {
2364 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2365 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2366 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2367 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2368 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2369 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2370 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2371 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2372 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2373 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2374 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2375 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2376 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2377 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2378 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2379 // currently ignored by mov.c
2380 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2381 // add support for libquicktime, this atom is also actually read by mov.c
2382 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
2383 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2384 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2386 /* iTunes meta data */
2387 mov_write_meta_tag(pb_buf, mov, s);
2391 mov_write_chpl_tag(pb_buf, s);
2393 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2394 avio_wb32(pb, size + 8);
2395 ffio_wfourcc(pb, "udta");
2396 avio_write(pb, buf, size);
2403 static void mov_write_psp_udta_tag(AVIOContext *pb,
2404 const char *str, const char *lang, int type)
2406 int len = utf8len(str) + 1;
2409 avio_wb16(pb, len * 2 + 10); /* size */
2410 avio_wb32(pb, type); /* type */
2411 avio_wb16(pb, language_code(lang)); /* language */
2412 avio_wb16(pb, 0x01); /* ? */
2413 ascii_to_wc(pb, str);
2416 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2418 MOVMuxContext *mov = s->priv_data;
2419 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2423 pos = avio_tell(pb);
2424 avio_wb32(pb, 0); /* size placeholder*/
2425 ffio_wfourcc(pb, "uuid");
2426 ffio_wfourcc(pb, "USMT");
2427 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2428 avio_wb32(pb, 0xbb88695c);
2429 avio_wb32(pb, 0xfac9c740);
2431 pos2 = avio_tell(pb);
2432 avio_wb32(pb, 0); /* size placeholder*/
2433 ffio_wfourcc(pb, "MTDT");
2437 avio_wb16(pb, 0x0C); /* size */
2438 avio_wb32(pb, 0x0B); /* type */
2439 avio_wb16(pb, language_code("und")); /* language */
2440 avio_wb16(pb, 0x0); /* ? */
2441 avio_wb16(pb, 0x021C); /* data */
2444 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2445 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2446 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2448 update_size(pb, pos2);
2449 return update_size(pb, pos);
2455 static void build_chunks(MOVTrack *trk)
2458 MOVIentry *chunk = &trk->cluster[0];
2459 uint64_t chunkSize = chunk->size;
2460 chunk->chunkNum = 1;
2461 if (trk->chunkCount)
2463 trk->chunkCount = 1;
2464 for (i = 1; i<trk->entry; i++){
2465 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
2466 chunkSize + trk->cluster[i].size < (1<<20)){
2467 chunkSize += trk->cluster[i].size;
2468 chunk->samples_in_chunk += trk->cluster[i].entries;
2470 trk->cluster[i].chunkNum = chunk->chunkNum+1;
2471 chunk=&trk->cluster[i];
2472 chunkSize = chunk->size;
2478 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2482 int64_t pos = avio_tell(pb);
2483 avio_wb32(pb, 0); /* size placeholder*/
2484 ffio_wfourcc(pb, "moov");
2486 for (i = 0; i < mov->nb_streams; i++) {
2487 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2490 mov->tracks[i].time = mov->time;
2491 mov->tracks[i].track_id = i + 1;
2493 if (mov->tracks[i].entry)
2494 build_chunks(&mov->tracks[i]);
2497 if (mov->chapter_track)
2498 for (i = 0; i < s->nb_streams; i++) {
2499 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2500 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2502 for (i = 0; i < mov->nb_streams; i++) {
2503 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2504 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2505 mov->tracks[i].tref_id =
2506 mov->tracks[mov->tracks[i].src_track].track_id;
2509 for (i = 0; i < mov->nb_streams; i++) {
2510 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
2511 int src_trk = mov->tracks[i].src_track;
2512 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
2513 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
2514 //src_trk may have a different timescale than the tmcd track
2515 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
2516 mov->tracks[i].timescale,
2517 mov->tracks[src_trk].timescale);
2521 mov_write_mvhd_tag(pb, mov);
2522 if (mov->mode != MODE_MOV && !mov->iods_skip)
2523 mov_write_iods_tag(pb, mov);
2524 for (i = 0; i < mov->nb_streams; i++) {
2525 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2526 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2529 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2530 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2532 if (mov->mode == MODE_PSP)
2533 mov_write_uuidusmt_tag(pb, s);
2535 mov_write_udta_tag(pb, mov, s);
2537 return update_size(pb, pos);
2540 static void param_write_int(AVIOContext *pb, const char *name, int value)
2542 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2545 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2547 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2550 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2553 len = FFMIN(sizeof(buf) / 2 - 1, len);
2554 ff_data_to_hex(buf, value, len, 0);
2555 buf[2 * len] = '\0';
2556 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2559 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2561 int64_t pos = avio_tell(pb);
2563 static const uint8_t uuid[] = {
2564 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2565 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2569 ffio_wfourcc(pb, "uuid");
2570 avio_write(pb, uuid, sizeof(uuid));
2573 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2574 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2575 avio_printf(pb, "<head>\n");
2577 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2579 avio_printf(pb, "</head>\n");
2580 avio_printf(pb, "<body>\n");
2581 avio_printf(pb, "<switch>\n");
2582 for (i = 0; i < mov->nb_streams; i++) {
2583 MOVTrack *track = &mov->tracks[i];
2585 /* track->track_id is initialized in write_moov, and thus isn't known
2587 int track_id = i + 1;
2589 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2591 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2596 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2597 track->enc->bit_rate);
2598 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2599 param_write_int(pb, "trackID", track_id);
2600 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2601 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2603 int size = track->enc->extradata_size;
2604 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2606 param_write_hex(pb, "CodecPrivateData",
2607 ptr ? ptr : track->enc->extradata,
2611 param_write_string(pb, "FourCC", "H264");
2612 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2613 param_write_string(pb, "FourCC", "WVC1");
2614 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2615 track->enc->extradata_size);
2617 param_write_int(pb, "MaxWidth", track->enc->width);
2618 param_write_int(pb, "MaxHeight", track->enc->height);
2619 param_write_int(pb, "DisplayWidth", track->enc->width);
2620 param_write_int(pb, "DisplayHeight", track->enc->height);
2622 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2623 param_write_string(pb, "FourCC", "AACL");
2624 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2625 param_write_string(pb, "FourCC", "WMAP");
2627 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2628 track->enc->extradata_size);
2629 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2630 track->enc->codec_id));
2631 param_write_int(pb, "Channels", track->enc->channels);
2632 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2633 param_write_int(pb, "BitsPerSample", 16);
2634 param_write_int(pb, "PacketSize", track->enc->block_align ?
2635 track->enc->block_align : 4);
2637 avio_printf(pb, "</%s>\n", type);
2639 avio_printf(pb, "</switch>\n");
2640 avio_printf(pb, "</body>\n");
2641 avio_printf(pb, "</smil>\n");
2643 return update_size(pb, pos);
2646 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2649 ffio_wfourcc(pb, "mfhd");
2651 avio_wb32(pb, mov->fragments);
2655 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2656 MOVTrack *track, int64_t moof_offset)
2658 int64_t pos = avio_tell(pb);
2659 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2660 MOV_TFHD_BASE_DATA_OFFSET;
2661 if (!track->entry) {
2662 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2664 flags |= MOV_TFHD_DEFAULT_FLAGS;
2666 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2667 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2669 /* Don't set a default sample size, the silverlight player refuses
2670 * to play files with that set. Don't set a default sample duration,
2671 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2672 * file format says it MUST NOT be set. */
2673 if (track->mode == MODE_ISM)
2674 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2675 MOV_TFHD_BASE_DATA_OFFSET);
2677 avio_wb32(pb, 0); /* size placeholder */
2678 ffio_wfourcc(pb, "tfhd");
2679 avio_w8(pb, 0); /* version */
2680 avio_wb24(pb, flags);
2682 avio_wb32(pb, track->track_id); /* track-id */
2683 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2684 avio_wb64(pb, moof_offset);
2685 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2686 track->default_duration = get_cluster_duration(track, 0);
2687 avio_wb32(pb, track->default_duration);
2689 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2690 track->default_size = track->entry ? track->cluster[0].size : 1;
2691 avio_wb32(pb, track->default_size);
2693 track->default_size = -1;
2695 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2696 track->default_sample_flags =
2697 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2698 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2699 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2700 avio_wb32(pb, track->default_sample_flags);
2703 return update_size(pb, pos);
2706 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2708 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2709 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2712 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2713 MOVTrack *track, int moof_size)
2715 int64_t pos = avio_tell(pb);
2716 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2719 for (i = 0; i < track->entry; i++) {
2720 if (get_cluster_duration(track, i) != track->default_duration)
2721 flags |= MOV_TRUN_SAMPLE_DURATION;
2722 if (track->cluster[i].size != track->default_size)
2723 flags |= MOV_TRUN_SAMPLE_SIZE;
2724 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2725 flags |= MOV_TRUN_SAMPLE_FLAGS;
2727 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2728 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2729 if (track->flags & MOV_TRACK_CTTS)
2730 flags |= MOV_TRUN_SAMPLE_CTS;
2732 avio_wb32(pb, 0); /* size placeholder */
2733 ffio_wfourcc(pb, "trun");
2734 avio_w8(pb, 0); /* version */
2735 avio_wb24(pb, flags);
2737 avio_wb32(pb, track->entry); /* sample count */
2738 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2739 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2740 track->track_id != 1)
2741 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2743 avio_wb32(pb, moof_size + 8 + track->data_offset +
2744 track->cluster[0].pos); /* data offset */
2745 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2746 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2748 for (i = 0; i < track->entry; i++) {
2749 if (flags & MOV_TRUN_SAMPLE_DURATION)
2750 avio_wb32(pb, get_cluster_duration(track, i));
2751 if (flags & MOV_TRUN_SAMPLE_SIZE)
2752 avio_wb32(pb, track->cluster[i].size);
2753 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2754 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2755 if (flags & MOV_TRUN_SAMPLE_CTS)
2756 avio_wb32(pb, track->cluster[i].cts);
2759 return update_size(pb, pos);
2762 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2764 int64_t pos = avio_tell(pb);
2765 static const uint8_t uuid[] = {
2766 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2767 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2770 avio_wb32(pb, 0); /* size placeholder */
2771 ffio_wfourcc(pb, "uuid");
2772 avio_write(pb, uuid, sizeof(uuid));
2775 avio_wb64(pb, track->frag_start);
2776 avio_wb64(pb, track->start_dts + track->track_duration -
2777 track->cluster[0].dts);
2779 return update_size(pb, pos);
2782 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2783 MOVTrack *track, int entry)
2785 int n = track->nb_frag_info - 1 - entry, i;
2786 int size = 8 + 16 + 4 + 1 + 16*n;
2787 static const uint8_t uuid[] = {
2788 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2789 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2795 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2796 avio_wb32(pb, size);
2797 ffio_wfourcc(pb, "uuid");
2798 avio_write(pb, uuid, sizeof(uuid));
2802 for (i = 0; i < n; i++) {
2803 int index = entry + 1 + i;
2804 avio_wb64(pb, track->frag_info[index].time);
2805 avio_wb64(pb, track->frag_info[index].duration);
2807 if (n < mov->ism_lookahead) {
2808 int free_size = 16 * (mov->ism_lookahead - n);
2809 avio_wb32(pb, free_size);
2810 ffio_wfourcc(pb, "free");
2811 ffio_fill(pb, 0, free_size - 8);
2817 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2820 int64_t pos = avio_tell(pb);
2822 for (i = 0; i < mov->ism_lookahead; i++) {
2823 /* Update the tfrf tag for the last ism_lookahead fragments,
2824 * nb_frag_info - 1 is the next fragment to be written. */
2825 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2827 avio_seek(pb, pos, SEEK_SET);
2831 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2832 MOVTrack *track, int64_t moof_offset,
2835 int64_t pos = avio_tell(pb);
2836 avio_wb32(pb, 0); /* size placeholder */
2837 ffio_wfourcc(pb, "traf");
2839 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2840 mov_write_trun_tag(pb, mov, track, moof_size);
2841 if (mov->mode == MODE_ISM) {
2842 mov_write_tfxd_tag(pb, track);
2844 if (mov->ism_lookahead) {
2845 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2847 track->tfrf_offset = avio_tell(pb);
2848 avio_wb32(pb, 8 + size);
2849 ffio_wfourcc(pb, "free");
2850 for (i = 0; i < size; i++)
2855 return update_size(pb, pos);
2858 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2859 int tracks, int moof_size)
2861 int64_t pos = avio_tell(pb);
2864 avio_wb32(pb, 0); /* size placeholder */
2865 ffio_wfourcc(pb, "moof");
2867 mov_write_mfhd_tag(pb, mov);
2868 for (i = 0; i < mov->nb_streams; i++) {
2869 MOVTrack *track = &mov->tracks[i];
2870 if (tracks >= 0 && i != tracks)
2874 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2877 return update_size(pb, pos);
2880 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2882 AVIOContext *avio_buf;
2885 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2887 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2888 moof_size = ffio_close_null_buf(avio_buf);
2889 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2892 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2894 int64_t pos = avio_tell(pb);
2897 avio_wb32(pb, 0); /* size placeholder */
2898 ffio_wfourcc(pb, "tfra");
2899 avio_w8(pb, 1); /* version */
2902 avio_wb32(pb, track->track_id);
2903 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2904 avio_wb32(pb, track->nb_frag_info);
2905 for (i = 0; i < track->nb_frag_info; i++) {
2906 avio_wb64(pb, track->frag_info[i].time);
2907 avio_wb64(pb, track->frag_info[i].offset);
2908 avio_w8(pb, 1); /* traf number */
2909 avio_w8(pb, 1); /* trun number */
2910 avio_w8(pb, 1); /* sample number */
2913 return update_size(pb, pos);
2916 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2918 int64_t pos = avio_tell(pb);
2921 avio_wb32(pb, 0); /* size placeholder */
2922 ffio_wfourcc(pb, "mfra");
2923 /* An empty mfra atom is enough to indicate to the publishing point that
2924 * the stream has ended. */
2925 if (mov->flags & FF_MOV_FLAG_ISML)
2926 return update_size(pb, pos);
2928 for (i = 0; i < mov->nb_streams; i++) {
2929 MOVTrack *track = &mov->tracks[i];
2930 if (track->nb_frag_info)
2931 mov_write_tfra_tag(pb, track);
2935 ffio_wfourcc(pb, "mfro");
2936 avio_wb32(pb, 0); /* version + flags */
2937 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2939 return update_size(pb, pos);
2942 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2944 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2945 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2947 mov->mdat_pos = avio_tell(pb);
2948 avio_wb32(pb, 0); /* size placeholder*/
2949 ffio_wfourcc(pb, "mdat");
2953 /* TODO: This needs to be more general */
2954 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2956 MOVMuxContext *mov = s->priv_data;
2957 int64_t pos = avio_tell(pb);
2958 int has_h264 = 0, has_video = 0;
2962 for (i = 0; i < s->nb_streams; i++) {
2963 AVStream *st = s->streams[i];
2964 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2966 if (st->codec->codec_id == AV_CODEC_ID_H264)
2970 avio_wb32(pb, 0); /* size */
2971 ffio_wfourcc(pb, "ftyp");
2973 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2974 ffio_wfourcc(pb, mov->major_brand);
2975 else if (mov->mode == MODE_3GP) {
2976 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2977 minor = has_h264 ? 0x100 : 0x200;
2978 } else if (mov->mode & MODE_3G2) {
2979 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2980 minor = has_h264 ? 0x20000 : 0x10000;
2981 } else if (mov->mode == MODE_PSP)
2982 ffio_wfourcc(pb, "MSNV");
2983 else if (mov->mode == MODE_MP4)
2984 ffio_wfourcc(pb, "isom");
2985 else if (mov->mode == MODE_IPOD)
2986 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2987 else if (mov->mode == MODE_ISM)
2988 ffio_wfourcc(pb, "isml");
2989 else if (mov->mode == MODE_F4V)
2990 ffio_wfourcc(pb, "f4v ");
2992 ffio_wfourcc(pb, "qt ");
2994 avio_wb32(pb, minor);
2996 if (mov->mode == MODE_MOV)
2997 ffio_wfourcc(pb, "qt ");
2998 else if (mov->mode == MODE_ISM) {
2999 ffio_wfourcc(pb, "piff");
3000 ffio_wfourcc(pb, "iso2");
3002 ffio_wfourcc(pb, "isom");
3003 ffio_wfourcc(pb, "iso2");
3005 ffio_wfourcc(pb, "avc1");
3008 if (mov->mode == MODE_3GP)
3009 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3010 else if (mov->mode & MODE_3G2)
3011 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3012 else if (mov->mode == MODE_PSP)
3013 ffio_wfourcc(pb, "MSNV");
3014 else if (mov->mode == MODE_MP4)
3015 ffio_wfourcc(pb, "mp41");
3016 return update_size(pb, pos);
3019 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3021 AVCodecContext *video_codec = s->streams[0]->codec;
3022 AVCodecContext *audio_codec = s->streams[1]->codec;
3023 int audio_rate = audio_codec->sample_rate;
3024 int frame_rate = ((video_codec->time_base.den) * (0x10000)) / (video_codec->time_base.num);
3025 int audio_kbitrate = audio_codec->bit_rate / 1000;
3026 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3028 avio_wb32(pb, 0x94); /* size */
3029 ffio_wfourcc(pb, "uuid");
3030 ffio_wfourcc(pb, "PROF");
3032 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3033 avio_wb32(pb, 0xbb88695c);
3034 avio_wb32(pb, 0xfac9c740);
3036 avio_wb32(pb, 0x0); /* ? */
3037 avio_wb32(pb, 0x3); /* 3 sections ? */
3039 avio_wb32(pb, 0x14); /* size */
3040 ffio_wfourcc(pb, "FPRF");
3041 avio_wb32(pb, 0x0); /* ? */
3042 avio_wb32(pb, 0x0); /* ? */
3043 avio_wb32(pb, 0x0); /* ? */
3045 avio_wb32(pb, 0x2c); /* size */
3046 ffio_wfourcc(pb, "APRF"); /* audio */
3048 avio_wb32(pb, 0x2); /* TrackID */
3049 ffio_wfourcc(pb, "mp4a");
3050 avio_wb32(pb, 0x20f);
3052 avio_wb32(pb, audio_kbitrate);
3053 avio_wb32(pb, audio_kbitrate);
3054 avio_wb32(pb, audio_rate);
3055 avio_wb32(pb, audio_codec->channels);
3057 avio_wb32(pb, 0x34); /* size */
3058 ffio_wfourcc(pb, "VPRF"); /* video */
3060 avio_wb32(pb, 0x1); /* TrackID */
3061 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3062 ffio_wfourcc(pb, "avc1");
3063 avio_wb16(pb, 0x014D);
3064 avio_wb16(pb, 0x0015);
3066 ffio_wfourcc(pb, "mp4v");
3067 avio_wb16(pb, 0x0000);
3068 avio_wb16(pb, 0x0103);
3071 avio_wb32(pb, video_kbitrate);
3072 avio_wb32(pb, video_kbitrate);
3073 avio_wb32(pb, frame_rate);
3074 avio_wb32(pb, frame_rate);
3075 avio_wb16(pb, video_codec->width);
3076 avio_wb16(pb, video_codec->height);
3077 avio_wb32(pb, 0x010001); /* ? */
3080 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3083 int i, closed_gop = 0;
3085 for (i = 0; i < pkt->size - 4; i++) {
3086 c = (c << 8) + pkt->data[i];
3087 if (c == 0x1b8) { // gop
3088 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3089 } else if (c == 0x100) { // pic
3090 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3091 if (!temp_ref || closed_gop) // I picture is not reordered
3092 *flags = MOV_SYNC_SAMPLE;
3094 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3101 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3103 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3104 int seq = 0, entry = 0;
3105 int key = pkt->flags & AV_PKT_FLAG_KEY;
3106 start = find_next_marker(pkt->data, end);
3107 for (next = start; next < end; start = next) {
3108 next = find_next_marker(start + 4, end);
3109 switch (AV_RB32(start)) {
3110 case VC1_CODE_SEQHDR:
3113 case VC1_CODE_ENTRYPOINT:
3116 case VC1_CODE_SLICE:
3117 trk->vc1_info.slices = 1;
3121 if (!trk->entry && !fragment) {
3122 /* First packet in first fragment */
3123 trk->vc1_info.first_packet_seq = seq;
3124 trk->vc1_info.first_packet_entry = entry;
3125 } else if ((seq && !trk->vc1_info.packet_seq) ||
3126 (entry && !trk->vc1_info.packet_entry)) {
3128 for (i = 0; i < trk->entry; i++)
3129 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3130 trk->has_keyframes = 0;
3132 trk->vc1_info.packet_seq = 1;
3134 trk->vc1_info.packet_entry = 1;
3136 /* First fragment */
3137 if ((!seq || trk->vc1_info.first_packet_seq) &&
3138 (!entry || trk->vc1_info.first_packet_entry)) {
3139 /* First packet had the same headers as this one, readd the
3140 * sync sample flag. */
3141 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3142 trk->has_keyframes = 1;
3146 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3148 else if (trk->vc1_info.packet_seq)
3150 else if (trk->vc1_info.packet_entry)
3153 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3154 trk->has_keyframes++;
3158 static int mov_flush_fragment(AVFormatContext *s)
3160 MOVMuxContext *mov = s->priv_data;
3161 int i, first_track = -1;
3162 int64_t mdat_size = 0;
3164 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3167 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3168 int64_t pos = avio_tell(s->pb);
3170 int buf_size, moov_size;
3172 for (i = 0; i < mov->nb_streams; i++)
3173 if (!mov->tracks[i].entry)
3175 /* Don't write the initial moov unless all tracks have data */
3176 if (i < mov->nb_streams)
3179 moov_size = get_moov_size(s);
3180 for (i = 0; i < mov->nb_streams; i++)
3181 mov->tracks[i].data_offset = pos + moov_size + 8;
3183 mov_write_moov_tag(s->pb, mov, s);
3185 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3186 mov->mdat_buf = NULL;
3187 avio_wb32(s->pb, buf_size + 8);
3188 ffio_wfourcc(s->pb, "mdat");
3189 avio_write(s->pb, buf, buf_size);
3194 for (i = 0; i < mov->nb_streams; i++) {
3195 if (mov->tracks[i].entry)
3196 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3197 mov->tracks[i].track_duration -
3198 mov->tracks[i].cluster[0].dts;
3199 mov->tracks[i].entry = 0;
3205 for (i = 0; i < mov->nb_streams; i++) {
3206 MOVTrack *track = &mov->tracks[i];
3207 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3208 track->data_offset = 0;
3210 track->data_offset = mdat_size;
3211 if (!track->mdat_buf)
3213 mdat_size += avio_tell(track->mdat_buf);
3214 if (first_track < 0)
3221 for (i = 0; i < mov->nb_streams; i++) {
3222 MOVTrack *track = &mov->tracks[i];
3223 int buf_size, write_moof = 1, moof_tracks = -1;
3225 int64_t duration = 0;
3228 duration = track->start_dts + track->track_duration -
3229 track->cluster[0].dts;
3230 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3231 if (!track->mdat_buf)
3233 mdat_size = avio_tell(track->mdat_buf);
3236 write_moof = i == first_track;
3240 MOVFragmentInfo *info;
3242 track->nb_frag_info++;
3243 if (track->nb_frag_info >= track->frag_info_capacity) {
3244 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3245 if (av_reallocp_array(&track->frag_info,
3247 sizeof(*track->frag_info)))
3248 return AVERROR(ENOMEM);
3249 track->frag_info_capacity = new_capacity;
3251 info = &track->frag_info[track->nb_frag_info - 1];
3252 info->offset = avio_tell(s->pb);
3253 info->time = mov->tracks[i].frag_start;
3254 info->duration = duration;
3255 mov_write_tfrf_tags(s->pb, mov, track);
3257 mov_write_moof_tag(s->pb, mov, moof_tracks);
3258 info->tfrf_offset = track->tfrf_offset;
3261 avio_wb32(s->pb, mdat_size + 8);
3262 ffio_wfourcc(s->pb, "mdat");
3266 track->frag_start += duration;
3268 if (!track->mdat_buf)
3270 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3271 track->mdat_buf = NULL;
3273 avio_write(s->pb, buf, buf_size);
3283 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3285 MOVMuxContext *mov = s->priv_data;
3286 AVIOContext *pb = s->pb;
3287 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3288 AVCodecContext *enc = trk->enc;
3289 unsigned int samples_in_chunk = 0;
3290 int size = pkt->size;
3291 uint8_t *reformatted_data = NULL;
3294 int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
3295 if (duration < 0 || duration > INT_MAX) {
3296 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
3300 pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
3301 pkt->pts = AV_NOPTS_VALUE;
3304 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3306 if (mov->fragments > 0) {
3307 if (!trk->mdat_buf) {
3308 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3313 if (!mov->mdat_buf) {
3314 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3321 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3322 /* We must find out how many AMR blocks there are in one packet */
3323 static uint16_t packed_size[16] =
3324 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3327 while (len < size && samples_in_chunk < 100) {
3328 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3331 if (samples_in_chunk > 1) {
3332 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3335 } else if (enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
3336 enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
3337 samples_in_chunk = enc->frame_size;
3338 } else if (trk->sample_size)
3339 samples_in_chunk = size / trk->sample_size;
3341 samples_in_chunk = 1;
3343 /* copy extradata if it exists */
3344 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3345 trk->vos_len = enc->extradata_size;
3346 trk->vos_data = av_malloc(trk->vos_len);
3347 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3350 if (enc->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
3351 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
3352 if (!s->streams[pkt->stream_index]->nb_frames) {
3353 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
3354 "use audio bitstream filter 'aac_adtstoasc' to fix it "
3355 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
3358 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
3360 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3361 /* from x264 or from bytestream h264 */
3362 /* nal reformating needed */
3363 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3364 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3366 avio_write(pb, reformatted_data, size);
3368 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3370 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3371 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3372 /* extradata is Annex B, assume the bitstream is too and convert it */
3373 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3374 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3375 avio_write(pb, reformatted_data, size);
3377 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3380 avio_write(pb, pkt->data, size);
3383 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3384 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3385 /* copy frame to create needed atoms */
3386 trk->vos_len = size;
3387 trk->vos_data = av_malloc(size);
3389 return AVERROR(ENOMEM);
3390 memcpy(trk->vos_data, pkt->data, size);
3393 if (trk->entry >= trk->cluster_capacity) {
3394 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3395 if (av_reallocp_array(&trk->cluster, new_capacity,
3396 sizeof(*trk->cluster)))
3397 return AVERROR(ENOMEM);
3398 trk->cluster_capacity = new_capacity;
3401 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3402 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3403 trk->cluster[trk->entry].chunkNum = 0;
3404 trk->cluster[trk->entry].size = size;
3405 trk->cluster[trk->entry].entries = samples_in_chunk;
3406 trk->cluster[trk->entry].dts = pkt->dts;
3407 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3408 /* First packet of a new fragment. We already wrote the duration
3409 * of the last packet of the previous fragment based on track_duration,
3410 * which might not exactly match our dts. Therefore adjust the dts
3411 * of this packet to be what the previous packets duration implies. */
3412 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3414 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
3415 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3417 if (trk->start_dts == AV_NOPTS_VALUE)
3418 trk->start_dts = pkt->dts;
3419 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3420 trk->last_sample_is_subtitle_end = 0;
3422 if (pkt->pts == AV_NOPTS_VALUE) {
3423 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3424 pkt->pts = pkt->dts;
3426 if (pkt->dts != pkt->pts)
3427 trk->flags |= MOV_TRACK_CTTS;
3428 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3429 trk->cluster[trk->entry].flags = 0;
3430 if (enc->codec_id == AV_CODEC_ID_VC1) {
3431 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3432 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3433 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3434 trk->entry > 0) { // force sync sample for the first key frame
3435 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3436 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3437 trk->flags |= MOV_TRACK_STPS;
3439 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3441 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3442 trk->has_keyframes++;
3445 trk->sample_count += samples_in_chunk;
3446 mov->mdat_size += size;
3448 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3449 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3450 reformatted_data, size);
3451 av_free(reformatted_data);
3455 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
3457 MOVMuxContext *mov = s->priv_data;
3458 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3459 AVCodecContext *enc = trk->enc;
3460 int64_t frag_duration = 0;
3461 int size = pkt->size;
3464 return 0; /* Discard 0 sized packets */
3466 if (trk->entry && pkt->stream_index < s->nb_streams)
3467 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3468 s->streams[pkt->stream_index]->time_base,
3470 if ((mov->max_fragment_duration &&
3471 frag_duration >= mov->max_fragment_duration) ||
3472 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3473 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3474 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3475 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3476 if (frag_duration >= mov->min_fragment_duration)
3477 mov_flush_fragment(s);
3480 return ff_mov_write_packet(s, pkt);
3483 static int mov_write_subtitle_end_packet(AVFormatContext *s,
3487 uint8_t data[2] = {0};
3490 av_init_packet(&end);
3491 end.size = sizeof(data);
3496 end.stream_index = stream_index;
3498 ret = mov_write_single_packet(s, &end);
3499 av_free_packet(&end);
3504 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3507 mov_flush_fragment(s);
3511 MOVMuxContext *mov = s->priv_data;
3513 if (!pkt->size) return 0; /* Discard 0 sized packets */
3516 * Subtitles require special handling.
3518 * 1) For full complaince, every track must have a sample at
3519 * dts == 0, which is rarely true for subtitles. So, as soon
3520 * as we see any packet with dts > 0, write an empty subtitle
3521 * at dts == 0 for any subtitle track with no samples in it.
3523 * 2) For each subtitle track, check if the current packet's
3524 * dts is past the duration of the last subtitle sample. If
3525 * so, we now need to write an end sample for that subtitle.
3527 * This must be done conditionally to allow for subtitles that
3528 * immediately replace each other, in which case an end sample
3529 * is not needed, and is, in fact, actively harmful.
3531 * 3) See mov_write_trailer for how the final end sample is
3534 for (i = 0; i < mov->nb_streams; i++) {
3535 MOVTrack *trk = &mov->tracks[i];
3538 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
3539 trk->track_duration < pkt->dts &&
3540 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
3541 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
3542 if (ret < 0) return ret;
3543 trk->last_sample_is_subtitle_end = 1;
3547 return mov_write_single_packet(s, pkt);
3551 // QuickTime chapters involve an additional text track with the chapter names
3552 // as samples, and a tref pointing from the other tracks to the chapter one.
3553 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3557 MOVMuxContext *mov = s->priv_data;
3558 MOVTrack *track = &mov->tracks[tracknum];
3559 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3562 track->mode = mov->mode;
3563 track->tag = MKTAG('t','e','x','t');
3564 track->timescale = MOV_TIMESCALE;
3565 track->enc = avcodec_alloc_context3(NULL);
3567 return AVERROR(ENOMEM);
3568 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3570 // These properties are required to make QT recognize the chapter track
3571 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3572 if (ff_alloc_extradata(track->enc, sizeof(chapter_properties)))
3573 return AVERROR(ENOMEM);
3574 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3576 if (avio_open_dyn_buf(&pb) >= 0) {
3580 /* Stub header (usually for Quicktime chapter track) */
3582 avio_wb32(pb, 0x01); // displayFlags
3583 avio_w8(pb, 0x00); // horizontal justification
3584 avio_w8(pb, 0x00); // vertical justification
3585 avio_w8(pb, 0x00); // bgColourRed
3586 avio_w8(pb, 0x00); // bgColourGreen
3587 avio_w8(pb, 0x00); // bgColourBlue
3588 avio_w8(pb, 0x00); // bgColourAlpha
3590 avio_wb16(pb, 0x00); // defTextBoxTop
3591 avio_wb16(pb, 0x00); // defTextBoxLeft
3592 avio_wb16(pb, 0x00); // defTextBoxBottom
3593 avio_wb16(pb, 0x00); // defTextBoxRight
3595 avio_wb16(pb, 0x00); // startChar
3596 avio_wb16(pb, 0x00); // endChar
3597 avio_wb16(pb, 0x01); // fontID
3598 avio_w8(pb, 0x00); // fontStyleFlags
3599 avio_w8(pb, 0x00); // fontSize
3600 avio_w8(pb, 0x00); // fgColourRed
3601 avio_w8(pb, 0x00); // fgColourGreen
3602 avio_w8(pb, 0x00); // fgColourBlue
3603 avio_w8(pb, 0x00); // fgColourAlpha
3605 avio_wb32(pb, 0x0D); // box size
3606 ffio_wfourcc(pb, "ftab"); // box atom name
3607 avio_wb16(pb, 0x01); // entry count
3609 avio_wb16(pb, 0x01); // font ID
3610 avio_w8(pb, 0x00); // font name length
3612 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
3613 track->enc->extradata = buf;
3614 track->enc->extradata_size = size;
3621 for (i = 0; i < s->nb_chapters; i++) {
3622 AVChapter *c = s->chapters[i];
3623 AVDictionaryEntry *t;
3625 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3626 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3627 pkt.duration = end - pkt.dts;
3629 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3630 len = strlen(t->value);
3632 pkt.data = av_malloc(pkt.size);
3634 return AVERROR(ENOMEM);
3635 AV_WB16(pkt.data, len);
3636 memcpy(pkt.data + 2, t->value, len);
3637 ff_mov_write_packet(s, &pkt);
3638 av_freep(&pkt.data);
3645 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, const char *tcstr)
3648 MOVMuxContext *mov = s->priv_data;
3649 MOVTrack *track = &mov->tracks[index];
3650 AVStream *src_st = s->streams[src_index];
3652 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
3653 AVRational rate = find_fps(s, src_st);
3655 /* compute the frame number */
3656 ret = av_timecode_init_from_string(&tc, rate, tcstr, s);
3660 /* tmcd track based on video stream */
3661 track->mode = mov->mode;
3662 track->tag = MKTAG('t','m','c','d');
3663 track->src_track = src_index;
3664 track->timescale = mov->tracks[src_index].timescale;
3665 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
3666 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
3668 /* encode context: tmcd data stream */
3669 track->enc = avcodec_alloc_context3(NULL);
3670 track->enc->codec_type = AVMEDIA_TYPE_DATA;
3671 track->enc->codec_tag = track->tag;
3672 track->enc->time_base = av_inv_q(rate);
3674 /* the tmcd track just contains one packet with the frame number */
3675 pkt.data = av_malloc(pkt.size);
3676 AV_WB32(pkt.data, tc.start);
3677 ret = ff_mov_write_packet(s, &pkt);
3683 * st->disposition controls the "enabled" flag in the tkhd tag.
3684 * QuickTime will not play a track if it is not enabled. So make sure
3685 * that one track of each type (audio, video, subtitle) is enabled.
3687 * Subtitles are special. For audio and video, setting "enabled" also
3688 * makes the track "default" (i.e. it is rendered when played). For
3689 * subtitles, an "enabled" subtitle is not rendered by default, but
3690 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3693 static void enable_tracks(AVFormatContext *s)
3695 MOVMuxContext *mov = s->priv_data;
3697 uint8_t enabled[AVMEDIA_TYPE_NB];
3698 int first[AVMEDIA_TYPE_NB];
3700 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3705 for (i = 0; i < s->nb_streams; i++) {
3706 AVStream *st = s->streams[i];
3708 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3709 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3712 if (first[st->codec->codec_type] < 0)
3713 first[st->codec->codec_type] = i;
3714 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3715 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3716 enabled[st->codec->codec_type] = 1;
3720 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3722 case AVMEDIA_TYPE_VIDEO:
3723 case AVMEDIA_TYPE_AUDIO:
3724 case AVMEDIA_TYPE_SUBTITLE:
3725 if (!enabled[i] && first[i] >= 0)
3726 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3732 static void mov_free(AVFormatContext *s)
3734 MOVMuxContext *mov = s->priv_data;
3737 if (mov->chapter_track) {
3738 if (mov->tracks[mov->chapter_track].enc)
3739 av_freep(&mov->tracks[mov->chapter_track].enc->extradata);
3740 av_freep(&mov->tracks[mov->chapter_track].enc);
3743 for (i = 0; i < mov->nb_streams; i++) {
3744 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3745 ff_mov_close_hinting(&mov->tracks[i]);
3746 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
3747 av_freep(&mov->tracks[i].enc);
3748 av_freep(&mov->tracks[i].cluster);
3749 av_freep(&mov->tracks[i].frag_info);
3751 if (mov->tracks[i].vos_len)
3752 av_freep(&mov->tracks[i].vos_data);
3755 av_freep(&mov->tracks);
3758 static uint32_t rgb_to_yuv(uint32_t rgb)
3763 r = (rgb >> 16) & 0xFF;
3764 g = (rgb >> 8) & 0xFF;
3767 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3768 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3769 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3771 return (y << 16) | (cr << 8) | cb;
3774 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3777 int i, width = 720, height = 480;
3778 int have_palette = 0, have_size = 0;
3779 uint32_t palette[16];
3780 char *cur = st->codec->extradata;
3782 while (cur && *cur) {
3783 if (strncmp("palette:", cur, 8) == 0) {
3785 count = sscanf(cur + 8,
3786 "%06x, %06x, %06x, %06x, %06x, %06x, %06x, %06x, "
3787 "%06x, %06x, %06x, %06x, %06x, %06x, %06x, %06x",
3788 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3789 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3790 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3791 &palette[12], &palette[13], &palette[14], &palette[15]);
3793 for (i = 0; i < count; i++) {
3794 palette[i] = rgb_to_yuv(palette[i]);
3797 } else if (!strncmp("size:", cur, 5)) {
3798 sscanf(cur + 5, "%dx%d", &width, &height);
3801 if (have_palette && have_size)
3803 cur += strcspn(cur, "\n\r");
3804 cur += strspn(cur, "\n\r");
3807 track->vos_data = av_malloc(16*4);
3808 if (!track->vos_data)
3809 return AVERROR(ENOMEM);
3810 for (i = 0; i < 16; i++) {
3811 AV_WB32(track->vos_data + i * 4, palette[i]);
3813 track->vos_len = 16 * 4;
3815 st->codec->width = width;
3816 st->codec->height = track->height = height;
3821 static int mov_write_header(AVFormatContext *s)
3823 AVIOContext *pb = s->pb;
3824 MOVMuxContext *mov = s->priv_data;
3825 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
3826 int i, ret, hint_track = 0, tmcd_track = 0;
3828 /* Default mode == MP4 */
3829 mov->mode = MODE_MP4;
3831 if (s->oformat != NULL) {
3832 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3833 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3834 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3835 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3836 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3837 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3838 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3841 for (i = 0; i < s->nb_streams; i++)
3842 if (s->streams[i]->codec->flags & CODEC_FLAG_BITEXACT)
3845 /* Set the FRAGMENT flag if any of the fragmentation methods are
3847 if (mov->max_fragment_duration || mov->max_fragment_size ||
3848 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3849 FF_MOV_FLAG_FRAG_KEYFRAME |
3850 FF_MOV_FLAG_FRAG_CUSTOM))
3851 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3853 /* Set other implicit flags immediately */
3854 if (mov->mode == MODE_ISM)
3855 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3856 FF_MOV_FLAG_FRAGMENT;
3858 /* faststart: moov at the beginning of the file, if supported */
3859 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3860 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3861 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3862 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3863 "with fragmentation and custom IO, disabling faststart\n");
3864 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3866 mov->reserved_moov_size = -1;
3869 if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
3870 s->avoid_negative_ts = 2;
3873 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3874 * is enabled, we don't support non-seekable output at all. */
3875 if (!s->pb->seekable &&
3876 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3877 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3878 return AVERROR(EINVAL);
3881 mov_write_ftyp_tag(pb,s);
3882 if (mov->mode == MODE_PSP) {
3883 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
3884 for (i = 0; i < s->nb_streams; i++) {
3885 AVStream *st = s->streams[i];
3886 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
3888 else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
3894 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
3895 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3896 return AVERROR(EINVAL);
3898 mov_write_uuidprof_tag(pb, s);
3901 mov->nb_streams = s->nb_streams;
3902 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3903 mov->chapter_track = mov->nb_streams++;
3905 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3906 /* Add hint tracks for each audio and video stream */
3907 hint_track = mov->nb_streams;
3908 for (i = 0; i < s->nb_streams; i++) {
3909 AVStream *st = s->streams[i];
3910 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3911 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3917 if (mov->mode == MODE_MOV) {
3918 tmcd_track = mov->nb_streams;
3920 /* +1 tmcd track for each video stream with a timecode */
3921 for (i = 0; i < s->nb_streams; i++) {
3922 AVStream *st = s->streams[i];
3923 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
3924 (global_tcr || av_dict_get(st->metadata, "timecode", NULL, 0)))
3925 mov->nb_meta_tmcd++;
3928 /* check if there is already a tmcd track to remux */
3929 if (mov->nb_meta_tmcd) {
3930 for (i = 0; i < s->nb_streams; i++) {
3931 AVStream *st = s->streams[i];
3932 if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
3933 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
3934 "so timecode metadata are now ignored\n");
3935 mov->nb_meta_tmcd = 0;
3940 mov->nb_streams += mov->nb_meta_tmcd;
3943 // Reserve an extra stream for chapters for the case where chapters
3944 // are written in the trailer
3945 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3947 return AVERROR(ENOMEM);
3949 for (i = 0; i < s->nb_streams; i++) {
3950 AVStream *st= s->streams[i];
3951 MOVTrack *track= &mov->tracks[i];
3952 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3954 track->enc = st->codec;
3956 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3957 if (track->language < 0)
3958 track->language = 0;
3959 track->mode = mov->mode;
3960 track->tag = mov_find_codec_tag(s, track);
3962 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
3963 "codec not currently supported in container\n",
3964 avcodec_get_name(st->codec->codec_id), i);
3965 ret = AVERROR(EINVAL);
3968 /* If hinting of this track is enabled by a later hint track,
3969 * this is updated. */
3970 track->hint_track = -1;
3971 track->start_dts = AV_NOPTS_VALUE;
3972 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3973 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3974 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3975 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3976 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3977 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3978 ret = AVERROR(EINVAL);
3981 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3983 if (mov->video_track_timescale) {
3984 track->timescale = mov->video_track_timescale;
3986 track->timescale = st->codec->time_base.den;
3987 while(track->timescale < 10000)
3988 track->timescale *= 2;
3990 if (track->mode == MODE_MOV && track->timescale > 100000)
3991 av_log(s, AV_LOG_WARNING,
3992 "WARNING codec timebase is very high. If duration is too long,\n"
3993 "file may not be playable by quicktime. Specify a shorter timebase\n"
3994 "or choose different container.\n");
3995 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3996 track->timescale = st->codec->sample_rate;
3997 if (!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
3998 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
3999 track->audio_vbr = 1;
4000 }else if (st->codec->codec_id == AV_CODEC_ID_ADPCM_MS ||
4001 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
4002 st->codec->codec_id == AV_CODEC_ID_ILBC){
4003 if (!st->codec->block_align) {
4004 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
4005 ret = AVERROR(EINVAL);
4008 track->sample_size = st->codec->block_align;
4009 }else if (st->codec->frame_size > 1){ /* assume compressed audio */
4010 track->audio_vbr = 1;
4012 track->sample_size = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
4014 if (st->codec->codec_id == AV_CODEC_ID_ILBC ||
4015 st->codec->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
4016 track->audio_vbr = 1;
4018 if (track->mode != MODE_MOV &&
4019 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4020 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4021 i, track->enc->sample_rate);
4022 ret = AVERROR(EINVAL);
4025 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4026 track->timescale = st->codec->time_base.den;
4027 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4028 track->timescale = st->codec->time_base.den;
4030 track->timescale = MOV_TIMESCALE;
4033 track->height = st->codec->height;
4034 /* The ism specific timescale isn't mandatory, but is assumed by
4035 * some tools, such as mp4split. */
4036 if (mov->mode == MODE_ISM)
4037 track->timescale = 10000000;
4039 avpriv_set_pts_info(st, 64, 1, track->timescale);
4041 /* copy extradata if it exists */
4042 if (st->codec->extradata_size) {
4043 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4044 mov_create_dvd_sub_decoder_specific_info(track, st);
4046 track->vos_len = st->codec->extradata_size;
4047 track->vos_data = av_malloc(track->vos_len);
4048 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4056 if (mov->reserved_moov_size){
4057 mov->reserved_moov_pos= avio_tell(pb);
4058 if (mov->reserved_moov_size > 0)
4059 avio_skip(pb, mov->reserved_moov_size);
4062 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4063 /* If no fragmentation options have been set, set a default. */
4064 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4065 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4066 !mov->max_fragment_duration && !mov->max_fragment_size)
4067 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4069 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4070 mov->reserved_moov_pos = avio_tell(pb);
4071 mov_write_mdat_tag(pb, mov);
4074 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4075 mov->time = ff_iso8601_to_unix_time(t->value);
4077 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4079 if (mov->chapter_track)
4080 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4083 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4084 /* Initialize the hint tracks for each audio and video stream */
4085 for (i = 0; i < s->nb_streams; i++) {
4086 AVStream *st = s->streams[i];
4087 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4088 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4089 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
4096 if (mov->nb_meta_tmcd) {
4097 /* Initialize the tmcd tracks */
4098 for (i = 0; i < s->nb_streams; i++) {
4099 AVStream *st = s->streams[i];
4102 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
4104 t = av_dict_get(st->metadata, "timecode", NULL, 0);
4107 if ((ret = mov_create_timecode_track(s, tmcd_track, i, t->value)) < 0)
4116 if (mov->flags & FF_MOV_FLAG_ISML)
4117 mov_write_isml_manifest(pb, mov);
4119 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
4120 mov_write_moov_tag(pb, mov, s);
4130 static int get_moov_size(AVFormatContext *s)
4133 AVIOContext *moov_buf;
4134 MOVMuxContext *mov = s->priv_data;
4136 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4138 mov_write_moov_tag(moov_buf, mov, s);
4139 return ffio_close_null_buf(moov_buf);
4143 * This function gets the moov size if moved to the top of the file: the chunk
4144 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4145 * entries) when the moov is moved to the beginning, so the size of the moov
4146 * would change. It also updates the chunk offset tables.
4148 static int compute_moov_size(AVFormatContext *s)
4150 int i, moov_size, moov_size2;
4151 MOVMuxContext *mov = s->priv_data;
4153 moov_size = get_moov_size(s);
4157 for (i = 0; i < mov->nb_streams; i++)
4158 mov->tracks[i].data_offset += moov_size;
4160 moov_size2 = get_moov_size(s);
4164 /* if the size changed, we just switched from stco to co64 and need to
4165 * update the offsets */
4166 if (moov_size2 != moov_size)
4167 for (i = 0; i < mov->nb_streams; i++)
4168 mov->tracks[i].data_offset += moov_size2 - moov_size;
4173 static int shift_data(AVFormatContext *s)
4175 int ret = 0, moov_size;
4176 MOVMuxContext *mov = s->priv_data;
4177 int64_t pos, pos_end = avio_tell(s->pb);
4178 uint8_t *buf, *read_buf[2];
4179 int read_buf_id = 0;
4181 AVIOContext *read_pb;
4183 moov_size = compute_moov_size(s);
4187 buf = av_malloc(moov_size * 2);
4189 return AVERROR(ENOMEM);
4191 read_buf[1] = buf + moov_size;
4193 /* Shift the data: the AVIO context of the output can only be used for
4194 * writing, so we re-open the same output, but for reading. It also avoids
4195 * a read/seek/write/seek back and forth. */
4197 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4199 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4200 "the second pass (faststart)\n", s->filename);
4204 /* mark the end of the shift to up to the last data we wrote, and get ready
4206 pos_end = avio_tell(s->pb);
4207 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
4209 /* start reading at where the new moov will be placed */
4210 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
4211 pos = avio_tell(read_pb);
4213 #define READ_BLOCK do { \
4214 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4218 /* shift data by chunk of at most moov_size */
4223 n = read_size[read_buf_id];
4226 avio_write(s->pb, read_buf[read_buf_id], n);
4228 } while (pos < pos_end);
4229 avio_close(read_pb);
4236 static int mov_write_trailer(AVFormatContext *s)
4238 MOVMuxContext *mov = s->priv_data;
4239 AVIOContext *pb = s->pb;
4245 * Before actually writing the trailer, make sure that there are no
4246 * dangling subtitles, that need a terminating sample.
4248 for (i = 0; i < mov->nb_streams; i++) {
4249 MOVTrack *trk = &mov->tracks[i];
4250 if (trk->enc->codec_id == AV_CODEC_ID_MOV_TEXT &&
4251 !trk->last_sample_is_subtitle_end) {
4252 mov_write_subtitle_end_packet(s, i, trk->track_duration);
4253 trk->last_sample_is_subtitle_end = 1;
4257 // If there were no chapters when the header was written, but there
4258 // are chapters now, write them in the trailer. This only works
4259 // when we are not doing fragments.
4260 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4261 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4262 mov->chapter_track = mov->nb_streams++;
4263 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4268 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4269 moov_pos = avio_tell(pb);
4271 /* Write size of mdat tag */
4272 if (mov->mdat_size + 8 <= UINT32_MAX) {
4273 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4274 avio_wb32(pb, mov->mdat_size + 8);
4276 /* overwrite 'wide' placeholder atom */
4277 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4278 /* special value: real atom size will be 64 bit value after
4281 ffio_wfourcc(pb, "mdat");
4282 avio_wb64(pb, mov->mdat_size + 16);
4284 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
4286 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4287 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4288 res = shift_data(s);
4290 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
4291 mov_write_moov_tag(pb, mov, s);
4293 } else if (mov->reserved_moov_size > 0) {
4295 mov_write_moov_tag(pb, mov, s);
4296 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
4298 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
4301 avio_wb32(pb, size);
4302 ffio_wfourcc(pb, "free");
4303 for (i = 0; i < size; i++)
4305 avio_seek(pb, moov_pos, SEEK_SET);
4307 mov_write_moov_tag(pb, mov, s);
4310 mov_flush_fragment(s);
4311 mov_write_mfra_tag(pb, mov);
4314 for (i = 0; i < mov->nb_streams; i++) {
4315 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4316 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4317 int64_t off = avio_tell(pb);
4319 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4320 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4321 avio_write(pb, buf, 7);
4322 avio_seek(pb, off, SEEK_SET);
4333 #if CONFIG_MOV_MUXER
4335 AVOutputFormat ff_mov_muxer = {
4337 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4338 .extensions = "mov",
4339 .priv_data_size = sizeof(MOVMuxContext),
4340 .audio_codec = AV_CODEC_ID_AAC,
4341 .video_codec = CONFIG_LIBX264_ENCODER ?
4342 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4343 .write_header = mov_write_header,
4344 .write_packet = mov_write_packet,
4345 .write_trailer = mov_write_trailer,
4346 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4347 .codec_tag = (const AVCodecTag* const []){
4348 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4350 .priv_class = &mov_muxer_class,
4353 #if CONFIG_TGP_MUXER
4355 AVOutputFormat ff_tgp_muxer = {
4357 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4358 .extensions = "3gp",
4359 .priv_data_size = sizeof(MOVMuxContext),
4360 .audio_codec = AV_CODEC_ID_AMR_NB,
4361 .video_codec = AV_CODEC_ID_H263,
4362 .write_header = mov_write_header,
4363 .write_packet = mov_write_packet,
4364 .write_trailer = mov_write_trailer,
4365 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4366 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4367 .priv_class = &tgp_muxer_class,
4370 #if CONFIG_MP4_MUXER
4372 AVOutputFormat ff_mp4_muxer = {
4374 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4375 .mime_type = "application/mp4",
4376 .extensions = "mp4",
4377 .priv_data_size = sizeof(MOVMuxContext),
4378 .audio_codec = AV_CODEC_ID_AAC,
4379 .video_codec = CONFIG_LIBX264_ENCODER ?
4380 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4381 .write_header = mov_write_header,
4382 .write_packet = mov_write_packet,
4383 .write_trailer = mov_write_trailer,
4384 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4385 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4386 .priv_class = &mp4_muxer_class,
4389 #if CONFIG_PSP_MUXER
4391 AVOutputFormat ff_psp_muxer = {
4393 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4394 .extensions = "mp4,psp",
4395 .priv_data_size = sizeof(MOVMuxContext),
4396 .audio_codec = AV_CODEC_ID_AAC,
4397 .video_codec = CONFIG_LIBX264_ENCODER ?
4398 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4399 .write_header = mov_write_header,
4400 .write_packet = mov_write_packet,
4401 .write_trailer = mov_write_trailer,
4402 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4403 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4404 .priv_class = &psp_muxer_class,
4407 #if CONFIG_TG2_MUXER
4409 AVOutputFormat ff_tg2_muxer = {
4411 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4412 .extensions = "3g2",
4413 .priv_data_size = sizeof(MOVMuxContext),
4414 .audio_codec = AV_CODEC_ID_AMR_NB,
4415 .video_codec = AV_CODEC_ID_H263,
4416 .write_header = mov_write_header,
4417 .write_packet = mov_write_packet,
4418 .write_trailer = mov_write_trailer,
4419 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4420 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4421 .priv_class = &tg2_muxer_class,
4424 #if CONFIG_IPOD_MUXER
4426 AVOutputFormat ff_ipod_muxer = {
4428 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4429 .mime_type = "application/mp4",
4430 .extensions = "m4v,m4a",
4431 .priv_data_size = sizeof(MOVMuxContext),
4432 .audio_codec = AV_CODEC_ID_AAC,
4433 .video_codec = AV_CODEC_ID_H264,
4434 .write_header = mov_write_header,
4435 .write_packet = mov_write_packet,
4436 .write_trailer = mov_write_trailer,
4437 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4438 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4439 .priv_class = &ipod_muxer_class,
4442 #if CONFIG_ISMV_MUXER
4444 AVOutputFormat ff_ismv_muxer = {
4446 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4447 .mime_type = "application/mp4",
4448 .extensions = "ismv,isma",
4449 .priv_data_size = sizeof(MOVMuxContext),
4450 .audio_codec = AV_CODEC_ID_AAC,
4451 .video_codec = AV_CODEC_ID_H264,
4452 .write_header = mov_write_header,
4453 .write_packet = mov_write_packet,
4454 .write_trailer = mov_write_trailer,
4455 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4456 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4457 .priv_class = &ismv_muxer_class,
4460 #if CONFIG_F4V_MUXER
4462 AVOutputFormat ff_f4v_muxer = {
4464 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4465 .mime_type = "application/f4v",
4466 .extensions = "f4v",
4467 .priv_data_size = sizeof(MOVMuxContext),
4468 .audio_codec = AV_CODEC_ID_AAC,
4469 .video_codec = AV_CODEC_ID_H264,
4470 .write_header = mov_write_header,
4471 .write_packet = mov_write_packet,
4472 .write_trailer = mov_write_trailer,
4473 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
4474 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4475 .priv_class = &f4v_muxer_class,