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 Libav.
9 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/dict.h"
50 static const AVOption options[] = {
51 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "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 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
63 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
64 { "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},
65 { "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},
66 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
67 { "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},
68 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69 { "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},
70 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
71 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
75 #define MOV_CLASS(flavor)\
76 static const AVClass flavor ## _muxer_class = {\
77 .class_name = #flavor " muxer",\
78 .item_name = av_default_item_name,\
80 .version = LIBAVUTIL_VERSION_INT,\
83 static int utf8len(const uint8_t *b)
88 GET_UTF8(val, *b++, return -1;)
94 //FIXME support 64 bit variant with wide placeholders
95 static int64_t update_size(AVIOContext *pb, int64_t pos)
97 int64_t curpos = avio_tell(pb);
98 avio_seek(pb, pos, SEEK_SET);
99 avio_wb32(pb, curpos - pos); /* rewrite size */
100 avio_seek(pb, curpos, SEEK_SET);
105 static int co64_required(const MOVTrack *track)
107 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
112 /* Chunk offset atom */
113 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
116 int mode64 = co64_required(track); // use 32 bit size variant if possible
117 int64_t pos = avio_tell(pb);
118 avio_wb32(pb, 0); /* size */
120 ffio_wfourcc(pb, "co64");
122 ffio_wfourcc(pb, "stco");
123 avio_wb32(pb, 0); /* version & flags */
124 avio_wb32(pb, track->entry); /* entry count */
125 for (i = 0; i < track->entry; i++) {
127 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
129 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
131 return update_size(pb, pos);
134 /* Sample size atom */
135 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
138 int i, j, entries = 0, tst = -1, oldtst = -1;
140 int64_t pos = avio_tell(pb);
141 avio_wb32(pb, 0); /* size */
142 ffio_wfourcc(pb, "stsz");
143 avio_wb32(pb, 0); /* version & flags */
145 for (i = 0; i < track->entry; i++) {
146 tst = track->cluster[i].size / track->cluster[i].entries;
147 if (oldtst != -1 && tst != oldtst)
150 entries += track->cluster[i].entries;
152 if (equalChunks && track->entry) {
153 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
154 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
155 avio_wb32(pb, sSize); // sample size
156 avio_wb32(pb, entries); // sample count
158 avio_wb32(pb, 0); // sample size
159 avio_wb32(pb, entries); // sample count
160 for (i = 0; i < track->entry; i++) {
161 for (j = 0; j < track->cluster[i].entries; j++) {
162 avio_wb32(pb, track->cluster[i].size /
163 track->cluster[i].entries);
167 return update_size(pb, pos);
170 /* Sample to chunk atom */
171 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
173 int index = 0, oldval = -1, i;
174 int64_t entryPos, curpos;
176 int64_t pos = avio_tell(pb);
177 avio_wb32(pb, 0); /* size */
178 ffio_wfourcc(pb, "stsc");
179 avio_wb32(pb, 0); // version & flags
180 entryPos = avio_tell(pb);
181 avio_wb32(pb, track->entry); // entry count
182 for (i = 0; i < track->entry; i++) {
183 if (oldval != track->cluster[i].samples_in_chunk) {
184 avio_wb32(pb, i + 1); // first chunk
185 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
186 avio_wb32(pb, 0x1); // sample description index
187 oldval = track->cluster[i].samples_in_chunk;
191 curpos = avio_tell(pb);
192 avio_seek(pb, entryPos, SEEK_SET);
193 avio_wb32(pb, index); // rewrite size
194 avio_seek(pb, curpos, SEEK_SET);
196 return update_size(pb, pos);
199 /* Sync sample atom */
200 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
202 int64_t curpos, entryPos;
204 int64_t pos = avio_tell(pb);
205 avio_wb32(pb, 0); // size
206 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
207 avio_wb32(pb, 0); // version & flags
208 entryPos = avio_tell(pb);
209 avio_wb32(pb, track->entry); // entry count
210 for (i = 0; i < track->entry; i++) {
211 if (track->cluster[i].flags & flag) {
212 avio_wb32(pb, i + 1);
216 curpos = avio_tell(pb);
217 avio_seek(pb, entryPos, SEEK_SET);
218 avio_wb32(pb, index); // rewrite size
219 avio_seek(pb, curpos, SEEK_SET);
220 return update_size(pb, pos);
223 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
225 avio_wb32(pb, 0x11); /* size */
226 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
227 else ffio_wfourcc(pb, "damr");
228 ffio_wfourcc(pb, "FFMP");
229 avio_w8(pb, 0); /* decoder version */
231 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
232 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
233 avio_w8(pb, 0x01); /* Frames per sample */
237 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
242 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
244 if (track->vos_len < 7)
248 ffio_wfourcc(pb, "dac3");
250 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
251 fscod = get_bits(&gbc, 2);
252 frmsizecod = get_bits(&gbc, 6);
253 bsid = get_bits(&gbc, 5);
254 bsmod = get_bits(&gbc, 3);
255 acmod = get_bits(&gbc, 3);
257 skip_bits(&gbc, 2); // dsurmod
259 if ((acmod & 1) && acmod != 1)
260 skip_bits(&gbc, 2); // cmixlev
262 skip_bits(&gbc, 2); // surmixlev
264 lfeon = get_bits1(&gbc);
266 init_put_bits(&pbc, buf, sizeof(buf));
267 put_bits(&pbc, 2, fscod);
268 put_bits(&pbc, 5, bsid);
269 put_bits(&pbc, 3, bsmod);
270 put_bits(&pbc, 3, acmod);
271 put_bits(&pbc, 1, lfeon);
272 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
273 put_bits(&pbc, 5, 0); // reserved
275 flush_put_bits(&pbc);
276 avio_write(pb, buf, sizeof(buf));
282 * This function writes extradata "as is".
283 * Extradata must be formatted like a valid atom (with size and tag).
285 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
287 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
288 return track->enc->extradata_size;
291 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
296 avio_w8(pb, (size >> (7 * i)) | 0x80);
297 avio_w8(pb, size & 0x7F);
300 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
302 int64_t pos = avio_tell(pb);
303 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
305 avio_wb32(pb, 0); // size
306 ffio_wfourcc(pb, "esds");
307 avio_wb32(pb, 0); // Version
310 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
311 avio_wb16(pb, track->track_id);
312 avio_w8(pb, 0x00); // flags (= no flags)
314 // DecoderConfig descriptor
315 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
317 // Object type indication
318 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
319 track->enc->codec_id == AV_CODEC_ID_MP3) &&
320 track->enc->sample_rate > 24000)
321 avio_w8(pb, 0x6B); // 11172-3
323 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
325 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
326 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
327 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
328 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
329 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
330 avio_w8(pb, 0x15); // flags (= Audiostream)
332 avio_w8(pb, 0x11); // flags (= Visualstream)
334 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
336 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
337 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
338 track->enc->rc_min_rate == 0)
339 avio_wb32(pb, 0); // vbr
341 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
343 if (track->vos_len) {
344 // DecoderSpecific info descriptor
345 put_descr(pb, 0x05, track->vos_len);
346 avio_write(pb, track->vos_data, track->vos_len);
350 put_descr(pb, 0x06, 1);
352 return update_size(pb, pos);
355 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
357 int64_t pos = avio_tell(pb);
359 avio_wl32(pb, track->tag); // store it byteswapped
360 track->enc->codec_tag = av_bswap16(track->tag >> 16);
361 ff_put_wav_header(pb, track->enc);
362 return update_size(pb, pos);
365 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
367 int64_t pos = avio_tell(pb);
369 ffio_wfourcc(pb, "wfex");
370 ff_put_wav_header(pb, track->enc);
371 return update_size(pb, pos);
374 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
376 uint32_t layout_tag, bitmap;
377 int64_t pos = avio_tell(pb);
379 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
380 track->enc->channel_layout,
383 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
384 "lack of channel information\n");
388 avio_wb32(pb, 0); // Size
389 ffio_wfourcc(pb, "chan"); // Type
390 avio_w8(pb, 0); // Version
391 avio_wb24(pb, 0); // Flags
392 avio_wb32(pb, layout_tag); // mChannelLayoutTag
393 avio_wb32(pb, bitmap); // mChannelBitmap
394 avio_wb32(pb, 0); // mNumberChannelDescriptions
396 return update_size(pb, pos);
399 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
401 int64_t pos = avio_tell(pb);
403 avio_wb32(pb, 0); /* size */
404 ffio_wfourcc(pb, "wave");
406 avio_wb32(pb, 12); /* size */
407 ffio_wfourcc(pb, "frma");
408 avio_wl32(pb, track->tag);
410 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
411 /* useless atom needed by mplayer, ipod, not needed by quicktime */
412 avio_wb32(pb, 12); /* size */
413 ffio_wfourcc(pb, "mp4a");
415 mov_write_esds_tag(pb, track);
416 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
417 mov_write_amr_tag(pb, track);
418 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
419 mov_write_ac3_tag(pb, track);
420 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
421 mov_write_extradata_tag(pb, track);
422 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
423 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
424 mov_write_ms_tag(pb, track);
427 avio_wb32(pb, 8); /* size */
428 avio_wb32(pb, 0); /* null tag */
430 return update_size(pb, pos);
433 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
436 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
437 int unescaped_size, seq_found = 0;
438 int level = 0, interlace = 0;
439 int packet_seq = track->vc1_info.packet_seq;
440 int packet_entry = track->vc1_info.packet_entry;
441 int slices = track->vc1_info.slices;
444 if (track->start_dts == AV_NOPTS_VALUE) {
445 /* No packets written yet, vc1_info isn't authoritative yet. */
446 /* Assume inline sequence and entry headers. This will be
447 * overwritten at the end if the file is seekable. */
448 packet_seq = packet_entry = 1;
451 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
453 return AVERROR(ENOMEM);
454 start = find_next_marker(track->vos_data, end);
455 for (next = start; next < end; start = next) {
458 next = find_next_marker(start + 4, end);
459 size = next - start - 4;
462 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
463 init_get_bits(&gb, unescaped, 8 * unescaped_size);
464 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
465 int profile = get_bits(&gb, 2);
466 if (profile != PROFILE_ADVANCED) {
468 return AVERROR(ENOSYS);
471 level = get_bits(&gb, 3);
472 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
474 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
475 skip_bits(&gb, 1); /* broadcast */
476 interlace = get_bits1(&gb);
477 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
482 return AVERROR(ENOSYS);
485 init_put_bits(&pbc, buf, 7);
486 /* VC1DecSpecStruc */
487 put_bits(&pbc, 4, 12); /* profile - advanced */
488 put_bits(&pbc, 3, level);
489 put_bits(&pbc, 1, 0); /* reserved */
490 /* VC1AdvDecSpecStruc */
491 put_bits(&pbc, 3, level);
492 put_bits(&pbc, 1, 0); /* cbr */
493 put_bits(&pbc, 6, 0); /* reserved */
494 put_bits(&pbc, 1, !interlace); /* no interlace */
495 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
496 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
497 put_bits(&pbc, 1, !slices); /* no slice code */
498 put_bits(&pbc, 1, 0); /* no bframe */
499 put_bits(&pbc, 1, 0); /* reserved */
502 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
503 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
505 put_bits32(&pbc, 0xffffffff);
507 flush_put_bits(&pbc);
514 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
516 uint8_t buf[7] = { 0 };
519 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
522 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
523 ffio_wfourcc(pb, "dvc1");
524 track->vc1_info.struct_offset = avio_tell(pb);
525 avio_write(pb, buf, sizeof(buf));
526 avio_write(pb, track->vos_data, track->vos_len);
531 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
533 avio_wb32(pb, track->vos_len + 8);
534 ffio_wfourcc(pb, "glbl");
535 avio_write(pb, track->vos_data, track->vos_len);
536 return 8 + track->vos_len;
540 * Compute flags for 'lpcm' tag.
541 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
543 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
546 case AV_CODEC_ID_PCM_F32BE:
547 case AV_CODEC_ID_PCM_F64BE:
549 case AV_CODEC_ID_PCM_F32LE:
550 case AV_CODEC_ID_PCM_F64LE:
552 case AV_CODEC_ID_PCM_U8:
554 case AV_CODEC_ID_PCM_S16BE:
555 case AV_CODEC_ID_PCM_S24BE:
556 case AV_CODEC_ID_PCM_S32BE:
558 case AV_CODEC_ID_PCM_S8:
559 case AV_CODEC_ID_PCM_S16LE:
560 case AV_CODEC_ID_PCM_S24LE:
561 case AV_CODEC_ID_PCM_S32LE:
568 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
572 if (cluster_idx >= track->entry)
575 if (cluster_idx + 1 == track->entry)
576 next_dts = track->track_duration + track->start_dts;
578 next_dts = track->cluster[cluster_idx + 1].dts;
580 return next_dts - track->cluster[cluster_idx].dts;
583 static int get_samples_per_packet(MOVTrack *track)
585 int i, first_duration;
587 /* use 1 for raw PCM */
588 if (!track->audio_vbr)
591 /* check to see if duration is constant for all clusters */
594 first_duration = get_cluster_duration(track, 0);
595 for (i = 1; i < track->entry; i++) {
596 if (get_cluster_duration(track, i) != first_duration)
599 return first_duration;
602 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
604 int64_t pos = avio_tell(pb);
606 uint32_t tag = track->tag;
608 if (track->mode == MODE_MOV) {
609 if (mov_get_lpcm_flags(track->enc->codec_id))
610 tag = AV_RL32("lpcm");
614 avio_wb32(pb, 0); /* size */
615 avio_wl32(pb, tag); // store it byteswapped
616 avio_wb32(pb, 0); /* Reserved */
617 avio_wb16(pb, 0); /* Reserved */
618 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
620 /* SoundDescription */
621 avio_wb16(pb, version); /* Version */
622 avio_wb16(pb, 0); /* Revision level */
623 avio_wb32(pb, 0); /* Reserved */
628 avio_wb16(pb, 0xfffe);
630 avio_wb32(pb, 0x00010000);
632 avio_wb64(pb, av_double2int(track->enc->sample_rate));
633 avio_wb32(pb, track->enc->channels);
634 avio_wb32(pb, 0x7F000000);
635 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
636 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
637 avio_wb32(pb, track->sample_size);
638 avio_wb32(pb, get_samples_per_packet(track));
640 /* reserved for mp4/3gp */
645 avio_wb16(pb, 0); /* packet size (= 0) */
646 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
647 track->enc->sample_rate : 0);
648 avio_wb16(pb, 0); /* Reserved */
651 if (track->mode == MODE_MOV &&
652 (track->enc->codec_id == AV_CODEC_ID_AAC ||
653 track->enc->codec_id == AV_CODEC_ID_AC3 ||
654 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
655 track->enc->codec_id == AV_CODEC_ID_ALAC ||
656 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
657 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
658 mov_write_wave_tag(pb, track);
659 else if (track->tag == MKTAG('m','p','4','a'))
660 mov_write_esds_tag(pb, track);
661 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
662 mov_write_amr_tag(pb, track);
663 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
664 mov_write_ac3_tag(pb, track);
665 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
666 mov_write_extradata_tag(pb, track);
667 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
668 mov_write_wfex_tag(pb, track);
669 else if (track->vos_len > 0)
670 mov_write_glbl_tag(pb, track);
672 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
673 mov_write_chan_tag(pb, track);
675 return update_size(pb, pos);
678 static int mov_write_d263_tag(AVIOContext *pb)
680 avio_wb32(pb, 0xf); /* size */
681 ffio_wfourcc(pb, "d263");
682 ffio_wfourcc(pb, "FFMP");
683 avio_w8(pb, 0); /* decoder version */
684 /* FIXME use AVCodecContext level/profile, when encoder will set values */
685 avio_w8(pb, 0xa); /* level */
686 avio_w8(pb, 0); /* profile */
690 /* TODO: No idea about these values */
691 static int mov_write_svq3_tag(AVIOContext *pb)
694 ffio_wfourcc(pb, "SMI ");
695 ffio_wfourcc(pb, "SEQH");
697 avio_wb32(pb, 0xe2c0211d);
698 avio_wb32(pb, 0xc0000000);
703 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
705 int64_t pos = avio_tell(pb);
708 ffio_wfourcc(pb, "avcC");
709 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
710 return update_size(pb, pos);
713 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
715 int64_t pos = avio_tell(pb);
718 ffio_wfourcc(pb, "hvcC");
719 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
720 return update_size(pb, pos);
723 /* also used by all avid codecs (dv, imx, meridien) and their variants */
724 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
727 avio_wb32(pb, 24); /* size */
728 ffio_wfourcc(pb, "ACLR");
729 ffio_wfourcc(pb, "ACLR");
730 ffio_wfourcc(pb, "0001");
731 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
732 avio_wb32(pb, 0); /* unknown */
734 avio_wb32(pb, 24); /* size */
735 ffio_wfourcc(pb, "APRG");
736 ffio_wfourcc(pb, "APRG");
737 ffio_wfourcc(pb, "0001");
738 avio_wb32(pb, 1); /* unknown */
739 avio_wb32(pb, 0); /* unknown */
741 avio_wb32(pb, 120); /* size */
742 ffio_wfourcc(pb, "ARES");
743 ffio_wfourcc(pb, "ARES");
744 ffio_wfourcc(pb, "0001");
745 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
746 avio_wb32(pb, track->enc->width);
747 /* values below are based on samples created with quicktime and avid codecs */
748 if (track->vos_data[5] & 2) { // interlaced
749 avio_wb32(pb, track->enc->height / 2);
750 avio_wb32(pb, 2); /* unknown */
751 avio_wb32(pb, 0); /* unknown */
752 avio_wb32(pb, 4); /* unknown */
754 avio_wb32(pb, track->enc->height);
755 avio_wb32(pb, 1); /* unknown */
756 avio_wb32(pb, 0); /* unknown */
757 if (track->enc->height == 1080)
758 avio_wb32(pb, 5); /* unknown */
760 avio_wb32(pb, 6); /* unknown */
763 for (i = 0; i < 10; i++)
766 /* extra padding for stsd needed */
771 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
773 int tag = track->enc->codec_tag;
775 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
778 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
779 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
780 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
781 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
782 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
783 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
784 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
785 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
786 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
791 static const AVCodecTag codec_ipod_tags[] = {
792 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
793 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
794 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
795 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
796 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
797 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
798 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
799 { AV_CODEC_ID_NONE, 0 },
802 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
804 int tag = track->enc->codec_tag;
806 // keep original tag for subs, ipod supports both formats
807 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
808 (tag == MKTAG('t', 'x', '3', 'g') ||
809 tag == MKTAG('t', 'e', 'x', 't'))))
810 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
812 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
813 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
814 "Quicktime/Ipod might not play the file\n");
819 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
823 if (track->enc->width == 720) /* SD */
824 if (track->enc->height == 480) /* NTSC */
825 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
826 else tag = MKTAG('d','v','c',' ');
827 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
828 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
829 else tag = MKTAG('d','v','p','p');
830 else if (track->enc->height == 720) /* HD 720 line */
831 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
832 else tag = MKTAG('d','v','h','p');
833 else if (track->enc->height == 1080) /* HD 1080 line */
834 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
835 else tag = MKTAG('d','v','h','6');
837 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
844 static const struct {
845 enum AVPixelFormat pix_fmt;
848 } mov_pix_fmt_tags[] = {
849 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
850 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
851 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
852 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
853 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
854 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
855 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
856 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
857 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
858 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
859 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
860 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
861 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
862 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
865 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
867 int tag = track->enc->codec_tag;
870 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
871 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
872 tag = mov_pix_fmt_tags[i].tag;
873 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
881 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
883 int tag = track->enc->codec_tag;
885 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
886 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
887 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
888 track->enc->codec_id == AV_CODEC_ID_H263 ||
889 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
890 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
891 tag = mov_get_dv_codec_tag(s, track);
892 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
893 tag = mov_get_rawvideo_codec_tag(s, track);
894 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
895 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
896 if (!tag) { // if no mac fcc found, try with Microsoft tags
897 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
899 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
900 "the file may be unplayable!\n");
902 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
903 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
904 if (!tag) { // if no mac fcc found, try with Microsoft tags
905 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
907 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
908 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
909 "the file may be unplayable!\n");
912 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
913 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
919 static const AVCodecTag codec_3gp_tags[] = {
920 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
921 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
922 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
923 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
924 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
925 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
926 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
927 { AV_CODEC_ID_NONE, 0 },
930 static const AVCodecTag codec_f4v_tags[] = {
931 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
932 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
933 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
934 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
935 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
936 { AV_CODEC_ID_NONE, 0 },
939 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
943 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
944 tag = mp4_get_codec_tag(s, track);
945 else if (track->mode == MODE_ISM) {
946 tag = mp4_get_codec_tag(s, track);
947 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
948 tag = MKTAG('w', 'm', 'a', ' ');
949 } else if (track->mode == MODE_IPOD)
950 tag = ipod_get_codec_tag(s, track);
951 else if (track->mode & MODE_3GP)
952 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
953 else if (track->mode == MODE_F4V)
954 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
956 tag = mov_get_codec_tag(s, track);
962 * Needed to make file play in iPods running newest firmware
963 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
965 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
968 ffio_wfourcc(pb, "uuid");
969 avio_wb32(pb, 0x6b6840f2);
970 avio_wb32(pb, 0x5f244fc5);
971 avio_wb32(pb, 0xba39a51b);
972 avio_wb32(pb, 0xcf0323f3);
977 static const uint16_t fiel_data[] = {
978 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
981 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
983 unsigned mov_field_order = 0;
984 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
985 mov_field_order = fiel_data[track->enc->field_order];
989 ffio_wfourcc(pb, "fiel");
990 avio_wb16(pb, mov_field_order);
994 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
996 int64_t pos = avio_tell(pb);
997 avio_wb32(pb, 0); /* size */
998 avio_wl32(pb, track->tag); // store it byteswapped
999 avio_wb32(pb, 0); /* Reserved */
1000 avio_wb16(pb, 0); /* Reserved */
1001 avio_wb16(pb, 1); /* Data-reference index */
1003 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1004 mov_write_esds_tag(pb, track);
1005 else if (track->enc->extradata_size)
1006 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1008 return update_size(pb, pos);
1011 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1014 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1015 track->enc->sample_aspect_ratio.den, INT_MAX);
1018 ffio_wfourcc(pb, "pasp");
1019 avio_wb32(pb, sar.num);
1020 avio_wb32(pb, sar.den);
1024 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1026 AVDictionaryEntry *encoder;
1027 int64_t pos = avio_tell(pb);
1028 char compressor_name[32] = { 0 };
1030 avio_wb32(pb, 0); /* size */
1031 avio_wl32(pb, track->tag); // store it byteswapped
1032 avio_wb32(pb, 0); /* Reserved */
1033 avio_wb16(pb, 0); /* Reserved */
1034 avio_wb16(pb, 1); /* Data-reference index */
1036 avio_wb16(pb, 0); /* Codec stream version */
1037 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1038 if (track->mode == MODE_MOV) {
1039 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1040 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1041 avio_wb32(pb, 0); /* Temporal Quality */
1042 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1044 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1045 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1048 avio_wb32(pb, 0); /* Reserved */
1049 avio_wb32(pb, 0); /* Reserved */
1050 avio_wb32(pb, 0); /* Reserved */
1052 avio_wb16(pb, track->enc->width); /* Video width */
1053 avio_wb16(pb, track->height); /* Video height */
1054 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1055 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1056 avio_wb32(pb, 0); /* Data size (= 0) */
1057 avio_wb16(pb, 1); /* Frame count (= 1) */
1059 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1060 if (track->mode == MODE_MOV &&
1061 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1062 av_strlcpy(compressor_name, encoder->value, 32);
1063 avio_w8(pb, strlen(compressor_name));
1064 avio_write(pb, compressor_name, 31);
1066 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1067 avio_wb16(pb, track->enc->bits_per_coded_sample);
1069 avio_wb16(pb, 0x18); /* Reserved */
1070 avio_wb16(pb, 0xffff); /* Reserved */
1071 if (track->tag == MKTAG('m','p','4','v'))
1072 mov_write_esds_tag(pb, track);
1073 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1074 mov_write_d263_tag(pb);
1075 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1076 mov_write_svq3_tag(pb);
1077 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1078 mov_write_avid_tag(pb, track);
1079 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1080 mov_write_hvcc_tag(pb, track);
1081 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1082 mov_write_avcc_tag(pb, track);
1083 if (track->mode == MODE_IPOD)
1084 mov_write_uuid_tag_ipod(pb);
1085 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1086 mov_write_fiel_tag(pb, track);
1087 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1088 mov_write_dvc1_tag(pb, track);
1089 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1090 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1091 /* Don't write any potential extradata here - the cropping
1092 * is signalled via the normal width/height fields. */
1093 } else if (track->vos_len > 0)
1094 mov_write_glbl_tag(pb, track);
1096 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1097 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1098 mov_write_pasp_tag(pb, track);
1101 return update_size(pb, pos);
1104 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1106 int64_t pos = avio_tell(pb);
1107 avio_wb32(pb, 0); /* size */
1108 ffio_wfourcc(pb, "rtp ");
1109 avio_wb32(pb, 0); /* Reserved */
1110 avio_wb16(pb, 0); /* Reserved */
1111 avio_wb16(pb, 1); /* Data-reference index */
1113 avio_wb16(pb, 1); /* Hint track version */
1114 avio_wb16(pb, 1); /* Highest compatible version */
1115 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1117 avio_wb32(pb, 12); /* size */
1118 ffio_wfourcc(pb, "tims");
1119 avio_wb32(pb, track->timescale);
1121 return update_size(pb, pos);
1124 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1126 int64_t pos = avio_tell(pb);
1128 avio_wb32(pb, 0); /* size */
1129 ffio_wfourcc(pb, "tmcd"); /* Data format */
1130 avio_wb32(pb, 0); /* Reserved */
1131 avio_wb32(pb, 1); /* Data reference index */
1132 if (track->enc->extradata_size)
1133 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1134 return update_size(pb, pos);
1137 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1139 int64_t pos = avio_tell(pb);
1140 avio_wb32(pb, 0); /* size */
1141 ffio_wfourcc(pb, "stsd");
1142 avio_wb32(pb, 0); /* version & flags */
1143 avio_wb32(pb, 1); /* entry count */
1144 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1145 mov_write_video_tag(pb, track);
1146 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1147 mov_write_audio_tag(pb, track);
1148 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1149 mov_write_subtitle_tag(pb, track);
1150 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1151 mov_write_rtp_tag(pb, track);
1152 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1153 mov_write_tmcd_tag(pb, track);
1154 return update_size(pb, pos);
1157 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1159 MOVStts *ctts_entries;
1160 uint32_t entries = 0;
1164 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1165 ctts_entries[0].count = 1;
1166 ctts_entries[0].duration = track->cluster[0].cts;
1167 for (i = 1; i < track->entry; i++) {
1168 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1169 ctts_entries[entries].count++; /* compress */
1172 ctts_entries[entries].duration = track->cluster[i].cts;
1173 ctts_entries[entries].count = 1;
1176 entries++; /* last one */
1177 atom_size = 16 + (entries * 8);
1178 avio_wb32(pb, atom_size); /* size */
1179 ffio_wfourcc(pb, "ctts");
1180 avio_wb32(pb, 0); /* version & flags */
1181 avio_wb32(pb, entries); /* entry count */
1182 for (i = 0; i < entries; i++) {
1183 avio_wb32(pb, ctts_entries[i].count);
1184 avio_wb32(pb, ctts_entries[i].duration);
1186 av_free(ctts_entries);
1190 /* Time to sample atom */
1191 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1193 MOVStts *stts_entries;
1194 uint32_t entries = -1;
1198 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1199 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1200 stts_entries[0].count = track->sample_count;
1201 stts_entries[0].duration = 1;
1204 stts_entries = track->entry ?
1205 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1207 for (i = 0; i < track->entry; i++) {
1208 int duration = get_cluster_duration(track, i);
1209 if (i && duration == stts_entries[entries].duration) {
1210 stts_entries[entries].count++; /* compress */
1213 stts_entries[entries].duration = duration;
1214 stts_entries[entries].count = 1;
1217 entries++; /* last one */
1219 atom_size = 16 + (entries * 8);
1220 avio_wb32(pb, atom_size); /* size */
1221 ffio_wfourcc(pb, "stts");
1222 avio_wb32(pb, 0); /* version & flags */
1223 avio_wb32(pb, entries); /* entry count */
1224 for (i = 0; i < entries; i++) {
1225 avio_wb32(pb, stts_entries[i].count);
1226 avio_wb32(pb, stts_entries[i].duration);
1228 av_free(stts_entries);
1232 static int mov_write_dref_tag(AVIOContext *pb)
1234 avio_wb32(pb, 28); /* size */
1235 ffio_wfourcc(pb, "dref");
1236 avio_wb32(pb, 0); /* version & flags */
1237 avio_wb32(pb, 1); /* entry count */
1239 avio_wb32(pb, 0xc); /* size */
1240 ffio_wfourcc(pb, "url ");
1241 avio_wb32(pb, 1); /* version & flags */
1246 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1248 int64_t pos = avio_tell(pb);
1249 avio_wb32(pb, 0); /* size */
1250 ffio_wfourcc(pb, "stbl");
1251 mov_write_stsd_tag(pb, track);
1252 mov_write_stts_tag(pb, track);
1253 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1254 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1255 track->has_keyframes && track->has_keyframes < track->entry)
1256 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1257 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1258 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1259 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1260 track->flags & MOV_TRACK_CTTS)
1261 mov_write_ctts_tag(pb, track);
1262 mov_write_stsc_tag(pb, track);
1263 mov_write_stsz_tag(pb, track);
1264 mov_write_stco_tag(pb, track);
1265 return update_size(pb, pos);
1268 static int mov_write_dinf_tag(AVIOContext *pb)
1270 int64_t pos = avio_tell(pb);
1271 avio_wb32(pb, 0); /* size */
1272 ffio_wfourcc(pb, "dinf");
1273 mov_write_dref_tag(pb);
1274 return update_size(pb, pos);
1277 static int mov_write_nmhd_tag(AVIOContext *pb)
1280 ffio_wfourcc(pb, "nmhd");
1285 static int mov_write_gmhd_tag(AVIOContext *pb)
1287 avio_wb32(pb, 0x20); /* size */
1288 ffio_wfourcc(pb, "gmhd");
1289 avio_wb32(pb, 0x18); /* gmin size */
1290 ffio_wfourcc(pb, "gmin");/* generic media info */
1291 avio_wb32(pb, 0); /* version & flags */
1292 avio_wb16(pb, 0x40); /* graphics mode = */
1293 avio_wb16(pb, 0x8000); /* opColor (r?) */
1294 avio_wb16(pb, 0x8000); /* opColor (g?) */
1295 avio_wb16(pb, 0x8000); /* opColor (b?) */
1296 avio_wb16(pb, 0); /* balance */
1297 avio_wb16(pb, 0); /* reserved */
1301 static int mov_write_smhd_tag(AVIOContext *pb)
1303 avio_wb32(pb, 16); /* size */
1304 ffio_wfourcc(pb, "smhd");
1305 avio_wb32(pb, 0); /* version & flags */
1306 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1307 avio_wb16(pb, 0); /* reserved */
1311 static int mov_write_vmhd_tag(AVIOContext *pb)
1313 avio_wb32(pb, 0x14); /* size (always 0x14) */
1314 ffio_wfourcc(pb, "vmhd");
1315 avio_wb32(pb, 0x01); /* version & flags */
1316 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1320 static int is_clcp_track(MOVTrack *track)
1322 return track->tag == MKTAG('c','7','0','8') ||
1323 track->tag == MKTAG('c','6','0','8');
1326 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1328 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1329 int64_t pos = avio_tell(pb);
1333 descr = "DataHandler";
1336 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1337 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1339 descr = "VideoHandler";
1340 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1342 descr = "SoundHandler";
1343 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1344 if (track->tag == MKTAG('t','x','3','g')) {
1346 } else if (track->tag == MKTAG('m','p','4','s')) {
1348 } else if (is_clcp_track(track)) {
1353 descr = "SubtitleHandler";
1354 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1356 descr = "HintHandler";
1357 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1359 descr = "TimeCodeHandler";
1362 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1363 track->enc->codec_tag);
1365 av_log(track->enc, AV_LOG_WARNING,
1366 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1367 tag_buf, track->enc->codec_tag);
1370 // hdlr.name is used by some players to identify the content title
1371 // of the track. So if an alternate handler description is
1372 // specified, use it.
1373 AVDictionaryEntry *t;
1374 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1375 if (t && utf8len(t->value))
1380 avio_wb32(pb, 0); /* size */
1381 ffio_wfourcc(pb, "hdlr");
1382 avio_wb32(pb, 0); /* Version & flags */
1383 avio_write(pb, hdlr, 4); /* handler */
1384 ffio_wfourcc(pb, hdlr_type); /* handler type */
1385 avio_wb32(pb, 0); /* reserved */
1386 avio_wb32(pb, 0); /* reserved */
1387 avio_wb32(pb, 0); /* reserved */
1388 if (!track || track->mode == MODE_MOV)
1389 avio_w8(pb, strlen(descr)); /* pascal string */
1390 avio_write(pb, descr, strlen(descr)); /* handler description */
1391 if (track && track->mode != MODE_MOV)
1392 avio_w8(pb, 0); /* c string */
1393 return update_size(pb, pos);
1396 static int mov_write_hmhd_tag(AVIOContext *pb)
1398 /* This atom must be present, but leaving the values at zero
1399 * seems harmless. */
1400 avio_wb32(pb, 28); /* size */
1401 ffio_wfourcc(pb, "hmhd");
1402 avio_wb32(pb, 0); /* version, flags */
1403 avio_wb16(pb, 0); /* maxPDUsize */
1404 avio_wb16(pb, 0); /* avgPDUsize */
1405 avio_wb32(pb, 0); /* maxbitrate */
1406 avio_wb32(pb, 0); /* avgbitrate */
1407 avio_wb32(pb, 0); /* reserved */
1411 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1413 int64_t pos = avio_tell(pb);
1414 avio_wb32(pb, 0); /* size */
1415 ffio_wfourcc(pb, "minf");
1416 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1417 mov_write_vmhd_tag(pb);
1418 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1419 mov_write_smhd_tag(pb);
1420 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1421 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1422 mov_write_gmhd_tag(pb);
1424 mov_write_nmhd_tag(pb);
1426 } else if (track->tag == MKTAG('r','t','p',' ')) {
1427 mov_write_hmhd_tag(pb);
1428 } else if (track->tag == MKTAG('t','m','c','d')) {
1429 mov_write_gmhd_tag(pb);
1431 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1432 mov_write_hdlr_tag(pb, NULL);
1433 mov_write_dinf_tag(pb);
1434 mov_write_stbl_tag(pb, track);
1435 return update_size(pb, pos);
1438 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1441 int version = track->track_duration < INT32_MAX ? 0 : 1;
1443 if (track->mode == MODE_ISM)
1446 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1447 ffio_wfourcc(pb, "mdhd");
1448 avio_w8(pb, version);
1449 avio_wb24(pb, 0); /* flags */
1451 avio_wb64(pb, track->time);
1452 avio_wb64(pb, track->time);
1454 avio_wb32(pb, track->time); /* creation time */
1455 avio_wb32(pb, track->time); /* modification time */
1457 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1458 if (!track->entry && mov->mode == MODE_ISM)
1459 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1460 else if (!track->entry)
1461 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1463 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1464 avio_wb16(pb, track->language); /* language */
1465 avio_wb16(pb, 0); /* reserved (quality) */
1467 if (version != 0 && track->mode == MODE_MOV) {
1468 av_log(NULL, AV_LOG_ERROR,
1469 "FATAL error, file duration too long for timebase, this file will not be\n"
1470 "playable with quicktime. Choose a different timebase or a different\n"
1471 "container format\n");
1477 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
1480 int64_t pos = avio_tell(pb);
1481 avio_wb32(pb, 0); /* size */
1482 ffio_wfourcc(pb, "mdia");
1483 mov_write_mdhd_tag(pb, mov, track);
1484 mov_write_hdlr_tag(pb, track);
1485 mov_write_minf_tag(pb, track);
1486 return update_size(pb, pos);
1489 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1490 MOVTrack *track, AVStream *st)
1492 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1493 track->timescale, AV_ROUND_UP);
1494 int version = duration < INT32_MAX ? 0 : 1;
1495 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1500 if (mov->per_stream_grouping)
1503 group = st->codec->codec_type;
1506 if (track->flags & MOV_TRACK_ENABLED)
1507 flags |= MOV_TKHD_FLAG_ENABLED;
1509 if (track->mode == MODE_ISM)
1512 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1513 ffio_wfourcc(pb, "tkhd");
1514 avio_w8(pb, version);
1515 avio_wb24(pb, flags);
1517 avio_wb64(pb, track->time);
1518 avio_wb64(pb, track->time);
1520 avio_wb32(pb, track->time); /* creation time */
1521 avio_wb32(pb, track->time); /* modification time */
1523 avio_wb32(pb, track->track_id); /* track-id */
1524 avio_wb32(pb, 0); /* reserved */
1525 if (!track->entry && mov->mode == MODE_ISM)
1526 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1527 else if (!track->entry)
1528 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1530 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1532 avio_wb32(pb, 0); /* reserved */
1533 avio_wb32(pb, 0); /* reserved */
1534 avio_wb16(pb, 0); /* layer */
1535 avio_wb16(pb, group); /* alternate group) */
1536 /* Volume, only for audio */
1537 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1538 avio_wb16(pb, 0x0100);
1541 avio_wb16(pb, 0); /* reserved */
1543 /* Matrix structure */
1544 avio_wb32(pb, 0x00010000); /* reserved */
1545 avio_wb32(pb, 0x0); /* reserved */
1546 avio_wb32(pb, 0x0); /* reserved */
1547 avio_wb32(pb, 0x0); /* reserved */
1548 avio_wb32(pb, 0x00010000); /* reserved */
1549 avio_wb32(pb, 0x0); /* reserved */
1550 avio_wb32(pb, 0x0); /* reserved */
1551 avio_wb32(pb, 0x0); /* reserved */
1552 avio_wb32(pb, 0x40000000); /* reserved */
1554 /* Track width and height, for visual only */
1555 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1556 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1557 if (track->mode == MODE_MOV) {
1558 avio_wb32(pb, track->enc->width << 16);
1559 avio_wb32(pb, track->height << 16);
1561 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1562 if (!sample_aspect_ratio || track->height != track->enc->height)
1563 sample_aspect_ratio = 1;
1564 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1565 avio_wb32(pb, track->height * 0x10000);
1574 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1576 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1577 track->enc->sample_aspect_ratio.den);
1579 int64_t pos = avio_tell(pb);
1581 avio_wb32(pb, 0); /* size */
1582 ffio_wfourcc(pb, "tapt");
1585 ffio_wfourcc(pb, "clef");
1587 avio_wb32(pb, width << 16);
1588 avio_wb32(pb, track->enc->height << 16);
1591 ffio_wfourcc(pb, "prof");
1593 avio_wb32(pb, width << 16);
1594 avio_wb32(pb, track->enc->height << 16);
1597 ffio_wfourcc(pb, "enof");
1599 avio_wb32(pb, track->enc->width << 16);
1600 avio_wb32(pb, track->enc->height << 16);
1602 return update_size(pb, pos);
1605 // This box seems important for the psp playback ... without it the movie seems to hang
1606 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1609 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1610 track->timescale, AV_ROUND_UP);
1611 int version = duration < INT32_MAX ? 0 : 1;
1612 int entry_size, entry_count, size;
1613 int64_t delay, start_ct = track->cluster[0].cts;
1614 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1615 track->timescale, AV_ROUND_DOWN);
1616 version |= delay < INT32_MAX ? 0 : 1;
1618 entry_size = (version == 1) ? 20 : 12;
1619 entry_count = 1 + (delay > 0);
1620 size = 24 + entry_count * entry_size;
1622 /* write the atom data */
1623 avio_wb32(pb, size);
1624 ffio_wfourcc(pb, "edts");
1625 avio_wb32(pb, size - 8);
1626 ffio_wfourcc(pb, "elst");
1627 avio_w8(pb, version);
1628 avio_wb24(pb, 0); /* flags */
1630 avio_wb32(pb, entry_count);
1631 if (delay > 0) { /* add an empty edit to delay presentation */
1632 /* In the positive delay case, the delay includes the cts
1633 * offset, and the second edit list entry below trims out
1634 * the same amount from the actual content. This makes sure
1635 * that the offsetted last sample is included in the edit
1636 * list duration as well. */
1638 avio_wb64(pb, delay);
1641 avio_wb32(pb, delay);
1644 avio_wb32(pb, 0x00010000);
1646 /* Avoid accidentally ending up with start_ct = -1 which has got a
1647 * special meaning. Normally start_ct should end up positive or zero
1648 * here, but use FFMIN in case dts is a a small positive integer
1649 * rounded to 0 when represented in MOV_TIMESCALE units. */
1650 start_ct = -FFMIN(track->cluster[0].dts, 0);
1651 /* Note, this delay is calculated from the pts of the first sample,
1652 * ensuring that we don't reduce the duration for cases with
1657 /* For fragmented files, we don't know the full length yet. Setting
1658 * duration to 0 allows us to only specify the offset, including
1659 * the rest of the content (from all future fragments) without specifying
1660 * an explicit duration. */
1661 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1666 avio_wb64(pb, duration);
1667 avio_wb64(pb, start_ct);
1669 avio_wb32(pb, duration);
1670 avio_wb32(pb, start_ct);
1672 avio_wb32(pb, 0x00010000);
1676 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1678 avio_wb32(pb, 20); // size
1679 ffio_wfourcc(pb, "tref");
1680 avio_wb32(pb, 12); // size (subatom)
1681 avio_wl32(pb, track->tref_tag);
1682 avio_wb32(pb, track->tref_id);
1686 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1687 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1689 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1690 ffio_wfourcc(pb, "uuid");
1691 ffio_wfourcc(pb, "USMT");
1692 avio_wb32(pb, 0x21d24fce);
1693 avio_wb32(pb, 0xbb88695c);
1694 avio_wb32(pb, 0xfac9c740);
1695 avio_wb32(pb, 0x1c); // another size here!
1696 ffio_wfourcc(pb, "MTDT");
1697 avio_wb32(pb, 0x00010012);
1698 avio_wb32(pb, 0x0a);
1699 avio_wb32(pb, 0x55c40000);
1705 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1707 AVFormatContext *ctx = track->rtp_ctx;
1708 char buf[1000] = "";
1711 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1712 NULL, NULL, 0, 0, ctx);
1713 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1716 avio_wb32(pb, len + 24);
1717 ffio_wfourcc(pb, "udta");
1718 avio_wb32(pb, len + 16);
1719 ffio_wfourcc(pb, "hnti");
1720 avio_wb32(pb, len + 8);
1721 ffio_wfourcc(pb, "sdp ");
1722 avio_write(pb, buf, len);
1726 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1727 const char *tag, const char *str)
1729 int64_t pos = avio_tell(pb);
1730 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1731 if (!t || !utf8len(t->value))
1734 avio_wb32(pb, 0); /* size */
1735 ffio_wfourcc(pb, tag); /* type */
1736 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1737 return update_size(pb, pos);
1740 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1743 AVIOContext *pb_buf;
1747 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
1750 ret = avio_open_dyn_buf(&pb_buf);
1754 if (mov->mode & MODE_MP4)
1755 mov_write_track_metadata(pb_buf, st, "name", "title");
1757 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1758 avio_wb32(pb, size + 8);
1759 ffio_wfourcc(pb, "udta");
1760 avio_write(pb, buf, size);
1767 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1768 MOVTrack *track, AVStream *st)
1770 int64_t pos = avio_tell(pb);
1771 avio_wb32(pb, 0); /* size */
1772 ffio_wfourcc(pb, "trak");
1773 mov_write_tkhd_tag(pb, mov, track, st);
1774 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1775 (track->entry && track->cluster[0].dts) ||
1776 is_clcp_track(track)) {
1777 if (mov->use_editlist)
1778 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1779 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1780 av_log(mov->fc, AV_LOG_WARNING,
1781 "Not writing any edit list even though one would have been required\n");
1783 if (track->tref_tag)
1784 mov_write_tref_tag(pb, track);
1785 mov_write_mdia_tag(pb, mov, track);
1786 if (track->mode == MODE_PSP)
1787 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1788 if (track->tag == MKTAG('r','t','p',' '))
1789 mov_write_udta_sdp(pb, track);
1790 if (track->mode == MODE_MOV) {
1791 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1792 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1793 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1794 mov_write_tapt_tag(pb, track);
1797 if (is_clcp_track(track)) {
1798 mov_write_tapt_tag(pb, track);
1801 mov_write_track_udta_tag(pb, mov, st);
1802 return update_size(pb, pos);
1805 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1807 int i, has_audio = 0, has_video = 0;
1808 int64_t pos = avio_tell(pb);
1809 int audio_profile = mov->iods_audio_profile;
1810 int video_profile = mov->iods_video_profile;
1811 for (i = 0; i < mov->nb_streams; i++) {
1812 if (mov->tracks[i].entry > 0) {
1813 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1814 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1817 if (audio_profile < 0)
1818 audio_profile = 0xFF - has_audio;
1819 if (video_profile < 0)
1820 video_profile = 0xFF - has_video;
1821 avio_wb32(pb, 0x0); /* size */
1822 ffio_wfourcc(pb, "iods");
1823 avio_wb32(pb, 0); /* version & flags */
1824 put_descr(pb, 0x10, 7);
1825 avio_wb16(pb, 0x004f);
1828 avio_w8(pb, audio_profile);
1829 avio_w8(pb, video_profile);
1831 return update_size(pb, pos);
1834 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1836 avio_wb32(pb, 0x20); /* size */
1837 ffio_wfourcc(pb, "trex");
1838 avio_wb32(pb, 0); /* version & flags */
1839 avio_wb32(pb, track->track_id); /* track ID */
1840 avio_wb32(pb, 1); /* default sample description index */
1841 avio_wb32(pb, 0); /* default sample duration */
1842 avio_wb32(pb, 0); /* default sample size */
1843 avio_wb32(pb, 0); /* default sample flags */
1847 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1849 int64_t pos = avio_tell(pb);
1851 avio_wb32(pb, 0x0); /* size */
1852 ffio_wfourcc(pb, "mvex");
1853 for (i = 0; i < mov->nb_streams; i++)
1854 mov_write_trex_tag(pb, &mov->tracks[i]);
1855 return update_size(pb, pos);
1858 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1860 int max_track_id = 1, i;
1861 int64_t max_track_len_temp, max_track_len = 0;
1864 for (i = 0; i < mov->nb_streams; i++) {
1865 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1866 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1868 mov->tracks[i].timescale,
1870 if (max_track_len < max_track_len_temp)
1871 max_track_len = max_track_len_temp;
1872 if (max_track_id < mov->tracks[i].track_id)
1873 max_track_id = mov->tracks[i].track_id;
1877 version = max_track_len < UINT32_MAX ? 0 : 1;
1878 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1879 ffio_wfourcc(pb, "mvhd");
1880 avio_w8(pb, version);
1881 avio_wb24(pb, 0); /* flags */
1883 avio_wb64(pb, mov->time);
1884 avio_wb64(pb, mov->time);
1886 avio_wb32(pb, mov->time); /* creation time */
1887 avio_wb32(pb, mov->time); /* modification time */
1889 avio_wb32(pb, MOV_TIMESCALE);
1890 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1892 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1893 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1894 avio_wb16(pb, 0); /* reserved */
1895 avio_wb32(pb, 0); /* reserved */
1896 avio_wb32(pb, 0); /* reserved */
1898 /* Matrix structure */
1899 avio_wb32(pb, 0x00010000); /* reserved */
1900 avio_wb32(pb, 0x0); /* reserved */
1901 avio_wb32(pb, 0x0); /* reserved */
1902 avio_wb32(pb, 0x0); /* reserved */
1903 avio_wb32(pb, 0x00010000); /* reserved */
1904 avio_wb32(pb, 0x0); /* reserved */
1905 avio_wb32(pb, 0x0); /* reserved */
1906 avio_wb32(pb, 0x0); /* reserved */
1907 avio_wb32(pb, 0x40000000); /* reserved */
1909 avio_wb32(pb, 0); /* reserved (preview time) */
1910 avio_wb32(pb, 0); /* reserved (preview duration) */
1911 avio_wb32(pb, 0); /* reserved (poster time) */
1912 avio_wb32(pb, 0); /* reserved (selection time) */
1913 avio_wb32(pb, 0); /* reserved (selection duration) */
1914 avio_wb32(pb, 0); /* reserved (current time) */
1915 avio_wb32(pb, max_track_id + 1); /* Next track id */
1919 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1922 avio_wb32(pb, 33); /* size */
1923 ffio_wfourcc(pb, "hdlr");
1926 ffio_wfourcc(pb, "mdir");
1927 ffio_wfourcc(pb, "appl");
1934 /* helper function to write a data tag with the specified string as data */
1935 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1938 int size = 16 + strlen(data);
1939 avio_wb32(pb, size); /* size */
1940 ffio_wfourcc(pb, "data");
1943 avio_write(pb, data, strlen(data));
1947 lang = ff_mov_iso639_to_lang("und", 1);
1948 avio_wb16(pb, strlen(data)); /* string length */
1949 avio_wb16(pb, lang);
1950 avio_write(pb, data, strlen(data));
1951 return strlen(data) + 4;
1955 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1956 const char *value, int lang, int long_style)
1959 if (value && value[0]) {
1960 int64_t pos = avio_tell(pb);
1961 avio_wb32(pb, 0); /* size */
1962 ffio_wfourcc(pb, name);
1963 mov_write_string_data_tag(pb, value, lang, long_style);
1964 size = update_size(pb, pos);
1969 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1970 const char *name, const char *tag,
1973 int l, lang = 0, len, len2;
1974 AVDictionaryEntry *t, *t2 = NULL;
1977 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1980 len = strlen(t->key);
1981 snprintf(tag2, sizeof(tag2), "%s-", tag);
1982 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1983 len2 = strlen(t2->key);
1984 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1985 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1990 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1993 /* iTunes track number */
1994 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1997 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1998 int size = 0, track = t ? atoi(t->value) : 0;
2000 avio_wb32(pb, 32); /* size */
2001 ffio_wfourcc(pb, "trkn");
2002 avio_wb32(pb, 24); /* size */
2003 ffio_wfourcc(pb, "data");
2004 avio_wb32(pb, 0); // 8 bytes empty
2006 avio_wb16(pb, 0); // empty
2007 avio_wb16(pb, track); // track number
2008 avio_wb16(pb, 0); // total track number
2009 avio_wb16(pb, 0); // empty
2015 /* iTunes meta data list */
2016 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2019 int64_t pos = avio_tell(pb);
2020 avio_wb32(pb, 0); /* size */
2021 ffio_wfourcc(pb, "ilst");
2022 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2023 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2024 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2025 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2026 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2027 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2028 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2029 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2030 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2031 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2032 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2033 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2034 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2035 mov_write_string_metadata(s, pb, "desc", "description",1);
2036 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2037 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2038 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2039 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2040 mov_write_trkn_tag(pb, mov, s);
2041 return update_size(pb, pos);
2044 /* iTunes meta data tag */
2045 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2049 int64_t pos = avio_tell(pb);
2050 avio_wb32(pb, 0); /* size */
2051 ffio_wfourcc(pb, "meta");
2053 mov_write_itunes_hdlr_tag(pb, mov, s);
2054 mov_write_ilst_tag(pb, mov, s);
2055 size = update_size(pb, pos);
2059 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2063 GET_UTF8(val, *b++, return -1;)
2066 avio_wb16(pb, 0x00);
2070 static uint16_t language_code(const char *str)
2072 return (((str[0] - 0x60) & 0x1F) << 10) +
2073 (((str[1] - 0x60) & 0x1F) << 5) +
2074 (( str[2] - 0x60) & 0x1F);
2077 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2078 const char *tag, const char *str)
2080 int64_t pos = avio_tell(pb);
2081 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2082 if (!t || !utf8len(t->value))
2084 avio_wb32(pb, 0); /* size */
2085 ffio_wfourcc(pb, tag); /* type */
2086 avio_wb32(pb, 0); /* version + flags */
2087 if (!strcmp(tag, "yrrc"))
2088 avio_wb16(pb, atoi(t->value));
2090 avio_wb16(pb, language_code("eng")); /* language */
2091 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2092 if (!strcmp(tag, "albm") &&
2093 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2094 avio_w8(pb, atoi(t->value));
2096 return update_size(pb, pos);
2099 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2101 int64_t pos = avio_tell(pb);
2102 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2104 avio_wb32(pb, 0); // size
2105 ffio_wfourcc(pb, "chpl");
2106 avio_wb32(pb, 0x01000000); // version + flags
2107 avio_wb32(pb, 0); // unknown
2108 avio_w8(pb, nb_chapters);
2110 for (i = 0; i < nb_chapters; i++) {
2111 AVChapter *c = s->chapters[i];
2112 AVDictionaryEntry *t;
2113 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2115 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2116 int len = FFMIN(strlen(t->value), 255);
2118 avio_write(pb, t->value, len);
2122 return update_size(pb, pos);
2125 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2128 AVIOContext *pb_buf;
2132 if (s->flags & AVFMT_FLAG_BITEXACT)
2135 ret = avio_open_dyn_buf(&pb_buf);
2139 if (mov->mode & MODE_3GP) {
2140 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2141 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2142 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2143 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2144 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2145 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2146 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2147 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2148 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2149 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2150 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2151 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2152 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2153 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2154 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2155 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2156 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2157 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2159 /* iTunes meta data */
2160 mov_write_meta_tag(pb_buf, mov, s);
2163 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2164 mov_write_chpl_tag(pb_buf, s);
2166 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2167 avio_wb32(pb, size + 8);
2168 ffio_wfourcc(pb, "udta");
2169 avio_write(pb, buf, size);
2176 static void mov_write_psp_udta_tag(AVIOContext *pb,
2177 const char *str, const char *lang, int type)
2179 int len = utf8len(str) + 1;
2182 avio_wb16(pb, len * 2 + 10); /* size */
2183 avio_wb32(pb, type); /* type */
2184 avio_wb16(pb, language_code(lang)); /* language */
2185 avio_wb16(pb, 0x01); /* ? */
2186 ascii_to_wc(pb, str);
2189 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2191 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2195 pos = avio_tell(pb);
2196 avio_wb32(pb, 0); /* size placeholder*/
2197 ffio_wfourcc(pb, "uuid");
2198 ffio_wfourcc(pb, "USMT");
2199 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2200 avio_wb32(pb, 0xbb88695c);
2201 avio_wb32(pb, 0xfac9c740);
2203 pos2 = avio_tell(pb);
2204 avio_wb32(pb, 0); /* size placeholder*/
2205 ffio_wfourcc(pb, "MTDT");
2209 avio_wb16(pb, 0x0C); /* size */
2210 avio_wb32(pb, 0x0B); /* type */
2211 avio_wb16(pb, language_code("und")); /* language */
2212 avio_wb16(pb, 0x0); /* ? */
2213 avio_wb16(pb, 0x021C); /* data */
2215 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2216 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2217 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2219 update_size(pb, pos2);
2220 return update_size(pb, pos);
2226 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2230 int64_t pos = avio_tell(pb);
2231 avio_wb32(pb, 0); /* size placeholder*/
2232 ffio_wfourcc(pb, "moov");
2234 for (i = 0; i < mov->nb_streams; i++) {
2235 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2238 mov->tracks[i].time = mov->time;
2239 mov->tracks[i].track_id = i + 1;
2242 if (mov->chapter_track)
2243 for (i = 0; i < s->nb_streams; i++) {
2244 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2245 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2247 for (i = 0; i < mov->nb_streams; i++) {
2248 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2249 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2250 mov->tracks[i].tref_id =
2251 mov->tracks[mov->tracks[i].src_track].track_id;
2255 mov_write_mvhd_tag(pb, mov);
2256 if (mov->mode != MODE_MOV && !mov->iods_skip)
2257 mov_write_iods_tag(pb, mov);
2258 for (i = 0; i < mov->nb_streams; i++) {
2259 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2260 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2263 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2264 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2266 if (mov->mode == MODE_PSP)
2267 mov_write_uuidusmt_tag(pb, s);
2269 mov_write_udta_tag(pb, mov, s);
2271 return update_size(pb, pos);
2274 static void param_write_int(AVIOContext *pb, const char *name, int value)
2276 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2279 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2281 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2284 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2287 len = FFMIN(sizeof(buf) / 2 - 1, len);
2288 ff_data_to_hex(buf, value, len, 0);
2289 buf[2 * len] = '\0';
2290 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2293 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2295 int64_t pos = avio_tell(pb);
2297 const uint8_t uuid[] = {
2298 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2299 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2303 ffio_wfourcc(pb, "uuid");
2304 avio_write(pb, uuid, sizeof(uuid));
2307 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2308 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2309 avio_printf(pb, "<head>\n");
2310 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2312 avio_printf(pb, "</head>\n");
2313 avio_printf(pb, "<body>\n");
2314 avio_printf(pb, "<switch>\n");
2315 for (i = 0; i < mov->nb_streams; i++) {
2316 MOVTrack *track = &mov->tracks[i];
2318 /* track->track_id is initialized in write_moov, and thus isn't known
2320 int track_id = i + 1;
2322 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2324 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2329 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2330 track->enc->bit_rate);
2331 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2332 param_write_int(pb, "trackID", track_id);
2333 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2334 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2336 int size = track->enc->extradata_size;
2337 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2339 param_write_hex(pb, "CodecPrivateData",
2340 ptr ? ptr : track->enc->extradata,
2344 param_write_string(pb, "FourCC", "H264");
2345 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2346 param_write_string(pb, "FourCC", "WVC1");
2347 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2348 track->enc->extradata_size);
2350 param_write_int(pb, "MaxWidth", track->enc->width);
2351 param_write_int(pb, "MaxHeight", track->enc->height);
2352 param_write_int(pb, "DisplayWidth", track->enc->width);
2353 param_write_int(pb, "DisplayHeight", track->enc->height);
2355 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2356 param_write_string(pb, "FourCC", "AACL");
2357 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2358 param_write_string(pb, "FourCC", "WMAP");
2360 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2361 track->enc->extradata_size);
2362 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2363 track->enc->codec_id));
2364 param_write_int(pb, "Channels", track->enc->channels);
2365 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2366 param_write_int(pb, "BitsPerSample", 16);
2367 param_write_int(pb, "PacketSize", track->enc->block_align ?
2368 track->enc->block_align : 4);
2370 avio_printf(pb, "</%s>\n", type);
2372 avio_printf(pb, "</switch>\n");
2373 avio_printf(pb, "</body>\n");
2374 avio_printf(pb, "</smil>\n");
2376 return update_size(pb, pos);
2379 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2382 ffio_wfourcc(pb, "mfhd");
2384 avio_wb32(pb, mov->fragments);
2388 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2389 MOVTrack *track, int64_t moof_offset)
2391 int64_t pos = avio_tell(pb);
2392 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2393 MOV_TFHD_BASE_DATA_OFFSET;
2394 if (!track->entry) {
2395 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2397 flags |= MOV_TFHD_DEFAULT_FLAGS;
2399 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2400 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2401 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2402 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2403 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2406 /* Don't set a default sample size, the silverlight player refuses
2407 * to play files with that set. Don't set a default sample duration,
2408 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2409 * file format says it MUST NOT be set. */
2410 if (track->mode == MODE_ISM)
2411 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2412 MOV_TFHD_BASE_DATA_OFFSET);
2414 avio_wb32(pb, 0); /* size placeholder */
2415 ffio_wfourcc(pb, "tfhd");
2416 avio_w8(pb, 0); /* version */
2417 avio_wb24(pb, flags);
2419 avio_wb32(pb, track->track_id); /* track-id */
2420 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2421 avio_wb64(pb, moof_offset);
2422 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2423 track->default_duration = get_cluster_duration(track, 0);
2424 avio_wb32(pb, track->default_duration);
2426 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2427 track->default_size = track->entry ? track->cluster[0].size : 1;
2428 avio_wb32(pb, track->default_size);
2430 track->default_size = -1;
2432 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2433 track->default_sample_flags =
2434 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2435 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2436 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2437 avio_wb32(pb, track->default_sample_flags);
2440 return update_size(pb, pos);
2443 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2445 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2446 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2449 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2450 MOVTrack *track, int moof_size)
2452 int64_t pos = avio_tell(pb);
2453 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2456 for (i = 0; i < track->entry; i++) {
2457 if (get_cluster_duration(track, i) != track->default_duration)
2458 flags |= MOV_TRUN_SAMPLE_DURATION;
2459 if (track->cluster[i].size != track->default_size)
2460 flags |= MOV_TRUN_SAMPLE_SIZE;
2461 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2462 flags |= MOV_TRUN_SAMPLE_FLAGS;
2464 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2465 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2466 if (track->flags & MOV_TRACK_CTTS)
2467 flags |= MOV_TRUN_SAMPLE_CTS;
2469 avio_wb32(pb, 0); /* size placeholder */
2470 ffio_wfourcc(pb, "trun");
2471 avio_w8(pb, 0); /* version */
2472 avio_wb24(pb, flags);
2474 avio_wb32(pb, track->entry); /* sample count */
2475 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2476 !(mov->flags & (FF_MOV_FLAG_SEPARATE_MOOF | FF_MOV_FLAG_DEFAULT_BASE_MOOF)) &&
2478 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2480 avio_wb32(pb, moof_size + 8 + track->data_offset +
2481 track->cluster[0].pos); /* data offset */
2482 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2483 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2485 for (i = 0; i < track->entry; i++) {
2486 if (flags & MOV_TRUN_SAMPLE_DURATION)
2487 avio_wb32(pb, get_cluster_duration(track, i));
2488 if (flags & MOV_TRUN_SAMPLE_SIZE)
2489 avio_wb32(pb, track->cluster[i].size);
2490 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2491 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2492 if (flags & MOV_TRUN_SAMPLE_CTS)
2493 avio_wb32(pb, track->cluster[i].cts);
2496 mov->first_trun = 0;
2497 return update_size(pb, pos);
2500 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2502 int64_t pos = avio_tell(pb);
2503 const uint8_t uuid[] = {
2504 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2505 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2508 avio_wb32(pb, 0); /* size placeholder */
2509 ffio_wfourcc(pb, "uuid");
2510 avio_write(pb, uuid, sizeof(uuid));
2513 avio_wb64(pb, track->frag_start);
2514 avio_wb64(pb, track->start_dts + track->track_duration -
2515 track->cluster[0].dts);
2517 return update_size(pb, pos);
2520 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2521 MOVTrack *track, int entry)
2523 int n = track->nb_frag_info - 1 - entry, i;
2524 int size = 8 + 16 + 4 + 1 + 16*n;
2525 const uint8_t uuid[] = {
2526 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2527 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2533 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2534 avio_wb32(pb, size);
2535 ffio_wfourcc(pb, "uuid");
2536 avio_write(pb, uuid, sizeof(uuid));
2540 for (i = 0; i < n; i++) {
2541 int index = entry + 1 + i;
2542 avio_wb64(pb, track->frag_info[index].time);
2543 avio_wb64(pb, track->frag_info[index].duration);
2545 if (n < mov->ism_lookahead) {
2546 int free_size = 16 * (mov->ism_lookahead - n);
2547 avio_wb32(pb, free_size);
2548 ffio_wfourcc(pb, "free");
2549 for (i = 0; i < free_size - 8; i++)
2556 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2559 int64_t pos = avio_tell(pb);
2561 for (i = 0; i < mov->ism_lookahead; i++) {
2562 /* Update the tfrf tag for the last ism_lookahead fragments,
2563 * nb_frag_info - 1 is the next fragment to be written. */
2564 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2566 avio_seek(pb, pos, SEEK_SET);
2570 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2572 int64_t pos = avio_tell(pb);
2574 avio_wb32(pb, 0); /* size */
2575 ffio_wfourcc(pb, "tfdt");
2576 avio_w8(pb, 1); /* version */
2578 avio_wb64(pb, track->frag_start);
2579 return update_size(pb, pos);
2582 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2583 MOVTrack *track, int64_t moof_offset,
2586 int64_t pos = avio_tell(pb);
2587 avio_wb32(pb, 0); /* size placeholder */
2588 ffio_wfourcc(pb, "traf");
2590 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2591 if (mov->mode != MODE_ISM)
2592 mov_write_tfdt_tag(pb, track);
2593 mov_write_trun_tag(pb, mov, track, moof_size);
2594 if (mov->mode == MODE_ISM) {
2595 mov_write_tfxd_tag(pb, track);
2597 if (mov->ism_lookahead) {
2598 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2600 track->tfrf_offset = avio_tell(pb);
2601 avio_wb32(pb, 8 + size);
2602 ffio_wfourcc(pb, "free");
2603 for (i = 0; i < size; i++)
2608 return update_size(pb, pos);
2611 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2612 int tracks, int moof_size)
2614 int64_t pos = avio_tell(pb);
2617 avio_wb32(pb, 0); /* size placeholder */
2618 ffio_wfourcc(pb, "moof");
2619 mov->first_trun = 1;
2621 mov_write_mfhd_tag(pb, mov);
2622 for (i = 0; i < mov->nb_streams; i++) {
2623 MOVTrack *track = &mov->tracks[i];
2624 if (tracks >= 0 && i != tracks)
2628 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2631 return update_size(pb, pos);
2634 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2636 AVIOContext *avio_buf;
2639 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2641 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2642 moof_size = ffio_close_null_buf(avio_buf);
2643 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2646 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2648 int64_t pos = avio_tell(pb);
2651 avio_wb32(pb, 0); /* size placeholder */
2652 ffio_wfourcc(pb, "tfra");
2653 avio_w8(pb, 1); /* version */
2656 avio_wb32(pb, track->track_id);
2657 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2658 avio_wb32(pb, track->nb_frag_info);
2659 for (i = 0; i < track->nb_frag_info; i++) {
2660 avio_wb64(pb, track->frag_info[i].time);
2661 avio_wb64(pb, track->frag_info[i].offset);
2662 avio_w8(pb, 1); /* traf number */
2663 avio_w8(pb, 1); /* trun number */
2664 avio_w8(pb, 1); /* sample number */
2667 return update_size(pb, pos);
2670 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2672 int64_t pos = avio_tell(pb);
2675 avio_wb32(pb, 0); /* size placeholder */
2676 ffio_wfourcc(pb, "mfra");
2677 /* An empty mfra atom is enough to indicate to the publishing point that
2678 * the stream has ended. */
2679 if (mov->flags & FF_MOV_FLAG_ISML)
2680 return update_size(pb, pos);
2682 for (i = 0; i < mov->nb_streams; i++) {
2683 MOVTrack *track = &mov->tracks[i];
2684 if (track->nb_frag_info)
2685 mov_write_tfra_tag(pb, track);
2689 ffio_wfourcc(pb, "mfro");
2690 avio_wb32(pb, 0); /* version + flags */
2691 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2693 return update_size(pb, pos);
2696 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2698 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2699 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2701 mov->mdat_pos = avio_tell(pb);
2702 avio_wb32(pb, 0); /* size placeholder*/
2703 ffio_wfourcc(pb, "mdat");
2707 /* TODO: This needs to be more general */
2708 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2710 MOVMuxContext *mov = s->priv_data;
2711 int64_t pos = avio_tell(pb);
2712 int has_h264 = 0, has_video = 0;
2716 for (i = 0; i < s->nb_streams; i++) {
2717 AVStream *st = s->streams[i];
2718 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2720 if (st->codec->codec_id == AV_CODEC_ID_H264)
2724 avio_wb32(pb, 0); /* size */
2725 ffio_wfourcc(pb, "ftyp");
2727 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2728 ffio_wfourcc(pb, mov->major_brand);
2729 else if (mov->mode == MODE_3GP) {
2730 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2731 minor = has_h264 ? 0x100 : 0x200;
2732 } else if (mov->mode & MODE_3G2) {
2733 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2734 minor = has_h264 ? 0x20000 : 0x10000;
2735 } else if (mov->mode == MODE_PSP)
2736 ffio_wfourcc(pb, "MSNV");
2737 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2738 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2739 else if (mov->mode == MODE_MP4)
2740 ffio_wfourcc(pb, "isom");
2741 else if (mov->mode == MODE_IPOD)
2742 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2743 else if (mov->mode == MODE_ISM)
2744 ffio_wfourcc(pb, "isml");
2745 else if (mov->mode == MODE_F4V)
2746 ffio_wfourcc(pb, "f4v ");
2748 ffio_wfourcc(pb, "qt ");
2750 avio_wb32(pb, minor);
2752 if (mov->mode == MODE_MOV)
2753 ffio_wfourcc(pb, "qt ");
2754 else if (mov->mode == MODE_ISM) {
2755 ffio_wfourcc(pb, "piff");
2756 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
2757 ffio_wfourcc(pb, "isom");
2758 ffio_wfourcc(pb, "iso2");
2760 ffio_wfourcc(pb, "avc1");
2763 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
2764 // brand. This is compatible with users that don't understand tfdt.
2765 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
2766 ffio_wfourcc(pb, "iso6");
2768 if (mov->mode == MODE_3GP)
2769 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2770 else if (mov->mode & MODE_3G2)
2771 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2772 else if (mov->mode == MODE_PSP)
2773 ffio_wfourcc(pb, "MSNV");
2774 else if (mov->mode == MODE_MP4)
2775 ffio_wfourcc(pb, "mp41");
2776 return update_size(pb, pos);
2779 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2781 AVStream *video_st = s->streams[0];
2782 AVCodecContext *video_codec = s->streams[0]->codec;
2783 AVCodecContext *audio_codec = s->streams[1]->codec;
2784 int audio_rate = audio_codec->sample_rate;
2785 // TODO: should be avg_frame_rate
2786 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
2787 int audio_kbitrate = audio_codec->bit_rate / 1000;
2788 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2790 avio_wb32(pb, 0x94); /* size */
2791 ffio_wfourcc(pb, "uuid");
2792 ffio_wfourcc(pb, "PROF");
2794 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2795 avio_wb32(pb, 0xbb88695c);
2796 avio_wb32(pb, 0xfac9c740);
2798 avio_wb32(pb, 0x0); /* ? */
2799 avio_wb32(pb, 0x3); /* 3 sections ? */
2801 avio_wb32(pb, 0x14); /* size */
2802 ffio_wfourcc(pb, "FPRF");
2803 avio_wb32(pb, 0x0); /* ? */
2804 avio_wb32(pb, 0x0); /* ? */
2805 avio_wb32(pb, 0x0); /* ? */
2807 avio_wb32(pb, 0x2c); /* size */
2808 ffio_wfourcc(pb, "APRF"); /* audio */
2810 avio_wb32(pb, 0x2); /* TrackID */
2811 ffio_wfourcc(pb, "mp4a");
2812 avio_wb32(pb, 0x20f);
2814 avio_wb32(pb, audio_kbitrate);
2815 avio_wb32(pb, audio_kbitrate);
2816 avio_wb32(pb, audio_rate);
2817 avio_wb32(pb, audio_codec->channels);
2819 avio_wb32(pb, 0x34); /* size */
2820 ffio_wfourcc(pb, "VPRF"); /* video */
2822 avio_wb32(pb, 0x1); /* TrackID */
2823 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2824 ffio_wfourcc(pb, "avc1");
2825 avio_wb16(pb, 0x014D);
2826 avio_wb16(pb, 0x0015);
2828 ffio_wfourcc(pb, "mp4v");
2829 avio_wb16(pb, 0x0000);
2830 avio_wb16(pb, 0x0103);
2833 avio_wb32(pb, video_kbitrate);
2834 avio_wb32(pb, video_kbitrate);
2835 avio_wb32(pb, frame_rate);
2836 avio_wb32(pb, frame_rate);
2837 avio_wb16(pb, video_codec->width);
2838 avio_wb16(pb, video_codec->height);
2839 avio_wb32(pb, 0x010001); /* ? */
2842 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2845 int i, closed_gop = 0;
2847 for (i = 0; i < pkt->size - 4; i++) {
2848 c = (c << 8) + pkt->data[i];
2849 if (c == 0x1b8) { // gop
2850 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2851 } else if (c == 0x100) { // pic
2852 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2853 if (!temp_ref || closed_gop) // I picture is not reordered
2854 *flags = MOV_SYNC_SAMPLE;
2856 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2863 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2865 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2866 int seq = 0, entry = 0;
2867 int key = pkt->flags & AV_PKT_FLAG_KEY;
2868 start = find_next_marker(pkt->data, end);
2869 for (next = start; next < end; start = next) {
2870 next = find_next_marker(start + 4, end);
2871 switch (AV_RB32(start)) {
2872 case VC1_CODE_SEQHDR:
2875 case VC1_CODE_ENTRYPOINT:
2878 case VC1_CODE_SLICE:
2879 trk->vc1_info.slices = 1;
2883 if (!trk->entry && !fragment) {
2884 /* First packet in first fragment */
2885 trk->vc1_info.first_packet_seq = seq;
2886 trk->vc1_info.first_packet_entry = entry;
2887 } else if ((seq && !trk->vc1_info.packet_seq) ||
2888 (entry && !trk->vc1_info.packet_entry)) {
2890 for (i = 0; i < trk->entry; i++)
2891 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2892 trk->has_keyframes = 0;
2894 trk->vc1_info.packet_seq = 1;
2896 trk->vc1_info.packet_entry = 1;
2898 /* First fragment */
2899 if ((!seq || trk->vc1_info.first_packet_seq) &&
2900 (!entry || trk->vc1_info.first_packet_entry)) {
2901 /* First packet had the same headers as this one, readd the
2902 * sync sample flag. */
2903 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2904 trk->has_keyframes = 1;
2908 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2910 else if (trk->vc1_info.packet_seq)
2912 else if (trk->vc1_info.packet_entry)
2915 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2916 trk->has_keyframes++;
2920 static int mov_flush_fragment(AVFormatContext *s)
2922 MOVMuxContext *mov = s->priv_data;
2923 int i, first_track = -1;
2924 int64_t mdat_size = 0;
2926 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2929 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2930 int64_t pos = avio_tell(s->pb);
2932 AVIOContext *moov_buf;
2936 for (i = 0; i < mov->nb_streams; i++)
2937 if (!mov->tracks[i].entry)
2939 /* Don't write the initial moov unless all tracks have data */
2940 if (i < mov->nb_streams)
2943 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
2945 mov_write_moov_tag(moov_buf, mov, s);
2946 buf_size = ffio_close_null_buf(moov_buf);
2947 for (i = 0; i < mov->nb_streams; i++)
2948 mov->tracks[i].data_offset = pos + buf_size + 8;
2950 mov_write_moov_tag(s->pb, mov, s);
2952 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2953 mov->mdat_buf = NULL;
2954 avio_wb32(s->pb, buf_size + 8);
2955 ffio_wfourcc(s->pb, "mdat");
2956 avio_write(s->pb, buf, buf_size);
2961 for (i = 0; i < mov->nb_streams; i++) {
2962 if (mov->tracks[i].entry)
2963 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2964 mov->tracks[i].track_duration -
2965 mov->tracks[i].cluster[0].dts;
2966 mov->tracks[i].entry = 0;
2972 for (i = 0; i < mov->nb_streams; i++) {
2973 MOVTrack *track = &mov->tracks[i];
2974 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2975 track->data_offset = 0;
2977 track->data_offset = mdat_size;
2978 if (!track->mdat_buf)
2980 mdat_size += avio_tell(track->mdat_buf);
2981 if (first_track < 0)
2988 for (i = 0; i < mov->nb_streams; i++) {
2989 MOVTrack *track = &mov->tracks[i];
2990 int buf_size, write_moof = 1, moof_tracks = -1;
2992 int64_t duration = 0;
2995 duration = track->start_dts + track->track_duration -
2996 track->cluster[0].dts;
2997 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2998 if (!track->mdat_buf)
3000 mdat_size = avio_tell(track->mdat_buf);
3003 write_moof = i == first_track;
3007 MOVFragmentInfo *info;
3009 track->nb_frag_info++;
3010 if (track->nb_frag_info >= track->frag_info_capacity) {
3011 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
3012 if (av_reallocp_array(&track->frag_info,
3014 sizeof(*track->frag_info)))
3015 return AVERROR(ENOMEM);
3016 track->frag_info_capacity = new_capacity;
3018 info = &track->frag_info[track->nb_frag_info - 1];
3019 info->offset = avio_tell(s->pb);
3020 info->time = track->frag_start;
3021 info->duration = duration;
3022 mov_write_tfrf_tags(s->pb, mov, track);
3024 mov_write_moof_tag(s->pb, mov, moof_tracks);
3025 info->tfrf_offset = track->tfrf_offset;
3028 avio_wb32(s->pb, mdat_size + 8);
3029 ffio_wfourcc(s->pb, "mdat");
3033 track->frag_start += duration;
3035 if (!track->mdat_buf)
3037 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3038 track->mdat_buf = NULL;
3040 avio_write(s->pb, buf, buf_size);
3050 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3052 MOVMuxContext *mov = s->priv_data;
3053 AVIOContext *pb = s->pb;
3054 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3055 AVCodecContext *enc = trk->enc;
3056 unsigned int samples_in_chunk = 0;
3057 int size = pkt->size;
3058 uint8_t *reformatted_data = NULL;
3060 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3062 if (mov->fragments > 0) {
3063 if (!trk->mdat_buf) {
3064 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3069 if (!mov->mdat_buf) {
3070 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3077 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3078 /* We must find out how many AMR blocks there are in one packet */
3079 static uint16_t packed_size[16] =
3080 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3083 while (len < size && samples_in_chunk < 100) {
3084 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3087 if (samples_in_chunk > 1) {
3088 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3091 } else if (trk->sample_size)
3092 samples_in_chunk = size / trk->sample_size;
3094 samples_in_chunk = 1;
3096 /* copy extradata if it exists */
3097 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3098 trk->vos_len = enc->extradata_size;
3099 trk->vos_data = av_malloc(trk->vos_len);
3100 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3103 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3104 /* from x264 or from bytestream h264 */
3105 /* nal reformating needed */
3106 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3107 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3109 avio_write(pb, reformatted_data, size);
3111 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3113 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3114 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3115 /* extradata is Annex B, assume the bitstream is too and convert it */
3116 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3117 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3118 avio_write(pb, reformatted_data, size);
3120 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3123 avio_write(pb, pkt->data, size);
3126 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3127 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3128 /* copy frame to create needed atoms */
3129 trk->vos_len = size;
3130 trk->vos_data = av_malloc(size);
3132 return AVERROR(ENOMEM);
3133 memcpy(trk->vos_data, pkt->data, size);
3136 if (trk->entry >= trk->cluster_capacity) {
3137 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3138 if (av_reallocp_array(&trk->cluster, new_capacity,
3139 sizeof(*trk->cluster)))
3140 return AVERROR(ENOMEM);
3141 trk->cluster_capacity = new_capacity;
3144 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3145 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3146 trk->cluster[trk->entry].size = size;
3147 trk->cluster[trk->entry].entries = samples_in_chunk;
3148 trk->cluster[trk->entry].dts = pkt->dts;
3149 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3150 /* First packet of a new fragment. We already wrote the duration
3151 * of the last packet of the previous fragment based on track_duration,
3152 * which might not exactly match our dts. Therefore adjust the dts
3153 * of this packet to be what the previous packets duration implies. */
3154 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3156 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3157 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3158 /* Not using edit lists and shifting the first track to start from zero.
3159 * If the other streams start from a later timestamp, we won't be able
3160 * to signal the difference in starting time without an edit list.
3161 * Thus move the timestamp for this first sample to 0, increasing
3162 * its duration instead. */
3163 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3165 if (trk->start_dts == AV_NOPTS_VALUE) {
3166 trk->start_dts = pkt->dts;
3167 if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3168 av_log(s, AV_LOG_WARNING,
3169 "Track %d starts with a nonzero dts %"PRId64". This "
3170 "currently isn't handled correctly in combination with "
3171 "empty_moov.\n", pkt->stream_index, pkt->dts);
3173 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3175 if (pkt->pts == AV_NOPTS_VALUE) {
3176 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3177 pkt->pts = pkt->dts;
3179 if (pkt->dts != pkt->pts)
3180 trk->flags |= MOV_TRACK_CTTS;
3181 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3182 trk->cluster[trk->entry].flags = 0;
3183 if (enc->codec_id == AV_CODEC_ID_VC1) {
3184 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3185 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3186 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3187 trk->entry > 0) { // force sync sample for the first key frame
3188 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3189 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3190 trk->flags |= MOV_TRACK_STPS;
3192 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3194 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3195 trk->has_keyframes++;
3198 trk->sample_count += samples_in_chunk;
3199 mov->mdat_size += size;
3201 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3202 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3203 reformatted_data, size);
3204 av_free(reformatted_data);
3208 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3211 mov_flush_fragment(s);
3214 MOVMuxContext *mov = s->priv_data;
3215 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3216 AVCodecContext *enc = trk->enc;
3217 int64_t frag_duration = 0;
3218 int size = pkt->size;
3221 return 0; /* Discard 0 sized packets */
3224 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3225 s->streams[pkt->stream_index]->time_base,
3227 if ((mov->max_fragment_duration &&
3228 frag_duration >= mov->max_fragment_duration) ||
3229 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3230 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3231 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3232 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3233 if (frag_duration >= mov->min_fragment_duration)
3234 mov_flush_fragment(s);
3237 return ff_mov_write_packet(s, pkt);
3241 // QuickTime chapters involve an additional text track with the chapter names
3242 // as samples, and a tref pointing from the other tracks to the chapter one.
3243 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3245 MOVMuxContext *mov = s->priv_data;
3246 MOVTrack *track = &mov->tracks[tracknum];
3247 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3249 // These properties are required to make QT recognize the chapter track
3250 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3252 track->mode = mov->mode;
3253 track->tag = MKTAG('t','e','x','t');
3254 track->timescale = MOV_TIMESCALE;
3255 track->enc = avcodec_alloc_context3(NULL);
3257 return AVERROR(ENOMEM);
3258 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3259 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3260 if (!track->enc->extradata)
3261 return AVERROR(ENOMEM);
3262 track->enc->extradata_size = sizeof(chapter_properties);
3263 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3265 for (i = 0; i < s->nb_chapters; i++) {
3266 AVChapter *c = s->chapters[i];
3267 AVDictionaryEntry *t;
3269 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3270 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3271 pkt.duration = end - pkt.dts;
3273 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3274 const char encd[12] = {
3275 0x00, 0x00, 0x00, 0x0C,
3277 0x00, 0x00, 0x01, 0x00 };
3278 len = strlen(t->value);
3279 pkt.size = len + 2 + 12;
3280 pkt.data = av_malloc(pkt.size);
3282 return AVERROR(ENOMEM);
3283 AV_WB16(pkt.data, len);
3284 memcpy(pkt.data + 2, t->value, len);
3285 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3286 ff_mov_write_packet(s, &pkt);
3287 av_freep(&pkt.data);
3295 * st->disposition controls the "enabled" flag in the tkhd tag.
3296 * QuickTime will not play a track if it is not enabled. So make sure
3297 * that one track of each type (audio, video, subtitle) is enabled.
3299 * Subtitles are special. For audio and video, setting "enabled" also
3300 * makes the track "default" (i.e. it is rendered when played). For
3301 * subtitles, an "enabled" subtitle is not rendered by default, but
3302 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3305 static void enable_tracks(AVFormatContext *s)
3307 MOVMuxContext *mov = s->priv_data;
3309 int enabled[AVMEDIA_TYPE_NB];
3310 int first[AVMEDIA_TYPE_NB];
3312 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3317 for (i = 0; i < s->nb_streams; i++) {
3318 AVStream *st = s->streams[i];
3320 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3321 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3324 if (first[st->codec->codec_type] < 0)
3325 first[st->codec->codec_type] = i;
3326 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3327 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3328 enabled[st->codec->codec_type]++;
3332 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3334 case AVMEDIA_TYPE_VIDEO:
3335 case AVMEDIA_TYPE_AUDIO:
3336 case AVMEDIA_TYPE_SUBTITLE:
3338 mov->per_stream_grouping = 1;
3339 if (!enabled[i] && first[i] >= 0)
3340 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3346 static void mov_free(AVFormatContext *s)
3348 MOVMuxContext *mov = s->priv_data;
3351 if (mov->chapter_track) {
3352 if (mov->tracks[mov->chapter_track].enc)
3353 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3354 av_freep(&mov->tracks[mov->chapter_track].enc);
3357 for (i = 0; i < mov->nb_streams; i++) {
3358 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3359 ff_mov_close_hinting(&mov->tracks[i]);
3360 av_freep(&mov->tracks[i].cluster);
3361 av_freep(&mov->tracks[i].frag_info);
3363 if (mov->tracks[i].vos_len)
3364 av_free(mov->tracks[i].vos_data);
3367 av_freep(&mov->tracks);
3370 static uint32_t rgb_to_yuv(uint32_t rgb)
3375 r = (rgb >> 16) & 0xFF;
3376 g = (rgb >> 8) & 0xFF;
3379 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3380 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3381 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3383 return (y << 16) | (cr << 8) | cb;
3386 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3389 int i, width = 720, height = 480;
3390 int have_palette = 0, have_size = 0;
3391 uint32_t palette[16];
3392 char *cur = st->codec->extradata;
3394 while (cur && *cur) {
3395 if (strncmp("palette:", cur, 8) == 0) {
3397 count = sscanf(cur + 8,
3398 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3399 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3400 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3401 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3402 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3403 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3404 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3405 &palette[12], &palette[13], &palette[14], &palette[15]);
3407 for (i = 0; i < count; i++) {
3408 palette[i] = rgb_to_yuv(palette[i]);
3411 } else if (!strncmp("size:", cur, 5)) {
3412 sscanf(cur + 5, "%dx%d", &width, &height);
3415 if (have_palette && have_size)
3417 cur += strcspn(cur, "\n\r");
3418 cur += strspn(cur, "\n\r");
3421 track->vos_data = av_malloc(16*4);
3422 if (!track->vos_data)
3423 return AVERROR(ENOMEM);
3424 for (i = 0; i < 16; i++) {
3425 AV_WB32(track->vos_data + i * 4, palette[i]);
3427 track->vos_len = 16 * 4;
3429 st->codec->width = width;
3430 st->codec->height = track->height = height;
3435 static int mov_write_header(AVFormatContext *s)
3437 AVIOContext *pb = s->pb;
3438 MOVMuxContext *mov = s->priv_data;
3439 AVDictionaryEntry *t;
3440 int i, hint_track = 0;
3444 /* Default mode == MP4 */
3445 mov->mode = MODE_MP4;
3448 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3449 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3450 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3451 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3452 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3453 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3454 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3457 /* Set the FRAGMENT flag if any of the fragmentation methods are
3459 if (mov->max_fragment_duration || mov->max_fragment_size ||
3460 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3461 FF_MOV_FLAG_FRAG_KEYFRAME |
3462 FF_MOV_FLAG_FRAG_CUSTOM))
3463 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3465 /* Set other implicit flags immediately */
3466 if (mov->mode == MODE_ISM)
3467 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3468 FF_MOV_FLAG_FRAGMENT;
3470 /* faststart: moov at the beginning of the file, if supported */
3471 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3472 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3473 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3474 "with fragmentation, disabling faststart\n");
3475 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3479 if (mov->use_editlist < 0) {
3480 mov->use_editlist = 1;
3481 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3482 // If we can avoid needing an edit list by shifting the
3483 // tracks, prefer that over (trying to) write edit lists
3484 // in fragmented output.
3485 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3486 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3487 mov->use_editlist = 0;
3490 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && mov->use_editlist)
3491 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov\n");
3493 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3494 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3496 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3497 * is enabled, we don't support non-seekable output at all. */
3498 if (!s->pb->seekable &&
3499 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3500 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3501 return AVERROR(EINVAL);
3505 mov_write_ftyp_tag(pb,s);
3506 if (mov->mode == MODE_PSP) {
3507 if (s->nb_streams != 2) {
3508 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3509 return AVERROR(EINVAL);
3511 mov_write_uuidprof_tag(pb, s);
3514 mov->nb_streams = s->nb_streams;
3515 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3516 mov->chapter_track = mov->nb_streams++;
3518 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3519 /* Add hint tracks for each audio and video stream */
3520 hint_track = mov->nb_streams;
3521 for (i = 0; i < s->nb_streams; i++) {
3522 AVStream *st = s->streams[i];
3523 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3524 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3530 // Reserve an extra stream for chapters for the case where chapters
3531 // are written in the trailer
3532 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3534 return AVERROR(ENOMEM);
3536 for (i = 0; i < s->nb_streams; i++) {
3537 AVStream *st= s->streams[i];
3538 MOVTrack *track= &mov->tracks[i];
3539 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3542 track->enc = st->codec;
3543 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3544 if (track->language < 0)
3545 track->language = 0;
3546 track->mode = mov->mode;
3547 track->tag = mov_find_codec_tag(s, track);
3549 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3550 "codec not currently supported in container\n", i);
3553 /* If hinting of this track is enabled by a later hint track,
3554 * this is updated. */
3555 track->hint_track = -1;
3556 track->start_dts = AV_NOPTS_VALUE;
3557 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3558 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3559 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3560 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3561 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3562 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3565 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3567 track->timescale = st->time_base.den;
3568 if (track->mode == MODE_MOV && track->timescale > 100000)
3569 av_log(s, AV_LOG_WARNING,
3570 "WARNING codec timebase is very high. If duration is too long,\n"
3571 "file may not be playable by quicktime. Specify a shorter timebase\n"
3572 "or choose different container.\n");
3573 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3574 track->timescale = st->codec->sample_rate;
3575 /* set sample_size for PCM and ADPCM */
3576 if (av_get_bits_per_sample(st->codec->codec_id) ||
3577 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3578 if (!st->codec->block_align) {
3579 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3582 track->sample_size = st->codec->block_align;
3584 /* set audio_vbr for compressed audio */
3585 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3586 track->audio_vbr = 1;
3588 if (track->mode != MODE_MOV &&
3589 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3590 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3591 i, track->enc->sample_rate);
3594 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3595 track->timescale = st->time_base.den;
3596 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3597 track->timescale = st->time_base.den;
3600 track->height = st->codec->height;
3601 /* The ism specific timescale isn't mandatory, but is assumed by
3602 * some tools, such as mp4split. */
3603 if (mov->mode == MODE_ISM)
3604 track->timescale = 10000000;
3606 avpriv_set_pts_info(st, 64, 1, track->timescale);
3608 /* copy extradata if it exists */
3609 if (st->codec->extradata_size) {
3610 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
3611 mov_create_dvd_sub_decoder_specific_info(track, st);
3613 track->vos_len = st->codec->extradata_size;
3614 track->vos_data = av_malloc(track->vos_len);
3615 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3622 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3623 /* If no fragmentation options have been set, set a default. */
3624 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3625 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3626 !mov->max_fragment_duration && !mov->max_fragment_size)
3627 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3629 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3630 mov->reserved_moov_pos = avio_tell(pb);
3631 mov_write_mdat_tag(pb, mov);
3634 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3635 mov->time = ff_iso8601_to_unix_time(t->value);
3637 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3639 if (mov->chapter_track)
3640 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3643 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3644 /* Initialize the hint tracks for each audio and video stream */
3645 for (i = 0; i < s->nb_streams; i++) {
3646 AVStream *st = s->streams[i];
3647 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3648 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3649 ff_mov_init_hinting(s, hint_track, i);
3657 if (mov->flags & FF_MOV_FLAG_ISML)
3658 mov_write_isml_manifest(pb, mov);
3660 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3661 mov_write_moov_tag(pb, mov, s);
3671 static int get_moov_size(AVFormatContext *s)
3674 AVIOContext *moov_buf;
3675 MOVMuxContext *mov = s->priv_data;
3677 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3679 mov_write_moov_tag(moov_buf, mov, s);
3680 return ffio_close_null_buf(moov_buf);
3684 * This function gets the moov size if moved to the top of the file: the chunk
3685 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3686 * entries) when the moov is moved to the beginning, so the size of the moov
3687 * would change. It also updates the chunk offset tables.
3689 static int compute_moov_size(AVFormatContext *s)
3691 int i, moov_size, moov_size2;
3692 MOVMuxContext *mov = s->priv_data;
3694 moov_size = get_moov_size(s);
3698 for (i = 0; i < mov->nb_streams; i++)
3699 mov->tracks[i].data_offset += moov_size;
3701 moov_size2 = get_moov_size(s);
3705 /* if the size changed, we just switched from stco to co64 and need to
3706 * update the offsets */
3707 if (moov_size2 != moov_size)
3708 for (i = 0; i < mov->nb_streams; i++)
3709 mov->tracks[i].data_offset += moov_size2 - moov_size;
3714 static int shift_data(AVFormatContext *s)
3716 int ret = 0, moov_size;
3717 MOVMuxContext *mov = s->priv_data;
3718 int64_t pos, pos_end = avio_tell(s->pb);
3719 uint8_t *buf, *read_buf[2];
3720 int read_buf_id = 0;
3722 AVIOContext *read_pb;
3724 moov_size = compute_moov_size(s);
3728 buf = av_malloc(moov_size * 2);
3730 return AVERROR(ENOMEM);
3732 read_buf[1] = buf + moov_size;
3734 /* Shift the data: the AVIO context of the output can only be used for
3735 * writing, so we re-open the same output, but for reading. It also avoids
3736 * a read/seek/write/seek back and forth. */
3738 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3740 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3741 "the second pass (faststart)\n", s->filename);
3745 /* mark the end of the shift to up to the last data we wrote, and get ready
3747 pos_end = avio_tell(s->pb);
3748 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3750 /* start reading at where the new moov will be placed */
3751 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3752 pos = avio_tell(read_pb);
3754 #define READ_BLOCK do { \
3755 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3759 /* shift data by chunk of at most moov_size */
3764 n = read_size[read_buf_id];
3767 avio_write(s->pb, read_buf[read_buf_id], n);
3769 } while (pos < pos_end);
3770 avio_close(read_pb);
3777 static int mov_write_trailer(AVFormatContext *s)
3779 MOVMuxContext *mov = s->priv_data;
3780 AVIOContext *pb = s->pb;
3785 // If there were no chapters when the header was written, but there
3786 // are chapters now, write them in the trailer. This only works
3787 // when we are not doing fragments.
3788 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3789 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3790 mov->chapter_track = mov->nb_streams++;
3791 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3796 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3797 moov_pos = avio_tell(pb);
3799 /* Write size of mdat tag */
3800 if (mov->mdat_size + 8 <= UINT32_MAX) {
3801 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3802 avio_wb32(pb, mov->mdat_size + 8);
3804 /* overwrite 'wide' placeholder atom */
3805 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3806 /* special value: real atom size will be 64 bit value after
3809 ffio_wfourcc(pb, "mdat");
3810 avio_wb64(pb, mov->mdat_size + 16);
3812 avio_seek(pb, moov_pos, SEEK_SET);
3814 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3815 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
3816 res = shift_data(s);
3818 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
3819 mov_write_moov_tag(pb, mov, s);
3822 mov_write_moov_tag(pb, mov, s);
3825 mov_flush_fragment(s);
3826 mov_write_mfra_tag(pb, mov);
3829 for (i = 0; i < mov->nb_streams; i++) {
3830 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3831 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3832 int64_t off = avio_tell(pb);
3834 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3835 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3836 avio_write(pb, buf, 7);
3837 avio_seek(pb, off, SEEK_SET);
3848 #if CONFIG_MOV_MUXER
3850 AVOutputFormat ff_mov_muxer = {
3852 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3853 .extensions = "mov",
3854 .priv_data_size = sizeof(MOVMuxContext),
3855 .audio_codec = AV_CODEC_ID_AAC,
3856 .video_codec = CONFIG_LIBX264_ENCODER ?
3857 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3858 .write_header = mov_write_header,
3859 .write_packet = mov_write_packet,
3860 .write_trailer = mov_write_trailer,
3861 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3862 .codec_tag = (const AVCodecTag* const []){
3863 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
3865 .priv_class = &mov_muxer_class,
3868 #if CONFIG_TGP_MUXER
3870 AVOutputFormat ff_tgp_muxer = {
3872 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3873 .extensions = "3gp",
3874 .priv_data_size = sizeof(MOVMuxContext),
3875 .audio_codec = AV_CODEC_ID_AMR_NB,
3876 .video_codec = AV_CODEC_ID_H263,
3877 .write_header = mov_write_header,
3878 .write_packet = mov_write_packet,
3879 .write_trailer = mov_write_trailer,
3880 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3881 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3882 .priv_class = &tgp_muxer_class,
3885 #if CONFIG_MP4_MUXER
3887 AVOutputFormat ff_mp4_muxer = {
3889 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3890 .mime_type = "application/mp4",
3891 .extensions = "mp4",
3892 .priv_data_size = sizeof(MOVMuxContext),
3893 .audio_codec = AV_CODEC_ID_AAC,
3894 .video_codec = CONFIG_LIBX264_ENCODER ?
3895 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3896 .write_header = mov_write_header,
3897 .write_packet = mov_write_packet,
3898 .write_trailer = mov_write_trailer,
3899 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3900 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3901 .priv_class = &mp4_muxer_class,
3904 #if CONFIG_PSP_MUXER
3906 AVOutputFormat ff_psp_muxer = {
3908 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3909 .extensions = "mp4,psp",
3910 .priv_data_size = sizeof(MOVMuxContext),
3911 .audio_codec = AV_CODEC_ID_AAC,
3912 .video_codec = CONFIG_LIBX264_ENCODER ?
3913 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3914 .write_header = mov_write_header,
3915 .write_packet = mov_write_packet,
3916 .write_trailer = mov_write_trailer,
3917 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3918 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3919 .priv_class = &psp_muxer_class,
3922 #if CONFIG_TG2_MUXER
3924 AVOutputFormat ff_tg2_muxer = {
3926 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3927 .extensions = "3g2",
3928 .priv_data_size = sizeof(MOVMuxContext),
3929 .audio_codec = AV_CODEC_ID_AMR_NB,
3930 .video_codec = AV_CODEC_ID_H263,
3931 .write_header = mov_write_header,
3932 .write_packet = mov_write_packet,
3933 .write_trailer = mov_write_trailer,
3934 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3935 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3936 .priv_class = &tg2_muxer_class,
3939 #if CONFIG_IPOD_MUXER
3941 AVOutputFormat ff_ipod_muxer = {
3943 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3944 .mime_type = "application/mp4",
3945 .extensions = "m4v,m4a",
3946 .priv_data_size = sizeof(MOVMuxContext),
3947 .audio_codec = AV_CODEC_ID_AAC,
3948 .video_codec = AV_CODEC_ID_H264,
3949 .write_header = mov_write_header,
3950 .write_packet = mov_write_packet,
3951 .write_trailer = mov_write_trailer,
3952 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3953 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3954 .priv_class = &ipod_muxer_class,
3957 #if CONFIG_ISMV_MUXER
3959 AVOutputFormat ff_ismv_muxer = {
3961 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3962 .mime_type = "application/mp4",
3963 .extensions = "ismv,isma",
3964 .priv_data_size = sizeof(MOVMuxContext),
3965 .audio_codec = AV_CODEC_ID_AAC,
3966 .video_codec = AV_CODEC_ID_H264,
3967 .write_header = mov_write_header,
3968 .write_packet = mov_write_packet,
3969 .write_trailer = mov_write_trailer,
3970 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3971 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3972 .priv_class = &ismv_muxer_class,
3975 #if CONFIG_F4V_MUXER
3977 AVOutputFormat ff_f4v_muxer = {
3979 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
3980 .mime_type = "application/f4v",
3981 .extensions = "f4v",
3982 .priv_data_size = sizeof(MOVMuxContext),
3983 .audio_codec = AV_CODEC_ID_AAC,
3984 .video_codec = AV_CODEC_ID_H264,
3985 .write_header = mov_write_header,
3986 .write_packet = mov_write_packet,
3987 .write_trailer = mov_write_trailer,
3988 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3989 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
3990 .priv_class = &f4v_muxer_class,