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", 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 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
65 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
66 { "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},
67 { "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},
68 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69 { "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},
70 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71 { "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},
72 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
73 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
74 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
78 #define MOV_CLASS(flavor)\
79 static const AVClass flavor ## _muxer_class = {\
80 .class_name = #flavor " muxer",\
81 .item_name = av_default_item_name,\
83 .version = LIBAVUTIL_VERSION_INT,\
86 static int utf8len(const uint8_t *b)
91 GET_UTF8(val, *b++, return -1;)
97 //FIXME support 64 bit variant with wide placeholders
98 static int64_t update_size(AVIOContext *pb, int64_t pos)
100 int64_t curpos = avio_tell(pb);
101 avio_seek(pb, pos, SEEK_SET);
102 avio_wb32(pb, curpos - pos); /* rewrite size */
103 avio_seek(pb, curpos, SEEK_SET);
108 static int co64_required(const MOVTrack *track)
110 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
115 /* Chunk offset atom */
116 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
119 int mode64 = co64_required(track); // use 32 bit size variant if possible
120 int64_t pos = avio_tell(pb);
121 avio_wb32(pb, 0); /* size */
123 ffio_wfourcc(pb, "co64");
125 ffio_wfourcc(pb, "stco");
126 avio_wb32(pb, 0); /* version & flags */
127 avio_wb32(pb, track->entry); /* entry count */
128 for (i = 0; i < track->entry; i++) {
130 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
132 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
134 return update_size(pb, pos);
137 /* Sample size atom */
138 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
141 int i, j, entries = 0, tst = -1, oldtst = -1;
143 int64_t pos = avio_tell(pb);
144 avio_wb32(pb, 0); /* size */
145 ffio_wfourcc(pb, "stsz");
146 avio_wb32(pb, 0); /* version & flags */
148 for (i = 0; i < track->entry; i++) {
149 tst = track->cluster[i].size / track->cluster[i].entries;
150 if (oldtst != -1 && tst != oldtst)
153 entries += track->cluster[i].entries;
155 if (equalChunks && track->entry) {
156 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
157 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
158 avio_wb32(pb, sSize); // sample size
159 avio_wb32(pb, entries); // sample count
161 avio_wb32(pb, 0); // sample size
162 avio_wb32(pb, entries); // sample count
163 for (i = 0; i < track->entry; i++) {
164 for (j = 0; j < track->cluster[i].entries; j++) {
165 avio_wb32(pb, track->cluster[i].size /
166 track->cluster[i].entries);
170 return update_size(pb, pos);
173 /* Sample to chunk atom */
174 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
176 int index = 0, oldval = -1, i;
177 int64_t entryPos, curpos;
179 int64_t pos = avio_tell(pb);
180 avio_wb32(pb, 0); /* size */
181 ffio_wfourcc(pb, "stsc");
182 avio_wb32(pb, 0); // version & flags
183 entryPos = avio_tell(pb);
184 avio_wb32(pb, track->entry); // entry count
185 for (i = 0; i < track->entry; i++) {
186 if (oldval != track->cluster[i].samples_in_chunk) {
187 avio_wb32(pb, i + 1); // first chunk
188 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
189 avio_wb32(pb, 0x1); // sample description index
190 oldval = track->cluster[i].samples_in_chunk;
194 curpos = avio_tell(pb);
195 avio_seek(pb, entryPos, SEEK_SET);
196 avio_wb32(pb, index); // rewrite size
197 avio_seek(pb, curpos, SEEK_SET);
199 return update_size(pb, pos);
202 /* Sync sample atom */
203 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
205 int64_t curpos, entryPos;
207 int64_t pos = avio_tell(pb);
208 avio_wb32(pb, 0); // size
209 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
210 avio_wb32(pb, 0); // version & flags
211 entryPos = avio_tell(pb);
212 avio_wb32(pb, track->entry); // entry count
213 for (i = 0; i < track->entry; i++) {
214 if (track->cluster[i].flags & flag) {
215 avio_wb32(pb, i + 1);
219 curpos = avio_tell(pb);
220 avio_seek(pb, entryPos, SEEK_SET);
221 avio_wb32(pb, index); // rewrite size
222 avio_seek(pb, curpos, SEEK_SET);
223 return update_size(pb, pos);
226 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
228 avio_wb32(pb, 0x11); /* size */
229 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
230 else ffio_wfourcc(pb, "damr");
231 ffio_wfourcc(pb, "FFMP");
232 avio_w8(pb, 0); /* decoder version */
234 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
235 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
236 avio_w8(pb, 0x01); /* Frames per sample */
240 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
245 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
247 if (track->vos_len < 7)
251 ffio_wfourcc(pb, "dac3");
253 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
254 fscod = get_bits(&gbc, 2);
255 frmsizecod = get_bits(&gbc, 6);
256 bsid = get_bits(&gbc, 5);
257 bsmod = get_bits(&gbc, 3);
258 acmod = get_bits(&gbc, 3);
260 skip_bits(&gbc, 2); // dsurmod
262 if ((acmod & 1) && acmod != 1)
263 skip_bits(&gbc, 2); // cmixlev
265 skip_bits(&gbc, 2); // surmixlev
267 lfeon = get_bits1(&gbc);
269 init_put_bits(&pbc, buf, sizeof(buf));
270 put_bits(&pbc, 2, fscod);
271 put_bits(&pbc, 5, bsid);
272 put_bits(&pbc, 3, bsmod);
273 put_bits(&pbc, 3, acmod);
274 put_bits(&pbc, 1, lfeon);
275 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
276 put_bits(&pbc, 5, 0); // reserved
278 flush_put_bits(&pbc);
279 avio_write(pb, buf, sizeof(buf));
285 * This function writes extradata "as is".
286 * Extradata must be formatted like a valid atom (with size and tag).
288 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
290 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
291 return track->enc->extradata_size;
294 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
299 avio_w8(pb, (size >> (7 * i)) | 0x80);
300 avio_w8(pb, size & 0x7F);
303 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
305 int64_t pos = avio_tell(pb);
306 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
308 avio_wb32(pb, 0); // size
309 ffio_wfourcc(pb, "esds");
310 avio_wb32(pb, 0); // Version
313 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
314 avio_wb16(pb, track->track_id);
315 avio_w8(pb, 0x00); // flags (= no flags)
317 // DecoderConfig descriptor
318 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
320 // Object type indication
321 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
322 track->enc->codec_id == AV_CODEC_ID_MP3) &&
323 track->enc->sample_rate > 24000)
324 avio_w8(pb, 0x6B); // 11172-3
326 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
328 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
329 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
330 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
331 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
332 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
333 avio_w8(pb, 0x15); // flags (= Audiostream)
335 avio_w8(pb, 0x11); // flags (= Visualstream)
337 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
339 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
340 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
341 track->enc->rc_min_rate == 0)
342 avio_wb32(pb, 0); // vbr
344 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
346 if (track->vos_len) {
347 // DecoderSpecific info descriptor
348 put_descr(pb, 0x05, track->vos_len);
349 avio_write(pb, track->vos_data, track->vos_len);
353 put_descr(pb, 0x06, 1);
355 return update_size(pb, pos);
358 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
360 int64_t pos = avio_tell(pb);
362 avio_wl32(pb, track->tag); // store it byteswapped
363 track->enc->codec_tag = av_bswap16(track->tag >> 16);
364 ff_put_wav_header(pb, track->enc);
365 return update_size(pb, pos);
368 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
370 int64_t pos = avio_tell(pb);
372 ffio_wfourcc(pb, "wfex");
373 ff_put_wav_header(pb, track->enc);
374 return update_size(pb, pos);
377 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
379 uint32_t layout_tag, bitmap;
380 int64_t pos = avio_tell(pb);
382 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
383 track->enc->channel_layout,
386 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
387 "lack of channel information\n");
391 avio_wb32(pb, 0); // Size
392 ffio_wfourcc(pb, "chan"); // Type
393 avio_w8(pb, 0); // Version
394 avio_wb24(pb, 0); // Flags
395 avio_wb32(pb, layout_tag); // mChannelLayoutTag
396 avio_wb32(pb, bitmap); // mChannelBitmap
397 avio_wb32(pb, 0); // mNumberChannelDescriptions
399 return update_size(pb, pos);
402 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
404 int64_t pos = avio_tell(pb);
406 avio_wb32(pb, 0); /* size */
407 ffio_wfourcc(pb, "wave");
409 avio_wb32(pb, 12); /* size */
410 ffio_wfourcc(pb, "frma");
411 avio_wl32(pb, track->tag);
413 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
414 /* useless atom needed by mplayer, ipod, not needed by quicktime */
415 avio_wb32(pb, 12); /* size */
416 ffio_wfourcc(pb, "mp4a");
418 mov_write_esds_tag(pb, track);
419 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
420 mov_write_amr_tag(pb, track);
421 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
422 mov_write_ac3_tag(pb, track);
423 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
424 mov_write_extradata_tag(pb, track);
425 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
426 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
427 mov_write_ms_tag(pb, track);
430 avio_wb32(pb, 8); /* size */
431 avio_wb32(pb, 0); /* null tag */
433 return update_size(pb, pos);
436 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
439 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
440 int unescaped_size, seq_found = 0;
441 int level = 0, interlace = 0;
442 int packet_seq = track->vc1_info.packet_seq;
443 int packet_entry = track->vc1_info.packet_entry;
444 int slices = track->vc1_info.slices;
447 if (track->start_dts == AV_NOPTS_VALUE) {
448 /* No packets written yet, vc1_info isn't authoritative yet. */
449 /* Assume inline sequence and entry headers. This will be
450 * overwritten at the end if the file is seekable. */
451 packet_seq = packet_entry = 1;
454 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
456 return AVERROR(ENOMEM);
457 start = find_next_marker(track->vos_data, end);
458 for (next = start; next < end; start = next) {
461 next = find_next_marker(start + 4, end);
462 size = next - start - 4;
465 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
466 init_get_bits(&gb, unescaped, 8 * unescaped_size);
467 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
468 int profile = get_bits(&gb, 2);
469 if (profile != PROFILE_ADVANCED) {
471 return AVERROR(ENOSYS);
474 level = get_bits(&gb, 3);
475 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
477 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
478 skip_bits(&gb, 1); /* broadcast */
479 interlace = get_bits1(&gb);
480 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
485 return AVERROR(ENOSYS);
488 init_put_bits(&pbc, buf, 7);
489 /* VC1DecSpecStruc */
490 put_bits(&pbc, 4, 12); /* profile - advanced */
491 put_bits(&pbc, 3, level);
492 put_bits(&pbc, 1, 0); /* reserved */
493 /* VC1AdvDecSpecStruc */
494 put_bits(&pbc, 3, level);
495 put_bits(&pbc, 1, 0); /* cbr */
496 put_bits(&pbc, 6, 0); /* reserved */
497 put_bits(&pbc, 1, !interlace); /* no interlace */
498 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
499 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
500 put_bits(&pbc, 1, !slices); /* no slice code */
501 put_bits(&pbc, 1, 0); /* no bframe */
502 put_bits(&pbc, 1, 0); /* reserved */
505 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
506 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
508 put_bits32(&pbc, 0xffffffff);
510 flush_put_bits(&pbc);
517 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
519 uint8_t buf[7] = { 0 };
522 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
525 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
526 ffio_wfourcc(pb, "dvc1");
527 track->vc1_info.struct_offset = avio_tell(pb);
528 avio_write(pb, buf, sizeof(buf));
529 avio_write(pb, track->vos_data, track->vos_len);
534 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
536 avio_wb32(pb, track->vos_len + 8);
537 ffio_wfourcc(pb, "glbl");
538 avio_write(pb, track->vos_data, track->vos_len);
539 return 8 + track->vos_len;
543 * Compute flags for 'lpcm' tag.
544 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
546 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
549 case AV_CODEC_ID_PCM_F32BE:
550 case AV_CODEC_ID_PCM_F64BE:
552 case AV_CODEC_ID_PCM_F32LE:
553 case AV_CODEC_ID_PCM_F64LE:
555 case AV_CODEC_ID_PCM_U8:
557 case AV_CODEC_ID_PCM_S16BE:
558 case AV_CODEC_ID_PCM_S24BE:
559 case AV_CODEC_ID_PCM_S32BE:
561 case AV_CODEC_ID_PCM_S8:
562 case AV_CODEC_ID_PCM_S16LE:
563 case AV_CODEC_ID_PCM_S24LE:
564 case AV_CODEC_ID_PCM_S32LE:
571 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
575 if (cluster_idx >= track->entry)
578 if (cluster_idx + 1 == track->entry)
579 next_dts = track->track_duration + track->start_dts;
581 next_dts = track->cluster[cluster_idx + 1].dts;
583 return next_dts - track->cluster[cluster_idx].dts;
586 static int get_samples_per_packet(MOVTrack *track)
588 int i, first_duration;
590 /* use 1 for raw PCM */
591 if (!track->audio_vbr)
594 /* check to see if duration is constant for all clusters */
597 first_duration = get_cluster_duration(track, 0);
598 for (i = 1; i < track->entry; i++) {
599 if (get_cluster_duration(track, i) != first_duration)
602 return first_duration;
605 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
607 int64_t pos = avio_tell(pb);
609 uint32_t tag = track->tag;
611 if (track->mode == MODE_MOV) {
612 if (mov_get_lpcm_flags(track->enc->codec_id))
613 tag = AV_RL32("lpcm");
617 avio_wb32(pb, 0); /* size */
618 avio_wl32(pb, tag); // store it byteswapped
619 avio_wb32(pb, 0); /* Reserved */
620 avio_wb16(pb, 0); /* Reserved */
621 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
623 /* SoundDescription */
624 avio_wb16(pb, version); /* Version */
625 avio_wb16(pb, 0); /* Revision level */
626 avio_wb32(pb, 0); /* Reserved */
631 avio_wb16(pb, 0xfffe);
633 avio_wb32(pb, 0x00010000);
635 avio_wb64(pb, av_double2int(track->enc->sample_rate));
636 avio_wb32(pb, track->enc->channels);
637 avio_wb32(pb, 0x7F000000);
638 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
639 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
640 avio_wb32(pb, track->sample_size);
641 avio_wb32(pb, get_samples_per_packet(track));
643 /* reserved for mp4/3gp */
648 avio_wb16(pb, 0); /* packet size (= 0) */
649 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
650 track->enc->sample_rate : 0);
651 avio_wb16(pb, 0); /* Reserved */
654 if (track->mode == MODE_MOV &&
655 (track->enc->codec_id == AV_CODEC_ID_AAC ||
656 track->enc->codec_id == AV_CODEC_ID_AC3 ||
657 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
658 track->enc->codec_id == AV_CODEC_ID_ALAC ||
659 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
660 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
661 mov_write_wave_tag(pb, track);
662 else if (track->tag == MKTAG('m','p','4','a'))
663 mov_write_esds_tag(pb, track);
664 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
665 mov_write_amr_tag(pb, track);
666 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
667 mov_write_ac3_tag(pb, track);
668 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
669 mov_write_extradata_tag(pb, track);
670 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
671 mov_write_wfex_tag(pb, track);
672 else if (track->vos_len > 0)
673 mov_write_glbl_tag(pb, track);
675 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
676 mov_write_chan_tag(pb, track);
678 return update_size(pb, pos);
681 static int mov_write_d263_tag(AVIOContext *pb)
683 avio_wb32(pb, 0xf); /* size */
684 ffio_wfourcc(pb, "d263");
685 ffio_wfourcc(pb, "FFMP");
686 avio_w8(pb, 0); /* decoder version */
687 /* FIXME use AVCodecContext level/profile, when encoder will set values */
688 avio_w8(pb, 0xa); /* level */
689 avio_w8(pb, 0); /* profile */
693 /* TODO: No idea about these values */
694 static int mov_write_svq3_tag(AVIOContext *pb)
697 ffio_wfourcc(pb, "SMI ");
698 ffio_wfourcc(pb, "SEQH");
700 avio_wb32(pb, 0xe2c0211d);
701 avio_wb32(pb, 0xc0000000);
706 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
708 int64_t pos = avio_tell(pb);
711 ffio_wfourcc(pb, "avcC");
712 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
713 return update_size(pb, pos);
716 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
718 int64_t pos = avio_tell(pb);
721 ffio_wfourcc(pb, "hvcC");
722 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
723 return update_size(pb, pos);
726 /* also used by all avid codecs (dv, imx, meridien) and their variants */
727 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
730 avio_wb32(pb, 24); /* size */
731 ffio_wfourcc(pb, "ACLR");
732 ffio_wfourcc(pb, "ACLR");
733 ffio_wfourcc(pb, "0001");
734 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
735 avio_wb32(pb, 0); /* unknown */
737 avio_wb32(pb, 24); /* size */
738 ffio_wfourcc(pb, "APRG");
739 ffio_wfourcc(pb, "APRG");
740 ffio_wfourcc(pb, "0001");
741 avio_wb32(pb, 1); /* unknown */
742 avio_wb32(pb, 0); /* unknown */
744 avio_wb32(pb, 120); /* size */
745 ffio_wfourcc(pb, "ARES");
746 ffio_wfourcc(pb, "ARES");
747 ffio_wfourcc(pb, "0001");
748 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
749 avio_wb32(pb, track->enc->width);
750 /* values below are based on samples created with quicktime and avid codecs */
751 if (track->vos_data[5] & 2) { // interlaced
752 avio_wb32(pb, track->enc->height / 2);
753 avio_wb32(pb, 2); /* unknown */
754 avio_wb32(pb, 0); /* unknown */
755 avio_wb32(pb, 4); /* unknown */
757 avio_wb32(pb, track->enc->height);
758 avio_wb32(pb, 1); /* unknown */
759 avio_wb32(pb, 0); /* unknown */
760 if (track->enc->height == 1080)
761 avio_wb32(pb, 5); /* unknown */
763 avio_wb32(pb, 6); /* unknown */
766 for (i = 0; i < 10; i++)
769 /* extra padding for stsd needed */
774 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
776 int tag = track->enc->codec_tag;
778 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
781 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
782 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
783 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
784 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
785 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
786 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
787 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
788 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
789 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
794 static const AVCodecTag codec_ipod_tags[] = {
795 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
796 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
797 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
798 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
799 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
800 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
801 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
802 { AV_CODEC_ID_NONE, 0 },
805 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
807 int tag = track->enc->codec_tag;
809 // keep original tag for subs, ipod supports both formats
810 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
811 (tag == MKTAG('t', 'x', '3', 'g') ||
812 tag == MKTAG('t', 'e', 'x', 't'))))
813 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
815 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
816 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
817 "Quicktime/Ipod might not play the file\n");
822 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
826 if (track->enc->width == 720) /* SD */
827 if (track->enc->height == 480) /* NTSC */
828 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
829 else tag = MKTAG('d','v','c',' ');
830 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
831 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
832 else tag = MKTAG('d','v','p','p');
833 else if (track->enc->height == 720) /* HD 720 line */
834 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
835 else tag = MKTAG('d','v','h','p');
836 else if (track->enc->height == 1080) /* HD 1080 line */
837 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
838 else tag = MKTAG('d','v','h','6');
840 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
847 static const struct {
848 enum AVPixelFormat pix_fmt;
851 } mov_pix_fmt_tags[] = {
852 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
853 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
854 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
855 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
856 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
857 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
858 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
859 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
860 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
861 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
862 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
863 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
864 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
865 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
868 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
870 int tag = track->enc->codec_tag;
873 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
874 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
875 tag = mov_pix_fmt_tags[i].tag;
876 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
884 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
886 int tag = track->enc->codec_tag;
888 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
889 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
890 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
891 track->enc->codec_id == AV_CODEC_ID_H263 ||
892 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
893 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
894 tag = mov_get_dv_codec_tag(s, track);
895 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
896 tag = mov_get_rawvideo_codec_tag(s, track);
897 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
898 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
899 if (!tag) { // if no mac fcc found, try with Microsoft tags
900 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
902 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
903 "the file may be unplayable!\n");
905 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
906 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
907 if (!tag) { // if no mac fcc found, try with Microsoft tags
908 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
910 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
911 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
912 "the file may be unplayable!\n");
915 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
916 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
922 static const AVCodecTag codec_3gp_tags[] = {
923 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
924 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
925 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
926 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
927 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
928 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
929 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
930 { AV_CODEC_ID_NONE, 0 },
933 static const AVCodecTag codec_f4v_tags[] = {
934 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
935 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
936 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
937 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
938 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
939 { AV_CODEC_ID_NONE, 0 },
942 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
946 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
947 tag = mp4_get_codec_tag(s, track);
948 else if (track->mode == MODE_ISM) {
949 tag = mp4_get_codec_tag(s, track);
950 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
951 tag = MKTAG('w', 'm', 'a', ' ');
952 } else if (track->mode == MODE_IPOD)
953 tag = ipod_get_codec_tag(s, track);
954 else if (track->mode & MODE_3GP)
955 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
956 else if (track->mode == MODE_F4V)
957 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
959 tag = mov_get_codec_tag(s, track);
965 * Needed to make file play in iPods running newest firmware
966 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
968 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
971 ffio_wfourcc(pb, "uuid");
972 avio_wb32(pb, 0x6b6840f2);
973 avio_wb32(pb, 0x5f244fc5);
974 avio_wb32(pb, 0xba39a51b);
975 avio_wb32(pb, 0xcf0323f3);
980 static const uint16_t fiel_data[] = {
981 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
984 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
986 unsigned mov_field_order = 0;
987 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
988 mov_field_order = fiel_data[track->enc->field_order];
992 ffio_wfourcc(pb, "fiel");
993 avio_wb16(pb, mov_field_order);
997 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
999 int64_t pos = avio_tell(pb);
1000 avio_wb32(pb, 0); /* size */
1001 avio_wl32(pb, track->tag); // store it byteswapped
1002 avio_wb32(pb, 0); /* Reserved */
1003 avio_wb16(pb, 0); /* Reserved */
1004 avio_wb16(pb, 1); /* Data-reference index */
1006 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1007 mov_write_esds_tag(pb, track);
1008 else if (track->enc->extradata_size)
1009 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1011 return update_size(pb, pos);
1014 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1017 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1018 track->enc->sample_aspect_ratio.den, INT_MAX);
1021 ffio_wfourcc(pb, "pasp");
1022 avio_wb32(pb, sar.num);
1023 avio_wb32(pb, sar.den);
1027 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1029 AVDictionaryEntry *encoder;
1030 int64_t pos = avio_tell(pb);
1031 char compressor_name[32] = { 0 };
1033 avio_wb32(pb, 0); /* size */
1034 avio_wl32(pb, track->tag); // store it byteswapped
1035 avio_wb32(pb, 0); /* Reserved */
1036 avio_wb16(pb, 0); /* Reserved */
1037 avio_wb16(pb, 1); /* Data-reference index */
1039 avio_wb16(pb, 0); /* Codec stream version */
1040 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1041 if (track->mode == MODE_MOV) {
1042 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1043 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1044 avio_wb32(pb, 0); /* Temporal Quality */
1045 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1047 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1048 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1051 avio_wb32(pb, 0); /* Reserved */
1052 avio_wb32(pb, 0); /* Reserved */
1053 avio_wb32(pb, 0); /* Reserved */
1055 avio_wb16(pb, track->enc->width); /* Video width */
1056 avio_wb16(pb, track->height); /* Video height */
1057 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1058 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1059 avio_wb32(pb, 0); /* Data size (= 0) */
1060 avio_wb16(pb, 1); /* Frame count (= 1) */
1062 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1063 if (track->mode == MODE_MOV &&
1064 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1065 av_strlcpy(compressor_name, encoder->value, 32);
1066 avio_w8(pb, strlen(compressor_name));
1067 avio_write(pb, compressor_name, 31);
1069 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1070 avio_wb16(pb, track->enc->bits_per_coded_sample);
1072 avio_wb16(pb, 0x18); /* Reserved */
1073 avio_wb16(pb, 0xffff); /* Reserved */
1074 if (track->tag == MKTAG('m','p','4','v'))
1075 mov_write_esds_tag(pb, track);
1076 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1077 mov_write_d263_tag(pb);
1078 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1079 mov_write_svq3_tag(pb);
1080 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1081 mov_write_avid_tag(pb, track);
1082 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1083 mov_write_hvcc_tag(pb, track);
1084 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1085 mov_write_avcc_tag(pb, track);
1086 if (track->mode == MODE_IPOD)
1087 mov_write_uuid_tag_ipod(pb);
1088 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1089 mov_write_fiel_tag(pb, track);
1090 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1091 mov_write_dvc1_tag(pb, track);
1092 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1093 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1094 /* Don't write any potential extradata here - the cropping
1095 * is signalled via the normal width/height fields. */
1096 } else if (track->vos_len > 0)
1097 mov_write_glbl_tag(pb, track);
1099 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1100 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1101 mov_write_pasp_tag(pb, track);
1104 return update_size(pb, pos);
1107 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1109 int64_t pos = avio_tell(pb);
1110 avio_wb32(pb, 0); /* size */
1111 ffio_wfourcc(pb, "rtp ");
1112 avio_wb32(pb, 0); /* Reserved */
1113 avio_wb16(pb, 0); /* Reserved */
1114 avio_wb16(pb, 1); /* Data-reference index */
1116 avio_wb16(pb, 1); /* Hint track version */
1117 avio_wb16(pb, 1); /* Highest compatible version */
1118 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1120 avio_wb32(pb, 12); /* size */
1121 ffio_wfourcc(pb, "tims");
1122 avio_wb32(pb, track->timescale);
1124 return update_size(pb, pos);
1127 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1129 int64_t pos = avio_tell(pb);
1131 avio_wb32(pb, 0); /* size */
1132 ffio_wfourcc(pb, "tmcd"); /* Data format */
1133 avio_wb32(pb, 0); /* Reserved */
1134 avio_wb32(pb, 1); /* Data reference index */
1135 if (track->enc->extradata_size)
1136 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1137 return update_size(pb, pos);
1140 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1142 int64_t pos = avio_tell(pb);
1143 avio_wb32(pb, 0); /* size */
1144 ffio_wfourcc(pb, "stsd");
1145 avio_wb32(pb, 0); /* version & flags */
1146 avio_wb32(pb, 1); /* entry count */
1147 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1148 mov_write_video_tag(pb, track);
1149 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1150 mov_write_audio_tag(pb, track);
1151 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1152 mov_write_subtitle_tag(pb, track);
1153 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1154 mov_write_rtp_tag(pb, track);
1155 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1156 mov_write_tmcd_tag(pb, track);
1157 return update_size(pb, pos);
1160 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1162 MOVStts *ctts_entries;
1163 uint32_t entries = 0;
1167 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1168 ctts_entries[0].count = 1;
1169 ctts_entries[0].duration = track->cluster[0].cts;
1170 for (i = 1; i < track->entry; i++) {
1171 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1172 ctts_entries[entries].count++; /* compress */
1175 ctts_entries[entries].duration = track->cluster[i].cts;
1176 ctts_entries[entries].count = 1;
1179 entries++; /* last one */
1180 atom_size = 16 + (entries * 8);
1181 avio_wb32(pb, atom_size); /* size */
1182 ffio_wfourcc(pb, "ctts");
1183 avio_wb32(pb, 0); /* version & flags */
1184 avio_wb32(pb, entries); /* entry count */
1185 for (i = 0; i < entries; i++) {
1186 avio_wb32(pb, ctts_entries[i].count);
1187 avio_wb32(pb, ctts_entries[i].duration);
1189 av_free(ctts_entries);
1193 /* Time to sample atom */
1194 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1196 MOVStts *stts_entries;
1197 uint32_t entries = -1;
1201 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1202 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1203 stts_entries[0].count = track->sample_count;
1204 stts_entries[0].duration = 1;
1207 stts_entries = track->entry ?
1208 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1210 for (i = 0; i < track->entry; i++) {
1211 int duration = get_cluster_duration(track, i);
1212 if (i && duration == stts_entries[entries].duration) {
1213 stts_entries[entries].count++; /* compress */
1216 stts_entries[entries].duration = duration;
1217 stts_entries[entries].count = 1;
1220 entries++; /* last one */
1222 atom_size = 16 + (entries * 8);
1223 avio_wb32(pb, atom_size); /* size */
1224 ffio_wfourcc(pb, "stts");
1225 avio_wb32(pb, 0); /* version & flags */
1226 avio_wb32(pb, entries); /* entry count */
1227 for (i = 0; i < entries; i++) {
1228 avio_wb32(pb, stts_entries[i].count);
1229 avio_wb32(pb, stts_entries[i].duration);
1231 av_free(stts_entries);
1235 static int mov_write_dref_tag(AVIOContext *pb)
1237 avio_wb32(pb, 28); /* size */
1238 ffio_wfourcc(pb, "dref");
1239 avio_wb32(pb, 0); /* version & flags */
1240 avio_wb32(pb, 1); /* entry count */
1242 avio_wb32(pb, 0xc); /* size */
1243 ffio_wfourcc(pb, "url ");
1244 avio_wb32(pb, 1); /* version & flags */
1249 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1251 int64_t pos = avio_tell(pb);
1252 avio_wb32(pb, 0); /* size */
1253 ffio_wfourcc(pb, "stbl");
1254 mov_write_stsd_tag(pb, track);
1255 mov_write_stts_tag(pb, track);
1256 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1257 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1258 track->has_keyframes && track->has_keyframes < track->entry)
1259 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1260 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1261 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1262 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1263 track->flags & MOV_TRACK_CTTS)
1264 mov_write_ctts_tag(pb, track);
1265 mov_write_stsc_tag(pb, track);
1266 mov_write_stsz_tag(pb, track);
1267 mov_write_stco_tag(pb, track);
1268 return update_size(pb, pos);
1271 static int mov_write_dinf_tag(AVIOContext *pb)
1273 int64_t pos = avio_tell(pb);
1274 avio_wb32(pb, 0); /* size */
1275 ffio_wfourcc(pb, "dinf");
1276 mov_write_dref_tag(pb);
1277 return update_size(pb, pos);
1280 static int mov_write_nmhd_tag(AVIOContext *pb)
1283 ffio_wfourcc(pb, "nmhd");
1288 static int mov_write_gmhd_tag(AVIOContext *pb)
1290 avio_wb32(pb, 0x20); /* size */
1291 ffio_wfourcc(pb, "gmhd");
1292 avio_wb32(pb, 0x18); /* gmin size */
1293 ffio_wfourcc(pb, "gmin");/* generic media info */
1294 avio_wb32(pb, 0); /* version & flags */
1295 avio_wb16(pb, 0x40); /* graphics mode = */
1296 avio_wb16(pb, 0x8000); /* opColor (r?) */
1297 avio_wb16(pb, 0x8000); /* opColor (g?) */
1298 avio_wb16(pb, 0x8000); /* opColor (b?) */
1299 avio_wb16(pb, 0); /* balance */
1300 avio_wb16(pb, 0); /* reserved */
1304 static int mov_write_smhd_tag(AVIOContext *pb)
1306 avio_wb32(pb, 16); /* size */
1307 ffio_wfourcc(pb, "smhd");
1308 avio_wb32(pb, 0); /* version & flags */
1309 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1310 avio_wb16(pb, 0); /* reserved */
1314 static int mov_write_vmhd_tag(AVIOContext *pb)
1316 avio_wb32(pb, 0x14); /* size (always 0x14) */
1317 ffio_wfourcc(pb, "vmhd");
1318 avio_wb32(pb, 0x01); /* version & flags */
1319 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1323 static int is_clcp_track(MOVTrack *track)
1325 return track->tag == MKTAG('c','7','0','8') ||
1326 track->tag == MKTAG('c','6','0','8');
1329 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1331 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1332 int64_t pos = avio_tell(pb);
1336 descr = "DataHandler";
1339 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1340 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1342 descr = "VideoHandler";
1343 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1345 descr = "SoundHandler";
1346 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1347 if (track->tag == MKTAG('t','x','3','g')) {
1349 } else if (track->tag == MKTAG('m','p','4','s')) {
1351 } else if (is_clcp_track(track)) {
1356 descr = "SubtitleHandler";
1357 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1359 descr = "HintHandler";
1360 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1362 descr = "TimeCodeHandler";
1365 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1366 track->enc->codec_tag);
1368 av_log(track->enc, AV_LOG_WARNING,
1369 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1370 tag_buf, track->enc->codec_tag);
1373 // hdlr.name is used by some players to identify the content title
1374 // of the track. So if an alternate handler description is
1375 // specified, use it.
1376 AVDictionaryEntry *t;
1377 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1378 if (t && utf8len(t->value))
1383 avio_wb32(pb, 0); /* size */
1384 ffio_wfourcc(pb, "hdlr");
1385 avio_wb32(pb, 0); /* Version & flags */
1386 avio_write(pb, hdlr, 4); /* handler */
1387 ffio_wfourcc(pb, hdlr_type); /* handler type */
1388 avio_wb32(pb, 0); /* reserved */
1389 avio_wb32(pb, 0); /* reserved */
1390 avio_wb32(pb, 0); /* reserved */
1391 if (!track || track->mode == MODE_MOV)
1392 avio_w8(pb, strlen(descr)); /* pascal string */
1393 avio_write(pb, descr, strlen(descr)); /* handler description */
1394 if (track && track->mode != MODE_MOV)
1395 avio_w8(pb, 0); /* c string */
1396 return update_size(pb, pos);
1399 static int mov_write_hmhd_tag(AVIOContext *pb)
1401 /* This atom must be present, but leaving the values at zero
1402 * seems harmless. */
1403 avio_wb32(pb, 28); /* size */
1404 ffio_wfourcc(pb, "hmhd");
1405 avio_wb32(pb, 0); /* version, flags */
1406 avio_wb16(pb, 0); /* maxPDUsize */
1407 avio_wb16(pb, 0); /* avgPDUsize */
1408 avio_wb32(pb, 0); /* maxbitrate */
1409 avio_wb32(pb, 0); /* avgbitrate */
1410 avio_wb32(pb, 0); /* reserved */
1414 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1416 int64_t pos = avio_tell(pb);
1417 avio_wb32(pb, 0); /* size */
1418 ffio_wfourcc(pb, "minf");
1419 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1420 mov_write_vmhd_tag(pb);
1421 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1422 mov_write_smhd_tag(pb);
1423 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1424 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1425 mov_write_gmhd_tag(pb);
1427 mov_write_nmhd_tag(pb);
1429 } else if (track->tag == MKTAG('r','t','p',' ')) {
1430 mov_write_hmhd_tag(pb);
1431 } else if (track->tag == MKTAG('t','m','c','d')) {
1432 mov_write_gmhd_tag(pb);
1434 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1435 mov_write_hdlr_tag(pb, NULL);
1436 mov_write_dinf_tag(pb);
1437 mov_write_stbl_tag(pb, track);
1438 return update_size(pb, pos);
1441 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1444 int version = track->track_duration < INT32_MAX ? 0 : 1;
1446 if (track->mode == MODE_ISM)
1449 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1450 ffio_wfourcc(pb, "mdhd");
1451 avio_w8(pb, version);
1452 avio_wb24(pb, 0); /* flags */
1454 avio_wb64(pb, track->time);
1455 avio_wb64(pb, track->time);
1457 avio_wb32(pb, track->time); /* creation time */
1458 avio_wb32(pb, track->time); /* modification time */
1460 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1461 if (!track->entry && mov->mode == MODE_ISM)
1462 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1463 else if (!track->entry)
1464 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1466 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1467 avio_wb16(pb, track->language); /* language */
1468 avio_wb16(pb, 0); /* reserved (quality) */
1470 if (version != 0 && track->mode == MODE_MOV) {
1471 av_log(NULL, AV_LOG_ERROR,
1472 "FATAL error, file duration too long for timebase, this file will not be\n"
1473 "playable with quicktime. Choose a different timebase or a different\n"
1474 "container format\n");
1480 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
1483 int64_t pos = avio_tell(pb);
1484 avio_wb32(pb, 0); /* size */
1485 ffio_wfourcc(pb, "mdia");
1486 mov_write_mdhd_tag(pb, mov, track);
1487 mov_write_hdlr_tag(pb, track);
1488 mov_write_minf_tag(pb, track);
1489 return update_size(pb, pos);
1492 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1493 MOVTrack *track, AVStream *st)
1495 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1496 track->timescale, AV_ROUND_UP);
1497 int version = duration < INT32_MAX ? 0 : 1;
1498 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1503 if (mov->per_stream_grouping)
1506 group = st->codec->codec_type;
1509 if (track->flags & MOV_TRACK_ENABLED)
1510 flags |= MOV_TKHD_FLAG_ENABLED;
1512 if (track->mode == MODE_ISM)
1515 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1516 ffio_wfourcc(pb, "tkhd");
1517 avio_w8(pb, version);
1518 avio_wb24(pb, flags);
1520 avio_wb64(pb, track->time);
1521 avio_wb64(pb, track->time);
1523 avio_wb32(pb, track->time); /* creation time */
1524 avio_wb32(pb, track->time); /* modification time */
1526 avio_wb32(pb, track->track_id); /* track-id */
1527 avio_wb32(pb, 0); /* reserved */
1528 if (!track->entry && mov->mode == MODE_ISM)
1529 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1530 else if (!track->entry)
1531 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1533 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1535 avio_wb32(pb, 0); /* reserved */
1536 avio_wb32(pb, 0); /* reserved */
1537 avio_wb16(pb, 0); /* layer */
1538 avio_wb16(pb, group); /* alternate group) */
1539 /* Volume, only for audio */
1540 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1541 avio_wb16(pb, 0x0100);
1544 avio_wb16(pb, 0); /* reserved */
1546 /* Matrix structure */
1547 avio_wb32(pb, 0x00010000); /* reserved */
1548 avio_wb32(pb, 0x0); /* reserved */
1549 avio_wb32(pb, 0x0); /* reserved */
1550 avio_wb32(pb, 0x0); /* reserved */
1551 avio_wb32(pb, 0x00010000); /* reserved */
1552 avio_wb32(pb, 0x0); /* reserved */
1553 avio_wb32(pb, 0x0); /* reserved */
1554 avio_wb32(pb, 0x0); /* reserved */
1555 avio_wb32(pb, 0x40000000); /* reserved */
1557 /* Track width and height, for visual only */
1558 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1559 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1560 if (track->mode == MODE_MOV) {
1561 avio_wb32(pb, track->enc->width << 16);
1562 avio_wb32(pb, track->height << 16);
1564 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1565 if (!sample_aspect_ratio || track->height != track->enc->height)
1566 sample_aspect_ratio = 1;
1567 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1568 avio_wb32(pb, track->height * 0x10000);
1577 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1579 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1580 track->enc->sample_aspect_ratio.den);
1582 int64_t pos = avio_tell(pb);
1584 avio_wb32(pb, 0); /* size */
1585 ffio_wfourcc(pb, "tapt");
1588 ffio_wfourcc(pb, "clef");
1590 avio_wb32(pb, width << 16);
1591 avio_wb32(pb, track->enc->height << 16);
1594 ffio_wfourcc(pb, "prof");
1596 avio_wb32(pb, width << 16);
1597 avio_wb32(pb, track->enc->height << 16);
1600 ffio_wfourcc(pb, "enof");
1602 avio_wb32(pb, track->enc->width << 16);
1603 avio_wb32(pb, track->enc->height << 16);
1605 return update_size(pb, pos);
1608 // This box seems important for the psp playback ... without it the movie seems to hang
1609 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1612 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1613 track->timescale, AV_ROUND_UP);
1614 int version = duration < INT32_MAX ? 0 : 1;
1615 int entry_size, entry_count, size;
1616 int64_t delay, start_ct = track->cluster[0].cts;
1617 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1618 track->timescale, AV_ROUND_DOWN);
1619 version |= delay < INT32_MAX ? 0 : 1;
1621 entry_size = (version == 1) ? 20 : 12;
1622 entry_count = 1 + (delay > 0);
1623 size = 24 + entry_count * entry_size;
1625 /* write the atom data */
1626 avio_wb32(pb, size);
1627 ffio_wfourcc(pb, "edts");
1628 avio_wb32(pb, size - 8);
1629 ffio_wfourcc(pb, "elst");
1630 avio_w8(pb, version);
1631 avio_wb24(pb, 0); /* flags */
1633 avio_wb32(pb, entry_count);
1634 if (delay > 0) { /* add an empty edit to delay presentation */
1635 /* In the positive delay case, the delay includes the cts
1636 * offset, and the second edit list entry below trims out
1637 * the same amount from the actual content. This makes sure
1638 * that the offsetted last sample is included in the edit
1639 * list duration as well. */
1641 avio_wb64(pb, delay);
1644 avio_wb32(pb, delay);
1647 avio_wb32(pb, 0x00010000);
1649 /* Avoid accidentally ending up with start_ct = -1 which has got a
1650 * special meaning. Normally start_ct should end up positive or zero
1651 * here, but use FFMIN in case dts is a a small positive integer
1652 * rounded to 0 when represented in MOV_TIMESCALE units. */
1653 start_ct = -FFMIN(track->cluster[0].dts, 0);
1654 /* Note, this delay is calculated from the pts of the first sample,
1655 * ensuring that we don't reduce the duration for cases with
1660 /* For fragmented files, we don't know the full length yet. Setting
1661 * duration to 0 allows us to only specify the offset, including
1662 * the rest of the content (from all future fragments) without specifying
1663 * an explicit duration. */
1664 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1669 avio_wb64(pb, duration);
1670 avio_wb64(pb, start_ct);
1672 avio_wb32(pb, duration);
1673 avio_wb32(pb, start_ct);
1675 avio_wb32(pb, 0x00010000);
1679 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1681 avio_wb32(pb, 20); // size
1682 ffio_wfourcc(pb, "tref");
1683 avio_wb32(pb, 12); // size (subatom)
1684 avio_wl32(pb, track->tref_tag);
1685 avio_wb32(pb, track->tref_id);
1689 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1690 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1692 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1693 ffio_wfourcc(pb, "uuid");
1694 ffio_wfourcc(pb, "USMT");
1695 avio_wb32(pb, 0x21d24fce);
1696 avio_wb32(pb, 0xbb88695c);
1697 avio_wb32(pb, 0xfac9c740);
1698 avio_wb32(pb, 0x1c); // another size here!
1699 ffio_wfourcc(pb, "MTDT");
1700 avio_wb32(pb, 0x00010012);
1701 avio_wb32(pb, 0x0a);
1702 avio_wb32(pb, 0x55c40000);
1708 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1710 AVFormatContext *ctx = track->rtp_ctx;
1711 char buf[1000] = "";
1714 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1715 NULL, NULL, 0, 0, ctx);
1716 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1719 avio_wb32(pb, len + 24);
1720 ffio_wfourcc(pb, "udta");
1721 avio_wb32(pb, len + 16);
1722 ffio_wfourcc(pb, "hnti");
1723 avio_wb32(pb, len + 8);
1724 ffio_wfourcc(pb, "sdp ");
1725 avio_write(pb, buf, len);
1729 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1730 const char *tag, const char *str)
1732 int64_t pos = avio_tell(pb);
1733 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1734 if (!t || !utf8len(t->value))
1737 avio_wb32(pb, 0); /* size */
1738 ffio_wfourcc(pb, tag); /* type */
1739 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1740 return update_size(pb, pos);
1743 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1746 AVIOContext *pb_buf;
1750 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
1753 ret = avio_open_dyn_buf(&pb_buf);
1757 if (mov->mode & MODE_MP4)
1758 mov_write_track_metadata(pb_buf, st, "name", "title");
1760 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1761 avio_wb32(pb, size + 8);
1762 ffio_wfourcc(pb, "udta");
1763 avio_write(pb, buf, size);
1770 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1771 MOVTrack *track, AVStream *st)
1773 int64_t pos = avio_tell(pb);
1774 avio_wb32(pb, 0); /* size */
1775 ffio_wfourcc(pb, "trak");
1776 mov_write_tkhd_tag(pb, mov, track, st);
1778 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1779 track->cluster[0].dts || is_clcp_track(track))) {
1780 if (mov->use_editlist)
1781 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1782 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1783 av_log(mov->fc, AV_LOG_WARNING,
1784 "Not writing any edit list even though one would have been required\n");
1786 if (track->tref_tag)
1787 mov_write_tref_tag(pb, track);
1788 mov_write_mdia_tag(pb, mov, track);
1789 if (track->mode == MODE_PSP)
1790 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1791 if (track->tag == MKTAG('r','t','p',' '))
1792 mov_write_udta_sdp(pb, track);
1793 if (track->mode == MODE_MOV) {
1794 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1795 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1796 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1797 mov_write_tapt_tag(pb, track);
1800 if (is_clcp_track(track)) {
1801 mov_write_tapt_tag(pb, track);
1804 mov_write_track_udta_tag(pb, mov, st);
1805 return update_size(pb, pos);
1808 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1810 int i, has_audio = 0, has_video = 0;
1811 int64_t pos = avio_tell(pb);
1812 int audio_profile = mov->iods_audio_profile;
1813 int video_profile = mov->iods_video_profile;
1814 for (i = 0; i < mov->nb_streams; i++) {
1815 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1816 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1817 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1820 if (audio_profile < 0)
1821 audio_profile = 0xFF - has_audio;
1822 if (video_profile < 0)
1823 video_profile = 0xFF - has_video;
1824 avio_wb32(pb, 0x0); /* size */
1825 ffio_wfourcc(pb, "iods");
1826 avio_wb32(pb, 0); /* version & flags */
1827 put_descr(pb, 0x10, 7);
1828 avio_wb16(pb, 0x004f);
1831 avio_w8(pb, audio_profile);
1832 avio_w8(pb, video_profile);
1834 return update_size(pb, pos);
1837 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1839 avio_wb32(pb, 0x20); /* size */
1840 ffio_wfourcc(pb, "trex");
1841 avio_wb32(pb, 0); /* version & flags */
1842 avio_wb32(pb, track->track_id); /* track ID */
1843 avio_wb32(pb, 1); /* default sample description index */
1844 avio_wb32(pb, 0); /* default sample duration */
1845 avio_wb32(pb, 0); /* default sample size */
1846 avio_wb32(pb, 0); /* default sample flags */
1850 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1852 int64_t pos = avio_tell(pb);
1854 avio_wb32(pb, 0x0); /* size */
1855 ffio_wfourcc(pb, "mvex");
1856 for (i = 0; i < mov->nb_streams; i++)
1857 mov_write_trex_tag(pb, &mov->tracks[i]);
1858 return update_size(pb, pos);
1861 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1863 int max_track_id = 1, i;
1864 int64_t max_track_len_temp, max_track_len = 0;
1867 for (i = 0; i < mov->nb_streams; i++) {
1868 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1869 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1871 mov->tracks[i].timescale,
1873 if (max_track_len < max_track_len_temp)
1874 max_track_len = max_track_len_temp;
1875 if (max_track_id < mov->tracks[i].track_id)
1876 max_track_id = mov->tracks[i].track_id;
1880 version = max_track_len < UINT32_MAX ? 0 : 1;
1881 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1882 ffio_wfourcc(pb, "mvhd");
1883 avio_w8(pb, version);
1884 avio_wb24(pb, 0); /* flags */
1886 avio_wb64(pb, mov->time);
1887 avio_wb64(pb, mov->time);
1889 avio_wb32(pb, mov->time); /* creation time */
1890 avio_wb32(pb, mov->time); /* modification time */
1892 avio_wb32(pb, MOV_TIMESCALE);
1893 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1895 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1896 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1897 avio_wb16(pb, 0); /* reserved */
1898 avio_wb32(pb, 0); /* reserved */
1899 avio_wb32(pb, 0); /* reserved */
1901 /* Matrix structure */
1902 avio_wb32(pb, 0x00010000); /* reserved */
1903 avio_wb32(pb, 0x0); /* reserved */
1904 avio_wb32(pb, 0x0); /* reserved */
1905 avio_wb32(pb, 0x0); /* reserved */
1906 avio_wb32(pb, 0x00010000); /* reserved */
1907 avio_wb32(pb, 0x0); /* reserved */
1908 avio_wb32(pb, 0x0); /* reserved */
1909 avio_wb32(pb, 0x0); /* reserved */
1910 avio_wb32(pb, 0x40000000); /* reserved */
1912 avio_wb32(pb, 0); /* reserved (preview time) */
1913 avio_wb32(pb, 0); /* reserved (preview duration) */
1914 avio_wb32(pb, 0); /* reserved (poster time) */
1915 avio_wb32(pb, 0); /* reserved (selection time) */
1916 avio_wb32(pb, 0); /* reserved (selection duration) */
1917 avio_wb32(pb, 0); /* reserved (current time) */
1918 avio_wb32(pb, max_track_id + 1); /* Next track id */
1922 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1925 avio_wb32(pb, 33); /* size */
1926 ffio_wfourcc(pb, "hdlr");
1929 ffio_wfourcc(pb, "mdir");
1930 ffio_wfourcc(pb, "appl");
1937 /* helper function to write a data tag with the specified string as data */
1938 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1941 int size = 16 + strlen(data);
1942 avio_wb32(pb, size); /* size */
1943 ffio_wfourcc(pb, "data");
1946 avio_write(pb, data, strlen(data));
1950 lang = ff_mov_iso639_to_lang("und", 1);
1951 avio_wb16(pb, strlen(data)); /* string length */
1952 avio_wb16(pb, lang);
1953 avio_write(pb, data, strlen(data));
1954 return strlen(data) + 4;
1958 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1959 const char *value, int lang, int long_style)
1962 if (value && value[0]) {
1963 int64_t pos = avio_tell(pb);
1964 avio_wb32(pb, 0); /* size */
1965 ffio_wfourcc(pb, name);
1966 mov_write_string_data_tag(pb, value, lang, long_style);
1967 size = update_size(pb, pos);
1972 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1973 const char *name, const char *tag,
1976 int l, lang = 0, len, len2;
1977 AVDictionaryEntry *t, *t2 = NULL;
1980 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1983 len = strlen(t->key);
1984 snprintf(tag2, sizeof(tag2), "%s-", tag);
1985 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1986 len2 = strlen(t2->key);
1987 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1988 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1993 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1996 /* iTunes track number */
1997 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2000 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2001 int size = 0, track = t ? atoi(t->value) : 0;
2003 avio_wb32(pb, 32); /* size */
2004 ffio_wfourcc(pb, "trkn");
2005 avio_wb32(pb, 24); /* size */
2006 ffio_wfourcc(pb, "data");
2007 avio_wb32(pb, 0); // 8 bytes empty
2009 avio_wb16(pb, 0); // empty
2010 avio_wb16(pb, track); // track number
2011 avio_wb16(pb, 0); // total track number
2012 avio_wb16(pb, 0); // empty
2018 /* iTunes meta data list */
2019 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2022 int64_t pos = avio_tell(pb);
2023 avio_wb32(pb, 0); /* size */
2024 ffio_wfourcc(pb, "ilst");
2025 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2026 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2027 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2028 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2029 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2030 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2031 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2032 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2033 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2034 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2035 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2036 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2037 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2038 mov_write_string_metadata(s, pb, "desc", "description",1);
2039 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2040 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2041 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2042 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2043 mov_write_trkn_tag(pb, mov, s);
2044 return update_size(pb, pos);
2047 /* iTunes meta data tag */
2048 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2052 int64_t pos = avio_tell(pb);
2053 avio_wb32(pb, 0); /* size */
2054 ffio_wfourcc(pb, "meta");
2056 mov_write_itunes_hdlr_tag(pb, mov, s);
2057 mov_write_ilst_tag(pb, mov, s);
2058 size = update_size(pb, pos);
2062 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2066 GET_UTF8(val, *b++, return -1;)
2069 avio_wb16(pb, 0x00);
2073 static uint16_t language_code(const char *str)
2075 return (((str[0] - 0x60) & 0x1F) << 10) +
2076 (((str[1] - 0x60) & 0x1F) << 5) +
2077 (( str[2] - 0x60) & 0x1F);
2080 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2081 const char *tag, const char *str)
2083 int64_t pos = avio_tell(pb);
2084 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2085 if (!t || !utf8len(t->value))
2087 avio_wb32(pb, 0); /* size */
2088 ffio_wfourcc(pb, tag); /* type */
2089 avio_wb32(pb, 0); /* version + flags */
2090 if (!strcmp(tag, "yrrc"))
2091 avio_wb16(pb, atoi(t->value));
2093 avio_wb16(pb, language_code("eng")); /* language */
2094 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2095 if (!strcmp(tag, "albm") &&
2096 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2097 avio_w8(pb, atoi(t->value));
2099 return update_size(pb, pos);
2102 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2104 int64_t pos = avio_tell(pb);
2105 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2107 avio_wb32(pb, 0); // size
2108 ffio_wfourcc(pb, "chpl");
2109 avio_wb32(pb, 0x01000000); // version + flags
2110 avio_wb32(pb, 0); // unknown
2111 avio_w8(pb, nb_chapters);
2113 for (i = 0; i < nb_chapters; i++) {
2114 AVChapter *c = s->chapters[i];
2115 AVDictionaryEntry *t;
2116 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2118 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2119 int len = FFMIN(strlen(t->value), 255);
2121 avio_write(pb, t->value, len);
2125 return update_size(pb, pos);
2128 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2131 AVIOContext *pb_buf;
2135 if (s->flags & AVFMT_FLAG_BITEXACT)
2138 ret = avio_open_dyn_buf(&pb_buf);
2142 if (mov->mode & MODE_3GP) {
2143 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2144 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2145 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2146 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2147 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2148 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2149 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2150 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2151 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2152 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2153 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2154 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2155 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2156 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2157 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2158 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2159 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2160 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2162 /* iTunes meta data */
2163 mov_write_meta_tag(pb_buf, mov, s);
2166 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2167 mov_write_chpl_tag(pb_buf, s);
2169 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2170 avio_wb32(pb, size + 8);
2171 ffio_wfourcc(pb, "udta");
2172 avio_write(pb, buf, size);
2179 static void mov_write_psp_udta_tag(AVIOContext *pb,
2180 const char *str, const char *lang, int type)
2182 int len = utf8len(str) + 1;
2185 avio_wb16(pb, len * 2 + 10); /* size */
2186 avio_wb32(pb, type); /* type */
2187 avio_wb16(pb, language_code(lang)); /* language */
2188 avio_wb16(pb, 0x01); /* ? */
2189 ascii_to_wc(pb, str);
2192 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2194 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2198 pos = avio_tell(pb);
2199 avio_wb32(pb, 0); /* size placeholder*/
2200 ffio_wfourcc(pb, "uuid");
2201 ffio_wfourcc(pb, "USMT");
2202 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2203 avio_wb32(pb, 0xbb88695c);
2204 avio_wb32(pb, 0xfac9c740);
2206 pos2 = avio_tell(pb);
2207 avio_wb32(pb, 0); /* size placeholder*/
2208 ffio_wfourcc(pb, "MTDT");
2212 avio_wb16(pb, 0x0C); /* size */
2213 avio_wb32(pb, 0x0B); /* type */
2214 avio_wb16(pb, language_code("und")); /* language */
2215 avio_wb16(pb, 0x0); /* ? */
2216 avio_wb16(pb, 0x021C); /* data */
2218 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2219 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2220 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2222 update_size(pb, pos2);
2223 return update_size(pb, pos);
2229 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2233 int64_t pos = avio_tell(pb);
2234 avio_wb32(pb, 0); /* size placeholder*/
2235 ffio_wfourcc(pb, "moov");
2237 for (i = 0; i < mov->nb_streams; i++) {
2238 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2241 mov->tracks[i].time = mov->time;
2242 mov->tracks[i].track_id = i + 1;
2245 if (mov->chapter_track)
2246 for (i = 0; i < s->nb_streams; i++) {
2247 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2248 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2250 for (i = 0; i < mov->nb_streams; i++) {
2251 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2252 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2253 mov->tracks[i].tref_id =
2254 mov->tracks[mov->tracks[i].src_track].track_id;
2258 mov_write_mvhd_tag(pb, mov);
2259 if (mov->mode != MODE_MOV && !mov->iods_skip)
2260 mov_write_iods_tag(pb, mov);
2261 for (i = 0; i < mov->nb_streams; i++) {
2262 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2263 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2266 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2267 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2269 if (mov->mode == MODE_PSP)
2270 mov_write_uuidusmt_tag(pb, s);
2272 mov_write_udta_tag(pb, mov, s);
2274 return update_size(pb, pos);
2277 static void param_write_int(AVIOContext *pb, const char *name, int value)
2279 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2282 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2284 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2287 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2290 len = FFMIN(sizeof(buf) / 2 - 1, len);
2291 ff_data_to_hex(buf, value, len, 0);
2292 buf[2 * len] = '\0';
2293 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2296 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2298 int64_t pos = avio_tell(pb);
2300 const uint8_t uuid[] = {
2301 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2302 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2306 ffio_wfourcc(pb, "uuid");
2307 avio_write(pb, uuid, sizeof(uuid));
2310 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2311 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2312 avio_printf(pb, "<head>\n");
2313 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2315 avio_printf(pb, "</head>\n");
2316 avio_printf(pb, "<body>\n");
2317 avio_printf(pb, "<switch>\n");
2318 for (i = 0; i < mov->nb_streams; i++) {
2319 MOVTrack *track = &mov->tracks[i];
2321 /* track->track_id is initialized in write_moov, and thus isn't known
2323 int track_id = i + 1;
2325 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2327 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2332 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2333 track->enc->bit_rate);
2334 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2335 param_write_int(pb, "trackID", track_id);
2336 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2337 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2339 int size = track->enc->extradata_size;
2340 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2342 param_write_hex(pb, "CodecPrivateData",
2343 ptr ? ptr : track->enc->extradata,
2347 param_write_string(pb, "FourCC", "H264");
2348 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2349 param_write_string(pb, "FourCC", "WVC1");
2350 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2351 track->enc->extradata_size);
2353 param_write_int(pb, "MaxWidth", track->enc->width);
2354 param_write_int(pb, "MaxHeight", track->enc->height);
2355 param_write_int(pb, "DisplayWidth", track->enc->width);
2356 param_write_int(pb, "DisplayHeight", track->enc->height);
2358 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2359 param_write_string(pb, "FourCC", "AACL");
2360 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2361 param_write_string(pb, "FourCC", "WMAP");
2363 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2364 track->enc->extradata_size);
2365 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2366 track->enc->codec_id));
2367 param_write_int(pb, "Channels", track->enc->channels);
2368 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2369 param_write_int(pb, "BitsPerSample", 16);
2370 param_write_int(pb, "PacketSize", track->enc->block_align ?
2371 track->enc->block_align : 4);
2373 avio_printf(pb, "</%s>\n", type);
2375 avio_printf(pb, "</switch>\n");
2376 avio_printf(pb, "</body>\n");
2377 avio_printf(pb, "</smil>\n");
2379 return update_size(pb, pos);
2382 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2385 ffio_wfourcc(pb, "mfhd");
2387 avio_wb32(pb, mov->fragments);
2391 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2392 MOVTrack *track, int64_t moof_offset)
2394 int64_t pos = avio_tell(pb);
2395 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2396 MOV_TFHD_BASE_DATA_OFFSET;
2397 if (!track->entry) {
2398 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2400 flags |= MOV_TFHD_DEFAULT_FLAGS;
2402 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2403 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2404 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2405 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2406 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2409 /* Don't set a default sample size, the silverlight player refuses
2410 * to play files with that set. Don't set a default sample duration,
2411 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2412 * file format says it MUST NOT be set. */
2413 if (track->mode == MODE_ISM)
2414 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2415 MOV_TFHD_BASE_DATA_OFFSET);
2417 avio_wb32(pb, 0); /* size placeholder */
2418 ffio_wfourcc(pb, "tfhd");
2419 avio_w8(pb, 0); /* version */
2420 avio_wb24(pb, flags);
2422 avio_wb32(pb, track->track_id); /* track-id */
2423 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2424 avio_wb64(pb, moof_offset);
2425 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2426 track->default_duration = get_cluster_duration(track, 0);
2427 avio_wb32(pb, track->default_duration);
2429 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2430 track->default_size = track->entry ? track->cluster[0].size : 1;
2431 avio_wb32(pb, track->default_size);
2433 track->default_size = -1;
2435 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2436 track->default_sample_flags =
2437 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2438 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2439 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2440 avio_wb32(pb, track->default_sample_flags);
2443 return update_size(pb, pos);
2446 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2448 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2449 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2452 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2453 MOVTrack *track, int moof_size)
2455 int64_t pos = avio_tell(pb);
2456 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2459 for (i = 0; i < track->entry; i++) {
2460 if (get_cluster_duration(track, i) != track->default_duration)
2461 flags |= MOV_TRUN_SAMPLE_DURATION;
2462 if (track->cluster[i].size != track->default_size)
2463 flags |= MOV_TRUN_SAMPLE_SIZE;
2464 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2465 flags |= MOV_TRUN_SAMPLE_FLAGS;
2467 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2468 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2469 if (track->flags & MOV_TRACK_CTTS)
2470 flags |= MOV_TRUN_SAMPLE_CTS;
2472 avio_wb32(pb, 0); /* size placeholder */
2473 ffio_wfourcc(pb, "trun");
2474 avio_w8(pb, 0); /* version */
2475 avio_wb24(pb, flags);
2477 avio_wb32(pb, track->entry); /* sample count */
2478 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2479 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2481 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2483 avio_wb32(pb, moof_size + 8 + track->data_offset +
2484 track->cluster[0].pos); /* data offset */
2485 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2486 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2488 for (i = 0; i < track->entry; i++) {
2489 if (flags & MOV_TRUN_SAMPLE_DURATION)
2490 avio_wb32(pb, get_cluster_duration(track, i));
2491 if (flags & MOV_TRUN_SAMPLE_SIZE)
2492 avio_wb32(pb, track->cluster[i].size);
2493 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2494 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2495 if (flags & MOV_TRUN_SAMPLE_CTS)
2496 avio_wb32(pb, track->cluster[i].cts);
2499 mov->first_trun = 0;
2500 return update_size(pb, pos);
2503 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2505 int64_t pos = avio_tell(pb);
2506 const uint8_t uuid[] = {
2507 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2508 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2511 avio_wb32(pb, 0); /* size placeholder */
2512 ffio_wfourcc(pb, "uuid");
2513 avio_write(pb, uuid, sizeof(uuid));
2516 avio_wb64(pb, track->frag_start);
2517 avio_wb64(pb, track->start_dts + track->track_duration -
2518 track->cluster[0].dts);
2520 return update_size(pb, pos);
2523 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2524 MOVTrack *track, int entry)
2526 int n = track->nb_frag_info - 1 - entry, i;
2527 int size = 8 + 16 + 4 + 1 + 16*n;
2528 const uint8_t uuid[] = {
2529 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2530 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2536 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2537 avio_wb32(pb, size);
2538 ffio_wfourcc(pb, "uuid");
2539 avio_write(pb, uuid, sizeof(uuid));
2543 for (i = 0; i < n; i++) {
2544 int index = entry + 1 + i;
2545 avio_wb64(pb, track->frag_info[index].time);
2546 avio_wb64(pb, track->frag_info[index].duration);
2548 if (n < mov->ism_lookahead) {
2549 int free_size = 16 * (mov->ism_lookahead - n);
2550 avio_wb32(pb, free_size);
2551 ffio_wfourcc(pb, "free");
2552 for (i = 0; i < free_size - 8; i++)
2559 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2562 int64_t pos = avio_tell(pb);
2564 for (i = 0; i < mov->ism_lookahead; i++) {
2565 /* Update the tfrf tag for the last ism_lookahead fragments,
2566 * nb_frag_info - 1 is the next fragment to be written. */
2567 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2569 avio_seek(pb, pos, SEEK_SET);
2573 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2577 for (i = 0; i < mov->nb_streams; i++) {
2578 MOVTrack *track = &mov->tracks[i];
2579 MOVFragmentInfo *info;
2580 if ((tracks >= 0 && i != tracks) || !track->entry)
2582 track->nb_frag_info++;
2583 if (track->nb_frag_info >= track->frag_info_capacity) {
2584 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2585 if (av_reallocp_array(&track->frag_info,
2587 sizeof(*track->frag_info)))
2588 return AVERROR(ENOMEM);
2589 track->frag_info_capacity = new_capacity;
2591 info = &track->frag_info[track->nb_frag_info - 1];
2592 info->offset = avio_tell(pb);
2594 // Try to recreate the original pts for the first packet
2595 // from the fields we have stored
2596 info->time = track->start_dts + track->frag_start +
2597 track->cluster[0].cts;
2598 // If the pts is less than zero, we will have trimmed
2599 // away parts of the media track using an edit list,
2600 // and the corresponding start presentation time is zero.
2603 info->duration = track->start_dts + track->track_duration -
2604 track->cluster[0].dts;
2605 info->tfrf_offset = 0;
2606 mov_write_tfrf_tags(pb, mov, track);
2611 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2613 int64_t pos = avio_tell(pb);
2615 avio_wb32(pb, 0); /* size */
2616 ffio_wfourcc(pb, "tfdt");
2617 avio_w8(pb, 1); /* version */
2619 avio_wb64(pb, track->frag_start);
2620 return update_size(pb, pos);
2623 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2624 MOVTrack *track, int64_t moof_offset,
2627 int64_t pos = avio_tell(pb);
2628 avio_wb32(pb, 0); /* size placeholder */
2629 ffio_wfourcc(pb, "traf");
2631 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2632 if (mov->mode != MODE_ISM)
2633 mov_write_tfdt_tag(pb, track);
2634 mov_write_trun_tag(pb, mov, track, moof_size);
2635 if (mov->mode == MODE_ISM) {
2636 mov_write_tfxd_tag(pb, track);
2638 if (mov->ism_lookahead) {
2639 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2641 if (track->nb_frag_info > 0) {
2642 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2643 if (!info->tfrf_offset)
2644 info->tfrf_offset = avio_tell(pb);
2646 avio_wb32(pb, 8 + size);
2647 ffio_wfourcc(pb, "free");
2648 for (i = 0; i < size; i++)
2653 return update_size(pb, pos);
2656 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2657 int tracks, int moof_size)
2659 int64_t pos = avio_tell(pb);
2662 avio_wb32(pb, 0); /* size placeholder */
2663 ffio_wfourcc(pb, "moof");
2664 mov->first_trun = 1;
2666 mov_write_mfhd_tag(pb, mov);
2667 for (i = 0; i < mov->nb_streams; i++) {
2668 MOVTrack *track = &mov->tracks[i];
2669 if (tracks >= 0 && i != tracks)
2673 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2676 return update_size(pb, pos);
2679 static int mov_write_sidx_tag(AVIOContext *pb,
2680 MOVTrack *track, int ref_size, int total_sidx_size)
2682 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2683 int64_t presentation_time, duration, offset;
2684 int starts_with_SAP, i, entries;
2688 presentation_time = track->start_dts + track->frag_start +
2689 track->cluster[0].cts;
2690 duration = track->start_dts + track->track_duration -
2691 track->cluster[0].dts;
2692 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2694 entries = track->nb_frag_info;
2695 presentation_time = track->frag_info[0].time;
2698 // pts<0 should be cut away using edts
2699 if (presentation_time < 0)
2700 presentation_time = 0;
2702 avio_wb32(pb, 0); /* size */
2703 ffio_wfourcc(pb, "sidx");
2704 avio_w8(pb, 1); /* version */
2706 avio_wb32(pb, track->track_id); /* reference_ID */
2707 avio_wb32(pb, track->timescale); /* timescale */
2708 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2709 offset_pos = avio_tell(pb);
2710 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2711 avio_wb16(pb, 0); /* reserved */
2713 avio_wb16(pb, entries); /* reference_count */
2714 for (i = 0; i < entries; i++) {
2715 if (!track->entry) {
2716 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2717 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2719 duration = track->frag_info[i].duration;
2720 ref_size = track->frag_info[i].size;
2721 starts_with_SAP = 1;
2723 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2724 avio_wb32(pb, duration); /* subsegment_duration */
2725 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2728 end_pos = avio_tell(pb);
2729 offset = pos + total_sidx_size - end_pos;
2730 avio_seek(pb, offset_pos, SEEK_SET);
2731 avio_wb64(pb, offset);
2732 avio_seek(pb, end_pos, SEEK_SET);
2733 return update_size(pb, pos);
2736 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2737 int tracks, int ref_size)
2740 AVIOContext *avio_buf;
2742 for (round = 0; round < 2; round++) {
2743 // First run one round to calculate the total size of all
2745 // This would be much simpler if we'd only write one sidx
2746 // atom, for the first track in the moof.
2748 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2753 for (i = 0; i < mov->nb_streams; i++) {
2754 MOVTrack *track = &mov->tracks[i];
2755 if (tracks >= 0 && i != tracks)
2757 // When writing a sidx for the full file, entry is 0, but
2758 // we want to include all tracks. ref_size is 0 in this case,
2759 // since we read it from frag_info instead.
2760 if (!track->entry && ref_size > 0)
2762 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2766 total_size = ffio_close_null_buf(avio_buf);
2771 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2774 AVIOContext *avio_buf;
2777 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2779 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2780 moof_size = ffio_close_null_buf(avio_buf);
2782 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
2783 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2785 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2788 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2791 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2793 int64_t pos = avio_tell(pb);
2796 avio_wb32(pb, 0); /* size placeholder */
2797 ffio_wfourcc(pb, "tfra");
2798 avio_w8(pb, 1); /* version */
2801 avio_wb32(pb, track->track_id);
2802 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2803 avio_wb32(pb, track->nb_frag_info);
2804 for (i = 0; i < track->nb_frag_info; i++) {
2805 avio_wb64(pb, track->frag_info[i].time);
2806 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2807 avio_w8(pb, 1); /* traf number */
2808 avio_w8(pb, 1); /* trun number */
2809 avio_w8(pb, 1); /* sample number */
2812 return update_size(pb, pos);
2815 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2817 int64_t pos = avio_tell(pb);
2820 avio_wb32(pb, 0); /* size placeholder */
2821 ffio_wfourcc(pb, "mfra");
2822 /* An empty mfra atom is enough to indicate to the publishing point that
2823 * the stream has ended. */
2824 if (mov->flags & FF_MOV_FLAG_ISML)
2825 return update_size(pb, pos);
2827 for (i = 0; i < mov->nb_streams; i++) {
2828 MOVTrack *track = &mov->tracks[i];
2829 if (track->nb_frag_info)
2830 mov_write_tfra_tag(pb, track);
2834 ffio_wfourcc(pb, "mfro");
2835 avio_wb32(pb, 0); /* version + flags */
2836 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2838 return update_size(pb, pos);
2841 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2843 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2844 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2846 mov->mdat_pos = avio_tell(pb);
2847 avio_wb32(pb, 0); /* size placeholder*/
2848 ffio_wfourcc(pb, "mdat");
2852 /* TODO: This needs to be more general */
2853 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2855 MOVMuxContext *mov = s->priv_data;
2856 int64_t pos = avio_tell(pb);
2857 int has_h264 = 0, has_video = 0;
2861 for (i = 0; i < s->nb_streams; i++) {
2862 AVStream *st = s->streams[i];
2863 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2865 if (st->codec->codec_id == AV_CODEC_ID_H264)
2869 avio_wb32(pb, 0); /* size */
2870 ffio_wfourcc(pb, "ftyp");
2872 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2873 ffio_wfourcc(pb, mov->major_brand);
2874 else if (mov->mode == MODE_3GP) {
2875 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2876 minor = has_h264 ? 0x100 : 0x200;
2877 } else if (mov->mode & MODE_3G2) {
2878 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2879 minor = has_h264 ? 0x20000 : 0x10000;
2880 } else if (mov->mode == MODE_PSP)
2881 ffio_wfourcc(pb, "MSNV");
2882 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2883 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2884 else if (mov->mode == MODE_MP4)
2885 ffio_wfourcc(pb, "isom");
2886 else if (mov->mode == MODE_IPOD)
2887 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2888 else if (mov->mode == MODE_ISM)
2889 ffio_wfourcc(pb, "isml");
2890 else if (mov->mode == MODE_F4V)
2891 ffio_wfourcc(pb, "f4v ");
2893 ffio_wfourcc(pb, "qt ");
2895 avio_wb32(pb, minor);
2897 if (mov->mode == MODE_MOV)
2898 ffio_wfourcc(pb, "qt ");
2899 else if (mov->mode == MODE_ISM) {
2900 ffio_wfourcc(pb, "piff");
2901 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
2902 ffio_wfourcc(pb, "isom");
2903 ffio_wfourcc(pb, "iso2");
2905 ffio_wfourcc(pb, "avc1");
2908 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
2909 // brand. This is compatible with users that don't understand tfdt.
2910 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
2911 ffio_wfourcc(pb, "iso6");
2913 if (mov->mode == MODE_3GP)
2914 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2915 else if (mov->mode & MODE_3G2)
2916 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2917 else if (mov->mode == MODE_PSP)
2918 ffio_wfourcc(pb, "MSNV");
2919 else if (mov->mode == MODE_MP4)
2920 ffio_wfourcc(pb, "mp41");
2922 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
2923 ffio_wfourcc(pb, "dash");
2925 return update_size(pb, pos);
2928 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2930 AVStream *video_st = s->streams[0];
2931 AVCodecContext *video_codec = s->streams[0]->codec;
2932 AVCodecContext *audio_codec = s->streams[1]->codec;
2933 int audio_rate = audio_codec->sample_rate;
2934 // TODO: should be avg_frame_rate
2935 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
2936 int audio_kbitrate = audio_codec->bit_rate / 1000;
2937 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2939 avio_wb32(pb, 0x94); /* size */
2940 ffio_wfourcc(pb, "uuid");
2941 ffio_wfourcc(pb, "PROF");
2943 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2944 avio_wb32(pb, 0xbb88695c);
2945 avio_wb32(pb, 0xfac9c740);
2947 avio_wb32(pb, 0x0); /* ? */
2948 avio_wb32(pb, 0x3); /* 3 sections ? */
2950 avio_wb32(pb, 0x14); /* size */
2951 ffio_wfourcc(pb, "FPRF");
2952 avio_wb32(pb, 0x0); /* ? */
2953 avio_wb32(pb, 0x0); /* ? */
2954 avio_wb32(pb, 0x0); /* ? */
2956 avio_wb32(pb, 0x2c); /* size */
2957 ffio_wfourcc(pb, "APRF"); /* audio */
2959 avio_wb32(pb, 0x2); /* TrackID */
2960 ffio_wfourcc(pb, "mp4a");
2961 avio_wb32(pb, 0x20f);
2963 avio_wb32(pb, audio_kbitrate);
2964 avio_wb32(pb, audio_kbitrate);
2965 avio_wb32(pb, audio_rate);
2966 avio_wb32(pb, audio_codec->channels);
2968 avio_wb32(pb, 0x34); /* size */
2969 ffio_wfourcc(pb, "VPRF"); /* video */
2971 avio_wb32(pb, 0x1); /* TrackID */
2972 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2973 ffio_wfourcc(pb, "avc1");
2974 avio_wb16(pb, 0x014D);
2975 avio_wb16(pb, 0x0015);
2977 ffio_wfourcc(pb, "mp4v");
2978 avio_wb16(pb, 0x0000);
2979 avio_wb16(pb, 0x0103);
2982 avio_wb32(pb, video_kbitrate);
2983 avio_wb32(pb, video_kbitrate);
2984 avio_wb32(pb, frame_rate);
2985 avio_wb32(pb, frame_rate);
2986 avio_wb16(pb, video_codec->width);
2987 avio_wb16(pb, video_codec->height);
2988 avio_wb32(pb, 0x010001); /* ? */
2991 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2994 int i, closed_gop = 0;
2996 for (i = 0; i < pkt->size - 4; i++) {
2997 c = (c << 8) + pkt->data[i];
2998 if (c == 0x1b8) { // gop
2999 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3000 } else if (c == 0x100) { // pic
3001 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3002 if (!temp_ref || closed_gop) // I picture is not reordered
3003 *flags = MOV_SYNC_SAMPLE;
3005 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3012 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
3014 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3015 int seq = 0, entry = 0;
3016 int key = pkt->flags & AV_PKT_FLAG_KEY;
3017 start = find_next_marker(pkt->data, end);
3018 for (next = start; next < end; start = next) {
3019 next = find_next_marker(start + 4, end);
3020 switch (AV_RB32(start)) {
3021 case VC1_CODE_SEQHDR:
3024 case VC1_CODE_ENTRYPOINT:
3027 case VC1_CODE_SLICE:
3028 trk->vc1_info.slices = 1;
3032 if (!trk->entry && !fragment) {
3033 /* First packet in first fragment */
3034 trk->vc1_info.first_packet_seq = seq;
3035 trk->vc1_info.first_packet_entry = entry;
3036 } else if ((seq && !trk->vc1_info.packet_seq) ||
3037 (entry && !trk->vc1_info.packet_entry)) {
3039 for (i = 0; i < trk->entry; i++)
3040 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3041 trk->has_keyframes = 0;
3043 trk->vc1_info.packet_seq = 1;
3045 trk->vc1_info.packet_entry = 1;
3047 /* First fragment */
3048 if ((!seq || trk->vc1_info.first_packet_seq) &&
3049 (!entry || trk->vc1_info.first_packet_entry)) {
3050 /* First packet had the same headers as this one, readd the
3051 * sync sample flag. */
3052 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3053 trk->has_keyframes = 1;
3057 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3059 else if (trk->vc1_info.packet_seq)
3061 else if (trk->vc1_info.packet_entry)
3064 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3065 trk->has_keyframes++;
3069 static int mov_flush_fragment(AVFormatContext *s)
3071 MOVMuxContext *mov = s->priv_data;
3072 int i, first_track = -1;
3073 int64_t mdat_size = 0;
3075 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3078 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
3079 int64_t pos = avio_tell(s->pb);
3081 AVIOContext *moov_buf;
3085 for (i = 0; i < mov->nb_streams; i++)
3086 if (!mov->tracks[i].entry)
3088 /* Don't write the initial moov unless all tracks have data */
3089 if (i < mov->nb_streams)
3092 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3094 mov_write_moov_tag(moov_buf, mov, s);
3095 buf_size = ffio_close_null_buf(moov_buf);
3096 for (i = 0; i < mov->nb_streams; i++)
3097 mov->tracks[i].data_offset = pos + buf_size + 8;
3099 mov_write_moov_tag(s->pb, mov, s);
3101 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3102 mov->mdat_buf = NULL;
3103 avio_wb32(s->pb, buf_size + 8);
3104 ffio_wfourcc(s->pb, "mdat");
3105 avio_write(s->pb, buf, buf_size);
3110 for (i = 0; i < mov->nb_streams; i++) {
3111 if (mov->tracks[i].entry)
3112 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3113 mov->tracks[i].track_duration -
3114 mov->tracks[i].cluster[0].dts;
3115 mov->tracks[i].entry = 0;
3121 for (i = 0; i < mov->nb_streams; i++) {
3122 MOVTrack *track = &mov->tracks[i];
3123 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
3124 track->data_offset = 0;
3126 track->data_offset = mdat_size;
3127 if (!track->mdat_buf)
3129 mdat_size += avio_tell(track->mdat_buf);
3130 if (first_track < 0)
3137 for (i = 0; i < mov->nb_streams; i++) {
3138 MOVTrack *track = &mov->tracks[i];
3139 int buf_size, write_moof = 1, moof_tracks = -1;
3141 int64_t duration = 0;
3144 duration = track->start_dts + track->track_duration -
3145 track->cluster[0].dts;
3146 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3147 if (!track->mdat_buf)
3149 mdat_size = avio_tell(track->mdat_buf);
3152 write_moof = i == first_track;
3158 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3161 avio_wb32(s->pb, mdat_size + 8);
3162 ffio_wfourcc(s->pb, "mdat");
3166 track->frag_start += duration;
3168 if (!track->mdat_buf)
3170 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3171 track->mdat_buf = NULL;
3173 avio_write(s->pb, buf, buf_size);
3183 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3185 MOVMuxContext *mov = s->priv_data;
3186 AVIOContext *pb = s->pb;
3187 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3188 AVCodecContext *enc = trk->enc;
3189 unsigned int samples_in_chunk = 0;
3190 int size = pkt->size, ret = 0;
3191 uint8_t *reformatted_data = NULL;
3193 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3195 if (mov->fragments > 0) {
3196 if (!trk->mdat_buf) {
3197 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3202 if (!mov->mdat_buf) {
3203 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3210 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3211 /* We must find out how many AMR blocks there are in one packet */
3212 static uint16_t packed_size[16] =
3213 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3216 while (len < size && samples_in_chunk < 100) {
3217 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3220 if (samples_in_chunk > 1) {
3221 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3224 } else if (trk->sample_size)
3225 samples_in_chunk = size / trk->sample_size;
3227 samples_in_chunk = 1;
3229 /* copy extradata if it exists */
3230 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3231 trk->vos_len = enc->extradata_size;
3232 trk->vos_data = av_malloc(trk->vos_len);
3233 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3236 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3237 /* from x264 or from bytestream h264 */
3238 /* nal reformating needed */
3239 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3240 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3242 avio_write(pb, reformatted_data, size);
3244 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3246 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3247 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3248 /* extradata is Annex B, assume the bitstream is too and convert it */
3249 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3250 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3251 avio_write(pb, reformatted_data, size);
3253 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3256 avio_write(pb, pkt->data, size);
3259 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3260 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3261 /* copy frame to create needed atoms */
3262 trk->vos_len = size;
3263 trk->vos_data = av_malloc(size);
3264 if (!trk->vos_data) {
3265 ret = AVERROR(ENOMEM);
3268 memcpy(trk->vos_data, pkt->data, size);
3271 if (trk->entry >= trk->cluster_capacity) {
3272 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3273 if (av_reallocp_array(&trk->cluster, new_capacity,
3274 sizeof(*trk->cluster))) {
3275 ret = AVERROR(ENOMEM);
3278 trk->cluster_capacity = new_capacity;
3281 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3282 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3283 trk->cluster[trk->entry].size = size;
3284 trk->cluster[trk->entry].entries = samples_in_chunk;
3285 trk->cluster[trk->entry].dts = pkt->dts;
3286 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3287 if (!trk->frag_discont) {
3288 /* First packet of a new fragment. We already wrote the duration
3289 * of the last packet of the previous fragment based on track_duration,
3290 * which might not exactly match our dts. Therefore adjust the dts
3291 * of this packet to be what the previous packets duration implies. */
3292 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3294 /* New fragment, but discontinuous from previous fragments.
3295 * Pretend the duration sum of the earlier fragments is
3296 * pkt->dts - trk->start_dts. */
3297 trk->frag_start = pkt->dts - trk->start_dts;
3298 trk->frag_discont = 0;
3301 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3302 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3303 /* Not using edit lists and shifting the first track to start from zero.
3304 * If the other streams start from a later timestamp, we won't be able
3305 * to signal the difference in starting time without an edit list.
3306 * Thus move the timestamp for this first sample to 0, increasing
3307 * its duration instead. */
3308 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3310 if (trk->start_dts == AV_NOPTS_VALUE) {
3311 trk->start_dts = pkt->dts;
3312 if (trk->frag_discont) {
3313 /* Pretend the whole stream started at dts=0, with earlier framgents
3314 * already written, with a duration summing up to pkt->dts. */
3315 trk->frag_start = pkt->dts;
3317 trk->frag_discont = 0;
3318 } else if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3319 av_log(s, AV_LOG_WARNING,
3320 "Track %d starts with a nonzero dts %"PRId64". This "
3321 "currently isn't handled correctly in combination with "
3322 "empty_moov.\n", pkt->stream_index, pkt->dts);
3324 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3326 if (pkt->pts == AV_NOPTS_VALUE) {
3327 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3328 pkt->pts = pkt->dts;
3330 if (pkt->dts != pkt->pts)
3331 trk->flags |= MOV_TRACK_CTTS;
3332 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3333 trk->cluster[trk->entry].flags = 0;
3334 if (enc->codec_id == AV_CODEC_ID_VC1) {
3335 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3336 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3337 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3338 trk->entry > 0) { // force sync sample for the first key frame
3339 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3340 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3341 trk->flags |= MOV_TRACK_STPS;
3343 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3345 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3346 trk->has_keyframes++;
3349 trk->sample_count += samples_in_chunk;
3350 mov->mdat_size += size;
3352 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3353 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3354 reformatted_data, size);
3357 av_free(reformatted_data);
3361 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3364 mov_flush_fragment(s);
3367 MOVMuxContext *mov = s->priv_data;
3368 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3369 AVCodecContext *enc = trk->enc;
3370 int64_t frag_duration = 0;
3371 int size = pkt->size;
3374 return 0; /* Discard 0 sized packets */
3376 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3378 for (i = 0; i < s->nb_streams; i++)
3379 mov->tracks[i].frag_discont = 1;
3380 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3384 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3385 s->streams[pkt->stream_index]->time_base,
3387 if ((mov->max_fragment_duration &&
3388 frag_duration >= mov->max_fragment_duration) ||
3389 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3390 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3391 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3392 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3393 if (frag_duration >= mov->min_fragment_duration)
3394 mov_flush_fragment(s);
3397 return ff_mov_write_packet(s, pkt);
3401 // QuickTime chapters involve an additional text track with the chapter names
3402 // as samples, and a tref pointing from the other tracks to the chapter one.
3403 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3405 MOVMuxContext *mov = s->priv_data;
3406 MOVTrack *track = &mov->tracks[tracknum];
3407 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3409 // These properties are required to make QT recognize the chapter track
3410 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3412 track->mode = mov->mode;
3413 track->tag = MKTAG('t','e','x','t');
3414 track->timescale = MOV_TIMESCALE;
3415 track->enc = avcodec_alloc_context3(NULL);
3417 return AVERROR(ENOMEM);
3418 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3419 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3420 if (!track->enc->extradata)
3421 return AVERROR(ENOMEM);
3422 track->enc->extradata_size = sizeof(chapter_properties);
3423 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3425 for (i = 0; i < s->nb_chapters; i++) {
3426 AVChapter *c = s->chapters[i];
3427 AVDictionaryEntry *t;
3429 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3430 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3431 pkt.duration = end - pkt.dts;
3433 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3434 const char encd[12] = {
3435 0x00, 0x00, 0x00, 0x0C,
3437 0x00, 0x00, 0x01, 0x00 };
3438 len = strlen(t->value);
3439 pkt.size = len + 2 + 12;
3440 pkt.data = av_malloc(pkt.size);
3442 return AVERROR(ENOMEM);
3443 AV_WB16(pkt.data, len);
3444 memcpy(pkt.data + 2, t->value, len);
3445 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3446 ff_mov_write_packet(s, &pkt);
3447 av_freep(&pkt.data);
3455 * st->disposition controls the "enabled" flag in the tkhd tag.
3456 * QuickTime will not play a track if it is not enabled. So make sure
3457 * that one track of each type (audio, video, subtitle) is enabled.
3459 * Subtitles are special. For audio and video, setting "enabled" also
3460 * makes the track "default" (i.e. it is rendered when played). For
3461 * subtitles, an "enabled" subtitle is not rendered by default, but
3462 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3465 static void enable_tracks(AVFormatContext *s)
3467 MOVMuxContext *mov = s->priv_data;
3469 int enabled[AVMEDIA_TYPE_NB];
3470 int first[AVMEDIA_TYPE_NB];
3472 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3477 for (i = 0; i < s->nb_streams; i++) {
3478 AVStream *st = s->streams[i];
3480 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3481 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3484 if (first[st->codec->codec_type] < 0)
3485 first[st->codec->codec_type] = i;
3486 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3487 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3488 enabled[st->codec->codec_type]++;
3492 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3494 case AVMEDIA_TYPE_VIDEO:
3495 case AVMEDIA_TYPE_AUDIO:
3496 case AVMEDIA_TYPE_SUBTITLE:
3498 mov->per_stream_grouping = 1;
3499 if (!enabled[i] && first[i] >= 0)
3500 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3506 static void mov_free(AVFormatContext *s)
3508 MOVMuxContext *mov = s->priv_data;
3511 if (mov->chapter_track) {
3512 if (mov->tracks[mov->chapter_track].enc)
3513 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3514 av_freep(&mov->tracks[mov->chapter_track].enc);
3517 for (i = 0; i < mov->nb_streams; i++) {
3518 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3519 ff_mov_close_hinting(&mov->tracks[i]);
3520 av_freep(&mov->tracks[i].cluster);
3521 av_freep(&mov->tracks[i].frag_info);
3523 if (mov->tracks[i].vos_len)
3524 av_free(mov->tracks[i].vos_data);
3527 av_freep(&mov->tracks);
3530 static uint32_t rgb_to_yuv(uint32_t rgb)
3535 r = (rgb >> 16) & 0xFF;
3536 g = (rgb >> 8) & 0xFF;
3539 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3540 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3541 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3543 return (y << 16) | (cr << 8) | cb;
3546 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3549 int i, width = 720, height = 480;
3550 int have_palette = 0, have_size = 0;
3551 uint32_t palette[16];
3552 char *cur = st->codec->extradata;
3554 while (cur && *cur) {
3555 if (strncmp("palette:", cur, 8) == 0) {
3557 count = sscanf(cur + 8,
3558 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3559 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3560 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3561 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3562 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3563 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3564 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3565 &palette[12], &palette[13], &palette[14], &palette[15]);
3567 for (i = 0; i < count; i++) {
3568 palette[i] = rgb_to_yuv(palette[i]);
3571 } else if (!strncmp("size:", cur, 5)) {
3572 sscanf(cur + 5, "%dx%d", &width, &height);
3575 if (have_palette && have_size)
3577 cur += strcspn(cur, "\n\r");
3578 cur += strspn(cur, "\n\r");
3581 track->vos_data = av_malloc(16*4);
3582 if (!track->vos_data)
3583 return AVERROR(ENOMEM);
3584 for (i = 0; i < 16; i++) {
3585 AV_WB32(track->vos_data + i * 4, palette[i]);
3587 track->vos_len = 16 * 4;
3589 st->codec->width = width;
3590 st->codec->height = track->height = height;
3595 static int mov_write_header(AVFormatContext *s)
3597 AVIOContext *pb = s->pb;
3598 MOVMuxContext *mov = s->priv_data;
3599 AVDictionaryEntry *t;
3600 int i, hint_track = 0;
3604 /* Default mode == MP4 */
3605 mov->mode = MODE_MP4;
3608 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3609 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3610 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3611 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3612 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3613 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3614 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3617 /* Set the FRAGMENT flag if any of the fragmentation methods are
3619 if (mov->max_fragment_duration || mov->max_fragment_size ||
3620 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3621 FF_MOV_FLAG_FRAG_KEYFRAME |
3622 FF_MOV_FLAG_FRAG_CUSTOM))
3623 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3625 /* Set other implicit flags immediately */
3626 if (mov->mode == MODE_ISM)
3627 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3628 FF_MOV_FLAG_FRAGMENT;
3629 if (mov->flags & FF_MOV_FLAG_DASH)
3630 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
3631 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
3633 if (mov->use_editlist < 0) {
3634 mov->use_editlist = 1;
3635 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3636 // If we can avoid needing an edit list by shifting the
3637 // tracks, prefer that over (trying to) write edit lists
3638 // in fragmented output.
3639 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3640 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3641 mov->use_editlist = 0;
3644 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && mov->use_editlist)
3645 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov\n");
3647 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3648 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3650 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3651 * is enabled, we don't support non-seekable output at all. */
3652 if (!s->pb->seekable &&
3653 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3654 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3655 return AVERROR(EINVAL);
3659 mov_write_ftyp_tag(pb,s);
3660 if (mov->mode == MODE_PSP) {
3661 if (s->nb_streams != 2) {
3662 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3663 return AVERROR(EINVAL);
3665 mov_write_uuidprof_tag(pb, s);
3668 mov->nb_streams = s->nb_streams;
3669 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3670 mov->chapter_track = mov->nb_streams++;
3672 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3673 /* Add hint tracks for each audio and video stream */
3674 hint_track = mov->nb_streams;
3675 for (i = 0; i < s->nb_streams; i++) {
3676 AVStream *st = s->streams[i];
3677 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3678 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3684 // Reserve an extra stream for chapters for the case where chapters
3685 // are written in the trailer
3686 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3688 return AVERROR(ENOMEM);
3690 for (i = 0; i < s->nb_streams; i++) {
3691 AVStream *st= s->streams[i];
3692 MOVTrack *track= &mov->tracks[i];
3693 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3696 track->enc = st->codec;
3697 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3698 if (track->language < 0)
3699 track->language = 0;
3700 track->mode = mov->mode;
3701 track->tag = mov_find_codec_tag(s, track);
3703 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3704 "codec not currently supported in container\n", i);
3707 /* If hinting of this track is enabled by a later hint track,
3708 * this is updated. */
3709 track->hint_track = -1;
3710 track->start_dts = AV_NOPTS_VALUE;
3711 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3712 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3713 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3714 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3715 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3716 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3719 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3721 track->timescale = st->time_base.den;
3722 if (track->mode == MODE_MOV && track->timescale > 100000)
3723 av_log(s, AV_LOG_WARNING,
3724 "WARNING codec timebase is very high. If duration is too long,\n"
3725 "file may not be playable by quicktime. Specify a shorter timebase\n"
3726 "or choose different container.\n");
3727 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3728 track->timescale = st->codec->sample_rate;
3729 /* set sample_size for PCM and ADPCM */
3730 if (av_get_bits_per_sample(st->codec->codec_id) ||
3731 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3732 if (!st->codec->block_align) {
3733 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3736 track->sample_size = st->codec->block_align;
3738 /* set audio_vbr for compressed audio */
3739 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3740 track->audio_vbr = 1;
3742 if (track->mode != MODE_MOV &&
3743 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3744 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3745 i, track->enc->sample_rate);
3748 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3749 track->timescale = st->time_base.den;
3750 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3751 track->timescale = st->time_base.den;
3754 track->height = st->codec->height;
3755 /* The ism specific timescale isn't mandatory, but is assumed by
3756 * some tools, such as mp4split. */
3757 if (mov->mode == MODE_ISM)
3758 track->timescale = 10000000;
3760 avpriv_set_pts_info(st, 64, 1, track->timescale);
3762 /* copy extradata if it exists */
3763 if (st->codec->extradata_size) {
3764 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
3765 mov_create_dvd_sub_decoder_specific_info(track, st);
3767 track->vos_len = st->codec->extradata_size;
3768 track->vos_data = av_malloc(track->vos_len);
3769 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3776 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3777 /* If no fragmentation options have been set, set a default. */
3778 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3779 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3780 !mov->max_fragment_duration && !mov->max_fragment_size)
3781 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3783 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3784 mov->reserved_moov_pos = avio_tell(pb);
3785 mov_write_mdat_tag(pb, mov);
3788 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3789 mov->time = ff_iso8601_to_unix_time(t->value);
3791 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3793 if (mov->chapter_track)
3794 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3797 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3798 /* Initialize the hint tracks for each audio and video stream */
3799 for (i = 0; i < s->nb_streams; i++) {
3800 AVStream *st = s->streams[i];
3801 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3802 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3803 ff_mov_init_hinting(s, hint_track, i);
3811 if (mov->flags & FF_MOV_FLAG_ISML)
3812 mov_write_isml_manifest(pb, mov);
3814 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3815 mov_write_moov_tag(pb, mov, s);
3817 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3818 mov->reserved_moov_pos = avio_tell(pb);
3827 static int get_moov_size(AVFormatContext *s)
3830 AVIOContext *moov_buf;
3831 MOVMuxContext *mov = s->priv_data;
3833 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3835 mov_write_moov_tag(moov_buf, mov, s);
3836 return ffio_close_null_buf(moov_buf);
3839 static int get_sidx_size(AVFormatContext *s)
3843 MOVMuxContext *mov = s->priv_data;
3845 if ((ret = ffio_open_null_buf(&buf)) < 0)
3847 mov_write_sidx_tags(buf, mov, -1, 0);
3848 return ffio_close_null_buf(buf);
3852 * This function gets the moov size if moved to the top of the file: the chunk
3853 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3854 * entries) when the moov is moved to the beginning, so the size of the moov
3855 * would change. It also updates the chunk offset tables.
3857 static int compute_moov_size(AVFormatContext *s)
3859 int i, moov_size, moov_size2;
3860 MOVMuxContext *mov = s->priv_data;
3862 moov_size = get_moov_size(s);
3866 for (i = 0; i < mov->nb_streams; i++)
3867 mov->tracks[i].data_offset += moov_size;
3869 moov_size2 = get_moov_size(s);
3873 /* if the size changed, we just switched from stco to co64 and need to
3874 * update the offsets */
3875 if (moov_size2 != moov_size)
3876 for (i = 0; i < mov->nb_streams; i++)
3877 mov->tracks[i].data_offset += moov_size2 - moov_size;
3882 static int compute_sidx_size(AVFormatContext *s)
3885 MOVMuxContext *mov = s->priv_data;
3887 sidx_size = get_sidx_size(s);
3891 for (i = 0; i < mov->nb_streams; i++)
3892 mov->tracks[i].data_offset += sidx_size;
3897 static int shift_data(AVFormatContext *s)
3899 int ret = 0, moov_size;
3900 MOVMuxContext *mov = s->priv_data;
3901 int64_t pos, pos_end = avio_tell(s->pb);
3902 uint8_t *buf, *read_buf[2];
3903 int read_buf_id = 0;
3905 AVIOContext *read_pb;
3907 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3908 moov_size = compute_sidx_size(s);
3910 moov_size = compute_moov_size(s);
3914 buf = av_malloc(moov_size * 2);
3916 return AVERROR(ENOMEM);
3918 read_buf[1] = buf + moov_size;
3920 /* Shift the data: the AVIO context of the output can only be used for
3921 * writing, so we re-open the same output, but for reading. It also avoids
3922 * a read/seek/write/seek back and forth. */
3924 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3926 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3927 "the second pass (faststart)\n", s->filename);
3931 /* mark the end of the shift to up to the last data we wrote, and get ready
3933 pos_end = avio_tell(s->pb);
3934 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3936 /* start reading at where the new moov will be placed */
3937 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3938 pos = avio_tell(read_pb);
3940 #define READ_BLOCK do { \
3941 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3945 /* shift data by chunk of at most moov_size */
3950 n = read_size[read_buf_id];
3953 avio_write(s->pb, read_buf[read_buf_id], n);
3955 } while (pos < pos_end);
3956 avio_close(read_pb);
3963 static int mov_write_trailer(AVFormatContext *s)
3965 MOVMuxContext *mov = s->priv_data;
3966 AVIOContext *pb = s->pb;
3971 // If there were no chapters when the header was written, but there
3972 // are chapters now, write them in the trailer. This only works
3973 // when we are not doing fragments.
3974 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3975 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3976 mov->chapter_track = mov->nb_streams++;
3977 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3982 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3983 moov_pos = avio_tell(pb);
3985 /* Write size of mdat tag */
3986 if (mov->mdat_size + 8 <= UINT32_MAX) {
3987 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3988 avio_wb32(pb, mov->mdat_size + 8);
3990 /* overwrite 'wide' placeholder atom */
3991 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3992 /* special value: real atom size will be 64 bit value after
3995 ffio_wfourcc(pb, "mdat");
3996 avio_wb64(pb, mov->mdat_size + 16);
3998 avio_seek(pb, moov_pos, SEEK_SET);
4000 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4001 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4002 res = shift_data(s);
4004 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
4005 mov_write_moov_tag(pb, mov, s);
4008 mov_write_moov_tag(pb, mov, s);
4011 mov_flush_fragment(s);
4012 for (i = 0; i < mov->nb_streams; i++)
4013 mov->tracks[i].data_offset = 0;
4014 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4015 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4016 res = shift_data(s);
4018 int64_t end = avio_tell(pb);
4019 avio_seek(pb, mov->reserved_moov_pos, SEEK_SET);
4020 mov_write_sidx_tags(pb, mov, -1, 0);
4021 avio_seek(pb, end, SEEK_SET);
4022 mov_write_mfra_tag(pb, mov);
4025 mov_write_mfra_tag(pb, mov);
4029 for (i = 0; i < mov->nb_streams; i++) {
4030 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4031 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
4032 int64_t off = avio_tell(pb);
4034 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
4035 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
4036 avio_write(pb, buf, 7);
4037 avio_seek(pb, off, SEEK_SET);
4048 #if CONFIG_MOV_MUXER
4050 AVOutputFormat ff_mov_muxer = {
4052 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4053 .extensions = "mov",
4054 .priv_data_size = sizeof(MOVMuxContext),
4055 .audio_codec = AV_CODEC_ID_AAC,
4056 .video_codec = CONFIG_LIBX264_ENCODER ?
4057 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4058 .write_header = mov_write_header,
4059 .write_packet = mov_write_packet,
4060 .write_trailer = mov_write_trailer,
4061 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4062 .codec_tag = (const AVCodecTag* const []){
4063 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4065 .priv_class = &mov_muxer_class,
4068 #if CONFIG_TGP_MUXER
4070 AVOutputFormat ff_tgp_muxer = {
4072 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4073 .extensions = "3gp",
4074 .priv_data_size = sizeof(MOVMuxContext),
4075 .audio_codec = AV_CODEC_ID_AMR_NB,
4076 .video_codec = AV_CODEC_ID_H263,
4077 .write_header = mov_write_header,
4078 .write_packet = mov_write_packet,
4079 .write_trailer = mov_write_trailer,
4080 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4081 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4082 .priv_class = &tgp_muxer_class,
4085 #if CONFIG_MP4_MUXER
4087 AVOutputFormat ff_mp4_muxer = {
4089 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4090 .mime_type = "application/mp4",
4091 .extensions = "mp4",
4092 .priv_data_size = sizeof(MOVMuxContext),
4093 .audio_codec = AV_CODEC_ID_AAC,
4094 .video_codec = CONFIG_LIBX264_ENCODER ?
4095 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4096 .write_header = mov_write_header,
4097 .write_packet = mov_write_packet,
4098 .write_trailer = mov_write_trailer,
4099 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4100 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4101 .priv_class = &mp4_muxer_class,
4104 #if CONFIG_PSP_MUXER
4106 AVOutputFormat ff_psp_muxer = {
4108 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4109 .extensions = "mp4,psp",
4110 .priv_data_size = sizeof(MOVMuxContext),
4111 .audio_codec = AV_CODEC_ID_AAC,
4112 .video_codec = CONFIG_LIBX264_ENCODER ?
4113 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4114 .write_header = mov_write_header,
4115 .write_packet = mov_write_packet,
4116 .write_trailer = mov_write_trailer,
4117 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4118 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4119 .priv_class = &psp_muxer_class,
4122 #if CONFIG_TG2_MUXER
4124 AVOutputFormat ff_tg2_muxer = {
4126 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4127 .extensions = "3g2",
4128 .priv_data_size = sizeof(MOVMuxContext),
4129 .audio_codec = AV_CODEC_ID_AMR_NB,
4130 .video_codec = AV_CODEC_ID_H263,
4131 .write_header = mov_write_header,
4132 .write_packet = mov_write_packet,
4133 .write_trailer = mov_write_trailer,
4134 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4135 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4136 .priv_class = &tg2_muxer_class,
4139 #if CONFIG_IPOD_MUXER
4141 AVOutputFormat ff_ipod_muxer = {
4143 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4144 .mime_type = "application/mp4",
4145 .extensions = "m4v,m4a",
4146 .priv_data_size = sizeof(MOVMuxContext),
4147 .audio_codec = AV_CODEC_ID_AAC,
4148 .video_codec = AV_CODEC_ID_H264,
4149 .write_header = mov_write_header,
4150 .write_packet = mov_write_packet,
4151 .write_trailer = mov_write_trailer,
4152 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4153 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4154 .priv_class = &ipod_muxer_class,
4157 #if CONFIG_ISMV_MUXER
4159 AVOutputFormat ff_ismv_muxer = {
4161 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4162 .mime_type = "application/mp4",
4163 .extensions = "ismv,isma",
4164 .priv_data_size = sizeof(MOVMuxContext),
4165 .audio_codec = AV_CODEC_ID_AAC,
4166 .video_codec = AV_CODEC_ID_H264,
4167 .write_header = mov_write_header,
4168 .write_packet = mov_write_packet,
4169 .write_trailer = mov_write_trailer,
4170 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4171 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4172 .priv_class = &ismv_muxer_class,
4175 #if CONFIG_F4V_MUXER
4177 AVOutputFormat ff_f4v_muxer = {
4179 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4180 .mime_type = "application/f4v",
4181 .extensions = "f4v",
4182 .priv_data_size = sizeof(MOVMuxContext),
4183 .audio_codec = AV_CODEC_ID_AAC,
4184 .video_codec = AV_CODEC_ID_H264,
4185 .write_header = mov_write_header,
4186 .write_packet = mov_write_packet,
4187 .write_trailer = mov_write_trailer,
4188 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4189 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4190 .priv_class = &f4v_muxer_class,