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"
47 static const AVOption options[] = {
48 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
49 { "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" },
50 { "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" },
51 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "faststart", "Run a second pass to put the 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" },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
64 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
65 { "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},
66 { "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},
67 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
72 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
73 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
74 { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), 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->par->extradata, track->par->extradata_size);
291 return track->par->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 AVCPBProperties *props;
306 int64_t pos = avio_tell(pb);
307 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
309 avio_wb32(pb, 0); // size
310 ffio_wfourcc(pb, "esds");
311 avio_wb32(pb, 0); // Version
314 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
315 avio_wb16(pb, track->track_id);
316 avio_w8(pb, 0x00); // flags (= no flags)
318 // DecoderConfig descriptor
319 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
321 // Object type indication
322 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
323 track->par->codec_id == AV_CODEC_ID_MP3) &&
324 track->par->sample_rate > 24000)
325 avio_w8(pb, 0x6B); // 11172-3
327 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
329 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
330 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
331 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
332 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
333 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
334 avio_w8(pb, 0x15); // flags (= Audiostream)
336 avio_w8(pb, 0x11); // flags (= Visualstream)
338 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
341 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
343 avio_wb32(pb, props ? FFMAX(props->max_bitrate, props->avg_bitrate) : track->par->bit_rate); // maxbitrate (FIXME should be max rate in any 1 sec window)
344 if (!props || !props->min_bitrate || props->max_bitrate != props->min_bitrate)
345 avio_wb32(pb, 0); // vbr
347 avio_wb32(pb, props->max_bitrate); // avg bitrate
349 if (track->vos_len) {
350 // DecoderSpecific info descriptor
351 put_descr(pb, 0x05, track->vos_len);
352 avio_write(pb, track->vos_data, track->vos_len);
356 put_descr(pb, 0x06, 1);
358 return update_size(pb, pos);
361 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
363 int64_t pos = avio_tell(pb);
365 avio_wl32(pb, track->tag); // store it byteswapped
366 track->par->codec_tag = av_bswap16(track->tag >> 16);
367 ff_put_wav_header(s, pb, track->st->codecpar);
368 return update_size(pb, pos);
371 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
373 int64_t pos = avio_tell(pb);
375 ffio_wfourcc(pb, "wfex");
376 ff_put_wav_header(s, pb, track->st->codecpar);
377 return update_size(pb, pos);
380 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
382 uint32_t layout_tag, bitmap;
383 int64_t pos = avio_tell(pb);
385 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
386 track->par->channel_layout,
389 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
390 "lack of channel information\n");
394 avio_wb32(pb, 0); // Size
395 ffio_wfourcc(pb, "chan"); // Type
396 avio_w8(pb, 0); // Version
397 avio_wb24(pb, 0); // Flags
398 avio_wb32(pb, layout_tag); // mChannelLayoutTag
399 avio_wb32(pb, bitmap); // mChannelBitmap
400 avio_wb32(pb, 0); // mNumberChannelDescriptions
402 return update_size(pb, pos);
405 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
407 int64_t pos = avio_tell(pb);
409 avio_wb32(pb, 0); /* size */
410 ffio_wfourcc(pb, "wave");
412 avio_wb32(pb, 12); /* size */
413 ffio_wfourcc(pb, "frma");
414 avio_wl32(pb, track->tag);
416 if (track->par->codec_id == AV_CODEC_ID_AAC) {
417 /* useless atom needed by mplayer, ipod, not needed by quicktime */
418 avio_wb32(pb, 12); /* size */
419 ffio_wfourcc(pb, "mp4a");
421 mov_write_esds_tag(pb, track);
422 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
423 mov_write_amr_tag(pb, track);
424 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
425 mov_write_ac3_tag(pb, track);
426 } else if (track->par->codec_id == AV_CODEC_ID_ALAC) {
427 mov_write_extradata_tag(pb, track);
428 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
429 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
430 mov_write_ms_tag(s, pb, track);
433 avio_wb32(pb, 8); /* size */
434 avio_wb32(pb, 0); /* null tag */
436 return update_size(pb, pos);
439 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
442 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
443 int unescaped_size, seq_found = 0;
444 int level = 0, interlace = 0;
445 int packet_seq = track->vc1_info.packet_seq;
446 int packet_entry = track->vc1_info.packet_entry;
447 int slices = track->vc1_info.slices;
450 if (track->start_dts == AV_NOPTS_VALUE) {
451 /* No packets written yet, vc1_info isn't authoritative yet. */
452 /* Assume inline sequence and entry headers. */
453 packet_seq = packet_entry = 1;
454 av_log(NULL, AV_LOG_WARNING,
455 "moov atom written before any packets, unable to write correct "
456 "dvc1 atom. Set the delay_moov flag to fix this.\n");
459 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
461 return AVERROR(ENOMEM);
462 start = find_next_marker(track->vos_data, end);
463 for (next = start; next < end; start = next) {
466 next = find_next_marker(start + 4, end);
467 size = next - start - 4;
470 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
471 init_get_bits(&gb, unescaped, 8 * unescaped_size);
472 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
473 int profile = get_bits(&gb, 2);
474 if (profile != PROFILE_ADVANCED) {
476 return AVERROR(ENOSYS);
479 level = get_bits(&gb, 3);
480 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
482 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
483 skip_bits(&gb, 1); /* broadcast */
484 interlace = get_bits1(&gb);
485 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
490 return AVERROR(ENOSYS);
493 init_put_bits(&pbc, buf, 7);
494 /* VC1DecSpecStruc */
495 put_bits(&pbc, 4, 12); /* profile - advanced */
496 put_bits(&pbc, 3, level);
497 put_bits(&pbc, 1, 0); /* reserved */
498 /* VC1AdvDecSpecStruc */
499 put_bits(&pbc, 3, level);
500 put_bits(&pbc, 1, 0); /* cbr */
501 put_bits(&pbc, 6, 0); /* reserved */
502 put_bits(&pbc, 1, !interlace); /* no interlace */
503 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
504 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
505 put_bits(&pbc, 1, !slices); /* no slice code */
506 put_bits(&pbc, 1, 0); /* no bframe */
507 put_bits(&pbc, 1, 0); /* reserved */
510 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
511 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
513 put_bits32(&pbc, 0xffffffff);
515 flush_put_bits(&pbc);
522 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
524 uint8_t buf[7] = { 0 };
527 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
530 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
531 ffio_wfourcc(pb, "dvc1");
532 avio_write(pb, buf, sizeof(buf));
533 avio_write(pb, track->vos_data, track->vos_len);
538 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
540 avio_wb32(pb, track->vos_len + 8);
541 ffio_wfourcc(pb, "glbl");
542 avio_write(pb, track->vos_data, track->vos_len);
543 return 8 + track->vos_len;
547 * Compute flags for 'lpcm' tag.
548 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
550 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
553 case AV_CODEC_ID_PCM_F32BE:
554 case AV_CODEC_ID_PCM_F64BE:
556 case AV_CODEC_ID_PCM_F32LE:
557 case AV_CODEC_ID_PCM_F64LE:
559 case AV_CODEC_ID_PCM_U8:
561 case AV_CODEC_ID_PCM_S16BE:
562 case AV_CODEC_ID_PCM_S24BE:
563 case AV_CODEC_ID_PCM_S32BE:
565 case AV_CODEC_ID_PCM_S8:
566 case AV_CODEC_ID_PCM_S16LE:
567 case AV_CODEC_ID_PCM_S24LE:
568 case AV_CODEC_ID_PCM_S32LE:
575 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
579 if (cluster_idx >= track->entry)
582 if (cluster_idx + 1 == track->entry)
583 next_dts = track->track_duration + track->start_dts;
585 next_dts = track->cluster[cluster_idx + 1].dts;
587 return next_dts - track->cluster[cluster_idx].dts;
590 static int get_samples_per_packet(MOVTrack *track)
592 int i, first_duration;
594 /* use 1 for raw PCM */
595 if (!track->audio_vbr)
598 /* check to see if duration is constant for all clusters */
601 first_duration = get_cluster_duration(track, 0);
602 for (i = 1; i < track->entry; i++) {
603 if (get_cluster_duration(track, i) != first_duration)
606 return first_duration;
609 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
611 int64_t pos = avio_tell(pb);
613 uint32_t tag = track->tag;
615 if (track->mode == MODE_MOV) {
616 if (mov_get_lpcm_flags(track->par->codec_id))
617 tag = AV_RL32("lpcm");
621 avio_wb32(pb, 0); /* size */
622 avio_wl32(pb, tag); // store it byteswapped
623 avio_wb32(pb, 0); /* Reserved */
624 avio_wb16(pb, 0); /* Reserved */
625 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
627 /* SoundDescription */
628 avio_wb16(pb, version); /* Version */
629 avio_wb16(pb, 0); /* Revision level */
630 avio_wb32(pb, 0); /* Reserved */
635 avio_wb16(pb, 0xfffe);
637 avio_wb32(pb, 0x00010000);
639 avio_wb64(pb, av_double2int(track->par->sample_rate));
640 avio_wb32(pb, track->par->channels);
641 avio_wb32(pb, 0x7F000000);
642 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
643 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
644 avio_wb32(pb, track->sample_size);
645 avio_wb32(pb, get_samples_per_packet(track));
647 /* reserved for mp4/3gp */
652 avio_wb16(pb, 0); /* packet size (= 0) */
653 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
654 track->par->sample_rate : 0);
655 avio_wb16(pb, 0); /* Reserved */
658 if (track->mode == MODE_MOV &&
659 (track->par->codec_id == AV_CODEC_ID_AAC ||
660 track->par->codec_id == AV_CODEC_ID_AC3 ||
661 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
662 track->par->codec_id == AV_CODEC_ID_ALAC ||
663 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
664 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
665 mov_write_wave_tag(s, pb, track);
666 else if (track->tag == MKTAG('m','p','4','a'))
667 mov_write_esds_tag(pb, track);
668 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
669 mov_write_amr_tag(pb, track);
670 else if (track->par->codec_id == AV_CODEC_ID_AC3)
671 mov_write_ac3_tag(pb, track);
672 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
673 mov_write_extradata_tag(pb, track);
674 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
675 mov_write_wfex_tag(s, pb, track);
676 else if (track->vos_len > 0)
677 mov_write_glbl_tag(pb, track);
679 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
680 mov_write_chan_tag(s, pb, track);
682 return update_size(pb, pos);
685 static int mov_write_d263_tag(AVIOContext *pb)
687 avio_wb32(pb, 0xf); /* size */
688 ffio_wfourcc(pb, "d263");
689 ffio_wfourcc(pb, "FFMP");
690 avio_w8(pb, 0); /* decoder version */
691 /* FIXME use AVCodecContext level/profile, when encoder will set values */
692 avio_w8(pb, 0xa); /* level */
693 avio_w8(pb, 0); /* profile */
697 /* TODO: No idea about these values */
698 static int mov_write_svq3_tag(AVIOContext *pb)
701 ffio_wfourcc(pb, "SMI ");
702 ffio_wfourcc(pb, "SEQH");
704 avio_wb32(pb, 0xe2c0211d);
705 avio_wb32(pb, 0xc0000000);
710 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
712 int64_t pos = avio_tell(pb);
715 ffio_wfourcc(pb, "avcC");
716 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
717 return update_size(pb, pos);
720 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
722 int64_t pos = avio_tell(pb);
725 ffio_wfourcc(pb, "hvcC");
726 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
727 return update_size(pb, pos);
730 /* also used by all avid codecs (dv, imx, meridien) and their variants */
731 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
734 avio_wb32(pb, 24); /* size */
735 ffio_wfourcc(pb, "ACLR");
736 ffio_wfourcc(pb, "ACLR");
737 ffio_wfourcc(pb, "0001");
738 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
739 avio_wb32(pb, 0); /* unknown */
741 avio_wb32(pb, 24); /* size */
742 ffio_wfourcc(pb, "APRG");
743 ffio_wfourcc(pb, "APRG");
744 ffio_wfourcc(pb, "0001");
745 avio_wb32(pb, 1); /* unknown */
746 avio_wb32(pb, 0); /* unknown */
748 avio_wb32(pb, 120); /* size */
749 ffio_wfourcc(pb, "ARES");
750 ffio_wfourcc(pb, "ARES");
751 ffio_wfourcc(pb, "0001");
752 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
753 avio_wb32(pb, track->par->width);
754 /* values below are based on samples created with quicktime and avid codecs */
755 if (track->vos_data[5] & 2) { // interlaced
756 avio_wb32(pb, track->par->height / 2);
757 avio_wb32(pb, 2); /* unknown */
758 avio_wb32(pb, 0); /* unknown */
759 avio_wb32(pb, 4); /* unknown */
761 avio_wb32(pb, track->par->height);
762 avio_wb32(pb, 1); /* unknown */
763 avio_wb32(pb, 0); /* unknown */
764 if (track->par->height == 1080)
765 avio_wb32(pb, 5); /* unknown */
767 avio_wb32(pb, 6); /* unknown */
770 for (i = 0; i < 10; i++)
773 /* extra padding for stsd needed */
778 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
780 int tag = track->par->codec_tag;
782 if (!ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id))
785 if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
786 else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
787 else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
788 else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
789 else if (track->par->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
790 else if (track->par->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
791 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
792 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
793 else if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
798 static const AVCodecTag codec_ipod_tags[] = {
799 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
800 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
801 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
802 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
803 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
804 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
805 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
806 { AV_CODEC_ID_NONE, 0 },
809 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
811 int tag = track->par->codec_tag;
813 // keep original tag for subs, ipod supports both formats
814 if (!(track->par->codec_type == AVMEDIA_TYPE_SUBTITLE &&
815 (tag == MKTAG('t', 'x', '3', 'g') ||
816 tag == MKTAG('t', 'e', 'x', 't'))))
817 tag = ff_codec_get_tag(codec_ipod_tags, track->par->codec_id);
819 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
820 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
821 "Quicktime/Ipod might not play the file\n");
826 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
830 if (track->par->width == 720) /* SD */
831 if (track->par->height == 480) /* NTSC */
832 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
833 else tag = MKTAG('d','v','c',' ');
834 else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
835 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
836 else tag = MKTAG('d','v','p','p');
837 else if (track->par->height == 720) /* HD 720 line */
838 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
839 else tag = MKTAG('d','v','h','p');
840 else if (track->par->height == 1080) /* HD 1080 line */
841 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
842 else tag = MKTAG('d','v','h','6');
844 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
851 static const struct {
852 enum AVPixelFormat pix_fmt;
855 } mov_pix_fmt_tags[] = {
856 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
857 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
858 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
859 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
860 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
861 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
862 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
863 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
864 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
865 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
866 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
867 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
868 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
869 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
872 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
874 int tag = track->par->codec_tag;
877 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
878 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
879 tag = mov_pix_fmt_tags[i].tag;
880 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
888 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
890 int tag = track->par->codec_tag;
892 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
893 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
894 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
895 track->par->codec_id == AV_CODEC_ID_H263 ||
896 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
897 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
898 tag = mov_get_dv_codec_tag(s, track);
899 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
900 tag = mov_get_rawvideo_codec_tag(s, track);
901 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
902 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
903 if (!tag) { // if no mac fcc found, try with Microsoft tags
904 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
906 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
907 "the file may be unplayable!\n");
909 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
910 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
911 if (!tag) { // if no mac fcc found, try with Microsoft tags
912 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
914 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
915 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
916 "the file may be unplayable!\n");
919 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
920 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
926 static const AVCodecTag codec_3gp_tags[] = {
927 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
928 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
929 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
930 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
931 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
932 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
933 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
934 { AV_CODEC_ID_NONE, 0 },
937 static const AVCodecTag codec_f4v_tags[] = {
938 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
939 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
940 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
941 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
942 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
943 { AV_CODEC_ID_NONE, 0 },
946 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
950 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
951 tag = mp4_get_codec_tag(s, track);
952 else if (track->mode == MODE_ISM) {
953 tag = mp4_get_codec_tag(s, track);
954 if (!tag && track->par->codec_id == AV_CODEC_ID_WMAPRO)
955 tag = MKTAG('w', 'm', 'a', ' ');
956 } else if (track->mode == MODE_IPOD)
957 tag = ipod_get_codec_tag(s, track);
958 else if (track->mode & MODE_3GP)
959 tag = ff_codec_get_tag(codec_3gp_tags, track->par->codec_id);
960 else if (track->mode == MODE_F4V)
961 tag = ff_codec_get_tag(codec_f4v_tags, track->par->codec_id);
963 tag = mov_get_codec_tag(s, track);
969 * Needed to make file play in iPods running newest firmware
970 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
972 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
975 ffio_wfourcc(pb, "uuid");
976 avio_wb32(pb, 0x6b6840f2);
977 avio_wb32(pb, 0x5f244fc5);
978 avio_wb32(pb, 0xba39a51b);
979 avio_wb32(pb, 0xcf0323f3);
984 static const uint16_t fiel_data[] = {
985 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
988 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
990 unsigned mov_field_order = 0;
991 if (track->par->field_order < FF_ARRAY_ELEMS(fiel_data))
992 mov_field_order = fiel_data[track->par->field_order];
996 ffio_wfourcc(pb, "fiel");
997 avio_wb16(pb, mov_field_order);
1001 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1003 int64_t pos = avio_tell(pb);
1004 avio_wb32(pb, 0); /* size */
1005 avio_wl32(pb, track->tag); // store it byteswapped
1006 avio_wb32(pb, 0); /* Reserved */
1007 avio_wb16(pb, 0); /* Reserved */
1008 avio_wb16(pb, 1); /* Data-reference index */
1010 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1011 mov_write_esds_tag(pb, track);
1012 else if (track->par->extradata_size)
1013 avio_write(pb, track->par->extradata, track->par->extradata_size);
1015 return update_size(pb, pos);
1018 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1021 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1022 track->par->sample_aspect_ratio.den, INT_MAX);
1025 ffio_wfourcc(pb, "pasp");
1026 avio_wb32(pb, sar.num);
1027 avio_wb32(pb, sar.den);
1031 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1033 AVDictionaryEntry *encoder;
1034 int64_t pos = avio_tell(pb);
1035 char compressor_name[32] = { 0 };
1037 avio_wb32(pb, 0); /* size */
1038 avio_wl32(pb, track->tag); // store it byteswapped
1039 avio_wb32(pb, 0); /* Reserved */
1040 avio_wb16(pb, 0); /* Reserved */
1041 avio_wb16(pb, 1); /* Data-reference index */
1043 avio_wb16(pb, 0); /* Codec stream version */
1044 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1045 if (track->mode == MODE_MOV) {
1046 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1047 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1048 avio_wb32(pb, 0); /* Temporal Quality */
1049 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1051 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1052 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1055 avio_wb32(pb, 0); /* Reserved */
1056 avio_wb32(pb, 0); /* Reserved */
1057 avio_wb32(pb, 0); /* Reserved */
1059 avio_wb16(pb, track->par->width); /* Video width */
1060 avio_wb16(pb, track->height); /* Video height */
1061 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1062 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1063 avio_wb32(pb, 0); /* Data size (= 0) */
1064 avio_wb16(pb, 1); /* Frame count (= 1) */
1066 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1067 if (track->mode == MODE_MOV &&
1068 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1069 av_strlcpy(compressor_name, encoder->value, 32);
1070 avio_w8(pb, strlen(compressor_name));
1071 avio_write(pb, compressor_name, 31);
1073 if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1074 avio_wb16(pb, track->par->bits_per_coded_sample);
1076 avio_wb16(pb, 0x18); /* Reserved */
1077 avio_wb16(pb, 0xffff); /* Reserved */
1078 if (track->tag == MKTAG('m','p','4','v'))
1079 mov_write_esds_tag(pb, track);
1080 else if (track->par->codec_id == AV_CODEC_ID_H263)
1081 mov_write_d263_tag(pb);
1082 else if (track->par->codec_id == AV_CODEC_ID_SVQ3)
1083 mov_write_svq3_tag(pb);
1084 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1085 mov_write_avid_tag(pb, track);
1086 else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1087 mov_write_hvcc_tag(pb, track);
1088 else if (track->par->codec_id == AV_CODEC_ID_H264) {
1089 mov_write_avcc_tag(pb, track);
1090 if (track->mode == MODE_IPOD)
1091 mov_write_uuid_tag_ipod(pb);
1092 } else if (track->par->field_order != AV_FIELD_UNKNOWN)
1093 mov_write_fiel_tag(pb, track);
1094 else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1095 mov_write_dvc1_tag(pb, track);
1096 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1097 track->par->codec_id == AV_CODEC_ID_VP6A) {
1098 /* Don't write any potential extradata here - the cropping
1099 * is signalled via the normal width/height fields. */
1100 } else if (track->vos_len > 0)
1101 mov_write_glbl_tag(pb, track);
1103 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num &&
1104 track->par->sample_aspect_ratio.den != track->par->sample_aspect_ratio.num) {
1105 mov_write_pasp_tag(pb, track);
1108 return update_size(pb, pos);
1111 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1113 int64_t pos = avio_tell(pb);
1114 avio_wb32(pb, 0); /* size */
1115 ffio_wfourcc(pb, "rtp ");
1116 avio_wb32(pb, 0); /* Reserved */
1117 avio_wb16(pb, 0); /* Reserved */
1118 avio_wb16(pb, 1); /* Data-reference index */
1120 avio_wb16(pb, 1); /* Hint track version */
1121 avio_wb16(pb, 1); /* Highest compatible version */
1122 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1124 avio_wb32(pb, 12); /* size */
1125 ffio_wfourcc(pb, "tims");
1126 avio_wb32(pb, track->timescale);
1128 return update_size(pb, pos);
1131 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1133 int64_t pos = avio_tell(pb);
1135 avio_wb32(pb, 0); /* size */
1136 ffio_wfourcc(pb, "tmcd"); /* Data format */
1137 avio_wb32(pb, 0); /* Reserved */
1138 avio_wb32(pb, 1); /* Data reference index */
1139 if (track->par->extradata_size)
1140 avio_write(pb, track->par->extradata, track->par->extradata_size);
1141 return update_size(pb, pos);
1144 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1146 int64_t pos = avio_tell(pb);
1147 avio_wb32(pb, 0); /* size */
1148 ffio_wfourcc(pb, "stsd");
1149 avio_wb32(pb, 0); /* version & flags */
1150 avio_wb32(pb, 1); /* entry count */
1151 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1152 mov_write_video_tag(pb, track);
1153 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1154 mov_write_audio_tag(s, pb, track);
1155 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1156 mov_write_subtitle_tag(pb, track);
1157 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1158 mov_write_rtp_tag(pb, track);
1159 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1160 mov_write_tmcd_tag(pb, track);
1161 return update_size(pb, pos);
1164 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1166 MOVStts *ctts_entries;
1167 uint32_t entries = 0;
1171 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1173 return AVERROR(ENOMEM);
1174 ctts_entries[0].count = 1;
1175 ctts_entries[0].duration = track->cluster[0].cts;
1176 for (i = 1; i < track->entry; i++) {
1177 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1178 ctts_entries[entries].count++; /* compress */
1181 ctts_entries[entries].duration = track->cluster[i].cts;
1182 ctts_entries[entries].count = 1;
1185 entries++; /* last one */
1186 atom_size = 16 + (entries * 8);
1187 avio_wb32(pb, atom_size); /* size */
1188 ffio_wfourcc(pb, "ctts");
1189 avio_wb32(pb, 0); /* version & flags */
1190 avio_wb32(pb, entries); /* entry count */
1191 for (i = 0; i < entries; i++) {
1192 avio_wb32(pb, ctts_entries[i].count);
1193 avio_wb32(pb, ctts_entries[i].duration);
1195 av_free(ctts_entries);
1199 /* Time to sample atom */
1200 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1202 MOVStts *stts_entries = NULL;
1203 uint32_t entries = -1;
1207 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1208 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1210 return AVERROR(ENOMEM);
1211 stts_entries[0].count = track->sample_count;
1212 stts_entries[0].duration = 1;
1216 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1218 return AVERROR(ENOMEM);
1220 for (i = 0; i < track->entry; i++) {
1221 int duration = get_cluster_duration(track, i);
1222 if (i && duration == stts_entries[entries].duration) {
1223 stts_entries[entries].count++; /* compress */
1226 stts_entries[entries].duration = duration;
1227 stts_entries[entries].count = 1;
1230 entries++; /* last one */
1232 atom_size = 16 + (entries * 8);
1233 avio_wb32(pb, atom_size); /* size */
1234 ffio_wfourcc(pb, "stts");
1235 avio_wb32(pb, 0); /* version & flags */
1236 avio_wb32(pb, entries); /* entry count */
1237 for (i = 0; i < entries; i++) {
1238 avio_wb32(pb, stts_entries[i].count);
1239 avio_wb32(pb, stts_entries[i].duration);
1241 av_free(stts_entries);
1245 static int mov_write_dref_tag(AVIOContext *pb)
1247 avio_wb32(pb, 28); /* size */
1248 ffio_wfourcc(pb, "dref");
1249 avio_wb32(pb, 0); /* version & flags */
1250 avio_wb32(pb, 1); /* entry count */
1252 avio_wb32(pb, 0xc); /* size */
1253 ffio_wfourcc(pb, "url ");
1254 avio_wb32(pb, 1); /* version & flags */
1259 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1261 int64_t pos = avio_tell(pb);
1262 avio_wb32(pb, 0); /* size */
1263 ffio_wfourcc(pb, "stbl");
1264 mov_write_stsd_tag(s, pb, track);
1265 mov_write_stts_tag(pb, track);
1266 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1267 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
1268 track->has_keyframes && track->has_keyframes < track->entry)
1269 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1270 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1271 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1272 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
1273 track->flags & MOV_TRACK_CTTS && track->entry)
1274 mov_write_ctts_tag(pb, track);
1275 mov_write_stsc_tag(pb, track);
1276 mov_write_stsz_tag(pb, track);
1277 mov_write_stco_tag(pb, track);
1278 return update_size(pb, pos);
1281 static int mov_write_dinf_tag(AVIOContext *pb)
1283 int64_t pos = avio_tell(pb);
1284 avio_wb32(pb, 0); /* size */
1285 ffio_wfourcc(pb, "dinf");
1286 mov_write_dref_tag(pb);
1287 return update_size(pb, pos);
1290 static int mov_write_nmhd_tag(AVIOContext *pb)
1293 ffio_wfourcc(pb, "nmhd");
1298 static int mov_write_gmhd_tag(AVIOContext *pb)
1300 avio_wb32(pb, 0x20); /* size */
1301 ffio_wfourcc(pb, "gmhd");
1302 avio_wb32(pb, 0x18); /* gmin size */
1303 ffio_wfourcc(pb, "gmin");/* generic media info */
1304 avio_wb32(pb, 0); /* version & flags */
1305 avio_wb16(pb, 0x40); /* graphics mode = */
1306 avio_wb16(pb, 0x8000); /* opColor (r?) */
1307 avio_wb16(pb, 0x8000); /* opColor (g?) */
1308 avio_wb16(pb, 0x8000); /* opColor (b?) */
1309 avio_wb16(pb, 0); /* balance */
1310 avio_wb16(pb, 0); /* reserved */
1314 static int mov_write_smhd_tag(AVIOContext *pb)
1316 avio_wb32(pb, 16); /* size */
1317 ffio_wfourcc(pb, "smhd");
1318 avio_wb32(pb, 0); /* version & flags */
1319 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1320 avio_wb16(pb, 0); /* reserved */
1324 static int mov_write_vmhd_tag(AVIOContext *pb)
1326 avio_wb32(pb, 0x14); /* size (always 0x14) */
1327 ffio_wfourcc(pb, "vmhd");
1328 avio_wb32(pb, 0x01); /* version & flags */
1329 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1333 static int is_clcp_track(MOVTrack *track)
1335 return track->tag == MKTAG('c','7','0','8') ||
1336 track->tag == MKTAG('c','6','0','8');
1339 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1341 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1342 int64_t pos = avio_tell(pb);
1346 descr = "DataHandler";
1349 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1350 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1352 descr = "VideoHandler";
1353 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1355 descr = "SoundHandler";
1356 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1357 if (track->tag == MKTAG('t','x','3','g')) {
1359 } else if (track->tag == MKTAG('m','p','4','s')) {
1361 } else if (is_clcp_track(track)) {
1366 descr = "SubtitleHandler";
1367 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
1369 descr = "HintHandler";
1370 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
1372 descr = "TimeCodeHandler";
1375 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1376 track->par->codec_tag);
1378 av_log(s, AV_LOG_WARNING,
1379 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1380 tag_buf, track->par->codec_tag);
1383 // hdlr.name is used by some players to identify the content title
1384 // of the track. So if an alternate handler description is
1385 // specified, use it.
1386 AVDictionaryEntry *t;
1387 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1388 if (t && utf8len(t->value))
1393 avio_wb32(pb, 0); /* size */
1394 ffio_wfourcc(pb, "hdlr");
1395 avio_wb32(pb, 0); /* Version & flags */
1396 avio_write(pb, hdlr, 4); /* handler */
1397 ffio_wfourcc(pb, hdlr_type); /* handler type */
1398 avio_wb32(pb, 0); /* reserved */
1399 avio_wb32(pb, 0); /* reserved */
1400 avio_wb32(pb, 0); /* reserved */
1401 if (!track || track->mode == MODE_MOV)
1402 avio_w8(pb, strlen(descr)); /* pascal string */
1403 avio_write(pb, descr, strlen(descr)); /* handler description */
1404 if (track && track->mode != MODE_MOV)
1405 avio_w8(pb, 0); /* c string */
1406 return update_size(pb, pos);
1409 static int mov_write_hmhd_tag(AVIOContext *pb)
1411 /* This atom must be present, but leaving the values at zero
1412 * seems harmless. */
1413 avio_wb32(pb, 28); /* size */
1414 ffio_wfourcc(pb, "hmhd");
1415 avio_wb32(pb, 0); /* version, flags */
1416 avio_wb16(pb, 0); /* maxPDUsize */
1417 avio_wb16(pb, 0); /* avgPDUsize */
1418 avio_wb32(pb, 0); /* maxbitrate */
1419 avio_wb32(pb, 0); /* avgbitrate */
1420 avio_wb32(pb, 0); /* reserved */
1424 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1426 int64_t pos = avio_tell(pb);
1427 avio_wb32(pb, 0); /* size */
1428 ffio_wfourcc(pb, "minf");
1429 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1430 mov_write_vmhd_tag(pb);
1431 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1432 mov_write_smhd_tag(pb);
1433 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1434 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1435 mov_write_gmhd_tag(pb);
1437 mov_write_nmhd_tag(pb);
1439 } else if (track->tag == MKTAG('r','t','p',' ')) {
1440 mov_write_hmhd_tag(pb);
1441 } else if (track->tag == MKTAG('t','m','c','d')) {
1442 mov_write_gmhd_tag(pb);
1444 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1445 mov_write_hdlr_tag(s, pb, NULL);
1446 mov_write_dinf_tag(pb);
1447 mov_write_stbl_tag(s, pb, track);
1448 return update_size(pb, pos);
1451 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1454 int version = track->track_duration < INT32_MAX ? 0 : 1;
1456 if (track->mode == MODE_ISM)
1459 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1460 ffio_wfourcc(pb, "mdhd");
1461 avio_w8(pb, version);
1462 avio_wb24(pb, 0); /* flags */
1464 avio_wb64(pb, track->time);
1465 avio_wb64(pb, track->time);
1467 avio_wb32(pb, track->time); /* creation time */
1468 avio_wb32(pb, track->time); /* modification time */
1470 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1471 if (!track->entry && mov->mode == MODE_ISM)
1472 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1473 else if (!track->entry)
1474 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1476 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1477 avio_wb16(pb, track->language); /* language */
1478 avio_wb16(pb, 0); /* reserved (quality) */
1480 if (version != 0 && track->mode == MODE_MOV) {
1481 av_log(NULL, AV_LOG_ERROR,
1482 "FATAL error, file duration too long for timebase, this file will not be\n"
1483 "playable with quicktime. Choose a different timebase or a different\n"
1484 "container format\n");
1490 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
1491 MOVMuxContext *mov, MOVTrack *track)
1493 int64_t pos = avio_tell(pb);
1494 avio_wb32(pb, 0); /* size */
1495 ffio_wfourcc(pb, "mdia");
1496 mov_write_mdhd_tag(pb, mov, track);
1497 mov_write_hdlr_tag(s, pb, track);
1498 mov_write_minf_tag(s, pb, track);
1499 return update_size(pb, pos);
1502 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1503 MOVTrack *track, AVStream *st)
1505 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1506 track->timescale, AV_ROUND_UP);
1507 int version = duration < INT32_MAX ? 0 : 1;
1508 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1511 uint32_t *display_matrix = NULL;
1512 int display_matrix_size, i;
1515 if (mov->per_stream_grouping)
1518 group = st->codecpar->codec_type;
1520 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1521 &display_matrix_size);
1522 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1523 display_matrix = NULL;
1526 if (track->flags & MOV_TRACK_ENABLED)
1527 flags |= MOV_TKHD_FLAG_ENABLED;
1529 if (track->mode == MODE_ISM)
1532 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1533 ffio_wfourcc(pb, "tkhd");
1534 avio_w8(pb, version);
1535 avio_wb24(pb, flags);
1537 avio_wb64(pb, track->time);
1538 avio_wb64(pb, track->time);
1540 avio_wb32(pb, track->time); /* creation time */
1541 avio_wb32(pb, track->time); /* modification time */
1543 avio_wb32(pb, track->track_id); /* track-id */
1544 avio_wb32(pb, 0); /* reserved */
1545 if (!track->entry && mov->mode == MODE_ISM)
1546 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1547 else if (!track->entry)
1548 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1550 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1552 avio_wb32(pb, 0); /* reserved */
1553 avio_wb32(pb, 0); /* reserved */
1554 avio_wb16(pb, 0); /* layer */
1555 avio_wb16(pb, group); /* alternate group) */
1556 /* Volume, only for audio */
1557 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1558 avio_wb16(pb, 0x0100);
1561 avio_wb16(pb, 0); /* reserved */
1563 /* Matrix structure */
1564 if (display_matrix) {
1565 for (i = 0; i < 9; i++)
1566 avio_wb32(pb, display_matrix[i]);
1568 avio_wb32(pb, 0x00010000); /* reserved */
1569 avio_wb32(pb, 0x0); /* reserved */
1570 avio_wb32(pb, 0x0); /* reserved */
1571 avio_wb32(pb, 0x0); /* reserved */
1572 avio_wb32(pb, 0x00010000); /* reserved */
1573 avio_wb32(pb, 0x0); /* reserved */
1574 avio_wb32(pb, 0x0); /* reserved */
1575 avio_wb32(pb, 0x0); /* reserved */
1576 avio_wb32(pb, 0x40000000); /* reserved */
1579 /* Track width and height, for visual only */
1580 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1581 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1582 if (track->mode == MODE_MOV) {
1583 avio_wb32(pb, track->par->width << 16);
1584 avio_wb32(pb, track->height << 16);
1586 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1587 if (!sample_aspect_ratio || track->height != track->par->height)
1588 sample_aspect_ratio = 1;
1589 avio_wb32(pb, sample_aspect_ratio * track->par->width * 0x10000);
1590 avio_wb32(pb, track->height * 0x10000);
1599 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1601 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
1602 track->par->sample_aspect_ratio.den);
1604 int64_t pos = avio_tell(pb);
1606 avio_wb32(pb, 0); /* size */
1607 ffio_wfourcc(pb, "tapt");
1610 ffio_wfourcc(pb, "clef");
1612 avio_wb32(pb, width << 16);
1613 avio_wb32(pb, track->par->height << 16);
1616 ffio_wfourcc(pb, "prof");
1618 avio_wb32(pb, width << 16);
1619 avio_wb32(pb, track->par->height << 16);
1622 ffio_wfourcc(pb, "enof");
1624 avio_wb32(pb, track->par->width << 16);
1625 avio_wb32(pb, track->par->height << 16);
1627 return update_size(pb, pos);
1630 // This box seems important for the psp playback ... without it the movie seems to hang
1631 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1634 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1635 track->timescale, AV_ROUND_UP);
1636 int version = duration < INT32_MAX ? 0 : 1;
1637 int entry_size, entry_count, size;
1638 int64_t delay, start_ct = track->start_cts;
1639 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1640 track->timescale, AV_ROUND_DOWN);
1641 version |= delay < INT32_MAX ? 0 : 1;
1643 entry_size = (version == 1) ? 20 : 12;
1644 entry_count = 1 + (delay > 0);
1645 size = 24 + entry_count * entry_size;
1647 /* write the atom data */
1648 avio_wb32(pb, size);
1649 ffio_wfourcc(pb, "edts");
1650 avio_wb32(pb, size - 8);
1651 ffio_wfourcc(pb, "elst");
1652 avio_w8(pb, version);
1653 avio_wb24(pb, 0); /* flags */
1655 avio_wb32(pb, entry_count);
1656 if (delay > 0) { /* add an empty edit to delay presentation */
1657 /* In the positive delay case, the delay includes the cts
1658 * offset, and the second edit list entry below trims out
1659 * the same amount from the actual content. This makes sure
1660 * that the offset last sample is included in the edit
1661 * list duration as well. */
1663 avio_wb64(pb, delay);
1666 avio_wb32(pb, delay);
1669 avio_wb32(pb, 0x00010000);
1671 /* Avoid accidentally ending up with start_ct = -1 which has got a
1672 * special meaning. Normally start_ct should end up positive or zero
1673 * here, but use FFMIN in case dts is a a small positive integer
1674 * rounded to 0 when represented in MOV_TIMESCALE units. */
1675 start_ct = -FFMIN(track->start_dts, 0);
1676 /* Note, this delay is calculated from the pts of the first sample,
1677 * ensuring that we don't reduce the duration for cases with
1682 /* For fragmented files, we don't know the full length yet. Setting
1683 * duration to 0 allows us to only specify the offset, including
1684 * the rest of the content (from all future fragments) without specifying
1685 * an explicit duration. */
1686 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1691 avio_wb64(pb, duration);
1692 avio_wb64(pb, start_ct);
1694 avio_wb32(pb, duration);
1695 avio_wb32(pb, start_ct);
1697 avio_wb32(pb, 0x00010000);
1701 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1703 avio_wb32(pb, 20); // size
1704 ffio_wfourcc(pb, "tref");
1705 avio_wb32(pb, 12); // size (subatom)
1706 avio_wl32(pb, track->tref_tag);
1707 avio_wb32(pb, track->tref_id);
1711 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1712 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1714 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1715 ffio_wfourcc(pb, "uuid");
1716 ffio_wfourcc(pb, "USMT");
1717 avio_wb32(pb, 0x21d24fce);
1718 avio_wb32(pb, 0xbb88695c);
1719 avio_wb32(pb, 0xfac9c740);
1720 avio_wb32(pb, 0x1c); // another size here!
1721 ffio_wfourcc(pb, "MTDT");
1722 avio_wb32(pb, 0x00010012);
1723 avio_wb32(pb, 0x0a);
1724 avio_wb32(pb, 0x55c40000);
1730 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1732 AVFormatContext *ctx = track->rtp_ctx;
1733 char buf[1000] = "";
1736 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1737 NULL, NULL, 0, 0, ctx);
1738 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1741 avio_wb32(pb, len + 24);
1742 ffio_wfourcc(pb, "udta");
1743 avio_wb32(pb, len + 16);
1744 ffio_wfourcc(pb, "hnti");
1745 avio_wb32(pb, len + 8);
1746 ffio_wfourcc(pb, "sdp ");
1747 avio_write(pb, buf, len);
1751 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1752 const char *tag, const char *str)
1754 int64_t pos = avio_tell(pb);
1755 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1756 if (!t || !utf8len(t->value))
1759 avio_wb32(pb, 0); /* size */
1760 ffio_wfourcc(pb, tag); /* type */
1761 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1762 return update_size(pb, pos);
1765 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1768 AVIOContext *pb_buf;
1775 ret = avio_open_dyn_buf(&pb_buf);
1779 if (mov->mode & MODE_MP4)
1780 mov_write_track_metadata(pb_buf, st, "name", "title");
1782 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1783 avio_wb32(pb, size + 8);
1784 ffio_wfourcc(pb, "udta");
1785 avio_write(pb, buf, size);
1792 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1793 MOVTrack *track, AVStream *st)
1795 int64_t pos = avio_tell(pb);
1796 int entry_backup = track->entry;
1797 /* If we want to have an empty moov, but some samples already have been
1798 * buffered (delay_moov), pretend that no samples have been written yet. */
1799 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1802 avio_wb32(pb, 0); /* size */
1803 ffio_wfourcc(pb, "trak");
1804 mov_write_tkhd_tag(pb, mov, track, st);
1805 if (track->start_dts != AV_NOPTS_VALUE &&
1806 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1807 track->start_dts || is_clcp_track(track))) {
1808 if (mov->use_editlist)
1809 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1810 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1811 av_log(mov->fc, AV_LOG_WARNING,
1812 "Not writing any edit list even though one would have been required\n");
1814 if (track->tref_tag)
1815 mov_write_tref_tag(pb, track);
1816 mov_write_mdia_tag(mov->fc, pb, mov, track);
1817 if (track->mode == MODE_PSP)
1818 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1819 if (track->tag == MKTAG('r','t','p',' '))
1820 mov_write_udta_sdp(pb, track);
1821 if (track->mode == MODE_MOV) {
1822 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1823 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1824 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1825 mov_write_tapt_tag(pb, track);
1828 if (is_clcp_track(track)) {
1829 mov_write_tapt_tag(pb, track);
1832 mov_write_track_udta_tag(pb, mov, st);
1833 track->entry = entry_backup;
1834 return update_size(pb, pos);
1837 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1839 int i, has_audio = 0, has_video = 0;
1840 int64_t pos = avio_tell(pb);
1841 int audio_profile = mov->iods_audio_profile;
1842 int video_profile = mov->iods_video_profile;
1843 for (i = 0; i < mov->nb_streams; i++) {
1844 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1845 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
1846 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
1849 if (audio_profile < 0)
1850 audio_profile = 0xFF - has_audio;
1851 if (video_profile < 0)
1852 video_profile = 0xFF - has_video;
1853 avio_wb32(pb, 0x0); /* size */
1854 ffio_wfourcc(pb, "iods");
1855 avio_wb32(pb, 0); /* version & flags */
1856 put_descr(pb, 0x10, 7);
1857 avio_wb16(pb, 0x004f);
1860 avio_w8(pb, audio_profile);
1861 avio_w8(pb, video_profile);
1863 return update_size(pb, pos);
1866 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1868 avio_wb32(pb, 0x20); /* size */
1869 ffio_wfourcc(pb, "trex");
1870 avio_wb32(pb, 0); /* version & flags */
1871 avio_wb32(pb, track->track_id); /* track ID */
1872 avio_wb32(pb, 1); /* default sample description index */
1873 avio_wb32(pb, 0); /* default sample duration */
1874 avio_wb32(pb, 0); /* default sample size */
1875 avio_wb32(pb, 0); /* default sample flags */
1879 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1881 int64_t pos = avio_tell(pb);
1883 avio_wb32(pb, 0x0); /* size */
1884 ffio_wfourcc(pb, "mvex");
1885 for (i = 0; i < mov->nb_streams; i++)
1886 mov_write_trex_tag(pb, &mov->tracks[i]);
1887 return update_size(pb, pos);
1890 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1892 int max_track_id = 1, i;
1893 int64_t max_track_len_temp, max_track_len = 0;
1896 for (i = 0; i < mov->nb_streams; i++) {
1897 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1898 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1900 mov->tracks[i].timescale,
1902 if (max_track_len < max_track_len_temp)
1903 max_track_len = max_track_len_temp;
1904 if (max_track_id < mov->tracks[i].track_id)
1905 max_track_id = mov->tracks[i].track_id;
1908 /* If using delay_moov, make sure the output is the same as if no
1909 * samples had been written yet. */
1910 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1915 version = max_track_len < UINT32_MAX ? 0 : 1;
1916 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1917 ffio_wfourcc(pb, "mvhd");
1918 avio_w8(pb, version);
1919 avio_wb24(pb, 0); /* flags */
1921 avio_wb64(pb, mov->time);
1922 avio_wb64(pb, mov->time);
1924 avio_wb32(pb, mov->time); /* creation time */
1925 avio_wb32(pb, mov->time); /* modification time */
1927 avio_wb32(pb, MOV_TIMESCALE);
1928 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1930 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1931 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1932 avio_wb16(pb, 0); /* reserved */
1933 avio_wb32(pb, 0); /* reserved */
1934 avio_wb32(pb, 0); /* reserved */
1936 /* Matrix structure */
1937 avio_wb32(pb, 0x00010000); /* reserved */
1938 avio_wb32(pb, 0x0); /* reserved */
1939 avio_wb32(pb, 0x0); /* reserved */
1940 avio_wb32(pb, 0x0); /* reserved */
1941 avio_wb32(pb, 0x00010000); /* reserved */
1942 avio_wb32(pb, 0x0); /* reserved */
1943 avio_wb32(pb, 0x0); /* reserved */
1944 avio_wb32(pb, 0x0); /* reserved */
1945 avio_wb32(pb, 0x40000000); /* reserved */
1947 avio_wb32(pb, 0); /* reserved (preview time) */
1948 avio_wb32(pb, 0); /* reserved (preview duration) */
1949 avio_wb32(pb, 0); /* reserved (poster time) */
1950 avio_wb32(pb, 0); /* reserved (selection time) */
1951 avio_wb32(pb, 0); /* reserved (selection duration) */
1952 avio_wb32(pb, 0); /* reserved (current time) */
1953 avio_wb32(pb, max_track_id + 1); /* Next track id */
1957 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1960 avio_wb32(pb, 33); /* size */
1961 ffio_wfourcc(pb, "hdlr");
1964 ffio_wfourcc(pb, "mdir");
1965 ffio_wfourcc(pb, "appl");
1972 /* helper function to write a data tag with the specified string as data */
1973 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1976 int size = 16 + strlen(data);
1977 avio_wb32(pb, size); /* size */
1978 ffio_wfourcc(pb, "data");
1981 avio_write(pb, data, strlen(data));
1985 lang = ff_mov_iso639_to_lang("und", 1);
1986 avio_wb16(pb, strlen(data)); /* string length */
1987 avio_wb16(pb, lang);
1988 avio_write(pb, data, strlen(data));
1989 return strlen(data) + 4;
1993 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1994 const char *value, int lang, int long_style)
1997 if (value && value[0]) {
1998 int64_t pos = avio_tell(pb);
1999 avio_wb32(pb, 0); /* size */
2000 ffio_wfourcc(pb, name);
2001 mov_write_string_data_tag(pb, value, lang, long_style);
2002 size = update_size(pb, pos);
2007 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
2008 const char *tag, int *lang)
2011 AVDictionaryEntry *t, *t2 = NULL;
2016 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2019 len = strlen(t->key);
2020 snprintf(tag2, sizeof(tag2), "%s-", tag);
2021 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2022 len2 = strlen(t2->key);
2023 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2024 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2032 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2033 const char *name, const char *tag,
2037 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
2040 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2043 /* iTunes track number */
2044 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2047 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2048 int size = 0, track = t ? atoi(t->value) : 0;
2050 avio_wb32(pb, 32); /* size */
2051 ffio_wfourcc(pb, "trkn");
2052 avio_wb32(pb, 24); /* size */
2053 ffio_wfourcc(pb, "data");
2054 avio_wb32(pb, 0); // 8 bytes empty
2056 avio_wb16(pb, 0); // empty
2057 avio_wb16(pb, track); // track number
2058 avio_wb16(pb, 0); // total track number
2059 avio_wb16(pb, 0); // empty
2065 /* iTunes meta data list */
2066 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2069 int64_t pos = avio_tell(pb);
2070 avio_wb32(pb, 0); /* size */
2071 ffio_wfourcc(pb, "ilst");
2072 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2073 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2074 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2075 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2076 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2077 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2078 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2079 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2080 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2082 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2083 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2084 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2085 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2086 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2087 mov_write_string_metadata(s, pb, "desc", "description",1);
2088 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2089 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2090 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2091 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2092 mov_write_trkn_tag(pb, mov, s);
2093 return update_size(pb, pos);
2096 /* iTunes meta data tag */
2097 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2101 int64_t pos = avio_tell(pb);
2102 avio_wb32(pb, 0); /* size */
2103 ffio_wfourcc(pb, "meta");
2105 mov_write_itunes_hdlr_tag(pb, mov, s);
2106 mov_write_ilst_tag(pb, mov, s);
2107 size = update_size(pb, pos);
2111 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2115 GET_UTF8(val, *b++, return -1;)
2118 avio_wb16(pb, 0x00);
2122 static uint16_t language_code(const char *str)
2124 return (((str[0] - 0x60) & 0x1F) << 10) +
2125 (((str[1] - 0x60) & 0x1F) << 5) +
2126 (( str[2] - 0x60) & 0x1F);
2129 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2130 const char *tag, const char *str)
2132 int64_t pos = avio_tell(pb);
2133 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2134 if (!t || !utf8len(t->value))
2136 avio_wb32(pb, 0); /* size */
2137 ffio_wfourcc(pb, tag); /* type */
2138 avio_wb32(pb, 0); /* version + flags */
2139 if (!strcmp(tag, "yrrc"))
2140 avio_wb16(pb, atoi(t->value));
2142 avio_wb16(pb, language_code("eng")); /* language */
2143 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2144 if (!strcmp(tag, "albm") &&
2145 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2146 avio_w8(pb, atoi(t->value));
2148 return update_size(pb, pos);
2151 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2153 int64_t pos = avio_tell(pb);
2154 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2156 avio_wb32(pb, 0); // size
2157 ffio_wfourcc(pb, "chpl");
2158 avio_wb32(pb, 0x01000000); // version + flags
2159 avio_wb32(pb, 0); // unknown
2160 avio_w8(pb, nb_chapters);
2162 for (i = 0; i < nb_chapters; i++) {
2163 AVChapter *c = s->chapters[i];
2164 AVDictionaryEntry *t;
2165 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2167 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2168 int len = FFMIN(strlen(t->value), 255);
2170 avio_write(pb, t->value, len);
2174 return update_size(pb, pos);
2177 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2180 AVIOContext *pb_buf;
2184 ret = avio_open_dyn_buf(&pb_buf);
2188 if (mov->mode & MODE_3GP) {
2189 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2190 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2191 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2192 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2193 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2194 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2195 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2196 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2197 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2198 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2199 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2200 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2201 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2202 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2203 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2204 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2205 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2206 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2207 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2208 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2209 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2210 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
2212 /* iTunes meta data */
2213 mov_write_meta_tag(pb_buf, mov, s);
2216 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2217 mov_write_chpl_tag(pb_buf, s);
2219 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2220 avio_wb32(pb, size + 8);
2221 ffio_wfourcc(pb, "udta");
2222 avio_write(pb, buf, size);
2229 static void mov_write_psp_udta_tag(AVIOContext *pb,
2230 const char *str, const char *lang, int type)
2232 int len = utf8len(str) + 1;
2235 avio_wb16(pb, len * 2 + 10); /* size */
2236 avio_wb32(pb, type); /* type */
2237 avio_wb16(pb, language_code(lang)); /* language */
2238 avio_wb16(pb, 0x01); /* ? */
2239 ascii_to_wc(pb, str);
2242 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2244 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2248 pos = avio_tell(pb);
2249 avio_wb32(pb, 0); /* size placeholder*/
2250 ffio_wfourcc(pb, "uuid");
2251 ffio_wfourcc(pb, "USMT");
2252 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2253 avio_wb32(pb, 0xbb88695c);
2254 avio_wb32(pb, 0xfac9c740);
2256 pos2 = avio_tell(pb);
2257 avio_wb32(pb, 0); /* size placeholder*/
2258 ffio_wfourcc(pb, "MTDT");
2262 avio_wb16(pb, 0x0C); /* size */
2263 avio_wb32(pb, 0x0B); /* type */
2264 avio_wb16(pb, language_code("und")); /* language */
2265 avio_wb16(pb, 0x0); /* ? */
2266 avio_wb16(pb, 0x021C); /* data */
2268 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2269 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2270 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2272 update_size(pb, pos2);
2273 return update_size(pb, pos);
2279 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2283 int64_t pos = avio_tell(pb);
2284 avio_wb32(pb, 0); /* size placeholder*/
2285 ffio_wfourcc(pb, "moov");
2287 for (i = 0; i < mov->nb_streams; i++) {
2288 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2291 mov->tracks[i].time = mov->time;
2292 mov->tracks[i].track_id = i + 1;
2295 if (mov->chapter_track)
2296 for (i = 0; i < s->nb_streams; i++) {
2297 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2298 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2300 for (i = 0; i < mov->nb_streams; i++) {
2301 MOVTrack *track = &mov->tracks[i];
2302 if (track->tag == MKTAG('r','t','p',' ')) {
2303 track->tref_tag = MKTAG('h','i','n','t');
2304 track->tref_id = mov->tracks[track->src_track].track_id;
2305 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2306 int * fallback, size;
2307 fallback = (int*)av_stream_get_side_data(track->st,
2308 AV_PKT_DATA_FALLBACK_TRACK,
2310 if (fallback != NULL && size == sizeof(int)) {
2311 if (*fallback >= 0 && *fallback < mov->nb_streams) {
2312 track->tref_tag = MKTAG('f','a','l','l');
2313 track->tref_id = mov->tracks[*fallback].track_id;
2319 mov_write_mvhd_tag(pb, mov);
2320 if (mov->mode != MODE_MOV && !mov->iods_skip)
2321 mov_write_iods_tag(pb, mov);
2322 for (i = 0; i < mov->nb_streams; i++) {
2323 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2324 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2327 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2328 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2330 if (mov->mode == MODE_PSP)
2331 mov_write_uuidusmt_tag(pb, s);
2333 mov_write_udta_tag(pb, mov, s);
2335 return update_size(pb, pos);
2338 static void param_write_int(AVIOContext *pb, const char *name, int value)
2340 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2343 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2345 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2348 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2351 len = FFMIN(sizeof(buf) / 2 - 1, len);
2352 ff_data_to_hex(buf, value, len, 0);
2353 buf[2 * len] = '\0';
2354 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2357 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2359 int64_t pos = avio_tell(pb);
2361 static const uint8_t uuid[] = {
2362 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2363 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2367 ffio_wfourcc(pb, "uuid");
2368 avio_write(pb, uuid, sizeof(uuid));
2371 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2372 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2373 avio_printf(pb, "<head>\n");
2374 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2376 avio_printf(pb, "</head>\n");
2377 avio_printf(pb, "<body>\n");
2378 avio_printf(pb, "<switch>\n");
2379 for (i = 0; i < mov->nb_streams; i++) {
2380 MOVTrack *track = &mov->tracks[i];
2382 /* track->track_id is initialized in write_moov, and thus isn't known
2384 int track_id = i + 1;
2386 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2388 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2393 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2394 track->par->bit_rate);
2395 param_write_int(pb, "systemBitrate", track->par->bit_rate);
2396 param_write_int(pb, "trackID", track_id);
2397 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2398 if (track->par->codec_id == AV_CODEC_ID_H264) {
2400 int size = track->par->extradata_size;
2401 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
2403 param_write_hex(pb, "CodecPrivateData",
2404 ptr ? ptr : track->par->extradata,
2408 param_write_string(pb, "FourCC", "H264");
2409 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
2410 param_write_string(pb, "FourCC", "WVC1");
2411 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2412 track->par->extradata_size);
2414 param_write_int(pb, "MaxWidth", track->par->width);
2415 param_write_int(pb, "MaxHeight", track->par->height);
2416 param_write_int(pb, "DisplayWidth", track->par->width);
2417 param_write_int(pb, "DisplayHeight", track->par->height);
2419 if (track->par->codec_id == AV_CODEC_ID_AAC) {
2420 param_write_string(pb, "FourCC", "AACL");
2421 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
2422 param_write_string(pb, "FourCC", "WMAP");
2424 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2425 track->par->extradata_size);
2426 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2427 track->par->codec_id));
2428 param_write_int(pb, "Channels", track->par->channels);
2429 param_write_int(pb, "SamplingRate", track->par->sample_rate);
2430 param_write_int(pb, "BitsPerSample", 16);
2431 param_write_int(pb, "PacketSize", track->par->block_align ?
2432 track->par->block_align : 4);
2434 avio_printf(pb, "</%s>\n", type);
2436 avio_printf(pb, "</switch>\n");
2437 avio_printf(pb, "</body>\n");
2438 avio_printf(pb, "</smil>\n");
2440 return update_size(pb, pos);
2443 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2446 ffio_wfourcc(pb, "mfhd");
2448 avio_wb32(pb, mov->fragments);
2452 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2454 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2455 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2458 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2459 MOVTrack *track, int64_t moof_offset)
2461 int64_t pos = avio_tell(pb);
2462 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2463 MOV_TFHD_BASE_DATA_OFFSET;
2464 if (!track->entry) {
2465 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2467 flags |= MOV_TFHD_DEFAULT_FLAGS;
2469 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2470 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2471 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2472 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2473 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2476 /* Don't set a default sample size, the silverlight player refuses
2477 * to play files with that set. Don't set a default sample duration,
2478 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2479 * file format says it MUST NOT be set. */
2480 if (track->mode == MODE_ISM)
2481 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2482 MOV_TFHD_BASE_DATA_OFFSET);
2484 avio_wb32(pb, 0); /* size placeholder */
2485 ffio_wfourcc(pb, "tfhd");
2486 avio_w8(pb, 0); /* version */
2487 avio_wb24(pb, flags);
2489 avio_wb32(pb, track->track_id); /* track-id */
2490 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2491 avio_wb64(pb, moof_offset);
2492 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2493 track->default_duration = get_cluster_duration(track, 0);
2494 avio_wb32(pb, track->default_duration);
2496 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2497 track->default_size = track->entry ? track->cluster[0].size : 1;
2498 avio_wb32(pb, track->default_size);
2500 track->default_size = -1;
2502 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2503 /* Set the default flags based on the second sample, if available.
2504 * If the first sample is different, that can be signaled via a separate field. */
2505 if (track->entry > 1)
2506 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2508 track->default_sample_flags =
2509 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
2510 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2511 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2512 avio_wb32(pb, track->default_sample_flags);
2515 return update_size(pb, pos);
2518 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2519 MOVTrack *track, int moof_size,
2522 int64_t pos = avio_tell(pb);
2523 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2526 for (i = first; i < end; i++) {
2527 if (get_cluster_duration(track, i) != track->default_duration)
2528 flags |= MOV_TRUN_SAMPLE_DURATION;
2529 if (track->cluster[i].size != track->default_size)
2530 flags |= MOV_TRUN_SAMPLE_SIZE;
2531 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2532 flags |= MOV_TRUN_SAMPLE_FLAGS;
2534 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2535 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2536 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2537 if (track->flags & MOV_TRACK_CTTS)
2538 flags |= MOV_TRUN_SAMPLE_CTS;
2540 avio_wb32(pb, 0); /* size placeholder */
2541 ffio_wfourcc(pb, "trun");
2542 avio_w8(pb, 0); /* version */
2543 avio_wb24(pb, flags);
2545 avio_wb32(pb, end - first); /* sample count */
2546 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2547 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2549 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2551 avio_wb32(pb, moof_size + 8 + track->data_offset +
2552 track->cluster[first].pos); /* data offset */
2553 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2554 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2556 for (i = first; i < end; i++) {
2557 if (flags & MOV_TRUN_SAMPLE_DURATION)
2558 avio_wb32(pb, get_cluster_duration(track, i));
2559 if (flags & MOV_TRUN_SAMPLE_SIZE)
2560 avio_wb32(pb, track->cluster[i].size);
2561 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2562 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2563 if (flags & MOV_TRUN_SAMPLE_CTS)
2564 avio_wb32(pb, track->cluster[i].cts);
2567 mov->first_trun = 0;
2568 return update_size(pb, pos);
2571 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2573 int64_t pos = avio_tell(pb);
2574 static const uint8_t uuid[] = {
2575 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2576 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2579 avio_wb32(pb, 0); /* size placeholder */
2580 ffio_wfourcc(pb, "uuid");
2581 avio_write(pb, uuid, sizeof(uuid));
2584 avio_wb64(pb, track->start_dts + track->frag_start +
2585 track->cluster[0].cts);
2586 avio_wb64(pb, track->end_pts -
2587 (track->cluster[0].dts + track->cluster[0].cts));
2589 return update_size(pb, pos);
2592 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2593 MOVTrack *track, int entry)
2595 int n = track->nb_frag_info - 1 - entry, i;
2596 int size = 8 + 16 + 4 + 1 + 16*n;
2597 static const uint8_t uuid[] = {
2598 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2599 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2605 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2606 avio_wb32(pb, size);
2607 ffio_wfourcc(pb, "uuid");
2608 avio_write(pb, uuid, sizeof(uuid));
2612 for (i = 0; i < n; i++) {
2613 int index = entry + 1 + i;
2614 avio_wb64(pb, track->frag_info[index].time);
2615 avio_wb64(pb, track->frag_info[index].duration);
2617 if (n < mov->ism_lookahead) {
2618 int free_size = 16 * (mov->ism_lookahead - n);
2619 avio_wb32(pb, free_size);
2620 ffio_wfourcc(pb, "free");
2621 for (i = 0; i < free_size - 8; i++)
2628 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2631 int64_t pos = avio_tell(pb);
2633 for (i = 0; i < mov->ism_lookahead; i++) {
2634 /* Update the tfrf tag for the last ism_lookahead fragments,
2635 * nb_frag_info - 1 is the next fragment to be written. */
2636 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2638 avio_seek(pb, pos, SEEK_SET);
2642 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2646 for (i = 0; i < mov->nb_streams; i++) {
2647 MOVTrack *track = &mov->tracks[i];
2648 MOVFragmentInfo *info;
2649 if ((tracks >= 0 && i != tracks) || !track->entry)
2651 track->nb_frag_info++;
2652 if (track->nb_frag_info >= track->frag_info_capacity) {
2653 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2654 if (av_reallocp_array(&track->frag_info,
2656 sizeof(*track->frag_info)))
2657 return AVERROR(ENOMEM);
2658 track->frag_info_capacity = new_capacity;
2660 info = &track->frag_info[track->nb_frag_info - 1];
2661 info->offset = avio_tell(pb);
2663 // Try to recreate the original pts for the first packet
2664 // from the fields we have stored
2665 info->time = track->start_dts + track->frag_start +
2666 track->cluster[0].cts;
2667 info->duration = track->end_pts -
2668 (track->cluster[0].dts + track->cluster[0].cts);
2669 // If the pts is less than zero, we will have trimmed
2670 // away parts of the media track using an edit list,
2671 // and the corresponding start presentation time is zero.
2672 if (info->time < 0) {
2673 info->duration += info->time;
2676 info->tfrf_offset = 0;
2677 mov_write_tfrf_tags(pb, mov, track);
2682 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2684 int64_t pos = avio_tell(pb);
2686 avio_wb32(pb, 0); /* size */
2687 ffio_wfourcc(pb, "tfdt");
2688 avio_w8(pb, 1); /* version */
2690 avio_wb64(pb, track->frag_start);
2691 return update_size(pb, pos);
2694 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2695 MOVTrack *track, int64_t moof_offset,
2698 int64_t pos = avio_tell(pb);
2700 avio_wb32(pb, 0); /* size placeholder */
2701 ffio_wfourcc(pb, "traf");
2703 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2704 if (mov->mode != MODE_ISM)
2705 mov_write_tfdt_tag(pb, track);
2706 for (i = 1; i < track->entry; i++) {
2707 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2708 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2712 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2713 if (mov->mode == MODE_ISM) {
2714 mov_write_tfxd_tag(pb, track);
2716 if (mov->ism_lookahead) {
2717 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2719 if (track->nb_frag_info > 0) {
2720 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2721 if (!info->tfrf_offset)
2722 info->tfrf_offset = avio_tell(pb);
2724 avio_wb32(pb, 8 + size);
2725 ffio_wfourcc(pb, "free");
2726 for (i = 0; i < size; i++)
2731 return update_size(pb, pos);
2734 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2735 int tracks, int moof_size)
2737 int64_t pos = avio_tell(pb);
2740 avio_wb32(pb, 0); /* size placeholder */
2741 ffio_wfourcc(pb, "moof");
2742 mov->first_trun = 1;
2744 mov_write_mfhd_tag(pb, mov);
2745 for (i = 0; i < mov->nb_streams; i++) {
2746 MOVTrack *track = &mov->tracks[i];
2747 if (tracks >= 0 && i != tracks)
2751 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2754 return update_size(pb, pos);
2757 static int mov_write_sidx_tag(AVIOContext *pb,
2758 MOVTrack *track, int ref_size, int total_sidx_size)
2760 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2761 int64_t presentation_time, duration, offset;
2762 int starts_with_SAP, i, entries;
2766 presentation_time = track->start_dts + track->frag_start +
2767 track->cluster[0].cts;
2768 duration = track->end_pts -
2769 (track->cluster[0].dts + track->cluster[0].cts);
2770 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2772 // pts<0 should be cut away using edts
2773 if (presentation_time < 0) {
2774 duration += presentation_time;
2775 presentation_time = 0;
2778 entries = track->nb_frag_info;
2781 presentation_time = track->frag_info[0].time;
2784 avio_wb32(pb, 0); /* size */
2785 ffio_wfourcc(pb, "sidx");
2786 avio_w8(pb, 1); /* version */
2788 avio_wb32(pb, track->track_id); /* reference_ID */
2789 avio_wb32(pb, track->timescale); /* timescale */
2790 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2791 offset_pos = avio_tell(pb);
2792 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2793 avio_wb16(pb, 0); /* reserved */
2795 avio_wb16(pb, entries); /* reference_count */
2796 for (i = 0; i < entries; i++) {
2797 if (!track->entry) {
2798 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2799 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2801 duration = track->frag_info[i].duration;
2802 ref_size = track->frag_info[i].size;
2803 starts_with_SAP = 1;
2805 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2806 avio_wb32(pb, duration); /* subsegment_duration */
2807 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2810 end_pos = avio_tell(pb);
2811 offset = pos + total_sidx_size - end_pos;
2812 avio_seek(pb, offset_pos, SEEK_SET);
2813 avio_wb64(pb, offset);
2814 avio_seek(pb, end_pos, SEEK_SET);
2815 return update_size(pb, pos);
2818 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2819 int tracks, int ref_size)
2822 AVIOContext *avio_buf;
2824 for (round = 0; round < 2; round++) {
2825 // First run one round to calculate the total size of all
2827 // This would be much simpler if we'd only write one sidx
2828 // atom, for the first track in the moof.
2830 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2835 for (i = 0; i < mov->nb_streams; i++) {
2836 MOVTrack *track = &mov->tracks[i];
2837 if (tracks >= 0 && i != tracks)
2839 // When writing a sidx for the full file, entry is 0, but
2840 // we want to include all tracks. ref_size is 0 in this case,
2841 // since we read it from frag_info instead.
2842 if (!track->entry && ref_size > 0)
2844 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2848 total_size = ffio_close_null_buf(avio_buf);
2853 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2856 AVIOContext *avio_buf;
2859 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2861 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2862 moof_size = ffio_close_null_buf(avio_buf);
2864 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
2865 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2867 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2870 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2873 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2875 int64_t pos = avio_tell(pb);
2878 avio_wb32(pb, 0); /* size placeholder */
2879 ffio_wfourcc(pb, "tfra");
2880 avio_w8(pb, 1); /* version */
2883 avio_wb32(pb, track->track_id);
2884 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2885 avio_wb32(pb, track->nb_frag_info);
2886 for (i = 0; i < track->nb_frag_info; i++) {
2887 avio_wb64(pb, track->frag_info[i].time);
2888 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2889 avio_w8(pb, 1); /* traf number */
2890 avio_w8(pb, 1); /* trun number */
2891 avio_w8(pb, 1); /* sample number */
2894 return update_size(pb, pos);
2897 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2899 int64_t pos = avio_tell(pb);
2902 avio_wb32(pb, 0); /* size placeholder */
2903 ffio_wfourcc(pb, "mfra");
2904 /* An empty mfra atom is enough to indicate to the publishing point that
2905 * the stream has ended. */
2906 if (mov->flags & FF_MOV_FLAG_ISML)
2907 return update_size(pb, pos);
2909 for (i = 0; i < mov->nb_streams; i++) {
2910 MOVTrack *track = &mov->tracks[i];
2911 if (track->nb_frag_info)
2912 mov_write_tfra_tag(pb, track);
2916 ffio_wfourcc(pb, "mfro");
2917 avio_wb32(pb, 0); /* version + flags */
2918 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2920 return update_size(pb, pos);
2923 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2925 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2926 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2928 mov->mdat_pos = avio_tell(pb);
2929 avio_wb32(pb, 0); /* size placeholder*/
2930 ffio_wfourcc(pb, "mdat");
2934 /* TODO: This needs to be more general */
2935 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2937 MOVMuxContext *mov = s->priv_data;
2938 int64_t pos = avio_tell(pb);
2939 int has_h264 = 0, has_video = 0;
2943 for (i = 0; i < s->nb_streams; i++) {
2944 AVStream *st = s->streams[i];
2945 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2947 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
2951 avio_wb32(pb, 0); /* size */
2952 ffio_wfourcc(pb, "ftyp");
2954 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2955 ffio_wfourcc(pb, mov->major_brand);
2956 else if (mov->mode == MODE_3GP) {
2957 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2958 minor = has_h264 ? 0x100 : 0x200;
2959 } else if (mov->mode & MODE_3G2) {
2960 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2961 minor = has_h264 ? 0x20000 : 0x10000;
2962 } else if (mov->mode == MODE_PSP)
2963 ffio_wfourcc(pb, "MSNV");
2964 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2965 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2966 else if (mov->mode == MODE_MP4)
2967 ffio_wfourcc(pb, "isom");
2968 else if (mov->mode == MODE_IPOD)
2969 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2970 else if (mov->mode == MODE_ISM)
2971 ffio_wfourcc(pb, "isml");
2972 else if (mov->mode == MODE_F4V)
2973 ffio_wfourcc(pb, "f4v ");
2975 ffio_wfourcc(pb, "qt ");
2977 avio_wb32(pb, minor);
2979 if (mov->mode == MODE_MOV)
2980 ffio_wfourcc(pb, "qt ");
2981 else if (mov->mode == MODE_ISM) {
2982 ffio_wfourcc(pb, "piff");
2983 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
2984 ffio_wfourcc(pb, "isom");
2985 ffio_wfourcc(pb, "iso2");
2987 ffio_wfourcc(pb, "avc1");
2990 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
2991 // brand. This is compatible with users that don't understand tfdt.
2992 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
2993 ffio_wfourcc(pb, "iso6");
2995 if (mov->mode == MODE_3GP)
2996 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2997 else if (mov->mode & MODE_3G2)
2998 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2999 else if (mov->mode == MODE_PSP)
3000 ffio_wfourcc(pb, "MSNV");
3001 else if (mov->mode == MODE_MP4)
3002 ffio_wfourcc(pb, "mp41");
3004 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3005 ffio_wfourcc(pb, "dash");
3007 return update_size(pb, pos);
3010 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3012 AVStream *video_st = s->streams[0];
3013 AVCodecParameters *video_par = s->streams[0]->codecpar;
3014 AVCodecParameters *audio_par = s->streams[1]->codecpar;
3015 int audio_rate = audio_par->sample_rate;
3016 // TODO: should be avg_frame_rate
3017 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3018 int audio_kbitrate = audio_par->bit_rate / 1000;
3019 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
3021 avio_wb32(pb, 0x94); /* size */
3022 ffio_wfourcc(pb, "uuid");
3023 ffio_wfourcc(pb, "PROF");
3025 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3026 avio_wb32(pb, 0xbb88695c);
3027 avio_wb32(pb, 0xfac9c740);
3029 avio_wb32(pb, 0x0); /* ? */
3030 avio_wb32(pb, 0x3); /* 3 sections ? */
3032 avio_wb32(pb, 0x14); /* size */
3033 ffio_wfourcc(pb, "FPRF");
3034 avio_wb32(pb, 0x0); /* ? */
3035 avio_wb32(pb, 0x0); /* ? */
3036 avio_wb32(pb, 0x0); /* ? */
3038 avio_wb32(pb, 0x2c); /* size */
3039 ffio_wfourcc(pb, "APRF"); /* audio */
3041 avio_wb32(pb, 0x2); /* TrackID */
3042 ffio_wfourcc(pb, "mp4a");
3043 avio_wb32(pb, 0x20f);
3045 avio_wb32(pb, audio_kbitrate);
3046 avio_wb32(pb, audio_kbitrate);
3047 avio_wb32(pb, audio_rate);
3048 avio_wb32(pb, audio_par->channels);
3050 avio_wb32(pb, 0x34); /* size */
3051 ffio_wfourcc(pb, "VPRF"); /* video */
3053 avio_wb32(pb, 0x1); /* TrackID */
3054 if (video_par->codec_id == AV_CODEC_ID_H264) {
3055 ffio_wfourcc(pb, "avc1");
3056 avio_wb16(pb, 0x014D);
3057 avio_wb16(pb, 0x0015);
3059 ffio_wfourcc(pb, "mp4v");
3060 avio_wb16(pb, 0x0000);
3061 avio_wb16(pb, 0x0103);
3064 avio_wb32(pb, video_kbitrate);
3065 avio_wb32(pb, video_kbitrate);
3066 avio_wb32(pb, frame_rate);
3067 avio_wb32(pb, frame_rate);
3068 avio_wb16(pb, video_par->width);
3069 avio_wb16(pb, video_par->height);
3070 avio_wb32(pb, 0x010001); /* ? */
3073 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3075 MOVMuxContext *mov = s->priv_data;
3076 mov_write_ftyp_tag(pb,s);
3077 if (mov->mode == MODE_PSP) {
3078 if (s->nb_streams != 2) {
3079 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3080 return AVERROR(EINVAL);
3082 mov_write_uuidprof_tag(pb, s);
3087 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3090 int i, closed_gop = 0;
3092 for (i = 0; i < pkt->size - 4; i++) {
3093 c = (c << 8) + pkt->data[i];
3094 if (c == 0x1b8) { // gop
3095 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3096 } else if (c == 0x100) { // pic
3097 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3098 if (!temp_ref || closed_gop) // I picture is not reordered
3099 *flags = MOV_SYNC_SAMPLE;
3101 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3108 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3110 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3111 int seq = 0, entry = 0;
3112 int key = pkt->flags & AV_PKT_FLAG_KEY;
3113 start = find_next_marker(pkt->data, end);
3114 for (next = start; next < end; start = next) {
3115 next = find_next_marker(start + 4, end);
3116 switch (AV_RB32(start)) {
3117 case VC1_CODE_SEQHDR:
3120 case VC1_CODE_ENTRYPOINT:
3123 case VC1_CODE_SLICE:
3124 trk->vc1_info.slices = 1;
3128 if (!trk->entry && trk->vc1_info.first_packet_seen)
3129 trk->vc1_info.first_frag_written = 1;
3130 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3131 /* First packet in first fragment */
3132 trk->vc1_info.first_packet_seq = seq;
3133 trk->vc1_info.first_packet_entry = entry;
3134 trk->vc1_info.first_packet_seen = 1;
3135 } else if ((seq && !trk->vc1_info.packet_seq) ||
3136 (entry && !trk->vc1_info.packet_entry)) {
3138 for (i = 0; i < trk->entry; i++)
3139 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3140 trk->has_keyframes = 0;
3142 trk->vc1_info.packet_seq = 1;
3144 trk->vc1_info.packet_entry = 1;
3145 if (!trk->vc1_info.first_frag_written) {
3146 /* First fragment */
3147 if ((!seq || trk->vc1_info.first_packet_seq) &&
3148 (!entry || trk->vc1_info.first_packet_entry)) {
3149 /* First packet had the same headers as this one, readd the
3150 * sync sample flag. */
3151 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3152 trk->has_keyframes = 1;
3156 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3158 else if (trk->vc1_info.packet_seq)
3160 else if (trk->vc1_info.packet_entry)
3163 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3164 trk->has_keyframes++;
3168 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3170 MOVMuxContext *mov = s->priv_data;
3175 if (!track->mdat_buf)
3177 if (!mov->mdat_buf) {
3178 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3181 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3182 track->mdat_buf = NULL;
3184 offset = avio_tell(mov->mdat_buf);
3185 avio_write(mov->mdat_buf, buf, buf_size);
3188 for (i = track->entries_flushed; i < track->entry; i++)
3189 track->cluster[i].pos += offset;
3190 track->entries_flushed = track->entry;
3194 static int mov_flush_fragment(AVFormatContext *s, int force)
3196 MOVMuxContext *mov = s->priv_data;
3197 int i, first_track = -1;
3198 int64_t mdat_size = 0;
3199 int has_video = 0, starts_with_key = 0, first_video_track = 1;
3201 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3204 // Try to fill in the duration of the last packet in each stream
3205 // from queued packets in the interleave queues. If the flushing
3206 // of fragments was triggered automatically by an AVPacket, we
3207 // already have reliable info for the end of that track, but other
3208 // tracks may need to be filled in.
3209 for (i = 0; i < s->nb_streams; i++) {
3210 MOVTrack *track = &mov->tracks[i];
3211 if (!track->end_reliable) {
3212 const AVPacket *next = ff_interleaved_peek(s, i);
3214 track->track_duration = next->dts - track->start_dts;
3215 if (next->pts != AV_NOPTS_VALUE)
3216 track->end_pts = next->pts;
3218 track->end_pts = next->dts;
3223 for (i = 0; i < mov->nb_streams; i++) {
3224 MOVTrack *track = &mov->tracks[i];
3225 if (track->entry <= 1)
3227 // Sample durations are calculated as the diff of dts values,
3228 // but for the last sample in a fragment, we don't know the dts
3229 // of the first sample in the next fragment, so we have to rely
3230 // on what was set as duration in the AVPacket. Not all callers
3231 // set this though, so we might want to replace it with an
3232 // estimate if it currently is zero.
3233 if (get_cluster_duration(track, track->entry - 1) != 0)
3235 // Use the duration (i.e. dts diff) of the second last sample for
3236 // the last one. This is a wild guess (and fatal if it turns out
3237 // to be too long), but probably the best we can do - having a zero
3238 // duration is bad as well.
3239 track->track_duration += get_cluster_duration(track, track->entry - 2);
3240 track->end_pts += get_cluster_duration(track, track->entry - 2);
3241 if (!mov->missing_duration_warned) {
3242 av_log(s, AV_LOG_WARNING,
3243 "Estimating the duration of the last packet in a "
3244 "fragment, consider setting the duration field in "
3245 "AVPacket instead.\n");
3246 mov->missing_duration_warned = 1;
3250 if (!mov->moov_written) {
3251 int64_t pos = avio_tell(s->pb);
3253 AVIOContext *moov_buf;
3257 for (i = 0; i < mov->nb_streams; i++)
3258 if (!mov->tracks[i].entry)
3260 /* Don't write the initial moov unless all tracks have data */
3261 if (i < mov->nb_streams && !force)
3264 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3266 mov_write_moov_tag(moov_buf, mov, s);
3267 buf_size = ffio_close_null_buf(moov_buf);
3268 for (i = 0; i < mov->nb_streams; i++)
3269 mov->tracks[i].data_offset = pos + buf_size + 8;
3271 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
3272 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3273 mov_write_identification(s->pb, s);
3274 mov_write_moov_tag(s->pb, mov, s);
3276 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3277 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3278 mov->reserved_header_pos = avio_tell(s->pb);
3280 mov->moov_written = 1;
3284 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3285 mov->mdat_buf = NULL;
3286 avio_wb32(s->pb, buf_size + 8);
3287 ffio_wfourcc(s->pb, "mdat");
3288 avio_write(s->pb, buf, buf_size);
3291 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3292 mov->reserved_header_pos = avio_tell(s->pb);
3294 mov->moov_written = 1;
3296 for (i = 0; i < mov->nb_streams; i++) {
3297 if (mov->tracks[i].entry)
3298 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3299 mov->tracks[i].track_duration -
3300 mov->tracks[i].cluster[0].dts;
3301 mov->tracks[i].entry = 0;
3302 mov->tracks[i].end_reliable = 0;
3308 if (mov->frag_interleave) {
3309 for (i = 0; i < mov->nb_streams; i++) {
3310 MOVTrack *track = &mov->tracks[i];
3312 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3318 mdat_size = avio_tell(mov->mdat_buf);
3321 for (i = 0; i < mov->nb_streams; i++) {
3322 MOVTrack *track = &mov->tracks[i];
3323 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3324 track->data_offset = 0;
3326 track->data_offset = mdat_size;
3327 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3329 if (first_video_track) {
3331 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3332 first_video_track = 0;
3337 if (track->mdat_buf)
3338 mdat_size += avio_tell(track->mdat_buf);
3339 if (first_track < 0)
3346 avio_write_marker(s->pb,
3347 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
3348 (has_video ? starts_with_key : mov->tracks[first_track].cluster[0].flags & MOV_SYNC_SAMPLE) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
3350 for (i = 0; i < mov->nb_streams; i++) {
3351 MOVTrack *track = &mov->tracks[i];
3352 int buf_size, write_moof = 1, moof_tracks = -1;
3354 int64_t duration = 0;
3357 duration = track->start_dts + track->track_duration -
3358 track->cluster[0].dts;
3359 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3360 if (!track->mdat_buf)
3362 mdat_size = avio_tell(track->mdat_buf);
3365 write_moof = i == first_track;
3371 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3374 avio_wb32(s->pb, mdat_size + 8);
3375 ffio_wfourcc(s->pb, "mdat");
3379 track->frag_start += duration;
3381 track->entries_flushed = 0;
3382 track->end_reliable = 0;
3383 if (!mov->frag_interleave) {
3384 if (!track->mdat_buf)
3386 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3387 track->mdat_buf = NULL;
3391 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3392 mov->mdat_buf = NULL;
3395 avio_write(s->pb, buf, buf_size);
3405 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
3407 MOVMuxContext *mov = s->priv_data;
3408 int had_moov = mov->moov_written;
3409 int ret = mov_flush_fragment(s, force);
3412 // If using delay_moov, the first flush only wrote the moov,
3413 // not the actual moof+mdat pair, thus flush once again.
3414 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3415 ret = mov_flush_fragment(s, force);
3419 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3421 MOVMuxContext *mov = s->priv_data;
3422 AVIOContext *pb = s->pb;
3423 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3424 AVCodecParameters *par = trk->par;
3425 unsigned int samples_in_chunk = 0;
3426 int size = pkt->size, ret = 0;
3427 uint8_t *reformatted_data = NULL;
3429 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3431 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3432 if (mov->frag_interleave && mov->fragments > 0) {
3433 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3434 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3439 if (!trk->mdat_buf) {
3440 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3445 if (!mov->mdat_buf) {
3446 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3453 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
3454 /* We must find out how many AMR blocks there are in one packet */
3455 static uint16_t packed_size[16] =
3456 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3459 while (len < size && samples_in_chunk < 100) {
3460 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3463 if (samples_in_chunk > 1) {
3464 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3467 } else if (trk->sample_size)
3468 samples_in_chunk = size / trk->sample_size;
3470 samples_in_chunk = 1;
3472 /* copy extradata if it exists */
3473 if (trk->vos_len == 0 && par->extradata_size > 0) {
3474 trk->vos_len = par->extradata_size;
3475 trk->vos_data = av_malloc(trk->vos_len);
3476 if (!trk->vos_data) {
3477 ret = AVERROR(ENOMEM);
3480 memcpy(trk->vos_data, par->extradata, trk->vos_len);
3483 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3484 /* from x264 or from bytestream H.264 */
3485 /* NAL reformatting needed */
3486 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3487 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3489 avio_write(pb, reformatted_data, size);
3491 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3493 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3494 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3495 /* extradata is Annex B, assume the bitstream is too and convert it */
3496 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3497 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3498 avio_write(pb, reformatted_data, size);
3500 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3503 avio_write(pb, pkt->data, size);
3506 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
3507 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3508 /* copy frame to create needed atoms */
3509 trk->vos_len = size;
3510 trk->vos_data = av_malloc(size);
3511 if (!trk->vos_data) {
3512 ret = AVERROR(ENOMEM);
3515 memcpy(trk->vos_data, pkt->data, size);
3518 if (trk->entry >= trk->cluster_capacity) {
3519 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3520 if (av_reallocp_array(&trk->cluster, new_capacity,
3521 sizeof(*trk->cluster))) {
3522 ret = AVERROR(ENOMEM);
3525 trk->cluster_capacity = new_capacity;
3528 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3529 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3530 trk->cluster[trk->entry].size = size;
3531 trk->cluster[trk->entry].entries = samples_in_chunk;
3532 trk->cluster[trk->entry].dts = pkt->dts;
3533 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3534 if (!trk->frag_discont) {
3535 /* First packet of a new fragment. We already wrote the duration
3536 * of the last packet of the previous fragment based on track_duration,
3537 * which might not exactly match our dts. Therefore adjust the dts
3538 * of this packet to be what the previous packets duration implies. */
3539 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3540 /* We also may have written the pts and the corresponding duration
3541 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3542 * the next fragment. This means the cts of the first sample must
3543 * be the same in all fragments, unless end_pts was updated by
3544 * the packet causing the fragment to be written. */
3545 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
3546 mov->mode == MODE_ISM)
3547 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3549 /* New fragment, but discontinuous from previous fragments.
3550 * Pretend the duration sum of the earlier fragments is
3551 * pkt->dts - trk->start_dts. */
3552 trk->frag_start = pkt->dts - trk->start_dts;
3553 trk->end_pts = AV_NOPTS_VALUE;
3554 trk->frag_discont = 0;
3557 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3558 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3559 /* Not using edit lists and shifting the first track to start from zero.
3560 * If the other streams start from a later timestamp, we won't be able
3561 * to signal the difference in starting time without an edit list.
3562 * Thus move the timestamp for this first sample to 0, increasing
3563 * its duration instead. */
3564 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3566 if (trk->start_dts == AV_NOPTS_VALUE) {
3567 trk->start_dts = pkt->dts;
3568 if (trk->frag_discont) {
3569 if (mov->use_editlist) {
3570 /* Pretend the whole stream started at pts=0, with earlier fragments
3571 * already written. If the stream started at pts=0, the duration sum
3572 * of earlier fragments would have been pkt->pts. */
3573 trk->frag_start = pkt->pts;
3574 trk->start_dts = pkt->dts - pkt->pts;
3576 /* Pretend the whole stream started at dts=0, with earlier fragments
3577 * already written, with a duration summing up to pkt->dts. */
3578 trk->frag_start = pkt->dts;
3581 trk->frag_discont = 0;
3582 } else if (pkt->dts && mov->moov_written)
3583 av_log(s, AV_LOG_WARNING,
3584 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3585 "already has been written. Set the delay_moov flag to handle "
3587 pkt->stream_index, pkt->dts);
3589 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3591 if (pkt->pts == AV_NOPTS_VALUE) {
3592 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3593 pkt->pts = pkt->dts;
3595 if (pkt->dts != pkt->pts)
3596 trk->flags |= MOV_TRACK_CTTS;
3597 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3598 trk->cluster[trk->entry].flags = 0;
3599 if (trk->start_cts == AV_NOPTS_VALUE)
3600 trk->start_cts = pkt->pts - pkt->dts;
3601 if (trk->end_pts == AV_NOPTS_VALUE)
3602 trk->end_pts = trk->cluster[trk->entry].dts +
3603 trk->cluster[trk->entry].cts + pkt->duration;
3605 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3606 trk->cluster[trk->entry].cts +
3609 if (par->codec_id == AV_CODEC_ID_VC1) {
3610 mov_parse_vc1_frame(pkt, trk);
3611 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3612 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3613 trk->entry > 0) { // force sync sample for the first key frame
3614 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3615 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3616 trk->flags |= MOV_TRACK_STPS;
3618 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3620 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3621 trk->has_keyframes++;
3624 trk->sample_count += samples_in_chunk;
3625 mov->mdat_size += size;
3627 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3628 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3629 reformatted_data, size);
3632 av_free(reformatted_data);
3636 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3639 mov_flush_fragment(s, 1);
3642 MOVMuxContext *mov = s->priv_data;
3643 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3644 AVCodecParameters *par = trk->par;
3645 int64_t frag_duration = 0;
3646 int size = pkt->size;
3648 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3650 for (i = 0; i < s->nb_streams; i++)
3651 mov->tracks[i].frag_discont = 1;
3652 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3656 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
3657 trk->start_dts = pkt->dts;
3658 if (pkt->pts != AV_NOPTS_VALUE)
3659 trk->start_cts = pkt->pts - pkt->dts;
3664 return 0; /* Discard 0 sized packets */
3668 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3669 s->streams[pkt->stream_index]->time_base,
3671 if ((mov->max_fragment_duration &&
3672 frag_duration >= mov->max_fragment_duration) ||
3673 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3674 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3675 par->codec_type == AVMEDIA_TYPE_VIDEO &&
3676 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3677 if (frag_duration >= mov->min_fragment_duration) {
3678 // Set the duration of this track to line up with the next
3679 // sample in this track. This avoids relying on AVPacket
3680 // duration, but only helps for this particular track, not
3681 // for the other ones that are flushed at the same time.
3682 trk->track_duration = pkt->dts - trk->start_dts;
3683 if (pkt->pts != AV_NOPTS_VALUE)
3684 trk->end_pts = pkt->pts;
3686 trk->end_pts = pkt->dts;
3687 trk->end_reliable = 1;
3688 mov_auto_flush_fragment(s, 0);
3692 return ff_mov_write_packet(s, pkt);
3696 // QuickTime chapters involve an additional text track with the chapter names
3697 // as samples, and a tref pointing from the other tracks to the chapter one.
3698 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3700 MOVMuxContext *mov = s->priv_data;
3701 MOVTrack *track = &mov->tracks[tracknum];
3702 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3704 // These properties are required to make QT recognize the chapter track
3705 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3707 track->mode = mov->mode;
3708 track->tag = MKTAG('t','e','x','t');
3709 track->timescale = MOV_TIMESCALE;
3710 track->par = avcodec_parameters_alloc();
3712 return AVERROR(ENOMEM);
3713 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
3714 track->par->extradata = av_malloc(sizeof(chapter_properties));
3715 if (!track->par->extradata)
3716 return AVERROR(ENOMEM);
3717 track->par->extradata_size = sizeof(chapter_properties);
3718 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
3720 for (i = 0; i < s->nb_chapters; i++) {
3721 AVChapter *c = s->chapters[i];
3722 AVDictionaryEntry *t;
3724 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3725 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3726 pkt.duration = end - pkt.dts;
3728 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3729 static const char encd[12] = {
3730 0x00, 0x00, 0x00, 0x0C,
3732 0x00, 0x00, 0x01, 0x00 };
3733 len = strlen(t->value);
3734 pkt.size = len + 2 + 12;
3735 pkt.data = av_malloc(pkt.size);
3737 return AVERROR(ENOMEM);
3738 AV_WB16(pkt.data, len);
3739 memcpy(pkt.data + 2, t->value, len);
3740 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3741 ff_mov_write_packet(s, &pkt);
3742 av_freep(&pkt.data);
3750 * st->disposition controls the "enabled" flag in the tkhd tag.
3751 * QuickTime will not play a track if it is not enabled. So make sure
3752 * that one track of each type (audio, video, subtitle) is enabled.
3754 * Subtitles are special. For audio and video, setting "enabled" also
3755 * makes the track "default" (i.e. it is rendered when played). For
3756 * subtitles, an "enabled" subtitle is not rendered by default, but
3757 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3760 static void enable_tracks(AVFormatContext *s)
3762 MOVMuxContext *mov = s->priv_data;
3764 int enabled[AVMEDIA_TYPE_NB];
3765 int first[AVMEDIA_TYPE_NB];
3767 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3772 for (i = 0; i < s->nb_streams; i++) {
3773 AVStream *st = s->streams[i];
3775 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3776 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
3779 if (first[st->codecpar->codec_type] < 0)
3780 first[st->codecpar->codec_type] = i;
3781 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3782 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3783 enabled[st->codecpar->codec_type]++;
3787 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3789 case AVMEDIA_TYPE_VIDEO:
3790 case AVMEDIA_TYPE_AUDIO:
3791 case AVMEDIA_TYPE_SUBTITLE:
3793 mov->per_stream_grouping = 1;
3794 if (!enabled[i] && first[i] >= 0)
3795 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3801 static void mov_free(AVFormatContext *s)
3803 MOVMuxContext *mov = s->priv_data;
3806 if (mov->chapter_track)
3807 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
3809 for (i = 0; i < mov->nb_streams; i++) {
3810 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3811 ff_mov_close_hinting(&mov->tracks[i]);
3812 av_freep(&mov->tracks[i].cluster);
3813 av_freep(&mov->tracks[i].frag_info);
3815 if (mov->tracks[i].vos_len)
3816 av_free(mov->tracks[i].vos_data);
3819 av_freep(&mov->tracks);
3822 static uint32_t rgb_to_yuv(uint32_t rgb)
3827 r = (rgb >> 16) & 0xFF;
3828 g = (rgb >> 8) & 0xFF;
3831 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3832 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3833 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3835 return (y << 16) | (cr << 8) | cb;
3838 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3841 int i, width = 720, height = 480;
3842 int have_palette = 0, have_size = 0;
3843 uint32_t palette[16];
3844 char *cur = st->codecpar->extradata;
3846 while (cur && *cur) {
3847 if (strncmp("palette:", cur, 8) == 0) {
3849 count = sscanf(cur + 8,
3850 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3851 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3852 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3853 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3854 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3855 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3856 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3857 &palette[12], &palette[13], &palette[14], &palette[15]);
3859 for (i = 0; i < count; i++) {
3860 palette[i] = rgb_to_yuv(palette[i]);
3863 } else if (!strncmp("size:", cur, 5)) {
3864 sscanf(cur + 5, "%dx%d", &width, &height);
3867 if (have_palette && have_size)
3869 cur += strcspn(cur, "\n\r");
3870 cur += strspn(cur, "\n\r");
3873 track->vos_data = av_malloc(16*4);
3874 if (!track->vos_data)
3875 return AVERROR(ENOMEM);
3876 for (i = 0; i < 16; i++) {
3877 AV_WB32(track->vos_data + i * 4, palette[i]);
3879 track->vos_len = 16 * 4;
3881 st->codecpar->width = width;
3882 st->codecpar->height = track->height = height;
3887 static int mov_write_header(AVFormatContext *s)
3889 AVIOContext *pb = s->pb;
3890 MOVMuxContext *mov = s->priv_data;
3891 AVDictionaryEntry *t;
3892 int i, ret, hint_track = 0;
3896 /* Default mode == MP4 */
3897 mov->mode = MODE_MP4;
3900 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3901 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3902 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3903 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3904 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3905 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3906 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3909 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3910 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3912 /* Set the FRAGMENT flag if any of the fragmentation methods are
3914 if (mov->max_fragment_duration || mov->max_fragment_size ||
3915 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3916 FF_MOV_FLAG_FRAG_KEYFRAME |
3917 FF_MOV_FLAG_FRAG_CUSTOM))
3918 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3920 /* Set other implicit flags immediately */
3921 if (mov->mode == MODE_ISM)
3922 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3923 FF_MOV_FLAG_FRAGMENT;
3924 if (mov->flags & FF_MOV_FLAG_DASH)
3925 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
3926 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
3928 if (mov->use_editlist < 0) {
3929 mov->use_editlist = 1;
3930 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3931 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3932 // If we can avoid needing an edit list by shifting the
3933 // tracks, prefer that over (trying to) write edit lists
3934 // in fragmented output.
3935 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3936 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3937 mov->use_editlist = 0;
3940 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
3941 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
3942 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
3944 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3945 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3947 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
3948 * if the latter is set that's enough and omit_tfhd_offset doesn't
3949 * add anything extra on top of that. */
3950 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3951 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3952 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
3954 if (mov->frag_interleave &&
3955 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
3956 av_log(s, AV_LOG_ERROR,
3957 "Sample interleaving in fragments is mutually exclusive with "
3958 "omit_tfhd_offset and separate_moof\n");
3959 return AVERROR(EINVAL);
3962 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3963 * is enabled, we don't support non-seekable output at all. */
3964 if (!s->pb->seekable &&
3965 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3966 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3967 return AVERROR(EINVAL);
3971 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3972 if ((ret = mov_write_identification(pb, s)) < 0)
3976 mov->nb_streams = s->nb_streams;
3977 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3978 mov->chapter_track = mov->nb_streams++;
3980 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3981 /* Add hint tracks for each audio and video stream */
3982 hint_track = mov->nb_streams;
3983 for (i = 0; i < s->nb_streams; i++) {
3984 AVStream *st = s->streams[i];
3985 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
3986 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3992 // Reserve an extra stream for chapters for the case where chapters
3993 // are written in the trailer
3994 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3996 return AVERROR(ENOMEM);
3998 for (i = 0; i < s->nb_streams; i++) {
3999 AVStream *st= s->streams[i];
4000 MOVTrack *track= &mov->tracks[i];
4001 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4004 track->par = st->codecpar;
4005 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4006 if (track->language < 0)
4007 track->language = 0;
4008 track->mode = mov->mode;
4009 track->tag = mov_find_codec_tag(s, track);
4011 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
4012 "codec not currently supported in container\n", i);
4015 /* If hinting of this track is enabled by a later hint track,
4016 * this is updated. */
4017 track->hint_track = -1;
4018 track->start_dts = AV_NOPTS_VALUE;
4019 track->start_cts = AV_NOPTS_VALUE;
4020 track->end_pts = AV_NOPTS_VALUE;
4021 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
4022 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4023 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4024 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4025 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
4026 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4029 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4031 track->timescale = st->time_base.den;
4032 if (track->mode == MODE_MOV && track->timescale > 100000)
4033 av_log(s, AV_LOG_WARNING,
4034 "WARNING codec timebase is very high. If duration is too long,\n"
4035 "file may not be playable by quicktime. Specify a shorter timebase\n"
4036 "or choose different container.\n");
4037 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4038 track->timescale = st->codecpar->sample_rate;
4039 /* set sample_size for PCM and ADPCM */
4040 if (av_get_bits_per_sample(st->codecpar->codec_id) ||
4041 st->codecpar->codec_id == AV_CODEC_ID_ILBC) {
4042 if (!st->codecpar->block_align) {
4043 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
4046 track->sample_size = st->codecpar->block_align;
4048 /* set audio_vbr for compressed audio */
4049 if (av_get_bits_per_sample(st->codecpar->codec_id) < 8) {
4050 track->audio_vbr = 1;
4052 if (track->mode != MODE_MOV &&
4053 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4054 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4055 i, track->par->sample_rate);
4058 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4059 track->timescale = st->time_base.den;
4060 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
4061 track->timescale = st->time_base.den;
4064 track->height = st->codecpar->height;
4065 /* The ism specific timescale isn't mandatory, but is assumed by
4066 * some tools, such as mp4split. */
4067 if (mov->mode == MODE_ISM)
4068 track->timescale = 10000000;
4070 avpriv_set_pts_info(st, 64, 1, track->timescale);
4072 /* copy extradata if it exists */
4073 if (st->codecpar->extradata_size) {
4074 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4075 mov_create_dvd_sub_decoder_specific_info(track, st);
4077 track->vos_len = st->codecpar->extradata_size;
4078 track->vos_data = av_malloc(track->vos_len);
4079 if (!track->vos_data)
4081 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
4088 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4089 /* If no fragmentation options have been set, set a default. */
4090 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4091 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4092 !mov->max_fragment_duration && !mov->max_fragment_size)
4093 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4095 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4096 mov->reserved_header_pos = avio_tell(pb);
4097 mov_write_mdat_tag(pb, mov);
4100 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4101 mov->time = ff_iso8601_to_unix_time(t->value);
4103 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4105 if (mov->chapter_track)
4106 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4109 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4110 /* Initialize the hint tracks for each audio and video stream */
4111 for (i = 0; i < s->nb_streams; i++) {
4112 AVStream *st = s->streams[i];
4113 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4114 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4115 ff_mov_init_hinting(s, hint_track, i);
4123 if (mov->flags & FF_MOV_FLAG_ISML)
4124 mov_write_isml_manifest(pb, mov);
4126 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4127 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4128 mov_write_moov_tag(pb, mov, s);
4130 mov->moov_written = 1;
4131 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4132 mov->reserved_header_pos = avio_tell(pb);
4141 static int get_moov_size(AVFormatContext *s)
4144 AVIOContext *moov_buf;
4145 MOVMuxContext *mov = s->priv_data;
4147 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4149 mov_write_moov_tag(moov_buf, mov, s);
4150 return ffio_close_null_buf(moov_buf);
4153 static int get_sidx_size(AVFormatContext *s)
4157 MOVMuxContext *mov = s->priv_data;
4159 if ((ret = ffio_open_null_buf(&buf)) < 0)
4161 mov_write_sidx_tags(buf, mov, -1, 0);
4162 return ffio_close_null_buf(buf);
4166 * This function gets the moov size if moved to the top of the file: the chunk
4167 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4168 * entries) when the moov is moved to the beginning, so the size of the moov
4169 * would change. It also updates the chunk offset tables.
4171 static int compute_moov_size(AVFormatContext *s)
4173 int i, moov_size, moov_size2;
4174 MOVMuxContext *mov = s->priv_data;
4176 moov_size = get_moov_size(s);
4180 for (i = 0; i < mov->nb_streams; i++)
4181 mov->tracks[i].data_offset += moov_size;
4183 moov_size2 = get_moov_size(s);
4187 /* if the size changed, we just switched from stco to co64 and need to
4188 * update the offsets */
4189 if (moov_size2 != moov_size)
4190 for (i = 0; i < mov->nb_streams; i++)
4191 mov->tracks[i].data_offset += moov_size2 - moov_size;
4196 static int compute_sidx_size(AVFormatContext *s)
4199 MOVMuxContext *mov = s->priv_data;
4201 sidx_size = get_sidx_size(s);
4205 for (i = 0; i < mov->nb_streams; i++)
4206 mov->tracks[i].data_offset += sidx_size;
4211 static int shift_data(AVFormatContext *s)
4213 int ret = 0, moov_size;
4214 MOVMuxContext *mov = s->priv_data;
4215 int64_t pos, pos_end = avio_tell(s->pb);
4216 uint8_t *buf, *read_buf[2];
4217 int read_buf_id = 0;
4219 AVIOContext *read_pb;
4221 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4222 moov_size = compute_sidx_size(s);
4224 moov_size = compute_moov_size(s);
4228 buf = av_malloc(moov_size * 2);
4230 return AVERROR(ENOMEM);
4232 read_buf[1] = buf + moov_size;
4234 /* Shift the data: the AVIO context of the output can only be used for
4235 * writing, so we re-open the same output, but for reading. It also avoids
4236 * a read/seek/write/seek back and forth. */
4238 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
4240 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4241 "the second pass (faststart)\n", s->filename);
4245 /* mark the end of the shift to up to the last data we wrote, and get ready
4247 pos_end = avio_tell(s->pb);
4248 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4250 /* start reading at where the new moov will be placed */
4251 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4252 pos = avio_tell(read_pb);
4254 #define READ_BLOCK do { \
4255 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4259 /* shift data by chunk of at most moov_size */
4264 n = read_size[read_buf_id];
4267 avio_write(s->pb, read_buf[read_buf_id], n);
4269 } while (pos < pos_end);
4270 ff_format_io_close(s, &read_pb);
4277 static int mov_write_trailer(AVFormatContext *s)
4279 MOVMuxContext *mov = s->priv_data;
4280 AVIOContext *pb = s->pb;
4285 // If there were no chapters when the header was written, but there
4286 // are chapters now, write them in the trailer. This only works
4287 // when we are not doing fragments.
4288 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4289 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4290 mov->chapter_track = mov->nb_streams++;
4291 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4296 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4297 moov_pos = avio_tell(pb);
4299 /* Write size of mdat tag */
4300 if (mov->mdat_size + 8 <= UINT32_MAX) {
4301 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4302 avio_wb32(pb, mov->mdat_size + 8);
4304 /* overwrite 'wide' placeholder atom */
4305 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4306 /* special value: real atom size will be 64 bit value after
4309 ffio_wfourcc(pb, "mdat");
4310 avio_wb64(pb, mov->mdat_size + 16);
4312 avio_seek(pb, moov_pos, SEEK_SET);
4314 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4315 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4316 res = shift_data(s);
4318 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4319 mov_write_moov_tag(pb, mov, s);
4322 mov_write_moov_tag(pb, mov, s);
4325 mov_auto_flush_fragment(s, 1);
4326 for (i = 0; i < mov->nb_streams; i++)
4327 mov->tracks[i].data_offset = 0;
4328 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
4329 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4330 res = shift_data(s);
4332 int64_t end = avio_tell(pb);
4333 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4334 mov_write_sidx_tags(pb, mov, -1, 0);
4335 avio_seek(pb, end, SEEK_SET);
4336 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4337 mov_write_mfra_tag(pb, mov);
4340 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4341 mov_write_mfra_tag(pb, mov);
4351 #if CONFIG_MOV_MUXER
4353 AVOutputFormat ff_mov_muxer = {
4355 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4356 .extensions = "mov",
4357 .priv_data_size = sizeof(MOVMuxContext),
4358 .audio_codec = AV_CODEC_ID_AAC,
4359 .video_codec = CONFIG_LIBX264_ENCODER ?
4360 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4361 .write_header = mov_write_header,
4362 .write_packet = mov_write_packet,
4363 .write_trailer = mov_write_trailer,
4364 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4365 .codec_tag = (const AVCodecTag* const []){
4366 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4368 .priv_class = &mov_muxer_class,
4371 #if CONFIG_TGP_MUXER
4373 AVOutputFormat ff_tgp_muxer = {
4375 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4376 .extensions = "3gp",
4377 .priv_data_size = sizeof(MOVMuxContext),
4378 .audio_codec = AV_CODEC_ID_AMR_NB,
4379 .video_codec = AV_CODEC_ID_H263,
4380 .write_header = mov_write_header,
4381 .write_packet = mov_write_packet,
4382 .write_trailer = mov_write_trailer,
4383 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4384 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4385 .priv_class = &tgp_muxer_class,
4388 #if CONFIG_MP4_MUXER
4390 AVOutputFormat ff_mp4_muxer = {
4392 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4393 .mime_type = "application/mp4",
4394 .extensions = "mp4",
4395 .priv_data_size = sizeof(MOVMuxContext),
4396 .audio_codec = AV_CODEC_ID_AAC,
4397 .video_codec = CONFIG_LIBX264_ENCODER ?
4398 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4399 .write_header = mov_write_header,
4400 .write_packet = mov_write_packet,
4401 .write_trailer = mov_write_trailer,
4402 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4403 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4404 .priv_class = &mp4_muxer_class,
4407 #if CONFIG_PSP_MUXER
4409 AVOutputFormat ff_psp_muxer = {
4411 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4412 .extensions = "mp4,psp",
4413 .priv_data_size = sizeof(MOVMuxContext),
4414 .audio_codec = AV_CODEC_ID_AAC,
4415 .video_codec = CONFIG_LIBX264_ENCODER ?
4416 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4417 .write_header = mov_write_header,
4418 .write_packet = mov_write_packet,
4419 .write_trailer = mov_write_trailer,
4420 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4421 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4422 .priv_class = &psp_muxer_class,
4425 #if CONFIG_TG2_MUXER
4427 AVOutputFormat ff_tg2_muxer = {
4429 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4430 .extensions = "3g2",
4431 .priv_data_size = sizeof(MOVMuxContext),
4432 .audio_codec = AV_CODEC_ID_AMR_NB,
4433 .video_codec = AV_CODEC_ID_H263,
4434 .write_header = mov_write_header,
4435 .write_packet = mov_write_packet,
4436 .write_trailer = mov_write_trailer,
4437 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4438 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4439 .priv_class = &tg2_muxer_class,
4442 #if CONFIG_IPOD_MUXER
4444 AVOutputFormat ff_ipod_muxer = {
4446 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4447 .mime_type = "application/mp4",
4448 .extensions = "m4v,m4a",
4449 .priv_data_size = sizeof(MOVMuxContext),
4450 .audio_codec = AV_CODEC_ID_AAC,
4451 .video_codec = AV_CODEC_ID_H264,
4452 .write_header = mov_write_header,
4453 .write_packet = mov_write_packet,
4454 .write_trailer = mov_write_trailer,
4455 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4456 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4457 .priv_class = &ipod_muxer_class,
4460 #if CONFIG_ISMV_MUXER
4462 AVOutputFormat ff_ismv_muxer = {
4464 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4465 .mime_type = "application/mp4",
4466 .extensions = "ismv,isma",
4467 .priv_data_size = sizeof(MOVMuxContext),
4468 .audio_codec = AV_CODEC_ID_AAC,
4469 .video_codec = AV_CODEC_ID_H264,
4470 .write_header = mov_write_header,
4471 .write_packet = mov_write_packet,
4472 .write_trailer = mov_write_trailer,
4473 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4474 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4475 .priv_class = &ismv_muxer_class,
4478 #if CONFIG_F4V_MUXER
4480 AVOutputFormat ff_f4v_muxer = {
4482 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4483 .mime_type = "application/f4v",
4484 .extensions = "f4v",
4485 .priv_data_size = sizeof(MOVMuxContext),
4486 .audio_codec = AV_CODEC_ID_AAC,
4487 .video_codec = AV_CODEC_ID_H264,
4488 .write_header = mov_write_header,
4489 .write_packet = mov_write_packet,
4490 .write_trailer = mov_write_trailer,
4491 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4492 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4493 .priv_class = &f4v_muxer_class,