3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/dict.h"
50 static const AVOption options[] = {
51 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64 { "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" },
65 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
66 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
67 { "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},
68 { "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},
69 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "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},
71 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72 { "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},
73 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
74 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
75 { "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},
76 { "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 },
80 #define MOV_CLASS(flavor)\
81 static const AVClass flavor ## _muxer_class = {\
82 .class_name = #flavor " muxer",\
83 .item_name = av_default_item_name,\
85 .version = LIBAVUTIL_VERSION_INT,\
88 static int utf8len(const uint8_t *b)
93 GET_UTF8(val, *b++, return -1;)
99 //FIXME support 64 bit variant with wide placeholders
100 static int64_t update_size(AVIOContext *pb, int64_t pos)
102 int64_t curpos = avio_tell(pb);
103 avio_seek(pb, pos, SEEK_SET);
104 avio_wb32(pb, curpos - pos); /* rewrite size */
105 avio_seek(pb, curpos, SEEK_SET);
110 static int co64_required(const MOVTrack *track)
112 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
117 /* Chunk offset atom */
118 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
121 int mode64 = co64_required(track); // use 32 bit size variant if possible
122 int64_t pos = avio_tell(pb);
123 avio_wb32(pb, 0); /* size */
125 ffio_wfourcc(pb, "co64");
127 ffio_wfourcc(pb, "stco");
128 avio_wb32(pb, 0); /* version & flags */
129 avio_wb32(pb, track->entry); /* entry count */
130 for (i = 0; i < track->entry; i++) {
132 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
134 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
136 return update_size(pb, pos);
139 /* Sample size atom */
140 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
143 int i, j, entries = 0, tst = -1, oldtst = -1;
145 int64_t pos = avio_tell(pb);
146 avio_wb32(pb, 0); /* size */
147 ffio_wfourcc(pb, "stsz");
148 avio_wb32(pb, 0); /* version & flags */
150 for (i = 0; i < track->entry; i++) {
151 tst = track->cluster[i].size / track->cluster[i].entries;
152 if (oldtst != -1 && tst != oldtst)
155 entries += track->cluster[i].entries;
157 if (equalChunks && track->entry) {
158 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
159 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
160 avio_wb32(pb, sSize); // sample size
161 avio_wb32(pb, entries); // sample count
163 avio_wb32(pb, 0); // sample size
164 avio_wb32(pb, entries); // sample count
165 for (i = 0; i < track->entry; i++) {
166 for (j = 0; j < track->cluster[i].entries; j++) {
167 avio_wb32(pb, track->cluster[i].size /
168 track->cluster[i].entries);
172 return update_size(pb, pos);
175 /* Sample to chunk atom */
176 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
178 int index = 0, oldval = -1, i;
179 int64_t entryPos, curpos;
181 int64_t pos = avio_tell(pb);
182 avio_wb32(pb, 0); /* size */
183 ffio_wfourcc(pb, "stsc");
184 avio_wb32(pb, 0); // version & flags
185 entryPos = avio_tell(pb);
186 avio_wb32(pb, track->entry); // entry count
187 for (i = 0; i < track->entry; i++) {
188 if (oldval != track->cluster[i].samples_in_chunk) {
189 avio_wb32(pb, i + 1); // first chunk
190 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
191 avio_wb32(pb, 0x1); // sample description index
192 oldval = track->cluster[i].samples_in_chunk;
196 curpos = avio_tell(pb);
197 avio_seek(pb, entryPos, SEEK_SET);
198 avio_wb32(pb, index); // rewrite size
199 avio_seek(pb, curpos, SEEK_SET);
201 return update_size(pb, pos);
204 /* Sync sample atom */
205 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
207 int64_t curpos, entryPos;
209 int64_t pos = avio_tell(pb);
210 avio_wb32(pb, 0); // size
211 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
212 avio_wb32(pb, 0); // version & flags
213 entryPos = avio_tell(pb);
214 avio_wb32(pb, track->entry); // entry count
215 for (i = 0; i < track->entry; i++) {
216 if (track->cluster[i].flags & flag) {
217 avio_wb32(pb, i + 1);
221 curpos = avio_tell(pb);
222 avio_seek(pb, entryPos, SEEK_SET);
223 avio_wb32(pb, index); // rewrite size
224 avio_seek(pb, curpos, SEEK_SET);
225 return update_size(pb, pos);
228 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
230 avio_wb32(pb, 0x11); /* size */
231 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
232 else ffio_wfourcc(pb, "damr");
233 ffio_wfourcc(pb, "FFMP");
234 avio_w8(pb, 0); /* decoder version */
236 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
237 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
238 avio_w8(pb, 0x01); /* Frames per sample */
242 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
247 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
249 if (track->vos_len < 7)
253 ffio_wfourcc(pb, "dac3");
255 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
256 fscod = get_bits(&gbc, 2);
257 frmsizecod = get_bits(&gbc, 6);
258 bsid = get_bits(&gbc, 5);
259 bsmod = get_bits(&gbc, 3);
260 acmod = get_bits(&gbc, 3);
262 skip_bits(&gbc, 2); // dsurmod
264 if ((acmod & 1) && acmod != 1)
265 skip_bits(&gbc, 2); // cmixlev
267 skip_bits(&gbc, 2); // surmixlev
269 lfeon = get_bits1(&gbc);
271 init_put_bits(&pbc, buf, sizeof(buf));
272 put_bits(&pbc, 2, fscod);
273 put_bits(&pbc, 5, bsid);
274 put_bits(&pbc, 3, bsmod);
275 put_bits(&pbc, 3, acmod);
276 put_bits(&pbc, 1, lfeon);
277 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
278 put_bits(&pbc, 5, 0); // reserved
280 flush_put_bits(&pbc);
281 avio_write(pb, buf, sizeof(buf));
287 * This function writes extradata "as is".
288 * Extradata must be formatted like a valid atom (with size and tag).
290 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
292 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
293 return track->enc->extradata_size;
296 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
301 avio_w8(pb, (size >> (7 * i)) | 0x80);
302 avio_w8(pb, size & 0x7F);
305 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
307 int64_t pos = avio_tell(pb);
308 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
310 avio_wb32(pb, 0); // size
311 ffio_wfourcc(pb, "esds");
312 avio_wb32(pb, 0); // Version
315 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
316 avio_wb16(pb, track->track_id);
317 avio_w8(pb, 0x00); // flags (= no flags)
319 // DecoderConfig descriptor
320 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
322 // Object type indication
323 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
324 track->enc->codec_id == AV_CODEC_ID_MP3) &&
325 track->enc->sample_rate > 24000)
326 avio_w8(pb, 0x6B); // 11172-3
328 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
330 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
331 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
332 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
333 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
334 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
335 avio_w8(pb, 0x15); // flags (= Audiostream)
337 avio_w8(pb, 0x11); // flags (= Visualstream)
339 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
341 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
342 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
343 track->enc->rc_min_rate == 0)
344 avio_wb32(pb, 0); // vbr
346 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
348 if (track->vos_len) {
349 // DecoderSpecific info descriptor
350 put_descr(pb, 0x05, track->vos_len);
351 avio_write(pb, track->vos_data, track->vos_len);
355 put_descr(pb, 0x06, 1);
357 return update_size(pb, pos);
360 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
362 int64_t pos = avio_tell(pb);
364 avio_wl32(pb, track->tag); // store it byteswapped
365 track->enc->codec_tag = av_bswap16(track->tag >> 16);
366 ff_put_wav_header(pb, track->enc);
367 return update_size(pb, pos);
370 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
372 int64_t pos = avio_tell(pb);
374 ffio_wfourcc(pb, "wfex");
375 ff_put_wav_header(pb, track->enc);
376 return update_size(pb, pos);
379 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
381 uint32_t layout_tag, bitmap;
382 int64_t pos = avio_tell(pb);
384 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
385 track->enc->channel_layout,
388 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
389 "lack of channel information\n");
393 avio_wb32(pb, 0); // Size
394 ffio_wfourcc(pb, "chan"); // Type
395 avio_w8(pb, 0); // Version
396 avio_wb24(pb, 0); // Flags
397 avio_wb32(pb, layout_tag); // mChannelLayoutTag
398 avio_wb32(pb, bitmap); // mChannelBitmap
399 avio_wb32(pb, 0); // mNumberChannelDescriptions
401 return update_size(pb, pos);
404 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
406 int64_t pos = avio_tell(pb);
408 avio_wb32(pb, 0); /* size */
409 ffio_wfourcc(pb, "wave");
411 avio_wb32(pb, 12); /* size */
412 ffio_wfourcc(pb, "frma");
413 avio_wl32(pb, track->tag);
415 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
416 /* useless atom needed by mplayer, ipod, not needed by quicktime */
417 avio_wb32(pb, 12); /* size */
418 ffio_wfourcc(pb, "mp4a");
420 mov_write_esds_tag(pb, track);
421 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
422 mov_write_amr_tag(pb, track);
423 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
424 mov_write_ac3_tag(pb, track);
425 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
426 mov_write_extradata_tag(pb, track);
427 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
428 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
429 mov_write_ms_tag(pb, track);
432 avio_wb32(pb, 8); /* size */
433 avio_wb32(pb, 0); /* null tag */
435 return update_size(pb, pos);
438 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
441 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
442 int unescaped_size, seq_found = 0;
443 int level = 0, interlace = 0;
444 int packet_seq = track->vc1_info.packet_seq;
445 int packet_entry = track->vc1_info.packet_entry;
446 int slices = track->vc1_info.slices;
449 if (track->start_dts == AV_NOPTS_VALUE) {
450 /* No packets written yet, vc1_info isn't authoritative yet. */
451 /* Assume inline sequence and entry headers. */
452 packet_seq = packet_entry = 1;
453 av_log(NULL, AV_LOG_WARNING,
454 "moov atom written before any packets, unable to write correct "
455 "dvc1 atom. Set the delay_moov flag to fix this.\n");
458 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
460 return AVERROR(ENOMEM);
461 start = find_next_marker(track->vos_data, end);
462 for (next = start; next < end; start = next) {
465 next = find_next_marker(start + 4, end);
466 size = next - start - 4;
469 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
470 init_get_bits(&gb, unescaped, 8 * unescaped_size);
471 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
472 int profile = get_bits(&gb, 2);
473 if (profile != PROFILE_ADVANCED) {
475 return AVERROR(ENOSYS);
478 level = get_bits(&gb, 3);
479 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
481 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
482 skip_bits(&gb, 1); /* broadcast */
483 interlace = get_bits1(&gb);
484 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
489 return AVERROR(ENOSYS);
492 init_put_bits(&pbc, buf, 7);
493 /* VC1DecSpecStruc */
494 put_bits(&pbc, 4, 12); /* profile - advanced */
495 put_bits(&pbc, 3, level);
496 put_bits(&pbc, 1, 0); /* reserved */
497 /* VC1AdvDecSpecStruc */
498 put_bits(&pbc, 3, level);
499 put_bits(&pbc, 1, 0); /* cbr */
500 put_bits(&pbc, 6, 0); /* reserved */
501 put_bits(&pbc, 1, !interlace); /* no interlace */
502 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
503 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
504 put_bits(&pbc, 1, !slices); /* no slice code */
505 put_bits(&pbc, 1, 0); /* no bframe */
506 put_bits(&pbc, 1, 0); /* reserved */
509 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
510 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
512 put_bits32(&pbc, 0xffffffff);
514 flush_put_bits(&pbc);
521 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
523 uint8_t buf[7] = { 0 };
526 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
529 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
530 ffio_wfourcc(pb, "dvc1");
531 avio_write(pb, buf, sizeof(buf));
532 avio_write(pb, track->vos_data, track->vos_len);
537 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
539 avio_wb32(pb, track->vos_len + 8);
540 ffio_wfourcc(pb, "glbl");
541 avio_write(pb, track->vos_data, track->vos_len);
542 return 8 + track->vos_len;
546 * Compute flags for 'lpcm' tag.
547 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
549 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
552 case AV_CODEC_ID_PCM_F32BE:
553 case AV_CODEC_ID_PCM_F64BE:
555 case AV_CODEC_ID_PCM_F32LE:
556 case AV_CODEC_ID_PCM_F64LE:
558 case AV_CODEC_ID_PCM_U8:
560 case AV_CODEC_ID_PCM_S16BE:
561 case AV_CODEC_ID_PCM_S24BE:
562 case AV_CODEC_ID_PCM_S32BE:
564 case AV_CODEC_ID_PCM_S8:
565 case AV_CODEC_ID_PCM_S16LE:
566 case AV_CODEC_ID_PCM_S24LE:
567 case AV_CODEC_ID_PCM_S32LE:
574 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
578 if (cluster_idx >= track->entry)
581 if (cluster_idx + 1 == track->entry)
582 next_dts = track->track_duration + track->start_dts;
584 next_dts = track->cluster[cluster_idx + 1].dts;
586 return next_dts - track->cluster[cluster_idx].dts;
589 static int get_samples_per_packet(MOVTrack *track)
591 int i, first_duration;
593 /* use 1 for raw PCM */
594 if (!track->audio_vbr)
597 /* check to see if duration is constant for all clusters */
600 first_duration = get_cluster_duration(track, 0);
601 for (i = 1; i < track->entry; i++) {
602 if (get_cluster_duration(track, i) != first_duration)
605 return first_duration;
608 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
610 int64_t pos = avio_tell(pb);
612 uint32_t tag = track->tag;
614 if (track->mode == MODE_MOV) {
615 if (mov_get_lpcm_flags(track->enc->codec_id))
616 tag = AV_RL32("lpcm");
620 avio_wb32(pb, 0); /* size */
621 avio_wl32(pb, tag); // store it byteswapped
622 avio_wb32(pb, 0); /* Reserved */
623 avio_wb16(pb, 0); /* Reserved */
624 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
626 /* SoundDescription */
627 avio_wb16(pb, version); /* Version */
628 avio_wb16(pb, 0); /* Revision level */
629 avio_wb32(pb, 0); /* Reserved */
634 avio_wb16(pb, 0xfffe);
636 avio_wb32(pb, 0x00010000);
638 avio_wb64(pb, av_double2int(track->enc->sample_rate));
639 avio_wb32(pb, track->enc->channels);
640 avio_wb32(pb, 0x7F000000);
641 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
642 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
643 avio_wb32(pb, track->sample_size);
644 avio_wb32(pb, get_samples_per_packet(track));
646 /* reserved for mp4/3gp */
651 avio_wb16(pb, 0); /* packet size (= 0) */
652 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
653 track->enc->sample_rate : 0);
654 avio_wb16(pb, 0); /* Reserved */
657 if (track->mode == MODE_MOV &&
658 (track->enc->codec_id == AV_CODEC_ID_AAC ||
659 track->enc->codec_id == AV_CODEC_ID_AC3 ||
660 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
661 track->enc->codec_id == AV_CODEC_ID_ALAC ||
662 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
663 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
664 mov_write_wave_tag(pb, track);
665 else if (track->tag == MKTAG('m','p','4','a'))
666 mov_write_esds_tag(pb, track);
667 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
668 mov_write_amr_tag(pb, track);
669 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
670 mov_write_ac3_tag(pb, track);
671 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
672 mov_write_extradata_tag(pb, track);
673 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
674 mov_write_wfex_tag(pb, track);
675 else if (track->vos_len > 0)
676 mov_write_glbl_tag(pb, track);
678 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
679 mov_write_chan_tag(pb, track);
681 return update_size(pb, pos);
684 static int mov_write_d263_tag(AVIOContext *pb)
686 avio_wb32(pb, 0xf); /* size */
687 ffio_wfourcc(pb, "d263");
688 ffio_wfourcc(pb, "FFMP");
689 avio_w8(pb, 0); /* decoder version */
690 /* FIXME use AVCodecContext level/profile, when encoder will set values */
691 avio_w8(pb, 0xa); /* level */
692 avio_w8(pb, 0); /* profile */
696 /* TODO: No idea about these values */
697 static int mov_write_svq3_tag(AVIOContext *pb)
700 ffio_wfourcc(pb, "SMI ");
701 ffio_wfourcc(pb, "SEQH");
703 avio_wb32(pb, 0xe2c0211d);
704 avio_wb32(pb, 0xc0000000);
709 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
711 int64_t pos = avio_tell(pb);
714 ffio_wfourcc(pb, "avcC");
715 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
716 return update_size(pb, pos);
719 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
721 int64_t pos = avio_tell(pb);
724 ffio_wfourcc(pb, "hvcC");
725 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
726 return update_size(pb, pos);
729 /* also used by all avid codecs (dv, imx, meridien) and their variants */
730 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
733 avio_wb32(pb, 24); /* size */
734 ffio_wfourcc(pb, "ACLR");
735 ffio_wfourcc(pb, "ACLR");
736 ffio_wfourcc(pb, "0001");
737 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
738 avio_wb32(pb, 0); /* unknown */
740 avio_wb32(pb, 24); /* size */
741 ffio_wfourcc(pb, "APRG");
742 ffio_wfourcc(pb, "APRG");
743 ffio_wfourcc(pb, "0001");
744 avio_wb32(pb, 1); /* unknown */
745 avio_wb32(pb, 0); /* unknown */
747 avio_wb32(pb, 120); /* size */
748 ffio_wfourcc(pb, "ARES");
749 ffio_wfourcc(pb, "ARES");
750 ffio_wfourcc(pb, "0001");
751 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
752 avio_wb32(pb, track->enc->width);
753 /* values below are based on samples created with quicktime and avid codecs */
754 if (track->vos_data[5] & 2) { // interlaced
755 avio_wb32(pb, track->enc->height / 2);
756 avio_wb32(pb, 2); /* unknown */
757 avio_wb32(pb, 0); /* unknown */
758 avio_wb32(pb, 4); /* unknown */
760 avio_wb32(pb, track->enc->height);
761 avio_wb32(pb, 1); /* unknown */
762 avio_wb32(pb, 0); /* unknown */
763 if (track->enc->height == 1080)
764 avio_wb32(pb, 5); /* unknown */
766 avio_wb32(pb, 6); /* unknown */
769 for (i = 0; i < 10; i++)
772 /* extra padding for stsd needed */
777 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
779 int tag = track->enc->codec_tag;
781 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
784 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
785 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
786 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
787 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
788 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
789 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
790 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
791 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
792 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
797 static const AVCodecTag codec_ipod_tags[] = {
798 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
799 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
800 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
801 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
802 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
803 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
804 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
805 { AV_CODEC_ID_NONE, 0 },
808 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
810 int tag = track->enc->codec_tag;
812 // keep original tag for subs, ipod supports both formats
813 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
814 (tag == MKTAG('t', 'x', '3', 'g') ||
815 tag == MKTAG('t', 'e', 'x', 't'))))
816 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
818 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
819 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
820 "Quicktime/Ipod might not play the file\n");
825 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
829 if (track->enc->width == 720) /* SD */
830 if (track->enc->height == 480) /* NTSC */
831 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
832 else tag = MKTAG('d','v','c',' ');
833 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
834 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
835 else tag = MKTAG('d','v','p','p');
836 else if (track->enc->height == 720) /* HD 720 line */
837 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
838 else tag = MKTAG('d','v','h','p');
839 else if (track->enc->height == 1080) /* HD 1080 line */
840 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
841 else tag = MKTAG('d','v','h','6');
843 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
850 static const struct {
851 enum AVPixelFormat pix_fmt;
854 } mov_pix_fmt_tags[] = {
855 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
856 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
857 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
858 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
859 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
860 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
861 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
862 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
863 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
864 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
865 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
866 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
867 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
868 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
871 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
873 int tag = track->enc->codec_tag;
876 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
877 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
878 tag = mov_pix_fmt_tags[i].tag;
879 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
887 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
889 int tag = track->enc->codec_tag;
891 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
892 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
893 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
894 track->enc->codec_id == AV_CODEC_ID_H263 ||
895 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
896 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
897 tag = mov_get_dv_codec_tag(s, track);
898 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
899 tag = mov_get_rawvideo_codec_tag(s, track);
900 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
901 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
902 if (!tag) { // if no mac fcc found, try with Microsoft tags
903 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
905 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
906 "the file may be unplayable!\n");
908 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
909 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
910 if (!tag) { // if no mac fcc found, try with Microsoft tags
911 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
913 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
914 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
915 "the file may be unplayable!\n");
918 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
919 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
925 static const AVCodecTag codec_3gp_tags[] = {
926 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
927 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
928 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
929 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
930 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
931 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
932 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
933 { AV_CODEC_ID_NONE, 0 },
936 static const AVCodecTag codec_f4v_tags[] = {
937 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
938 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
939 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
940 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
941 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
942 { AV_CODEC_ID_NONE, 0 },
945 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
949 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
950 tag = mp4_get_codec_tag(s, track);
951 else if (track->mode == MODE_ISM) {
952 tag = mp4_get_codec_tag(s, track);
953 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
954 tag = MKTAG('w', 'm', 'a', ' ');
955 } else if (track->mode == MODE_IPOD)
956 tag = ipod_get_codec_tag(s, track);
957 else if (track->mode & MODE_3GP)
958 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
959 else if (track->mode == MODE_F4V)
960 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
962 tag = mov_get_codec_tag(s, track);
968 * Needed to make file play in iPods running newest firmware
969 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
971 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
974 ffio_wfourcc(pb, "uuid");
975 avio_wb32(pb, 0x6b6840f2);
976 avio_wb32(pb, 0x5f244fc5);
977 avio_wb32(pb, 0xba39a51b);
978 avio_wb32(pb, 0xcf0323f3);
983 static const uint16_t fiel_data[] = {
984 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
987 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
989 unsigned mov_field_order = 0;
990 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
991 mov_field_order = fiel_data[track->enc->field_order];
995 ffio_wfourcc(pb, "fiel");
996 avio_wb16(pb, mov_field_order);
1000 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1002 int64_t pos = avio_tell(pb);
1003 avio_wb32(pb, 0); /* size */
1004 avio_wl32(pb, track->tag); // store it byteswapped
1005 avio_wb32(pb, 0); /* Reserved */
1006 avio_wb16(pb, 0); /* Reserved */
1007 avio_wb16(pb, 1); /* Data-reference index */
1009 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1010 mov_write_esds_tag(pb, track);
1011 else if (track->enc->extradata_size)
1012 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1014 return update_size(pb, pos);
1017 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1020 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1021 track->enc->sample_aspect_ratio.den, INT_MAX);
1024 ffio_wfourcc(pb, "pasp");
1025 avio_wb32(pb, sar.num);
1026 avio_wb32(pb, sar.den);
1030 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1032 AVDictionaryEntry *encoder;
1033 int64_t pos = avio_tell(pb);
1034 char compressor_name[32] = { 0 };
1036 avio_wb32(pb, 0); /* size */
1037 avio_wl32(pb, track->tag); // store it byteswapped
1038 avio_wb32(pb, 0); /* Reserved */
1039 avio_wb16(pb, 0); /* Reserved */
1040 avio_wb16(pb, 1); /* Data-reference index */
1042 avio_wb16(pb, 0); /* Codec stream version */
1043 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1044 if (track->mode == MODE_MOV) {
1045 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1046 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1047 avio_wb32(pb, 0); /* Temporal Quality */
1048 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1050 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1051 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1054 avio_wb32(pb, 0); /* Reserved */
1055 avio_wb32(pb, 0); /* Reserved */
1056 avio_wb32(pb, 0); /* Reserved */
1058 avio_wb16(pb, track->enc->width); /* Video width */
1059 avio_wb16(pb, track->height); /* Video height */
1060 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1061 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1062 avio_wb32(pb, 0); /* Data size (= 0) */
1063 avio_wb16(pb, 1); /* Frame count (= 1) */
1065 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1066 if (track->mode == MODE_MOV &&
1067 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1068 av_strlcpy(compressor_name, encoder->value, 32);
1069 avio_w8(pb, strlen(compressor_name));
1070 avio_write(pb, compressor_name, 31);
1072 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1073 avio_wb16(pb, track->enc->bits_per_coded_sample);
1075 avio_wb16(pb, 0x18); /* Reserved */
1076 avio_wb16(pb, 0xffff); /* Reserved */
1077 if (track->tag == MKTAG('m','p','4','v'))
1078 mov_write_esds_tag(pb, track);
1079 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1080 mov_write_d263_tag(pb);
1081 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1082 mov_write_svq3_tag(pb);
1083 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1084 mov_write_avid_tag(pb, track);
1085 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1086 mov_write_hvcc_tag(pb, track);
1087 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1088 mov_write_avcc_tag(pb, track);
1089 if (track->mode == MODE_IPOD)
1090 mov_write_uuid_tag_ipod(pb);
1091 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1092 mov_write_fiel_tag(pb, track);
1093 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1094 mov_write_dvc1_tag(pb, track);
1095 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1096 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1097 /* Don't write any potential extradata here - the cropping
1098 * is signalled via the normal width/height fields. */
1099 } else if (track->vos_len > 0)
1100 mov_write_glbl_tag(pb, track);
1102 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1103 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1104 mov_write_pasp_tag(pb, track);
1107 return update_size(pb, pos);
1110 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1112 int64_t pos = avio_tell(pb);
1113 avio_wb32(pb, 0); /* size */
1114 ffio_wfourcc(pb, "rtp ");
1115 avio_wb32(pb, 0); /* Reserved */
1116 avio_wb16(pb, 0); /* Reserved */
1117 avio_wb16(pb, 1); /* Data-reference index */
1119 avio_wb16(pb, 1); /* Hint track version */
1120 avio_wb16(pb, 1); /* Highest compatible version */
1121 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1123 avio_wb32(pb, 12); /* size */
1124 ffio_wfourcc(pb, "tims");
1125 avio_wb32(pb, track->timescale);
1127 return update_size(pb, pos);
1130 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1132 int64_t pos = avio_tell(pb);
1134 avio_wb32(pb, 0); /* size */
1135 ffio_wfourcc(pb, "tmcd"); /* Data format */
1136 avio_wb32(pb, 0); /* Reserved */
1137 avio_wb32(pb, 1); /* Data reference index */
1138 if (track->enc->extradata_size)
1139 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1140 return update_size(pb, pos);
1143 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1145 int64_t pos = avio_tell(pb);
1146 avio_wb32(pb, 0); /* size */
1147 ffio_wfourcc(pb, "stsd");
1148 avio_wb32(pb, 0); /* version & flags */
1149 avio_wb32(pb, 1); /* entry count */
1150 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1151 mov_write_video_tag(pb, track);
1152 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1153 mov_write_audio_tag(pb, track);
1154 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1155 mov_write_subtitle_tag(pb, track);
1156 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1157 mov_write_rtp_tag(pb, track);
1158 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1159 mov_write_tmcd_tag(pb, track);
1160 return update_size(pb, pos);
1163 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1165 MOVStts *ctts_entries;
1166 uint32_t entries = 0;
1170 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1172 return AVERROR(ENOMEM);
1173 ctts_entries[0].count = 1;
1174 ctts_entries[0].duration = track->cluster[0].cts;
1175 for (i = 1; i < track->entry; i++) {
1176 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1177 ctts_entries[entries].count++; /* compress */
1180 ctts_entries[entries].duration = track->cluster[i].cts;
1181 ctts_entries[entries].count = 1;
1184 entries++; /* last one */
1185 atom_size = 16 + (entries * 8);
1186 avio_wb32(pb, atom_size); /* size */
1187 ffio_wfourcc(pb, "ctts");
1188 avio_wb32(pb, 0); /* version & flags */
1189 avio_wb32(pb, entries); /* entry count */
1190 for (i = 0; i < entries; i++) {
1191 avio_wb32(pb, ctts_entries[i].count);
1192 avio_wb32(pb, ctts_entries[i].duration);
1194 av_free(ctts_entries);
1198 /* Time to sample atom */
1199 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1201 MOVStts *stts_entries = NULL;
1202 uint32_t entries = -1;
1206 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1207 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1209 return AVERROR(ENOMEM);
1210 stts_entries[0].count = track->sample_count;
1211 stts_entries[0].duration = 1;
1215 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1217 return AVERROR(ENOMEM);
1219 for (i = 0; i < track->entry; i++) {
1220 int duration = get_cluster_duration(track, i);
1221 if (i && duration == stts_entries[entries].duration) {
1222 stts_entries[entries].count++; /* compress */
1225 stts_entries[entries].duration = duration;
1226 stts_entries[entries].count = 1;
1229 entries++; /* last one */
1231 atom_size = 16 + (entries * 8);
1232 avio_wb32(pb, atom_size); /* size */
1233 ffio_wfourcc(pb, "stts");
1234 avio_wb32(pb, 0); /* version & flags */
1235 avio_wb32(pb, entries); /* entry count */
1236 for (i = 0; i < entries; i++) {
1237 avio_wb32(pb, stts_entries[i].count);
1238 avio_wb32(pb, stts_entries[i].duration);
1240 av_free(stts_entries);
1244 static int mov_write_dref_tag(AVIOContext *pb)
1246 avio_wb32(pb, 28); /* size */
1247 ffio_wfourcc(pb, "dref");
1248 avio_wb32(pb, 0); /* version & flags */
1249 avio_wb32(pb, 1); /* entry count */
1251 avio_wb32(pb, 0xc); /* size */
1252 ffio_wfourcc(pb, "url ");
1253 avio_wb32(pb, 1); /* version & flags */
1258 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1260 int64_t pos = avio_tell(pb);
1261 avio_wb32(pb, 0); /* size */
1262 ffio_wfourcc(pb, "stbl");
1263 mov_write_stsd_tag(pb, track);
1264 mov_write_stts_tag(pb, track);
1265 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1266 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1267 track->has_keyframes && track->has_keyframes < track->entry)
1268 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1269 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1270 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1271 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1272 track->flags & MOV_TRACK_CTTS && track->entry)
1273 mov_write_ctts_tag(pb, track);
1274 mov_write_stsc_tag(pb, track);
1275 mov_write_stsz_tag(pb, track);
1276 mov_write_stco_tag(pb, track);
1277 return update_size(pb, pos);
1280 static int mov_write_dinf_tag(AVIOContext *pb)
1282 int64_t pos = avio_tell(pb);
1283 avio_wb32(pb, 0); /* size */
1284 ffio_wfourcc(pb, "dinf");
1285 mov_write_dref_tag(pb);
1286 return update_size(pb, pos);
1289 static int mov_write_nmhd_tag(AVIOContext *pb)
1292 ffio_wfourcc(pb, "nmhd");
1297 static int mov_write_gmhd_tag(AVIOContext *pb)
1299 avio_wb32(pb, 0x20); /* size */
1300 ffio_wfourcc(pb, "gmhd");
1301 avio_wb32(pb, 0x18); /* gmin size */
1302 ffio_wfourcc(pb, "gmin");/* generic media info */
1303 avio_wb32(pb, 0); /* version & flags */
1304 avio_wb16(pb, 0x40); /* graphics mode = */
1305 avio_wb16(pb, 0x8000); /* opColor (r?) */
1306 avio_wb16(pb, 0x8000); /* opColor (g?) */
1307 avio_wb16(pb, 0x8000); /* opColor (b?) */
1308 avio_wb16(pb, 0); /* balance */
1309 avio_wb16(pb, 0); /* reserved */
1313 static int mov_write_smhd_tag(AVIOContext *pb)
1315 avio_wb32(pb, 16); /* size */
1316 ffio_wfourcc(pb, "smhd");
1317 avio_wb32(pb, 0); /* version & flags */
1318 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1319 avio_wb16(pb, 0); /* reserved */
1323 static int mov_write_vmhd_tag(AVIOContext *pb)
1325 avio_wb32(pb, 0x14); /* size (always 0x14) */
1326 ffio_wfourcc(pb, "vmhd");
1327 avio_wb32(pb, 0x01); /* version & flags */
1328 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1332 static int is_clcp_track(MOVTrack *track)
1334 return track->tag == MKTAG('c','7','0','8') ||
1335 track->tag == MKTAG('c','6','0','8');
1338 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1340 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1341 int64_t pos = avio_tell(pb);
1345 descr = "DataHandler";
1348 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1349 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1351 descr = "VideoHandler";
1352 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1354 descr = "SoundHandler";
1355 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1356 if (track->tag == MKTAG('t','x','3','g')) {
1358 } else if (track->tag == MKTAG('m','p','4','s')) {
1360 } else if (is_clcp_track(track)) {
1365 descr = "SubtitleHandler";
1366 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1368 descr = "HintHandler";
1369 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1371 descr = "TimeCodeHandler";
1374 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1375 track->enc->codec_tag);
1377 av_log(track->enc, AV_LOG_WARNING,
1378 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1379 tag_buf, track->enc->codec_tag);
1382 // hdlr.name is used by some players to identify the content title
1383 // of the track. So if an alternate handler description is
1384 // specified, use it.
1385 AVDictionaryEntry *t;
1386 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1387 if (t && utf8len(t->value))
1392 avio_wb32(pb, 0); /* size */
1393 ffio_wfourcc(pb, "hdlr");
1394 avio_wb32(pb, 0); /* Version & flags */
1395 avio_write(pb, hdlr, 4); /* handler */
1396 ffio_wfourcc(pb, hdlr_type); /* handler type */
1397 avio_wb32(pb, 0); /* reserved */
1398 avio_wb32(pb, 0); /* reserved */
1399 avio_wb32(pb, 0); /* reserved */
1400 if (!track || track->mode == MODE_MOV)
1401 avio_w8(pb, strlen(descr)); /* pascal string */
1402 avio_write(pb, descr, strlen(descr)); /* handler description */
1403 if (track && track->mode != MODE_MOV)
1404 avio_w8(pb, 0); /* c string */
1405 return update_size(pb, pos);
1408 static int mov_write_hmhd_tag(AVIOContext *pb)
1410 /* This atom must be present, but leaving the values at zero
1411 * seems harmless. */
1412 avio_wb32(pb, 28); /* size */
1413 ffio_wfourcc(pb, "hmhd");
1414 avio_wb32(pb, 0); /* version, flags */
1415 avio_wb16(pb, 0); /* maxPDUsize */
1416 avio_wb16(pb, 0); /* avgPDUsize */
1417 avio_wb32(pb, 0); /* maxbitrate */
1418 avio_wb32(pb, 0); /* avgbitrate */
1419 avio_wb32(pb, 0); /* reserved */
1423 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1425 int64_t pos = avio_tell(pb);
1426 avio_wb32(pb, 0); /* size */
1427 ffio_wfourcc(pb, "minf");
1428 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1429 mov_write_vmhd_tag(pb);
1430 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1431 mov_write_smhd_tag(pb);
1432 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1433 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1434 mov_write_gmhd_tag(pb);
1436 mov_write_nmhd_tag(pb);
1438 } else if (track->tag == MKTAG('r','t','p',' ')) {
1439 mov_write_hmhd_tag(pb);
1440 } else if (track->tag == MKTAG('t','m','c','d')) {
1441 mov_write_gmhd_tag(pb);
1443 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1444 mov_write_hdlr_tag(pb, NULL);
1445 mov_write_dinf_tag(pb);
1446 mov_write_stbl_tag(pb, track);
1447 return update_size(pb, pos);
1450 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1453 int version = track->track_duration < INT32_MAX ? 0 : 1;
1455 if (track->mode == MODE_ISM)
1458 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1459 ffio_wfourcc(pb, "mdhd");
1460 avio_w8(pb, version);
1461 avio_wb24(pb, 0); /* flags */
1463 avio_wb64(pb, track->time);
1464 avio_wb64(pb, track->time);
1466 avio_wb32(pb, track->time); /* creation time */
1467 avio_wb32(pb, track->time); /* modification time */
1469 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1470 if (!track->entry && mov->mode == MODE_ISM)
1471 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1472 else if (!track->entry)
1473 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1475 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1476 avio_wb16(pb, track->language); /* language */
1477 avio_wb16(pb, 0); /* reserved (quality) */
1479 if (version != 0 && track->mode == MODE_MOV) {
1480 av_log(NULL, AV_LOG_ERROR,
1481 "FATAL error, file duration too long for timebase, this file will not be\n"
1482 "playable with quicktime. Choose a different timebase or a different\n"
1483 "container format\n");
1489 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
1492 int64_t pos = avio_tell(pb);
1493 avio_wb32(pb, 0); /* size */
1494 ffio_wfourcc(pb, "mdia");
1495 mov_write_mdhd_tag(pb, mov, track);
1496 mov_write_hdlr_tag(pb, track);
1497 mov_write_minf_tag(pb, track);
1498 return update_size(pb, pos);
1501 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1502 MOVTrack *track, AVStream *st)
1504 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1505 track->timescale, AV_ROUND_UP);
1506 int version = duration < INT32_MAX ? 0 : 1;
1507 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1510 uint32_t *display_matrix = NULL;
1511 int display_matrix_size, i;
1514 if (mov->per_stream_grouping)
1517 group = st->codec->codec_type;
1519 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1520 &display_matrix_size);
1521 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1522 display_matrix = NULL;
1525 if (track->flags & MOV_TRACK_ENABLED)
1526 flags |= MOV_TKHD_FLAG_ENABLED;
1528 if (track->mode == MODE_ISM)
1531 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1532 ffio_wfourcc(pb, "tkhd");
1533 avio_w8(pb, version);
1534 avio_wb24(pb, flags);
1536 avio_wb64(pb, track->time);
1537 avio_wb64(pb, track->time);
1539 avio_wb32(pb, track->time); /* creation time */
1540 avio_wb32(pb, track->time); /* modification time */
1542 avio_wb32(pb, track->track_id); /* track-id */
1543 avio_wb32(pb, 0); /* reserved */
1544 if (!track->entry && mov->mode == MODE_ISM)
1545 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1546 else if (!track->entry)
1547 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1549 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1551 avio_wb32(pb, 0); /* reserved */
1552 avio_wb32(pb, 0); /* reserved */
1553 avio_wb16(pb, 0); /* layer */
1554 avio_wb16(pb, group); /* alternate group) */
1555 /* Volume, only for audio */
1556 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1557 avio_wb16(pb, 0x0100);
1560 avio_wb16(pb, 0); /* reserved */
1562 /* Matrix structure */
1563 if (display_matrix) {
1564 for (i = 0; i < 9; i++)
1565 avio_wb32(pb, display_matrix[i]);
1567 avio_wb32(pb, 0x00010000); /* reserved */
1568 avio_wb32(pb, 0x0); /* reserved */
1569 avio_wb32(pb, 0x0); /* reserved */
1570 avio_wb32(pb, 0x0); /* reserved */
1571 avio_wb32(pb, 0x00010000); /* reserved */
1572 avio_wb32(pb, 0x0); /* reserved */
1573 avio_wb32(pb, 0x0); /* reserved */
1574 avio_wb32(pb, 0x0); /* reserved */
1575 avio_wb32(pb, 0x40000000); /* reserved */
1578 /* Track width and height, for visual only */
1579 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1580 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1581 if (track->mode == MODE_MOV) {
1582 avio_wb32(pb, track->enc->width << 16);
1583 avio_wb32(pb, track->height << 16);
1585 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1586 if (!sample_aspect_ratio || track->height != track->enc->height)
1587 sample_aspect_ratio = 1;
1588 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1589 avio_wb32(pb, track->height * 0x10000);
1598 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1600 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1601 track->enc->sample_aspect_ratio.den);
1603 int64_t pos = avio_tell(pb);
1605 avio_wb32(pb, 0); /* size */
1606 ffio_wfourcc(pb, "tapt");
1609 ffio_wfourcc(pb, "clef");
1611 avio_wb32(pb, width << 16);
1612 avio_wb32(pb, track->enc->height << 16);
1615 ffio_wfourcc(pb, "prof");
1617 avio_wb32(pb, width << 16);
1618 avio_wb32(pb, track->enc->height << 16);
1621 ffio_wfourcc(pb, "enof");
1623 avio_wb32(pb, track->enc->width << 16);
1624 avio_wb32(pb, track->enc->height << 16);
1626 return update_size(pb, pos);
1629 // This box seems important for the psp playback ... without it the movie seems to hang
1630 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1633 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1634 track->timescale, AV_ROUND_UP);
1635 int version = duration < INT32_MAX ? 0 : 1;
1636 int entry_size, entry_count, size;
1637 int64_t delay, start_ct = track->start_cts;
1638 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1639 track->timescale, AV_ROUND_DOWN);
1640 version |= delay < INT32_MAX ? 0 : 1;
1642 entry_size = (version == 1) ? 20 : 12;
1643 entry_count = 1 + (delay > 0);
1644 size = 24 + entry_count * entry_size;
1646 /* write the atom data */
1647 avio_wb32(pb, size);
1648 ffio_wfourcc(pb, "edts");
1649 avio_wb32(pb, size - 8);
1650 ffio_wfourcc(pb, "elst");
1651 avio_w8(pb, version);
1652 avio_wb24(pb, 0); /* flags */
1654 avio_wb32(pb, entry_count);
1655 if (delay > 0) { /* add an empty edit to delay presentation */
1656 /* In the positive delay case, the delay includes the cts
1657 * offset, and the second edit list entry below trims out
1658 * the same amount from the actual content. This makes sure
1659 * that the offsetted last sample is included in the edit
1660 * list duration as well. */
1662 avio_wb64(pb, delay);
1665 avio_wb32(pb, delay);
1668 avio_wb32(pb, 0x00010000);
1670 /* Avoid accidentally ending up with start_ct = -1 which has got a
1671 * special meaning. Normally start_ct should end up positive or zero
1672 * here, but use FFMIN in case dts is a a small positive integer
1673 * rounded to 0 when represented in MOV_TIMESCALE units. */
1674 start_ct = -FFMIN(track->start_dts, 0);
1675 /* Note, this delay is calculated from the pts of the first sample,
1676 * ensuring that we don't reduce the duration for cases with
1681 /* For fragmented files, we don't know the full length yet. Setting
1682 * duration to 0 allows us to only specify the offset, including
1683 * the rest of the content (from all future fragments) without specifying
1684 * an explicit duration. */
1685 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1690 avio_wb64(pb, duration);
1691 avio_wb64(pb, start_ct);
1693 avio_wb32(pb, duration);
1694 avio_wb32(pb, start_ct);
1696 avio_wb32(pb, 0x00010000);
1700 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1702 avio_wb32(pb, 20); // size
1703 ffio_wfourcc(pb, "tref");
1704 avio_wb32(pb, 12); // size (subatom)
1705 avio_wl32(pb, track->tref_tag);
1706 avio_wb32(pb, track->tref_id);
1710 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1711 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1713 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1714 ffio_wfourcc(pb, "uuid");
1715 ffio_wfourcc(pb, "USMT");
1716 avio_wb32(pb, 0x21d24fce);
1717 avio_wb32(pb, 0xbb88695c);
1718 avio_wb32(pb, 0xfac9c740);
1719 avio_wb32(pb, 0x1c); // another size here!
1720 ffio_wfourcc(pb, "MTDT");
1721 avio_wb32(pb, 0x00010012);
1722 avio_wb32(pb, 0x0a);
1723 avio_wb32(pb, 0x55c40000);
1729 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1731 AVFormatContext *ctx = track->rtp_ctx;
1732 char buf[1000] = "";
1735 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1736 NULL, NULL, 0, 0, ctx);
1737 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1740 avio_wb32(pb, len + 24);
1741 ffio_wfourcc(pb, "udta");
1742 avio_wb32(pb, len + 16);
1743 ffio_wfourcc(pb, "hnti");
1744 avio_wb32(pb, len + 8);
1745 ffio_wfourcc(pb, "sdp ");
1746 avio_write(pb, buf, len);
1750 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1751 const char *tag, const char *str)
1753 int64_t pos = avio_tell(pb);
1754 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1755 if (!t || !utf8len(t->value))
1758 avio_wb32(pb, 0); /* size */
1759 ffio_wfourcc(pb, tag); /* type */
1760 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1761 return update_size(pb, pos);
1764 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1767 AVIOContext *pb_buf;
1774 ret = avio_open_dyn_buf(&pb_buf);
1778 if (mov->mode & MODE_MP4)
1779 mov_write_track_metadata(pb_buf, st, "name", "title");
1781 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1782 avio_wb32(pb, size + 8);
1783 ffio_wfourcc(pb, "udta");
1784 avio_write(pb, buf, size);
1791 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1792 MOVTrack *track, AVStream *st)
1794 int64_t pos = avio_tell(pb);
1795 int entry_backup = track->entry;
1796 /* If we want to have an empty moov, but some samples already have been
1797 * buffered (delay_moov), pretend that no samples have been written yet. */
1798 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1801 avio_wb32(pb, 0); /* size */
1802 ffio_wfourcc(pb, "trak");
1803 mov_write_tkhd_tag(pb, mov, track, st);
1804 if (track->start_dts != AV_NOPTS_VALUE &&
1805 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1806 track->start_dts || is_clcp_track(track))) {
1807 if (mov->use_editlist)
1808 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1809 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1810 av_log(mov->fc, AV_LOG_WARNING,
1811 "Not writing any edit list even though one would have been required\n");
1813 if (track->tref_tag)
1814 mov_write_tref_tag(pb, track);
1815 mov_write_mdia_tag(pb, mov, track);
1816 if (track->mode == MODE_PSP)
1817 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1818 if (track->tag == MKTAG('r','t','p',' '))
1819 mov_write_udta_sdp(pb, track);
1820 if (track->mode == MODE_MOV) {
1821 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1822 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1823 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1824 mov_write_tapt_tag(pb, track);
1827 if (is_clcp_track(track)) {
1828 mov_write_tapt_tag(pb, track);
1831 mov_write_track_udta_tag(pb, mov, st);
1832 track->entry = entry_backup;
1833 return update_size(pb, pos);
1836 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1838 int i, has_audio = 0, has_video = 0;
1839 int64_t pos = avio_tell(pb);
1840 int audio_profile = mov->iods_audio_profile;
1841 int video_profile = mov->iods_video_profile;
1842 for (i = 0; i < mov->nb_streams; i++) {
1843 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1844 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1845 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1848 if (audio_profile < 0)
1849 audio_profile = 0xFF - has_audio;
1850 if (video_profile < 0)
1851 video_profile = 0xFF - has_video;
1852 avio_wb32(pb, 0x0); /* size */
1853 ffio_wfourcc(pb, "iods");
1854 avio_wb32(pb, 0); /* version & flags */
1855 put_descr(pb, 0x10, 7);
1856 avio_wb16(pb, 0x004f);
1859 avio_w8(pb, audio_profile);
1860 avio_w8(pb, video_profile);
1862 return update_size(pb, pos);
1865 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1867 avio_wb32(pb, 0x20); /* size */
1868 ffio_wfourcc(pb, "trex");
1869 avio_wb32(pb, 0); /* version & flags */
1870 avio_wb32(pb, track->track_id); /* track ID */
1871 avio_wb32(pb, 1); /* default sample description index */
1872 avio_wb32(pb, 0); /* default sample duration */
1873 avio_wb32(pb, 0); /* default sample size */
1874 avio_wb32(pb, 0); /* default sample flags */
1878 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1880 int64_t pos = avio_tell(pb);
1882 avio_wb32(pb, 0x0); /* size */
1883 ffio_wfourcc(pb, "mvex");
1884 for (i = 0; i < mov->nb_streams; i++)
1885 mov_write_trex_tag(pb, &mov->tracks[i]);
1886 return update_size(pb, pos);
1889 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1891 int max_track_id = 1, i;
1892 int64_t max_track_len_temp, max_track_len = 0;
1895 for (i = 0; i < mov->nb_streams; i++) {
1896 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1897 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1899 mov->tracks[i].timescale,
1901 if (max_track_len < max_track_len_temp)
1902 max_track_len = max_track_len_temp;
1903 if (max_track_id < mov->tracks[i].track_id)
1904 max_track_id = mov->tracks[i].track_id;
1907 /* If using delay_moov, make sure the output is the same as if no
1908 * samples had been written yet. */
1909 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1914 version = max_track_len < UINT32_MAX ? 0 : 1;
1915 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1916 ffio_wfourcc(pb, "mvhd");
1917 avio_w8(pb, version);
1918 avio_wb24(pb, 0); /* flags */
1920 avio_wb64(pb, mov->time);
1921 avio_wb64(pb, mov->time);
1923 avio_wb32(pb, mov->time); /* creation time */
1924 avio_wb32(pb, mov->time); /* modification time */
1926 avio_wb32(pb, MOV_TIMESCALE);
1927 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1929 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1930 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1931 avio_wb16(pb, 0); /* reserved */
1932 avio_wb32(pb, 0); /* reserved */
1933 avio_wb32(pb, 0); /* reserved */
1935 /* Matrix structure */
1936 avio_wb32(pb, 0x00010000); /* reserved */
1937 avio_wb32(pb, 0x0); /* reserved */
1938 avio_wb32(pb, 0x0); /* reserved */
1939 avio_wb32(pb, 0x0); /* reserved */
1940 avio_wb32(pb, 0x00010000); /* reserved */
1941 avio_wb32(pb, 0x0); /* reserved */
1942 avio_wb32(pb, 0x0); /* reserved */
1943 avio_wb32(pb, 0x0); /* reserved */
1944 avio_wb32(pb, 0x40000000); /* reserved */
1946 avio_wb32(pb, 0); /* reserved (preview time) */
1947 avio_wb32(pb, 0); /* reserved (preview duration) */
1948 avio_wb32(pb, 0); /* reserved (poster time) */
1949 avio_wb32(pb, 0); /* reserved (selection time) */
1950 avio_wb32(pb, 0); /* reserved (selection duration) */
1951 avio_wb32(pb, 0); /* reserved (current time) */
1952 avio_wb32(pb, max_track_id + 1); /* Next track id */
1956 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1959 avio_wb32(pb, 33); /* size */
1960 ffio_wfourcc(pb, "hdlr");
1963 ffio_wfourcc(pb, "mdir");
1964 ffio_wfourcc(pb, "appl");
1971 /* helper function to write a data tag with the specified string as data */
1972 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1975 int size = 16 + strlen(data);
1976 avio_wb32(pb, size); /* size */
1977 ffio_wfourcc(pb, "data");
1980 avio_write(pb, data, strlen(data));
1984 lang = ff_mov_iso639_to_lang("und", 1);
1985 avio_wb16(pb, strlen(data)); /* string length */
1986 avio_wb16(pb, lang);
1987 avio_write(pb, data, strlen(data));
1988 return strlen(data) + 4;
1992 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1993 const char *value, int lang, int long_style)
1996 if (value && value[0]) {
1997 int64_t pos = avio_tell(pb);
1998 avio_wb32(pb, 0); /* size */
1999 ffio_wfourcc(pb, name);
2000 mov_write_string_data_tag(pb, value, lang, long_style);
2001 size = update_size(pb, pos);
2006 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2007 const char *name, const char *tag,
2010 int l, lang = 0, len, len2;
2011 AVDictionaryEntry *t, *t2 = NULL;
2014 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2017 len = strlen(t->key);
2018 snprintf(tag2, sizeof(tag2), "%s-", tag);
2019 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2020 len2 = strlen(t2->key);
2021 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2022 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2027 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2030 /* iTunes track number */
2031 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2034 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2035 int size = 0, track = t ? atoi(t->value) : 0;
2037 avio_wb32(pb, 32); /* size */
2038 ffio_wfourcc(pb, "trkn");
2039 avio_wb32(pb, 24); /* size */
2040 ffio_wfourcc(pb, "data");
2041 avio_wb32(pb, 0); // 8 bytes empty
2043 avio_wb16(pb, 0); // empty
2044 avio_wb16(pb, track); // track number
2045 avio_wb16(pb, 0); // total track number
2046 avio_wb16(pb, 0); // empty
2052 /* iTunes meta data list */
2053 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2056 int64_t pos = avio_tell(pb);
2057 avio_wb32(pb, 0); /* size */
2058 ffio_wfourcc(pb, "ilst");
2059 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2060 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2061 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2062 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2063 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2064 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2065 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2066 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2067 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2069 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2070 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2071 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2072 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2073 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2074 mov_write_string_metadata(s, pb, "desc", "description",1);
2075 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2076 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2077 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2078 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2079 mov_write_trkn_tag(pb, mov, s);
2080 return update_size(pb, pos);
2083 /* iTunes meta data tag */
2084 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2088 int64_t pos = avio_tell(pb);
2089 avio_wb32(pb, 0); /* size */
2090 ffio_wfourcc(pb, "meta");
2092 mov_write_itunes_hdlr_tag(pb, mov, s);
2093 mov_write_ilst_tag(pb, mov, s);
2094 size = update_size(pb, pos);
2098 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2102 GET_UTF8(val, *b++, return -1;)
2105 avio_wb16(pb, 0x00);
2109 static uint16_t language_code(const char *str)
2111 return (((str[0] - 0x60) & 0x1F) << 10) +
2112 (((str[1] - 0x60) & 0x1F) << 5) +
2113 (( str[2] - 0x60) & 0x1F);
2116 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2117 const char *tag, const char *str)
2119 int64_t pos = avio_tell(pb);
2120 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2121 if (!t || !utf8len(t->value))
2123 avio_wb32(pb, 0); /* size */
2124 ffio_wfourcc(pb, tag); /* type */
2125 avio_wb32(pb, 0); /* version + flags */
2126 if (!strcmp(tag, "yrrc"))
2127 avio_wb16(pb, atoi(t->value));
2129 avio_wb16(pb, language_code("eng")); /* language */
2130 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2131 if (!strcmp(tag, "albm") &&
2132 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2133 avio_w8(pb, atoi(t->value));
2135 return update_size(pb, pos);
2138 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2140 int64_t pos = avio_tell(pb);
2141 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2143 avio_wb32(pb, 0); // size
2144 ffio_wfourcc(pb, "chpl");
2145 avio_wb32(pb, 0x01000000); // version + flags
2146 avio_wb32(pb, 0); // unknown
2147 avio_w8(pb, nb_chapters);
2149 for (i = 0; i < nb_chapters; i++) {
2150 AVChapter *c = s->chapters[i];
2151 AVDictionaryEntry *t;
2152 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2154 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2155 int len = FFMIN(strlen(t->value), 255);
2157 avio_write(pb, t->value, len);
2161 return update_size(pb, pos);
2164 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2167 AVIOContext *pb_buf;
2171 ret = avio_open_dyn_buf(&pb_buf);
2175 if (mov->mode & MODE_3GP) {
2176 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2177 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2178 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2179 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2180 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2181 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2182 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2183 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2184 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2185 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2186 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2187 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2188 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2189 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2190 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2191 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2192 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2193 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2194 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2195 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2196 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2198 /* iTunes meta data */
2199 mov_write_meta_tag(pb_buf, mov, s);
2202 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2203 mov_write_chpl_tag(pb_buf, s);
2205 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2206 avio_wb32(pb, size + 8);
2207 ffio_wfourcc(pb, "udta");
2208 avio_write(pb, buf, size);
2215 static void mov_write_psp_udta_tag(AVIOContext *pb,
2216 const char *str, const char *lang, int type)
2218 int len = utf8len(str) + 1;
2221 avio_wb16(pb, len * 2 + 10); /* size */
2222 avio_wb32(pb, type); /* type */
2223 avio_wb16(pb, language_code(lang)); /* language */
2224 avio_wb16(pb, 0x01); /* ? */
2225 ascii_to_wc(pb, str);
2228 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2230 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2234 pos = avio_tell(pb);
2235 avio_wb32(pb, 0); /* size placeholder*/
2236 ffio_wfourcc(pb, "uuid");
2237 ffio_wfourcc(pb, "USMT");
2238 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2239 avio_wb32(pb, 0xbb88695c);
2240 avio_wb32(pb, 0xfac9c740);
2242 pos2 = avio_tell(pb);
2243 avio_wb32(pb, 0); /* size placeholder*/
2244 ffio_wfourcc(pb, "MTDT");
2248 avio_wb16(pb, 0x0C); /* size */
2249 avio_wb32(pb, 0x0B); /* type */
2250 avio_wb16(pb, language_code("und")); /* language */
2251 avio_wb16(pb, 0x0); /* ? */
2252 avio_wb16(pb, 0x021C); /* data */
2254 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2255 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2256 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2258 update_size(pb, pos2);
2259 return update_size(pb, pos);
2265 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2269 int64_t pos = avio_tell(pb);
2270 avio_wb32(pb, 0); /* size placeholder*/
2271 ffio_wfourcc(pb, "moov");
2273 for (i = 0; i < mov->nb_streams; i++) {
2274 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2277 mov->tracks[i].time = mov->time;
2278 mov->tracks[i].track_id = i + 1;
2281 if (mov->chapter_track)
2282 for (i = 0; i < s->nb_streams; i++) {
2283 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2284 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2286 for (i = 0; i < mov->nb_streams; i++) {
2287 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2288 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2289 mov->tracks[i].tref_id =
2290 mov->tracks[mov->tracks[i].src_track].track_id;
2294 mov_write_mvhd_tag(pb, mov);
2295 if (mov->mode != MODE_MOV && !mov->iods_skip)
2296 mov_write_iods_tag(pb, mov);
2297 for (i = 0; i < mov->nb_streams; i++) {
2298 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2299 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2302 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2303 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2305 if (mov->mode == MODE_PSP)
2306 mov_write_uuidusmt_tag(pb, s);
2308 mov_write_udta_tag(pb, mov, s);
2310 return update_size(pb, pos);
2313 static void param_write_int(AVIOContext *pb, const char *name, int value)
2315 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2318 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2320 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2323 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2326 len = FFMIN(sizeof(buf) / 2 - 1, len);
2327 ff_data_to_hex(buf, value, len, 0);
2328 buf[2 * len] = '\0';
2329 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2332 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2334 int64_t pos = avio_tell(pb);
2336 const uint8_t uuid[] = {
2337 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2338 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2342 ffio_wfourcc(pb, "uuid");
2343 avio_write(pb, uuid, sizeof(uuid));
2346 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2347 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2348 avio_printf(pb, "<head>\n");
2349 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2351 avio_printf(pb, "</head>\n");
2352 avio_printf(pb, "<body>\n");
2353 avio_printf(pb, "<switch>\n");
2354 for (i = 0; i < mov->nb_streams; i++) {
2355 MOVTrack *track = &mov->tracks[i];
2357 /* track->track_id is initialized in write_moov, and thus isn't known
2359 int track_id = i + 1;
2361 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2363 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2368 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2369 track->enc->bit_rate);
2370 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2371 param_write_int(pb, "trackID", track_id);
2372 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2373 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2375 int size = track->enc->extradata_size;
2376 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2378 param_write_hex(pb, "CodecPrivateData",
2379 ptr ? ptr : track->enc->extradata,
2383 param_write_string(pb, "FourCC", "H264");
2384 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2385 param_write_string(pb, "FourCC", "WVC1");
2386 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2387 track->enc->extradata_size);
2389 param_write_int(pb, "MaxWidth", track->enc->width);
2390 param_write_int(pb, "MaxHeight", track->enc->height);
2391 param_write_int(pb, "DisplayWidth", track->enc->width);
2392 param_write_int(pb, "DisplayHeight", track->enc->height);
2394 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2395 param_write_string(pb, "FourCC", "AACL");
2396 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2397 param_write_string(pb, "FourCC", "WMAP");
2399 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2400 track->enc->extradata_size);
2401 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2402 track->enc->codec_id));
2403 param_write_int(pb, "Channels", track->enc->channels);
2404 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2405 param_write_int(pb, "BitsPerSample", 16);
2406 param_write_int(pb, "PacketSize", track->enc->block_align ?
2407 track->enc->block_align : 4);
2409 avio_printf(pb, "</%s>\n", type);
2411 avio_printf(pb, "</switch>\n");
2412 avio_printf(pb, "</body>\n");
2413 avio_printf(pb, "</smil>\n");
2415 return update_size(pb, pos);
2418 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2421 ffio_wfourcc(pb, "mfhd");
2423 avio_wb32(pb, mov->fragments);
2427 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2429 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2430 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2433 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2434 MOVTrack *track, int64_t moof_offset)
2436 int64_t pos = avio_tell(pb);
2437 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2438 MOV_TFHD_BASE_DATA_OFFSET;
2439 if (!track->entry) {
2440 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2442 flags |= MOV_TFHD_DEFAULT_FLAGS;
2444 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2445 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2446 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2447 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2448 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2451 /* Don't set a default sample size, the silverlight player refuses
2452 * to play files with that set. Don't set a default sample duration,
2453 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2454 * file format says it MUST NOT be set. */
2455 if (track->mode == MODE_ISM)
2456 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2457 MOV_TFHD_BASE_DATA_OFFSET);
2459 avio_wb32(pb, 0); /* size placeholder */
2460 ffio_wfourcc(pb, "tfhd");
2461 avio_w8(pb, 0); /* version */
2462 avio_wb24(pb, flags);
2464 avio_wb32(pb, track->track_id); /* track-id */
2465 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2466 avio_wb64(pb, moof_offset);
2467 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2468 track->default_duration = get_cluster_duration(track, 0);
2469 avio_wb32(pb, track->default_duration);
2471 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2472 track->default_size = track->entry ? track->cluster[0].size : 1;
2473 avio_wb32(pb, track->default_size);
2475 track->default_size = -1;
2477 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2478 /* Set the default flags based on the second sample, if available.
2479 * If the first sample is different, that can be signaled via a separate field. */
2480 if (track->entry > 1)
2481 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2483 track->default_sample_flags =
2484 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2485 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2486 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2487 avio_wb32(pb, track->default_sample_flags);
2490 return update_size(pb, pos);
2493 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2494 MOVTrack *track, int moof_size,
2497 int64_t pos = avio_tell(pb);
2498 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2501 for (i = first; i < end; i++) {
2502 if (get_cluster_duration(track, i) != track->default_duration)
2503 flags |= MOV_TRUN_SAMPLE_DURATION;
2504 if (track->cluster[i].size != track->default_size)
2505 flags |= MOV_TRUN_SAMPLE_SIZE;
2506 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2507 flags |= MOV_TRUN_SAMPLE_FLAGS;
2509 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2510 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2511 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2512 if (track->flags & MOV_TRACK_CTTS)
2513 flags |= MOV_TRUN_SAMPLE_CTS;
2515 avio_wb32(pb, 0); /* size placeholder */
2516 ffio_wfourcc(pb, "trun");
2517 avio_w8(pb, 0); /* version */
2518 avio_wb24(pb, flags);
2520 avio_wb32(pb, end - first); /* sample count */
2521 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2522 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2524 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2526 avio_wb32(pb, moof_size + 8 + track->data_offset +
2527 track->cluster[first].pos); /* data offset */
2528 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2529 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2531 for (i = first; i < end; i++) {
2532 if (flags & MOV_TRUN_SAMPLE_DURATION)
2533 avio_wb32(pb, get_cluster_duration(track, i));
2534 if (flags & MOV_TRUN_SAMPLE_SIZE)
2535 avio_wb32(pb, track->cluster[i].size);
2536 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2537 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2538 if (flags & MOV_TRUN_SAMPLE_CTS)
2539 avio_wb32(pb, track->cluster[i].cts);
2542 mov->first_trun = 0;
2543 return update_size(pb, pos);
2546 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2548 int64_t pos = avio_tell(pb);
2549 const uint8_t uuid[] = {
2550 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2551 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2554 avio_wb32(pb, 0); /* size placeholder */
2555 ffio_wfourcc(pb, "uuid");
2556 avio_write(pb, uuid, sizeof(uuid));
2559 avio_wb64(pb, track->start_dts + track->frag_start +
2560 track->cluster[0].cts);
2561 avio_wb64(pb, track->end_pts -
2562 (track->cluster[0].dts + track->cluster[0].cts));
2564 return update_size(pb, pos);
2567 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2568 MOVTrack *track, int entry)
2570 int n = track->nb_frag_info - 1 - entry, i;
2571 int size = 8 + 16 + 4 + 1 + 16*n;
2572 const uint8_t uuid[] = {
2573 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2574 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2580 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2581 avio_wb32(pb, size);
2582 ffio_wfourcc(pb, "uuid");
2583 avio_write(pb, uuid, sizeof(uuid));
2587 for (i = 0; i < n; i++) {
2588 int index = entry + 1 + i;
2589 avio_wb64(pb, track->frag_info[index].time);
2590 avio_wb64(pb, track->frag_info[index].duration);
2592 if (n < mov->ism_lookahead) {
2593 int free_size = 16 * (mov->ism_lookahead - n);
2594 avio_wb32(pb, free_size);
2595 ffio_wfourcc(pb, "free");
2596 for (i = 0; i < free_size - 8; i++)
2603 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2606 int64_t pos = avio_tell(pb);
2608 for (i = 0; i < mov->ism_lookahead; i++) {
2609 /* Update the tfrf tag for the last ism_lookahead fragments,
2610 * nb_frag_info - 1 is the next fragment to be written. */
2611 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2613 avio_seek(pb, pos, SEEK_SET);
2617 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2621 for (i = 0; i < mov->nb_streams; i++) {
2622 MOVTrack *track = &mov->tracks[i];
2623 MOVFragmentInfo *info;
2624 if ((tracks >= 0 && i != tracks) || !track->entry)
2626 track->nb_frag_info++;
2627 if (track->nb_frag_info >= track->frag_info_capacity) {
2628 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2629 if (av_reallocp_array(&track->frag_info,
2631 sizeof(*track->frag_info)))
2632 return AVERROR(ENOMEM);
2633 track->frag_info_capacity = new_capacity;
2635 info = &track->frag_info[track->nb_frag_info - 1];
2636 info->offset = avio_tell(pb);
2638 // Try to recreate the original pts for the first packet
2639 // from the fields we have stored
2640 info->time = track->start_dts + track->frag_start +
2641 track->cluster[0].cts;
2642 info->duration = track->end_pts -
2643 (track->cluster[0].dts + track->cluster[0].cts);
2644 // If the pts is less than zero, we will have trimmed
2645 // away parts of the media track using an edit list,
2646 // and the corresponding start presentation time is zero.
2647 if (info->time < 0) {
2648 info->duration += info->time;
2651 info->tfrf_offset = 0;
2652 mov_write_tfrf_tags(pb, mov, track);
2657 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2659 int64_t pos = avio_tell(pb);
2661 avio_wb32(pb, 0); /* size */
2662 ffio_wfourcc(pb, "tfdt");
2663 avio_w8(pb, 1); /* version */
2665 avio_wb64(pb, track->frag_start);
2666 return update_size(pb, pos);
2669 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2670 MOVTrack *track, int64_t moof_offset,
2673 int64_t pos = avio_tell(pb);
2675 avio_wb32(pb, 0); /* size placeholder */
2676 ffio_wfourcc(pb, "traf");
2678 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2679 if (mov->mode != MODE_ISM)
2680 mov_write_tfdt_tag(pb, track);
2681 for (i = 1; i < track->entry; i++) {
2682 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2683 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2687 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2688 if (mov->mode == MODE_ISM) {
2689 mov_write_tfxd_tag(pb, track);
2691 if (mov->ism_lookahead) {
2692 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2694 if (track->nb_frag_info > 0) {
2695 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2696 if (!info->tfrf_offset)
2697 info->tfrf_offset = avio_tell(pb);
2699 avio_wb32(pb, 8 + size);
2700 ffio_wfourcc(pb, "free");
2701 for (i = 0; i < size; i++)
2706 return update_size(pb, pos);
2709 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2710 int tracks, int moof_size)
2712 int64_t pos = avio_tell(pb);
2715 avio_wb32(pb, 0); /* size placeholder */
2716 ffio_wfourcc(pb, "moof");
2717 mov->first_trun = 1;
2719 mov_write_mfhd_tag(pb, mov);
2720 for (i = 0; i < mov->nb_streams; i++) {
2721 MOVTrack *track = &mov->tracks[i];
2722 if (tracks >= 0 && i != tracks)
2726 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2729 return update_size(pb, pos);
2732 static int mov_write_sidx_tag(AVIOContext *pb,
2733 MOVTrack *track, int ref_size, int total_sidx_size)
2735 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2736 int64_t presentation_time, duration, offset;
2737 int starts_with_SAP, i, entries;
2741 presentation_time = track->start_dts + track->frag_start +
2742 track->cluster[0].cts;
2743 duration = track->end_pts -
2744 (track->cluster[0].dts + track->cluster[0].cts);
2745 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2747 // pts<0 should be cut away using edts
2748 if (presentation_time < 0) {
2749 duration += presentation_time;
2750 presentation_time = 0;
2753 entries = track->nb_frag_info;
2756 presentation_time = track->frag_info[0].time;
2759 avio_wb32(pb, 0); /* size */
2760 ffio_wfourcc(pb, "sidx");
2761 avio_w8(pb, 1); /* version */
2763 avio_wb32(pb, track->track_id); /* reference_ID */
2764 avio_wb32(pb, track->timescale); /* timescale */
2765 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2766 offset_pos = avio_tell(pb);
2767 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2768 avio_wb16(pb, 0); /* reserved */
2770 avio_wb16(pb, entries); /* reference_count */
2771 for (i = 0; i < entries; i++) {
2772 if (!track->entry) {
2773 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2774 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2776 duration = track->frag_info[i].duration;
2777 ref_size = track->frag_info[i].size;
2778 starts_with_SAP = 1;
2780 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2781 avio_wb32(pb, duration); /* subsegment_duration */
2782 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2785 end_pos = avio_tell(pb);
2786 offset = pos + total_sidx_size - end_pos;
2787 avio_seek(pb, offset_pos, SEEK_SET);
2788 avio_wb64(pb, offset);
2789 avio_seek(pb, end_pos, SEEK_SET);
2790 return update_size(pb, pos);
2793 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2794 int tracks, int ref_size)
2797 AVIOContext *avio_buf;
2799 for (round = 0; round < 2; round++) {
2800 // First run one round to calculate the total size of all
2802 // This would be much simpler if we'd only write one sidx
2803 // atom, for the first track in the moof.
2805 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2810 for (i = 0; i < mov->nb_streams; i++) {
2811 MOVTrack *track = &mov->tracks[i];
2812 if (tracks >= 0 && i != tracks)
2814 // When writing a sidx for the full file, entry is 0, but
2815 // we want to include all tracks. ref_size is 0 in this case,
2816 // since we read it from frag_info instead.
2817 if (!track->entry && ref_size > 0)
2819 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2823 total_size = ffio_close_null_buf(avio_buf);
2828 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2831 AVIOContext *avio_buf;
2834 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2836 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2837 moof_size = ffio_close_null_buf(avio_buf);
2839 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART))
2840 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2842 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2845 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2848 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2850 int64_t pos = avio_tell(pb);
2853 avio_wb32(pb, 0); /* size placeholder */
2854 ffio_wfourcc(pb, "tfra");
2855 avio_w8(pb, 1); /* version */
2858 avio_wb32(pb, track->track_id);
2859 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2860 avio_wb32(pb, track->nb_frag_info);
2861 for (i = 0; i < track->nb_frag_info; i++) {
2862 avio_wb64(pb, track->frag_info[i].time);
2863 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2864 avio_w8(pb, 1); /* traf number */
2865 avio_w8(pb, 1); /* trun number */
2866 avio_w8(pb, 1); /* sample number */
2869 return update_size(pb, pos);
2872 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2874 int64_t pos = avio_tell(pb);
2877 avio_wb32(pb, 0); /* size placeholder */
2878 ffio_wfourcc(pb, "mfra");
2879 /* An empty mfra atom is enough to indicate to the publishing point that
2880 * the stream has ended. */
2881 if (mov->flags & FF_MOV_FLAG_ISML)
2882 return update_size(pb, pos);
2884 for (i = 0; i < mov->nb_streams; i++) {
2885 MOVTrack *track = &mov->tracks[i];
2886 if (track->nb_frag_info)
2887 mov_write_tfra_tag(pb, track);
2891 ffio_wfourcc(pb, "mfro");
2892 avio_wb32(pb, 0); /* version + flags */
2893 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2895 return update_size(pb, pos);
2898 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2900 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2901 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2903 mov->mdat_pos = avio_tell(pb);
2904 avio_wb32(pb, 0); /* size placeholder*/
2905 ffio_wfourcc(pb, "mdat");
2909 /* TODO: This needs to be more general */
2910 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2912 MOVMuxContext *mov = s->priv_data;
2913 int64_t pos = avio_tell(pb);
2914 int has_h264 = 0, has_video = 0;
2918 for (i = 0; i < s->nb_streams; i++) {
2919 AVStream *st = s->streams[i];
2920 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2922 if (st->codec->codec_id == AV_CODEC_ID_H264)
2926 avio_wb32(pb, 0); /* size */
2927 ffio_wfourcc(pb, "ftyp");
2929 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2930 ffio_wfourcc(pb, mov->major_brand);
2931 else if (mov->mode == MODE_3GP) {
2932 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2933 minor = has_h264 ? 0x100 : 0x200;
2934 } else if (mov->mode & MODE_3G2) {
2935 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2936 minor = has_h264 ? 0x20000 : 0x10000;
2937 } else if (mov->mode == MODE_PSP)
2938 ffio_wfourcc(pb, "MSNV");
2939 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2940 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2941 else if (mov->mode == MODE_MP4)
2942 ffio_wfourcc(pb, "isom");
2943 else if (mov->mode == MODE_IPOD)
2944 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2945 else if (mov->mode == MODE_ISM)
2946 ffio_wfourcc(pb, "isml");
2947 else if (mov->mode == MODE_F4V)
2948 ffio_wfourcc(pb, "f4v ");
2950 ffio_wfourcc(pb, "qt ");
2952 avio_wb32(pb, minor);
2954 if (mov->mode == MODE_MOV)
2955 ffio_wfourcc(pb, "qt ");
2956 else if (mov->mode == MODE_ISM) {
2957 ffio_wfourcc(pb, "piff");
2958 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
2959 ffio_wfourcc(pb, "isom");
2960 ffio_wfourcc(pb, "iso2");
2962 ffio_wfourcc(pb, "avc1");
2965 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
2966 // brand. This is compatible with users that don't understand tfdt.
2967 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
2968 ffio_wfourcc(pb, "iso6");
2970 if (mov->mode == MODE_3GP)
2971 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2972 else if (mov->mode & MODE_3G2)
2973 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2974 else if (mov->mode == MODE_PSP)
2975 ffio_wfourcc(pb, "MSNV");
2976 else if (mov->mode == MODE_MP4)
2977 ffio_wfourcc(pb, "mp41");
2979 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_FASTSTART)
2980 ffio_wfourcc(pb, "dash");
2982 return update_size(pb, pos);
2985 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2987 AVStream *video_st = s->streams[0];
2988 AVCodecContext *video_codec = s->streams[0]->codec;
2989 AVCodecContext *audio_codec = s->streams[1]->codec;
2990 int audio_rate = audio_codec->sample_rate;
2991 // TODO: should be avg_frame_rate
2992 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
2993 int audio_kbitrate = audio_codec->bit_rate / 1000;
2994 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2996 avio_wb32(pb, 0x94); /* size */
2997 ffio_wfourcc(pb, "uuid");
2998 ffio_wfourcc(pb, "PROF");
3000 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3001 avio_wb32(pb, 0xbb88695c);
3002 avio_wb32(pb, 0xfac9c740);
3004 avio_wb32(pb, 0x0); /* ? */
3005 avio_wb32(pb, 0x3); /* 3 sections ? */
3007 avio_wb32(pb, 0x14); /* size */
3008 ffio_wfourcc(pb, "FPRF");
3009 avio_wb32(pb, 0x0); /* ? */
3010 avio_wb32(pb, 0x0); /* ? */
3011 avio_wb32(pb, 0x0); /* ? */
3013 avio_wb32(pb, 0x2c); /* size */
3014 ffio_wfourcc(pb, "APRF"); /* audio */
3016 avio_wb32(pb, 0x2); /* TrackID */
3017 ffio_wfourcc(pb, "mp4a");
3018 avio_wb32(pb, 0x20f);
3020 avio_wb32(pb, audio_kbitrate);
3021 avio_wb32(pb, audio_kbitrate);
3022 avio_wb32(pb, audio_rate);
3023 avio_wb32(pb, audio_codec->channels);
3025 avio_wb32(pb, 0x34); /* size */
3026 ffio_wfourcc(pb, "VPRF"); /* video */
3028 avio_wb32(pb, 0x1); /* TrackID */
3029 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3030 ffio_wfourcc(pb, "avc1");
3031 avio_wb16(pb, 0x014D);
3032 avio_wb16(pb, 0x0015);
3034 ffio_wfourcc(pb, "mp4v");
3035 avio_wb16(pb, 0x0000);
3036 avio_wb16(pb, 0x0103);
3039 avio_wb32(pb, video_kbitrate);
3040 avio_wb32(pb, video_kbitrate);
3041 avio_wb32(pb, frame_rate);
3042 avio_wb32(pb, frame_rate);
3043 avio_wb16(pb, video_codec->width);
3044 avio_wb16(pb, video_codec->height);
3045 avio_wb32(pb, 0x010001); /* ? */
3048 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3050 MOVMuxContext *mov = s->priv_data;
3051 mov_write_ftyp_tag(pb,s);
3052 if (mov->mode == MODE_PSP) {
3053 if (s->nb_streams != 2) {
3054 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3055 return AVERROR(EINVAL);
3057 mov_write_uuidprof_tag(pb, s);
3062 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3065 int i, closed_gop = 0;
3067 for (i = 0; i < pkt->size - 4; i++) {
3068 c = (c << 8) + pkt->data[i];
3069 if (c == 0x1b8) { // gop
3070 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3071 } else if (c == 0x100) { // pic
3072 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3073 if (!temp_ref || closed_gop) // I picture is not reordered
3074 *flags = MOV_SYNC_SAMPLE;
3076 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3083 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3085 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3086 int seq = 0, entry = 0;
3087 int key = pkt->flags & AV_PKT_FLAG_KEY;
3088 start = find_next_marker(pkt->data, end);
3089 for (next = start; next < end; start = next) {
3090 next = find_next_marker(start + 4, end);
3091 switch (AV_RB32(start)) {
3092 case VC1_CODE_SEQHDR:
3095 case VC1_CODE_ENTRYPOINT:
3098 case VC1_CODE_SLICE:
3099 trk->vc1_info.slices = 1;
3103 if (!trk->entry && trk->vc1_info.first_packet_seen)
3104 trk->vc1_info.first_frag_written = 1;
3105 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3106 /* First packet in first fragment */
3107 trk->vc1_info.first_packet_seq = seq;
3108 trk->vc1_info.first_packet_entry = entry;
3109 trk->vc1_info.first_packet_seen = 1;
3110 } else if ((seq && !trk->vc1_info.packet_seq) ||
3111 (entry && !trk->vc1_info.packet_entry)) {
3113 for (i = 0; i < trk->entry; i++)
3114 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3115 trk->has_keyframes = 0;
3117 trk->vc1_info.packet_seq = 1;
3119 trk->vc1_info.packet_entry = 1;
3120 if (!trk->vc1_info.first_frag_written) {
3121 /* First fragment */
3122 if ((!seq || trk->vc1_info.first_packet_seq) &&
3123 (!entry || trk->vc1_info.first_packet_entry)) {
3124 /* First packet had the same headers as this one, readd the
3125 * sync sample flag. */
3126 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3127 trk->has_keyframes = 1;
3131 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3133 else if (trk->vc1_info.packet_seq)
3135 else if (trk->vc1_info.packet_entry)
3138 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3139 trk->has_keyframes++;
3143 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3145 MOVMuxContext *mov = s->priv_data;
3150 if (!track->mdat_buf)
3152 if (!mov->mdat_buf) {
3153 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3156 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3157 track->mdat_buf = NULL;
3159 offset = avio_tell(mov->mdat_buf);
3160 avio_write(mov->mdat_buf, buf, buf_size);
3163 for (i = track->entries_flushed; i < track->entry; i++)
3164 track->cluster[i].pos += offset;
3165 track->entries_flushed = track->entry;
3169 static int mov_flush_fragment(AVFormatContext *s)
3171 MOVMuxContext *mov = s->priv_data;
3172 int i, first_track = -1;
3173 int64_t mdat_size = 0;
3175 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3178 for (i = 0; i < mov->nb_streams; i++) {
3179 MOVTrack *track = &mov->tracks[i];
3180 if (track->entry <= 1)
3182 // Sample durations are calculated as the diff of dts values,
3183 // but for the last sample in a fragment, we don't know the dts
3184 // of the first sample in the next fragment, so we have to rely
3185 // on what was set as duration in the AVPacket. Not all callers
3186 // set this though, so we might want to replace it with an
3187 // estimate if it currently is zero.
3188 if (get_cluster_duration(track, track->entry - 1) != 0)
3190 // Use the duration (i.e. dts diff) of the second last sample for
3191 // the last one. This is a wild guess (and fatal if it turns out
3192 // to be too long), but probably the best we can do - having a zero
3193 // duration is bad as well.
3194 track->track_duration += get_cluster_duration(track, track->entry - 2);
3195 track->end_pts += get_cluster_duration(track, track->entry - 2);
3196 if (!mov->missing_duration_warned) {
3197 av_log(s, AV_LOG_WARNING,
3198 "Estimating the duration of the last packet in a "
3199 "fragment, consider setting the duration field in "
3200 "AVPacket instead.\n");
3201 mov->missing_duration_warned = 1;
3205 if (!mov->moov_written) {
3206 int64_t pos = avio_tell(s->pb);
3208 AVIOContext *moov_buf;
3212 for (i = 0; i < mov->nb_streams; i++)
3213 if (!mov->tracks[i].entry)
3215 /* Don't write the initial moov unless all tracks have data */
3216 if (i < mov->nb_streams)
3219 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3221 mov_write_moov_tag(moov_buf, mov, s);
3222 buf_size = ffio_close_null_buf(moov_buf);
3223 for (i = 0; i < mov->nb_streams; i++)
3224 mov->tracks[i].data_offset = pos + buf_size + 8;
3226 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3227 mov_write_identification(s->pb, s);
3228 mov_write_moov_tag(s->pb, mov, s);
3230 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3231 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3232 mov->reserved_header_pos = avio_tell(s->pb);
3234 mov->moov_written = 1;
3238 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3239 mov->mdat_buf = NULL;
3240 avio_wb32(s->pb, buf_size + 8);
3241 ffio_wfourcc(s->pb, "mdat");
3242 avio_write(s->pb, buf, buf_size);
3245 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3246 mov->reserved_header_pos = avio_tell(s->pb);
3248 mov->moov_written = 1;
3250 for (i = 0; i < mov->nb_streams; i++) {
3251 if (mov->tracks[i].entry)
3252 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3253 mov->tracks[i].track_duration -
3254 mov->tracks[i].cluster[0].dts;
3255 mov->tracks[i].entry = 0;
3261 if (mov->frag_interleave) {
3262 for (i = 0; i < mov->nb_streams; i++) {
3263 MOVTrack *track = &mov->tracks[i];
3265 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3271 mdat_size = avio_tell(mov->mdat_buf);
3274 for (i = 0; i < mov->nb_streams; i++) {
3275 MOVTrack *track = &mov->tracks[i];
3276 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3277 track->data_offset = 0;
3279 track->data_offset = mdat_size;
3282 if (track->mdat_buf)
3283 mdat_size += avio_tell(track->mdat_buf);
3284 if (first_track < 0)
3291 for (i = 0; i < mov->nb_streams; i++) {
3292 MOVTrack *track = &mov->tracks[i];
3293 int buf_size, write_moof = 1, moof_tracks = -1;
3295 int64_t duration = 0;
3298 duration = track->start_dts + track->track_duration -
3299 track->cluster[0].dts;
3300 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3301 if (!track->mdat_buf)
3303 mdat_size = avio_tell(track->mdat_buf);
3306 write_moof = i == first_track;
3312 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3315 avio_wb32(s->pb, mdat_size + 8);
3316 ffio_wfourcc(s->pb, "mdat");
3320 track->frag_start += duration;
3322 track->entries_flushed = 0;
3323 if (!mov->frag_interleave) {
3324 if (!track->mdat_buf)
3326 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3327 track->mdat_buf = NULL;
3331 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3332 mov->mdat_buf = NULL;
3335 avio_write(s->pb, buf, buf_size);
3345 static int mov_auto_flush_fragment(AVFormatContext *s)
3347 MOVMuxContext *mov = s->priv_data;
3348 int had_moov = mov->moov_written;
3349 int ret = mov_flush_fragment(s);
3352 // If using delay_moov, the first flush only wrote the moov,
3353 // not the actual moof+mdat pair, thus flush once again.
3354 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3355 ret = mov_flush_fragment(s);
3359 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3361 MOVMuxContext *mov = s->priv_data;
3362 AVIOContext *pb = s->pb;
3363 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3364 AVCodecContext *enc = trk->enc;
3365 unsigned int samples_in_chunk = 0;
3366 int size = pkt->size, ret = 0;
3367 uint8_t *reformatted_data = NULL;
3369 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3371 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3372 if (mov->frag_interleave && mov->fragments > 0) {
3373 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3374 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3379 if (!trk->mdat_buf) {
3380 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3385 if (!mov->mdat_buf) {
3386 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3393 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3394 /* We must find out how many AMR blocks there are in one packet */
3395 static uint16_t packed_size[16] =
3396 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3399 while (len < size && samples_in_chunk < 100) {
3400 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3403 if (samples_in_chunk > 1) {
3404 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3407 } else if (trk->sample_size)
3408 samples_in_chunk = size / trk->sample_size;
3410 samples_in_chunk = 1;
3412 /* copy extradata if it exists */
3413 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3414 trk->vos_len = enc->extradata_size;
3415 trk->vos_data = av_malloc(trk->vos_len);
3416 if (!trk->vos_data) {
3417 ret = AVERROR(ENOMEM);
3420 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3423 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3424 /* from x264 or from bytestream h264 */
3425 /* nal reformating needed */
3426 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3427 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3429 avio_write(pb, reformatted_data, size);
3431 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3433 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3434 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3435 /* extradata is Annex B, assume the bitstream is too and convert it */
3436 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3437 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3438 avio_write(pb, reformatted_data, size);
3440 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3443 avio_write(pb, pkt->data, size);
3446 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3447 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3448 /* copy frame to create needed atoms */
3449 trk->vos_len = size;
3450 trk->vos_data = av_malloc(size);
3451 if (!trk->vos_data) {
3452 ret = AVERROR(ENOMEM);
3455 memcpy(trk->vos_data, pkt->data, size);
3458 if (trk->entry >= trk->cluster_capacity) {
3459 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3460 if (av_reallocp_array(&trk->cluster, new_capacity,
3461 sizeof(*trk->cluster))) {
3462 ret = AVERROR(ENOMEM);
3465 trk->cluster_capacity = new_capacity;
3468 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3469 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3470 trk->cluster[trk->entry].size = size;
3471 trk->cluster[trk->entry].entries = samples_in_chunk;
3472 trk->cluster[trk->entry].dts = pkt->dts;
3473 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3474 if (!trk->frag_discont) {
3475 /* First packet of a new fragment. We already wrote the duration
3476 * of the last packet of the previous fragment based on track_duration,
3477 * which might not exactly match our dts. Therefore adjust the dts
3478 * of this packet to be what the previous packets duration implies. */
3479 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3480 /* We also may have written the pts and the corresponding duration
3481 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3482 * the next fragment. This means the cts of the first sample must
3483 * be the same in all fragments. */
3484 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_FASTSTART)) ||
3485 mov->mode == MODE_ISM)
3486 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3488 /* New fragment, but discontinuous from previous fragments.
3489 * Pretend the duration sum of the earlier fragments is
3490 * pkt->dts - trk->start_dts. */
3491 trk->frag_start = pkt->dts - trk->start_dts;
3492 trk->end_pts = AV_NOPTS_VALUE;
3493 trk->frag_discont = 0;
3496 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3497 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3498 /* Not using edit lists and shifting the first track to start from zero.
3499 * If the other streams start from a later timestamp, we won't be able
3500 * to signal the difference in starting time without an edit list.
3501 * Thus move the timestamp for this first sample to 0, increasing
3502 * its duration instead. */
3503 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3505 if (trk->start_dts == AV_NOPTS_VALUE) {
3506 trk->start_dts = pkt->dts;
3507 if (trk->frag_discont) {
3508 /* Pretend the whole stream started at dts=0, with earlier fragments
3509 * already written, with a duration summing up to pkt->dts. */
3510 trk->frag_start = pkt->dts;
3512 trk->frag_discont = 0;
3513 } else if (pkt->dts && mov->moov_written)
3514 av_log(s, AV_LOG_WARNING,
3515 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3516 "already has been written. Set the delay_moov flag to handle "
3518 pkt->stream_index, pkt->dts);
3520 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3522 if (pkt->pts == AV_NOPTS_VALUE) {
3523 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3524 pkt->pts = pkt->dts;
3526 if (pkt->dts != pkt->pts)
3527 trk->flags |= MOV_TRACK_CTTS;
3528 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3529 trk->cluster[trk->entry].flags = 0;
3530 if (trk->start_cts == AV_NOPTS_VALUE)
3531 trk->start_cts = pkt->pts - pkt->dts;
3532 if (trk->end_pts == AV_NOPTS_VALUE)
3533 trk->end_pts = trk->cluster[trk->entry].dts +
3534 trk->cluster[trk->entry].cts + pkt->duration;
3536 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3537 trk->cluster[trk->entry].cts +
3540 if (enc->codec_id == AV_CODEC_ID_VC1) {
3541 mov_parse_vc1_frame(pkt, trk);
3542 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3543 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3544 trk->entry > 0) { // force sync sample for the first key frame
3545 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3546 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3547 trk->flags |= MOV_TRACK_STPS;
3549 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3551 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3552 trk->has_keyframes++;
3555 trk->sample_count += samples_in_chunk;
3556 mov->mdat_size += size;
3558 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3559 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3560 reformatted_data, size);
3563 av_free(reformatted_data);
3567 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3570 mov_flush_fragment(s);
3573 MOVMuxContext *mov = s->priv_data;
3574 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3575 AVCodecContext *enc = trk->enc;
3576 int64_t frag_duration = 0;
3577 int size = pkt->size;
3580 return 0; /* Discard 0 sized packets */
3582 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3584 for (i = 0; i < s->nb_streams; i++)
3585 mov->tracks[i].frag_discont = 1;
3586 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3590 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3591 s->streams[pkt->stream_index]->time_base,
3593 if ((mov->max_fragment_duration &&
3594 frag_duration >= mov->max_fragment_duration) ||
3595 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3596 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3597 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3598 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3599 if (frag_duration >= mov->min_fragment_duration) {
3600 // Set the duration of this track to line up with the next
3601 // sample in this track. This avoids relying on AVPacket
3602 // duration, but only helps for this particular track, not
3603 // for the other ones that are flushed at the same time.
3604 trk->track_duration = pkt->dts - trk->start_dts;
3605 trk->end_pts = pkt->pts;
3606 mov_auto_flush_fragment(s);
3610 return ff_mov_write_packet(s, pkt);
3614 // QuickTime chapters involve an additional text track with the chapter names
3615 // as samples, and a tref pointing from the other tracks to the chapter one.
3616 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3618 MOVMuxContext *mov = s->priv_data;
3619 MOVTrack *track = &mov->tracks[tracknum];
3620 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3622 // These properties are required to make QT recognize the chapter track
3623 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3625 track->mode = mov->mode;
3626 track->tag = MKTAG('t','e','x','t');
3627 track->timescale = MOV_TIMESCALE;
3628 track->enc = avcodec_alloc_context3(NULL);
3630 return AVERROR(ENOMEM);
3631 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3632 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3633 if (!track->enc->extradata)
3634 return AVERROR(ENOMEM);
3635 track->enc->extradata_size = sizeof(chapter_properties);
3636 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3638 for (i = 0; i < s->nb_chapters; i++) {
3639 AVChapter *c = s->chapters[i];
3640 AVDictionaryEntry *t;
3642 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3643 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3644 pkt.duration = end - pkt.dts;
3646 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3647 const char encd[12] = {
3648 0x00, 0x00, 0x00, 0x0C,
3650 0x00, 0x00, 0x01, 0x00 };
3651 len = strlen(t->value);
3652 pkt.size = len + 2 + 12;
3653 pkt.data = av_malloc(pkt.size);
3655 return AVERROR(ENOMEM);
3656 AV_WB16(pkt.data, len);
3657 memcpy(pkt.data + 2, t->value, len);
3658 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3659 ff_mov_write_packet(s, &pkt);
3660 av_freep(&pkt.data);
3668 * st->disposition controls the "enabled" flag in the tkhd tag.
3669 * QuickTime will not play a track if it is not enabled. So make sure
3670 * that one track of each type (audio, video, subtitle) is enabled.
3672 * Subtitles are special. For audio and video, setting "enabled" also
3673 * makes the track "default" (i.e. it is rendered when played). For
3674 * subtitles, an "enabled" subtitle is not rendered by default, but
3675 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3678 static void enable_tracks(AVFormatContext *s)
3680 MOVMuxContext *mov = s->priv_data;
3682 int enabled[AVMEDIA_TYPE_NB];
3683 int first[AVMEDIA_TYPE_NB];
3685 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3690 for (i = 0; i < s->nb_streams; i++) {
3691 AVStream *st = s->streams[i];
3693 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3694 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3697 if (first[st->codec->codec_type] < 0)
3698 first[st->codec->codec_type] = i;
3699 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3700 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3701 enabled[st->codec->codec_type]++;
3705 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3707 case AVMEDIA_TYPE_VIDEO:
3708 case AVMEDIA_TYPE_AUDIO:
3709 case AVMEDIA_TYPE_SUBTITLE:
3711 mov->per_stream_grouping = 1;
3712 if (!enabled[i] && first[i] >= 0)
3713 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3719 static void mov_free(AVFormatContext *s)
3721 MOVMuxContext *mov = s->priv_data;
3724 if (mov->chapter_track) {
3725 if (mov->tracks[mov->chapter_track].enc)
3726 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3727 av_freep(&mov->tracks[mov->chapter_track].enc);
3730 for (i = 0; i < mov->nb_streams; i++) {
3731 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3732 ff_mov_close_hinting(&mov->tracks[i]);
3733 av_freep(&mov->tracks[i].cluster);
3734 av_freep(&mov->tracks[i].frag_info);
3736 if (mov->tracks[i].vos_len)
3737 av_free(mov->tracks[i].vos_data);
3740 av_freep(&mov->tracks);
3743 static uint32_t rgb_to_yuv(uint32_t rgb)
3748 r = (rgb >> 16) & 0xFF;
3749 g = (rgb >> 8) & 0xFF;
3752 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3753 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3754 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3756 return (y << 16) | (cr << 8) | cb;
3759 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3762 int i, width = 720, height = 480;
3763 int have_palette = 0, have_size = 0;
3764 uint32_t palette[16];
3765 char *cur = st->codec->extradata;
3767 while (cur && *cur) {
3768 if (strncmp("palette:", cur, 8) == 0) {
3770 count = sscanf(cur + 8,
3771 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3772 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3773 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3774 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3775 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3776 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3777 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3778 &palette[12], &palette[13], &palette[14], &palette[15]);
3780 for (i = 0; i < count; i++) {
3781 palette[i] = rgb_to_yuv(palette[i]);
3784 } else if (!strncmp("size:", cur, 5)) {
3785 sscanf(cur + 5, "%dx%d", &width, &height);
3788 if (have_palette && have_size)
3790 cur += strcspn(cur, "\n\r");
3791 cur += strspn(cur, "\n\r");
3794 track->vos_data = av_malloc(16*4);
3795 if (!track->vos_data)
3796 return AVERROR(ENOMEM);
3797 for (i = 0; i < 16; i++) {
3798 AV_WB32(track->vos_data + i * 4, palette[i]);
3800 track->vos_len = 16 * 4;
3802 st->codec->width = width;
3803 st->codec->height = track->height = height;
3808 static int mov_write_header(AVFormatContext *s)
3810 AVIOContext *pb = s->pb;
3811 MOVMuxContext *mov = s->priv_data;
3812 AVDictionaryEntry *t;
3813 int i, ret, hint_track = 0;
3817 /* Default mode == MP4 */
3818 mov->mode = MODE_MP4;
3821 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3822 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3823 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3824 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3825 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3826 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3827 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3830 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3831 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3833 /* Set the FRAGMENT flag if any of the fragmentation methods are
3835 if (mov->max_fragment_duration || mov->max_fragment_size ||
3836 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3837 FF_MOV_FLAG_FRAG_KEYFRAME |
3838 FF_MOV_FLAG_FRAG_CUSTOM))
3839 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3841 /* Set other implicit flags immediately */
3842 if (mov->mode == MODE_ISM)
3843 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3844 FF_MOV_FLAG_FRAGMENT;
3845 if (mov->flags & FF_MOV_FLAG_DASH)
3846 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
3847 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
3849 if (mov->use_editlist < 0) {
3850 mov->use_editlist = 1;
3851 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3852 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3853 // If we can avoid needing an edit list by shifting the
3854 // tracks, prefer that over (trying to) write edit lists
3855 // in fragmented output.
3856 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3857 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3858 mov->use_editlist = 0;
3861 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
3862 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
3863 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
3865 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3866 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3868 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
3869 * if the latter is set that's enough and omit_tfhd_offset doesn't
3870 * add anything extra on top of that. */
3871 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3872 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3873 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
3875 if (mov->frag_interleave &&
3876 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
3877 av_log(s, AV_LOG_ERROR,
3878 "Sample interleaving in fragments is mutually exclusive with "
3879 "omit_tfhd_offset and separate_moof\n");
3880 return AVERROR(EINVAL);
3883 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3884 * is enabled, we don't support non-seekable output at all. */
3885 if (!s->pb->seekable &&
3886 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3887 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3888 return AVERROR(EINVAL);
3892 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3893 if ((ret = mov_write_identification(pb, s)) < 0)
3897 mov->nb_streams = s->nb_streams;
3898 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3899 mov->chapter_track = mov->nb_streams++;
3901 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3902 /* Add hint tracks for each audio and video stream */
3903 hint_track = mov->nb_streams;
3904 for (i = 0; i < s->nb_streams; i++) {
3905 AVStream *st = s->streams[i];
3906 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3907 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3913 // Reserve an extra stream for chapters for the case where chapters
3914 // are written in the trailer
3915 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3917 return AVERROR(ENOMEM);
3919 for (i = 0; i < s->nb_streams; i++) {
3920 AVStream *st= s->streams[i];
3921 MOVTrack *track= &mov->tracks[i];
3922 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3925 track->enc = st->codec;
3926 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3927 if (track->language < 0)
3928 track->language = 0;
3929 track->mode = mov->mode;
3930 track->tag = mov_find_codec_tag(s, track);
3932 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3933 "codec not currently supported in container\n", i);
3936 /* If hinting of this track is enabled by a later hint track,
3937 * this is updated. */
3938 track->hint_track = -1;
3939 track->start_dts = AV_NOPTS_VALUE;
3940 track->start_cts = AV_NOPTS_VALUE;
3941 track->end_pts = AV_NOPTS_VALUE;
3942 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3943 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3944 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3945 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3946 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3947 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3950 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3952 track->timescale = st->time_base.den;
3953 if (track->mode == MODE_MOV && track->timescale > 100000)
3954 av_log(s, AV_LOG_WARNING,
3955 "WARNING codec timebase is very high. If duration is too long,\n"
3956 "file may not be playable by quicktime. Specify a shorter timebase\n"
3957 "or choose different container.\n");
3958 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3959 track->timescale = st->codec->sample_rate;
3960 /* set sample_size for PCM and ADPCM */
3961 if (av_get_bits_per_sample(st->codec->codec_id) ||
3962 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3963 if (!st->codec->block_align) {
3964 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3967 track->sample_size = st->codec->block_align;
3969 /* set audio_vbr for compressed audio */
3970 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3971 track->audio_vbr = 1;
3973 if (track->mode != MODE_MOV &&
3974 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3975 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3976 i, track->enc->sample_rate);
3979 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3980 track->timescale = st->time_base.den;
3981 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3982 track->timescale = st->time_base.den;
3985 track->height = st->codec->height;
3986 /* The ism specific timescale isn't mandatory, but is assumed by
3987 * some tools, such as mp4split. */
3988 if (mov->mode == MODE_ISM)
3989 track->timescale = 10000000;
3991 avpriv_set_pts_info(st, 64, 1, track->timescale);
3993 /* copy extradata if it exists */
3994 if (st->codec->extradata_size) {
3995 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
3996 mov_create_dvd_sub_decoder_specific_info(track, st);
3998 track->vos_len = st->codec->extradata_size;
3999 track->vos_data = av_malloc(track->vos_len);
4000 if (!track->vos_data)
4002 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4009 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4010 /* If no fragmentation options have been set, set a default. */
4011 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4012 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4013 !mov->max_fragment_duration && !mov->max_fragment_size)
4014 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4016 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4017 mov->reserved_header_pos = avio_tell(pb);
4018 mov_write_mdat_tag(pb, mov);
4021 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4022 mov->time = ff_iso8601_to_unix_time(t->value);
4024 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4026 if (mov->chapter_track)
4027 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4030 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4031 /* Initialize the hint tracks for each audio and video stream */
4032 for (i = 0; i < s->nb_streams; i++) {
4033 AVStream *st = s->streams[i];
4034 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4035 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4036 ff_mov_init_hinting(s, hint_track, i);
4044 if (mov->flags & FF_MOV_FLAG_ISML)
4045 mov_write_isml_manifest(pb, mov);
4047 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4048 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4049 mov_write_moov_tag(pb, mov, s);
4050 mov->moov_written = 1;
4051 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4052 mov->reserved_header_pos = avio_tell(pb);
4061 static int get_moov_size(AVFormatContext *s)
4064 AVIOContext *moov_buf;
4065 MOVMuxContext *mov = s->priv_data;
4067 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4069 mov_write_moov_tag(moov_buf, mov, s);
4070 return ffio_close_null_buf(moov_buf);
4073 static int get_sidx_size(AVFormatContext *s)
4077 MOVMuxContext *mov = s->priv_data;
4079 if ((ret = ffio_open_null_buf(&buf)) < 0)
4081 mov_write_sidx_tags(buf, mov, -1, 0);
4082 return ffio_close_null_buf(buf);
4086 * This function gets the moov size if moved to the top of the file: the chunk
4087 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4088 * entries) when the moov is moved to the beginning, so the size of the moov
4089 * would change. It also updates the chunk offset tables.
4091 static int compute_moov_size(AVFormatContext *s)
4093 int i, moov_size, moov_size2;
4094 MOVMuxContext *mov = s->priv_data;
4096 moov_size = get_moov_size(s);
4100 for (i = 0; i < mov->nb_streams; i++)
4101 mov->tracks[i].data_offset += moov_size;
4103 moov_size2 = get_moov_size(s);
4107 /* if the size changed, we just switched from stco to co64 and need to
4108 * update the offsets */
4109 if (moov_size2 != moov_size)
4110 for (i = 0; i < mov->nb_streams; i++)
4111 mov->tracks[i].data_offset += moov_size2 - moov_size;
4116 static int compute_sidx_size(AVFormatContext *s)
4119 MOVMuxContext *mov = s->priv_data;
4121 sidx_size = get_sidx_size(s);
4125 for (i = 0; i < mov->nb_streams; i++)
4126 mov->tracks[i].data_offset += sidx_size;
4131 static int shift_data(AVFormatContext *s)
4133 int ret = 0, moov_size;
4134 MOVMuxContext *mov = s->priv_data;
4135 int64_t pos, pos_end = avio_tell(s->pb);
4136 uint8_t *buf, *read_buf[2];
4137 int read_buf_id = 0;
4139 AVIOContext *read_pb;
4141 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4142 moov_size = compute_sidx_size(s);
4144 moov_size = compute_moov_size(s);
4148 buf = av_malloc(moov_size * 2);
4150 return AVERROR(ENOMEM);
4152 read_buf[1] = buf + moov_size;
4154 /* Shift the data: the AVIO context of the output can only be used for
4155 * writing, so we re-open the same output, but for reading. It also avoids
4156 * a read/seek/write/seek back and forth. */
4158 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
4160 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4161 "the second pass (faststart)\n", s->filename);
4165 /* mark the end of the shift to up to the last data we wrote, and get ready
4167 pos_end = avio_tell(s->pb);
4168 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4170 /* start reading at where the new moov will be placed */
4171 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4172 pos = avio_tell(read_pb);
4174 #define READ_BLOCK do { \
4175 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4179 /* shift data by chunk of at most moov_size */
4184 n = read_size[read_buf_id];
4187 avio_write(s->pb, read_buf[read_buf_id], n);
4189 } while (pos < pos_end);
4190 avio_close(read_pb);
4197 static int mov_write_trailer(AVFormatContext *s)
4199 MOVMuxContext *mov = s->priv_data;
4200 AVIOContext *pb = s->pb;
4205 // If there were no chapters when the header was written, but there
4206 // are chapters now, write them in the trailer. This only works
4207 // when we are not doing fragments.
4208 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4209 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4210 mov->chapter_track = mov->nb_streams++;
4211 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4216 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4217 moov_pos = avio_tell(pb);
4219 /* Write size of mdat tag */
4220 if (mov->mdat_size + 8 <= UINT32_MAX) {
4221 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4222 avio_wb32(pb, mov->mdat_size + 8);
4224 /* overwrite 'wide' placeholder atom */
4225 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4226 /* special value: real atom size will be 64 bit value after
4229 ffio_wfourcc(pb, "mdat");
4230 avio_wb64(pb, mov->mdat_size + 16);
4232 avio_seek(pb, moov_pos, SEEK_SET);
4234 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4235 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4236 res = shift_data(s);
4238 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4239 mov_write_moov_tag(pb, mov, s);
4242 mov_write_moov_tag(pb, mov, s);
4245 mov_auto_flush_fragment(s);
4246 for (i = 0; i < mov->nb_streams; i++)
4247 mov->tracks[i].data_offset = 0;
4248 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4249 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4250 res = shift_data(s);
4252 int64_t end = avio_tell(pb);
4253 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4254 mov_write_sidx_tags(pb, mov, -1, 0);
4255 avio_seek(pb, end, SEEK_SET);
4256 mov_write_mfra_tag(pb, mov);
4259 mov_write_mfra_tag(pb, mov);
4269 #if CONFIG_MOV_MUXER
4271 AVOutputFormat ff_mov_muxer = {
4273 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4274 .extensions = "mov",
4275 .priv_data_size = sizeof(MOVMuxContext),
4276 .audio_codec = AV_CODEC_ID_AAC,
4277 .video_codec = CONFIG_LIBX264_ENCODER ?
4278 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4279 .write_header = mov_write_header,
4280 .write_packet = mov_write_packet,
4281 .write_trailer = mov_write_trailer,
4282 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4283 .codec_tag = (const AVCodecTag* const []){
4284 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4286 .priv_class = &mov_muxer_class,
4289 #if CONFIG_TGP_MUXER
4291 AVOutputFormat ff_tgp_muxer = {
4293 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4294 .extensions = "3gp",
4295 .priv_data_size = sizeof(MOVMuxContext),
4296 .audio_codec = AV_CODEC_ID_AMR_NB,
4297 .video_codec = AV_CODEC_ID_H263,
4298 .write_header = mov_write_header,
4299 .write_packet = mov_write_packet,
4300 .write_trailer = mov_write_trailer,
4301 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4302 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4303 .priv_class = &tgp_muxer_class,
4306 #if CONFIG_MP4_MUXER
4308 AVOutputFormat ff_mp4_muxer = {
4310 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4311 .mime_type = "application/mp4",
4312 .extensions = "mp4",
4313 .priv_data_size = sizeof(MOVMuxContext),
4314 .audio_codec = AV_CODEC_ID_AAC,
4315 .video_codec = CONFIG_LIBX264_ENCODER ?
4316 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4317 .write_header = mov_write_header,
4318 .write_packet = mov_write_packet,
4319 .write_trailer = mov_write_trailer,
4320 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4321 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4322 .priv_class = &mp4_muxer_class,
4325 #if CONFIG_PSP_MUXER
4327 AVOutputFormat ff_psp_muxer = {
4329 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4330 .extensions = "mp4,psp",
4331 .priv_data_size = sizeof(MOVMuxContext),
4332 .audio_codec = AV_CODEC_ID_AAC,
4333 .video_codec = CONFIG_LIBX264_ENCODER ?
4334 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4335 .write_header = mov_write_header,
4336 .write_packet = mov_write_packet,
4337 .write_trailer = mov_write_trailer,
4338 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4339 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4340 .priv_class = &psp_muxer_class,
4343 #if CONFIG_TG2_MUXER
4345 AVOutputFormat ff_tg2_muxer = {
4347 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4348 .extensions = "3g2",
4349 .priv_data_size = sizeof(MOVMuxContext),
4350 .audio_codec = AV_CODEC_ID_AMR_NB,
4351 .video_codec = AV_CODEC_ID_H263,
4352 .write_header = mov_write_header,
4353 .write_packet = mov_write_packet,
4354 .write_trailer = mov_write_trailer,
4355 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4356 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4357 .priv_class = &tg2_muxer_class,
4360 #if CONFIG_IPOD_MUXER
4362 AVOutputFormat ff_ipod_muxer = {
4364 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4365 .mime_type = "application/mp4",
4366 .extensions = "m4v,m4a",
4367 .priv_data_size = sizeof(MOVMuxContext),
4368 .audio_codec = AV_CODEC_ID_AAC,
4369 .video_codec = AV_CODEC_ID_H264,
4370 .write_header = mov_write_header,
4371 .write_packet = mov_write_packet,
4372 .write_trailer = mov_write_trailer,
4373 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4374 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4375 .priv_class = &ipod_muxer_class,
4378 #if CONFIG_ISMV_MUXER
4380 AVOutputFormat ff_ismv_muxer = {
4382 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4383 .mime_type = "application/mp4",
4384 .extensions = "ismv,isma",
4385 .priv_data_size = sizeof(MOVMuxContext),
4386 .audio_codec = AV_CODEC_ID_AAC,
4387 .video_codec = AV_CODEC_ID_H264,
4388 .write_header = mov_write_header,
4389 .write_packet = mov_write_packet,
4390 .write_trailer = mov_write_trailer,
4391 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4392 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4393 .priv_class = &ismv_muxer_class,
4396 #if CONFIG_F4V_MUXER
4398 AVOutputFormat ff_f4v_muxer = {
4400 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4401 .mime_type = "application/f4v",
4402 .extensions = "f4v",
4403 .priv_data_size = sizeof(MOVMuxContext),
4404 .audio_codec = AV_CODEC_ID_AAC,
4405 .video_codec = AV_CODEC_ID_H264,
4406 .write_header = mov_write_header,
4407 .write_packet = mov_write_packet,
4408 .write_trailer = mov_write_trailer,
4409 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4410 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4411 .priv_class = &f4v_muxer_class,