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 { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
67 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "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},
70 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71 { "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},
72 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
73 { "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},
74 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
75 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
76 { "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},
77 { "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 },
81 #define MOV_CLASS(flavor)\
82 static const AVClass flavor ## _muxer_class = {\
83 .class_name = #flavor " muxer",\
84 .item_name = av_default_item_name,\
86 .version = LIBAVUTIL_VERSION_INT,\
89 static int utf8len(const uint8_t *b)
94 GET_UTF8(val, *b++, return -1;)
100 //FIXME support 64 bit variant with wide placeholders
101 static int64_t update_size(AVIOContext *pb, int64_t pos)
103 int64_t curpos = avio_tell(pb);
104 avio_seek(pb, pos, SEEK_SET);
105 avio_wb32(pb, curpos - pos); /* rewrite size */
106 avio_seek(pb, curpos, SEEK_SET);
111 static int co64_required(const MOVTrack *track)
113 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
118 /* Chunk offset atom */
119 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
122 int mode64 = co64_required(track); // use 32 bit size variant if possible
123 int64_t pos = avio_tell(pb);
124 avio_wb32(pb, 0); /* size */
126 ffio_wfourcc(pb, "co64");
128 ffio_wfourcc(pb, "stco");
129 avio_wb32(pb, 0); /* version & flags */
130 avio_wb32(pb, track->entry); /* entry count */
131 for (i = 0; i < track->entry; i++) {
133 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
135 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
137 return update_size(pb, pos);
140 /* Sample size atom */
141 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
144 int i, j, entries = 0, tst = -1, oldtst = -1;
146 int64_t pos = avio_tell(pb);
147 avio_wb32(pb, 0); /* size */
148 ffio_wfourcc(pb, "stsz");
149 avio_wb32(pb, 0); /* version & flags */
151 for (i = 0; i < track->entry; i++) {
152 tst = track->cluster[i].size / track->cluster[i].entries;
153 if (oldtst != -1 && tst != oldtst)
156 entries += track->cluster[i].entries;
158 if (equalChunks && track->entry) {
159 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
160 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
161 avio_wb32(pb, sSize); // sample size
162 avio_wb32(pb, entries); // sample count
164 avio_wb32(pb, 0); // sample size
165 avio_wb32(pb, entries); // sample count
166 for (i = 0; i < track->entry; i++) {
167 for (j = 0; j < track->cluster[i].entries; j++) {
168 avio_wb32(pb, track->cluster[i].size /
169 track->cluster[i].entries);
173 return update_size(pb, pos);
176 /* Sample to chunk atom */
177 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
179 int index = 0, oldval = -1, i;
180 int64_t entryPos, curpos;
182 int64_t pos = avio_tell(pb);
183 avio_wb32(pb, 0); /* size */
184 ffio_wfourcc(pb, "stsc");
185 avio_wb32(pb, 0); // version & flags
186 entryPos = avio_tell(pb);
187 avio_wb32(pb, track->entry); // entry count
188 for (i = 0; i < track->entry; i++) {
189 if (oldval != track->cluster[i].samples_in_chunk) {
190 avio_wb32(pb, i + 1); // first chunk
191 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
192 avio_wb32(pb, 0x1); // sample description index
193 oldval = track->cluster[i].samples_in_chunk;
197 curpos = avio_tell(pb);
198 avio_seek(pb, entryPos, SEEK_SET);
199 avio_wb32(pb, index); // rewrite size
200 avio_seek(pb, curpos, SEEK_SET);
202 return update_size(pb, pos);
205 /* Sync sample atom */
206 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
208 int64_t curpos, entryPos;
210 int64_t pos = avio_tell(pb);
211 avio_wb32(pb, 0); // size
212 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
213 avio_wb32(pb, 0); // version & flags
214 entryPos = avio_tell(pb);
215 avio_wb32(pb, track->entry); // entry count
216 for (i = 0; i < track->entry; i++) {
217 if (track->cluster[i].flags & flag) {
218 avio_wb32(pb, i + 1);
222 curpos = avio_tell(pb);
223 avio_seek(pb, entryPos, SEEK_SET);
224 avio_wb32(pb, index); // rewrite size
225 avio_seek(pb, curpos, SEEK_SET);
226 return update_size(pb, pos);
229 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
231 avio_wb32(pb, 0x11); /* size */
232 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
233 else ffio_wfourcc(pb, "damr");
234 ffio_wfourcc(pb, "FFMP");
235 avio_w8(pb, 0); /* decoder version */
237 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
238 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
239 avio_w8(pb, 0x01); /* Frames per sample */
243 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
248 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
250 if (track->vos_len < 7)
254 ffio_wfourcc(pb, "dac3");
256 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
257 fscod = get_bits(&gbc, 2);
258 frmsizecod = get_bits(&gbc, 6);
259 bsid = get_bits(&gbc, 5);
260 bsmod = get_bits(&gbc, 3);
261 acmod = get_bits(&gbc, 3);
263 skip_bits(&gbc, 2); // dsurmod
265 if ((acmod & 1) && acmod != 1)
266 skip_bits(&gbc, 2); // cmixlev
268 skip_bits(&gbc, 2); // surmixlev
270 lfeon = get_bits1(&gbc);
272 init_put_bits(&pbc, buf, sizeof(buf));
273 put_bits(&pbc, 2, fscod);
274 put_bits(&pbc, 5, bsid);
275 put_bits(&pbc, 3, bsmod);
276 put_bits(&pbc, 3, acmod);
277 put_bits(&pbc, 1, lfeon);
278 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
279 put_bits(&pbc, 5, 0); // reserved
281 flush_put_bits(&pbc);
282 avio_write(pb, buf, sizeof(buf));
288 * This function writes extradata "as is".
289 * Extradata must be formatted like a valid atom (with size and tag).
291 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
293 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
294 return track->enc->extradata_size;
297 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
302 avio_w8(pb, (size >> (7 * i)) | 0x80);
303 avio_w8(pb, size & 0x7F);
306 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
308 AVCPBProperties *props;
309 int64_t pos = avio_tell(pb);
310 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
312 avio_wb32(pb, 0); // size
313 ffio_wfourcc(pb, "esds");
314 avio_wb32(pb, 0); // Version
317 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
318 avio_wb16(pb, track->track_id);
319 avio_w8(pb, 0x00); // flags (= no flags)
321 // DecoderConfig descriptor
322 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
324 // Object type indication
325 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
326 track->enc->codec_id == AV_CODEC_ID_MP3) &&
327 track->enc->sample_rate > 24000)
328 avio_w8(pb, 0x6B); // 11172-3
330 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
332 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
333 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
334 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
335 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
336 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
337 avio_w8(pb, 0x15); // flags (= Audiostream)
339 avio_w8(pb, 0x11); // flags (= Visualstream)
341 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
344 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
346 avio_wb32(pb, props ? FFMAX(props->max_bitrate, props->avg_bitrate) : track->enc->bit_rate); // maxbitrate (FIXME should be max rate in any 1 sec window)
347 if (!props || !props->min_bitrate || props->max_bitrate != props->min_bitrate)
348 avio_wb32(pb, 0); // vbr
350 avio_wb32(pb, props->max_bitrate); // avg bitrate
352 if (track->vos_len) {
353 // DecoderSpecific info descriptor
354 put_descr(pb, 0x05, track->vos_len);
355 avio_write(pb, track->vos_data, track->vos_len);
359 put_descr(pb, 0x06, 1);
361 return update_size(pb, pos);
364 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
366 int64_t pos = avio_tell(pb);
368 avio_wl32(pb, track->tag); // store it byteswapped
369 track->enc->codec_tag = av_bswap16(track->tag >> 16);
370 ff_put_wav_header(pb, track->enc);
371 return update_size(pb, pos);
374 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
376 int64_t pos = avio_tell(pb);
378 ffio_wfourcc(pb, "wfex");
379 ff_put_wav_header(pb, track->enc);
380 return update_size(pb, pos);
383 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
385 uint32_t layout_tag, bitmap;
386 int64_t pos = avio_tell(pb);
388 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
389 track->enc->channel_layout,
392 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
393 "lack of channel information\n");
397 avio_wb32(pb, 0); // Size
398 ffio_wfourcc(pb, "chan"); // Type
399 avio_w8(pb, 0); // Version
400 avio_wb24(pb, 0); // Flags
401 avio_wb32(pb, layout_tag); // mChannelLayoutTag
402 avio_wb32(pb, bitmap); // mChannelBitmap
403 avio_wb32(pb, 0); // mNumberChannelDescriptions
405 return update_size(pb, pos);
408 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
410 int64_t pos = avio_tell(pb);
412 avio_wb32(pb, 0); /* size */
413 ffio_wfourcc(pb, "wave");
415 avio_wb32(pb, 12); /* size */
416 ffio_wfourcc(pb, "frma");
417 avio_wl32(pb, track->tag);
419 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
420 /* useless atom needed by mplayer, ipod, not needed by quicktime */
421 avio_wb32(pb, 12); /* size */
422 ffio_wfourcc(pb, "mp4a");
424 mov_write_esds_tag(pb, track);
425 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
426 mov_write_amr_tag(pb, track);
427 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
428 mov_write_ac3_tag(pb, track);
429 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
430 mov_write_extradata_tag(pb, track);
431 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
432 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
433 mov_write_ms_tag(pb, track);
436 avio_wb32(pb, 8); /* size */
437 avio_wb32(pb, 0); /* null tag */
439 return update_size(pb, pos);
442 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
445 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
446 int unescaped_size, seq_found = 0;
447 int level = 0, interlace = 0;
448 int packet_seq = track->vc1_info.packet_seq;
449 int packet_entry = track->vc1_info.packet_entry;
450 int slices = track->vc1_info.slices;
453 if (track->start_dts == AV_NOPTS_VALUE) {
454 /* No packets written yet, vc1_info isn't authoritative yet. */
455 /* Assume inline sequence and entry headers. */
456 packet_seq = packet_entry = 1;
457 av_log(NULL, AV_LOG_WARNING,
458 "moov atom written before any packets, unable to write correct "
459 "dvc1 atom. Set the delay_moov flag to fix this.\n");
462 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
464 return AVERROR(ENOMEM);
465 start = find_next_marker(track->vos_data, end);
466 for (next = start; next < end; start = next) {
469 next = find_next_marker(start + 4, end);
470 size = next - start - 4;
473 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
474 init_get_bits(&gb, unescaped, 8 * unescaped_size);
475 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
476 int profile = get_bits(&gb, 2);
477 if (profile != PROFILE_ADVANCED) {
479 return AVERROR(ENOSYS);
482 level = get_bits(&gb, 3);
483 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
485 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
486 skip_bits(&gb, 1); /* broadcast */
487 interlace = get_bits1(&gb);
488 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
493 return AVERROR(ENOSYS);
496 init_put_bits(&pbc, buf, 7);
497 /* VC1DecSpecStruc */
498 put_bits(&pbc, 4, 12); /* profile - advanced */
499 put_bits(&pbc, 3, level);
500 put_bits(&pbc, 1, 0); /* reserved */
501 /* VC1AdvDecSpecStruc */
502 put_bits(&pbc, 3, level);
503 put_bits(&pbc, 1, 0); /* cbr */
504 put_bits(&pbc, 6, 0); /* reserved */
505 put_bits(&pbc, 1, !interlace); /* no interlace */
506 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
507 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
508 put_bits(&pbc, 1, !slices); /* no slice code */
509 put_bits(&pbc, 1, 0); /* no bframe */
510 put_bits(&pbc, 1, 0); /* reserved */
513 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
514 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
516 put_bits32(&pbc, 0xffffffff);
518 flush_put_bits(&pbc);
525 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
527 uint8_t buf[7] = { 0 };
530 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
533 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
534 ffio_wfourcc(pb, "dvc1");
535 avio_write(pb, buf, sizeof(buf));
536 avio_write(pb, track->vos_data, track->vos_len);
541 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
543 avio_wb32(pb, track->vos_len + 8);
544 ffio_wfourcc(pb, "glbl");
545 avio_write(pb, track->vos_data, track->vos_len);
546 return 8 + track->vos_len;
550 * Compute flags for 'lpcm' tag.
551 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
553 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
556 case AV_CODEC_ID_PCM_F32BE:
557 case AV_CODEC_ID_PCM_F64BE:
559 case AV_CODEC_ID_PCM_F32LE:
560 case AV_CODEC_ID_PCM_F64LE:
562 case AV_CODEC_ID_PCM_U8:
564 case AV_CODEC_ID_PCM_S16BE:
565 case AV_CODEC_ID_PCM_S24BE:
566 case AV_CODEC_ID_PCM_S32BE:
568 case AV_CODEC_ID_PCM_S8:
569 case AV_CODEC_ID_PCM_S16LE:
570 case AV_CODEC_ID_PCM_S24LE:
571 case AV_CODEC_ID_PCM_S32LE:
578 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
582 if (cluster_idx >= track->entry)
585 if (cluster_idx + 1 == track->entry)
586 next_dts = track->track_duration + track->start_dts;
588 next_dts = track->cluster[cluster_idx + 1].dts;
590 return next_dts - track->cluster[cluster_idx].dts;
593 static int get_samples_per_packet(MOVTrack *track)
595 int i, first_duration;
597 /* use 1 for raw PCM */
598 if (!track->audio_vbr)
601 /* check to see if duration is constant for all clusters */
604 first_duration = get_cluster_duration(track, 0);
605 for (i = 1; i < track->entry; i++) {
606 if (get_cluster_duration(track, i) != first_duration)
609 return first_duration;
612 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
614 int64_t pos = avio_tell(pb);
616 uint32_t tag = track->tag;
618 if (track->mode == MODE_MOV) {
619 if (mov_get_lpcm_flags(track->enc->codec_id))
620 tag = AV_RL32("lpcm");
624 avio_wb32(pb, 0); /* size */
625 avio_wl32(pb, tag); // store it byteswapped
626 avio_wb32(pb, 0); /* Reserved */
627 avio_wb16(pb, 0); /* Reserved */
628 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
630 /* SoundDescription */
631 avio_wb16(pb, version); /* Version */
632 avio_wb16(pb, 0); /* Revision level */
633 avio_wb32(pb, 0); /* Reserved */
638 avio_wb16(pb, 0xfffe);
640 avio_wb32(pb, 0x00010000);
642 avio_wb64(pb, av_double2int(track->enc->sample_rate));
643 avio_wb32(pb, track->enc->channels);
644 avio_wb32(pb, 0x7F000000);
645 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
646 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
647 avio_wb32(pb, track->sample_size);
648 avio_wb32(pb, get_samples_per_packet(track));
650 /* reserved for mp4/3gp */
655 avio_wb16(pb, 0); /* packet size (= 0) */
656 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
657 track->enc->sample_rate : 0);
658 avio_wb16(pb, 0); /* Reserved */
661 if (track->mode == MODE_MOV &&
662 (track->enc->codec_id == AV_CODEC_ID_AAC ||
663 track->enc->codec_id == AV_CODEC_ID_AC3 ||
664 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
665 track->enc->codec_id == AV_CODEC_ID_ALAC ||
666 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
667 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
668 mov_write_wave_tag(pb, track);
669 else if (track->tag == MKTAG('m','p','4','a'))
670 mov_write_esds_tag(pb, track);
671 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
672 mov_write_amr_tag(pb, track);
673 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
674 mov_write_ac3_tag(pb, track);
675 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
676 mov_write_extradata_tag(pb, track);
677 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
678 mov_write_wfex_tag(pb, track);
679 else if (track->vos_len > 0)
680 mov_write_glbl_tag(pb, track);
682 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
683 mov_write_chan_tag(pb, track);
685 return update_size(pb, pos);
688 static int mov_write_d263_tag(AVIOContext *pb)
690 avio_wb32(pb, 0xf); /* size */
691 ffio_wfourcc(pb, "d263");
692 ffio_wfourcc(pb, "FFMP");
693 avio_w8(pb, 0); /* decoder version */
694 /* FIXME use AVCodecContext level/profile, when encoder will set values */
695 avio_w8(pb, 0xa); /* level */
696 avio_w8(pb, 0); /* profile */
700 /* TODO: No idea about these values */
701 static int mov_write_svq3_tag(AVIOContext *pb)
704 ffio_wfourcc(pb, "SMI ");
705 ffio_wfourcc(pb, "SEQH");
707 avio_wb32(pb, 0xe2c0211d);
708 avio_wb32(pb, 0xc0000000);
713 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
715 int64_t pos = avio_tell(pb);
718 ffio_wfourcc(pb, "avcC");
719 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
720 return update_size(pb, pos);
723 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
725 int64_t pos = avio_tell(pb);
728 ffio_wfourcc(pb, "hvcC");
729 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
730 return update_size(pb, pos);
733 /* also used by all avid codecs (dv, imx, meridien) and their variants */
734 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
737 avio_wb32(pb, 24); /* size */
738 ffio_wfourcc(pb, "ACLR");
739 ffio_wfourcc(pb, "ACLR");
740 ffio_wfourcc(pb, "0001");
741 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
742 avio_wb32(pb, 0); /* unknown */
744 avio_wb32(pb, 24); /* size */
745 ffio_wfourcc(pb, "APRG");
746 ffio_wfourcc(pb, "APRG");
747 ffio_wfourcc(pb, "0001");
748 avio_wb32(pb, 1); /* unknown */
749 avio_wb32(pb, 0); /* unknown */
751 avio_wb32(pb, 120); /* size */
752 ffio_wfourcc(pb, "ARES");
753 ffio_wfourcc(pb, "ARES");
754 ffio_wfourcc(pb, "0001");
755 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
756 avio_wb32(pb, track->enc->width);
757 /* values below are based on samples created with quicktime and avid codecs */
758 if (track->vos_data[5] & 2) { // interlaced
759 avio_wb32(pb, track->enc->height / 2);
760 avio_wb32(pb, 2); /* unknown */
761 avio_wb32(pb, 0); /* unknown */
762 avio_wb32(pb, 4); /* unknown */
764 avio_wb32(pb, track->enc->height);
765 avio_wb32(pb, 1); /* unknown */
766 avio_wb32(pb, 0); /* unknown */
767 if (track->enc->height == 1080)
768 avio_wb32(pb, 5); /* unknown */
770 avio_wb32(pb, 6); /* unknown */
773 for (i = 0; i < 10; i++)
776 /* extra padding for stsd needed */
781 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
783 int tag = track->enc->codec_tag;
785 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
788 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
789 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
790 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
791 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
792 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
793 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
794 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
795 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
796 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
801 static const AVCodecTag codec_ipod_tags[] = {
802 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
803 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
804 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
805 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
806 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
807 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
808 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
809 { AV_CODEC_ID_NONE, 0 },
812 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
814 int tag = track->enc->codec_tag;
816 // keep original tag for subs, ipod supports both formats
817 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
818 (tag == MKTAG('t', 'x', '3', 'g') ||
819 tag == MKTAG('t', 'e', 'x', 't'))))
820 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
822 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
823 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
824 "Quicktime/Ipod might not play the file\n");
829 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
833 if (track->enc->width == 720) /* SD */
834 if (track->enc->height == 480) /* NTSC */
835 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
836 else tag = MKTAG('d','v','c',' ');
837 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
838 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
839 else tag = MKTAG('d','v','p','p');
840 else if (track->enc->height == 720) /* HD 720 line */
841 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
842 else tag = MKTAG('d','v','h','p');
843 else if (track->enc->height == 1080) /* HD 1080 line */
844 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
845 else tag = MKTAG('d','v','h','6');
847 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
854 static const struct {
855 enum AVPixelFormat pix_fmt;
858 } mov_pix_fmt_tags[] = {
859 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
860 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
861 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
862 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
863 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
864 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
865 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
866 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
867 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
868 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
869 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
870 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
871 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
872 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
875 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
877 int tag = track->enc->codec_tag;
880 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
881 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
882 tag = mov_pix_fmt_tags[i].tag;
883 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
891 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
893 int tag = track->enc->codec_tag;
895 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
896 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
897 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
898 track->enc->codec_id == AV_CODEC_ID_H263 ||
899 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
900 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
901 tag = mov_get_dv_codec_tag(s, track);
902 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
903 tag = mov_get_rawvideo_codec_tag(s, track);
904 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
905 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
906 if (!tag) { // if no mac fcc found, try with Microsoft tags
907 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
909 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
910 "the file may be unplayable!\n");
912 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
913 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
914 if (!tag) { // if no mac fcc found, try with Microsoft tags
915 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
917 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
918 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
919 "the file may be unplayable!\n");
922 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
923 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
929 static const AVCodecTag codec_3gp_tags[] = {
930 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
931 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
932 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
933 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
934 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
935 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
936 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
937 { AV_CODEC_ID_NONE, 0 },
940 static const AVCodecTag codec_f4v_tags[] = {
941 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
942 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
943 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
944 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
945 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
946 { AV_CODEC_ID_NONE, 0 },
949 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
953 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
954 tag = mp4_get_codec_tag(s, track);
955 else if (track->mode == MODE_ISM) {
956 tag = mp4_get_codec_tag(s, track);
957 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
958 tag = MKTAG('w', 'm', 'a', ' ');
959 } else if (track->mode == MODE_IPOD)
960 tag = ipod_get_codec_tag(s, track);
961 else if (track->mode & MODE_3GP)
962 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
963 else if (track->mode == MODE_F4V)
964 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
966 tag = mov_get_codec_tag(s, track);
972 * Needed to make file play in iPods running newest firmware
973 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
975 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
978 ffio_wfourcc(pb, "uuid");
979 avio_wb32(pb, 0x6b6840f2);
980 avio_wb32(pb, 0x5f244fc5);
981 avio_wb32(pb, 0xba39a51b);
982 avio_wb32(pb, 0xcf0323f3);
987 static const uint16_t fiel_data[] = {
988 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
991 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
993 unsigned mov_field_order = 0;
994 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
995 mov_field_order = fiel_data[track->enc->field_order];
999 ffio_wfourcc(pb, "fiel");
1000 avio_wb16(pb, mov_field_order);
1004 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1006 int64_t pos = avio_tell(pb);
1007 avio_wb32(pb, 0); /* size */
1008 avio_wl32(pb, track->tag); // store it byteswapped
1009 avio_wb32(pb, 0); /* Reserved */
1010 avio_wb16(pb, 0); /* Reserved */
1011 avio_wb16(pb, 1); /* Data-reference index */
1013 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1014 mov_write_esds_tag(pb, track);
1015 else if (track->enc->extradata_size)
1016 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1018 return update_size(pb, pos);
1021 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1024 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1025 track->enc->sample_aspect_ratio.den, INT_MAX);
1028 ffio_wfourcc(pb, "pasp");
1029 avio_wb32(pb, sar.num);
1030 avio_wb32(pb, sar.den);
1034 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1036 AVDictionaryEntry *encoder;
1037 int64_t pos = avio_tell(pb);
1038 char compressor_name[32] = { 0 };
1040 avio_wb32(pb, 0); /* size */
1041 avio_wl32(pb, track->tag); // store it byteswapped
1042 avio_wb32(pb, 0); /* Reserved */
1043 avio_wb16(pb, 0); /* Reserved */
1044 avio_wb16(pb, 1); /* Data-reference index */
1046 avio_wb16(pb, 0); /* Codec stream version */
1047 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1048 if (track->mode == MODE_MOV) {
1049 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1050 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1051 avio_wb32(pb, 0); /* Temporal Quality */
1052 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1054 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1055 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1058 avio_wb32(pb, 0); /* Reserved */
1059 avio_wb32(pb, 0); /* Reserved */
1060 avio_wb32(pb, 0); /* Reserved */
1062 avio_wb16(pb, track->enc->width); /* Video width */
1063 avio_wb16(pb, track->height); /* Video height */
1064 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1065 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1066 avio_wb32(pb, 0); /* Data size (= 0) */
1067 avio_wb16(pb, 1); /* Frame count (= 1) */
1069 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1070 if (track->mode == MODE_MOV &&
1071 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1072 av_strlcpy(compressor_name, encoder->value, 32);
1073 avio_w8(pb, strlen(compressor_name));
1074 avio_write(pb, compressor_name, 31);
1076 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1077 avio_wb16(pb, track->enc->bits_per_coded_sample);
1079 avio_wb16(pb, 0x18); /* Reserved */
1080 avio_wb16(pb, 0xffff); /* Reserved */
1081 if (track->tag == MKTAG('m','p','4','v'))
1082 mov_write_esds_tag(pb, track);
1083 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1084 mov_write_d263_tag(pb);
1085 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1086 mov_write_svq3_tag(pb);
1087 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1088 mov_write_avid_tag(pb, track);
1089 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1090 mov_write_hvcc_tag(pb, track);
1091 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1092 mov_write_avcc_tag(pb, track);
1093 if (track->mode == MODE_IPOD)
1094 mov_write_uuid_tag_ipod(pb);
1095 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1096 mov_write_fiel_tag(pb, track);
1097 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1098 mov_write_dvc1_tag(pb, track);
1099 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1100 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1101 /* Don't write any potential extradata here - the cropping
1102 * is signalled via the normal width/height fields. */
1103 } else if (track->vos_len > 0)
1104 mov_write_glbl_tag(pb, track);
1106 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1107 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1108 mov_write_pasp_tag(pb, track);
1111 return update_size(pb, pos);
1114 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1116 int64_t pos = avio_tell(pb);
1117 avio_wb32(pb, 0); /* size */
1118 ffio_wfourcc(pb, "rtp ");
1119 avio_wb32(pb, 0); /* Reserved */
1120 avio_wb16(pb, 0); /* Reserved */
1121 avio_wb16(pb, 1); /* Data-reference index */
1123 avio_wb16(pb, 1); /* Hint track version */
1124 avio_wb16(pb, 1); /* Highest compatible version */
1125 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1127 avio_wb32(pb, 12); /* size */
1128 ffio_wfourcc(pb, "tims");
1129 avio_wb32(pb, track->timescale);
1131 return update_size(pb, pos);
1134 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1136 int64_t pos = avio_tell(pb);
1138 avio_wb32(pb, 0); /* size */
1139 ffio_wfourcc(pb, "tmcd"); /* Data format */
1140 avio_wb32(pb, 0); /* Reserved */
1141 avio_wb32(pb, 1); /* Data reference index */
1142 if (track->enc->extradata_size)
1143 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1144 return update_size(pb, pos);
1147 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1149 int64_t pos = avio_tell(pb);
1150 avio_wb32(pb, 0); /* size */
1151 ffio_wfourcc(pb, "stsd");
1152 avio_wb32(pb, 0); /* version & flags */
1153 avio_wb32(pb, 1); /* entry count */
1154 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1155 mov_write_video_tag(pb, track);
1156 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1157 mov_write_audio_tag(pb, track);
1158 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1159 mov_write_subtitle_tag(pb, track);
1160 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1161 mov_write_rtp_tag(pb, track);
1162 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1163 mov_write_tmcd_tag(pb, track);
1164 return update_size(pb, pos);
1167 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1169 MOVStts *ctts_entries;
1170 uint32_t entries = 0;
1174 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1176 return AVERROR(ENOMEM);
1177 ctts_entries[0].count = 1;
1178 ctts_entries[0].duration = track->cluster[0].cts;
1179 for (i = 1; i < track->entry; i++) {
1180 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1181 ctts_entries[entries].count++; /* compress */
1184 ctts_entries[entries].duration = track->cluster[i].cts;
1185 ctts_entries[entries].count = 1;
1188 entries++; /* last one */
1189 atom_size = 16 + (entries * 8);
1190 avio_wb32(pb, atom_size); /* size */
1191 ffio_wfourcc(pb, "ctts");
1192 avio_wb32(pb, 0); /* version & flags */
1193 avio_wb32(pb, entries); /* entry count */
1194 for (i = 0; i < entries; i++) {
1195 avio_wb32(pb, ctts_entries[i].count);
1196 avio_wb32(pb, ctts_entries[i].duration);
1198 av_free(ctts_entries);
1202 /* Time to sample atom */
1203 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1205 MOVStts *stts_entries = NULL;
1206 uint32_t entries = -1;
1210 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1211 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1213 return AVERROR(ENOMEM);
1214 stts_entries[0].count = track->sample_count;
1215 stts_entries[0].duration = 1;
1219 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1221 return AVERROR(ENOMEM);
1223 for (i = 0; i < track->entry; i++) {
1224 int duration = get_cluster_duration(track, i);
1225 if (i && duration == stts_entries[entries].duration) {
1226 stts_entries[entries].count++; /* compress */
1229 stts_entries[entries].duration = duration;
1230 stts_entries[entries].count = 1;
1233 entries++; /* last one */
1235 atom_size = 16 + (entries * 8);
1236 avio_wb32(pb, atom_size); /* size */
1237 ffio_wfourcc(pb, "stts");
1238 avio_wb32(pb, 0); /* version & flags */
1239 avio_wb32(pb, entries); /* entry count */
1240 for (i = 0; i < entries; i++) {
1241 avio_wb32(pb, stts_entries[i].count);
1242 avio_wb32(pb, stts_entries[i].duration);
1244 av_free(stts_entries);
1248 static int mov_write_dref_tag(AVIOContext *pb)
1250 avio_wb32(pb, 28); /* size */
1251 ffio_wfourcc(pb, "dref");
1252 avio_wb32(pb, 0); /* version & flags */
1253 avio_wb32(pb, 1); /* entry count */
1255 avio_wb32(pb, 0xc); /* size */
1256 ffio_wfourcc(pb, "url ");
1257 avio_wb32(pb, 1); /* version & flags */
1262 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1264 int64_t pos = avio_tell(pb);
1265 avio_wb32(pb, 0); /* size */
1266 ffio_wfourcc(pb, "stbl");
1267 mov_write_stsd_tag(pb, track);
1268 mov_write_stts_tag(pb, track);
1269 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1270 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1271 track->has_keyframes && track->has_keyframes < track->entry)
1272 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1273 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1274 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1275 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1276 track->flags & MOV_TRACK_CTTS && track->entry)
1277 mov_write_ctts_tag(pb, track);
1278 mov_write_stsc_tag(pb, track);
1279 mov_write_stsz_tag(pb, track);
1280 mov_write_stco_tag(pb, track);
1281 return update_size(pb, pos);
1284 static int mov_write_dinf_tag(AVIOContext *pb)
1286 int64_t pos = avio_tell(pb);
1287 avio_wb32(pb, 0); /* size */
1288 ffio_wfourcc(pb, "dinf");
1289 mov_write_dref_tag(pb);
1290 return update_size(pb, pos);
1293 static int mov_write_nmhd_tag(AVIOContext *pb)
1296 ffio_wfourcc(pb, "nmhd");
1301 static int mov_write_gmhd_tag(AVIOContext *pb)
1303 avio_wb32(pb, 0x20); /* size */
1304 ffio_wfourcc(pb, "gmhd");
1305 avio_wb32(pb, 0x18); /* gmin size */
1306 ffio_wfourcc(pb, "gmin");/* generic media info */
1307 avio_wb32(pb, 0); /* version & flags */
1308 avio_wb16(pb, 0x40); /* graphics mode = */
1309 avio_wb16(pb, 0x8000); /* opColor (r?) */
1310 avio_wb16(pb, 0x8000); /* opColor (g?) */
1311 avio_wb16(pb, 0x8000); /* opColor (b?) */
1312 avio_wb16(pb, 0); /* balance */
1313 avio_wb16(pb, 0); /* reserved */
1317 static int mov_write_smhd_tag(AVIOContext *pb)
1319 avio_wb32(pb, 16); /* size */
1320 ffio_wfourcc(pb, "smhd");
1321 avio_wb32(pb, 0); /* version & flags */
1322 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1323 avio_wb16(pb, 0); /* reserved */
1327 static int mov_write_vmhd_tag(AVIOContext *pb)
1329 avio_wb32(pb, 0x14); /* size (always 0x14) */
1330 ffio_wfourcc(pb, "vmhd");
1331 avio_wb32(pb, 0x01); /* version & flags */
1332 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1336 static int is_clcp_track(MOVTrack *track)
1338 return track->tag == MKTAG('c','7','0','8') ||
1339 track->tag == MKTAG('c','6','0','8');
1342 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1344 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1345 int64_t pos = avio_tell(pb);
1349 descr = "DataHandler";
1352 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1353 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1355 descr = "VideoHandler";
1356 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1358 descr = "SoundHandler";
1359 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1360 if (track->tag == MKTAG('t','x','3','g')) {
1362 } else if (track->tag == MKTAG('m','p','4','s')) {
1364 } else if (is_clcp_track(track)) {
1369 descr = "SubtitleHandler";
1370 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1372 descr = "HintHandler";
1373 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1375 descr = "TimeCodeHandler";
1378 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1379 track->enc->codec_tag);
1381 av_log(track->enc, AV_LOG_WARNING,
1382 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1383 tag_buf, track->enc->codec_tag);
1386 // hdlr.name is used by some players to identify the content title
1387 // of the track. So if an alternate handler description is
1388 // specified, use it.
1389 AVDictionaryEntry *t;
1390 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1391 if (t && utf8len(t->value))
1396 avio_wb32(pb, 0); /* size */
1397 ffio_wfourcc(pb, "hdlr");
1398 avio_wb32(pb, 0); /* Version & flags */
1399 avio_write(pb, hdlr, 4); /* handler */
1400 ffio_wfourcc(pb, hdlr_type); /* handler type */
1401 avio_wb32(pb, 0); /* reserved */
1402 avio_wb32(pb, 0); /* reserved */
1403 avio_wb32(pb, 0); /* reserved */
1404 if (!track || track->mode == MODE_MOV)
1405 avio_w8(pb, strlen(descr)); /* pascal string */
1406 avio_write(pb, descr, strlen(descr)); /* handler description */
1407 if (track && track->mode != MODE_MOV)
1408 avio_w8(pb, 0); /* c string */
1409 return update_size(pb, pos);
1412 static int mov_write_hmhd_tag(AVIOContext *pb)
1414 /* This atom must be present, but leaving the values at zero
1415 * seems harmless. */
1416 avio_wb32(pb, 28); /* size */
1417 ffio_wfourcc(pb, "hmhd");
1418 avio_wb32(pb, 0); /* version, flags */
1419 avio_wb16(pb, 0); /* maxPDUsize */
1420 avio_wb16(pb, 0); /* avgPDUsize */
1421 avio_wb32(pb, 0); /* maxbitrate */
1422 avio_wb32(pb, 0); /* avgbitrate */
1423 avio_wb32(pb, 0); /* reserved */
1427 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1429 int64_t pos = avio_tell(pb);
1430 avio_wb32(pb, 0); /* size */
1431 ffio_wfourcc(pb, "minf");
1432 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1433 mov_write_vmhd_tag(pb);
1434 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1435 mov_write_smhd_tag(pb);
1436 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1437 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1438 mov_write_gmhd_tag(pb);
1440 mov_write_nmhd_tag(pb);
1442 } else if (track->tag == MKTAG('r','t','p',' ')) {
1443 mov_write_hmhd_tag(pb);
1444 } else if (track->tag == MKTAG('t','m','c','d')) {
1445 mov_write_gmhd_tag(pb);
1447 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1448 mov_write_hdlr_tag(pb, NULL);
1449 mov_write_dinf_tag(pb);
1450 mov_write_stbl_tag(pb, track);
1451 return update_size(pb, pos);
1454 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1457 int version = track->track_duration < INT32_MAX ? 0 : 1;
1459 if (track->mode == MODE_ISM)
1462 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1463 ffio_wfourcc(pb, "mdhd");
1464 avio_w8(pb, version);
1465 avio_wb24(pb, 0); /* flags */
1467 avio_wb64(pb, track->time);
1468 avio_wb64(pb, track->time);
1470 avio_wb32(pb, track->time); /* creation time */
1471 avio_wb32(pb, track->time); /* modification time */
1473 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1474 if (!track->entry && mov->mode == MODE_ISM)
1475 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1476 else if (!track->entry)
1477 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1479 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1480 avio_wb16(pb, track->language); /* language */
1481 avio_wb16(pb, 0); /* reserved (quality) */
1483 if (version != 0 && track->mode == MODE_MOV) {
1484 av_log(NULL, AV_LOG_ERROR,
1485 "FATAL error, file duration too long for timebase, this file will not be\n"
1486 "playable with quicktime. Choose a different timebase or a different\n"
1487 "container format\n");
1493 static int mov_write_mdia_tag(AVIOContext *pb, MOVMuxContext *mov,
1496 int64_t pos = avio_tell(pb);
1497 avio_wb32(pb, 0); /* size */
1498 ffio_wfourcc(pb, "mdia");
1499 mov_write_mdhd_tag(pb, mov, track);
1500 mov_write_hdlr_tag(pb, track);
1501 mov_write_minf_tag(pb, track);
1502 return update_size(pb, pos);
1505 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1506 MOVTrack *track, AVStream *st)
1508 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1509 track->timescale, AV_ROUND_UP);
1510 int version = duration < INT32_MAX ? 0 : 1;
1511 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1514 uint32_t *display_matrix = NULL;
1515 int display_matrix_size, i;
1518 if (mov->per_stream_grouping)
1521 group = st->codec->codec_type;
1523 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1524 &display_matrix_size);
1525 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1526 display_matrix = NULL;
1529 if (track->flags & MOV_TRACK_ENABLED)
1530 flags |= MOV_TKHD_FLAG_ENABLED;
1532 if (track->mode == MODE_ISM)
1535 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1536 ffio_wfourcc(pb, "tkhd");
1537 avio_w8(pb, version);
1538 avio_wb24(pb, flags);
1540 avio_wb64(pb, track->time);
1541 avio_wb64(pb, track->time);
1543 avio_wb32(pb, track->time); /* creation time */
1544 avio_wb32(pb, track->time); /* modification time */
1546 avio_wb32(pb, track->track_id); /* track-id */
1547 avio_wb32(pb, 0); /* reserved */
1548 if (!track->entry && mov->mode == MODE_ISM)
1549 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1550 else if (!track->entry)
1551 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1553 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1555 avio_wb32(pb, 0); /* reserved */
1556 avio_wb32(pb, 0); /* reserved */
1557 avio_wb16(pb, 0); /* layer */
1558 avio_wb16(pb, group); /* alternate group) */
1559 /* Volume, only for audio */
1560 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1561 avio_wb16(pb, 0x0100);
1564 avio_wb16(pb, 0); /* reserved */
1566 /* Matrix structure */
1567 if (display_matrix) {
1568 for (i = 0; i < 9; i++)
1569 avio_wb32(pb, display_matrix[i]);
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, 0x00010000); /* reserved */
1576 avio_wb32(pb, 0x0); /* reserved */
1577 avio_wb32(pb, 0x0); /* reserved */
1578 avio_wb32(pb, 0x0); /* reserved */
1579 avio_wb32(pb, 0x40000000); /* reserved */
1582 /* Track width and height, for visual only */
1583 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1584 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1585 if (track->mode == MODE_MOV) {
1586 avio_wb32(pb, track->enc->width << 16);
1587 avio_wb32(pb, track->height << 16);
1589 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1590 if (!sample_aspect_ratio || track->height != track->enc->height)
1591 sample_aspect_ratio = 1;
1592 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1593 avio_wb32(pb, track->height * 0x10000);
1602 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1604 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1605 track->enc->sample_aspect_ratio.den);
1607 int64_t pos = avio_tell(pb);
1609 avio_wb32(pb, 0); /* size */
1610 ffio_wfourcc(pb, "tapt");
1613 ffio_wfourcc(pb, "clef");
1615 avio_wb32(pb, width << 16);
1616 avio_wb32(pb, track->enc->height << 16);
1619 ffio_wfourcc(pb, "prof");
1621 avio_wb32(pb, width << 16);
1622 avio_wb32(pb, track->enc->height << 16);
1625 ffio_wfourcc(pb, "enof");
1627 avio_wb32(pb, track->enc->width << 16);
1628 avio_wb32(pb, track->enc->height << 16);
1630 return update_size(pb, pos);
1633 // This box seems important for the psp playback ... without it the movie seems to hang
1634 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1637 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1638 track->timescale, AV_ROUND_UP);
1639 int version = duration < INT32_MAX ? 0 : 1;
1640 int entry_size, entry_count, size;
1641 int64_t delay, start_ct = track->start_cts;
1642 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1643 track->timescale, AV_ROUND_DOWN);
1644 version |= delay < INT32_MAX ? 0 : 1;
1646 entry_size = (version == 1) ? 20 : 12;
1647 entry_count = 1 + (delay > 0);
1648 size = 24 + entry_count * entry_size;
1650 /* write the atom data */
1651 avio_wb32(pb, size);
1652 ffio_wfourcc(pb, "edts");
1653 avio_wb32(pb, size - 8);
1654 ffio_wfourcc(pb, "elst");
1655 avio_w8(pb, version);
1656 avio_wb24(pb, 0); /* flags */
1658 avio_wb32(pb, entry_count);
1659 if (delay > 0) { /* add an empty edit to delay presentation */
1660 /* In the positive delay case, the delay includes the cts
1661 * offset, and the second edit list entry below trims out
1662 * the same amount from the actual content. This makes sure
1663 * that the offsetted last sample is included in the edit
1664 * list duration as well. */
1666 avio_wb64(pb, delay);
1669 avio_wb32(pb, delay);
1672 avio_wb32(pb, 0x00010000);
1674 /* Avoid accidentally ending up with start_ct = -1 which has got a
1675 * special meaning. Normally start_ct should end up positive or zero
1676 * here, but use FFMIN in case dts is a a small positive integer
1677 * rounded to 0 when represented in MOV_TIMESCALE units. */
1678 start_ct = -FFMIN(track->start_dts, 0);
1679 /* Note, this delay is calculated from the pts of the first sample,
1680 * ensuring that we don't reduce the duration for cases with
1685 /* For fragmented files, we don't know the full length yet. Setting
1686 * duration to 0 allows us to only specify the offset, including
1687 * the rest of the content (from all future fragments) without specifying
1688 * an explicit duration. */
1689 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1694 avio_wb64(pb, duration);
1695 avio_wb64(pb, start_ct);
1697 avio_wb32(pb, duration);
1698 avio_wb32(pb, start_ct);
1700 avio_wb32(pb, 0x00010000);
1704 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1706 avio_wb32(pb, 20); // size
1707 ffio_wfourcc(pb, "tref");
1708 avio_wb32(pb, 12); // size (subatom)
1709 avio_wl32(pb, track->tref_tag);
1710 avio_wb32(pb, track->tref_id);
1714 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1715 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1717 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1718 ffio_wfourcc(pb, "uuid");
1719 ffio_wfourcc(pb, "USMT");
1720 avio_wb32(pb, 0x21d24fce);
1721 avio_wb32(pb, 0xbb88695c);
1722 avio_wb32(pb, 0xfac9c740);
1723 avio_wb32(pb, 0x1c); // another size here!
1724 ffio_wfourcc(pb, "MTDT");
1725 avio_wb32(pb, 0x00010012);
1726 avio_wb32(pb, 0x0a);
1727 avio_wb32(pb, 0x55c40000);
1733 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1735 AVFormatContext *ctx = track->rtp_ctx;
1736 char buf[1000] = "";
1739 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1740 NULL, NULL, 0, 0, ctx);
1741 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1744 avio_wb32(pb, len + 24);
1745 ffio_wfourcc(pb, "udta");
1746 avio_wb32(pb, len + 16);
1747 ffio_wfourcc(pb, "hnti");
1748 avio_wb32(pb, len + 8);
1749 ffio_wfourcc(pb, "sdp ");
1750 avio_write(pb, buf, len);
1754 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1755 const char *tag, const char *str)
1757 int64_t pos = avio_tell(pb);
1758 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1759 if (!t || !utf8len(t->value))
1762 avio_wb32(pb, 0); /* size */
1763 ffio_wfourcc(pb, tag); /* type */
1764 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1765 return update_size(pb, pos);
1768 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1771 AVIOContext *pb_buf;
1778 ret = avio_open_dyn_buf(&pb_buf);
1782 if (mov->mode & MODE_MP4)
1783 mov_write_track_metadata(pb_buf, st, "name", "title");
1785 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1786 avio_wb32(pb, size + 8);
1787 ffio_wfourcc(pb, "udta");
1788 avio_write(pb, buf, size);
1795 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1796 MOVTrack *track, AVStream *st)
1798 int64_t pos = avio_tell(pb);
1799 int entry_backup = track->entry;
1800 /* If we want to have an empty moov, but some samples already have been
1801 * buffered (delay_moov), pretend that no samples have been written yet. */
1802 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1805 avio_wb32(pb, 0); /* size */
1806 ffio_wfourcc(pb, "trak");
1807 mov_write_tkhd_tag(pb, mov, track, st);
1808 if (track->start_dts != AV_NOPTS_VALUE &&
1809 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1810 track->start_dts || is_clcp_track(track))) {
1811 if (mov->use_editlist)
1812 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1813 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1814 av_log(mov->fc, AV_LOG_WARNING,
1815 "Not writing any edit list even though one would have been required\n");
1817 if (track->tref_tag)
1818 mov_write_tref_tag(pb, track);
1819 mov_write_mdia_tag(pb, mov, track);
1820 if (track->mode == MODE_PSP)
1821 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1822 if (track->tag == MKTAG('r','t','p',' '))
1823 mov_write_udta_sdp(pb, track);
1824 if (track->mode == MODE_MOV) {
1825 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1826 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1827 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1828 mov_write_tapt_tag(pb, track);
1831 if (is_clcp_track(track)) {
1832 mov_write_tapt_tag(pb, track);
1835 mov_write_track_udta_tag(pb, mov, st);
1836 track->entry = entry_backup;
1837 return update_size(pb, pos);
1840 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1842 int i, has_audio = 0, has_video = 0;
1843 int64_t pos = avio_tell(pb);
1844 int audio_profile = mov->iods_audio_profile;
1845 int video_profile = mov->iods_video_profile;
1846 for (i = 0; i < mov->nb_streams; i++) {
1847 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1848 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1849 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1852 if (audio_profile < 0)
1853 audio_profile = 0xFF - has_audio;
1854 if (video_profile < 0)
1855 video_profile = 0xFF - has_video;
1856 avio_wb32(pb, 0x0); /* size */
1857 ffio_wfourcc(pb, "iods");
1858 avio_wb32(pb, 0); /* version & flags */
1859 put_descr(pb, 0x10, 7);
1860 avio_wb16(pb, 0x004f);
1863 avio_w8(pb, audio_profile);
1864 avio_w8(pb, video_profile);
1866 return update_size(pb, pos);
1869 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1871 avio_wb32(pb, 0x20); /* size */
1872 ffio_wfourcc(pb, "trex");
1873 avio_wb32(pb, 0); /* version & flags */
1874 avio_wb32(pb, track->track_id); /* track ID */
1875 avio_wb32(pb, 1); /* default sample description index */
1876 avio_wb32(pb, 0); /* default sample duration */
1877 avio_wb32(pb, 0); /* default sample size */
1878 avio_wb32(pb, 0); /* default sample flags */
1882 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1884 int64_t pos = avio_tell(pb);
1886 avio_wb32(pb, 0x0); /* size */
1887 ffio_wfourcc(pb, "mvex");
1888 for (i = 0; i < mov->nb_streams; i++)
1889 mov_write_trex_tag(pb, &mov->tracks[i]);
1890 return update_size(pb, pos);
1893 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1895 int max_track_id = 1, i;
1896 int64_t max_track_len_temp, max_track_len = 0;
1899 for (i = 0; i < mov->nb_streams; i++) {
1900 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1901 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1903 mov->tracks[i].timescale,
1905 if (max_track_len < max_track_len_temp)
1906 max_track_len = max_track_len_temp;
1907 if (max_track_id < mov->tracks[i].track_id)
1908 max_track_id = mov->tracks[i].track_id;
1911 /* If using delay_moov, make sure the output is the same as if no
1912 * samples had been written yet. */
1913 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1918 version = max_track_len < UINT32_MAX ? 0 : 1;
1919 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1920 ffio_wfourcc(pb, "mvhd");
1921 avio_w8(pb, version);
1922 avio_wb24(pb, 0); /* flags */
1924 avio_wb64(pb, mov->time);
1925 avio_wb64(pb, mov->time);
1927 avio_wb32(pb, mov->time); /* creation time */
1928 avio_wb32(pb, mov->time); /* modification time */
1930 avio_wb32(pb, MOV_TIMESCALE);
1931 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1933 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1934 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1935 avio_wb16(pb, 0); /* reserved */
1936 avio_wb32(pb, 0); /* reserved */
1937 avio_wb32(pb, 0); /* reserved */
1939 /* Matrix structure */
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, 0x00010000); /* reserved */
1945 avio_wb32(pb, 0x0); /* reserved */
1946 avio_wb32(pb, 0x0); /* reserved */
1947 avio_wb32(pb, 0x0); /* reserved */
1948 avio_wb32(pb, 0x40000000); /* reserved */
1950 avio_wb32(pb, 0); /* reserved (preview time) */
1951 avio_wb32(pb, 0); /* reserved (preview duration) */
1952 avio_wb32(pb, 0); /* reserved (poster time) */
1953 avio_wb32(pb, 0); /* reserved (selection time) */
1954 avio_wb32(pb, 0); /* reserved (selection duration) */
1955 avio_wb32(pb, 0); /* reserved (current time) */
1956 avio_wb32(pb, max_track_id + 1); /* Next track id */
1960 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1963 avio_wb32(pb, 33); /* size */
1964 ffio_wfourcc(pb, "hdlr");
1967 ffio_wfourcc(pb, "mdir");
1968 ffio_wfourcc(pb, "appl");
1975 /* helper function to write a data tag with the specified string as data */
1976 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1979 int size = 16 + strlen(data);
1980 avio_wb32(pb, size); /* size */
1981 ffio_wfourcc(pb, "data");
1984 avio_write(pb, data, strlen(data));
1988 lang = ff_mov_iso639_to_lang("und", 1);
1989 avio_wb16(pb, strlen(data)); /* string length */
1990 avio_wb16(pb, lang);
1991 avio_write(pb, data, strlen(data));
1992 return strlen(data) + 4;
1996 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1997 const char *value, int lang, int long_style)
2000 if (value && value[0]) {
2001 int64_t pos = avio_tell(pb);
2002 avio_wb32(pb, 0); /* size */
2003 ffio_wfourcc(pb, name);
2004 mov_write_string_data_tag(pb, value, lang, long_style);
2005 size = update_size(pb, pos);
2010 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2011 const char *name, const char *tag,
2014 int l, lang = 0, len, len2;
2015 AVDictionaryEntry *t, *t2 = NULL;
2018 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2021 len = strlen(t->key);
2022 snprintf(tag2, sizeof(tag2), "%s-", tag);
2023 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2024 len2 = strlen(t2->key);
2025 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2026 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2031 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2034 /* iTunes track number */
2035 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2038 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2039 int size = 0, track = t ? atoi(t->value) : 0;
2041 avio_wb32(pb, 32); /* size */
2042 ffio_wfourcc(pb, "trkn");
2043 avio_wb32(pb, 24); /* size */
2044 ffio_wfourcc(pb, "data");
2045 avio_wb32(pb, 0); // 8 bytes empty
2047 avio_wb16(pb, 0); // empty
2048 avio_wb16(pb, track); // track number
2049 avio_wb16(pb, 0); // total track number
2050 avio_wb16(pb, 0); // empty
2056 /* iTunes meta data list */
2057 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2060 int64_t pos = avio_tell(pb);
2061 avio_wb32(pb, 0); /* size */
2062 ffio_wfourcc(pb, "ilst");
2063 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2064 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2065 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2066 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2067 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2068 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2069 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2070 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2071 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2073 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2074 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2075 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2076 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2077 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2078 mov_write_string_metadata(s, pb, "desc", "description",1);
2079 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2080 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2081 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2082 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2083 mov_write_trkn_tag(pb, mov, s);
2084 return update_size(pb, pos);
2087 /* iTunes meta data tag */
2088 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2092 int64_t pos = avio_tell(pb);
2093 avio_wb32(pb, 0); /* size */
2094 ffio_wfourcc(pb, "meta");
2096 mov_write_itunes_hdlr_tag(pb, mov, s);
2097 mov_write_ilst_tag(pb, mov, s);
2098 size = update_size(pb, pos);
2102 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2106 GET_UTF8(val, *b++, return -1;)
2109 avio_wb16(pb, 0x00);
2113 static uint16_t language_code(const char *str)
2115 return (((str[0] - 0x60) & 0x1F) << 10) +
2116 (((str[1] - 0x60) & 0x1F) << 5) +
2117 (( str[2] - 0x60) & 0x1F);
2120 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2121 const char *tag, const char *str)
2123 int64_t pos = avio_tell(pb);
2124 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2125 if (!t || !utf8len(t->value))
2127 avio_wb32(pb, 0); /* size */
2128 ffio_wfourcc(pb, tag); /* type */
2129 avio_wb32(pb, 0); /* version + flags */
2130 if (!strcmp(tag, "yrrc"))
2131 avio_wb16(pb, atoi(t->value));
2133 avio_wb16(pb, language_code("eng")); /* language */
2134 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2135 if (!strcmp(tag, "albm") &&
2136 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2137 avio_w8(pb, atoi(t->value));
2139 return update_size(pb, pos);
2142 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2144 int64_t pos = avio_tell(pb);
2145 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2147 avio_wb32(pb, 0); // size
2148 ffio_wfourcc(pb, "chpl");
2149 avio_wb32(pb, 0x01000000); // version + flags
2150 avio_wb32(pb, 0); // unknown
2151 avio_w8(pb, nb_chapters);
2153 for (i = 0; i < nb_chapters; i++) {
2154 AVChapter *c = s->chapters[i];
2155 AVDictionaryEntry *t;
2156 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2158 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2159 int len = FFMIN(strlen(t->value), 255);
2161 avio_write(pb, t->value, len);
2165 return update_size(pb, pos);
2168 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2171 AVIOContext *pb_buf;
2175 ret = avio_open_dyn_buf(&pb_buf);
2179 if (mov->mode & MODE_3GP) {
2180 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2181 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2182 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2183 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2184 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2185 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2186 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2187 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2188 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2189 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2190 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2191 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2192 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2193 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2194 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2195 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2196 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2197 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2198 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2199 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2200 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2202 /* iTunes meta data */
2203 mov_write_meta_tag(pb_buf, mov, s);
2206 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2207 mov_write_chpl_tag(pb_buf, s);
2209 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2210 avio_wb32(pb, size + 8);
2211 ffio_wfourcc(pb, "udta");
2212 avio_write(pb, buf, size);
2219 static void mov_write_psp_udta_tag(AVIOContext *pb,
2220 const char *str, const char *lang, int type)
2222 int len = utf8len(str) + 1;
2225 avio_wb16(pb, len * 2 + 10); /* size */
2226 avio_wb32(pb, type); /* type */
2227 avio_wb16(pb, language_code(lang)); /* language */
2228 avio_wb16(pb, 0x01); /* ? */
2229 ascii_to_wc(pb, str);
2232 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2234 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2238 pos = avio_tell(pb);
2239 avio_wb32(pb, 0); /* size placeholder*/
2240 ffio_wfourcc(pb, "uuid");
2241 ffio_wfourcc(pb, "USMT");
2242 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2243 avio_wb32(pb, 0xbb88695c);
2244 avio_wb32(pb, 0xfac9c740);
2246 pos2 = avio_tell(pb);
2247 avio_wb32(pb, 0); /* size placeholder*/
2248 ffio_wfourcc(pb, "MTDT");
2252 avio_wb16(pb, 0x0C); /* size */
2253 avio_wb32(pb, 0x0B); /* type */
2254 avio_wb16(pb, language_code("und")); /* language */
2255 avio_wb16(pb, 0x0); /* ? */
2256 avio_wb16(pb, 0x021C); /* data */
2258 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2259 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2260 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2262 update_size(pb, pos2);
2263 return update_size(pb, pos);
2269 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2273 int64_t pos = avio_tell(pb);
2274 avio_wb32(pb, 0); /* size placeholder*/
2275 ffio_wfourcc(pb, "moov");
2277 for (i = 0; i < mov->nb_streams; i++) {
2278 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2281 mov->tracks[i].time = mov->time;
2282 mov->tracks[i].track_id = i + 1;
2285 if (mov->chapter_track)
2286 for (i = 0; i < s->nb_streams; i++) {
2287 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2288 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2290 for (i = 0; i < mov->nb_streams; i++) {
2291 MOVTrack *track = &mov->tracks[i];
2292 if (track->tag == MKTAG('r','t','p',' ')) {
2293 track->tref_tag = MKTAG('h','i','n','t');
2294 track->tref_id = mov->tracks[track->src_track].track_id;
2295 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2296 int * fallback, size;
2297 fallback = (int*)av_stream_get_side_data(track->st,
2298 AV_PKT_DATA_FALLBACK_TRACK,
2300 if (fallback != NULL && size == sizeof(int)) {
2301 if (*fallback >= 0 && *fallback < mov->nb_streams) {
2302 track->tref_tag = MKTAG('f','a','l','l');
2303 track->tref_id = mov->tracks[*fallback].track_id;
2309 mov_write_mvhd_tag(pb, mov);
2310 if (mov->mode != MODE_MOV && !mov->iods_skip)
2311 mov_write_iods_tag(pb, mov);
2312 for (i = 0; i < mov->nb_streams; i++) {
2313 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2314 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2317 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2318 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2320 if (mov->mode == MODE_PSP)
2321 mov_write_uuidusmt_tag(pb, s);
2323 mov_write_udta_tag(pb, mov, s);
2325 return update_size(pb, pos);
2328 static void param_write_int(AVIOContext *pb, const char *name, int value)
2330 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2333 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2335 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2338 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2341 len = FFMIN(sizeof(buf) / 2 - 1, len);
2342 ff_data_to_hex(buf, value, len, 0);
2343 buf[2 * len] = '\0';
2344 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2347 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2349 int64_t pos = avio_tell(pb);
2351 const uint8_t uuid[] = {
2352 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2353 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2357 ffio_wfourcc(pb, "uuid");
2358 avio_write(pb, uuid, sizeof(uuid));
2361 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2362 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2363 avio_printf(pb, "<head>\n");
2364 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2366 avio_printf(pb, "</head>\n");
2367 avio_printf(pb, "<body>\n");
2368 avio_printf(pb, "<switch>\n");
2369 for (i = 0; i < mov->nb_streams; i++) {
2370 MOVTrack *track = &mov->tracks[i];
2372 /* track->track_id is initialized in write_moov, and thus isn't known
2374 int track_id = i + 1;
2376 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2378 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2383 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2384 track->enc->bit_rate);
2385 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2386 param_write_int(pb, "trackID", track_id);
2387 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2388 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2390 int size = track->enc->extradata_size;
2391 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2393 param_write_hex(pb, "CodecPrivateData",
2394 ptr ? ptr : track->enc->extradata,
2398 param_write_string(pb, "FourCC", "H264");
2399 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2400 param_write_string(pb, "FourCC", "WVC1");
2401 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2402 track->enc->extradata_size);
2404 param_write_int(pb, "MaxWidth", track->enc->width);
2405 param_write_int(pb, "MaxHeight", track->enc->height);
2406 param_write_int(pb, "DisplayWidth", track->enc->width);
2407 param_write_int(pb, "DisplayHeight", track->enc->height);
2409 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2410 param_write_string(pb, "FourCC", "AACL");
2411 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2412 param_write_string(pb, "FourCC", "WMAP");
2414 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2415 track->enc->extradata_size);
2416 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2417 track->enc->codec_id));
2418 param_write_int(pb, "Channels", track->enc->channels);
2419 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2420 param_write_int(pb, "BitsPerSample", 16);
2421 param_write_int(pb, "PacketSize", track->enc->block_align ?
2422 track->enc->block_align : 4);
2424 avio_printf(pb, "</%s>\n", type);
2426 avio_printf(pb, "</switch>\n");
2427 avio_printf(pb, "</body>\n");
2428 avio_printf(pb, "</smil>\n");
2430 return update_size(pb, pos);
2433 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2436 ffio_wfourcc(pb, "mfhd");
2438 avio_wb32(pb, mov->fragments);
2442 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2444 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2445 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2448 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2449 MOVTrack *track, int64_t moof_offset)
2451 int64_t pos = avio_tell(pb);
2452 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2453 MOV_TFHD_BASE_DATA_OFFSET;
2454 if (!track->entry) {
2455 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2457 flags |= MOV_TFHD_DEFAULT_FLAGS;
2459 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2460 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2461 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2462 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2463 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2466 /* Don't set a default sample size, the silverlight player refuses
2467 * to play files with that set. Don't set a default sample duration,
2468 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2469 * file format says it MUST NOT be set. */
2470 if (track->mode == MODE_ISM)
2471 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2472 MOV_TFHD_BASE_DATA_OFFSET);
2474 avio_wb32(pb, 0); /* size placeholder */
2475 ffio_wfourcc(pb, "tfhd");
2476 avio_w8(pb, 0); /* version */
2477 avio_wb24(pb, flags);
2479 avio_wb32(pb, track->track_id); /* track-id */
2480 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2481 avio_wb64(pb, moof_offset);
2482 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2483 track->default_duration = get_cluster_duration(track, 0);
2484 avio_wb32(pb, track->default_duration);
2486 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2487 track->default_size = track->entry ? track->cluster[0].size : 1;
2488 avio_wb32(pb, track->default_size);
2490 track->default_size = -1;
2492 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2493 /* Set the default flags based on the second sample, if available.
2494 * If the first sample is different, that can be signaled via a separate field. */
2495 if (track->entry > 1)
2496 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2498 track->default_sample_flags =
2499 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2500 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2501 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2502 avio_wb32(pb, track->default_sample_flags);
2505 return update_size(pb, pos);
2508 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2509 MOVTrack *track, int moof_size,
2512 int64_t pos = avio_tell(pb);
2513 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2516 for (i = first; i < end; i++) {
2517 if (get_cluster_duration(track, i) != track->default_duration)
2518 flags |= MOV_TRUN_SAMPLE_DURATION;
2519 if (track->cluster[i].size != track->default_size)
2520 flags |= MOV_TRUN_SAMPLE_SIZE;
2521 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2522 flags |= MOV_TRUN_SAMPLE_FLAGS;
2524 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2525 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2526 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2527 if (track->flags & MOV_TRACK_CTTS)
2528 flags |= MOV_TRUN_SAMPLE_CTS;
2530 avio_wb32(pb, 0); /* size placeholder */
2531 ffio_wfourcc(pb, "trun");
2532 avio_w8(pb, 0); /* version */
2533 avio_wb24(pb, flags);
2535 avio_wb32(pb, end - first); /* sample count */
2536 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2537 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2539 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2541 avio_wb32(pb, moof_size + 8 + track->data_offset +
2542 track->cluster[first].pos); /* data offset */
2543 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2544 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2546 for (i = first; i < end; i++) {
2547 if (flags & MOV_TRUN_SAMPLE_DURATION)
2548 avio_wb32(pb, get_cluster_duration(track, i));
2549 if (flags & MOV_TRUN_SAMPLE_SIZE)
2550 avio_wb32(pb, track->cluster[i].size);
2551 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2552 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2553 if (flags & MOV_TRUN_SAMPLE_CTS)
2554 avio_wb32(pb, track->cluster[i].cts);
2557 mov->first_trun = 0;
2558 return update_size(pb, pos);
2561 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2563 int64_t pos = avio_tell(pb);
2564 const uint8_t uuid[] = {
2565 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2566 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2569 avio_wb32(pb, 0); /* size placeholder */
2570 ffio_wfourcc(pb, "uuid");
2571 avio_write(pb, uuid, sizeof(uuid));
2574 avio_wb64(pb, track->start_dts + track->frag_start +
2575 track->cluster[0].cts);
2576 avio_wb64(pb, track->end_pts -
2577 (track->cluster[0].dts + track->cluster[0].cts));
2579 return update_size(pb, pos);
2582 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2583 MOVTrack *track, int entry)
2585 int n = track->nb_frag_info - 1 - entry, i;
2586 int size = 8 + 16 + 4 + 1 + 16*n;
2587 const uint8_t uuid[] = {
2588 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2589 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2595 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2596 avio_wb32(pb, size);
2597 ffio_wfourcc(pb, "uuid");
2598 avio_write(pb, uuid, sizeof(uuid));
2602 for (i = 0; i < n; i++) {
2603 int index = entry + 1 + i;
2604 avio_wb64(pb, track->frag_info[index].time);
2605 avio_wb64(pb, track->frag_info[index].duration);
2607 if (n < mov->ism_lookahead) {
2608 int free_size = 16 * (mov->ism_lookahead - n);
2609 avio_wb32(pb, free_size);
2610 ffio_wfourcc(pb, "free");
2611 for (i = 0; i < free_size - 8; i++)
2618 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2621 int64_t pos = avio_tell(pb);
2623 for (i = 0; i < mov->ism_lookahead; i++) {
2624 /* Update the tfrf tag for the last ism_lookahead fragments,
2625 * nb_frag_info - 1 is the next fragment to be written. */
2626 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2628 avio_seek(pb, pos, SEEK_SET);
2632 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2636 for (i = 0; i < mov->nb_streams; i++) {
2637 MOVTrack *track = &mov->tracks[i];
2638 MOVFragmentInfo *info;
2639 if ((tracks >= 0 && i != tracks) || !track->entry)
2641 track->nb_frag_info++;
2642 if (track->nb_frag_info >= track->frag_info_capacity) {
2643 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2644 if (av_reallocp_array(&track->frag_info,
2646 sizeof(*track->frag_info)))
2647 return AVERROR(ENOMEM);
2648 track->frag_info_capacity = new_capacity;
2650 info = &track->frag_info[track->nb_frag_info - 1];
2651 info->offset = avio_tell(pb);
2653 // Try to recreate the original pts for the first packet
2654 // from the fields we have stored
2655 info->time = track->start_dts + track->frag_start +
2656 track->cluster[0].cts;
2657 info->duration = track->end_pts -
2658 (track->cluster[0].dts + track->cluster[0].cts);
2659 // If the pts is less than zero, we will have trimmed
2660 // away parts of the media track using an edit list,
2661 // and the corresponding start presentation time is zero.
2662 if (info->time < 0) {
2663 info->duration += info->time;
2666 info->tfrf_offset = 0;
2667 mov_write_tfrf_tags(pb, mov, track);
2672 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2674 int64_t pos = avio_tell(pb);
2676 avio_wb32(pb, 0); /* size */
2677 ffio_wfourcc(pb, "tfdt");
2678 avio_w8(pb, 1); /* version */
2680 avio_wb64(pb, track->frag_start);
2681 return update_size(pb, pos);
2684 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2685 MOVTrack *track, int64_t moof_offset,
2688 int64_t pos = avio_tell(pb);
2690 avio_wb32(pb, 0); /* size placeholder */
2691 ffio_wfourcc(pb, "traf");
2693 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2694 if (mov->mode != MODE_ISM)
2695 mov_write_tfdt_tag(pb, track);
2696 for (i = 1; i < track->entry; i++) {
2697 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2698 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2702 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2703 if (mov->mode == MODE_ISM) {
2704 mov_write_tfxd_tag(pb, track);
2706 if (mov->ism_lookahead) {
2707 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2709 if (track->nb_frag_info > 0) {
2710 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2711 if (!info->tfrf_offset)
2712 info->tfrf_offset = avio_tell(pb);
2714 avio_wb32(pb, 8 + size);
2715 ffio_wfourcc(pb, "free");
2716 for (i = 0; i < size; i++)
2721 return update_size(pb, pos);
2724 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2725 int tracks, int moof_size)
2727 int64_t pos = avio_tell(pb);
2730 avio_wb32(pb, 0); /* size placeholder */
2731 ffio_wfourcc(pb, "moof");
2732 mov->first_trun = 1;
2734 mov_write_mfhd_tag(pb, mov);
2735 for (i = 0; i < mov->nb_streams; i++) {
2736 MOVTrack *track = &mov->tracks[i];
2737 if (tracks >= 0 && i != tracks)
2741 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2744 return update_size(pb, pos);
2747 static int mov_write_sidx_tag(AVIOContext *pb,
2748 MOVTrack *track, int ref_size, int total_sidx_size)
2750 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2751 int64_t presentation_time, duration, offset;
2752 int starts_with_SAP, i, entries;
2756 presentation_time = track->start_dts + track->frag_start +
2757 track->cluster[0].cts;
2758 duration = track->end_pts -
2759 (track->cluster[0].dts + track->cluster[0].cts);
2760 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2762 // pts<0 should be cut away using edts
2763 if (presentation_time < 0) {
2764 duration += presentation_time;
2765 presentation_time = 0;
2768 entries = track->nb_frag_info;
2771 presentation_time = track->frag_info[0].time;
2774 avio_wb32(pb, 0); /* size */
2775 ffio_wfourcc(pb, "sidx");
2776 avio_w8(pb, 1); /* version */
2778 avio_wb32(pb, track->track_id); /* reference_ID */
2779 avio_wb32(pb, track->timescale); /* timescale */
2780 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2781 offset_pos = avio_tell(pb);
2782 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2783 avio_wb16(pb, 0); /* reserved */
2785 avio_wb16(pb, entries); /* reference_count */
2786 for (i = 0; i < entries; i++) {
2787 if (!track->entry) {
2788 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2789 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2791 duration = track->frag_info[i].duration;
2792 ref_size = track->frag_info[i].size;
2793 starts_with_SAP = 1;
2795 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2796 avio_wb32(pb, duration); /* subsegment_duration */
2797 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2800 end_pos = avio_tell(pb);
2801 offset = pos + total_sidx_size - end_pos;
2802 avio_seek(pb, offset_pos, SEEK_SET);
2803 avio_wb64(pb, offset);
2804 avio_seek(pb, end_pos, SEEK_SET);
2805 return update_size(pb, pos);
2808 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2809 int tracks, int ref_size)
2812 AVIOContext *avio_buf;
2814 for (round = 0; round < 2; round++) {
2815 // First run one round to calculate the total size of all
2817 // This would be much simpler if we'd only write one sidx
2818 // atom, for the first track in the moof.
2820 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2825 for (i = 0; i < mov->nb_streams; i++) {
2826 MOVTrack *track = &mov->tracks[i];
2827 if (tracks >= 0 && i != tracks)
2829 // When writing a sidx for the full file, entry is 0, but
2830 // we want to include all tracks. ref_size is 0 in this case,
2831 // since we read it from frag_info instead.
2832 if (!track->entry && ref_size > 0)
2834 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2838 total_size = ffio_close_null_buf(avio_buf);
2843 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2846 AVIOContext *avio_buf;
2849 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2851 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2852 moof_size = ffio_close_null_buf(avio_buf);
2854 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
2855 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2857 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2860 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2863 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2865 int64_t pos = avio_tell(pb);
2868 avio_wb32(pb, 0); /* size placeholder */
2869 ffio_wfourcc(pb, "tfra");
2870 avio_w8(pb, 1); /* version */
2873 avio_wb32(pb, track->track_id);
2874 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2875 avio_wb32(pb, track->nb_frag_info);
2876 for (i = 0; i < track->nb_frag_info; i++) {
2877 avio_wb64(pb, track->frag_info[i].time);
2878 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2879 avio_w8(pb, 1); /* traf number */
2880 avio_w8(pb, 1); /* trun number */
2881 avio_w8(pb, 1); /* sample number */
2884 return update_size(pb, pos);
2887 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2889 int64_t pos = avio_tell(pb);
2892 avio_wb32(pb, 0); /* size placeholder */
2893 ffio_wfourcc(pb, "mfra");
2894 /* An empty mfra atom is enough to indicate to the publishing point that
2895 * the stream has ended. */
2896 if (mov->flags & FF_MOV_FLAG_ISML)
2897 return update_size(pb, pos);
2899 for (i = 0; i < mov->nb_streams; i++) {
2900 MOVTrack *track = &mov->tracks[i];
2901 if (track->nb_frag_info)
2902 mov_write_tfra_tag(pb, track);
2906 ffio_wfourcc(pb, "mfro");
2907 avio_wb32(pb, 0); /* version + flags */
2908 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2910 return update_size(pb, pos);
2913 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2915 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2916 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2918 mov->mdat_pos = avio_tell(pb);
2919 avio_wb32(pb, 0); /* size placeholder*/
2920 ffio_wfourcc(pb, "mdat");
2924 /* TODO: This needs to be more general */
2925 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2927 MOVMuxContext *mov = s->priv_data;
2928 int64_t pos = avio_tell(pb);
2929 int has_h264 = 0, has_video = 0;
2933 for (i = 0; i < s->nb_streams; i++) {
2934 AVStream *st = s->streams[i];
2935 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2937 if (st->codec->codec_id == AV_CODEC_ID_H264)
2941 avio_wb32(pb, 0); /* size */
2942 ffio_wfourcc(pb, "ftyp");
2944 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2945 ffio_wfourcc(pb, mov->major_brand);
2946 else if (mov->mode == MODE_3GP) {
2947 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2948 minor = has_h264 ? 0x100 : 0x200;
2949 } else if (mov->mode & MODE_3G2) {
2950 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2951 minor = has_h264 ? 0x20000 : 0x10000;
2952 } else if (mov->mode == MODE_PSP)
2953 ffio_wfourcc(pb, "MSNV");
2954 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2955 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2956 else if (mov->mode == MODE_MP4)
2957 ffio_wfourcc(pb, "isom");
2958 else if (mov->mode == MODE_IPOD)
2959 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2960 else if (mov->mode == MODE_ISM)
2961 ffio_wfourcc(pb, "isml");
2962 else if (mov->mode == MODE_F4V)
2963 ffio_wfourcc(pb, "f4v ");
2965 ffio_wfourcc(pb, "qt ");
2967 avio_wb32(pb, minor);
2969 if (mov->mode == MODE_MOV)
2970 ffio_wfourcc(pb, "qt ");
2971 else if (mov->mode == MODE_ISM) {
2972 ffio_wfourcc(pb, "piff");
2973 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
2974 ffio_wfourcc(pb, "isom");
2975 ffio_wfourcc(pb, "iso2");
2977 ffio_wfourcc(pb, "avc1");
2980 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
2981 // brand. This is compatible with users that don't understand tfdt.
2982 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
2983 ffio_wfourcc(pb, "iso6");
2985 if (mov->mode == MODE_3GP)
2986 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2987 else if (mov->mode & MODE_3G2)
2988 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2989 else if (mov->mode == MODE_PSP)
2990 ffio_wfourcc(pb, "MSNV");
2991 else if (mov->mode == MODE_MP4)
2992 ffio_wfourcc(pb, "mp41");
2994 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
2995 ffio_wfourcc(pb, "dash");
2997 return update_size(pb, pos);
3000 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3002 AVStream *video_st = s->streams[0];
3003 AVCodecContext *video_codec = s->streams[0]->codec;
3004 AVCodecContext *audio_codec = s->streams[1]->codec;
3005 int audio_rate = audio_codec->sample_rate;
3006 // TODO: should be avg_frame_rate
3007 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3008 int audio_kbitrate = audio_codec->bit_rate / 1000;
3009 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
3011 avio_wb32(pb, 0x94); /* size */
3012 ffio_wfourcc(pb, "uuid");
3013 ffio_wfourcc(pb, "PROF");
3015 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3016 avio_wb32(pb, 0xbb88695c);
3017 avio_wb32(pb, 0xfac9c740);
3019 avio_wb32(pb, 0x0); /* ? */
3020 avio_wb32(pb, 0x3); /* 3 sections ? */
3022 avio_wb32(pb, 0x14); /* size */
3023 ffio_wfourcc(pb, "FPRF");
3024 avio_wb32(pb, 0x0); /* ? */
3025 avio_wb32(pb, 0x0); /* ? */
3026 avio_wb32(pb, 0x0); /* ? */
3028 avio_wb32(pb, 0x2c); /* size */
3029 ffio_wfourcc(pb, "APRF"); /* audio */
3031 avio_wb32(pb, 0x2); /* TrackID */
3032 ffio_wfourcc(pb, "mp4a");
3033 avio_wb32(pb, 0x20f);
3035 avio_wb32(pb, audio_kbitrate);
3036 avio_wb32(pb, audio_kbitrate);
3037 avio_wb32(pb, audio_rate);
3038 avio_wb32(pb, audio_codec->channels);
3040 avio_wb32(pb, 0x34); /* size */
3041 ffio_wfourcc(pb, "VPRF"); /* video */
3043 avio_wb32(pb, 0x1); /* TrackID */
3044 if (video_codec->codec_id == AV_CODEC_ID_H264) {
3045 ffio_wfourcc(pb, "avc1");
3046 avio_wb16(pb, 0x014D);
3047 avio_wb16(pb, 0x0015);
3049 ffio_wfourcc(pb, "mp4v");
3050 avio_wb16(pb, 0x0000);
3051 avio_wb16(pb, 0x0103);
3054 avio_wb32(pb, video_kbitrate);
3055 avio_wb32(pb, video_kbitrate);
3056 avio_wb32(pb, frame_rate);
3057 avio_wb32(pb, frame_rate);
3058 avio_wb16(pb, video_codec->width);
3059 avio_wb16(pb, video_codec->height);
3060 avio_wb32(pb, 0x010001); /* ? */
3063 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3065 MOVMuxContext *mov = s->priv_data;
3066 mov_write_ftyp_tag(pb,s);
3067 if (mov->mode == MODE_PSP) {
3068 if (s->nb_streams != 2) {
3069 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3070 return AVERROR(EINVAL);
3072 mov_write_uuidprof_tag(pb, s);
3077 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3080 int i, closed_gop = 0;
3082 for (i = 0; i < pkt->size - 4; i++) {
3083 c = (c << 8) + pkt->data[i];
3084 if (c == 0x1b8) { // gop
3085 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3086 } else if (c == 0x100) { // pic
3087 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3088 if (!temp_ref || closed_gop) // I picture is not reordered
3089 *flags = MOV_SYNC_SAMPLE;
3091 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3098 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3100 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3101 int seq = 0, entry = 0;
3102 int key = pkt->flags & AV_PKT_FLAG_KEY;
3103 start = find_next_marker(pkt->data, end);
3104 for (next = start; next < end; start = next) {
3105 next = find_next_marker(start + 4, end);
3106 switch (AV_RB32(start)) {
3107 case VC1_CODE_SEQHDR:
3110 case VC1_CODE_ENTRYPOINT:
3113 case VC1_CODE_SLICE:
3114 trk->vc1_info.slices = 1;
3118 if (!trk->entry && trk->vc1_info.first_packet_seen)
3119 trk->vc1_info.first_frag_written = 1;
3120 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3121 /* First packet in first fragment */
3122 trk->vc1_info.first_packet_seq = seq;
3123 trk->vc1_info.first_packet_entry = entry;
3124 trk->vc1_info.first_packet_seen = 1;
3125 } else if ((seq && !trk->vc1_info.packet_seq) ||
3126 (entry && !trk->vc1_info.packet_entry)) {
3128 for (i = 0; i < trk->entry; i++)
3129 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3130 trk->has_keyframes = 0;
3132 trk->vc1_info.packet_seq = 1;
3134 trk->vc1_info.packet_entry = 1;
3135 if (!trk->vc1_info.first_frag_written) {
3136 /* First fragment */
3137 if ((!seq || trk->vc1_info.first_packet_seq) &&
3138 (!entry || trk->vc1_info.first_packet_entry)) {
3139 /* First packet had the same headers as this one, readd the
3140 * sync sample flag. */
3141 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3142 trk->has_keyframes = 1;
3146 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3148 else if (trk->vc1_info.packet_seq)
3150 else if (trk->vc1_info.packet_entry)
3153 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3154 trk->has_keyframes++;
3158 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3160 MOVMuxContext *mov = s->priv_data;
3165 if (!track->mdat_buf)
3167 if (!mov->mdat_buf) {
3168 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3171 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3172 track->mdat_buf = NULL;
3174 offset = avio_tell(mov->mdat_buf);
3175 avio_write(mov->mdat_buf, buf, buf_size);
3178 for (i = track->entries_flushed; i < track->entry; i++)
3179 track->cluster[i].pos += offset;
3180 track->entries_flushed = track->entry;
3184 static int mov_flush_fragment(AVFormatContext *s, int force)
3186 MOVMuxContext *mov = s->priv_data;
3187 int i, first_track = -1;
3188 int64_t mdat_size = 0;
3190 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3193 for (i = 0; i < mov->nb_streams; i++) {
3194 MOVTrack *track = &mov->tracks[i];
3195 if (track->entry <= 1)
3197 // Sample durations are calculated as the diff of dts values,
3198 // but for the last sample in a fragment, we don't know the dts
3199 // of the first sample in the next fragment, so we have to rely
3200 // on what was set as duration in the AVPacket. Not all callers
3201 // set this though, so we might want to replace it with an
3202 // estimate if it currently is zero.
3203 if (get_cluster_duration(track, track->entry - 1) != 0)
3205 // Use the duration (i.e. dts diff) of the second last sample for
3206 // the last one. This is a wild guess (and fatal if it turns out
3207 // to be too long), but probably the best we can do - having a zero
3208 // duration is bad as well.
3209 track->track_duration += get_cluster_duration(track, track->entry - 2);
3210 track->end_pts += get_cluster_duration(track, track->entry - 2);
3211 if (!mov->missing_duration_warned) {
3212 av_log(s, AV_LOG_WARNING,
3213 "Estimating the duration of the last packet in a "
3214 "fragment, consider setting the duration field in "
3215 "AVPacket instead.\n");
3216 mov->missing_duration_warned = 1;
3220 if (!mov->moov_written) {
3221 int64_t pos = avio_tell(s->pb);
3223 AVIOContext *moov_buf;
3227 for (i = 0; i < mov->nb_streams; i++)
3228 if (!mov->tracks[i].entry)
3230 /* Don't write the initial moov unless all tracks have data */
3231 if (i < mov->nb_streams && !force)
3234 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3236 mov_write_moov_tag(moov_buf, mov, s);
3237 buf_size = ffio_close_null_buf(moov_buf);
3238 for (i = 0; i < mov->nb_streams; i++)
3239 mov->tracks[i].data_offset = pos + buf_size + 8;
3241 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3242 mov_write_identification(s->pb, s);
3243 mov_write_moov_tag(s->pb, mov, s);
3245 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3246 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3247 mov->reserved_header_pos = avio_tell(s->pb);
3249 mov->moov_written = 1;
3253 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3254 mov->mdat_buf = NULL;
3255 avio_wb32(s->pb, buf_size + 8);
3256 ffio_wfourcc(s->pb, "mdat");
3257 avio_write(s->pb, buf, buf_size);
3260 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3261 mov->reserved_header_pos = avio_tell(s->pb);
3263 mov->moov_written = 1;
3265 for (i = 0; i < mov->nb_streams; i++) {
3266 if (mov->tracks[i].entry)
3267 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3268 mov->tracks[i].track_duration -
3269 mov->tracks[i].cluster[0].dts;
3270 mov->tracks[i].entry = 0;
3276 if (mov->frag_interleave) {
3277 for (i = 0; i < mov->nb_streams; i++) {
3278 MOVTrack *track = &mov->tracks[i];
3280 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3286 mdat_size = avio_tell(mov->mdat_buf);
3289 for (i = 0; i < mov->nb_streams; i++) {
3290 MOVTrack *track = &mov->tracks[i];
3291 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3292 track->data_offset = 0;
3294 track->data_offset = mdat_size;
3297 if (track->mdat_buf)
3298 mdat_size += avio_tell(track->mdat_buf);
3299 if (first_track < 0)
3306 for (i = 0; i < mov->nb_streams; i++) {
3307 MOVTrack *track = &mov->tracks[i];
3308 int buf_size, write_moof = 1, moof_tracks = -1;
3310 int64_t duration = 0;
3313 duration = track->start_dts + track->track_duration -
3314 track->cluster[0].dts;
3315 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3316 if (!track->mdat_buf)
3318 mdat_size = avio_tell(track->mdat_buf);
3321 write_moof = i == first_track;
3327 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3330 avio_wb32(s->pb, mdat_size + 8);
3331 ffio_wfourcc(s->pb, "mdat");
3335 track->frag_start += duration;
3337 track->entries_flushed = 0;
3338 if (!mov->frag_interleave) {
3339 if (!track->mdat_buf)
3341 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3342 track->mdat_buf = NULL;
3346 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3347 mov->mdat_buf = NULL;
3350 avio_write(s->pb, buf, buf_size);
3360 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
3362 MOVMuxContext *mov = s->priv_data;
3363 int had_moov = mov->moov_written;
3364 int ret = mov_flush_fragment(s, force);
3367 // If using delay_moov, the first flush only wrote the moov,
3368 // not the actual moof+mdat pair, thus flush once again.
3369 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3370 ret = mov_flush_fragment(s, force);
3374 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3376 MOVMuxContext *mov = s->priv_data;
3377 AVIOContext *pb = s->pb;
3378 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3379 AVCodecContext *enc = trk->enc;
3380 unsigned int samples_in_chunk = 0;
3381 int size = pkt->size, ret = 0;
3382 uint8_t *reformatted_data = NULL;
3384 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3386 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3387 if (mov->frag_interleave && mov->fragments > 0) {
3388 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3389 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3394 if (!trk->mdat_buf) {
3395 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3400 if (!mov->mdat_buf) {
3401 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3408 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3409 /* We must find out how many AMR blocks there are in one packet */
3410 static uint16_t packed_size[16] =
3411 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3414 while (len < size && samples_in_chunk < 100) {
3415 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3418 if (samples_in_chunk > 1) {
3419 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3422 } else if (trk->sample_size)
3423 samples_in_chunk = size / trk->sample_size;
3425 samples_in_chunk = 1;
3427 /* copy extradata if it exists */
3428 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3429 trk->vos_len = enc->extradata_size;
3430 trk->vos_data = av_malloc(trk->vos_len);
3431 if (!trk->vos_data) {
3432 ret = AVERROR(ENOMEM);
3435 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3438 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3439 /* from x264 or from bytestream h264 */
3440 /* nal reformating needed */
3441 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3442 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3444 avio_write(pb, reformatted_data, size);
3446 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3448 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3449 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3450 /* extradata is Annex B, assume the bitstream is too and convert it */
3451 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3452 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3453 avio_write(pb, reformatted_data, size);
3455 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3458 avio_write(pb, pkt->data, size);
3461 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3462 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3463 /* copy frame to create needed atoms */
3464 trk->vos_len = size;
3465 trk->vos_data = av_malloc(size);
3466 if (!trk->vos_data) {
3467 ret = AVERROR(ENOMEM);
3470 memcpy(trk->vos_data, pkt->data, size);
3473 if (trk->entry >= trk->cluster_capacity) {
3474 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3475 if (av_reallocp_array(&trk->cluster, new_capacity,
3476 sizeof(*trk->cluster))) {
3477 ret = AVERROR(ENOMEM);
3480 trk->cluster_capacity = new_capacity;
3483 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3484 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3485 trk->cluster[trk->entry].size = size;
3486 trk->cluster[trk->entry].entries = samples_in_chunk;
3487 trk->cluster[trk->entry].dts = pkt->dts;
3488 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3489 if (!trk->frag_discont) {
3490 /* First packet of a new fragment. We already wrote the duration
3491 * of the last packet of the previous fragment based on track_duration,
3492 * which might not exactly match our dts. Therefore adjust the dts
3493 * of this packet to be what the previous packets duration implies. */
3494 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3495 /* We also may have written the pts and the corresponding duration
3496 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3497 * the next fragment. This means the cts of the first sample must
3498 * be the same in all fragments. */
3499 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
3500 mov->mode == MODE_ISM)
3501 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3503 /* New fragment, but discontinuous from previous fragments.
3504 * Pretend the duration sum of the earlier fragments is
3505 * pkt->dts - trk->start_dts. */
3506 trk->frag_start = pkt->dts - trk->start_dts;
3507 trk->end_pts = AV_NOPTS_VALUE;
3508 trk->frag_discont = 0;
3511 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3512 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3513 /* Not using edit lists and shifting the first track to start from zero.
3514 * If the other streams start from a later timestamp, we won't be able
3515 * to signal the difference in starting time without an edit list.
3516 * Thus move the timestamp for this first sample to 0, increasing
3517 * its duration instead. */
3518 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3520 if (trk->start_dts == AV_NOPTS_VALUE) {
3521 trk->start_dts = pkt->dts;
3522 if (trk->frag_discont) {
3523 if (mov->use_editlist) {
3524 /* Pretend the whole stream started at pts=0, with earlier fragments
3525 * already written. If the stream started at pts=0, the duration sum
3526 * of earlier fragments would have been pkt->pts. */
3527 trk->frag_start = pkt->pts;
3528 trk->start_dts = pkt->dts - pkt->pts;
3530 /* Pretend the whole stream started at dts=0, with earlier fragments
3531 * already written, with a duration summing up to pkt->dts. */
3532 trk->frag_start = pkt->dts;
3535 trk->frag_discont = 0;
3536 } else if (pkt->dts && mov->moov_written)
3537 av_log(s, AV_LOG_WARNING,
3538 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3539 "already has been written. Set the delay_moov flag to handle "
3541 pkt->stream_index, pkt->dts);
3543 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3545 if (pkt->pts == AV_NOPTS_VALUE) {
3546 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3547 pkt->pts = pkt->dts;
3549 if (pkt->dts != pkt->pts)
3550 trk->flags |= MOV_TRACK_CTTS;
3551 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3552 trk->cluster[trk->entry].flags = 0;
3553 if (trk->start_cts == AV_NOPTS_VALUE)
3554 trk->start_cts = pkt->pts - pkt->dts;
3555 if (trk->end_pts == AV_NOPTS_VALUE)
3556 trk->end_pts = trk->cluster[trk->entry].dts +
3557 trk->cluster[trk->entry].cts + pkt->duration;
3559 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3560 trk->cluster[trk->entry].cts +
3563 if (enc->codec_id == AV_CODEC_ID_VC1) {
3564 mov_parse_vc1_frame(pkt, trk);
3565 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3566 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3567 trk->entry > 0) { // force sync sample for the first key frame
3568 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3569 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3570 trk->flags |= MOV_TRACK_STPS;
3572 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3574 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3575 trk->has_keyframes++;
3578 trk->sample_count += samples_in_chunk;
3579 mov->mdat_size += size;
3581 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3582 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3583 reformatted_data, size);
3586 av_free(reformatted_data);
3590 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3593 mov_flush_fragment(s, 1);
3596 MOVMuxContext *mov = s->priv_data;
3597 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3598 AVCodecContext *enc = trk->enc;
3599 int64_t frag_duration = 0;
3600 int size = pkt->size;
3602 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3604 for (i = 0; i < s->nb_streams; i++)
3605 mov->tracks[i].frag_discont = 1;
3606 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3610 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
3611 trk->start_dts = pkt->dts;
3612 if (pkt->pts != AV_NOPTS_VALUE)
3613 trk->start_cts = pkt->pts - pkt->dts;
3618 return 0; /* Discard 0 sized packets */
3622 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3623 s->streams[pkt->stream_index]->time_base,
3625 if ((mov->max_fragment_duration &&
3626 frag_duration >= mov->max_fragment_duration) ||
3627 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3628 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3629 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3630 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3631 if (frag_duration >= mov->min_fragment_duration) {
3632 // Set the duration of this track to line up with the next
3633 // sample in this track. This avoids relying on AVPacket
3634 // duration, but only helps for this particular track, not
3635 // for the other ones that are flushed at the same time.
3636 trk->track_duration = pkt->dts - trk->start_dts;
3637 trk->end_pts = pkt->pts;
3638 mov_auto_flush_fragment(s, 0);
3642 return ff_mov_write_packet(s, pkt);
3646 // QuickTime chapters involve an additional text track with the chapter names
3647 // as samples, and a tref pointing from the other tracks to the chapter one.
3648 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3650 MOVMuxContext *mov = s->priv_data;
3651 MOVTrack *track = &mov->tracks[tracknum];
3652 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3654 // These properties are required to make QT recognize the chapter track
3655 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3657 track->mode = mov->mode;
3658 track->tag = MKTAG('t','e','x','t');
3659 track->timescale = MOV_TIMESCALE;
3660 track->enc = avcodec_alloc_context3(NULL);
3662 return AVERROR(ENOMEM);
3663 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3664 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3665 if (!track->enc->extradata)
3666 return AVERROR(ENOMEM);
3667 track->enc->extradata_size = sizeof(chapter_properties);
3668 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3670 for (i = 0; i < s->nb_chapters; i++) {
3671 AVChapter *c = s->chapters[i];
3672 AVDictionaryEntry *t;
3674 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3675 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3676 pkt.duration = end - pkt.dts;
3678 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3679 const char encd[12] = {
3680 0x00, 0x00, 0x00, 0x0C,
3682 0x00, 0x00, 0x01, 0x00 };
3683 len = strlen(t->value);
3684 pkt.size = len + 2 + 12;
3685 pkt.data = av_malloc(pkt.size);
3687 return AVERROR(ENOMEM);
3688 AV_WB16(pkt.data, len);
3689 memcpy(pkt.data + 2, t->value, len);
3690 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3691 ff_mov_write_packet(s, &pkt);
3692 av_freep(&pkt.data);
3700 * st->disposition controls the "enabled" flag in the tkhd tag.
3701 * QuickTime will not play a track if it is not enabled. So make sure
3702 * that one track of each type (audio, video, subtitle) is enabled.
3704 * Subtitles are special. For audio and video, setting "enabled" also
3705 * makes the track "default" (i.e. it is rendered when played). For
3706 * subtitles, an "enabled" subtitle is not rendered by default, but
3707 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3710 static void enable_tracks(AVFormatContext *s)
3712 MOVMuxContext *mov = s->priv_data;
3714 int enabled[AVMEDIA_TYPE_NB];
3715 int first[AVMEDIA_TYPE_NB];
3717 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3722 for (i = 0; i < s->nb_streams; i++) {
3723 AVStream *st = s->streams[i];
3725 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3726 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3729 if (first[st->codec->codec_type] < 0)
3730 first[st->codec->codec_type] = i;
3731 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3732 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3733 enabled[st->codec->codec_type]++;
3737 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3739 case AVMEDIA_TYPE_VIDEO:
3740 case AVMEDIA_TYPE_AUDIO:
3741 case AVMEDIA_TYPE_SUBTITLE:
3743 mov->per_stream_grouping = 1;
3744 if (!enabled[i] && first[i] >= 0)
3745 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3751 static void mov_free(AVFormatContext *s)
3753 MOVMuxContext *mov = s->priv_data;
3756 if (mov->chapter_track) {
3757 if (mov->tracks[mov->chapter_track].enc)
3758 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3759 av_freep(&mov->tracks[mov->chapter_track].enc);
3762 for (i = 0; i < mov->nb_streams; i++) {
3763 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3764 ff_mov_close_hinting(&mov->tracks[i]);
3765 av_freep(&mov->tracks[i].cluster);
3766 av_freep(&mov->tracks[i].frag_info);
3768 if (mov->tracks[i].vos_len)
3769 av_free(mov->tracks[i].vos_data);
3772 av_freep(&mov->tracks);
3775 static uint32_t rgb_to_yuv(uint32_t rgb)
3780 r = (rgb >> 16) & 0xFF;
3781 g = (rgb >> 8) & 0xFF;
3784 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3785 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3786 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3788 return (y << 16) | (cr << 8) | cb;
3791 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3794 int i, width = 720, height = 480;
3795 int have_palette = 0, have_size = 0;
3796 uint32_t palette[16];
3797 char *cur = st->codec->extradata;
3799 while (cur && *cur) {
3800 if (strncmp("palette:", cur, 8) == 0) {
3802 count = sscanf(cur + 8,
3803 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3804 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3805 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3806 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3807 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3808 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3809 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3810 &palette[12], &palette[13], &palette[14], &palette[15]);
3812 for (i = 0; i < count; i++) {
3813 palette[i] = rgb_to_yuv(palette[i]);
3816 } else if (!strncmp("size:", cur, 5)) {
3817 sscanf(cur + 5, "%dx%d", &width, &height);
3820 if (have_palette && have_size)
3822 cur += strcspn(cur, "\n\r");
3823 cur += strspn(cur, "\n\r");
3826 track->vos_data = av_malloc(16*4);
3827 if (!track->vos_data)
3828 return AVERROR(ENOMEM);
3829 for (i = 0; i < 16; i++) {
3830 AV_WB32(track->vos_data + i * 4, palette[i]);
3832 track->vos_len = 16 * 4;
3834 st->codec->width = width;
3835 st->codec->height = track->height = height;
3840 static int mov_write_header(AVFormatContext *s)
3842 AVIOContext *pb = s->pb;
3843 MOVMuxContext *mov = s->priv_data;
3844 AVDictionaryEntry *t;
3845 int i, ret, hint_track = 0;
3849 /* Default mode == MP4 */
3850 mov->mode = MODE_MP4;
3853 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3854 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3855 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3856 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3857 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3858 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3859 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3862 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3863 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3865 /* Set the FRAGMENT flag if any of the fragmentation methods are
3867 if (mov->max_fragment_duration || mov->max_fragment_size ||
3868 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3869 FF_MOV_FLAG_FRAG_KEYFRAME |
3870 FF_MOV_FLAG_FRAG_CUSTOM))
3871 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3873 /* Set other implicit flags immediately */
3874 if (mov->mode == MODE_ISM)
3875 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3876 FF_MOV_FLAG_FRAGMENT;
3877 if (mov->flags & FF_MOV_FLAG_DASH)
3878 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
3879 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
3881 if (mov->use_editlist < 0) {
3882 mov->use_editlist = 1;
3883 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3884 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3885 // If we can avoid needing an edit list by shifting the
3886 // tracks, prefer that over (trying to) write edit lists
3887 // in fragmented output.
3888 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3889 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3890 mov->use_editlist = 0;
3893 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
3894 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
3895 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
3897 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3898 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3900 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
3901 * if the latter is set that's enough and omit_tfhd_offset doesn't
3902 * add anything extra on top of that. */
3903 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3904 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3905 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
3907 if (mov->frag_interleave &&
3908 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
3909 av_log(s, AV_LOG_ERROR,
3910 "Sample interleaving in fragments is mutually exclusive with "
3911 "omit_tfhd_offset and separate_moof\n");
3912 return AVERROR(EINVAL);
3915 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3916 * is enabled, we don't support non-seekable output at all. */
3917 if (!s->pb->seekable &&
3918 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3919 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3920 return AVERROR(EINVAL);
3924 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3925 if ((ret = mov_write_identification(pb, s)) < 0)
3929 mov->nb_streams = s->nb_streams;
3930 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3931 mov->chapter_track = mov->nb_streams++;
3933 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3934 /* Add hint tracks for each audio and video stream */
3935 hint_track = mov->nb_streams;
3936 for (i = 0; i < s->nb_streams; i++) {
3937 AVStream *st = s->streams[i];
3938 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3939 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3945 // Reserve an extra stream for chapters for the case where chapters
3946 // are written in the trailer
3947 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3949 return AVERROR(ENOMEM);
3951 for (i = 0; i < s->nb_streams; i++) {
3952 AVStream *st= s->streams[i];
3953 MOVTrack *track= &mov->tracks[i];
3954 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3957 track->enc = st->codec;
3958 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3959 if (track->language < 0)
3960 track->language = 0;
3961 track->mode = mov->mode;
3962 track->tag = mov_find_codec_tag(s, track);
3964 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3965 "codec not currently supported in container\n", i);
3968 /* If hinting of this track is enabled by a later hint track,
3969 * this is updated. */
3970 track->hint_track = -1;
3971 track->start_dts = AV_NOPTS_VALUE;
3972 track->start_cts = AV_NOPTS_VALUE;
3973 track->end_pts = AV_NOPTS_VALUE;
3974 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3975 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3976 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3977 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3978 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3979 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3982 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3984 track->timescale = st->time_base.den;
3985 if (track->mode == MODE_MOV && track->timescale > 100000)
3986 av_log(s, AV_LOG_WARNING,
3987 "WARNING codec timebase is very high. If duration is too long,\n"
3988 "file may not be playable by quicktime. Specify a shorter timebase\n"
3989 "or choose different container.\n");
3990 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3991 track->timescale = st->codec->sample_rate;
3992 /* set sample_size for PCM and ADPCM */
3993 if (av_get_bits_per_sample(st->codec->codec_id) ||
3994 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3995 if (!st->codec->block_align) {
3996 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3999 track->sample_size = st->codec->block_align;
4001 /* set audio_vbr for compressed audio */
4002 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
4003 track->audio_vbr = 1;
4005 if (track->mode != MODE_MOV &&
4006 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4007 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4008 i, track->enc->sample_rate);
4011 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4012 track->timescale = st->time_base.den;
4013 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
4014 track->timescale = st->time_base.den;
4017 track->height = st->codec->height;
4018 /* The ism specific timescale isn't mandatory, but is assumed by
4019 * some tools, such as mp4split. */
4020 if (mov->mode == MODE_ISM)
4021 track->timescale = 10000000;
4023 avpriv_set_pts_info(st, 64, 1, track->timescale);
4025 /* copy extradata if it exists */
4026 if (st->codec->extradata_size) {
4027 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4028 mov_create_dvd_sub_decoder_specific_info(track, st);
4030 track->vos_len = st->codec->extradata_size;
4031 track->vos_data = av_malloc(track->vos_len);
4032 if (!track->vos_data)
4034 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
4041 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4042 /* If no fragmentation options have been set, set a default. */
4043 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4044 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4045 !mov->max_fragment_duration && !mov->max_fragment_size)
4046 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4048 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4049 mov->reserved_header_pos = avio_tell(pb);
4050 mov_write_mdat_tag(pb, mov);
4053 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4054 mov->time = ff_iso8601_to_unix_time(t->value);
4056 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4058 if (mov->chapter_track)
4059 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4062 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4063 /* Initialize the hint tracks for each audio and video stream */
4064 for (i = 0; i < s->nb_streams; i++) {
4065 AVStream *st = s->streams[i];
4066 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
4067 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
4068 ff_mov_init_hinting(s, hint_track, i);
4076 if (mov->flags & FF_MOV_FLAG_ISML)
4077 mov_write_isml_manifest(pb, mov);
4079 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4080 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4081 mov_write_moov_tag(pb, mov, s);
4083 mov->moov_written = 1;
4084 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4085 mov->reserved_header_pos = avio_tell(pb);
4094 static int get_moov_size(AVFormatContext *s)
4097 AVIOContext *moov_buf;
4098 MOVMuxContext *mov = s->priv_data;
4100 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4102 mov_write_moov_tag(moov_buf, mov, s);
4103 return ffio_close_null_buf(moov_buf);
4106 static int get_sidx_size(AVFormatContext *s)
4110 MOVMuxContext *mov = s->priv_data;
4112 if ((ret = ffio_open_null_buf(&buf)) < 0)
4114 mov_write_sidx_tags(buf, mov, -1, 0);
4115 return ffio_close_null_buf(buf);
4119 * This function gets the moov size if moved to the top of the file: the chunk
4120 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4121 * entries) when the moov is moved to the beginning, so the size of the moov
4122 * would change. It also updates the chunk offset tables.
4124 static int compute_moov_size(AVFormatContext *s)
4126 int i, moov_size, moov_size2;
4127 MOVMuxContext *mov = s->priv_data;
4129 moov_size = get_moov_size(s);
4133 for (i = 0; i < mov->nb_streams; i++)
4134 mov->tracks[i].data_offset += moov_size;
4136 moov_size2 = get_moov_size(s);
4140 /* if the size changed, we just switched from stco to co64 and need to
4141 * update the offsets */
4142 if (moov_size2 != moov_size)
4143 for (i = 0; i < mov->nb_streams; i++)
4144 mov->tracks[i].data_offset += moov_size2 - moov_size;
4149 static int compute_sidx_size(AVFormatContext *s)
4152 MOVMuxContext *mov = s->priv_data;
4154 sidx_size = get_sidx_size(s);
4158 for (i = 0; i < mov->nb_streams; i++)
4159 mov->tracks[i].data_offset += sidx_size;
4164 static int shift_data(AVFormatContext *s)
4166 int ret = 0, moov_size;
4167 MOVMuxContext *mov = s->priv_data;
4168 int64_t pos, pos_end = avio_tell(s->pb);
4169 uint8_t *buf, *read_buf[2];
4170 int read_buf_id = 0;
4172 AVIOContext *read_pb;
4174 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4175 moov_size = compute_sidx_size(s);
4177 moov_size = compute_moov_size(s);
4181 buf = av_malloc(moov_size * 2);
4183 return AVERROR(ENOMEM);
4185 read_buf[1] = buf + moov_size;
4187 /* Shift the data: the AVIO context of the output can only be used for
4188 * writing, so we re-open the same output, but for reading. It also avoids
4189 * a read/seek/write/seek back and forth. */
4191 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
4193 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4194 "the second pass (faststart)\n", s->filename);
4198 /* mark the end of the shift to up to the last data we wrote, and get ready
4200 pos_end = avio_tell(s->pb);
4201 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4203 /* start reading at where the new moov will be placed */
4204 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4205 pos = avio_tell(read_pb);
4207 #define READ_BLOCK do { \
4208 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4212 /* shift data by chunk of at most moov_size */
4217 n = read_size[read_buf_id];
4220 avio_write(s->pb, read_buf[read_buf_id], n);
4222 } while (pos < pos_end);
4223 ff_format_io_close(s, &read_pb);
4230 static int mov_write_trailer(AVFormatContext *s)
4232 MOVMuxContext *mov = s->priv_data;
4233 AVIOContext *pb = s->pb;
4238 // If there were no chapters when the header was written, but there
4239 // are chapters now, write them in the trailer. This only works
4240 // when we are not doing fragments.
4241 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4242 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4243 mov->chapter_track = mov->nb_streams++;
4244 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4249 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4250 moov_pos = avio_tell(pb);
4252 /* Write size of mdat tag */
4253 if (mov->mdat_size + 8 <= UINT32_MAX) {
4254 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4255 avio_wb32(pb, mov->mdat_size + 8);
4257 /* overwrite 'wide' placeholder atom */
4258 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4259 /* special value: real atom size will be 64 bit value after
4262 ffio_wfourcc(pb, "mdat");
4263 avio_wb64(pb, mov->mdat_size + 16);
4265 avio_seek(pb, moov_pos, SEEK_SET);
4267 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4268 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4269 res = shift_data(s);
4271 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4272 mov_write_moov_tag(pb, mov, s);
4275 mov_write_moov_tag(pb, mov, s);
4278 mov_auto_flush_fragment(s, 1);
4279 for (i = 0; i < mov->nb_streams; i++)
4280 mov->tracks[i].data_offset = 0;
4281 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
4282 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4283 res = shift_data(s);
4285 int64_t end = avio_tell(pb);
4286 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4287 mov_write_sidx_tags(pb, mov, -1, 0);
4288 avio_seek(pb, end, SEEK_SET);
4289 mov_write_mfra_tag(pb, mov);
4292 mov_write_mfra_tag(pb, mov);
4302 #if CONFIG_MOV_MUXER
4304 AVOutputFormat ff_mov_muxer = {
4306 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4307 .extensions = "mov",
4308 .priv_data_size = sizeof(MOVMuxContext),
4309 .audio_codec = AV_CODEC_ID_AAC,
4310 .video_codec = CONFIG_LIBX264_ENCODER ?
4311 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4312 .write_header = mov_write_header,
4313 .write_packet = mov_write_packet,
4314 .write_trailer = mov_write_trailer,
4315 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4316 .codec_tag = (const AVCodecTag* const []){
4317 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4319 .priv_class = &mov_muxer_class,
4322 #if CONFIG_TGP_MUXER
4324 AVOutputFormat ff_tgp_muxer = {
4326 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4327 .extensions = "3gp",
4328 .priv_data_size = sizeof(MOVMuxContext),
4329 .audio_codec = AV_CODEC_ID_AMR_NB,
4330 .video_codec = AV_CODEC_ID_H263,
4331 .write_header = mov_write_header,
4332 .write_packet = mov_write_packet,
4333 .write_trailer = mov_write_trailer,
4334 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4335 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4336 .priv_class = &tgp_muxer_class,
4339 #if CONFIG_MP4_MUXER
4341 AVOutputFormat ff_mp4_muxer = {
4343 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4344 .mime_type = "application/mp4",
4345 .extensions = "mp4",
4346 .priv_data_size = sizeof(MOVMuxContext),
4347 .audio_codec = AV_CODEC_ID_AAC,
4348 .video_codec = CONFIG_LIBX264_ENCODER ?
4349 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4350 .write_header = mov_write_header,
4351 .write_packet = mov_write_packet,
4352 .write_trailer = mov_write_trailer,
4353 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4354 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4355 .priv_class = &mp4_muxer_class,
4358 #if CONFIG_PSP_MUXER
4360 AVOutputFormat ff_psp_muxer = {
4362 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4363 .extensions = "mp4,psp",
4364 .priv_data_size = sizeof(MOVMuxContext),
4365 .audio_codec = AV_CODEC_ID_AAC,
4366 .video_codec = CONFIG_LIBX264_ENCODER ?
4367 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4368 .write_header = mov_write_header,
4369 .write_packet = mov_write_packet,
4370 .write_trailer = mov_write_trailer,
4371 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4372 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4373 .priv_class = &psp_muxer_class,
4376 #if CONFIG_TG2_MUXER
4378 AVOutputFormat ff_tg2_muxer = {
4380 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4381 .extensions = "3g2",
4382 .priv_data_size = sizeof(MOVMuxContext),
4383 .audio_codec = AV_CODEC_ID_AMR_NB,
4384 .video_codec = AV_CODEC_ID_H263,
4385 .write_header = mov_write_header,
4386 .write_packet = mov_write_packet,
4387 .write_trailer = mov_write_trailer,
4388 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4389 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4390 .priv_class = &tg2_muxer_class,
4393 #if CONFIG_IPOD_MUXER
4395 AVOutputFormat ff_ipod_muxer = {
4397 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4398 .mime_type = "application/mp4",
4399 .extensions = "m4v,m4a",
4400 .priv_data_size = sizeof(MOVMuxContext),
4401 .audio_codec = AV_CODEC_ID_AAC,
4402 .video_codec = AV_CODEC_ID_H264,
4403 .write_header = mov_write_header,
4404 .write_packet = mov_write_packet,
4405 .write_trailer = mov_write_trailer,
4406 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4407 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4408 .priv_class = &ipod_muxer_class,
4411 #if CONFIG_ISMV_MUXER
4413 AVOutputFormat ff_ismv_muxer = {
4415 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4416 .mime_type = "application/mp4",
4417 .extensions = "ismv,isma",
4418 .priv_data_size = sizeof(MOVMuxContext),
4419 .audio_codec = AV_CODEC_ID_AAC,
4420 .video_codec = AV_CODEC_ID_H264,
4421 .write_header = mov_write_header,
4422 .write_packet = mov_write_packet,
4423 .write_trailer = mov_write_trailer,
4424 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4425 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4426 .priv_class = &ismv_muxer_class,
4429 #if CONFIG_F4V_MUXER
4431 AVOutputFormat ff_f4v_muxer = {
4433 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4434 .mime_type = "application/f4v",
4435 .extensions = "f4v",
4436 .priv_data_size = sizeof(MOVMuxContext),
4437 .audio_codec = AV_CODEC_ID_AAC,
4438 .video_codec = AV_CODEC_ID_H264,
4439 .write_header = mov_write_header,
4440 .write_packet = mov_write_packet,
4441 .write_trailer = mov_write_trailer,
4442 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4443 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4444 .priv_class = &f4v_muxer_class,