3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/dict.h"
47 static const AVOption options[] = {
48 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
49 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
50 { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
51 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62 { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "skip_trailer", "Skip writing the mfra/tfra/mfro trailer for fragmented files", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_TRAILER}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
64 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
65 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
66 { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
67 { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
68 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
69 { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71 { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
73 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
74 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
75 { "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 },
79 #define MOV_CLASS(flavor)\
80 static const AVClass flavor ## _muxer_class = {\
81 .class_name = #flavor " muxer",\
82 .item_name = av_default_item_name,\
84 .version = LIBAVUTIL_VERSION_INT,\
87 static int utf8len(const uint8_t *b)
92 GET_UTF8(val, *b++, return -1;)
98 //FIXME support 64 bit variant with wide placeholders
99 static int64_t update_size(AVIOContext *pb, int64_t pos)
101 int64_t curpos = avio_tell(pb);
102 avio_seek(pb, pos, SEEK_SET);
103 avio_wb32(pb, curpos - pos); /* rewrite size */
104 avio_seek(pb, curpos, SEEK_SET);
109 static int co64_required(const MOVTrack *track)
111 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
116 /* Chunk offset atom */
117 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
120 int mode64 = co64_required(track); // use 32 bit size variant if possible
121 int64_t pos = avio_tell(pb);
122 avio_wb32(pb, 0); /* size */
124 ffio_wfourcc(pb, "co64");
126 ffio_wfourcc(pb, "stco");
127 avio_wb32(pb, 0); /* version & flags */
128 avio_wb32(pb, track->entry); /* entry count */
129 for (i = 0; i < track->entry; i++) {
131 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
133 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
135 return update_size(pb, pos);
138 /* Sample size atom */
139 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
142 int i, j, entries = 0, tst = -1, oldtst = -1;
144 int64_t pos = avio_tell(pb);
145 avio_wb32(pb, 0); /* size */
146 ffio_wfourcc(pb, "stsz");
147 avio_wb32(pb, 0); /* version & flags */
149 for (i = 0; i < track->entry; i++) {
150 tst = track->cluster[i].size / track->cluster[i].entries;
151 if (oldtst != -1 && tst != oldtst)
154 entries += track->cluster[i].entries;
156 if (equalChunks && track->entry) {
157 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
158 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
159 avio_wb32(pb, sSize); // sample size
160 avio_wb32(pb, entries); // sample count
162 avio_wb32(pb, 0); // sample size
163 avio_wb32(pb, entries); // sample count
164 for (i = 0; i < track->entry; i++) {
165 for (j = 0; j < track->cluster[i].entries; j++) {
166 avio_wb32(pb, track->cluster[i].size /
167 track->cluster[i].entries);
171 return update_size(pb, pos);
174 /* Sample to chunk atom */
175 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
177 int index = 0, oldval = -1, i;
178 int64_t entryPos, curpos;
180 int64_t pos = avio_tell(pb);
181 avio_wb32(pb, 0); /* size */
182 ffio_wfourcc(pb, "stsc");
183 avio_wb32(pb, 0); // version & flags
184 entryPos = avio_tell(pb);
185 avio_wb32(pb, track->entry); // entry count
186 for (i = 0; i < track->entry; i++) {
187 if (oldval != track->cluster[i].samples_in_chunk) {
188 avio_wb32(pb, i + 1); // first chunk
189 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
190 avio_wb32(pb, 0x1); // sample description index
191 oldval = track->cluster[i].samples_in_chunk;
195 curpos = avio_tell(pb);
196 avio_seek(pb, entryPos, SEEK_SET);
197 avio_wb32(pb, index); // rewrite size
198 avio_seek(pb, curpos, SEEK_SET);
200 return update_size(pb, pos);
203 /* Sync sample atom */
204 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
206 int64_t curpos, entryPos;
208 int64_t pos = avio_tell(pb);
209 avio_wb32(pb, 0); // size
210 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
211 avio_wb32(pb, 0); // version & flags
212 entryPos = avio_tell(pb);
213 avio_wb32(pb, track->entry); // entry count
214 for (i = 0; i < track->entry; i++) {
215 if (track->cluster[i].flags & flag) {
216 avio_wb32(pb, i + 1);
220 curpos = avio_tell(pb);
221 avio_seek(pb, entryPos, SEEK_SET);
222 avio_wb32(pb, index); // rewrite size
223 avio_seek(pb, curpos, SEEK_SET);
224 return update_size(pb, pos);
227 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
229 avio_wb32(pb, 0x11); /* size */
230 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
231 else ffio_wfourcc(pb, "damr");
232 ffio_wfourcc(pb, "FFMP");
233 avio_w8(pb, 0); /* decoder version */
235 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
236 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
237 avio_w8(pb, 0x01); /* Frames per sample */
241 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
246 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
248 if (track->vos_len < 7)
252 ffio_wfourcc(pb, "dac3");
254 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
255 fscod = get_bits(&gbc, 2);
256 frmsizecod = get_bits(&gbc, 6);
257 bsid = get_bits(&gbc, 5);
258 bsmod = get_bits(&gbc, 3);
259 acmod = get_bits(&gbc, 3);
261 skip_bits(&gbc, 2); // dsurmod
263 if ((acmod & 1) && acmod != 1)
264 skip_bits(&gbc, 2); // cmixlev
266 skip_bits(&gbc, 2); // surmixlev
268 lfeon = get_bits1(&gbc);
270 init_put_bits(&pbc, buf, sizeof(buf));
271 put_bits(&pbc, 2, fscod);
272 put_bits(&pbc, 5, bsid);
273 put_bits(&pbc, 3, bsmod);
274 put_bits(&pbc, 3, acmod);
275 put_bits(&pbc, 1, lfeon);
276 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
277 put_bits(&pbc, 5, 0); // reserved
279 flush_put_bits(&pbc);
280 avio_write(pb, buf, sizeof(buf));
286 * This function writes extradata "as is".
287 * Extradata must be formatted like a valid atom (with size and tag).
289 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
291 avio_write(pb, track->par->extradata, track->par->extradata_size);
292 return track->par->extradata_size;
295 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
300 avio_w8(pb, (size >> (7 * i)) | 0x80);
301 avio_w8(pb, size & 0x7F);
304 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
306 AVCPBProperties *props;
307 int64_t pos = avio_tell(pb);
308 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
310 avio_wb32(pb, 0); // size
311 ffio_wfourcc(pb, "esds");
312 avio_wb32(pb, 0); // Version
315 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
316 avio_wb16(pb, track->track_id);
317 avio_w8(pb, 0x00); // flags (= no flags)
319 // DecoderConfig descriptor
320 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
322 // Object type indication
323 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
324 track->par->codec_id == AV_CODEC_ID_MP3) &&
325 track->par->sample_rate > 24000)
326 avio_w8(pb, 0x6B); // 11172-3
328 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
330 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
331 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
332 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
333 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
334 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
335 avio_w8(pb, 0x15); // flags (= Audiostream)
337 avio_w8(pb, 0x11); // flags (= Visualstream)
339 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
342 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
344 avio_wb32(pb, props ? FFMAX(props->max_bitrate, props->avg_bitrate) : track->par->bit_rate); // maxbitrate (FIXME should be max rate in any 1 sec window)
345 if (!props || !props->min_bitrate || props->max_bitrate != props->min_bitrate)
346 avio_wb32(pb, 0); // vbr
348 avio_wb32(pb, props->max_bitrate); // avg bitrate
350 if (track->vos_len) {
351 // DecoderSpecific info descriptor
352 put_descr(pb, 0x05, track->vos_len);
353 avio_write(pb, track->vos_data, track->vos_len);
357 put_descr(pb, 0x06, 1);
359 return update_size(pb, pos);
362 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
364 int64_t pos = avio_tell(pb);
366 avio_wl32(pb, track->tag); // store it byteswapped
367 track->par->codec_tag = av_bswap16(track->tag >> 16);
368 ff_put_wav_header(s, pb, track->st->codecpar);
369 return update_size(pb, pos);
372 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
374 int64_t pos = avio_tell(pb);
376 ffio_wfourcc(pb, "wfex");
377 ff_put_wav_header(s, pb, track->st->codecpar);
378 return update_size(pb, pos);
381 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
383 uint32_t layout_tag, bitmap;
384 int64_t pos = avio_tell(pb);
386 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
387 track->par->channel_layout,
390 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
391 "lack of channel information\n");
395 avio_wb32(pb, 0); // Size
396 ffio_wfourcc(pb, "chan"); // Type
397 avio_w8(pb, 0); // Version
398 avio_wb24(pb, 0); // Flags
399 avio_wb32(pb, layout_tag); // mChannelLayoutTag
400 avio_wb32(pb, bitmap); // mChannelBitmap
401 avio_wb32(pb, 0); // mNumberChannelDescriptions
403 return update_size(pb, pos);
406 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
408 int64_t pos = avio_tell(pb);
410 avio_wb32(pb, 0); /* size */
411 ffio_wfourcc(pb, "wave");
413 avio_wb32(pb, 12); /* size */
414 ffio_wfourcc(pb, "frma");
415 avio_wl32(pb, track->tag);
417 if (track->par->codec_id == AV_CODEC_ID_AAC) {
418 /* useless atom needed by mplayer, ipod, not needed by quicktime */
419 avio_wb32(pb, 12); /* size */
420 ffio_wfourcc(pb, "mp4a");
422 mov_write_esds_tag(pb, track);
423 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
424 mov_write_amr_tag(pb, track);
425 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
426 mov_write_ac3_tag(pb, track);
427 } else if (track->par->codec_id == AV_CODEC_ID_ALAC) {
428 mov_write_extradata_tag(pb, track);
429 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
430 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
431 mov_write_ms_tag(s, pb, track);
434 avio_wb32(pb, 8); /* size */
435 avio_wb32(pb, 0); /* null tag */
437 return update_size(pb, pos);
440 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
443 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
444 int unescaped_size, seq_found = 0;
445 int level = 0, interlace = 0;
446 int packet_seq = track->vc1_info.packet_seq;
447 int packet_entry = track->vc1_info.packet_entry;
448 int slices = track->vc1_info.slices;
451 if (track->start_dts == AV_NOPTS_VALUE) {
452 /* No packets written yet, vc1_info isn't authoritative yet. */
453 /* Assume inline sequence and entry headers. */
454 packet_seq = packet_entry = 1;
455 av_log(NULL, AV_LOG_WARNING,
456 "moov atom written before any packets, unable to write correct "
457 "dvc1 atom. Set the delay_moov flag to fix this.\n");
460 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
462 return AVERROR(ENOMEM);
463 start = find_next_marker(track->vos_data, end);
464 for (next = start; next < end; start = next) {
467 next = find_next_marker(start + 4, end);
468 size = next - start - 4;
471 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
472 init_get_bits(&gb, unescaped, 8 * unescaped_size);
473 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
474 int profile = get_bits(&gb, 2);
475 if (profile != PROFILE_ADVANCED) {
477 return AVERROR(ENOSYS);
480 level = get_bits(&gb, 3);
481 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
483 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
484 skip_bits(&gb, 1); /* broadcast */
485 interlace = get_bits1(&gb);
486 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
491 return AVERROR(ENOSYS);
494 init_put_bits(&pbc, buf, 7);
495 /* VC1DecSpecStruc */
496 put_bits(&pbc, 4, 12); /* profile - advanced */
497 put_bits(&pbc, 3, level);
498 put_bits(&pbc, 1, 0); /* reserved */
499 /* VC1AdvDecSpecStruc */
500 put_bits(&pbc, 3, level);
501 put_bits(&pbc, 1, 0); /* cbr */
502 put_bits(&pbc, 6, 0); /* reserved */
503 put_bits(&pbc, 1, !interlace); /* no interlace */
504 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
505 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
506 put_bits(&pbc, 1, !slices); /* no slice code */
507 put_bits(&pbc, 1, 0); /* no bframe */
508 put_bits(&pbc, 1, 0); /* reserved */
511 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
512 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
514 put_bits32(&pbc, 0xffffffff);
516 flush_put_bits(&pbc);
523 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
525 uint8_t buf[7] = { 0 };
528 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
531 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
532 ffio_wfourcc(pb, "dvc1");
533 avio_write(pb, buf, sizeof(buf));
534 avio_write(pb, track->vos_data, track->vos_len);
539 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
541 avio_wb32(pb, track->vos_len + 8);
542 ffio_wfourcc(pb, "glbl");
543 avio_write(pb, track->vos_data, track->vos_len);
544 return 8 + track->vos_len;
548 * Compute flags for 'lpcm' tag.
549 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
551 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
554 case AV_CODEC_ID_PCM_F32BE:
555 case AV_CODEC_ID_PCM_F64BE:
557 case AV_CODEC_ID_PCM_F32LE:
558 case AV_CODEC_ID_PCM_F64LE:
560 case AV_CODEC_ID_PCM_U8:
562 case AV_CODEC_ID_PCM_S16BE:
563 case AV_CODEC_ID_PCM_S24BE:
564 case AV_CODEC_ID_PCM_S32BE:
566 case AV_CODEC_ID_PCM_S8:
567 case AV_CODEC_ID_PCM_S16LE:
568 case AV_CODEC_ID_PCM_S24LE:
569 case AV_CODEC_ID_PCM_S32LE:
576 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
580 if (cluster_idx >= track->entry)
583 if (cluster_idx + 1 == track->entry)
584 next_dts = track->track_duration + track->start_dts;
586 next_dts = track->cluster[cluster_idx + 1].dts;
588 return next_dts - track->cluster[cluster_idx].dts;
591 static int get_samples_per_packet(MOVTrack *track)
593 int i, first_duration;
595 /* use 1 for raw PCM */
596 if (!track->audio_vbr)
599 /* check to see if duration is constant for all clusters */
602 first_duration = get_cluster_duration(track, 0);
603 for (i = 1; i < track->entry; i++) {
604 if (get_cluster_duration(track, i) != first_duration)
607 return first_duration;
610 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
612 int64_t pos = avio_tell(pb);
614 uint32_t tag = track->tag;
616 if (track->mode == MODE_MOV) {
617 if (mov_get_lpcm_flags(track->par->codec_id))
618 tag = AV_RL32("lpcm");
622 avio_wb32(pb, 0); /* size */
623 avio_wl32(pb, tag); // store it byteswapped
624 avio_wb32(pb, 0); /* Reserved */
625 avio_wb16(pb, 0); /* Reserved */
626 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
628 /* SoundDescription */
629 avio_wb16(pb, version); /* Version */
630 avio_wb16(pb, 0); /* Revision level */
631 avio_wb32(pb, 0); /* Reserved */
636 avio_wb16(pb, 0xfffe);
638 avio_wb32(pb, 0x00010000);
640 avio_wb64(pb, av_double2int(track->par->sample_rate));
641 avio_wb32(pb, track->par->channels);
642 avio_wb32(pb, 0x7F000000);
643 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
644 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
645 avio_wb32(pb, track->sample_size);
646 avio_wb32(pb, get_samples_per_packet(track));
648 /* reserved for mp4/3gp */
653 avio_wb16(pb, 0); /* packet size (= 0) */
654 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
655 track->par->sample_rate : 0);
656 avio_wb16(pb, 0); /* Reserved */
659 if (track->mode == MODE_MOV &&
660 (track->par->codec_id == AV_CODEC_ID_AAC ||
661 track->par->codec_id == AV_CODEC_ID_AC3 ||
662 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
663 track->par->codec_id == AV_CODEC_ID_ALAC ||
664 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
665 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
666 mov_write_wave_tag(s, pb, track);
667 else if (track->tag == MKTAG('m','p','4','a'))
668 mov_write_esds_tag(pb, track);
669 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
670 mov_write_amr_tag(pb, track);
671 else if (track->par->codec_id == AV_CODEC_ID_AC3)
672 mov_write_ac3_tag(pb, track);
673 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
674 mov_write_extradata_tag(pb, track);
675 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
676 mov_write_wfex_tag(s, pb, track);
677 else if (track->vos_len > 0)
678 mov_write_glbl_tag(pb, track);
680 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
681 mov_write_chan_tag(s, pb, track);
683 return update_size(pb, pos);
686 static int mov_write_d263_tag(AVIOContext *pb)
688 avio_wb32(pb, 0xf); /* size */
689 ffio_wfourcc(pb, "d263");
690 ffio_wfourcc(pb, "FFMP");
691 avio_w8(pb, 0); /* decoder version */
692 /* FIXME use AVCodecContext level/profile, when encoder will set values */
693 avio_w8(pb, 0xa); /* level */
694 avio_w8(pb, 0); /* profile */
698 /* TODO: No idea about these values */
699 static int mov_write_svq3_tag(AVIOContext *pb)
702 ffio_wfourcc(pb, "SMI ");
703 ffio_wfourcc(pb, "SEQH");
705 avio_wb32(pb, 0xe2c0211d);
706 avio_wb32(pb, 0xc0000000);
711 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
713 int64_t pos = avio_tell(pb);
716 ffio_wfourcc(pb, "avcC");
717 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
718 return update_size(pb, pos);
721 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
723 int64_t pos = avio_tell(pb);
726 ffio_wfourcc(pb, "hvcC");
727 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
728 return update_size(pb, pos);
731 /* also used by all avid codecs (dv, imx, meridien) and their variants */
732 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
735 avio_wb32(pb, 24); /* size */
736 ffio_wfourcc(pb, "ACLR");
737 ffio_wfourcc(pb, "ACLR");
738 ffio_wfourcc(pb, "0001");
739 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
740 avio_wb32(pb, 0); /* unknown */
742 avio_wb32(pb, 24); /* size */
743 ffio_wfourcc(pb, "APRG");
744 ffio_wfourcc(pb, "APRG");
745 ffio_wfourcc(pb, "0001");
746 avio_wb32(pb, 1); /* unknown */
747 avio_wb32(pb, 0); /* unknown */
749 avio_wb32(pb, 120); /* size */
750 ffio_wfourcc(pb, "ARES");
751 ffio_wfourcc(pb, "ARES");
752 ffio_wfourcc(pb, "0001");
753 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
754 avio_wb32(pb, track->par->width);
755 /* values below are based on samples created with quicktime and avid codecs */
756 if (track->vos_data[5] & 2) { // interlaced
757 avio_wb32(pb, track->par->height / 2);
758 avio_wb32(pb, 2); /* unknown */
759 avio_wb32(pb, 0); /* unknown */
760 avio_wb32(pb, 4); /* unknown */
762 avio_wb32(pb, track->par->height);
763 avio_wb32(pb, 1); /* unknown */
764 avio_wb32(pb, 0); /* unknown */
765 if (track->par->height == 1080)
766 avio_wb32(pb, 5); /* unknown */
768 avio_wb32(pb, 6); /* unknown */
771 for (i = 0; i < 10; i++)
774 /* extra padding for stsd needed */
779 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
781 int tag = track->par->codec_tag;
783 if (!ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id))
786 if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
787 else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
788 else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
789 else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
790 else if (track->par->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
791 else if (track->par->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
792 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
793 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
794 else if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
799 static const AVCodecTag codec_ipod_tags[] = {
800 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
801 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
802 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
803 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
804 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
805 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
806 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
807 { AV_CODEC_ID_NONE, 0 },
810 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
812 int tag = track->par->codec_tag;
814 // keep original tag for subs, ipod supports both formats
815 if (!(track->par->codec_type == AVMEDIA_TYPE_SUBTITLE &&
816 (tag == MKTAG('t', 'x', '3', 'g') ||
817 tag == MKTAG('t', 'e', 'x', 't'))))
818 tag = ff_codec_get_tag(codec_ipod_tags, track->par->codec_id);
820 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
821 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
822 "Quicktime/Ipod might not play the file\n");
827 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
831 if (track->par->width == 720) /* SD */
832 if (track->par->height == 480) /* NTSC */
833 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
834 else tag = MKTAG('d','v','c',' ');
835 else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
836 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
837 else tag = MKTAG('d','v','p','p');
838 else if (track->par->height == 720) /* HD 720 line */
839 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
840 else tag = MKTAG('d','v','h','p');
841 else if (track->par->height == 1080) /* HD 1080 line */
842 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
843 else tag = MKTAG('d','v','h','6');
845 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
852 static const struct {
853 enum AVPixelFormat pix_fmt;
856 } mov_pix_fmt_tags[] = {
857 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
858 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
859 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
860 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
861 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
862 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
863 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
864 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
865 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
866 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
867 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
868 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
869 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
870 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
873 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
875 int tag = track->par->codec_tag;
878 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
879 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
880 tag = mov_pix_fmt_tags[i].tag;
881 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
889 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
891 int tag = track->par->codec_tag;
893 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
894 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
895 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
896 track->par->codec_id == AV_CODEC_ID_H263 ||
897 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
898 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
899 tag = mov_get_dv_codec_tag(s, track);
900 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
901 tag = mov_get_rawvideo_codec_tag(s, track);
902 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
903 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
904 if (!tag) { // if no mac fcc found, try with Microsoft tags
905 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
907 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
908 "the file may be unplayable!\n");
910 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
911 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
912 if (!tag) { // if no mac fcc found, try with Microsoft tags
913 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
915 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
916 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
917 "the file may be unplayable!\n");
920 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
921 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
927 static const AVCodecTag codec_3gp_tags[] = {
928 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
929 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
930 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
931 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
932 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
933 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
934 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
935 { AV_CODEC_ID_NONE, 0 },
938 static const AVCodecTag codec_f4v_tags[] = {
939 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
940 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
941 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
942 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
943 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
944 { AV_CODEC_ID_NONE, 0 },
947 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
951 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
952 tag = mp4_get_codec_tag(s, track);
953 else if (track->mode == MODE_ISM) {
954 tag = mp4_get_codec_tag(s, track);
955 if (!tag && track->par->codec_id == AV_CODEC_ID_WMAPRO)
956 tag = MKTAG('w', 'm', 'a', ' ');
957 } else if (track->mode == MODE_IPOD)
958 tag = ipod_get_codec_tag(s, track);
959 else if (track->mode & MODE_3GP)
960 tag = ff_codec_get_tag(codec_3gp_tags, track->par->codec_id);
961 else if (track->mode == MODE_F4V)
962 tag = ff_codec_get_tag(codec_f4v_tags, track->par->codec_id);
964 tag = mov_get_codec_tag(s, track);
970 * Needed to make file play in iPods running newest firmware
971 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
973 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
976 ffio_wfourcc(pb, "uuid");
977 avio_wb32(pb, 0x6b6840f2);
978 avio_wb32(pb, 0x5f244fc5);
979 avio_wb32(pb, 0xba39a51b);
980 avio_wb32(pb, 0xcf0323f3);
985 static const uint16_t fiel_data[] = {
986 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
989 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
991 unsigned mov_field_order = 0;
992 if (track->par->field_order < FF_ARRAY_ELEMS(fiel_data))
993 mov_field_order = fiel_data[track->par->field_order];
997 ffio_wfourcc(pb, "fiel");
998 avio_wb16(pb, mov_field_order);
1002 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1004 int64_t pos = avio_tell(pb);
1005 avio_wb32(pb, 0); /* size */
1006 avio_wl32(pb, track->tag); // store it byteswapped
1007 avio_wb32(pb, 0); /* Reserved */
1008 avio_wb16(pb, 0); /* Reserved */
1009 avio_wb16(pb, 1); /* Data-reference index */
1011 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1012 mov_write_esds_tag(pb, track);
1013 else if (track->par->extradata_size)
1014 avio_write(pb, track->par->extradata, track->par->extradata_size);
1016 return update_size(pb, pos);
1019 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1022 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1023 track->par->sample_aspect_ratio.den, INT_MAX);
1026 ffio_wfourcc(pb, "pasp");
1027 avio_wb32(pb, sar.num);
1028 avio_wb32(pb, sar.den);
1032 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1034 AVDictionaryEntry *encoder;
1035 int64_t pos = avio_tell(pb);
1036 char compressor_name[32] = { 0 };
1038 avio_wb32(pb, 0); /* size */
1039 avio_wl32(pb, track->tag); // store it byteswapped
1040 avio_wb32(pb, 0); /* Reserved */
1041 avio_wb16(pb, 0); /* Reserved */
1042 avio_wb16(pb, 1); /* Data-reference index */
1044 avio_wb16(pb, 0); /* Codec stream version */
1045 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1046 if (track->mode == MODE_MOV) {
1047 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1048 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1049 avio_wb32(pb, 0); /* Temporal Quality */
1050 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1052 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1053 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1056 avio_wb32(pb, 0); /* Reserved */
1057 avio_wb32(pb, 0); /* Reserved */
1058 avio_wb32(pb, 0); /* Reserved */
1060 avio_wb16(pb, track->par->width); /* Video width */
1061 avio_wb16(pb, track->height); /* Video height */
1062 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1063 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1064 avio_wb32(pb, 0); /* Data size (= 0) */
1065 avio_wb16(pb, 1); /* Frame count (= 1) */
1067 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1068 if (track->mode == MODE_MOV &&
1069 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1070 av_strlcpy(compressor_name, encoder->value, 32);
1071 avio_w8(pb, strlen(compressor_name));
1072 avio_write(pb, compressor_name, 31);
1074 if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1075 avio_wb16(pb, track->par->bits_per_coded_sample);
1077 avio_wb16(pb, 0x18); /* Reserved */
1078 avio_wb16(pb, 0xffff); /* Reserved */
1079 if (track->tag == MKTAG('m','p','4','v'))
1080 mov_write_esds_tag(pb, track);
1081 else if (track->par->codec_id == AV_CODEC_ID_H263)
1082 mov_write_d263_tag(pb);
1083 else if (track->par->codec_id == AV_CODEC_ID_SVQ3)
1084 mov_write_svq3_tag(pb);
1085 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1086 mov_write_avid_tag(pb, track);
1087 else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1088 mov_write_hvcc_tag(pb, track);
1089 else if (track->par->codec_id == AV_CODEC_ID_H264) {
1090 mov_write_avcc_tag(pb, track);
1091 if (track->mode == MODE_IPOD)
1092 mov_write_uuid_tag_ipod(pb);
1093 } else if (track->par->field_order != AV_FIELD_UNKNOWN)
1094 mov_write_fiel_tag(pb, track);
1095 else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1096 mov_write_dvc1_tag(pb, track);
1097 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1098 track->par->codec_id == AV_CODEC_ID_VP6A) {
1099 /* Don't write any potential extradata here - the cropping
1100 * is signalled via the normal width/height fields. */
1101 } else if (track->vos_len > 0)
1102 mov_write_glbl_tag(pb, track);
1104 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num &&
1105 track->par->sample_aspect_ratio.den != track->par->sample_aspect_ratio.num) {
1106 mov_write_pasp_tag(pb, track);
1109 return update_size(pb, pos);
1112 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1114 int64_t pos = avio_tell(pb);
1115 avio_wb32(pb, 0); /* size */
1116 ffio_wfourcc(pb, "rtp ");
1117 avio_wb32(pb, 0); /* Reserved */
1118 avio_wb16(pb, 0); /* Reserved */
1119 avio_wb16(pb, 1); /* Data-reference index */
1121 avio_wb16(pb, 1); /* Hint track version */
1122 avio_wb16(pb, 1); /* Highest compatible version */
1123 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1125 avio_wb32(pb, 12); /* size */
1126 ffio_wfourcc(pb, "tims");
1127 avio_wb32(pb, track->timescale);
1129 return update_size(pb, pos);
1132 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1134 int64_t pos = avio_tell(pb);
1136 avio_wb32(pb, 0); /* size */
1137 ffio_wfourcc(pb, "tmcd"); /* Data format */
1138 avio_wb32(pb, 0); /* Reserved */
1139 avio_wb32(pb, 1); /* Data reference index */
1140 if (track->par->extradata_size)
1141 avio_write(pb, track->par->extradata, track->par->extradata_size);
1142 return update_size(pb, pos);
1145 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1147 int64_t pos = avio_tell(pb);
1148 avio_wb32(pb, 0); /* size */
1149 ffio_wfourcc(pb, "stsd");
1150 avio_wb32(pb, 0); /* version & flags */
1151 avio_wb32(pb, 1); /* entry count */
1152 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1153 mov_write_video_tag(pb, track);
1154 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1155 mov_write_audio_tag(s, pb, track);
1156 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1157 mov_write_subtitle_tag(pb, track);
1158 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1159 mov_write_rtp_tag(pb, track);
1160 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1161 mov_write_tmcd_tag(pb, track);
1162 return update_size(pb, pos);
1165 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1167 MOVStts *ctts_entries;
1168 uint32_t entries = 0;
1172 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1174 return AVERROR(ENOMEM);
1175 ctts_entries[0].count = 1;
1176 ctts_entries[0].duration = track->cluster[0].cts;
1177 for (i = 1; i < track->entry; i++) {
1178 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1179 ctts_entries[entries].count++; /* compress */
1182 ctts_entries[entries].duration = track->cluster[i].cts;
1183 ctts_entries[entries].count = 1;
1186 entries++; /* last one */
1187 atom_size = 16 + (entries * 8);
1188 avio_wb32(pb, atom_size); /* size */
1189 ffio_wfourcc(pb, "ctts");
1190 avio_wb32(pb, 0); /* version & flags */
1191 avio_wb32(pb, entries); /* entry count */
1192 for (i = 0; i < entries; i++) {
1193 avio_wb32(pb, ctts_entries[i].count);
1194 avio_wb32(pb, ctts_entries[i].duration);
1196 av_free(ctts_entries);
1200 /* Time to sample atom */
1201 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1203 MOVStts *stts_entries = NULL;
1204 uint32_t entries = -1;
1208 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1209 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1211 return AVERROR(ENOMEM);
1212 stts_entries[0].count = track->sample_count;
1213 stts_entries[0].duration = 1;
1217 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1219 return AVERROR(ENOMEM);
1221 for (i = 0; i < track->entry; i++) {
1222 int duration = get_cluster_duration(track, i);
1223 if (i && duration == stts_entries[entries].duration) {
1224 stts_entries[entries].count++; /* compress */
1227 stts_entries[entries].duration = duration;
1228 stts_entries[entries].count = 1;
1231 entries++; /* last one */
1233 atom_size = 16 + (entries * 8);
1234 avio_wb32(pb, atom_size); /* size */
1235 ffio_wfourcc(pb, "stts");
1236 avio_wb32(pb, 0); /* version & flags */
1237 avio_wb32(pb, entries); /* entry count */
1238 for (i = 0; i < entries; i++) {
1239 avio_wb32(pb, stts_entries[i].count);
1240 avio_wb32(pb, stts_entries[i].duration);
1242 av_free(stts_entries);
1246 static int mov_write_dref_tag(AVIOContext *pb)
1248 avio_wb32(pb, 28); /* size */
1249 ffio_wfourcc(pb, "dref");
1250 avio_wb32(pb, 0); /* version & flags */
1251 avio_wb32(pb, 1); /* entry count */
1253 avio_wb32(pb, 0xc); /* size */
1254 ffio_wfourcc(pb, "url ");
1255 avio_wb32(pb, 1); /* version & flags */
1260 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1262 int64_t pos = avio_tell(pb);
1263 avio_wb32(pb, 0); /* size */
1264 ffio_wfourcc(pb, "stbl");
1265 mov_write_stsd_tag(s, pb, track);
1266 mov_write_stts_tag(pb, track);
1267 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1268 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
1269 track->has_keyframes && track->has_keyframes < track->entry)
1270 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1271 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1272 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1273 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
1274 track->flags & MOV_TRACK_CTTS && track->entry)
1275 mov_write_ctts_tag(pb, track);
1276 mov_write_stsc_tag(pb, track);
1277 mov_write_stsz_tag(pb, track);
1278 mov_write_stco_tag(pb, track);
1279 return update_size(pb, pos);
1282 static int mov_write_dinf_tag(AVIOContext *pb)
1284 int64_t pos = avio_tell(pb);
1285 avio_wb32(pb, 0); /* size */
1286 ffio_wfourcc(pb, "dinf");
1287 mov_write_dref_tag(pb);
1288 return update_size(pb, pos);
1291 static int mov_write_nmhd_tag(AVIOContext *pb)
1294 ffio_wfourcc(pb, "nmhd");
1299 static int mov_write_gmhd_tag(AVIOContext *pb)
1301 avio_wb32(pb, 0x20); /* size */
1302 ffio_wfourcc(pb, "gmhd");
1303 avio_wb32(pb, 0x18); /* gmin size */
1304 ffio_wfourcc(pb, "gmin");/* generic media info */
1305 avio_wb32(pb, 0); /* version & flags */
1306 avio_wb16(pb, 0x40); /* graphics mode = */
1307 avio_wb16(pb, 0x8000); /* opColor (r?) */
1308 avio_wb16(pb, 0x8000); /* opColor (g?) */
1309 avio_wb16(pb, 0x8000); /* opColor (b?) */
1310 avio_wb16(pb, 0); /* balance */
1311 avio_wb16(pb, 0); /* reserved */
1315 static int mov_write_smhd_tag(AVIOContext *pb)
1317 avio_wb32(pb, 16); /* size */
1318 ffio_wfourcc(pb, "smhd");
1319 avio_wb32(pb, 0); /* version & flags */
1320 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1321 avio_wb16(pb, 0); /* reserved */
1325 static int mov_write_vmhd_tag(AVIOContext *pb)
1327 avio_wb32(pb, 0x14); /* size (always 0x14) */
1328 ffio_wfourcc(pb, "vmhd");
1329 avio_wb32(pb, 0x01); /* version & flags */
1330 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1334 static int is_clcp_track(MOVTrack *track)
1336 return track->tag == MKTAG('c','7','0','8') ||
1337 track->tag == MKTAG('c','6','0','8');
1340 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1342 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1343 int64_t pos = avio_tell(pb);
1347 descr = "DataHandler";
1350 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1351 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1353 descr = "VideoHandler";
1354 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1356 descr = "SoundHandler";
1357 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1358 if (track->tag == MKTAG('t','x','3','g')) {
1360 } else if (track->tag == MKTAG('m','p','4','s')) {
1362 } else if (is_clcp_track(track)) {
1367 descr = "SubtitleHandler";
1368 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
1370 descr = "HintHandler";
1371 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
1373 descr = "TimeCodeHandler";
1376 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1377 track->par->codec_tag);
1379 av_log(s, AV_LOG_WARNING,
1380 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1381 tag_buf, track->par->codec_tag);
1384 // hdlr.name is used by some players to identify the content title
1385 // of the track. So if an alternate handler description is
1386 // specified, use it.
1387 AVDictionaryEntry *t;
1388 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1389 if (t && utf8len(t->value))
1394 avio_wb32(pb, 0); /* size */
1395 ffio_wfourcc(pb, "hdlr");
1396 avio_wb32(pb, 0); /* Version & flags */
1397 avio_write(pb, hdlr, 4); /* handler */
1398 ffio_wfourcc(pb, hdlr_type); /* handler type */
1399 avio_wb32(pb, 0); /* reserved */
1400 avio_wb32(pb, 0); /* reserved */
1401 avio_wb32(pb, 0); /* reserved */
1402 if (!track || track->mode == MODE_MOV)
1403 avio_w8(pb, strlen(descr)); /* pascal string */
1404 avio_write(pb, descr, strlen(descr)); /* handler description */
1405 if (track && track->mode != MODE_MOV)
1406 avio_w8(pb, 0); /* c string */
1407 return update_size(pb, pos);
1410 static int mov_write_hmhd_tag(AVIOContext *pb)
1412 /* This atom must be present, but leaving the values at zero
1413 * seems harmless. */
1414 avio_wb32(pb, 28); /* size */
1415 ffio_wfourcc(pb, "hmhd");
1416 avio_wb32(pb, 0); /* version, flags */
1417 avio_wb16(pb, 0); /* maxPDUsize */
1418 avio_wb16(pb, 0); /* avgPDUsize */
1419 avio_wb32(pb, 0); /* maxbitrate */
1420 avio_wb32(pb, 0); /* avgbitrate */
1421 avio_wb32(pb, 0); /* reserved */
1425 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1427 int64_t pos = avio_tell(pb);
1428 avio_wb32(pb, 0); /* size */
1429 ffio_wfourcc(pb, "minf");
1430 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1431 mov_write_vmhd_tag(pb);
1432 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1433 mov_write_smhd_tag(pb);
1434 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1435 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1436 mov_write_gmhd_tag(pb);
1438 mov_write_nmhd_tag(pb);
1440 } else if (track->tag == MKTAG('r','t','p',' ')) {
1441 mov_write_hmhd_tag(pb);
1442 } else if (track->tag == MKTAG('t','m','c','d')) {
1443 mov_write_gmhd_tag(pb);
1445 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1446 mov_write_hdlr_tag(s, pb, NULL);
1447 mov_write_dinf_tag(pb);
1448 mov_write_stbl_tag(s, pb, track);
1449 return update_size(pb, pos);
1452 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1455 int version = track->track_duration < INT32_MAX ? 0 : 1;
1457 if (track->mode == MODE_ISM)
1460 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1461 ffio_wfourcc(pb, "mdhd");
1462 avio_w8(pb, version);
1463 avio_wb24(pb, 0); /* flags */
1465 avio_wb64(pb, track->time);
1466 avio_wb64(pb, track->time);
1468 avio_wb32(pb, track->time); /* creation time */
1469 avio_wb32(pb, track->time); /* modification time */
1471 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1472 if (!track->entry && mov->mode == MODE_ISM)
1473 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1474 else if (!track->entry)
1475 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1477 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1478 avio_wb16(pb, track->language); /* language */
1479 avio_wb16(pb, 0); /* reserved (quality) */
1481 if (version != 0 && track->mode == MODE_MOV) {
1482 av_log(NULL, AV_LOG_ERROR,
1483 "FATAL error, file duration too long for timebase, this file will not be\n"
1484 "playable with quicktime. Choose a different timebase or a different\n"
1485 "container format\n");
1491 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
1492 MOVMuxContext *mov, MOVTrack *track)
1494 int64_t pos = avio_tell(pb);
1495 avio_wb32(pb, 0); /* size */
1496 ffio_wfourcc(pb, "mdia");
1497 mov_write_mdhd_tag(pb, mov, track);
1498 mov_write_hdlr_tag(s, pb, track);
1499 mov_write_minf_tag(s, pb, track);
1500 return update_size(pb, pos);
1503 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1504 MOVTrack *track, AVStream *st)
1506 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1507 track->timescale, AV_ROUND_UP);
1508 int version = duration < INT32_MAX ? 0 : 1;
1509 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1512 uint32_t *display_matrix = NULL;
1513 int display_matrix_size, i;
1516 if (mov->per_stream_grouping)
1519 group = st->codecpar->codec_type;
1521 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1522 &display_matrix_size);
1523 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1524 display_matrix = NULL;
1527 if (track->flags & MOV_TRACK_ENABLED)
1528 flags |= MOV_TKHD_FLAG_ENABLED;
1530 if (track->mode == MODE_ISM)
1533 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1534 ffio_wfourcc(pb, "tkhd");
1535 avio_w8(pb, version);
1536 avio_wb24(pb, flags);
1538 avio_wb64(pb, track->time);
1539 avio_wb64(pb, track->time);
1541 avio_wb32(pb, track->time); /* creation time */
1542 avio_wb32(pb, track->time); /* modification time */
1544 avio_wb32(pb, track->track_id); /* track-id */
1545 avio_wb32(pb, 0); /* reserved */
1546 if (!track->entry && mov->mode == MODE_ISM)
1547 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1548 else if (!track->entry)
1549 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1551 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1553 avio_wb32(pb, 0); /* reserved */
1554 avio_wb32(pb, 0); /* reserved */
1555 avio_wb16(pb, 0); /* layer */
1556 avio_wb16(pb, group); /* alternate group) */
1557 /* Volume, only for audio */
1558 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1559 avio_wb16(pb, 0x0100);
1562 avio_wb16(pb, 0); /* reserved */
1564 /* Matrix structure */
1565 if (display_matrix) {
1566 for (i = 0; i < 9; i++)
1567 avio_wb32(pb, display_matrix[i]);
1569 avio_wb32(pb, 0x00010000); /* reserved */
1570 avio_wb32(pb, 0x0); /* reserved */
1571 avio_wb32(pb, 0x0); /* reserved */
1572 avio_wb32(pb, 0x0); /* reserved */
1573 avio_wb32(pb, 0x00010000); /* reserved */
1574 avio_wb32(pb, 0x0); /* reserved */
1575 avio_wb32(pb, 0x0); /* reserved */
1576 avio_wb32(pb, 0x0); /* reserved */
1577 avio_wb32(pb, 0x40000000); /* reserved */
1580 /* Track width and height, for visual only */
1581 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1582 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1583 if (track->mode == MODE_MOV) {
1584 avio_wb32(pb, track->par->width << 16);
1585 avio_wb32(pb, track->height << 16);
1587 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1588 if (!sample_aspect_ratio || track->height != track->par->height)
1589 sample_aspect_ratio = 1;
1590 avio_wb32(pb, sample_aspect_ratio * track->par->width * 0x10000);
1591 avio_wb32(pb, track->height * 0x10000);
1600 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1602 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
1603 track->par->sample_aspect_ratio.den);
1605 int64_t pos = avio_tell(pb);
1607 avio_wb32(pb, 0); /* size */
1608 ffio_wfourcc(pb, "tapt");
1611 ffio_wfourcc(pb, "clef");
1613 avio_wb32(pb, width << 16);
1614 avio_wb32(pb, track->par->height << 16);
1617 ffio_wfourcc(pb, "prof");
1619 avio_wb32(pb, width << 16);
1620 avio_wb32(pb, track->par->height << 16);
1623 ffio_wfourcc(pb, "enof");
1625 avio_wb32(pb, track->par->width << 16);
1626 avio_wb32(pb, track->par->height << 16);
1628 return update_size(pb, pos);
1631 // This box seems important for the psp playback ... without it the movie seems to hang
1632 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1635 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1636 track->timescale, AV_ROUND_UP);
1637 int version = duration < INT32_MAX ? 0 : 1;
1638 int entry_size, entry_count, size;
1639 int64_t delay, start_ct = track->start_cts;
1640 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1641 track->timescale, AV_ROUND_DOWN);
1642 version |= delay < INT32_MAX ? 0 : 1;
1644 entry_size = (version == 1) ? 20 : 12;
1645 entry_count = 1 + (delay > 0);
1646 size = 24 + entry_count * entry_size;
1648 /* write the atom data */
1649 avio_wb32(pb, size);
1650 ffio_wfourcc(pb, "edts");
1651 avio_wb32(pb, size - 8);
1652 ffio_wfourcc(pb, "elst");
1653 avio_w8(pb, version);
1654 avio_wb24(pb, 0); /* flags */
1656 avio_wb32(pb, entry_count);
1657 if (delay > 0) { /* add an empty edit to delay presentation */
1658 /* In the positive delay case, the delay includes the cts
1659 * offset, and the second edit list entry below trims out
1660 * the same amount from the actual content. This makes sure
1661 * that the offset last sample is included in the edit
1662 * list duration as well. */
1664 avio_wb64(pb, delay);
1667 avio_wb32(pb, delay);
1670 avio_wb32(pb, 0x00010000);
1672 /* Avoid accidentally ending up with start_ct = -1 which has got a
1673 * special meaning. Normally start_ct should end up positive or zero
1674 * here, but use FFMIN in case dts is a a small positive integer
1675 * rounded to 0 when represented in MOV_TIMESCALE units. */
1676 start_ct = -FFMIN(track->start_dts, 0);
1677 /* Note, this delay is calculated from the pts of the first sample,
1678 * ensuring that we don't reduce the duration for cases with
1683 /* For fragmented files, we don't know the full length yet. Setting
1684 * duration to 0 allows us to only specify the offset, including
1685 * the rest of the content (from all future fragments) without specifying
1686 * an explicit duration. */
1687 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1692 avio_wb64(pb, duration);
1693 avio_wb64(pb, start_ct);
1695 avio_wb32(pb, duration);
1696 avio_wb32(pb, start_ct);
1698 avio_wb32(pb, 0x00010000);
1702 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1704 avio_wb32(pb, 20); // size
1705 ffio_wfourcc(pb, "tref");
1706 avio_wb32(pb, 12); // size (subatom)
1707 avio_wl32(pb, track->tref_tag);
1708 avio_wb32(pb, track->tref_id);
1712 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1713 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1715 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1716 ffio_wfourcc(pb, "uuid");
1717 ffio_wfourcc(pb, "USMT");
1718 avio_wb32(pb, 0x21d24fce);
1719 avio_wb32(pb, 0xbb88695c);
1720 avio_wb32(pb, 0xfac9c740);
1721 avio_wb32(pb, 0x1c); // another size here!
1722 ffio_wfourcc(pb, "MTDT");
1723 avio_wb32(pb, 0x00010012);
1724 avio_wb32(pb, 0x0a);
1725 avio_wb32(pb, 0x55c40000);
1731 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1733 AVFormatContext *ctx = track->rtp_ctx;
1734 char buf[1000] = "";
1737 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1738 NULL, NULL, 0, 0, ctx);
1739 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1742 avio_wb32(pb, len + 24);
1743 ffio_wfourcc(pb, "udta");
1744 avio_wb32(pb, len + 16);
1745 ffio_wfourcc(pb, "hnti");
1746 avio_wb32(pb, len + 8);
1747 ffio_wfourcc(pb, "sdp ");
1748 avio_write(pb, buf, len);
1752 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1753 const char *tag, const char *str)
1755 int64_t pos = avio_tell(pb);
1756 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1757 if (!t || !utf8len(t->value))
1760 avio_wb32(pb, 0); /* size */
1761 ffio_wfourcc(pb, tag); /* type */
1762 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1763 return update_size(pb, pos);
1766 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1769 AVIOContext *pb_buf;
1776 ret = avio_open_dyn_buf(&pb_buf);
1780 if (mov->mode & MODE_MP4)
1781 mov_write_track_metadata(pb_buf, st, "name", "title");
1783 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1784 avio_wb32(pb, size + 8);
1785 ffio_wfourcc(pb, "udta");
1786 avio_write(pb, buf, size);
1793 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1794 MOVTrack *track, AVStream *st)
1796 int64_t pos = avio_tell(pb);
1797 int entry_backup = track->entry;
1798 /* If we want to have an empty moov, but some samples already have been
1799 * buffered (delay_moov), pretend that no samples have been written yet. */
1800 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1803 avio_wb32(pb, 0); /* size */
1804 ffio_wfourcc(pb, "trak");
1805 mov_write_tkhd_tag(pb, mov, track, st);
1806 if (track->start_dts != AV_NOPTS_VALUE &&
1807 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1808 track->start_dts || is_clcp_track(track))) {
1809 if (mov->use_editlist)
1810 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1811 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1812 av_log(mov->fc, AV_LOG_WARNING,
1813 "Not writing any edit list even though one would have been required\n");
1815 if (track->tref_tag)
1816 mov_write_tref_tag(pb, track);
1817 mov_write_mdia_tag(mov->fc, pb, mov, track);
1818 if (track->mode == MODE_PSP)
1819 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1820 if (track->tag == MKTAG('r','t','p',' '))
1821 mov_write_udta_sdp(pb, track);
1822 if (track->mode == MODE_MOV) {
1823 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1824 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1825 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1826 mov_write_tapt_tag(pb, track);
1829 if (is_clcp_track(track)) {
1830 mov_write_tapt_tag(pb, track);
1833 mov_write_track_udta_tag(pb, mov, st);
1834 track->entry = entry_backup;
1835 return update_size(pb, pos);
1838 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1840 int i, has_audio = 0, has_video = 0;
1841 int64_t pos = avio_tell(pb);
1842 int audio_profile = mov->iods_audio_profile;
1843 int video_profile = mov->iods_video_profile;
1844 for (i = 0; i < mov->nb_streams; i++) {
1845 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1846 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
1847 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
1850 if (audio_profile < 0)
1851 audio_profile = 0xFF - has_audio;
1852 if (video_profile < 0)
1853 video_profile = 0xFF - has_video;
1854 avio_wb32(pb, 0x0); /* size */
1855 ffio_wfourcc(pb, "iods");
1856 avio_wb32(pb, 0); /* version & flags */
1857 put_descr(pb, 0x10, 7);
1858 avio_wb16(pb, 0x004f);
1861 avio_w8(pb, audio_profile);
1862 avio_w8(pb, video_profile);
1864 return update_size(pb, pos);
1867 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1869 avio_wb32(pb, 0x20); /* size */
1870 ffio_wfourcc(pb, "trex");
1871 avio_wb32(pb, 0); /* version & flags */
1872 avio_wb32(pb, track->track_id); /* track ID */
1873 avio_wb32(pb, 1); /* default sample description index */
1874 avio_wb32(pb, 0); /* default sample duration */
1875 avio_wb32(pb, 0); /* default sample size */
1876 avio_wb32(pb, 0); /* default sample flags */
1880 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1882 int64_t pos = avio_tell(pb);
1884 avio_wb32(pb, 0x0); /* size */
1885 ffio_wfourcc(pb, "mvex");
1886 for (i = 0; i < mov->nb_streams; i++)
1887 mov_write_trex_tag(pb, &mov->tracks[i]);
1888 return update_size(pb, pos);
1891 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1893 int max_track_id = 1, i;
1894 int64_t max_track_len_temp, max_track_len = 0;
1897 for (i = 0; i < mov->nb_streams; i++) {
1898 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1899 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1901 mov->tracks[i].timescale,
1903 if (max_track_len < max_track_len_temp)
1904 max_track_len = max_track_len_temp;
1905 if (max_track_id < mov->tracks[i].track_id)
1906 max_track_id = mov->tracks[i].track_id;
1909 /* If using delay_moov, make sure the output is the same as if no
1910 * samples had been written yet. */
1911 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1916 version = max_track_len < UINT32_MAX ? 0 : 1;
1917 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1918 ffio_wfourcc(pb, "mvhd");
1919 avio_w8(pb, version);
1920 avio_wb24(pb, 0); /* flags */
1922 avio_wb64(pb, mov->time);
1923 avio_wb64(pb, mov->time);
1925 avio_wb32(pb, mov->time); /* creation time */
1926 avio_wb32(pb, mov->time); /* modification time */
1928 avio_wb32(pb, MOV_TIMESCALE);
1929 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1931 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1932 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1933 avio_wb16(pb, 0); /* reserved */
1934 avio_wb32(pb, 0); /* reserved */
1935 avio_wb32(pb, 0); /* reserved */
1937 /* Matrix structure */
1938 avio_wb32(pb, 0x00010000); /* reserved */
1939 avio_wb32(pb, 0x0); /* reserved */
1940 avio_wb32(pb, 0x0); /* reserved */
1941 avio_wb32(pb, 0x0); /* reserved */
1942 avio_wb32(pb, 0x00010000); /* reserved */
1943 avio_wb32(pb, 0x0); /* reserved */
1944 avio_wb32(pb, 0x0); /* reserved */
1945 avio_wb32(pb, 0x0); /* reserved */
1946 avio_wb32(pb, 0x40000000); /* reserved */
1948 avio_wb32(pb, 0); /* reserved (preview time) */
1949 avio_wb32(pb, 0); /* reserved (preview duration) */
1950 avio_wb32(pb, 0); /* reserved (poster time) */
1951 avio_wb32(pb, 0); /* reserved (selection time) */
1952 avio_wb32(pb, 0); /* reserved (selection duration) */
1953 avio_wb32(pb, 0); /* reserved (current time) */
1954 avio_wb32(pb, max_track_id + 1); /* Next track id */
1958 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1961 avio_wb32(pb, 33); /* size */
1962 ffio_wfourcc(pb, "hdlr");
1965 ffio_wfourcc(pb, "mdir");
1966 ffio_wfourcc(pb, "appl");
1973 /* helper function to write a data tag with the specified string as data */
1974 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1977 int size = 16 + strlen(data);
1978 avio_wb32(pb, size); /* size */
1979 ffio_wfourcc(pb, "data");
1982 avio_write(pb, data, strlen(data));
1986 lang = ff_mov_iso639_to_lang("und", 1);
1987 avio_wb16(pb, strlen(data)); /* string length */
1988 avio_wb16(pb, lang);
1989 avio_write(pb, data, strlen(data));
1990 return strlen(data) + 4;
1994 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1995 const char *value, int lang, int long_style)
1998 if (value && value[0]) {
1999 int64_t pos = avio_tell(pb);
2000 avio_wb32(pb, 0); /* size */
2001 ffio_wfourcc(pb, name);
2002 mov_write_string_data_tag(pb, value, lang, long_style);
2003 size = update_size(pb, pos);
2008 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
2009 const char *tag, int *lang)
2012 AVDictionaryEntry *t, *t2 = NULL;
2017 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2020 len = strlen(t->key);
2021 snprintf(tag2, sizeof(tag2), "%s-", tag);
2022 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2023 len2 = strlen(t2->key);
2024 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2025 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2033 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2034 const char *name, const char *tag,
2038 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
2041 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2044 /* 3GPP TS 26.244 */
2045 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
2048 int64_t pos = avio_tell(pb);
2049 double latitude, longitude, altitude;
2050 int32_t latitude_fix, longitude_fix, altitude_fix;
2051 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
2052 const char *ptr, *place = "";
2054 const char *astronomical_body = "earth";
2059 longitude = strtod(ptr, &end);
2061 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2065 latitude = strtod(ptr, &end);
2067 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2071 altitude = strtod(ptr, &end);
2072 /* If no altitude was present, the default 0 should be fine */
2076 latitude_fix = (int32_t) ((1 << 16) * latitude);
2077 longitude_fix = (int32_t) ((1 << 16) * longitude);
2078 altitude_fix = (int32_t) ((1 << 16) * altitude);
2080 avio_wb32(pb, 0); /* size */
2081 ffio_wfourcc(pb, "loci"); /* type */
2082 avio_wb32(pb, 0); /* version + flags */
2083 avio_wb16(pb, lang);
2084 avio_write(pb, place, strlen(place) + 1);
2085 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
2086 avio_wb32(pb, latitude_fix);
2087 avio_wb32(pb, longitude_fix);
2088 avio_wb32(pb, altitude_fix);
2089 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
2090 avio_w8(pb, 0); /* additional notes, null terminated string */
2092 return update_size(pb, pos);
2095 /* iTunes track number */
2096 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2099 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2100 int size = 0, track = t ? atoi(t->value) : 0;
2102 avio_wb32(pb, 32); /* size */
2103 ffio_wfourcc(pb, "trkn");
2104 avio_wb32(pb, 24); /* size */
2105 ffio_wfourcc(pb, "data");
2106 avio_wb32(pb, 0); // 8 bytes empty
2108 avio_wb16(pb, 0); // empty
2109 avio_wb16(pb, track); // track number
2110 avio_wb16(pb, 0); // total track number
2111 avio_wb16(pb, 0); // empty
2117 /* iTunes meta data list */
2118 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2121 int64_t pos = avio_tell(pb);
2122 avio_wb32(pb, 0); /* size */
2123 ffio_wfourcc(pb, "ilst");
2124 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2125 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2126 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2127 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2128 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2129 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2130 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2131 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2132 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2134 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2135 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2136 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2137 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2138 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2139 mov_write_string_metadata(s, pb, "desc", "description",1);
2140 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2141 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2142 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2143 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2144 mov_write_trkn_tag(pb, mov, s);
2145 return update_size(pb, pos);
2148 /* iTunes meta data tag */
2149 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2153 int64_t pos = avio_tell(pb);
2154 avio_wb32(pb, 0); /* size */
2155 ffio_wfourcc(pb, "meta");
2157 mov_write_itunes_hdlr_tag(pb, mov, s);
2158 mov_write_ilst_tag(pb, mov, s);
2159 size = update_size(pb, pos);
2163 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2167 GET_UTF8(val, *b++, return -1;)
2170 avio_wb16(pb, 0x00);
2174 static uint16_t language_code(const char *str)
2176 return (((str[0] - 0x60) & 0x1F) << 10) +
2177 (((str[1] - 0x60) & 0x1F) << 5) +
2178 (( str[2] - 0x60) & 0x1F);
2181 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2182 const char *tag, const char *str)
2184 int64_t pos = avio_tell(pb);
2185 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2186 if (!t || !utf8len(t->value))
2188 avio_wb32(pb, 0); /* size */
2189 ffio_wfourcc(pb, tag); /* type */
2190 avio_wb32(pb, 0); /* version + flags */
2191 if (!strcmp(tag, "yrrc"))
2192 avio_wb16(pb, atoi(t->value));
2194 avio_wb16(pb, language_code("eng")); /* language */
2195 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2196 if (!strcmp(tag, "albm") &&
2197 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2198 avio_w8(pb, atoi(t->value));
2200 return update_size(pb, pos);
2203 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2205 int64_t pos = avio_tell(pb);
2206 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2208 avio_wb32(pb, 0); // size
2209 ffio_wfourcc(pb, "chpl");
2210 avio_wb32(pb, 0x01000000); // version + flags
2211 avio_wb32(pb, 0); // unknown
2212 avio_w8(pb, nb_chapters);
2214 for (i = 0; i < nb_chapters; i++) {
2215 AVChapter *c = s->chapters[i];
2216 AVDictionaryEntry *t;
2217 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2219 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2220 int len = FFMIN(strlen(t->value), 255);
2222 avio_write(pb, t->value, len);
2226 return update_size(pb, pos);
2229 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2232 AVIOContext *pb_buf;
2236 ret = avio_open_dyn_buf(&pb_buf);
2240 if (mov->mode & MODE_3GP) {
2241 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2242 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2243 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2244 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2245 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2246 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2247 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2248 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2249 mov_write_loci_tag(s, pb_buf);
2250 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2251 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2252 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2253 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2254 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2255 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2256 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2257 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2258 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2259 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2260 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2261 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2262 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2263 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
2265 /* iTunes meta data */
2266 mov_write_meta_tag(pb_buf, mov, s);
2267 mov_write_loci_tag(s, pb_buf);
2270 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2271 mov_write_chpl_tag(pb_buf, s);
2273 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2274 avio_wb32(pb, size + 8);
2275 ffio_wfourcc(pb, "udta");
2276 avio_write(pb, buf, size);
2283 static void mov_write_psp_udta_tag(AVIOContext *pb,
2284 const char *str, const char *lang, int type)
2286 int len = utf8len(str) + 1;
2289 avio_wb16(pb, len * 2 + 10); /* size */
2290 avio_wb32(pb, type); /* type */
2291 avio_wb16(pb, language_code(lang)); /* language */
2292 avio_wb16(pb, 0x01); /* ? */
2293 ascii_to_wc(pb, str);
2296 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2298 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2302 pos = avio_tell(pb);
2303 avio_wb32(pb, 0); /* size placeholder*/
2304 ffio_wfourcc(pb, "uuid");
2305 ffio_wfourcc(pb, "USMT");
2306 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2307 avio_wb32(pb, 0xbb88695c);
2308 avio_wb32(pb, 0xfac9c740);
2310 pos2 = avio_tell(pb);
2311 avio_wb32(pb, 0); /* size placeholder*/
2312 ffio_wfourcc(pb, "MTDT");
2316 avio_wb16(pb, 0x0C); /* size */
2317 avio_wb32(pb, 0x0B); /* type */
2318 avio_wb16(pb, language_code("und")); /* language */
2319 avio_wb16(pb, 0x0); /* ? */
2320 avio_wb16(pb, 0x021C); /* data */
2322 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2323 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2324 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2326 update_size(pb, pos2);
2327 return update_size(pb, pos);
2333 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2337 int64_t pos = avio_tell(pb);
2338 avio_wb32(pb, 0); /* size placeholder*/
2339 ffio_wfourcc(pb, "moov");
2341 for (i = 0; i < mov->nb_streams; i++) {
2342 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2345 mov->tracks[i].time = mov->time;
2346 mov->tracks[i].track_id = i + 1;
2349 if (mov->chapter_track)
2350 for (i = 0; i < s->nb_streams; i++) {
2351 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2352 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2354 for (i = 0; i < mov->nb_streams; i++) {
2355 MOVTrack *track = &mov->tracks[i];
2356 if (track->tag == MKTAG('r','t','p',' ')) {
2357 track->tref_tag = MKTAG('h','i','n','t');
2358 track->tref_id = mov->tracks[track->src_track].track_id;
2359 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2360 int * fallback, size;
2361 fallback = (int*)av_stream_get_side_data(track->st,
2362 AV_PKT_DATA_FALLBACK_TRACK,
2364 if (fallback != NULL && size == sizeof(int)) {
2365 if (*fallback >= 0 && *fallback < mov->nb_streams) {
2366 track->tref_tag = MKTAG('f','a','l','l');
2367 track->tref_id = mov->tracks[*fallback].track_id;
2373 mov_write_mvhd_tag(pb, mov);
2374 if (mov->mode != MODE_MOV && !mov->iods_skip)
2375 mov_write_iods_tag(pb, mov);
2376 for (i = 0; i < mov->nb_streams; i++) {
2377 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2378 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2381 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2382 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2384 if (mov->mode == MODE_PSP)
2385 mov_write_uuidusmt_tag(pb, s);
2387 mov_write_udta_tag(pb, mov, s);
2389 return update_size(pb, pos);
2392 static void param_write_int(AVIOContext *pb, const char *name, int value)
2394 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2397 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2399 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2402 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2405 len = FFMIN(sizeof(buf) / 2 - 1, len);
2406 ff_data_to_hex(buf, value, len, 0);
2407 buf[2 * len] = '\0';
2408 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2411 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2413 int64_t pos = avio_tell(pb);
2415 static const uint8_t uuid[] = {
2416 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2417 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2421 ffio_wfourcc(pb, "uuid");
2422 avio_write(pb, uuid, sizeof(uuid));
2425 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2426 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2427 avio_printf(pb, "<head>\n");
2428 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2430 avio_printf(pb, "</head>\n");
2431 avio_printf(pb, "<body>\n");
2432 avio_printf(pb, "<switch>\n");
2433 for (i = 0; i < mov->nb_streams; i++) {
2434 MOVTrack *track = &mov->tracks[i];
2436 /* track->track_id is initialized in write_moov, and thus isn't known
2438 int track_id = i + 1;
2440 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2442 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2447 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2448 track->par->bit_rate);
2449 param_write_int(pb, "systemBitrate", track->par->bit_rate);
2450 param_write_int(pb, "trackID", track_id);
2451 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2452 if (track->par->codec_id == AV_CODEC_ID_H264) {
2454 int size = track->par->extradata_size;
2455 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
2457 param_write_hex(pb, "CodecPrivateData",
2458 ptr ? ptr : track->par->extradata,
2462 param_write_string(pb, "FourCC", "H264");
2463 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
2464 param_write_string(pb, "FourCC", "WVC1");
2465 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2466 track->par->extradata_size);
2468 param_write_int(pb, "MaxWidth", track->par->width);
2469 param_write_int(pb, "MaxHeight", track->par->height);
2470 param_write_int(pb, "DisplayWidth", track->par->width);
2471 param_write_int(pb, "DisplayHeight", track->par->height);
2473 if (track->par->codec_id == AV_CODEC_ID_AAC) {
2474 param_write_string(pb, "FourCC", "AACL");
2475 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
2476 param_write_string(pb, "FourCC", "WMAP");
2478 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2479 track->par->extradata_size);
2480 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2481 track->par->codec_id));
2482 param_write_int(pb, "Channels", track->par->channels);
2483 param_write_int(pb, "SamplingRate", track->par->sample_rate);
2484 param_write_int(pb, "BitsPerSample", 16);
2485 param_write_int(pb, "PacketSize", track->par->block_align ?
2486 track->par->block_align : 4);
2488 avio_printf(pb, "</%s>\n", type);
2490 avio_printf(pb, "</switch>\n");
2491 avio_printf(pb, "</body>\n");
2492 avio_printf(pb, "</smil>\n");
2494 return update_size(pb, pos);
2497 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2500 ffio_wfourcc(pb, "mfhd");
2502 avio_wb32(pb, mov->fragments);
2506 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2508 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2509 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2512 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2513 MOVTrack *track, int64_t moof_offset)
2515 int64_t pos = avio_tell(pb);
2516 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2517 MOV_TFHD_BASE_DATA_OFFSET;
2518 if (!track->entry) {
2519 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2521 flags |= MOV_TFHD_DEFAULT_FLAGS;
2523 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2524 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2525 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2526 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2527 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2530 /* Don't set a default sample size, the silverlight player refuses
2531 * to play files with that set. Don't set a default sample duration,
2532 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2533 * file format says it MUST NOT be set. */
2534 if (track->mode == MODE_ISM)
2535 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2536 MOV_TFHD_BASE_DATA_OFFSET);
2538 avio_wb32(pb, 0); /* size placeholder */
2539 ffio_wfourcc(pb, "tfhd");
2540 avio_w8(pb, 0); /* version */
2541 avio_wb24(pb, flags);
2543 avio_wb32(pb, track->track_id); /* track-id */
2544 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2545 avio_wb64(pb, moof_offset);
2546 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2547 track->default_duration = get_cluster_duration(track, 0);
2548 avio_wb32(pb, track->default_duration);
2550 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2551 track->default_size = track->entry ? track->cluster[0].size : 1;
2552 avio_wb32(pb, track->default_size);
2554 track->default_size = -1;
2556 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2557 /* Set the default flags based on the second sample, if available.
2558 * If the first sample is different, that can be signaled via a separate field. */
2559 if (track->entry > 1)
2560 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2562 track->default_sample_flags =
2563 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
2564 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2565 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2566 avio_wb32(pb, track->default_sample_flags);
2569 return update_size(pb, pos);
2572 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2573 MOVTrack *track, int moof_size,
2576 int64_t pos = avio_tell(pb);
2577 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2580 for (i = first; i < end; i++) {
2581 if (get_cluster_duration(track, i) != track->default_duration)
2582 flags |= MOV_TRUN_SAMPLE_DURATION;
2583 if (track->cluster[i].size != track->default_size)
2584 flags |= MOV_TRUN_SAMPLE_SIZE;
2585 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2586 flags |= MOV_TRUN_SAMPLE_FLAGS;
2588 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2589 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2590 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2591 if (track->flags & MOV_TRACK_CTTS)
2592 flags |= MOV_TRUN_SAMPLE_CTS;
2594 avio_wb32(pb, 0); /* size placeholder */
2595 ffio_wfourcc(pb, "trun");
2596 avio_w8(pb, 0); /* version */
2597 avio_wb24(pb, flags);
2599 avio_wb32(pb, end - first); /* sample count */
2600 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2601 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2603 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2605 avio_wb32(pb, moof_size + 8 + track->data_offset +
2606 track->cluster[first].pos); /* data offset */
2607 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2608 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2610 for (i = first; i < end; i++) {
2611 if (flags & MOV_TRUN_SAMPLE_DURATION)
2612 avio_wb32(pb, get_cluster_duration(track, i));
2613 if (flags & MOV_TRUN_SAMPLE_SIZE)
2614 avio_wb32(pb, track->cluster[i].size);
2615 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2616 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2617 if (flags & MOV_TRUN_SAMPLE_CTS)
2618 avio_wb32(pb, track->cluster[i].cts);
2621 mov->first_trun = 0;
2622 return update_size(pb, pos);
2625 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2627 int64_t pos = avio_tell(pb);
2628 static const uint8_t uuid[] = {
2629 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2630 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2633 avio_wb32(pb, 0); /* size placeholder */
2634 ffio_wfourcc(pb, "uuid");
2635 avio_write(pb, uuid, sizeof(uuid));
2638 avio_wb64(pb, track->start_dts + track->frag_start +
2639 track->cluster[0].cts);
2640 avio_wb64(pb, track->end_pts -
2641 (track->cluster[0].dts + track->cluster[0].cts));
2643 return update_size(pb, pos);
2646 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2647 MOVTrack *track, int entry)
2649 int n = track->nb_frag_info - 1 - entry, i;
2650 int size = 8 + 16 + 4 + 1 + 16*n;
2651 static const uint8_t uuid[] = {
2652 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2653 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2659 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2660 avio_wb32(pb, size);
2661 ffio_wfourcc(pb, "uuid");
2662 avio_write(pb, uuid, sizeof(uuid));
2666 for (i = 0; i < n; i++) {
2667 int index = entry + 1 + i;
2668 avio_wb64(pb, track->frag_info[index].time);
2669 avio_wb64(pb, track->frag_info[index].duration);
2671 if (n < mov->ism_lookahead) {
2672 int free_size = 16 * (mov->ism_lookahead - n);
2673 avio_wb32(pb, free_size);
2674 ffio_wfourcc(pb, "free");
2675 for (i = 0; i < free_size - 8; i++)
2682 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2685 int64_t pos = avio_tell(pb);
2687 for (i = 0; i < mov->ism_lookahead; i++) {
2688 /* Update the tfrf tag for the last ism_lookahead fragments,
2689 * nb_frag_info - 1 is the next fragment to be written. */
2690 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2692 avio_seek(pb, pos, SEEK_SET);
2696 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2700 for (i = 0; i < mov->nb_streams; i++) {
2701 MOVTrack *track = &mov->tracks[i];
2702 MOVFragmentInfo *info;
2703 if ((tracks >= 0 && i != tracks) || !track->entry)
2705 track->nb_frag_info++;
2706 if (track->nb_frag_info >= track->frag_info_capacity) {
2707 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2708 if (av_reallocp_array(&track->frag_info,
2710 sizeof(*track->frag_info)))
2711 return AVERROR(ENOMEM);
2712 track->frag_info_capacity = new_capacity;
2714 info = &track->frag_info[track->nb_frag_info - 1];
2715 info->offset = avio_tell(pb);
2717 // Try to recreate the original pts for the first packet
2718 // from the fields we have stored
2719 info->time = track->start_dts + track->frag_start +
2720 track->cluster[0].cts;
2721 info->duration = track->end_pts -
2722 (track->cluster[0].dts + track->cluster[0].cts);
2723 // If the pts is less than zero, we will have trimmed
2724 // away parts of the media track using an edit list,
2725 // and the corresponding start presentation time is zero.
2726 if (info->time < 0) {
2727 info->duration += info->time;
2730 info->tfrf_offset = 0;
2731 mov_write_tfrf_tags(pb, mov, track);
2736 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
2739 for (i = 0; i < mov->nb_streams; i++) {
2740 MOVTrack *track = &mov->tracks[i];
2741 if ((tracks >= 0 && i != tracks) || !track->entry)
2743 if (track->nb_frag_info > max) {
2744 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
2745 track->nb_frag_info = max;
2750 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2752 int64_t pos = avio_tell(pb);
2754 avio_wb32(pb, 0); /* size */
2755 ffio_wfourcc(pb, "tfdt");
2756 avio_w8(pb, 1); /* version */
2758 avio_wb64(pb, track->frag_start);
2759 return update_size(pb, pos);
2762 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2763 MOVTrack *track, int64_t moof_offset,
2766 int64_t pos = avio_tell(pb);
2768 avio_wb32(pb, 0); /* size placeholder */
2769 ffio_wfourcc(pb, "traf");
2771 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2772 if (mov->mode != MODE_ISM)
2773 mov_write_tfdt_tag(pb, track);
2774 for (i = 1; i < track->entry; i++) {
2775 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2776 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2780 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2781 if (mov->mode == MODE_ISM) {
2782 mov_write_tfxd_tag(pb, track);
2784 if (mov->ism_lookahead) {
2785 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2787 if (track->nb_frag_info > 0) {
2788 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2789 if (!info->tfrf_offset)
2790 info->tfrf_offset = avio_tell(pb);
2792 avio_wb32(pb, 8 + size);
2793 ffio_wfourcc(pb, "free");
2794 for (i = 0; i < size; i++)
2799 return update_size(pb, pos);
2802 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2803 int tracks, int moof_size)
2805 int64_t pos = avio_tell(pb);
2808 avio_wb32(pb, 0); /* size placeholder */
2809 ffio_wfourcc(pb, "moof");
2810 mov->first_trun = 1;
2812 mov_write_mfhd_tag(pb, mov);
2813 for (i = 0; i < mov->nb_streams; i++) {
2814 MOVTrack *track = &mov->tracks[i];
2815 if (tracks >= 0 && i != tracks)
2819 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2822 return update_size(pb, pos);
2825 static int mov_write_sidx_tag(AVIOContext *pb,
2826 MOVTrack *track, int ref_size, int total_sidx_size)
2828 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2829 int64_t presentation_time, duration, offset;
2830 int starts_with_SAP, i, entries;
2834 presentation_time = track->start_dts + track->frag_start +
2835 track->cluster[0].cts;
2836 duration = track->end_pts -
2837 (track->cluster[0].dts + track->cluster[0].cts);
2838 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2840 // pts<0 should be cut away using edts
2841 if (presentation_time < 0) {
2842 duration += presentation_time;
2843 presentation_time = 0;
2846 entries = track->nb_frag_info;
2849 presentation_time = track->frag_info[0].time;
2852 avio_wb32(pb, 0); /* size */
2853 ffio_wfourcc(pb, "sidx");
2854 avio_w8(pb, 1); /* version */
2856 avio_wb32(pb, track->track_id); /* reference_ID */
2857 avio_wb32(pb, track->timescale); /* timescale */
2858 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2859 offset_pos = avio_tell(pb);
2860 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2861 avio_wb16(pb, 0); /* reserved */
2863 avio_wb16(pb, entries); /* reference_count */
2864 for (i = 0; i < entries; i++) {
2865 if (!track->entry) {
2866 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2867 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2869 duration = track->frag_info[i].duration;
2870 ref_size = track->frag_info[i].size;
2871 starts_with_SAP = 1;
2873 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2874 avio_wb32(pb, duration); /* subsegment_duration */
2875 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2878 end_pos = avio_tell(pb);
2879 offset = pos + total_sidx_size - end_pos;
2880 avio_seek(pb, offset_pos, SEEK_SET);
2881 avio_wb64(pb, offset);
2882 avio_seek(pb, end_pos, SEEK_SET);
2883 return update_size(pb, pos);
2886 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2887 int tracks, int ref_size)
2890 AVIOContext *avio_buf;
2892 for (round = 0; round < 2; round++) {
2893 // First run one round to calculate the total size of all
2895 // This would be much simpler if we'd only write one sidx
2896 // atom, for the first track in the moof.
2898 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2903 for (i = 0; i < mov->nb_streams; i++) {
2904 MOVTrack *track = &mov->tracks[i];
2905 if (tracks >= 0 && i != tracks)
2907 // When writing a sidx for the full file, entry is 0, but
2908 // we want to include all tracks. ref_size is 0 in this case,
2909 // since we read it from frag_info instead.
2910 if (!track->entry && ref_size > 0)
2912 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2916 total_size = ffio_close_null_buf(avio_buf);
2921 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2924 AVIOContext *avio_buf;
2927 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2929 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2930 moof_size = ffio_close_null_buf(avio_buf);
2932 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
2933 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2935 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
2936 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
2937 mov->ism_lookahead) {
2938 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2940 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
2941 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
2942 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
2946 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2949 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2951 int64_t pos = avio_tell(pb);
2954 avio_wb32(pb, 0); /* size placeholder */
2955 ffio_wfourcc(pb, "tfra");
2956 avio_w8(pb, 1); /* version */
2959 avio_wb32(pb, track->track_id);
2960 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2961 avio_wb32(pb, track->nb_frag_info);
2962 for (i = 0; i < track->nb_frag_info; i++) {
2963 avio_wb64(pb, track->frag_info[i].time);
2964 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2965 avio_w8(pb, 1); /* traf number */
2966 avio_w8(pb, 1); /* trun number */
2967 avio_w8(pb, 1); /* sample number */
2970 return update_size(pb, pos);
2973 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2975 int64_t pos = avio_tell(pb);
2978 avio_wb32(pb, 0); /* size placeholder */
2979 ffio_wfourcc(pb, "mfra");
2980 /* An empty mfra atom is enough to indicate to the publishing point that
2981 * the stream has ended. */
2982 if (mov->flags & FF_MOV_FLAG_ISML)
2983 return update_size(pb, pos);
2985 for (i = 0; i < mov->nb_streams; i++) {
2986 MOVTrack *track = &mov->tracks[i];
2987 if (track->nb_frag_info)
2988 mov_write_tfra_tag(pb, track);
2992 ffio_wfourcc(pb, "mfro");
2993 avio_wb32(pb, 0); /* version + flags */
2994 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2996 return update_size(pb, pos);
2999 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3001 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3002 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3004 mov->mdat_pos = avio_tell(pb);
3005 avio_wb32(pb, 0); /* size placeholder*/
3006 ffio_wfourcc(pb, "mdat");
3010 /* TODO: This needs to be more general */
3011 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3013 MOVMuxContext *mov = s->priv_data;
3014 int64_t pos = avio_tell(pb);
3015 int has_h264 = 0, has_video = 0;
3019 for (i = 0; i < s->nb_streams; i++) {
3020 AVStream *st = s->streams[i];
3021 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
3023 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
3027 avio_wb32(pb, 0); /* size */
3028 ffio_wfourcc(pb, "ftyp");
3030 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3031 ffio_wfourcc(pb, mov->major_brand);
3032 else if (mov->mode == MODE_3GP) {
3033 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3034 minor = has_h264 ? 0x100 : 0x200;
3035 } else if (mov->mode & MODE_3G2) {
3036 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3037 minor = has_h264 ? 0x20000 : 0x10000;
3038 } else if (mov->mode == MODE_PSP)
3039 ffio_wfourcc(pb, "MSNV");
3040 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3041 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3042 else if (mov->mode == MODE_MP4)
3043 ffio_wfourcc(pb, "isom");
3044 else if (mov->mode == MODE_IPOD)
3045 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3046 else if (mov->mode == MODE_ISM)
3047 ffio_wfourcc(pb, "isml");
3048 else if (mov->mode == MODE_F4V)
3049 ffio_wfourcc(pb, "f4v ");
3051 ffio_wfourcc(pb, "qt ");
3053 avio_wb32(pb, minor);
3055 if (mov->mode == MODE_MOV)
3056 ffio_wfourcc(pb, "qt ");
3057 else if (mov->mode == MODE_ISM) {
3058 ffio_wfourcc(pb, "piff");
3059 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3060 ffio_wfourcc(pb, "isom");
3061 ffio_wfourcc(pb, "iso2");
3063 ffio_wfourcc(pb, "avc1");
3066 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3067 // brand. This is compatible with users that don't understand tfdt.
3068 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3069 ffio_wfourcc(pb, "iso6");
3071 if (mov->mode == MODE_3GP)
3072 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3073 else if (mov->mode & MODE_3G2)
3074 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3075 else if (mov->mode == MODE_PSP)
3076 ffio_wfourcc(pb, "MSNV");
3077 else if (mov->mode == MODE_MP4)
3078 ffio_wfourcc(pb, "mp41");
3080 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3081 ffio_wfourcc(pb, "dash");
3083 return update_size(pb, pos);
3086 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3088 AVStream *video_st = s->streams[0];
3089 AVCodecParameters *video_par = s->streams[0]->codecpar;
3090 AVCodecParameters *audio_par = s->streams[1]->codecpar;
3091 int audio_rate = audio_par->sample_rate;
3092 // TODO: should be avg_frame_rate
3093 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3094 int audio_kbitrate = audio_par->bit_rate / 1000;
3095 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
3097 avio_wb32(pb, 0x94); /* size */
3098 ffio_wfourcc(pb, "uuid");
3099 ffio_wfourcc(pb, "PROF");
3101 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3102 avio_wb32(pb, 0xbb88695c);
3103 avio_wb32(pb, 0xfac9c740);
3105 avio_wb32(pb, 0x0); /* ? */
3106 avio_wb32(pb, 0x3); /* 3 sections ? */
3108 avio_wb32(pb, 0x14); /* size */
3109 ffio_wfourcc(pb, "FPRF");
3110 avio_wb32(pb, 0x0); /* ? */
3111 avio_wb32(pb, 0x0); /* ? */
3112 avio_wb32(pb, 0x0); /* ? */
3114 avio_wb32(pb, 0x2c); /* size */
3115 ffio_wfourcc(pb, "APRF"); /* audio */
3117 avio_wb32(pb, 0x2); /* TrackID */
3118 ffio_wfourcc(pb, "mp4a");
3119 avio_wb32(pb, 0x20f);
3121 avio_wb32(pb, audio_kbitrate);
3122 avio_wb32(pb, audio_kbitrate);
3123 avio_wb32(pb, audio_rate);
3124 avio_wb32(pb, audio_par->channels);
3126 avio_wb32(pb, 0x34); /* size */
3127 ffio_wfourcc(pb, "VPRF"); /* video */
3129 avio_wb32(pb, 0x1); /* TrackID */
3130 if (video_par->codec_id == AV_CODEC_ID_H264) {
3131 ffio_wfourcc(pb, "avc1");
3132 avio_wb16(pb, 0x014D);
3133 avio_wb16(pb, 0x0015);
3135 ffio_wfourcc(pb, "mp4v");
3136 avio_wb16(pb, 0x0000);
3137 avio_wb16(pb, 0x0103);
3140 avio_wb32(pb, video_kbitrate);
3141 avio_wb32(pb, video_kbitrate);
3142 avio_wb32(pb, frame_rate);
3143 avio_wb32(pb, frame_rate);
3144 avio_wb16(pb, video_par->width);
3145 avio_wb16(pb, video_par->height);
3146 avio_wb32(pb, 0x010001); /* ? */
3149 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3151 MOVMuxContext *mov = s->priv_data;
3152 mov_write_ftyp_tag(pb,s);
3153 if (mov->mode == MODE_PSP) {
3154 if (s->nb_streams != 2) {
3155 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3156 return AVERROR(EINVAL);
3158 mov_write_uuidprof_tag(pb, s);
3163 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3166 int i, closed_gop = 0;
3168 for (i = 0; i < pkt->size - 4; i++) {
3169 c = (c << 8) + pkt->data[i];
3170 if (c == 0x1b8) { // gop
3171 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3172 } else if (c == 0x100) { // pic
3173 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3174 if (!temp_ref || closed_gop) // I picture is not reordered
3175 *flags = MOV_SYNC_SAMPLE;
3177 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3184 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3186 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3187 int seq = 0, entry = 0;
3188 int key = pkt->flags & AV_PKT_FLAG_KEY;
3189 start = find_next_marker(pkt->data, end);
3190 for (next = start; next < end; start = next) {
3191 next = find_next_marker(start + 4, end);
3192 switch (AV_RB32(start)) {
3193 case VC1_CODE_SEQHDR:
3196 case VC1_CODE_ENTRYPOINT:
3199 case VC1_CODE_SLICE:
3200 trk->vc1_info.slices = 1;
3204 if (!trk->entry && trk->vc1_info.first_packet_seen)
3205 trk->vc1_info.first_frag_written = 1;
3206 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3207 /* First packet in first fragment */
3208 trk->vc1_info.first_packet_seq = seq;
3209 trk->vc1_info.first_packet_entry = entry;
3210 trk->vc1_info.first_packet_seen = 1;
3211 } else if ((seq && !trk->vc1_info.packet_seq) ||
3212 (entry && !trk->vc1_info.packet_entry)) {
3214 for (i = 0; i < trk->entry; i++)
3215 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3216 trk->has_keyframes = 0;
3218 trk->vc1_info.packet_seq = 1;
3220 trk->vc1_info.packet_entry = 1;
3221 if (!trk->vc1_info.first_frag_written) {
3222 /* First fragment */
3223 if ((!seq || trk->vc1_info.first_packet_seq) &&
3224 (!entry || trk->vc1_info.first_packet_entry)) {
3225 /* First packet had the same headers as this one, readd the
3226 * sync sample flag. */
3227 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3228 trk->has_keyframes = 1;
3232 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3234 else if (trk->vc1_info.packet_seq)
3236 else if (trk->vc1_info.packet_entry)
3239 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3240 trk->has_keyframes++;
3244 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3246 MOVMuxContext *mov = s->priv_data;
3251 if (!track->mdat_buf)
3253 if (!mov->mdat_buf) {
3254 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3257 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3258 track->mdat_buf = NULL;
3260 offset = avio_tell(mov->mdat_buf);
3261 avio_write(mov->mdat_buf, buf, buf_size);
3264 for (i = track->entries_flushed; i < track->entry; i++)
3265 track->cluster[i].pos += offset;
3266 track->entries_flushed = track->entry;
3270 static int mov_flush_fragment(AVFormatContext *s, int force)
3272 MOVMuxContext *mov = s->priv_data;
3273 int i, first_track = -1;
3274 int64_t mdat_size = 0;
3275 int has_video = 0, starts_with_key = 0, first_video_track = 1;
3277 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3280 // Try to fill in the duration of the last packet in each stream
3281 // from queued packets in the interleave queues. If the flushing
3282 // of fragments was triggered automatically by an AVPacket, we
3283 // already have reliable info for the end of that track, but other
3284 // tracks may need to be filled in.
3285 for (i = 0; i < s->nb_streams; i++) {
3286 MOVTrack *track = &mov->tracks[i];
3287 if (!track->end_reliable) {
3289 if (!ff_interleaved_peek(s, i, &pkt, 1)) {
3290 track->track_duration = pkt.dts - track->start_dts;
3291 if (pkt.pts != AV_NOPTS_VALUE)
3292 track->end_pts = pkt.pts;
3294 track->end_pts = pkt.dts;
3299 for (i = 0; i < mov->nb_streams; i++) {
3300 MOVTrack *track = &mov->tracks[i];
3301 if (track->entry <= 1)
3303 // Sample durations are calculated as the diff of dts values,
3304 // but for the last sample in a fragment, we don't know the dts
3305 // of the first sample in the next fragment, so we have to rely
3306 // on what was set as duration in the AVPacket. Not all callers
3307 // set this though, so we might want to replace it with an
3308 // estimate if it currently is zero.
3309 if (get_cluster_duration(track, track->entry - 1) != 0)
3311 // Use the duration (i.e. dts diff) of the second last sample for
3312 // the last one. This is a wild guess (and fatal if it turns out
3313 // to be too long), but probably the best we can do - having a zero
3314 // duration is bad as well.
3315 track->track_duration += get_cluster_duration(track, track->entry - 2);
3316 track->end_pts += get_cluster_duration(track, track->entry - 2);
3317 if (!mov->missing_duration_warned) {
3318 av_log(s, AV_LOG_WARNING,
3319 "Estimating the duration of the last packet in a "
3320 "fragment, consider setting the duration field in "
3321 "AVPacket instead.\n");
3322 mov->missing_duration_warned = 1;
3326 if (!mov->moov_written) {
3327 int64_t pos = avio_tell(s->pb);
3329 AVIOContext *moov_buf;
3333 for (i = 0; i < mov->nb_streams; i++)
3334 if (!mov->tracks[i].entry)
3336 /* Don't write the initial moov unless all tracks have data */
3337 if (i < mov->nb_streams && !force)
3340 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3342 mov_write_moov_tag(moov_buf, mov, s);
3343 buf_size = ffio_close_null_buf(moov_buf);
3344 for (i = 0; i < mov->nb_streams; i++)
3345 mov->tracks[i].data_offset = pos + buf_size + 8;
3347 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
3348 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3349 mov_write_identification(s->pb, s);
3350 mov_write_moov_tag(s->pb, mov, s);
3352 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3353 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3354 mov->reserved_header_pos = avio_tell(s->pb);
3356 mov->moov_written = 1;
3360 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3361 mov->mdat_buf = NULL;
3362 avio_wb32(s->pb, buf_size + 8);
3363 ffio_wfourcc(s->pb, "mdat");
3364 avio_write(s->pb, buf, buf_size);
3367 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3368 mov->reserved_header_pos = avio_tell(s->pb);
3370 mov->moov_written = 1;
3372 for (i = 0; i < mov->nb_streams; i++) {
3373 if (mov->tracks[i].entry)
3374 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3375 mov->tracks[i].track_duration -
3376 mov->tracks[i].cluster[0].dts;
3377 mov->tracks[i].entry = 0;
3378 mov->tracks[i].end_reliable = 0;
3384 if (mov->frag_interleave) {
3385 for (i = 0; i < mov->nb_streams; i++) {
3386 MOVTrack *track = &mov->tracks[i];
3388 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3394 mdat_size = avio_tell(mov->mdat_buf);
3397 for (i = 0; i < mov->nb_streams; i++) {
3398 MOVTrack *track = &mov->tracks[i];
3399 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3400 track->data_offset = 0;
3402 track->data_offset = mdat_size;
3403 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3405 if (first_video_track) {
3407 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3408 first_video_track = 0;
3413 if (track->mdat_buf)
3414 mdat_size += avio_tell(track->mdat_buf);
3415 if (first_track < 0)
3422 avio_write_marker(s->pb,
3423 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
3424 (has_video ? starts_with_key : mov->tracks[first_track].cluster[0].flags & MOV_SYNC_SAMPLE) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
3426 for (i = 0; i < mov->nb_streams; i++) {
3427 MOVTrack *track = &mov->tracks[i];
3428 int buf_size, write_moof = 1, moof_tracks = -1;
3430 int64_t duration = 0;
3433 duration = track->start_dts + track->track_duration -
3434 track->cluster[0].dts;
3435 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3436 if (!track->mdat_buf)
3438 mdat_size = avio_tell(track->mdat_buf);
3441 write_moof = i == first_track;
3447 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3450 avio_wb32(s->pb, mdat_size + 8);
3451 ffio_wfourcc(s->pb, "mdat");
3455 track->frag_start += duration;
3457 track->entries_flushed = 0;
3458 track->end_reliable = 0;
3459 if (!mov->frag_interleave) {
3460 if (!track->mdat_buf)
3462 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3463 track->mdat_buf = NULL;
3467 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3468 mov->mdat_buf = NULL;
3471 avio_write(s->pb, buf, buf_size);
3481 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
3483 MOVMuxContext *mov = s->priv_data;
3484 int had_moov = mov->moov_written;
3485 int ret = mov_flush_fragment(s, force);
3488 // If using delay_moov, the first flush only wrote the moov,
3489 // not the actual moof+mdat pair, thus flush once again.
3490 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3491 ret = mov_flush_fragment(s, force);
3495 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3497 MOVMuxContext *mov = s->priv_data;
3498 AVIOContext *pb = s->pb;
3499 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3500 AVCodecParameters *par = trk->par;
3501 unsigned int samples_in_chunk = 0;
3502 int size = pkt->size, ret = 0;
3503 uint8_t *reformatted_data = NULL;
3505 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3507 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3508 if (mov->frag_interleave && mov->fragments > 0) {
3509 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3510 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3515 if (!trk->mdat_buf) {
3516 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3521 if (!mov->mdat_buf) {
3522 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3529 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
3530 /* We must find out how many AMR blocks there are in one packet */
3531 static uint16_t packed_size[16] =
3532 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3535 while (len < size && samples_in_chunk < 100) {
3536 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3539 if (samples_in_chunk > 1) {
3540 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3543 } else if (trk->sample_size)
3544 samples_in_chunk = size / trk->sample_size;
3546 samples_in_chunk = 1;
3548 /* copy extradata if it exists */
3549 if (trk->vos_len == 0 && par->extradata_size > 0) {
3550 trk->vos_len = par->extradata_size;
3551 trk->vos_data = av_malloc(trk->vos_len);
3552 if (!trk->vos_data) {
3553 ret = AVERROR(ENOMEM);
3556 memcpy(trk->vos_data, par->extradata, trk->vos_len);
3559 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3560 /* from x264 or from bytestream H.264 */
3561 /* NAL reformatting needed */
3562 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3563 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3565 avio_write(pb, reformatted_data, size);
3567 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3569 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3570 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3571 /* extradata is Annex B, assume the bitstream is too and convert it */
3572 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3573 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3574 avio_write(pb, reformatted_data, size);
3576 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3579 avio_write(pb, pkt->data, size);
3582 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
3583 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3584 /* copy frame to create needed atoms */
3585 trk->vos_len = size;
3586 trk->vos_data = av_malloc(size);
3587 if (!trk->vos_data) {
3588 ret = AVERROR(ENOMEM);
3591 memcpy(trk->vos_data, pkt->data, size);
3594 if (trk->entry >= trk->cluster_capacity) {
3595 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3596 if (av_reallocp_array(&trk->cluster, new_capacity,
3597 sizeof(*trk->cluster))) {
3598 ret = AVERROR(ENOMEM);
3601 trk->cluster_capacity = new_capacity;
3604 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3605 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3606 trk->cluster[trk->entry].size = size;
3607 trk->cluster[trk->entry].entries = samples_in_chunk;
3608 trk->cluster[trk->entry].dts = pkt->dts;
3609 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3610 if (!trk->frag_discont) {
3611 /* First packet of a new fragment. We already wrote the duration
3612 * of the last packet of the previous fragment based on track_duration,
3613 * which might not exactly match our dts. Therefore adjust the dts
3614 * of this packet to be what the previous packets duration implies. */
3615 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3616 /* We also may have written the pts and the corresponding duration
3617 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3618 * the next fragment. This means the cts of the first sample must
3619 * be the same in all fragments, unless end_pts was updated by
3620 * the packet causing the fragment to be written. */
3621 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
3622 mov->mode == MODE_ISM)
3623 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3625 /* New fragment, but discontinuous from previous fragments.
3626 * Pretend the duration sum of the earlier fragments is
3627 * pkt->dts - trk->start_dts. */
3628 trk->frag_start = pkt->dts - trk->start_dts;
3629 trk->end_pts = AV_NOPTS_VALUE;
3630 trk->frag_discont = 0;
3633 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3634 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3635 /* Not using edit lists and shifting the first track to start from zero.
3636 * If the other streams start from a later timestamp, we won't be able
3637 * to signal the difference in starting time without an edit list.
3638 * Thus move the timestamp for this first sample to 0, increasing
3639 * its duration instead. */
3640 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3642 if (trk->start_dts == AV_NOPTS_VALUE) {
3643 trk->start_dts = pkt->dts;
3644 if (trk->frag_discont) {
3645 if (mov->use_editlist) {
3646 /* Pretend the whole stream started at pts=0, with earlier fragments
3647 * already written. If the stream started at pts=0, the duration sum
3648 * of earlier fragments would have been pkt->pts. */
3649 trk->frag_start = pkt->pts;
3650 trk->start_dts = pkt->dts - pkt->pts;
3652 /* Pretend the whole stream started at dts=0, with earlier fragments
3653 * already written, with a duration summing up to pkt->dts. */
3654 trk->frag_start = pkt->dts;
3657 trk->frag_discont = 0;
3658 } else if (pkt->dts && mov->moov_written)
3659 av_log(s, AV_LOG_WARNING,
3660 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3661 "already has been written. Set the delay_moov flag to handle "
3663 pkt->stream_index, pkt->dts);
3665 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3667 if (pkt->pts == AV_NOPTS_VALUE) {
3668 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3669 pkt->pts = pkt->dts;
3671 if (pkt->dts != pkt->pts)
3672 trk->flags |= MOV_TRACK_CTTS;
3673 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3674 trk->cluster[trk->entry].flags = 0;
3675 if (trk->start_cts == AV_NOPTS_VALUE)
3676 trk->start_cts = pkt->pts - pkt->dts;
3677 if (trk->end_pts == AV_NOPTS_VALUE)
3678 trk->end_pts = trk->cluster[trk->entry].dts +
3679 trk->cluster[trk->entry].cts + pkt->duration;
3681 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3682 trk->cluster[trk->entry].cts +
3685 if (par->codec_id == AV_CODEC_ID_VC1) {
3686 mov_parse_vc1_frame(pkt, trk);
3687 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3688 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3689 trk->entry > 0) { // force sync sample for the first key frame
3690 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3691 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3692 trk->flags |= MOV_TRACK_STPS;
3694 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3696 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3697 trk->has_keyframes++;
3700 trk->sample_count += samples_in_chunk;
3701 mov->mdat_size += size;
3703 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3704 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3705 reformatted_data, size);
3708 av_free(reformatted_data);
3712 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3715 mov_flush_fragment(s, 1);
3718 MOVMuxContext *mov = s->priv_data;
3719 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3720 AVCodecParameters *par = trk->par;
3721 int64_t frag_duration = 0;
3722 int size = pkt->size;
3724 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3726 for (i = 0; i < s->nb_streams; i++)
3727 mov->tracks[i].frag_discont = 1;
3728 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3732 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
3733 trk->start_dts = pkt->dts;
3734 if (pkt->pts != AV_NOPTS_VALUE)
3735 trk->start_cts = pkt->pts - pkt->dts;
3740 return 0; /* Discard 0 sized packets */
3744 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3745 s->streams[pkt->stream_index]->time_base,
3747 if ((mov->max_fragment_duration &&
3748 frag_duration >= mov->max_fragment_duration) ||
3749 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3750 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3751 par->codec_type == AVMEDIA_TYPE_VIDEO &&
3752 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3753 if (frag_duration >= mov->min_fragment_duration) {
3754 // Set the duration of this track to line up with the next
3755 // sample in this track. This avoids relying on AVPacket
3756 // duration, but only helps for this particular track, not
3757 // for the other ones that are flushed at the same time.
3758 trk->track_duration = pkt->dts - trk->start_dts;
3759 if (pkt->pts != AV_NOPTS_VALUE)
3760 trk->end_pts = pkt->pts;
3762 trk->end_pts = pkt->dts;
3763 trk->end_reliable = 1;
3764 mov_auto_flush_fragment(s, 0);
3768 return ff_mov_write_packet(s, pkt);
3772 // QuickTime chapters involve an additional text track with the chapter names
3773 // as samples, and a tref pointing from the other tracks to the chapter one.
3774 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3776 MOVMuxContext *mov = s->priv_data;
3777 MOVTrack *track = &mov->tracks[tracknum];
3778 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3780 // These properties are required to make QT recognize the chapter track
3781 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3783 track->mode = mov->mode;
3784 track->tag = MKTAG('t','e','x','t');
3785 track->timescale = MOV_TIMESCALE;
3786 track->par = avcodec_parameters_alloc();
3788 return AVERROR(ENOMEM);
3789 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
3790 track->par->extradata = av_malloc(sizeof(chapter_properties));
3791 if (!track->par->extradata)
3792 return AVERROR(ENOMEM);
3793 track->par->extradata_size = sizeof(chapter_properties);
3794 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
3796 for (i = 0; i < s->nb_chapters; i++) {
3797 AVChapter *c = s->chapters[i];
3798 AVDictionaryEntry *t;
3800 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3801 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3802 pkt.duration = end - pkt.dts;
3804 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3805 static const char encd[12] = {
3806 0x00, 0x00, 0x00, 0x0C,
3808 0x00, 0x00, 0x01, 0x00 };
3809 len = strlen(t->value);
3810 pkt.size = len + 2 + 12;
3811 pkt.data = av_malloc(pkt.size);
3813 return AVERROR(ENOMEM);
3814 AV_WB16(pkt.data, len);
3815 memcpy(pkt.data + 2, t->value, len);
3816 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3817 ff_mov_write_packet(s, &pkt);
3818 av_freep(&pkt.data);
3826 * st->disposition controls the "enabled" flag in the tkhd tag.
3827 * QuickTime will not play a track if it is not enabled. So make sure
3828 * that one track of each type (audio, video, subtitle) is enabled.
3830 * Subtitles are special. For audio and video, setting "enabled" also
3831 * makes the track "default" (i.e. it is rendered when played). For
3832 * subtitles, an "enabled" subtitle is not rendered by default, but
3833 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3836 static void enable_tracks(AVFormatContext *s)
3838 MOVMuxContext *mov = s->priv_data;
3840 int enabled[AVMEDIA_TYPE_NB];
3841 int first[AVMEDIA_TYPE_NB];
3843 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3848 for (i = 0; i < s->nb_streams; i++) {
3849 AVStream *st = s->streams[i];
3851 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3852 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
3855 if (first[st->codecpar->codec_type] < 0)
3856 first[st->codecpar->codec_type] = i;
3857 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3858 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3859 enabled[st->codecpar->codec_type]++;
3863 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3865 case AVMEDIA_TYPE_VIDEO:
3866 case AVMEDIA_TYPE_AUDIO:
3867 case AVMEDIA_TYPE_SUBTITLE:
3869 mov->per_stream_grouping = 1;
3870 if (!enabled[i] && first[i] >= 0)
3871 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3877 static void mov_free(AVFormatContext *s)
3879 MOVMuxContext *mov = s->priv_data;
3882 if (mov->chapter_track)
3883 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
3885 for (i = 0; i < mov->nb_streams; i++) {
3886 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3887 ff_mov_close_hinting(&mov->tracks[i]);
3888 av_freep(&mov->tracks[i].cluster);
3889 av_freep(&mov->tracks[i].frag_info);
3891 if (mov->tracks[i].vos_len)
3892 av_free(mov->tracks[i].vos_data);
3895 av_freep(&mov->tracks);
3898 static uint32_t rgb_to_yuv(uint32_t rgb)
3903 r = (rgb >> 16) & 0xFF;
3904 g = (rgb >> 8) & 0xFF;
3907 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3908 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3909 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3911 return (y << 16) | (cr << 8) | cb;
3914 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3917 int i, width = 720, height = 480;
3918 int have_palette = 0, have_size = 0;
3919 uint32_t palette[16];
3920 char *cur = st->codecpar->extradata;
3922 while (cur && *cur) {
3923 if (strncmp("palette:", cur, 8) == 0) {
3925 count = sscanf(cur + 8,
3926 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3927 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3928 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3929 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3930 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3931 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3932 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3933 &palette[12], &palette[13], &palette[14], &palette[15]);
3935 for (i = 0; i < count; i++) {
3936 palette[i] = rgb_to_yuv(palette[i]);
3939 } else if (!strncmp("size:", cur, 5)) {
3940 sscanf(cur + 5, "%dx%d", &width, &height);
3943 if (have_palette && have_size)
3945 cur += strcspn(cur, "\n\r");
3946 cur += strspn(cur, "\n\r");
3949 track->vos_data = av_malloc(16*4);
3950 if (!track->vos_data)
3951 return AVERROR(ENOMEM);
3952 for (i = 0; i < 16; i++) {
3953 AV_WB32(track->vos_data + i * 4, palette[i]);
3955 track->vos_len = 16 * 4;
3957 st->codecpar->width = width;
3958 st->codecpar->height = track->height = height;
3963 static int mov_write_header(AVFormatContext *s)
3965 AVIOContext *pb = s->pb;
3966 MOVMuxContext *mov = s->priv_data;
3967 AVDictionaryEntry *t;
3968 int i, ret, hint_track = 0;
3972 /* Default mode == MP4 */
3973 mov->mode = MODE_MP4;
3976 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3977 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3978 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3979 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3980 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3981 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3982 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3985 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3986 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3988 /* Set the FRAGMENT flag if any of the fragmentation methods are
3990 if (mov->max_fragment_duration || mov->max_fragment_size ||
3991 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3992 FF_MOV_FLAG_FRAG_KEYFRAME |
3993 FF_MOV_FLAG_FRAG_CUSTOM))
3994 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3996 /* Set other implicit flags immediately */
3997 if (mov->mode == MODE_ISM)
3998 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3999 FF_MOV_FLAG_FRAGMENT;
4000 if (mov->flags & FF_MOV_FLAG_DASH)
4001 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4002 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4004 if (mov->use_editlist < 0) {
4005 mov->use_editlist = 1;
4006 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4007 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4008 // If we can avoid needing an edit list by shifting the
4009 // tracks, prefer that over (trying to) write edit lists
4010 // in fragmented output.
4011 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4012 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4013 mov->use_editlist = 0;
4016 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4017 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4018 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4020 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4021 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4023 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
4024 * if the latter is set that's enough and omit_tfhd_offset doesn't
4025 * add anything extra on top of that. */
4026 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4027 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4028 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
4030 if (mov->frag_interleave &&
4031 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
4032 av_log(s, AV_LOG_ERROR,
4033 "Sample interleaving in fragments is mutually exclusive with "
4034 "omit_tfhd_offset and separate_moof\n");
4035 return AVERROR(EINVAL);
4038 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4039 * is enabled, we don't support non-seekable output at all. */
4040 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
4041 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4042 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4043 return AVERROR(EINVAL);
4047 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4048 if ((ret = mov_write_identification(pb, s)) < 0)
4052 mov->nb_streams = s->nb_streams;
4053 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4054 mov->chapter_track = mov->nb_streams++;
4056 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4057 /* Add hint tracks for each audio and video stream */
4058 hint_track = mov->nb_streams;
4059 for (i = 0; i < s->nb_streams; i++) {
4060 AVStream *st = s->streams[i];
4061 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4062 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4068 // Reserve an extra stream for chapters for the case where chapters
4069 // are written in the trailer
4070 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
4072 return AVERROR(ENOMEM);
4074 for (i = 0; i < s->nb_streams; i++) {
4075 AVStream *st= s->streams[i];
4076 MOVTrack *track= &mov->tracks[i];
4077 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4080 track->par = st->codecpar;
4081 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4082 if (track->language < 0)
4083 track->language = 0;
4084 track->mode = mov->mode;
4085 track->tag = mov_find_codec_tag(s, track);
4087 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
4088 "codec not currently supported in container\n", i);
4091 /* If hinting of this track is enabled by a later hint track,
4092 * this is updated. */
4093 track->hint_track = -1;
4094 track->start_dts = AV_NOPTS_VALUE;
4095 track->start_cts = AV_NOPTS_VALUE;
4096 track->end_pts = AV_NOPTS_VALUE;
4097 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
4098 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4099 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4100 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4101 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
4102 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4105 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4107 track->timescale = st->time_base.den;
4108 if (track->mode == MODE_MOV && track->timescale > 100000)
4109 av_log(s, AV_LOG_WARNING,
4110 "WARNING codec timebase is very high. If duration is too long,\n"
4111 "file may not be playable by quicktime. Specify a shorter timebase\n"
4112 "or choose different container.\n");
4113 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4114 track->timescale = st->codecpar->sample_rate;
4115 /* set sample_size for PCM and ADPCM */
4116 if (av_get_bits_per_sample(st->codecpar->codec_id) ||
4117 st->codecpar->codec_id == AV_CODEC_ID_ILBC) {
4118 if (!st->codecpar->block_align) {
4119 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
4122 track->sample_size = st->codecpar->block_align;
4124 /* set audio_vbr for compressed audio */
4125 if (av_get_bits_per_sample(st->codecpar->codec_id) < 8) {
4126 track->audio_vbr = 1;
4128 if (track->mode != MODE_MOV &&
4129 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4130 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4131 i, track->par->sample_rate);
4134 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4135 track->timescale = st->time_base.den;
4136 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
4137 track->timescale = st->time_base.den;
4140 track->height = st->codecpar->height;
4141 /* The ism specific timescale isn't mandatory, but is assumed by
4142 * some tools, such as mp4split. */
4143 if (mov->mode == MODE_ISM)
4144 track->timescale = 10000000;
4146 avpriv_set_pts_info(st, 64, 1, track->timescale);
4148 /* copy extradata if it exists */
4149 if (st->codecpar->extradata_size) {
4150 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4151 mov_create_dvd_sub_decoder_specific_info(track, st);
4153 track->vos_len = st->codecpar->extradata_size;
4154 track->vos_data = av_malloc(track->vos_len);
4155 if (!track->vos_data)
4157 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
4164 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4165 /* If no fragmentation options have been set, set a default. */
4166 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4167 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4168 !mov->max_fragment_duration && !mov->max_fragment_size)
4169 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4171 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4172 mov->reserved_header_pos = avio_tell(pb);
4173 mov_write_mdat_tag(pb, mov);
4176 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4177 mov->time = ff_iso8601_to_unix_time(t->value);
4179 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4181 if (mov->chapter_track)
4182 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4185 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4186 /* Initialize the hint tracks for each audio and video stream */
4187 for (i = 0; i < s->nb_streams; i++) {
4188 AVStream *st = s->streams[i];
4189 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4190 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4191 ff_mov_init_hinting(s, hint_track, i);
4199 if (mov->flags & FF_MOV_FLAG_ISML)
4200 mov_write_isml_manifest(pb, mov);
4202 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4203 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4204 mov_write_moov_tag(pb, mov, s);
4206 mov->moov_written = 1;
4207 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4208 mov->reserved_header_pos = avio_tell(pb);
4217 static int get_moov_size(AVFormatContext *s)
4220 AVIOContext *moov_buf;
4221 MOVMuxContext *mov = s->priv_data;
4223 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4225 mov_write_moov_tag(moov_buf, mov, s);
4226 return ffio_close_null_buf(moov_buf);
4229 static int get_sidx_size(AVFormatContext *s)
4233 MOVMuxContext *mov = s->priv_data;
4235 if ((ret = ffio_open_null_buf(&buf)) < 0)
4237 mov_write_sidx_tags(buf, mov, -1, 0);
4238 return ffio_close_null_buf(buf);
4242 * This function gets the moov size if moved to the top of the file: the chunk
4243 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4244 * entries) when the moov is moved to the beginning, so the size of the moov
4245 * would change. It also updates the chunk offset tables.
4247 static int compute_moov_size(AVFormatContext *s)
4249 int i, moov_size, moov_size2;
4250 MOVMuxContext *mov = s->priv_data;
4252 moov_size = get_moov_size(s);
4256 for (i = 0; i < mov->nb_streams; i++)
4257 mov->tracks[i].data_offset += moov_size;
4259 moov_size2 = get_moov_size(s);
4263 /* if the size changed, we just switched from stco to co64 and need to
4264 * update the offsets */
4265 if (moov_size2 != moov_size)
4266 for (i = 0; i < mov->nb_streams; i++)
4267 mov->tracks[i].data_offset += moov_size2 - moov_size;
4272 static int compute_sidx_size(AVFormatContext *s)
4275 MOVMuxContext *mov = s->priv_data;
4277 sidx_size = get_sidx_size(s);
4281 for (i = 0; i < mov->nb_streams; i++)
4282 mov->tracks[i].data_offset += sidx_size;
4287 static int shift_data(AVFormatContext *s)
4289 int ret = 0, moov_size;
4290 MOVMuxContext *mov = s->priv_data;
4291 int64_t pos, pos_end = avio_tell(s->pb);
4292 uint8_t *buf, *read_buf[2];
4293 int read_buf_id = 0;
4295 AVIOContext *read_pb;
4297 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4298 moov_size = compute_sidx_size(s);
4300 moov_size = compute_moov_size(s);
4304 buf = av_malloc(moov_size * 2);
4306 return AVERROR(ENOMEM);
4308 read_buf[1] = buf + moov_size;
4310 /* Shift the data: the AVIO context of the output can only be used for
4311 * writing, so we re-open the same output, but for reading. It also avoids
4312 * a read/seek/write/seek back and forth. */
4314 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
4316 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4317 "the second pass (faststart)\n", s->filename);
4321 /* mark the end of the shift to up to the last data we wrote, and get ready
4323 pos_end = avio_tell(s->pb);
4324 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4326 /* start reading at where the new moov will be placed */
4327 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4328 pos = avio_tell(read_pb);
4330 #define READ_BLOCK do { \
4331 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4335 /* shift data by chunk of at most moov_size */
4340 n = read_size[read_buf_id];
4343 avio_write(s->pb, read_buf[read_buf_id], n);
4345 } while (pos < pos_end);
4346 ff_format_io_close(s, &read_pb);
4353 static int mov_write_trailer(AVFormatContext *s)
4355 MOVMuxContext *mov = s->priv_data;
4356 AVIOContext *pb = s->pb;
4361 // If there were no chapters when the header was written, but there
4362 // are chapters now, write them in the trailer. This only works
4363 // when we are not doing fragments.
4364 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4365 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4366 mov->chapter_track = mov->nb_streams++;
4367 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4372 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4373 moov_pos = avio_tell(pb);
4375 /* Write size of mdat tag */
4376 if (mov->mdat_size + 8 <= UINT32_MAX) {
4377 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4378 avio_wb32(pb, mov->mdat_size + 8);
4380 /* overwrite 'wide' placeholder atom */
4381 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4382 /* special value: real atom size will be 64 bit value after
4385 ffio_wfourcc(pb, "mdat");
4386 avio_wb64(pb, mov->mdat_size + 16);
4388 avio_seek(pb, moov_pos, SEEK_SET);
4390 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4391 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4392 res = shift_data(s);
4394 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4395 mov_write_moov_tag(pb, mov, s);
4398 mov_write_moov_tag(pb, mov, s);
4401 mov_auto_flush_fragment(s, 1);
4402 for (i = 0; i < mov->nb_streams; i++)
4403 mov->tracks[i].data_offset = 0;
4404 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
4405 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4406 res = shift_data(s);
4408 int64_t end = avio_tell(pb);
4409 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4410 mov_write_sidx_tags(pb, mov, -1, 0);
4411 avio_seek(pb, end, SEEK_SET);
4412 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4413 mov_write_mfra_tag(pb, mov);
4415 } else if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
4416 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4417 mov_write_mfra_tag(pb, mov);
4427 #if CONFIG_MOV_MUXER
4429 AVOutputFormat ff_mov_muxer = {
4431 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4432 .extensions = "mov",
4433 .priv_data_size = sizeof(MOVMuxContext),
4434 .audio_codec = AV_CODEC_ID_AAC,
4435 .video_codec = CONFIG_LIBX264_ENCODER ?
4436 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4437 .write_header = mov_write_header,
4438 .write_packet = mov_write_packet,
4439 .write_trailer = mov_write_trailer,
4440 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4441 .codec_tag = (const AVCodecTag* const []){
4442 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4444 .priv_class = &mov_muxer_class,
4447 #if CONFIG_TGP_MUXER
4449 AVOutputFormat ff_tgp_muxer = {
4451 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4452 .extensions = "3gp",
4453 .priv_data_size = sizeof(MOVMuxContext),
4454 .audio_codec = AV_CODEC_ID_AMR_NB,
4455 .video_codec = AV_CODEC_ID_H263,
4456 .write_header = mov_write_header,
4457 .write_packet = mov_write_packet,
4458 .write_trailer = mov_write_trailer,
4459 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4460 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4461 .priv_class = &tgp_muxer_class,
4464 #if CONFIG_MP4_MUXER
4466 AVOutputFormat ff_mp4_muxer = {
4468 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4469 .mime_type = "application/mp4",
4470 .extensions = "mp4",
4471 .priv_data_size = sizeof(MOVMuxContext),
4472 .audio_codec = AV_CODEC_ID_AAC,
4473 .video_codec = CONFIG_LIBX264_ENCODER ?
4474 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4475 .write_header = mov_write_header,
4476 .write_packet = mov_write_packet,
4477 .write_trailer = mov_write_trailer,
4478 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4479 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4480 .priv_class = &mp4_muxer_class,
4483 #if CONFIG_PSP_MUXER
4485 AVOutputFormat ff_psp_muxer = {
4487 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4488 .extensions = "mp4,psp",
4489 .priv_data_size = sizeof(MOVMuxContext),
4490 .audio_codec = AV_CODEC_ID_AAC,
4491 .video_codec = CONFIG_LIBX264_ENCODER ?
4492 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4493 .write_header = mov_write_header,
4494 .write_packet = mov_write_packet,
4495 .write_trailer = mov_write_trailer,
4496 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4497 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4498 .priv_class = &psp_muxer_class,
4501 #if CONFIG_TG2_MUXER
4503 AVOutputFormat ff_tg2_muxer = {
4505 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4506 .extensions = "3g2",
4507 .priv_data_size = sizeof(MOVMuxContext),
4508 .audio_codec = AV_CODEC_ID_AMR_NB,
4509 .video_codec = AV_CODEC_ID_H263,
4510 .write_header = mov_write_header,
4511 .write_packet = mov_write_packet,
4512 .write_trailer = mov_write_trailer,
4513 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4514 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4515 .priv_class = &tg2_muxer_class,
4518 #if CONFIG_IPOD_MUXER
4520 AVOutputFormat ff_ipod_muxer = {
4522 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4523 .mime_type = "application/mp4",
4524 .extensions = "m4v,m4a",
4525 .priv_data_size = sizeof(MOVMuxContext),
4526 .audio_codec = AV_CODEC_ID_AAC,
4527 .video_codec = AV_CODEC_ID_H264,
4528 .write_header = mov_write_header,
4529 .write_packet = mov_write_packet,
4530 .write_trailer = mov_write_trailer,
4531 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4532 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4533 .priv_class = &ipod_muxer_class,
4536 #if CONFIG_ISMV_MUXER
4538 AVOutputFormat ff_ismv_muxer = {
4540 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4541 .mime_type = "application/mp4",
4542 .extensions = "ismv,isma",
4543 .priv_data_size = sizeof(MOVMuxContext),
4544 .audio_codec = AV_CODEC_ID_AAC,
4545 .video_codec = AV_CODEC_ID_H264,
4546 .write_header = mov_write_header,
4547 .write_packet = mov_write_packet,
4548 .write_trailer = mov_write_trailer,
4549 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4550 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4551 .priv_class = &ismv_muxer_class,
4554 #if CONFIG_F4V_MUXER
4556 AVOutputFormat ff_f4v_muxer = {
4558 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4559 .mime_type = "application/f4v",
4560 .extensions = "f4v",
4561 .priv_data_size = sizeof(MOVMuxContext),
4562 .audio_codec = AV_CODEC_ID_AAC,
4563 .video_codec = AV_CODEC_ID_H264,
4564 .write_header = mov_write_header,
4565 .write_packet = mov_write_packet,
4566 .write_trailer = mov_write_trailer,
4567 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4568 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4569 .priv_class = &f4v_muxer_class,