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"
35 #include "libavcodec/bitstream.h"
36 #include "libavcodec/put_bits.h"
37 #include "libavcodec/vc1_common.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/intfloat.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/opt.h"
43 #include "libavutil/dict.h"
48 static const AVOption options[] = {
49 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
50 { "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" },
51 { "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" },
52 { "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" },
53 { "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" },
54 { "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" },
55 { "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" },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 { "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" },
64 { "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" },
65 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
66 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
67 { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
68 { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
69 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
70 { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
71 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72 { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
73 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
74 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
75 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
76 { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
80 #define MOV_CLASS(flavor)\
81 static const AVClass flavor ## _muxer_class = {\
82 .class_name = #flavor " muxer",\
83 .item_name = av_default_item_name,\
85 .version = LIBAVUTIL_VERSION_INT,\
88 static int utf8len(const uint8_t *b)
93 GET_UTF8(val, *b++, return -1;)
99 //FIXME support 64 bit variant with wide placeholders
100 static int64_t update_size(AVIOContext *pb, int64_t pos)
102 int64_t curpos = avio_tell(pb);
103 avio_seek(pb, pos, SEEK_SET);
104 avio_wb32(pb, curpos - pos); /* rewrite size */
105 avio_seek(pb, curpos, SEEK_SET);
110 static int co64_required(const MOVTrack *track)
112 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
117 /* Chunk offset atom */
118 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
121 int mode64 = co64_required(track); // use 32 bit size variant if possible
122 int64_t pos = avio_tell(pb);
123 avio_wb32(pb, 0); /* size */
125 ffio_wfourcc(pb, "co64");
127 ffio_wfourcc(pb, "stco");
128 avio_wb32(pb, 0); /* version & flags */
129 avio_wb32(pb, track->entry); /* entry count */
130 for (i = 0; i < track->entry; i++) {
132 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
134 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
136 return update_size(pb, pos);
139 /* Sample size atom */
140 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
143 int i, j, entries = 0, tst = -1, oldtst = -1;
145 int64_t pos = avio_tell(pb);
146 avio_wb32(pb, 0); /* size */
147 ffio_wfourcc(pb, "stsz");
148 avio_wb32(pb, 0); /* version & flags */
150 for (i = 0; i < track->entry; i++) {
151 tst = track->cluster[i].size / track->cluster[i].entries;
152 if (oldtst != -1 && tst != oldtst)
155 entries += track->cluster[i].entries;
157 if (equalChunks && track->entry) {
158 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
159 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
160 avio_wb32(pb, sSize); // sample size
161 avio_wb32(pb, entries); // sample count
163 avio_wb32(pb, 0); // sample size
164 avio_wb32(pb, entries); // sample count
165 for (i = 0; i < track->entry; i++) {
166 for (j = 0; j < track->cluster[i].entries; j++) {
167 avio_wb32(pb, track->cluster[i].size /
168 track->cluster[i].entries);
172 return update_size(pb, pos);
175 /* Sample to chunk atom */
176 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
178 int index = 0, oldval = -1, i;
179 int64_t entryPos, curpos;
181 int64_t pos = avio_tell(pb);
182 avio_wb32(pb, 0); /* size */
183 ffio_wfourcc(pb, "stsc");
184 avio_wb32(pb, 0); // version & flags
185 entryPos = avio_tell(pb);
186 avio_wb32(pb, track->entry); // entry count
187 for (i = 0; i < track->entry; i++) {
188 if (oldval != track->cluster[i].samples_in_chunk) {
189 avio_wb32(pb, i + 1); // first chunk
190 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
191 avio_wb32(pb, 0x1); // sample description index
192 oldval = track->cluster[i].samples_in_chunk;
196 curpos = avio_tell(pb);
197 avio_seek(pb, entryPos, SEEK_SET);
198 avio_wb32(pb, index); // rewrite size
199 avio_seek(pb, curpos, SEEK_SET);
201 return update_size(pb, pos);
204 /* Sync sample atom */
205 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
207 int64_t curpos, entryPos;
209 int64_t pos = avio_tell(pb);
210 avio_wb32(pb, 0); // size
211 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
212 avio_wb32(pb, 0); // version & flags
213 entryPos = avio_tell(pb);
214 avio_wb32(pb, track->entry); // entry count
215 for (i = 0; i < track->entry; i++) {
216 if (track->cluster[i].flags & flag) {
217 avio_wb32(pb, i + 1);
221 curpos = avio_tell(pb);
222 avio_seek(pb, entryPos, SEEK_SET);
223 avio_wb32(pb, index); // rewrite size
224 avio_seek(pb, curpos, SEEK_SET);
225 return update_size(pb, pos);
228 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
230 avio_wb32(pb, 0x11); /* size */
231 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
232 else ffio_wfourcc(pb, "damr");
233 ffio_wfourcc(pb, "FFMP");
234 avio_w8(pb, 0); /* decoder version */
236 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
237 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
238 avio_w8(pb, 0x01); /* Frames per sample */
242 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
247 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
249 if (track->vos_len < 7)
253 ffio_wfourcc(pb, "dac3");
255 bitstream_init8(&bc, track->vos_data + 4, track->vos_len - 4);
256 fscod = bitstream_read(&bc, 2);
257 frmsizecod = bitstream_read(&bc, 6);
258 bsid = bitstream_read(&bc, 5);
259 bsmod = bitstream_read(&bc, 3);
260 acmod = bitstream_read(&bc, 3);
262 bitstream_skip(&bc, 2); // dsurmod
264 if ((acmod & 1) && acmod != 1)
265 bitstream_skip(&bc, 2); // cmixlev
267 bitstream_skip(&bc, 2); // surmixlev
269 lfeon = bitstream_read_bit(&bc);
271 init_put_bits(&pbc, buf, sizeof(buf));
272 put_bits(&pbc, 2, fscod);
273 put_bits(&pbc, 5, bsid);
274 put_bits(&pbc, 3, bsmod);
275 put_bits(&pbc, 3, acmod);
276 put_bits(&pbc, 1, lfeon);
277 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
278 put_bits(&pbc, 5, 0); // reserved
280 flush_put_bits(&pbc);
281 avio_write(pb, buf, sizeof(buf));
287 * This function writes extradata "as is".
288 * Extradata must be formatted like a valid atom (with size and tag).
290 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
292 avio_write(pb, track->par->extradata, track->par->extradata_size);
293 return track->par->extradata_size;
296 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
301 avio_w8(pb, (size >> (7 * i)) | 0x80);
302 avio_w8(pb, size & 0x7F);
305 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
307 AVCPBProperties *props;
308 int64_t pos = avio_tell(pb);
309 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
311 avio_wb32(pb, 0); // size
312 ffio_wfourcc(pb, "esds");
313 avio_wb32(pb, 0); // Version
316 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
317 avio_wb16(pb, track->track_id);
318 avio_w8(pb, 0x00); // flags (= no flags)
320 // DecoderConfig descriptor
321 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
323 // Object type indication
324 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
325 track->par->codec_id == AV_CODEC_ID_MP3) &&
326 track->par->sample_rate > 24000)
327 avio_w8(pb, 0x6B); // 11172-3
329 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
331 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
332 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
333 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
334 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
335 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
336 avio_w8(pb, 0x15); // flags (= Audiostream)
338 avio_w8(pb, 0x11); // flags (= Visualstream)
340 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
343 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
345 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)
346 if (!props || !props->min_bitrate || props->max_bitrate != props->min_bitrate)
347 avio_wb32(pb, 0); // vbr
349 avio_wb32(pb, props->max_bitrate); // avg bitrate
351 if (track->vos_len) {
352 // DecoderSpecific info descriptor
353 put_descr(pb, 0x05, track->vos_len);
354 avio_write(pb, track->vos_data, track->vos_len);
358 put_descr(pb, 0x06, 1);
360 return update_size(pb, pos);
363 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
365 int64_t pos = avio_tell(pb);
367 avio_wl32(pb, track->tag); // store it byteswapped
368 track->par->codec_tag = av_bswap16(track->tag >> 16);
369 ff_put_wav_header(s, pb, track->st->codecpar);
370 return update_size(pb, pos);
373 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
375 int64_t pos = avio_tell(pb);
377 ffio_wfourcc(pb, "wfex");
378 ff_put_wav_header(s, pb, track->st->codecpar);
379 return update_size(pb, pos);
382 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
384 uint32_t layout_tag, bitmap;
385 int64_t pos = avio_tell(pb);
387 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
388 track->par->channel_layout,
391 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
392 "lack of channel information\n");
396 avio_wb32(pb, 0); // Size
397 ffio_wfourcc(pb, "chan"); // Type
398 avio_w8(pb, 0); // Version
399 avio_wb24(pb, 0); // Flags
400 avio_wb32(pb, layout_tag); // mChannelLayoutTag
401 avio_wb32(pb, bitmap); // mChannelBitmap
402 avio_wb32(pb, 0); // mNumberChannelDescriptions
404 return update_size(pb, pos);
407 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
409 int64_t pos = avio_tell(pb);
411 avio_wb32(pb, 0); /* size */
412 ffio_wfourcc(pb, "wave");
414 avio_wb32(pb, 12); /* size */
415 ffio_wfourcc(pb, "frma");
416 avio_wl32(pb, track->tag);
418 if (track->par->codec_id == AV_CODEC_ID_AAC) {
419 /* useless atom needed by mplayer, ipod, not needed by quicktime */
420 avio_wb32(pb, 12); /* size */
421 ffio_wfourcc(pb, "mp4a");
423 mov_write_esds_tag(pb, track);
424 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
425 mov_write_amr_tag(pb, track);
426 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
427 mov_write_ac3_tag(pb, track);
428 } else if (track->par->codec_id == AV_CODEC_ID_ALAC) {
429 mov_write_extradata_tag(pb, track);
430 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
431 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
432 mov_write_ms_tag(s, pb, track);
435 avio_wb32(pb, 8); /* size */
436 avio_wb32(pb, 0); /* null tag */
438 return update_size(pb, pos);
441 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
444 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
445 int unescaped_size, seq_found = 0;
446 int level = 0, interlace = 0;
447 int packet_seq = track->vc1_info.packet_seq;
448 int packet_entry = track->vc1_info.packet_entry;
449 int slices = track->vc1_info.slices;
452 if (track->start_dts == AV_NOPTS_VALUE) {
453 /* No packets written yet, vc1_info isn't authoritative yet. */
454 /* Assume inline sequence and entry headers. */
455 packet_seq = packet_entry = 1;
456 av_log(NULL, AV_LOG_WARNING,
457 "moov atom written before any packets, unable to write correct "
458 "dvc1 atom. Set the delay_moov flag to fix this.\n");
461 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
463 return AVERROR(ENOMEM);
464 start = find_next_marker(track->vos_data, end);
465 for (next = start; next < end; start = next) {
468 next = find_next_marker(start + 4, end);
469 size = next - start - 4;
472 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
473 bitstream_init8(&bc, unescaped, unescaped_size);
474 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
475 int profile = bitstream_read(&bc, 2);
476 if (profile != PROFILE_ADVANCED) {
478 return AVERROR(ENOSYS);
481 level = bitstream_read(&bc, 3);
482 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
484 bitstream_skip(&bc, 2 + 3 + 5 + 1 + 2 * 12);
485 bitstream_skip(&bc, 1); /* broadcast */
486 interlace = bitstream_read_bit(&bc);
487 bitstream_skip(&bc, 4); /* tfcntrflag, finterpflag, reserved, psf */
492 return AVERROR(ENOSYS);
495 init_put_bits(&pbc, buf, 7);
496 /* VC1DecSpecStruc */
497 put_bits(&pbc, 4, 12); /* profile - advanced */
498 put_bits(&pbc, 3, level);
499 put_bits(&pbc, 1, 0); /* reserved */
500 /* VC1AdvDecSpecStruc */
501 put_bits(&pbc, 3, level);
502 put_bits(&pbc, 1, 0); /* cbr */
503 put_bits(&pbc, 6, 0); /* reserved */
504 put_bits(&pbc, 1, !interlace); /* no interlace */
505 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
506 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
507 put_bits(&pbc, 1, !slices); /* no slice code */
508 put_bits(&pbc, 1, 0); /* no bframe */
509 put_bits(&pbc, 1, 0); /* reserved */
512 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
513 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
515 put_bits32(&pbc, 0xffffffff);
517 flush_put_bits(&pbc);
524 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
526 uint8_t buf[7] = { 0 };
529 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
532 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
533 ffio_wfourcc(pb, "dvc1");
534 avio_write(pb, buf, sizeof(buf));
535 avio_write(pb, track->vos_data, track->vos_len);
540 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
542 avio_wb32(pb, track->vos_len + 8);
543 ffio_wfourcc(pb, "glbl");
544 avio_write(pb, track->vos_data, track->vos_len);
545 return 8 + track->vos_len;
549 * Compute flags for 'lpcm' tag.
550 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
552 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
555 case AV_CODEC_ID_PCM_F32BE:
556 case AV_CODEC_ID_PCM_F64BE:
558 case AV_CODEC_ID_PCM_F32LE:
559 case AV_CODEC_ID_PCM_F64LE:
561 case AV_CODEC_ID_PCM_U8:
563 case AV_CODEC_ID_PCM_S16BE:
564 case AV_CODEC_ID_PCM_S24BE:
565 case AV_CODEC_ID_PCM_S32BE:
567 case AV_CODEC_ID_PCM_S8:
568 case AV_CODEC_ID_PCM_S16LE:
569 case AV_CODEC_ID_PCM_S24LE:
570 case AV_CODEC_ID_PCM_S32LE:
577 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
581 if (cluster_idx >= track->entry)
584 if (cluster_idx + 1 == track->entry)
585 next_dts = track->track_duration + track->start_dts;
587 next_dts = track->cluster[cluster_idx + 1].dts;
589 return next_dts - track->cluster[cluster_idx].dts;
592 static int get_samples_per_packet(MOVTrack *track)
594 int i, first_duration;
596 /* use 1 for raw PCM */
597 if (!track->audio_vbr)
600 /* check to see if duration is constant for all clusters */
603 first_duration = get_cluster_duration(track, 0);
604 for (i = 1; i < track->entry; i++) {
605 if (get_cluster_duration(track, i) != first_duration)
608 return first_duration;
611 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
613 int64_t pos = avio_tell(pb);
615 uint32_t tag = track->tag;
617 if (track->mode == MODE_MOV) {
618 if (mov_get_lpcm_flags(track->par->codec_id))
619 tag = AV_RL32("lpcm");
623 avio_wb32(pb, 0); /* size */
624 avio_wl32(pb, tag); // store it byteswapped
625 avio_wb32(pb, 0); /* Reserved */
626 avio_wb16(pb, 0); /* Reserved */
627 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
629 /* SoundDescription */
630 avio_wb16(pb, version); /* Version */
631 avio_wb16(pb, 0); /* Revision level */
632 avio_wb32(pb, 0); /* Reserved */
637 avio_wb16(pb, 0xfffe);
639 avio_wb32(pb, 0x00010000);
641 avio_wb64(pb, av_double2int(track->par->sample_rate));
642 avio_wb32(pb, track->par->channels);
643 avio_wb32(pb, 0x7F000000);
644 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
645 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
646 avio_wb32(pb, track->sample_size);
647 avio_wb32(pb, get_samples_per_packet(track));
649 /* reserved for mp4/3gp */
654 avio_wb16(pb, 0); /* packet size (= 0) */
655 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
656 track->par->sample_rate : 0);
657 avio_wb16(pb, 0); /* Reserved */
660 if (track->mode == MODE_MOV &&
661 (track->par->codec_id == AV_CODEC_ID_AAC ||
662 track->par->codec_id == AV_CODEC_ID_AC3 ||
663 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
664 track->par->codec_id == AV_CODEC_ID_ALAC ||
665 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
666 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
667 mov_write_wave_tag(s, pb, track);
668 else if (track->tag == MKTAG('m','p','4','a'))
669 mov_write_esds_tag(pb, track);
670 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
671 mov_write_amr_tag(pb, track);
672 else if (track->par->codec_id == AV_CODEC_ID_AC3)
673 mov_write_ac3_tag(pb, track);
674 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
675 mov_write_extradata_tag(pb, track);
676 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
677 mov_write_wfex_tag(s, pb, track);
678 else if (track->vos_len > 0)
679 mov_write_glbl_tag(pb, track);
681 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
682 mov_write_chan_tag(s, pb, track);
684 return update_size(pb, pos);
687 static int mov_write_d263_tag(AVIOContext *pb)
689 avio_wb32(pb, 0xf); /* size */
690 ffio_wfourcc(pb, "d263");
691 ffio_wfourcc(pb, "FFMP");
692 avio_w8(pb, 0); /* decoder version */
693 /* FIXME use AVCodecContext level/profile, when encoder will set values */
694 avio_w8(pb, 0xa); /* level */
695 avio_w8(pb, 0); /* profile */
699 /* TODO: No idea about these values */
700 static int mov_write_svq3_tag(AVIOContext *pb)
703 ffio_wfourcc(pb, "SMI ");
704 ffio_wfourcc(pb, "SEQH");
706 avio_wb32(pb, 0xe2c0211d);
707 avio_wb32(pb, 0xc0000000);
712 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
714 int64_t pos = avio_tell(pb);
717 ffio_wfourcc(pb, "avcC");
718 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
719 return update_size(pb, pos);
722 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
724 int64_t pos = avio_tell(pb);
727 ffio_wfourcc(pb, "hvcC");
728 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
729 return update_size(pb, pos);
732 /* also used by all avid codecs (dv, imx, meridien) and their variants */
733 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
736 avio_wb32(pb, 24); /* size */
737 ffio_wfourcc(pb, "ACLR");
738 ffio_wfourcc(pb, "ACLR");
739 ffio_wfourcc(pb, "0001");
740 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
741 avio_wb32(pb, 0); /* unknown */
743 avio_wb32(pb, 24); /* size */
744 ffio_wfourcc(pb, "APRG");
745 ffio_wfourcc(pb, "APRG");
746 ffio_wfourcc(pb, "0001");
747 avio_wb32(pb, 1); /* unknown */
748 avio_wb32(pb, 0); /* unknown */
750 avio_wb32(pb, 120); /* size */
751 ffio_wfourcc(pb, "ARES");
752 ffio_wfourcc(pb, "ARES");
753 ffio_wfourcc(pb, "0001");
754 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
755 avio_wb32(pb, track->par->width);
756 /* values below are based on samples created with quicktime and avid codecs */
757 if (track->vos_data[5] & 2) { // interlaced
758 avio_wb32(pb, track->par->height / 2);
759 avio_wb32(pb, 2); /* unknown */
760 avio_wb32(pb, 0); /* unknown */
761 avio_wb32(pb, 4); /* unknown */
763 avio_wb32(pb, track->par->height);
764 avio_wb32(pb, 1); /* unknown */
765 avio_wb32(pb, 0); /* unknown */
766 if (track->par->height == 1080)
767 avio_wb32(pb, 5); /* unknown */
769 avio_wb32(pb, 6); /* unknown */
772 for (i = 0; i < 10; i++)
775 /* extra padding for stsd needed */
780 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
782 int tag = track->par->codec_tag;
784 if (!ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id))
787 if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
788 else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
789 else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
790 else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
791 else if (track->par->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
792 else if (track->par->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
793 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
794 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
795 else if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
800 static const AVCodecTag codec_ipod_tags[] = {
801 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
802 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
803 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
804 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
805 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
806 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
807 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
808 { AV_CODEC_ID_NONE, 0 },
811 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
813 int tag = track->par->codec_tag;
815 // keep original tag for subs, ipod supports both formats
816 if (!(track->par->codec_type == AVMEDIA_TYPE_SUBTITLE &&
817 (tag == MKTAG('t', 'x', '3', 'g') ||
818 tag == MKTAG('t', 'e', 'x', 't'))))
819 tag = ff_codec_get_tag(codec_ipod_tags, track->par->codec_id);
821 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
822 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
823 "Quicktime/Ipod might not play the file\n");
828 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
832 if (track->par->width == 720) /* SD */
833 if (track->par->height == 480) /* NTSC */
834 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
835 else tag = MKTAG('d','v','c',' ');
836 else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
837 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
838 else tag = MKTAG('d','v','p','p');
839 else if (track->par->height == 720) /* HD 720 line */
840 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
841 else tag = MKTAG('d','v','h','p');
842 else if (track->par->height == 1080) /* HD 1080 line */
843 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
844 else tag = MKTAG('d','v','h','6');
846 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
853 static const struct {
854 enum AVPixelFormat pix_fmt;
857 } mov_pix_fmt_tags[] = {
858 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
859 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
860 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
861 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
862 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
863 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
864 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
865 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
866 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
867 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
868 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
869 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
870 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
871 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
874 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
876 int tag = track->par->codec_tag;
879 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
880 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
881 tag = mov_pix_fmt_tags[i].tag;
882 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
890 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
892 int tag = track->par->codec_tag;
894 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
895 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
896 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
897 track->par->codec_id == AV_CODEC_ID_H263 ||
898 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
899 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
900 tag = mov_get_dv_codec_tag(s, track);
901 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
902 tag = mov_get_rawvideo_codec_tag(s, track);
903 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
904 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
905 if (!tag) { // if no mac fcc found, try with Microsoft tags
906 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
908 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
909 "the file may be unplayable!\n");
911 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
912 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
913 if (!tag) { // if no mac fcc found, try with Microsoft tags
914 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
916 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
917 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
918 "the file may be unplayable!\n");
921 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
922 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
928 static const AVCodecTag codec_3gp_tags[] = {
929 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
930 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
931 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
932 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
933 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
934 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
935 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
936 { AV_CODEC_ID_NONE, 0 },
939 static const AVCodecTag codec_f4v_tags[] = {
940 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
941 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
942 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
943 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
944 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
945 { AV_CODEC_ID_NONE, 0 },
948 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
952 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
953 tag = mp4_get_codec_tag(s, track);
954 else if (track->mode == MODE_ISM) {
955 tag = mp4_get_codec_tag(s, track);
956 if (!tag && track->par->codec_id == AV_CODEC_ID_WMAPRO)
957 tag = MKTAG('w', 'm', 'a', ' ');
958 } else if (track->mode == MODE_IPOD)
959 tag = ipod_get_codec_tag(s, track);
960 else if (track->mode & MODE_3GP)
961 tag = ff_codec_get_tag(codec_3gp_tags, track->par->codec_id);
962 else if (track->mode == MODE_F4V)
963 tag = ff_codec_get_tag(codec_f4v_tags, track->par->codec_id);
965 tag = mov_get_codec_tag(s, track);
971 * Needed to make file play in iPods running newest firmware
972 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
974 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
977 ffio_wfourcc(pb, "uuid");
978 avio_wb32(pb, 0x6b6840f2);
979 avio_wb32(pb, 0x5f244fc5);
980 avio_wb32(pb, 0xba39a51b);
981 avio_wb32(pb, 0xcf0323f3);
986 static const uint16_t fiel_data[] = {
987 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
990 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
992 unsigned mov_field_order = 0;
993 if (track->par->field_order < FF_ARRAY_ELEMS(fiel_data))
994 mov_field_order = fiel_data[track->par->field_order];
998 ffio_wfourcc(pb, "fiel");
999 avio_wb16(pb, mov_field_order);
1003 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1005 int64_t pos = avio_tell(pb);
1006 avio_wb32(pb, 0); /* size */
1007 avio_wl32(pb, track->tag); // store it byteswapped
1008 avio_wb32(pb, 0); /* Reserved */
1009 avio_wb16(pb, 0); /* Reserved */
1010 avio_wb16(pb, 1); /* Data-reference index */
1012 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1013 mov_write_esds_tag(pb, track);
1014 else if (track->par->extradata_size)
1015 avio_write(pb, track->par->extradata, track->par->extradata_size);
1017 return update_size(pb, pos);
1020 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1023 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1024 track->par->sample_aspect_ratio.den, INT_MAX);
1027 ffio_wfourcc(pb, "pasp");
1028 avio_wb32(pb, sar.num);
1029 avio_wb32(pb, sar.den);
1033 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1035 AVDictionaryEntry *encoder;
1036 int64_t pos = avio_tell(pb);
1037 char compressor_name[32] = { 0 };
1039 avio_wb32(pb, 0); /* size */
1040 avio_wl32(pb, track->tag); // store it byteswapped
1041 avio_wb32(pb, 0); /* Reserved */
1042 avio_wb16(pb, 0); /* Reserved */
1043 avio_wb16(pb, 1); /* Data-reference index */
1045 avio_wb16(pb, 0); /* Codec stream version */
1046 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1047 if (track->mode == MODE_MOV) {
1048 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1049 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
1050 avio_wb32(pb, 0); /* Temporal Quality */
1051 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1053 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1054 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1057 avio_wb32(pb, 0); /* Reserved */
1058 avio_wb32(pb, 0); /* Reserved */
1059 avio_wb32(pb, 0); /* Reserved */
1061 avio_wb16(pb, track->par->width); /* Video width */
1062 avio_wb16(pb, track->height); /* Video height */
1063 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1064 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1065 avio_wb32(pb, 0); /* Data size (= 0) */
1066 avio_wb16(pb, 1); /* Frame count (= 1) */
1068 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1069 if (track->mode == MODE_MOV &&
1070 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1071 av_strlcpy(compressor_name, encoder->value, 32);
1072 avio_w8(pb, strlen(compressor_name));
1073 avio_write(pb, compressor_name, 31);
1075 if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1076 avio_wb16(pb, track->par->bits_per_coded_sample);
1078 avio_wb16(pb, 0x18); /* Reserved */
1079 avio_wb16(pb, 0xffff); /* Reserved */
1080 if (track->tag == MKTAG('m','p','4','v'))
1081 mov_write_esds_tag(pb, track);
1082 else if (track->par->codec_id == AV_CODEC_ID_H263)
1083 mov_write_d263_tag(pb);
1084 else if (track->par->codec_id == AV_CODEC_ID_SVQ3)
1085 mov_write_svq3_tag(pb);
1086 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1087 mov_write_avid_tag(pb, track);
1088 else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1089 mov_write_hvcc_tag(pb, track);
1090 else if (track->par->codec_id == AV_CODEC_ID_H264) {
1091 mov_write_avcc_tag(pb, track);
1092 if (track->mode == MODE_IPOD)
1093 mov_write_uuid_tag_ipod(pb);
1094 } else if (track->par->field_order != AV_FIELD_UNKNOWN)
1095 mov_write_fiel_tag(pb, track);
1096 else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1097 mov_write_dvc1_tag(pb, track);
1098 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1099 track->par->codec_id == AV_CODEC_ID_VP6A) {
1100 /* Don't write any potential extradata here - the cropping
1101 * is signalled via the normal width/height fields. */
1102 } else if (track->vos_len > 0)
1103 mov_write_glbl_tag(pb, track);
1105 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num &&
1106 track->par->sample_aspect_ratio.den != track->par->sample_aspect_ratio.num) {
1107 mov_write_pasp_tag(pb, track);
1110 return update_size(pb, pos);
1113 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1115 int64_t pos = avio_tell(pb);
1116 avio_wb32(pb, 0); /* size */
1117 ffio_wfourcc(pb, "rtp ");
1118 avio_wb32(pb, 0); /* Reserved */
1119 avio_wb16(pb, 0); /* Reserved */
1120 avio_wb16(pb, 1); /* Data-reference index */
1122 avio_wb16(pb, 1); /* Hint track version */
1123 avio_wb16(pb, 1); /* Highest compatible version */
1124 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1126 avio_wb32(pb, 12); /* size */
1127 ffio_wfourcc(pb, "tims");
1128 avio_wb32(pb, track->timescale);
1130 return update_size(pb, pos);
1133 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1135 int64_t pos = avio_tell(pb);
1137 avio_wb32(pb, 0); /* size */
1138 ffio_wfourcc(pb, "tmcd"); /* Data format */
1139 avio_wb32(pb, 0); /* Reserved */
1140 avio_wb32(pb, 1); /* Data reference index */
1141 if (track->par->extradata_size)
1142 avio_write(pb, track->par->extradata, track->par->extradata_size);
1143 return update_size(pb, pos);
1146 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1148 int64_t pos = avio_tell(pb);
1149 avio_wb32(pb, 0); /* size */
1150 ffio_wfourcc(pb, "stsd");
1151 avio_wb32(pb, 0); /* version & flags */
1152 avio_wb32(pb, 1); /* entry count */
1153 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1154 mov_write_video_tag(pb, track);
1155 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1156 mov_write_audio_tag(s, pb, track);
1157 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1158 mov_write_subtitle_tag(pb, track);
1159 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1160 mov_write_rtp_tag(pb, track);
1161 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1162 mov_write_tmcd_tag(pb, track);
1163 return update_size(pb, pos);
1166 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1168 MOVStts *ctts_entries;
1169 uint32_t entries = 0;
1173 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1175 return AVERROR(ENOMEM);
1176 ctts_entries[0].count = 1;
1177 ctts_entries[0].duration = track->cluster[0].cts;
1178 for (i = 1; i < track->entry; i++) {
1179 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1180 ctts_entries[entries].count++; /* compress */
1183 ctts_entries[entries].duration = track->cluster[i].cts;
1184 ctts_entries[entries].count = 1;
1187 entries++; /* last one */
1188 atom_size = 16 + (entries * 8);
1189 avio_wb32(pb, atom_size); /* size */
1190 ffio_wfourcc(pb, "ctts");
1191 avio_wb32(pb, 0); /* version & flags */
1192 avio_wb32(pb, entries); /* entry count */
1193 for (i = 0; i < entries; i++) {
1194 avio_wb32(pb, ctts_entries[i].count);
1195 avio_wb32(pb, ctts_entries[i].duration);
1197 av_free(ctts_entries);
1201 /* Time to sample atom */
1202 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1204 MOVStts *stts_entries = NULL;
1205 uint32_t entries = -1;
1209 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1210 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1212 return AVERROR(ENOMEM);
1213 stts_entries[0].count = track->sample_count;
1214 stts_entries[0].duration = 1;
1218 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1220 return AVERROR(ENOMEM);
1222 for (i = 0; i < track->entry; i++) {
1223 int duration = get_cluster_duration(track, i);
1224 if (i && duration == stts_entries[entries].duration) {
1225 stts_entries[entries].count++; /* compress */
1228 stts_entries[entries].duration = duration;
1229 stts_entries[entries].count = 1;
1232 entries++; /* last one */
1234 atom_size = 16 + (entries * 8);
1235 avio_wb32(pb, atom_size); /* size */
1236 ffio_wfourcc(pb, "stts");
1237 avio_wb32(pb, 0); /* version & flags */
1238 avio_wb32(pb, entries); /* entry count */
1239 for (i = 0; i < entries; i++) {
1240 avio_wb32(pb, stts_entries[i].count);
1241 avio_wb32(pb, stts_entries[i].duration);
1243 av_free(stts_entries);
1247 static int mov_write_dref_tag(AVIOContext *pb)
1249 avio_wb32(pb, 28); /* size */
1250 ffio_wfourcc(pb, "dref");
1251 avio_wb32(pb, 0); /* version & flags */
1252 avio_wb32(pb, 1); /* entry count */
1254 avio_wb32(pb, 0xc); /* size */
1255 ffio_wfourcc(pb, "url ");
1256 avio_wb32(pb, 1); /* version & flags */
1261 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1263 int64_t pos = avio_tell(pb);
1264 avio_wb32(pb, 0); /* size */
1265 ffio_wfourcc(pb, "stbl");
1266 mov_write_stsd_tag(s, pb, track);
1267 mov_write_stts_tag(pb, track);
1268 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1269 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
1270 track->has_keyframes && track->has_keyframes < track->entry)
1271 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1272 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1273 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1274 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
1275 track->flags & MOV_TRACK_CTTS && track->entry)
1276 mov_write_ctts_tag(pb, track);
1277 mov_write_stsc_tag(pb, track);
1278 mov_write_stsz_tag(pb, track);
1279 mov_write_stco_tag(pb, track);
1280 return update_size(pb, pos);
1283 static int mov_write_dinf_tag(AVIOContext *pb)
1285 int64_t pos = avio_tell(pb);
1286 avio_wb32(pb, 0); /* size */
1287 ffio_wfourcc(pb, "dinf");
1288 mov_write_dref_tag(pb);
1289 return update_size(pb, pos);
1292 static int mov_write_nmhd_tag(AVIOContext *pb)
1295 ffio_wfourcc(pb, "nmhd");
1300 static int mov_write_gmhd_tag(AVIOContext *pb)
1302 avio_wb32(pb, 0x20); /* size */
1303 ffio_wfourcc(pb, "gmhd");
1304 avio_wb32(pb, 0x18); /* gmin size */
1305 ffio_wfourcc(pb, "gmin");/* generic media info */
1306 avio_wb32(pb, 0); /* version & flags */
1307 avio_wb16(pb, 0x40); /* graphics mode = */
1308 avio_wb16(pb, 0x8000); /* opColor (r?) */
1309 avio_wb16(pb, 0x8000); /* opColor (g?) */
1310 avio_wb16(pb, 0x8000); /* opColor (b?) */
1311 avio_wb16(pb, 0); /* balance */
1312 avio_wb16(pb, 0); /* reserved */
1316 static int mov_write_smhd_tag(AVIOContext *pb)
1318 avio_wb32(pb, 16); /* size */
1319 ffio_wfourcc(pb, "smhd");
1320 avio_wb32(pb, 0); /* version & flags */
1321 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1322 avio_wb16(pb, 0); /* reserved */
1326 static int mov_write_vmhd_tag(AVIOContext *pb)
1328 avio_wb32(pb, 0x14); /* size (always 0x14) */
1329 ffio_wfourcc(pb, "vmhd");
1330 avio_wb32(pb, 0x01); /* version & flags */
1331 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1335 static int is_clcp_track(MOVTrack *track)
1337 return track->tag == MKTAG('c','7','0','8') ||
1338 track->tag == MKTAG('c','6','0','8');
1341 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1343 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1344 int64_t pos = avio_tell(pb);
1348 descr = "DataHandler";
1351 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1352 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1354 descr = "VideoHandler";
1355 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1357 descr = "SoundHandler";
1358 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1359 if (track->tag == MKTAG('t','x','3','g')) {
1361 } else if (track->tag == MKTAG('m','p','4','s')) {
1363 } else if (is_clcp_track(track)) {
1368 descr = "SubtitleHandler";
1369 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
1371 descr = "HintHandler";
1372 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
1374 descr = "TimeCodeHandler";
1377 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1378 track->par->codec_tag);
1380 av_log(s, AV_LOG_WARNING,
1381 "Unknown hldr_type for %s / 0x%04"PRIX32", writing dummy values\n",
1382 tag_buf, track->par->codec_tag);
1385 // hdlr.name is used by some players to identify the content title
1386 // of the track. So if an alternate handler description is
1387 // specified, use it.
1388 AVDictionaryEntry *t;
1389 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1390 if (t && utf8len(t->value))
1395 avio_wb32(pb, 0); /* size */
1396 ffio_wfourcc(pb, "hdlr");
1397 avio_wb32(pb, 0); /* Version & flags */
1398 avio_write(pb, hdlr, 4); /* handler */
1399 ffio_wfourcc(pb, hdlr_type); /* handler type */
1400 avio_wb32(pb, 0); /* reserved */
1401 avio_wb32(pb, 0); /* reserved */
1402 avio_wb32(pb, 0); /* reserved */
1403 if (!track || track->mode == MODE_MOV)
1404 avio_w8(pb, strlen(descr)); /* pascal string */
1405 avio_write(pb, descr, strlen(descr)); /* handler description */
1406 if (track && track->mode != MODE_MOV)
1407 avio_w8(pb, 0); /* c string */
1408 return update_size(pb, pos);
1411 static int mov_write_hmhd_tag(AVIOContext *pb)
1413 /* This atom must be present, but leaving the values at zero
1414 * seems harmless. */
1415 avio_wb32(pb, 28); /* size */
1416 ffio_wfourcc(pb, "hmhd");
1417 avio_wb32(pb, 0); /* version, flags */
1418 avio_wb16(pb, 0); /* maxPDUsize */
1419 avio_wb16(pb, 0); /* avgPDUsize */
1420 avio_wb32(pb, 0); /* maxbitrate */
1421 avio_wb32(pb, 0); /* avgbitrate */
1422 avio_wb32(pb, 0); /* reserved */
1426 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1428 int64_t pos = avio_tell(pb);
1429 avio_wb32(pb, 0); /* size */
1430 ffio_wfourcc(pb, "minf");
1431 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1432 mov_write_vmhd_tag(pb);
1433 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1434 mov_write_smhd_tag(pb);
1435 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1436 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1437 mov_write_gmhd_tag(pb);
1439 mov_write_nmhd_tag(pb);
1441 } else if (track->tag == MKTAG('r','t','p',' ')) {
1442 mov_write_hmhd_tag(pb);
1443 } else if (track->tag == MKTAG('t','m','c','d')) {
1444 mov_write_gmhd_tag(pb);
1446 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1447 mov_write_hdlr_tag(s, pb, NULL);
1448 mov_write_dinf_tag(pb);
1449 mov_write_stbl_tag(s, pb, track);
1450 return update_size(pb, pos);
1453 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1456 int version = track->track_duration < INT32_MAX ? 0 : 1;
1458 if (track->mode == MODE_ISM)
1461 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1462 ffio_wfourcc(pb, "mdhd");
1463 avio_w8(pb, version);
1464 avio_wb24(pb, 0); /* flags */
1466 avio_wb64(pb, track->time);
1467 avio_wb64(pb, track->time);
1469 avio_wb32(pb, track->time); /* creation time */
1470 avio_wb32(pb, track->time); /* modification time */
1472 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1473 if (!track->entry && mov->mode == MODE_ISM)
1474 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1475 else if (!track->entry)
1476 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1478 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1479 avio_wb16(pb, track->language); /* language */
1480 avio_wb16(pb, 0); /* reserved (quality) */
1482 if (version != 0 && track->mode == MODE_MOV) {
1483 av_log(NULL, AV_LOG_ERROR,
1484 "FATAL error, file duration too long for timebase, this file will not be\n"
1485 "playable with quicktime. Choose a different timebase or a different\n"
1486 "container format\n");
1492 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
1493 MOVMuxContext *mov, MOVTrack *track)
1495 int64_t pos = avio_tell(pb);
1496 avio_wb32(pb, 0); /* size */
1497 ffio_wfourcc(pb, "mdia");
1498 mov_write_mdhd_tag(pb, mov, track);
1499 mov_write_hdlr_tag(s, pb, track);
1500 mov_write_minf_tag(s, pb, track);
1501 return update_size(pb, pos);
1504 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1505 MOVTrack *track, AVStream *st)
1507 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1508 track->timescale, AV_ROUND_UP);
1509 int version = duration < INT32_MAX ? 0 : 1;
1510 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1513 uint32_t *display_matrix = NULL;
1514 int display_matrix_size, i;
1517 if (mov->per_stream_grouping)
1520 group = st->codecpar->codec_type;
1522 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1523 &display_matrix_size);
1524 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1525 display_matrix = NULL;
1528 if (track->flags & MOV_TRACK_ENABLED)
1529 flags |= MOV_TKHD_FLAG_ENABLED;
1531 if (track->mode == MODE_ISM)
1534 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1535 ffio_wfourcc(pb, "tkhd");
1536 avio_w8(pb, version);
1537 avio_wb24(pb, flags);
1539 avio_wb64(pb, track->time);
1540 avio_wb64(pb, track->time);
1542 avio_wb32(pb, track->time); /* creation time */
1543 avio_wb32(pb, track->time); /* modification time */
1545 avio_wb32(pb, track->track_id); /* track-id */
1546 avio_wb32(pb, 0); /* reserved */
1547 if (!track->entry && mov->mode == MODE_ISM)
1548 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1549 else if (!track->entry)
1550 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1552 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1554 avio_wb32(pb, 0); /* reserved */
1555 avio_wb32(pb, 0); /* reserved */
1556 avio_wb16(pb, 0); /* layer */
1557 avio_wb16(pb, group); /* alternate group) */
1558 /* Volume, only for audio */
1559 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1560 avio_wb16(pb, 0x0100);
1563 avio_wb16(pb, 0); /* reserved */
1565 /* Matrix structure */
1566 if (display_matrix) {
1567 for (i = 0; i < 9; i++)
1568 avio_wb32(pb, display_matrix[i]);
1570 avio_wb32(pb, 0x00010000); /* reserved */
1571 avio_wb32(pb, 0x0); /* reserved */
1572 avio_wb32(pb, 0x0); /* reserved */
1573 avio_wb32(pb, 0x0); /* reserved */
1574 avio_wb32(pb, 0x00010000); /* reserved */
1575 avio_wb32(pb, 0x0); /* reserved */
1576 avio_wb32(pb, 0x0); /* reserved */
1577 avio_wb32(pb, 0x0); /* reserved */
1578 avio_wb32(pb, 0x40000000); /* reserved */
1581 /* Track width and height, for visual only */
1582 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1583 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1584 if (track->mode == MODE_MOV) {
1585 avio_wb32(pb, track->par->width << 16);
1586 avio_wb32(pb, track->height << 16);
1588 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1589 if (!sample_aspect_ratio || track->height != track->par->height)
1590 sample_aspect_ratio = 1;
1591 avio_wb32(pb, sample_aspect_ratio * track->par->width * 0x10000);
1592 avio_wb32(pb, track->height * 0x10000);
1601 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1603 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
1604 track->par->sample_aspect_ratio.den);
1606 int64_t pos = avio_tell(pb);
1608 avio_wb32(pb, 0); /* size */
1609 ffio_wfourcc(pb, "tapt");
1612 ffio_wfourcc(pb, "clef");
1614 avio_wb32(pb, width << 16);
1615 avio_wb32(pb, track->par->height << 16);
1618 ffio_wfourcc(pb, "prof");
1620 avio_wb32(pb, width << 16);
1621 avio_wb32(pb, track->par->height << 16);
1624 ffio_wfourcc(pb, "enof");
1626 avio_wb32(pb, track->par->width << 16);
1627 avio_wb32(pb, track->par->height << 16);
1629 return update_size(pb, pos);
1632 // This box seems important for the psp playback ... without it the movie seems to hang
1633 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1636 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1637 track->timescale, AV_ROUND_UP);
1638 int version = duration < INT32_MAX ? 0 : 1;
1639 int entry_size, entry_count, size;
1640 int64_t delay, start_ct = track->start_cts;
1641 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1642 track->timescale, AV_ROUND_DOWN);
1643 version |= delay < INT32_MAX ? 0 : 1;
1645 entry_size = (version == 1) ? 20 : 12;
1646 entry_count = 1 + (delay > 0);
1647 size = 24 + entry_count * entry_size;
1649 /* write the atom data */
1650 avio_wb32(pb, size);
1651 ffio_wfourcc(pb, "edts");
1652 avio_wb32(pb, size - 8);
1653 ffio_wfourcc(pb, "elst");
1654 avio_w8(pb, version);
1655 avio_wb24(pb, 0); /* flags */
1657 avio_wb32(pb, entry_count);
1658 if (delay > 0) { /* add an empty edit to delay presentation */
1659 /* In the positive delay case, the delay includes the cts
1660 * offset, and the second edit list entry below trims out
1661 * the same amount from the actual content. This makes sure
1662 * that the offset last sample is included in the edit
1663 * list duration as well. */
1665 avio_wb64(pb, delay);
1668 avio_wb32(pb, delay);
1671 avio_wb32(pb, 0x00010000);
1673 /* Avoid accidentally ending up with start_ct = -1 which has got a
1674 * special meaning. Normally start_ct should end up positive or zero
1675 * here, but use FFMIN in case dts is a a small positive integer
1676 * rounded to 0 when represented in MOV_TIMESCALE units. */
1677 start_ct = -FFMIN(track->start_dts, 0);
1678 /* Note, this delay is calculated from the pts of the first sample,
1679 * ensuring that we don't reduce the duration for cases with
1684 /* For fragmented files, we don't know the full length yet. Setting
1685 * duration to 0 allows us to only specify the offset, including
1686 * the rest of the content (from all future fragments) without specifying
1687 * an explicit duration. */
1688 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1693 avio_wb64(pb, duration);
1694 avio_wb64(pb, start_ct);
1696 avio_wb32(pb, duration);
1697 avio_wb32(pb, start_ct);
1699 avio_wb32(pb, 0x00010000);
1703 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1705 avio_wb32(pb, 20); // size
1706 ffio_wfourcc(pb, "tref");
1707 avio_wb32(pb, 12); // size (subatom)
1708 avio_wl32(pb, track->tref_tag);
1709 avio_wb32(pb, track->tref_id);
1713 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1714 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1716 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1717 ffio_wfourcc(pb, "uuid");
1718 ffio_wfourcc(pb, "USMT");
1719 avio_wb32(pb, 0x21d24fce);
1720 avio_wb32(pb, 0xbb88695c);
1721 avio_wb32(pb, 0xfac9c740);
1722 avio_wb32(pb, 0x1c); // another size here!
1723 ffio_wfourcc(pb, "MTDT");
1724 avio_wb32(pb, 0x00010012);
1725 avio_wb32(pb, 0x0a);
1726 avio_wb32(pb, 0x55c40000);
1732 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1734 AVFormatContext *ctx = track->rtp_ctx;
1735 char buf[1000] = "";
1738 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1739 NULL, NULL, 0, 0, ctx);
1740 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1743 avio_wb32(pb, len + 24);
1744 ffio_wfourcc(pb, "udta");
1745 avio_wb32(pb, len + 16);
1746 ffio_wfourcc(pb, "hnti");
1747 avio_wb32(pb, len + 8);
1748 ffio_wfourcc(pb, "sdp ");
1749 avio_write(pb, buf, len);
1753 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1754 const char *tag, const char *str)
1756 int64_t pos = avio_tell(pb);
1757 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1758 if (!t || !utf8len(t->value))
1761 avio_wb32(pb, 0); /* size */
1762 ffio_wfourcc(pb, tag); /* type */
1763 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1764 return update_size(pb, pos);
1767 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1770 AVIOContext *pb_buf;
1777 ret = avio_open_dyn_buf(&pb_buf);
1781 if (mov->mode & MODE_MP4)
1782 mov_write_track_metadata(pb_buf, st, "name", "title");
1784 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1785 avio_wb32(pb, size + 8);
1786 ffio_wfourcc(pb, "udta");
1787 avio_write(pb, buf, size);
1794 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1795 MOVTrack *track, AVStream *st)
1797 int64_t pos = avio_tell(pb);
1798 int entry_backup = track->entry;
1799 /* If we want to have an empty moov, but some samples already have been
1800 * buffered (delay_moov), pretend that no samples have been written yet. */
1801 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1804 avio_wb32(pb, 0); /* size */
1805 ffio_wfourcc(pb, "trak");
1806 mov_write_tkhd_tag(pb, mov, track, st);
1807 if (track->start_dts != AV_NOPTS_VALUE &&
1808 (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1809 track->start_dts || is_clcp_track(track))) {
1810 if (mov->use_editlist)
1811 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1812 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1813 av_log(mov->fc, AV_LOG_WARNING,
1814 "Not writing any edit list even though one would have been required\n");
1816 if (track->tref_tag)
1817 mov_write_tref_tag(pb, track);
1818 mov_write_mdia_tag(mov->fc, pb, mov, track);
1819 if (track->mode == MODE_PSP)
1820 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1821 if (track->tag == MKTAG('r','t','p',' '))
1822 mov_write_udta_sdp(pb, track);
1823 if (track->mode == MODE_MOV) {
1824 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1825 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1826 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1827 mov_write_tapt_tag(pb, track);
1830 if (is_clcp_track(track)) {
1831 mov_write_tapt_tag(pb, track);
1834 mov_write_track_udta_tag(pb, mov, st);
1835 track->entry = entry_backup;
1836 return update_size(pb, pos);
1839 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1841 int i, has_audio = 0, has_video = 0;
1842 int64_t pos = avio_tell(pb);
1843 int audio_profile = mov->iods_audio_profile;
1844 int video_profile = mov->iods_video_profile;
1845 for (i = 0; i < mov->nb_streams; i++) {
1846 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1847 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
1848 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
1851 if (audio_profile < 0)
1852 audio_profile = 0xFF - has_audio;
1853 if (video_profile < 0)
1854 video_profile = 0xFF - has_video;
1855 avio_wb32(pb, 0x0); /* size */
1856 ffio_wfourcc(pb, "iods");
1857 avio_wb32(pb, 0); /* version & flags */
1858 put_descr(pb, 0x10, 7);
1859 avio_wb16(pb, 0x004f);
1862 avio_w8(pb, audio_profile);
1863 avio_w8(pb, video_profile);
1865 return update_size(pb, pos);
1868 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1870 avio_wb32(pb, 0x20); /* size */
1871 ffio_wfourcc(pb, "trex");
1872 avio_wb32(pb, 0); /* version & flags */
1873 avio_wb32(pb, track->track_id); /* track ID */
1874 avio_wb32(pb, 1); /* default sample description index */
1875 avio_wb32(pb, 0); /* default sample duration */
1876 avio_wb32(pb, 0); /* default sample size */
1877 avio_wb32(pb, 0); /* default sample flags */
1881 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1883 int64_t pos = avio_tell(pb);
1885 avio_wb32(pb, 0x0); /* size */
1886 ffio_wfourcc(pb, "mvex");
1887 for (i = 0; i < mov->nb_streams; i++)
1888 mov_write_trex_tag(pb, &mov->tracks[i]);
1889 return update_size(pb, pos);
1892 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1894 int max_track_id = 1, i;
1895 int64_t max_track_len_temp, max_track_len = 0;
1898 for (i = 0; i < mov->nb_streams; i++) {
1899 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1900 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1902 mov->tracks[i].timescale,
1904 if (max_track_len < max_track_len_temp)
1905 max_track_len = max_track_len_temp;
1906 if (max_track_id < mov->tracks[i].track_id)
1907 max_track_id = mov->tracks[i].track_id;
1910 /* If using delay_moov, make sure the output is the same as if no
1911 * samples had been written yet. */
1912 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1917 version = max_track_len < UINT32_MAX ? 0 : 1;
1918 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1919 ffio_wfourcc(pb, "mvhd");
1920 avio_w8(pb, version);
1921 avio_wb24(pb, 0); /* flags */
1923 avio_wb64(pb, mov->time);
1924 avio_wb64(pb, mov->time);
1926 avio_wb32(pb, mov->time); /* creation time */
1927 avio_wb32(pb, mov->time); /* modification time */
1929 avio_wb32(pb, MOV_TIMESCALE);
1930 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1932 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1933 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1934 avio_wb16(pb, 0); /* reserved */
1935 avio_wb32(pb, 0); /* reserved */
1936 avio_wb32(pb, 0); /* reserved */
1938 /* Matrix structure */
1939 avio_wb32(pb, 0x00010000); /* reserved */
1940 avio_wb32(pb, 0x0); /* reserved */
1941 avio_wb32(pb, 0x0); /* reserved */
1942 avio_wb32(pb, 0x0); /* reserved */
1943 avio_wb32(pb, 0x00010000); /* reserved */
1944 avio_wb32(pb, 0x0); /* reserved */
1945 avio_wb32(pb, 0x0); /* reserved */
1946 avio_wb32(pb, 0x0); /* reserved */
1947 avio_wb32(pb, 0x40000000); /* reserved */
1949 avio_wb32(pb, 0); /* reserved (preview time) */
1950 avio_wb32(pb, 0); /* reserved (preview duration) */
1951 avio_wb32(pb, 0); /* reserved (poster time) */
1952 avio_wb32(pb, 0); /* reserved (selection time) */
1953 avio_wb32(pb, 0); /* reserved (selection duration) */
1954 avio_wb32(pb, 0); /* reserved (current time) */
1955 avio_wb32(pb, max_track_id + 1); /* Next track id */
1959 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1962 avio_wb32(pb, 33); /* size */
1963 ffio_wfourcc(pb, "hdlr");
1966 ffio_wfourcc(pb, "mdir");
1967 ffio_wfourcc(pb, "appl");
1974 /* helper function to write a data tag with the specified string as data */
1975 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1978 int size = 16 + strlen(data);
1979 avio_wb32(pb, size); /* size */
1980 ffio_wfourcc(pb, "data");
1983 avio_write(pb, data, strlen(data));
1987 lang = ff_mov_iso639_to_lang("und", 1);
1988 avio_wb16(pb, strlen(data)); /* string length */
1989 avio_wb16(pb, lang);
1990 avio_write(pb, data, strlen(data));
1991 return strlen(data) + 4;
1995 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1996 const char *value, int lang, int long_style)
1999 if (value && value[0]) {
2000 int64_t pos = avio_tell(pb);
2001 avio_wb32(pb, 0); /* size */
2002 ffio_wfourcc(pb, name);
2003 mov_write_string_data_tag(pb, value, lang, long_style);
2004 size = update_size(pb, pos);
2009 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
2010 const char *tag, int *lang)
2013 AVDictionaryEntry *t, *t2 = NULL;
2018 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
2021 len = strlen(t->key);
2022 snprintf(tag2, sizeof(tag2), "%s-", tag);
2023 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
2024 len2 = strlen(t2->key);
2025 if (len2 == len + 4 && !strcmp(t->value, t2->value)
2026 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
2034 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
2035 const char *name, const char *tag,
2039 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
2042 return mov_write_string_tag(pb, name, t->value, lang, long_style);
2045 /* 3GPP TS 26.244 */
2046 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
2049 int64_t pos = avio_tell(pb);
2050 double latitude, longitude, altitude;
2051 int32_t latitude_fix, longitude_fix, altitude_fix;
2052 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
2053 const char *ptr, *place = "";
2055 const char *astronomical_body = "earth";
2060 longitude = strtod(ptr, &end);
2062 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2066 latitude = strtod(ptr, &end);
2068 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2072 altitude = strtod(ptr, &end);
2073 /* If no altitude was present, the default 0 should be fine */
2077 latitude_fix = (int32_t) ((1 << 16) * latitude);
2078 longitude_fix = (int32_t) ((1 << 16) * longitude);
2079 altitude_fix = (int32_t) ((1 << 16) * altitude);
2081 avio_wb32(pb, 0); /* size */
2082 ffio_wfourcc(pb, "loci"); /* type */
2083 avio_wb32(pb, 0); /* version + flags */
2084 avio_wb16(pb, lang);
2085 avio_write(pb, place, strlen(place) + 1);
2086 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
2087 avio_wb32(pb, latitude_fix);
2088 avio_wb32(pb, longitude_fix);
2089 avio_wb32(pb, altitude_fix);
2090 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
2091 avio_w8(pb, 0); /* additional notes, null terminated string */
2093 return update_size(pb, pos);
2096 /* iTunes track number */
2097 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2100 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2101 int size = 0, track = t ? atoi(t->value) : 0;
2103 avio_wb32(pb, 32); /* size */
2104 ffio_wfourcc(pb, "trkn");
2105 avio_wb32(pb, 24); /* size */
2106 ffio_wfourcc(pb, "data");
2107 avio_wb32(pb, 0); // 8 bytes empty
2109 avio_wb16(pb, 0); // empty
2110 avio_wb16(pb, track); // track number
2111 avio_wb16(pb, 0); // total track number
2112 avio_wb16(pb, 0); // empty
2118 /* iTunes meta data list */
2119 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2122 int64_t pos = avio_tell(pb);
2123 avio_wb32(pb, 0); /* size */
2124 ffio_wfourcc(pb, "ilst");
2125 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2126 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2127 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2128 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2129 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2130 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2131 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2132 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2133 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2135 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2136 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2137 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2138 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2139 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2140 mov_write_string_metadata(s, pb, "desc", "description",1);
2141 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2142 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2143 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2144 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2145 mov_write_trkn_tag(pb, mov, s);
2146 return update_size(pb, pos);
2149 /* iTunes meta data tag */
2150 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2154 int64_t pos = avio_tell(pb);
2155 avio_wb32(pb, 0); /* size */
2156 ffio_wfourcc(pb, "meta");
2158 mov_write_itunes_hdlr_tag(pb, mov, s);
2159 mov_write_ilst_tag(pb, mov, s);
2160 size = update_size(pb, pos);
2164 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2168 GET_UTF8(val, *b++, return -1;)
2171 avio_wb16(pb, 0x00);
2175 static uint16_t language_code(const char *str)
2177 return (((str[0] - 0x60) & 0x1F) << 10) +
2178 (((str[1] - 0x60) & 0x1F) << 5) +
2179 (( str[2] - 0x60) & 0x1F);
2182 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2183 const char *tag, const char *str)
2185 int64_t pos = avio_tell(pb);
2186 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2187 if (!t || !utf8len(t->value))
2189 avio_wb32(pb, 0); /* size */
2190 ffio_wfourcc(pb, tag); /* type */
2191 avio_wb32(pb, 0); /* version + flags */
2192 if (!strcmp(tag, "yrrc"))
2193 avio_wb16(pb, atoi(t->value));
2195 avio_wb16(pb, language_code("eng")); /* language */
2196 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2197 if (!strcmp(tag, "albm") &&
2198 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2199 avio_w8(pb, atoi(t->value));
2201 return update_size(pb, pos);
2204 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2206 int64_t pos = avio_tell(pb);
2207 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2209 avio_wb32(pb, 0); // size
2210 ffio_wfourcc(pb, "chpl");
2211 avio_wb32(pb, 0x01000000); // version + flags
2212 avio_wb32(pb, 0); // unknown
2213 avio_w8(pb, nb_chapters);
2215 for (i = 0; i < nb_chapters; i++) {
2216 AVChapter *c = s->chapters[i];
2217 AVDictionaryEntry *t;
2218 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2220 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2221 int len = FFMIN(strlen(t->value), 255);
2223 avio_write(pb, t->value, len);
2227 return update_size(pb, pos);
2230 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2233 AVIOContext *pb_buf;
2237 ret = avio_open_dyn_buf(&pb_buf);
2241 if (mov->mode & MODE_3GP) {
2242 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2243 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2244 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2245 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2246 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2247 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2248 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2249 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2250 mov_write_loci_tag(s, pb_buf);
2251 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2252 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2253 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2254 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2255 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2256 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2257 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2258 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2259 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2260 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2261 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2262 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2263 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2264 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
2266 /* iTunes meta data */
2267 mov_write_meta_tag(pb_buf, mov, s);
2268 mov_write_loci_tag(s, pb_buf);
2271 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2272 mov_write_chpl_tag(pb_buf, s);
2274 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2275 avio_wb32(pb, size + 8);
2276 ffio_wfourcc(pb, "udta");
2277 avio_write(pb, buf, size);
2284 static void mov_write_psp_udta_tag(AVIOContext *pb,
2285 const char *str, const char *lang, int type)
2287 int len = utf8len(str) + 1;
2290 avio_wb16(pb, len * 2 + 10); /* size */
2291 avio_wb32(pb, type); /* type */
2292 avio_wb16(pb, language_code(lang)); /* language */
2293 avio_wb16(pb, 0x01); /* ? */
2294 ascii_to_wc(pb, str);
2297 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2299 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2303 pos = avio_tell(pb);
2304 avio_wb32(pb, 0); /* size placeholder*/
2305 ffio_wfourcc(pb, "uuid");
2306 ffio_wfourcc(pb, "USMT");
2307 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2308 avio_wb32(pb, 0xbb88695c);
2309 avio_wb32(pb, 0xfac9c740);
2311 pos2 = avio_tell(pb);
2312 avio_wb32(pb, 0); /* size placeholder*/
2313 ffio_wfourcc(pb, "MTDT");
2317 avio_wb16(pb, 0x0C); /* size */
2318 avio_wb32(pb, 0x0B); /* type */
2319 avio_wb16(pb, language_code("und")); /* language */
2320 avio_wb16(pb, 0x0); /* ? */
2321 avio_wb16(pb, 0x021C); /* data */
2323 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2324 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2325 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2327 update_size(pb, pos2);
2328 return update_size(pb, pos);
2334 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2338 int64_t pos = avio_tell(pb);
2339 avio_wb32(pb, 0); /* size placeholder*/
2340 ffio_wfourcc(pb, "moov");
2342 for (i = 0; i < mov->nb_streams; i++) {
2343 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2346 mov->tracks[i].time = mov->time;
2347 mov->tracks[i].track_id = i + 1;
2350 if (mov->chapter_track)
2351 for (i = 0; i < s->nb_streams; i++) {
2352 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2353 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2355 for (i = 0; i < mov->nb_streams; i++) {
2356 MOVTrack *track = &mov->tracks[i];
2357 if (track->tag == MKTAG('r','t','p',' ')) {
2358 track->tref_tag = MKTAG('h','i','n','t');
2359 track->tref_id = mov->tracks[track->src_track].track_id;
2360 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2361 int * fallback, size;
2362 fallback = (int*)av_stream_get_side_data(track->st,
2363 AV_PKT_DATA_FALLBACK_TRACK,
2365 if (fallback != NULL && size == sizeof(int)) {
2366 if (*fallback >= 0 && *fallback < mov->nb_streams) {
2367 track->tref_tag = MKTAG('f','a','l','l');
2368 track->tref_id = mov->tracks[*fallback].track_id;
2374 mov_write_mvhd_tag(pb, mov);
2375 if (mov->mode != MODE_MOV && !mov->iods_skip)
2376 mov_write_iods_tag(pb, mov);
2377 for (i = 0; i < mov->nb_streams; i++) {
2378 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2379 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2382 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2383 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2385 if (mov->mode == MODE_PSP)
2386 mov_write_uuidusmt_tag(pb, s);
2388 mov_write_udta_tag(pb, mov, s);
2390 return update_size(pb, pos);
2393 static void param_write_int(AVIOContext *pb, const char *name, int value)
2395 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2398 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2400 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2403 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2406 len = FFMIN(sizeof(buf) / 2 - 1, len);
2407 ff_data_to_hex(buf, value, len, 0);
2408 buf[2 * len] = '\0';
2409 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2412 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2414 int64_t pos = avio_tell(pb);
2416 static const uint8_t uuid[] = {
2417 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2418 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2422 ffio_wfourcc(pb, "uuid");
2423 avio_write(pb, uuid, sizeof(uuid));
2426 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2427 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2428 avio_printf(pb, "<head>\n");
2429 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2431 avio_printf(pb, "</head>\n");
2432 avio_printf(pb, "<body>\n");
2433 avio_printf(pb, "<switch>\n");
2434 for (i = 0; i < mov->nb_streams; i++) {
2435 MOVTrack *track = &mov->tracks[i];
2437 /* track->track_id is initialized in write_moov, and thus isn't known
2439 int track_id = i + 1;
2441 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2443 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2448 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2449 track->par->bit_rate);
2450 param_write_int(pb, "systemBitrate", track->par->bit_rate);
2451 param_write_int(pb, "trackID", track_id);
2452 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2453 if (track->par->codec_id == AV_CODEC_ID_H264) {
2455 int size = track->par->extradata_size;
2456 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
2458 param_write_hex(pb, "CodecPrivateData",
2459 ptr ? ptr : track->par->extradata,
2463 param_write_string(pb, "FourCC", "H264");
2464 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
2465 param_write_string(pb, "FourCC", "WVC1");
2466 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2467 track->par->extradata_size);
2469 param_write_int(pb, "MaxWidth", track->par->width);
2470 param_write_int(pb, "MaxHeight", track->par->height);
2471 param_write_int(pb, "DisplayWidth", track->par->width);
2472 param_write_int(pb, "DisplayHeight", track->par->height);
2474 if (track->par->codec_id == AV_CODEC_ID_AAC) {
2475 param_write_string(pb, "FourCC", "AACL");
2476 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
2477 param_write_string(pb, "FourCC", "WMAP");
2479 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2480 track->par->extradata_size);
2481 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2482 track->par->codec_id));
2483 param_write_int(pb, "Channels", track->par->channels);
2484 param_write_int(pb, "SamplingRate", track->par->sample_rate);
2485 param_write_int(pb, "BitsPerSample", 16);
2486 param_write_int(pb, "PacketSize", track->par->block_align ?
2487 track->par->block_align : 4);
2489 avio_printf(pb, "</%s>\n", type);
2491 avio_printf(pb, "</switch>\n");
2492 avio_printf(pb, "</body>\n");
2493 avio_printf(pb, "</smil>\n");
2495 return update_size(pb, pos);
2498 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2501 ffio_wfourcc(pb, "mfhd");
2503 avio_wb32(pb, mov->fragments);
2507 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2509 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2510 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2513 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2514 MOVTrack *track, int64_t moof_offset)
2516 int64_t pos = avio_tell(pb);
2517 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2518 MOV_TFHD_BASE_DATA_OFFSET;
2519 if (!track->entry) {
2520 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2522 flags |= MOV_TFHD_DEFAULT_FLAGS;
2524 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2525 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2526 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2527 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2528 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2531 /* Don't set a default sample size, the silverlight player refuses
2532 * to play files with that set. Don't set a default sample duration,
2533 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2534 * file format says it MUST NOT be set. */
2535 if (track->mode == MODE_ISM)
2536 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2537 MOV_TFHD_BASE_DATA_OFFSET);
2539 avio_wb32(pb, 0); /* size placeholder */
2540 ffio_wfourcc(pb, "tfhd");
2541 avio_w8(pb, 0); /* version */
2542 avio_wb24(pb, flags);
2544 avio_wb32(pb, track->track_id); /* track-id */
2545 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2546 avio_wb64(pb, moof_offset);
2547 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2548 track->default_duration = get_cluster_duration(track, 0);
2549 avio_wb32(pb, track->default_duration);
2551 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2552 track->default_size = track->entry ? track->cluster[0].size : 1;
2553 avio_wb32(pb, track->default_size);
2555 track->default_size = -1;
2557 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2558 /* Set the default flags based on the second sample, if available.
2559 * If the first sample is different, that can be signaled via a separate field. */
2560 if (track->entry > 1)
2561 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2563 track->default_sample_flags =
2564 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
2565 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2566 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2567 avio_wb32(pb, track->default_sample_flags);
2570 return update_size(pb, pos);
2573 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2574 MOVTrack *track, int moof_size,
2577 int64_t pos = avio_tell(pb);
2578 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2581 for (i = first; i < end; i++) {
2582 if (get_cluster_duration(track, i) != track->default_duration)
2583 flags |= MOV_TRUN_SAMPLE_DURATION;
2584 if (track->cluster[i].size != track->default_size)
2585 flags |= MOV_TRUN_SAMPLE_SIZE;
2586 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2587 flags |= MOV_TRUN_SAMPLE_FLAGS;
2589 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2590 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2591 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2592 if (track->flags & MOV_TRACK_CTTS)
2593 flags |= MOV_TRUN_SAMPLE_CTS;
2595 avio_wb32(pb, 0); /* size placeholder */
2596 ffio_wfourcc(pb, "trun");
2597 avio_w8(pb, 0); /* version */
2598 avio_wb24(pb, flags);
2600 avio_wb32(pb, end - first); /* sample count */
2601 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2602 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2604 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2606 avio_wb32(pb, moof_size + 8 + track->data_offset +
2607 track->cluster[first].pos); /* data offset */
2608 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2609 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2611 for (i = first; i < end; i++) {
2612 if (flags & MOV_TRUN_SAMPLE_DURATION)
2613 avio_wb32(pb, get_cluster_duration(track, i));
2614 if (flags & MOV_TRUN_SAMPLE_SIZE)
2615 avio_wb32(pb, track->cluster[i].size);
2616 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2617 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2618 if (flags & MOV_TRUN_SAMPLE_CTS)
2619 avio_wb32(pb, track->cluster[i].cts);
2622 mov->first_trun = 0;
2623 return update_size(pb, pos);
2626 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2628 int64_t pos = avio_tell(pb);
2629 static const uint8_t uuid[] = {
2630 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2631 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2634 avio_wb32(pb, 0); /* size placeholder */
2635 ffio_wfourcc(pb, "uuid");
2636 avio_write(pb, uuid, sizeof(uuid));
2639 avio_wb64(pb, track->start_dts + track->frag_start +
2640 track->cluster[0].cts);
2641 avio_wb64(pb, track->end_pts -
2642 (track->cluster[0].dts + track->cluster[0].cts));
2644 return update_size(pb, pos);
2647 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2648 MOVTrack *track, int entry)
2650 int n = track->nb_frag_info - 1 - entry, i;
2651 int size = 8 + 16 + 4 + 1 + 16*n;
2652 static const uint8_t uuid[] = {
2653 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2654 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2660 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2661 avio_wb32(pb, size);
2662 ffio_wfourcc(pb, "uuid");
2663 avio_write(pb, uuid, sizeof(uuid));
2667 for (i = 0; i < n; i++) {
2668 int index = entry + 1 + i;
2669 avio_wb64(pb, track->frag_info[index].time);
2670 avio_wb64(pb, track->frag_info[index].duration);
2672 if (n < mov->ism_lookahead) {
2673 int free_size = 16 * (mov->ism_lookahead - n);
2674 avio_wb32(pb, free_size);
2675 ffio_wfourcc(pb, "free");
2676 for (i = 0; i < free_size - 8; i++)
2683 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2686 int64_t pos = avio_tell(pb);
2688 for (i = 0; i < mov->ism_lookahead; i++) {
2689 /* Update the tfrf tag for the last ism_lookahead fragments,
2690 * nb_frag_info - 1 is the next fragment to be written. */
2691 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2693 avio_seek(pb, pos, SEEK_SET);
2697 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2701 for (i = 0; i < mov->nb_streams; i++) {
2702 MOVTrack *track = &mov->tracks[i];
2703 MOVFragmentInfo *info;
2704 if ((tracks >= 0 && i != tracks) || !track->entry)
2706 track->nb_frag_info++;
2707 if (track->nb_frag_info >= track->frag_info_capacity) {
2708 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2709 if (av_reallocp_array(&track->frag_info,
2711 sizeof(*track->frag_info)))
2712 return AVERROR(ENOMEM);
2713 track->frag_info_capacity = new_capacity;
2715 info = &track->frag_info[track->nb_frag_info - 1];
2716 info->offset = avio_tell(pb);
2718 // Try to recreate the original pts for the first packet
2719 // from the fields we have stored
2720 info->time = track->start_dts + track->frag_start +
2721 track->cluster[0].cts;
2722 info->duration = track->end_pts -
2723 (track->cluster[0].dts + track->cluster[0].cts);
2724 // If the pts is less than zero, we will have trimmed
2725 // away parts of the media track using an edit list,
2726 // and the corresponding start presentation time is zero.
2727 if (info->time < 0) {
2728 info->duration += info->time;
2731 info->tfrf_offset = 0;
2732 mov_write_tfrf_tags(pb, mov, track);
2737 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
2740 for (i = 0; i < mov->nb_streams; i++) {
2741 MOVTrack *track = &mov->tracks[i];
2742 if ((tracks >= 0 && i != tracks) || !track->entry)
2744 if (track->nb_frag_info > max) {
2745 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
2746 track->nb_frag_info = max;
2751 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2753 int64_t pos = avio_tell(pb);
2755 avio_wb32(pb, 0); /* size */
2756 ffio_wfourcc(pb, "tfdt");
2757 avio_w8(pb, 1); /* version */
2759 avio_wb64(pb, track->frag_start);
2760 return update_size(pb, pos);
2763 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2764 MOVTrack *track, int64_t moof_offset,
2767 int64_t pos = avio_tell(pb);
2769 avio_wb32(pb, 0); /* size placeholder */
2770 ffio_wfourcc(pb, "traf");
2772 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2773 if (mov->mode != MODE_ISM)
2774 mov_write_tfdt_tag(pb, track);
2775 for (i = 1; i < track->entry; i++) {
2776 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2777 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2781 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2782 if (mov->mode == MODE_ISM) {
2783 mov_write_tfxd_tag(pb, track);
2785 if (mov->ism_lookahead) {
2786 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2788 if (track->nb_frag_info > 0) {
2789 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2790 if (!info->tfrf_offset)
2791 info->tfrf_offset = avio_tell(pb);
2793 avio_wb32(pb, 8 + size);
2794 ffio_wfourcc(pb, "free");
2795 for (i = 0; i < size; i++)
2800 return update_size(pb, pos);
2803 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2804 int tracks, int moof_size)
2806 int64_t pos = avio_tell(pb);
2809 avio_wb32(pb, 0); /* size placeholder */
2810 ffio_wfourcc(pb, "moof");
2811 mov->first_trun = 1;
2813 mov_write_mfhd_tag(pb, mov);
2814 for (i = 0; i < mov->nb_streams; i++) {
2815 MOVTrack *track = &mov->tracks[i];
2816 if (tracks >= 0 && i != tracks)
2820 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2823 return update_size(pb, pos);
2826 static int mov_write_sidx_tag(AVIOContext *pb,
2827 MOVTrack *track, int ref_size, int total_sidx_size)
2829 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2830 int64_t presentation_time, duration, offset;
2831 int starts_with_SAP, i, entries;
2835 presentation_time = track->start_dts + track->frag_start +
2836 track->cluster[0].cts;
2837 duration = track->end_pts -
2838 (track->cluster[0].dts + track->cluster[0].cts);
2839 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2841 // pts<0 should be cut away using edts
2842 if (presentation_time < 0) {
2843 duration += presentation_time;
2844 presentation_time = 0;
2847 entries = track->nb_frag_info;
2850 presentation_time = track->frag_info[0].time;
2853 avio_wb32(pb, 0); /* size */
2854 ffio_wfourcc(pb, "sidx");
2855 avio_w8(pb, 1); /* version */
2857 avio_wb32(pb, track->track_id); /* reference_ID */
2858 avio_wb32(pb, track->timescale); /* timescale */
2859 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2860 offset_pos = avio_tell(pb);
2861 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2862 avio_wb16(pb, 0); /* reserved */
2864 avio_wb16(pb, entries); /* reference_count */
2865 for (i = 0; i < entries; i++) {
2866 if (!track->entry) {
2867 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2868 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2870 duration = track->frag_info[i].duration;
2871 ref_size = track->frag_info[i].size;
2872 starts_with_SAP = 1;
2874 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2875 avio_wb32(pb, duration); /* subsegment_duration */
2876 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2879 end_pos = avio_tell(pb);
2880 offset = pos + total_sidx_size - end_pos;
2881 avio_seek(pb, offset_pos, SEEK_SET);
2882 avio_wb64(pb, offset);
2883 avio_seek(pb, end_pos, SEEK_SET);
2884 return update_size(pb, pos);
2887 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2888 int tracks, int ref_size)
2891 AVIOContext *avio_buf;
2893 for (round = 0; round < 2; round++) {
2894 // First run one round to calculate the total size of all
2896 // This would be much simpler if we'd only write one sidx
2897 // atom, for the first track in the moof.
2899 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2904 for (i = 0; i < mov->nb_streams; i++) {
2905 MOVTrack *track = &mov->tracks[i];
2906 if (tracks >= 0 && i != tracks)
2908 // When writing a sidx for the full file, entry is 0, but
2909 // we want to include all tracks. ref_size is 0 in this case,
2910 // since we read it from frag_info instead.
2911 if (!track->entry && ref_size > 0)
2913 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2917 total_size = ffio_close_null_buf(avio_buf);
2922 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2925 AVIOContext *avio_buf;
2928 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2930 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2931 moof_size = ffio_close_null_buf(avio_buf);
2933 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
2934 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2936 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
2937 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
2938 mov->ism_lookahead) {
2939 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2941 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
2942 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
2943 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
2947 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2950 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2952 int64_t pos = avio_tell(pb);
2955 avio_wb32(pb, 0); /* size placeholder */
2956 ffio_wfourcc(pb, "tfra");
2957 avio_w8(pb, 1); /* version */
2960 avio_wb32(pb, track->track_id);
2961 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2962 avio_wb32(pb, track->nb_frag_info);
2963 for (i = 0; i < track->nb_frag_info; i++) {
2964 avio_wb64(pb, track->frag_info[i].time);
2965 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2966 avio_w8(pb, 1); /* traf number */
2967 avio_w8(pb, 1); /* trun number */
2968 avio_w8(pb, 1); /* sample number */
2971 return update_size(pb, pos);
2974 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2976 int64_t pos = avio_tell(pb);
2979 avio_wb32(pb, 0); /* size placeholder */
2980 ffio_wfourcc(pb, "mfra");
2981 /* An empty mfra atom is enough to indicate to the publishing point that
2982 * the stream has ended. */
2983 if (mov->flags & FF_MOV_FLAG_ISML)
2984 return update_size(pb, pos);
2986 for (i = 0; i < mov->nb_streams; i++) {
2987 MOVTrack *track = &mov->tracks[i];
2988 if (track->nb_frag_info)
2989 mov_write_tfra_tag(pb, track);
2993 ffio_wfourcc(pb, "mfro");
2994 avio_wb32(pb, 0); /* version + flags */
2995 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2997 return update_size(pb, pos);
3000 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
3002 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
3003 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
3005 mov->mdat_pos = avio_tell(pb);
3006 avio_wb32(pb, 0); /* size placeholder*/
3007 ffio_wfourcc(pb, "mdat");
3011 /* TODO: This needs to be more general */
3012 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
3014 MOVMuxContext *mov = s->priv_data;
3015 int64_t pos = avio_tell(pb);
3016 int has_h264 = 0, has_video = 0;
3020 for (i = 0; i < s->nb_streams; i++) {
3021 AVStream *st = s->streams[i];
3022 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
3024 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
3028 avio_wb32(pb, 0); /* size */
3029 ffio_wfourcc(pb, "ftyp");
3031 if (mov->major_brand && strlen(mov->major_brand) >= 4)
3032 ffio_wfourcc(pb, mov->major_brand);
3033 else if (mov->mode == MODE_3GP) {
3034 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
3035 minor = has_h264 ? 0x100 : 0x200;
3036 } else if (mov->mode & MODE_3G2) {
3037 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
3038 minor = has_h264 ? 0x20000 : 0x10000;
3039 } else if (mov->mode == MODE_PSP)
3040 ffio_wfourcc(pb, "MSNV");
3041 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3042 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
3043 else if (mov->mode == MODE_MP4)
3044 ffio_wfourcc(pb, "isom");
3045 else if (mov->mode == MODE_IPOD)
3046 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
3047 else if (mov->mode == MODE_ISM)
3048 ffio_wfourcc(pb, "isml");
3049 else if (mov->mode == MODE_F4V)
3050 ffio_wfourcc(pb, "f4v ");
3052 ffio_wfourcc(pb, "qt ");
3054 avio_wb32(pb, minor);
3056 if (mov->mode == MODE_MOV)
3057 ffio_wfourcc(pb, "qt ");
3058 else if (mov->mode == MODE_ISM) {
3059 ffio_wfourcc(pb, "piff");
3060 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3061 ffio_wfourcc(pb, "isom");
3062 ffio_wfourcc(pb, "iso2");
3064 ffio_wfourcc(pb, "avc1");
3067 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3068 // brand. This is compatible with users that don't understand tfdt.
3069 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3070 ffio_wfourcc(pb, "iso6");
3072 if (mov->mode == MODE_3GP)
3073 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3074 else if (mov->mode & MODE_3G2)
3075 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3076 else if (mov->mode == MODE_PSP)
3077 ffio_wfourcc(pb, "MSNV");
3078 else if (mov->mode == MODE_MP4)
3079 ffio_wfourcc(pb, "mp41");
3081 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3082 ffio_wfourcc(pb, "dash");
3084 return update_size(pb, pos);
3087 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3089 AVStream *video_st = s->streams[0];
3090 AVCodecParameters *video_par = s->streams[0]->codecpar;
3091 AVCodecParameters *audio_par = s->streams[1]->codecpar;
3092 int audio_rate = audio_par->sample_rate;
3093 // TODO: should be avg_frame_rate
3094 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3095 int audio_kbitrate = audio_par->bit_rate / 1000;
3096 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
3098 avio_wb32(pb, 0x94); /* size */
3099 ffio_wfourcc(pb, "uuid");
3100 ffio_wfourcc(pb, "PROF");
3102 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3103 avio_wb32(pb, 0xbb88695c);
3104 avio_wb32(pb, 0xfac9c740);
3106 avio_wb32(pb, 0x0); /* ? */
3107 avio_wb32(pb, 0x3); /* 3 sections ? */
3109 avio_wb32(pb, 0x14); /* size */
3110 ffio_wfourcc(pb, "FPRF");
3111 avio_wb32(pb, 0x0); /* ? */
3112 avio_wb32(pb, 0x0); /* ? */
3113 avio_wb32(pb, 0x0); /* ? */
3115 avio_wb32(pb, 0x2c); /* size */
3116 ffio_wfourcc(pb, "APRF"); /* audio */
3118 avio_wb32(pb, 0x2); /* TrackID */
3119 ffio_wfourcc(pb, "mp4a");
3120 avio_wb32(pb, 0x20f);
3122 avio_wb32(pb, audio_kbitrate);
3123 avio_wb32(pb, audio_kbitrate);
3124 avio_wb32(pb, audio_rate);
3125 avio_wb32(pb, audio_par->channels);
3127 avio_wb32(pb, 0x34); /* size */
3128 ffio_wfourcc(pb, "VPRF"); /* video */
3130 avio_wb32(pb, 0x1); /* TrackID */
3131 if (video_par->codec_id == AV_CODEC_ID_H264) {
3132 ffio_wfourcc(pb, "avc1");
3133 avio_wb16(pb, 0x014D);
3134 avio_wb16(pb, 0x0015);
3136 ffio_wfourcc(pb, "mp4v");
3137 avio_wb16(pb, 0x0000);
3138 avio_wb16(pb, 0x0103);
3141 avio_wb32(pb, video_kbitrate);
3142 avio_wb32(pb, video_kbitrate);
3143 avio_wb32(pb, frame_rate);
3144 avio_wb32(pb, frame_rate);
3145 avio_wb16(pb, video_par->width);
3146 avio_wb16(pb, video_par->height);
3147 avio_wb32(pb, 0x010001); /* ? */
3150 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3152 MOVMuxContext *mov = s->priv_data;
3153 mov_write_ftyp_tag(pb,s);
3154 if (mov->mode == MODE_PSP) {
3155 if (s->nb_streams != 2) {
3156 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3157 return AVERROR(EINVAL);
3159 mov_write_uuidprof_tag(pb, s);
3164 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3167 int i, closed_gop = 0;
3169 for (i = 0; i < pkt->size - 4; i++) {
3170 c = (c << 8) + pkt->data[i];
3171 if (c == 0x1b8) { // gop
3172 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3173 } else if (c == 0x100) { // pic
3174 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3175 if (!temp_ref || closed_gop) // I picture is not reordered
3176 *flags = MOV_SYNC_SAMPLE;
3178 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3185 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3187 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3188 int seq = 0, entry = 0;
3189 int key = pkt->flags & AV_PKT_FLAG_KEY;
3190 start = find_next_marker(pkt->data, end);
3191 for (next = start; next < end; start = next) {
3192 next = find_next_marker(start + 4, end);
3193 switch (AV_RB32(start)) {
3194 case VC1_CODE_SEQHDR:
3197 case VC1_CODE_ENTRYPOINT:
3200 case VC1_CODE_SLICE:
3201 trk->vc1_info.slices = 1;
3205 if (!trk->entry && trk->vc1_info.first_packet_seen)
3206 trk->vc1_info.first_frag_written = 1;
3207 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3208 /* First packet in first fragment */
3209 trk->vc1_info.first_packet_seq = seq;
3210 trk->vc1_info.first_packet_entry = entry;
3211 trk->vc1_info.first_packet_seen = 1;
3212 } else if ((seq && !trk->vc1_info.packet_seq) ||
3213 (entry && !trk->vc1_info.packet_entry)) {
3215 for (i = 0; i < trk->entry; i++)
3216 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3217 trk->has_keyframes = 0;
3219 trk->vc1_info.packet_seq = 1;
3221 trk->vc1_info.packet_entry = 1;
3222 if (!trk->vc1_info.first_frag_written) {
3223 /* First fragment */
3224 if ((!seq || trk->vc1_info.first_packet_seq) &&
3225 (!entry || trk->vc1_info.first_packet_entry)) {
3226 /* First packet had the same headers as this one, readd the
3227 * sync sample flag. */
3228 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3229 trk->has_keyframes = 1;
3233 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3235 else if (trk->vc1_info.packet_seq)
3237 else if (trk->vc1_info.packet_entry)
3240 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3241 trk->has_keyframes++;
3245 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3247 MOVMuxContext *mov = s->priv_data;
3252 if (!track->mdat_buf)
3254 if (!mov->mdat_buf) {
3255 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3258 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3259 track->mdat_buf = NULL;
3261 offset = avio_tell(mov->mdat_buf);
3262 avio_write(mov->mdat_buf, buf, buf_size);
3265 for (i = track->entries_flushed; i < track->entry; i++)
3266 track->cluster[i].pos += offset;
3267 track->entries_flushed = track->entry;
3271 static int mov_flush_fragment(AVFormatContext *s, int force)
3273 MOVMuxContext *mov = s->priv_data;
3274 int i, first_track = -1;
3275 int64_t mdat_size = 0;
3276 int has_video = 0, starts_with_key = 0, first_video_track = 1;
3278 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3281 // Try to fill in the duration of the last packet in each stream
3282 // from queued packets in the interleave queues. If the flushing
3283 // of fragments was triggered automatically by an AVPacket, we
3284 // already have reliable info for the end of that track, but other
3285 // tracks may need to be filled in.
3286 for (i = 0; i < s->nb_streams; i++) {
3287 MOVTrack *track = &mov->tracks[i];
3288 if (!track->end_reliable) {
3290 if (!ff_interleaved_peek(s, i, &pkt, 1)) {
3291 track->track_duration = pkt.dts - track->start_dts;
3292 if (pkt.pts != AV_NOPTS_VALUE)
3293 track->end_pts = pkt.pts;
3295 track->end_pts = pkt.dts;
3300 for (i = 0; i < mov->nb_streams; i++) {
3301 MOVTrack *track = &mov->tracks[i];
3302 if (track->entry <= 1)
3304 // Sample durations are calculated as the diff of dts values,
3305 // but for the last sample in a fragment, we don't know the dts
3306 // of the first sample in the next fragment, so we have to rely
3307 // on what was set as duration in the AVPacket. Not all callers
3308 // set this though, so we might want to replace it with an
3309 // estimate if it currently is zero.
3310 if (get_cluster_duration(track, track->entry - 1) != 0)
3312 // Use the duration (i.e. dts diff) of the second last sample for
3313 // the last one. This is a wild guess (and fatal if it turns out
3314 // to be too long), but probably the best we can do - having a zero
3315 // duration is bad as well.
3316 track->track_duration += get_cluster_duration(track, track->entry - 2);
3317 track->end_pts += get_cluster_duration(track, track->entry - 2);
3318 if (!mov->missing_duration_warned) {
3319 av_log(s, AV_LOG_WARNING,
3320 "Estimating the duration of the last packet in a "
3321 "fragment, consider setting the duration field in "
3322 "AVPacket instead.\n");
3323 mov->missing_duration_warned = 1;
3327 if (!mov->moov_written) {
3328 int64_t pos = avio_tell(s->pb);
3330 AVIOContext *moov_buf;
3334 for (i = 0; i < mov->nb_streams; i++)
3335 if (!mov->tracks[i].entry)
3337 /* Don't write the initial moov unless all tracks have data */
3338 if (i < mov->nb_streams && !force)
3341 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3343 mov_write_moov_tag(moov_buf, mov, s);
3344 buf_size = ffio_close_null_buf(moov_buf);
3345 for (i = 0; i < mov->nb_streams; i++)
3346 mov->tracks[i].data_offset = pos + buf_size + 8;
3348 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
3349 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3350 mov_write_identification(s->pb, s);
3351 mov_write_moov_tag(s->pb, mov, s);
3353 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3354 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3355 mov->reserved_header_pos = avio_tell(s->pb);
3357 mov->moov_written = 1;
3361 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3362 mov->mdat_buf = NULL;
3363 avio_wb32(s->pb, buf_size + 8);
3364 ffio_wfourcc(s->pb, "mdat");
3365 avio_write(s->pb, buf, buf_size);
3368 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3369 mov->reserved_header_pos = avio_tell(s->pb);
3371 mov->moov_written = 1;
3373 for (i = 0; i < mov->nb_streams; i++) {
3374 if (mov->tracks[i].entry)
3375 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3376 mov->tracks[i].track_duration -
3377 mov->tracks[i].cluster[0].dts;
3378 mov->tracks[i].entry = 0;
3379 mov->tracks[i].end_reliable = 0;
3385 if (mov->frag_interleave) {
3386 for (i = 0; i < mov->nb_streams; i++) {
3387 MOVTrack *track = &mov->tracks[i];
3389 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3395 mdat_size = avio_tell(mov->mdat_buf);
3398 for (i = 0; i < mov->nb_streams; i++) {
3399 MOVTrack *track = &mov->tracks[i];
3400 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3401 track->data_offset = 0;
3403 track->data_offset = mdat_size;
3404 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3406 if (first_video_track) {
3408 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3409 first_video_track = 0;
3414 if (track->mdat_buf)
3415 mdat_size += avio_tell(track->mdat_buf);
3416 if (first_track < 0)
3423 avio_write_marker(s->pb,
3424 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
3425 (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);
3427 for (i = 0; i < mov->nb_streams; i++) {
3428 MOVTrack *track = &mov->tracks[i];
3429 int buf_size, write_moof = 1, moof_tracks = -1;
3431 int64_t duration = 0;
3434 duration = track->start_dts + track->track_duration -
3435 track->cluster[0].dts;
3436 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3437 if (!track->mdat_buf)
3439 mdat_size = avio_tell(track->mdat_buf);
3442 write_moof = i == first_track;
3448 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3451 avio_wb32(s->pb, mdat_size + 8);
3452 ffio_wfourcc(s->pb, "mdat");
3456 track->frag_start += duration;
3458 track->entries_flushed = 0;
3459 track->end_reliable = 0;
3460 if (!mov->frag_interleave) {
3461 if (!track->mdat_buf)
3463 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3464 track->mdat_buf = NULL;
3468 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3469 mov->mdat_buf = NULL;
3472 avio_write(s->pb, buf, buf_size);
3482 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
3484 MOVMuxContext *mov = s->priv_data;
3485 int had_moov = mov->moov_written;
3486 int ret = mov_flush_fragment(s, force);
3489 // If using delay_moov, the first flush only wrote the moov,
3490 // not the actual moof+mdat pair, thus flush once again.
3491 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3492 ret = mov_flush_fragment(s, force);
3496 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3498 MOVMuxContext *mov = s->priv_data;
3499 AVIOContext *pb = s->pb;
3500 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3501 AVCodecParameters *par = trk->par;
3502 unsigned int samples_in_chunk = 0;
3503 int size = pkt->size, ret = 0;
3504 uint8_t *reformatted_data = NULL;
3506 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3508 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3509 if (mov->frag_interleave && mov->fragments > 0) {
3510 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3511 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3516 if (!trk->mdat_buf) {
3517 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3522 if (!mov->mdat_buf) {
3523 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3530 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
3531 /* We must find out how many AMR blocks there are in one packet */
3532 static const uint16_t packed_size[16] =
3533 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3536 while (len < size && samples_in_chunk < 100) {
3537 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3540 if (samples_in_chunk > 1) {
3541 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3544 } else if (trk->sample_size)
3545 samples_in_chunk = size / trk->sample_size;
3547 samples_in_chunk = 1;
3549 /* copy extradata if it exists */
3550 if (trk->vos_len == 0 && par->extradata_size > 0) {
3551 trk->vos_len = par->extradata_size;
3552 trk->vos_data = av_malloc(trk->vos_len);
3553 if (!trk->vos_data) {
3554 ret = AVERROR(ENOMEM);
3557 memcpy(trk->vos_data, par->extradata, trk->vos_len);
3560 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3561 /* from x264 or from bytestream H.264 */
3562 /* NAL reformatting needed */
3563 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3564 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3566 avio_write(pb, reformatted_data, size);
3568 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3570 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3571 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3572 /* extradata is Annex B, assume the bitstream is too and convert it */
3573 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3574 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3575 avio_write(pb, reformatted_data, size);
3577 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3580 avio_write(pb, pkt->data, size);
3583 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
3584 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3585 /* copy frame to create needed atoms */
3586 trk->vos_len = size;
3587 trk->vos_data = av_malloc(size);
3588 if (!trk->vos_data) {
3589 ret = AVERROR(ENOMEM);
3592 memcpy(trk->vos_data, pkt->data, size);
3595 if (trk->entry >= trk->cluster_capacity) {
3596 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3597 if (av_reallocp_array(&trk->cluster, new_capacity,
3598 sizeof(*trk->cluster))) {
3599 ret = AVERROR(ENOMEM);
3602 trk->cluster_capacity = new_capacity;
3605 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3606 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3607 trk->cluster[trk->entry].size = size;
3608 trk->cluster[trk->entry].entries = samples_in_chunk;
3609 trk->cluster[trk->entry].dts = pkt->dts;
3610 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3611 if (!trk->frag_discont) {
3612 /* First packet of a new fragment. We already wrote the duration
3613 * of the last packet of the previous fragment based on track_duration,
3614 * which might not exactly match our dts. Therefore adjust the dts
3615 * of this packet to be what the previous packets duration implies. */
3616 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3617 /* We also may have written the pts and the corresponding duration
3618 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3619 * the next fragment. This means the cts of the first sample must
3620 * be the same in all fragments, unless end_pts was updated by
3621 * the packet causing the fragment to be written. */
3622 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
3623 mov->mode == MODE_ISM)
3624 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3626 /* New fragment, but discontinuous from previous fragments.
3627 * Pretend the duration sum of the earlier fragments is
3628 * pkt->dts - trk->start_dts. */
3629 trk->frag_start = pkt->dts - trk->start_dts;
3630 trk->end_pts = AV_NOPTS_VALUE;
3631 trk->frag_discont = 0;
3634 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3635 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3636 /* Not using edit lists and shifting the first track to start from zero.
3637 * If the other streams start from a later timestamp, we won't be able
3638 * to signal the difference in starting time without an edit list.
3639 * Thus move the timestamp for this first sample to 0, increasing
3640 * its duration instead. */
3641 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3643 if (trk->start_dts == AV_NOPTS_VALUE) {
3644 trk->start_dts = pkt->dts;
3645 if (trk->frag_discont) {
3646 if (mov->use_editlist) {
3647 /* Pretend the whole stream started at pts=0, with earlier fragments
3648 * already written. If the stream started at pts=0, the duration sum
3649 * of earlier fragments would have been pkt->pts. */
3650 trk->frag_start = pkt->pts;
3651 trk->start_dts = pkt->dts - pkt->pts;
3653 /* Pretend the whole stream started at dts=0, with earlier fragments
3654 * already written, with a duration summing up to pkt->dts. */
3655 trk->frag_start = pkt->dts;
3658 trk->frag_discont = 0;
3659 } else if (pkt->dts && mov->moov_written)
3660 av_log(s, AV_LOG_WARNING,
3661 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3662 "already has been written. Set the delay_moov flag to handle "
3664 pkt->stream_index, pkt->dts);
3666 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3668 if (pkt->pts == AV_NOPTS_VALUE) {
3669 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3670 pkt->pts = pkt->dts;
3672 if (pkt->dts != pkt->pts)
3673 trk->flags |= MOV_TRACK_CTTS;
3674 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3675 trk->cluster[trk->entry].flags = 0;
3676 if (trk->start_cts == AV_NOPTS_VALUE)
3677 trk->start_cts = pkt->pts - pkt->dts;
3678 if (trk->end_pts == AV_NOPTS_VALUE)
3679 trk->end_pts = trk->cluster[trk->entry].dts +
3680 trk->cluster[trk->entry].cts + pkt->duration;
3682 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3683 trk->cluster[trk->entry].cts +
3686 if (par->codec_id == AV_CODEC_ID_VC1) {
3687 mov_parse_vc1_frame(pkt, trk);
3688 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3689 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3690 trk->entry > 0) { // force sync sample for the first key frame
3691 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3692 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3693 trk->flags |= MOV_TRACK_STPS;
3695 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3697 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3698 trk->has_keyframes++;
3701 trk->sample_count += samples_in_chunk;
3702 mov->mdat_size += size;
3704 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3705 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3706 reformatted_data, size);
3709 av_free(reformatted_data);
3713 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3716 mov_flush_fragment(s, 1);
3719 MOVMuxContext *mov = s->priv_data;
3720 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3721 AVCodecParameters *par = trk->par;
3722 int64_t frag_duration = 0;
3723 int size = pkt->size;
3725 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3727 for (i = 0; i < s->nb_streams; i++)
3728 mov->tracks[i].frag_discont = 1;
3729 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3733 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
3734 trk->start_dts = pkt->dts;
3735 if (pkt->pts != AV_NOPTS_VALUE)
3736 trk->start_cts = pkt->pts - pkt->dts;
3741 return 0; /* Discard 0 sized packets */
3745 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3746 s->streams[pkt->stream_index]->time_base,
3748 if ((mov->max_fragment_duration &&
3749 frag_duration >= mov->max_fragment_duration) ||
3750 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3751 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3752 par->codec_type == AVMEDIA_TYPE_VIDEO &&
3753 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3754 if (frag_duration >= mov->min_fragment_duration) {
3755 // Set the duration of this track to line up with the next
3756 // sample in this track. This avoids relying on AVPacket
3757 // duration, but only helps for this particular track, not
3758 // for the other ones that are flushed at the same time.
3759 trk->track_duration = pkt->dts - trk->start_dts;
3760 if (pkt->pts != AV_NOPTS_VALUE)
3761 trk->end_pts = pkt->pts;
3763 trk->end_pts = pkt->dts;
3764 trk->end_reliable = 1;
3765 mov_auto_flush_fragment(s, 0);
3769 return ff_mov_write_packet(s, pkt);
3773 // QuickTime chapters involve an additional text track with the chapter names
3774 // as samples, and a tref pointing from the other tracks to the chapter one.
3775 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3777 MOVMuxContext *mov = s->priv_data;
3778 MOVTrack *track = &mov->tracks[tracknum];
3779 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3781 // These properties are required to make QT recognize the chapter track
3782 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3784 track->mode = mov->mode;
3785 track->tag = MKTAG('t','e','x','t');
3786 track->timescale = MOV_TIMESCALE;
3787 track->par = avcodec_parameters_alloc();
3789 return AVERROR(ENOMEM);
3790 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
3791 track->par->extradata = av_malloc(sizeof(chapter_properties));
3792 if (!track->par->extradata)
3793 return AVERROR(ENOMEM);
3794 track->par->extradata_size = sizeof(chapter_properties);
3795 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
3797 for (i = 0; i < s->nb_chapters; i++) {
3798 AVChapter *c = s->chapters[i];
3799 AVDictionaryEntry *t;
3801 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3802 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3803 pkt.duration = end - pkt.dts;
3805 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3806 static const char encd[12] = {
3807 0x00, 0x00, 0x00, 0x0C,
3809 0x00, 0x00, 0x01, 0x00 };
3810 len = strlen(t->value);
3811 pkt.size = len + 2 + 12;
3812 pkt.data = av_malloc(pkt.size);
3814 return AVERROR(ENOMEM);
3815 AV_WB16(pkt.data, len);
3816 memcpy(pkt.data + 2, t->value, len);
3817 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3818 ff_mov_write_packet(s, &pkt);
3819 av_freep(&pkt.data);
3827 * st->disposition controls the "enabled" flag in the tkhd tag.
3828 * QuickTime will not play a track if it is not enabled. So make sure
3829 * that one track of each type (audio, video, subtitle) is enabled.
3831 * Subtitles are special. For audio and video, setting "enabled" also
3832 * makes the track "default" (i.e. it is rendered when played). For
3833 * subtitles, an "enabled" subtitle is not rendered by default, but
3834 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3837 static void enable_tracks(AVFormatContext *s)
3839 MOVMuxContext *mov = s->priv_data;
3841 int enabled[AVMEDIA_TYPE_NB];
3842 int first[AVMEDIA_TYPE_NB];
3844 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3849 for (i = 0; i < s->nb_streams; i++) {
3850 AVStream *st = s->streams[i];
3852 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3853 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
3856 if (first[st->codecpar->codec_type] < 0)
3857 first[st->codecpar->codec_type] = i;
3858 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3859 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3860 enabled[st->codecpar->codec_type]++;
3864 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3866 case AVMEDIA_TYPE_VIDEO:
3867 case AVMEDIA_TYPE_AUDIO:
3868 case AVMEDIA_TYPE_SUBTITLE:
3870 mov->per_stream_grouping = 1;
3871 if (!enabled[i] && first[i] >= 0)
3872 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3878 static void mov_free(AVFormatContext *s)
3880 MOVMuxContext *mov = s->priv_data;
3883 if (mov->chapter_track)
3884 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
3886 for (i = 0; i < mov->nb_streams; i++) {
3887 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3888 ff_mov_close_hinting(&mov->tracks[i]);
3889 av_freep(&mov->tracks[i].cluster);
3890 av_freep(&mov->tracks[i].frag_info);
3892 if (mov->tracks[i].vos_len)
3893 av_free(mov->tracks[i].vos_data);
3896 av_freep(&mov->tracks);
3899 static uint32_t rgb_to_yuv(uint32_t rgb)
3904 r = (rgb >> 16) & 0xFF;
3905 g = (rgb >> 8) & 0xFF;
3908 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3909 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3910 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3912 return (y << 16) | (cr << 8) | cb;
3915 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3918 int i, width = 720, height = 480;
3919 int have_palette = 0, have_size = 0;
3920 uint32_t palette[16];
3921 char *cur = st->codecpar->extradata;
3923 while (cur && *cur) {
3924 if (strncmp("palette:", cur, 8) == 0) {
3926 count = sscanf(cur + 8,
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 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3931 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3932 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3933 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3934 &palette[12], &palette[13], &palette[14], &palette[15]);
3936 for (i = 0; i < count; i++) {
3937 palette[i] = rgb_to_yuv(palette[i]);
3940 } else if (!strncmp("size:", cur, 5)) {
3941 sscanf(cur + 5, "%dx%d", &width, &height);
3944 if (have_palette && have_size)
3946 cur += strcspn(cur, "\n\r");
3947 cur += strspn(cur, "\n\r");
3950 track->vos_data = av_malloc(16*4);
3951 if (!track->vos_data)
3952 return AVERROR(ENOMEM);
3953 for (i = 0; i < 16; i++) {
3954 AV_WB32(track->vos_data + i * 4, palette[i]);
3956 track->vos_len = 16 * 4;
3958 st->codecpar->width = width;
3959 st->codecpar->height = track->height = height;
3964 static int mov_write_header(AVFormatContext *s)
3966 AVIOContext *pb = s->pb;
3967 MOVMuxContext *mov = s->priv_data;
3968 AVDictionaryEntry *t;
3969 int i, ret, hint_track = 0;
3973 /* Default mode == MP4 */
3974 mov->mode = MODE_MP4;
3977 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3978 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3979 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3980 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3981 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3982 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3983 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3986 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3987 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3989 /* Set the FRAGMENT flag if any of the fragmentation methods are
3991 if (mov->max_fragment_duration || mov->max_fragment_size ||
3992 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3993 FF_MOV_FLAG_FRAG_KEYFRAME |
3994 FF_MOV_FLAG_FRAG_CUSTOM))
3995 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3997 /* Set other implicit flags immediately */
3998 if (mov->mode == MODE_ISM)
3999 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
4000 FF_MOV_FLAG_FRAGMENT;
4001 if (mov->flags & FF_MOV_FLAG_DASH)
4002 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
4003 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
4005 if (mov->use_editlist < 0) {
4006 mov->use_editlist = 1;
4007 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
4008 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4009 // If we can avoid needing an edit list by shifting the
4010 // tracks, prefer that over (trying to) write edit lists
4011 // in fragmented output.
4012 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
4013 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
4014 mov->use_editlist = 0;
4017 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4018 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
4019 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
4021 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
4022 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
4024 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
4025 * if the latter is set that's enough and omit_tfhd_offset doesn't
4026 * add anything extra on top of that. */
4027 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4028 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4029 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
4031 if (mov->frag_interleave &&
4032 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
4033 av_log(s, AV_LOG_ERROR,
4034 "Sample interleaving in fragments is mutually exclusive with "
4035 "omit_tfhd_offset and separate_moof\n");
4036 return AVERROR(EINVAL);
4039 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
4040 * is enabled, we don't support non-seekable output at all. */
4041 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
4042 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
4043 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4044 return AVERROR(EINVAL);
4048 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4049 if ((ret = mov_write_identification(pb, s)) < 0)
4053 mov->nb_streams = s->nb_streams;
4054 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4055 mov->chapter_track = mov->nb_streams++;
4057 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4058 /* Add hint tracks for each audio and video stream */
4059 hint_track = mov->nb_streams;
4060 for (i = 0; i < s->nb_streams; i++) {
4061 AVStream *st = s->streams[i];
4062 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4063 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4069 // Reserve an extra stream for chapters for the case where chapters
4070 // are written in the trailer
4071 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
4073 return AVERROR(ENOMEM);
4075 for (i = 0; i < s->nb_streams; i++) {
4076 AVStream *st= s->streams[i];
4077 MOVTrack *track= &mov->tracks[i];
4078 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4081 track->par = st->codecpar;
4082 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4083 if (track->language < 0)
4084 track->language = 0;
4085 track->mode = mov->mode;
4086 track->tag = mov_find_codec_tag(s, track);
4088 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
4089 "codec not currently supported in container\n", i);
4092 /* If hinting of this track is enabled by a later hint track,
4093 * this is updated. */
4094 track->hint_track = -1;
4095 track->start_dts = AV_NOPTS_VALUE;
4096 track->start_cts = AV_NOPTS_VALUE;
4097 track->end_pts = AV_NOPTS_VALUE;
4098 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
4099 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4100 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4101 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4102 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
4103 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4106 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4108 track->timescale = st->time_base.den;
4109 if (track->mode == MODE_MOV && track->timescale > 100000)
4110 av_log(s, AV_LOG_WARNING,
4111 "WARNING codec timebase is very high. If duration is too long,\n"
4112 "file may not be playable by quicktime. Specify a shorter timebase\n"
4113 "or choose different container.\n");
4114 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4115 track->timescale = st->codecpar->sample_rate;
4116 /* set sample_size for PCM and ADPCM */
4117 if (av_get_bits_per_sample(st->codecpar->codec_id) ||
4118 st->codecpar->codec_id == AV_CODEC_ID_ILBC) {
4119 if (!st->codecpar->block_align) {
4120 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
4123 track->sample_size = st->codecpar->block_align;
4125 /* set audio_vbr for compressed audio */
4126 if (av_get_bits_per_sample(st->codecpar->codec_id) < 8) {
4127 track->audio_vbr = 1;
4129 if (track->mode != MODE_MOV &&
4130 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4131 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4132 i, track->par->sample_rate);
4135 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4136 track->timescale = st->time_base.den;
4137 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
4138 track->timescale = st->time_base.den;
4141 track->height = st->codecpar->height;
4142 /* The ism specific timescale isn't mandatory, but is assumed by
4143 * some tools, such as mp4split. */
4144 if (mov->mode == MODE_ISM)
4145 track->timescale = 10000000;
4147 avpriv_set_pts_info(st, 64, 1, track->timescale);
4149 /* copy extradata if it exists */
4150 if (st->codecpar->extradata_size) {
4151 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4152 mov_create_dvd_sub_decoder_specific_info(track, st);
4154 track->vos_len = st->codecpar->extradata_size;
4155 track->vos_data = av_malloc(track->vos_len);
4156 if (!track->vos_data)
4158 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
4165 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4166 /* If no fragmentation options have been set, set a default. */
4167 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4168 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4169 !mov->max_fragment_duration && !mov->max_fragment_size)
4170 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4172 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4173 mov->reserved_header_pos = avio_tell(pb);
4174 mov_write_mdat_tag(pb, mov);
4177 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4178 mov->time = ff_iso8601_to_unix_time(t->value);
4180 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4182 if (mov->chapter_track)
4183 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4186 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4187 /* Initialize the hint tracks for each audio and video stream */
4188 for (i = 0; i < s->nb_streams; i++) {
4189 AVStream *st = s->streams[i];
4190 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4191 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4192 ff_mov_init_hinting(s, hint_track, i);
4200 if (mov->flags & FF_MOV_FLAG_ISML)
4201 mov_write_isml_manifest(pb, mov);
4203 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4204 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4205 mov_write_moov_tag(pb, mov, s);
4207 mov->moov_written = 1;
4208 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4209 mov->reserved_header_pos = avio_tell(pb);
4218 static int get_moov_size(AVFormatContext *s)
4221 AVIOContext *moov_buf;
4222 MOVMuxContext *mov = s->priv_data;
4224 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4226 mov_write_moov_tag(moov_buf, mov, s);
4227 return ffio_close_null_buf(moov_buf);
4230 static int get_sidx_size(AVFormatContext *s)
4234 MOVMuxContext *mov = s->priv_data;
4236 if ((ret = ffio_open_null_buf(&buf)) < 0)
4238 mov_write_sidx_tags(buf, mov, -1, 0);
4239 return ffio_close_null_buf(buf);
4243 * This function gets the moov size if moved to the top of the file: the chunk
4244 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4245 * entries) when the moov is moved to the beginning, so the size of the moov
4246 * would change. It also updates the chunk offset tables.
4248 static int compute_moov_size(AVFormatContext *s)
4250 int i, moov_size, moov_size2;
4251 MOVMuxContext *mov = s->priv_data;
4253 moov_size = get_moov_size(s);
4257 for (i = 0; i < mov->nb_streams; i++)
4258 mov->tracks[i].data_offset += moov_size;
4260 moov_size2 = get_moov_size(s);
4264 /* if the size changed, we just switched from stco to co64 and need to
4265 * update the offsets */
4266 if (moov_size2 != moov_size)
4267 for (i = 0; i < mov->nb_streams; i++)
4268 mov->tracks[i].data_offset += moov_size2 - moov_size;
4273 static int compute_sidx_size(AVFormatContext *s)
4276 MOVMuxContext *mov = s->priv_data;
4278 sidx_size = get_sidx_size(s);
4282 for (i = 0; i < mov->nb_streams; i++)
4283 mov->tracks[i].data_offset += sidx_size;
4288 static int shift_data(AVFormatContext *s)
4290 int ret = 0, moov_size;
4291 MOVMuxContext *mov = s->priv_data;
4292 int64_t pos, pos_end = avio_tell(s->pb);
4293 uint8_t *buf, *read_buf[2];
4294 int read_buf_id = 0;
4296 AVIOContext *read_pb;
4298 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4299 moov_size = compute_sidx_size(s);
4301 moov_size = compute_moov_size(s);
4305 buf = av_malloc(moov_size * 2);
4307 return AVERROR(ENOMEM);
4309 read_buf[1] = buf + moov_size;
4311 /* Shift the data: the AVIO context of the output can only be used for
4312 * writing, so we re-open the same output, but for reading. It also avoids
4313 * a read/seek/write/seek back and forth. */
4315 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
4317 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4318 "the second pass (faststart)\n", s->filename);
4322 /* mark the end of the shift to up to the last data we wrote, and get ready
4324 pos_end = avio_tell(s->pb);
4325 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4327 /* start reading at where the new moov will be placed */
4328 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4329 pos = avio_tell(read_pb);
4331 #define READ_BLOCK do { \
4332 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4336 /* shift data by chunk of at most moov_size */
4341 n = read_size[read_buf_id];
4344 avio_write(s->pb, read_buf[read_buf_id], n);
4346 } while (pos < pos_end);
4347 ff_format_io_close(s, &read_pb);
4354 static int mov_write_trailer(AVFormatContext *s)
4356 MOVMuxContext *mov = s->priv_data;
4357 AVIOContext *pb = s->pb;
4362 // If there were no chapters when the header was written, but there
4363 // are chapters now, write them in the trailer. This only works
4364 // when we are not doing fragments.
4365 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4366 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4367 mov->chapter_track = mov->nb_streams++;
4368 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4373 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4374 moov_pos = avio_tell(pb);
4376 /* Write size of mdat tag */
4377 if (mov->mdat_size + 8 <= UINT32_MAX) {
4378 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4379 avio_wb32(pb, mov->mdat_size + 8);
4381 /* overwrite 'wide' placeholder atom */
4382 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4383 /* special value: real atom size will be 64 bit value after
4386 ffio_wfourcc(pb, "mdat");
4387 avio_wb64(pb, mov->mdat_size + 16);
4389 avio_seek(pb, moov_pos, SEEK_SET);
4391 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4392 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4393 res = shift_data(s);
4395 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4396 mov_write_moov_tag(pb, mov, s);
4399 mov_write_moov_tag(pb, mov, s);
4402 mov_auto_flush_fragment(s, 1);
4403 for (i = 0; i < mov->nb_streams; i++)
4404 mov->tracks[i].data_offset = 0;
4405 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
4406 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4407 res = shift_data(s);
4409 int64_t end = avio_tell(pb);
4410 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4411 mov_write_sidx_tags(pb, mov, -1, 0);
4412 avio_seek(pb, end, SEEK_SET);
4413 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4414 mov_write_mfra_tag(pb, mov);
4416 } else if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
4417 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4418 mov_write_mfra_tag(pb, mov);
4428 #if CONFIG_MOV_MUXER
4430 AVOutputFormat ff_mov_muxer = {
4432 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4433 .extensions = "mov",
4434 .priv_data_size = sizeof(MOVMuxContext),
4435 .audio_codec = AV_CODEC_ID_AAC,
4436 .video_codec = CONFIG_LIBX264_ENCODER ?
4437 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4438 .write_header = mov_write_header,
4439 .write_packet = mov_write_packet,
4440 .write_trailer = mov_write_trailer,
4441 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4442 .codec_tag = (const AVCodecTag* const []){
4443 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4445 .priv_class = &mov_muxer_class,
4448 #if CONFIG_TGP_MUXER
4450 AVOutputFormat ff_tgp_muxer = {
4452 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4453 .extensions = "3gp",
4454 .priv_data_size = sizeof(MOVMuxContext),
4455 .audio_codec = AV_CODEC_ID_AMR_NB,
4456 .video_codec = AV_CODEC_ID_H263,
4457 .write_header = mov_write_header,
4458 .write_packet = mov_write_packet,
4459 .write_trailer = mov_write_trailer,
4460 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4461 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4462 .priv_class = &tgp_muxer_class,
4465 #if CONFIG_MP4_MUXER
4467 AVOutputFormat ff_mp4_muxer = {
4469 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4470 .mime_type = "application/mp4",
4471 .extensions = "mp4",
4472 .priv_data_size = sizeof(MOVMuxContext),
4473 .audio_codec = AV_CODEC_ID_AAC,
4474 .video_codec = CONFIG_LIBX264_ENCODER ?
4475 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4476 .write_header = mov_write_header,
4477 .write_packet = mov_write_packet,
4478 .write_trailer = mov_write_trailer,
4479 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4480 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4481 .priv_class = &mp4_muxer_class,
4484 #if CONFIG_PSP_MUXER
4486 AVOutputFormat ff_psp_muxer = {
4488 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4489 .extensions = "mp4,psp",
4490 .priv_data_size = sizeof(MOVMuxContext),
4491 .audio_codec = AV_CODEC_ID_AAC,
4492 .video_codec = CONFIG_LIBX264_ENCODER ?
4493 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4494 .write_header = mov_write_header,
4495 .write_packet = mov_write_packet,
4496 .write_trailer = mov_write_trailer,
4497 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4498 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4499 .priv_class = &psp_muxer_class,
4502 #if CONFIG_TG2_MUXER
4504 AVOutputFormat ff_tg2_muxer = {
4506 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4507 .extensions = "3g2",
4508 .priv_data_size = sizeof(MOVMuxContext),
4509 .audio_codec = AV_CODEC_ID_AMR_NB,
4510 .video_codec = AV_CODEC_ID_H263,
4511 .write_header = mov_write_header,
4512 .write_packet = mov_write_packet,
4513 .write_trailer = mov_write_trailer,
4514 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4515 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4516 .priv_class = &tg2_muxer_class,
4519 #if CONFIG_IPOD_MUXER
4521 AVOutputFormat ff_ipod_muxer = {
4523 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4524 .mime_type = "application/mp4",
4525 .extensions = "m4v,m4a",
4526 .priv_data_size = sizeof(MOVMuxContext),
4527 .audio_codec = AV_CODEC_ID_AAC,
4528 .video_codec = AV_CODEC_ID_H264,
4529 .write_header = mov_write_header,
4530 .write_packet = mov_write_packet,
4531 .write_trailer = mov_write_trailer,
4532 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4533 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
4534 .priv_class = &ipod_muxer_class,
4537 #if CONFIG_ISMV_MUXER
4539 AVOutputFormat ff_ismv_muxer = {
4541 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4542 .mime_type = "application/mp4",
4543 .extensions = "ismv,isma",
4544 .priv_data_size = sizeof(MOVMuxContext),
4545 .audio_codec = AV_CODEC_ID_AAC,
4546 .video_codec = AV_CODEC_ID_H264,
4547 .write_header = mov_write_header,
4548 .write_packet = mov_write_packet,
4549 .write_trailer = mov_write_trailer,
4550 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4551 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
4552 .priv_class = &ismv_muxer_class,
4555 #if CONFIG_F4V_MUXER
4557 AVOutputFormat ff_f4v_muxer = {
4559 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4560 .mime_type = "application/f4v",
4561 .extensions = "f4v",
4562 .priv_data_size = sizeof(MOVMuxContext),
4563 .audio_codec = AV_CODEC_ID_AAC,
4564 .video_codec = AV_CODEC_ID_H264,
4565 .write_header = mov_write_header,
4566 .write_packet = mov_write_packet,
4567 .write_trailer = mov_write_trailer,
4568 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4569 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4570 .priv_class = &f4v_muxer_class,