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/internal.h"
36 #include "libavcodec/bitstream.h"
37 #include "libavcodec/put_bits.h"
38 #include "libavcodec/vc1_common.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/intfloat.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/opt.h"
44 #include "libavutil/dict.h"
49 static const AVOption options[] = {
50 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
51 { "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" },
52 { "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" },
53 { "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" },
54 { "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" },
55 { "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" },
56 { "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" },
57 { "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" },
58 { "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" },
59 { "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" },
60 { "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" },
61 { "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" },
62 { "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" },
63 { "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" },
64 { "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" },
65 { "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" },
66 { "negative_cts_offsets", "Use negative CTS offsets (reducing the need for edit lists)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
67 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
68 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
69 { "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},
70 { "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},
71 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
72 { "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},
73 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
74 { "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},
75 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
76 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
77 { "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},
78 { "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 },
82 #define MOV_CLASS(flavor)\
83 static const AVClass flavor ## _muxer_class = {\
84 .class_name = #flavor " muxer",\
85 .item_name = av_default_item_name,\
87 .version = LIBAVUTIL_VERSION_INT,\
90 static int utf8len(const uint8_t *b)
95 GET_UTF8(val, *b++, return -1;)
101 //FIXME support 64 bit variant with wide placeholders
102 static int64_t update_size(AVIOContext *pb, int64_t pos)
104 int64_t curpos = avio_tell(pb);
105 avio_seek(pb, pos, SEEK_SET);
106 avio_wb32(pb, curpos - pos); /* rewrite size */
107 avio_seek(pb, curpos, SEEK_SET);
112 static int co64_required(const MOVTrack *track)
114 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
119 /* Chunk offset atom */
120 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
123 int mode64 = co64_required(track); // use 32 bit size variant if possible
124 int64_t pos = avio_tell(pb);
125 avio_wb32(pb, 0); /* size */
127 ffio_wfourcc(pb, "co64");
129 ffio_wfourcc(pb, "stco");
130 avio_wb32(pb, 0); /* version & flags */
131 avio_wb32(pb, track->entry); /* entry count */
132 for (i = 0; i < track->entry; i++) {
134 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
136 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
138 return update_size(pb, pos);
141 /* Sample size atom */
142 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
145 int i, j, entries = 0, tst = -1, oldtst = -1;
147 int64_t pos = avio_tell(pb);
148 avio_wb32(pb, 0); /* size */
149 ffio_wfourcc(pb, "stsz");
150 avio_wb32(pb, 0); /* version & flags */
152 for (i = 0; i < track->entry; i++) {
153 tst = track->cluster[i].size / track->cluster[i].entries;
154 if (oldtst != -1 && tst != oldtst)
157 entries += track->cluster[i].entries;
159 if (equalChunks && track->entry) {
160 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
161 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
162 avio_wb32(pb, sSize); // sample size
163 avio_wb32(pb, entries); // sample count
165 avio_wb32(pb, 0); // sample size
166 avio_wb32(pb, entries); // sample count
167 for (i = 0; i < track->entry; i++) {
168 for (j = 0; j < track->cluster[i].entries; j++) {
169 avio_wb32(pb, track->cluster[i].size /
170 track->cluster[i].entries);
174 return update_size(pb, pos);
177 /* Sample to chunk atom */
178 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
180 int index = 0, oldval = -1, i;
181 int64_t entryPos, curpos;
183 int64_t pos = avio_tell(pb);
184 avio_wb32(pb, 0); /* size */
185 ffio_wfourcc(pb, "stsc");
186 avio_wb32(pb, 0); // version & flags
187 entryPos = avio_tell(pb);
188 avio_wb32(pb, track->entry); // entry count
189 for (i = 0; i < track->entry; i++) {
190 if (oldval != track->cluster[i].samples_in_chunk) {
191 avio_wb32(pb, i + 1); // first chunk
192 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
193 avio_wb32(pb, 0x1); // sample description index
194 oldval = track->cluster[i].samples_in_chunk;
198 curpos = avio_tell(pb);
199 avio_seek(pb, entryPos, SEEK_SET);
200 avio_wb32(pb, index); // rewrite size
201 avio_seek(pb, curpos, SEEK_SET);
203 return update_size(pb, pos);
206 /* Sync sample atom */
207 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
209 int64_t curpos, entryPos;
211 int64_t pos = avio_tell(pb);
212 avio_wb32(pb, 0); // size
213 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
214 avio_wb32(pb, 0); // version & flags
215 entryPos = avio_tell(pb);
216 avio_wb32(pb, track->entry); // entry count
217 for (i = 0; i < track->entry; i++) {
218 if (track->cluster[i].flags & flag) {
219 avio_wb32(pb, i + 1);
223 curpos = avio_tell(pb);
224 avio_seek(pb, entryPos, SEEK_SET);
225 avio_wb32(pb, index); // rewrite size
226 avio_seek(pb, curpos, SEEK_SET);
227 return update_size(pb, pos);
230 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
232 avio_wb32(pb, 0x11); /* size */
233 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
234 else ffio_wfourcc(pb, "damr");
235 ffio_wfourcc(pb, "FFMP");
236 avio_w8(pb, 0); /* decoder version */
238 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
239 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
240 avio_w8(pb, 0x01); /* Frames per sample */
244 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
249 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
251 if (track->vos_len < 7)
255 ffio_wfourcc(pb, "dac3");
257 bitstream_init8(&bc, track->vos_data + 4, track->vos_len - 4);
258 fscod = bitstream_read(&bc, 2);
259 frmsizecod = bitstream_read(&bc, 6);
260 bsid = bitstream_read(&bc, 5);
261 bsmod = bitstream_read(&bc, 3);
262 acmod = bitstream_read(&bc, 3);
264 bitstream_skip(&bc, 2); // dsurmod
266 if ((acmod & 1) && acmod != 1)
267 bitstream_skip(&bc, 2); // cmixlev
269 bitstream_skip(&bc, 2); // surmixlev
271 lfeon = bitstream_read_bit(&bc);
273 init_put_bits(&pbc, buf, sizeof(buf));
274 put_bits(&pbc, 2, fscod);
275 put_bits(&pbc, 5, bsid);
276 put_bits(&pbc, 3, bsmod);
277 put_bits(&pbc, 3, acmod);
278 put_bits(&pbc, 1, lfeon);
279 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
280 put_bits(&pbc, 5, 0); // reserved
282 flush_put_bits(&pbc);
283 avio_write(pb, buf, sizeof(buf));
289 * This function writes extradata "as is".
290 * Extradata must be formatted like a valid atom (with size and tag).
292 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
294 avio_write(pb, track->par->extradata, track->par->extradata_size);
295 return track->par->extradata_size;
298 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
303 avio_w8(pb, (size >> (7 * i)) | 0x80);
304 avio_w8(pb, size & 0x7F);
307 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
309 AVCPBProperties *props;
310 int64_t pos = avio_tell(pb);
311 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
313 avio_wb32(pb, 0); // size
314 ffio_wfourcc(pb, "esds");
315 avio_wb32(pb, 0); // Version
318 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
319 avio_wb16(pb, track->track_id);
320 avio_w8(pb, 0x00); // flags (= no flags)
322 // DecoderConfig descriptor
323 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
325 // Object type indication
326 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
327 track->par->codec_id == AV_CODEC_ID_MP3) &&
328 track->par->sample_rate > 24000)
329 avio_w8(pb, 0x6B); // 11172-3
331 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
333 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
334 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
335 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
336 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
337 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
338 avio_w8(pb, 0x15); // flags (= Audiostream)
340 avio_w8(pb, 0x11); // flags (= Visualstream)
342 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
345 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
347 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)
348 if (!props || !props->min_bitrate || props->max_bitrate != props->min_bitrate)
349 avio_wb32(pb, 0); // vbr
351 avio_wb32(pb, props->max_bitrate); // avg bitrate
353 if (track->vos_len) {
354 // DecoderSpecific info descriptor
355 put_descr(pb, 0x05, track->vos_len);
356 avio_write(pb, track->vos_data, track->vos_len);
360 put_descr(pb, 0x06, 1);
362 return update_size(pb, pos);
365 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
367 int64_t pos = avio_tell(pb);
369 avio_wl32(pb, track->tag); // store it byteswapped
370 track->par->codec_tag = av_bswap16(track->tag >> 16);
371 ff_put_wav_header(s, pb, track->st->codecpar);
372 return update_size(pb, pos);
375 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
377 int64_t pos = avio_tell(pb);
379 ffio_wfourcc(pb, "wfex");
380 ff_put_wav_header(s, pb, track->st->codecpar);
381 return update_size(pb, pos);
384 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
386 uint32_t layout_tag, bitmap;
387 int64_t pos = avio_tell(pb);
389 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
390 track->par->channel_layout,
393 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
394 "lack of channel information\n");
398 avio_wb32(pb, 0); // Size
399 ffio_wfourcc(pb, "chan"); // Type
400 avio_w8(pb, 0); // Version
401 avio_wb24(pb, 0); // Flags
402 avio_wb32(pb, layout_tag); // mChannelLayoutTag
403 avio_wb32(pb, bitmap); // mChannelBitmap
404 avio_wb32(pb, 0); // mNumberChannelDescriptions
406 return update_size(pb, pos);
409 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
411 int64_t pos = avio_tell(pb);
413 avio_wb32(pb, 0); /* size */
414 ffio_wfourcc(pb, "wave");
416 avio_wb32(pb, 12); /* size */
417 ffio_wfourcc(pb, "frma");
418 avio_wl32(pb, track->tag);
420 if (track->par->codec_id == AV_CODEC_ID_AAC) {
421 /* useless atom needed by mplayer, ipod, not needed by quicktime */
422 avio_wb32(pb, 12); /* size */
423 ffio_wfourcc(pb, "mp4a");
425 mov_write_esds_tag(pb, track);
426 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
427 mov_write_amr_tag(pb, track);
428 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
429 mov_write_ac3_tag(pb, track);
430 } else if (track->par->codec_id == AV_CODEC_ID_ALAC) {
431 mov_write_extradata_tag(pb, track);
432 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
433 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
434 mov_write_ms_tag(s, pb, track);
437 avio_wb32(pb, 8); /* size */
438 avio_wb32(pb, 0); /* null tag */
440 return update_size(pb, pos);
443 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
446 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
447 int unescaped_size, seq_found = 0;
448 int level = 0, interlace = 0;
449 int packet_seq = track->vc1_info.packet_seq;
450 int packet_entry = track->vc1_info.packet_entry;
451 int slices = track->vc1_info.slices;
454 if (track->start_dts == AV_NOPTS_VALUE) {
455 /* No packets written yet, vc1_info isn't authoritative yet. */
456 /* Assume inline sequence and entry headers. */
457 packet_seq = packet_entry = 1;
458 av_log(NULL, AV_LOG_WARNING,
459 "moov atom written before any packets, unable to write correct "
460 "dvc1 atom. Set the delay_moov flag to fix this.\n");
463 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
465 return AVERROR(ENOMEM);
466 start = find_next_marker(track->vos_data, end);
467 for (next = start; next < end; start = next) {
470 next = find_next_marker(start + 4, end);
471 size = next - start - 4;
474 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
475 bitstream_init8(&bc, unescaped, unescaped_size);
476 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
477 int profile = bitstream_read(&bc, 2);
478 if (profile != PROFILE_ADVANCED) {
480 return AVERROR(ENOSYS);
483 level = bitstream_read(&bc, 3);
484 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
486 bitstream_skip(&bc, 2 + 3 + 5 + 1 + 2 * 12);
487 bitstream_skip(&bc, 1); /* broadcast */
488 interlace = bitstream_read_bit(&bc);
489 bitstream_skip(&bc, 4); /* tfcntrflag, finterpflag, reserved, psf */
494 return AVERROR(ENOSYS);
497 init_put_bits(&pbc, buf, 7);
498 /* VC1DecSpecStruc */
499 put_bits(&pbc, 4, 12); /* profile - advanced */
500 put_bits(&pbc, 3, level);
501 put_bits(&pbc, 1, 0); /* reserved */
502 /* VC1AdvDecSpecStruc */
503 put_bits(&pbc, 3, level);
504 put_bits(&pbc, 1, 0); /* cbr */
505 put_bits(&pbc, 6, 0); /* reserved */
506 put_bits(&pbc, 1, !interlace); /* no interlace */
507 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
508 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
509 put_bits(&pbc, 1, !slices); /* no slice code */
510 put_bits(&pbc, 1, 0); /* no bframe */
511 put_bits(&pbc, 1, 0); /* reserved */
514 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
515 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
517 put_bits32(&pbc, 0xffffffff);
519 flush_put_bits(&pbc);
526 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
528 uint8_t buf[7] = { 0 };
531 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
534 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
535 ffio_wfourcc(pb, "dvc1");
536 avio_write(pb, buf, sizeof(buf));
537 avio_write(pb, track->vos_data, track->vos_len);
542 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
544 avio_wb32(pb, track->vos_len + 8);
545 ffio_wfourcc(pb, "glbl");
546 avio_write(pb, track->vos_data, track->vos_len);
547 return 8 + track->vos_len;
551 * Compute flags for 'lpcm' tag.
552 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
554 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
557 case AV_CODEC_ID_PCM_F32BE:
558 case AV_CODEC_ID_PCM_F64BE:
560 case AV_CODEC_ID_PCM_F32LE:
561 case AV_CODEC_ID_PCM_F64LE:
563 case AV_CODEC_ID_PCM_U8:
565 case AV_CODEC_ID_PCM_S16BE:
566 case AV_CODEC_ID_PCM_S24BE:
567 case AV_CODEC_ID_PCM_S32BE:
569 case AV_CODEC_ID_PCM_S8:
570 case AV_CODEC_ID_PCM_S16LE:
571 case AV_CODEC_ID_PCM_S24LE:
572 case AV_CODEC_ID_PCM_S32LE:
579 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
583 if (cluster_idx >= track->entry)
586 if (cluster_idx + 1 == track->entry)
587 next_dts = track->track_duration + track->start_dts;
589 next_dts = track->cluster[cluster_idx + 1].dts;
591 return next_dts - track->cluster[cluster_idx].dts;
594 static int get_samples_per_packet(MOVTrack *track)
596 int i, first_duration;
598 /* use 1 for raw PCM */
599 if (!track->audio_vbr)
602 /* check to see if duration is constant for all clusters */
605 first_duration = get_cluster_duration(track, 0);
606 for (i = 1; i < track->entry; i++) {
607 if (get_cluster_duration(track, i) != first_duration)
610 return first_duration;
613 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
615 int64_t pos = avio_tell(pb);
617 uint32_t tag = track->tag;
619 if (track->mode == MODE_MOV) {
620 if (mov_get_lpcm_flags(track->par->codec_id))
621 tag = AV_RL32("lpcm");
625 avio_wb32(pb, 0); /* size */
626 avio_wl32(pb, tag); // store it byteswapped
627 avio_wb32(pb, 0); /* Reserved */
628 avio_wb16(pb, 0); /* Reserved */
629 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
631 /* SoundDescription */
632 avio_wb16(pb, version); /* Version */
633 avio_wb16(pb, 0); /* Revision level */
634 avio_wb32(pb, 0); /* Reserved */
639 avio_wb16(pb, 0xfffe);
641 avio_wb32(pb, 0x00010000);
643 avio_wb64(pb, av_double2int(track->par->sample_rate));
644 avio_wb32(pb, track->par->channels);
645 avio_wb32(pb, 0x7F000000);
646 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
647 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
648 avio_wb32(pb, track->sample_size);
649 avio_wb32(pb, get_samples_per_packet(track));
651 /* reserved for mp4/3gp */
656 avio_wb16(pb, 0); /* packet size (= 0) */
657 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
658 track->par->sample_rate : 0);
659 avio_wb16(pb, 0); /* Reserved */
662 if (track->mode == MODE_MOV &&
663 (track->par->codec_id == AV_CODEC_ID_AAC ||
664 track->par->codec_id == AV_CODEC_ID_AC3 ||
665 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
666 track->par->codec_id == AV_CODEC_ID_ALAC ||
667 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
668 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
669 mov_write_wave_tag(s, pb, track);
670 else if (track->tag == MKTAG('m','p','4','a'))
671 mov_write_esds_tag(pb, track);
672 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
673 mov_write_amr_tag(pb, track);
674 else if (track->par->codec_id == AV_CODEC_ID_AC3)
675 mov_write_ac3_tag(pb, track);
676 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
677 mov_write_extradata_tag(pb, track);
678 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
679 mov_write_wfex_tag(s, pb, track);
680 else if (track->vos_len > 0)
681 mov_write_glbl_tag(pb, track);
683 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO)
684 mov_write_chan_tag(s, pb, track);
686 return update_size(pb, pos);
689 static int mov_write_d263_tag(AVIOContext *pb)
691 avio_wb32(pb, 0xf); /* size */
692 ffio_wfourcc(pb, "d263");
693 ffio_wfourcc(pb, "FFMP");
694 avio_w8(pb, 0); /* decoder version */
695 /* FIXME use AVCodecContext level/profile, when encoder will set values */
696 avio_w8(pb, 0xa); /* level */
697 avio_w8(pb, 0); /* profile */
701 /* TODO: No idea about these values */
702 static int mov_write_svq3_tag(AVIOContext *pb)
705 ffio_wfourcc(pb, "SMI ");
706 ffio_wfourcc(pb, "SEQH");
708 avio_wb32(pb, 0xe2c0211d);
709 avio_wb32(pb, 0xc0000000);
714 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
716 int64_t pos = avio_tell(pb);
719 ffio_wfourcc(pb, "avcC");
720 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
721 return update_size(pb, pos);
724 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
726 int64_t pos = avio_tell(pb);
729 ffio_wfourcc(pb, "hvcC");
730 if (track->tag == MKTAG('h','v','c','1'))
731 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
733 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
734 return update_size(pb, pos);
737 /* also used by all avid codecs (dv, imx, meridien) and their variants */
738 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
741 avio_wb32(pb, 24); /* size */
742 ffio_wfourcc(pb, "ACLR");
743 ffio_wfourcc(pb, "ACLR");
744 ffio_wfourcc(pb, "0001");
745 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
746 avio_wb32(pb, 0); /* unknown */
748 avio_wb32(pb, 24); /* size */
749 ffio_wfourcc(pb, "APRG");
750 ffio_wfourcc(pb, "APRG");
751 ffio_wfourcc(pb, "0001");
752 avio_wb32(pb, 1); /* unknown */
753 avio_wb32(pb, 0); /* unknown */
755 avio_wb32(pb, 120); /* size */
756 ffio_wfourcc(pb, "ARES");
757 ffio_wfourcc(pb, "ARES");
758 ffio_wfourcc(pb, "0001");
759 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
760 avio_wb32(pb, track->par->width);
761 /* values below are based on samples created with quicktime and avid codecs */
762 if (track->vos_data[5] & 2) { // interlaced
763 avio_wb32(pb, track->par->height / 2);
764 avio_wb32(pb, 2); /* unknown */
765 avio_wb32(pb, 0); /* unknown */
766 avio_wb32(pb, 4); /* unknown */
768 avio_wb32(pb, track->par->height);
769 avio_wb32(pb, 1); /* unknown */
770 avio_wb32(pb, 0); /* unknown */
771 if (track->par->height == 1080)
772 avio_wb32(pb, 5); /* unknown */
774 avio_wb32(pb, 6); /* unknown */
777 for (i = 0; i < 10; i++)
780 /* extra padding for stsd needed */
785 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
789 if (track->par->width == 720) /* SD */
790 if (track->par->height == 480) /* NTSC */
791 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
792 else tag = MKTAG('d','v','c',' ');
793 else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
794 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
795 else tag = MKTAG('d','v','p','p');
796 else if (track->par->height == 720) /* HD 720 line */
797 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
798 else tag = MKTAG('d','v','h','p');
799 else if (track->par->height == 1080) /* HD 1080 line */
800 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
801 else tag = MKTAG('d','v','h','6');
803 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
810 static const struct {
811 enum AVPixelFormat pix_fmt;
814 } mov_pix_fmt_tags[] = {
815 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
816 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
817 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
818 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
819 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
820 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
821 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
822 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
823 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
824 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
825 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
826 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
827 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
828 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
831 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
833 int tag = track->par->codec_tag;
836 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
837 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
838 tag = mov_pix_fmt_tags[i].tag;
839 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
847 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
849 int tag = track->par->codec_tag;
851 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
852 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
853 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
854 track->par->codec_id == AV_CODEC_ID_H263 ||
855 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
856 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
857 tag = mov_get_dv_codec_tag(s, track);
858 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
859 tag = mov_get_rawvideo_codec_tag(s, track);
860 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
861 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
862 if (!tag) { // if no mac fcc found, try with Microsoft tags
863 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
865 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
866 "the file may be unplayable!\n");
868 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
869 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
870 if (!tag) { // if no mac fcc found, try with Microsoft tags
871 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
873 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
874 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
875 "the file may be unplayable!\n");
878 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
879 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
885 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
889 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
890 tag = track->par->codec_tag;
891 else if (track->mode == MODE_ISM)
892 tag = track->par->codec_tag;
893 else if (track->mode == MODE_IPOD) {
894 if (!av_match_ext(s->filename, "m4a") &&
895 !av_match_ext(s->filename, "m4v"))
896 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
897 "Quicktime/Ipod might not play the file\n");
898 tag = track->par->codec_tag;
899 } else if (track->mode & MODE_3GP)
900 tag = track->par->codec_tag;
901 else if (track->mode == MODE_F4V)
902 tag = track->par->codec_tag;
904 tag = mov_get_codec_tag(s, track);
910 * Needed to make file play in iPods running newest firmware
911 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
913 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
916 ffio_wfourcc(pb, "uuid");
917 avio_wb32(pb, 0x6b6840f2);
918 avio_wb32(pb, 0x5f244fc5);
919 avio_wb32(pb, 0xba39a51b);
920 avio_wb32(pb, 0xcf0323f3);
925 static const uint16_t fiel_data[] = {
926 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
929 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
931 unsigned mov_field_order = 0;
932 if (track->par->field_order < FF_ARRAY_ELEMS(fiel_data))
933 mov_field_order = fiel_data[track->par->field_order];
937 ffio_wfourcc(pb, "fiel");
938 avio_wb16(pb, mov_field_order);
942 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
944 int64_t pos = avio_tell(pb);
945 avio_wb32(pb, 0); /* size */
946 avio_wl32(pb, track->tag); // store it byteswapped
947 avio_wb32(pb, 0); /* Reserved */
948 avio_wb16(pb, 0); /* Reserved */
949 avio_wb16(pb, 1); /* Data-reference index */
951 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
952 mov_write_esds_tag(pb, track);
953 else if (track->par->extradata_size)
954 avio_write(pb, track->par->extradata, track->par->extradata_size);
956 return update_size(pb, pos);
959 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
962 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
963 track->par->sample_aspect_ratio.den, INT_MAX);
966 ffio_wfourcc(pb, "pasp");
967 avio_wb32(pb, sar.num);
968 avio_wb32(pb, sar.den);
972 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
974 AVDictionaryEntry *encoder;
975 int64_t pos = avio_tell(pb);
976 char compressor_name[32] = { 0 };
978 avio_wb32(pb, 0); /* size */
979 avio_wl32(pb, track->tag); // store it byteswapped
980 avio_wb32(pb, 0); /* Reserved */
981 avio_wb16(pb, 0); /* Reserved */
982 avio_wb16(pb, 1); /* Data-reference index */
984 avio_wb16(pb, 0); /* Codec stream version */
985 avio_wb16(pb, 0); /* Codec stream revision (=0) */
986 if (track->mode == MODE_MOV) {
987 ffio_wfourcc(pb, "FFMP"); /* Vendor */
988 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) {
989 avio_wb32(pb, 0); /* Temporal Quality */
990 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
992 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
993 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
996 avio_wb32(pb, 0); /* Reserved */
997 avio_wb32(pb, 0); /* Reserved */
998 avio_wb32(pb, 0); /* Reserved */
1000 avio_wb16(pb, track->par->width); /* Video width */
1001 avio_wb16(pb, track->height); /* Video height */
1002 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1003 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1004 avio_wb32(pb, 0); /* Data size (= 0) */
1005 avio_wb16(pb, 1); /* Frame count (= 1) */
1007 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1008 if (track->mode == MODE_MOV &&
1009 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1010 av_strlcpy(compressor_name, encoder->value, 32);
1011 avio_w8(pb, strlen(compressor_name));
1012 avio_write(pb, compressor_name, 31);
1014 if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
1015 avio_wb16(pb, track->par->bits_per_coded_sample);
1017 avio_wb16(pb, 0x18); /* Reserved */
1018 avio_wb16(pb, 0xffff); /* Reserved */
1019 if (track->tag == MKTAG('m','p','4','v'))
1020 mov_write_esds_tag(pb, track);
1021 else if (track->par->codec_id == AV_CODEC_ID_H263)
1022 mov_write_d263_tag(pb);
1023 else if (track->par->codec_id == AV_CODEC_ID_SVQ3)
1024 mov_write_svq3_tag(pb);
1025 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1026 mov_write_avid_tag(pb, track);
1027 else if (track->par->codec_id == AV_CODEC_ID_HEVC)
1028 mov_write_hvcc_tag(pb, track);
1029 else if (track->par->codec_id == AV_CODEC_ID_H264) {
1030 mov_write_avcc_tag(pb, track);
1031 if (track->mode == MODE_IPOD)
1032 mov_write_uuid_tag_ipod(pb);
1033 } else if (track->par->field_order != AV_FIELD_UNKNOWN)
1034 mov_write_fiel_tag(pb, track);
1035 else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1036 mov_write_dvc1_tag(pb, track);
1037 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
1038 track->par->codec_id == AV_CODEC_ID_VP6A) {
1039 /* Don't write any potential extradata here - the cropping
1040 * is signalled via the normal width/height fields. */
1041 } else if (track->vos_len > 0)
1042 mov_write_glbl_tag(pb, track);
1044 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num &&
1045 track->par->sample_aspect_ratio.den != track->par->sample_aspect_ratio.num) {
1046 mov_write_pasp_tag(pb, track);
1049 return update_size(pb, pos);
1052 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1054 int64_t pos = avio_tell(pb);
1055 avio_wb32(pb, 0); /* size */
1056 ffio_wfourcc(pb, "rtp ");
1057 avio_wb32(pb, 0); /* Reserved */
1058 avio_wb16(pb, 0); /* Reserved */
1059 avio_wb16(pb, 1); /* Data-reference index */
1061 avio_wb16(pb, 1); /* Hint track version */
1062 avio_wb16(pb, 1); /* Highest compatible version */
1063 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1065 avio_wb32(pb, 12); /* size */
1066 ffio_wfourcc(pb, "tims");
1067 avio_wb32(pb, track->timescale);
1069 return update_size(pb, pos);
1072 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1074 int64_t pos = avio_tell(pb);
1076 avio_wb32(pb, 0); /* size */
1077 ffio_wfourcc(pb, "tmcd"); /* Data format */
1078 avio_wb32(pb, 0); /* Reserved */
1079 avio_wb32(pb, 1); /* Data reference index */
1080 if (track->par->extradata_size)
1081 avio_write(pb, track->par->extradata, track->par->extradata_size);
1082 return update_size(pb, pos);
1085 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1087 int64_t pos = avio_tell(pb);
1088 avio_wb32(pb, 0); /* size */
1089 ffio_wfourcc(pb, "stsd");
1090 avio_wb32(pb, 0); /* version & flags */
1091 avio_wb32(pb, 1); /* entry count */
1092 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1093 mov_write_video_tag(pb, track);
1094 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1095 mov_write_audio_tag(s, pb, track);
1096 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1097 mov_write_subtitle_tag(pb, track);
1098 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
1099 mov_write_rtp_tag(pb, track);
1100 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
1101 mov_write_tmcd_tag(pb, track);
1102 return update_size(pb, pos);
1105 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1107 MOVMuxContext *mov = s->priv_data;
1108 MOVStts *ctts_entries;
1109 uint32_t entries = 0;
1113 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1115 return AVERROR(ENOMEM);
1116 ctts_entries[0].count = 1;
1117 ctts_entries[0].duration = track->cluster[0].cts;
1118 for (i = 1; i < track->entry; i++) {
1119 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1120 ctts_entries[entries].count++; /* compress */
1123 ctts_entries[entries].duration = track->cluster[i].cts;
1124 ctts_entries[entries].count = 1;
1127 entries++; /* last one */
1128 atom_size = 16 + (entries * 8);
1129 avio_wb32(pb, atom_size); /* size */
1130 ffio_wfourcc(pb, "ctts");
1131 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
1132 avio_w8(pb, 1); /* version */
1134 avio_w8(pb, 0); /* version */
1135 avio_wb24(pb, 0); /* flags */
1136 avio_wb32(pb, entries); /* entry count */
1137 for (i = 0; i < entries; i++) {
1138 avio_wb32(pb, ctts_entries[i].count);
1139 avio_wb32(pb, ctts_entries[i].duration);
1141 av_free(ctts_entries);
1145 /* Time to sample atom */
1146 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1148 MOVStts *stts_entries = NULL;
1149 uint32_t entries = -1;
1153 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1154 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1156 return AVERROR(ENOMEM);
1157 stts_entries[0].count = track->sample_count;
1158 stts_entries[0].duration = 1;
1162 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
1164 return AVERROR(ENOMEM);
1166 for (i = 0; i < track->entry; i++) {
1167 int duration = get_cluster_duration(track, i);
1168 if (i && duration == stts_entries[entries].duration) {
1169 stts_entries[entries].count++; /* compress */
1172 stts_entries[entries].duration = duration;
1173 stts_entries[entries].count = 1;
1176 entries++; /* last one */
1178 atom_size = 16 + (entries * 8);
1179 avio_wb32(pb, atom_size); /* size */
1180 ffio_wfourcc(pb, "stts");
1181 avio_wb32(pb, 0); /* version & flags */
1182 avio_wb32(pb, entries); /* entry count */
1183 for (i = 0; i < entries; i++) {
1184 avio_wb32(pb, stts_entries[i].count);
1185 avio_wb32(pb, stts_entries[i].duration);
1187 av_free(stts_entries);
1191 static int mov_write_dref_tag(AVIOContext *pb)
1193 avio_wb32(pb, 28); /* size */
1194 ffio_wfourcc(pb, "dref");
1195 avio_wb32(pb, 0); /* version & flags */
1196 avio_wb32(pb, 1); /* entry count */
1198 avio_wb32(pb, 0xc); /* size */
1199 ffio_wfourcc(pb, "url ");
1200 avio_wb32(pb, 1); /* version & flags */
1205 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1207 int64_t pos = avio_tell(pb);
1208 avio_wb32(pb, 0); /* size */
1209 ffio_wfourcc(pb, "stbl");
1210 mov_write_stsd_tag(s, pb, track);
1211 mov_write_stts_tag(pb, track);
1212 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1213 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
1214 track->has_keyframes && track->has_keyframes < track->entry)
1215 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1216 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1217 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1218 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
1219 track->flags & MOV_TRACK_CTTS && track->entry)
1220 mov_write_ctts_tag(s, pb, track);
1221 mov_write_stsc_tag(pb, track);
1222 mov_write_stsz_tag(pb, track);
1223 mov_write_stco_tag(pb, track);
1224 return update_size(pb, pos);
1227 static int mov_write_dinf_tag(AVIOContext *pb)
1229 int64_t pos = avio_tell(pb);
1230 avio_wb32(pb, 0); /* size */
1231 ffio_wfourcc(pb, "dinf");
1232 mov_write_dref_tag(pb);
1233 return update_size(pb, pos);
1236 static int mov_write_nmhd_tag(AVIOContext *pb)
1239 ffio_wfourcc(pb, "nmhd");
1244 static int mov_write_gmhd_tag(AVIOContext *pb)
1246 avio_wb32(pb, 0x20); /* size */
1247 ffio_wfourcc(pb, "gmhd");
1248 avio_wb32(pb, 0x18); /* gmin size */
1249 ffio_wfourcc(pb, "gmin");/* generic media info */
1250 avio_wb32(pb, 0); /* version & flags */
1251 avio_wb16(pb, 0x40); /* graphics mode = */
1252 avio_wb16(pb, 0x8000); /* opColor (r?) */
1253 avio_wb16(pb, 0x8000); /* opColor (g?) */
1254 avio_wb16(pb, 0x8000); /* opColor (b?) */
1255 avio_wb16(pb, 0); /* balance */
1256 avio_wb16(pb, 0); /* reserved */
1260 static int mov_write_smhd_tag(AVIOContext *pb)
1262 avio_wb32(pb, 16); /* size */
1263 ffio_wfourcc(pb, "smhd");
1264 avio_wb32(pb, 0); /* version & flags */
1265 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1266 avio_wb16(pb, 0); /* reserved */
1270 static int mov_write_vmhd_tag(AVIOContext *pb)
1272 avio_wb32(pb, 0x14); /* size (always 0x14) */
1273 ffio_wfourcc(pb, "vmhd");
1274 avio_wb32(pb, 0x01); /* version & flags */
1275 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1279 static int is_clcp_track(MOVTrack *track)
1281 return track->tag == MKTAG('c','7','0','8') ||
1282 track->tag == MKTAG('c','6','0','8');
1285 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1287 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1288 int64_t pos = avio_tell(pb);
1292 descr = "DataHandler";
1295 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1296 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1298 descr = "VideoHandler";
1299 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1301 descr = "SoundHandler";
1302 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1303 if (track->tag == MKTAG('t','x','3','g')) {
1305 } else if (track->tag == MKTAG('m','p','4','s')) {
1307 } else if (is_clcp_track(track)) {
1312 descr = "SubtitleHandler";
1313 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
1315 descr = "HintHandler";
1316 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
1318 descr = "TimeCodeHandler";
1321 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1322 track->par->codec_tag);
1324 av_log(s, AV_LOG_WARNING,
1325 "Unknown hldr_type for %s / 0x%04"PRIX32", writing dummy values\n",
1326 tag_buf, track->par->codec_tag);
1329 // hdlr.name is used by some players to identify the content title
1330 // of the track. So if an alternate handler description is
1331 // specified, use it.
1332 AVDictionaryEntry *t;
1333 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1334 if (t && utf8len(t->value))
1339 avio_wb32(pb, 0); /* size */
1340 ffio_wfourcc(pb, "hdlr");
1341 avio_wb32(pb, 0); /* Version & flags */
1342 avio_write(pb, hdlr, 4); /* handler */
1343 ffio_wfourcc(pb, hdlr_type); /* handler type */
1344 avio_wb32(pb, 0); /* reserved */
1345 avio_wb32(pb, 0); /* reserved */
1346 avio_wb32(pb, 0); /* reserved */
1347 if (!track || track->mode == MODE_MOV)
1348 avio_w8(pb, strlen(descr)); /* pascal string */
1349 avio_write(pb, descr, strlen(descr)); /* handler description */
1350 if (track && track->mode != MODE_MOV)
1351 avio_w8(pb, 0); /* c string */
1352 return update_size(pb, pos);
1355 static int mov_write_hmhd_tag(AVIOContext *pb)
1357 /* This atom must be present, but leaving the values at zero
1358 * seems harmless. */
1359 avio_wb32(pb, 28); /* size */
1360 ffio_wfourcc(pb, "hmhd");
1361 avio_wb32(pb, 0); /* version, flags */
1362 avio_wb16(pb, 0); /* maxPDUsize */
1363 avio_wb16(pb, 0); /* avgPDUsize */
1364 avio_wb32(pb, 0); /* maxbitrate */
1365 avio_wb32(pb, 0); /* avgbitrate */
1366 avio_wb32(pb, 0); /* reserved */
1370 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1372 int64_t pos = avio_tell(pb);
1373 avio_wb32(pb, 0); /* size */
1374 ffio_wfourcc(pb, "minf");
1375 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
1376 mov_write_vmhd_tag(pb);
1377 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1378 mov_write_smhd_tag(pb);
1379 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1380 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1381 mov_write_gmhd_tag(pb);
1383 mov_write_nmhd_tag(pb);
1385 } else if (track->tag == MKTAG('r','t','p',' ')) {
1386 mov_write_hmhd_tag(pb);
1387 } else if (track->tag == MKTAG('t','m','c','d')) {
1388 mov_write_gmhd_tag(pb);
1390 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1391 mov_write_hdlr_tag(s, pb, NULL);
1392 mov_write_dinf_tag(pb);
1393 mov_write_stbl_tag(s, pb, track);
1394 return update_size(pb, pos);
1397 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1400 int version = track->track_duration < INT32_MAX ? 0 : 1;
1402 if (track->mode == MODE_ISM)
1405 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1406 ffio_wfourcc(pb, "mdhd");
1407 avio_w8(pb, version);
1408 avio_wb24(pb, 0); /* flags */
1410 avio_wb64(pb, track->time);
1411 avio_wb64(pb, track->time);
1413 avio_wb32(pb, track->time); /* creation time */
1414 avio_wb32(pb, track->time); /* modification time */
1416 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1417 if (!track->entry && mov->mode == MODE_ISM)
1418 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1419 else if (!track->entry)
1420 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1422 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1423 avio_wb16(pb, track->language); /* language */
1424 avio_wb16(pb, 0); /* reserved (quality) */
1426 if (version != 0 && track->mode == MODE_MOV) {
1427 av_log(NULL, AV_LOG_ERROR,
1428 "FATAL error, file duration too long for timebase, this file will not be\n"
1429 "playable with quicktime. Choose a different timebase or a different\n"
1430 "container format\n");
1436 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
1437 MOVMuxContext *mov, MOVTrack *track)
1439 int64_t pos = avio_tell(pb);
1440 avio_wb32(pb, 0); /* size */
1441 ffio_wfourcc(pb, "mdia");
1442 mov_write_mdhd_tag(pb, mov, track);
1443 mov_write_hdlr_tag(s, pb, track);
1444 mov_write_minf_tag(s, pb, track);
1445 return update_size(pb, pos);
1448 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1449 MOVTrack *track, AVStream *st)
1451 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1452 track->timescale, AV_ROUND_UP);
1453 int version = duration < INT32_MAX ? 0 : 1;
1454 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1457 uint32_t *display_matrix = NULL;
1458 int display_matrix_size, i;
1461 if (mov->per_stream_grouping)
1464 group = st->codecpar->codec_type;
1466 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
1467 &display_matrix_size);
1468 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
1469 display_matrix = NULL;
1472 if (track->flags & MOV_TRACK_ENABLED)
1473 flags |= MOV_TKHD_FLAG_ENABLED;
1475 if (track->mode == MODE_ISM)
1478 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1479 ffio_wfourcc(pb, "tkhd");
1480 avio_w8(pb, version);
1481 avio_wb24(pb, flags);
1483 avio_wb64(pb, track->time);
1484 avio_wb64(pb, track->time);
1486 avio_wb32(pb, track->time); /* creation time */
1487 avio_wb32(pb, track->time); /* modification time */
1489 avio_wb32(pb, track->track_id); /* track-id */
1490 avio_wb32(pb, 0); /* reserved */
1491 if (!track->entry && mov->mode == MODE_ISM)
1492 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1493 else if (!track->entry)
1494 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
1496 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1498 avio_wb32(pb, 0); /* reserved */
1499 avio_wb32(pb, 0); /* reserved */
1500 avio_wb16(pb, 0); /* layer */
1501 avio_wb16(pb, group); /* alternate group) */
1502 /* Volume, only for audio */
1503 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
1504 avio_wb16(pb, 0x0100);
1507 avio_wb16(pb, 0); /* reserved */
1509 /* Matrix structure */
1510 if (display_matrix) {
1511 for (i = 0; i < 9; i++)
1512 avio_wb32(pb, display_matrix[i]);
1514 avio_wb32(pb, 0x00010000); /* reserved */
1515 avio_wb32(pb, 0x0); /* reserved */
1516 avio_wb32(pb, 0x0); /* reserved */
1517 avio_wb32(pb, 0x0); /* reserved */
1518 avio_wb32(pb, 0x00010000); /* reserved */
1519 avio_wb32(pb, 0x0); /* reserved */
1520 avio_wb32(pb, 0x0); /* reserved */
1521 avio_wb32(pb, 0x0); /* reserved */
1522 avio_wb32(pb, 0x40000000); /* reserved */
1525 /* Track width and height, for visual only */
1526 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
1527 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1528 if (track->mode == MODE_MOV) {
1529 avio_wb32(pb, track->par->width << 16);
1530 avio_wb32(pb, track->height << 16);
1532 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1533 if (!sample_aspect_ratio || track->height != track->par->height)
1534 sample_aspect_ratio = 1;
1535 avio_wb32(pb, sample_aspect_ratio * track->par->width * 0x10000);
1536 avio_wb32(pb, track->height * 0x10000);
1545 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1547 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
1548 track->par->sample_aspect_ratio.den);
1550 int64_t pos = avio_tell(pb);
1552 avio_wb32(pb, 0); /* size */
1553 ffio_wfourcc(pb, "tapt");
1556 ffio_wfourcc(pb, "clef");
1558 avio_wb32(pb, width << 16);
1559 avio_wb32(pb, track->par->height << 16);
1562 ffio_wfourcc(pb, "prof");
1564 avio_wb32(pb, width << 16);
1565 avio_wb32(pb, track->par->height << 16);
1568 ffio_wfourcc(pb, "enof");
1570 avio_wb32(pb, track->par->width << 16);
1571 avio_wb32(pb, track->par->height << 16);
1573 return update_size(pb, pos);
1576 // This box seems important for the psp playback ... without it the movie seems to hang
1577 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1580 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1581 track->timescale, AV_ROUND_UP);
1582 int version = duration < INT32_MAX ? 0 : 1;
1583 int entry_size, entry_count, size;
1584 int64_t delay, start_ct = track->start_cts;
1585 delay = av_rescale_rnd(track->start_dts + start_ct, MOV_TIMESCALE,
1586 track->timescale, AV_ROUND_DOWN);
1587 version |= delay < INT32_MAX ? 0 : 1;
1589 entry_size = (version == 1) ? 20 : 12;
1590 entry_count = 1 + (delay > 0);
1591 size = 24 + entry_count * entry_size;
1593 /* write the atom data */
1594 avio_wb32(pb, size);
1595 ffio_wfourcc(pb, "edts");
1596 avio_wb32(pb, size - 8);
1597 ffio_wfourcc(pb, "elst");
1598 avio_w8(pb, version);
1599 avio_wb24(pb, 0); /* flags */
1601 avio_wb32(pb, entry_count);
1602 if (delay > 0) { /* add an empty edit to delay presentation */
1603 /* In the positive delay case, the delay includes the cts
1604 * offset, and the second edit list entry below trims out
1605 * the same amount from the actual content. This makes sure
1606 * that the offset last sample is included in the edit
1607 * list duration as well. */
1609 avio_wb64(pb, delay);
1612 avio_wb32(pb, delay);
1615 avio_wb32(pb, 0x00010000);
1617 /* Avoid accidentally ending up with start_ct = -1 which has got a
1618 * special meaning. Normally start_ct should end up positive or zero
1619 * here, but use FFMIN in case dts is a a small positive integer
1620 * rounded to 0 when represented in MOV_TIMESCALE units. */
1621 start_ct = -FFMIN(track->start_dts, 0);
1622 /* Note, this delay is calculated from the pts of the first sample,
1623 * ensuring that we don't reduce the duration for cases with
1628 /* For fragmented files, we don't know the full length yet. Setting
1629 * duration to 0 allows us to only specify the offset, including
1630 * the rest of the content (from all future fragments) without specifying
1631 * an explicit duration. */
1632 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1637 avio_wb64(pb, duration);
1638 avio_wb64(pb, start_ct);
1640 avio_wb32(pb, duration);
1641 avio_wb32(pb, start_ct);
1643 avio_wb32(pb, 0x00010000);
1647 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1649 avio_wb32(pb, 20); // size
1650 ffio_wfourcc(pb, "tref");
1651 avio_wb32(pb, 12); // size (subatom)
1652 avio_wl32(pb, track->tref_tag);
1653 avio_wb32(pb, track->tref_id);
1657 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1658 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1660 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1661 ffio_wfourcc(pb, "uuid");
1662 ffio_wfourcc(pb, "USMT");
1663 avio_wb32(pb, 0x21d24fce);
1664 avio_wb32(pb, 0xbb88695c);
1665 avio_wb32(pb, 0xfac9c740);
1666 avio_wb32(pb, 0x1c); // another size here!
1667 ffio_wfourcc(pb, "MTDT");
1668 avio_wb32(pb, 0x00010012);
1669 avio_wb32(pb, 0x0a);
1670 avio_wb32(pb, 0x55c40000);
1676 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1678 AVFormatContext *ctx = track->rtp_ctx;
1679 char buf[1000] = "";
1682 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1683 NULL, NULL, 0, 0, ctx);
1684 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1687 avio_wb32(pb, len + 24);
1688 ffio_wfourcc(pb, "udta");
1689 avio_wb32(pb, len + 16);
1690 ffio_wfourcc(pb, "hnti");
1691 avio_wb32(pb, len + 8);
1692 ffio_wfourcc(pb, "sdp ");
1693 avio_write(pb, buf, len);
1697 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1698 const char *tag, const char *str)
1700 int64_t pos = avio_tell(pb);
1701 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1702 if (!t || !utf8len(t->value))
1705 avio_wb32(pb, 0); /* size */
1706 ffio_wfourcc(pb, tag); /* type */
1707 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1708 return update_size(pb, pos);
1711 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1714 AVIOContext *pb_buf;
1721 ret = avio_open_dyn_buf(&pb_buf);
1725 if (mov->mode & MODE_MP4)
1726 mov_write_track_metadata(pb_buf, st, "name", "title");
1728 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1729 avio_wb32(pb, size + 8);
1730 ffio_wfourcc(pb, "udta");
1731 avio_write(pb, buf, size);
1738 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1739 MOVTrack *track, AVStream *st)
1741 int64_t pos = avio_tell(pb);
1742 int entry_backup = track->entry;
1743 /* If we want to have an empty moov, but some samples already have been
1744 * buffered (delay_moov), pretend that no samples have been written yet. */
1745 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
1748 avio_wb32(pb, 0); /* size */
1749 ffio_wfourcc(pb, "trak");
1750 mov_write_tkhd_tag(pb, mov, track, st);
1751 if (track->start_dts != AV_NOPTS_VALUE &&
1752 (track->mode == MODE_PSP || track->start_dts || is_clcp_track(track))) {
1753 if (mov->use_editlist)
1754 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1755 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
1756 av_log(mov->fc, AV_LOG_WARNING,
1757 "Not writing any edit list even though one would have been required\n");
1759 if (track->tref_tag)
1760 mov_write_tref_tag(pb, track);
1761 mov_write_mdia_tag(mov->fc, pb, mov, track);
1762 if (track->mode == MODE_PSP)
1763 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1764 if (track->tag == MKTAG('r','t','p',' '))
1765 mov_write_udta_sdp(pb, track);
1766 if (track->mode == MODE_MOV) {
1767 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1768 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1769 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1770 mov_write_tapt_tag(pb, track);
1773 if (is_clcp_track(track)) {
1774 mov_write_tapt_tag(pb, track);
1777 mov_write_track_udta_tag(pb, mov, st);
1778 track->entry = entry_backup;
1779 return update_size(pb, pos);
1782 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1784 int i, has_audio = 0, has_video = 0;
1785 int64_t pos = avio_tell(pb);
1786 int audio_profile = mov->iods_audio_profile;
1787 int video_profile = mov->iods_video_profile;
1788 for (i = 0; i < mov->nb_streams; i++) {
1789 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1790 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
1791 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
1794 if (audio_profile < 0)
1795 audio_profile = 0xFF - has_audio;
1796 if (video_profile < 0)
1797 video_profile = 0xFF - has_video;
1798 avio_wb32(pb, 0x0); /* size */
1799 ffio_wfourcc(pb, "iods");
1800 avio_wb32(pb, 0); /* version & flags */
1801 put_descr(pb, 0x10, 7);
1802 avio_wb16(pb, 0x004f);
1805 avio_w8(pb, audio_profile);
1806 avio_w8(pb, video_profile);
1808 return update_size(pb, pos);
1811 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1813 avio_wb32(pb, 0x20); /* size */
1814 ffio_wfourcc(pb, "trex");
1815 avio_wb32(pb, 0); /* version & flags */
1816 avio_wb32(pb, track->track_id); /* track ID */
1817 avio_wb32(pb, 1); /* default sample description index */
1818 avio_wb32(pb, 0); /* default sample duration */
1819 avio_wb32(pb, 0); /* default sample size */
1820 avio_wb32(pb, 0); /* default sample flags */
1824 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1826 int64_t pos = avio_tell(pb);
1828 avio_wb32(pb, 0x0); /* size */
1829 ffio_wfourcc(pb, "mvex");
1830 for (i = 0; i < mov->nb_streams; i++)
1831 mov_write_trex_tag(pb, &mov->tracks[i]);
1832 return update_size(pb, pos);
1835 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1837 int max_track_id = 1, i;
1838 int64_t max_track_len_temp, max_track_len = 0;
1841 for (i = 0; i < mov->nb_streams; i++) {
1842 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1843 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1845 mov->tracks[i].timescale,
1847 if (max_track_len < max_track_len_temp)
1848 max_track_len = max_track_len_temp;
1849 if (max_track_id < mov->tracks[i].track_id)
1850 max_track_id = mov->tracks[i].track_id;
1853 /* If using delay_moov, make sure the output is the same as if no
1854 * samples had been written yet. */
1855 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
1860 version = max_track_len < UINT32_MAX ? 0 : 1;
1861 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1862 ffio_wfourcc(pb, "mvhd");
1863 avio_w8(pb, version);
1864 avio_wb24(pb, 0); /* flags */
1866 avio_wb64(pb, mov->time);
1867 avio_wb64(pb, mov->time);
1869 avio_wb32(pb, mov->time); /* creation time */
1870 avio_wb32(pb, mov->time); /* modification time */
1872 avio_wb32(pb, MOV_TIMESCALE);
1873 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1875 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1876 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1877 avio_wb16(pb, 0); /* reserved */
1878 avio_wb32(pb, 0); /* reserved */
1879 avio_wb32(pb, 0); /* reserved */
1881 /* Matrix structure */
1882 avio_wb32(pb, 0x00010000); /* reserved */
1883 avio_wb32(pb, 0x0); /* reserved */
1884 avio_wb32(pb, 0x0); /* reserved */
1885 avio_wb32(pb, 0x0); /* reserved */
1886 avio_wb32(pb, 0x00010000); /* reserved */
1887 avio_wb32(pb, 0x0); /* reserved */
1888 avio_wb32(pb, 0x0); /* reserved */
1889 avio_wb32(pb, 0x0); /* reserved */
1890 avio_wb32(pb, 0x40000000); /* reserved */
1892 avio_wb32(pb, 0); /* reserved (preview time) */
1893 avio_wb32(pb, 0); /* reserved (preview duration) */
1894 avio_wb32(pb, 0); /* reserved (poster time) */
1895 avio_wb32(pb, 0); /* reserved (selection time) */
1896 avio_wb32(pb, 0); /* reserved (selection duration) */
1897 avio_wb32(pb, 0); /* reserved (current time) */
1898 avio_wb32(pb, max_track_id + 1); /* Next track id */
1902 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1905 avio_wb32(pb, 33); /* size */
1906 ffio_wfourcc(pb, "hdlr");
1909 ffio_wfourcc(pb, "mdir");
1910 ffio_wfourcc(pb, "appl");
1917 /* helper function to write a data tag with the specified string as data */
1918 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1921 int size = 16 + strlen(data);
1922 avio_wb32(pb, size); /* size */
1923 ffio_wfourcc(pb, "data");
1926 avio_write(pb, data, strlen(data));
1930 lang = ff_mov_iso639_to_lang("und", 1);
1931 avio_wb16(pb, strlen(data)); /* string length */
1932 avio_wb16(pb, lang);
1933 avio_write(pb, data, strlen(data));
1934 return strlen(data) + 4;
1938 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1939 const char *value, int lang, int long_style)
1942 if (value && value[0]) {
1943 int64_t pos = avio_tell(pb);
1944 avio_wb32(pb, 0); /* size */
1945 ffio_wfourcc(pb, name);
1946 mov_write_string_data_tag(pb, value, lang, long_style);
1947 size = update_size(pb, pos);
1952 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
1953 const char *tag, int *lang)
1956 AVDictionaryEntry *t, *t2 = NULL;
1961 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1964 len = strlen(t->key);
1965 snprintf(tag2, sizeof(tag2), "%s-", tag);
1966 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1967 len2 = strlen(t2->key);
1968 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1969 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1977 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1978 const char *name, const char *tag,
1982 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
1985 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1988 /* 3GPP TS 26.244 */
1989 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
1992 int64_t pos = avio_tell(pb);
1993 double latitude, longitude, altitude;
1994 int32_t latitude_fix, longitude_fix, altitude_fix;
1995 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
1996 const char *ptr, *place = "";
1998 const char *astronomical_body = "earth";
2003 longitude = strtod(ptr, &end);
2005 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2009 latitude = strtod(ptr, &end);
2011 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
2015 altitude = strtod(ptr, &end);
2016 /* If no altitude was present, the default 0 should be fine */
2020 latitude_fix = (int32_t) ((1 << 16) * latitude);
2021 longitude_fix = (int32_t) ((1 << 16) * longitude);
2022 altitude_fix = (int32_t) ((1 << 16) * altitude);
2024 avio_wb32(pb, 0); /* size */
2025 ffio_wfourcc(pb, "loci"); /* type */
2026 avio_wb32(pb, 0); /* version + flags */
2027 avio_wb16(pb, lang);
2028 avio_write(pb, place, strlen(place) + 1);
2029 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
2030 avio_wb32(pb, latitude_fix);
2031 avio_wb32(pb, longitude_fix);
2032 avio_wb32(pb, altitude_fix);
2033 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
2034 avio_w8(pb, 0); /* additional notes, null terminated string */
2036 return update_size(pb, pos);
2039 /* iTunes track number */
2040 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
2043 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
2044 int size = 0, track = t ? atoi(t->value) : 0;
2046 avio_wb32(pb, 32); /* size */
2047 ffio_wfourcc(pb, "trkn");
2048 avio_wb32(pb, 24); /* size */
2049 ffio_wfourcc(pb, "data");
2050 avio_wb32(pb, 0); // 8 bytes empty
2052 avio_wb16(pb, 0); // empty
2053 avio_wb16(pb, track); // track number
2054 avio_wb16(pb, 0); // total track number
2055 avio_wb16(pb, 0); // empty
2061 /* iTunes meta data list */
2062 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2065 int64_t pos = avio_tell(pb);
2066 avio_wb32(pb, 0); /* size */
2067 ffio_wfourcc(pb, "ilst");
2068 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2069 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2070 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2071 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2072 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2073 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2074 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
2075 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2076 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2078 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2079 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2080 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2081 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2082 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2083 mov_write_string_metadata(s, pb, "desc", "description",1);
2084 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2085 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2086 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2087 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2088 mov_write_trkn_tag(pb, mov, s);
2089 return update_size(pb, pos);
2092 /* iTunes meta data tag */
2093 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2097 int64_t pos = avio_tell(pb);
2098 avio_wb32(pb, 0); /* size */
2099 ffio_wfourcc(pb, "meta");
2101 mov_write_itunes_hdlr_tag(pb, mov, s);
2102 mov_write_ilst_tag(pb, mov, s);
2103 size = update_size(pb, pos);
2107 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2111 GET_UTF8(val, *b++, return -1;)
2114 avio_wb16(pb, 0x00);
2118 static uint16_t language_code(const char *str)
2120 return (((str[0] - 0x60) & 0x1F) << 10) +
2121 (((str[1] - 0x60) & 0x1F) << 5) +
2122 (( str[2] - 0x60) & 0x1F);
2125 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2126 const char *tag, const char *str)
2128 int64_t pos = avio_tell(pb);
2129 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2130 if (!t || !utf8len(t->value))
2132 avio_wb32(pb, 0); /* size */
2133 ffio_wfourcc(pb, tag); /* type */
2134 avio_wb32(pb, 0); /* version + flags */
2135 if (!strcmp(tag, "yrrc"))
2136 avio_wb16(pb, atoi(t->value));
2138 avio_wb16(pb, language_code("eng")); /* language */
2139 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2140 if (!strcmp(tag, "albm") &&
2141 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2142 avio_w8(pb, atoi(t->value));
2144 return update_size(pb, pos);
2147 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2149 int64_t pos = avio_tell(pb);
2150 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2152 avio_wb32(pb, 0); // size
2153 ffio_wfourcc(pb, "chpl");
2154 avio_wb32(pb, 0x01000000); // version + flags
2155 avio_wb32(pb, 0); // unknown
2156 avio_w8(pb, nb_chapters);
2158 for (i = 0; i < nb_chapters; i++) {
2159 AVChapter *c = s->chapters[i];
2160 AVDictionaryEntry *t;
2161 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2163 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2164 int len = FFMIN(strlen(t->value), 255);
2166 avio_write(pb, t->value, len);
2170 return update_size(pb, pos);
2173 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2176 AVIOContext *pb_buf;
2180 ret = avio_open_dyn_buf(&pb_buf);
2184 if (mov->mode & MODE_3GP) {
2185 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2186 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2187 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2188 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2189 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2190 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2191 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2192 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2193 mov_write_loci_tag(s, pb_buf);
2194 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2195 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2196 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2197 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2198 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2199 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2200 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2201 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2202 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2203 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2204 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2205 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
2206 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
2207 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
2209 /* iTunes meta data */
2210 mov_write_meta_tag(pb_buf, mov, s);
2211 mov_write_loci_tag(s, pb_buf);
2214 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2215 mov_write_chpl_tag(pb_buf, s);
2217 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2218 avio_wb32(pb, size + 8);
2219 ffio_wfourcc(pb, "udta");
2220 avio_write(pb, buf, size);
2227 static void mov_write_psp_udta_tag(AVIOContext *pb,
2228 const char *str, const char *lang, int type)
2230 int len = utf8len(str) + 1;
2233 avio_wb16(pb, len * 2 + 10); /* size */
2234 avio_wb32(pb, type); /* type */
2235 avio_wb16(pb, language_code(lang)); /* language */
2236 avio_wb16(pb, 0x01); /* ? */
2237 ascii_to_wc(pb, str);
2240 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2242 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2246 pos = avio_tell(pb);
2247 avio_wb32(pb, 0); /* size placeholder*/
2248 ffio_wfourcc(pb, "uuid");
2249 ffio_wfourcc(pb, "USMT");
2250 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2251 avio_wb32(pb, 0xbb88695c);
2252 avio_wb32(pb, 0xfac9c740);
2254 pos2 = avio_tell(pb);
2255 avio_wb32(pb, 0); /* size placeholder*/
2256 ffio_wfourcc(pb, "MTDT");
2260 avio_wb16(pb, 0x0C); /* size */
2261 avio_wb32(pb, 0x0B); /* type */
2262 avio_wb16(pb, language_code("und")); /* language */
2263 avio_wb16(pb, 0x0); /* ? */
2264 avio_wb16(pb, 0x021C); /* data */
2266 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2267 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2268 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2270 update_size(pb, pos2);
2271 return update_size(pb, pos);
2277 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2281 int64_t pos = avio_tell(pb);
2282 avio_wb32(pb, 0); /* size placeholder*/
2283 ffio_wfourcc(pb, "moov");
2285 for (i = 0; i < mov->nb_streams; i++) {
2286 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2289 mov->tracks[i].time = mov->time;
2290 mov->tracks[i].track_id = i + 1;
2293 if (mov->chapter_track)
2294 for (i = 0; i < s->nb_streams; i++) {
2295 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2296 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2298 for (i = 0; i < mov->nb_streams; i++) {
2299 MOVTrack *track = &mov->tracks[i];
2300 if (track->tag == MKTAG('r','t','p',' ')) {
2301 track->tref_tag = MKTAG('h','i','n','t');
2302 track->tref_id = mov->tracks[track->src_track].track_id;
2303 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2304 int * fallback, size;
2305 fallback = (int*)av_stream_get_side_data(track->st,
2306 AV_PKT_DATA_FALLBACK_TRACK,
2308 if (fallback != NULL && size == sizeof(int)) {
2309 if (*fallback >= 0 && *fallback < mov->nb_streams) {
2310 track->tref_tag = MKTAG('f','a','l','l');
2311 track->tref_id = mov->tracks[*fallback].track_id;
2317 mov_write_mvhd_tag(pb, mov);
2318 if (mov->mode != MODE_MOV && !mov->iods_skip)
2319 mov_write_iods_tag(pb, mov);
2320 for (i = 0; i < mov->nb_streams; i++) {
2321 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2322 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2325 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2326 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2328 if (mov->mode == MODE_PSP)
2329 mov_write_uuidusmt_tag(pb, s);
2331 mov_write_udta_tag(pb, mov, s);
2333 return update_size(pb, pos);
2336 static void param_write_int(AVIOContext *pb, const char *name, int value)
2338 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2341 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2343 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2346 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2349 len = FFMIN(sizeof(buf) / 2 - 1, len);
2350 ff_data_to_hex(buf, value, len, 0);
2351 buf[2 * len] = '\0';
2352 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2355 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2357 int64_t pos = avio_tell(pb);
2359 static const uint8_t uuid[] = {
2360 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2361 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2365 ffio_wfourcc(pb, "uuid");
2366 avio_write(pb, uuid, sizeof(uuid));
2369 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2370 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2371 avio_printf(pb, "<head>\n");
2372 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2374 avio_printf(pb, "</head>\n");
2375 avio_printf(pb, "<body>\n");
2376 avio_printf(pb, "<switch>\n");
2377 for (i = 0; i < mov->nb_streams; i++) {
2378 MOVTrack *track = &mov->tracks[i];
2380 /* track->track_id is initialized in write_moov, and thus isn't known
2382 int track_id = i + 1;
2384 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2386 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2391 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2392 track->par->bit_rate);
2393 param_write_int(pb, "systemBitrate", track->par->bit_rate);
2394 param_write_int(pb, "trackID", track_id);
2395 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2396 if (track->par->codec_id == AV_CODEC_ID_H264) {
2398 int size = track->par->extradata_size;
2399 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
2401 param_write_hex(pb, "CodecPrivateData",
2402 ptr ? ptr : track->par->extradata,
2406 param_write_string(pb, "FourCC", "H264");
2407 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
2408 param_write_string(pb, "FourCC", "WVC1");
2409 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2410 track->par->extradata_size);
2412 param_write_int(pb, "MaxWidth", track->par->width);
2413 param_write_int(pb, "MaxHeight", track->par->height);
2414 param_write_int(pb, "DisplayWidth", track->par->width);
2415 param_write_int(pb, "DisplayHeight", track->par->height);
2417 if (track->par->codec_id == AV_CODEC_ID_AAC) {
2418 param_write_string(pb, "FourCC", "AACL");
2419 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
2420 param_write_string(pb, "FourCC", "WMAP");
2422 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
2423 track->par->extradata_size);
2424 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2425 track->par->codec_id));
2426 param_write_int(pb, "Channels", track->par->channels);
2427 param_write_int(pb, "SamplingRate", track->par->sample_rate);
2428 param_write_int(pb, "BitsPerSample", 16);
2429 param_write_int(pb, "PacketSize", track->par->block_align ?
2430 track->par->block_align : 4);
2432 avio_printf(pb, "</%s>\n", type);
2434 avio_printf(pb, "</switch>\n");
2435 avio_printf(pb, "</body>\n");
2436 avio_printf(pb, "</smil>\n");
2438 return update_size(pb, pos);
2441 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2444 ffio_wfourcc(pb, "mfhd");
2446 avio_wb32(pb, mov->fragments);
2450 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2452 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2453 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2456 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2457 MOVTrack *track, int64_t moof_offset)
2459 int64_t pos = avio_tell(pb);
2460 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2461 MOV_TFHD_BASE_DATA_OFFSET;
2462 if (!track->entry) {
2463 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2465 flags |= MOV_TFHD_DEFAULT_FLAGS;
2467 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2468 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2469 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
2470 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2471 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
2474 /* Don't set a default sample size, the silverlight player refuses
2475 * to play files with that set. Don't set a default sample duration,
2476 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2477 * file format says it MUST NOT be set. */
2478 if (track->mode == MODE_ISM)
2479 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2480 MOV_TFHD_BASE_DATA_OFFSET);
2482 avio_wb32(pb, 0); /* size placeholder */
2483 ffio_wfourcc(pb, "tfhd");
2484 avio_w8(pb, 0); /* version */
2485 avio_wb24(pb, flags);
2487 avio_wb32(pb, track->track_id); /* track-id */
2488 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2489 avio_wb64(pb, moof_offset);
2490 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2491 track->default_duration = get_cluster_duration(track, 0);
2492 avio_wb32(pb, track->default_duration);
2494 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2495 track->default_size = track->entry ? track->cluster[0].size : 1;
2496 avio_wb32(pb, track->default_size);
2498 track->default_size = -1;
2500 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2501 /* Set the default flags based on the second sample, if available.
2502 * If the first sample is different, that can be signaled via a separate field. */
2503 if (track->entry > 1)
2504 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
2506 track->default_sample_flags =
2507 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
2508 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2509 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2510 avio_wb32(pb, track->default_sample_flags);
2513 return update_size(pb, pos);
2516 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2517 MOVTrack *track, int moof_size,
2520 int64_t pos = avio_tell(pb);
2521 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2524 for (i = first; i < end; i++) {
2525 if (get_cluster_duration(track, i) != track->default_duration)
2526 flags |= MOV_TRUN_SAMPLE_DURATION;
2527 if (track->cluster[i].size != track->default_size)
2528 flags |= MOV_TRUN_SAMPLE_SIZE;
2529 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2530 flags |= MOV_TRUN_SAMPLE_FLAGS;
2532 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
2533 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
2534 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2535 if (track->flags & MOV_TRACK_CTTS)
2536 flags |= MOV_TRUN_SAMPLE_CTS;
2538 avio_wb32(pb, 0); /* size placeholder */
2539 ffio_wfourcc(pb, "trun");
2540 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2541 avio_w8(pb, 1); /* version */
2543 avio_w8(pb, 0); /* version */
2544 avio_wb24(pb, flags);
2546 avio_wb32(pb, end - first); /* sample count */
2547 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2548 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
2550 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2552 avio_wb32(pb, moof_size + 8 + track->data_offset +
2553 track->cluster[first].pos); /* data offset */
2554 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2555 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
2557 for (i = first; i < end; i++) {
2558 if (flags & MOV_TRUN_SAMPLE_DURATION)
2559 avio_wb32(pb, get_cluster_duration(track, i));
2560 if (flags & MOV_TRUN_SAMPLE_SIZE)
2561 avio_wb32(pb, track->cluster[i].size);
2562 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2563 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2564 if (flags & MOV_TRUN_SAMPLE_CTS)
2565 avio_wb32(pb, track->cluster[i].cts);
2568 mov->first_trun = 0;
2569 return update_size(pb, pos);
2572 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2574 int64_t pos = avio_tell(pb);
2575 static const uint8_t uuid[] = {
2576 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2577 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2580 avio_wb32(pb, 0); /* size placeholder */
2581 ffio_wfourcc(pb, "uuid");
2582 avio_write(pb, uuid, sizeof(uuid));
2585 avio_wb64(pb, track->start_dts + track->frag_start +
2586 track->cluster[0].cts);
2587 avio_wb64(pb, track->end_pts -
2588 (track->cluster[0].dts + track->cluster[0].cts));
2590 return update_size(pb, pos);
2593 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2594 MOVTrack *track, int entry)
2596 int n = track->nb_frag_info - 1 - entry, i;
2597 int size = 8 + 16 + 4 + 1 + 16*n;
2598 static const uint8_t uuid[] = {
2599 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2600 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2606 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2607 avio_wb32(pb, size);
2608 ffio_wfourcc(pb, "uuid");
2609 avio_write(pb, uuid, sizeof(uuid));
2613 for (i = 0; i < n; i++) {
2614 int index = entry + 1 + i;
2615 avio_wb64(pb, track->frag_info[index].time);
2616 avio_wb64(pb, track->frag_info[index].duration);
2618 if (n < mov->ism_lookahead) {
2619 int free_size = 16 * (mov->ism_lookahead - n);
2620 avio_wb32(pb, free_size);
2621 ffio_wfourcc(pb, "free");
2622 for (i = 0; i < free_size - 8; i++)
2629 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2632 int64_t pos = avio_tell(pb);
2634 for (i = 0; i < mov->ism_lookahead; i++) {
2635 /* Update the tfrf tag for the last ism_lookahead fragments,
2636 * nb_frag_info - 1 is the next fragment to be written. */
2637 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2639 avio_seek(pb, pos, SEEK_SET);
2643 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2647 for (i = 0; i < mov->nb_streams; i++) {
2648 MOVTrack *track = &mov->tracks[i];
2649 MOVFragmentInfo *info;
2650 if ((tracks >= 0 && i != tracks) || !track->entry)
2652 track->nb_frag_info++;
2653 if (track->nb_frag_info >= track->frag_info_capacity) {
2654 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2655 if (av_reallocp_array(&track->frag_info,
2657 sizeof(*track->frag_info)))
2658 return AVERROR(ENOMEM);
2659 track->frag_info_capacity = new_capacity;
2661 info = &track->frag_info[track->nb_frag_info - 1];
2662 info->offset = avio_tell(pb);
2664 // Try to recreate the original pts for the first packet
2665 // from the fields we have stored
2666 info->time = track->start_dts + track->frag_start +
2667 track->cluster[0].cts;
2668 info->duration = track->end_pts -
2669 (track->cluster[0].dts + track->cluster[0].cts);
2670 // If the pts is less than zero, we will have trimmed
2671 // away parts of the media track using an edit list,
2672 // and the corresponding start presentation time is zero.
2673 if (info->time < 0) {
2674 info->duration += info->time;
2677 info->tfrf_offset = 0;
2678 mov_write_tfrf_tags(pb, mov, track);
2683 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
2686 for (i = 0; i < mov->nb_streams; i++) {
2687 MOVTrack *track = &mov->tracks[i];
2688 if ((tracks >= 0 && i != tracks) || !track->entry)
2690 if (track->nb_frag_info > max) {
2691 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
2692 track->nb_frag_info = max;
2697 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2699 int64_t pos = avio_tell(pb);
2701 avio_wb32(pb, 0); /* size */
2702 ffio_wfourcc(pb, "tfdt");
2703 avio_w8(pb, 1); /* version */
2705 avio_wb64(pb, track->frag_start);
2706 return update_size(pb, pos);
2709 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2710 MOVTrack *track, int64_t moof_offset,
2713 int64_t pos = avio_tell(pb);
2715 avio_wb32(pb, 0); /* size placeholder */
2716 ffio_wfourcc(pb, "traf");
2718 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2719 if (mov->mode != MODE_ISM)
2720 mov_write_tfdt_tag(pb, track);
2721 for (i = 1; i < track->entry; i++) {
2722 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
2723 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
2727 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
2728 if (mov->mode == MODE_ISM) {
2729 mov_write_tfxd_tag(pb, track);
2731 if (mov->ism_lookahead) {
2732 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2734 if (track->nb_frag_info > 0) {
2735 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
2736 if (!info->tfrf_offset)
2737 info->tfrf_offset = avio_tell(pb);
2739 avio_wb32(pb, 8 + size);
2740 ffio_wfourcc(pb, "free");
2741 for (i = 0; i < size; i++)
2746 return update_size(pb, pos);
2749 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2750 int tracks, int moof_size)
2752 int64_t pos = avio_tell(pb);
2755 avio_wb32(pb, 0); /* size placeholder */
2756 ffio_wfourcc(pb, "moof");
2757 mov->first_trun = 1;
2759 mov_write_mfhd_tag(pb, mov);
2760 for (i = 0; i < mov->nb_streams; i++) {
2761 MOVTrack *track = &mov->tracks[i];
2762 if (tracks >= 0 && i != tracks)
2766 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2769 return update_size(pb, pos);
2772 static int mov_write_sidx_tag(AVIOContext *pb,
2773 MOVTrack *track, int ref_size, int total_sidx_size)
2775 int64_t pos = avio_tell(pb), offset_pos, end_pos;
2776 int64_t presentation_time, duration, offset;
2777 int starts_with_SAP, i, entries;
2781 presentation_time = track->start_dts + track->frag_start +
2782 track->cluster[0].cts;
2783 duration = track->end_pts -
2784 (track->cluster[0].dts + track->cluster[0].cts);
2785 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
2787 // pts<0 should be cut away using edts
2788 if (presentation_time < 0) {
2789 duration += presentation_time;
2790 presentation_time = 0;
2793 entries = track->nb_frag_info;
2796 presentation_time = track->frag_info[0].time;
2799 avio_wb32(pb, 0); /* size */
2800 ffio_wfourcc(pb, "sidx");
2801 avio_w8(pb, 1); /* version */
2803 avio_wb32(pb, track->track_id); /* reference_ID */
2804 avio_wb32(pb, track->timescale); /* timescale */
2805 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
2806 offset_pos = avio_tell(pb);
2807 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
2808 avio_wb16(pb, 0); /* reserved */
2810 avio_wb16(pb, entries); /* reference_count */
2811 for (i = 0; i < entries; i++) {
2812 if (!track->entry) {
2813 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
2814 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
2816 duration = track->frag_info[i].duration;
2817 ref_size = track->frag_info[i].size;
2818 starts_with_SAP = 1;
2820 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
2821 avio_wb32(pb, duration); /* subsegment_duration */
2822 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
2825 end_pos = avio_tell(pb);
2826 offset = pos + total_sidx_size - end_pos;
2827 avio_seek(pb, offset_pos, SEEK_SET);
2828 avio_wb64(pb, offset);
2829 avio_seek(pb, end_pos, SEEK_SET);
2830 return update_size(pb, pos);
2833 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
2834 int tracks, int ref_size)
2837 AVIOContext *avio_buf;
2839 for (round = 0; round < 2; round++) {
2840 // First run one round to calculate the total size of all
2842 // This would be much simpler if we'd only write one sidx
2843 // atom, for the first track in the moof.
2845 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2850 for (i = 0; i < mov->nb_streams; i++) {
2851 MOVTrack *track = &mov->tracks[i];
2852 if (tracks >= 0 && i != tracks)
2854 // When writing a sidx for the full file, entry is 0, but
2855 // we want to include all tracks. ref_size is 0 in this case,
2856 // since we read it from frag_info instead.
2857 if (!track->entry && ref_size > 0)
2859 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
2863 total_size = ffio_close_null_buf(avio_buf);
2868 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
2871 AVIOContext *avio_buf;
2874 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2876 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2877 moof_size = ffio_close_null_buf(avio_buf);
2879 if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX))
2880 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
2882 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
2883 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
2884 mov->ism_lookahead) {
2885 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
2887 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
2888 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
2889 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
2893 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2896 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2898 int64_t pos = avio_tell(pb);
2901 avio_wb32(pb, 0); /* size placeholder */
2902 ffio_wfourcc(pb, "tfra");
2903 avio_w8(pb, 1); /* version */
2906 avio_wb32(pb, track->track_id);
2907 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2908 avio_wb32(pb, track->nb_frag_info);
2909 for (i = 0; i < track->nb_frag_info; i++) {
2910 avio_wb64(pb, track->frag_info[i].time);
2911 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
2912 avio_w8(pb, 1); /* traf number */
2913 avio_w8(pb, 1); /* trun number */
2914 avio_w8(pb, 1); /* sample number */
2917 return update_size(pb, pos);
2920 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2922 int64_t pos = avio_tell(pb);
2925 avio_wb32(pb, 0); /* size placeholder */
2926 ffio_wfourcc(pb, "mfra");
2927 /* An empty mfra atom is enough to indicate to the publishing point that
2928 * the stream has ended. */
2929 if (mov->flags & FF_MOV_FLAG_ISML)
2930 return update_size(pb, pos);
2932 for (i = 0; i < mov->nb_streams; i++) {
2933 MOVTrack *track = &mov->tracks[i];
2934 if (track->nb_frag_info)
2935 mov_write_tfra_tag(pb, track);
2939 ffio_wfourcc(pb, "mfro");
2940 avio_wb32(pb, 0); /* version + flags */
2941 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2943 return update_size(pb, pos);
2946 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2948 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2949 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2951 mov->mdat_pos = avio_tell(pb);
2952 avio_wb32(pb, 0); /* size placeholder*/
2953 ffio_wfourcc(pb, "mdat");
2957 /* TODO: This needs to be more general */
2958 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2960 MOVMuxContext *mov = s->priv_data;
2961 int64_t pos = avio_tell(pb);
2962 int has_h264 = 0, has_video = 0;
2966 for (i = 0; i < s->nb_streams; i++) {
2967 AVStream *st = s->streams[i];
2968 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
2970 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
2974 avio_wb32(pb, 0); /* size */
2975 ffio_wfourcc(pb, "ftyp");
2977 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2978 ffio_wfourcc(pb, mov->major_brand);
2979 else if (mov->mode == MODE_3GP) {
2980 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2981 minor = has_h264 ? 0x100 : 0x200;
2982 } else if (mov->mode & MODE_3G2) {
2983 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2984 minor = has_h264 ? 0x20000 : 0x10000;
2985 } else if (mov->mode == MODE_PSP)
2986 ffio_wfourcc(pb, "MSNV");
2987 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
2988 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
2989 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2990 ffio_wfourcc(pb, "iso4");
2991 else if (mov->mode == MODE_MP4)
2992 ffio_wfourcc(pb, "isom");
2993 else if (mov->mode == MODE_IPOD)
2994 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2995 else if (mov->mode == MODE_ISM)
2996 ffio_wfourcc(pb, "isml");
2997 else if (mov->mode == MODE_F4V)
2998 ffio_wfourcc(pb, "f4v ");
3000 ffio_wfourcc(pb, "qt ");
3002 avio_wb32(pb, minor);
3004 if (mov->mode == MODE_MOV)
3005 ffio_wfourcc(pb, "qt ");
3006 else if (mov->mode == MODE_ISM) {
3007 ffio_wfourcc(pb, "piff");
3008 } else if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
3009 ffio_wfourcc(pb, "isom");
3010 ffio_wfourcc(pb, "iso2");
3012 ffio_wfourcc(pb, "avc1");
3015 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
3016 // brand. This is compatible with users that don't understand tfdt.
3017 if (mov->flags & FF_MOV_FLAG_FRAGMENT && mov->mode != MODE_ISM)
3018 ffio_wfourcc(pb, "iso6");
3020 if (mov->mode == MODE_3GP)
3021 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
3022 else if (mov->mode & MODE_3G2)
3023 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
3024 else if (mov->mode == MODE_PSP)
3025 ffio_wfourcc(pb, "MSNV");
3026 else if (mov->mode == MODE_MP4)
3027 ffio_wfourcc(pb, "mp41");
3029 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3030 ffio_wfourcc(pb, "dash");
3032 return update_size(pb, pos);
3035 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
3037 AVStream *video_st = s->streams[0];
3038 AVCodecParameters *video_par = s->streams[0]->codecpar;
3039 AVCodecParameters *audio_par = s->streams[1]->codecpar;
3040 int audio_rate = audio_par->sample_rate;
3041 // TODO: should be avg_frame_rate
3042 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
3043 int audio_kbitrate = audio_par->bit_rate / 1000;
3044 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
3046 avio_wb32(pb, 0x94); /* size */
3047 ffio_wfourcc(pb, "uuid");
3048 ffio_wfourcc(pb, "PROF");
3050 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3051 avio_wb32(pb, 0xbb88695c);
3052 avio_wb32(pb, 0xfac9c740);
3054 avio_wb32(pb, 0x0); /* ? */
3055 avio_wb32(pb, 0x3); /* 3 sections ? */
3057 avio_wb32(pb, 0x14); /* size */
3058 ffio_wfourcc(pb, "FPRF");
3059 avio_wb32(pb, 0x0); /* ? */
3060 avio_wb32(pb, 0x0); /* ? */
3061 avio_wb32(pb, 0x0); /* ? */
3063 avio_wb32(pb, 0x2c); /* size */
3064 ffio_wfourcc(pb, "APRF"); /* audio */
3066 avio_wb32(pb, 0x2); /* TrackID */
3067 ffio_wfourcc(pb, "mp4a");
3068 avio_wb32(pb, 0x20f);
3070 avio_wb32(pb, audio_kbitrate);
3071 avio_wb32(pb, audio_kbitrate);
3072 avio_wb32(pb, audio_rate);
3073 avio_wb32(pb, audio_par->channels);
3075 avio_wb32(pb, 0x34); /* size */
3076 ffio_wfourcc(pb, "VPRF"); /* video */
3078 avio_wb32(pb, 0x1); /* TrackID */
3079 if (video_par->codec_id == AV_CODEC_ID_H264) {
3080 ffio_wfourcc(pb, "avc1");
3081 avio_wb16(pb, 0x014D);
3082 avio_wb16(pb, 0x0015);
3084 ffio_wfourcc(pb, "mp4v");
3085 avio_wb16(pb, 0x0000);
3086 avio_wb16(pb, 0x0103);
3089 avio_wb32(pb, video_kbitrate);
3090 avio_wb32(pb, video_kbitrate);
3091 avio_wb32(pb, frame_rate);
3092 avio_wb32(pb, frame_rate);
3093 avio_wb16(pb, video_par->width);
3094 avio_wb16(pb, video_par->height);
3095 avio_wb32(pb, 0x010001); /* ? */
3098 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
3100 MOVMuxContext *mov = s->priv_data;
3101 mov_write_ftyp_tag(pb,s);
3102 if (mov->mode == MODE_PSP) {
3103 if (s->nb_streams != 2) {
3104 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3105 return AVERROR(EINVAL);
3107 mov_write_uuidprof_tag(pb, s);
3112 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
3115 int i, closed_gop = 0;
3117 for (i = 0; i < pkt->size - 4; i++) {
3118 c = (c << 8) + pkt->data[i];
3119 if (c == 0x1b8) { // gop
3120 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
3121 } else if (c == 0x100) { // pic
3122 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
3123 if (!temp_ref || closed_gop) // I picture is not reordered
3124 *flags = MOV_SYNC_SAMPLE;
3126 *flags = MOV_PARTIAL_SYNC_SAMPLE;
3133 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
3135 const uint8_t *start, *next, *end = pkt->data + pkt->size;
3136 int seq = 0, entry = 0;
3137 int key = pkt->flags & AV_PKT_FLAG_KEY;
3138 start = find_next_marker(pkt->data, end);
3139 for (next = start; next < end; start = next) {
3140 next = find_next_marker(start + 4, end);
3141 switch (AV_RB32(start)) {
3142 case VC1_CODE_SEQHDR:
3145 case VC1_CODE_ENTRYPOINT:
3148 case VC1_CODE_SLICE:
3149 trk->vc1_info.slices = 1;
3153 if (!trk->entry && trk->vc1_info.first_packet_seen)
3154 trk->vc1_info.first_frag_written = 1;
3155 if (!trk->entry && !trk->vc1_info.first_frag_written) {
3156 /* First packet in first fragment */
3157 trk->vc1_info.first_packet_seq = seq;
3158 trk->vc1_info.first_packet_entry = entry;
3159 trk->vc1_info.first_packet_seen = 1;
3160 } else if ((seq && !trk->vc1_info.packet_seq) ||
3161 (entry && !trk->vc1_info.packet_entry)) {
3163 for (i = 0; i < trk->entry; i++)
3164 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
3165 trk->has_keyframes = 0;
3167 trk->vc1_info.packet_seq = 1;
3169 trk->vc1_info.packet_entry = 1;
3170 if (!trk->vc1_info.first_frag_written) {
3171 /* First fragment */
3172 if ((!seq || trk->vc1_info.first_packet_seq) &&
3173 (!entry || trk->vc1_info.first_packet_entry)) {
3174 /* First packet had the same headers as this one, readd the
3175 * sync sample flag. */
3176 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
3177 trk->has_keyframes = 1;
3181 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
3183 else if (trk->vc1_info.packet_seq)
3185 else if (trk->vc1_info.packet_entry)
3188 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
3189 trk->has_keyframes++;
3193 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
3195 MOVMuxContext *mov = s->priv_data;
3200 if (!track->mdat_buf)
3202 if (!mov->mdat_buf) {
3203 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3206 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3207 track->mdat_buf = NULL;
3209 offset = avio_tell(mov->mdat_buf);
3210 avio_write(mov->mdat_buf, buf, buf_size);
3213 for (i = track->entries_flushed; i < track->entry; i++)
3214 track->cluster[i].pos += offset;
3215 track->entries_flushed = track->entry;
3219 static int mov_flush_fragment(AVFormatContext *s, int force)
3221 MOVMuxContext *mov = s->priv_data;
3222 int i, first_track = -1;
3223 int64_t mdat_size = 0;
3224 int has_video = 0, starts_with_key = 0, first_video_track = 1;
3226 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
3229 // Try to fill in the duration of the last packet in each stream
3230 // from queued packets in the interleave queues. If the flushing
3231 // of fragments was triggered automatically by an AVPacket, we
3232 // already have reliable info for the end of that track, but other
3233 // tracks may need to be filled in.
3234 for (i = 0; i < s->nb_streams; i++) {
3235 MOVTrack *track = &mov->tracks[i];
3236 if (!track->end_reliable) {
3238 if (!ff_interleaved_peek(s, i, &pkt, 1)) {
3239 if (track->dts_shift != AV_NOPTS_VALUE)
3240 pkt.dts += track->dts_shift;
3241 track->track_duration = pkt.dts - track->start_dts;
3242 if (pkt.pts != AV_NOPTS_VALUE)
3243 track->end_pts = pkt.pts;
3245 track->end_pts = pkt.dts;
3250 for (i = 0; i < mov->nb_streams; i++) {
3251 MOVTrack *track = &mov->tracks[i];
3252 if (track->entry <= 1)
3254 // Sample durations are calculated as the diff of dts values,
3255 // but for the last sample in a fragment, we don't know the dts
3256 // of the first sample in the next fragment, so we have to rely
3257 // on what was set as duration in the AVPacket. Not all callers
3258 // set this though, so we might want to replace it with an
3259 // estimate if it currently is zero.
3260 if (get_cluster_duration(track, track->entry - 1) != 0)
3262 // Use the duration (i.e. dts diff) of the second last sample for
3263 // the last one. This is a wild guess (and fatal if it turns out
3264 // to be too long), but probably the best we can do - having a zero
3265 // duration is bad as well.
3266 track->track_duration += get_cluster_duration(track, track->entry - 2);
3267 track->end_pts += get_cluster_duration(track, track->entry - 2);
3268 if (!mov->missing_duration_warned) {
3269 av_log(s, AV_LOG_WARNING,
3270 "Estimating the duration of the last packet in a "
3271 "fragment, consider setting the duration field in "
3272 "AVPacket instead.\n");
3273 mov->missing_duration_warned = 1;
3277 if (!mov->moov_written) {
3278 int64_t pos = avio_tell(s->pb);
3280 AVIOContext *moov_buf;
3284 for (i = 0; i < mov->nb_streams; i++)
3285 if (!mov->tracks[i].entry)
3287 /* Don't write the initial moov unless all tracks have data */
3288 if (i < mov->nb_streams && !force)
3291 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3293 mov_write_moov_tag(moov_buf, mov, s);
3294 buf_size = ffio_close_null_buf(moov_buf);
3295 for (i = 0; i < mov->nb_streams; i++)
3296 mov->tracks[i].data_offset = pos + buf_size + 8;
3298 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
3299 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3300 mov_write_identification(s->pb, s);
3301 mov_write_moov_tag(s->pb, mov, s);
3303 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
3304 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3305 mov->reserved_header_pos = avio_tell(s->pb);
3307 mov->moov_written = 1;
3311 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3312 mov->mdat_buf = NULL;
3313 avio_wb32(s->pb, buf_size + 8);
3314 ffio_wfourcc(s->pb, "mdat");
3315 avio_write(s->pb, buf, buf_size);
3318 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
3319 mov->reserved_header_pos = avio_tell(s->pb);
3321 mov->moov_written = 1;
3323 for (i = 0; i < mov->nb_streams; i++) {
3324 if (mov->tracks[i].entry)
3325 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
3326 mov->tracks[i].track_duration -
3327 mov->tracks[i].cluster[0].dts;
3328 mov->tracks[i].entry = 0;
3329 mov->tracks[i].end_reliable = 0;
3335 if (mov->frag_interleave) {
3336 for (i = 0; i < mov->nb_streams; i++) {
3337 MOVTrack *track = &mov->tracks[i];
3339 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
3345 mdat_size = avio_tell(mov->mdat_buf);
3348 for (i = 0; i < mov->nb_streams; i++) {
3349 MOVTrack *track = &mov->tracks[i];
3350 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
3351 track->data_offset = 0;
3353 track->data_offset = mdat_size;
3354 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3356 if (first_video_track) {
3358 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
3359 first_video_track = 0;
3364 if (track->mdat_buf)
3365 mdat_size += avio_tell(track->mdat_buf);
3366 if (first_track < 0)
3373 avio_write_marker(s->pb,
3374 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
3375 (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);
3377 for (i = 0; i < mov->nb_streams; i++) {
3378 MOVTrack *track = &mov->tracks[i];
3379 int buf_size, write_moof = 1, moof_tracks = -1;
3381 int64_t duration = 0;
3384 duration = track->start_dts + track->track_duration -
3385 track->cluster[0].dts;
3386 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
3387 if (!track->mdat_buf)
3389 mdat_size = avio_tell(track->mdat_buf);
3392 write_moof = i == first_track;
3398 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
3401 avio_wb32(s->pb, mdat_size + 8);
3402 ffio_wfourcc(s->pb, "mdat");
3406 track->frag_start += duration;
3408 track->entries_flushed = 0;
3409 track->end_reliable = 0;
3410 if (!mov->frag_interleave) {
3411 if (!track->mdat_buf)
3413 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3414 track->mdat_buf = NULL;
3418 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
3419 mov->mdat_buf = NULL;
3422 avio_write(s->pb, buf, buf_size);
3432 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
3434 MOVMuxContext *mov = s->priv_data;
3435 int had_moov = mov->moov_written;
3436 int ret = mov_flush_fragment(s, force);
3439 // If using delay_moov, the first flush only wrote the moov,
3440 // not the actual moof+mdat pair, thus flush once again.
3441 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3442 ret = mov_flush_fragment(s, force);
3446 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3448 MOVMuxContext *mov = s->priv_data;
3449 AVIOContext *pb = s->pb;
3450 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3451 AVCodecParameters *par = trk->par;
3452 unsigned int samples_in_chunk = 0;
3453 int size = pkt->size, ret = 0;
3454 uint8_t *reformatted_data = NULL;
3456 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3458 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3459 if (mov->frag_interleave && mov->fragments > 0) {
3460 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
3461 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
3466 if (!trk->mdat_buf) {
3467 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3472 if (!mov->mdat_buf) {
3473 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3480 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
3481 /* We must find out how many AMR blocks there are in one packet */
3482 static const uint16_t packed_size[16] =
3483 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3486 while (len < size && samples_in_chunk < 100) {
3487 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3490 if (samples_in_chunk > 1) {
3491 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3494 } else if (trk->sample_size)
3495 samples_in_chunk = size / trk->sample_size;
3497 samples_in_chunk = 1;
3499 /* copy extradata if it exists */
3500 if (trk->vos_len == 0 && par->extradata_size > 0) {
3501 trk->vos_len = par->extradata_size;
3502 trk->vos_data = av_malloc(trk->vos_len);
3503 if (!trk->vos_data) {
3504 ret = AVERROR(ENOMEM);
3507 memcpy(trk->vos_data, par->extradata, trk->vos_len);
3510 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3511 /* from x264 or from bytestream H.264 */
3512 /* NAL reformatting needed */
3513 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3514 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3516 avio_write(pb, reformatted_data, size);
3518 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3520 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3521 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3522 /* extradata is Annex B, assume the bitstream is too and convert it */
3523 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3524 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3525 avio_write(pb, reformatted_data, size);
3527 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3530 avio_write(pb, pkt->data, size);
3533 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
3534 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3535 /* copy frame to create needed atoms */
3536 trk->vos_len = size;
3537 trk->vos_data = av_malloc(size);
3538 if (!trk->vos_data) {
3539 ret = AVERROR(ENOMEM);
3542 memcpy(trk->vos_data, pkt->data, size);
3545 if (trk->entry >= trk->cluster_capacity) {
3546 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3547 if (av_reallocp_array(&trk->cluster, new_capacity,
3548 sizeof(*trk->cluster))) {
3549 ret = AVERROR(ENOMEM);
3552 trk->cluster_capacity = new_capacity;
3555 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3556 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3557 trk->cluster[trk->entry].size = size;
3558 trk->cluster[trk->entry].entries = samples_in_chunk;
3559 trk->cluster[trk->entry].dts = pkt->dts;
3560 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3561 if (!trk->frag_discont) {
3562 /* First packet of a new fragment. We already wrote the duration
3563 * of the last packet of the previous fragment based on track_duration,
3564 * which might not exactly match our dts. Therefore adjust the dts
3565 * of this packet to be what the previous packets duration implies. */
3566 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3567 /* We also may have written the pts and the corresponding duration
3568 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
3569 * the next fragment. This means the cts of the first sample must
3570 * be the same in all fragments, unless end_pts was updated by
3571 * the packet causing the fragment to be written. */
3572 if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)) ||
3573 mov->mode == MODE_ISM)
3574 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
3576 /* New fragment, but discontinuous from previous fragments.
3577 * Pretend the duration sum of the earlier fragments is
3578 * pkt->dts - trk->start_dts. */
3579 trk->frag_start = pkt->dts - trk->start_dts;
3580 trk->end_pts = AV_NOPTS_VALUE;
3581 trk->frag_discont = 0;
3584 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
3585 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
3586 /* Not using edit lists and shifting the first track to start from zero.
3587 * If the other streams start from a later timestamp, we won't be able
3588 * to signal the difference in starting time without an edit list.
3589 * Thus move the timestamp for this first sample to 0, increasing
3590 * its duration instead. */
3591 trk->cluster[trk->entry].dts = trk->start_dts = 0;
3593 if (trk->start_dts == AV_NOPTS_VALUE) {
3594 trk->start_dts = pkt->dts;
3595 if (trk->frag_discont) {
3596 if (mov->use_editlist) {
3597 /* Pretend the whole stream started at pts=0, with earlier fragments
3598 * already written. If the stream started at pts=0, the duration sum
3599 * of earlier fragments would have been pkt->pts. */
3600 trk->frag_start = pkt->pts;
3601 trk->start_dts = pkt->dts - pkt->pts;
3603 /* Pretend the whole stream started at dts=0, with earlier fragments
3604 * already written, with a duration summing up to pkt->dts. */
3605 trk->frag_start = pkt->dts;
3608 trk->frag_discont = 0;
3609 } else if (pkt->dts && mov->moov_written)
3610 av_log(s, AV_LOG_WARNING,
3611 "Track %d starts with a nonzero dts %"PRId64", while the moov "
3612 "already has been written. Set the delay_moov flag to handle "
3614 pkt->stream_index, pkt->dts);
3616 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3618 if (pkt->pts == AV_NOPTS_VALUE) {
3619 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3620 pkt->pts = pkt->dts;
3622 if (pkt->dts != pkt->pts)
3623 trk->flags |= MOV_TRACK_CTTS;
3624 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3625 trk->cluster[trk->entry].flags = 0;
3626 if (trk->start_cts == AV_NOPTS_VALUE)
3627 trk->start_cts = pkt->pts - pkt->dts;
3628 if (trk->end_pts == AV_NOPTS_VALUE)
3629 trk->end_pts = trk->cluster[trk->entry].dts +
3630 trk->cluster[trk->entry].cts + pkt->duration;
3632 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
3633 trk->cluster[trk->entry].cts +
3636 if (par->codec_id == AV_CODEC_ID_VC1) {
3637 mov_parse_vc1_frame(pkt, trk);
3638 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3639 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3640 trk->entry > 0) { // force sync sample for the first key frame
3641 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3642 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3643 trk->flags |= MOV_TRACK_STPS;
3645 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3647 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3648 trk->has_keyframes++;
3651 trk->sample_count += samples_in_chunk;
3652 mov->mdat_size += size;
3654 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3655 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3656 reformatted_data, size);
3659 av_free(reformatted_data);
3663 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3666 mov_flush_fragment(s, 1);
3669 MOVMuxContext *mov = s->priv_data;
3670 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3671 AVCodecParameters *par = trk->par;
3672 int64_t frag_duration = 0;
3673 int size = pkt->size;
3675 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
3677 for (i = 0; i < s->nb_streams; i++)
3678 mov->tracks[i].frag_discont = 1;
3679 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
3682 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) {
3683 if (trk->dts_shift == AV_NOPTS_VALUE)
3684 trk->dts_shift = pkt->pts - pkt->dts;
3685 pkt->dts += trk->dts_shift;
3689 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
3690 trk->start_dts = pkt->dts;
3691 if (pkt->pts != AV_NOPTS_VALUE)
3692 trk->start_cts = pkt->pts - pkt->dts;
3697 return 0; /* Discard 0 sized packets */
3701 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3702 s->streams[pkt->stream_index]->time_base,
3704 if ((mov->max_fragment_duration &&
3705 frag_duration >= mov->max_fragment_duration) ||
3706 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3707 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3708 par->codec_type == AVMEDIA_TYPE_VIDEO &&
3709 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3710 if (frag_duration >= mov->min_fragment_duration) {
3711 // Set the duration of this track to line up with the next
3712 // sample in this track. This avoids relying on AVPacket
3713 // duration, but only helps for this particular track, not
3714 // for the other ones that are flushed at the same time.
3715 trk->track_duration = pkt->dts - trk->start_dts;
3716 if (pkt->pts != AV_NOPTS_VALUE)
3717 trk->end_pts = pkt->pts;
3719 trk->end_pts = pkt->dts;
3720 trk->end_reliable = 1;
3721 mov_auto_flush_fragment(s, 0);
3725 return ff_mov_write_packet(s, pkt);
3729 // QuickTime chapters involve an additional text track with the chapter names
3730 // as samples, and a tref pointing from the other tracks to the chapter one.
3731 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3733 MOVMuxContext *mov = s->priv_data;
3734 MOVTrack *track = &mov->tracks[tracknum];
3735 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3737 // These properties are required to make QT recognize the chapter track
3738 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3740 track->mode = mov->mode;
3741 track->tag = MKTAG('t','e','x','t');
3742 track->timescale = MOV_TIMESCALE;
3743 track->par = avcodec_parameters_alloc();
3745 return AVERROR(ENOMEM);
3746 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
3747 track->par->extradata = av_malloc(sizeof(chapter_properties));
3748 if (!track->par->extradata)
3749 return AVERROR(ENOMEM);
3750 track->par->extradata_size = sizeof(chapter_properties);
3751 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
3753 for (i = 0; i < s->nb_chapters; i++) {
3754 AVChapter *c = s->chapters[i];
3755 AVDictionaryEntry *t;
3757 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3758 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3759 pkt.duration = end - pkt.dts;
3761 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3762 static const char encd[12] = {
3763 0x00, 0x00, 0x00, 0x0C,
3765 0x00, 0x00, 0x01, 0x00 };
3766 len = strlen(t->value);
3767 pkt.size = len + 2 + 12;
3768 pkt.data = av_malloc(pkt.size);
3770 return AVERROR(ENOMEM);
3771 AV_WB16(pkt.data, len);
3772 memcpy(pkt.data + 2, t->value, len);
3773 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3774 ff_mov_write_packet(s, &pkt);
3775 av_freep(&pkt.data);
3783 * st->disposition controls the "enabled" flag in the tkhd tag.
3784 * QuickTime will not play a track if it is not enabled. So make sure
3785 * that one track of each type (audio, video, subtitle) is enabled.
3787 * Subtitles are special. For audio and video, setting "enabled" also
3788 * makes the track "default" (i.e. it is rendered when played). For
3789 * subtitles, an "enabled" subtitle is not rendered by default, but
3790 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3793 static void enable_tracks(AVFormatContext *s)
3795 MOVMuxContext *mov = s->priv_data;
3797 int enabled[AVMEDIA_TYPE_NB];
3798 int first[AVMEDIA_TYPE_NB];
3800 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3805 for (i = 0; i < s->nb_streams; i++) {
3806 AVStream *st = s->streams[i];
3808 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3809 st->codecpar->codec_type >= AVMEDIA_TYPE_NB)
3812 if (first[st->codecpar->codec_type] < 0)
3813 first[st->codecpar->codec_type] = i;
3814 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3815 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3816 enabled[st->codecpar->codec_type]++;
3820 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3822 case AVMEDIA_TYPE_VIDEO:
3823 case AVMEDIA_TYPE_AUDIO:
3824 case AVMEDIA_TYPE_SUBTITLE:
3826 mov->per_stream_grouping = 1;
3827 if (!enabled[i] && first[i] >= 0)
3828 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3834 static void mov_free(AVFormatContext *s)
3836 MOVMuxContext *mov = s->priv_data;
3839 if (mov->chapter_track)
3840 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
3842 for (i = 0; i < mov->nb_streams; i++) {
3843 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3844 ff_mov_close_hinting(&mov->tracks[i]);
3845 av_freep(&mov->tracks[i].cluster);
3846 av_freep(&mov->tracks[i].frag_info);
3848 if (mov->tracks[i].vos_len)
3849 av_free(mov->tracks[i].vos_data);
3852 av_freep(&mov->tracks);
3855 static uint32_t rgb_to_yuv(uint32_t rgb)
3860 r = (rgb >> 16) & 0xFF;
3861 g = (rgb >> 8) & 0xFF;
3864 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3865 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3866 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3868 return (y << 16) | (cr << 8) | cb;
3871 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3874 int i, width = 720, height = 480;
3875 int have_palette = 0, have_size = 0;
3876 uint32_t palette[16];
3877 char *cur = st->codecpar->extradata;
3879 while (cur && *cur) {
3880 if (strncmp("palette:", cur, 8) == 0) {
3882 count = sscanf(cur + 8,
3883 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3884 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3885 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3886 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3887 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3888 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3889 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3890 &palette[12], &palette[13], &palette[14], &palette[15]);
3892 for (i = 0; i < count; i++) {
3893 palette[i] = rgb_to_yuv(palette[i]);
3896 } else if (!strncmp("size:", cur, 5)) {
3897 sscanf(cur + 5, "%dx%d", &width, &height);
3900 if (have_palette && have_size)
3902 cur += strcspn(cur, "\n\r");
3903 cur += strspn(cur, "\n\r");
3906 track->vos_data = av_malloc(16*4);
3907 if (!track->vos_data)
3908 return AVERROR(ENOMEM);
3909 for (i = 0; i < 16; i++) {
3910 AV_WB32(track->vos_data + i * 4, palette[i]);
3912 track->vos_len = 16 * 4;
3914 st->codecpar->width = width;
3915 st->codecpar->height = track->height = height;
3920 static int mov_write_header(AVFormatContext *s)
3922 AVIOContext *pb = s->pb;
3923 MOVMuxContext *mov = s->priv_data;
3924 AVDictionaryEntry *t;
3925 int i, ret, hint_track = 0;
3929 /* Default mode == MP4 */
3930 mov->mode = MODE_MP4;
3933 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3934 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3935 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3936 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3937 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3938 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3939 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3942 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
3943 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
3945 /* Set the FRAGMENT flag if any of the fragmentation methods are
3947 if (mov->max_fragment_duration || mov->max_fragment_size ||
3948 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3949 FF_MOV_FLAG_FRAG_KEYFRAME |
3950 FF_MOV_FLAG_FRAG_CUSTOM))
3951 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3953 /* Set other implicit flags immediately */
3954 if (mov->mode == MODE_ISM)
3955 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3956 FF_MOV_FLAG_FRAGMENT;
3957 if (mov->flags & FF_MOV_FLAG_DASH)
3958 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
3959 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
3961 if (mov->use_editlist < 0) {
3962 mov->use_editlist = 1;
3963 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3964 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
3965 // If we can avoid needing an edit list by shifting the
3966 // tracks, prefer that over (trying to) write edit lists
3967 // in fragmented output.
3968 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
3969 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
3970 mov->use_editlist = 0;
3973 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
3974 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
3975 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
3977 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO)
3978 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
3980 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
3981 * if the latter is set that's enough and omit_tfhd_offset doesn't
3982 * add anything extra on top of that. */
3983 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
3984 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
3985 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
3987 if (mov->frag_interleave &&
3988 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
3989 av_log(s, AV_LOG_ERROR,
3990 "Sample interleaving in fragments is mutually exclusive with "
3991 "omit_tfhd_offset and separate_moof\n");
3992 return AVERROR(EINVAL);
3995 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3996 * is enabled, we don't support non-seekable output at all. */
3997 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
3998 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3999 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
4000 return AVERROR(EINVAL);
4004 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4005 if ((ret = mov_write_identification(pb, s)) < 0)
4009 mov->nb_streams = s->nb_streams;
4010 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
4011 mov->chapter_track = mov->nb_streams++;
4013 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4014 /* Add hint tracks for each audio and video stream */
4015 hint_track = mov->nb_streams;
4016 for (i = 0; i < s->nb_streams; i++) {
4017 AVStream *st = s->streams[i];
4018 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4019 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4025 // Reserve an extra stream for chapters for the case where chapters
4026 // are written in the trailer
4027 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
4029 return AVERROR(ENOMEM);
4031 for (i = 0; i < s->nb_streams; i++) {
4032 AVStream *st= s->streams[i];
4033 MOVTrack *track= &mov->tracks[i];
4034 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4037 track->par = st->codecpar;
4038 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
4039 if (track->language < 0)
4040 track->language = 0;
4041 track->mode = mov->mode;
4042 track->tag = mov_find_codec_tag(s, track);
4044 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
4045 "codec not currently supported in container\n", i);
4048 /* If hinting of this track is enabled by a later hint track,
4049 * this is updated. */
4050 track->hint_track = -1;
4051 track->start_dts = AV_NOPTS_VALUE;
4052 track->start_cts = AV_NOPTS_VALUE;
4053 track->end_pts = AV_NOPTS_VALUE;
4054 track->dts_shift = AV_NOPTS_VALUE;
4055 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
4056 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
4057 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
4058 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
4059 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
4060 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
4063 track->height = track->tag >> 24 == 'n' ? 486 : 576;
4065 track->timescale = st->time_base.den;
4066 if (track->mode == MODE_MOV && track->timescale > 100000)
4067 av_log(s, AV_LOG_WARNING,
4068 "WARNING codec timebase is very high. If duration is too long,\n"
4069 "file may not be playable by quicktime. Specify a shorter timebase\n"
4070 "or choose different container.\n");
4071 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4072 track->timescale = st->codecpar->sample_rate;
4073 /* set sample_size for PCM and ADPCM */
4074 if (av_get_bits_per_sample(st->codecpar->codec_id) ||
4075 st->codecpar->codec_id == AV_CODEC_ID_ILBC) {
4076 if (!st->codecpar->block_align) {
4077 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
4080 track->sample_size = st->codecpar->block_align;
4082 /* set audio_vbr for compressed audio */
4083 if (av_get_bits_per_sample(st->codecpar->codec_id) < 8) {
4084 track->audio_vbr = 1;
4086 if (track->mode != MODE_MOV &&
4087 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
4088 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
4089 i, track->par->sample_rate);
4092 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
4093 track->timescale = st->time_base.den;
4094 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
4095 track->timescale = st->time_base.den;
4098 track->height = st->codecpar->height;
4099 /* The ism specific timescale isn't mandatory, but is assumed by
4100 * some tools, such as mp4split. */
4101 if (mov->mode == MODE_ISM)
4102 track->timescale = 10000000;
4104 avpriv_set_pts_info(st, 64, 1, track->timescale);
4106 /* copy extradata if it exists */
4107 if (st->codecpar->extradata_size) {
4108 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
4109 mov_create_dvd_sub_decoder_specific_info(track, st);
4111 track->vos_len = st->codecpar->extradata_size;
4112 track->vos_data = av_malloc(track->vos_len);
4113 if (!track->vos_data)
4115 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
4122 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
4123 /* If no fragmentation options have been set, set a default. */
4124 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
4125 FF_MOV_FLAG_FRAG_CUSTOM)) &&
4126 !mov->max_fragment_duration && !mov->max_fragment_size)
4127 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
4129 if (mov->flags & FF_MOV_FLAG_FASTSTART)
4130 mov->reserved_header_pos = avio_tell(pb);
4131 mov_write_mdat_tag(pb, mov);
4134 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
4135 mov->time = ff_iso8601_to_unix_time(t->value);
4137 mov->time += 0x7C25B080; // 1970 based -> 1904 based
4139 if (mov->chapter_track)
4140 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
4143 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
4144 /* Initialize the hint tracks for each audio and video stream */
4145 for (i = 0; i < s->nb_streams; i++) {
4146 AVStream *st = s->streams[i];
4147 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
4148 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
4149 ff_mov_init_hinting(s, hint_track, i);
4157 if (mov->flags & FF_MOV_FLAG_ISML)
4158 mov_write_isml_manifest(pb, mov);
4160 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
4161 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
4162 mov_write_moov_tag(pb, mov, s);
4164 mov->moov_written = 1;
4165 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4166 mov->reserved_header_pos = avio_tell(pb);
4175 static int get_moov_size(AVFormatContext *s)
4178 AVIOContext *moov_buf;
4179 MOVMuxContext *mov = s->priv_data;
4181 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
4183 mov_write_moov_tag(moov_buf, mov, s);
4184 return ffio_close_null_buf(moov_buf);
4187 static int get_sidx_size(AVFormatContext *s)
4191 MOVMuxContext *mov = s->priv_data;
4193 if ((ret = ffio_open_null_buf(&buf)) < 0)
4195 mov_write_sidx_tags(buf, mov, -1, 0);
4196 return ffio_close_null_buf(buf);
4200 * This function gets the moov size if moved to the top of the file: the chunk
4201 * offset table can switch between stco (32-bit entries) to co64 (64-bit
4202 * entries) when the moov is moved to the beginning, so the size of the moov
4203 * would change. It also updates the chunk offset tables.
4205 static int compute_moov_size(AVFormatContext *s)
4207 int i, moov_size, moov_size2;
4208 MOVMuxContext *mov = s->priv_data;
4210 moov_size = get_moov_size(s);
4214 for (i = 0; i < mov->nb_streams; i++)
4215 mov->tracks[i].data_offset += moov_size;
4217 moov_size2 = get_moov_size(s);
4221 /* if the size changed, we just switched from stco to co64 and need to
4222 * update the offsets */
4223 if (moov_size2 != moov_size)
4224 for (i = 0; i < mov->nb_streams; i++)
4225 mov->tracks[i].data_offset += moov_size2 - moov_size;
4230 static int compute_sidx_size(AVFormatContext *s)
4233 MOVMuxContext *mov = s->priv_data;
4235 sidx_size = get_sidx_size(s);
4239 for (i = 0; i < mov->nb_streams; i++)
4240 mov->tracks[i].data_offset += sidx_size;
4245 static int shift_data(AVFormatContext *s)
4247 int ret = 0, moov_size;
4248 MOVMuxContext *mov = s->priv_data;
4249 int64_t pos, pos_end = avio_tell(s->pb);
4250 uint8_t *buf, *read_buf[2];
4251 int read_buf_id = 0;
4253 AVIOContext *read_pb;
4255 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4256 moov_size = compute_sidx_size(s);
4258 moov_size = compute_moov_size(s);
4262 buf = av_malloc(moov_size * 2);
4264 return AVERROR(ENOMEM);
4266 read_buf[1] = buf + moov_size;
4268 /* Shift the data: the AVIO context of the output can only be used for
4269 * writing, so we re-open the same output, but for reading. It also avoids
4270 * a read/seek/write/seek back and forth. */
4272 ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
4274 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
4275 "the second pass (faststart)\n", s->filename);
4279 /* mark the end of the shift to up to the last data we wrote, and get ready
4281 pos_end = avio_tell(s->pb);
4282 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
4284 /* start reading at where the new moov will be placed */
4285 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
4286 pos = avio_tell(read_pb);
4288 #define READ_BLOCK do { \
4289 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
4293 /* shift data by chunk of at most moov_size */
4298 n = read_size[read_buf_id];
4301 avio_write(s->pb, read_buf[read_buf_id], n);
4303 } while (pos < pos_end);
4304 ff_format_io_close(s, &read_pb);
4311 static int mov_write_trailer(AVFormatContext *s)
4313 MOVMuxContext *mov = s->priv_data;
4314 AVIOContext *pb = s->pb;
4319 // If there were no chapters when the header was written, but there
4320 // are chapters now, write them in the trailer. This only works
4321 // when we are not doing fragments.
4322 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4323 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
4324 mov->chapter_track = mov->nb_streams++;
4325 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
4330 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
4331 moov_pos = avio_tell(pb);
4333 /* Write size of mdat tag */
4334 if (mov->mdat_size + 8 <= UINT32_MAX) {
4335 avio_seek(pb, mov->mdat_pos, SEEK_SET);
4336 avio_wb32(pb, mov->mdat_size + 8);
4338 /* overwrite 'wide' placeholder atom */
4339 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
4340 /* special value: real atom size will be 64 bit value after
4343 ffio_wfourcc(pb, "mdat");
4344 avio_wb64(pb, mov->mdat_size + 16);
4346 avio_seek(pb, moov_pos, SEEK_SET);
4348 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
4349 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
4350 res = shift_data(s);
4352 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4353 mov_write_moov_tag(pb, mov, s);
4356 mov_write_moov_tag(pb, mov, s);
4359 mov_auto_flush_fragment(s, 1);
4360 for (i = 0; i < mov->nb_streams; i++)
4361 mov->tracks[i].data_offset = 0;
4362 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
4363 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
4364 res = shift_data(s);
4366 int64_t end = avio_tell(pb);
4367 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
4368 mov_write_sidx_tags(pb, mov, -1, 0);
4369 avio_seek(pb, end, SEEK_SET);
4370 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4371 mov_write_mfra_tag(pb, mov);
4373 } else if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
4374 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
4375 mov_write_mfra_tag(pb, mov);
4385 static const AVCodecTag codec_3gp_tags[] = {
4386 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
4387 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
4388 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
4389 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
4390 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
4391 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
4392 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
4393 { AV_CODEC_ID_NONE, 0 },
4396 const AVCodecTag codec_mp4_tags[] = {
4397 { AV_CODEC_ID_MPEG4 , MKTAG('m', 'p', '4', 'v') },
4398 { AV_CODEC_ID_H264 , MKTAG('a', 'v', 'c', '1') },
4399 { AV_CODEC_ID_HEVC , MKTAG('h', 'e', 'v', '1') },
4400 { AV_CODEC_ID_MPEG2VIDEO , MKTAG('m', 'p', '4', 'v') },
4401 { AV_CODEC_ID_MPEG1VIDEO , MKTAG('m', 'p', '4', 'v') },
4402 { AV_CODEC_ID_MJPEG , MKTAG('m', 'p', '4', 'v') },
4403 { AV_CODEC_ID_PNG , MKTAG('m', 'p', '4', 'v') },
4404 { AV_CODEC_ID_JPEG2000 , MKTAG('m', 'p', '4', 'v') },
4405 { AV_CODEC_ID_VC1 , MKTAG('v', 'c', '-', '1') },
4406 { AV_CODEC_ID_DIRAC , MKTAG('d', 'r', 'a', 'c') },
4407 { AV_CODEC_ID_TSCC2 , MKTAG('m', 'p', '4', 'v') },
4408 { AV_CODEC_ID_AAC , MKTAG('m', 'p', '4', 'a') },
4409 { AV_CODEC_ID_MP4ALS , MKTAG('m', 'p', '4', 'a') },
4410 { AV_CODEC_ID_MP3 , MKTAG('m', 'p', '4', 'a') },
4411 { AV_CODEC_ID_MP2 , MKTAG('m', 'p', '4', 'a') },
4412 { AV_CODEC_ID_AC3 , MKTAG('a', 'c', '-', '3') },
4413 { AV_CODEC_ID_DTS , MKTAG('m', 'p', '4', 'a') },
4414 { AV_CODEC_ID_VORBIS , MKTAG('m', 'p', '4', 'a') },
4415 { AV_CODEC_ID_QCELP , MKTAG('m', 'p', '4', 'a') },
4416 { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') },
4417 { AV_CODEC_ID_MOV_TEXT , MKTAG('t', 'x', '3', 'g') },
4418 { AV_CODEC_ID_NONE , 0 },
4421 const AVCodecTag codec_ism_tags[] = {
4422 { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') },
4423 { AV_CODEC_ID_NONE , 0 },
4426 static const AVCodecTag codec_ipod_tags[] = {
4427 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
4428 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
4429 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
4430 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
4431 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
4432 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
4433 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
4434 { AV_CODEC_ID_NONE, 0 },
4437 static const AVCodecTag codec_f4v_tags[] = {
4438 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
4439 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
4440 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
4441 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
4442 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
4443 { AV_CODEC_ID_NONE, 0 },
4446 #if CONFIG_MOV_MUXER
4448 AVOutputFormat ff_mov_muxer = {
4450 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
4451 .extensions = "mov",
4452 .priv_data_size = sizeof(MOVMuxContext),
4453 .audio_codec = AV_CODEC_ID_AAC,
4454 .video_codec = CONFIG_LIBX264_ENCODER ?
4455 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4456 .write_header = mov_write_header,
4457 .write_packet = mov_write_packet,
4458 .write_trailer = mov_write_trailer,
4459 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4460 .codec_tag = (const AVCodecTag* const []){
4461 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
4463 .priv_class = &mov_muxer_class,
4466 #if CONFIG_TGP_MUXER
4468 AVOutputFormat ff_tgp_muxer = {
4470 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
4471 .extensions = "3gp",
4472 .priv_data_size = sizeof(MOVMuxContext),
4473 .audio_codec = AV_CODEC_ID_AMR_NB,
4474 .video_codec = AV_CODEC_ID_H263,
4475 .write_header = mov_write_header,
4476 .write_packet = mov_write_packet,
4477 .write_trailer = mov_write_trailer,
4478 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4479 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
4480 .priv_class = &tgp_muxer_class,
4483 #if CONFIG_MP4_MUXER
4485 AVOutputFormat ff_mp4_muxer = {
4487 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
4488 .mime_type = "application/mp4",
4489 .extensions = "mp4",
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 []){ codec_mp4_tags, 0 },
4499 .priv_class = &mp4_muxer_class,
4502 #if CONFIG_PSP_MUXER
4504 AVOutputFormat ff_psp_muxer = {
4506 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
4507 .extensions = "mp4,psp",
4508 .priv_data_size = sizeof(MOVMuxContext),
4509 .audio_codec = AV_CODEC_ID_AAC,
4510 .video_codec = CONFIG_LIBX264_ENCODER ?
4511 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
4512 .write_header = mov_write_header,
4513 .write_packet = mov_write_packet,
4514 .write_trailer = mov_write_trailer,
4515 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4516 .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, 0 },
4517 .priv_class = &psp_muxer_class,
4520 #if CONFIG_TG2_MUXER
4522 AVOutputFormat ff_tg2_muxer = {
4524 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
4525 .extensions = "3g2",
4526 .priv_data_size = sizeof(MOVMuxContext),
4527 .audio_codec = AV_CODEC_ID_AMR_NB,
4528 .video_codec = AV_CODEC_ID_H263,
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_3gp_tags, 0 },
4534 .priv_class = &tg2_muxer_class,
4537 #if CONFIG_IPOD_MUXER
4539 AVOutputFormat ff_ipod_muxer = {
4541 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
4542 .mime_type = "application/mp4",
4543 .extensions = "m4v,m4a",
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 []){ codec_ipod_tags, 0 },
4552 .priv_class = &ipod_muxer_class,
4555 #if CONFIG_ISMV_MUXER
4557 AVOutputFormat ff_ismv_muxer = {
4559 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
4560 .mime_type = "application/mp4",
4561 .extensions = "ismv,isma",
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 []){
4570 codec_mp4_tags, codec_ism_tags, 0 },
4571 .priv_class = &ismv_muxer_class,
4574 #if CONFIG_F4V_MUXER
4576 AVOutputFormat ff_f4v_muxer = {
4578 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
4579 .mime_type = "application/f4v",
4580 .extensions = "f4v",
4581 .priv_data_size = sizeof(MOVMuxContext),
4582 .audio_codec = AV_CODEC_ID_AAC,
4583 .video_codec = AV_CODEC_ID_H264,
4584 .write_header = mov_write_header,
4585 .write_packet = mov_write_packet,
4586 .write_trailer = mov_write_trailer,
4587 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
4588 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
4589 .priv_class = &f4v_muxer_class,