3 * Copyright (c) 2003 Thomas Raivio
4 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
34 #include "libavcodec/get_bits.h"
35 #include "libavcodec/put_bits.h"
36 #include "libavcodec/vc1_common.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/intfloat.h"
40 #include "libavutil/mathematics.h"
41 #include "libavutil/opt.h"
42 #include "libavutil/dict.h"
50 static const AVOption options[] = {
51 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
52 { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
53 { "empty_moov", "Make the initial moov atom empty (not supported by QuickTime)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
54 { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
55 { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
56 { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
57 { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
58 { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
59 { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
60 { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
61 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
62 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
63 { "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},
64 { "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},
65 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
66 { "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},
67 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
68 { "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},
69 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
73 #define MOV_CLASS(flavor)\
74 static const AVClass flavor ## _muxer_class = {\
75 .class_name = #flavor " muxer",\
76 .item_name = av_default_item_name,\
78 .version = LIBAVUTIL_VERSION_INT,\
81 static int utf8len(const uint8_t *b)
86 GET_UTF8(val, *b++, return -1;)
92 //FIXME support 64 bit variant with wide placeholders
93 static int64_t update_size(AVIOContext *pb, int64_t pos)
95 int64_t curpos = avio_tell(pb);
96 avio_seek(pb, pos, SEEK_SET);
97 avio_wb32(pb, curpos - pos); /* rewrite size */
98 avio_seek(pb, curpos, SEEK_SET);
103 static int co64_required(const MOVTrack *track)
105 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
110 /* Chunk offset atom */
111 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
114 int mode64 = co64_required(track); // use 32 bit size variant if possible
115 int64_t pos = avio_tell(pb);
116 avio_wb32(pb, 0); /* size */
118 ffio_wfourcc(pb, "co64");
120 ffio_wfourcc(pb, "stco");
121 avio_wb32(pb, 0); /* version & flags */
122 avio_wb32(pb, track->entry); /* entry count */
123 for (i = 0; i < track->entry; i++) {
125 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
127 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
129 return update_size(pb, pos);
132 /* Sample size atom */
133 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
136 int i, j, entries = 0, tst = -1, oldtst = -1;
138 int64_t pos = avio_tell(pb);
139 avio_wb32(pb, 0); /* size */
140 ffio_wfourcc(pb, "stsz");
141 avio_wb32(pb, 0); /* version & flags */
143 for (i = 0; i < track->entry; i++) {
144 tst = track->cluster[i].size / track->cluster[i].entries;
145 if (oldtst != -1 && tst != oldtst)
148 entries += track->cluster[i].entries;
150 if (equalChunks && track->entry) {
151 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
152 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
153 avio_wb32(pb, sSize); // sample size
154 avio_wb32(pb, entries); // sample count
156 avio_wb32(pb, 0); // sample size
157 avio_wb32(pb, entries); // sample count
158 for (i = 0; i < track->entry; i++) {
159 for (j = 0; j < track->cluster[i].entries; j++) {
160 avio_wb32(pb, track->cluster[i].size /
161 track->cluster[i].entries);
165 return update_size(pb, pos);
168 /* Sample to chunk atom */
169 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
171 int index = 0, oldval = -1, i;
172 int64_t entryPos, curpos;
174 int64_t pos = avio_tell(pb);
175 avio_wb32(pb, 0); /* size */
176 ffio_wfourcc(pb, "stsc");
177 avio_wb32(pb, 0); // version & flags
178 entryPos = avio_tell(pb);
179 avio_wb32(pb, track->entry); // entry count
180 for (i = 0; i < track->entry; i++) {
181 if (oldval != track->cluster[i].samples_in_chunk) {
182 avio_wb32(pb, i + 1); // first chunk
183 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
184 avio_wb32(pb, 0x1); // sample description index
185 oldval = track->cluster[i].samples_in_chunk;
189 curpos = avio_tell(pb);
190 avio_seek(pb, entryPos, SEEK_SET);
191 avio_wb32(pb, index); // rewrite size
192 avio_seek(pb, curpos, SEEK_SET);
194 return update_size(pb, pos);
197 /* Sync sample atom */
198 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
200 int64_t curpos, entryPos;
202 int64_t pos = avio_tell(pb);
203 avio_wb32(pb, 0); // size
204 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
205 avio_wb32(pb, 0); // version & flags
206 entryPos = avio_tell(pb);
207 avio_wb32(pb, track->entry); // entry count
208 for (i = 0; i < track->entry; i++) {
209 if (track->cluster[i].flags & flag) {
210 avio_wb32(pb, i + 1);
214 curpos = avio_tell(pb);
215 avio_seek(pb, entryPos, SEEK_SET);
216 avio_wb32(pb, index); // rewrite size
217 avio_seek(pb, curpos, SEEK_SET);
218 return update_size(pb, pos);
221 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
223 avio_wb32(pb, 0x11); /* size */
224 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
225 else ffio_wfourcc(pb, "damr");
226 ffio_wfourcc(pb, "FFMP");
227 avio_w8(pb, 0); /* decoder version */
229 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
230 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
231 avio_w8(pb, 0x01); /* Frames per sample */
235 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
240 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
242 if (track->vos_len < 7)
246 ffio_wfourcc(pb, "dac3");
248 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
249 fscod = get_bits(&gbc, 2);
250 frmsizecod = get_bits(&gbc, 6);
251 bsid = get_bits(&gbc, 5);
252 bsmod = get_bits(&gbc, 3);
253 acmod = get_bits(&gbc, 3);
255 skip_bits(&gbc, 2); // dsurmod
257 if ((acmod & 1) && acmod != 1)
258 skip_bits(&gbc, 2); // cmixlev
260 skip_bits(&gbc, 2); // surmixlev
262 lfeon = get_bits1(&gbc);
264 init_put_bits(&pbc, buf, sizeof(buf));
265 put_bits(&pbc, 2, fscod);
266 put_bits(&pbc, 5, bsid);
267 put_bits(&pbc, 3, bsmod);
268 put_bits(&pbc, 3, acmod);
269 put_bits(&pbc, 1, lfeon);
270 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
271 put_bits(&pbc, 5, 0); // reserved
273 flush_put_bits(&pbc);
274 avio_write(pb, buf, sizeof(buf));
280 * This function writes extradata "as is".
281 * Extradata must be formatted like a valid atom (with size and tag).
283 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
285 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
286 return track->enc->extradata_size;
289 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
294 avio_w8(pb, (size >> (7 * i)) | 0x80);
295 avio_w8(pb, size & 0x7F);
298 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
300 int64_t pos = avio_tell(pb);
301 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
303 avio_wb32(pb, 0); // size
304 ffio_wfourcc(pb, "esds");
305 avio_wb32(pb, 0); // Version
308 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
309 avio_wb16(pb, track->track_id);
310 avio_w8(pb, 0x00); // flags (= no flags)
312 // DecoderConfig descriptor
313 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
315 // Object type indication
316 if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
317 track->enc->codec_id == AV_CODEC_ID_MP3) &&
318 track->enc->sample_rate > 24000)
319 avio_w8(pb, 0x6B); // 11172-3
321 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
323 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
324 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
325 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
326 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
327 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
328 avio_w8(pb, 0x15); // flags (= Audiostream)
330 avio_w8(pb, 0x11); // flags (= Visualstream)
332 avio_wb24(pb, track->enc->rc_buffer_size >> 3); // Buffersize DB
334 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
335 if (track->enc->rc_max_rate != track->enc->rc_min_rate ||
336 track->enc->rc_min_rate == 0)
337 avio_wb32(pb, 0); // vbr
339 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
341 if (track->vos_len) {
342 // DecoderSpecific info descriptor
343 put_descr(pb, 0x05, track->vos_len);
344 avio_write(pb, track->vos_data, track->vos_len);
348 put_descr(pb, 0x06, 1);
350 return update_size(pb, pos);
353 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
355 int64_t pos = avio_tell(pb);
357 avio_wl32(pb, track->tag); // store it byteswapped
358 track->enc->codec_tag = av_bswap16(track->tag >> 16);
359 ff_put_wav_header(pb, track->enc);
360 return update_size(pb, pos);
363 static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
365 int64_t pos = avio_tell(pb);
367 ffio_wfourcc(pb, "wfex");
368 ff_put_wav_header(pb, track->enc);
369 return update_size(pb, pos);
372 static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
374 uint32_t layout_tag, bitmap;
375 int64_t pos = avio_tell(pb);
377 layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
378 track->enc->channel_layout,
381 av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
382 "lack of channel information\n");
386 avio_wb32(pb, 0); // Size
387 ffio_wfourcc(pb, "chan"); // Type
388 avio_w8(pb, 0); // Version
389 avio_wb24(pb, 0); // Flags
390 avio_wb32(pb, layout_tag); // mChannelLayoutTag
391 avio_wb32(pb, bitmap); // mChannelBitmap
392 avio_wb32(pb, 0); // mNumberChannelDescriptions
394 return update_size(pb, pos);
397 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
399 int64_t pos = avio_tell(pb);
401 avio_wb32(pb, 0); /* size */
402 ffio_wfourcc(pb, "wave");
404 avio_wb32(pb, 12); /* size */
405 ffio_wfourcc(pb, "frma");
406 avio_wl32(pb, track->tag);
408 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
409 /* useless atom needed by mplayer, ipod, not needed by quicktime */
410 avio_wb32(pb, 12); /* size */
411 ffio_wfourcc(pb, "mp4a");
413 mov_write_esds_tag(pb, track);
414 } else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
415 mov_write_amr_tag(pb, track);
416 } else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
417 mov_write_ac3_tag(pb, track);
418 } else if (track->enc->codec_id == AV_CODEC_ID_ALAC) {
419 mov_write_extradata_tag(pb, track);
420 } else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
421 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
422 mov_write_ms_tag(pb, track);
425 avio_wb32(pb, 8); /* size */
426 avio_wb32(pb, 0); /* null tag */
428 return update_size(pb, pos);
431 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
434 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
435 int unescaped_size, seq_found = 0;
436 int level = 0, interlace = 0;
437 int packet_seq = track->vc1_info.packet_seq;
438 int packet_entry = track->vc1_info.packet_entry;
439 int slices = track->vc1_info.slices;
442 if (track->start_dts == AV_NOPTS_VALUE) {
443 /* No packets written yet, vc1_info isn't authoritative yet. */
444 /* Assume inline sequence and entry headers. This will be
445 * overwritten at the end if the file is seekable. */
446 packet_seq = packet_entry = 1;
449 unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
451 return AVERROR(ENOMEM);
452 start = find_next_marker(track->vos_data, end);
453 for (next = start; next < end; start = next) {
456 next = find_next_marker(start + 4, end);
457 size = next - start - 4;
460 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
461 init_get_bits(&gb, unescaped, 8 * unescaped_size);
462 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
463 int profile = get_bits(&gb, 2);
464 if (profile != PROFILE_ADVANCED) {
466 return AVERROR(ENOSYS);
469 level = get_bits(&gb, 3);
470 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
472 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
473 skip_bits(&gb, 1); /* broadcast */
474 interlace = get_bits1(&gb);
475 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
480 return AVERROR(ENOSYS);
483 init_put_bits(&pbc, buf, 7);
484 /* VC1DecSpecStruc */
485 put_bits(&pbc, 4, 12); /* profile - advanced */
486 put_bits(&pbc, 3, level);
487 put_bits(&pbc, 1, 0); /* reserved */
488 /* VC1AdvDecSpecStruc */
489 put_bits(&pbc, 3, level);
490 put_bits(&pbc, 1, 0); /* cbr */
491 put_bits(&pbc, 6, 0); /* reserved */
492 put_bits(&pbc, 1, !interlace); /* no interlace */
493 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
494 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
495 put_bits(&pbc, 1, !slices); /* no slice code */
496 put_bits(&pbc, 1, 0); /* no bframe */
497 put_bits(&pbc, 1, 0); /* reserved */
500 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
501 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
503 put_bits32(&pbc, 0xffffffff);
505 flush_put_bits(&pbc);
512 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
514 uint8_t buf[7] = { 0 };
517 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
520 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
521 ffio_wfourcc(pb, "dvc1");
522 track->vc1_info.struct_offset = avio_tell(pb);
523 avio_write(pb, buf, sizeof(buf));
524 avio_write(pb, track->vos_data, track->vos_len);
529 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
531 avio_wb32(pb, track->vos_len + 8);
532 ffio_wfourcc(pb, "glbl");
533 avio_write(pb, track->vos_data, track->vos_len);
534 return 8 + track->vos_len;
538 * Compute flags for 'lpcm' tag.
539 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
541 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
544 case AV_CODEC_ID_PCM_F32BE:
545 case AV_CODEC_ID_PCM_F64BE:
547 case AV_CODEC_ID_PCM_F32LE:
548 case AV_CODEC_ID_PCM_F64LE:
550 case AV_CODEC_ID_PCM_U8:
552 case AV_CODEC_ID_PCM_S16BE:
553 case AV_CODEC_ID_PCM_S24BE:
554 case AV_CODEC_ID_PCM_S32BE:
556 case AV_CODEC_ID_PCM_S8:
557 case AV_CODEC_ID_PCM_S16LE:
558 case AV_CODEC_ID_PCM_S24LE:
559 case AV_CODEC_ID_PCM_S32LE:
566 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
570 if (cluster_idx >= track->entry)
573 if (cluster_idx + 1 == track->entry)
574 next_dts = track->track_duration + track->start_dts;
576 next_dts = track->cluster[cluster_idx + 1].dts;
578 return next_dts - track->cluster[cluster_idx].dts;
581 static int get_samples_per_packet(MOVTrack *track)
583 int i, first_duration;
585 /* use 1 for raw PCM */
586 if (!track->audio_vbr)
589 /* check to see if duration is constant for all clusters */
592 first_duration = get_cluster_duration(track, 0);
593 for (i = 1; i < track->entry; i++) {
594 if (get_cluster_duration(track, i) != first_duration)
597 return first_duration;
600 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
602 int64_t pos = avio_tell(pb);
604 uint32_t tag = track->tag;
606 if (track->mode == MODE_MOV) {
607 if (mov_get_lpcm_flags(track->enc->codec_id))
608 tag = AV_RL32("lpcm");
612 avio_wb32(pb, 0); /* size */
613 avio_wl32(pb, tag); // store it byteswapped
614 avio_wb32(pb, 0); /* Reserved */
615 avio_wb16(pb, 0); /* Reserved */
616 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
618 /* SoundDescription */
619 avio_wb16(pb, version); /* Version */
620 avio_wb16(pb, 0); /* Revision level */
621 avio_wb32(pb, 0); /* Reserved */
626 avio_wb16(pb, 0xfffe);
628 avio_wb32(pb, 0x00010000);
630 avio_wb64(pb, av_double2int(track->enc->sample_rate));
631 avio_wb32(pb, track->enc->channels);
632 avio_wb32(pb, 0x7F000000);
633 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
634 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
635 avio_wb32(pb, track->sample_size);
636 avio_wb32(pb, get_samples_per_packet(track));
638 /* reserved for mp4/3gp */
643 avio_wb16(pb, 0); /* packet size (= 0) */
644 avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
645 track->enc->sample_rate : 0);
646 avio_wb16(pb, 0); /* Reserved */
649 if (track->mode == MODE_MOV &&
650 (track->enc->codec_id == AV_CODEC_ID_AAC ||
651 track->enc->codec_id == AV_CODEC_ID_AC3 ||
652 track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
653 track->enc->codec_id == AV_CODEC_ID_ALAC ||
654 track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
655 track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV))
656 mov_write_wave_tag(pb, track);
657 else if (track->tag == MKTAG('m','p','4','a'))
658 mov_write_esds_tag(pb, track);
659 else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
660 mov_write_amr_tag(pb, track);
661 else if (track->enc->codec_id == AV_CODEC_ID_AC3)
662 mov_write_ac3_tag(pb, track);
663 else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
664 mov_write_extradata_tag(pb, track);
665 else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
666 mov_write_wfex_tag(pb, track);
667 else if (track->vos_len > 0)
668 mov_write_glbl_tag(pb, track);
670 if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
671 mov_write_chan_tag(pb, track);
673 return update_size(pb, pos);
676 static int mov_write_d263_tag(AVIOContext *pb)
678 avio_wb32(pb, 0xf); /* size */
679 ffio_wfourcc(pb, "d263");
680 ffio_wfourcc(pb, "FFMP");
681 avio_w8(pb, 0); /* decoder version */
682 /* FIXME use AVCodecContext level/profile, when encoder will set values */
683 avio_w8(pb, 0xa); /* level */
684 avio_w8(pb, 0); /* profile */
688 /* TODO: No idea about these values */
689 static int mov_write_svq3_tag(AVIOContext *pb)
692 ffio_wfourcc(pb, "SMI ");
693 ffio_wfourcc(pb, "SEQH");
695 avio_wb32(pb, 0xe2c0211d);
696 avio_wb32(pb, 0xc0000000);
701 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
703 int64_t pos = avio_tell(pb);
706 ffio_wfourcc(pb, "avcC");
707 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
708 return update_size(pb, pos);
711 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
713 int64_t pos = avio_tell(pb);
716 ffio_wfourcc(pb, "hvcC");
717 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
718 return update_size(pb, pos);
721 /* also used by all avid codecs (dv, imx, meridien) and their variants */
722 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
725 avio_wb32(pb, 24); /* size */
726 ffio_wfourcc(pb, "ACLR");
727 ffio_wfourcc(pb, "ACLR");
728 ffio_wfourcc(pb, "0001");
729 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
730 avio_wb32(pb, 0); /* unknown */
732 avio_wb32(pb, 24); /* size */
733 ffio_wfourcc(pb, "APRG");
734 ffio_wfourcc(pb, "APRG");
735 ffio_wfourcc(pb, "0001");
736 avio_wb32(pb, 1); /* unknown */
737 avio_wb32(pb, 0); /* unknown */
739 avio_wb32(pb, 120); /* size */
740 ffio_wfourcc(pb, "ARES");
741 ffio_wfourcc(pb, "ARES");
742 ffio_wfourcc(pb, "0001");
743 avio_wb32(pb, AV_RB32(track->vos_data + 0x28)); /* dnxhd cid, some id ? */
744 avio_wb32(pb, track->enc->width);
745 /* values below are based on samples created with quicktime and avid codecs */
746 if (track->vos_data[5] & 2) { // interlaced
747 avio_wb32(pb, track->enc->height / 2);
748 avio_wb32(pb, 2); /* unknown */
749 avio_wb32(pb, 0); /* unknown */
750 avio_wb32(pb, 4); /* unknown */
752 avio_wb32(pb, track->enc->height);
753 avio_wb32(pb, 1); /* unknown */
754 avio_wb32(pb, 0); /* unknown */
755 if (track->enc->height == 1080)
756 avio_wb32(pb, 5); /* unknown */
758 avio_wb32(pb, 6); /* unknown */
761 for (i = 0; i < 10; i++)
764 /* extra padding for stsd needed */
769 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
771 int tag = track->enc->codec_tag;
773 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
776 if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
777 else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
778 else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
779 else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
780 else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
781 else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
782 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
783 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
784 else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
789 static const AVCodecTag codec_ipod_tags[] = {
790 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
791 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
792 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
793 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
794 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
795 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
796 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
797 { AV_CODEC_ID_NONE, 0 },
800 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
802 int tag = track->enc->codec_tag;
804 // keep original tag for subs, ipod supports both formats
805 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
806 (tag == MKTAG('t', 'x', '3', 'g') ||
807 tag == MKTAG('t', 'e', 'x', 't'))))
808 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
810 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
811 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
812 "Quicktime/Ipod might not play the file\n");
817 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
821 if (track->enc->width == 720) /* SD */
822 if (track->enc->height == 480) /* NTSC */
823 if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
824 else tag = MKTAG('d','v','c',' ');
825 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
826 else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
827 else tag = MKTAG('d','v','p','p');
828 else if (track->enc->height == 720) /* HD 720 line */
829 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
830 else tag = MKTAG('d','v','h','p');
831 else if (track->enc->height == 1080) /* HD 1080 line */
832 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
833 else tag = MKTAG('d','v','h','6');
835 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
842 static const struct {
843 enum AVPixelFormat pix_fmt;
846 } mov_pix_fmt_tags[] = {
847 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
848 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
849 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
850 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
851 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
852 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
853 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
854 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
855 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
856 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
857 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
858 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
859 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
860 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
863 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
865 int tag = track->enc->codec_tag;
868 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
869 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
870 tag = mov_pix_fmt_tags[i].tag;
871 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
879 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
881 int tag = track->enc->codec_tag;
883 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
884 (track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
885 track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
886 track->enc->codec_id == AV_CODEC_ID_H263 ||
887 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
888 if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
889 tag = mov_get_dv_codec_tag(s, track);
890 else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
891 tag = mov_get_rawvideo_codec_tag(s, track);
892 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
893 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
894 if (!tag) { // if no mac fcc found, try with Microsoft tags
895 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
897 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
898 "the file may be unplayable!\n");
900 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
901 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
902 if (!tag) { // if no mac fcc found, try with Microsoft tags
903 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
905 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
906 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
907 "the file may be unplayable!\n");
910 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
911 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
917 static const AVCodecTag codec_3gp_tags[] = {
918 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
919 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
920 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
921 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
922 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
923 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
924 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
925 { AV_CODEC_ID_NONE, 0 },
928 static const AVCodecTag codec_f4v_tags[] = {
929 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
930 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
931 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
932 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
933 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
934 { AV_CODEC_ID_NONE, 0 },
937 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
941 if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
942 tag = mp4_get_codec_tag(s, track);
943 else if (track->mode == MODE_ISM) {
944 tag = mp4_get_codec_tag(s, track);
945 if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
946 tag = MKTAG('w', 'm', 'a', ' ');
947 } else if (track->mode == MODE_IPOD)
948 tag = ipod_get_codec_tag(s, track);
949 else if (track->mode & MODE_3GP)
950 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
951 else if (track->mode == MODE_F4V)
952 tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
954 tag = mov_get_codec_tag(s, track);
960 * Needed to make file play in iPods running newest firmware
961 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
963 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
966 ffio_wfourcc(pb, "uuid");
967 avio_wb32(pb, 0x6b6840f2);
968 avio_wb32(pb, 0x5f244fc5);
969 avio_wb32(pb, 0xba39a51b);
970 avio_wb32(pb, 0xcf0323f3);
975 static const uint16_t fiel_data[] = {
976 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
979 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
981 unsigned mov_field_order = 0;
982 if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
983 mov_field_order = fiel_data[track->enc->field_order];
987 ffio_wfourcc(pb, "fiel");
988 avio_wb16(pb, mov_field_order);
992 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
994 int64_t pos = avio_tell(pb);
995 avio_wb32(pb, 0); /* size */
996 avio_wl32(pb, track->tag); // store it byteswapped
997 avio_wb32(pb, 0); /* Reserved */
998 avio_wb16(pb, 0); /* Reserved */
999 avio_wb16(pb, 1); /* Data-reference index */
1001 if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1002 mov_write_esds_tag(pb, track);
1003 else if (track->enc->extradata_size)
1004 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1006 return update_size(pb, pos);
1009 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1012 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
1013 track->enc->sample_aspect_ratio.den, INT_MAX);
1016 ffio_wfourcc(pb, "pasp");
1017 avio_wb32(pb, sar.num);
1018 avio_wb32(pb, sar.den);
1022 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
1024 AVDictionaryEntry *encoder;
1025 int64_t pos = avio_tell(pb);
1026 char compressor_name[32] = { 0 };
1028 avio_wb32(pb, 0); /* size */
1029 avio_wl32(pb, track->tag); // store it byteswapped
1030 avio_wb32(pb, 0); /* Reserved */
1031 avio_wb16(pb, 0); /* Reserved */
1032 avio_wb16(pb, 1); /* Data-reference index */
1034 avio_wb16(pb, 0); /* Codec stream version */
1035 avio_wb16(pb, 0); /* Codec stream revision (=0) */
1036 if (track->mode == MODE_MOV) {
1037 ffio_wfourcc(pb, "FFMP"); /* Vendor */
1038 if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
1039 avio_wb32(pb, 0); /* Temporal Quality */
1040 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1042 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1043 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1046 avio_wb32(pb, 0); /* Reserved */
1047 avio_wb32(pb, 0); /* Reserved */
1048 avio_wb32(pb, 0); /* Reserved */
1050 avio_wb16(pb, track->enc->width); /* Video width */
1051 avio_wb16(pb, track->height); /* Video height */
1052 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1053 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1054 avio_wb32(pb, 0); /* Data size (= 0) */
1055 avio_wb16(pb, 1); /* Frame count (= 1) */
1057 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1058 if (track->mode == MODE_MOV &&
1059 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0)))
1060 av_strlcpy(compressor_name, encoder->value, 32);
1061 avio_w8(pb, strlen(compressor_name));
1062 avio_write(pb, compressor_name, 31);
1064 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
1065 avio_wb16(pb, track->enc->bits_per_coded_sample);
1067 avio_wb16(pb, 0x18); /* Reserved */
1068 avio_wb16(pb, 0xffff); /* Reserved */
1069 if (track->tag == MKTAG('m','p','4','v'))
1070 mov_write_esds_tag(pb, track);
1071 else if (track->enc->codec_id == AV_CODEC_ID_H263)
1072 mov_write_d263_tag(pb);
1073 else if (track->enc->codec_id == AV_CODEC_ID_SVQ3)
1074 mov_write_svq3_tag(pb);
1075 else if (track->enc->codec_id == AV_CODEC_ID_DNXHD)
1076 mov_write_avid_tag(pb, track);
1077 else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
1078 mov_write_hvcc_tag(pb, track);
1079 else if (track->enc->codec_id == AV_CODEC_ID_H264) {
1080 mov_write_avcc_tag(pb, track);
1081 if (track->mode == MODE_IPOD)
1082 mov_write_uuid_tag_ipod(pb);
1083 } else if (track->enc->field_order != AV_FIELD_UNKNOWN)
1084 mov_write_fiel_tag(pb, track);
1085 else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
1086 mov_write_dvc1_tag(pb, track);
1087 else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
1088 track->enc->codec_id == AV_CODEC_ID_VP6A) {
1089 /* Don't write any potential extradata here - the cropping
1090 * is signalled via the normal width/height fields. */
1091 } else if (track->vos_len > 0)
1092 mov_write_glbl_tag(pb, track);
1094 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
1095 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
1096 mov_write_pasp_tag(pb, track);
1099 return update_size(pb, pos);
1102 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
1104 int64_t pos = avio_tell(pb);
1105 avio_wb32(pb, 0); /* size */
1106 ffio_wfourcc(pb, "rtp ");
1107 avio_wb32(pb, 0); /* Reserved */
1108 avio_wb16(pb, 0); /* Reserved */
1109 avio_wb16(pb, 1); /* Data-reference index */
1111 avio_wb16(pb, 1); /* Hint track version */
1112 avio_wb16(pb, 1); /* Highest compatible version */
1113 avio_wb32(pb, track->max_packet_size); /* Max packet size */
1115 avio_wb32(pb, 12); /* size */
1116 ffio_wfourcc(pb, "tims");
1117 avio_wb32(pb, track->timescale);
1119 return update_size(pb, pos);
1122 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
1124 int64_t pos = avio_tell(pb);
1126 avio_wb32(pb, 0); /* size */
1127 ffio_wfourcc(pb, "tmcd"); /* Data format */
1128 avio_wb32(pb, 0); /* Reserved */
1129 avio_wb32(pb, 1); /* Data reference index */
1130 if (track->enc->extradata_size)
1131 avio_write(pb, track->enc->extradata, track->enc->extradata_size);
1132 return update_size(pb, pos);
1135 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
1137 int64_t pos = avio_tell(pb);
1138 avio_wb32(pb, 0); /* size */
1139 ffio_wfourcc(pb, "stsd");
1140 avio_wb32(pb, 0); /* version & flags */
1141 avio_wb32(pb, 1); /* entry count */
1142 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1143 mov_write_video_tag(pb, track);
1144 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1145 mov_write_audio_tag(pb, track);
1146 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
1147 mov_write_subtitle_tag(pb, track);
1148 else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
1149 mov_write_rtp_tag(pb, track);
1150 else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
1151 mov_write_tmcd_tag(pb, track);
1152 return update_size(pb, pos);
1155 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
1157 MOVStts *ctts_entries;
1158 uint32_t entries = 0;
1162 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
1163 ctts_entries[0].count = 1;
1164 ctts_entries[0].duration = track->cluster[0].cts;
1165 for (i = 1; i < track->entry; i++) {
1166 if (track->cluster[i].cts == ctts_entries[entries].duration) {
1167 ctts_entries[entries].count++; /* compress */
1170 ctts_entries[entries].duration = track->cluster[i].cts;
1171 ctts_entries[entries].count = 1;
1174 entries++; /* last one */
1175 atom_size = 16 + (entries * 8);
1176 avio_wb32(pb, atom_size); /* size */
1177 ffio_wfourcc(pb, "ctts");
1178 avio_wb32(pb, 0); /* version & flags */
1179 avio_wb32(pb, entries); /* entry count */
1180 for (i = 0; i < entries; i++) {
1181 avio_wb32(pb, ctts_entries[i].count);
1182 avio_wb32(pb, ctts_entries[i].duration);
1184 av_free(ctts_entries);
1188 /* Time to sample atom */
1189 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
1191 MOVStts *stts_entries;
1192 uint32_t entries = -1;
1196 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
1197 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
1198 stts_entries[0].count = track->sample_count;
1199 stts_entries[0].duration = 1;
1202 stts_entries = track->entry ?
1203 av_malloc(track->entry * sizeof(*stts_entries)) : /* worst case */
1205 for (i = 0; i < track->entry; i++) {
1206 int duration = get_cluster_duration(track, i);
1207 if (i && duration == stts_entries[entries].duration) {
1208 stts_entries[entries].count++; /* compress */
1211 stts_entries[entries].duration = duration;
1212 stts_entries[entries].count = 1;
1215 entries++; /* last one */
1217 atom_size = 16 + (entries * 8);
1218 avio_wb32(pb, atom_size); /* size */
1219 ffio_wfourcc(pb, "stts");
1220 avio_wb32(pb, 0); /* version & flags */
1221 avio_wb32(pb, entries); /* entry count */
1222 for (i = 0; i < entries; i++) {
1223 avio_wb32(pb, stts_entries[i].count);
1224 avio_wb32(pb, stts_entries[i].duration);
1226 av_free(stts_entries);
1230 static int mov_write_dref_tag(AVIOContext *pb)
1232 avio_wb32(pb, 28); /* size */
1233 ffio_wfourcc(pb, "dref");
1234 avio_wb32(pb, 0); /* version & flags */
1235 avio_wb32(pb, 1); /* entry count */
1237 avio_wb32(pb, 0xc); /* size */
1238 ffio_wfourcc(pb, "url ");
1239 avio_wb32(pb, 1); /* version & flags */
1244 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
1246 int64_t pos = avio_tell(pb);
1247 avio_wb32(pb, 0); /* size */
1248 ffio_wfourcc(pb, "stbl");
1249 mov_write_stsd_tag(pb, track);
1250 mov_write_stts_tag(pb, track);
1251 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1252 track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
1253 track->has_keyframes && track->has_keyframes < track->entry)
1254 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1255 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1256 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1257 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1258 track->flags & MOV_TRACK_CTTS)
1259 mov_write_ctts_tag(pb, track);
1260 mov_write_stsc_tag(pb, track);
1261 mov_write_stsz_tag(pb, track);
1262 mov_write_stco_tag(pb, track);
1263 return update_size(pb, pos);
1266 static int mov_write_dinf_tag(AVIOContext *pb)
1268 int64_t pos = avio_tell(pb);
1269 avio_wb32(pb, 0); /* size */
1270 ffio_wfourcc(pb, "dinf");
1271 mov_write_dref_tag(pb);
1272 return update_size(pb, pos);
1275 static int mov_write_nmhd_tag(AVIOContext *pb)
1278 ffio_wfourcc(pb, "nmhd");
1283 static int mov_write_gmhd_tag(AVIOContext *pb)
1285 avio_wb32(pb, 0x20); /* size */
1286 ffio_wfourcc(pb, "gmhd");
1287 avio_wb32(pb, 0x18); /* gmin size */
1288 ffio_wfourcc(pb, "gmin");/* generic media info */
1289 avio_wb32(pb, 0); /* version & flags */
1290 avio_wb16(pb, 0x40); /* graphics mode = */
1291 avio_wb16(pb, 0x8000); /* opColor (r?) */
1292 avio_wb16(pb, 0x8000); /* opColor (g?) */
1293 avio_wb16(pb, 0x8000); /* opColor (b?) */
1294 avio_wb16(pb, 0); /* balance */
1295 avio_wb16(pb, 0); /* reserved */
1299 static int mov_write_smhd_tag(AVIOContext *pb)
1301 avio_wb32(pb, 16); /* size */
1302 ffio_wfourcc(pb, "smhd");
1303 avio_wb32(pb, 0); /* version & flags */
1304 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1305 avio_wb16(pb, 0); /* reserved */
1309 static int mov_write_vmhd_tag(AVIOContext *pb)
1311 avio_wb32(pb, 0x14); /* size (always 0x14) */
1312 ffio_wfourcc(pb, "vmhd");
1313 avio_wb32(pb, 0x01); /* version & flags */
1314 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1318 static int is_clcp_track(MOVTrack *track)
1320 return track->tag == MKTAG('c','7','0','8') ||
1321 track->tag == MKTAG('c','6','0','8');
1324 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1326 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1327 int64_t pos = avio_tell(pb);
1331 descr = "DataHandler";
1334 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1335 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1337 descr = "VideoHandler";
1338 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1340 descr = "SoundHandler";
1341 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1342 if (track->tag == MKTAG('t','x','3','g')) {
1344 } else if (track->tag == MKTAG('m','p','4','s')) {
1346 } else if (is_clcp_track(track)) {
1351 descr = "SubtitleHandler";
1352 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1354 descr = "HintHandler";
1355 } else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
1357 descr = "TimeCodeHandler";
1360 av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
1361 track->enc->codec_tag);
1363 av_log(track->enc, AV_LOG_WARNING,
1364 "Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
1365 tag_buf, track->enc->codec_tag);
1368 // hdlr.name is used by some players to identify the content title
1369 // of the track. So if an alternate handler description is
1370 // specified, use it.
1371 AVDictionaryEntry *t;
1372 t = av_dict_get(track->st->metadata, "handler", NULL, 0);
1373 if (t && utf8len(t->value))
1378 avio_wb32(pb, 0); /* size */
1379 ffio_wfourcc(pb, "hdlr");
1380 avio_wb32(pb, 0); /* Version & flags */
1381 avio_write(pb, hdlr, 4); /* handler */
1382 ffio_wfourcc(pb, hdlr_type); /* handler type */
1383 avio_wb32(pb, 0); /* reserved */
1384 avio_wb32(pb, 0); /* reserved */
1385 avio_wb32(pb, 0); /* reserved */
1386 if (!track || track->mode == MODE_MOV)
1387 avio_w8(pb, strlen(descr)); /* pascal string */
1388 avio_write(pb, descr, strlen(descr)); /* handler description */
1389 if (track && track->mode != MODE_MOV)
1390 avio_w8(pb, 0); /* c string */
1391 return update_size(pb, pos);
1394 static int mov_write_hmhd_tag(AVIOContext *pb)
1396 /* This atom must be present, but leaving the values at zero
1397 * seems harmless. */
1398 avio_wb32(pb, 28); /* size */
1399 ffio_wfourcc(pb, "hmhd");
1400 avio_wb32(pb, 0); /* version, flags */
1401 avio_wb16(pb, 0); /* maxPDUsize */
1402 avio_wb16(pb, 0); /* avgPDUsize */
1403 avio_wb32(pb, 0); /* maxbitrate */
1404 avio_wb32(pb, 0); /* avgbitrate */
1405 avio_wb32(pb, 0); /* reserved */
1409 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1411 int64_t pos = avio_tell(pb);
1412 avio_wb32(pb, 0); /* size */
1413 ffio_wfourcc(pb, "minf");
1414 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1415 mov_write_vmhd_tag(pb);
1416 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1417 mov_write_smhd_tag(pb);
1418 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1419 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
1420 mov_write_gmhd_tag(pb);
1422 mov_write_nmhd_tag(pb);
1424 } else if (track->tag == MKTAG('r','t','p',' ')) {
1425 mov_write_hmhd_tag(pb);
1426 } else if (track->tag == MKTAG('t','m','c','d')) {
1427 mov_write_gmhd_tag(pb);
1429 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1430 mov_write_hdlr_tag(pb, NULL);
1431 mov_write_dinf_tag(pb);
1432 mov_write_stbl_tag(pb, track);
1433 return update_size(pb, pos);
1436 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1438 int version = track->track_duration < INT32_MAX ? 0 : 1;
1440 if (track->mode == MODE_ISM)
1443 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1444 ffio_wfourcc(pb, "mdhd");
1445 avio_w8(pb, version);
1446 avio_wb24(pb, 0); /* flags */
1448 avio_wb64(pb, track->time);
1449 avio_wb64(pb, track->time);
1451 avio_wb32(pb, track->time); /* creation time */
1452 avio_wb32(pb, track->time); /* modification time */
1454 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1456 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1458 (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
1459 avio_wb16(pb, track->language); /* language */
1460 avio_wb16(pb, 0); /* reserved (quality) */
1462 if (version != 0 && track->mode == MODE_MOV) {
1463 av_log(NULL, AV_LOG_ERROR,
1464 "FATAL error, file duration too long for timebase, this file will not be\n"
1465 "playable with quicktime. Choose a different timebase or a different\n"
1466 "container format\n");
1472 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1474 int64_t pos = avio_tell(pb);
1475 avio_wb32(pb, 0); /* size */
1476 ffio_wfourcc(pb, "mdia");
1477 mov_write_mdhd_tag(pb, track);
1478 mov_write_hdlr_tag(pb, track);
1479 mov_write_minf_tag(pb, track);
1480 return update_size(pb, pos);
1483 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
1484 MOVTrack *track, AVStream *st)
1486 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1487 track->timescale, AV_ROUND_UP);
1488 int version = duration < INT32_MAX ? 0 : 1;
1489 int flags = MOV_TKHD_FLAG_IN_MOVIE;
1494 if (mov->per_stream_grouping)
1497 group = st->codec->codec_type;
1500 if (track->flags & MOV_TRACK_ENABLED)
1501 flags |= MOV_TKHD_FLAG_ENABLED;
1503 if (track->mode == MODE_ISM)
1506 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1507 ffio_wfourcc(pb, "tkhd");
1508 avio_w8(pb, version);
1509 avio_wb24(pb, flags);
1511 avio_wb64(pb, track->time);
1512 avio_wb64(pb, track->time);
1514 avio_wb32(pb, track->time); /* creation time */
1515 avio_wb32(pb, track->time); /* modification time */
1517 avio_wb32(pb, track->track_id); /* track-id */
1518 avio_wb32(pb, 0); /* reserved */
1520 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
1522 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1524 avio_wb32(pb, 0); /* reserved */
1525 avio_wb32(pb, 0); /* reserved */
1526 avio_wb16(pb, 0); /* layer */
1527 avio_wb16(pb, group); /* alternate group) */
1528 /* Volume, only for audio */
1529 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1530 avio_wb16(pb, 0x0100);
1533 avio_wb16(pb, 0); /* reserved */
1535 /* Matrix structure */
1536 avio_wb32(pb, 0x00010000); /* reserved */
1537 avio_wb32(pb, 0x0); /* reserved */
1538 avio_wb32(pb, 0x0); /* reserved */
1539 avio_wb32(pb, 0x0); /* reserved */
1540 avio_wb32(pb, 0x00010000); /* reserved */
1541 avio_wb32(pb, 0x0); /* reserved */
1542 avio_wb32(pb, 0x0); /* reserved */
1543 avio_wb32(pb, 0x0); /* reserved */
1544 avio_wb32(pb, 0x40000000); /* reserved */
1546 /* Track width and height, for visual only */
1547 if (st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1548 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1549 if (track->mode == MODE_MOV) {
1550 avio_wb32(pb, track->enc->width << 16);
1551 avio_wb32(pb, track->height << 16);
1553 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1554 if (!sample_aspect_ratio || track->height != track->enc->height)
1555 sample_aspect_ratio = 1;
1556 avio_wb32(pb, sample_aspect_ratio * track->enc->width * 0x10000);
1557 avio_wb32(pb, track->height * 0x10000);
1566 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1568 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1569 track->enc->sample_aspect_ratio.den);
1571 int64_t pos = avio_tell(pb);
1573 avio_wb32(pb, 0); /* size */
1574 ffio_wfourcc(pb, "tapt");
1577 ffio_wfourcc(pb, "clef");
1579 avio_wb32(pb, width << 16);
1580 avio_wb32(pb, track->enc->height << 16);
1583 ffio_wfourcc(pb, "prof");
1585 avio_wb32(pb, width << 16);
1586 avio_wb32(pb, track->enc->height << 16);
1589 ffio_wfourcc(pb, "enof");
1591 avio_wb32(pb, track->enc->width << 16);
1592 avio_wb32(pb, track->enc->height << 16);
1594 return update_size(pb, pos);
1597 // This box seems important for the psp playback ... without it the movie seems to hang
1598 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
1601 int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
1602 track->timescale, AV_ROUND_UP);
1603 int version = duration < INT32_MAX ? 0 : 1;
1604 int entry_size, entry_count, size;
1605 int64_t delay, start_ct = track->cluster[0].cts;
1606 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
1607 track->timescale, AV_ROUND_DOWN);
1608 version |= delay < INT32_MAX ? 0 : 1;
1610 entry_size = (version == 1) ? 20 : 12;
1611 entry_count = 1 + (delay > 0);
1612 size = 24 + entry_count * entry_size;
1614 /* write the atom data */
1615 avio_wb32(pb, size);
1616 ffio_wfourcc(pb, "edts");
1617 avio_wb32(pb, size - 8);
1618 ffio_wfourcc(pb, "elst");
1619 avio_w8(pb, version);
1620 avio_wb24(pb, 0); /* flags */
1622 avio_wb32(pb, entry_count);
1623 if (delay > 0) { /* add an empty edit to delay presentation */
1624 /* In the positive delay case, the delay includes the cts
1625 * offset, and the second edit list entry below trims out
1626 * the same amount from the actual content. This makes sure
1627 * that the offsetted last sample is included in the edit
1628 * list duration as well. */
1630 avio_wb64(pb, delay);
1633 avio_wb32(pb, delay);
1636 avio_wb32(pb, 0x00010000);
1638 /* Avoid accidentally ending up with start_ct = -1 which has got a
1639 * special meaning. Normally start_ct should end up positive or zero
1640 * here, but use FFMIN in case dts is a a small positive integer
1641 * rounded to 0 when represented in MOV_TIMESCALE units. */
1642 start_ct = -FFMIN(track->cluster[0].dts, 0);
1643 /* Note, this delay is calculated from the pts of the first sample,
1644 * ensuring that we don't reduce the duration for cases with
1649 /* For fragmented files, we don't know the full length yet. Setting
1650 * duration to 0 allows us to only specify the offset, including
1651 * the rest of the content (from all future fragments) without specifying
1652 * an explicit duration. */
1653 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
1658 avio_wb64(pb, duration);
1659 avio_wb64(pb, start_ct);
1661 avio_wb32(pb, duration);
1662 avio_wb32(pb, start_ct);
1664 avio_wb32(pb, 0x00010000);
1668 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1670 avio_wb32(pb, 20); // size
1671 ffio_wfourcc(pb, "tref");
1672 avio_wb32(pb, 12); // size (subatom)
1673 avio_wl32(pb, track->tref_tag);
1674 avio_wb32(pb, track->tref_id);
1678 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
1679 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1681 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1682 ffio_wfourcc(pb, "uuid");
1683 ffio_wfourcc(pb, "USMT");
1684 avio_wb32(pb, 0x21d24fce);
1685 avio_wb32(pb, 0xbb88695c);
1686 avio_wb32(pb, 0xfac9c740);
1687 avio_wb32(pb, 0x1c); // another size here!
1688 ffio_wfourcc(pb, "MTDT");
1689 avio_wb32(pb, 0x00010012);
1690 avio_wb32(pb, 0x0a);
1691 avio_wb32(pb, 0x55c40000);
1697 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
1699 AVFormatContext *ctx = track->rtp_ctx;
1700 char buf[1000] = "";
1703 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
1704 NULL, NULL, 0, 0, ctx);
1705 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
1708 avio_wb32(pb, len + 24);
1709 ffio_wfourcc(pb, "udta");
1710 avio_wb32(pb, len + 16);
1711 ffio_wfourcc(pb, "hnti");
1712 avio_wb32(pb, len + 8);
1713 ffio_wfourcc(pb, "sdp ");
1714 avio_write(pb, buf, len);
1718 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
1719 const char *tag, const char *str)
1721 int64_t pos = avio_tell(pb);
1722 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
1723 if (!t || !utf8len(t->value))
1726 avio_wb32(pb, 0); /* size */
1727 ffio_wfourcc(pb, tag); /* type */
1728 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
1729 return update_size(pb, pos);
1732 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1735 AVIOContext *pb_buf;
1739 if (!st || mov->fc->flags & AVFMT_FLAG_BITEXACT)
1742 ret = avio_open_dyn_buf(&pb_buf);
1746 if (mov->mode & MODE_MP4)
1747 mov_write_track_metadata(pb_buf, st, "name", "title");
1749 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
1750 avio_wb32(pb, size + 8);
1751 ffio_wfourcc(pb, "udta");
1752 avio_write(pb, buf, size);
1759 static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
1760 MOVTrack *track, AVStream *st)
1762 int64_t pos = avio_tell(pb);
1763 avio_wb32(pb, 0); /* size */
1764 ffio_wfourcc(pb, "trak");
1765 mov_write_tkhd_tag(pb, mov, track, st);
1766 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
1767 (track->entry && track->cluster[0].dts) ||
1768 is_clcp_track(track)) {
1769 mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box
1771 if (track->tref_tag)
1772 mov_write_tref_tag(pb, track);
1773 mov_write_mdia_tag(pb, track);
1774 if (track->mode == MODE_PSP)
1775 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
1776 if (track->tag == MKTAG('r','t','p',' '))
1777 mov_write_udta_sdp(pb, track);
1778 if (track->mode == MODE_MOV) {
1779 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1780 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1781 if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
1782 mov_write_tapt_tag(pb, track);
1785 if (is_clcp_track(track)) {
1786 mov_write_tapt_tag(pb, track);
1789 mov_write_track_udta_tag(pb, mov, st);
1790 return update_size(pb, pos);
1793 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1795 int i, has_audio = 0, has_video = 0;
1796 int64_t pos = avio_tell(pb);
1797 int audio_profile = mov->iods_audio_profile;
1798 int video_profile = mov->iods_video_profile;
1799 for (i = 0; i < mov->nb_streams; i++) {
1800 if (mov->tracks[i].entry > 0) {
1801 has_audio |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_AUDIO;
1802 has_video |= mov->tracks[i].enc->codec_type == AVMEDIA_TYPE_VIDEO;
1805 if (audio_profile < 0)
1806 audio_profile = 0xFF - has_audio;
1807 if (video_profile < 0)
1808 video_profile = 0xFF - has_video;
1809 avio_wb32(pb, 0x0); /* size */
1810 ffio_wfourcc(pb, "iods");
1811 avio_wb32(pb, 0); /* version & flags */
1812 put_descr(pb, 0x10, 7);
1813 avio_wb16(pb, 0x004f);
1816 avio_w8(pb, audio_profile);
1817 avio_w8(pb, video_profile);
1819 return update_size(pb, pos);
1822 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
1824 avio_wb32(pb, 0x20); /* size */
1825 ffio_wfourcc(pb, "trex");
1826 avio_wb32(pb, 0); /* version & flags */
1827 avio_wb32(pb, track->track_id); /* track ID */
1828 avio_wb32(pb, 1); /* default sample description index */
1829 avio_wb32(pb, 0); /* default sample duration */
1830 avio_wb32(pb, 0); /* default sample size */
1831 avio_wb32(pb, 0); /* default sample flags */
1835 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
1837 int64_t pos = avio_tell(pb);
1839 avio_wb32(pb, 0x0); /* size */
1840 ffio_wfourcc(pb, "mvex");
1841 for (i = 0; i < mov->nb_streams; i++)
1842 mov_write_trex_tag(pb, &mov->tracks[i]);
1843 return update_size(pb, pos);
1846 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1848 int max_track_id = 1, i;
1849 int64_t max_track_len_temp, max_track_len = 0;
1852 for (i = 0; i < mov->nb_streams; i++) {
1853 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
1854 max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
1856 mov->tracks[i].timescale,
1858 if (max_track_len < max_track_len_temp)
1859 max_track_len = max_track_len_temp;
1860 if (max_track_id < mov->tracks[i].track_id)
1861 max_track_id = mov->tracks[i].track_id;
1865 version = max_track_len < UINT32_MAX ? 0 : 1;
1866 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1867 ffio_wfourcc(pb, "mvhd");
1868 avio_w8(pb, version);
1869 avio_wb24(pb, 0); /* flags */
1871 avio_wb64(pb, mov->time);
1872 avio_wb64(pb, mov->time);
1874 avio_wb32(pb, mov->time); /* creation time */
1875 avio_wb32(pb, mov->time); /* modification time */
1877 avio_wb32(pb, MOV_TIMESCALE);
1878 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
1880 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1881 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1882 avio_wb16(pb, 0); /* reserved */
1883 avio_wb32(pb, 0); /* reserved */
1884 avio_wb32(pb, 0); /* reserved */
1886 /* Matrix structure */
1887 avio_wb32(pb, 0x00010000); /* reserved */
1888 avio_wb32(pb, 0x0); /* reserved */
1889 avio_wb32(pb, 0x0); /* reserved */
1890 avio_wb32(pb, 0x0); /* reserved */
1891 avio_wb32(pb, 0x00010000); /* reserved */
1892 avio_wb32(pb, 0x0); /* reserved */
1893 avio_wb32(pb, 0x0); /* reserved */
1894 avio_wb32(pb, 0x0); /* reserved */
1895 avio_wb32(pb, 0x40000000); /* reserved */
1897 avio_wb32(pb, 0); /* reserved (preview time) */
1898 avio_wb32(pb, 0); /* reserved (preview duration) */
1899 avio_wb32(pb, 0); /* reserved (poster time) */
1900 avio_wb32(pb, 0); /* reserved (selection time) */
1901 avio_wb32(pb, 0); /* reserved (selection duration) */
1902 avio_wb32(pb, 0); /* reserved (current time) */
1903 avio_wb32(pb, max_track_id + 1); /* Next track id */
1907 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1910 avio_wb32(pb, 33); /* size */
1911 ffio_wfourcc(pb, "hdlr");
1914 ffio_wfourcc(pb, "mdir");
1915 ffio_wfourcc(pb, "appl");
1922 /* helper function to write a data tag with the specified string as data */
1923 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1926 int size = 16 + strlen(data);
1927 avio_wb32(pb, size); /* size */
1928 ffio_wfourcc(pb, "data");
1931 avio_write(pb, data, strlen(data));
1935 lang = ff_mov_iso639_to_lang("und", 1);
1936 avio_wb16(pb, strlen(data)); /* string length */
1937 avio_wb16(pb, lang);
1938 avio_write(pb, data, strlen(data));
1939 return strlen(data) + 4;
1943 static int mov_write_string_tag(AVIOContext *pb, const char *name,
1944 const char *value, int lang, int long_style)
1947 if (value && value[0]) {
1948 int64_t pos = avio_tell(pb);
1949 avio_wb32(pb, 0); /* size */
1950 ffio_wfourcc(pb, name);
1951 mov_write_string_data_tag(pb, value, lang, long_style);
1952 size = update_size(pb, pos);
1957 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1958 const char *name, const char *tag,
1961 int l, lang = 0, len, len2;
1962 AVDictionaryEntry *t, *t2 = NULL;
1965 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
1968 len = strlen(t->key);
1969 snprintf(tag2, sizeof(tag2), "%s-", tag);
1970 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
1971 len2 = strlen(t2->key);
1972 if (len2 == len + 4 && !strcmp(t->value, t2->value)
1973 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
1978 return mov_write_string_tag(pb, name, t->value, lang, long_style);
1981 /* iTunes track number */
1982 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1985 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);
1986 int size = 0, track = t ? atoi(t->value) : 0;
1988 avio_wb32(pb, 32); /* size */
1989 ffio_wfourcc(pb, "trkn");
1990 avio_wb32(pb, 24); /* size */
1991 ffio_wfourcc(pb, "data");
1992 avio_wb32(pb, 0); // 8 bytes empty
1994 avio_wb16(pb, 0); // empty
1995 avio_wb16(pb, track); // track number
1996 avio_wb16(pb, 0); // total track number
1997 avio_wb16(pb, 0); // empty
2003 /* iTunes meta data list */
2004 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
2007 int64_t pos = avio_tell(pb);
2008 avio_wb32(pb, 0); /* size */
2009 ffio_wfourcc(pb, "ilst");
2010 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
2011 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
2012 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
2013 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
2014 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
2015 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
2016 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1))
2017 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
2018 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
2019 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
2020 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
2021 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
2022 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
2023 mov_write_string_metadata(s, pb, "desc", "description",1);
2024 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
2025 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
2026 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
2027 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
2028 mov_write_trkn_tag(pb, mov, s);
2029 return update_size(pb, pos);
2032 /* iTunes meta data tag */
2033 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
2037 int64_t pos = avio_tell(pb);
2038 avio_wb32(pb, 0); /* size */
2039 ffio_wfourcc(pb, "meta");
2041 mov_write_itunes_hdlr_tag(pb, mov, s);
2042 mov_write_ilst_tag(pb, mov, s);
2043 size = update_size(pb, pos);
2047 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
2051 GET_UTF8(val, *b++, return -1;)
2054 avio_wb16(pb, 0x00);
2058 static uint16_t language_code(const char *str)
2060 return (((str[0] - 0x60) & 0x1F) << 10) +
2061 (((str[1] - 0x60) & 0x1F) << 5) +
2062 (( str[2] - 0x60) & 0x1F);
2065 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
2066 const char *tag, const char *str)
2068 int64_t pos = avio_tell(pb);
2069 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
2070 if (!t || !utf8len(t->value))
2072 avio_wb32(pb, 0); /* size */
2073 ffio_wfourcc(pb, tag); /* type */
2074 avio_wb32(pb, 0); /* version + flags */
2075 if (!strcmp(tag, "yrrc"))
2076 avio_wb16(pb, atoi(t->value));
2078 avio_wb16(pb, language_code("eng")); /* language */
2079 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
2080 if (!strcmp(tag, "albm") &&
2081 (t = av_dict_get(s->metadata, "track", NULL, 0)))
2082 avio_w8(pb, atoi(t->value));
2084 return update_size(pb, pos);
2087 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
2089 int64_t pos = avio_tell(pb);
2090 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
2092 avio_wb32(pb, 0); // size
2093 ffio_wfourcc(pb, "chpl");
2094 avio_wb32(pb, 0x01000000); // version + flags
2095 avio_wb32(pb, 0); // unknown
2096 avio_w8(pb, nb_chapters);
2098 for (i = 0; i < nb_chapters; i++) {
2099 AVChapter *c = s->chapters[i];
2100 AVDictionaryEntry *t;
2101 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
2103 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
2104 int len = FFMIN(strlen(t->value), 255);
2106 avio_write(pb, t->value, len);
2110 return update_size(pb, pos);
2113 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
2116 AVIOContext *pb_buf;
2120 if (s->flags & AVFMT_FLAG_BITEXACT)
2123 ret = avio_open_dyn_buf(&pb_buf);
2127 if (mov->mode & MODE_3GP) {
2128 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
2129 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
2130 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
2131 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
2132 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
2133 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
2134 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
2135 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
2136 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
2137 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
2138 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
2139 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
2140 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
2141 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
2142 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
2143 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
2144 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
2145 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
2147 /* iTunes meta data */
2148 mov_write_meta_tag(pb_buf, mov, s);
2151 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
2152 mov_write_chpl_tag(pb_buf, s);
2154 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
2155 avio_wb32(pb, size + 8);
2156 ffio_wfourcc(pb, "udta");
2157 avio_write(pb, buf, size);
2164 static void mov_write_psp_udta_tag(AVIOContext *pb,
2165 const char *str, const char *lang, int type)
2167 int len = utf8len(str) + 1;
2170 avio_wb16(pb, len * 2 + 10); /* size */
2171 avio_wb32(pb, type); /* type */
2172 avio_wb16(pb, language_code(lang)); /* language */
2173 avio_wb16(pb, 0x01); /* ? */
2174 ascii_to_wc(pb, str);
2177 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
2179 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
2183 pos = avio_tell(pb);
2184 avio_wb32(pb, 0); /* size placeholder*/
2185 ffio_wfourcc(pb, "uuid");
2186 ffio_wfourcc(pb, "USMT");
2187 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2188 avio_wb32(pb, 0xbb88695c);
2189 avio_wb32(pb, 0xfac9c740);
2191 pos2 = avio_tell(pb);
2192 avio_wb32(pb, 0); /* size placeholder*/
2193 ffio_wfourcc(pb, "MTDT");
2197 avio_wb16(pb, 0x0C); /* size */
2198 avio_wb32(pb, 0x0B); /* type */
2199 avio_wb16(pb, language_code("und")); /* language */
2200 avio_wb16(pb, 0x0); /* ? */
2201 avio_wb16(pb, 0x021C); /* data */
2203 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
2204 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
2205 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
2207 update_size(pb, pos2);
2208 return update_size(pb, pos);
2214 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
2218 int64_t pos = avio_tell(pb);
2219 avio_wb32(pb, 0); /* size placeholder*/
2220 ffio_wfourcc(pb, "moov");
2222 for (i = 0; i < mov->nb_streams; i++) {
2223 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
2226 mov->tracks[i].time = mov->time;
2227 mov->tracks[i].track_id = i + 1;
2230 if (mov->chapter_track)
2231 for (i = 0; i < s->nb_streams; i++) {
2232 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
2233 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
2235 for (i = 0; i < mov->nb_streams; i++) {
2236 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
2237 mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
2238 mov->tracks[i].tref_id =
2239 mov->tracks[mov->tracks[i].src_track].track_id;
2243 mov_write_mvhd_tag(pb, mov);
2244 if (mov->mode != MODE_MOV && !mov->iods_skip)
2245 mov_write_iods_tag(pb, mov);
2246 for (i = 0; i < mov->nb_streams; i++) {
2247 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
2248 mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
2251 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
2252 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
2254 if (mov->mode == MODE_PSP)
2255 mov_write_uuidusmt_tag(pb, s);
2257 mov_write_udta_tag(pb, mov, s);
2259 return update_size(pb, pos);
2262 static void param_write_int(AVIOContext *pb, const char *name, int value)
2264 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
2267 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
2269 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
2272 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
2275 len = FFMIN(sizeof(buf) / 2 - 1, len);
2276 ff_data_to_hex(buf, value, len, 0);
2277 buf[2 * len] = '\0';
2278 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
2281 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov)
2283 int64_t pos = avio_tell(pb);
2285 const uint8_t uuid[] = {
2286 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
2287 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
2291 ffio_wfourcc(pb, "uuid");
2292 avio_write(pb, uuid, sizeof(uuid));
2295 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
2296 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
2297 avio_printf(pb, "<head>\n");
2298 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
2300 avio_printf(pb, "</head>\n");
2301 avio_printf(pb, "<body>\n");
2302 avio_printf(pb, "<switch>\n");
2303 for (i = 0; i < mov->nb_streams; i++) {
2304 MOVTrack *track = &mov->tracks[i];
2306 /* track->track_id is initialized in write_moov, and thus isn't known
2308 int track_id = i + 1;
2310 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2312 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
2317 avio_printf(pb, "<%s systemBitrate=\"%d\">\n", type,
2318 track->enc->bit_rate);
2319 param_write_int(pb, "systemBitrate", track->enc->bit_rate);
2320 param_write_int(pb, "trackID", track_id);
2321 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
2322 if (track->enc->codec_id == AV_CODEC_ID_H264) {
2324 int size = track->enc->extradata_size;
2325 if (!ff_avc_write_annexb_extradata(track->enc->extradata, &ptr,
2327 param_write_hex(pb, "CodecPrivateData",
2328 ptr ? ptr : track->enc->extradata,
2332 param_write_string(pb, "FourCC", "H264");
2333 } else if (track->enc->codec_id == AV_CODEC_ID_VC1) {
2334 param_write_string(pb, "FourCC", "WVC1");
2335 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2336 track->enc->extradata_size);
2338 param_write_int(pb, "MaxWidth", track->enc->width);
2339 param_write_int(pb, "MaxHeight", track->enc->height);
2340 param_write_int(pb, "DisplayWidth", track->enc->width);
2341 param_write_int(pb, "DisplayHeight", track->enc->height);
2343 if (track->enc->codec_id == AV_CODEC_ID_AAC) {
2344 param_write_string(pb, "FourCC", "AACL");
2345 } else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO) {
2346 param_write_string(pb, "FourCC", "WMAP");
2348 param_write_hex(pb, "CodecPrivateData", track->enc->extradata,
2349 track->enc->extradata_size);
2350 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
2351 track->enc->codec_id));
2352 param_write_int(pb, "Channels", track->enc->channels);
2353 param_write_int(pb, "SamplingRate", track->enc->sample_rate);
2354 param_write_int(pb, "BitsPerSample", 16);
2355 param_write_int(pb, "PacketSize", track->enc->block_align ?
2356 track->enc->block_align : 4);
2358 avio_printf(pb, "</%s>\n", type);
2360 avio_printf(pb, "</switch>\n");
2361 avio_printf(pb, "</body>\n");
2362 avio_printf(pb, "</smil>\n");
2364 return update_size(pb, pos);
2367 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
2370 ffio_wfourcc(pb, "mfhd");
2372 avio_wb32(pb, mov->fragments);
2376 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2377 MOVTrack *track, int64_t moof_offset)
2379 int64_t pos = avio_tell(pb);
2380 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2381 MOV_TFHD_BASE_DATA_OFFSET;
2382 if (!track->entry) {
2383 flags |= MOV_TFHD_DURATION_IS_EMPTY;
2385 flags |= MOV_TFHD_DEFAULT_FLAGS;
2387 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
2388 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
2390 /* Don't set a default sample size, the silverlight player refuses
2391 * to play files with that set. Don't set a default sample duration,
2392 * WMP freaks out if it is set. Don't set a base data offset, PIFF
2393 * file format says it MUST NOT be set. */
2394 if (track->mode == MODE_ISM)
2395 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
2396 MOV_TFHD_BASE_DATA_OFFSET);
2398 avio_wb32(pb, 0); /* size placeholder */
2399 ffio_wfourcc(pb, "tfhd");
2400 avio_w8(pb, 0); /* version */
2401 avio_wb24(pb, flags);
2403 avio_wb32(pb, track->track_id); /* track-id */
2404 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
2405 avio_wb64(pb, moof_offset);
2406 if (flags & MOV_TFHD_DEFAULT_DURATION) {
2407 track->default_duration = get_cluster_duration(track, 0);
2408 avio_wb32(pb, track->default_duration);
2410 if (flags & MOV_TFHD_DEFAULT_SIZE) {
2411 track->default_size = track->entry ? track->cluster[0].size : 1;
2412 avio_wb32(pb, track->default_size);
2414 track->default_size = -1;
2416 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
2417 track->default_sample_flags =
2418 track->enc->codec_type == AVMEDIA_TYPE_VIDEO ?
2419 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
2420 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
2421 avio_wb32(pb, track->default_sample_flags);
2424 return update_size(pb, pos);
2427 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
2429 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
2430 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
2433 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
2434 MOVTrack *track, int moof_size)
2436 int64_t pos = avio_tell(pb);
2437 uint32_t flags = MOV_TRUN_DATA_OFFSET;
2440 for (i = 0; i < track->entry; i++) {
2441 if (get_cluster_duration(track, i) != track->default_duration)
2442 flags |= MOV_TRUN_SAMPLE_DURATION;
2443 if (track->cluster[i].size != track->default_size)
2444 flags |= MOV_TRUN_SAMPLE_SIZE;
2445 if (i > 0 && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
2446 flags |= MOV_TRUN_SAMPLE_FLAGS;
2448 if (!(flags & MOV_TRUN_SAMPLE_FLAGS))
2449 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
2450 if (track->flags & MOV_TRACK_CTTS)
2451 flags |= MOV_TRUN_SAMPLE_CTS;
2453 avio_wb32(pb, 0); /* size placeholder */
2454 ffio_wfourcc(pb, "trun");
2455 avio_w8(pb, 0); /* version */
2456 avio_wb24(pb, flags);
2458 avio_wb32(pb, track->entry); /* sample count */
2459 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
2460 !(mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) &&
2461 track->track_id != 1)
2462 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
2464 avio_wb32(pb, moof_size + 8 + track->data_offset +
2465 track->cluster[0].pos); /* data offset */
2466 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
2467 avio_wb32(pb, get_sample_flags(track, &track->cluster[0]));
2469 for (i = 0; i < track->entry; i++) {
2470 if (flags & MOV_TRUN_SAMPLE_DURATION)
2471 avio_wb32(pb, get_cluster_duration(track, i));
2472 if (flags & MOV_TRUN_SAMPLE_SIZE)
2473 avio_wb32(pb, track->cluster[i].size);
2474 if (flags & MOV_TRUN_SAMPLE_FLAGS)
2475 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
2476 if (flags & MOV_TRUN_SAMPLE_CTS)
2477 avio_wb32(pb, track->cluster[i].cts);
2480 return update_size(pb, pos);
2483 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
2485 int64_t pos = avio_tell(pb);
2486 const uint8_t uuid[] = {
2487 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
2488 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
2491 avio_wb32(pb, 0); /* size placeholder */
2492 ffio_wfourcc(pb, "uuid");
2493 avio_write(pb, uuid, sizeof(uuid));
2496 avio_wb64(pb, track->frag_start);
2497 avio_wb64(pb, track->start_dts + track->track_duration -
2498 track->cluster[0].dts);
2500 return update_size(pb, pos);
2503 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
2504 MOVTrack *track, int entry)
2506 int n = track->nb_frag_info - 1 - entry, i;
2507 int size = 8 + 16 + 4 + 1 + 16*n;
2508 const uint8_t uuid[] = {
2509 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
2510 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
2516 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
2517 avio_wb32(pb, size);
2518 ffio_wfourcc(pb, "uuid");
2519 avio_write(pb, uuid, sizeof(uuid));
2523 for (i = 0; i < n; i++) {
2524 int index = entry + 1 + i;
2525 avio_wb64(pb, track->frag_info[index].time);
2526 avio_wb64(pb, track->frag_info[index].duration);
2528 if (n < mov->ism_lookahead) {
2529 int free_size = 16 * (mov->ism_lookahead - n);
2530 avio_wb32(pb, free_size);
2531 ffio_wfourcc(pb, "free");
2532 for (i = 0; i < free_size - 8; i++)
2539 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
2542 int64_t pos = avio_tell(pb);
2544 for (i = 0; i < mov->ism_lookahead; i++) {
2545 /* Update the tfrf tag for the last ism_lookahead fragments,
2546 * nb_frag_info - 1 is the next fragment to be written. */
2547 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
2549 avio_seek(pb, pos, SEEK_SET);
2553 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2554 MOVTrack *track, int64_t moof_offset,
2557 int64_t pos = avio_tell(pb);
2558 avio_wb32(pb, 0); /* size placeholder */
2559 ffio_wfourcc(pb, "traf");
2561 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2562 mov_write_trun_tag(pb, mov, track, moof_size);
2563 if (mov->mode == MODE_ISM) {
2564 mov_write_tfxd_tag(pb, track);
2566 if (mov->ism_lookahead) {
2567 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2569 track->tfrf_offset = avio_tell(pb);
2570 avio_wb32(pb, 8 + size);
2571 ffio_wfourcc(pb, "free");
2572 for (i = 0; i < size; i++)
2577 return update_size(pb, pos);
2580 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2581 int tracks, int moof_size)
2583 int64_t pos = avio_tell(pb);
2586 avio_wb32(pb, 0); /* size placeholder */
2587 ffio_wfourcc(pb, "moof");
2589 mov_write_mfhd_tag(pb, mov);
2590 for (i = 0; i < mov->nb_streams; i++) {
2591 MOVTrack *track = &mov->tracks[i];
2592 if (tracks >= 0 && i != tracks)
2596 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2599 return update_size(pb, pos);
2602 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2604 AVIOContext *avio_buf;
2607 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2609 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2610 moof_size = ffio_close_null_buf(avio_buf);
2611 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2614 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2616 int64_t pos = avio_tell(pb);
2619 avio_wb32(pb, 0); /* size placeholder */
2620 ffio_wfourcc(pb, "tfra");
2621 avio_w8(pb, 1); /* version */
2624 avio_wb32(pb, track->track_id);
2625 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2626 avio_wb32(pb, track->nb_frag_info);
2627 for (i = 0; i < track->nb_frag_info; i++) {
2628 avio_wb64(pb, track->frag_info[i].time);
2629 avio_wb64(pb, track->frag_info[i].offset);
2630 avio_w8(pb, 1); /* traf number */
2631 avio_w8(pb, 1); /* trun number */
2632 avio_w8(pb, 1); /* sample number */
2635 return update_size(pb, pos);
2638 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2640 int64_t pos = avio_tell(pb);
2643 avio_wb32(pb, 0); /* size placeholder */
2644 ffio_wfourcc(pb, "mfra");
2645 /* An empty mfra atom is enough to indicate to the publishing point that
2646 * the stream has ended. */
2647 if (mov->flags & FF_MOV_FLAG_ISML)
2648 return update_size(pb, pos);
2650 for (i = 0; i < mov->nb_streams; i++) {
2651 MOVTrack *track = &mov->tracks[i];
2652 if (track->nb_frag_info)
2653 mov_write_tfra_tag(pb, track);
2657 ffio_wfourcc(pb, "mfro");
2658 avio_wb32(pb, 0); /* version + flags */
2659 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2661 return update_size(pb, pos);
2664 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2666 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2667 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2669 mov->mdat_pos = avio_tell(pb);
2670 avio_wb32(pb, 0); /* size placeholder*/
2671 ffio_wfourcc(pb, "mdat");
2675 /* TODO: This needs to be more general */
2676 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2678 MOVMuxContext *mov = s->priv_data;
2679 int64_t pos = avio_tell(pb);
2680 int has_h264 = 0, has_video = 0;
2684 for (i = 0; i < s->nb_streams; i++) {
2685 AVStream *st = s->streams[i];
2686 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2688 if (st->codec->codec_id == AV_CODEC_ID_H264)
2692 avio_wb32(pb, 0); /* size */
2693 ffio_wfourcc(pb, "ftyp");
2695 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2696 ffio_wfourcc(pb, mov->major_brand);
2697 else if (mov->mode == MODE_3GP) {
2698 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2699 minor = has_h264 ? 0x100 : 0x200;
2700 } else if (mov->mode & MODE_3G2) {
2701 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2702 minor = has_h264 ? 0x20000 : 0x10000;
2703 } else if (mov->mode == MODE_PSP)
2704 ffio_wfourcc(pb, "MSNV");
2705 else if (mov->mode == MODE_MP4)
2706 ffio_wfourcc(pb, "isom");
2707 else if (mov->mode == MODE_IPOD)
2708 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2709 else if (mov->mode == MODE_ISM)
2710 ffio_wfourcc(pb, "isml");
2711 else if (mov->mode == MODE_F4V)
2712 ffio_wfourcc(pb, "f4v ");
2714 ffio_wfourcc(pb, "qt ");
2716 avio_wb32(pb, minor);
2718 if (mov->mode == MODE_MOV)
2719 ffio_wfourcc(pb, "qt ");
2720 else if (mov->mode == MODE_ISM) {
2721 ffio_wfourcc(pb, "piff");
2722 ffio_wfourcc(pb, "iso2");
2724 ffio_wfourcc(pb, "isom");
2725 ffio_wfourcc(pb, "iso2");
2727 ffio_wfourcc(pb, "avc1");
2730 if (mov->mode == MODE_3GP)
2731 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2732 else if (mov->mode & MODE_3G2)
2733 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2734 else if (mov->mode == MODE_PSP)
2735 ffio_wfourcc(pb, "MSNV");
2736 else if (mov->mode == MODE_MP4)
2737 ffio_wfourcc(pb, "mp41");
2738 return update_size(pb, pos);
2741 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2743 AVStream *video_st = s->streams[0];
2744 AVCodecContext *video_codec = s->streams[0]->codec;
2745 AVCodecContext *audio_codec = s->streams[1]->codec;
2746 int audio_rate = audio_codec->sample_rate;
2747 // TODO: should be avg_frame_rate
2748 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
2749 int audio_kbitrate = audio_codec->bit_rate / 1000;
2750 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2752 avio_wb32(pb, 0x94); /* size */
2753 ffio_wfourcc(pb, "uuid");
2754 ffio_wfourcc(pb, "PROF");
2756 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2757 avio_wb32(pb, 0xbb88695c);
2758 avio_wb32(pb, 0xfac9c740);
2760 avio_wb32(pb, 0x0); /* ? */
2761 avio_wb32(pb, 0x3); /* 3 sections ? */
2763 avio_wb32(pb, 0x14); /* size */
2764 ffio_wfourcc(pb, "FPRF");
2765 avio_wb32(pb, 0x0); /* ? */
2766 avio_wb32(pb, 0x0); /* ? */
2767 avio_wb32(pb, 0x0); /* ? */
2769 avio_wb32(pb, 0x2c); /* size */
2770 ffio_wfourcc(pb, "APRF"); /* audio */
2772 avio_wb32(pb, 0x2); /* TrackID */
2773 ffio_wfourcc(pb, "mp4a");
2774 avio_wb32(pb, 0x20f);
2776 avio_wb32(pb, audio_kbitrate);
2777 avio_wb32(pb, audio_kbitrate);
2778 avio_wb32(pb, audio_rate);
2779 avio_wb32(pb, audio_codec->channels);
2781 avio_wb32(pb, 0x34); /* size */
2782 ffio_wfourcc(pb, "VPRF"); /* video */
2784 avio_wb32(pb, 0x1); /* TrackID */
2785 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2786 ffio_wfourcc(pb, "avc1");
2787 avio_wb16(pb, 0x014D);
2788 avio_wb16(pb, 0x0015);
2790 ffio_wfourcc(pb, "mp4v");
2791 avio_wb16(pb, 0x0000);
2792 avio_wb16(pb, 0x0103);
2795 avio_wb32(pb, video_kbitrate);
2796 avio_wb32(pb, video_kbitrate);
2797 avio_wb32(pb, frame_rate);
2798 avio_wb32(pb, frame_rate);
2799 avio_wb16(pb, video_codec->width);
2800 avio_wb16(pb, video_codec->height);
2801 avio_wb32(pb, 0x010001); /* ? */
2804 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2807 int i, closed_gop = 0;
2809 for (i = 0; i < pkt->size - 4; i++) {
2810 c = (c << 8) + pkt->data[i];
2811 if (c == 0x1b8) { // gop
2812 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2813 } else if (c == 0x100) { // pic
2814 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2815 if (!temp_ref || closed_gop) // I picture is not reordered
2816 *flags = MOV_SYNC_SAMPLE;
2818 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2825 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2827 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2828 int seq = 0, entry = 0;
2829 int key = pkt->flags & AV_PKT_FLAG_KEY;
2830 start = find_next_marker(pkt->data, end);
2831 for (next = start; next < end; start = next) {
2832 next = find_next_marker(start + 4, end);
2833 switch (AV_RB32(start)) {
2834 case VC1_CODE_SEQHDR:
2837 case VC1_CODE_ENTRYPOINT:
2840 case VC1_CODE_SLICE:
2841 trk->vc1_info.slices = 1;
2845 if (!trk->entry && !fragment) {
2846 /* First packet in first fragment */
2847 trk->vc1_info.first_packet_seq = seq;
2848 trk->vc1_info.first_packet_entry = entry;
2849 } else if ((seq && !trk->vc1_info.packet_seq) ||
2850 (entry && !trk->vc1_info.packet_entry)) {
2852 for (i = 0; i < trk->entry; i++)
2853 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2854 trk->has_keyframes = 0;
2856 trk->vc1_info.packet_seq = 1;
2858 trk->vc1_info.packet_entry = 1;
2860 /* First fragment */
2861 if ((!seq || trk->vc1_info.first_packet_seq) &&
2862 (!entry || trk->vc1_info.first_packet_entry)) {
2863 /* First packet had the same headers as this one, readd the
2864 * sync sample flag. */
2865 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2866 trk->has_keyframes = 1;
2870 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2872 else if (trk->vc1_info.packet_seq)
2874 else if (trk->vc1_info.packet_entry)
2877 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2878 trk->has_keyframes++;
2882 static int mov_flush_fragment(AVFormatContext *s)
2884 MOVMuxContext *mov = s->priv_data;
2885 int i, first_track = -1;
2886 int64_t mdat_size = 0;
2888 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2891 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2892 int64_t pos = avio_tell(s->pb);
2894 AVIOContext *moov_buf;
2898 for (i = 0; i < mov->nb_streams; i++)
2899 if (!mov->tracks[i].entry)
2901 /* Don't write the initial moov unless all tracks have data */
2902 if (i < mov->nb_streams)
2905 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
2907 mov_write_moov_tag(moov_buf, mov, s);
2908 buf_size = ffio_close_null_buf(moov_buf);
2909 for (i = 0; i < mov->nb_streams; i++)
2910 mov->tracks[i].data_offset = pos + buf_size + 8;
2912 mov_write_moov_tag(s->pb, mov, s);
2914 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2915 mov->mdat_buf = NULL;
2916 avio_wb32(s->pb, buf_size + 8);
2917 ffio_wfourcc(s->pb, "mdat");
2918 avio_write(s->pb, buf, buf_size);
2923 for (i = 0; i < mov->nb_streams; i++) {
2924 if (mov->tracks[i].entry)
2925 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2926 mov->tracks[i].track_duration -
2927 mov->tracks[i].cluster[0].dts;
2928 mov->tracks[i].entry = 0;
2934 for (i = 0; i < mov->nb_streams; i++) {
2935 MOVTrack *track = &mov->tracks[i];
2936 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2937 track->data_offset = 0;
2939 track->data_offset = mdat_size;
2940 if (!track->mdat_buf)
2942 mdat_size += avio_tell(track->mdat_buf);
2943 if (first_track < 0)
2950 for (i = 0; i < mov->nb_streams; i++) {
2951 MOVTrack *track = &mov->tracks[i];
2952 int buf_size, write_moof = 1, moof_tracks = -1;
2954 int64_t duration = 0;
2957 duration = track->start_dts + track->track_duration -
2958 track->cluster[0].dts;
2959 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2960 if (!track->mdat_buf)
2962 mdat_size = avio_tell(track->mdat_buf);
2965 write_moof = i == first_track;
2969 MOVFragmentInfo *info;
2971 track->nb_frag_info++;
2972 if (track->nb_frag_info >= track->frag_info_capacity) {
2973 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2974 if (av_reallocp_array(&track->frag_info,
2976 sizeof(*track->frag_info)))
2977 return AVERROR(ENOMEM);
2978 track->frag_info_capacity = new_capacity;
2980 info = &track->frag_info[track->nb_frag_info - 1];
2981 info->offset = avio_tell(s->pb);
2982 info->time = mov->tracks[i].frag_start;
2983 info->duration = duration;
2984 mov_write_tfrf_tags(s->pb, mov, track);
2986 mov_write_moof_tag(s->pb, mov, moof_tracks);
2987 info->tfrf_offset = track->tfrf_offset;
2990 avio_wb32(s->pb, mdat_size + 8);
2991 ffio_wfourcc(s->pb, "mdat");
2995 track->frag_start += duration;
2997 if (!track->mdat_buf)
2999 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3000 track->mdat_buf = NULL;
3002 avio_write(s->pb, buf, buf_size);
3012 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3014 MOVMuxContext *mov = s->priv_data;
3015 AVIOContext *pb = s->pb;
3016 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3017 AVCodecContext *enc = trk->enc;
3018 unsigned int samples_in_chunk = 0;
3019 int size = pkt->size;
3020 uint8_t *reformatted_data = NULL;
3022 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3024 if (mov->fragments > 0) {
3025 if (!trk->mdat_buf) {
3026 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3031 if (!mov->mdat_buf) {
3032 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3039 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3040 /* We must find out how many AMR blocks there are in one packet */
3041 static uint16_t packed_size[16] =
3042 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3045 while (len < size && samples_in_chunk < 100) {
3046 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3049 if (samples_in_chunk > 1) {
3050 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3053 } else if (trk->sample_size)
3054 samples_in_chunk = size / trk->sample_size;
3056 samples_in_chunk = 1;
3058 /* copy extradata if it exists */
3059 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3060 trk->vos_len = enc->extradata_size;
3061 trk->vos_data = av_malloc(trk->vos_len);
3062 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3065 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3066 /* from x264 or from bytestream h264 */
3067 /* nal reformating needed */
3068 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3069 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3071 avio_write(pb, reformatted_data, size);
3073 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3075 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3076 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3077 /* extradata is Annex B, assume the bitstream is too and convert it */
3078 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3079 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3080 avio_write(pb, reformatted_data, size);
3082 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3085 avio_write(pb, pkt->data, size);
3088 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3089 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3090 /* copy frame to create needed atoms */
3091 trk->vos_len = size;
3092 trk->vos_data = av_malloc(size);
3094 return AVERROR(ENOMEM);
3095 memcpy(trk->vos_data, pkt->data, size);
3098 if (trk->entry >= trk->cluster_capacity) {
3099 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3100 if (av_reallocp_array(&trk->cluster, new_capacity,
3101 sizeof(*trk->cluster)))
3102 return AVERROR(ENOMEM);
3103 trk->cluster_capacity = new_capacity;
3106 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3107 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3108 trk->cluster[trk->entry].size = size;
3109 trk->cluster[trk->entry].entries = samples_in_chunk;
3110 trk->cluster[trk->entry].dts = pkt->dts;
3111 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3112 /* First packet of a new fragment. We already wrote the duration
3113 * of the last packet of the previous fragment based on track_duration,
3114 * which might not exactly match our dts. Therefore adjust the dts
3115 * of this packet to be what the previous packets duration implies. */
3116 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3118 if (trk->start_dts == AV_NOPTS_VALUE) {
3119 trk->start_dts = pkt->dts;
3120 if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3121 av_log(s, AV_LOG_WARNING,
3122 "Track %d starts with a nonzero dts %"PRId64". This "
3123 "currently isn't handled correctly in combination with "
3124 "empty_moov.\n", pkt->stream_index, pkt->dts);
3126 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3128 if (pkt->pts == AV_NOPTS_VALUE) {
3129 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3130 pkt->pts = pkt->dts;
3132 if (pkt->dts != pkt->pts)
3133 trk->flags |= MOV_TRACK_CTTS;
3134 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3135 trk->cluster[trk->entry].flags = 0;
3136 if (enc->codec_id == AV_CODEC_ID_VC1) {
3137 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3138 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3139 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3140 trk->entry > 0) { // force sync sample for the first key frame
3141 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3142 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3143 trk->flags |= MOV_TRACK_STPS;
3145 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3147 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3148 trk->has_keyframes++;
3151 trk->sample_count += samples_in_chunk;
3152 mov->mdat_size += size;
3154 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3155 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3156 reformatted_data, size);
3157 av_free(reformatted_data);
3161 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3164 mov_flush_fragment(s);
3167 MOVMuxContext *mov = s->priv_data;
3168 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3169 AVCodecContext *enc = trk->enc;
3170 int64_t frag_duration = 0;
3171 int size = pkt->size;
3174 return 0; /* Discard 0 sized packets */
3177 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3178 s->streams[pkt->stream_index]->time_base,
3180 if ((mov->max_fragment_duration &&
3181 frag_duration >= mov->max_fragment_duration) ||
3182 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3183 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3184 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3185 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3186 if (frag_duration >= mov->min_fragment_duration)
3187 mov_flush_fragment(s);
3190 return ff_mov_write_packet(s, pkt);
3194 // QuickTime chapters involve an additional text track with the chapter names
3195 // as samples, and a tref pointing from the other tracks to the chapter one.
3196 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3198 MOVMuxContext *mov = s->priv_data;
3199 MOVTrack *track = &mov->tracks[tracknum];
3200 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3202 // These properties are required to make QT recognize the chapter track
3203 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3205 track->mode = mov->mode;
3206 track->tag = MKTAG('t','e','x','t');
3207 track->timescale = MOV_TIMESCALE;
3208 track->enc = avcodec_alloc_context3(NULL);
3210 return AVERROR(ENOMEM);
3211 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3212 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3213 if (!track->enc->extradata)
3214 return AVERROR(ENOMEM);
3215 track->enc->extradata_size = sizeof(chapter_properties);
3216 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3218 for (i = 0; i < s->nb_chapters; i++) {
3219 AVChapter *c = s->chapters[i];
3220 AVDictionaryEntry *t;
3222 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3223 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3224 pkt.duration = end - pkt.dts;
3226 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3227 const char encd[12] = {
3228 0x00, 0x00, 0x00, 0x0C,
3230 0x00, 0x00, 0x01, 0x00 };
3231 len = strlen(t->value);
3232 pkt.size = len + 2 + 12;
3233 pkt.data = av_malloc(pkt.size);
3235 return AVERROR(ENOMEM);
3236 AV_WB16(pkt.data, len);
3237 memcpy(pkt.data + 2, t->value, len);
3238 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3239 ff_mov_write_packet(s, &pkt);
3240 av_freep(&pkt.data);
3248 * st->disposition controls the "enabled" flag in the tkhd tag.
3249 * QuickTime will not play a track if it is not enabled. So make sure
3250 * that one track of each type (audio, video, subtitle) is enabled.
3252 * Subtitles are special. For audio and video, setting "enabled" also
3253 * makes the track "default" (i.e. it is rendered when played). For
3254 * subtitles, an "enabled" subtitle is not rendered by default, but
3255 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3258 static void enable_tracks(AVFormatContext *s)
3260 MOVMuxContext *mov = s->priv_data;
3262 int enabled[AVMEDIA_TYPE_NB];
3263 int first[AVMEDIA_TYPE_NB];
3265 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3270 for (i = 0; i < s->nb_streams; i++) {
3271 AVStream *st = s->streams[i];
3273 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3274 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3277 if (first[st->codec->codec_type] < 0)
3278 first[st->codec->codec_type] = i;
3279 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3280 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3281 enabled[st->codec->codec_type]++;
3285 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3287 case AVMEDIA_TYPE_VIDEO:
3288 case AVMEDIA_TYPE_AUDIO:
3289 case AVMEDIA_TYPE_SUBTITLE:
3291 mov->per_stream_grouping = 1;
3292 if (!enabled[i] && first[i] >= 0)
3293 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3299 static void mov_free(AVFormatContext *s)
3301 MOVMuxContext *mov = s->priv_data;
3304 if (mov->chapter_track) {
3305 if (mov->tracks[mov->chapter_track].enc)
3306 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3307 av_freep(&mov->tracks[mov->chapter_track].enc);
3310 for (i = 0; i < mov->nb_streams; i++) {
3311 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3312 ff_mov_close_hinting(&mov->tracks[i]);
3313 av_freep(&mov->tracks[i].cluster);
3314 av_freep(&mov->tracks[i].frag_info);
3316 if (mov->tracks[i].vos_len)
3317 av_free(mov->tracks[i].vos_data);
3320 av_freep(&mov->tracks);
3323 static uint32_t rgb_to_yuv(uint32_t rgb)
3328 r = (rgb >> 16) & 0xFF;
3329 g = (rgb >> 8) & 0xFF;
3332 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3333 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3334 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3336 return (y << 16) | (cr << 8) | cb;
3339 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3342 int i, width = 720, height = 480;
3343 int have_palette = 0, have_size = 0;
3344 uint32_t palette[16];
3345 char *cur = st->codec->extradata;
3347 while (cur && *cur) {
3348 if (strncmp("palette:", cur, 8) == 0) {
3350 count = sscanf(cur + 8,
3351 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3352 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3353 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3354 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3355 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3356 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3357 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3358 &palette[12], &palette[13], &palette[14], &palette[15]);
3360 for (i = 0; i < count; i++) {
3361 palette[i] = rgb_to_yuv(palette[i]);
3364 } else if (!strncmp("size:", cur, 5)) {
3365 sscanf(cur + 5, "%dx%d", &width, &height);
3368 if (have_palette && have_size)
3370 cur += strcspn(cur, "\n\r");
3371 cur += strspn(cur, "\n\r");
3374 track->vos_data = av_malloc(16*4);
3375 if (!track->vos_data)
3376 return AVERROR(ENOMEM);
3377 for (i = 0; i < 16; i++) {
3378 AV_WB32(track->vos_data + i * 4, palette[i]);
3380 track->vos_len = 16 * 4;
3382 st->codec->width = width;
3383 st->codec->height = track->height = height;
3388 static int mov_write_header(AVFormatContext *s)
3390 AVIOContext *pb = s->pb;
3391 MOVMuxContext *mov = s->priv_data;
3392 AVDictionaryEntry *t;
3393 int i, hint_track = 0;
3397 /* Default mode == MP4 */
3398 mov->mode = MODE_MP4;
3401 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3402 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3403 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3404 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3405 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3406 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3407 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3410 /* Set the FRAGMENT flag if any of the fragmentation methods are
3412 if (mov->max_fragment_duration || mov->max_fragment_size ||
3413 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3414 FF_MOV_FLAG_FRAG_KEYFRAME |
3415 FF_MOV_FLAG_FRAG_CUSTOM))
3416 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3418 /* Set other implicit flags immediately */
3419 if (mov->mode == MODE_ISM)
3420 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3421 FF_MOV_FLAG_FRAGMENT;
3423 /* faststart: moov at the beginning of the file, if supported */
3424 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3425 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3426 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3427 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3428 "with fragmentation and custom IO, disabling faststart\n");
3429 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3433 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3434 * is enabled, we don't support non-seekable output at all. */
3435 if (!s->pb->seekable &&
3436 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3437 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3438 return AVERROR(EINVAL);
3442 mov_write_ftyp_tag(pb,s);
3443 if (mov->mode == MODE_PSP) {
3444 if (s->nb_streams != 2) {
3445 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3446 return AVERROR(EINVAL);
3448 mov_write_uuidprof_tag(pb, s);
3451 mov->nb_streams = s->nb_streams;
3452 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3453 mov->chapter_track = mov->nb_streams++;
3455 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3456 /* Add hint tracks for each audio and video stream */
3457 hint_track = mov->nb_streams;
3458 for (i = 0; i < s->nb_streams; i++) {
3459 AVStream *st = s->streams[i];
3460 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3461 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3467 // Reserve an extra stream for chapters for the case where chapters
3468 // are written in the trailer
3469 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3471 return AVERROR(ENOMEM);
3473 for (i = 0; i < s->nb_streams; i++) {
3474 AVStream *st= s->streams[i];
3475 MOVTrack *track= &mov->tracks[i];
3476 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3479 track->enc = st->codec;
3480 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3481 if (track->language < 0)
3482 track->language = 0;
3483 track->mode = mov->mode;
3484 track->tag = mov_find_codec_tag(s, track);
3486 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3487 "codec not currently supported in container\n", i);
3490 /* If hinting of this track is enabled by a later hint track,
3491 * this is updated. */
3492 track->hint_track = -1;
3493 track->start_dts = AV_NOPTS_VALUE;
3494 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3495 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3496 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3497 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3498 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3499 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3502 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3504 track->timescale = st->time_base.den;
3505 if (track->mode == MODE_MOV && track->timescale > 100000)
3506 av_log(s, AV_LOG_WARNING,
3507 "WARNING codec timebase is very high. If duration is too long,\n"
3508 "file may not be playable by quicktime. Specify a shorter timebase\n"
3509 "or choose different container.\n");
3510 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3511 track->timescale = st->codec->sample_rate;
3512 /* set sample_size for PCM and ADPCM */
3513 if (av_get_bits_per_sample(st->codec->codec_id) ||
3514 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3515 if (!st->codec->block_align) {
3516 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3519 track->sample_size = st->codec->block_align;
3521 /* set audio_vbr for compressed audio */
3522 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3523 track->audio_vbr = 1;
3525 if (track->mode != MODE_MOV &&
3526 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3527 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3528 i, track->enc->sample_rate);
3531 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3532 track->timescale = st->time_base.den;
3533 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3534 track->timescale = st->time_base.den;
3537 track->height = st->codec->height;
3538 /* The ism specific timescale isn't mandatory, but is assumed by
3539 * some tools, such as mp4split. */
3540 if (mov->mode == MODE_ISM)
3541 track->timescale = 10000000;
3543 avpriv_set_pts_info(st, 64, 1, track->timescale);
3545 /* copy extradata if it exists */
3546 if (st->codec->extradata_size) {
3547 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
3548 mov_create_dvd_sub_decoder_specific_info(track, st);
3550 track->vos_len = st->codec->extradata_size;
3551 track->vos_data = av_malloc(track->vos_len);
3552 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3559 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3560 /* If no fragmentation options have been set, set a default. */
3561 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3562 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3563 !mov->max_fragment_duration && !mov->max_fragment_size)
3564 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3566 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3567 mov->reserved_moov_pos = avio_tell(pb);
3568 mov_write_mdat_tag(pb, mov);
3571 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3572 mov->time = ff_iso8601_to_unix_time(t->value);
3574 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3576 if (mov->chapter_track)
3577 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3580 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3581 /* Initialize the hint tracks for each audio and video stream */
3582 for (i = 0; i < s->nb_streams; i++) {
3583 AVStream *st = s->streams[i];
3584 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3585 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3586 ff_mov_init_hinting(s, hint_track, i);
3594 if (mov->flags & FF_MOV_FLAG_ISML)
3595 mov_write_isml_manifest(pb, mov);
3597 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3598 mov_write_moov_tag(pb, mov, s);
3608 static int get_moov_size(AVFormatContext *s)
3611 AVIOContext *moov_buf;
3612 MOVMuxContext *mov = s->priv_data;
3614 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3616 mov_write_moov_tag(moov_buf, mov, s);
3617 return ffio_close_null_buf(moov_buf);
3621 * This function gets the moov size if moved to the top of the file: the chunk
3622 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3623 * entries) when the moov is moved to the beginning, so the size of the moov
3624 * would change. It also updates the chunk offset tables.
3626 static int compute_moov_size(AVFormatContext *s)
3628 int i, moov_size, moov_size2;
3629 MOVMuxContext *mov = s->priv_data;
3631 moov_size = get_moov_size(s);
3635 for (i = 0; i < mov->nb_streams; i++)
3636 mov->tracks[i].data_offset += moov_size;
3638 moov_size2 = get_moov_size(s);
3642 /* if the size changed, we just switched from stco to co64 and need to
3643 * update the offsets */
3644 if (moov_size2 != moov_size)
3645 for (i = 0; i < mov->nb_streams; i++)
3646 mov->tracks[i].data_offset += moov_size2 - moov_size;
3651 static int shift_data(AVFormatContext *s)
3653 int ret = 0, moov_size;
3654 MOVMuxContext *mov = s->priv_data;
3655 int64_t pos, pos_end = avio_tell(s->pb);
3656 uint8_t *buf, *read_buf[2];
3657 int read_buf_id = 0;
3659 AVIOContext *read_pb;
3661 moov_size = compute_moov_size(s);
3665 buf = av_malloc(moov_size * 2);
3667 return AVERROR(ENOMEM);
3669 read_buf[1] = buf + moov_size;
3671 /* Shift the data: the AVIO context of the output can only be used for
3672 * writing, so we re-open the same output, but for reading. It also avoids
3673 * a read/seek/write/seek back and forth. */
3675 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3677 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3678 "the second pass (faststart)\n", s->filename);
3682 /* mark the end of the shift to up to the last data we wrote, and get ready
3684 pos_end = avio_tell(s->pb);
3685 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3687 /* start reading at where the new moov will be placed */
3688 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3689 pos = avio_tell(read_pb);
3691 #define READ_BLOCK do { \
3692 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3696 /* shift data by chunk of at most moov_size */
3701 n = read_size[read_buf_id];
3704 avio_write(s->pb, read_buf[read_buf_id], n);
3706 } while (pos < pos_end);
3707 avio_close(read_pb);
3714 static int mov_write_trailer(AVFormatContext *s)
3716 MOVMuxContext *mov = s->priv_data;
3717 AVIOContext *pb = s->pb;
3722 // If there were no chapters when the header was written, but there
3723 // are chapters now, write them in the trailer. This only works
3724 // when we are not doing fragments.
3725 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3726 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3727 mov->chapter_track = mov->nb_streams++;
3728 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3733 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3734 moov_pos = avio_tell(pb);
3736 /* Write size of mdat tag */
3737 if (mov->mdat_size + 8 <= UINT32_MAX) {
3738 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3739 avio_wb32(pb, mov->mdat_size + 8);
3741 /* overwrite 'wide' placeholder atom */
3742 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3743 /* special value: real atom size will be 64 bit value after
3746 ffio_wfourcc(pb, "mdat");
3747 avio_wb64(pb, mov->mdat_size + 16);
3749 avio_seek(pb, moov_pos, SEEK_SET);
3751 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3752 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
3753 res = shift_data(s);
3755 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
3756 mov_write_moov_tag(pb, mov, s);
3759 mov_write_moov_tag(pb, mov, s);
3762 mov_flush_fragment(s);
3763 mov_write_mfra_tag(pb, mov);
3766 for (i = 0; i < mov->nb_streams; i++) {
3767 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3768 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3769 int64_t off = avio_tell(pb);
3771 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3772 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3773 avio_write(pb, buf, 7);
3774 avio_seek(pb, off, SEEK_SET);
3785 #if CONFIG_MOV_MUXER
3787 AVOutputFormat ff_mov_muxer = {
3789 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3790 .extensions = "mov",
3791 .priv_data_size = sizeof(MOVMuxContext),
3792 .audio_codec = AV_CODEC_ID_AAC,
3793 .video_codec = CONFIG_LIBX264_ENCODER ?
3794 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3795 .write_header = mov_write_header,
3796 .write_packet = mov_write_packet,
3797 .write_trailer = mov_write_trailer,
3798 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3799 .codec_tag = (const AVCodecTag* const []){
3800 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
3802 .priv_class = &mov_muxer_class,
3805 #if CONFIG_TGP_MUXER
3807 AVOutputFormat ff_tgp_muxer = {
3809 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3810 .extensions = "3gp",
3811 .priv_data_size = sizeof(MOVMuxContext),
3812 .audio_codec = AV_CODEC_ID_AMR_NB,
3813 .video_codec = AV_CODEC_ID_H263,
3814 .write_header = mov_write_header,
3815 .write_packet = mov_write_packet,
3816 .write_trailer = mov_write_trailer,
3817 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3818 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3819 .priv_class = &tgp_muxer_class,
3822 #if CONFIG_MP4_MUXER
3824 AVOutputFormat ff_mp4_muxer = {
3826 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3827 .mime_type = "application/mp4",
3828 .extensions = "mp4",
3829 .priv_data_size = sizeof(MOVMuxContext),
3830 .audio_codec = AV_CODEC_ID_AAC,
3831 .video_codec = CONFIG_LIBX264_ENCODER ?
3832 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3833 .write_header = mov_write_header,
3834 .write_packet = mov_write_packet,
3835 .write_trailer = mov_write_trailer,
3836 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3837 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3838 .priv_class = &mp4_muxer_class,
3841 #if CONFIG_PSP_MUXER
3843 AVOutputFormat ff_psp_muxer = {
3845 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3846 .extensions = "mp4,psp",
3847 .priv_data_size = sizeof(MOVMuxContext),
3848 .audio_codec = AV_CODEC_ID_AAC,
3849 .video_codec = CONFIG_LIBX264_ENCODER ?
3850 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3851 .write_header = mov_write_header,
3852 .write_packet = mov_write_packet,
3853 .write_trailer = mov_write_trailer,
3854 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3855 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3856 .priv_class = &psp_muxer_class,
3859 #if CONFIG_TG2_MUXER
3861 AVOutputFormat ff_tg2_muxer = {
3863 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3864 .extensions = "3g2",
3865 .priv_data_size = sizeof(MOVMuxContext),
3866 .audio_codec = AV_CODEC_ID_AMR_NB,
3867 .video_codec = AV_CODEC_ID_H263,
3868 .write_header = mov_write_header,
3869 .write_packet = mov_write_packet,
3870 .write_trailer = mov_write_trailer,
3871 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3872 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3873 .priv_class = &tg2_muxer_class,
3876 #if CONFIG_IPOD_MUXER
3878 AVOutputFormat ff_ipod_muxer = {
3880 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3881 .mime_type = "application/mp4",
3882 .extensions = "m4v,m4a",
3883 .priv_data_size = sizeof(MOVMuxContext),
3884 .audio_codec = AV_CODEC_ID_AAC,
3885 .video_codec = AV_CODEC_ID_H264,
3886 .write_header = mov_write_header,
3887 .write_packet = mov_write_packet,
3888 .write_trailer = mov_write_trailer,
3889 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3890 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3891 .priv_class = &ipod_muxer_class,
3894 #if CONFIG_ISMV_MUXER
3896 AVOutputFormat ff_ismv_muxer = {
3898 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3899 .mime_type = "application/mp4",
3900 .extensions = "ismv,isma",
3901 .priv_data_size = sizeof(MOVMuxContext),
3902 .audio_codec = AV_CODEC_ID_AAC,
3903 .video_codec = AV_CODEC_ID_H264,
3904 .write_header = mov_write_header,
3905 .write_packet = mov_write_packet,
3906 .write_trailer = mov_write_trailer,
3907 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3908 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3909 .priv_class = &ismv_muxer_class,
3912 #if CONFIG_F4V_MUXER
3914 AVOutputFormat ff_f4v_muxer = {
3916 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
3917 .mime_type = "application/f4v",
3918 .extensions = "f4v",
3919 .priv_data_size = sizeof(MOVMuxContext),
3920 .audio_codec = AV_CODEC_ID_AAC,
3921 .video_codec = AV_CODEC_ID_H264,
3922 .write_header = mov_write_header,
3923 .write_packet = mov_write_packet,
3924 .write_trailer = mov_write_trailer,
3925 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3926 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
3927 .priv_class = &f4v_muxer_class,