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_tfdt_tag(AVIOContext *pb, MOVTrack *track)
2555 int64_t pos = avio_tell(pb);
2557 avio_wb32(pb, 0); /* size */
2558 ffio_wfourcc(pb, "tfdt");
2559 avio_w8(pb, 1); /* version */
2561 avio_wb64(pb, track->frag_start);
2562 return update_size(pb, pos);
2565 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
2566 MOVTrack *track, int64_t moof_offset,
2569 int64_t pos = avio_tell(pb);
2570 avio_wb32(pb, 0); /* size placeholder */
2571 ffio_wfourcc(pb, "traf");
2573 mov_write_tfhd_tag(pb, mov, track, moof_offset);
2574 mov_write_tfdt_tag(pb, track);
2575 mov_write_trun_tag(pb, mov, track, moof_size);
2576 if (mov->mode == MODE_ISM) {
2577 mov_write_tfxd_tag(pb, track);
2579 if (mov->ism_lookahead) {
2580 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
2582 track->tfrf_offset = avio_tell(pb);
2583 avio_wb32(pb, 8 + size);
2584 ffio_wfourcc(pb, "free");
2585 for (i = 0; i < size; i++)
2590 return update_size(pb, pos);
2593 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
2594 int tracks, int moof_size)
2596 int64_t pos = avio_tell(pb);
2599 avio_wb32(pb, 0); /* size placeholder */
2600 ffio_wfourcc(pb, "moof");
2602 mov_write_mfhd_tag(pb, mov);
2603 for (i = 0; i < mov->nb_streams; i++) {
2604 MOVTrack *track = &mov->tracks[i];
2605 if (tracks >= 0 && i != tracks)
2609 mov_write_traf_tag(pb, mov, track, pos, moof_size);
2612 return update_size(pb, pos);
2615 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
2617 AVIOContext *avio_buf;
2620 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
2622 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
2623 moof_size = ffio_close_null_buf(avio_buf);
2624 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
2627 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
2629 int64_t pos = avio_tell(pb);
2632 avio_wb32(pb, 0); /* size placeholder */
2633 ffio_wfourcc(pb, "tfra");
2634 avio_w8(pb, 1); /* version */
2637 avio_wb32(pb, track->track_id);
2638 avio_wb32(pb, 0); /* length of traf/trun/sample num */
2639 avio_wb32(pb, track->nb_frag_info);
2640 for (i = 0; i < track->nb_frag_info; i++) {
2641 avio_wb64(pb, track->frag_info[i].time);
2642 avio_wb64(pb, track->frag_info[i].offset);
2643 avio_w8(pb, 1); /* traf number */
2644 avio_w8(pb, 1); /* trun number */
2645 avio_w8(pb, 1); /* sample number */
2648 return update_size(pb, pos);
2651 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
2653 int64_t pos = avio_tell(pb);
2656 avio_wb32(pb, 0); /* size placeholder */
2657 ffio_wfourcc(pb, "mfra");
2658 /* An empty mfra atom is enough to indicate to the publishing point that
2659 * the stream has ended. */
2660 if (mov->flags & FF_MOV_FLAG_ISML)
2661 return update_size(pb, pos);
2663 for (i = 0; i < mov->nb_streams; i++) {
2664 MOVTrack *track = &mov->tracks[i];
2665 if (track->nb_frag_info)
2666 mov_write_tfra_tag(pb, track);
2670 ffio_wfourcc(pb, "mfro");
2671 avio_wb32(pb, 0); /* version + flags */
2672 avio_wb32(pb, avio_tell(pb) + 4 - pos);
2674 return update_size(pb, pos);
2677 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
2679 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
2680 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
2682 mov->mdat_pos = avio_tell(pb);
2683 avio_wb32(pb, 0); /* size placeholder*/
2684 ffio_wfourcc(pb, "mdat");
2688 /* TODO: This needs to be more general */
2689 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
2691 MOVMuxContext *mov = s->priv_data;
2692 int64_t pos = avio_tell(pb);
2693 int has_h264 = 0, has_video = 0;
2697 for (i = 0; i < s->nb_streams; i++) {
2698 AVStream *st = s->streams[i];
2699 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2701 if (st->codec->codec_id == AV_CODEC_ID_H264)
2705 avio_wb32(pb, 0); /* size */
2706 ffio_wfourcc(pb, "ftyp");
2708 if (mov->major_brand && strlen(mov->major_brand) >= 4)
2709 ffio_wfourcc(pb, mov->major_brand);
2710 else if (mov->mode == MODE_3GP) {
2711 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
2712 minor = has_h264 ? 0x100 : 0x200;
2713 } else if (mov->mode & MODE_3G2) {
2714 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
2715 minor = has_h264 ? 0x20000 : 0x10000;
2716 } else if (mov->mode == MODE_PSP)
2717 ffio_wfourcc(pb, "MSNV");
2718 else if (mov->mode == MODE_MP4)
2719 ffio_wfourcc(pb, "isom");
2720 else if (mov->mode == MODE_IPOD)
2721 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
2722 else if (mov->mode == MODE_ISM)
2723 ffio_wfourcc(pb, "isml");
2724 else if (mov->mode == MODE_F4V)
2725 ffio_wfourcc(pb, "f4v ");
2727 ffio_wfourcc(pb, "qt ");
2729 avio_wb32(pb, minor);
2731 if (mov->mode == MODE_MOV)
2732 ffio_wfourcc(pb, "qt ");
2733 else if (mov->mode == MODE_ISM) {
2734 ffio_wfourcc(pb, "piff");
2735 ffio_wfourcc(pb, "iso2");
2737 ffio_wfourcc(pb, "isom");
2738 ffio_wfourcc(pb, "iso2");
2740 ffio_wfourcc(pb, "avc1");
2743 if (mov->mode == MODE_3GP)
2744 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
2745 else if (mov->mode & MODE_3G2)
2746 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
2747 else if (mov->mode == MODE_PSP)
2748 ffio_wfourcc(pb, "MSNV");
2749 else if (mov->mode == MODE_MP4)
2750 ffio_wfourcc(pb, "mp41");
2751 return update_size(pb, pos);
2754 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
2756 AVStream *video_st = s->streams[0];
2757 AVCodecContext *video_codec = s->streams[0]->codec;
2758 AVCodecContext *audio_codec = s->streams[1]->codec;
2759 int audio_rate = audio_codec->sample_rate;
2760 // TODO: should be avg_frame_rate
2761 int frame_rate = ((video_st->time_base.den) * (0x10000)) / (video_st->time_base.num);
2762 int audio_kbitrate = audio_codec->bit_rate / 1000;
2763 int video_kbitrate = FFMIN(video_codec->bit_rate / 1000, 800 - audio_kbitrate);
2765 avio_wb32(pb, 0x94); /* size */
2766 ffio_wfourcc(pb, "uuid");
2767 ffio_wfourcc(pb, "PROF");
2769 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
2770 avio_wb32(pb, 0xbb88695c);
2771 avio_wb32(pb, 0xfac9c740);
2773 avio_wb32(pb, 0x0); /* ? */
2774 avio_wb32(pb, 0x3); /* 3 sections ? */
2776 avio_wb32(pb, 0x14); /* size */
2777 ffio_wfourcc(pb, "FPRF");
2778 avio_wb32(pb, 0x0); /* ? */
2779 avio_wb32(pb, 0x0); /* ? */
2780 avio_wb32(pb, 0x0); /* ? */
2782 avio_wb32(pb, 0x2c); /* size */
2783 ffio_wfourcc(pb, "APRF"); /* audio */
2785 avio_wb32(pb, 0x2); /* TrackID */
2786 ffio_wfourcc(pb, "mp4a");
2787 avio_wb32(pb, 0x20f);
2789 avio_wb32(pb, audio_kbitrate);
2790 avio_wb32(pb, audio_kbitrate);
2791 avio_wb32(pb, audio_rate);
2792 avio_wb32(pb, audio_codec->channels);
2794 avio_wb32(pb, 0x34); /* size */
2795 ffio_wfourcc(pb, "VPRF"); /* video */
2797 avio_wb32(pb, 0x1); /* TrackID */
2798 if (video_codec->codec_id == AV_CODEC_ID_H264) {
2799 ffio_wfourcc(pb, "avc1");
2800 avio_wb16(pb, 0x014D);
2801 avio_wb16(pb, 0x0015);
2803 ffio_wfourcc(pb, "mp4v");
2804 avio_wb16(pb, 0x0000);
2805 avio_wb16(pb, 0x0103);
2808 avio_wb32(pb, video_kbitrate);
2809 avio_wb32(pb, video_kbitrate);
2810 avio_wb32(pb, frame_rate);
2811 avio_wb32(pb, frame_rate);
2812 avio_wb16(pb, video_codec->width);
2813 avio_wb16(pb, video_codec->height);
2814 avio_wb32(pb, 0x010001); /* ? */
2817 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
2820 int i, closed_gop = 0;
2822 for (i = 0; i < pkt->size - 4; i++) {
2823 c = (c << 8) + pkt->data[i];
2824 if (c == 0x1b8) { // gop
2825 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
2826 } else if (c == 0x100) { // pic
2827 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
2828 if (!temp_ref || closed_gop) // I picture is not reordered
2829 *flags = MOV_SYNC_SAMPLE;
2831 *flags = MOV_PARTIAL_SYNC_SAMPLE;
2838 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk, int fragment)
2840 const uint8_t *start, *next, *end = pkt->data + pkt->size;
2841 int seq = 0, entry = 0;
2842 int key = pkt->flags & AV_PKT_FLAG_KEY;
2843 start = find_next_marker(pkt->data, end);
2844 for (next = start; next < end; start = next) {
2845 next = find_next_marker(start + 4, end);
2846 switch (AV_RB32(start)) {
2847 case VC1_CODE_SEQHDR:
2850 case VC1_CODE_ENTRYPOINT:
2853 case VC1_CODE_SLICE:
2854 trk->vc1_info.slices = 1;
2858 if (!trk->entry && !fragment) {
2859 /* First packet in first fragment */
2860 trk->vc1_info.first_packet_seq = seq;
2861 trk->vc1_info.first_packet_entry = entry;
2862 } else if ((seq && !trk->vc1_info.packet_seq) ||
2863 (entry && !trk->vc1_info.packet_entry)) {
2865 for (i = 0; i < trk->entry; i++)
2866 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
2867 trk->has_keyframes = 0;
2869 trk->vc1_info.packet_seq = 1;
2871 trk->vc1_info.packet_entry = 1;
2873 /* First fragment */
2874 if ((!seq || trk->vc1_info.first_packet_seq) &&
2875 (!entry || trk->vc1_info.first_packet_entry)) {
2876 /* First packet had the same headers as this one, readd the
2877 * sync sample flag. */
2878 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
2879 trk->has_keyframes = 1;
2883 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
2885 else if (trk->vc1_info.packet_seq)
2887 else if (trk->vc1_info.packet_entry)
2890 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
2891 trk->has_keyframes++;
2895 static int mov_flush_fragment(AVFormatContext *s)
2897 MOVMuxContext *mov = s->priv_data;
2898 int i, first_track = -1;
2899 int64_t mdat_size = 0;
2901 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
2904 if (!(mov->flags & FF_MOV_FLAG_EMPTY_MOOV) && mov->fragments == 0) {
2905 int64_t pos = avio_tell(s->pb);
2907 AVIOContext *moov_buf;
2911 for (i = 0; i < mov->nb_streams; i++)
2912 if (!mov->tracks[i].entry)
2914 /* Don't write the initial moov unless all tracks have data */
2915 if (i < mov->nb_streams)
2918 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
2920 mov_write_moov_tag(moov_buf, mov, s);
2921 buf_size = ffio_close_null_buf(moov_buf);
2922 for (i = 0; i < mov->nb_streams; i++)
2923 mov->tracks[i].data_offset = pos + buf_size + 8;
2925 mov_write_moov_tag(s->pb, mov, s);
2927 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
2928 mov->mdat_buf = NULL;
2929 avio_wb32(s->pb, buf_size + 8);
2930 ffio_wfourcc(s->pb, "mdat");
2931 avio_write(s->pb, buf, buf_size);
2936 for (i = 0; i < mov->nb_streams; i++) {
2937 if (mov->tracks[i].entry)
2938 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
2939 mov->tracks[i].track_duration -
2940 mov->tracks[i].cluster[0].dts;
2941 mov->tracks[i].entry = 0;
2947 for (i = 0; i < mov->nb_streams; i++) {
2948 MOVTrack *track = &mov->tracks[i];
2949 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF)
2950 track->data_offset = 0;
2952 track->data_offset = mdat_size;
2953 if (!track->mdat_buf)
2955 mdat_size += avio_tell(track->mdat_buf);
2956 if (first_track < 0)
2963 for (i = 0; i < mov->nb_streams; i++) {
2964 MOVTrack *track = &mov->tracks[i];
2965 int buf_size, write_moof = 1, moof_tracks = -1;
2967 int64_t duration = 0;
2970 duration = track->start_dts + track->track_duration -
2971 track->cluster[0].dts;
2972 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
2973 if (!track->mdat_buf)
2975 mdat_size = avio_tell(track->mdat_buf);
2978 write_moof = i == first_track;
2982 MOVFragmentInfo *info;
2984 track->nb_frag_info++;
2985 if (track->nb_frag_info >= track->frag_info_capacity) {
2986 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
2987 if (av_reallocp_array(&track->frag_info,
2989 sizeof(*track->frag_info)))
2990 return AVERROR(ENOMEM);
2991 track->frag_info_capacity = new_capacity;
2993 info = &track->frag_info[track->nb_frag_info - 1];
2994 info->offset = avio_tell(s->pb);
2995 info->time = track->frag_start;
2996 info->duration = duration;
2997 mov_write_tfrf_tags(s->pb, mov, track);
2999 mov_write_moof_tag(s->pb, mov, moof_tracks);
3000 info->tfrf_offset = track->tfrf_offset;
3003 avio_wb32(s->pb, mdat_size + 8);
3004 ffio_wfourcc(s->pb, "mdat");
3008 track->frag_start += duration;
3010 if (!track->mdat_buf)
3012 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
3013 track->mdat_buf = NULL;
3015 avio_write(s->pb, buf, buf_size);
3025 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3027 MOVMuxContext *mov = s->priv_data;
3028 AVIOContext *pb = s->pb;
3029 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3030 AVCodecContext *enc = trk->enc;
3031 unsigned int samples_in_chunk = 0;
3032 int size = pkt->size;
3033 uint8_t *reformatted_data = NULL;
3035 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3037 if (mov->fragments > 0) {
3038 if (!trk->mdat_buf) {
3039 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
3044 if (!mov->mdat_buf) {
3045 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
3052 if (enc->codec_id == AV_CODEC_ID_AMR_NB) {
3053 /* We must find out how many AMR blocks there are in one packet */
3054 static uint16_t packed_size[16] =
3055 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
3058 while (len < size && samples_in_chunk < 100) {
3059 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
3062 if (samples_in_chunk > 1) {
3063 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
3066 } else if (trk->sample_size)
3067 samples_in_chunk = size / trk->sample_size;
3069 samples_in_chunk = 1;
3071 /* copy extradata if it exists */
3072 if (trk->vos_len == 0 && enc->extradata_size > 0) {
3073 trk->vos_len = enc->extradata_size;
3074 trk->vos_data = av_malloc(trk->vos_len);
3075 memcpy(trk->vos_data, enc->extradata, trk->vos_len);
3078 if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
3079 /* from x264 or from bytestream h264 */
3080 /* nal reformating needed */
3081 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3082 ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
3084 avio_write(pb, reformatted_data, size);
3086 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
3088 } else if (enc->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
3089 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
3090 /* extradata is Annex B, assume the bitstream is too and convert it */
3091 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
3092 ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL);
3093 avio_write(pb, reformatted_data, size);
3095 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
3098 avio_write(pb, pkt->data, size);
3101 if ((enc->codec_id == AV_CODEC_ID_DNXHD ||
3102 enc->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len) {
3103 /* copy frame to create needed atoms */
3104 trk->vos_len = size;
3105 trk->vos_data = av_malloc(size);
3107 return AVERROR(ENOMEM);
3108 memcpy(trk->vos_data, pkt->data, size);
3111 if (trk->entry >= trk->cluster_capacity) {
3112 unsigned new_capacity = 2 * (trk->entry + MOV_INDEX_CLUSTER_SIZE);
3113 if (av_reallocp_array(&trk->cluster, new_capacity,
3114 sizeof(*trk->cluster)))
3115 return AVERROR(ENOMEM);
3116 trk->cluster_capacity = new_capacity;
3119 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
3120 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
3121 trk->cluster[trk->entry].size = size;
3122 trk->cluster[trk->entry].entries = samples_in_chunk;
3123 trk->cluster[trk->entry].dts = pkt->dts;
3124 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
3125 /* First packet of a new fragment. We already wrote the duration
3126 * of the last packet of the previous fragment based on track_duration,
3127 * which might not exactly match our dts. Therefore adjust the dts
3128 * of this packet to be what the previous packets duration implies. */
3129 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
3131 if (trk->start_dts == AV_NOPTS_VALUE) {
3132 trk->start_dts = pkt->dts;
3133 if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3134 av_log(s, AV_LOG_WARNING,
3135 "Track %d starts with a nonzero dts %"PRId64". This "
3136 "currently isn't handled correctly in combination with "
3137 "empty_moov.\n", pkt->stream_index, pkt->dts);
3139 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
3141 if (pkt->pts == AV_NOPTS_VALUE) {
3142 av_log(s, AV_LOG_WARNING, "pts has no value\n");
3143 pkt->pts = pkt->dts;
3145 if (pkt->dts != pkt->pts)
3146 trk->flags |= MOV_TRACK_CTTS;
3147 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
3148 trk->cluster[trk->entry].flags = 0;
3149 if (enc->codec_id == AV_CODEC_ID_VC1) {
3150 mov_parse_vc1_frame(pkt, trk, mov->fragments);
3151 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
3152 if (mov->mode == MODE_MOV && enc->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
3153 trk->entry > 0) { // force sync sample for the first key frame
3154 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
3155 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
3156 trk->flags |= MOV_TRACK_STPS;
3158 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
3160 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
3161 trk->has_keyframes++;
3164 trk->sample_count += samples_in_chunk;
3165 mov->mdat_size += size;
3167 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
3168 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
3169 reformatted_data, size);
3170 av_free(reformatted_data);
3174 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
3177 mov_flush_fragment(s);
3180 MOVMuxContext *mov = s->priv_data;
3181 MOVTrack *trk = &mov->tracks[pkt->stream_index];
3182 AVCodecContext *enc = trk->enc;
3183 int64_t frag_duration = 0;
3184 int size = pkt->size;
3187 return 0; /* Discard 0 sized packets */
3190 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
3191 s->streams[pkt->stream_index]->time_base,
3193 if ((mov->max_fragment_duration &&
3194 frag_duration >= mov->max_fragment_duration) ||
3195 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
3196 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
3197 enc->codec_type == AVMEDIA_TYPE_VIDEO &&
3198 trk->entry && pkt->flags & AV_PKT_FLAG_KEY)) {
3199 if (frag_duration >= mov->min_fragment_duration)
3200 mov_flush_fragment(s);
3203 return ff_mov_write_packet(s, pkt);
3207 // QuickTime chapters involve an additional text track with the chapter names
3208 // as samples, and a tref pointing from the other tracks to the chapter one.
3209 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
3211 MOVMuxContext *mov = s->priv_data;
3212 MOVTrack *track = &mov->tracks[tracknum];
3213 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
3215 // These properties are required to make QT recognize the chapter track
3216 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
3218 track->mode = mov->mode;
3219 track->tag = MKTAG('t','e','x','t');
3220 track->timescale = MOV_TIMESCALE;
3221 track->enc = avcodec_alloc_context3(NULL);
3223 return AVERROR(ENOMEM);
3224 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
3225 track->enc->extradata = av_malloc(sizeof(chapter_properties));
3226 if (!track->enc->extradata)
3227 return AVERROR(ENOMEM);
3228 track->enc->extradata_size = sizeof(chapter_properties);
3229 memcpy(track->enc->extradata, chapter_properties, sizeof(chapter_properties));
3231 for (i = 0; i < s->nb_chapters; i++) {
3232 AVChapter *c = s->chapters[i];
3233 AVDictionaryEntry *t;
3235 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
3236 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
3237 pkt.duration = end - pkt.dts;
3239 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3240 const char encd[12] = {
3241 0x00, 0x00, 0x00, 0x0C,
3243 0x00, 0x00, 0x01, 0x00 };
3244 len = strlen(t->value);
3245 pkt.size = len + 2 + 12;
3246 pkt.data = av_malloc(pkt.size);
3248 return AVERROR(ENOMEM);
3249 AV_WB16(pkt.data, len);
3250 memcpy(pkt.data + 2, t->value, len);
3251 memcpy(pkt.data + len + 2, encd, sizeof(encd));
3252 ff_mov_write_packet(s, &pkt);
3253 av_freep(&pkt.data);
3261 * st->disposition controls the "enabled" flag in the tkhd tag.
3262 * QuickTime will not play a track if it is not enabled. So make sure
3263 * that one track of each type (audio, video, subtitle) is enabled.
3265 * Subtitles are special. For audio and video, setting "enabled" also
3266 * makes the track "default" (i.e. it is rendered when played). For
3267 * subtitles, an "enabled" subtitle is not rendered by default, but
3268 * if no subtitle is enabled, the subtitle menu in QuickTime will be
3271 static void enable_tracks(AVFormatContext *s)
3273 MOVMuxContext *mov = s->priv_data;
3275 int enabled[AVMEDIA_TYPE_NB];
3276 int first[AVMEDIA_TYPE_NB];
3278 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3283 for (i = 0; i < s->nb_streams; i++) {
3284 AVStream *st = s->streams[i];
3286 if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
3287 st->codec->codec_type >= AVMEDIA_TYPE_NB)
3290 if (first[st->codec->codec_type] < 0)
3291 first[st->codec->codec_type] = i;
3292 if (st->disposition & AV_DISPOSITION_DEFAULT) {
3293 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
3294 enabled[st->codec->codec_type]++;
3298 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
3300 case AVMEDIA_TYPE_VIDEO:
3301 case AVMEDIA_TYPE_AUDIO:
3302 case AVMEDIA_TYPE_SUBTITLE:
3304 mov->per_stream_grouping = 1;
3305 if (!enabled[i] && first[i] >= 0)
3306 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
3312 static void mov_free(AVFormatContext *s)
3314 MOVMuxContext *mov = s->priv_data;
3317 if (mov->chapter_track) {
3318 if (mov->tracks[mov->chapter_track].enc)
3319 av_free(mov->tracks[mov->chapter_track].enc->extradata);
3320 av_freep(&mov->tracks[mov->chapter_track].enc);
3323 for (i = 0; i < mov->nb_streams; i++) {
3324 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
3325 ff_mov_close_hinting(&mov->tracks[i]);
3326 av_freep(&mov->tracks[i].cluster);
3327 av_freep(&mov->tracks[i].frag_info);
3329 if (mov->tracks[i].vos_len)
3330 av_free(mov->tracks[i].vos_data);
3333 av_freep(&mov->tracks);
3336 static uint32_t rgb_to_yuv(uint32_t rgb)
3341 r = (rgb >> 16) & 0xFF;
3342 g = (rgb >> 8) & 0xFF;
3345 y = av_clip_uint8( 16. + 0.257 * r + 0.504 * g + 0.098 * b);
3346 cb = av_clip_uint8(128. - 0.148 * r - 0.291 * g + 0.439 * b);
3347 cr = av_clip_uint8(128. + 0.439 * r - 0.368 * g - 0.071 * b);
3349 return (y << 16) | (cr << 8) | cb;
3352 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
3355 int i, width = 720, height = 480;
3356 int have_palette = 0, have_size = 0;
3357 uint32_t palette[16];
3358 char *cur = st->codec->extradata;
3360 while (cur && *cur) {
3361 if (strncmp("palette:", cur, 8) == 0) {
3363 count = sscanf(cur + 8,
3364 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3365 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3366 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
3367 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
3368 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
3369 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
3370 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
3371 &palette[12], &palette[13], &palette[14], &palette[15]);
3373 for (i = 0; i < count; i++) {
3374 palette[i] = rgb_to_yuv(palette[i]);
3377 } else if (!strncmp("size:", cur, 5)) {
3378 sscanf(cur + 5, "%dx%d", &width, &height);
3381 if (have_palette && have_size)
3383 cur += strcspn(cur, "\n\r");
3384 cur += strspn(cur, "\n\r");
3387 track->vos_data = av_malloc(16*4);
3388 if (!track->vos_data)
3389 return AVERROR(ENOMEM);
3390 for (i = 0; i < 16; i++) {
3391 AV_WB32(track->vos_data + i * 4, palette[i]);
3393 track->vos_len = 16 * 4;
3395 st->codec->width = width;
3396 st->codec->height = track->height = height;
3401 static int mov_write_header(AVFormatContext *s)
3403 AVIOContext *pb = s->pb;
3404 MOVMuxContext *mov = s->priv_data;
3405 AVDictionaryEntry *t;
3406 int i, hint_track = 0;
3410 /* Default mode == MP4 */
3411 mov->mode = MODE_MP4;
3414 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
3415 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
3416 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
3417 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
3418 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
3419 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
3420 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
3423 /* Set the FRAGMENT flag if any of the fragmentation methods are
3425 if (mov->max_fragment_duration || mov->max_fragment_size ||
3426 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
3427 FF_MOV_FLAG_FRAG_KEYFRAME |
3428 FF_MOV_FLAG_FRAG_CUSTOM))
3429 mov->flags |= FF_MOV_FLAG_FRAGMENT;
3431 /* Set other implicit flags immediately */
3432 if (mov->mode == MODE_ISM)
3433 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
3434 FF_MOV_FLAG_FRAGMENT;
3436 /* faststart: moov at the beginning of the file, if supported */
3437 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3438 if ((mov->flags & FF_MOV_FLAG_FRAGMENT) ||
3439 (s->flags & AVFMT_FLAG_CUSTOM_IO)) {
3440 av_log(s, AV_LOG_WARNING, "The faststart flag is incompatible "
3441 "with fragmentation and custom IO, disabling faststart\n");
3442 mov->flags &= ~FF_MOV_FLAG_FASTSTART;
3446 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
3447 * is enabled, we don't support non-seekable output at all. */
3448 if (!s->pb->seekable &&
3449 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
3450 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
3451 return AVERROR(EINVAL);
3455 mov_write_ftyp_tag(pb,s);
3456 if (mov->mode == MODE_PSP) {
3457 if (s->nb_streams != 2) {
3458 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
3459 return AVERROR(EINVAL);
3461 mov_write_uuidprof_tag(pb, s);
3464 mov->nb_streams = s->nb_streams;
3465 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
3466 mov->chapter_track = mov->nb_streams++;
3468 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3469 /* Add hint tracks for each audio and video stream */
3470 hint_track = mov->nb_streams;
3471 for (i = 0; i < s->nb_streams; i++) {
3472 AVStream *st = s->streams[i];
3473 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3474 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3480 // Reserve an extra stream for chapters for the case where chapters
3481 // are written in the trailer
3482 mov->tracks = av_mallocz((mov->nb_streams + 1) * sizeof(*mov->tracks));
3484 return AVERROR(ENOMEM);
3486 for (i = 0; i < s->nb_streams; i++) {
3487 AVStream *st= s->streams[i];
3488 MOVTrack *track= &mov->tracks[i];
3489 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
3492 track->enc = st->codec;
3493 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
3494 if (track->language < 0)
3495 track->language = 0;
3496 track->mode = mov->mode;
3497 track->tag = mov_find_codec_tag(s, track);
3499 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
3500 "codec not currently supported in container\n", i);
3503 /* If hinting of this track is enabled by a later hint track,
3504 * this is updated. */
3505 track->hint_track = -1;
3506 track->start_dts = AV_NOPTS_VALUE;
3507 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
3508 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
3509 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
3510 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
3511 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
3512 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
3515 track->height = track->tag >> 24 == 'n' ? 486 : 576;
3517 track->timescale = st->time_base.den;
3518 if (track->mode == MODE_MOV && track->timescale > 100000)
3519 av_log(s, AV_LOG_WARNING,
3520 "WARNING codec timebase is very high. If duration is too long,\n"
3521 "file may not be playable by quicktime. Specify a shorter timebase\n"
3522 "or choose different container.\n");
3523 } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3524 track->timescale = st->codec->sample_rate;
3525 /* set sample_size for PCM and ADPCM */
3526 if (av_get_bits_per_sample(st->codec->codec_id) ||
3527 st->codec->codec_id == AV_CODEC_ID_ILBC) {
3528 if (!st->codec->block_align) {
3529 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set\n", i);
3532 track->sample_size = st->codec->block_align;
3534 /* set audio_vbr for compressed audio */
3535 if (av_get_bits_per_sample(st->codec->codec_id) < 8) {
3536 track->audio_vbr = 1;
3538 if (track->mode != MODE_MOV &&
3539 track->enc->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
3540 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
3541 i, track->enc->sample_rate);
3544 } else if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
3545 track->timescale = st->time_base.den;
3546 } else if (st->codec->codec_type == AVMEDIA_TYPE_DATA) {
3547 track->timescale = st->time_base.den;
3550 track->height = st->codec->height;
3551 /* The ism specific timescale isn't mandatory, but is assumed by
3552 * some tools, such as mp4split. */
3553 if (mov->mode == MODE_ISM)
3554 track->timescale = 10000000;
3556 avpriv_set_pts_info(st, 64, 1, track->timescale);
3558 /* copy extradata if it exists */
3559 if (st->codec->extradata_size) {
3560 if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
3561 mov_create_dvd_sub_decoder_specific_info(track, st);
3563 track->vos_len = st->codec->extradata_size;
3564 track->vos_data = av_malloc(track->vos_len);
3565 memcpy(track->vos_data, st->codec->extradata, track->vos_len);
3572 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
3573 /* If no fragmentation options have been set, set a default. */
3574 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
3575 FF_MOV_FLAG_FRAG_CUSTOM)) &&
3576 !mov->max_fragment_duration && !mov->max_fragment_size)
3577 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
3579 if (mov->flags & FF_MOV_FLAG_FASTSTART)
3580 mov->reserved_moov_pos = avio_tell(pb);
3581 mov_write_mdat_tag(pb, mov);
3584 if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
3585 mov->time = ff_iso8601_to_unix_time(t->value);
3587 mov->time += 0x7C25B080; // 1970 based -> 1904 based
3589 if (mov->chapter_track)
3590 if (mov_create_chapter_track(s, mov->chapter_track) < 0)
3593 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
3594 /* Initialize the hint tracks for each audio and video stream */
3595 for (i = 0; i < s->nb_streams; i++) {
3596 AVStream *st = s->streams[i];
3597 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
3598 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
3599 ff_mov_init_hinting(s, hint_track, i);
3607 if (mov->flags & FF_MOV_FLAG_ISML)
3608 mov_write_isml_manifest(pb, mov);
3610 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3611 mov_write_moov_tag(pb, mov, s);
3621 static int get_moov_size(AVFormatContext *s)
3624 AVIOContext *moov_buf;
3625 MOVMuxContext *mov = s->priv_data;
3627 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
3629 mov_write_moov_tag(moov_buf, mov, s);
3630 return ffio_close_null_buf(moov_buf);
3634 * This function gets the moov size if moved to the top of the file: the chunk
3635 * offset table can switch between stco (32-bit entries) to co64 (64-bit
3636 * entries) when the moov is moved to the beginning, so the size of the moov
3637 * would change. It also updates the chunk offset tables.
3639 static int compute_moov_size(AVFormatContext *s)
3641 int i, moov_size, moov_size2;
3642 MOVMuxContext *mov = s->priv_data;
3644 moov_size = get_moov_size(s);
3648 for (i = 0; i < mov->nb_streams; i++)
3649 mov->tracks[i].data_offset += moov_size;
3651 moov_size2 = get_moov_size(s);
3655 /* if the size changed, we just switched from stco to co64 and need to
3656 * update the offsets */
3657 if (moov_size2 != moov_size)
3658 for (i = 0; i < mov->nb_streams; i++)
3659 mov->tracks[i].data_offset += moov_size2 - moov_size;
3664 static int shift_data(AVFormatContext *s)
3666 int ret = 0, moov_size;
3667 MOVMuxContext *mov = s->priv_data;
3668 int64_t pos, pos_end = avio_tell(s->pb);
3669 uint8_t *buf, *read_buf[2];
3670 int read_buf_id = 0;
3672 AVIOContext *read_pb;
3674 moov_size = compute_moov_size(s);
3678 buf = av_malloc(moov_size * 2);
3680 return AVERROR(ENOMEM);
3682 read_buf[1] = buf + moov_size;
3684 /* Shift the data: the AVIO context of the output can only be used for
3685 * writing, so we re-open the same output, but for reading. It also avoids
3686 * a read/seek/write/seek back and forth. */
3688 ret = avio_open(&read_pb, s->filename, AVIO_FLAG_READ);
3690 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
3691 "the second pass (faststart)\n", s->filename);
3695 /* mark the end of the shift to up to the last data we wrote, and get ready
3697 pos_end = avio_tell(s->pb);
3698 avio_seek(s->pb, mov->reserved_moov_pos + moov_size, SEEK_SET);
3700 /* start reading at where the new moov will be placed */
3701 avio_seek(read_pb, mov->reserved_moov_pos, SEEK_SET);
3702 pos = avio_tell(read_pb);
3704 #define READ_BLOCK do { \
3705 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
3709 /* shift data by chunk of at most moov_size */
3714 n = read_size[read_buf_id];
3717 avio_write(s->pb, read_buf[read_buf_id], n);
3719 } while (pos < pos_end);
3720 avio_close(read_pb);
3727 static int mov_write_trailer(AVFormatContext *s)
3729 MOVMuxContext *mov = s->priv_data;
3730 AVIOContext *pb = s->pb;
3735 // If there were no chapters when the header was written, but there
3736 // are chapters now, write them in the trailer. This only works
3737 // when we are not doing fragments.
3738 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3739 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
3740 mov->chapter_track = mov->nb_streams++;
3741 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
3746 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
3747 moov_pos = avio_tell(pb);
3749 /* Write size of mdat tag */
3750 if (mov->mdat_size + 8 <= UINT32_MAX) {
3751 avio_seek(pb, mov->mdat_pos, SEEK_SET);
3752 avio_wb32(pb, mov->mdat_size + 8);
3754 /* overwrite 'wide' placeholder atom */
3755 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
3756 /* special value: real atom size will be 64 bit value after
3759 ffio_wfourcc(pb, "mdat");
3760 avio_wb64(pb, mov->mdat_size + 16);
3762 avio_seek(pb, moov_pos, SEEK_SET);
3764 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
3765 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
3766 res = shift_data(s);
3768 avio_seek(s->pb, mov->reserved_moov_pos, SEEK_SET);
3769 mov_write_moov_tag(pb, mov, s);
3772 mov_write_moov_tag(pb, mov, s);
3775 mov_flush_fragment(s);
3776 mov_write_mfra_tag(pb, mov);
3779 for (i = 0; i < mov->nb_streams; i++) {
3780 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
3781 mov->tracks[i].vc1_info.struct_offset && s->pb->seekable) {
3782 int64_t off = avio_tell(pb);
3784 if (mov_write_dvc1_structs(&mov->tracks[i], buf) >= 0) {
3785 avio_seek(pb, mov->tracks[i].vc1_info.struct_offset, SEEK_SET);
3786 avio_write(pb, buf, 7);
3787 avio_seek(pb, off, SEEK_SET);
3798 #if CONFIG_MOV_MUXER
3800 AVOutputFormat ff_mov_muxer = {
3802 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
3803 .extensions = "mov",
3804 .priv_data_size = sizeof(MOVMuxContext),
3805 .audio_codec = AV_CODEC_ID_AAC,
3806 .video_codec = CONFIG_LIBX264_ENCODER ?
3807 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3808 .write_header = mov_write_header,
3809 .write_packet = mov_write_packet,
3810 .write_trailer = mov_write_trailer,
3811 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3812 .codec_tag = (const AVCodecTag* const []){
3813 ff_codec_movvideo_tags, ff_codec_movaudio_tags, 0
3815 .priv_class = &mov_muxer_class,
3818 #if CONFIG_TGP_MUXER
3820 AVOutputFormat ff_tgp_muxer = {
3822 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
3823 .extensions = "3gp",
3824 .priv_data_size = sizeof(MOVMuxContext),
3825 .audio_codec = AV_CODEC_ID_AMR_NB,
3826 .video_codec = AV_CODEC_ID_H263,
3827 .write_header = mov_write_header,
3828 .write_packet = mov_write_packet,
3829 .write_trailer = mov_write_trailer,
3830 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3831 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3832 .priv_class = &tgp_muxer_class,
3835 #if CONFIG_MP4_MUXER
3837 AVOutputFormat ff_mp4_muxer = {
3839 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
3840 .mime_type = "application/mp4",
3841 .extensions = "mp4",
3842 .priv_data_size = sizeof(MOVMuxContext),
3843 .audio_codec = AV_CODEC_ID_AAC,
3844 .video_codec = CONFIG_LIBX264_ENCODER ?
3845 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3846 .write_header = mov_write_header,
3847 .write_packet = mov_write_packet,
3848 .write_trailer = mov_write_trailer,
3849 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3850 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3851 .priv_class = &mp4_muxer_class,
3854 #if CONFIG_PSP_MUXER
3856 AVOutputFormat ff_psp_muxer = {
3858 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
3859 .extensions = "mp4,psp",
3860 .priv_data_size = sizeof(MOVMuxContext),
3861 .audio_codec = AV_CODEC_ID_AAC,
3862 .video_codec = CONFIG_LIBX264_ENCODER ?
3863 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
3864 .write_header = mov_write_header,
3865 .write_packet = mov_write_packet,
3866 .write_trailer = mov_write_trailer,
3867 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3868 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3869 .priv_class = &psp_muxer_class,
3872 #if CONFIG_TG2_MUXER
3874 AVOutputFormat ff_tg2_muxer = {
3876 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
3877 .extensions = "3g2",
3878 .priv_data_size = sizeof(MOVMuxContext),
3879 .audio_codec = AV_CODEC_ID_AMR_NB,
3880 .video_codec = AV_CODEC_ID_H263,
3881 .write_header = mov_write_header,
3882 .write_packet = mov_write_packet,
3883 .write_trailer = mov_write_trailer,
3884 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3885 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
3886 .priv_class = &tg2_muxer_class,
3889 #if CONFIG_IPOD_MUXER
3891 AVOutputFormat ff_ipod_muxer = {
3893 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
3894 .mime_type = "application/mp4",
3895 .extensions = "m4v,m4a",
3896 .priv_data_size = sizeof(MOVMuxContext),
3897 .audio_codec = AV_CODEC_ID_AAC,
3898 .video_codec = AV_CODEC_ID_H264,
3899 .write_header = mov_write_header,
3900 .write_packet = mov_write_packet,
3901 .write_trailer = mov_write_trailer,
3902 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3903 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
3904 .priv_class = &ipod_muxer_class,
3907 #if CONFIG_ISMV_MUXER
3909 AVOutputFormat ff_ismv_muxer = {
3911 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
3912 .mime_type = "application/mp4",
3913 .extensions = "ismv,isma",
3914 .priv_data_size = sizeof(MOVMuxContext),
3915 .audio_codec = AV_CODEC_ID_AAC,
3916 .video_codec = AV_CODEC_ID_H264,
3917 .write_header = mov_write_header,
3918 .write_packet = mov_write_packet,
3919 .write_trailer = mov_write_trailer,
3920 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3921 .codec_tag = (const AVCodecTag* const []){ ff_mp4_obj_type, 0 },
3922 .priv_class = &ismv_muxer_class,
3925 #if CONFIG_F4V_MUXER
3927 AVOutputFormat ff_f4v_muxer = {
3929 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
3930 .mime_type = "application/f4v",
3931 .extensions = "f4v",
3932 .priv_data_size = sizeof(MOVMuxContext),
3933 .audio_codec = AV_CODEC_ID_AAC,
3934 .video_codec = AV_CODEC_ID_H264,
3935 .write_header = mov_write_header,
3936 .write_packet = mov_write_packet,
3937 .write_trailer = mov_write_trailer,
3938 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
3939 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
3940 .priv_class = &f4v_muxer_class,