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 FFmpeg.
9 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "avio_internal.h"
35 #include "libavcodec/ac3_parser_internal.h"
36 #include "libavcodec/dnxhddata.h"
37 #include "libavcodec/flac.h"
38 #include "libavcodec/get_bits.h"
40 #include "libavcodec/internal.h"
41 #include "libavcodec/put_bits.h"
42 #include "libavcodec/vc1_common.h"
43 #include "libavcodec/raw.h"
45 #include "libavutil/avstring.h"
46 #include "libavutil/intfloat.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/opt.h"
50 #include "libavutil/dict.h"
51 #include "libavutil/pixdesc.h"
52 #include "libavutil/stereo3d.h"
53 #include "libavutil/timecode.h"
54 #include "libavutil/dovi_meta.h"
55 #include "libavutil/color_utils.h"
61 static const AVOption options[] = {
62 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
63 { "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" },
64 { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
65 { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
66 { "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" },
67 { "frag_every_frame", "Fragment at every frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_EVERY_FRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
68 { "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" },
69 { "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" },
70 { "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" },
71 { "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" },
72 { "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" },
73 { "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" },
74 { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
75 { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
76 { "cmaf", "Write CMAF compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_CMAF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
77 { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
78 { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
79 { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
80 { "skip_sidx", "Skip writing of sidx atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
81 { "write_colr", "Write colr atom even if the color info is unspecified (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
82 { "prefer_icc", "If writing colr atom prioritise usage of ICC profile if it exists in stream packet side data", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_PREFER_ICC}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
83 { "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
84 { "use_metadata_tags", "Use mdta atom for metadata.", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_USE_MDTA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
85 { "skip_trailer", "Skip writing the mfra/tfra/mfro trailer for fragmented files", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_TRAILER}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
86 { "negative_cts_offsets", "Use negative CTS offsets (reducing the need for edit lists)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
87 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
88 { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
89 { "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},
90 { "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},
91 { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
92 { "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},
93 { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
94 { "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},
95 { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
96 { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
97 { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
98 { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
99 { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
100 { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
101 { "encryption_scheme", "Configures the encryption scheme, allowed values are none, cenc-aes-ctr", offsetof(MOVMuxContext, encryption_scheme_str), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
102 { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
103 { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
104 { "use_stream_ids_as_track_ids", "use stream ids as track ids", offsetof(MOVMuxContext, use_stream_ids_as_track_ids), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
105 { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
106 { "write_prft", "Write producer reference time box with specified time source", offsetof(MOVMuxContext, write_prft), AV_OPT_TYPE_INT, {.i64 = MOV_PRFT_NONE}, 0, MOV_PRFT_NB-1, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
107 { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
108 { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
109 { "empty_hdlr_name", "write zero-length name string in hdlr atoms within mdia and minf atoms", offsetof(MOVMuxContext, empty_hdlr_name), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
113 #define MOV_CLASS(flavor)\
114 static const AVClass flavor ## _muxer_class = {\
115 .class_name = #flavor " muxer",\
116 .item_name = av_default_item_name,\
118 .version = LIBAVUTIL_VERSION_INT,\
121 static int get_moov_size(AVFormatContext *s);
123 static int utf8len(const uint8_t *b)
128 GET_UTF8(val, *b++, return -1;)
134 //FIXME support 64 bit variant with wide placeholders
135 static int64_t update_size(AVIOContext *pb, int64_t pos)
137 int64_t curpos = avio_tell(pb);
138 avio_seek(pb, pos, SEEK_SET);
139 avio_wb32(pb, curpos - pos); /* rewrite size */
140 avio_seek(pb, curpos, SEEK_SET);
145 static int co64_required(const MOVTrack *track)
147 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
152 static int is_cover_image(const AVStream *st)
154 /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS
155 * is encoded as sparse video track */
156 return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC;
159 static int rtp_hinting_needed(const AVStream *st)
161 /* Add hint tracks for each real audio and video stream */
162 if (is_cover_image(st))
164 return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
165 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
168 /* Chunk offset atom */
169 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
172 int mode64 = co64_required(track); // use 32 bit size variant if possible
173 int64_t pos = avio_tell(pb);
174 avio_wb32(pb, 0); /* size */
176 ffio_wfourcc(pb, "co64");
178 ffio_wfourcc(pb, "stco");
179 avio_wb32(pb, 0); /* version & flags */
180 avio_wb32(pb, track->chunkCount); /* entry count */
181 for (i = 0; i < track->entry; i++) {
182 if (!track->cluster[i].chunkNum)
185 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
187 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
189 return update_size(pb, pos);
192 /* Sample size atom */
193 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
196 int i, j, entries = 0, tst = -1, oldtst = -1;
198 int64_t pos = avio_tell(pb);
199 avio_wb32(pb, 0); /* size */
200 ffio_wfourcc(pb, "stsz");
201 avio_wb32(pb, 0); /* version & flags */
203 for (i = 0; i < track->entry; i++) {
204 tst = track->cluster[i].size / track->cluster[i].entries;
205 if (oldtst != -1 && tst != oldtst)
208 entries += track->cluster[i].entries;
210 if (equalChunks && track->entry) {
211 int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
212 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
213 avio_wb32(pb, sSize); // sample size
214 avio_wb32(pb, entries); // sample count
216 avio_wb32(pb, 0); // sample size
217 avio_wb32(pb, entries); // sample count
218 for (i = 0; i < track->entry; i++) {
219 for (j = 0; j < track->cluster[i].entries; j++) {
220 avio_wb32(pb, track->cluster[i].size /
221 track->cluster[i].entries);
225 return update_size(pb, pos);
228 /* Sample to chunk atom */
229 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
231 int index = 0, oldval = -1, i;
232 int64_t entryPos, curpos;
234 int64_t pos = avio_tell(pb);
235 avio_wb32(pb, 0); /* size */
236 ffio_wfourcc(pb, "stsc");
237 avio_wb32(pb, 0); // version & flags
238 entryPos = avio_tell(pb);
239 avio_wb32(pb, track->chunkCount); // entry count
240 for (i = 0; i < track->entry; i++) {
241 if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
242 avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
243 avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
244 avio_wb32(pb, 0x1); // sample description index
245 oldval = track->cluster[i].samples_in_chunk;
249 curpos = avio_tell(pb);
250 avio_seek(pb, entryPos, SEEK_SET);
251 avio_wb32(pb, index); // rewrite size
252 avio_seek(pb, curpos, SEEK_SET);
254 return update_size(pb, pos);
257 /* Sync sample atom */
258 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
260 int64_t curpos, entryPos;
262 int64_t pos = avio_tell(pb);
263 avio_wb32(pb, 0); // size
264 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
265 avio_wb32(pb, 0); // version & flags
266 entryPos = avio_tell(pb);
267 avio_wb32(pb, track->entry); // entry count
268 for (i = 0; i < track->entry; i++) {
269 if (track->cluster[i].flags & flag) {
270 avio_wb32(pb, i + 1);
274 curpos = avio_tell(pb);
275 avio_seek(pb, entryPos, SEEK_SET);
276 avio_wb32(pb, index); // rewrite size
277 avio_seek(pb, curpos, SEEK_SET);
278 return update_size(pb, pos);
281 /* Sample dependency atom */
282 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
285 uint8_t leading, dependent, reference, redundancy;
286 int64_t pos = avio_tell(pb);
287 avio_wb32(pb, 0); // size
288 ffio_wfourcc(pb, "sdtp");
289 avio_wb32(pb, 0); // version & flags
290 for (i = 0; i < track->entry; i++) {
291 dependent = MOV_SAMPLE_DEPENDENCY_YES;
292 leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN;
293 if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) {
294 reference = MOV_SAMPLE_DEPENDENCY_NO;
296 if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
297 dependent = MOV_SAMPLE_DEPENDENCY_NO;
299 avio_w8(pb, (leading << 6) | (dependent << 4) |
300 (reference << 2) | redundancy);
302 return update_size(pb, pos);
305 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
307 avio_wb32(pb, 0x11); /* size */
308 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
309 else ffio_wfourcc(pb, "damr");
310 ffio_wfourcc(pb, "FFMP");
311 avio_w8(pb, 0); /* decoder version */
313 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
314 avio_w8(pb, 0x00); /* Mode change period (no restriction) */
315 avio_w8(pb, 0x01); /* Frames per sample */
319 static int mov_write_ac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
324 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
326 if (track->vos_len < 7) {
327 av_log(s, AV_LOG_ERROR,
328 "Cannot write moov atom before AC3 packets."
329 " Set the delay_moov flag to fix this.\n");
330 return AVERROR(EINVAL);
334 ffio_wfourcc(pb, "dac3");
336 init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
337 fscod = get_bits(&gbc, 2);
338 frmsizecod = get_bits(&gbc, 6);
339 bsid = get_bits(&gbc, 5);
340 bsmod = get_bits(&gbc, 3);
341 acmod = get_bits(&gbc, 3);
343 skip_bits(&gbc, 2); // dsurmod
345 if ((acmod & 1) && acmod != 1)
346 skip_bits(&gbc, 2); // cmixlev
348 skip_bits(&gbc, 2); // surmixlev
350 lfeon = get_bits1(&gbc);
352 init_put_bits(&pbc, buf, sizeof(buf));
353 put_bits(&pbc, 2, fscod);
354 put_bits(&pbc, 5, bsid);
355 put_bits(&pbc, 3, bsmod);
356 put_bits(&pbc, 3, acmod);
357 put_bits(&pbc, 1, lfeon);
358 put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
359 put_bits(&pbc, 5, 0); // reserved
361 flush_put_bits(&pbc);
362 avio_write(pb, buf, sizeof(buf));
372 /* Layout of the EC3SpecificBox */
373 /* maximum bitrate */
375 /* number of independent substreams */
378 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
380 /* bit stream identification 5 bits */
382 /* one bit reserved */
383 /* audio service mixing (not supported yet) 1 bit */
384 /* bit stream mode 3 bits */
386 /* audio coding mode 3 bits */
388 /* sub woofer on 1 bit */
390 /* 3 bits reserved */
391 /* number of dependent substreams associated with this substream 4 bits */
393 /* channel locations of the dependent substream(s), if any, 9 bits */
395 /* if there is no dependent substream, then one bit reserved instead */
396 } substream[1]; /* TODO: support 8 independent substreams */
399 #if CONFIG_AC3_PARSER
400 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
402 AC3HeaderInfo *hdr = NULL;
403 struct eac3_info *info;
406 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
407 return AVERROR(ENOMEM);
408 info = track->eac3_priv;
410 if (!info->pkt && !(info->pkt = av_packet_alloc()))
411 return AVERROR(ENOMEM);
413 if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) < 0) {
414 /* drop the packets until we see a good one */
416 av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
419 ret = AVERROR_INVALIDDATA;
423 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
424 num_blocks = hdr->num_blocks;
426 if (!info->ec3_done) {
427 /* AC-3 substream must be the first one */
428 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
429 ret = AVERROR(EINVAL);
433 /* this should always be the case, given that our AC-3 parser
434 * concatenates dependent frames to their independent parent */
435 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
436 /* substream ids must be incremental */
437 if (hdr->substreamid > info->num_ind_sub + 1) {
438 ret = AVERROR(EINVAL);
442 if (hdr->substreamid == info->num_ind_sub + 1) {
443 //info->num_ind_sub++;
444 avpriv_request_sample(mov->fc, "Multiple independent substreams");
445 ret = AVERROR_PATCHWELCOME;
447 } else if (hdr->substreamid < info->num_ind_sub ||
448 hdr->substreamid == 0 && info->substream[0].bsid) {
453 if (hdr->substreamid != 0) {
454 avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
455 ret = AVERROR_PATCHWELCOME;
460 /* fill the info needed for the "dec3" atom */
461 info->substream[hdr->substreamid].fscod = hdr->sr_code;
462 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
463 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
464 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
465 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
467 /* Parse dependent substream(s), if any */
468 if (pkt->size != hdr->frame_size) {
469 int cumul_size = hdr->frame_size;
470 int parent = hdr->substreamid;
472 while (cumul_size != pkt->size) {
475 ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
478 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT) {
479 ret = AVERROR(EINVAL);
482 info->substream[parent].num_dep_sub++;
485 /* header is parsed up to lfeon, but custom channel map may be needed */
486 init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
489 /* skip volume control params */
490 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
491 skip_bits(&gbc, 5); // skip dialog normalization
492 if (get_bits1(&gbc)) {
493 skip_bits(&gbc, 8); // skip compression gain word
496 /* get the dependent stream channel map, if exists */
498 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
500 info->substream[parent].chan_loc |= hdr->channel_mode;
501 cumul_size += hdr->frame_size;
507 if (!info->num_blocks && num_blocks == 6) {
511 else if (info->num_blocks + num_blocks > 6) {
512 ret = AVERROR_INVALIDDATA;
516 if (!info->num_blocks) {
517 ret = av_packet_ref(info->pkt, pkt);
519 info->num_blocks = num_blocks;
522 if ((ret = av_grow_packet(info->pkt, pkt->size)) < 0)
524 memcpy(info->pkt->data + info->pkt->size - pkt->size, pkt->data, pkt->size);
525 info->num_blocks += num_blocks;
526 info->pkt->duration += pkt->duration;
527 if (info->num_blocks != 6)
529 av_packet_unref(pkt);
530 av_packet_move_ref(pkt, info->pkt);
531 info->num_blocks = 0;
542 static int mov_write_eac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
546 struct eac3_info *info;
549 if (!track->eac3_priv) {
550 av_log(s, AV_LOG_ERROR,
551 "Cannot write moov atom before EAC3 packets parsed.\n");
552 return AVERROR(EINVAL);
555 info = track->eac3_priv;
556 size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
557 buf = av_malloc(size);
559 return AVERROR(ENOMEM);
562 init_put_bits(&pbc, buf, size);
563 put_bits(&pbc, 13, info->data_rate);
564 put_bits(&pbc, 3, info->num_ind_sub);
565 for (i = 0; i <= info->num_ind_sub; i++) {
566 put_bits(&pbc, 2, info->substream[i].fscod);
567 put_bits(&pbc, 5, info->substream[i].bsid);
568 put_bits(&pbc, 1, 0); /* reserved */
569 put_bits(&pbc, 1, 0); /* asvc */
570 put_bits(&pbc, 3, info->substream[i].bsmod);
571 put_bits(&pbc, 3, info->substream[i].acmod);
572 put_bits(&pbc, 1, info->substream[i].lfeon);
573 put_bits(&pbc, 5, 0); /* reserved */
574 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
575 if (!info->substream[i].num_dep_sub) {
576 put_bits(&pbc, 1, 0); /* reserved */
578 put_bits(&pbc, 9, info->substream[i].chan_loc);
581 flush_put_bits(&pbc);
582 size = put_bytes_output(&pbc);
584 avio_wb32(pb, size + 8);
585 ffio_wfourcc(pb, "dec3");
586 avio_write(pb, buf, size);
594 * This function writes extradata "as is".
595 * Extradata must be formatted like a valid atom (with size and tag).
597 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
599 avio_write(pb, track->par->extradata, track->par->extradata_size);
600 return track->par->extradata_size;
603 static int mov_write_enda_tag(AVIOContext *pb)
606 ffio_wfourcc(pb, "enda");
607 avio_wb16(pb, 1); /* little endian */
611 static int mov_write_enda_tag_be(AVIOContext *pb)
614 ffio_wfourcc(pb, "enda");
615 avio_wb16(pb, 0); /* big endian */
619 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
624 avio_w8(pb, (size >> (7 * i)) | 0x80);
625 avio_w8(pb, size & 0x7F);
628 static unsigned compute_avg_bitrate(MOVTrack *track)
632 if (!track->track_duration)
634 for (i = 0; i < track->entry; i++)
635 size += track->cluster[i].size;
636 return size * 8 * track->timescale / track->track_duration;
639 struct mpeg4_bit_rate_values {
640 uint32_t buffer_size; ///< Size of the decoding buffer for the elementary stream in bytes.
641 uint32_t max_bit_rate; ///< Maximum rate in bits/second over any window of one second.
642 uint32_t avg_bit_rate; ///< Average rate in bits/second over the entire presentation.
645 static struct mpeg4_bit_rate_values calculate_mpeg4_bit_rates(MOVTrack *track)
647 AVCPBProperties *props = track->st ?
648 (AVCPBProperties*)av_stream_get_side_data(track->st,
649 AV_PKT_DATA_CPB_PROPERTIES,
652 struct mpeg4_bit_rate_values bit_rates = { 0 };
654 bit_rates.avg_bit_rate = compute_avg_bitrate(track);
655 if (!bit_rates.avg_bit_rate) {
656 // if the average bit rate cannot be calculated at this point, such as
657 // in the case of fragmented MP4, utilize the following values as
658 // fall-back in priority order:
660 // 1. average bit rate property
661 // 2. bit rate (usually average over the whole clip)
662 // 3. maximum bit rate property
664 if (props && props->avg_bitrate) {
665 bit_rates.avg_bit_rate = props->avg_bitrate;
666 } else if (track->par->bit_rate) {
667 bit_rates.avg_bit_rate = track->par->bit_rate;
668 } else if (props && props->max_bitrate) {
669 bit_rates.avg_bit_rate = props->max_bitrate;
673 // (FIXME should be max rate in any 1 sec window)
674 bit_rates.max_bit_rate = FFMAX(track->par->bit_rate,
675 bit_rates.avg_bit_rate);
677 // utilize values from properties if we have them available
679 bit_rates.max_bit_rate = FFMAX(bit_rates.max_bit_rate,
681 bit_rates.buffer_size = props->buffer_size / 8;
687 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
689 struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track);
690 int64_t pos = avio_tell(pb);
691 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
693 avio_wb32(pb, 0); // size
694 ffio_wfourcc(pb, "esds");
695 avio_wb32(pb, 0); // Version
698 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
699 avio_wb16(pb, track->track_id);
700 avio_w8(pb, 0x00); // flags (= no flags)
702 // DecoderConfig descriptor
703 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
705 // Object type indication
706 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
707 track->par->codec_id == AV_CODEC_ID_MP3) &&
708 track->par->sample_rate > 24000)
709 avio_w8(pb, 0x6B); // 11172-3
711 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
713 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
714 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
715 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
716 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
717 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
718 avio_w8(pb, 0x15); // flags (= Audiostream)
720 avio_w8(pb, 0x11); // flags (= Visualstream)
722 avio_wb24(pb, bit_rates.buffer_size); // Buffersize DB
723 avio_wb32(pb, bit_rates.max_bit_rate); // maxbitrate
724 avio_wb32(pb, bit_rates.avg_bit_rate);
726 if (track->vos_len) {
727 // DecoderSpecific info descriptor
728 put_descr(pb, 0x05, track->vos_len);
729 avio_write(pb, track->vos_data, track->vos_len);
733 put_descr(pb, 0x06, 1);
735 return update_size(pb, pos);
738 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
740 return codec_id == AV_CODEC_ID_PCM_S24LE ||
741 codec_id == AV_CODEC_ID_PCM_S32LE ||
742 codec_id == AV_CODEC_ID_PCM_F32LE ||
743 codec_id == AV_CODEC_ID_PCM_F64LE;
746 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
748 return codec_id == AV_CODEC_ID_PCM_S24BE ||
749 codec_id == AV_CODEC_ID_PCM_S32BE ||
750 codec_id == AV_CODEC_ID_PCM_F32BE ||
751 codec_id == AV_CODEC_ID_PCM_F64BE;
754 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
757 int64_t pos = avio_tell(pb);
759 avio_wl32(pb, track->tag); // store it byteswapped
760 track->par->codec_tag = av_bswap16(track->tag >> 16);
761 if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
763 return update_size(pb, pos);
766 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
769 int64_t pos = avio_tell(pb);
771 ffio_wfourcc(pb, "wfex");
772 if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
774 return update_size(pb, pos);
777 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
779 int64_t pos = avio_tell(pb);
781 ffio_wfourcc(pb, "dfLa");
782 avio_w8(pb, 0); /* version */
783 avio_wb24(pb, 0); /* flags */
785 /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
786 if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
787 return AVERROR_INVALIDDATA;
789 /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
790 avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
791 avio_wb24(pb, track->par->extradata_size); /* Length */
792 avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
794 return update_size(pb, pos);
797 static int mov_write_dops_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
799 int64_t pos = avio_tell(pb);
800 int channels, channel_map;
802 ffio_wfourcc(pb, "dOps");
803 avio_w8(pb, 0); /* Version */
804 if (track->par->extradata_size < 19) {
805 av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
806 return AVERROR_INVALIDDATA;
808 /* extradata contains an Ogg OpusHead, other than byte-ordering and
809 OpusHead's preceeding magic/version, OpusSpecificBox is currently
811 channels = AV_RB8(track->par->extradata + 9);
812 channel_map = AV_RB8(track->par->extradata + 18);
814 avio_w8(pb, channels); /* OuputChannelCount */
815 avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
816 avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
817 avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
818 avio_w8(pb, channel_map); /* ChannelMappingFamily */
819 /* Write the rest of the header out without byte-swapping. */
821 if (track->par->extradata_size < 21 + channels) {
822 av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
823 return AVERROR_INVALIDDATA;
825 avio_write(pb, track->par->extradata + 19, 2 + channels); /* ChannelMappingTable */
828 return update_size(pb, pos);
831 static int mov_write_dmlp_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
833 int64_t pos = avio_tell(pb);
836 ffio_wfourcc(pb, "dmlp");
838 if (track->vos_len < 20) {
839 av_log(s, AV_LOG_ERROR,
840 "Cannot write moov atom before TrueHD packets."
841 " Set the delay_moov flag to fix this.\n");
842 return AVERROR(EINVAL);
845 length = (AV_RB16(track->vos_data) & 0xFFF) * 2;
846 if (length < 20 || length > track->vos_len)
847 return AVERROR_INVALIDDATA;
849 // Only TrueHD is supported
850 if (AV_RB32(track->vos_data + 4) != 0xF8726FBA)
851 return AVERROR_INVALIDDATA;
853 avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */
854 avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */
855 avio_wb32(pb, 0); /* reserved */
857 return update_size(pb, pos);
860 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
862 uint32_t layout_tag, bitmap;
863 int64_t pos = avio_tell(pb);
865 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
866 track->par->channel_layout,
869 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
870 "lack of channel information\n");
874 if (track->multichannel_as_mono)
877 avio_wb32(pb, 0); // Size
878 ffio_wfourcc(pb, "chan"); // Type
879 avio_w8(pb, 0); // Version
880 avio_wb24(pb, 0); // Flags
881 avio_wb32(pb, layout_tag); // mChannelLayoutTag
882 avio_wb32(pb, bitmap); // mChannelBitmap
883 avio_wb32(pb, 0); // mNumberChannelDescriptions
885 return update_size(pb, pos);
888 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
890 int64_t pos = avio_tell(pb);
892 avio_wb32(pb, 0); /* size */
893 ffio_wfourcc(pb, "wave");
895 if (track->par->codec_id != AV_CODEC_ID_QDM2) {
896 avio_wb32(pb, 12); /* size */
897 ffio_wfourcc(pb, "frma");
898 avio_wl32(pb, track->tag);
901 if (track->par->codec_id == AV_CODEC_ID_AAC) {
902 /* useless atom needed by mplayer, ipod, not needed by quicktime */
903 avio_wb32(pb, 12); /* size */
904 ffio_wfourcc(pb, "mp4a");
906 mov_write_esds_tag(pb, track);
907 } else if (mov_pcm_le_gt16(track->par->codec_id)) {
908 mov_write_enda_tag(pb);
909 } else if (mov_pcm_be_gt16(track->par->codec_id)) {
910 mov_write_enda_tag_be(pb);
911 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
912 mov_write_amr_tag(pb, track);
913 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
914 mov_write_ac3_tag(s, pb, track);
915 } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
916 mov_write_eac3_tag(s, pb, track);
917 } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
918 track->par->codec_id == AV_CODEC_ID_QDM2) {
919 mov_write_extradata_tag(pb, track);
920 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
921 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
922 mov_write_ms_tag(s, pb, track);
925 avio_wb32(pb, 8); /* size */
926 avio_wb32(pb, 0); /* null tag */
928 return update_size(pb, pos);
931 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
934 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
935 int unescaped_size, seq_found = 0;
936 int level = 0, interlace = 0;
937 int packet_seq = track->vc1_info.packet_seq;
938 int packet_entry = track->vc1_info.packet_entry;
939 int slices = track->vc1_info.slices;
942 if (track->start_dts == AV_NOPTS_VALUE) {
943 /* No packets written yet, vc1_info isn't authoritative yet. */
944 /* Assume inline sequence and entry headers. */
945 packet_seq = packet_entry = 1;
946 av_log(NULL, AV_LOG_WARNING,
947 "moov atom written before any packets, unable to write correct "
948 "dvc1 atom. Set the delay_moov flag to fix this.\n");
951 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
953 return AVERROR(ENOMEM);
954 start = find_next_marker(track->vos_data, end);
955 for (next = start; next < end; start = next) {
958 next = find_next_marker(start + 4, end);
959 size = next - start - 4;
962 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
963 init_get_bits(&gb, unescaped, 8 * unescaped_size);
964 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
965 int profile = get_bits(&gb, 2);
966 if (profile != PROFILE_ADVANCED) {
968 return AVERROR(ENOSYS);
971 level = get_bits(&gb, 3);
972 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
974 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
975 skip_bits(&gb, 1); /* broadcast */
976 interlace = get_bits1(&gb);
977 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
982 return AVERROR(ENOSYS);
985 init_put_bits(&pbc, buf, 7);
986 /* VC1DecSpecStruc */
987 put_bits(&pbc, 4, 12); /* profile - advanced */
988 put_bits(&pbc, 3, level);
989 put_bits(&pbc, 1, 0); /* reserved */
990 /* VC1AdvDecSpecStruc */
991 put_bits(&pbc, 3, level);
992 put_bits(&pbc, 1, 0); /* cbr */
993 put_bits(&pbc, 6, 0); /* reserved */
994 put_bits(&pbc, 1, !interlace); /* no interlace */
995 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
996 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
997 put_bits(&pbc, 1, !slices); /* no slice code */
998 put_bits(&pbc, 1, 0); /* no bframe */
999 put_bits(&pbc, 1, 0); /* reserved */
1002 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
1003 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
1005 put_bits32(&pbc, 0xffffffff);
1007 flush_put_bits(&pbc);
1014 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
1016 uint8_t buf[7] = { 0 };
1019 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
1022 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
1023 ffio_wfourcc(pb, "dvc1");
1024 avio_write(pb, buf, sizeof(buf));
1025 avio_write(pb, track->vos_data, track->vos_len);
1030 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
1032 avio_wb32(pb, track->vos_len + 8);
1033 ffio_wfourcc(pb, "glbl");
1034 avio_write(pb, track->vos_data, track->vos_len);
1035 return 8 + track->vos_len;
1039 * Compute flags for 'lpcm' tag.
1040 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1042 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
1045 case AV_CODEC_ID_PCM_F32BE:
1046 case AV_CODEC_ID_PCM_F64BE:
1048 case AV_CODEC_ID_PCM_F32LE:
1049 case AV_CODEC_ID_PCM_F64LE:
1051 case AV_CODEC_ID_PCM_U8:
1053 case AV_CODEC_ID_PCM_S16BE:
1054 case AV_CODEC_ID_PCM_S24BE:
1055 case AV_CODEC_ID_PCM_S32BE:
1057 case AV_CODEC_ID_PCM_S8:
1058 case AV_CODEC_ID_PCM_S16LE:
1059 case AV_CODEC_ID_PCM_S24LE:
1060 case AV_CODEC_ID_PCM_S32LE:
1067 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
1071 if (cluster_idx >= track->entry)
1074 if (cluster_idx + 1 == track->entry)
1075 next_dts = track->track_duration + track->start_dts;
1077 next_dts = track->cluster[cluster_idx + 1].dts;
1079 next_dts -= track->cluster[cluster_idx].dts;
1081 av_assert0(next_dts >= 0);
1082 av_assert0(next_dts <= INT_MAX);
1087 static int get_samples_per_packet(MOVTrack *track)
1089 int i, first_duration;
1091 // return track->par->frame_size;
1093 /* use 1 for raw PCM */
1094 if (!track->audio_vbr)
1097 /* check to see if duration is constant for all clusters */
1100 first_duration = get_cluster_duration(track, 0);
1101 for (i = 1; i < track->entry; i++) {
1102 if (get_cluster_duration(track, i) != first_duration)
1105 return first_duration;
1108 static int mov_write_btrt_tag(AVIOContext *pb, MOVTrack *track)
1110 int64_t pos = avio_tell(pb);
1111 struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track);
1112 if (!bit_rates.max_bit_rate && !bit_rates.avg_bit_rate &&
1113 !bit_rates.buffer_size)
1114 // no useful data to be written, skip
1117 avio_wb32(pb, 0); /* size */
1118 ffio_wfourcc(pb, "btrt");
1120 avio_wb32(pb, bit_rates.buffer_size);
1121 avio_wb32(pb, bit_rates.max_bit_rate);
1122 avio_wb32(pb, bit_rates.avg_bit_rate);
1124 return update_size(pb, pos);
1127 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1129 int64_t pos = avio_tell(pb);
1131 uint32_t tag = track->tag;
1134 if (track->mode == MODE_MOV) {
1135 if (track->timescale > UINT16_MAX || !track->par->channels) {
1136 if (mov_get_lpcm_flags(track->par->codec_id))
1137 tag = AV_RL32("lpcm");
1139 } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1140 mov_pcm_be_gt16(track->par->codec_id) ||
1141 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1142 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1143 track->par->codec_id == AV_CODEC_ID_QDM2) {
1148 avio_wb32(pb, 0); /* size */
1149 if (mov->encryption_scheme != MOV_ENC_NONE) {
1150 ffio_wfourcc(pb, "enca");
1152 avio_wl32(pb, tag); // store it byteswapped
1154 avio_wb32(pb, 0); /* Reserved */
1155 avio_wb16(pb, 0); /* Reserved */
1156 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1158 /* SoundDescription */
1159 avio_wb16(pb, version); /* Version */
1160 avio_wb16(pb, 0); /* Revision level */
1161 avio_wb32(pb, 0); /* Reserved */
1166 avio_wb16(pb, 0xfffe);
1168 avio_wb32(pb, 0x00010000);
1170 avio_wb64(pb, av_double2int(track->par->sample_rate));
1171 avio_wb32(pb, track->par->channels);
1172 avio_wb32(pb, 0x7F000000);
1173 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1174 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1175 avio_wb32(pb, track->sample_size);
1176 avio_wb32(pb, get_samples_per_packet(track));
1178 if (track->mode == MODE_MOV) {
1179 avio_wb16(pb, track->par->channels);
1180 if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1181 track->par->codec_id == AV_CODEC_ID_PCM_S8)
1182 avio_wb16(pb, 8); /* bits per sample */
1183 else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1184 avio_wb16(pb, track->par->bits_per_coded_sample);
1187 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1188 } else { /* reserved for mp4/3gp */
1189 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1190 track->par->codec_id == AV_CODEC_ID_ALAC ||
1191 track->par->codec_id == AV_CODEC_ID_OPUS) {
1192 avio_wb16(pb, track->par->channels);
1196 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1197 track->par->codec_id == AV_CODEC_ID_ALAC) {
1198 avio_wb16(pb, track->par->bits_per_raw_sample);
1205 avio_wb16(pb, 0); /* packet size (= 0) */
1206 if (track->par->codec_id == AV_CODEC_ID_OPUS)
1207 avio_wb16(pb, 48000);
1208 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1209 avio_wb32(pb, track->par->sample_rate);
1211 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1212 track->par->sample_rate : 0);
1214 if (track->par->codec_id != AV_CODEC_ID_TRUEHD)
1215 avio_wb16(pb, 0); /* Reserved */
1218 if (version == 1) { /* SoundDescription V1 extended info */
1219 if (mov_pcm_le_gt16(track->par->codec_id) ||
1220 mov_pcm_be_gt16(track->par->codec_id))
1221 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1223 avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1224 avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1225 avio_wb32(pb, track->sample_size); /* Bytes per frame */
1226 avio_wb32(pb, 2); /* Bytes per sample */
1229 if (track->mode == MODE_MOV &&
1230 (track->par->codec_id == AV_CODEC_ID_AAC ||
1231 track->par->codec_id == AV_CODEC_ID_AC3 ||
1232 track->par->codec_id == AV_CODEC_ID_EAC3 ||
1233 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1234 track->par->codec_id == AV_CODEC_ID_ALAC ||
1235 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1236 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1237 track->par->codec_id == AV_CODEC_ID_QDM2 ||
1238 (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1239 (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1240 ret = mov_write_wave_tag(s, pb, track);
1241 else if (track->tag == MKTAG('m','p','4','a'))
1242 ret = mov_write_esds_tag(pb, track);
1243 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1244 ret = mov_write_amr_tag(pb, track);
1245 else if (track->par->codec_id == AV_CODEC_ID_AC3)
1246 ret = mov_write_ac3_tag(s, pb, track);
1247 else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1248 ret = mov_write_eac3_tag(s, pb, track);
1249 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1250 ret = mov_write_extradata_tag(pb, track);
1251 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1252 ret = mov_write_wfex_tag(s, pb, track);
1253 else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1254 ret = mov_write_dfla_tag(pb, track);
1255 else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1256 ret = mov_write_dops_tag(s, pb, track);
1257 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1258 ret = mov_write_dmlp_tag(s, pb, track);
1259 else if (track->vos_len > 0)
1260 ret = mov_write_glbl_tag(pb, track);
1265 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1266 && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1270 if (mov->encryption_scheme != MOV_ENC_NONE
1271 && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1275 if (track->mode == MODE_MP4 &&
1276 ((ret = mov_write_btrt_tag(pb, track)) < 0))
1279 ret = update_size(pb, pos);
1283 static int mov_write_d263_tag(AVIOContext *pb)
1285 avio_wb32(pb, 0xf); /* size */
1286 ffio_wfourcc(pb, "d263");
1287 ffio_wfourcc(pb, "FFMP");
1288 avio_w8(pb, 0); /* decoder version */
1289 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1290 avio_w8(pb, 0xa); /* level */
1291 avio_w8(pb, 0); /* profile */
1295 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1297 int64_t pos = avio_tell(pb);
1300 ffio_wfourcc(pb, "av1C");
1301 ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1302 return update_size(pb, pos);
1305 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1307 int64_t pos = avio_tell(pb);
1310 ffio_wfourcc(pb, "avcC");
1311 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1312 return update_size(pb, pos);
1315 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1317 int64_t pos = avio_tell(pb);
1320 ffio_wfourcc(pb, "vpcC");
1321 avio_w8(pb, 1); /* version */
1322 avio_wb24(pb, 0); /* flags */
1323 ff_isom_write_vpcc(s, pb, track->par);
1324 return update_size(pb, pos);
1327 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1329 int64_t pos = avio_tell(pb);
1332 ffio_wfourcc(pb, "hvcC");
1333 if (track->tag == MKTAG('h','v','c','1'))
1334 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1336 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1337 return update_size(pb, pos);
1340 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1341 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1346 int display_width = track->par->width;
1348 if (track->vos_data && track->vos_len > 0x29) {
1349 if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1350 /* looks like a DNxHD bit stream */
1351 interlaced = (track->vos_data[5] & 2);
1352 cid = AV_RB32(track->vos_data + 0x28);
1354 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1358 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1362 avio_wb32(pb, 24); /* size */
1363 ffio_wfourcc(pb, "ACLR");
1364 ffio_wfourcc(pb, "ACLR");
1365 ffio_wfourcc(pb, "0001");
1366 if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1367 track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1368 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1369 } else { /* Full range (0-255) */
1370 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1372 avio_wb32(pb, 0); /* unknown */
1374 if (track->tag == MKTAG('A','V','d','h')) {
1376 ffio_wfourcc(pb, "ADHR");
1377 ffio_wfourcc(pb, "0001");
1379 avio_wb32(pb, 0); /* unknown */
1380 avio_wb32(pb, 1); /* unknown */
1381 avio_wb32(pb, 0); /* unknown */
1382 avio_wb32(pb, 0); /* unknown */
1386 avio_wb32(pb, 24); /* size */
1387 ffio_wfourcc(pb, "APRG");
1388 ffio_wfourcc(pb, "APRG");
1389 ffio_wfourcc(pb, "0001");
1390 avio_wb32(pb, 1); /* unknown */
1391 avio_wb32(pb, 0); /* unknown */
1393 avio_wb32(pb, 120); /* size */
1394 ffio_wfourcc(pb, "ARES");
1395 ffio_wfourcc(pb, "ARES");
1396 ffio_wfourcc(pb, "0001");
1397 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1398 if ( track->par->sample_aspect_ratio.num > 0
1399 && track->par->sample_aspect_ratio.den > 0)
1400 display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1401 avio_wb32(pb, display_width);
1402 /* values below are based on samples created with quicktime and avid codecs */
1404 avio_wb32(pb, track->par->height / 2);
1405 avio_wb32(pb, 2); /* unknown */
1406 avio_wb32(pb, 0); /* unknown */
1407 avio_wb32(pb, 4); /* unknown */
1409 avio_wb32(pb, track->par->height);
1410 avio_wb32(pb, 1); /* unknown */
1411 avio_wb32(pb, 0); /* unknown */
1412 if (track->par->height == 1080)
1413 avio_wb32(pb, 5); /* unknown */
1415 avio_wb32(pb, 6); /* unknown */
1418 for (i = 0; i < 10; i++)
1424 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1427 ffio_wfourcc(pb, "DpxE");
1428 if (track->par->extradata_size >= 12 &&
1429 !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1430 avio_wb32(pb, track->par->extradata[11]);
1437 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1441 if (track->par->width == 720) { /* SD */
1442 if (track->par->height == 480) { /* NTSC */
1443 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1444 else tag = MKTAG('d','v','c',' ');
1445 }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1446 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1447 else tag = MKTAG('d','v','p','p');
1448 } else if (track->par->height == 720) { /* HD 720 line */
1449 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1450 else tag = MKTAG('d','v','h','p');
1451 } else if (track->par->height == 1080) { /* HD 1080 line */
1452 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1453 else tag = MKTAG('d','v','h','6');
1455 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1462 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1464 AVRational rational_framerate = st->avg_frame_rate;
1466 if (rational_framerate.den != 0)
1467 rate = av_q2d(rational_framerate);
1471 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1473 int tag = track->par->codec_tag;
1474 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1475 AVStream *st = track->st;
1476 int rate = defined_frame_rate(s, st);
1479 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1481 if (track->par->format == AV_PIX_FMT_YUV420P) {
1482 if (track->par->width == 1280 && track->par->height == 720) {
1484 if (rate == 24) tag = MKTAG('x','d','v','4');
1485 else if (rate == 25) tag = MKTAG('x','d','v','5');
1486 else if (rate == 30) tag = MKTAG('x','d','v','1');
1487 else if (rate == 50) tag = MKTAG('x','d','v','a');
1488 else if (rate == 60) tag = MKTAG('x','d','v','9');
1490 } else if (track->par->width == 1440 && track->par->height == 1080) {
1492 if (rate == 24) tag = MKTAG('x','d','v','6');
1493 else if (rate == 25) tag = MKTAG('x','d','v','7');
1494 else if (rate == 30) tag = MKTAG('x','d','v','8');
1496 if (rate == 25) tag = MKTAG('x','d','v','3');
1497 else if (rate == 30) tag = MKTAG('x','d','v','2');
1499 } else if (track->par->width == 1920 && track->par->height == 1080) {
1501 if (rate == 24) tag = MKTAG('x','d','v','d');
1502 else if (rate == 25) tag = MKTAG('x','d','v','e');
1503 else if (rate == 30) tag = MKTAG('x','d','v','f');
1505 if (rate == 25) tag = MKTAG('x','d','v','c');
1506 else if (rate == 30) tag = MKTAG('x','d','v','b');
1509 } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1510 if (track->par->width == 1280 && track->par->height == 720) {
1512 if (rate == 24) tag = MKTAG('x','d','5','4');
1513 else if (rate == 25) tag = MKTAG('x','d','5','5');
1514 else if (rate == 30) tag = MKTAG('x','d','5','1');
1515 else if (rate == 50) tag = MKTAG('x','d','5','a');
1516 else if (rate == 60) tag = MKTAG('x','d','5','9');
1518 } else if (track->par->width == 1920 && track->par->height == 1080) {
1520 if (rate == 24) tag = MKTAG('x','d','5','d');
1521 else if (rate == 25) tag = MKTAG('x','d','5','e');
1522 else if (rate == 30) tag = MKTAG('x','d','5','f');
1524 if (rate == 25) tag = MKTAG('x','d','5','c');
1525 else if (rate == 30) tag = MKTAG('x','d','5','b');
1533 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1535 int tag = track->par->codec_tag;
1536 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1537 AVStream *st = track->st;
1538 int rate = defined_frame_rate(s, st);
1541 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1543 if (track->par->format == AV_PIX_FMT_YUV420P10) {
1544 if (track->par->width == 960 && track->par->height == 720) {
1546 if (rate == 24) tag = MKTAG('a','i','5','p');
1547 else if (rate == 25) tag = MKTAG('a','i','5','q');
1548 else if (rate == 30) tag = MKTAG('a','i','5','p');
1549 else if (rate == 50) tag = MKTAG('a','i','5','q');
1550 else if (rate == 60) tag = MKTAG('a','i','5','p');
1552 } else if (track->par->width == 1440 && track->par->height == 1080) {
1554 if (rate == 24) tag = MKTAG('a','i','5','3');
1555 else if (rate == 25) tag = MKTAG('a','i','5','2');
1556 else if (rate == 30) tag = MKTAG('a','i','5','3');
1558 if (rate == 50) tag = MKTAG('a','i','5','5');
1559 else if (rate == 60) tag = MKTAG('a','i','5','6');
1562 } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1563 if (track->par->width == 1280 && track->par->height == 720) {
1565 if (rate == 24) tag = MKTAG('a','i','1','p');
1566 else if (rate == 25) tag = MKTAG('a','i','1','q');
1567 else if (rate == 30) tag = MKTAG('a','i','1','p');
1568 else if (rate == 50) tag = MKTAG('a','i','1','q');
1569 else if (rate == 60) tag = MKTAG('a','i','1','p');
1571 } else if (track->par->width == 1920 && track->par->height == 1080) {
1573 if (rate == 24) tag = MKTAG('a','i','1','3');
1574 else if (rate == 25) tag = MKTAG('a','i','1','2');
1575 else if (rate == 30) tag = MKTAG('a','i','1','3');
1577 if (rate == 25) tag = MKTAG('a','i','1','5');
1578 else if (rate == 50) tag = MKTAG('a','i','1','5');
1579 else if (rate == 60) tag = MKTAG('a','i','1','6');
1581 } else if ( track->par->width == 4096 && track->par->height == 2160
1582 || track->par->width == 3840 && track->par->height == 2160
1583 || track->par->width == 2048 && track->par->height == 1080) {
1584 tag = MKTAG('a','i','v','x');
1591 static const struct {
1592 enum AVPixelFormat pix_fmt;
1595 } mov_pix_fmt_tags[] = {
1596 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1597 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1598 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1599 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1600 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1601 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1602 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1603 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1604 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1605 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1606 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1607 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1608 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1609 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1610 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1613 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1615 int tag = MKTAG('A','V','d','n');
1616 if (track->par->profile != FF_PROFILE_UNKNOWN &&
1617 track->par->profile != FF_PROFILE_DNXHD)
1618 tag = MKTAG('A','V','d','h');
1622 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1624 int tag = track->par->codec_tag;
1626 enum AVPixelFormat pix_fmt;
1628 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1629 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1630 tag = mov_pix_fmt_tags[i].tag;
1631 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1632 if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1637 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1638 track->par->bits_per_coded_sample);
1639 if (tag == MKTAG('r','a','w',' ') &&
1640 track->par->format != pix_fmt &&
1641 track->par->format != AV_PIX_FMT_GRAY8 &&
1642 track->par->format != AV_PIX_FMT_NONE)
1643 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1644 av_get_pix_fmt_name(track->par->format));
1648 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1650 unsigned int tag = track->par->codec_tag;
1652 // "rtp " is used to distinguish internally created RTP-hint tracks
1653 // (with rtp_ctx) from other tracks.
1654 if (tag == MKTAG('r','t','p',' '))
1656 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1657 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1658 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1659 track->par->codec_id == AV_CODEC_ID_H263 ||
1660 track->par->codec_id == AV_CODEC_ID_H264 ||
1661 track->par->codec_id == AV_CODEC_ID_DNXHD ||
1662 track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1663 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1664 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1665 tag = mov_get_dv_codec_tag(s, track);
1666 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1667 tag = mov_get_rawvideo_codec_tag(s, track);
1668 else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1669 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1670 else if (track->par->codec_id == AV_CODEC_ID_H264)
1671 tag = mov_get_h264_codec_tag(s, track);
1672 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1673 tag = mov_get_dnxhd_codec_tag(s, track);
1674 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1675 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1676 if (!tag) { // if no mac fcc found, try with Microsoft tags
1677 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1679 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1680 "the file may be unplayable!\n");
1682 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1683 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1684 if (!tag) { // if no mac fcc found, try with Microsoft tags
1685 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1687 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1688 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1689 "the file may be unplayable!\n");
1692 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1693 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1699 static const AVCodecTag codec_cover_image_tags[] = {
1700 { AV_CODEC_ID_MJPEG, 0xD },
1701 { AV_CODEC_ID_PNG, 0xE },
1702 { AV_CODEC_ID_BMP, 0x1B },
1703 { AV_CODEC_ID_NONE, 0 },
1706 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1707 unsigned int tag, int codec_id)
1712 * Check that tag + id is in the table
1714 for (i = 0; tags && tags[i]; i++) {
1715 const AVCodecTag *codec_tags = tags[i];
1716 while (codec_tags->id != AV_CODEC_ID_NONE) {
1717 if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1718 codec_tags->id == codec_id)
1719 return codec_tags->tag;
1726 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1728 if (is_cover_image(track->st))
1729 return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1731 if (track->mode == MODE_IPOD)
1732 if (!av_match_ext(s->url, "m4a") &&
1733 !av_match_ext(s->url, "m4v") &&
1734 !av_match_ext(s->url, "m4b"))
1735 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1736 "Quicktime/Ipod might not play the file\n");
1738 if (track->mode == MODE_MOV) {
1739 return mov_get_codec_tag(s, track);
1741 return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1742 track->par->codec_id);
1745 /** Write uuid atom.
1746 * Needed to make file play in iPods running newest firmware
1747 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1749 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1752 ffio_wfourcc(pb, "uuid");
1753 avio_wb32(pb, 0x6b6840f2);
1754 avio_wb32(pb, 0x5f244fc5);
1755 avio_wb32(pb, 0xba39a51b);
1756 avio_wb32(pb, 0xcf0323f3);
1761 static const uint16_t fiel_data[] = {
1762 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1765 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1767 unsigned mov_field_order = 0;
1768 if (field_order < FF_ARRAY_ELEMS(fiel_data))
1769 mov_field_order = fiel_data[field_order];
1773 ffio_wfourcc(pb, "fiel");
1774 avio_wb16(pb, mov_field_order);
1778 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1780 int ret = AVERROR_BUG;
1781 int64_t pos = avio_tell(pb);
1782 avio_wb32(pb, 0); /* size */
1783 avio_wl32(pb, track->tag); // store it byteswapped
1784 avio_wb32(pb, 0); /* Reserved */
1785 avio_wb16(pb, 0); /* Reserved */
1786 avio_wb16(pb, 1); /* Data-reference index */
1788 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1789 mov_write_esds_tag(pb, track);
1790 else if (track->par->extradata_size)
1791 avio_write(pb, track->par->extradata, track->par->extradata_size);
1793 if (track->mode == MODE_MP4 &&
1794 ((ret = mov_write_btrt_tag(pb, track)) < 0))
1797 return update_size(pb, pos);
1800 static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d)
1804 if (stereo_3d->flags != 0) {
1805 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1809 switch (stereo_3d->type) {
1810 case AV_STEREO3D_2D:
1813 case AV_STEREO3D_TOPBOTTOM:
1816 case AV_STEREO3D_SIDEBYSIDE:
1820 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1823 avio_wb32(pb, 13); /* size */
1824 ffio_wfourcc(pb, "st3d");
1825 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1826 avio_w8(pb, stereo_mode);
1830 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1832 int64_t sv3d_pos, svhd_pos, proj_pos;
1833 const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1835 if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1836 spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1837 spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1838 av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1842 sv3d_pos = avio_tell(pb);
1843 avio_wb32(pb, 0); /* size */
1844 ffio_wfourcc(pb, "sv3d");
1846 svhd_pos = avio_tell(pb);
1847 avio_wb32(pb, 0); /* size */
1848 ffio_wfourcc(pb, "svhd");
1849 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1850 avio_put_str(pb, metadata_source);
1851 update_size(pb, svhd_pos);
1853 proj_pos = avio_tell(pb);
1854 avio_wb32(pb, 0); /* size */
1855 ffio_wfourcc(pb, "proj");
1857 avio_wb32(pb, 24); /* size */
1858 ffio_wfourcc(pb, "prhd");
1859 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1860 avio_wb32(pb, spherical_mapping->yaw);
1861 avio_wb32(pb, spherical_mapping->pitch);
1862 avio_wb32(pb, spherical_mapping->roll);
1864 switch (spherical_mapping->projection) {
1865 case AV_SPHERICAL_EQUIRECTANGULAR:
1866 case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1867 avio_wb32(pb, 28); /* size */
1868 ffio_wfourcc(pb, "equi");
1869 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1870 avio_wb32(pb, spherical_mapping->bound_top);
1871 avio_wb32(pb, spherical_mapping->bound_bottom);
1872 avio_wb32(pb, spherical_mapping->bound_left);
1873 avio_wb32(pb, spherical_mapping->bound_right);
1875 case AV_SPHERICAL_CUBEMAP:
1876 avio_wb32(pb, 20); /* size */
1877 ffio_wfourcc(pb, "cbmp");
1878 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1879 avio_wb32(pb, 0); /* layout */
1880 avio_wb32(pb, spherical_mapping->padding); /* padding */
1883 update_size(pb, proj_pos);
1885 return update_size(pb, sv3d_pos);
1888 static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDecoderConfigurationRecord *dovi)
1890 avio_wb32(pb, 32); /* size = 8 + 24 */
1891 if (dovi->dv_profile > 7)
1892 ffio_wfourcc(pb, "dvvC");
1894 ffio_wfourcc(pb, "dvcC");
1895 avio_w8(pb, dovi->dv_version_major);
1896 avio_w8(pb, dovi->dv_version_minor);
1897 avio_wb16(pb, (dovi->dv_profile << 9) | (dovi->dv_level << 3) |
1898 (dovi->rpu_present_flag << 2) | (dovi->el_present_flag << 1) |
1899 dovi->bl_present_flag);
1900 avio_wb32(pb, (dovi->dv_bl_signal_compatibility_id << 28) | 0);
1902 avio_wb32(pb, 0); /* reserved */
1903 avio_wb32(pb, 0); /* reserved */
1904 avio_wb32(pb, 0); /* reserved */
1905 avio_wb32(pb, 0); /* reserved */
1906 av_log(s, AV_LOG_DEBUG, "DOVI in %s box, version: %d.%d, profile: %d, level: %d, "
1907 "rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
1908 dovi->dv_profile > 7 ? "dvvC" : "dvcC",
1909 dovi->dv_version_major, dovi->dv_version_minor,
1910 dovi->dv_profile, dovi->dv_level,
1911 dovi->rpu_present_flag,
1912 dovi->el_present_flag,
1913 dovi->bl_present_flag,
1914 dovi->dv_bl_signal_compatibility_id);
1915 return 32; /* 8 + 24 */
1918 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1921 ffio_wfourcc(pb, "clap");
1922 avio_wb32(pb, track->par->width); /* apertureWidth_N */
1923 avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1924 avio_wb32(pb, track->height); /* apertureHeight_N */
1925 avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1926 avio_wb32(pb, 0); /* horizOff_N (= 0) */
1927 avio_wb32(pb, 1); /* horizOff_D (= 1) */
1928 avio_wb32(pb, 0); /* vertOff_N (= 0) */
1929 avio_wb32(pb, 1); /* vertOff_D (= 1) */
1933 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1936 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1937 track->par->sample_aspect_ratio.den, INT_MAX);
1940 ffio_wfourcc(pb, "pasp");
1941 avio_wb32(pb, sar.num);
1942 avio_wb32(pb, sar.den);
1946 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1950 gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1952 av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1955 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1956 av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1958 av_assert0(track->mode == MODE_MOV);
1960 ffio_wfourcc(pb, "gama");
1961 avio_wb32(pb, gama);
1964 av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1969 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
1971 int64_t pos = avio_tell(pb);
1973 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1974 // Ref (MP4): ISO/IEC 14496-12:2012
1976 const uint8_t *icc_profile;
1977 size_t icc_profile_size;
1980 icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size);
1983 avio_wb32(pb, 12 + icc_profile_size);
1984 ffio_wfourcc(pb, "colr");
1985 ffio_wfourcc(pb, "prof");
1986 avio_write(pb, icc_profile, icc_profile_size);
1987 return 12 + icc_profile_size;
1990 av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
1994 /* We should only ever be called by MOV or MP4. */
1995 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1997 avio_wb32(pb, 0); /* size */
1998 ffio_wfourcc(pb, "colr");
1999 if (track->mode == MODE_MP4)
2000 ffio_wfourcc(pb, "nclx");
2002 ffio_wfourcc(pb, "nclc");
2003 // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED.
2004 // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See
2005 // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf
2006 avio_wb16(pb, track->par->color_primaries);
2007 avio_wb16(pb, track->par->color_trc);
2008 avio_wb16(pb, track->par->color_space);
2009 if (track->mode == MODE_MP4) {
2010 int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
2011 avio_w8(pb, full_range << 7);
2014 return update_size(pb, pos);
2017 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
2019 const uint8_t *side_data;
2020 const AVContentLightMetadata *content_light_metadata;
2022 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL);
2026 content_light_metadata = (const AVContentLightMetadata*)side_data;
2028 avio_wb32(pb, 12); // size
2029 ffio_wfourcc(pb, "clli");
2030 avio_wb16(pb, content_light_metadata->MaxCLL);
2031 avio_wb16(pb, content_light_metadata->MaxFALL);
2035 static inline int64_t rescale_mdcv(AVRational q, int b)
2037 return av_rescale(q.num, b, q.den);
2040 static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
2042 const int chroma_den = 50000;
2043 const int luma_den = 10000;
2044 const uint8_t *side_data;
2045 const AVMasteringDisplayMetadata *metadata;
2047 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
2048 metadata = (const AVMasteringDisplayMetadata*)side_data;
2049 if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
2053 avio_wb32(pb, 32); // size
2054 ffio_wfourcc(pb, "mdcv");
2055 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][0], chroma_den));
2056 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][1], chroma_den));
2057 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][0], chroma_den));
2058 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][1], chroma_den));
2059 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][0], chroma_den));
2060 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][1], chroma_den));
2061 avio_wb16(pb, rescale_mdcv(metadata->white_point[0], chroma_den));
2062 avio_wb16(pb, rescale_mdcv(metadata->white_point[1], chroma_den));
2063 avio_wb32(pb, rescale_mdcv(metadata->max_luminance, luma_den));
2064 avio_wb32(pb, rescale_mdcv(metadata->min_luminance, luma_den));
2068 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
2070 AVDictionaryEntry *encoder;
2071 int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
2072 || (track->par->width == 1440 && track->par->height == 1080)
2073 || (track->par->width == 1920 && track->par->height == 1080);
2075 if (track->mode == MODE_MOV &&
2076 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
2077 av_strlcpy(compressor_name, encoder->value, 32);
2078 } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
2079 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
2080 AVStream *st = track->st;
2081 int rate = defined_frame_rate(NULL, st);
2082 av_strlcatf(compressor_name, len, "XDCAM");
2083 if (track->par->format == AV_PIX_FMT_YUV422P) {
2084 av_strlcatf(compressor_name, len, " HD422");
2085 } else if(track->par->width == 1440) {
2086 av_strlcatf(compressor_name, len, " HD");
2088 av_strlcatf(compressor_name, len, " EX");
2090 av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
2092 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
2096 static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2098 int ret = AVERROR_BUG;
2099 int64_t pos = avio_tell(pb);
2100 char compressor_name[32] = { 0 };
2103 int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
2104 || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
2105 || track->par->codec_id == AV_CODEC_ID_V308
2106 || track->par->codec_id == AV_CODEC_ID_V408
2107 || track->par->codec_id == AV_CODEC_ID_V410
2108 || track->par->codec_id == AV_CODEC_ID_V210);
2110 avio_wb32(pb, 0); /* size */
2111 if (mov->encryption_scheme != MOV_ENC_NONE) {
2112 ffio_wfourcc(pb, "encv");
2114 avio_wl32(pb, track->tag); // store it byteswapped
2116 avio_wb32(pb, 0); /* Reserved */
2117 avio_wb16(pb, 0); /* Reserved */
2118 avio_wb16(pb, 1); /* Data-reference index */
2120 if (uncompressed_ycbcr) {
2121 avio_wb16(pb, 2); /* Codec stream version */
2123 avio_wb16(pb, 0); /* Codec stream version */
2125 avio_wb16(pb, 0); /* Codec stream revision (=0) */
2126 if (track->mode == MODE_MOV) {
2127 ffio_wfourcc(pb, "FFMP"); /* Vendor */
2128 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
2129 avio_wb32(pb, 0); /* Temporal Quality */
2130 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
2132 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
2133 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
2136 avio_wb32(pb, 0); /* Reserved */
2137 avio_wb32(pb, 0); /* Reserved */
2138 avio_wb32(pb, 0); /* Reserved */
2140 avio_wb16(pb, track->par->width); /* Video width */
2141 avio_wb16(pb, track->height); /* Video height */
2142 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
2143 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
2144 avio_wb32(pb, 0); /* Data size (= 0) */
2145 avio_wb16(pb, 1); /* Frame count (= 1) */
2147 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
2148 find_compressor(compressor_name, 32, track);
2149 avio_w8(pb, strlen(compressor_name));
2150 avio_write(pb, compressor_name, 31);
2152 if (track->mode == MODE_MOV &&
2153 (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2154 avio_wb16(pb, 0x18);
2155 else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2156 avio_wb16(pb, track->par->bits_per_coded_sample |
2157 (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2159 avio_wb16(pb, 0x18); /* Reserved */
2161 if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2162 int pal_size = 1 << track->par->bits_per_coded_sample;
2164 avio_wb16(pb, 0); /* Color table ID */
2165 avio_wb32(pb, 0); /* Color table seed */
2166 avio_wb16(pb, 0x8000); /* Color table flags */
2167 avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2168 for (i = 0; i < pal_size; i++) {
2169 uint32_t rgb = track->palette[i];
2170 uint16_t r = (rgb >> 16) & 0xff;
2171 uint16_t g = (rgb >> 8) & 0xff;
2172 uint16_t b = rgb & 0xff;
2174 avio_wb16(pb, (r << 8) | r);
2175 avio_wb16(pb, (g << 8) | g);
2176 avio_wb16(pb, (b << 8) | b);
2179 avio_wb16(pb, 0xffff); /* Reserved */
2181 if (track->tag == MKTAG('m','p','4','v'))
2182 mov_write_esds_tag(pb, track);
2183 else if (track->par->codec_id == AV_CODEC_ID_H263)
2184 mov_write_d263_tag(pb);
2185 else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2186 track->par->codec_id == AV_CODEC_ID_SVQ3) {
2187 mov_write_extradata_tag(pb, track);
2189 } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2190 mov_write_avid_tag(pb, track);
2192 } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2193 mov_write_hvcc_tag(pb, track);
2194 else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2195 mov_write_avcc_tag(pb, track);
2196 if (track->mode == MODE_IPOD)
2197 mov_write_uuid_tag_ipod(pb);
2198 } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2199 mov_write_vpcc_tag(mov->fc, pb, track);
2200 } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2201 mov_write_av1c_tag(pb, track);
2202 } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2203 mov_write_dvc1_tag(pb, track);
2204 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2205 track->par->codec_id == AV_CODEC_ID_VP6A) {
2206 /* Don't write any potential extradata here - the cropping
2207 * is signalled via the normal width/height fields. */
2208 } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2209 if (track->par->codec_tag == MKTAG('R','1','0','k'))
2210 mov_write_dpxe_tag(pb, track);
2211 } else if (track->vos_len > 0)
2212 mov_write_glbl_tag(pb, track);
2214 if (track->par->codec_id != AV_CODEC_ID_H264 &&
2215 track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2216 track->par->codec_id != AV_CODEC_ID_DNXHD) {
2217 int field_order = track->par->field_order;
2219 if (field_order != AV_FIELD_UNKNOWN)
2220 mov_write_fiel_tag(pb, track, field_order);
2223 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2224 if (track->mode == MODE_MOV)
2225 mov_write_gama_tag(s, pb, track, mov->gamma);
2227 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2229 if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2230 int has_color_info = track->par->color_primaries != AVCOL_PRI_UNSPECIFIED &&
2231 track->par->color_trc != AVCOL_TRC_UNSPECIFIED &&
2232 track->par->color_space != AVCOL_SPC_UNSPECIFIED;
2233 if (has_color_info || mov->flags & FF_MOV_FLAG_WRITE_COLR ||
2234 av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, NULL)) {
2235 int prefer_icc = mov->flags & FF_MOV_FLAG_PREFER_ICC || !has_color_info;
2236 mov_write_colr_tag(pb, track, prefer_icc);
2237 } else if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2238 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2241 if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2242 mov_write_clli_tag(pb, track);
2243 mov_write_mdcv_tag(pb, track);
2246 if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2247 AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
2248 AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
2249 AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)
2250 av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL);
2253 mov_write_st3d_tag(s, pb, stereo_3d);
2254 if (spherical_mapping)
2255 mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2257 mov_write_dvcc_dvvc_tag(s, pb, dovi);
2260 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2261 mov_write_pasp_tag(pb, track);
2264 if (uncompressed_ycbcr){
2265 mov_write_clap_tag(pb, track);
2268 if (mov->encryption_scheme != MOV_ENC_NONE) {
2269 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2272 if (track->mode == MODE_MP4 &&
2273 ((ret = mov_write_btrt_tag(pb, track)) < 0))
2276 /* extra padding for avid stsd */
2277 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2281 return update_size(pb, pos);
2284 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2286 int64_t pos = avio_tell(pb);
2287 avio_wb32(pb, 0); /* size */
2288 ffio_wfourcc(pb, "rtp ");
2289 avio_wb32(pb, 0); /* Reserved */
2290 avio_wb16(pb, 0); /* Reserved */
2291 avio_wb16(pb, 1); /* Data-reference index */
2293 avio_wb16(pb, 1); /* Hint track version */
2294 avio_wb16(pb, 1); /* Highest compatible version */
2295 avio_wb32(pb, track->max_packet_size); /* Max packet size */
2297 avio_wb32(pb, 12); /* size */
2298 ffio_wfourcc(pb, "tims");
2299 avio_wb32(pb, track->timescale);
2301 return update_size(pb, pos);
2304 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2306 uint64_t str_size =strlen(reel_name);
2307 int64_t pos = avio_tell(pb);
2309 if (str_size >= UINT16_MAX){
2310 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2312 return AVERROR(EINVAL);
2315 avio_wb32(pb, 0); /* size */
2316 ffio_wfourcc(pb, "name"); /* Data format */
2317 avio_wb16(pb, str_size); /* string size */
2318 avio_wb16(pb, track->language); /* langcode */
2319 avio_write(pb, reel_name, str_size); /* reel name */
2320 return update_size(pb,pos);
2323 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2325 int64_t pos = avio_tell(pb);
2329 AVDictionaryEntry *t = NULL;
2331 if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2332 av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2333 return AVERROR(EINVAL);
2335 frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2336 nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2339 if (nb_frames > 255) {
2340 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2341 return AVERROR(EINVAL);
2344 avio_wb32(pb, 0); /* size */
2345 ffio_wfourcc(pb, "tmcd"); /* Data format */
2346 avio_wb32(pb, 0); /* Reserved */
2347 avio_wb32(pb, 1); /* Data reference index */
2348 avio_wb32(pb, 0); /* Flags */
2349 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2350 avio_wb32(pb, track->timescale); /* Timescale */
2351 avio_wb32(pb, frame_duration); /* Frame duration */
2352 avio_w8(pb, nb_frames); /* Number of frames */
2353 avio_w8(pb, 0); /* Reserved */
2355 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2356 if (t && utf8len(t->value) && track->mode != MODE_MP4)
2357 mov_write_source_reference_tag(pb, track, t->value);
2359 avio_wb16(pb, 0); /* zero size */
2362 avio_wb32(pb, 0); /* size */
2363 ffio_wfourcc(pb, "tmcd"); /* Data format */
2364 avio_wb32(pb, 0); /* Reserved */
2365 avio_wb32(pb, 1); /* Data reference index */
2366 if (track->par->extradata_size)
2367 avio_write(pb, track->par->extradata, track->par->extradata_size);
2369 return update_size(pb, pos);
2372 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2374 int64_t pos = avio_tell(pb);
2375 avio_wb32(pb, 0); /* size */
2376 ffio_wfourcc(pb, "gpmd");
2377 avio_wb32(pb, 0); /* Reserved */
2378 avio_wb16(pb, 0); /* Reserved */
2379 avio_wb16(pb, 1); /* Data-reference index */
2380 avio_wb32(pb, 0); /* Reserved */
2381 return update_size(pb, pos);
2384 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2386 int64_t pos = avio_tell(pb);
2388 avio_wb32(pb, 0); /* size */
2389 ffio_wfourcc(pb, "stsd");
2390 avio_wb32(pb, 0); /* version & flags */
2391 avio_wb32(pb, 1); /* entry count */
2392 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2393 ret = mov_write_video_tag(s, pb, mov, track);
2394 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2395 ret = mov_write_audio_tag(s, pb, mov, track);
2396 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2397 ret = mov_write_subtitle_tag(pb, track);
2398 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2399 ret = mov_write_rtp_tag(pb, track);
2400 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2401 ret = mov_write_tmcd_tag(pb, track);
2402 else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2403 ret = mov_write_gpmd_tag(pb, track);
2408 return update_size(pb, pos);
2411 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2413 MOVMuxContext *mov = s->priv_data;
2414 MOVStts *ctts_entries;
2415 uint32_t entries = 0;
2419 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2421 return AVERROR(ENOMEM);
2422 ctts_entries[0].count = 1;
2423 ctts_entries[0].duration = track->cluster[0].cts;
2424 for (i = 1; i < track->entry; i++) {
2425 if (track->cluster[i].cts == ctts_entries[entries].duration) {
2426 ctts_entries[entries].count++; /* compress */
2429 ctts_entries[entries].duration = track->cluster[i].cts;
2430 ctts_entries[entries].count = 1;
2433 entries++; /* last one */
2434 atom_size = 16 + (entries * 8);
2435 avio_wb32(pb, atom_size); /* size */
2436 ffio_wfourcc(pb, "ctts");
2437 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2438 avio_w8(pb, 1); /* version */
2440 avio_w8(pb, 0); /* version */
2441 avio_wb24(pb, 0); /* flags */
2442 avio_wb32(pb, entries); /* entry count */
2443 for (i = 0; i < entries; i++) {
2444 avio_wb32(pb, ctts_entries[i].count);
2445 avio_wb32(pb, ctts_entries[i].duration);
2447 av_free(ctts_entries);
2451 /* Time to sample atom */
2452 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2454 MOVStts *stts_entries = NULL;
2455 uint32_t entries = -1;
2459 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2460 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2462 return AVERROR(ENOMEM);
2463 stts_entries[0].count = track->sample_count;
2464 stts_entries[0].duration = 1;
2468 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2470 return AVERROR(ENOMEM);
2472 for (i = 0; i < track->entry; i++) {
2473 int duration = get_cluster_duration(track, i);
2474 if (i && duration == stts_entries[entries].duration) {
2475 stts_entries[entries].count++; /* compress */
2478 stts_entries[entries].duration = duration;
2479 stts_entries[entries].count = 1;
2482 entries++; /* last one */
2484 atom_size = 16 + (entries * 8);
2485 avio_wb32(pb, atom_size); /* size */
2486 ffio_wfourcc(pb, "stts");
2487 avio_wb32(pb, 0); /* version & flags */
2488 avio_wb32(pb, entries); /* entry count */
2489 for (i = 0; i < entries; i++) {
2490 avio_wb32(pb, stts_entries[i].count);
2491 avio_wb32(pb, stts_entries[i].duration);
2493 av_free(stts_entries);
2497 static int mov_write_dref_tag(AVIOContext *pb)
2499 avio_wb32(pb, 28); /* size */
2500 ffio_wfourcc(pb, "dref");
2501 avio_wb32(pb, 0); /* version & flags */
2502 avio_wb32(pb, 1); /* entry count */
2504 avio_wb32(pb, 0xc); /* size */
2505 //FIXME add the alis and rsrc atom
2506 ffio_wfourcc(pb, "url ");
2507 avio_wb32(pb, 1); /* version & flags */
2512 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2516 int16_t roll_distance;
2517 int group_description_index;
2520 struct sgpd_entry *sgpd_entries = NULL;
2525 const int OPUS_SEEK_PREROLL_MS = 80;
2526 int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2527 (AVRational){1, 1000},
2528 (AVRational){1, 48000});
2533 sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2535 return AVERROR(ENOMEM);
2537 av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2539 if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2540 for (i = 0; i < track->entry; i++) {
2541 int roll_samples_remaining = roll_samples;
2543 for (j = i - 1; j >= 0; j--) {
2544 roll_samples_remaining -= get_cluster_duration(track, j);
2546 if (roll_samples_remaining <= 0)
2549 /* We don't have enough preceeding samples to compute a valid
2550 roll_distance here, so this sample can't be independently
2552 if (roll_samples_remaining > 0)
2554 /* Verify distance is a maximum of 32 (2.5ms) packets. */
2556 return AVERROR_INVALIDDATA;
2557 if (i && distance == sgpd_entries[entries].roll_distance) {
2558 sgpd_entries[entries].count++;
2561 sgpd_entries[entries].count = 1;
2562 sgpd_entries[entries].roll_distance = distance;
2563 sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2568 sgpd_entries[entries].count = track->sample_count;
2569 sgpd_entries[entries].roll_distance = 1;
2570 sgpd_entries[entries].group_description_index = ++group;
2575 av_free(sgpd_entries);
2579 /* Write sgpd tag */
2580 avio_wb32(pb, 24 + (group * 2)); /* size */
2581 ffio_wfourcc(pb, "sgpd");
2582 avio_wb32(pb, 1 << 24); /* fullbox */
2583 ffio_wfourcc(pb, "roll");
2584 avio_wb32(pb, 2); /* default_length */
2585 avio_wb32(pb, group); /* entry_count */
2586 for (i = 0; i < entries; i++) {
2587 if (sgpd_entries[i].group_description_index) {
2588 avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2592 /* Write sbgp tag */
2593 avio_wb32(pb, 20 + (entries * 8)); /* size */
2594 ffio_wfourcc(pb, "sbgp");
2595 avio_wb32(pb, 0); /* fullbox */
2596 ffio_wfourcc(pb, "roll");
2597 avio_wb32(pb, entries); /* entry_count */
2598 for (i = 0; i < entries; i++) {
2599 avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2600 avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2603 av_free(sgpd_entries);
2607 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2609 int64_t pos = avio_tell(pb);
2612 avio_wb32(pb, 0); /* size */
2613 ffio_wfourcc(pb, "stbl");
2614 if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2616 mov_write_stts_tag(pb, track);
2617 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2618 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
2619 track->par->codec_id == AV_CODEC_ID_MPEGH_3D_AUDIO ||
2620 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2621 track->has_keyframes && track->has_keyframes < track->entry)
2622 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2623 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2624 mov_write_sdtp_tag(pb, track);
2625 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2626 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2627 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2628 track->flags & MOV_TRACK_CTTS && track->entry) {
2630 if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2633 mov_write_stsc_tag(pb, track);
2634 mov_write_stsz_tag(pb, track);
2635 mov_write_stco_tag(pb, track);
2636 if (track->cenc.aes_ctr) {
2637 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2639 if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2640 mov_preroll_write_stbl_atoms(pb, track);
2642 return update_size(pb, pos);
2645 static int mov_write_dinf_tag(AVIOContext *pb)
2647 int64_t pos = avio_tell(pb);
2648 avio_wb32(pb, 0); /* size */
2649 ffio_wfourcc(pb, "dinf");
2650 mov_write_dref_tag(pb);
2651 return update_size(pb, pos);
2654 static int mov_write_nmhd_tag(AVIOContext *pb)
2657 ffio_wfourcc(pb, "nmhd");
2662 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2664 int64_t pos = avio_tell(pb);
2665 const char *font = "Lucida Grande";
2666 avio_wb32(pb, 0); /* size */
2667 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2668 avio_wb32(pb, 0); /* version & flags */
2669 avio_wb16(pb, 0); /* text font */
2670 avio_wb16(pb, 0); /* text face */
2671 avio_wb16(pb, 12); /* text size */
2672 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2673 avio_wb16(pb, 0x0000); /* text color (red) */
2674 avio_wb16(pb, 0x0000); /* text color (green) */
2675 avio_wb16(pb, 0x0000); /* text color (blue) */
2676 avio_wb16(pb, 0xffff); /* background color (red) */
2677 avio_wb16(pb, 0xffff); /* background color (green) */
2678 avio_wb16(pb, 0xffff); /* background color (blue) */
2679 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2680 avio_write(pb, font, strlen(font)); /* font name */
2681 return update_size(pb, pos);
2684 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2686 int64_t pos = avio_tell(pb);
2687 avio_wb32(pb, 0); /* size */
2688 ffio_wfourcc(pb, "gmhd");
2689 avio_wb32(pb, 0x18); /* gmin size */
2690 ffio_wfourcc(pb, "gmin");/* generic media info */
2691 avio_wb32(pb, 0); /* version & flags */
2692 avio_wb16(pb, 0x40); /* graphics mode = */
2693 avio_wb16(pb, 0x8000); /* opColor (r?) */
2694 avio_wb16(pb, 0x8000); /* opColor (g?) */
2695 avio_wb16(pb, 0x8000); /* opColor (b?) */
2696 avio_wb16(pb, 0); /* balance */
2697 avio_wb16(pb, 0); /* reserved */
2700 * This special text atom is required for
2701 * Apple Quicktime chapters. The contents
2702 * don't appear to be documented, so the
2703 * bytes are copied verbatim.
2705 if (track->tag != MKTAG('c','6','0','8')) {
2706 avio_wb32(pb, 0x2C); /* size */
2707 ffio_wfourcc(pb, "text");
2708 avio_wb16(pb, 0x01);
2709 avio_wb32(pb, 0x00);
2710 avio_wb32(pb, 0x00);
2711 avio_wb32(pb, 0x00);
2712 avio_wb32(pb, 0x01);
2713 avio_wb32(pb, 0x00);
2714 avio_wb32(pb, 0x00);
2715 avio_wb32(pb, 0x00);
2716 avio_wb32(pb, 0x00004000);
2717 avio_wb16(pb, 0x0000);
2720 if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2721 int64_t tmcd_pos = avio_tell(pb);
2722 avio_wb32(pb, 0); /* size */
2723 ffio_wfourcc(pb, "tmcd");
2724 mov_write_tcmi_tag(pb, track);
2725 update_size(pb, tmcd_pos);
2726 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2727 int64_t gpmd_pos = avio_tell(pb);
2728 avio_wb32(pb, 0); /* size */
2729 ffio_wfourcc(pb, "gpmd");
2730 avio_wb32(pb, 0); /* version */
2731 update_size(pb, gpmd_pos);
2733 return update_size(pb, pos);
2736 static int mov_write_smhd_tag(AVIOContext *pb)
2738 avio_wb32(pb, 16); /* size */
2739 ffio_wfourcc(pb, "smhd");
2740 avio_wb32(pb, 0); /* version & flags */
2741 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2742 avio_wb16(pb, 0); /* reserved */
2746 static int mov_write_vmhd_tag(AVIOContext *pb)
2748 avio_wb32(pb, 0x14); /* size (always 0x14) */
2749 ffio_wfourcc(pb, "vmhd");
2750 avio_wb32(pb, 0x01); /* version & flags */
2751 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2755 static int is_clcp_track(MOVTrack *track)
2757 return track->tag == MKTAG('c','7','0','8') ||
2758 track->tag == MKTAG('c','6','0','8');
2761 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2763 MOVMuxContext *mov = s->priv_data;
2764 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2765 int64_t pos = avio_tell(pb);
2769 descr = "DataHandler";
2772 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2773 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2775 descr = "VideoHandler";
2776 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2778 descr = "SoundHandler";
2779 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2780 if (is_clcp_track(track)) {
2782 descr = "ClosedCaptionHandler";
2784 if (track->tag == MKTAG('t','x','3','g')) {
2786 } else if (track->tag == MKTAG('m','p','4','s')) {
2791 descr = "SubtitleHandler";
2793 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2795 descr = "HintHandler";
2796 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2798 descr = "TimeCodeHandler";
2799 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2801 descr = "GoPro MET"; // GoPro Metadata
2803 av_log(s, AV_LOG_WARNING,
2804 "Unknown hldr_type for %s, writing dummy values\n",
2805 av_fourcc2str(track->par->codec_tag));
2808 // hdlr.name is used by some players to identify the content title
2809 // of the track. So if an alternate handler description is
2810 // specified, use it.
2811 AVDictionaryEntry *t;
2812 t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2813 if (t && utf8len(t->value))
2818 if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2821 avio_wb32(pb, 0); /* size */
2822 ffio_wfourcc(pb, "hdlr");
2823 avio_wb32(pb, 0); /* Version & flags */
2824 avio_write(pb, hdlr, 4); /* handler */
2825 ffio_wfourcc(pb, hdlr_type); /* handler type */
2826 avio_wb32(pb, 0); /* reserved */
2827 avio_wb32(pb, 0); /* reserved */
2828 avio_wb32(pb, 0); /* reserved */
2829 if (!track || track->mode == MODE_MOV)
2830 avio_w8(pb, strlen(descr)); /* pascal string */
2831 avio_write(pb, descr, strlen(descr)); /* handler description */
2832 if (track && track->mode != MODE_MOV)
2833 avio_w8(pb, 0); /* c string */
2834 return update_size(pb, pos);
2837 static int mov_write_hmhd_tag(AVIOContext *pb)
2839 /* This atom must be present, but leaving the values at zero
2840 * seems harmless. */
2841 avio_wb32(pb, 28); /* size */
2842 ffio_wfourcc(pb, "hmhd");
2843 avio_wb32(pb, 0); /* version, flags */
2844 avio_wb16(pb, 0); /* maxPDUsize */
2845 avio_wb16(pb, 0); /* avgPDUsize */
2846 avio_wb32(pb, 0); /* maxbitrate */
2847 avio_wb32(pb, 0); /* avgbitrate */
2848 avio_wb32(pb, 0); /* reserved */
2852 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2854 int64_t pos = avio_tell(pb);
2857 avio_wb32(pb, 0); /* size */
2858 ffio_wfourcc(pb, "minf");
2859 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2860 mov_write_vmhd_tag(pb);
2861 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2862 mov_write_smhd_tag(pb);
2863 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2864 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2865 mov_write_gmhd_tag(pb, track);
2867 mov_write_nmhd_tag(pb);
2869 } else if (track->tag == MKTAG('r','t','p',' ')) {
2870 mov_write_hmhd_tag(pb);
2871 } else if (track->tag == MKTAG('t','m','c','d')) {
2872 if (track->mode != MODE_MOV)
2873 mov_write_nmhd_tag(pb);
2875 mov_write_gmhd_tag(pb, track);
2876 } else if (track->tag == MKTAG('g','p','m','d')) {
2877 mov_write_gmhd_tag(pb, track);
2879 if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2880 mov_write_hdlr_tag(s, pb, NULL);
2881 mov_write_dinf_tag(pb);
2882 if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2884 return update_size(pb, pos);
2887 static void get_pts_range(MOVMuxContext *mov, MOVTrack *track,
2888 int64_t *start, int64_t *end)
2890 if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) {
2891 // tmcd tracks gets track_duration set in mov_write_moov_tag from
2892 // another track's duration, while the end_pts may be left at zero.
2893 // Calculate the pts duration for that track instead.
2894 get_pts_range(mov, &mov->tracks[track->src_track], start, end);
2895 *start = av_rescale(*start, track->timescale,
2896 mov->tracks[track->src_track].timescale);
2897 *end = av_rescale(*end, track->timescale,
2898 mov->tracks[track->src_track].timescale);
2901 if (track->end_pts != AV_NOPTS_VALUE &&
2902 track->start_dts != AV_NOPTS_VALUE &&
2903 track->start_cts != AV_NOPTS_VALUE) {
2904 *start = track->start_dts + track->start_cts;
2905 *end = track->end_pts;
2909 *end = track->track_duration;
2912 static int64_t calc_samples_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2915 get_pts_range(mov, track, &start, &end);
2919 // Calculate the actual duration of the track, after edits.
2920 // If it starts with a pts < 0, that is removed by the edit list.
2921 // If it starts with a pts > 0, the edit list adds a delay before that.
2922 // Thus, with edit lists enabled, the post-edit output of the file is
2923 // starting with pts=0.
2924 static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2927 get_pts_range(mov, track, &start, &end);
2928 if (mov->use_editlist != 0)
2933 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2936 int64_t duration = calc_pts_duration(mov, track);
2937 int version = duration < INT32_MAX ? 0 : 1;
2939 if (track->mode == MODE_ISM)
2942 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2943 ffio_wfourcc(pb, "mdhd");
2944 avio_w8(pb, version);
2945 avio_wb24(pb, 0); /* flags */
2947 avio_wb64(pb, track->time);
2948 avio_wb64(pb, track->time);
2950 avio_wb32(pb, track->time); /* creation time */
2951 avio_wb32(pb, track->time); /* modification time */
2953 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2954 if (!track->entry && mov->mode == MODE_ISM)
2955 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2956 else if (!track->entry)
2957 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2959 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */
2960 avio_wb16(pb, track->language); /* language */
2961 avio_wb16(pb, 0); /* reserved (quality) */
2963 if (version != 0 && track->mode == MODE_MOV) {
2964 av_log(NULL, AV_LOG_ERROR,
2965 "FATAL error, file duration too long for timebase, this file will not be\n"
2966 "playable with QuickTime. Choose a different timebase with "
2967 "-video_track_timescale or a different container format\n");
2973 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2974 MOVMuxContext *mov, MOVTrack *track)
2976 int64_t pos = avio_tell(pb);
2979 avio_wb32(pb, 0); /* size */
2980 ffio_wfourcc(pb, "mdia");
2981 mov_write_mdhd_tag(pb, mov, track);
2982 mov_write_hdlr_tag(s, pb, track);
2983 if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2985 return update_size(pb, pos);
2988 /* transformation matrix
2992 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2993 int16_t d, int16_t tx, int16_t ty)
2995 avio_wb32(pb, a << 16); /* 16.16 format */
2996 avio_wb32(pb, b << 16); /* 16.16 format */
2997 avio_wb32(pb, 0); /* u in 2.30 format */
2998 avio_wb32(pb, c << 16); /* 16.16 format */
2999 avio_wb32(pb, d << 16); /* 16.16 format */
3000 avio_wb32(pb, 0); /* v in 2.30 format */
3001 avio_wb32(pb, tx << 16); /* 16.16 format */
3002 avio_wb32(pb, ty << 16); /* 16.16 format */
3003 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
3006 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3007 MOVTrack *track, AVStream *st)
3009 int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
3010 MOV_TIMESCALE, track->timescale,
3012 int version = duration < INT32_MAX ? 0 : 1;
3013 int flags = MOV_TKHD_FLAG_IN_MOVIE;
3016 uint32_t *display_matrix = NULL;
3017 size_t display_matrix_size;
3021 if (mov->per_stream_grouping)
3024 group = st->codecpar->codec_type;
3026 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
3027 &display_matrix_size);
3028 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
3029 display_matrix = NULL;
3032 if (track->flags & MOV_TRACK_ENABLED)
3033 flags |= MOV_TKHD_FLAG_ENABLED;
3035 if (track->mode == MODE_ISM)
3038 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
3039 ffio_wfourcc(pb, "tkhd");
3040 avio_w8(pb, version);
3041 avio_wb24(pb, flags);
3043 avio_wb64(pb, track->time);
3044 avio_wb64(pb, track->time);
3046 avio_wb32(pb, track->time); /* creation time */
3047 avio_wb32(pb, track->time); /* modification time */
3049 avio_wb32(pb, track->track_id); /* track-id */
3050 avio_wb32(pb, 0); /* reserved */
3051 if (!track->entry && mov->mode == MODE_ISM)
3052 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
3053 else if (!track->entry)
3054 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
3056 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
3058 avio_wb32(pb, 0); /* reserved */
3059 avio_wb32(pb, 0); /* reserved */
3060 avio_wb16(pb, 0); /* layer */
3061 avio_wb16(pb, group); /* alternate group) */
3062 /* Volume, only for audio */
3063 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
3064 avio_wb16(pb, 0x0100);
3067 avio_wb16(pb, 0); /* reserved */
3069 /* Matrix structure */
3070 if (display_matrix) {
3071 for (i = 0; i < 9; i++)
3072 avio_wb32(pb, display_matrix[i]);
3074 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3076 /* Track width and height, for visual only */
3077 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
3078 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
3079 int64_t track_width_1616;
3080 if (track->mode == MODE_MOV) {
3081 track_width_1616 = track->par->width * 0x10000ULL;
3083 track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
3084 track->par->width * 0x10000LL,
3085 st->sample_aspect_ratio.den);
3086 if (!track_width_1616 ||
3087 track->height != track->par->height ||
3088 track_width_1616 > UINT32_MAX)
3089 track_width_1616 = track->par->width * 0x10000ULL;
3091 if (track_width_1616 > UINT32_MAX) {
3092 av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
3093 track_width_1616 = 0;
3095 avio_wb32(pb, track_width_1616);
3096 if (track->height > 0xFFFF) {
3097 av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
3100 avio_wb32(pb, track->height * 0x10000U);
3108 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
3110 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
3111 track->par->sample_aspect_ratio.den);
3113 int64_t pos = avio_tell(pb);
3115 avio_wb32(pb, 0); /* size */
3116 ffio_wfourcc(pb, "tapt");
3119 ffio_wfourcc(pb, "clef");
3121 avio_wb32(pb, width << 16);
3122 avio_wb32(pb, track->par->height << 16);
3125 ffio_wfourcc(pb, "prof");
3127 avio_wb32(pb, width << 16);
3128 avio_wb32(pb, track->par->height << 16);
3131 ffio_wfourcc(pb, "enof");
3133 avio_wb32(pb, track->par->width << 16);
3134 avio_wb32(pb, track->par->height << 16);
3136 return update_size(pb, pos);
3139 // This box seems important for the psp playback ... without it the movie seems to hang
3140 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
3143 int64_t duration = av_rescale_rnd(calc_samples_pts_duration(mov, track),
3144 MOV_TIMESCALE, track->timescale,
3146 int version = duration < INT32_MAX ? 0 : 1;
3147 int entry_size, entry_count, size;
3148 int64_t delay, start_ct = track->start_cts;
3149 int64_t start_dts = track->start_dts;
3152 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
3154 av_log(mov->fc, AV_LOG_DEBUG,
3155 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
3156 track->cluster[0].dts, track->cluster[0].cts,
3157 start_dts, start_ct, track->track_id);
3158 start_dts = track->cluster[0].dts;
3159 start_ct = track->cluster[0].cts;
3163 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
3164 track->timescale, AV_ROUND_DOWN);
3165 version |= delay < INT32_MAX ? 0 : 1;
3167 entry_size = (version == 1) ? 20 : 12;
3168 entry_count = 1 + (delay > 0);
3169 size = 24 + entry_count * entry_size;
3171 /* write the atom data */
3172 avio_wb32(pb, size);
3173 ffio_wfourcc(pb, "edts");
3174 avio_wb32(pb, size - 8);
3175 ffio_wfourcc(pb, "elst");
3176 avio_w8(pb, version);
3177 avio_wb24(pb, 0); /* flags */
3179 avio_wb32(pb, entry_count);
3180 if (delay > 0) { /* add an empty edit to delay presentation */
3181 /* In the positive delay case, the delay includes the cts
3182 * offset, and the second edit list entry below trims out
3183 * the same amount from the actual content. This makes sure
3184 * that the offset last sample is included in the edit
3185 * list duration as well. */
3187 avio_wb64(pb, delay);
3190 avio_wb32(pb, delay);
3193 avio_wb32(pb, 0x00010000);
3195 /* Avoid accidentally ending up with start_ct = -1 which has got a
3196 * special meaning. Normally start_ct should end up positive or zero
3197 * here, but use FFMIN in case dts is a small positive integer
3198 * rounded to 0 when represented in MOV_TIMESCALE units. */
3199 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3200 start_ct = -FFMIN(start_dts, 0);
3201 /* Note, this delay is calculated from the pts of the first sample,
3202 * ensuring that we don't reduce the duration for cases with
3207 /* For fragmented files, we don't know the full length yet. Setting
3208 * duration to 0 allows us to only specify the offset, including
3209 * the rest of the content (from all future fragments) without specifying
3210 * an explicit duration. */
3211 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3216 avio_wb64(pb, duration);
3217 avio_wb64(pb, start_ct);
3219 avio_wb32(pb, duration);
3220 avio_wb32(pb, start_ct);
3222 avio_wb32(pb, 0x00010000);
3226 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3228 avio_wb32(pb, 20); // size
3229 ffio_wfourcc(pb, "tref");
3230 avio_wb32(pb, 12); // size (subatom)
3231 avio_wl32(pb, track->tref_tag);
3232 avio_wb32(pb, track->tref_id);
3236 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3237 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
3239 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3240 ffio_wfourcc(pb, "uuid");
3241 ffio_wfourcc(pb, "USMT");
3242 avio_wb32(pb, 0x21d24fce);
3243 avio_wb32(pb, 0xbb88695c);
3244 avio_wb32(pb, 0xfac9c740);
3245 avio_wb32(pb, 0x1c); // another size here!
3246 ffio_wfourcc(pb, "MTDT");
3247 avio_wb32(pb, 0x00010012);
3248 avio_wb32(pb, 0x0a);
3249 avio_wb32(pb, 0x55c40000);
3255 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3257 AVFormatContext *ctx = track->rtp_ctx;
3258 char buf[1000] = "";
3261 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3262 NULL, NULL, 0, 0, ctx);
3263 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3266 avio_wb32(pb, len + 24);
3267 ffio_wfourcc(pb, "udta");
3268 avio_wb32(pb, len + 16);
3269 ffio_wfourcc(pb, "hnti");
3270 avio_wb32(pb, len + 8);
3271 ffio_wfourcc(pb, "sdp ");
3272 avio_write(pb, buf, len);
3276 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
3277 const char *tag, const char *str)
3279 int64_t pos = avio_tell(pb);
3280 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3281 if (!t || !utf8len(t->value))
3284 avio_wb32(pb, 0); /* size */
3285 ffio_wfourcc(pb, tag); /* type */
3286 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3287 return update_size(pb, pos);
3290 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3293 AVIOContext *pb_buf;
3300 ret = avio_open_dyn_buf(&pb_buf);
3304 if (mov->mode & (MODE_MP4|MODE_MOV))
3305 mov_write_track_metadata(pb_buf, st, "name", "title");
3307 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3308 avio_wb32(pb, size + 8);
3309 ffio_wfourcc(pb, "udta");
3310 avio_write(pb, buf, size);
3312 ffio_free_dyn_buf(&pb_buf);
3317 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
3318 MOVTrack *track, AVStream *st)
3320 int64_t pos = avio_tell(pb);
3321 int entry_backup = track->entry;
3322 int chunk_backup = track->chunkCount;
3325 /* If we want to have an empty moov, but some samples already have been
3326 * buffered (delay_moov), pretend that no samples have been written yet. */
3327 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3328 track->chunkCount = track->entry = 0;
3330 avio_wb32(pb, 0); /* size */
3331 ffio_wfourcc(pb, "trak");
3332 mov_write_tkhd_tag(pb, mov, track, st);
3334 av_assert2(mov->use_editlist >= 0);
3336 if (track->start_dts != AV_NOPTS_VALUE) {
3337 if (mov->use_editlist)
3338 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3339 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3340 av_log(mov->fc, AV_LOG_WARNING,
3341 "Not writing any edit list even though one would have been required\n");
3344 if (track->tref_tag)
3345 mov_write_tref_tag(pb, track);
3347 if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3349 if (track->mode == MODE_PSP)
3350 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3351 if (track->tag == MKTAG('r','t','p',' '))
3352 mov_write_udta_sdp(pb, track);
3353 if (track->mode == MODE_MOV) {
3354 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3355 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3356 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3357 mov_write_tapt_tag(pb, track);
3360 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3361 mov_write_tapt_tag(pb, track);
3364 mov_write_track_udta_tag(pb, mov, st);
3365 track->entry = entry_backup;
3366 track->chunkCount = chunk_backup;
3367 return update_size(pb, pos);
3370 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3372 int i, has_audio = 0, has_video = 0;
3373 int64_t pos = avio_tell(pb);
3374 int audio_profile = mov->iods_audio_profile;
3375 int video_profile = mov->iods_video_profile;
3376 for (i = 0; i < mov->nb_streams; i++) {
3377 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3378 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3379 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3382 if (audio_profile < 0)
3383 audio_profile = 0xFF - has_audio;
3384 if (video_profile < 0)
3385 video_profile = 0xFF - has_video;
3386 avio_wb32(pb, 0x0); /* size */
3387 ffio_wfourcc(pb, "iods");
3388 avio_wb32(pb, 0); /* version & flags */
3389 put_descr(pb, 0x10, 7);
3390 avio_wb16(pb, 0x004f);
3393 avio_w8(pb, audio_profile);
3394 avio_w8(pb, video_profile);
3396 return update_size(pb, pos);
3399 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3401 avio_wb32(pb, 0x20); /* size */
3402 ffio_wfourcc(pb, "trex");
3403 avio_wb32(pb, 0); /* version & flags */
3404 avio_wb32(pb, track->track_id); /* track ID */
3405 avio_wb32(pb, 1); /* default sample description index */
3406 avio_wb32(pb, 0); /* default sample duration */
3407 avio_wb32(pb, 0); /* default sample size */
3408 avio_wb32(pb, 0); /* default sample flags */
3412 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3414 int64_t pos = avio_tell(pb);
3416 avio_wb32(pb, 0x0); /* size */
3417 ffio_wfourcc(pb, "mvex");
3418 for (i = 0; i < mov->nb_streams; i++)
3419 mov_write_trex_tag(pb, &mov->tracks[i]);
3420 return update_size(pb, pos);
3423 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3425 int max_track_id = 1, i;
3426 int64_t max_track_len = 0;
3429 for (i = 0; i < mov->nb_streams; i++) {
3430 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3431 int64_t max_track_len_temp = av_rescale_rnd(
3432 calc_pts_duration(mov, &mov->tracks[i]),
3434 mov->tracks[i].timescale,
3436 if (max_track_len < max_track_len_temp)
3437 max_track_len = max_track_len_temp;
3438 if (max_track_id < mov->tracks[i].track_id)
3439 max_track_id = mov->tracks[i].track_id;
3442 /* If using delay_moov, make sure the output is the same as if no
3443 * samples had been written yet. */
3444 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3449 version = max_track_len < UINT32_MAX ? 0 : 1;
3450 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3452 ffio_wfourcc(pb, "mvhd");
3453 avio_w8(pb, version);
3454 avio_wb24(pb, 0); /* flags */
3456 avio_wb64(pb, mov->time);
3457 avio_wb64(pb, mov->time);
3459 avio_wb32(pb, mov->time); /* creation time */
3460 avio_wb32(pb, mov->time); /* modification time */
3462 avio_wb32(pb, MOV_TIMESCALE);
3463 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3465 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3466 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3467 avio_wb16(pb, 0); /* reserved */
3468 avio_wb32(pb, 0); /* reserved */
3469 avio_wb32(pb, 0); /* reserved */
3471 /* Matrix structure */
3472 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3474 avio_wb32(pb, 0); /* reserved (preview time) */
3475 avio_wb32(pb, 0); /* reserved (preview duration) */
3476 avio_wb32(pb, 0); /* reserved (poster time) */
3477 avio_wb32(pb, 0); /* reserved (selection time) */
3478 avio_wb32(pb, 0); /* reserved (selection duration) */
3479 avio_wb32(pb, 0); /* reserved (current time) */
3480 avio_wb32(pb, max_track_id + 1); /* Next track id */
3484 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3487 avio_wb32(pb, 33); /* size */
3488 ffio_wfourcc(pb, "hdlr");
3491 ffio_wfourcc(pb, "mdir");
3492 ffio_wfourcc(pb, "appl");
3499 /* helper function to write a data tag with the specified string as data */
3500 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3503 int size = 16 + strlen(data);
3504 avio_wb32(pb, size); /* size */
3505 ffio_wfourcc(pb, "data");
3508 avio_write(pb, data, strlen(data));
3512 lang = ff_mov_iso639_to_lang("und", 1);
3513 avio_wb16(pb, strlen(data)); /* string length */
3514 avio_wb16(pb, lang);
3515 avio_write(pb, data, strlen(data));
3516 return strlen(data) + 4;
3520 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3521 const char *value, int lang, int long_style)
3524 if (value && value[0]) {
3525 int64_t pos = avio_tell(pb);
3526 avio_wb32(pb, 0); /* size */
3527 ffio_wfourcc(pb, name);
3528 mov_write_string_data_tag(pb, value, lang, long_style);
3529 size = update_size(pb, pos);
3534 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3535 const char *tag, int *lang)
3538 AVDictionaryEntry *t, *t2 = NULL;
3543 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3546 len = strlen(t->key);
3547 snprintf(tag2, sizeof(tag2), "%s-", tag);
3548 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3549 len2 = strlen(t2->key);
3550 if (len2 == len + 4 && !strcmp(t->value, t2->value)
3551 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3559 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3560 const char *name, const char *tag,
3564 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3567 return mov_write_string_tag(pb, name, t->value, lang, long_style);
3570 /* iTunes bpm number */
3571 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3573 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3574 int size = 0, tmpo = t ? atoi(t->value) : 0;
3577 avio_wb32(pb, size);
3578 ffio_wfourcc(pb, "tmpo");
3579 avio_wb32(pb, size-8); /* size */
3580 ffio_wfourcc(pb, "data");
3581 avio_wb32(pb, 0x15); //type specifier
3583 avio_wb16(pb, tmpo); // data
3588 /* 3GPP TS 26.244 */
3589 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3592 int64_t pos = avio_tell(pb);
3593 double latitude, longitude, altitude;
3594 int32_t latitude_fix, longitude_fix, altitude_fix;
3595 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3596 const char *ptr, *place = "";
3598 static const char *astronomical_body = "earth";
3603 longitude = strtod(ptr, &end);
3605 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3609 latitude = strtod(ptr, &end);
3611 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3615 altitude = strtod(ptr, &end);
3616 /* If no altitude was present, the default 0 should be fine */
3620 latitude_fix = (int32_t) ((1 << 16) * latitude);
3621 longitude_fix = (int32_t) ((1 << 16) * longitude);
3622 altitude_fix = (int32_t) ((1 << 16) * altitude);
3624 avio_wb32(pb, 0); /* size */
3625 ffio_wfourcc(pb, "loci"); /* type */
3626 avio_wb32(pb, 0); /* version + flags */
3627 avio_wb16(pb, lang);
3628 avio_write(pb, place, strlen(place) + 1);
3629 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3630 avio_wb32(pb, latitude_fix);
3631 avio_wb32(pb, longitude_fix);
3632 avio_wb32(pb, altitude_fix);
3633 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3634 avio_w8(pb, 0); /* additional notes, null terminated string */
3636 return update_size(pb, pos);
3639 /* iTunes track or disc number */
3640 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3641 AVFormatContext *s, int disc)
3643 AVDictionaryEntry *t = av_dict_get(s->metadata,
3644 disc ? "disc" : "track",
3646 int size = 0, track = t ? atoi(t->value) : 0;
3649 char *slash = strchr(t->value, '/');
3651 tracks = atoi(slash + 1);
3652 avio_wb32(pb, 32); /* size */
3653 ffio_wfourcc(pb, disc ? "disk" : "trkn");
3654 avio_wb32(pb, 24); /* size */
3655 ffio_wfourcc(pb, "data");
3656 avio_wb32(pb, 0); // 8 bytes empty
3658 avio_wb16(pb, 0); // empty
3659 avio_wb16(pb, track); // track / disc number
3660 avio_wb16(pb, tracks); // total track / disc number
3661 avio_wb16(pb, 0); // empty
3667 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3668 const char *name, const char *tag,
3671 AVDictionaryEntry *t = NULL;
3673 int size = 24 + len;
3675 if (len != 1 && len != 4)
3678 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3680 num = atoi(t->value);
3682 avio_wb32(pb, size);
3683 ffio_wfourcc(pb, name);
3684 avio_wb32(pb, size - 8);
3685 ffio_wfourcc(pb, "data");
3686 avio_wb32(pb, 0x15);
3688 if (len==4) avio_wb32(pb, num);
3689 else avio_w8 (pb, num);
3694 static int mov_write_covr(AVIOContext *pb, AVFormatContext *s)
3696 MOVMuxContext *mov = s->priv_data;
3700 for (i = 0; i < s->nb_streams; i++) {
3701 MOVTrack *trk = &mov->tracks[i];
3703 if (!is_cover_image(trk->st) || trk->cover_image->size <= 0)
3707 pos = avio_tell(pb);
3709 ffio_wfourcc(pb, "covr");
3711 avio_wb32(pb, 16 + trk->cover_image->size);
3712 ffio_wfourcc(pb, "data");
3713 avio_wb32(pb, trk->tag);
3715 avio_write(pb, trk->cover_image->data, trk->cover_image->size);
3718 return pos ? update_size(pb, pos) : 0;
3721 /* iTunes meta data list */
3722 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3725 int64_t pos = avio_tell(pb);
3726 avio_wb32(pb, 0); /* size */
3727 ffio_wfourcc(pb, "ilst");
3728 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3729 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3730 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3731 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3732 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3733 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3734 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3735 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3736 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3738 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3739 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3740 mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3741 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3742 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3743 mov_write_string_metadata(s, pb, "desc", "description",1);
3744 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3745 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3746 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3747 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3748 mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3749 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3750 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3751 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3752 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3753 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3754 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3755 mov_write_covr(pb, s);
3756 mov_write_trkn_tag(pb, mov, s, 0); // track number
3757 mov_write_trkn_tag(pb, mov, s, 1); // disc number
3758 mov_write_tmpo_tag(pb, s);
3759 return update_size(pb, pos);
3762 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3765 avio_wb32(pb, 33); /* size */
3766 ffio_wfourcc(pb, "hdlr");
3769 ffio_wfourcc(pb, "mdta");
3777 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3780 AVDictionaryEntry *t = NULL;
3781 int64_t pos = avio_tell(pb);
3782 int64_t curpos, entry_pos;
3785 avio_wb32(pb, 0); /* size */
3786 ffio_wfourcc(pb, "keys");
3788 entry_pos = avio_tell(pb);
3789 avio_wb32(pb, 0); /* entry count */
3791 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3792 avio_wb32(pb, strlen(t->key) + 8);
3793 ffio_wfourcc(pb, "mdta");
3794 avio_write(pb, t->key, strlen(t->key));
3797 curpos = avio_tell(pb);
3798 avio_seek(pb, entry_pos, SEEK_SET);
3799 avio_wb32(pb, count); // rewrite entry count
3800 avio_seek(pb, curpos, SEEK_SET);
3802 return update_size(pb, pos);
3805 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3808 AVDictionaryEntry *t = NULL;
3809 int64_t pos = avio_tell(pb);
3810 int count = 1; /* keys are 1-index based */
3812 avio_wb32(pb, 0); /* size */
3813 ffio_wfourcc(pb, "ilst");
3815 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3816 int64_t entry_pos = avio_tell(pb);
3817 avio_wb32(pb, 0); /* size */
3818 avio_wb32(pb, count); /* key */
3819 mov_write_string_data_tag(pb, t->value, 0, 1);
3820 update_size(pb, entry_pos);
3823 return update_size(pb, pos);
3826 /* meta data tags */
3827 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3831 int64_t pos = avio_tell(pb);
3832 avio_wb32(pb, 0); /* size */
3833 ffio_wfourcc(pb, "meta");
3835 if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3836 mov_write_mdta_hdlr_tag(pb, mov, s);
3837 mov_write_mdta_keys_tag(pb, mov, s);
3838 mov_write_mdta_ilst_tag(pb, mov, s);
3841 /* iTunes metadata tag */
3842 mov_write_itunes_hdlr_tag(pb, mov, s);
3843 mov_write_ilst_tag(pb, mov, s);
3845 size = update_size(pb, pos);
3849 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3850 const char *name, const char *key)
3853 AVDictionaryEntry *t;
3855 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3858 len = strlen(t->value);
3861 avio_wb32(pb, size);
3862 ffio_wfourcc(pb, name);
3863 avio_write(pb, t->value, len);
3869 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3873 GET_UTF8(val, *b++, return -1;)
3876 avio_wb16(pb, 0x00);
3880 static uint16_t language_code(const char *str)
3882 return (((str[0] - 0x60) & 0x1F) << 10) +
3883 (((str[1] - 0x60) & 0x1F) << 5) +
3884 (( str[2] - 0x60) & 0x1F);
3887 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3888 const char *tag, const char *str)
3890 int64_t pos = avio_tell(pb);
3891 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3892 if (!t || !utf8len(t->value))
3894 avio_wb32(pb, 0); /* size */
3895 ffio_wfourcc(pb, tag); /* type */
3896 avio_wb32(pb, 0); /* version + flags */
3897 if (!strcmp(tag, "yrrc"))
3898 avio_wb16(pb, atoi(t->value));
3900 avio_wb16(pb, language_code("eng")); /* language */
3901 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3902 if (!strcmp(tag, "albm") &&
3903 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3904 avio_w8(pb, atoi(t->value));
3906 return update_size(pb, pos);
3909 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3911 int64_t pos = avio_tell(pb);
3912 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3914 avio_wb32(pb, 0); // size
3915 ffio_wfourcc(pb, "chpl");
3916 avio_wb32(pb, 0x01000000); // version + flags
3917 avio_wb32(pb, 0); // unknown
3918 avio_w8(pb, nb_chapters);
3920 for (i = 0; i < nb_chapters; i++) {
3921 AVChapter *c = s->chapters[i];
3922 AVDictionaryEntry *t;
3923 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3925 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3926 int len = FFMIN(strlen(t->value), 255);
3928 avio_write(pb, t->value, len);
3932 return update_size(pb, pos);
3935 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3938 AVIOContext *pb_buf;
3942 ret = avio_open_dyn_buf(&pb_buf);
3946 if (mov->mode & MODE_3GP) {
3947 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3948 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3949 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3950 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3951 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3952 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3953 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3954 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3955 mov_write_loci_tag(s, pb_buf);
3956 } else if (mov->mode == MODE_MOV && !(mov->flags & FF_MOV_FLAG_USE_MDTA)) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
3957 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3958 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3959 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3960 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3961 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3962 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3963 // currently ignored by mov.c
3964 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3965 // add support for libquicktime, this atom is also actually read by mov.c
3966 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3967 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3968 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3969 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3970 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3971 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3972 mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3973 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3975 /* iTunes meta data */
3976 mov_write_meta_tag(pb_buf, mov, s);
3977 mov_write_loci_tag(s, pb_buf);
3980 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3981 mov_write_chpl_tag(pb_buf, s);
3983 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3984 avio_wb32(pb, size + 8);
3985 ffio_wfourcc(pb, "udta");
3986 avio_write(pb, buf, size);
3988 ffio_free_dyn_buf(&pb_buf);
3993 static void mov_write_psp_udta_tag(AVIOContext *pb,
3994 const char *str, const char *lang, int type)
3996 int len = utf8len(str) + 1;
3999 avio_wb16(pb, len * 2 + 10); /* size */
4000 avio_wb32(pb, type); /* type */
4001 avio_wb16(pb, language_code(lang)); /* language */
4002 avio_wb16(pb, 0x01); /* ? */
4003 ascii_to_wc(pb, str);
4006 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
4008 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
4012 pos = avio_tell(pb);
4013 avio_wb32(pb, 0); /* size placeholder*/
4014 ffio_wfourcc(pb, "uuid");
4015 ffio_wfourcc(pb, "USMT");
4016 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4017 avio_wb32(pb, 0xbb88695c);
4018 avio_wb32(pb, 0xfac9c740);
4020 pos2 = avio_tell(pb);
4021 avio_wb32(pb, 0); /* size placeholder*/
4022 ffio_wfourcc(pb, "MTDT");
4026 avio_wb16(pb, 0x0C); /* size */
4027 avio_wb32(pb, 0x0B); /* type */
4028 avio_wb16(pb, language_code("und")); /* language */
4029 avio_wb16(pb, 0x0); /* ? */
4030 avio_wb16(pb, 0x021C); /* data */
4032 if (!(s->flags & AVFMT_FLAG_BITEXACT))
4033 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
4034 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
4035 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
4037 update_size(pb, pos2);
4038 return update_size(pb, pos);
4044 static void build_chunks(MOVTrack *trk)
4047 MOVIentry *chunk = &trk->cluster[0];
4048 uint64_t chunkSize = chunk->size;
4049 chunk->chunkNum = 1;
4050 if (trk->chunkCount)
4052 trk->chunkCount = 1;
4053 for (i = 1; i<trk->entry; i++){
4054 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
4055 chunkSize + trk->cluster[i].size < (1<<20)){
4056 chunkSize += trk->cluster[i].size;
4057 chunk->samples_in_chunk += trk->cluster[i].entries;
4059 trk->cluster[i].chunkNum = chunk->chunkNum+1;
4060 chunk=&trk->cluster[i];
4061 chunkSize = chunk->size;
4068 * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
4069 * the stream ids are used as track ids.
4071 * This assumes mov->tracks and s->streams are in the same order and
4072 * there are no gaps in either of them (so mov->tracks[n] refers to
4075 * As an exception, there can be more entries in
4076 * s->streams than in mov->tracks, in which case new track ids are
4077 * generated (starting after the largest found stream id).
4079 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
4083 if (mov->track_ids_ok)
4086 if (mov->use_stream_ids_as_track_ids) {
4087 int next_generated_track_id = 0;
4088 for (i = 0; i < s->nb_streams; i++) {
4089 if (s->streams[i]->id > next_generated_track_id)
4090 next_generated_track_id = s->streams[i]->id;
4093 for (i = 0; i < mov->nb_streams; i++) {
4094 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4097 mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
4100 for (i = 0; i < mov->nb_streams; i++) {
4101 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4104 mov->tracks[i].track_id = i + 1;
4108 mov->track_ids_ok = 1;
4113 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
4117 int64_t pos = avio_tell(pb);
4118 avio_wb32(pb, 0); /* size placeholder*/
4119 ffio_wfourcc(pb, "moov");
4121 mov_setup_track_ids(mov, s);
4123 for (i = 0; i < mov->nb_streams; i++) {
4124 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4127 mov->tracks[i].time = mov->time;
4129 if (mov->tracks[i].entry)
4130 build_chunks(&mov->tracks[i]);
4133 if (mov->chapter_track)
4134 for (i = 0; i < s->nb_streams; i++) {
4135 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
4136 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
4138 for (i = 0; i < mov->nb_streams; i++) {
4139 MOVTrack *track = &mov->tracks[i];
4140 if (track->tag == MKTAG('r','t','p',' ')) {
4141 track->tref_tag = MKTAG('h','i','n','t');
4142 track->tref_id = mov->tracks[track->src_track].track_id;
4143 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4146 fallback = (int*)av_stream_get_side_data(track->st,
4147 AV_PKT_DATA_FALLBACK_TRACK,
4149 if (fallback != NULL && size == sizeof(int)) {
4150 if (*fallback >= 0 && *fallback < mov->nb_streams) {
4151 track->tref_tag = MKTAG('f','a','l','l');
4152 track->tref_id = mov->tracks[*fallback].track_id;
4157 for (i = 0; i < mov->nb_streams; i++) {
4158 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
4159 int src_trk = mov->tracks[i].src_track;
4160 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
4161 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
4162 //src_trk may have a different timescale than the tmcd track
4163 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
4164 mov->tracks[i].timescale,
4165 mov->tracks[src_trk].timescale);
4169 mov_write_mvhd_tag(pb, mov);
4170 if (mov->mode != MODE_MOV && !mov->iods_skip)
4171 mov_write_iods_tag(pb, mov);
4172 for (i = 0; i < mov->nb_streams; i++) {
4173 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
4174 int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
4179 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4180 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
4182 if (mov->mode == MODE_PSP)
4183 mov_write_uuidusmt_tag(pb, s);
4185 mov_write_udta_tag(pb, mov, s);
4187 return update_size(pb, pos);
4190 static void param_write_int(AVIOContext *pb, const char *name, int value)
4192 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
4195 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
4197 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4200 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4203 len = FFMIN(sizeof(buf) / 2 - 1, len);
4204 ff_data_to_hex(buf, value, len, 0);
4205 buf[2 * len] = '\0';
4206 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4209 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
4211 int64_t pos = avio_tell(pb);
4214 static const uint8_t uuid[] = {
4215 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4216 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4220 ffio_wfourcc(pb, "uuid");
4221 avio_write(pb, uuid, sizeof(uuid));
4224 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4225 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4226 avio_printf(pb, "<head>\n");
4227 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4228 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4230 avio_printf(pb, "</head>\n");
4231 avio_printf(pb, "<body>\n");
4232 avio_printf(pb, "<switch>\n");
4234 mov_setup_track_ids(mov, s);
4236 for (i = 0; i < mov->nb_streams; i++) {
4237 MOVTrack *track = &mov->tracks[i];
4238 struct mpeg4_bit_rate_values bit_rates =
4239 calculate_mpeg4_bit_rates(track);
4241 int track_id = track->track_id;
4242 char track_name_buf[32] = { 0 };
4244 AVStream *st = track->st;
4245 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4247 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) {
4249 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4255 avio_printf(pb, "<%s systemBitrate=\"%"PRIu32"\">\n", type,
4256 bit_rates.avg_bit_rate);
4257 param_write_int(pb, "systemBitrate", bit_rates.avg_bit_rate);
4258 param_write_int(pb, "trackID", track_id);
4259 param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
4261 /* Build track name piece by piece: */
4263 av_strlcat(track_name_buf, type, sizeof(track_name_buf));
4264 /* 2. track language, if available */
4266 av_strlcatf(track_name_buf, sizeof(track_name_buf),
4267 "_%s", lang->value);
4268 /* 3. special type suffix */
4269 /* "_cc" = closed captions, "_ad" = audio_description */
4270 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
4271 av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
4272 else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
4273 av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
4275 param_write_string(pb, "trackName", track_name_buf);
4277 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4278 if (track->par->codec_id == AV_CODEC_ID_H264) {
4280 int size = track->par->extradata_size;
4281 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
4283 param_write_hex(pb, "CodecPrivateData",
4284 ptr ? ptr : track->par->extradata,
4288 param_write_string(pb, "FourCC", "H264");
4289 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
4290 param_write_string(pb, "FourCC", "WVC1");
4291 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4292 track->par->extradata_size);
4294 param_write_int(pb, "MaxWidth", track->par->width);
4295 param_write_int(pb, "MaxHeight", track->par->height);
4296 param_write_int(pb, "DisplayWidth", track->par->width);
4297 param_write_int(pb, "DisplayHeight", track->par->height);
4299 if (track->par->codec_id == AV_CODEC_ID_AAC) {
4300 switch (track->par->profile)
4302 case FF_PROFILE_AAC_HE_V2:
4303 param_write_string(pb, "FourCC", "AACP");
4305 case FF_PROFILE_AAC_HE:
4306 param_write_string(pb, "FourCC", "AACH");
4309 param_write_string(pb, "FourCC", "AACL");
4311 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
4312 param_write_string(pb, "FourCC", "WMAP");
4314 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4315 track->par->extradata_size);
4316 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
4317 track->par->codec_id));
4318 param_write_int(pb, "Channels", track->par->channels);
4319 param_write_int(pb, "SamplingRate", track->par->sample_rate);
4320 param_write_int(pb, "BitsPerSample", 16);
4321 param_write_int(pb, "PacketSize", track->par->block_align ?
4322 track->par->block_align : 4);
4324 avio_printf(pb, "</%s>\n", type);
4326 avio_printf(pb, "</switch>\n");
4327 avio_printf(pb, "</body>\n");
4328 avio_printf(pb, "</smil>\n");
4330 return update_size(pb, pos);
4333 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
4336 ffio_wfourcc(pb, "mfhd");
4338 avio_wb32(pb, mov->fragments);
4342 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
4344 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
4345 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
4348 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
4349 MOVTrack *track, int64_t moof_offset)
4351 int64_t pos = avio_tell(pb);
4352 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4353 MOV_TFHD_BASE_DATA_OFFSET;
4354 if (!track->entry) {
4355 flags |= MOV_TFHD_DURATION_IS_EMPTY;
4357 flags |= MOV_TFHD_DEFAULT_FLAGS;
4359 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
4360 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4361 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
4362 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4363 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
4365 /* CMAF requires all values to be explicit in tfhd atoms */
4366 if (mov->flags & FF_MOV_FLAG_CMAF)
4367 flags |= MOV_TFHD_STSD_ID;
4369 /* Don't set a default sample size, the silverlight player refuses
4370 * to play files with that set. Don't set a default sample duration,
4371 * WMP freaks out if it is set. Don't set a base data offset, PIFF
4372 * file format says it MUST NOT be set. */
4373 if (track->mode == MODE_ISM)
4374 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4375 MOV_TFHD_BASE_DATA_OFFSET | MOV_TFHD_STSD_ID);
4377 avio_wb32(pb, 0); /* size placeholder */
4378 ffio_wfourcc(pb, "tfhd");
4379 avio_w8(pb, 0); /* version */
4380 avio_wb24(pb, flags);
4382 avio_wb32(pb, track->track_id); /* track-id */
4383 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
4384 avio_wb64(pb, moof_offset);
4385 if (flags & MOV_TFHD_STSD_ID) {
4388 if (flags & MOV_TFHD_DEFAULT_DURATION) {
4389 track->default_duration = get_cluster_duration(track, 0);
4390 avio_wb32(pb, track->default_duration);
4392 if (flags & MOV_TFHD_DEFAULT_SIZE) {
4393 track->default_size = track->entry ? track->cluster[0].size : 1;
4394 avio_wb32(pb, track->default_size);
4396 track->default_size = -1;
4398 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
4399 /* Set the default flags based on the second sample, if available.
4400 * If the first sample is different, that can be signaled via a separate field. */
4401 if (track->entry > 1)
4402 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
4404 track->default_sample_flags =
4405 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
4406 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
4407 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
4408 avio_wb32(pb, track->default_sample_flags);
4411 return update_size(pb, pos);
4414 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
4415 MOVTrack *track, int moof_size,
4418 int64_t pos = avio_tell(pb);
4419 uint32_t flags = MOV_TRUN_DATA_OFFSET;
4422 for (i = first; i < end; i++) {
4423 if (get_cluster_duration(track, i) != track->default_duration)
4424 flags |= MOV_TRUN_SAMPLE_DURATION;
4425 if (track->cluster[i].size != track->default_size)
4426 flags |= MOV_TRUN_SAMPLE_SIZE;
4427 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
4428 flags |= MOV_TRUN_SAMPLE_FLAGS;
4430 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
4431 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
4432 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
4433 if (track->flags & MOV_TRACK_CTTS)
4434 flags |= MOV_TRUN_SAMPLE_CTS;
4436 avio_wb32(pb, 0); /* size placeholder */
4437 ffio_wfourcc(pb, "trun");
4438 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4439 avio_w8(pb, 1); /* version */
4441 avio_w8(pb, 0); /* version */
4442 avio_wb24(pb, flags);
4444 avio_wb32(pb, end - first); /* sample count */
4445 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4446 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
4448 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
4450 avio_wb32(pb, moof_size + 8 + track->data_offset +
4451 track->cluster[first].pos); /* data offset */
4452 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
4453 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
4455 for (i = first; i < end; i++) {
4456 if (flags & MOV_TRUN_SAMPLE_DURATION)
4457 avio_wb32(pb, get_cluster_duration(track, i));
4458 if (flags & MOV_TRUN_SAMPLE_SIZE)
4459 avio_wb32(pb, track->cluster[i].size);
4460 if (flags & MOV_TRUN_SAMPLE_FLAGS)
4461 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
4462 if (flags & MOV_TRUN_SAMPLE_CTS)
4463 avio_wb32(pb, track->cluster[i].cts);
4466 mov->first_trun = 0;
4467 return update_size(pb, pos);
4470 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
4472 int64_t pos = avio_tell(pb);
4473 static const uint8_t uuid[] = {
4474 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
4475 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
4478 avio_wb32(pb, 0); /* size placeholder */
4479 ffio_wfourcc(pb, "uuid");
4480 avio_write(pb, uuid, sizeof(uuid));
4483 avio_wb64(pb, track->start_dts + track->frag_start +
4484 track->cluster[0].cts);
4485 avio_wb64(pb, track->end_pts -
4486 (track->cluster[0].dts + track->cluster[0].cts));
4488 return update_size(pb, pos);
4491 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
4492 MOVTrack *track, int entry)
4494 int n = track->nb_frag_info - 1 - entry, i;
4495 int size = 8 + 16 + 4 + 1 + 16*n;
4496 static const uint8_t uuid[] = {
4497 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
4498 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
4504 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
4505 avio_wb32(pb, size);
4506 ffio_wfourcc(pb, "uuid");
4507 avio_write(pb, uuid, sizeof(uuid));
4511 for (i = 0; i < n; i++) {
4512 int index = entry + 1 + i;
4513 avio_wb64(pb, track->frag_info[index].time);
4514 avio_wb64(pb, track->frag_info[index].duration);
4516 if (n < mov->ism_lookahead) {
4517 int free_size = 16 * (mov->ism_lookahead - n);
4518 avio_wb32(pb, free_size);
4519 ffio_wfourcc(pb, "free");
4520 ffio_fill(pb, 0, free_size - 8);
4526 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
4529 int64_t pos = avio_tell(pb);
4531 for (i = 0; i < mov->ism_lookahead; i++) {
4532 /* Update the tfrf tag for the last ism_lookahead fragments,
4533 * nb_frag_info - 1 is the next fragment to be written. */
4534 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
4536 avio_seek(pb, pos, SEEK_SET);
4540 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4544 for (i = 0; i < mov->nb_streams; i++) {
4545 MOVTrack *track = &mov->tracks[i];
4546 MOVFragmentInfo *info;
4547 if ((tracks >= 0 && i != tracks) || !track->entry)
4549 track->nb_frag_info++;
4550 if (track->nb_frag_info >= track->frag_info_capacity) {
4551 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
4552 if (av_reallocp_array(&track->frag_info,
4554 sizeof(*track->frag_info)))
4555 return AVERROR(ENOMEM);
4556 track->frag_info_capacity = new_capacity;
4558 info = &track->frag_info[track->nb_frag_info - 1];
4559 info->offset = avio_tell(pb);
4561 // Try to recreate the original pts for the first packet
4562 // from the fields we have stored
4563 info->time = track->start_dts + track->frag_start +
4564 track->cluster[0].cts;
4565 info->duration = track->end_pts -
4566 (track->cluster[0].dts + track->cluster[0].cts);
4567 // If the pts is less than zero, we will have trimmed
4568 // away parts of the media track using an edit list,
4569 // and the corresponding start presentation time is zero.
4570 if (info->time < 0) {
4571 info->duration += info->time;
4574 info->tfrf_offset = 0;
4575 mov_write_tfrf_tags(pb, mov, track);
4580 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
4583 for (i = 0; i < mov->nb_streams; i++) {
4584 MOVTrack *track = &mov->tracks[i];
4585 if ((tracks >= 0 && i != tracks) || !track->entry)
4587 if (track->nb_frag_info > max) {
4588 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
4589 track->nb_frag_info = max;
4594 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
4596 int64_t pos = avio_tell(pb);
4598 avio_wb32(pb, 0); /* size */
4599 ffio_wfourcc(pb, "tfdt");
4600 avio_w8(pb, 1); /* version */
4602 avio_wb64(pb, track->frag_start);
4603 return update_size(pb, pos);
4606 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
4607 MOVTrack *track, int64_t moof_offset,
4610 int64_t pos = avio_tell(pb);
4612 avio_wb32(pb, 0); /* size placeholder */
4613 ffio_wfourcc(pb, "traf");
4615 mov_write_tfhd_tag(pb, mov, track, moof_offset);
4616 if (mov->mode != MODE_ISM)
4617 mov_write_tfdt_tag(pb, track);
4618 for (i = 1; i < track->entry; i++) {
4619 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
4620 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
4624 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
4625 if (mov->mode == MODE_ISM) {
4626 mov_write_tfxd_tag(pb, track);
4628 if (mov->ism_lookahead) {
4629 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
4631 if (track->nb_frag_info > 0) {
4632 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
4633 if (!info->tfrf_offset)
4634 info->tfrf_offset = avio_tell(pb);
4636 avio_wb32(pb, 8 + size);
4637 ffio_wfourcc(pb, "free");
4638 for (i = 0; i < size; i++)
4643 return update_size(pb, pos);
4646 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
4647 int tracks, int moof_size)
4649 int64_t pos = avio_tell(pb);
4652 avio_wb32(pb, 0); /* size placeholder */
4653 ffio_wfourcc(pb, "moof");
4654 mov->first_trun = 1;
4656 mov_write_mfhd_tag(pb, mov);
4657 for (i = 0; i < mov->nb_streams; i++) {
4658 MOVTrack *track = &mov->tracks[i];
4659 if (tracks >= 0 && i != tracks)
4663 mov_write_traf_tag(pb, mov, track, pos, moof_size);
4666 return update_size(pb, pos);
4669 static int mov_write_sidx_tag(AVIOContext *pb,
4670 MOVTrack *track, int ref_size, int total_sidx_size)
4672 int64_t pos = avio_tell(pb), offset_pos, end_pos;
4673 int64_t presentation_time, duration, offset;
4674 unsigned starts_with_SAP;
4679 presentation_time = track->start_dts + track->frag_start +
4680 track->cluster[0].cts;
4681 duration = track->end_pts -
4682 (track->cluster[0].dts + track->cluster[0].cts);
4683 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
4685 // pts<0 should be cut away using edts
4686 if (presentation_time < 0) {
4687 duration += presentation_time;
4688 presentation_time = 0;
4691 entries = track->nb_frag_info;
4694 presentation_time = track->frag_info[0].time;
4697 avio_wb32(pb, 0); /* size */
4698 ffio_wfourcc(pb, "sidx");
4699 avio_w8(pb, 1); /* version */
4701 avio_wb32(pb, track->track_id); /* reference_ID */
4702 avio_wb32(pb, track->timescale); /* timescale */
4703 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
4704 offset_pos = avio_tell(pb);
4705 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
4706 avio_wb16(pb, 0); /* reserved */
4708 avio_wb16(pb, entries); /* reference_count */
4709 for (i = 0; i < entries; i++) {
4710 if (!track->entry) {
4711 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
4712 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
4714 duration = track->frag_info[i].duration;
4715 ref_size = track->frag_info[i].size;
4716 starts_with_SAP = 1;
4718 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
4719 avio_wb32(pb, duration); /* subsegment_duration */
4720 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
4723 end_pos = avio_tell(pb);
4724 offset = pos + total_sidx_size - end_pos;
4725 avio_seek(pb, offset_pos, SEEK_SET);
4726 avio_wb64(pb, offset);
4727 avio_seek(pb, end_pos, SEEK_SET);
4728 return update_size(pb, pos);
4731 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
4732 int tracks, int ref_size)
4735 AVIOContext *avio_buf;
4737 for (round = 0; round < 2; round++) {
4738 // First run one round to calculate the total size of all
4740 // This would be much simpler if we'd only write one sidx
4741 // atom, for the first track in the moof.
4743 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4748 for (i = 0; i < mov->nb_streams; i++) {
4749 MOVTrack *track = &mov->tracks[i];
4750 if (tracks >= 0 && i != tracks)
4752 // When writing a sidx for the full file, entry is 0, but
4753 // we want to include all tracks. ref_size is 0 in this case,
4754 // since we read it from frag_info instead.
4755 if (!track->entry && ref_size > 0)
4757 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
4761 total_size = ffio_close_null_buf(avio_buf);
4766 static int mov_write_prft_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
4768 int64_t pos = avio_tell(pb), pts_us, ntp_ts;
4769 MOVTrack *first_track;
4772 /* PRFT should be associated with at most one track. So, choosing only the
4776 first_track = &(mov->tracks[0]);
4778 if (!first_track->entry) {
4779 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, no entries in the track\n");
4783 if (first_track->cluster[0].pts == AV_NOPTS_VALUE) {
4784 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, first PTS is invalid\n");
4788 if (mov->write_prft == MOV_PRFT_SRC_WALLCLOCK) {
4789 if (first_track->cluster[0].prft.wallclock) {
4790 /* Round the NTP time to whole milliseconds. */
4791 ntp_ts = ff_get_formatted_ntp_time((first_track->cluster[0].prft.wallclock / 1000) * 1000 +
4793 flags = first_track->cluster[0].prft.flags;
4795 ntp_ts = ff_get_formatted_ntp_time(ff_ntp_time());
4796 } else if (mov->write_prft == MOV_PRFT_SRC_PTS) {
4797 pts_us = av_rescale_q(first_track->cluster[0].pts,
4798 first_track->st->time_base, AV_TIME_BASE_Q);
4799 ntp_ts = ff_get_formatted_ntp_time(pts_us + NTP_OFFSET_US);
4801 av_log(mov->fc, AV_LOG_WARNING, "Unsupported PRFT box configuration: %d\n",
4806 avio_wb32(pb, 0); // Size place holder
4807 ffio_wfourcc(pb, "prft"); // Type
4808 avio_w8(pb, 1); // Version
4809 avio_wb24(pb, flags); // Flags
4810 avio_wb32(pb, first_track->track_id); // reference track ID
4811 avio_wb64(pb, ntp_ts); // NTP time stamp
4812 avio_wb64(pb, first_track->cluster[0].pts); //media time
4813 return update_size(pb, pos);
4816 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4819 AVIOContext *avio_buf;
4822 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4824 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
4825 moof_size = ffio_close_null_buf(avio_buf);
4827 if (mov->flags & FF_MOV_FLAG_DASH &&
4828 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX)))
4829 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
4831 if (mov->write_prft > MOV_PRFT_NONE && mov->write_prft < MOV_PRFT_NB)
4832 mov_write_prft_tag(pb, mov, tracks);
4834 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
4835 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
4836 mov->ism_lookahead) {
4837 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
4839 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
4840 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
4841 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
4845 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
4848 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
4850 int64_t pos = avio_tell(pb);
4853 avio_wb32(pb, 0); /* size placeholder */
4854 ffio_wfourcc(pb, "tfra");
4855 avio_w8(pb, 1); /* version */
4858 avio_wb32(pb, track->track_id);
4859 avio_wb32(pb, 0); /* length of traf/trun/sample num */
4860 avio_wb32(pb, track->nb_frag_info);
4861 for (i = 0; i < track->nb_frag_info; i++) {
4862 avio_wb64(pb, track->frag_info[i].time);
4863 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
4864 avio_w8(pb, 1); /* traf number */
4865 avio_w8(pb, 1); /* trun number */
4866 avio_w8(pb, 1); /* sample number */
4869 return update_size(pb, pos);
4872 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
4874 AVIOContext *mfra_pb;
4878 ret = avio_open_dyn_buf(&mfra_pb);
4882 avio_wb32(mfra_pb, 0); /* size placeholder */
4883 ffio_wfourcc(mfra_pb, "mfra");
4884 /* An empty mfra atom is enough to indicate to the publishing point that
4885 * the stream has ended. */
4886 if (mov->flags & FF_MOV_FLAG_ISML)
4889 for (i = 0; i < mov->nb_streams; i++) {
4890 MOVTrack *track = &mov->tracks[i];
4891 if (track->nb_frag_info)
4892 mov_write_tfra_tag(mfra_pb, track);
4895 avio_wb32(mfra_pb, 16);
4896 ffio_wfourcc(mfra_pb, "mfro");
4897 avio_wb32(mfra_pb, 0); /* version + flags */
4898 avio_wb32(mfra_pb, avio_tell(mfra_pb) + 4);
4902 sz = update_size(mfra_pb, 0);
4903 ret = avio_get_dyn_buf(mfra_pb, &buf);
4904 avio_write(pb, buf, ret);
4905 ffio_free_dyn_buf(&mfra_pb);
4910 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
4912 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
4913 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
4915 mov->mdat_pos = avio_tell(pb);
4916 avio_wb32(pb, 0); /* size placeholder*/
4917 ffio_wfourcc(pb, "mdat");
4921 static void mov_write_ftyp_tag_internal(AVIOContext *pb, AVFormatContext *s,
4922 int has_h264, int has_video, int write_minor)
4924 MOVMuxContext *mov = s->priv_data;
4927 if (mov->major_brand && strlen(mov->major_brand) >= 4)
4928 ffio_wfourcc(pb, mov->major_brand);
4929 else if (mov->mode == MODE_3GP) {
4930 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
4931 minor = has_h264 ? 0x100 : 0x200;
4932 } else if (mov->mode & MODE_3G2) {
4933 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
4934 minor = has_h264 ? 0x20000 : 0x10000;
4935 } else if (mov->mode == MODE_PSP)
4936 ffio_wfourcc(pb, "MSNV");
4937 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_FRAGMENT &&
4938 mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4939 ffio_wfourcc(pb, "iso6"); // Required when using signed CTS offsets in trun boxes
4940 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4941 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
4942 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4943 ffio_wfourcc(pb, "iso4");
4944 else if (mov->mode == MODE_MP4)
4945 ffio_wfourcc(pb, "isom");
4946 else if (mov->mode == MODE_IPOD)
4947 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
4948 else if (mov->mode == MODE_ISM)
4949 ffio_wfourcc(pb, "isml");
4950 else if (mov->mode == MODE_F4V)
4951 ffio_wfourcc(pb, "f4v ");
4953 ffio_wfourcc(pb, "qt ");
4956 avio_wb32(pb, minor);
4959 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
4961 MOVMuxContext *mov = s->priv_data;
4962 int64_t pos = avio_tell(pb);
4963 int has_h264 = 0, has_av1 = 0, has_video = 0;
4966 for (i = 0; i < s->nb_streams; i++) {
4967 AVStream *st = s->streams[i];
4968 if (is_cover_image(st))
4970 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4972 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
4974 if (st->codecpar->codec_id == AV_CODEC_ID_AV1)
4978 avio_wb32(pb, 0); /* size */
4979 ffio_wfourcc(pb, "ftyp");
4981 // Write major brand
4982 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 1);
4983 // Write the major brand as the first compatible brand as well
4984 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 0);
4986 // Write compatible brands, ensuring that we don't write the major brand as a
4987 // compatible brand a second time.
4988 if (mov->mode == MODE_ISM) {
4989 ffio_wfourcc(pb, "piff");
4990 } else if (mov->mode != MODE_MOV) {
4991 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
4992 // brand, if not already the major brand. This is compatible with users that
4993 // don't understand tfdt.
4994 if (mov->mode == MODE_MP4) {
4995 if (mov->flags & FF_MOV_FLAG_CMAF)
4996 ffio_wfourcc(pb, "cmfc");
4997 if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
4998 ffio_wfourcc(pb, "iso6");
5000 ffio_wfourcc(pb, "av01");
5002 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5003 ffio_wfourcc(pb, "iso6");
5004 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5005 ffio_wfourcc(pb, "iso5");
5006 else if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
5007 ffio_wfourcc(pb, "iso4");
5009 // Brands prior to iso5 can't be signaled when using default-base-is-moof
5010 if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
5011 // write isom for mp4 only if it it's not the major brand already.
5012 if (mov->mode != MODE_MP4 || mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
5013 ffio_wfourcc(pb, "isom");
5014 ffio_wfourcc(pb, "iso2");
5016 ffio_wfourcc(pb, "avc1");
5020 if (mov->mode == MODE_MP4)
5021 ffio_wfourcc(pb, "mp41");
5023 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5024 ffio_wfourcc(pb, "dash");
5026 return update_size(pb, pos);
5029 static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
5031 AVStream *video_st = s->streams[0];
5032 AVCodecParameters *video_par = s->streams[0]->codecpar;
5033 AVCodecParameters *audio_par = s->streams[1]->codecpar;
5034 int audio_rate = audio_par->sample_rate;
5035 int64_t frame_rate = video_st->avg_frame_rate.den ?
5036 (video_st->avg_frame_rate.num * 0x10000LL) / video_st->avg_frame_rate.den :
5038 int audio_kbitrate = audio_par->bit_rate / 1000;
5039 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
5041 if (frame_rate < 0 || frame_rate > INT32_MAX) {
5042 av_log(s, AV_LOG_ERROR, "Frame rate %f outside supported range\n", frame_rate / (double)0x10000);
5043 return AVERROR(EINVAL);
5046 avio_wb32(pb, 0x94); /* size */
5047 ffio_wfourcc(pb, "uuid");
5048 ffio_wfourcc(pb, "PROF");
5050 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
5051 avio_wb32(pb, 0xbb88695c);
5052 avio_wb32(pb, 0xfac9c740);
5054 avio_wb32(pb, 0x0); /* ? */
5055 avio_wb32(pb, 0x3); /* 3 sections ? */
5057 avio_wb32(pb, 0x14); /* size */
5058 ffio_wfourcc(pb, "FPRF");
5059 avio_wb32(pb, 0x0); /* ? */
5060 avio_wb32(pb, 0x0); /* ? */
5061 avio_wb32(pb, 0x0); /* ? */
5063 avio_wb32(pb, 0x2c); /* size */
5064 ffio_wfourcc(pb, "APRF"); /* audio */
5066 avio_wb32(pb, 0x2); /* TrackID */
5067 ffio_wfourcc(pb, "mp4a");
5068 avio_wb32(pb, 0x20f);
5070 avio_wb32(pb, audio_kbitrate);
5071 avio_wb32(pb, audio_kbitrate);
5072 avio_wb32(pb, audio_rate);
5073 avio_wb32(pb, audio_par->channels);
5075 avio_wb32(pb, 0x34); /* size */
5076 ffio_wfourcc(pb, "VPRF"); /* video */
5078 avio_wb32(pb, 0x1); /* TrackID */
5079 if (video_par->codec_id == AV_CODEC_ID_H264) {
5080 ffio_wfourcc(pb, "avc1");
5081 avio_wb16(pb, 0x014D);
5082 avio_wb16(pb, 0x0015);
5084 ffio_wfourcc(pb, "mp4v");
5085 avio_wb16(pb, 0x0000);
5086 avio_wb16(pb, 0x0103);
5089 avio_wb32(pb, video_kbitrate);
5090 avio_wb32(pb, video_kbitrate);
5091 avio_wb32(pb, frame_rate);
5092 avio_wb32(pb, frame_rate);
5093 avio_wb16(pb, video_par->width);
5094 avio_wb16(pb, video_par->height);
5095 avio_wb32(pb, 0x010001); /* ? */
5100 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
5102 MOVMuxContext *mov = s->priv_data;
5105 mov_write_ftyp_tag(pb,s);
5106 if (mov->mode == MODE_PSP) {
5107 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
5108 for (i = 0; i < s->nb_streams; i++) {
5109 AVStream *st = s->streams[i];
5110 if (is_cover_image(st))
5112 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
5114 else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
5120 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
5121 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
5122 return AVERROR(EINVAL);
5124 return mov_write_uuidprof_tag(pb, s);
5129 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
5132 int i, closed_gop = 0;
5134 for (i = 0; i < pkt->size - 4; i++) {
5135 c = (c << 8) + pkt->data[i];
5136 if (c == 0x1b8) { // gop
5137 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
5138 } else if (c == 0x100) { // pic
5139 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
5140 if (!temp_ref || closed_gop) // I picture is not reordered
5141 *flags = MOV_SYNC_SAMPLE;
5143 *flags = MOV_PARTIAL_SYNC_SAMPLE;
5150 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
5152 const uint8_t *start, *next, *end = pkt->data + pkt->size;
5153 int seq = 0, entry = 0;
5154 int key = pkt->flags & AV_PKT_FLAG_KEY;
5155 start = find_next_marker(pkt->data, end);
5156 for (next = start; next < end; start = next) {
5157 next = find_next_marker(start + 4, end);
5158 switch (AV_RB32(start)) {
5159 case VC1_CODE_SEQHDR:
5162 case VC1_CODE_ENTRYPOINT:
5165 case VC1_CODE_SLICE:
5166 trk->vc1_info.slices = 1;
5170 if (!trk->entry && trk->vc1_info.first_packet_seen)
5171 trk->vc1_info.first_frag_written = 1;
5172 if (!trk->entry && !trk->vc1_info.first_frag_written) {
5173 /* First packet in first fragment */
5174 trk->vc1_info.first_packet_seq = seq;
5175 trk->vc1_info.first_packet_entry = entry;
5176 trk->vc1_info.first_packet_seen = 1;
5177 } else if ((seq && !trk->vc1_info.packet_seq) ||
5178 (entry && !trk->vc1_info.packet_entry)) {
5180 for (i = 0; i < trk->entry; i++)
5181 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
5182 trk->has_keyframes = 0;
5184 trk->vc1_info.packet_seq = 1;
5186 trk->vc1_info.packet_entry = 1;
5187 if (!trk->vc1_info.first_frag_written) {
5188 /* First fragment */
5189 if ((!seq || trk->vc1_info.first_packet_seq) &&
5190 (!entry || trk->vc1_info.first_packet_entry)) {
5191 /* First packet had the same headers as this one, readd the
5192 * sync sample flag. */
5193 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
5194 trk->has_keyframes = 1;
5198 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
5200 else if (trk->vc1_info.packet_seq)
5202 else if (trk->vc1_info.packet_entry)
5205 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5206 trk->has_keyframes++;
5210 static void mov_parse_truehd_frame(AVPacket *pkt, MOVTrack *trk)
5217 length = (AV_RB16(pkt->data) & 0xFFF) * 2;
5218 if (length < 8 || length > pkt->size)
5221 if (AV_RB32(pkt->data + 4) == 0xF8726FBA) {
5222 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5223 trk->has_keyframes++;
5229 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
5231 MOVMuxContext *mov = s->priv_data;
5236 if (!track->mdat_buf)
5238 if (!mov->mdat_buf) {
5239 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5242 buf_size = avio_get_dyn_buf(track->mdat_buf, &buf);
5244 offset = avio_tell(mov->mdat_buf);
5245 avio_write(mov->mdat_buf, buf, buf_size);
5246 ffio_free_dyn_buf(&track->mdat_buf);
5248 for (i = track->entries_flushed; i < track->entry; i++)
5249 track->cluster[i].pos += offset;
5250 track->entries_flushed = track->entry;
5254 static int mov_flush_fragment(AVFormatContext *s, int force)
5256 MOVMuxContext *mov = s->priv_data;
5257 int i, first_track = -1;
5258 int64_t mdat_size = 0;
5260 int has_video = 0, starts_with_key = 0, first_video_track = 1;
5262 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
5265 // Try to fill in the duration of the last packet in each stream
5266 // from queued packets in the interleave queues. If the flushing
5267 // of fragments was triggered automatically by an AVPacket, we
5268 // already have reliable info for the end of that track, but other
5269 // tracks may need to be filled in.
5270 for (i = 0; i < s->nb_streams; i++) {
5271 MOVTrack *track = &mov->tracks[i];
5272 if (!track->end_reliable) {
5273 const AVPacket *pkt = ff_interleaved_peek(s, i);
5275 int64_t offset, dts, pts;
5276 ff_get_muxer_ts_offset(s, i, &offset);
5277 pts = pkt->pts + offset;
5278 dts = pkt->dts + offset;
5279 if (track->dts_shift != AV_NOPTS_VALUE)
5280 dts += track->dts_shift;
5281 track->track_duration = dts - track->start_dts;
5282 if (pts != AV_NOPTS_VALUE)
5283 track->end_pts = pts;
5285 track->end_pts = dts;
5290 for (i = 0; i < mov->nb_streams; i++) {
5291 MOVTrack *track = &mov->tracks[i];
5292 if (track->entry <= 1)
5294 // Sample durations are calculated as the diff of dts values,
5295 // but for the last sample in a fragment, we don't know the dts
5296 // of the first sample in the next fragment, so we have to rely
5297 // on what was set as duration in the AVPacket. Not all callers
5298 // set this though, so we might want to replace it with an
5299 // estimate if it currently is zero.
5300 if (get_cluster_duration(track, track->entry - 1) != 0)
5302 // Use the duration (i.e. dts diff) of the second last sample for
5303 // the last one. This is a wild guess (and fatal if it turns out
5304 // to be too long), but probably the best we can do - having a zero
5305 // duration is bad as well.
5306 track->track_duration += get_cluster_duration(track, track->entry - 2);
5307 track->end_pts += get_cluster_duration(track, track->entry - 2);
5308 if (!mov->missing_duration_warned) {
5309 av_log(s, AV_LOG_WARNING,
5310 "Estimating the duration of the last packet in a "
5311 "fragment, consider setting the duration field in "
5312 "AVPacket instead.\n");
5313 mov->missing_duration_warned = 1;
5317 if (!mov->moov_written) {
5318 int64_t pos = avio_tell(s->pb);
5320 int buf_size, moov_size;
5322 for (i = 0; i < mov->nb_streams; i++)
5323 if (!mov->tracks[i].entry && !is_cover_image(mov->tracks[i].st))
5325 /* Don't write the initial moov unless all tracks have data */
5326 if (i < mov->nb_streams && !force)
5329 moov_size = get_moov_size(s);
5330 for (i = 0; i < mov->nb_streams; i++)
5331 mov->tracks[i].data_offset = pos + moov_size + 8;
5333 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
5334 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5335 mov_write_identification(s->pb, s);
5336 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
5339 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
5340 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5341 mov->reserved_header_pos = avio_tell(s->pb);
5342 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5343 mov->moov_written = 1;
5347 buf_size = avio_get_dyn_buf(mov->mdat_buf, &buf);
5348 avio_wb32(s->pb, buf_size + 8);
5349 ffio_wfourcc(s->pb, "mdat");
5350 avio_write(s->pb, buf, buf_size);
5351 ffio_free_dyn_buf(&mov->mdat_buf);
5353 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5354 mov->reserved_header_pos = avio_tell(s->pb);
5356 mov->moov_written = 1;
5358 for (i = 0; i < mov->nb_streams; i++) {
5359 if (mov->tracks[i].entry)
5360 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
5361 mov->tracks[i].track_duration -
5362 mov->tracks[i].cluster[0].dts;
5363 mov->tracks[i].entry = 0;
5364 mov->tracks[i].end_reliable = 0;
5366 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5370 if (mov->frag_interleave) {
5371 for (i = 0; i < mov->nb_streams; i++) {
5372 MOVTrack *track = &mov->tracks[i];
5374 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
5380 mdat_size = avio_tell(mov->mdat_buf);
5383 for (i = 0; i < mov->nb_streams; i++) {
5384 MOVTrack *track = &mov->tracks[i];
5385 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
5386 track->data_offset = 0;
5388 track->data_offset = mdat_size;
5389 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
5391 if (first_video_track) {
5393 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
5394 first_video_track = 0;
5399 if (track->mdat_buf)
5400 mdat_size += avio_tell(track->mdat_buf);
5401 if (first_track < 0)
5408 avio_write_marker(s->pb,
5409 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
5410 (has_video ? starts_with_key : mov->tracks[first_track].cluster[0].flags & MOV_SYNC_SAMPLE) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
5412 for (i = 0; i < mov->nb_streams; i++) {
5413 MOVTrack *track = &mov->tracks[i];
5414 int buf_size, write_moof = 1, moof_tracks = -1;
5416 int64_t duration = 0;
5419 duration = track->start_dts + track->track_duration -
5420 track->cluster[0].dts;
5421 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
5422 if (!track->mdat_buf)
5424 mdat_size = avio_tell(track->mdat_buf);
5427 write_moof = i == first_track;
5431 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5433 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
5436 avio_wb32(s->pb, mdat_size + 8);
5437 ffio_wfourcc(s->pb, "mdat");
5441 track->frag_start += duration;
5443 track->entries_flushed = 0;
5444 track->end_reliable = 0;
5445 if (!mov->frag_interleave) {
5446 if (!track->mdat_buf)
5448 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
5449 track->mdat_buf = NULL;
5453 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
5454 mov->mdat_buf = NULL;
5457 avio_write(s->pb, buf, buf_size);
5463 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5467 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
5469 MOVMuxContext *mov = s->priv_data;
5470 int had_moov = mov->moov_written;
5471 int ret = mov_flush_fragment(s, force);
5474 // If using delay_moov, the first flush only wrote the moov,
5475 // not the actual moof+mdat pair, thus flush once again.
5476 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5477 ret = mov_flush_fragment(s, force);
5481 static int check_pkt(AVFormatContext *s, AVPacket *pkt)
5483 MOVMuxContext *mov = s->priv_data;
5484 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5489 ref = trk->cluster[trk->entry - 1].dts;
5490 } else if ( trk->start_dts != AV_NOPTS_VALUE
5491 && !trk->frag_discont) {
5492 ref = trk->start_dts + trk->track_duration;
5494 ref = pkt->dts; // Skip tests for the first packet
5496 if (trk->dts_shift != AV_NOPTS_VALUE) {
5497 /* With negative CTS offsets we have set an offset to the DTS,
5498 * reverse this for the check. */
5499 ref -= trk->dts_shift;
5502 duration = pkt->dts - ref;
5503 if (pkt->dts < ref || duration >= INT_MAX) {
5504 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
5509 pkt->pts = AV_NOPTS_VALUE;
5512 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
5513 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
5514 return AVERROR(EINVAL);
5519 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5521 MOVMuxContext *mov = s->priv_data;
5522 AVIOContext *pb = s->pb;
5523 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5524 AVCodecParameters *par = trk->par;
5525 AVProducerReferenceTime *prft;
5526 unsigned int samples_in_chunk = 0;
5527 int size = pkt->size, ret = 0, offset = 0;
5529 uint8_t *reformatted_data = NULL;
5531 ret = check_pkt(s, pkt);
5535 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5537 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
5538 if (mov->frag_interleave && mov->fragments > 0) {
5539 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
5540 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
5545 if (!trk->mdat_buf) {
5546 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
5551 if (!mov->mdat_buf) {
5552 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5559 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
5560 /* We must find out how many AMR blocks there are in one packet */
5561 static const uint16_t packed_size[16] =
5562 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
5565 while (len < size && samples_in_chunk < 100) {
5566 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
5569 if (samples_in_chunk > 1) {
5570 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
5573 } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
5574 par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
5575 samples_in_chunk = trk->par->frame_size;
5576 } else if (trk->sample_size)
5577 samples_in_chunk = size / trk->sample_size;
5579 samples_in_chunk = 1;
5581 if (samples_in_chunk < 1) {
5582 av_log(s, AV_LOG_ERROR, "fatal error, input packet contains no samples\n");
5583 return AVERROR_PATCHWELCOME;
5586 /* copy extradata if it exists */
5587 if (trk->vos_len == 0 && par->extradata_size > 0 &&
5588 !TAG_IS_AVCI(trk->tag) &&
5589 (par->codec_id != AV_CODEC_ID_DNXHD)) {
5590 trk->vos_len = par->extradata_size;
5591 trk->vos_data = av_malloc(trk->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
5592 if (!trk->vos_data) {
5593 ret = AVERROR(ENOMEM);
5596 memcpy(trk->vos_data, par->extradata, trk->vos_len);
5597 memset(trk->vos_data + trk->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5600 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
5601 par->codec_id == AV_CODEC_ID_H264 ||
5602 par->codec_id == AV_CODEC_ID_HEVC ||
5603 par->codec_id == AV_CODEC_ID_TRUEHD ||
5604 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len &&
5605 !TAG_IS_AVCI(trk->tag)) {
5606 /* copy frame to create needed atoms */
5607 trk->vos_len = size;
5608 trk->vos_data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
5609 if (!trk->vos_data) {
5610 ret = AVERROR(ENOMEM);
5613 memcpy(trk->vos_data, pkt->data, size);
5614 memset(trk->vos_data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5617 if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
5618 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
5619 if (!s->streams[pkt->stream_index]->nb_frames) {
5620 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
5621 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
5622 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
5625 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
5627 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
5628 /* from x264 or from bytestream H.264 */
5629 /* NAL reformatting needed */
5630 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5631 ret = ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
5635 avio_write(pb, reformatted_data, size);
5637 if (trk->cenc.aes_ctr) {
5638 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
5644 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
5647 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
5648 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
5649 /* extradata is Annex B, assume the bitstream is too and convert it */
5650 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5651 ret = ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data,
5655 avio_write(pb, reformatted_data, size);
5657 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
5659 } else if (par->codec_id == AV_CODEC_ID_AV1) {
5660 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5661 ret = ff_av1_filter_obus_buf(pkt->data, &reformatted_data,
5665 avio_write(pb, reformatted_data, size);
5667 size = ff_av1_filter_obus(pb, pkt->data, pkt->size);
5669 #if CONFIG_AC3_PARSER
5670 } else if (par->codec_id == AV_CODEC_ID_EAC3) {
5671 size = handle_eac3(mov, pkt, trk);
5676 avio_write(pb, pkt->data, size);
5678 } else if (par->codec_id == AV_CODEC_ID_EIA_608) {
5681 for (int i = 0; i < pkt->size; i += 3) {
5682 if (pkt->data[i] == 0xFC) {
5686 avio_wb32(pb, size);
5687 ffio_wfourcc(pb, "cdat");
5688 for (int i = 0; i < pkt->size; i += 3) {
5689 if (pkt->data[i] == 0xFC) {
5690 avio_w8(pb, pkt->data[i + 1]);
5691 avio_w8(pb, pkt->data[i + 2]);
5695 if (trk->cenc.aes_ctr) {
5696 if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
5697 int nal_size_length = (par->extradata[4] & 0x3) + 1;
5698 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
5700 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
5707 avio_write(pb, pkt->data, size);
5711 if (trk->entry >= trk->cluster_capacity) {
5712 unsigned new_capacity = trk->entry + MOV_INDEX_CLUSTER_SIZE;
5713 void *cluster = av_realloc_array(trk->cluster, new_capacity, sizeof(*trk->cluster));
5715 ret = AVERROR(ENOMEM);
5718 trk->cluster = cluster;
5719 trk->cluster_capacity = new_capacity;
5722 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
5723 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
5724 trk->cluster[trk->entry].chunkNum = 0;
5725 trk->cluster[trk->entry].size = size;
5726 trk->cluster[trk->entry].entries = samples_in_chunk;
5727 trk->cluster[trk->entry].dts = pkt->dts;
5728 trk->cluster[trk->entry].pts = pkt->pts;
5729 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
5730 if (!trk->frag_discont) {
5731 /* First packet of a new fragment. We already wrote the duration
5732 * of the last packet of the previous fragment based on track_duration,
5733 * which might not exactly match our dts. Therefore adjust the dts
5734 * of this packet to be what the previous packets duration implies. */
5735 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
5736 /* We also may have written the pts and the corresponding duration
5737 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
5738 * the next fragment. This means the cts of the first sample must
5739 * be the same in all fragments, unless end_pts was updated by
5740 * the packet causing the fragment to be written. */
5741 if ((mov->flags & FF_MOV_FLAG_DASH &&
5742 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX))) ||
5743 mov->mode == MODE_ISM)
5744 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
5746 /* New fragment, but discontinuous from previous fragments.
5747 * Pretend the duration sum of the earlier fragments is
5748 * pkt->dts - trk->start_dts. */
5749 trk->frag_start = pkt->dts - trk->start_dts;
5750 trk->end_pts = AV_NOPTS_VALUE;
5751 trk->frag_discont = 0;
5755 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
5756 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
5757 /* Not using edit lists and shifting the first track to start from zero.
5758 * If the other streams start from a later timestamp, we won't be able
5759 * to signal the difference in starting time without an edit list.
5760 * Thus move the timestamp for this first sample to 0, increasing
5761 * its duration instead. */
5762 trk->cluster[trk->entry].dts = trk->start_dts = 0;
5764 if (trk->start_dts == AV_NOPTS_VALUE) {
5765 trk->start_dts = pkt->dts;
5766 if (trk->frag_discont) {
5767 if (mov->use_editlist) {
5768 /* Pretend the whole stream started at pts=0, with earlier fragments
5769 * already written. If the stream started at pts=0, the duration sum
5770 * of earlier fragments would have been pkt->pts. */
5771 trk->frag_start = pkt->pts;
5772 trk->start_dts = pkt->dts - pkt->pts;
5774 /* Pretend the whole stream started at dts=0, with earlier fragments
5775 * already written, with a duration summing up to pkt->dts. */
5776 trk->frag_start = pkt->dts;
5779 trk->frag_discont = 0;
5780 } else if (pkt->dts && mov->moov_written)
5781 av_log(s, AV_LOG_WARNING,
5782 "Track %d starts with a nonzero dts %"PRId64", while the moov "
5783 "already has been written. Set the delay_moov flag to handle "
5785 pkt->stream_index, pkt->dts);
5787 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
5788 trk->last_sample_is_subtitle_end = 0;
5790 if (pkt->pts == AV_NOPTS_VALUE) {
5791 av_log(s, AV_LOG_WARNING, "pts has no value\n");
5792 pkt->pts = pkt->dts;
5794 if (pkt->dts != pkt->pts)
5795 trk->flags |= MOV_TRACK_CTTS;
5796 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
5797 trk->cluster[trk->entry].flags = 0;
5798 if (trk->start_cts == AV_NOPTS_VALUE)
5799 trk->start_cts = pkt->pts - pkt->dts;
5800 if (trk->end_pts == AV_NOPTS_VALUE)
5801 trk->end_pts = trk->cluster[trk->entry].dts +
5802 trk->cluster[trk->entry].cts + pkt->duration;
5804 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
5805 trk->cluster[trk->entry].cts +
5808 if (par->codec_id == AV_CODEC_ID_VC1) {
5809 mov_parse_vc1_frame(pkt, trk);
5810 } else if (par->codec_id == AV_CODEC_ID_TRUEHD) {
5811 mov_parse_truehd_frame(pkt, trk);
5812 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
5813 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
5814 trk->entry > 0) { // force sync sample for the first key frame
5815 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
5816 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
5817 trk->flags |= MOV_TRACK_STPS;
5819 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
5821 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
5822 trk->has_keyframes++;
5824 if (pkt->flags & AV_PKT_FLAG_DISPOSABLE) {
5825 trk->cluster[trk->entry].flags |= MOV_DISPOSABLE_SAMPLE;
5826 trk->has_disposable++;
5829 prft = (AVProducerReferenceTime *)av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &prft_size);
5830 if (prft && prft_size == sizeof(AVProducerReferenceTime))
5831 memcpy(&trk->cluster[trk->entry].prft, prft, prft_size);
5833 memset(&trk->cluster[trk->entry].prft, 0, sizeof(AVProducerReferenceTime));
5836 trk->sample_count += samples_in_chunk;
5837 mov->mdat_size += size;
5839 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
5840 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
5841 reformatted_data ? reformatted_data + offset
5847 if (pkt->data != reformatted_data)
5848 av_free(reformatted_data);
5852 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
5854 MOVMuxContext *mov = s->priv_data;
5855 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5856 AVCodecParameters *par = trk->par;
5857 int64_t frag_duration = 0;
5858 int size = pkt->size;
5860 int ret = check_pkt(s, pkt);
5864 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
5866 for (i = 0; i < s->nb_streams; i++)
5867 mov->tracks[i].frag_discont = 1;
5868 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
5871 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) {
5872 if (trk->dts_shift == AV_NOPTS_VALUE)
5873 trk->dts_shift = pkt->pts - pkt->dts;
5874 pkt->dts += trk->dts_shift;
5877 if (trk->par->codec_id == AV_CODEC_ID_MP4ALS ||
5878 trk->par->codec_id == AV_CODEC_ID_AAC ||
5879 trk->par->codec_id == AV_CODEC_ID_AV1 ||
5880 trk->par->codec_id == AV_CODEC_ID_FLAC) {
5882 uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
5883 if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) {
5884 void *newextra = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE);
5886 return AVERROR(ENOMEM);
5887 av_free(par->extradata);
5888 par->extradata = newextra;
5889 memcpy(par->extradata, side, side_size);
5890 par->extradata_size = side_size;
5891 if (!pkt->size) // Flush packet
5892 mov->need_rewrite_extradata = 1;
5897 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
5898 trk->start_dts = pkt->dts;
5899 if (pkt->pts != AV_NOPTS_VALUE)
5900 trk->start_cts = pkt->pts - pkt->dts;
5905 return 0; /* Discard 0 sized packets */
5908 if (trk->entry && pkt->stream_index < s->nb_streams)
5909 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
5910 s->streams[pkt->stream_index]->time_base,
5912 if ((mov->max_fragment_duration &&
5913 frag_duration >= mov->max_fragment_duration) ||
5914 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
5915 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
5916 par->codec_type == AVMEDIA_TYPE_VIDEO &&
5917 trk->entry && pkt->flags & AV_PKT_FLAG_KEY) ||
5918 (mov->flags & FF_MOV_FLAG_FRAG_EVERY_FRAME)) {
5919 if (frag_duration >= mov->min_fragment_duration) {
5920 // Set the duration of this track to line up with the next
5921 // sample in this track. This avoids relying on AVPacket
5922 // duration, but only helps for this particular track, not
5923 // for the other ones that are flushed at the same time.
5924 trk->track_duration = pkt->dts - trk->start_dts;
5925 if (pkt->pts != AV_NOPTS_VALUE)
5926 trk->end_pts = pkt->pts;
5928 trk->end_pts = pkt->dts;
5929 trk->end_reliable = 1;
5930 mov_auto_flush_fragment(s, 0);
5934 return ff_mov_write_packet(s, pkt);
5937 static int mov_write_subtitle_end_packet(AVFormatContext *s,
5940 MOVMuxContext *mov = s->priv_data;
5941 AVPacket *end = mov->pkt;
5942 uint8_t data[2] = {0};
5945 end->size = sizeof(data);
5950 end->stream_index = stream_index;
5952 ret = mov_write_single_packet(s, end);
5953 av_packet_unref(end);
5958 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5960 MOVMuxContext *mov = s->priv_data;
5964 mov_flush_fragment(s, 1);
5968 trk = &mov->tracks[pkt->stream_index];
5970 if (is_cover_image(trk->st)) {
5973 if (trk->st->nb_frames >= 1) {
5974 if (trk->st->nb_frames == 1)
5975 av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d,"
5976 " ignoring.\n", pkt->stream_index);
5980 if ((ret = av_packet_ref(trk->cover_image, pkt)) < 0)
5988 return mov_write_single_packet(s, pkt); /* Passthrough. */
5991 * Subtitles require special handling.
5993 * 1) For full complaince, every track must have a sample at
5994 * dts == 0, which is rarely true for subtitles. So, as soon
5995 * as we see any packet with dts > 0, write an empty subtitle
5996 * at dts == 0 for any subtitle track with no samples in it.
5998 * 2) For each subtitle track, check if the current packet's
5999 * dts is past the duration of the last subtitle sample. If
6000 * so, we now need to write an end sample for that subtitle.
6002 * This must be done conditionally to allow for subtitles that
6003 * immediately replace each other, in which case an end sample
6004 * is not needed, and is, in fact, actively harmful.
6006 * 3) See mov_write_trailer for how the final end sample is
6009 for (i = 0; i < mov->nb_streams; i++) {
6010 MOVTrack *trk = &mov->tracks[i];
6013 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
6014 trk->track_duration < pkt->dts &&
6015 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
6016 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
6017 if (ret < 0) return ret;
6018 trk->last_sample_is_subtitle_end = 1;
6022 if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
6023 AVPacket *opkt = pkt;
6024 int reshuffle_ret, ret;
6025 if (trk->is_unaligned_qt_rgb) {
6026 int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
6027 int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
6028 reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
6029 if (reshuffle_ret < 0)
6030 return reshuffle_ret;
6033 if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
6034 ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
6039 } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
6040 (trk->par->format == AV_PIX_FMT_GRAY8 ||
6041 trk->par->format == AV_PIX_FMT_MONOBLACK)) {
6042 for (i = 0; i < pkt->size; i++)
6043 pkt->data[i] = ~pkt->data[i];
6045 if (reshuffle_ret) {
6046 ret = mov_write_single_packet(s, pkt);
6049 av_packet_free(&pkt);
6054 return mov_write_single_packet(s, pkt);
6058 // QuickTime chapters involve an additional text track with the chapter names
6059 // as samples, and a tref pointing from the other tracks to the chapter one.
6060 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
6064 MOVMuxContext *mov = s->priv_data;
6065 MOVTrack *track = &mov->tracks[tracknum];
6066 AVPacket *pkt = mov->pkt;
6069 track->mode = mov->mode;
6070 track->tag = MKTAG('t','e','x','t');
6071 track->timescale = MOV_TIMESCALE;
6072 track->par = avcodec_parameters_alloc();
6074 return AVERROR(ENOMEM);
6075 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
6077 // These properties are required to make QT recognize the chapter track
6078 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
6079 if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
6080 return AVERROR(ENOMEM);
6081 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
6083 if (avio_open_dyn_buf(&pb) >= 0) {
6087 /* Stub header (usually for Quicktime chapter track) */
6089 avio_wb32(pb, 0x01); // displayFlags
6090 avio_w8(pb, 0x00); // horizontal justification
6091 avio_w8(pb, 0x00); // vertical justification
6092 avio_w8(pb, 0x00); // bgColourRed
6093 avio_w8(pb, 0x00); // bgColourGreen
6094 avio_w8(pb, 0x00); // bgColourBlue
6095 avio_w8(pb, 0x00); // bgColourAlpha
6097 avio_wb16(pb, 0x00); // defTextBoxTop
6098 avio_wb16(pb, 0x00); // defTextBoxLeft
6099 avio_wb16(pb, 0x00); // defTextBoxBottom
6100 avio_wb16(pb, 0x00); // defTextBoxRight
6102 avio_wb16(pb, 0x00); // startChar
6103 avio_wb16(pb, 0x00); // endChar
6104 avio_wb16(pb, 0x01); // fontID
6105 avio_w8(pb, 0x00); // fontStyleFlags
6106 avio_w8(pb, 0x00); // fontSize
6107 avio_w8(pb, 0x00); // fgColourRed
6108 avio_w8(pb, 0x00); // fgColourGreen
6109 avio_w8(pb, 0x00); // fgColourBlue
6110 avio_w8(pb, 0x00); // fgColourAlpha
6112 avio_wb32(pb, 0x0D); // box size
6113 ffio_wfourcc(pb, "ftab"); // box atom name
6114 avio_wb16(pb, 0x01); // entry count
6116 avio_wb16(pb, 0x01); // font ID
6117 avio_w8(pb, 0x00); // font name length
6119 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
6120 track->par->extradata = buf;
6121 track->par->extradata_size = size;
6128 pkt->stream_index = tracknum;
6129 pkt->flags = AV_PKT_FLAG_KEY;
6131 for (i = 0; i < s->nb_chapters; i++) {
6132 AVChapter *c = s->chapters[i];
6133 AVDictionaryEntry *t;
6135 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
6136 pkt->pts = pkt->dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
6137 pkt->duration = end - pkt->dts;
6139 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
6140 static const char encd[12] = {
6141 0x00, 0x00, 0x00, 0x0C,
6143 0x00, 0x00, 0x01, 0x00 };
6144 len = strlen(t->value);
6145 pkt->size = len + 2 + 12;
6146 pkt->data = av_malloc(pkt->size);
6148 av_packet_unref(pkt);
6149 return AVERROR(ENOMEM);
6151 AV_WB16(pkt->data, len);
6152 memcpy(pkt->data + 2, t->value, len);
6153 memcpy(pkt->data + len + 2, encd, sizeof(encd));
6154 ff_mov_write_packet(s, pkt);
6155 av_freep(&pkt->data);
6159 av_packet_unref(mov->pkt);
6165 static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr)
6169 /* compute the frame number */
6170 ret = av_timecode_init_from_string(tc, s->streams[src_index]->avg_frame_rate, tcstr, s);
6174 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
6176 MOVMuxContext *mov = s->priv_data;
6177 MOVTrack *track = &mov->tracks[index];
6178 AVStream *src_st = s->streams[src_index];
6180 AVPacket *pkt = mov->pkt;
6181 AVRational rate = src_st->avg_frame_rate;
6184 /* tmcd track based on video stream */
6185 track->mode = mov->mode;
6186 track->tag = MKTAG('t','m','c','d');
6187 track->src_track = src_index;
6188 track->timescale = mov->tracks[src_index].timescale;
6189 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
6190 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
6192 /* set st to src_st for metadata access*/
6195 /* encode context: tmcd data stream */
6196 track->par = avcodec_parameters_alloc();
6198 return AVERROR(ENOMEM);
6199 track->par->codec_type = AVMEDIA_TYPE_DATA;
6200 track->par->codec_tag = track->tag;
6201 track->st->avg_frame_rate = rate;
6203 /* the tmcd track just contains one packet with the frame number */
6205 pkt->stream_index = index;
6206 pkt->flags = AV_PKT_FLAG_KEY;
6208 AV_WB32(pkt->data, tc.start);
6209 ret = ff_mov_write_packet(s, pkt);
6210 av_packet_unref(pkt);
6215 * st->disposition controls the "enabled" flag in the tkhd tag.
6216 * QuickTime will not play a track if it is not enabled. So make sure
6217 * that one track of each type (audio, video, subtitle) is enabled.
6219 * Subtitles are special. For audio and video, setting "enabled" also
6220 * makes the track "default" (i.e. it is rendered when played). For
6221 * subtitles, an "enabled" subtitle is not rendered by default, but
6222 * if no subtitle is enabled, the subtitle menu in QuickTime will be
6225 static void enable_tracks(AVFormatContext *s)
6227 MOVMuxContext *mov = s->priv_data;
6229 int enabled[AVMEDIA_TYPE_NB];
6230 int first[AVMEDIA_TYPE_NB];
6232 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6237 for (i = 0; i < s->nb_streams; i++) {
6238 AVStream *st = s->streams[i];
6240 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
6241 st->codecpar->codec_type >= AVMEDIA_TYPE_NB ||
6245 if (first[st->codecpar->codec_type] < 0)
6246 first[st->codecpar->codec_type] = i;
6247 if (st->disposition & AV_DISPOSITION_DEFAULT) {
6248 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
6249 enabled[st->codecpar->codec_type]++;
6253 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6255 case AVMEDIA_TYPE_VIDEO:
6256 case AVMEDIA_TYPE_AUDIO:
6257 case AVMEDIA_TYPE_SUBTITLE:
6259 mov->per_stream_grouping = 1;
6260 if (!enabled[i] && first[i] >= 0)
6261 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
6267 static void mov_free(AVFormatContext *s)
6269 MOVMuxContext *mov = s->priv_data;
6272 av_packet_free(&mov->pkt);
6277 if (mov->chapter_track) {
6278 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
6281 for (i = 0; i < mov->nb_streams; i++) {
6282 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
6283 ff_mov_close_hinting(&mov->tracks[i]);
6284 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
6285 av_freep(&mov->tracks[i].par);
6286 av_freep(&mov->tracks[i].cluster);
6287 av_freep(&mov->tracks[i].frag_info);
6288 av_packet_free(&mov->tracks[i].cover_image);
6290 if (mov->tracks[i].eac3_priv) {
6291 struct eac3_info *info = mov->tracks[i].eac3_priv;
6292 av_packet_free(&info->pkt);
6293 av_freep(&mov->tracks[i].eac3_priv);
6295 if (mov->tracks[i].vos_len)
6296 av_freep(&mov->tracks[i].vos_data);
6298 ff_mov_cenc_free(&mov->tracks[i].cenc);
6299 ffio_free_dyn_buf(&mov->tracks[i].mdat_buf);
6302 av_freep(&mov->tracks);
6303 ffio_free_dyn_buf(&mov->mdat_buf);
6306 static uint32_t rgb_to_yuv(uint32_t rgb)
6311 r = (rgb >> 16) & 0xFF;
6312 g = (rgb >> 8) & 0xFF;
6315 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
6316 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
6317 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
6319 return (y << 16) | (cr << 8) | cb;
6322 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
6325 int i, width = 720, height = 480;
6326 int have_palette = 0, have_size = 0;
6327 uint32_t palette[16];
6328 char *cur = st->codecpar->extradata;
6330 while (cur && *cur) {
6331 if (strncmp("palette:", cur, 8) == 0) {
6333 count = sscanf(cur + 8,
6334 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6335 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6336 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6337 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
6338 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
6339 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
6340 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
6341 &palette[12], &palette[13], &palette[14], &palette[15]);
6343 for (i = 0; i < count; i++) {
6344 palette[i] = rgb_to_yuv(palette[i]);
6347 } else if (!strncmp("size:", cur, 5)) {
6348 sscanf(cur + 5, "%dx%d", &width, &height);
6351 if (have_palette && have_size)
6353 cur += strcspn(cur, "\n\r");
6354 cur += strspn(cur, "\n\r");
6357 track->vos_data = av_malloc(16*4 + AV_INPUT_BUFFER_PADDING_SIZE);
6358 if (!track->vos_data)
6359 return AVERROR(ENOMEM);
6360 for (i = 0; i < 16; i++) {
6361 AV_WB32(track->vos_data + i * 4, palette[i]);
6363 memset(track->vos_data + 16*4, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6364 track->vos_len = 16 * 4;
6366 st->codecpar->width = width;
6367 st->codecpar->height = track->height = height;
6372 static int mov_init(AVFormatContext *s)
6374 MOVMuxContext *mov = s->priv_data;
6379 /* Default mode == MP4 */
6380 mov->mode = MODE_MP4;
6382 #define IS_MODE(muxer, config) (CONFIG_ ## config ## _MUXER && !strcmp(#muxer, s->oformat->name))
6383 if (IS_MODE(3gp, TGP)) mov->mode = MODE_3GP;
6384 else if (IS_MODE(3g2, TG2)) mov->mode = MODE_3GP|MODE_3G2;
6385 else if (IS_MODE(mov, MOV)) mov->mode = MODE_MOV;
6386 else if (IS_MODE(psp, PSP)) mov->mode = MODE_PSP;
6387 else if (IS_MODE(ipod, IPOD)) mov->mode = MODE_IPOD;
6388 else if (IS_MODE(ismv, ISMV)) mov->mode = MODE_ISM;
6389 else if (IS_MODE(f4v, F4V)) mov->mode = MODE_F4V;
6392 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
6393 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
6395 /* Set the FRAGMENT flag if any of the fragmentation methods are
6397 if (mov->max_fragment_duration || mov->max_fragment_size ||
6398 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
6399 FF_MOV_FLAG_FRAG_KEYFRAME |
6400 FF_MOV_FLAG_FRAG_CUSTOM |
6401 FF_MOV_FLAG_FRAG_EVERY_FRAME))
6402 mov->flags |= FF_MOV_FLAG_FRAGMENT;
6404 /* Set other implicit flags immediately */
6405 if (mov->mode == MODE_ISM)
6406 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
6407 FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6408 if (mov->flags & FF_MOV_FLAG_DASH)
6409 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6410 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
6411 if (mov->flags & FF_MOV_FLAG_CMAF)
6412 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6413 FF_MOV_FLAG_DEFAULT_BASE_MOOF | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6415 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && s->flags & AVFMT_FLAG_AUTO_BSF) {
6416 av_log(s, AV_LOG_VERBOSE, "Empty MOOV enabled; disabling automatic bitstream filtering\n");
6417 s->flags &= ~AVFMT_FLAG_AUTO_BSF;
6420 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX && mov->flags & FF_MOV_FLAG_SKIP_SIDX) {
6421 av_log(s, AV_LOG_WARNING, "Global SIDX enabled; Ignoring skip_sidx option\n");
6422 mov->flags &= ~FF_MOV_FLAG_SKIP_SIDX;
6425 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
6426 mov->reserved_moov_size = -1;
6429 if (mov->use_editlist < 0) {
6430 mov->use_editlist = 1;
6431 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
6432 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6433 // If we can avoid needing an edit list by shifting the
6434 // tracks, prefer that over (trying to) write edit lists
6435 // in fragmented output.
6436 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
6437 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
6438 mov->use_editlist = 0;
6440 if (mov->flags & FF_MOV_FLAG_CMAF) {
6441 // CMAF Track requires negative cts offsets without edit lists
6442 mov->use_editlist = 0;
6445 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6446 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
6447 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
6449 if (mov->flags & FF_MOV_FLAG_CMAF && mov->use_editlist) {
6450 av_log(s, AV_LOG_WARNING, "Edit list enabled; Assuming writing CMAF Track File\n");
6451 mov->flags &= ~FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6453 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO &&
6454 !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
6455 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
6457 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
6458 * if the latter is set that's enough and omit_tfhd_offset doesn't
6459 * add anything extra on top of that. */
6460 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
6461 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
6462 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
6464 if (mov->frag_interleave &&
6465 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
6466 av_log(s, AV_LOG_ERROR,
6467 "Sample interleaving in fragments is mutually exclusive with "
6468 "omit_tfhd_offset and separate_moof\n");
6469 return AVERROR(EINVAL);
6472 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
6473 * is enabled, we don't support non-seekable output at all. */
6474 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
6475 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
6476 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
6477 return AVERROR(EINVAL);
6480 mov->nb_streams = s->nb_streams;
6481 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6482 mov->chapter_track = mov->nb_streams++;
6484 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6485 for (i = 0; i < s->nb_streams; i++)
6486 if (rtp_hinting_needed(s->streams[i]))
6490 if ( mov->write_tmcd == -1 && (mov->mode == MODE_MOV || mov->mode == MODE_MP4)
6491 || mov->write_tmcd == 1) {
6492 AVDictionaryEntry *global_tcr = av_dict_get(s->metadata, "timecode",
6495 /* +1 tmcd track for each video stream with a timecode */
6496 for (i = 0; i < s->nb_streams; i++) {
6497 AVStream *st = s->streams[i];
6498 AVDictionaryEntry *t = global_tcr;
6499 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
6500 (t || (t=av_dict_get(st->metadata, "timecode", NULL, 0)))) {
6502 ret = mov_check_timecode_track(s, &tc, i, t->value);
6504 mov->nb_meta_tmcd++;
6508 /* check if there is already a tmcd track to remux */
6509 if (mov->nb_meta_tmcd) {
6510 for (i = 0; i < s->nb_streams; i++) {
6511 AVStream *st = s->streams[i];
6512 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
6513 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
6514 "so timecode metadata are now ignored\n");
6515 mov->nb_meta_tmcd = 0;
6520 mov->nb_streams += mov->nb_meta_tmcd;
6523 mov->pkt = av_packet_alloc();
6525 return AVERROR(ENOMEM);
6527 // Reserve an extra stream for chapters for the case where chapters
6528 // are written in the trailer
6529 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
6531 return AVERROR(ENOMEM);
6533 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
6534 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
6535 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
6537 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
6538 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
6539 mov->encryption_key_len, AES_CTR_KEY_SIZE);
6540 return AVERROR(EINVAL);
6543 if (mov->encryption_kid_len != CENC_KID_SIZE) {
6544 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
6545 mov->encryption_kid_len, CENC_KID_SIZE);
6546 return AVERROR(EINVAL);
6549 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
6550 mov->encryption_scheme_str);
6551 return AVERROR(EINVAL);
6555 for (i = 0; i < s->nb_streams; i++) {
6556 AVStream *st= s->streams[i];
6557 MOVTrack *track= &mov->tracks[i];
6558 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
6561 track->par = st->codecpar;
6562 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
6563 if (track->language < 0)
6564 track->language = 32767; // Unspecified Macintosh language code
6565 track->mode = mov->mode;
6566 track->tag = mov_find_codec_tag(s, track);
6568 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
6569 "codec not currently supported in container\n",
6570 avcodec_get_name(st->codecpar->codec_id), i);
6571 return AVERROR(EINVAL);
6573 /* If hinting of this track is enabled by a later hint track,
6574 * this is updated. */
6575 track->hint_track = -1;
6576 track->start_dts = AV_NOPTS_VALUE;
6577 track->start_cts = AV_NOPTS_VALUE;
6578 track->end_pts = AV_NOPTS_VALUE;
6579 track->dts_shift = AV_NOPTS_VALUE;
6580 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6581 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
6582 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
6583 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
6584 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
6585 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
6586 return AVERROR(EINVAL);
6588 track->height = track->tag >> 24 == 'n' ? 486 : 576;
6590 if (mov->video_track_timescale) {
6591 track->timescale = mov->video_track_timescale;
6592 if (mov->mode == MODE_ISM && mov->video_track_timescale != 10000000)
6593 av_log(s, AV_LOG_WARNING, "Warning: some tools, like mp4split, assume a timescale of 10000000 for ISMV.\n");
6595 track->timescale = st->time_base.den;
6596 while(track->timescale < 10000)
6597 track->timescale *= 2;
6599 if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
6600 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
6601 return AVERROR(EINVAL);
6603 if (track->mode == MODE_MOV && track->timescale > 100000)
6604 av_log(s, AV_LOG_WARNING,
6605 "WARNING codec timebase is very high. If duration is too long,\n"
6606 "file may not be playable by quicktime. Specify a shorter timebase\n"
6607 "or choose different container.\n");
6608 if (track->mode == MODE_MOV &&
6609 track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
6610 track->tag == MKTAG('r','a','w',' ')) {
6611 enum AVPixelFormat pix_fmt = track->par->format;
6612 if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
6613 pix_fmt = AV_PIX_FMT_MONOWHITE;
6614 track->is_unaligned_qt_rgb =
6615 pix_fmt == AV_PIX_FMT_RGB24 ||
6616 pix_fmt == AV_PIX_FMT_BGR24 ||
6617 pix_fmt == AV_PIX_FMT_PAL8 ||
6618 pix_fmt == AV_PIX_FMT_GRAY8 ||
6619 pix_fmt == AV_PIX_FMT_MONOWHITE ||
6620 pix_fmt == AV_PIX_FMT_MONOBLACK;
6622 if (track->par->codec_id == AV_CODEC_ID_VP9 ||
6623 track->par->codec_id == AV_CODEC_ID_AV1) {
6624 if (track->mode != MODE_MP4) {
6625 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6626 return AVERROR(EINVAL);
6628 } else if (track->par->codec_id == AV_CODEC_ID_VP8) {
6629 /* altref frames handling is not defined in the spec as of version v1.0,
6630 * so just forbid muxing VP8 streams altogether until a new version does */
6631 av_log(s, AV_LOG_ERROR, "VP8 muxing is currently not supported.\n");
6632 return AVERROR_PATCHWELCOME;
6634 if (is_cover_image(st)) {
6635 track->cover_image = av_packet_alloc();
6636 if (!track->cover_image)
6637 return AVERROR(ENOMEM);
6639 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
6640 track->timescale = st->codecpar->sample_rate;
6641 if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
6642 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
6643 track->audio_vbr = 1;
6644 }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
6645 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
6646 st->codecpar->codec_id == AV_CODEC_ID_ILBC){
6647 if (!st->codecpar->block_align) {
6648 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
6649 return AVERROR(EINVAL);
6651 track->sample_size = st->codecpar->block_align;
6652 }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
6653 track->audio_vbr = 1;
6655 track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
6657 if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
6658 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
6659 track->audio_vbr = 1;
6661 if (track->mode != MODE_MOV &&
6662 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
6663 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
6664 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
6665 i, track->par->sample_rate);
6666 return AVERROR(EINVAL);
6668 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
6669 i, track->par->sample_rate);
6672 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
6673 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
6674 track->par->codec_id == AV_CODEC_ID_OPUS) {
6675 if (track->mode != MODE_MP4) {
6676 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6677 return AVERROR(EINVAL);
6679 if (track->par->codec_id != AV_CODEC_ID_OPUS &&
6680 s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
6681 av_log(s, AV_LOG_ERROR,
6682 "%s in MP4 support is experimental, add "
6683 "'-strict %d' if you want to use it.\n",
6684 avcodec_get_name(track->par->codec_id), FF_COMPLIANCE_EXPERIMENTAL);
6685 return AVERROR_EXPERIMENTAL;
6688 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6689 track->timescale = st->time_base.den;
6690 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
6691 track->timescale = st->time_base.den;
6693 track->timescale = MOV_TIMESCALE;
6696 track->height = st->codecpar->height;
6697 /* The Protected Interoperable File Format (PIFF) standard, used by ISMV recommends but
6698 doesn't mandate a track timescale of 10,000,000. The muxer allows a custom timescale
6699 for video tracks, so if user-set, it isn't overwritten */
6700 if (mov->mode == MODE_ISM &&
6701 (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ||
6702 (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !mov->video_track_timescale))) {
6703 track->timescale = 10000000;
6706 avpriv_set_pts_info(st, 64, 1, track->timescale);
6708 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
6709 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
6710 track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
6720 static int mov_write_header(AVFormatContext *s)
6722 AVIOContext *pb = s->pb;
6723 MOVMuxContext *mov = s->priv_data;
6724 int i, ret, hint_track = 0, tmcd_track = 0, nb_tracks = s->nb_streams;
6726 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6729 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6730 hint_track = nb_tracks;
6731 for (i = 0; i < s->nb_streams; i++)
6732 if (rtp_hinting_needed(s->streams[i]))
6736 if (mov->nb_meta_tmcd)
6737 tmcd_track = nb_tracks;
6739 for (i = 0; i < s->nb_streams; i++) {
6741 AVStream *st= s->streams[i];
6742 MOVTrack *track= &mov->tracks[i];
6744 /* copy extradata if it exists */
6745 if (st->codecpar->extradata_size) {
6746 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
6747 mov_create_dvd_sub_decoder_specific_info(track, st);
6748 else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
6749 track->vos_len = st->codecpar->extradata_size;
6750 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
6751 if (!track->vos_data) {
6752 return AVERROR(ENOMEM);
6754 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
6755 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6759 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6760 track->par->channel_layout != AV_CH_LAYOUT_MONO)
6763 for (j = 0; j < s->nb_streams; j++) {
6764 AVStream *stj= s->streams[j];
6765 MOVTrack *trackj= &mov->tracks[j];
6769 if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6770 trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
6771 trackj->language != track->language ||
6772 trackj->tag != track->tag
6775 track->multichannel_as_mono++;
6779 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6780 if ((ret = mov_write_identification(pb, s)) < 0)
6784 if (mov->reserved_moov_size){
6785 mov->reserved_header_pos = avio_tell(pb);
6786 if (mov->reserved_moov_size > 0)
6787 avio_skip(pb, mov->reserved_moov_size);
6790 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
6791 /* If no fragmentation options have been set, set a default. */
6792 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
6793 FF_MOV_FLAG_FRAG_CUSTOM |
6794 FF_MOV_FLAG_FRAG_EVERY_FRAME)) &&
6795 !mov->max_fragment_duration && !mov->max_fragment_size)
6796 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
6798 if (mov->flags & FF_MOV_FLAG_FASTSTART)
6799 mov->reserved_header_pos = avio_tell(pb);
6800 mov_write_mdat_tag(pb, mov);
6803 ff_parse_creation_time_metadata(s, &mov->time, 1);
6805 mov->time += 0x7C25B080; // 1970 based -> 1904 based
6807 if (mov->chapter_track)
6808 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6811 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6812 for (i = 0; i < s->nb_streams; i++) {
6813 if (rtp_hinting_needed(s->streams[i])) {
6814 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
6821 if (mov->nb_meta_tmcd) {
6822 const AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata,
6823 "timecode", NULL, 0);
6824 /* Initialize the tmcd tracks */
6825 for (i = 0; i < s->nb_streams; i++) {
6826 AVStream *st = s->streams[i];
6829 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6832 t = av_dict_get(st->metadata, "timecode", NULL, 0);
6835 if (mov_check_timecode_track(s, &tc, i, t->value) < 0)
6837 if ((ret = mov_create_timecode_track(s, tmcd_track, i, tc)) < 0)
6846 if (mov->flags & FF_MOV_FLAG_ISML)
6847 mov_write_isml_manifest(pb, mov, s);
6849 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6850 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6851 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
6853 mov->moov_written = 1;
6854 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
6855 mov->reserved_header_pos = avio_tell(pb);
6861 static int get_moov_size(AVFormatContext *s)
6864 AVIOContext *moov_buf;
6865 MOVMuxContext *mov = s->priv_data;
6867 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
6869 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
6871 return ffio_close_null_buf(moov_buf);
6874 static int get_sidx_size(AVFormatContext *s)
6878 MOVMuxContext *mov = s->priv_data;
6880 if ((ret = ffio_open_null_buf(&buf)) < 0)
6882 mov_write_sidx_tags(buf, mov, -1, 0);
6883 return ffio_close_null_buf(buf);
6887 * This function gets the moov size if moved to the top of the file: the chunk
6888 * offset table can switch between stco (32-bit entries) to co64 (64-bit
6889 * entries) when the moov is moved to the beginning, so the size of the moov
6890 * would change. It also updates the chunk offset tables.
6892 static int compute_moov_size(AVFormatContext *s)
6894 int i, moov_size, moov_size2;
6895 MOVMuxContext *mov = s->priv_data;
6897 moov_size = get_moov_size(s);
6901 for (i = 0; i < mov->nb_streams; i++)
6902 mov->tracks[i].data_offset += moov_size;
6904 moov_size2 = get_moov_size(s);
6908 /* if the size changed, we just switched from stco to co64 and need to
6909 * update the offsets */
6910 if (moov_size2 != moov_size)
6911 for (i = 0; i < mov->nb_streams; i++)
6912 mov->tracks[i].data_offset += moov_size2 - moov_size;
6917 static int compute_sidx_size(AVFormatContext *s)
6920 MOVMuxContext *mov = s->priv_data;
6922 sidx_size = get_sidx_size(s);
6926 for (i = 0; i < mov->nb_streams; i++)
6927 mov->tracks[i].data_offset += sidx_size;
6932 static int shift_data(AVFormatContext *s)
6934 int ret = 0, moov_size;
6935 MOVMuxContext *mov = s->priv_data;
6936 int64_t pos, pos_end;
6937 uint8_t *buf, *read_buf[2];
6938 int read_buf_id = 0;
6940 AVIOContext *read_pb;
6942 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
6943 moov_size = compute_sidx_size(s);
6945 moov_size = compute_moov_size(s);
6949 buf = av_malloc(moov_size * 2);
6951 return AVERROR(ENOMEM);
6953 read_buf[1] = buf + moov_size;
6955 /* Shift the data: the AVIO context of the output can only be used for
6956 * writing, so we re-open the same output, but for reading. It also avoids
6957 * a read/seek/write/seek back and forth. */
6959 ret = s->io_open(s, &read_pb, s->url, AVIO_FLAG_READ, NULL);
6961 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
6962 "the second pass (faststart)\n", s->url);
6966 /* mark the end of the shift to up to the last data we wrote, and get ready
6968 pos_end = avio_tell(s->pb);
6969 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
6971 /* start reading at where the new moov will be placed */
6972 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
6973 pos = avio_tell(read_pb);
6975 #define READ_BLOCK do { \
6976 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
6980 /* shift data by chunk of at most moov_size */
6985 n = read_size[read_buf_id];
6988 avio_write(s->pb, read_buf[read_buf_id], n);
6990 } while (pos < pos_end);
6991 ff_format_io_close(s, &read_pb);
6998 static int mov_write_trailer(AVFormatContext *s)
7000 MOVMuxContext *mov = s->priv_data;
7001 AVIOContext *pb = s->pb;
7006 if (mov->need_rewrite_extradata) {
7007 for (i = 0; i < s->nb_streams; i++) {
7008 MOVTrack *track = &mov->tracks[i];
7009 AVCodecParameters *par = track->par;
7011 track->vos_len = par->extradata_size;
7012 av_freep(&track->vos_data);
7013 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
7014 if (!track->vos_data)
7015 return AVERROR(ENOMEM);
7016 memcpy(track->vos_data, par->extradata, track->vos_len);
7017 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
7019 mov->need_rewrite_extradata = 0;
7023 * Before actually writing the trailer, make sure that there are no
7024 * dangling subtitles, that need a terminating sample.
7026 for (i = 0; i < mov->nb_streams; i++) {
7027 MOVTrack *trk = &mov->tracks[i];
7028 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
7029 !trk->last_sample_is_subtitle_end) {
7030 mov_write_subtitle_end_packet(s, i, trk->track_duration);
7031 trk->last_sample_is_subtitle_end = 1;
7035 // If there were no chapters when the header was written, but there
7036 // are chapters now, write them in the trailer. This only works
7037 // when we are not doing fragments.
7038 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
7039 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
7040 mov->chapter_track = mov->nb_streams++;
7041 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
7046 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
7047 moov_pos = avio_tell(pb);
7049 /* Write size of mdat tag */
7050 if (mov->mdat_size + 8 <= UINT32_MAX) {
7051 avio_seek(pb, mov->mdat_pos, SEEK_SET);
7052 avio_wb32(pb, mov->mdat_size + 8);
7054 /* overwrite 'wide' placeholder atom */
7055 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
7056 /* special value: real atom size will be 64 bit value after
7059 ffio_wfourcc(pb, "mdat");
7060 avio_wb64(pb, mov->mdat_size + 16);
7062 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
7064 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
7065 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
7066 res = shift_data(s);
7069 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
7070 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7072 } else if (mov->reserved_moov_size > 0) {
7074 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7076 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
7078 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
7079 return AVERROR(EINVAL);
7081 avio_wb32(pb, size);
7082 ffio_wfourcc(pb, "free");
7083 ffio_fill(pb, 0, size - 8);
7084 avio_seek(pb, moov_pos, SEEK_SET);
7086 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7091 mov_auto_flush_fragment(s, 1);
7092 for (i = 0; i < mov->nb_streams; i++)
7093 mov->tracks[i].data_offset = 0;
7094 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
7096 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
7097 res = shift_data(s);
7100 end = avio_tell(pb);
7101 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
7102 mov_write_sidx_tags(pb, mov, -1, 0);
7103 avio_seek(pb, end, SEEK_SET);
7105 if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
7106 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
7107 res = mov_write_mfra_tag(pb, mov);
7116 static int mov_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
7119 AVStream *st = s->streams[pkt->stream_index];
7121 if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
7122 if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
7123 ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
7124 } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
7125 ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
7131 #if CONFIG_TGP_MUXER || CONFIG_TG2_MUXER
7132 static const AVCodecTag codec_3gp_tags[] = {
7133 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
7134 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7135 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7136 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7137 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
7138 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
7139 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7140 { AV_CODEC_ID_NONE, 0 },
7142 static const AVCodecTag *const codec_3gp_tags_list[] = { codec_3gp_tags, NULL };
7145 static const AVCodecTag codec_mp4_tags[] = {
7146 { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
7147 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
7148 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
7149 { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') },
7150 { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') },
7151 { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '4', 'v') },
7152 { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '4', 'v') },
7153 { AV_CODEC_ID_MJPEG, MKTAG('m', 'p', '4', 'v') },
7154 { AV_CODEC_ID_PNG, MKTAG('m', 'p', '4', 'v') },
7155 { AV_CODEC_ID_JPEG2000, MKTAG('m', 'p', '4', 'v') },
7156 { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') },
7157 { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
7158 { AV_CODEC_ID_TSCC2, MKTAG('m', 'p', '4', 'v') },
7159 { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') },
7160 { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') },
7161 { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
7162 { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
7163 { AV_CODEC_ID_MP4ALS, MKTAG('m', 'p', '4', 'a') },
7164 { AV_CODEC_ID_MP3, MKTAG('m', 'p', '4', 'a') },
7165 { AV_CODEC_ID_MP2, MKTAG('m', 'p', '4', 'a') },
7166 { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') },
7167 { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') },
7168 { AV_CODEC_ID_DTS, MKTAG('m', 'p', '4', 'a') },
7169 { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') },
7170 { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') },
7171 { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') },
7172 { AV_CODEC_ID_VORBIS, MKTAG('m', 'p', '4', 'a') },
7173 { AV_CODEC_ID_QCELP, MKTAG('m', 'p', '4', 'a') },
7174 { AV_CODEC_ID_EVRC, MKTAG('m', 'p', '4', 'a') },
7175 { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') },
7176 { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
7177 { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
7178 { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') },
7179 { AV_CODEC_ID_NONE, 0 },
7181 #if CONFIG_MP4_MUXER || CONFIG_PSP_MUXER
7182 static const AVCodecTag *const mp4_codec_tags_list[] = { codec_mp4_tags, NULL };
7185 static const AVCodecTag codec_ism_tags[] = {
7186 { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') },
7187 { AV_CODEC_ID_NONE , 0 },
7190 static const AVCodecTag codec_ipod_tags[] = {
7191 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7192 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7193 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7194 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
7195 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
7196 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7197 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
7198 { AV_CODEC_ID_NONE, 0 },
7201 static const AVCodecTag codec_f4v_tags[] = {
7202 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
7203 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7204 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7205 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
7206 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
7207 { AV_CODEC_ID_NONE, 0 },
7210 #if CONFIG_MOV_MUXER
7212 const AVOutputFormat ff_mov_muxer = {
7214 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
7215 .extensions = "mov",
7216 .priv_data_size = sizeof(MOVMuxContext),
7217 .audio_codec = AV_CODEC_ID_AAC,
7218 .video_codec = CONFIG_LIBX264_ENCODER ?
7219 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7221 .write_header = mov_write_header,
7222 .write_packet = mov_write_packet,
7223 .write_trailer = mov_write_trailer,
7225 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7226 .codec_tag = (const AVCodecTag* const []){
7227 ff_codec_movvideo_tags, ff_codec_movaudio_tags, ff_codec_movsubtitle_tags, 0
7229 .check_bitstream = mov_check_bitstream,
7230 .priv_class = &mov_muxer_class,
7233 #if CONFIG_TGP_MUXER
7235 const AVOutputFormat ff_tgp_muxer = {
7237 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
7238 .extensions = "3gp",
7239 .priv_data_size = sizeof(MOVMuxContext),
7240 .audio_codec = AV_CODEC_ID_AMR_NB,
7241 .video_codec = AV_CODEC_ID_H263,
7243 .write_header = mov_write_header,
7244 .write_packet = mov_write_packet,
7245 .write_trailer = mov_write_trailer,
7247 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7248 .codec_tag = codec_3gp_tags_list,
7249 .check_bitstream = mov_check_bitstream,
7250 .priv_class = &tgp_muxer_class,
7253 #if CONFIG_MP4_MUXER
7255 const AVOutputFormat ff_mp4_muxer = {
7257 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
7258 .mime_type = "video/mp4",
7259 .extensions = "mp4",
7260 .priv_data_size = sizeof(MOVMuxContext),
7261 .audio_codec = AV_CODEC_ID_AAC,
7262 .video_codec = CONFIG_LIBX264_ENCODER ?
7263 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7265 .write_header = mov_write_header,
7266 .write_packet = mov_write_packet,
7267 .write_trailer = mov_write_trailer,
7269 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7270 .codec_tag = mp4_codec_tags_list,
7271 .check_bitstream = mov_check_bitstream,
7272 .priv_class = &mp4_muxer_class,
7275 #if CONFIG_PSP_MUXER
7277 const AVOutputFormat ff_psp_muxer = {
7279 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
7280 .extensions = "mp4,psp",
7281 .priv_data_size = sizeof(MOVMuxContext),
7282 .audio_codec = AV_CODEC_ID_AAC,
7283 .video_codec = CONFIG_LIBX264_ENCODER ?
7284 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7286 .write_header = mov_write_header,
7287 .write_packet = mov_write_packet,
7288 .write_trailer = mov_write_trailer,
7290 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7291 .codec_tag = mp4_codec_tags_list,
7292 .check_bitstream = mov_check_bitstream,
7293 .priv_class = &psp_muxer_class,
7296 #if CONFIG_TG2_MUXER
7298 const AVOutputFormat ff_tg2_muxer = {
7300 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
7301 .extensions = "3g2",
7302 .priv_data_size = sizeof(MOVMuxContext),
7303 .audio_codec = AV_CODEC_ID_AMR_NB,
7304 .video_codec = AV_CODEC_ID_H263,
7306 .write_header = mov_write_header,
7307 .write_packet = mov_write_packet,
7308 .write_trailer = mov_write_trailer,
7310 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7311 .codec_tag = codec_3gp_tags_list,
7312 .check_bitstream = mov_check_bitstream,
7313 .priv_class = &tg2_muxer_class,
7316 #if CONFIG_IPOD_MUXER
7318 const AVOutputFormat ff_ipod_muxer = {
7320 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
7321 .mime_type = "video/mp4",
7322 .extensions = "m4v,m4a,m4b",
7323 .priv_data_size = sizeof(MOVMuxContext),
7324 .audio_codec = AV_CODEC_ID_AAC,
7325 .video_codec = AV_CODEC_ID_H264,
7327 .write_header = mov_write_header,
7328 .write_packet = mov_write_packet,
7329 .write_trailer = mov_write_trailer,
7331 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7332 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
7333 .check_bitstream = mov_check_bitstream,
7334 .priv_class = &ipod_muxer_class,
7337 #if CONFIG_ISMV_MUXER
7339 const AVOutputFormat ff_ismv_muxer = {
7341 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
7342 .mime_type = "video/mp4",
7343 .extensions = "ismv,isma",
7344 .priv_data_size = sizeof(MOVMuxContext),
7345 .audio_codec = AV_CODEC_ID_AAC,
7346 .video_codec = AV_CODEC_ID_H264,
7348 .write_header = mov_write_header,
7349 .write_packet = mov_write_packet,
7350 .write_trailer = mov_write_trailer,
7352 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7353 .codec_tag = (const AVCodecTag* const []){
7354 codec_mp4_tags, codec_ism_tags, 0 },
7355 .check_bitstream = mov_check_bitstream,
7356 .priv_class = &ismv_muxer_class,
7359 #if CONFIG_F4V_MUXER
7361 const AVOutputFormat ff_f4v_muxer = {
7363 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
7364 .mime_type = "application/f4v",
7365 .extensions = "f4v",
7366 .priv_data_size = sizeof(MOVMuxContext),
7367 .audio_codec = AV_CODEC_ID_AAC,
7368 .video_codec = AV_CODEC_ID_H264,
7370 .write_header = mov_write_header,
7371 .write_packet = mov_write_packet,
7372 .write_trailer = mov_write_trailer,
7374 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
7375 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
7376 .check_bitstream = mov_check_bitstream,
7377 .priv_class = &f4v_muxer_class,