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);
801 ffio_wfourcc(pb, "dOps");
802 avio_w8(pb, 0); /* Version */
803 if (track->par->extradata_size < 19) {
804 av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
805 return AVERROR_INVALIDDATA;
807 /* extradata contains an Ogg OpusHead, other than byte-ordering and
808 OpusHead's preceeding magic/version, OpusSpecificBox is currently
810 avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
811 avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
812 avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
813 avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
814 /* Write the rest of the header out without byte-swapping. */
815 avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
817 return update_size(pb, pos);
820 static int mov_write_dmlp_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
822 int64_t pos = avio_tell(pb);
825 ffio_wfourcc(pb, "dmlp");
827 if (track->vos_len < 20) {
828 av_log(s, AV_LOG_ERROR,
829 "Cannot write moov atom before TrueHD packets."
830 " Set the delay_moov flag to fix this.\n");
831 return AVERROR(EINVAL);
834 length = (AV_RB16(track->vos_data) & 0xFFF) * 2;
835 if (length < 20 || length > track->vos_len)
836 return AVERROR_INVALIDDATA;
838 // Only TrueHD is supported
839 if (AV_RB32(track->vos_data + 4) != 0xF8726FBA)
840 return AVERROR_INVALIDDATA;
842 avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */
843 avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */
844 avio_wb32(pb, 0); /* reserved */
846 return update_size(pb, pos);
849 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
851 uint32_t layout_tag, bitmap;
852 int64_t pos = avio_tell(pb);
854 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
855 track->par->channel_layout,
858 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
859 "lack of channel information\n");
863 if (track->multichannel_as_mono)
866 avio_wb32(pb, 0); // Size
867 ffio_wfourcc(pb, "chan"); // Type
868 avio_w8(pb, 0); // Version
869 avio_wb24(pb, 0); // Flags
870 avio_wb32(pb, layout_tag); // mChannelLayoutTag
871 avio_wb32(pb, bitmap); // mChannelBitmap
872 avio_wb32(pb, 0); // mNumberChannelDescriptions
874 return update_size(pb, pos);
877 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
879 int64_t pos = avio_tell(pb);
881 avio_wb32(pb, 0); /* size */
882 ffio_wfourcc(pb, "wave");
884 if (track->par->codec_id != AV_CODEC_ID_QDM2) {
885 avio_wb32(pb, 12); /* size */
886 ffio_wfourcc(pb, "frma");
887 avio_wl32(pb, track->tag);
890 if (track->par->codec_id == AV_CODEC_ID_AAC) {
891 /* useless atom needed by mplayer, ipod, not needed by quicktime */
892 avio_wb32(pb, 12); /* size */
893 ffio_wfourcc(pb, "mp4a");
895 mov_write_esds_tag(pb, track);
896 } else if (mov_pcm_le_gt16(track->par->codec_id)) {
897 mov_write_enda_tag(pb);
898 } else if (mov_pcm_be_gt16(track->par->codec_id)) {
899 mov_write_enda_tag_be(pb);
900 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
901 mov_write_amr_tag(pb, track);
902 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
903 mov_write_ac3_tag(s, pb, track);
904 } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
905 mov_write_eac3_tag(s, pb, track);
906 } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
907 track->par->codec_id == AV_CODEC_ID_QDM2) {
908 mov_write_extradata_tag(pb, track);
909 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
910 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
911 mov_write_ms_tag(s, pb, track);
914 avio_wb32(pb, 8); /* size */
915 avio_wb32(pb, 0); /* null tag */
917 return update_size(pb, pos);
920 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
923 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
924 int unescaped_size, seq_found = 0;
925 int level = 0, interlace = 0;
926 int packet_seq = track->vc1_info.packet_seq;
927 int packet_entry = track->vc1_info.packet_entry;
928 int slices = track->vc1_info.slices;
931 if (track->start_dts == AV_NOPTS_VALUE) {
932 /* No packets written yet, vc1_info isn't authoritative yet. */
933 /* Assume inline sequence and entry headers. */
934 packet_seq = packet_entry = 1;
935 av_log(NULL, AV_LOG_WARNING,
936 "moov atom written before any packets, unable to write correct "
937 "dvc1 atom. Set the delay_moov flag to fix this.\n");
940 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
942 return AVERROR(ENOMEM);
943 start = find_next_marker(track->vos_data, end);
944 for (next = start; next < end; start = next) {
947 next = find_next_marker(start + 4, end);
948 size = next - start - 4;
951 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
952 init_get_bits(&gb, unescaped, 8 * unescaped_size);
953 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
954 int profile = get_bits(&gb, 2);
955 if (profile != PROFILE_ADVANCED) {
957 return AVERROR(ENOSYS);
960 level = get_bits(&gb, 3);
961 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
963 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
964 skip_bits(&gb, 1); /* broadcast */
965 interlace = get_bits1(&gb);
966 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
971 return AVERROR(ENOSYS);
974 init_put_bits(&pbc, buf, 7);
975 /* VC1DecSpecStruc */
976 put_bits(&pbc, 4, 12); /* profile - advanced */
977 put_bits(&pbc, 3, level);
978 put_bits(&pbc, 1, 0); /* reserved */
979 /* VC1AdvDecSpecStruc */
980 put_bits(&pbc, 3, level);
981 put_bits(&pbc, 1, 0); /* cbr */
982 put_bits(&pbc, 6, 0); /* reserved */
983 put_bits(&pbc, 1, !interlace); /* no interlace */
984 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
985 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
986 put_bits(&pbc, 1, !slices); /* no slice code */
987 put_bits(&pbc, 1, 0); /* no bframe */
988 put_bits(&pbc, 1, 0); /* reserved */
991 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
992 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
994 put_bits32(&pbc, 0xffffffff);
996 flush_put_bits(&pbc);
1003 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
1005 uint8_t buf[7] = { 0 };
1008 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
1011 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
1012 ffio_wfourcc(pb, "dvc1");
1013 avio_write(pb, buf, sizeof(buf));
1014 avio_write(pb, track->vos_data, track->vos_len);
1019 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
1021 avio_wb32(pb, track->vos_len + 8);
1022 ffio_wfourcc(pb, "glbl");
1023 avio_write(pb, track->vos_data, track->vos_len);
1024 return 8 + track->vos_len;
1028 * Compute flags for 'lpcm' tag.
1029 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
1031 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
1034 case AV_CODEC_ID_PCM_F32BE:
1035 case AV_CODEC_ID_PCM_F64BE:
1037 case AV_CODEC_ID_PCM_F32LE:
1038 case AV_CODEC_ID_PCM_F64LE:
1040 case AV_CODEC_ID_PCM_U8:
1042 case AV_CODEC_ID_PCM_S16BE:
1043 case AV_CODEC_ID_PCM_S24BE:
1044 case AV_CODEC_ID_PCM_S32BE:
1046 case AV_CODEC_ID_PCM_S8:
1047 case AV_CODEC_ID_PCM_S16LE:
1048 case AV_CODEC_ID_PCM_S24LE:
1049 case AV_CODEC_ID_PCM_S32LE:
1056 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
1060 if (cluster_idx >= track->entry)
1063 if (cluster_idx + 1 == track->entry)
1064 next_dts = track->track_duration + track->start_dts;
1066 next_dts = track->cluster[cluster_idx + 1].dts;
1068 next_dts -= track->cluster[cluster_idx].dts;
1070 av_assert0(next_dts >= 0);
1071 av_assert0(next_dts <= INT_MAX);
1076 static int get_samples_per_packet(MOVTrack *track)
1078 int i, first_duration;
1080 // return track->par->frame_size;
1082 /* use 1 for raw PCM */
1083 if (!track->audio_vbr)
1086 /* check to see if duration is constant for all clusters */
1089 first_duration = get_cluster_duration(track, 0);
1090 for (i = 1; i < track->entry; i++) {
1091 if (get_cluster_duration(track, i) != first_duration)
1094 return first_duration;
1097 static int mov_write_btrt_tag(AVIOContext *pb, MOVTrack *track)
1099 int64_t pos = avio_tell(pb);
1100 struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track);
1101 if (!bit_rates.max_bit_rate && !bit_rates.avg_bit_rate &&
1102 !bit_rates.buffer_size)
1103 // no useful data to be written, skip
1106 avio_wb32(pb, 0); /* size */
1107 ffio_wfourcc(pb, "btrt");
1109 avio_wb32(pb, bit_rates.buffer_size);
1110 avio_wb32(pb, bit_rates.max_bit_rate);
1111 avio_wb32(pb, bit_rates.avg_bit_rate);
1113 return update_size(pb, pos);
1116 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1118 int64_t pos = avio_tell(pb);
1120 uint32_t tag = track->tag;
1123 if (track->mode == MODE_MOV) {
1124 if (track->timescale > UINT16_MAX || !track->par->channels) {
1125 if (mov_get_lpcm_flags(track->par->codec_id))
1126 tag = AV_RL32("lpcm");
1128 } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1129 mov_pcm_be_gt16(track->par->codec_id) ||
1130 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1131 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1132 track->par->codec_id == AV_CODEC_ID_QDM2) {
1137 avio_wb32(pb, 0); /* size */
1138 if (mov->encryption_scheme != MOV_ENC_NONE) {
1139 ffio_wfourcc(pb, "enca");
1141 avio_wl32(pb, tag); // store it byteswapped
1143 avio_wb32(pb, 0); /* Reserved */
1144 avio_wb16(pb, 0); /* Reserved */
1145 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1147 /* SoundDescription */
1148 avio_wb16(pb, version); /* Version */
1149 avio_wb16(pb, 0); /* Revision level */
1150 avio_wb32(pb, 0); /* Reserved */
1155 avio_wb16(pb, 0xfffe);
1157 avio_wb32(pb, 0x00010000);
1159 avio_wb64(pb, av_double2int(track->par->sample_rate));
1160 avio_wb32(pb, track->par->channels);
1161 avio_wb32(pb, 0x7F000000);
1162 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1163 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1164 avio_wb32(pb, track->sample_size);
1165 avio_wb32(pb, get_samples_per_packet(track));
1167 if (track->mode == MODE_MOV) {
1168 avio_wb16(pb, track->par->channels);
1169 if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1170 track->par->codec_id == AV_CODEC_ID_PCM_S8)
1171 avio_wb16(pb, 8); /* bits per sample */
1172 else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1173 avio_wb16(pb, track->par->bits_per_coded_sample);
1176 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1177 } else { /* reserved for mp4/3gp */
1178 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1179 track->par->codec_id == AV_CODEC_ID_ALAC ||
1180 track->par->codec_id == AV_CODEC_ID_OPUS) {
1181 avio_wb16(pb, track->par->channels);
1185 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1186 track->par->codec_id == AV_CODEC_ID_ALAC) {
1187 avio_wb16(pb, track->par->bits_per_raw_sample);
1194 avio_wb16(pb, 0); /* packet size (= 0) */
1195 if (track->par->codec_id == AV_CODEC_ID_OPUS)
1196 avio_wb16(pb, 48000);
1197 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1198 avio_wb32(pb, track->par->sample_rate);
1200 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1201 track->par->sample_rate : 0);
1203 if (track->par->codec_id != AV_CODEC_ID_TRUEHD)
1204 avio_wb16(pb, 0); /* Reserved */
1207 if (version == 1) { /* SoundDescription V1 extended info */
1208 if (mov_pcm_le_gt16(track->par->codec_id) ||
1209 mov_pcm_be_gt16(track->par->codec_id))
1210 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1212 avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1213 avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1214 avio_wb32(pb, track->sample_size); /* Bytes per frame */
1215 avio_wb32(pb, 2); /* Bytes per sample */
1218 if (track->mode == MODE_MOV &&
1219 (track->par->codec_id == AV_CODEC_ID_AAC ||
1220 track->par->codec_id == AV_CODEC_ID_AC3 ||
1221 track->par->codec_id == AV_CODEC_ID_EAC3 ||
1222 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1223 track->par->codec_id == AV_CODEC_ID_ALAC ||
1224 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1225 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1226 track->par->codec_id == AV_CODEC_ID_QDM2 ||
1227 (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1228 (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1229 ret = mov_write_wave_tag(s, pb, track);
1230 else if (track->tag == MKTAG('m','p','4','a'))
1231 ret = mov_write_esds_tag(pb, track);
1232 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1233 ret = mov_write_amr_tag(pb, track);
1234 else if (track->par->codec_id == AV_CODEC_ID_AC3)
1235 ret = mov_write_ac3_tag(s, pb, track);
1236 else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1237 ret = mov_write_eac3_tag(s, pb, track);
1238 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1239 ret = mov_write_extradata_tag(pb, track);
1240 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1241 ret = mov_write_wfex_tag(s, pb, track);
1242 else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1243 ret = mov_write_dfla_tag(pb, track);
1244 else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1245 ret = mov_write_dops_tag(s, pb, track);
1246 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1247 ret = mov_write_dmlp_tag(s, pb, track);
1248 else if (track->vos_len > 0)
1249 ret = mov_write_glbl_tag(pb, track);
1254 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1255 && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1259 if (mov->encryption_scheme != MOV_ENC_NONE
1260 && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1264 if (track->mode == MODE_MP4 &&
1265 ((ret = mov_write_btrt_tag(pb, track)) < 0))
1268 ret = update_size(pb, pos);
1272 static int mov_write_d263_tag(AVIOContext *pb)
1274 avio_wb32(pb, 0xf); /* size */
1275 ffio_wfourcc(pb, "d263");
1276 ffio_wfourcc(pb, "FFMP");
1277 avio_w8(pb, 0); /* decoder version */
1278 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1279 avio_w8(pb, 0xa); /* level */
1280 avio_w8(pb, 0); /* profile */
1284 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1286 int64_t pos = avio_tell(pb);
1289 ffio_wfourcc(pb, "av1C");
1290 ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1291 return update_size(pb, pos);
1294 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1296 int64_t pos = avio_tell(pb);
1299 ffio_wfourcc(pb, "avcC");
1300 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1301 return update_size(pb, pos);
1304 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1306 int64_t pos = avio_tell(pb);
1309 ffio_wfourcc(pb, "vpcC");
1310 avio_w8(pb, 1); /* version */
1311 avio_wb24(pb, 0); /* flags */
1312 ff_isom_write_vpcc(s, pb, track->par);
1313 return update_size(pb, pos);
1316 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1318 int64_t pos = avio_tell(pb);
1321 ffio_wfourcc(pb, "hvcC");
1322 if (track->tag == MKTAG('h','v','c','1'))
1323 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1325 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1326 return update_size(pb, pos);
1329 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1330 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1335 int display_width = track->par->width;
1337 if (track->vos_data && track->vos_len > 0x29) {
1338 if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1339 /* looks like a DNxHD bit stream */
1340 interlaced = (track->vos_data[5] & 2);
1341 cid = AV_RB32(track->vos_data + 0x28);
1343 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1347 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1351 avio_wb32(pb, 24); /* size */
1352 ffio_wfourcc(pb, "ACLR");
1353 ffio_wfourcc(pb, "ACLR");
1354 ffio_wfourcc(pb, "0001");
1355 if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1356 track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1357 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1358 } else { /* Full range (0-255) */
1359 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1361 avio_wb32(pb, 0); /* unknown */
1363 if (track->tag == MKTAG('A','V','d','h')) {
1365 ffio_wfourcc(pb, "ADHR");
1366 ffio_wfourcc(pb, "0001");
1368 avio_wb32(pb, 0); /* unknown */
1369 avio_wb32(pb, 1); /* unknown */
1370 avio_wb32(pb, 0); /* unknown */
1371 avio_wb32(pb, 0); /* unknown */
1375 avio_wb32(pb, 24); /* size */
1376 ffio_wfourcc(pb, "APRG");
1377 ffio_wfourcc(pb, "APRG");
1378 ffio_wfourcc(pb, "0001");
1379 avio_wb32(pb, 1); /* unknown */
1380 avio_wb32(pb, 0); /* unknown */
1382 avio_wb32(pb, 120); /* size */
1383 ffio_wfourcc(pb, "ARES");
1384 ffio_wfourcc(pb, "ARES");
1385 ffio_wfourcc(pb, "0001");
1386 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1387 if ( track->par->sample_aspect_ratio.num > 0
1388 && track->par->sample_aspect_ratio.den > 0)
1389 display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1390 avio_wb32(pb, display_width);
1391 /* values below are based on samples created with quicktime and avid codecs */
1393 avio_wb32(pb, track->par->height / 2);
1394 avio_wb32(pb, 2); /* unknown */
1395 avio_wb32(pb, 0); /* unknown */
1396 avio_wb32(pb, 4); /* unknown */
1398 avio_wb32(pb, track->par->height);
1399 avio_wb32(pb, 1); /* unknown */
1400 avio_wb32(pb, 0); /* unknown */
1401 if (track->par->height == 1080)
1402 avio_wb32(pb, 5); /* unknown */
1404 avio_wb32(pb, 6); /* unknown */
1407 for (i = 0; i < 10; i++)
1413 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1416 ffio_wfourcc(pb, "DpxE");
1417 if (track->par->extradata_size >= 12 &&
1418 !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1419 avio_wb32(pb, track->par->extradata[11]);
1426 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1430 if (track->par->width == 720) { /* SD */
1431 if (track->par->height == 480) { /* NTSC */
1432 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1433 else tag = MKTAG('d','v','c',' ');
1434 }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1435 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1436 else tag = MKTAG('d','v','p','p');
1437 } else if (track->par->height == 720) { /* HD 720 line */
1438 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1439 else tag = MKTAG('d','v','h','p');
1440 } else if (track->par->height == 1080) { /* HD 1080 line */
1441 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1442 else tag = MKTAG('d','v','h','6');
1444 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1451 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1453 AVRational rate = st->avg_frame_rate;
1455 #if FF_API_LAVF_AVCTX
1456 FF_DISABLE_DEPRECATION_WARNINGS
1457 rate = av_inv_q(st->codec->time_base);
1458 if (av_timecode_check_frame_rate(rate) < 0) {
1459 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1460 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1461 rate = st->avg_frame_rate;
1463 FF_ENABLE_DEPRECATION_WARNINGS
1469 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1471 AVRational rational_framerate = find_fps(s, st);
1473 if (rational_framerate.den != 0)
1474 rate = av_q2d(rational_framerate);
1478 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1480 int tag = track->par->codec_tag;
1481 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1482 AVStream *st = track->st;
1483 int rate = defined_frame_rate(s, st);
1486 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1488 if (track->par->format == AV_PIX_FMT_YUV420P) {
1489 if (track->par->width == 1280 && track->par->height == 720) {
1491 if (rate == 24) tag = MKTAG('x','d','v','4');
1492 else if (rate == 25) tag = MKTAG('x','d','v','5');
1493 else if (rate == 30) tag = MKTAG('x','d','v','1');
1494 else if (rate == 50) tag = MKTAG('x','d','v','a');
1495 else if (rate == 60) tag = MKTAG('x','d','v','9');
1497 } else if (track->par->width == 1440 && track->par->height == 1080) {
1499 if (rate == 24) tag = MKTAG('x','d','v','6');
1500 else if (rate == 25) tag = MKTAG('x','d','v','7');
1501 else if (rate == 30) tag = MKTAG('x','d','v','8');
1503 if (rate == 25) tag = MKTAG('x','d','v','3');
1504 else if (rate == 30) tag = MKTAG('x','d','v','2');
1506 } else if (track->par->width == 1920 && track->par->height == 1080) {
1508 if (rate == 24) tag = MKTAG('x','d','v','d');
1509 else if (rate == 25) tag = MKTAG('x','d','v','e');
1510 else if (rate == 30) tag = MKTAG('x','d','v','f');
1512 if (rate == 25) tag = MKTAG('x','d','v','c');
1513 else if (rate == 30) tag = MKTAG('x','d','v','b');
1516 } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1517 if (track->par->width == 1280 && track->par->height == 720) {
1519 if (rate == 24) tag = MKTAG('x','d','5','4');
1520 else if (rate == 25) tag = MKTAG('x','d','5','5');
1521 else if (rate == 30) tag = MKTAG('x','d','5','1');
1522 else if (rate == 50) tag = MKTAG('x','d','5','a');
1523 else if (rate == 60) tag = MKTAG('x','d','5','9');
1525 } else if (track->par->width == 1920 && track->par->height == 1080) {
1527 if (rate == 24) tag = MKTAG('x','d','5','d');
1528 else if (rate == 25) tag = MKTAG('x','d','5','e');
1529 else if (rate == 30) tag = MKTAG('x','d','5','f');
1531 if (rate == 25) tag = MKTAG('x','d','5','c');
1532 else if (rate == 30) tag = MKTAG('x','d','5','b');
1540 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1542 int tag = track->par->codec_tag;
1543 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1544 AVStream *st = track->st;
1545 int rate = defined_frame_rate(s, st);
1548 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1550 if (track->par->format == AV_PIX_FMT_YUV420P10) {
1551 if (track->par->width == 960 && track->par->height == 720) {
1553 if (rate == 24) tag = MKTAG('a','i','5','p');
1554 else if (rate == 25) tag = MKTAG('a','i','5','q');
1555 else if (rate == 30) tag = MKTAG('a','i','5','p');
1556 else if (rate == 50) tag = MKTAG('a','i','5','q');
1557 else if (rate == 60) tag = MKTAG('a','i','5','p');
1559 } else if (track->par->width == 1440 && track->par->height == 1080) {
1561 if (rate == 24) tag = MKTAG('a','i','5','3');
1562 else if (rate == 25) tag = MKTAG('a','i','5','2');
1563 else if (rate == 30) tag = MKTAG('a','i','5','3');
1565 if (rate == 50) tag = MKTAG('a','i','5','5');
1566 else if (rate == 60) tag = MKTAG('a','i','5','6');
1569 } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1570 if (track->par->width == 1280 && track->par->height == 720) {
1572 if (rate == 24) tag = MKTAG('a','i','1','p');
1573 else if (rate == 25) tag = MKTAG('a','i','1','q');
1574 else if (rate == 30) tag = MKTAG('a','i','1','p');
1575 else if (rate == 50) tag = MKTAG('a','i','1','q');
1576 else if (rate == 60) tag = MKTAG('a','i','1','p');
1578 } else if (track->par->width == 1920 && track->par->height == 1080) {
1580 if (rate == 24) tag = MKTAG('a','i','1','3');
1581 else if (rate == 25) tag = MKTAG('a','i','1','2');
1582 else if (rate == 30) tag = MKTAG('a','i','1','3');
1584 if (rate == 25) tag = MKTAG('a','i','1','5');
1585 else if (rate == 50) tag = MKTAG('a','i','1','5');
1586 else if (rate == 60) tag = MKTAG('a','i','1','6');
1588 } else if ( track->par->width == 4096 && track->par->height == 2160
1589 || track->par->width == 3840 && track->par->height == 2160
1590 || track->par->width == 2048 && track->par->height == 1080) {
1591 tag = MKTAG('a','i','v','x');
1598 static const struct {
1599 enum AVPixelFormat pix_fmt;
1602 } mov_pix_fmt_tags[] = {
1603 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1604 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1605 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1606 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1607 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1608 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1609 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1610 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1611 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1612 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1613 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1614 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1615 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1616 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1617 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1620 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1622 int tag = MKTAG('A','V','d','n');
1623 if (track->par->profile != FF_PROFILE_UNKNOWN &&
1624 track->par->profile != FF_PROFILE_DNXHD)
1625 tag = MKTAG('A','V','d','h');
1629 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1631 int tag = track->par->codec_tag;
1633 enum AVPixelFormat pix_fmt;
1635 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1636 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1637 tag = mov_pix_fmt_tags[i].tag;
1638 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1639 if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1644 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1645 track->par->bits_per_coded_sample);
1646 if (tag == MKTAG('r','a','w',' ') &&
1647 track->par->format != pix_fmt &&
1648 track->par->format != AV_PIX_FMT_GRAY8 &&
1649 track->par->format != AV_PIX_FMT_NONE)
1650 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1651 av_get_pix_fmt_name(track->par->format));
1655 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1657 unsigned int tag = track->par->codec_tag;
1659 // "rtp " is used to distinguish internally created RTP-hint tracks
1660 // (with rtp_ctx) from other tracks.
1661 if (tag == MKTAG('r','t','p',' '))
1663 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1664 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1665 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1666 track->par->codec_id == AV_CODEC_ID_H263 ||
1667 track->par->codec_id == AV_CODEC_ID_H264 ||
1668 track->par->codec_id == AV_CODEC_ID_DNXHD ||
1669 track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1670 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1671 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1672 tag = mov_get_dv_codec_tag(s, track);
1673 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1674 tag = mov_get_rawvideo_codec_tag(s, track);
1675 else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1676 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1677 else if (track->par->codec_id == AV_CODEC_ID_H264)
1678 tag = mov_get_h264_codec_tag(s, track);
1679 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1680 tag = mov_get_dnxhd_codec_tag(s, track);
1681 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1682 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1683 if (!tag) { // if no mac fcc found, try with Microsoft tags
1684 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1686 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1687 "the file may be unplayable!\n");
1689 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1690 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1691 if (!tag) { // if no mac fcc found, try with Microsoft tags
1692 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1694 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1695 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1696 "the file may be unplayable!\n");
1699 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1700 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1706 static const AVCodecTag codec_cover_image_tags[] = {
1707 { AV_CODEC_ID_MJPEG, 0xD },
1708 { AV_CODEC_ID_PNG, 0xE },
1709 { AV_CODEC_ID_BMP, 0x1B },
1710 { AV_CODEC_ID_NONE, 0 },
1713 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1714 unsigned int tag, int codec_id)
1719 * Check that tag + id is in the table
1721 for (i = 0; tags && tags[i]; i++) {
1722 const AVCodecTag *codec_tags = tags[i];
1723 while (codec_tags->id != AV_CODEC_ID_NONE) {
1724 if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1725 codec_tags->id == codec_id)
1726 return codec_tags->tag;
1733 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1735 if (is_cover_image(track->st))
1736 return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1738 if (track->mode == MODE_IPOD)
1739 if (!av_match_ext(s->url, "m4a") &&
1740 !av_match_ext(s->url, "m4v") &&
1741 !av_match_ext(s->url, "m4b"))
1742 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1743 "Quicktime/Ipod might not play the file\n");
1745 if (track->mode == MODE_MOV) {
1746 return mov_get_codec_tag(s, track);
1748 return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1749 track->par->codec_id);
1752 /** Write uuid atom.
1753 * Needed to make file play in iPods running newest firmware
1754 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1756 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1759 ffio_wfourcc(pb, "uuid");
1760 avio_wb32(pb, 0x6b6840f2);
1761 avio_wb32(pb, 0x5f244fc5);
1762 avio_wb32(pb, 0xba39a51b);
1763 avio_wb32(pb, 0xcf0323f3);
1768 static const uint16_t fiel_data[] = {
1769 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1772 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1774 unsigned mov_field_order = 0;
1775 if (field_order < FF_ARRAY_ELEMS(fiel_data))
1776 mov_field_order = fiel_data[field_order];
1780 ffio_wfourcc(pb, "fiel");
1781 avio_wb16(pb, mov_field_order);
1785 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1787 int ret = AVERROR_BUG;
1788 int64_t pos = avio_tell(pb);
1789 avio_wb32(pb, 0); /* size */
1790 avio_wl32(pb, track->tag); // store it byteswapped
1791 avio_wb32(pb, 0); /* Reserved */
1792 avio_wb16(pb, 0); /* Reserved */
1793 avio_wb16(pb, 1); /* Data-reference index */
1795 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1796 mov_write_esds_tag(pb, track);
1797 else if (track->par->extradata_size)
1798 avio_write(pb, track->par->extradata, track->par->extradata_size);
1800 if (track->mode == MODE_MP4 &&
1801 ((ret = mov_write_btrt_tag(pb, track)) < 0))
1804 return update_size(pb, pos);
1807 static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d)
1811 if (stereo_3d->flags != 0) {
1812 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1816 switch (stereo_3d->type) {
1817 case AV_STEREO3D_2D:
1820 case AV_STEREO3D_TOPBOTTOM:
1823 case AV_STEREO3D_SIDEBYSIDE:
1827 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1830 avio_wb32(pb, 13); /* size */
1831 ffio_wfourcc(pb, "st3d");
1832 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1833 avio_w8(pb, stereo_mode);
1837 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1839 int64_t sv3d_pos, svhd_pos, proj_pos;
1840 const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1842 if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1843 spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1844 spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1845 av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1849 sv3d_pos = avio_tell(pb);
1850 avio_wb32(pb, 0); /* size */
1851 ffio_wfourcc(pb, "sv3d");
1853 svhd_pos = avio_tell(pb);
1854 avio_wb32(pb, 0); /* size */
1855 ffio_wfourcc(pb, "svhd");
1856 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1857 avio_put_str(pb, metadata_source);
1858 update_size(pb, svhd_pos);
1860 proj_pos = avio_tell(pb);
1861 avio_wb32(pb, 0); /* size */
1862 ffio_wfourcc(pb, "proj");
1864 avio_wb32(pb, 24); /* size */
1865 ffio_wfourcc(pb, "prhd");
1866 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1867 avio_wb32(pb, spherical_mapping->yaw);
1868 avio_wb32(pb, spherical_mapping->pitch);
1869 avio_wb32(pb, spherical_mapping->roll);
1871 switch (spherical_mapping->projection) {
1872 case AV_SPHERICAL_EQUIRECTANGULAR:
1873 case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1874 avio_wb32(pb, 28); /* size */
1875 ffio_wfourcc(pb, "equi");
1876 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1877 avio_wb32(pb, spherical_mapping->bound_top);
1878 avio_wb32(pb, spherical_mapping->bound_bottom);
1879 avio_wb32(pb, spherical_mapping->bound_left);
1880 avio_wb32(pb, spherical_mapping->bound_right);
1882 case AV_SPHERICAL_CUBEMAP:
1883 avio_wb32(pb, 20); /* size */
1884 ffio_wfourcc(pb, "cbmp");
1885 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1886 avio_wb32(pb, 0); /* layout */
1887 avio_wb32(pb, spherical_mapping->padding); /* padding */
1890 update_size(pb, proj_pos);
1892 return update_size(pb, sv3d_pos);
1895 static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDecoderConfigurationRecord *dovi)
1897 avio_wb32(pb, 32); /* size = 8 + 24 */
1898 if (dovi->dv_profile > 7)
1899 ffio_wfourcc(pb, "dvvC");
1901 ffio_wfourcc(pb, "dvcC");
1902 avio_w8(pb, dovi->dv_version_major);
1903 avio_w8(pb, dovi->dv_version_minor);
1904 avio_wb16(pb, (dovi->dv_profile << 9) | (dovi->dv_level << 3) |
1905 (dovi->rpu_present_flag << 2) | (dovi->el_present_flag << 1) |
1906 dovi->bl_present_flag);
1907 avio_wb32(pb, (dovi->dv_bl_signal_compatibility_id << 28) | 0);
1909 avio_wb32(pb, 0); /* reserved */
1910 avio_wb32(pb, 0); /* reserved */
1911 avio_wb32(pb, 0); /* reserved */
1912 avio_wb32(pb, 0); /* reserved */
1913 av_log(s, AV_LOG_DEBUG, "DOVI in %s box, version: %d.%d, profile: %d, level: %d, "
1914 "rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
1915 dovi->dv_profile > 7 ? "dvvC" : "dvcC",
1916 dovi->dv_version_major, dovi->dv_version_minor,
1917 dovi->dv_profile, dovi->dv_level,
1918 dovi->rpu_present_flag,
1919 dovi->el_present_flag,
1920 dovi->bl_present_flag,
1921 dovi->dv_bl_signal_compatibility_id);
1922 return 32; /* 8 + 24 */
1925 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1928 ffio_wfourcc(pb, "clap");
1929 avio_wb32(pb, track->par->width); /* apertureWidth_N */
1930 avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1931 avio_wb32(pb, track->height); /* apertureHeight_N */
1932 avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1933 avio_wb32(pb, 0); /* horizOff_N (= 0) */
1934 avio_wb32(pb, 1); /* horizOff_D (= 1) */
1935 avio_wb32(pb, 0); /* vertOff_N (= 0) */
1936 avio_wb32(pb, 1); /* vertOff_D (= 1) */
1940 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1943 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1944 track->par->sample_aspect_ratio.den, INT_MAX);
1947 ffio_wfourcc(pb, "pasp");
1948 avio_wb32(pb, sar.num);
1949 avio_wb32(pb, sar.den);
1953 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1957 gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1959 av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1962 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1963 av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1965 av_assert0(track->mode == MODE_MOV);
1967 ffio_wfourcc(pb, "gama");
1968 avio_wb32(pb, gama);
1971 av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1976 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
1978 int64_t pos = avio_tell(pb);
1980 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1981 // Ref (MP4): ISO/IEC 14496-12:2012
1983 const uint8_t *icc_profile;
1984 buffer_size_t icc_profile_size;
1987 icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size);
1990 avio_wb32(pb, 12 + icc_profile_size);
1991 ffio_wfourcc(pb, "colr");
1992 ffio_wfourcc(pb, "prof");
1993 avio_write(pb, icc_profile, icc_profile_size);
1994 return 12 + icc_profile_size;
1997 av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
2001 /* We should only ever be called by MOV or MP4. */
2002 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
2004 avio_wb32(pb, 0); /* size */
2005 ffio_wfourcc(pb, "colr");
2006 if (track->mode == MODE_MP4)
2007 ffio_wfourcc(pb, "nclx");
2009 ffio_wfourcc(pb, "nclc");
2010 // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED.
2011 // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See
2012 // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf
2013 avio_wb16(pb, track->par->color_primaries);
2014 avio_wb16(pb, track->par->color_trc);
2015 avio_wb16(pb, track->par->color_space);
2016 if (track->mode == MODE_MP4) {
2017 int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
2018 avio_w8(pb, full_range << 7);
2021 return update_size(pb, pos);
2024 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
2026 const uint8_t *side_data;
2027 const AVContentLightMetadata *content_light_metadata;
2029 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL);
2033 content_light_metadata = (const AVContentLightMetadata*)side_data;
2035 avio_wb32(pb, 12); // size
2036 ffio_wfourcc(pb, "clli");
2037 avio_wb16(pb, content_light_metadata->MaxCLL);
2038 avio_wb16(pb, content_light_metadata->MaxFALL);
2042 static inline int64_t rescale_mdcv(AVRational q, int b)
2044 return av_rescale(q.num, b, q.den);
2047 static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
2049 const int chroma_den = 50000;
2050 const int luma_den = 10000;
2051 const uint8_t *side_data;
2052 const AVMasteringDisplayMetadata *metadata;
2054 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
2055 metadata = (const AVMasteringDisplayMetadata*)side_data;
2056 if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
2060 avio_wb32(pb, 32); // size
2061 ffio_wfourcc(pb, "mdcv");
2062 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][0], chroma_den));
2063 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][1], chroma_den));
2064 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][0], chroma_den));
2065 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][1], chroma_den));
2066 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][0], chroma_den));
2067 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][1], chroma_den));
2068 avio_wb16(pb, rescale_mdcv(metadata->white_point[0], chroma_den));
2069 avio_wb16(pb, rescale_mdcv(metadata->white_point[1], chroma_den));
2070 avio_wb32(pb, rescale_mdcv(metadata->max_luminance, luma_den));
2071 avio_wb32(pb, rescale_mdcv(metadata->min_luminance, luma_den));
2075 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
2077 AVDictionaryEntry *encoder;
2078 int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
2079 || (track->par->width == 1440 && track->par->height == 1080)
2080 || (track->par->width == 1920 && track->par->height == 1080);
2082 if (track->mode == MODE_MOV &&
2083 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
2084 av_strlcpy(compressor_name, encoder->value, 32);
2085 } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
2086 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
2087 AVStream *st = track->st;
2088 int rate = defined_frame_rate(NULL, st);
2089 av_strlcatf(compressor_name, len, "XDCAM");
2090 if (track->par->format == AV_PIX_FMT_YUV422P) {
2091 av_strlcatf(compressor_name, len, " HD422");
2092 } else if(track->par->width == 1440) {
2093 av_strlcatf(compressor_name, len, " HD");
2095 av_strlcatf(compressor_name, len, " EX");
2097 av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
2099 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
2103 static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2105 int ret = AVERROR_BUG;
2106 int64_t pos = avio_tell(pb);
2107 char compressor_name[32] = { 0 };
2110 int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
2111 || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
2112 || track->par->codec_id == AV_CODEC_ID_V308
2113 || track->par->codec_id == AV_CODEC_ID_V408
2114 || track->par->codec_id == AV_CODEC_ID_V410
2115 || track->par->codec_id == AV_CODEC_ID_V210);
2117 avio_wb32(pb, 0); /* size */
2118 if (mov->encryption_scheme != MOV_ENC_NONE) {
2119 ffio_wfourcc(pb, "encv");
2121 avio_wl32(pb, track->tag); // store it byteswapped
2123 avio_wb32(pb, 0); /* Reserved */
2124 avio_wb16(pb, 0); /* Reserved */
2125 avio_wb16(pb, 1); /* Data-reference index */
2127 if (uncompressed_ycbcr) {
2128 avio_wb16(pb, 2); /* Codec stream version */
2130 avio_wb16(pb, 0); /* Codec stream version */
2132 avio_wb16(pb, 0); /* Codec stream revision (=0) */
2133 if (track->mode == MODE_MOV) {
2134 ffio_wfourcc(pb, "FFMP"); /* Vendor */
2135 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
2136 avio_wb32(pb, 0); /* Temporal Quality */
2137 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
2139 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
2140 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
2143 avio_wb32(pb, 0); /* Reserved */
2144 avio_wb32(pb, 0); /* Reserved */
2145 avio_wb32(pb, 0); /* Reserved */
2147 avio_wb16(pb, track->par->width); /* Video width */
2148 avio_wb16(pb, track->height); /* Video height */
2149 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
2150 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
2151 avio_wb32(pb, 0); /* Data size (= 0) */
2152 avio_wb16(pb, 1); /* Frame count (= 1) */
2154 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
2155 find_compressor(compressor_name, 32, track);
2156 avio_w8(pb, strlen(compressor_name));
2157 avio_write(pb, compressor_name, 31);
2159 if (track->mode == MODE_MOV &&
2160 (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2161 avio_wb16(pb, 0x18);
2162 else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2163 avio_wb16(pb, track->par->bits_per_coded_sample |
2164 (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2166 avio_wb16(pb, 0x18); /* Reserved */
2168 if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2169 int pal_size = 1 << track->par->bits_per_coded_sample;
2171 avio_wb16(pb, 0); /* Color table ID */
2172 avio_wb32(pb, 0); /* Color table seed */
2173 avio_wb16(pb, 0x8000); /* Color table flags */
2174 avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2175 for (i = 0; i < pal_size; i++) {
2176 uint32_t rgb = track->palette[i];
2177 uint16_t r = (rgb >> 16) & 0xff;
2178 uint16_t g = (rgb >> 8) & 0xff;
2179 uint16_t b = rgb & 0xff;
2181 avio_wb16(pb, (r << 8) | r);
2182 avio_wb16(pb, (g << 8) | g);
2183 avio_wb16(pb, (b << 8) | b);
2186 avio_wb16(pb, 0xffff); /* Reserved */
2188 if (track->tag == MKTAG('m','p','4','v'))
2189 mov_write_esds_tag(pb, track);
2190 else if (track->par->codec_id == AV_CODEC_ID_H263)
2191 mov_write_d263_tag(pb);
2192 else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2193 track->par->codec_id == AV_CODEC_ID_SVQ3) {
2194 mov_write_extradata_tag(pb, track);
2196 } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2197 mov_write_avid_tag(pb, track);
2199 } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2200 mov_write_hvcc_tag(pb, track);
2201 else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2202 mov_write_avcc_tag(pb, track);
2203 if (track->mode == MODE_IPOD)
2204 mov_write_uuid_tag_ipod(pb);
2205 } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2206 mov_write_vpcc_tag(mov->fc, pb, track);
2207 } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2208 mov_write_av1c_tag(pb, track);
2209 } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2210 mov_write_dvc1_tag(pb, track);
2211 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2212 track->par->codec_id == AV_CODEC_ID_VP6A) {
2213 /* Don't write any potential extradata here - the cropping
2214 * is signalled via the normal width/height fields. */
2215 } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2216 if (track->par->codec_tag == MKTAG('R','1','0','k'))
2217 mov_write_dpxe_tag(pb, track);
2218 } else if (track->vos_len > 0)
2219 mov_write_glbl_tag(pb, track);
2221 if (track->par->codec_id != AV_CODEC_ID_H264 &&
2222 track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2223 track->par->codec_id != AV_CODEC_ID_DNXHD) {
2224 int field_order = track->par->field_order;
2226 #if FF_API_LAVF_AVCTX
2227 FF_DISABLE_DEPRECATION_WARNINGS
2228 if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
2229 field_order = track->st->codec->field_order;
2230 FF_ENABLE_DEPRECATION_WARNINGS
2233 if (field_order != AV_FIELD_UNKNOWN)
2234 mov_write_fiel_tag(pb, track, field_order);
2237 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2238 if (track->mode == MODE_MOV)
2239 mov_write_gama_tag(s, pb, track, mov->gamma);
2241 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2243 if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2244 int has_color_info = track->par->color_primaries != AVCOL_PRI_UNSPECIFIED &&
2245 track->par->color_trc != AVCOL_TRC_UNSPECIFIED &&
2246 track->par->color_space != AVCOL_SPC_UNSPECIFIED;
2247 if (has_color_info || mov->flags & FF_MOV_FLAG_WRITE_COLR ||
2248 av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, NULL)) {
2249 int prefer_icc = mov->flags & FF_MOV_FLAG_PREFER_ICC || !has_color_info;
2250 mov_write_colr_tag(pb, track, prefer_icc);
2251 } else if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2252 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2255 if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2256 mov_write_clli_tag(pb, track);
2257 mov_write_mdcv_tag(pb, track);
2260 if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2261 AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
2262 AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
2263 AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)
2264 av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL);
2267 mov_write_st3d_tag(s, pb, stereo_3d);
2268 if (spherical_mapping)
2269 mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2271 mov_write_dvcc_dvvc_tag(s, pb, dovi);
2274 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2275 mov_write_pasp_tag(pb, track);
2278 if (uncompressed_ycbcr){
2279 mov_write_clap_tag(pb, track);
2282 if (mov->encryption_scheme != MOV_ENC_NONE) {
2283 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2286 if (track->mode == MODE_MP4 &&
2287 ((ret = mov_write_btrt_tag(pb, track)) < 0))
2290 /* extra padding for avid stsd */
2291 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2295 return update_size(pb, pos);
2298 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2300 int64_t pos = avio_tell(pb);
2301 avio_wb32(pb, 0); /* size */
2302 ffio_wfourcc(pb, "rtp ");
2303 avio_wb32(pb, 0); /* Reserved */
2304 avio_wb16(pb, 0); /* Reserved */
2305 avio_wb16(pb, 1); /* Data-reference index */
2307 avio_wb16(pb, 1); /* Hint track version */
2308 avio_wb16(pb, 1); /* Highest compatible version */
2309 avio_wb32(pb, track->max_packet_size); /* Max packet size */
2311 avio_wb32(pb, 12); /* size */
2312 ffio_wfourcc(pb, "tims");
2313 avio_wb32(pb, track->timescale);
2315 return update_size(pb, pos);
2318 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2320 uint64_t str_size =strlen(reel_name);
2321 int64_t pos = avio_tell(pb);
2323 if (str_size >= UINT16_MAX){
2324 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2326 return AVERROR(EINVAL);
2329 avio_wb32(pb, 0); /* size */
2330 ffio_wfourcc(pb, "name"); /* Data format */
2331 avio_wb16(pb, str_size); /* string size */
2332 avio_wb16(pb, track->language); /* langcode */
2333 avio_write(pb, reel_name, str_size); /* reel name */
2334 return update_size(pb,pos);
2337 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2339 int64_t pos = avio_tell(pb);
2343 AVDictionaryEntry *t = NULL;
2345 if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2346 #if FF_API_LAVF_AVCTX
2347 FF_DISABLE_DEPRECATION_WARNINGS
2348 frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2349 nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2350 FF_ENABLE_DEPRECATION_WARNINGS
2352 av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2353 return AVERROR(EINVAL);
2356 frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2357 nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2360 if (nb_frames > 255) {
2361 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2362 return AVERROR(EINVAL);
2365 avio_wb32(pb, 0); /* size */
2366 ffio_wfourcc(pb, "tmcd"); /* Data format */
2367 avio_wb32(pb, 0); /* Reserved */
2368 avio_wb32(pb, 1); /* Data reference index */
2369 avio_wb32(pb, 0); /* Flags */
2370 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2371 avio_wb32(pb, track->timescale); /* Timescale */
2372 avio_wb32(pb, frame_duration); /* Frame duration */
2373 avio_w8(pb, nb_frames); /* Number of frames */
2374 avio_w8(pb, 0); /* Reserved */
2376 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2377 if (t && utf8len(t->value) && track->mode != MODE_MP4)
2378 mov_write_source_reference_tag(pb, track, t->value);
2380 avio_wb16(pb, 0); /* zero size */
2383 avio_wb32(pb, 0); /* size */
2384 ffio_wfourcc(pb, "tmcd"); /* Data format */
2385 avio_wb32(pb, 0); /* Reserved */
2386 avio_wb32(pb, 1); /* Data reference index */
2387 if (track->par->extradata_size)
2388 avio_write(pb, track->par->extradata, track->par->extradata_size);
2390 return update_size(pb, pos);
2393 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2395 int64_t pos = avio_tell(pb);
2396 avio_wb32(pb, 0); /* size */
2397 ffio_wfourcc(pb, "gpmd");
2398 avio_wb32(pb, 0); /* Reserved */
2399 avio_wb16(pb, 0); /* Reserved */
2400 avio_wb16(pb, 1); /* Data-reference index */
2401 avio_wb32(pb, 0); /* Reserved */
2402 return update_size(pb, pos);
2405 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2407 int64_t pos = avio_tell(pb);
2409 avio_wb32(pb, 0); /* size */
2410 ffio_wfourcc(pb, "stsd");
2411 avio_wb32(pb, 0); /* version & flags */
2412 avio_wb32(pb, 1); /* entry count */
2413 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2414 ret = mov_write_video_tag(s, pb, mov, track);
2415 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2416 ret = mov_write_audio_tag(s, pb, mov, track);
2417 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2418 ret = mov_write_subtitle_tag(pb, track);
2419 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2420 ret = mov_write_rtp_tag(pb, track);
2421 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2422 ret = mov_write_tmcd_tag(pb, track);
2423 else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2424 ret = mov_write_gpmd_tag(pb, track);
2429 return update_size(pb, pos);
2432 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2434 MOVMuxContext *mov = s->priv_data;
2435 MOVStts *ctts_entries;
2436 uint32_t entries = 0;
2440 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2442 return AVERROR(ENOMEM);
2443 ctts_entries[0].count = 1;
2444 ctts_entries[0].duration = track->cluster[0].cts;
2445 for (i = 1; i < track->entry; i++) {
2446 if (track->cluster[i].cts == ctts_entries[entries].duration) {
2447 ctts_entries[entries].count++; /* compress */
2450 ctts_entries[entries].duration = track->cluster[i].cts;
2451 ctts_entries[entries].count = 1;
2454 entries++; /* last one */
2455 atom_size = 16 + (entries * 8);
2456 avio_wb32(pb, atom_size); /* size */
2457 ffio_wfourcc(pb, "ctts");
2458 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2459 avio_w8(pb, 1); /* version */
2461 avio_w8(pb, 0); /* version */
2462 avio_wb24(pb, 0); /* flags */
2463 avio_wb32(pb, entries); /* entry count */
2464 for (i = 0; i < entries; i++) {
2465 avio_wb32(pb, ctts_entries[i].count);
2466 avio_wb32(pb, ctts_entries[i].duration);
2468 av_free(ctts_entries);
2472 /* Time to sample atom */
2473 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2475 MOVStts *stts_entries = NULL;
2476 uint32_t entries = -1;
2480 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2481 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2483 return AVERROR(ENOMEM);
2484 stts_entries[0].count = track->sample_count;
2485 stts_entries[0].duration = 1;
2489 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2491 return AVERROR(ENOMEM);
2493 for (i = 0; i < track->entry; i++) {
2494 int duration = get_cluster_duration(track, i);
2495 if (i && duration == stts_entries[entries].duration) {
2496 stts_entries[entries].count++; /* compress */
2499 stts_entries[entries].duration = duration;
2500 stts_entries[entries].count = 1;
2503 entries++; /* last one */
2505 atom_size = 16 + (entries * 8);
2506 avio_wb32(pb, atom_size); /* size */
2507 ffio_wfourcc(pb, "stts");
2508 avio_wb32(pb, 0); /* version & flags */
2509 avio_wb32(pb, entries); /* entry count */
2510 for (i = 0; i < entries; i++) {
2511 avio_wb32(pb, stts_entries[i].count);
2512 avio_wb32(pb, stts_entries[i].duration);
2514 av_free(stts_entries);
2518 static int mov_write_dref_tag(AVIOContext *pb)
2520 avio_wb32(pb, 28); /* size */
2521 ffio_wfourcc(pb, "dref");
2522 avio_wb32(pb, 0); /* version & flags */
2523 avio_wb32(pb, 1); /* entry count */
2525 avio_wb32(pb, 0xc); /* size */
2526 //FIXME add the alis and rsrc atom
2527 ffio_wfourcc(pb, "url ");
2528 avio_wb32(pb, 1); /* version & flags */
2533 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2537 int16_t roll_distance;
2538 int group_description_index;
2541 struct sgpd_entry *sgpd_entries = NULL;
2546 const int OPUS_SEEK_PREROLL_MS = 80;
2547 int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2548 (AVRational){1, 1000},
2549 (AVRational){1, 48000});
2554 sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2556 return AVERROR(ENOMEM);
2558 av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2560 if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2561 for (i = 0; i < track->entry; i++) {
2562 int roll_samples_remaining = roll_samples;
2564 for (j = i - 1; j >= 0; j--) {
2565 roll_samples_remaining -= get_cluster_duration(track, j);
2567 if (roll_samples_remaining <= 0)
2570 /* We don't have enough preceeding samples to compute a valid
2571 roll_distance here, so this sample can't be independently
2573 if (roll_samples_remaining > 0)
2575 /* Verify distance is a maximum of 32 (2.5ms) packets. */
2577 return AVERROR_INVALIDDATA;
2578 if (i && distance == sgpd_entries[entries].roll_distance) {
2579 sgpd_entries[entries].count++;
2582 sgpd_entries[entries].count = 1;
2583 sgpd_entries[entries].roll_distance = distance;
2584 sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2589 sgpd_entries[entries].count = track->sample_count;
2590 sgpd_entries[entries].roll_distance = 1;
2591 sgpd_entries[entries].group_description_index = ++group;
2596 av_free(sgpd_entries);
2600 /* Write sgpd tag */
2601 avio_wb32(pb, 24 + (group * 2)); /* size */
2602 ffio_wfourcc(pb, "sgpd");
2603 avio_wb32(pb, 1 << 24); /* fullbox */
2604 ffio_wfourcc(pb, "roll");
2605 avio_wb32(pb, 2); /* default_length */
2606 avio_wb32(pb, group); /* entry_count */
2607 for (i = 0; i < entries; i++) {
2608 if (sgpd_entries[i].group_description_index) {
2609 avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2613 /* Write sbgp tag */
2614 avio_wb32(pb, 20 + (entries * 8)); /* size */
2615 ffio_wfourcc(pb, "sbgp");
2616 avio_wb32(pb, 0); /* fullbox */
2617 ffio_wfourcc(pb, "roll");
2618 avio_wb32(pb, entries); /* entry_count */
2619 for (i = 0; i < entries; i++) {
2620 avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2621 avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2624 av_free(sgpd_entries);
2628 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2630 int64_t pos = avio_tell(pb);
2633 avio_wb32(pb, 0); /* size */
2634 ffio_wfourcc(pb, "stbl");
2635 if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2637 mov_write_stts_tag(pb, track);
2638 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2639 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
2640 track->par->codec_id == AV_CODEC_ID_MPEGH_3D_AUDIO ||
2641 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2642 track->has_keyframes && track->has_keyframes < track->entry)
2643 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2644 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2645 mov_write_sdtp_tag(pb, track);
2646 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2647 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2648 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2649 track->flags & MOV_TRACK_CTTS && track->entry) {
2651 if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2654 mov_write_stsc_tag(pb, track);
2655 mov_write_stsz_tag(pb, track);
2656 mov_write_stco_tag(pb, track);
2657 if (track->cenc.aes_ctr) {
2658 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2660 if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2661 mov_preroll_write_stbl_atoms(pb, track);
2663 return update_size(pb, pos);
2666 static int mov_write_dinf_tag(AVIOContext *pb)
2668 int64_t pos = avio_tell(pb);
2669 avio_wb32(pb, 0); /* size */
2670 ffio_wfourcc(pb, "dinf");
2671 mov_write_dref_tag(pb);
2672 return update_size(pb, pos);
2675 static int mov_write_nmhd_tag(AVIOContext *pb)
2678 ffio_wfourcc(pb, "nmhd");
2683 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2685 int64_t pos = avio_tell(pb);
2686 const char *font = "Lucida Grande";
2687 avio_wb32(pb, 0); /* size */
2688 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2689 avio_wb32(pb, 0); /* version & flags */
2690 avio_wb16(pb, 0); /* text font */
2691 avio_wb16(pb, 0); /* text face */
2692 avio_wb16(pb, 12); /* text size */
2693 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2694 avio_wb16(pb, 0x0000); /* text color (red) */
2695 avio_wb16(pb, 0x0000); /* text color (green) */
2696 avio_wb16(pb, 0x0000); /* text color (blue) */
2697 avio_wb16(pb, 0xffff); /* background color (red) */
2698 avio_wb16(pb, 0xffff); /* background color (green) */
2699 avio_wb16(pb, 0xffff); /* background color (blue) */
2700 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2701 avio_write(pb, font, strlen(font)); /* font name */
2702 return update_size(pb, pos);
2705 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2707 int64_t pos = avio_tell(pb);
2708 avio_wb32(pb, 0); /* size */
2709 ffio_wfourcc(pb, "gmhd");
2710 avio_wb32(pb, 0x18); /* gmin size */
2711 ffio_wfourcc(pb, "gmin");/* generic media info */
2712 avio_wb32(pb, 0); /* version & flags */
2713 avio_wb16(pb, 0x40); /* graphics mode = */
2714 avio_wb16(pb, 0x8000); /* opColor (r?) */
2715 avio_wb16(pb, 0x8000); /* opColor (g?) */
2716 avio_wb16(pb, 0x8000); /* opColor (b?) */
2717 avio_wb16(pb, 0); /* balance */
2718 avio_wb16(pb, 0); /* reserved */
2721 * This special text atom is required for
2722 * Apple Quicktime chapters. The contents
2723 * don't appear to be documented, so the
2724 * bytes are copied verbatim.
2726 if (track->tag != MKTAG('c','6','0','8')) {
2727 avio_wb32(pb, 0x2C); /* size */
2728 ffio_wfourcc(pb, "text");
2729 avio_wb16(pb, 0x01);
2730 avio_wb32(pb, 0x00);
2731 avio_wb32(pb, 0x00);
2732 avio_wb32(pb, 0x00);
2733 avio_wb32(pb, 0x01);
2734 avio_wb32(pb, 0x00);
2735 avio_wb32(pb, 0x00);
2736 avio_wb32(pb, 0x00);
2737 avio_wb32(pb, 0x00004000);
2738 avio_wb16(pb, 0x0000);
2741 if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2742 int64_t tmcd_pos = avio_tell(pb);
2743 avio_wb32(pb, 0); /* size */
2744 ffio_wfourcc(pb, "tmcd");
2745 mov_write_tcmi_tag(pb, track);
2746 update_size(pb, tmcd_pos);
2747 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2748 int64_t gpmd_pos = avio_tell(pb);
2749 avio_wb32(pb, 0); /* size */
2750 ffio_wfourcc(pb, "gpmd");
2751 avio_wb32(pb, 0); /* version */
2752 update_size(pb, gpmd_pos);
2754 return update_size(pb, pos);
2757 static int mov_write_smhd_tag(AVIOContext *pb)
2759 avio_wb32(pb, 16); /* size */
2760 ffio_wfourcc(pb, "smhd");
2761 avio_wb32(pb, 0); /* version & flags */
2762 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2763 avio_wb16(pb, 0); /* reserved */
2767 static int mov_write_vmhd_tag(AVIOContext *pb)
2769 avio_wb32(pb, 0x14); /* size (always 0x14) */
2770 ffio_wfourcc(pb, "vmhd");
2771 avio_wb32(pb, 0x01); /* version & flags */
2772 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2776 static int is_clcp_track(MOVTrack *track)
2778 return track->tag == MKTAG('c','7','0','8') ||
2779 track->tag == MKTAG('c','6','0','8');
2782 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2784 MOVMuxContext *mov = s->priv_data;
2785 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2786 int64_t pos = avio_tell(pb);
2790 descr = "DataHandler";
2793 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2794 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2796 descr = "VideoHandler";
2797 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2799 descr = "SoundHandler";
2800 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2801 if (is_clcp_track(track)) {
2803 descr = "ClosedCaptionHandler";
2805 if (track->tag == MKTAG('t','x','3','g')) {
2807 } else if (track->tag == MKTAG('m','p','4','s')) {
2812 descr = "SubtitleHandler";
2814 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2816 descr = "HintHandler";
2817 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2819 descr = "TimeCodeHandler";
2820 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2822 descr = "GoPro MET"; // GoPro Metadata
2824 av_log(s, AV_LOG_WARNING,
2825 "Unknown hldr_type for %s, writing dummy values\n",
2826 av_fourcc2str(track->par->codec_tag));
2829 // hdlr.name is used by some players to identify the content title
2830 // of the track. So if an alternate handler description is
2831 // specified, use it.
2832 AVDictionaryEntry *t;
2833 t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2834 if (t && utf8len(t->value))
2839 if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2842 avio_wb32(pb, 0); /* size */
2843 ffio_wfourcc(pb, "hdlr");
2844 avio_wb32(pb, 0); /* Version & flags */
2845 avio_write(pb, hdlr, 4); /* handler */
2846 ffio_wfourcc(pb, hdlr_type); /* handler type */
2847 avio_wb32(pb, 0); /* reserved */
2848 avio_wb32(pb, 0); /* reserved */
2849 avio_wb32(pb, 0); /* reserved */
2850 if (!track || track->mode == MODE_MOV)
2851 avio_w8(pb, strlen(descr)); /* pascal string */
2852 avio_write(pb, descr, strlen(descr)); /* handler description */
2853 if (track && track->mode != MODE_MOV)
2854 avio_w8(pb, 0); /* c string */
2855 return update_size(pb, pos);
2858 static int mov_write_hmhd_tag(AVIOContext *pb)
2860 /* This atom must be present, but leaving the values at zero
2861 * seems harmless. */
2862 avio_wb32(pb, 28); /* size */
2863 ffio_wfourcc(pb, "hmhd");
2864 avio_wb32(pb, 0); /* version, flags */
2865 avio_wb16(pb, 0); /* maxPDUsize */
2866 avio_wb16(pb, 0); /* avgPDUsize */
2867 avio_wb32(pb, 0); /* maxbitrate */
2868 avio_wb32(pb, 0); /* avgbitrate */
2869 avio_wb32(pb, 0); /* reserved */
2873 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2875 int64_t pos = avio_tell(pb);
2878 avio_wb32(pb, 0); /* size */
2879 ffio_wfourcc(pb, "minf");
2880 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2881 mov_write_vmhd_tag(pb);
2882 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2883 mov_write_smhd_tag(pb);
2884 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2885 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2886 mov_write_gmhd_tag(pb, track);
2888 mov_write_nmhd_tag(pb);
2890 } else if (track->tag == MKTAG('r','t','p',' ')) {
2891 mov_write_hmhd_tag(pb);
2892 } else if (track->tag == MKTAG('t','m','c','d')) {
2893 if (track->mode != MODE_MOV)
2894 mov_write_nmhd_tag(pb);
2896 mov_write_gmhd_tag(pb, track);
2897 } else if (track->tag == MKTAG('g','p','m','d')) {
2898 mov_write_gmhd_tag(pb, track);
2900 if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2901 mov_write_hdlr_tag(s, pb, NULL);
2902 mov_write_dinf_tag(pb);
2903 if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2905 return update_size(pb, pos);
2908 static void get_pts_range(MOVMuxContext *mov, MOVTrack *track,
2909 int64_t *start, int64_t *end)
2911 if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) {
2912 // tmcd tracks gets track_duration set in mov_write_moov_tag from
2913 // another track's duration, while the end_pts may be left at zero.
2914 // Calculate the pts duration for that track instead.
2915 get_pts_range(mov, &mov->tracks[track->src_track], start, end);
2916 *start = av_rescale(*start, track->timescale,
2917 mov->tracks[track->src_track].timescale);
2918 *end = av_rescale(*end, track->timescale,
2919 mov->tracks[track->src_track].timescale);
2922 if (track->end_pts != AV_NOPTS_VALUE &&
2923 track->start_dts != AV_NOPTS_VALUE &&
2924 track->start_cts != AV_NOPTS_VALUE) {
2925 *start = track->start_dts + track->start_cts;
2926 *end = track->end_pts;
2930 *end = track->track_duration;
2933 static int64_t calc_samples_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2936 get_pts_range(mov, track, &start, &end);
2940 // Calculate the actual duration of the track, after edits.
2941 // If it starts with a pts < 0, that is removed by the edit list.
2942 // If it starts with a pts > 0, the edit list adds a delay before that.
2943 // Thus, with edit lists enabled, the post-edit output of the file is
2944 // starting with pts=0.
2945 static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2948 get_pts_range(mov, track, &start, &end);
2949 if (mov->use_editlist != 0)
2954 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2957 int64_t duration = calc_pts_duration(mov, track);
2958 int version = duration < INT32_MAX ? 0 : 1;
2960 if (track->mode == MODE_ISM)
2963 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2964 ffio_wfourcc(pb, "mdhd");
2965 avio_w8(pb, version);
2966 avio_wb24(pb, 0); /* flags */
2968 avio_wb64(pb, track->time);
2969 avio_wb64(pb, track->time);
2971 avio_wb32(pb, track->time); /* creation time */
2972 avio_wb32(pb, track->time); /* modification time */
2974 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2975 if (!track->entry && mov->mode == MODE_ISM)
2976 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2977 else if (!track->entry)
2978 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2980 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */
2981 avio_wb16(pb, track->language); /* language */
2982 avio_wb16(pb, 0); /* reserved (quality) */
2984 if (version != 0 && track->mode == MODE_MOV) {
2985 av_log(NULL, AV_LOG_ERROR,
2986 "FATAL error, file duration too long for timebase, this file will not be\n"
2987 "playable with QuickTime. Choose a different timebase with "
2988 "-video_track_timescale or a different container format\n");
2994 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2995 MOVMuxContext *mov, MOVTrack *track)
2997 int64_t pos = avio_tell(pb);
3000 avio_wb32(pb, 0); /* size */
3001 ffio_wfourcc(pb, "mdia");
3002 mov_write_mdhd_tag(pb, mov, track);
3003 mov_write_hdlr_tag(s, pb, track);
3004 if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
3006 return update_size(pb, pos);
3009 /* transformation matrix
3013 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
3014 int16_t d, int16_t tx, int16_t ty)
3016 avio_wb32(pb, a << 16); /* 16.16 format */
3017 avio_wb32(pb, b << 16); /* 16.16 format */
3018 avio_wb32(pb, 0); /* u in 2.30 format */
3019 avio_wb32(pb, c << 16); /* 16.16 format */
3020 avio_wb32(pb, d << 16); /* 16.16 format */
3021 avio_wb32(pb, 0); /* v in 2.30 format */
3022 avio_wb32(pb, tx << 16); /* 16.16 format */
3023 avio_wb32(pb, ty << 16); /* 16.16 format */
3024 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
3027 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
3028 MOVTrack *track, AVStream *st)
3030 int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
3031 MOV_TIMESCALE, track->timescale,
3033 int version = duration < INT32_MAX ? 0 : 1;
3034 int flags = MOV_TKHD_FLAG_IN_MOVIE;
3038 uint32_t *display_matrix = NULL;
3039 buffer_size_t display_matrix_size;
3043 if (mov->per_stream_grouping)
3046 group = st->codecpar->codec_type;
3048 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
3049 &display_matrix_size);
3050 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
3051 display_matrix = NULL;
3054 if (track->flags & MOV_TRACK_ENABLED)
3055 flags |= MOV_TKHD_FLAG_ENABLED;
3057 if (track->mode == MODE_ISM)
3060 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
3061 ffio_wfourcc(pb, "tkhd");
3062 avio_w8(pb, version);
3063 avio_wb24(pb, flags);
3065 avio_wb64(pb, track->time);
3066 avio_wb64(pb, track->time);
3068 avio_wb32(pb, track->time); /* creation time */
3069 avio_wb32(pb, track->time); /* modification time */
3071 avio_wb32(pb, track->track_id); /* track-id */
3072 avio_wb32(pb, 0); /* reserved */
3073 if (!track->entry && mov->mode == MODE_ISM)
3074 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
3075 else if (!track->entry)
3076 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
3078 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
3080 avio_wb32(pb, 0); /* reserved */
3081 avio_wb32(pb, 0); /* reserved */
3082 avio_wb16(pb, 0); /* layer */
3083 avio_wb16(pb, group); /* alternate group) */
3084 /* Volume, only for audio */
3085 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
3086 avio_wb16(pb, 0x0100);
3089 avio_wb16(pb, 0); /* reserved */
3091 /* Matrix structure */
3092 #if FF_API_OLD_ROTATE_API
3093 if (st && st->metadata) {
3094 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
3095 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
3098 if (display_matrix) {
3099 for (i = 0; i < 9; i++)
3100 avio_wb32(pb, display_matrix[i]);
3101 #if FF_API_OLD_ROTATE_API
3102 } else if (rotation == 90) {
3103 write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
3104 } else if (rotation == 180) {
3105 write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
3106 } else if (rotation == 270) {
3107 write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
3110 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3112 /* Track width and height, for visual only */
3113 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
3114 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
3115 int64_t track_width_1616;
3116 if (track->mode == MODE_MOV) {
3117 track_width_1616 = track->par->width * 0x10000ULL;
3119 track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
3120 track->par->width * 0x10000LL,
3121 st->sample_aspect_ratio.den);
3122 if (!track_width_1616 ||
3123 track->height != track->par->height ||
3124 track_width_1616 > UINT32_MAX)
3125 track_width_1616 = track->par->width * 0x10000ULL;
3127 if (track_width_1616 > UINT32_MAX) {
3128 av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
3129 track_width_1616 = 0;
3131 avio_wb32(pb, track_width_1616);
3132 if (track->height > 0xFFFF) {
3133 av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
3136 avio_wb32(pb, track->height * 0x10000U);
3144 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
3146 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
3147 track->par->sample_aspect_ratio.den);
3149 int64_t pos = avio_tell(pb);
3151 avio_wb32(pb, 0); /* size */
3152 ffio_wfourcc(pb, "tapt");
3155 ffio_wfourcc(pb, "clef");
3157 avio_wb32(pb, width << 16);
3158 avio_wb32(pb, track->par->height << 16);
3161 ffio_wfourcc(pb, "prof");
3163 avio_wb32(pb, width << 16);
3164 avio_wb32(pb, track->par->height << 16);
3167 ffio_wfourcc(pb, "enof");
3169 avio_wb32(pb, track->par->width << 16);
3170 avio_wb32(pb, track->par->height << 16);
3172 return update_size(pb, pos);
3175 // This box seems important for the psp playback ... without it the movie seems to hang
3176 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
3179 int64_t duration = av_rescale_rnd(calc_samples_pts_duration(mov, track),
3180 MOV_TIMESCALE, track->timescale,
3182 int version = duration < INT32_MAX ? 0 : 1;
3183 int entry_size, entry_count, size;
3184 int64_t delay, start_ct = track->start_cts;
3185 int64_t start_dts = track->start_dts;
3188 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
3190 av_log(mov->fc, AV_LOG_DEBUG,
3191 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
3192 track->cluster[0].dts, track->cluster[0].cts,
3193 start_dts, start_ct, track->track_id);
3194 start_dts = track->cluster[0].dts;
3195 start_ct = track->cluster[0].cts;
3199 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
3200 track->timescale, AV_ROUND_DOWN);
3201 version |= delay < INT32_MAX ? 0 : 1;
3203 entry_size = (version == 1) ? 20 : 12;
3204 entry_count = 1 + (delay > 0);
3205 size = 24 + entry_count * entry_size;
3207 /* write the atom data */
3208 avio_wb32(pb, size);
3209 ffio_wfourcc(pb, "edts");
3210 avio_wb32(pb, size - 8);
3211 ffio_wfourcc(pb, "elst");
3212 avio_w8(pb, version);
3213 avio_wb24(pb, 0); /* flags */
3215 avio_wb32(pb, entry_count);
3216 if (delay > 0) { /* add an empty edit to delay presentation */
3217 /* In the positive delay case, the delay includes the cts
3218 * offset, and the second edit list entry below trims out
3219 * the same amount from the actual content. This makes sure
3220 * that the offset last sample is included in the edit
3221 * list duration as well. */
3223 avio_wb64(pb, delay);
3226 avio_wb32(pb, delay);
3229 avio_wb32(pb, 0x00010000);
3231 /* Avoid accidentally ending up with start_ct = -1 which has got a
3232 * special meaning. Normally start_ct should end up positive or zero
3233 * here, but use FFMIN in case dts is a small positive integer
3234 * rounded to 0 when represented in MOV_TIMESCALE units. */
3235 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3236 start_ct = -FFMIN(start_dts, 0);
3237 /* Note, this delay is calculated from the pts of the first sample,
3238 * ensuring that we don't reduce the duration for cases with
3243 /* For fragmented files, we don't know the full length yet. Setting
3244 * duration to 0 allows us to only specify the offset, including
3245 * the rest of the content (from all future fragments) without specifying
3246 * an explicit duration. */
3247 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3252 avio_wb64(pb, duration);
3253 avio_wb64(pb, start_ct);
3255 avio_wb32(pb, duration);
3256 avio_wb32(pb, start_ct);
3258 avio_wb32(pb, 0x00010000);
3262 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3264 avio_wb32(pb, 20); // size
3265 ffio_wfourcc(pb, "tref");
3266 avio_wb32(pb, 12); // size (subatom)
3267 avio_wl32(pb, track->tref_tag);
3268 avio_wb32(pb, track->tref_id);
3272 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3273 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
3275 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3276 ffio_wfourcc(pb, "uuid");
3277 ffio_wfourcc(pb, "USMT");
3278 avio_wb32(pb, 0x21d24fce);
3279 avio_wb32(pb, 0xbb88695c);
3280 avio_wb32(pb, 0xfac9c740);
3281 avio_wb32(pb, 0x1c); // another size here!
3282 ffio_wfourcc(pb, "MTDT");
3283 avio_wb32(pb, 0x00010012);
3284 avio_wb32(pb, 0x0a);
3285 avio_wb32(pb, 0x55c40000);
3291 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3293 AVFormatContext *ctx = track->rtp_ctx;
3294 char buf[1000] = "";
3297 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3298 NULL, NULL, 0, 0, ctx);
3299 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3302 avio_wb32(pb, len + 24);
3303 ffio_wfourcc(pb, "udta");
3304 avio_wb32(pb, len + 16);
3305 ffio_wfourcc(pb, "hnti");
3306 avio_wb32(pb, len + 8);
3307 ffio_wfourcc(pb, "sdp ");
3308 avio_write(pb, buf, len);
3312 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
3313 const char *tag, const char *str)
3315 int64_t pos = avio_tell(pb);
3316 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3317 if (!t || !utf8len(t->value))
3320 avio_wb32(pb, 0); /* size */
3321 ffio_wfourcc(pb, tag); /* type */
3322 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3323 return update_size(pb, pos);
3326 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3329 AVIOContext *pb_buf;
3336 ret = avio_open_dyn_buf(&pb_buf);
3340 if (mov->mode & (MODE_MP4|MODE_MOV))
3341 mov_write_track_metadata(pb_buf, st, "name", "title");
3343 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3344 avio_wb32(pb, size + 8);
3345 ffio_wfourcc(pb, "udta");
3346 avio_write(pb, buf, size);
3348 ffio_free_dyn_buf(&pb_buf);
3353 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
3354 MOVTrack *track, AVStream *st)
3356 int64_t pos = avio_tell(pb);
3357 int entry_backup = track->entry;
3358 int chunk_backup = track->chunkCount;
3361 /* If we want to have an empty moov, but some samples already have been
3362 * buffered (delay_moov), pretend that no samples have been written yet. */
3363 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3364 track->chunkCount = track->entry = 0;
3366 avio_wb32(pb, 0); /* size */
3367 ffio_wfourcc(pb, "trak");
3368 mov_write_tkhd_tag(pb, mov, track, st);
3370 av_assert2(mov->use_editlist >= 0);
3372 if (track->start_dts != AV_NOPTS_VALUE) {
3373 if (mov->use_editlist)
3374 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3375 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3376 av_log(mov->fc, AV_LOG_WARNING,
3377 "Not writing any edit list even though one would have been required\n");
3380 if (track->tref_tag)
3381 mov_write_tref_tag(pb, track);
3383 if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3385 if (track->mode == MODE_PSP)
3386 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3387 if (track->tag == MKTAG('r','t','p',' '))
3388 mov_write_udta_sdp(pb, track);
3389 if (track->mode == MODE_MOV) {
3390 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3391 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3392 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3393 mov_write_tapt_tag(pb, track);
3396 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3397 mov_write_tapt_tag(pb, track);
3400 mov_write_track_udta_tag(pb, mov, st);
3401 track->entry = entry_backup;
3402 track->chunkCount = chunk_backup;
3403 return update_size(pb, pos);
3406 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3408 int i, has_audio = 0, has_video = 0;
3409 int64_t pos = avio_tell(pb);
3410 int audio_profile = mov->iods_audio_profile;
3411 int video_profile = mov->iods_video_profile;
3412 for (i = 0; i < mov->nb_streams; i++) {
3413 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3414 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3415 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3418 if (audio_profile < 0)
3419 audio_profile = 0xFF - has_audio;
3420 if (video_profile < 0)
3421 video_profile = 0xFF - has_video;
3422 avio_wb32(pb, 0x0); /* size */
3423 ffio_wfourcc(pb, "iods");
3424 avio_wb32(pb, 0); /* version & flags */
3425 put_descr(pb, 0x10, 7);
3426 avio_wb16(pb, 0x004f);
3429 avio_w8(pb, audio_profile);
3430 avio_w8(pb, video_profile);
3432 return update_size(pb, pos);
3435 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3437 avio_wb32(pb, 0x20); /* size */
3438 ffio_wfourcc(pb, "trex");
3439 avio_wb32(pb, 0); /* version & flags */
3440 avio_wb32(pb, track->track_id); /* track ID */
3441 avio_wb32(pb, 1); /* default sample description index */
3442 avio_wb32(pb, 0); /* default sample duration */
3443 avio_wb32(pb, 0); /* default sample size */
3444 avio_wb32(pb, 0); /* default sample flags */
3448 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3450 int64_t pos = avio_tell(pb);
3452 avio_wb32(pb, 0x0); /* size */
3453 ffio_wfourcc(pb, "mvex");
3454 for (i = 0; i < mov->nb_streams; i++)
3455 mov_write_trex_tag(pb, &mov->tracks[i]);
3456 return update_size(pb, pos);
3459 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3461 int max_track_id = 1, i;
3462 int64_t max_track_len = 0;
3465 for (i = 0; i < mov->nb_streams; i++) {
3466 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3467 int64_t max_track_len_temp = av_rescale_rnd(
3468 calc_pts_duration(mov, &mov->tracks[i]),
3470 mov->tracks[i].timescale,
3472 if (max_track_len < max_track_len_temp)
3473 max_track_len = max_track_len_temp;
3474 if (max_track_id < mov->tracks[i].track_id)
3475 max_track_id = mov->tracks[i].track_id;
3478 /* If using delay_moov, make sure the output is the same as if no
3479 * samples had been written yet. */
3480 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3485 version = max_track_len < UINT32_MAX ? 0 : 1;
3486 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3488 ffio_wfourcc(pb, "mvhd");
3489 avio_w8(pb, version);
3490 avio_wb24(pb, 0); /* flags */
3492 avio_wb64(pb, mov->time);
3493 avio_wb64(pb, mov->time);
3495 avio_wb32(pb, mov->time); /* creation time */
3496 avio_wb32(pb, mov->time); /* modification time */
3498 avio_wb32(pb, MOV_TIMESCALE);
3499 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3501 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3502 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3503 avio_wb16(pb, 0); /* reserved */
3504 avio_wb32(pb, 0); /* reserved */
3505 avio_wb32(pb, 0); /* reserved */
3507 /* Matrix structure */
3508 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3510 avio_wb32(pb, 0); /* reserved (preview time) */
3511 avio_wb32(pb, 0); /* reserved (preview duration) */
3512 avio_wb32(pb, 0); /* reserved (poster time) */
3513 avio_wb32(pb, 0); /* reserved (selection time) */
3514 avio_wb32(pb, 0); /* reserved (selection duration) */
3515 avio_wb32(pb, 0); /* reserved (current time) */
3516 avio_wb32(pb, max_track_id + 1); /* Next track id */
3520 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3523 avio_wb32(pb, 33); /* size */
3524 ffio_wfourcc(pb, "hdlr");
3527 ffio_wfourcc(pb, "mdir");
3528 ffio_wfourcc(pb, "appl");
3535 /* helper function to write a data tag with the specified string as data */
3536 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3539 int size = 16 + strlen(data);
3540 avio_wb32(pb, size); /* size */
3541 ffio_wfourcc(pb, "data");
3544 avio_write(pb, data, strlen(data));
3548 lang = ff_mov_iso639_to_lang("und", 1);
3549 avio_wb16(pb, strlen(data)); /* string length */
3550 avio_wb16(pb, lang);
3551 avio_write(pb, data, strlen(data));
3552 return strlen(data) + 4;
3556 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3557 const char *value, int lang, int long_style)
3560 if (value && value[0]) {
3561 int64_t pos = avio_tell(pb);
3562 avio_wb32(pb, 0); /* size */
3563 ffio_wfourcc(pb, name);
3564 mov_write_string_data_tag(pb, value, lang, long_style);
3565 size = update_size(pb, pos);
3570 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3571 const char *tag, int *lang)
3574 AVDictionaryEntry *t, *t2 = NULL;
3579 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3582 len = strlen(t->key);
3583 snprintf(tag2, sizeof(tag2), "%s-", tag);
3584 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3585 len2 = strlen(t2->key);
3586 if (len2 == len + 4 && !strcmp(t->value, t2->value)
3587 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3595 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3596 const char *name, const char *tag,
3600 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3603 return mov_write_string_tag(pb, name, t->value, lang, long_style);
3606 /* iTunes bpm number */
3607 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3609 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3610 int size = 0, tmpo = t ? atoi(t->value) : 0;
3613 avio_wb32(pb, size);
3614 ffio_wfourcc(pb, "tmpo");
3615 avio_wb32(pb, size-8); /* size */
3616 ffio_wfourcc(pb, "data");
3617 avio_wb32(pb, 0x15); //type specifier
3619 avio_wb16(pb, tmpo); // data
3624 /* 3GPP TS 26.244 */
3625 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3628 int64_t pos = avio_tell(pb);
3629 double latitude, longitude, altitude;
3630 int32_t latitude_fix, longitude_fix, altitude_fix;
3631 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3632 const char *ptr, *place = "";
3634 static const char *astronomical_body = "earth";
3639 longitude = strtod(ptr, &end);
3641 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3645 latitude = strtod(ptr, &end);
3647 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3651 altitude = strtod(ptr, &end);
3652 /* If no altitude was present, the default 0 should be fine */
3656 latitude_fix = (int32_t) ((1 << 16) * latitude);
3657 longitude_fix = (int32_t) ((1 << 16) * longitude);
3658 altitude_fix = (int32_t) ((1 << 16) * altitude);
3660 avio_wb32(pb, 0); /* size */
3661 ffio_wfourcc(pb, "loci"); /* type */
3662 avio_wb32(pb, 0); /* version + flags */
3663 avio_wb16(pb, lang);
3664 avio_write(pb, place, strlen(place) + 1);
3665 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3666 avio_wb32(pb, latitude_fix);
3667 avio_wb32(pb, longitude_fix);
3668 avio_wb32(pb, altitude_fix);
3669 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3670 avio_w8(pb, 0); /* additional notes, null terminated string */
3672 return update_size(pb, pos);
3675 /* iTunes track or disc number */
3676 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3677 AVFormatContext *s, int disc)
3679 AVDictionaryEntry *t = av_dict_get(s->metadata,
3680 disc ? "disc" : "track",
3682 int size = 0, track = t ? atoi(t->value) : 0;
3685 char *slash = strchr(t->value, '/');
3687 tracks = atoi(slash + 1);
3688 avio_wb32(pb, 32); /* size */
3689 ffio_wfourcc(pb, disc ? "disk" : "trkn");
3690 avio_wb32(pb, 24); /* size */
3691 ffio_wfourcc(pb, "data");
3692 avio_wb32(pb, 0); // 8 bytes empty
3694 avio_wb16(pb, 0); // empty
3695 avio_wb16(pb, track); // track / disc number
3696 avio_wb16(pb, tracks); // total track / disc number
3697 avio_wb16(pb, 0); // empty
3703 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3704 const char *name, const char *tag,
3707 AVDictionaryEntry *t = NULL;
3709 int size = 24 + len;
3711 if (len != 1 && len != 4)
3714 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3716 num = atoi(t->value);
3718 avio_wb32(pb, size);
3719 ffio_wfourcc(pb, name);
3720 avio_wb32(pb, size - 8);
3721 ffio_wfourcc(pb, "data");
3722 avio_wb32(pb, 0x15);
3724 if (len==4) avio_wb32(pb, num);
3725 else avio_w8 (pb, num);
3730 static int mov_write_covr(AVIOContext *pb, AVFormatContext *s)
3732 MOVMuxContext *mov = s->priv_data;
3736 for (i = 0; i < s->nb_streams; i++) {
3737 MOVTrack *trk = &mov->tracks[i];
3739 if (!is_cover_image(trk->st) || trk->cover_image->size <= 0)
3743 pos = avio_tell(pb);
3745 ffio_wfourcc(pb, "covr");
3747 avio_wb32(pb, 16 + trk->cover_image->size);
3748 ffio_wfourcc(pb, "data");
3749 avio_wb32(pb, trk->tag);
3751 avio_write(pb, trk->cover_image->data, trk->cover_image->size);
3754 return pos ? update_size(pb, pos) : 0;
3757 /* iTunes meta data list */
3758 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3761 int64_t pos = avio_tell(pb);
3762 avio_wb32(pb, 0); /* size */
3763 ffio_wfourcc(pb, "ilst");
3764 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3765 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3766 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3767 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3768 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3769 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3770 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3771 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3772 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3774 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3775 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3776 mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3777 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3778 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3779 mov_write_string_metadata(s, pb, "desc", "description",1);
3780 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3781 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3782 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3783 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3784 mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3785 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3786 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3787 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3788 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3789 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3790 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3791 mov_write_covr(pb, s);
3792 mov_write_trkn_tag(pb, mov, s, 0); // track number
3793 mov_write_trkn_tag(pb, mov, s, 1); // disc number
3794 mov_write_tmpo_tag(pb, s);
3795 return update_size(pb, pos);
3798 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3801 avio_wb32(pb, 33); /* size */
3802 ffio_wfourcc(pb, "hdlr");
3805 ffio_wfourcc(pb, "mdta");
3813 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3816 AVDictionaryEntry *t = NULL;
3817 int64_t pos = avio_tell(pb);
3818 int64_t curpos, entry_pos;
3821 avio_wb32(pb, 0); /* size */
3822 ffio_wfourcc(pb, "keys");
3824 entry_pos = avio_tell(pb);
3825 avio_wb32(pb, 0); /* entry count */
3827 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3828 avio_wb32(pb, strlen(t->key) + 8);
3829 ffio_wfourcc(pb, "mdta");
3830 avio_write(pb, t->key, strlen(t->key));
3833 curpos = avio_tell(pb);
3834 avio_seek(pb, entry_pos, SEEK_SET);
3835 avio_wb32(pb, count); // rewrite entry count
3836 avio_seek(pb, curpos, SEEK_SET);
3838 return update_size(pb, pos);
3841 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3844 AVDictionaryEntry *t = NULL;
3845 int64_t pos = avio_tell(pb);
3846 int count = 1; /* keys are 1-index based */
3848 avio_wb32(pb, 0); /* size */
3849 ffio_wfourcc(pb, "ilst");
3851 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3852 int64_t entry_pos = avio_tell(pb);
3853 avio_wb32(pb, 0); /* size */
3854 avio_wb32(pb, count); /* key */
3855 mov_write_string_data_tag(pb, t->value, 0, 1);
3856 update_size(pb, entry_pos);
3859 return update_size(pb, pos);
3862 /* meta data tags */
3863 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3867 int64_t pos = avio_tell(pb);
3868 avio_wb32(pb, 0); /* size */
3869 ffio_wfourcc(pb, "meta");
3871 if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3872 mov_write_mdta_hdlr_tag(pb, mov, s);
3873 mov_write_mdta_keys_tag(pb, mov, s);
3874 mov_write_mdta_ilst_tag(pb, mov, s);
3877 /* iTunes metadata tag */
3878 mov_write_itunes_hdlr_tag(pb, mov, s);
3879 mov_write_ilst_tag(pb, mov, s);
3881 size = update_size(pb, pos);
3885 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3886 const char *name, const char *key)
3889 AVDictionaryEntry *t;
3891 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3894 len = strlen(t->value);
3897 avio_wb32(pb, size);
3898 ffio_wfourcc(pb, name);
3899 avio_write(pb, t->value, len);
3905 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3909 GET_UTF8(val, *b++, return -1;)
3912 avio_wb16(pb, 0x00);
3916 static uint16_t language_code(const char *str)
3918 return (((str[0] - 0x60) & 0x1F) << 10) +
3919 (((str[1] - 0x60) & 0x1F) << 5) +
3920 (( str[2] - 0x60) & 0x1F);
3923 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3924 const char *tag, const char *str)
3926 int64_t pos = avio_tell(pb);
3927 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3928 if (!t || !utf8len(t->value))
3930 avio_wb32(pb, 0); /* size */
3931 ffio_wfourcc(pb, tag); /* type */
3932 avio_wb32(pb, 0); /* version + flags */
3933 if (!strcmp(tag, "yrrc"))
3934 avio_wb16(pb, atoi(t->value));
3936 avio_wb16(pb, language_code("eng")); /* language */
3937 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3938 if (!strcmp(tag, "albm") &&
3939 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3940 avio_w8(pb, atoi(t->value));
3942 return update_size(pb, pos);
3945 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3947 int64_t pos = avio_tell(pb);
3948 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3950 avio_wb32(pb, 0); // size
3951 ffio_wfourcc(pb, "chpl");
3952 avio_wb32(pb, 0x01000000); // version + flags
3953 avio_wb32(pb, 0); // unknown
3954 avio_w8(pb, nb_chapters);
3956 for (i = 0; i < nb_chapters; i++) {
3957 AVChapter *c = s->chapters[i];
3958 AVDictionaryEntry *t;
3959 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3961 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3962 int len = FFMIN(strlen(t->value), 255);
3964 avio_write(pb, t->value, len);
3968 return update_size(pb, pos);
3971 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3974 AVIOContext *pb_buf;
3978 ret = avio_open_dyn_buf(&pb_buf);
3982 if (mov->mode & MODE_3GP) {
3983 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3984 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3985 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3986 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3987 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3988 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3989 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3990 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3991 mov_write_loci_tag(s, pb_buf);
3992 } 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
3993 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3994 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3995 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3996 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3997 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3998 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3999 // currently ignored by mov.c
4000 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
4001 // add support for libquicktime, this atom is also actually read by mov.c
4002 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
4003 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
4004 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
4005 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
4006 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
4007 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
4008 mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
4009 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
4011 /* iTunes meta data */
4012 mov_write_meta_tag(pb_buf, mov, s);
4013 mov_write_loci_tag(s, pb_buf);
4016 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
4017 mov_write_chpl_tag(pb_buf, s);
4019 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
4020 avio_wb32(pb, size + 8);
4021 ffio_wfourcc(pb, "udta");
4022 avio_write(pb, buf, size);
4024 ffio_free_dyn_buf(&pb_buf);
4029 static void mov_write_psp_udta_tag(AVIOContext *pb,
4030 const char *str, const char *lang, int type)
4032 int len = utf8len(str) + 1;
4035 avio_wb16(pb, len * 2 + 10); /* size */
4036 avio_wb32(pb, type); /* type */
4037 avio_wb16(pb, language_code(lang)); /* language */
4038 avio_wb16(pb, 0x01); /* ? */
4039 ascii_to_wc(pb, str);
4042 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
4044 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
4048 pos = avio_tell(pb);
4049 avio_wb32(pb, 0); /* size placeholder*/
4050 ffio_wfourcc(pb, "uuid");
4051 ffio_wfourcc(pb, "USMT");
4052 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4053 avio_wb32(pb, 0xbb88695c);
4054 avio_wb32(pb, 0xfac9c740);
4056 pos2 = avio_tell(pb);
4057 avio_wb32(pb, 0); /* size placeholder*/
4058 ffio_wfourcc(pb, "MTDT");
4062 avio_wb16(pb, 0x0C); /* size */
4063 avio_wb32(pb, 0x0B); /* type */
4064 avio_wb16(pb, language_code("und")); /* language */
4065 avio_wb16(pb, 0x0); /* ? */
4066 avio_wb16(pb, 0x021C); /* data */
4068 if (!(s->flags & AVFMT_FLAG_BITEXACT))
4069 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
4070 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
4071 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
4073 update_size(pb, pos2);
4074 return update_size(pb, pos);
4080 static void build_chunks(MOVTrack *trk)
4083 MOVIentry *chunk = &trk->cluster[0];
4084 uint64_t chunkSize = chunk->size;
4085 chunk->chunkNum = 1;
4086 if (trk->chunkCount)
4088 trk->chunkCount = 1;
4089 for (i = 1; i<trk->entry; i++){
4090 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
4091 chunkSize + trk->cluster[i].size < (1<<20)){
4092 chunkSize += trk->cluster[i].size;
4093 chunk->samples_in_chunk += trk->cluster[i].entries;
4095 trk->cluster[i].chunkNum = chunk->chunkNum+1;
4096 chunk=&trk->cluster[i];
4097 chunkSize = chunk->size;
4104 * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
4105 * the stream ids are used as track ids.
4107 * This assumes mov->tracks and s->streams are in the same order and
4108 * there are no gaps in either of them (so mov->tracks[n] refers to
4111 * As an exception, there can be more entries in
4112 * s->streams than in mov->tracks, in which case new track ids are
4113 * generated (starting after the largest found stream id).
4115 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
4119 if (mov->track_ids_ok)
4122 if (mov->use_stream_ids_as_track_ids) {
4123 int next_generated_track_id = 0;
4124 for (i = 0; i < s->nb_streams; i++) {
4125 if (s->streams[i]->id > next_generated_track_id)
4126 next_generated_track_id = s->streams[i]->id;
4129 for (i = 0; i < mov->nb_streams; i++) {
4130 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4133 mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
4136 for (i = 0; i < mov->nb_streams; i++) {
4137 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4140 mov->tracks[i].track_id = i + 1;
4144 mov->track_ids_ok = 1;
4149 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
4153 int64_t pos = avio_tell(pb);
4154 avio_wb32(pb, 0); /* size placeholder*/
4155 ffio_wfourcc(pb, "moov");
4157 mov_setup_track_ids(mov, s);
4159 for (i = 0; i < mov->nb_streams; i++) {
4160 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4163 mov->tracks[i].time = mov->time;
4165 if (mov->tracks[i].entry)
4166 build_chunks(&mov->tracks[i]);
4169 if (mov->chapter_track)
4170 for (i = 0; i < s->nb_streams; i++) {
4171 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
4172 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
4174 for (i = 0; i < mov->nb_streams; i++) {
4175 MOVTrack *track = &mov->tracks[i];
4176 if (track->tag == MKTAG('r','t','p',' ')) {
4177 track->tref_tag = MKTAG('h','i','n','t');
4178 track->tref_id = mov->tracks[track->src_track].track_id;
4179 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4182 fallback = (int*)av_stream_get_side_data(track->st,
4183 AV_PKT_DATA_FALLBACK_TRACK,
4185 if (fallback != NULL && size == sizeof(int)) {
4186 if (*fallback >= 0 && *fallback < mov->nb_streams) {
4187 track->tref_tag = MKTAG('f','a','l','l');
4188 track->tref_id = mov->tracks[*fallback].track_id;
4193 for (i = 0; i < mov->nb_streams; i++) {
4194 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
4195 int src_trk = mov->tracks[i].src_track;
4196 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
4197 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
4198 //src_trk may have a different timescale than the tmcd track
4199 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
4200 mov->tracks[i].timescale,
4201 mov->tracks[src_trk].timescale);
4205 mov_write_mvhd_tag(pb, mov);
4206 if (mov->mode != MODE_MOV && !mov->iods_skip)
4207 mov_write_iods_tag(pb, mov);
4208 for (i = 0; i < mov->nb_streams; i++) {
4209 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
4210 int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
4215 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4216 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
4218 if (mov->mode == MODE_PSP)
4219 mov_write_uuidusmt_tag(pb, s);
4221 mov_write_udta_tag(pb, mov, s);
4223 return update_size(pb, pos);
4226 static void param_write_int(AVIOContext *pb, const char *name, int value)
4228 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
4231 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
4233 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4236 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4239 len = FFMIN(sizeof(buf) / 2 - 1, len);
4240 ff_data_to_hex(buf, value, len, 0);
4241 buf[2 * len] = '\0';
4242 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4245 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
4247 int64_t pos = avio_tell(pb);
4250 static const uint8_t uuid[] = {
4251 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4252 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4256 ffio_wfourcc(pb, "uuid");
4257 avio_write(pb, uuid, sizeof(uuid));
4260 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4261 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4262 avio_printf(pb, "<head>\n");
4263 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4264 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4266 avio_printf(pb, "</head>\n");
4267 avio_printf(pb, "<body>\n");
4268 avio_printf(pb, "<switch>\n");
4270 mov_setup_track_ids(mov, s);
4272 for (i = 0; i < mov->nb_streams; i++) {
4273 MOVTrack *track = &mov->tracks[i];
4274 struct mpeg4_bit_rate_values bit_rates =
4275 calculate_mpeg4_bit_rates(track);
4277 int track_id = track->track_id;
4278 char track_name_buf[32] = { 0 };
4280 AVStream *st = track->st;
4281 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4283 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) {
4285 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4291 avio_printf(pb, "<%s systemBitrate=\"%"PRIu32"\">\n", type,
4292 bit_rates.avg_bit_rate);
4293 param_write_int(pb, "systemBitrate", bit_rates.avg_bit_rate);
4294 param_write_int(pb, "trackID", track_id);
4295 param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
4297 /* Build track name piece by piece: */
4299 av_strlcat(track_name_buf, type, sizeof(track_name_buf));
4300 /* 2. track language, if available */
4302 av_strlcatf(track_name_buf, sizeof(track_name_buf),
4303 "_%s", lang->value);
4304 /* 3. special type suffix */
4305 /* "_cc" = closed captions, "_ad" = audio_description */
4306 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
4307 av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
4308 else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
4309 av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
4311 param_write_string(pb, "trackName", track_name_buf);
4313 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4314 if (track->par->codec_id == AV_CODEC_ID_H264) {
4316 int size = track->par->extradata_size;
4317 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
4319 param_write_hex(pb, "CodecPrivateData",
4320 ptr ? ptr : track->par->extradata,
4324 param_write_string(pb, "FourCC", "H264");
4325 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
4326 param_write_string(pb, "FourCC", "WVC1");
4327 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4328 track->par->extradata_size);
4330 param_write_int(pb, "MaxWidth", track->par->width);
4331 param_write_int(pb, "MaxHeight", track->par->height);
4332 param_write_int(pb, "DisplayWidth", track->par->width);
4333 param_write_int(pb, "DisplayHeight", track->par->height);
4335 if (track->par->codec_id == AV_CODEC_ID_AAC) {
4336 switch (track->par->profile)
4338 case FF_PROFILE_AAC_HE_V2:
4339 param_write_string(pb, "FourCC", "AACP");
4341 case FF_PROFILE_AAC_HE:
4342 param_write_string(pb, "FourCC", "AACH");
4345 param_write_string(pb, "FourCC", "AACL");
4347 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
4348 param_write_string(pb, "FourCC", "WMAP");
4350 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4351 track->par->extradata_size);
4352 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
4353 track->par->codec_id));
4354 param_write_int(pb, "Channels", track->par->channels);
4355 param_write_int(pb, "SamplingRate", track->par->sample_rate);
4356 param_write_int(pb, "BitsPerSample", 16);
4357 param_write_int(pb, "PacketSize", track->par->block_align ?
4358 track->par->block_align : 4);
4360 avio_printf(pb, "</%s>\n", type);
4362 avio_printf(pb, "</switch>\n");
4363 avio_printf(pb, "</body>\n");
4364 avio_printf(pb, "</smil>\n");
4366 return update_size(pb, pos);
4369 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
4372 ffio_wfourcc(pb, "mfhd");
4374 avio_wb32(pb, mov->fragments);
4378 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
4380 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
4381 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
4384 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
4385 MOVTrack *track, int64_t moof_offset)
4387 int64_t pos = avio_tell(pb);
4388 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4389 MOV_TFHD_BASE_DATA_OFFSET;
4390 if (!track->entry) {
4391 flags |= MOV_TFHD_DURATION_IS_EMPTY;
4393 flags |= MOV_TFHD_DEFAULT_FLAGS;
4395 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
4396 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4397 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
4398 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4399 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
4401 /* CMAF requires all values to be explicit in tfhd atoms */
4402 if (mov->flags & FF_MOV_FLAG_CMAF)
4403 flags |= MOV_TFHD_STSD_ID;
4405 /* Don't set a default sample size, the silverlight player refuses
4406 * to play files with that set. Don't set a default sample duration,
4407 * WMP freaks out if it is set. Don't set a base data offset, PIFF
4408 * file format says it MUST NOT be set. */
4409 if (track->mode == MODE_ISM)
4410 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4411 MOV_TFHD_BASE_DATA_OFFSET | MOV_TFHD_STSD_ID);
4413 avio_wb32(pb, 0); /* size placeholder */
4414 ffio_wfourcc(pb, "tfhd");
4415 avio_w8(pb, 0); /* version */
4416 avio_wb24(pb, flags);
4418 avio_wb32(pb, track->track_id); /* track-id */
4419 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
4420 avio_wb64(pb, moof_offset);
4421 if (flags & MOV_TFHD_STSD_ID) {
4424 if (flags & MOV_TFHD_DEFAULT_DURATION) {
4425 track->default_duration = get_cluster_duration(track, 0);
4426 avio_wb32(pb, track->default_duration);
4428 if (flags & MOV_TFHD_DEFAULT_SIZE) {
4429 track->default_size = track->entry ? track->cluster[0].size : 1;
4430 avio_wb32(pb, track->default_size);
4432 track->default_size = -1;
4434 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
4435 /* Set the default flags based on the second sample, if available.
4436 * If the first sample is different, that can be signaled via a separate field. */
4437 if (track->entry > 1)
4438 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
4440 track->default_sample_flags =
4441 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
4442 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
4443 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
4444 avio_wb32(pb, track->default_sample_flags);
4447 return update_size(pb, pos);
4450 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
4451 MOVTrack *track, int moof_size,
4454 int64_t pos = avio_tell(pb);
4455 uint32_t flags = MOV_TRUN_DATA_OFFSET;
4458 for (i = first; i < end; i++) {
4459 if (get_cluster_duration(track, i) != track->default_duration)
4460 flags |= MOV_TRUN_SAMPLE_DURATION;
4461 if (track->cluster[i].size != track->default_size)
4462 flags |= MOV_TRUN_SAMPLE_SIZE;
4463 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
4464 flags |= MOV_TRUN_SAMPLE_FLAGS;
4466 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
4467 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
4468 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
4469 if (track->flags & MOV_TRACK_CTTS)
4470 flags |= MOV_TRUN_SAMPLE_CTS;
4472 avio_wb32(pb, 0); /* size placeholder */
4473 ffio_wfourcc(pb, "trun");
4474 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4475 avio_w8(pb, 1); /* version */
4477 avio_w8(pb, 0); /* version */
4478 avio_wb24(pb, flags);
4480 avio_wb32(pb, end - first); /* sample count */
4481 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4482 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
4484 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
4486 avio_wb32(pb, moof_size + 8 + track->data_offset +
4487 track->cluster[first].pos); /* data offset */
4488 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
4489 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
4491 for (i = first; i < end; i++) {
4492 if (flags & MOV_TRUN_SAMPLE_DURATION)
4493 avio_wb32(pb, get_cluster_duration(track, i));
4494 if (flags & MOV_TRUN_SAMPLE_SIZE)
4495 avio_wb32(pb, track->cluster[i].size);
4496 if (flags & MOV_TRUN_SAMPLE_FLAGS)
4497 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
4498 if (flags & MOV_TRUN_SAMPLE_CTS)
4499 avio_wb32(pb, track->cluster[i].cts);
4502 mov->first_trun = 0;
4503 return update_size(pb, pos);
4506 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
4508 int64_t pos = avio_tell(pb);
4509 static const uint8_t uuid[] = {
4510 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
4511 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
4514 avio_wb32(pb, 0); /* size placeholder */
4515 ffio_wfourcc(pb, "uuid");
4516 avio_write(pb, uuid, sizeof(uuid));
4519 avio_wb64(pb, track->start_dts + track->frag_start +
4520 track->cluster[0].cts);
4521 avio_wb64(pb, track->end_pts -
4522 (track->cluster[0].dts + track->cluster[0].cts));
4524 return update_size(pb, pos);
4527 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
4528 MOVTrack *track, int entry)
4530 int n = track->nb_frag_info - 1 - entry, i;
4531 int size = 8 + 16 + 4 + 1 + 16*n;
4532 static const uint8_t uuid[] = {
4533 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
4534 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
4540 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
4541 avio_wb32(pb, size);
4542 ffio_wfourcc(pb, "uuid");
4543 avio_write(pb, uuid, sizeof(uuid));
4547 for (i = 0; i < n; i++) {
4548 int index = entry + 1 + i;
4549 avio_wb64(pb, track->frag_info[index].time);
4550 avio_wb64(pb, track->frag_info[index].duration);
4552 if (n < mov->ism_lookahead) {
4553 int free_size = 16 * (mov->ism_lookahead - n);
4554 avio_wb32(pb, free_size);
4555 ffio_wfourcc(pb, "free");
4556 ffio_fill(pb, 0, free_size - 8);
4562 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
4565 int64_t pos = avio_tell(pb);
4567 for (i = 0; i < mov->ism_lookahead; i++) {
4568 /* Update the tfrf tag for the last ism_lookahead fragments,
4569 * nb_frag_info - 1 is the next fragment to be written. */
4570 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
4572 avio_seek(pb, pos, SEEK_SET);
4576 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4580 for (i = 0; i < mov->nb_streams; i++) {
4581 MOVTrack *track = &mov->tracks[i];
4582 MOVFragmentInfo *info;
4583 if ((tracks >= 0 && i != tracks) || !track->entry)
4585 track->nb_frag_info++;
4586 if (track->nb_frag_info >= track->frag_info_capacity) {
4587 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
4588 if (av_reallocp_array(&track->frag_info,
4590 sizeof(*track->frag_info)))
4591 return AVERROR(ENOMEM);
4592 track->frag_info_capacity = new_capacity;
4594 info = &track->frag_info[track->nb_frag_info - 1];
4595 info->offset = avio_tell(pb);
4597 // Try to recreate the original pts for the first packet
4598 // from the fields we have stored
4599 info->time = track->start_dts + track->frag_start +
4600 track->cluster[0].cts;
4601 info->duration = track->end_pts -
4602 (track->cluster[0].dts + track->cluster[0].cts);
4603 // If the pts is less than zero, we will have trimmed
4604 // away parts of the media track using an edit list,
4605 // and the corresponding start presentation time is zero.
4606 if (info->time < 0) {
4607 info->duration += info->time;
4610 info->tfrf_offset = 0;
4611 mov_write_tfrf_tags(pb, mov, track);
4616 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
4619 for (i = 0; i < mov->nb_streams; i++) {
4620 MOVTrack *track = &mov->tracks[i];
4621 if ((tracks >= 0 && i != tracks) || !track->entry)
4623 if (track->nb_frag_info > max) {
4624 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
4625 track->nb_frag_info = max;
4630 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
4632 int64_t pos = avio_tell(pb);
4634 avio_wb32(pb, 0); /* size */
4635 ffio_wfourcc(pb, "tfdt");
4636 avio_w8(pb, 1); /* version */
4638 avio_wb64(pb, track->frag_start);
4639 return update_size(pb, pos);
4642 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
4643 MOVTrack *track, int64_t moof_offset,
4646 int64_t pos = avio_tell(pb);
4648 avio_wb32(pb, 0); /* size placeholder */
4649 ffio_wfourcc(pb, "traf");
4651 mov_write_tfhd_tag(pb, mov, track, moof_offset);
4652 if (mov->mode != MODE_ISM)
4653 mov_write_tfdt_tag(pb, track);
4654 for (i = 1; i < track->entry; i++) {
4655 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
4656 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
4660 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
4661 if (mov->mode == MODE_ISM) {
4662 mov_write_tfxd_tag(pb, track);
4664 if (mov->ism_lookahead) {
4665 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
4667 if (track->nb_frag_info > 0) {
4668 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
4669 if (!info->tfrf_offset)
4670 info->tfrf_offset = avio_tell(pb);
4672 avio_wb32(pb, 8 + size);
4673 ffio_wfourcc(pb, "free");
4674 for (i = 0; i < size; i++)
4679 return update_size(pb, pos);
4682 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
4683 int tracks, int moof_size)
4685 int64_t pos = avio_tell(pb);
4688 avio_wb32(pb, 0); /* size placeholder */
4689 ffio_wfourcc(pb, "moof");
4690 mov->first_trun = 1;
4692 mov_write_mfhd_tag(pb, mov);
4693 for (i = 0; i < mov->nb_streams; i++) {
4694 MOVTrack *track = &mov->tracks[i];
4695 if (tracks >= 0 && i != tracks)
4699 mov_write_traf_tag(pb, mov, track, pos, moof_size);
4702 return update_size(pb, pos);
4705 static int mov_write_sidx_tag(AVIOContext *pb,
4706 MOVTrack *track, int ref_size, int total_sidx_size)
4708 int64_t pos = avio_tell(pb), offset_pos, end_pos;
4709 int64_t presentation_time, duration, offset;
4710 unsigned starts_with_SAP;
4715 presentation_time = track->start_dts + track->frag_start +
4716 track->cluster[0].cts;
4717 duration = track->end_pts -
4718 (track->cluster[0].dts + track->cluster[0].cts);
4719 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
4721 // pts<0 should be cut away using edts
4722 if (presentation_time < 0) {
4723 duration += presentation_time;
4724 presentation_time = 0;
4727 entries = track->nb_frag_info;
4730 presentation_time = track->frag_info[0].time;
4733 avio_wb32(pb, 0); /* size */
4734 ffio_wfourcc(pb, "sidx");
4735 avio_w8(pb, 1); /* version */
4737 avio_wb32(pb, track->track_id); /* reference_ID */
4738 avio_wb32(pb, track->timescale); /* timescale */
4739 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
4740 offset_pos = avio_tell(pb);
4741 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
4742 avio_wb16(pb, 0); /* reserved */
4744 avio_wb16(pb, entries); /* reference_count */
4745 for (i = 0; i < entries; i++) {
4746 if (!track->entry) {
4747 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
4748 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
4750 duration = track->frag_info[i].duration;
4751 ref_size = track->frag_info[i].size;
4752 starts_with_SAP = 1;
4754 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
4755 avio_wb32(pb, duration); /* subsegment_duration */
4756 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
4759 end_pos = avio_tell(pb);
4760 offset = pos + total_sidx_size - end_pos;
4761 avio_seek(pb, offset_pos, SEEK_SET);
4762 avio_wb64(pb, offset);
4763 avio_seek(pb, end_pos, SEEK_SET);
4764 return update_size(pb, pos);
4767 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
4768 int tracks, int ref_size)
4771 AVIOContext *avio_buf;
4773 for (round = 0; round < 2; round++) {
4774 // First run one round to calculate the total size of all
4776 // This would be much simpler if we'd only write one sidx
4777 // atom, for the first track in the moof.
4779 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4784 for (i = 0; i < mov->nb_streams; i++) {
4785 MOVTrack *track = &mov->tracks[i];
4786 if (tracks >= 0 && i != tracks)
4788 // When writing a sidx for the full file, entry is 0, but
4789 // we want to include all tracks. ref_size is 0 in this case,
4790 // since we read it from frag_info instead.
4791 if (!track->entry && ref_size > 0)
4793 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
4797 total_size = ffio_close_null_buf(avio_buf);
4802 static int mov_write_prft_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
4804 int64_t pos = avio_tell(pb), pts_us, ntp_ts;
4805 MOVTrack *first_track;
4808 /* PRFT should be associated with at most one track. So, choosing only the
4812 first_track = &(mov->tracks[0]);
4814 if (!first_track->entry) {
4815 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, no entries in the track\n");
4819 if (first_track->cluster[0].pts == AV_NOPTS_VALUE) {
4820 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, first PTS is invalid\n");
4824 if (mov->write_prft == MOV_PRFT_SRC_WALLCLOCK) {
4825 if (first_track->cluster[0].prft.wallclock) {
4826 /* Round the NTP time to whole milliseconds. */
4827 ntp_ts = ff_get_formatted_ntp_time((first_track->cluster[0].prft.wallclock / 1000) * 1000 +
4829 flags = first_track->cluster[0].prft.flags;
4831 ntp_ts = ff_get_formatted_ntp_time(ff_ntp_time());
4832 } else if (mov->write_prft == MOV_PRFT_SRC_PTS) {
4833 pts_us = av_rescale_q(first_track->cluster[0].pts,
4834 first_track->st->time_base, AV_TIME_BASE_Q);
4835 ntp_ts = ff_get_formatted_ntp_time(pts_us + NTP_OFFSET_US);
4837 av_log(mov->fc, AV_LOG_WARNING, "Unsupported PRFT box configuration: %d\n",
4842 avio_wb32(pb, 0); // Size place holder
4843 ffio_wfourcc(pb, "prft"); // Type
4844 avio_w8(pb, 1); // Version
4845 avio_wb24(pb, flags); // Flags
4846 avio_wb32(pb, first_track->track_id); // reference track ID
4847 avio_wb64(pb, ntp_ts); // NTP time stamp
4848 avio_wb64(pb, first_track->cluster[0].pts); //media time
4849 return update_size(pb, pos);
4852 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4855 AVIOContext *avio_buf;
4858 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4860 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
4861 moof_size = ffio_close_null_buf(avio_buf);
4863 if (mov->flags & FF_MOV_FLAG_DASH &&
4864 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX)))
4865 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
4867 if (mov->write_prft > MOV_PRFT_NONE && mov->write_prft < MOV_PRFT_NB)
4868 mov_write_prft_tag(pb, mov, tracks);
4870 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
4871 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
4872 mov->ism_lookahead) {
4873 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
4875 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
4876 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
4877 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
4881 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
4884 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
4886 int64_t pos = avio_tell(pb);
4889 avio_wb32(pb, 0); /* size placeholder */
4890 ffio_wfourcc(pb, "tfra");
4891 avio_w8(pb, 1); /* version */
4894 avio_wb32(pb, track->track_id);
4895 avio_wb32(pb, 0); /* length of traf/trun/sample num */
4896 avio_wb32(pb, track->nb_frag_info);
4897 for (i = 0; i < track->nb_frag_info; i++) {
4898 avio_wb64(pb, track->frag_info[i].time);
4899 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
4900 avio_w8(pb, 1); /* traf number */
4901 avio_w8(pb, 1); /* trun number */
4902 avio_w8(pb, 1); /* sample number */
4905 return update_size(pb, pos);
4908 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
4910 AVIOContext *mfra_pb;
4914 ret = avio_open_dyn_buf(&mfra_pb);
4918 avio_wb32(mfra_pb, 0); /* size placeholder */
4919 ffio_wfourcc(mfra_pb, "mfra");
4920 /* An empty mfra atom is enough to indicate to the publishing point that
4921 * the stream has ended. */
4922 if (mov->flags & FF_MOV_FLAG_ISML)
4925 for (i = 0; i < mov->nb_streams; i++) {
4926 MOVTrack *track = &mov->tracks[i];
4927 if (track->nb_frag_info)
4928 mov_write_tfra_tag(mfra_pb, track);
4931 avio_wb32(mfra_pb, 16);
4932 ffio_wfourcc(mfra_pb, "mfro");
4933 avio_wb32(mfra_pb, 0); /* version + flags */
4934 avio_wb32(mfra_pb, avio_tell(mfra_pb) + 4);
4938 sz = update_size(mfra_pb, 0);
4939 ret = avio_get_dyn_buf(mfra_pb, &buf);
4940 avio_write(pb, buf, ret);
4941 ffio_free_dyn_buf(&mfra_pb);
4946 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
4948 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
4949 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
4951 mov->mdat_pos = avio_tell(pb);
4952 avio_wb32(pb, 0); /* size placeholder*/
4953 ffio_wfourcc(pb, "mdat");
4957 static void mov_write_ftyp_tag_internal(AVIOContext *pb, AVFormatContext *s,
4958 int has_h264, int has_video, int write_minor)
4960 MOVMuxContext *mov = s->priv_data;
4963 if (mov->major_brand && strlen(mov->major_brand) >= 4)
4964 ffio_wfourcc(pb, mov->major_brand);
4965 else if (mov->mode == MODE_3GP) {
4966 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
4967 minor = has_h264 ? 0x100 : 0x200;
4968 } else if (mov->mode & MODE_3G2) {
4969 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
4970 minor = has_h264 ? 0x20000 : 0x10000;
4971 } else if (mov->mode == MODE_PSP)
4972 ffio_wfourcc(pb, "MSNV");
4973 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_FRAGMENT &&
4974 mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4975 ffio_wfourcc(pb, "iso6"); // Required when using signed CTS offsets in trun boxes
4976 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4977 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
4978 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4979 ffio_wfourcc(pb, "iso4");
4980 else if (mov->mode == MODE_MP4)
4981 ffio_wfourcc(pb, "isom");
4982 else if (mov->mode == MODE_IPOD)
4983 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
4984 else if (mov->mode == MODE_ISM)
4985 ffio_wfourcc(pb, "isml");
4986 else if (mov->mode == MODE_F4V)
4987 ffio_wfourcc(pb, "f4v ");
4989 ffio_wfourcc(pb, "qt ");
4992 avio_wb32(pb, minor);
4995 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
4997 MOVMuxContext *mov = s->priv_data;
4998 int64_t pos = avio_tell(pb);
4999 int has_h264 = 0, has_av1 = 0, has_video = 0;
5002 for (i = 0; i < s->nb_streams; i++) {
5003 AVStream *st = s->streams[i];
5004 if (is_cover_image(st))
5006 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
5008 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
5010 if (st->codecpar->codec_id == AV_CODEC_ID_AV1)
5014 avio_wb32(pb, 0); /* size */
5015 ffio_wfourcc(pb, "ftyp");
5017 // Write major brand
5018 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 1);
5019 // Write the major brand as the first compatible brand as well
5020 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 0);
5022 // Write compatible brands, ensuring that we don't write the major brand as a
5023 // compatible brand a second time.
5024 if (mov->mode == MODE_ISM) {
5025 ffio_wfourcc(pb, "piff");
5026 } else if (mov->mode != MODE_MOV) {
5027 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
5028 // brand, if not already the major brand. This is compatible with users that
5029 // don't understand tfdt.
5030 if (mov->mode == MODE_MP4) {
5031 if (mov->flags & FF_MOV_FLAG_CMAF)
5032 ffio_wfourcc(pb, "cmfc");
5033 if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
5034 ffio_wfourcc(pb, "iso6");
5036 ffio_wfourcc(pb, "av01");
5038 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
5039 ffio_wfourcc(pb, "iso6");
5040 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
5041 ffio_wfourcc(pb, "iso5");
5042 else if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
5043 ffio_wfourcc(pb, "iso4");
5045 // Brands prior to iso5 can't be signaled when using default-base-is-moof
5046 if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
5047 // write isom for mp4 only if it it's not the major brand already.
5048 if (mov->mode != MODE_MP4 || mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
5049 ffio_wfourcc(pb, "isom");
5050 ffio_wfourcc(pb, "iso2");
5052 ffio_wfourcc(pb, "avc1");
5056 if (mov->mode == MODE_MP4)
5057 ffio_wfourcc(pb, "mp41");
5059 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5060 ffio_wfourcc(pb, "dash");
5062 return update_size(pb, pos);
5065 static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
5067 AVStream *video_st = s->streams[0];
5068 AVCodecParameters *video_par = s->streams[0]->codecpar;
5069 AVCodecParameters *audio_par = s->streams[1]->codecpar;
5070 int audio_rate = audio_par->sample_rate;
5071 int64_t frame_rate = video_st->avg_frame_rate.den ?
5072 (video_st->avg_frame_rate.num * 0x10000LL) / video_st->avg_frame_rate.den :
5074 int audio_kbitrate = audio_par->bit_rate / 1000;
5075 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
5077 if (frame_rate < 0 || frame_rate > INT32_MAX) {
5078 av_log(s, AV_LOG_ERROR, "Frame rate %f outside supported range\n", frame_rate / (double)0x10000);
5079 return AVERROR(EINVAL);
5082 avio_wb32(pb, 0x94); /* size */
5083 ffio_wfourcc(pb, "uuid");
5084 ffio_wfourcc(pb, "PROF");
5086 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
5087 avio_wb32(pb, 0xbb88695c);
5088 avio_wb32(pb, 0xfac9c740);
5090 avio_wb32(pb, 0x0); /* ? */
5091 avio_wb32(pb, 0x3); /* 3 sections ? */
5093 avio_wb32(pb, 0x14); /* size */
5094 ffio_wfourcc(pb, "FPRF");
5095 avio_wb32(pb, 0x0); /* ? */
5096 avio_wb32(pb, 0x0); /* ? */
5097 avio_wb32(pb, 0x0); /* ? */
5099 avio_wb32(pb, 0x2c); /* size */
5100 ffio_wfourcc(pb, "APRF"); /* audio */
5102 avio_wb32(pb, 0x2); /* TrackID */
5103 ffio_wfourcc(pb, "mp4a");
5104 avio_wb32(pb, 0x20f);
5106 avio_wb32(pb, audio_kbitrate);
5107 avio_wb32(pb, audio_kbitrate);
5108 avio_wb32(pb, audio_rate);
5109 avio_wb32(pb, audio_par->channels);
5111 avio_wb32(pb, 0x34); /* size */
5112 ffio_wfourcc(pb, "VPRF"); /* video */
5114 avio_wb32(pb, 0x1); /* TrackID */
5115 if (video_par->codec_id == AV_CODEC_ID_H264) {
5116 ffio_wfourcc(pb, "avc1");
5117 avio_wb16(pb, 0x014D);
5118 avio_wb16(pb, 0x0015);
5120 ffio_wfourcc(pb, "mp4v");
5121 avio_wb16(pb, 0x0000);
5122 avio_wb16(pb, 0x0103);
5125 avio_wb32(pb, video_kbitrate);
5126 avio_wb32(pb, video_kbitrate);
5127 avio_wb32(pb, frame_rate);
5128 avio_wb32(pb, frame_rate);
5129 avio_wb16(pb, video_par->width);
5130 avio_wb16(pb, video_par->height);
5131 avio_wb32(pb, 0x010001); /* ? */
5136 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
5138 MOVMuxContext *mov = s->priv_data;
5141 mov_write_ftyp_tag(pb,s);
5142 if (mov->mode == MODE_PSP) {
5143 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
5144 for (i = 0; i < s->nb_streams; i++) {
5145 AVStream *st = s->streams[i];
5146 if (is_cover_image(st))
5148 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
5150 else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
5156 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
5157 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
5158 return AVERROR(EINVAL);
5160 return mov_write_uuidprof_tag(pb, s);
5165 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
5168 int i, closed_gop = 0;
5170 for (i = 0; i < pkt->size - 4; i++) {
5171 c = (c << 8) + pkt->data[i];
5172 if (c == 0x1b8) { // gop
5173 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
5174 } else if (c == 0x100) { // pic
5175 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
5176 if (!temp_ref || closed_gop) // I picture is not reordered
5177 *flags = MOV_SYNC_SAMPLE;
5179 *flags = MOV_PARTIAL_SYNC_SAMPLE;
5186 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
5188 const uint8_t *start, *next, *end = pkt->data + pkt->size;
5189 int seq = 0, entry = 0;
5190 int key = pkt->flags & AV_PKT_FLAG_KEY;
5191 start = find_next_marker(pkt->data, end);
5192 for (next = start; next < end; start = next) {
5193 next = find_next_marker(start + 4, end);
5194 switch (AV_RB32(start)) {
5195 case VC1_CODE_SEQHDR:
5198 case VC1_CODE_ENTRYPOINT:
5201 case VC1_CODE_SLICE:
5202 trk->vc1_info.slices = 1;
5206 if (!trk->entry && trk->vc1_info.first_packet_seen)
5207 trk->vc1_info.first_frag_written = 1;
5208 if (!trk->entry && !trk->vc1_info.first_frag_written) {
5209 /* First packet in first fragment */
5210 trk->vc1_info.first_packet_seq = seq;
5211 trk->vc1_info.first_packet_entry = entry;
5212 trk->vc1_info.first_packet_seen = 1;
5213 } else if ((seq && !trk->vc1_info.packet_seq) ||
5214 (entry && !trk->vc1_info.packet_entry)) {
5216 for (i = 0; i < trk->entry; i++)
5217 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
5218 trk->has_keyframes = 0;
5220 trk->vc1_info.packet_seq = 1;
5222 trk->vc1_info.packet_entry = 1;
5223 if (!trk->vc1_info.first_frag_written) {
5224 /* First fragment */
5225 if ((!seq || trk->vc1_info.first_packet_seq) &&
5226 (!entry || trk->vc1_info.first_packet_entry)) {
5227 /* First packet had the same headers as this one, readd the
5228 * sync sample flag. */
5229 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
5230 trk->has_keyframes = 1;
5234 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
5236 else if (trk->vc1_info.packet_seq)
5238 else if (trk->vc1_info.packet_entry)
5241 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5242 trk->has_keyframes++;
5246 static void mov_parse_truehd_frame(AVPacket *pkt, MOVTrack *trk)
5253 length = (AV_RB16(pkt->data) & 0xFFF) * 2;
5254 if (length < 8 || length > pkt->size)
5257 if (AV_RB32(pkt->data + 4) == 0xF8726FBA) {
5258 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5259 trk->has_keyframes++;
5265 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
5267 MOVMuxContext *mov = s->priv_data;
5272 if (!track->mdat_buf)
5274 if (!mov->mdat_buf) {
5275 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5278 buf_size = avio_get_dyn_buf(track->mdat_buf, &buf);
5280 offset = avio_tell(mov->mdat_buf);
5281 avio_write(mov->mdat_buf, buf, buf_size);
5282 ffio_free_dyn_buf(&track->mdat_buf);
5284 for (i = track->entries_flushed; i < track->entry; i++)
5285 track->cluster[i].pos += offset;
5286 track->entries_flushed = track->entry;
5290 static int mov_flush_fragment(AVFormatContext *s, int force)
5292 MOVMuxContext *mov = s->priv_data;
5293 int i, first_track = -1;
5294 int64_t mdat_size = 0;
5296 int has_video = 0, starts_with_key = 0, first_video_track = 1;
5298 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
5301 // Try to fill in the duration of the last packet in each stream
5302 // from queued packets in the interleave queues. If the flushing
5303 // of fragments was triggered automatically by an AVPacket, we
5304 // already have reliable info for the end of that track, but other
5305 // tracks may need to be filled in.
5306 for (i = 0; i < s->nb_streams; i++) {
5307 MOVTrack *track = &mov->tracks[i];
5308 if (!track->end_reliable) {
5309 const AVPacket *pkt = ff_interleaved_peek(s, i);
5311 int64_t offset, dts, pts;
5312 ff_get_muxer_ts_offset(s, i, &offset);
5313 pts = pkt->pts + offset;
5314 dts = pkt->dts + offset;
5315 if (track->dts_shift != AV_NOPTS_VALUE)
5316 dts += track->dts_shift;
5317 track->track_duration = dts - track->start_dts;
5318 if (pts != AV_NOPTS_VALUE)
5319 track->end_pts = pts;
5321 track->end_pts = dts;
5326 for (i = 0; i < mov->nb_streams; i++) {
5327 MOVTrack *track = &mov->tracks[i];
5328 if (track->entry <= 1)
5330 // Sample durations are calculated as the diff of dts values,
5331 // but for the last sample in a fragment, we don't know the dts
5332 // of the first sample in the next fragment, so we have to rely
5333 // on what was set as duration in the AVPacket. Not all callers
5334 // set this though, so we might want to replace it with an
5335 // estimate if it currently is zero.
5336 if (get_cluster_duration(track, track->entry - 1) != 0)
5338 // Use the duration (i.e. dts diff) of the second last sample for
5339 // the last one. This is a wild guess (and fatal if it turns out
5340 // to be too long), but probably the best we can do - having a zero
5341 // duration is bad as well.
5342 track->track_duration += get_cluster_duration(track, track->entry - 2);
5343 track->end_pts += get_cluster_duration(track, track->entry - 2);
5344 if (!mov->missing_duration_warned) {
5345 av_log(s, AV_LOG_WARNING,
5346 "Estimating the duration of the last packet in a "
5347 "fragment, consider setting the duration field in "
5348 "AVPacket instead.\n");
5349 mov->missing_duration_warned = 1;
5353 if (!mov->moov_written) {
5354 int64_t pos = avio_tell(s->pb);
5356 int buf_size, moov_size;
5358 for (i = 0; i < mov->nb_streams; i++)
5359 if (!mov->tracks[i].entry && !is_cover_image(mov->tracks[i].st))
5361 /* Don't write the initial moov unless all tracks have data */
5362 if (i < mov->nb_streams && !force)
5365 moov_size = get_moov_size(s);
5366 for (i = 0; i < mov->nb_streams; i++)
5367 mov->tracks[i].data_offset = pos + moov_size + 8;
5369 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
5370 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5371 mov_write_identification(s->pb, s);
5372 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
5375 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
5376 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5377 mov->reserved_header_pos = avio_tell(s->pb);
5378 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5379 mov->moov_written = 1;
5383 buf_size = avio_get_dyn_buf(mov->mdat_buf, &buf);
5384 avio_wb32(s->pb, buf_size + 8);
5385 ffio_wfourcc(s->pb, "mdat");
5386 avio_write(s->pb, buf, buf_size);
5387 ffio_free_dyn_buf(&mov->mdat_buf);
5389 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5390 mov->reserved_header_pos = avio_tell(s->pb);
5392 mov->moov_written = 1;
5394 for (i = 0; i < mov->nb_streams; i++) {
5395 if (mov->tracks[i].entry)
5396 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
5397 mov->tracks[i].track_duration -
5398 mov->tracks[i].cluster[0].dts;
5399 mov->tracks[i].entry = 0;
5400 mov->tracks[i].end_reliable = 0;
5402 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5406 if (mov->frag_interleave) {
5407 for (i = 0; i < mov->nb_streams; i++) {
5408 MOVTrack *track = &mov->tracks[i];
5410 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
5416 mdat_size = avio_tell(mov->mdat_buf);
5419 for (i = 0; i < mov->nb_streams; i++) {
5420 MOVTrack *track = &mov->tracks[i];
5421 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
5422 track->data_offset = 0;
5424 track->data_offset = mdat_size;
5425 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
5427 if (first_video_track) {
5429 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
5430 first_video_track = 0;
5435 if (track->mdat_buf)
5436 mdat_size += avio_tell(track->mdat_buf);
5437 if (first_track < 0)
5444 avio_write_marker(s->pb,
5445 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
5446 (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);
5448 for (i = 0; i < mov->nb_streams; i++) {
5449 MOVTrack *track = &mov->tracks[i];
5450 int buf_size, write_moof = 1, moof_tracks = -1;
5452 int64_t duration = 0;
5455 duration = track->start_dts + track->track_duration -
5456 track->cluster[0].dts;
5457 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
5458 if (!track->mdat_buf)
5460 mdat_size = avio_tell(track->mdat_buf);
5463 write_moof = i == first_track;
5467 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5469 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
5472 avio_wb32(s->pb, mdat_size + 8);
5473 ffio_wfourcc(s->pb, "mdat");
5477 track->frag_start += duration;
5479 track->entries_flushed = 0;
5480 track->end_reliable = 0;
5481 if (!mov->frag_interleave) {
5482 if (!track->mdat_buf)
5484 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
5485 track->mdat_buf = NULL;
5489 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
5490 mov->mdat_buf = NULL;
5493 avio_write(s->pb, buf, buf_size);
5499 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5503 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
5505 MOVMuxContext *mov = s->priv_data;
5506 int had_moov = mov->moov_written;
5507 int ret = mov_flush_fragment(s, force);
5510 // If using delay_moov, the first flush only wrote the moov,
5511 // not the actual moof+mdat pair, thus flush once again.
5512 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5513 ret = mov_flush_fragment(s, force);
5517 static int check_pkt(AVFormatContext *s, AVPacket *pkt)
5519 MOVMuxContext *mov = s->priv_data;
5520 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5525 ref = trk->cluster[trk->entry - 1].dts;
5526 } else if ( trk->start_dts != AV_NOPTS_VALUE
5527 && !trk->frag_discont) {
5528 ref = trk->start_dts + trk->track_duration;
5530 ref = pkt->dts; // Skip tests for the first packet
5532 if (trk->dts_shift != AV_NOPTS_VALUE) {
5533 /* With negative CTS offsets we have set an offset to the DTS,
5534 * reverse this for the check. */
5535 ref -= trk->dts_shift;
5538 duration = pkt->dts - ref;
5539 if (pkt->dts < ref || duration >= INT_MAX) {
5540 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
5545 pkt->pts = AV_NOPTS_VALUE;
5548 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
5549 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
5550 return AVERROR(EINVAL);
5555 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5557 MOVMuxContext *mov = s->priv_data;
5558 AVIOContext *pb = s->pb;
5559 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5560 AVCodecParameters *par = trk->par;
5561 AVProducerReferenceTime *prft;
5562 unsigned int samples_in_chunk = 0;
5563 int size = pkt->size, ret = 0, offset = 0;
5564 buffer_size_t prft_size;
5565 uint8_t *reformatted_data = NULL;
5567 ret = check_pkt(s, pkt);
5571 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5573 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
5574 if (mov->frag_interleave && mov->fragments > 0) {
5575 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
5576 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
5581 if (!trk->mdat_buf) {
5582 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
5587 if (!mov->mdat_buf) {
5588 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5595 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
5596 /* We must find out how many AMR blocks there are in one packet */
5597 static const uint16_t packed_size[16] =
5598 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
5601 while (len < size && samples_in_chunk < 100) {
5602 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
5605 if (samples_in_chunk > 1) {
5606 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
5609 } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
5610 par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
5611 samples_in_chunk = trk->par->frame_size;
5612 } else if (trk->sample_size)
5613 samples_in_chunk = size / trk->sample_size;
5615 samples_in_chunk = 1;
5617 if (samples_in_chunk < 1) {
5618 av_log(s, AV_LOG_ERROR, "fatal error, input packet contains no samples\n");
5619 return AVERROR_PATCHWELCOME;
5622 /* copy extradata if it exists */
5623 if (trk->vos_len == 0 && par->extradata_size > 0 &&
5624 !TAG_IS_AVCI(trk->tag) &&
5625 (par->codec_id != AV_CODEC_ID_DNXHD)) {
5626 trk->vos_len = par->extradata_size;
5627 trk->vos_data = av_malloc(trk->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
5628 if (!trk->vos_data) {
5629 ret = AVERROR(ENOMEM);
5632 memcpy(trk->vos_data, par->extradata, trk->vos_len);
5633 memset(trk->vos_data + trk->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5636 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
5637 par->codec_id == AV_CODEC_ID_H264 ||
5638 par->codec_id == AV_CODEC_ID_HEVC ||
5639 par->codec_id == AV_CODEC_ID_TRUEHD ||
5640 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len &&
5641 !TAG_IS_AVCI(trk->tag)) {
5642 /* copy frame to create needed atoms */
5643 trk->vos_len = size;
5644 trk->vos_data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
5645 if (!trk->vos_data) {
5646 ret = AVERROR(ENOMEM);
5649 memcpy(trk->vos_data, pkt->data, size);
5650 memset(trk->vos_data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5653 if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
5654 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
5655 if (!s->streams[pkt->stream_index]->nb_frames) {
5656 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
5657 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
5658 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
5661 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
5663 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
5664 /* from x264 or from bytestream H.264 */
5665 /* NAL reformatting needed */
5666 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5667 ret = ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
5671 avio_write(pb, reformatted_data, size);
5673 if (trk->cenc.aes_ctr) {
5674 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
5680 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
5683 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
5684 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
5685 /* extradata is Annex B, assume the bitstream is too and convert it */
5686 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5687 ret = ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data,
5691 avio_write(pb, reformatted_data, size);
5693 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
5695 } else if (par->codec_id == AV_CODEC_ID_AV1) {
5696 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5697 ret = ff_av1_filter_obus_buf(pkt->data, &reformatted_data,
5701 avio_write(pb, reformatted_data, size);
5703 size = ff_av1_filter_obus(pb, pkt->data, pkt->size);
5705 #if CONFIG_AC3_PARSER
5706 } else if (par->codec_id == AV_CODEC_ID_EAC3) {
5707 size = handle_eac3(mov, pkt, trk);
5712 avio_write(pb, pkt->data, size);
5714 } else if (par->codec_id == AV_CODEC_ID_EIA_608) {
5717 for (int i = 0; i < pkt->size; i += 3) {
5718 if (pkt->data[i] == 0xFC) {
5722 avio_wb32(pb, size);
5723 ffio_wfourcc(pb, "cdat");
5724 for (int i = 0; i < pkt->size; i += 3) {
5725 if (pkt->data[i] == 0xFC) {
5726 avio_w8(pb, pkt->data[i + 1]);
5727 avio_w8(pb, pkt->data[i + 2]);
5731 if (trk->cenc.aes_ctr) {
5732 if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
5733 int nal_size_length = (par->extradata[4] & 0x3) + 1;
5734 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
5736 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
5743 avio_write(pb, pkt->data, size);
5747 if (trk->entry >= trk->cluster_capacity) {
5748 unsigned new_capacity = trk->entry + MOV_INDEX_CLUSTER_SIZE;
5749 void *cluster = av_realloc_array(trk->cluster, new_capacity, sizeof(*trk->cluster));
5751 ret = AVERROR(ENOMEM);
5754 trk->cluster = cluster;
5755 trk->cluster_capacity = new_capacity;
5758 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
5759 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
5760 trk->cluster[trk->entry].chunkNum = 0;
5761 trk->cluster[trk->entry].size = size;
5762 trk->cluster[trk->entry].entries = samples_in_chunk;
5763 trk->cluster[trk->entry].dts = pkt->dts;
5764 trk->cluster[trk->entry].pts = pkt->pts;
5765 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
5766 if (!trk->frag_discont) {
5767 /* First packet of a new fragment. We already wrote the duration
5768 * of the last packet of the previous fragment based on track_duration,
5769 * which might not exactly match our dts. Therefore adjust the dts
5770 * of this packet to be what the previous packets duration implies. */
5771 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
5772 /* We also may have written the pts and the corresponding duration
5773 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
5774 * the next fragment. This means the cts of the first sample must
5775 * be the same in all fragments, unless end_pts was updated by
5776 * the packet causing the fragment to be written. */
5777 if ((mov->flags & FF_MOV_FLAG_DASH &&
5778 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX))) ||
5779 mov->mode == MODE_ISM)
5780 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
5782 /* New fragment, but discontinuous from previous fragments.
5783 * Pretend the duration sum of the earlier fragments is
5784 * pkt->dts - trk->start_dts. */
5785 trk->frag_start = pkt->dts - trk->start_dts;
5786 trk->end_pts = AV_NOPTS_VALUE;
5787 trk->frag_discont = 0;
5791 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
5792 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
5793 /* Not using edit lists and shifting the first track to start from zero.
5794 * If the other streams start from a later timestamp, we won't be able
5795 * to signal the difference in starting time without an edit list.
5796 * Thus move the timestamp for this first sample to 0, increasing
5797 * its duration instead. */
5798 trk->cluster[trk->entry].dts = trk->start_dts = 0;
5800 if (trk->start_dts == AV_NOPTS_VALUE) {
5801 trk->start_dts = pkt->dts;
5802 if (trk->frag_discont) {
5803 if (mov->use_editlist) {
5804 /* Pretend the whole stream started at pts=0, with earlier fragments
5805 * already written. If the stream started at pts=0, the duration sum
5806 * of earlier fragments would have been pkt->pts. */
5807 trk->frag_start = pkt->pts;
5808 trk->start_dts = pkt->dts - pkt->pts;
5810 /* Pretend the whole stream started at dts=0, with earlier fragments
5811 * already written, with a duration summing up to pkt->dts. */
5812 trk->frag_start = pkt->dts;
5815 trk->frag_discont = 0;
5816 } else if (pkt->dts && mov->moov_written)
5817 av_log(s, AV_LOG_WARNING,
5818 "Track %d starts with a nonzero dts %"PRId64", while the moov "
5819 "already has been written. Set the delay_moov flag to handle "
5821 pkt->stream_index, pkt->dts);
5823 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
5824 trk->last_sample_is_subtitle_end = 0;
5826 if (pkt->pts == AV_NOPTS_VALUE) {
5827 av_log(s, AV_LOG_WARNING, "pts has no value\n");
5828 pkt->pts = pkt->dts;
5830 if (pkt->dts != pkt->pts)
5831 trk->flags |= MOV_TRACK_CTTS;
5832 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
5833 trk->cluster[trk->entry].flags = 0;
5834 if (trk->start_cts == AV_NOPTS_VALUE)
5835 trk->start_cts = pkt->pts - pkt->dts;
5836 if (trk->end_pts == AV_NOPTS_VALUE)
5837 trk->end_pts = trk->cluster[trk->entry].dts +
5838 trk->cluster[trk->entry].cts + pkt->duration;
5840 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
5841 trk->cluster[trk->entry].cts +
5844 if (par->codec_id == AV_CODEC_ID_VC1) {
5845 mov_parse_vc1_frame(pkt, trk);
5846 } else if (par->codec_id == AV_CODEC_ID_TRUEHD) {
5847 mov_parse_truehd_frame(pkt, trk);
5848 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
5849 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
5850 trk->entry > 0) { // force sync sample for the first key frame
5851 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
5852 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
5853 trk->flags |= MOV_TRACK_STPS;
5855 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
5857 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
5858 trk->has_keyframes++;
5860 if (pkt->flags & AV_PKT_FLAG_DISPOSABLE) {
5861 trk->cluster[trk->entry].flags |= MOV_DISPOSABLE_SAMPLE;
5862 trk->has_disposable++;
5865 prft = (AVProducerReferenceTime *)av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &prft_size);
5866 if (prft && prft_size == sizeof(AVProducerReferenceTime))
5867 memcpy(&trk->cluster[trk->entry].prft, prft, prft_size);
5869 memset(&trk->cluster[trk->entry].prft, 0, sizeof(AVProducerReferenceTime));
5872 trk->sample_count += samples_in_chunk;
5873 mov->mdat_size += size;
5875 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
5876 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
5877 reformatted_data ? reformatted_data + offset
5883 if (pkt->data != reformatted_data)
5884 av_free(reformatted_data);
5888 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
5890 MOVMuxContext *mov = s->priv_data;
5891 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5892 AVCodecParameters *par = trk->par;
5893 int64_t frag_duration = 0;
5894 int size = pkt->size;
5896 int ret = check_pkt(s, pkt);
5900 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
5902 for (i = 0; i < s->nb_streams; i++)
5903 mov->tracks[i].frag_discont = 1;
5904 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
5907 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) {
5908 if (trk->dts_shift == AV_NOPTS_VALUE)
5909 trk->dts_shift = pkt->pts - pkt->dts;
5910 pkt->dts += trk->dts_shift;
5913 if (trk->par->codec_id == AV_CODEC_ID_MP4ALS ||
5914 trk->par->codec_id == AV_CODEC_ID_AAC ||
5915 trk->par->codec_id == AV_CODEC_ID_AV1 ||
5916 trk->par->codec_id == AV_CODEC_ID_FLAC) {
5917 buffer_size_t side_size;
5918 uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
5919 if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) {
5920 void *newextra = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE);
5922 return AVERROR(ENOMEM);
5923 av_free(par->extradata);
5924 par->extradata = newextra;
5925 memcpy(par->extradata, side, side_size);
5926 par->extradata_size = side_size;
5927 if (!pkt->size) // Flush packet
5928 mov->need_rewrite_extradata = 1;
5933 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
5934 trk->start_dts = pkt->dts;
5935 if (pkt->pts != AV_NOPTS_VALUE)
5936 trk->start_cts = pkt->pts - pkt->dts;
5941 return 0; /* Discard 0 sized packets */
5944 if (trk->entry && pkt->stream_index < s->nb_streams)
5945 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
5946 s->streams[pkt->stream_index]->time_base,
5948 if ((mov->max_fragment_duration &&
5949 frag_duration >= mov->max_fragment_duration) ||
5950 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
5951 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
5952 par->codec_type == AVMEDIA_TYPE_VIDEO &&
5953 trk->entry && pkt->flags & AV_PKT_FLAG_KEY) ||
5954 (mov->flags & FF_MOV_FLAG_FRAG_EVERY_FRAME)) {
5955 if (frag_duration >= mov->min_fragment_duration) {
5956 // Set the duration of this track to line up with the next
5957 // sample in this track. This avoids relying on AVPacket
5958 // duration, but only helps for this particular track, not
5959 // for the other ones that are flushed at the same time.
5960 trk->track_duration = pkt->dts - trk->start_dts;
5961 if (pkt->pts != AV_NOPTS_VALUE)
5962 trk->end_pts = pkt->pts;
5964 trk->end_pts = pkt->dts;
5965 trk->end_reliable = 1;
5966 mov_auto_flush_fragment(s, 0);
5970 return ff_mov_write_packet(s, pkt);
5973 static int mov_write_subtitle_end_packet(AVFormatContext *s,
5976 MOVMuxContext *mov = s->priv_data;
5977 AVPacket *end = mov->pkt;
5978 uint8_t data[2] = {0};
5981 end->size = sizeof(data);
5986 end->stream_index = stream_index;
5988 ret = mov_write_single_packet(s, end);
5989 av_packet_unref(end);
5994 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5996 MOVMuxContext *mov = s->priv_data;
6000 mov_flush_fragment(s, 1);
6004 trk = &mov->tracks[pkt->stream_index];
6006 if (is_cover_image(trk->st)) {
6009 if (trk->st->nb_frames >= 1) {
6010 if (trk->st->nb_frames == 1)
6011 av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d,"
6012 " ignoring.\n", pkt->stream_index);
6016 if ((ret = av_packet_ref(trk->cover_image, pkt)) < 0)
6024 return mov_write_single_packet(s, pkt); /* Passthrough. */
6027 * Subtitles require special handling.
6029 * 1) For full complaince, every track must have a sample at
6030 * dts == 0, which is rarely true for subtitles. So, as soon
6031 * as we see any packet with dts > 0, write an empty subtitle
6032 * at dts == 0 for any subtitle track with no samples in it.
6034 * 2) For each subtitle track, check if the current packet's
6035 * dts is past the duration of the last subtitle sample. If
6036 * so, we now need to write an end sample for that subtitle.
6038 * This must be done conditionally to allow for subtitles that
6039 * immediately replace each other, in which case an end sample
6040 * is not needed, and is, in fact, actively harmful.
6042 * 3) See mov_write_trailer for how the final end sample is
6045 for (i = 0; i < mov->nb_streams; i++) {
6046 MOVTrack *trk = &mov->tracks[i];
6049 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
6050 trk->track_duration < pkt->dts &&
6051 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
6052 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
6053 if (ret < 0) return ret;
6054 trk->last_sample_is_subtitle_end = 1;
6058 if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
6059 AVPacket *opkt = pkt;
6060 int reshuffle_ret, ret;
6061 if (trk->is_unaligned_qt_rgb) {
6062 int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
6063 int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
6064 reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
6065 if (reshuffle_ret < 0)
6066 return reshuffle_ret;
6069 if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
6070 ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
6075 } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
6076 (trk->par->format == AV_PIX_FMT_GRAY8 ||
6077 trk->par->format == AV_PIX_FMT_MONOBLACK)) {
6078 for (i = 0; i < pkt->size; i++)
6079 pkt->data[i] = ~pkt->data[i];
6081 if (reshuffle_ret) {
6082 ret = mov_write_single_packet(s, pkt);
6085 av_packet_free(&pkt);
6090 return mov_write_single_packet(s, pkt);
6094 // QuickTime chapters involve an additional text track with the chapter names
6095 // as samples, and a tref pointing from the other tracks to the chapter one.
6096 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
6100 MOVMuxContext *mov = s->priv_data;
6101 MOVTrack *track = &mov->tracks[tracknum];
6102 AVPacket *pkt = mov->pkt;
6105 track->mode = mov->mode;
6106 track->tag = MKTAG('t','e','x','t');
6107 track->timescale = MOV_TIMESCALE;
6108 track->par = avcodec_parameters_alloc();
6110 return AVERROR(ENOMEM);
6111 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
6113 // These properties are required to make QT recognize the chapter track
6114 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
6115 if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
6116 return AVERROR(ENOMEM);
6117 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
6119 if (avio_open_dyn_buf(&pb) >= 0) {
6123 /* Stub header (usually for Quicktime chapter track) */
6125 avio_wb32(pb, 0x01); // displayFlags
6126 avio_w8(pb, 0x00); // horizontal justification
6127 avio_w8(pb, 0x00); // vertical justification
6128 avio_w8(pb, 0x00); // bgColourRed
6129 avio_w8(pb, 0x00); // bgColourGreen
6130 avio_w8(pb, 0x00); // bgColourBlue
6131 avio_w8(pb, 0x00); // bgColourAlpha
6133 avio_wb16(pb, 0x00); // defTextBoxTop
6134 avio_wb16(pb, 0x00); // defTextBoxLeft
6135 avio_wb16(pb, 0x00); // defTextBoxBottom
6136 avio_wb16(pb, 0x00); // defTextBoxRight
6138 avio_wb16(pb, 0x00); // startChar
6139 avio_wb16(pb, 0x00); // endChar
6140 avio_wb16(pb, 0x01); // fontID
6141 avio_w8(pb, 0x00); // fontStyleFlags
6142 avio_w8(pb, 0x00); // fontSize
6143 avio_w8(pb, 0x00); // fgColourRed
6144 avio_w8(pb, 0x00); // fgColourGreen
6145 avio_w8(pb, 0x00); // fgColourBlue
6146 avio_w8(pb, 0x00); // fgColourAlpha
6148 avio_wb32(pb, 0x0D); // box size
6149 ffio_wfourcc(pb, "ftab"); // box atom name
6150 avio_wb16(pb, 0x01); // entry count
6152 avio_wb16(pb, 0x01); // font ID
6153 avio_w8(pb, 0x00); // font name length
6155 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
6156 track->par->extradata = buf;
6157 track->par->extradata_size = size;
6164 pkt->stream_index = tracknum;
6165 pkt->flags = AV_PKT_FLAG_KEY;
6167 for (i = 0; i < s->nb_chapters; i++) {
6168 AVChapter *c = s->chapters[i];
6169 AVDictionaryEntry *t;
6171 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
6172 pkt->pts = pkt->dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
6173 pkt->duration = end - pkt->dts;
6175 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
6176 static const char encd[12] = {
6177 0x00, 0x00, 0x00, 0x0C,
6179 0x00, 0x00, 0x01, 0x00 };
6180 len = strlen(t->value);
6181 pkt->size = len + 2 + 12;
6182 pkt->data = av_malloc(pkt->size);
6184 av_packet_unref(pkt);
6185 return AVERROR(ENOMEM);
6187 AV_WB16(pkt->data, len);
6188 memcpy(pkt->data + 2, t->value, len);
6189 memcpy(pkt->data + len + 2, encd, sizeof(encd));
6190 ff_mov_write_packet(s, pkt);
6191 av_freep(&pkt->data);
6195 av_packet_unref(mov->pkt);
6201 static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr)
6205 /* compute the frame number */
6206 ret = av_timecode_init_from_string(tc, find_fps(s, s->streams[src_index]), tcstr, s);
6210 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
6212 MOVMuxContext *mov = s->priv_data;
6213 MOVTrack *track = &mov->tracks[index];
6214 AVStream *src_st = s->streams[src_index];
6216 AVPacket *pkt = mov->pkt;
6217 AVRational rate = find_fps(s, src_st);
6220 /* tmcd track based on video stream */
6221 track->mode = mov->mode;
6222 track->tag = MKTAG('t','m','c','d');
6223 track->src_track = src_index;
6224 track->timescale = mov->tracks[src_index].timescale;
6225 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
6226 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
6228 /* set st to src_st for metadata access*/
6231 /* encode context: tmcd data stream */
6232 track->par = avcodec_parameters_alloc();
6234 return AVERROR(ENOMEM);
6235 track->par->codec_type = AVMEDIA_TYPE_DATA;
6236 track->par->codec_tag = track->tag;
6237 track->st->avg_frame_rate = rate;
6239 /* the tmcd track just contains one packet with the frame number */
6241 pkt->stream_index = index;
6242 pkt->flags = AV_PKT_FLAG_KEY;
6244 AV_WB32(pkt->data, tc.start);
6245 ret = ff_mov_write_packet(s, pkt);
6246 av_packet_unref(pkt);
6251 * st->disposition controls the "enabled" flag in the tkhd tag.
6252 * QuickTime will not play a track if it is not enabled. So make sure
6253 * that one track of each type (audio, video, subtitle) is enabled.
6255 * Subtitles are special. For audio and video, setting "enabled" also
6256 * makes the track "default" (i.e. it is rendered when played). For
6257 * subtitles, an "enabled" subtitle is not rendered by default, but
6258 * if no subtitle is enabled, the subtitle menu in QuickTime will be
6261 static void enable_tracks(AVFormatContext *s)
6263 MOVMuxContext *mov = s->priv_data;
6265 int enabled[AVMEDIA_TYPE_NB];
6266 int first[AVMEDIA_TYPE_NB];
6268 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6273 for (i = 0; i < s->nb_streams; i++) {
6274 AVStream *st = s->streams[i];
6276 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
6277 st->codecpar->codec_type >= AVMEDIA_TYPE_NB ||
6281 if (first[st->codecpar->codec_type] < 0)
6282 first[st->codecpar->codec_type] = i;
6283 if (st->disposition & AV_DISPOSITION_DEFAULT) {
6284 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
6285 enabled[st->codecpar->codec_type]++;
6289 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6291 case AVMEDIA_TYPE_VIDEO:
6292 case AVMEDIA_TYPE_AUDIO:
6293 case AVMEDIA_TYPE_SUBTITLE:
6295 mov->per_stream_grouping = 1;
6296 if (!enabled[i] && first[i] >= 0)
6297 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
6303 static void mov_free(AVFormatContext *s)
6305 MOVMuxContext *mov = s->priv_data;
6308 av_packet_free(&mov->pkt);
6313 if (mov->chapter_track) {
6314 avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
6317 for (i = 0; i < mov->nb_streams; i++) {
6318 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
6319 ff_mov_close_hinting(&mov->tracks[i]);
6320 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
6321 av_freep(&mov->tracks[i].par);
6322 av_freep(&mov->tracks[i].cluster);
6323 av_freep(&mov->tracks[i].frag_info);
6324 av_packet_free(&mov->tracks[i].cover_image);
6326 if (mov->tracks[i].eac3_priv) {
6327 struct eac3_info *info = mov->tracks[i].eac3_priv;
6328 av_packet_free(&info->pkt);
6329 av_freep(&mov->tracks[i].eac3_priv);
6331 if (mov->tracks[i].vos_len)
6332 av_freep(&mov->tracks[i].vos_data);
6334 ff_mov_cenc_free(&mov->tracks[i].cenc);
6335 ffio_free_dyn_buf(&mov->tracks[i].mdat_buf);
6338 av_freep(&mov->tracks);
6339 ffio_free_dyn_buf(&mov->mdat_buf);
6342 static uint32_t rgb_to_yuv(uint32_t rgb)
6347 r = (rgb >> 16) & 0xFF;
6348 g = (rgb >> 8) & 0xFF;
6351 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
6352 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
6353 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
6355 return (y << 16) | (cr << 8) | cb;
6358 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
6361 int i, width = 720, height = 480;
6362 int have_palette = 0, have_size = 0;
6363 uint32_t palette[16];
6364 char *cur = st->codecpar->extradata;
6366 while (cur && *cur) {
6367 if (strncmp("palette:", cur, 8) == 0) {
6369 count = sscanf(cur + 8,
6370 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6371 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6372 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6373 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
6374 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
6375 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
6376 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
6377 &palette[12], &palette[13], &palette[14], &palette[15]);
6379 for (i = 0; i < count; i++) {
6380 palette[i] = rgb_to_yuv(palette[i]);
6383 } else if (!strncmp("size:", cur, 5)) {
6384 sscanf(cur + 5, "%dx%d", &width, &height);
6387 if (have_palette && have_size)
6389 cur += strcspn(cur, "\n\r");
6390 cur += strspn(cur, "\n\r");
6393 track->vos_data = av_malloc(16*4 + AV_INPUT_BUFFER_PADDING_SIZE);
6394 if (!track->vos_data)
6395 return AVERROR(ENOMEM);
6396 for (i = 0; i < 16; i++) {
6397 AV_WB32(track->vos_data + i * 4, palette[i]);
6399 memset(track->vos_data + 16*4, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6400 track->vos_len = 16 * 4;
6402 st->codecpar->width = width;
6403 st->codecpar->height = track->height = height;
6408 static int mov_init(AVFormatContext *s)
6410 MOVMuxContext *mov = s->priv_data;
6415 /* Default mode == MP4 */
6416 mov->mode = MODE_MP4;
6418 #define IS_MODE(muxer, config) (CONFIG_ ## config ## _MUXER && !strcmp(#muxer, s->oformat->name))
6419 if (IS_MODE(3gp, TGP)) mov->mode = MODE_3GP;
6420 else if (IS_MODE(3g2, TG2)) mov->mode = MODE_3GP|MODE_3G2;
6421 else if (IS_MODE(mov, MOV)) mov->mode = MODE_MOV;
6422 else if (IS_MODE(psp, PSP)) mov->mode = MODE_PSP;
6423 else if (IS_MODE(ipod, IPOD)) mov->mode = MODE_IPOD;
6424 else if (IS_MODE(ismv, ISMV)) mov->mode = MODE_ISM;
6425 else if (IS_MODE(f4v, F4V)) mov->mode = MODE_F4V;
6428 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
6429 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
6431 /* Set the FRAGMENT flag if any of the fragmentation methods are
6433 if (mov->max_fragment_duration || mov->max_fragment_size ||
6434 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
6435 FF_MOV_FLAG_FRAG_KEYFRAME |
6436 FF_MOV_FLAG_FRAG_CUSTOM |
6437 FF_MOV_FLAG_FRAG_EVERY_FRAME))
6438 mov->flags |= FF_MOV_FLAG_FRAGMENT;
6440 /* Set other implicit flags immediately */
6441 if (mov->mode == MODE_ISM)
6442 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
6443 FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6444 if (mov->flags & FF_MOV_FLAG_DASH)
6445 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6446 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
6447 if (mov->flags & FF_MOV_FLAG_CMAF)
6448 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6449 FF_MOV_FLAG_DEFAULT_BASE_MOOF | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6451 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && s->flags & AVFMT_FLAG_AUTO_BSF) {
6452 av_log(s, AV_LOG_VERBOSE, "Empty MOOV enabled; disabling automatic bitstream filtering\n");
6453 s->flags &= ~AVFMT_FLAG_AUTO_BSF;
6456 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX && mov->flags & FF_MOV_FLAG_SKIP_SIDX) {
6457 av_log(s, AV_LOG_WARNING, "Global SIDX enabled; Ignoring skip_sidx option\n");
6458 mov->flags &= ~FF_MOV_FLAG_SKIP_SIDX;
6461 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
6462 mov->reserved_moov_size = -1;
6465 if (mov->use_editlist < 0) {
6466 mov->use_editlist = 1;
6467 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
6468 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6469 // If we can avoid needing an edit list by shifting the
6470 // tracks, prefer that over (trying to) write edit lists
6471 // in fragmented output.
6472 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
6473 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
6474 mov->use_editlist = 0;
6476 if (mov->flags & FF_MOV_FLAG_CMAF) {
6477 // CMAF Track requires negative cts offsets without edit lists
6478 mov->use_editlist = 0;
6481 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6482 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
6483 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
6485 if (mov->flags & FF_MOV_FLAG_CMAF && mov->use_editlist) {
6486 av_log(s, AV_LOG_WARNING, "Edit list enabled; Assuming writing CMAF Track File\n");
6487 mov->flags &= ~FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6489 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO &&
6490 !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
6491 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
6493 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
6494 * if the latter is set that's enough and omit_tfhd_offset doesn't
6495 * add anything extra on top of that. */
6496 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
6497 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
6498 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
6500 if (mov->frag_interleave &&
6501 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
6502 av_log(s, AV_LOG_ERROR,
6503 "Sample interleaving in fragments is mutually exclusive with "
6504 "omit_tfhd_offset and separate_moof\n");
6505 return AVERROR(EINVAL);
6508 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
6509 * is enabled, we don't support non-seekable output at all. */
6510 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
6511 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
6512 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
6513 return AVERROR(EINVAL);
6516 mov->nb_streams = s->nb_streams;
6517 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6518 mov->chapter_track = mov->nb_streams++;
6520 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6521 for (i = 0; i < s->nb_streams; i++)
6522 if (rtp_hinting_needed(s->streams[i]))
6526 if ( mov->write_tmcd == -1 && (mov->mode == MODE_MOV || mov->mode == MODE_MP4)
6527 || mov->write_tmcd == 1) {
6528 AVDictionaryEntry *global_tcr = av_dict_get(s->metadata, "timecode",
6531 /* +1 tmcd track for each video stream with a timecode */
6532 for (i = 0; i < s->nb_streams; i++) {
6533 AVStream *st = s->streams[i];
6534 AVDictionaryEntry *t = global_tcr;
6535 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
6536 (t || (t=av_dict_get(st->metadata, "timecode", NULL, 0)))) {
6538 ret = mov_check_timecode_track(s, &tc, i, t->value);
6540 mov->nb_meta_tmcd++;
6544 /* check if there is already a tmcd track to remux */
6545 if (mov->nb_meta_tmcd) {
6546 for (i = 0; i < s->nb_streams; i++) {
6547 AVStream *st = s->streams[i];
6548 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
6549 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
6550 "so timecode metadata are now ignored\n");
6551 mov->nb_meta_tmcd = 0;
6556 mov->nb_streams += mov->nb_meta_tmcd;
6559 mov->pkt = av_packet_alloc();
6561 return AVERROR(ENOMEM);
6563 // Reserve an extra stream for chapters for the case where chapters
6564 // are written in the trailer
6565 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
6567 return AVERROR(ENOMEM);
6569 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
6570 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
6571 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
6573 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
6574 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
6575 mov->encryption_key_len, AES_CTR_KEY_SIZE);
6576 return AVERROR(EINVAL);
6579 if (mov->encryption_kid_len != CENC_KID_SIZE) {
6580 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
6581 mov->encryption_kid_len, CENC_KID_SIZE);
6582 return AVERROR(EINVAL);
6585 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
6586 mov->encryption_scheme_str);
6587 return AVERROR(EINVAL);
6591 for (i = 0; i < s->nb_streams; i++) {
6592 AVStream *st= s->streams[i];
6593 MOVTrack *track= &mov->tracks[i];
6594 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
6597 track->par = st->codecpar;
6598 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
6599 if (track->language < 0)
6600 track->language = 32767; // Unspecified Macintosh language code
6601 track->mode = mov->mode;
6602 track->tag = mov_find_codec_tag(s, track);
6604 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
6605 "codec not currently supported in container\n",
6606 avcodec_get_name(st->codecpar->codec_id), i);
6607 return AVERROR(EINVAL);
6609 /* If hinting of this track is enabled by a later hint track,
6610 * this is updated. */
6611 track->hint_track = -1;
6612 track->start_dts = AV_NOPTS_VALUE;
6613 track->start_cts = AV_NOPTS_VALUE;
6614 track->end_pts = AV_NOPTS_VALUE;
6615 track->dts_shift = AV_NOPTS_VALUE;
6616 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6617 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
6618 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
6619 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
6620 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
6621 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
6622 return AVERROR(EINVAL);
6624 track->height = track->tag >> 24 == 'n' ? 486 : 576;
6626 if (mov->video_track_timescale) {
6627 track->timescale = mov->video_track_timescale;
6628 if (mov->mode == MODE_ISM && mov->video_track_timescale != 10000000)
6629 av_log(s, AV_LOG_WARNING, "Warning: some tools, like mp4split, assume a timescale of 10000000 for ISMV.\n");
6631 track->timescale = st->time_base.den;
6632 while(track->timescale < 10000)
6633 track->timescale *= 2;
6635 if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
6636 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
6637 return AVERROR(EINVAL);
6639 if (track->mode == MODE_MOV && track->timescale > 100000)
6640 av_log(s, AV_LOG_WARNING,
6641 "WARNING codec timebase is very high. If duration is too long,\n"
6642 "file may not be playable by quicktime. Specify a shorter timebase\n"
6643 "or choose different container.\n");
6644 if (track->mode == MODE_MOV &&
6645 track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
6646 track->tag == MKTAG('r','a','w',' ')) {
6647 enum AVPixelFormat pix_fmt = track->par->format;
6648 if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
6649 pix_fmt = AV_PIX_FMT_MONOWHITE;
6650 track->is_unaligned_qt_rgb =
6651 pix_fmt == AV_PIX_FMT_RGB24 ||
6652 pix_fmt == AV_PIX_FMT_BGR24 ||
6653 pix_fmt == AV_PIX_FMT_PAL8 ||
6654 pix_fmt == AV_PIX_FMT_GRAY8 ||
6655 pix_fmt == AV_PIX_FMT_MONOWHITE ||
6656 pix_fmt == AV_PIX_FMT_MONOBLACK;
6658 if (track->par->codec_id == AV_CODEC_ID_VP9 ||
6659 track->par->codec_id == AV_CODEC_ID_AV1) {
6660 if (track->mode != MODE_MP4) {
6661 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6662 return AVERROR(EINVAL);
6664 } else if (track->par->codec_id == AV_CODEC_ID_VP8) {
6665 /* altref frames handling is not defined in the spec as of version v1.0,
6666 * so just forbid muxing VP8 streams altogether until a new version does */
6667 av_log(s, AV_LOG_ERROR, "VP8 muxing is currently not supported.\n");
6668 return AVERROR_PATCHWELCOME;
6670 if (is_cover_image(st)) {
6671 track->cover_image = av_packet_alloc();
6672 if (!track->cover_image)
6673 return AVERROR(ENOMEM);
6675 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
6676 track->timescale = st->codecpar->sample_rate;
6677 if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
6678 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
6679 track->audio_vbr = 1;
6680 }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
6681 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
6682 st->codecpar->codec_id == AV_CODEC_ID_ILBC){
6683 if (!st->codecpar->block_align) {
6684 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
6685 return AVERROR(EINVAL);
6687 track->sample_size = st->codecpar->block_align;
6688 }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
6689 track->audio_vbr = 1;
6691 track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
6693 if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
6694 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
6695 track->audio_vbr = 1;
6697 if (track->mode != MODE_MOV &&
6698 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
6699 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
6700 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
6701 i, track->par->sample_rate);
6702 return AVERROR(EINVAL);
6704 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
6705 i, track->par->sample_rate);
6708 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
6709 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
6710 track->par->codec_id == AV_CODEC_ID_OPUS) {
6711 if (track->mode != MODE_MP4) {
6712 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6713 return AVERROR(EINVAL);
6715 if (track->par->codec_id != AV_CODEC_ID_OPUS &&
6716 s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
6717 av_log(s, AV_LOG_ERROR,
6718 "%s in MP4 support is experimental, add "
6719 "'-strict %d' if you want to use it.\n",
6720 avcodec_get_name(track->par->codec_id), FF_COMPLIANCE_EXPERIMENTAL);
6721 return AVERROR_EXPERIMENTAL;
6724 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6725 track->timescale = st->time_base.den;
6726 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
6727 track->timescale = st->time_base.den;
6729 track->timescale = MOV_TIMESCALE;
6732 track->height = st->codecpar->height;
6733 /* The Protected Interoperable File Format (PIFF) standard, used by ISMV recommends but
6734 doesn't mandate a track timescale of 10,000,000. The muxer allows a custom timescale
6735 for video tracks, so if user-set, it isn't overwritten */
6736 if (mov->mode == MODE_ISM &&
6737 (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ||
6738 (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !mov->video_track_timescale))) {
6739 track->timescale = 10000000;
6742 avpriv_set_pts_info(st, 64, 1, track->timescale);
6744 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
6745 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
6746 track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
6756 static int mov_write_header(AVFormatContext *s)
6758 AVIOContext *pb = s->pb;
6759 MOVMuxContext *mov = s->priv_data;
6760 int i, ret, hint_track = 0, tmcd_track = 0, nb_tracks = s->nb_streams;
6762 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6765 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6766 hint_track = nb_tracks;
6767 for (i = 0; i < s->nb_streams; i++)
6768 if (rtp_hinting_needed(s->streams[i]))
6772 if (mov->nb_meta_tmcd)
6773 tmcd_track = nb_tracks;
6775 for (i = 0; i < s->nb_streams; i++) {
6777 AVStream *st= s->streams[i];
6778 MOVTrack *track= &mov->tracks[i];
6780 /* copy extradata if it exists */
6781 if (st->codecpar->extradata_size) {
6782 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
6783 mov_create_dvd_sub_decoder_specific_info(track, st);
6784 else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
6785 track->vos_len = st->codecpar->extradata_size;
6786 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
6787 if (!track->vos_data) {
6788 return AVERROR(ENOMEM);
6790 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
6791 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6795 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6796 track->par->channel_layout != AV_CH_LAYOUT_MONO)
6799 for (j = 0; j < s->nb_streams; j++) {
6800 AVStream *stj= s->streams[j];
6801 MOVTrack *trackj= &mov->tracks[j];
6805 if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6806 trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
6807 trackj->language != track->language ||
6808 trackj->tag != track->tag
6811 track->multichannel_as_mono++;
6815 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6816 if ((ret = mov_write_identification(pb, s)) < 0)
6820 if (mov->reserved_moov_size){
6821 mov->reserved_header_pos = avio_tell(pb);
6822 if (mov->reserved_moov_size > 0)
6823 avio_skip(pb, mov->reserved_moov_size);
6826 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
6827 /* If no fragmentation options have been set, set a default. */
6828 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
6829 FF_MOV_FLAG_FRAG_CUSTOM |
6830 FF_MOV_FLAG_FRAG_EVERY_FRAME)) &&
6831 !mov->max_fragment_duration && !mov->max_fragment_size)
6832 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
6834 if (mov->flags & FF_MOV_FLAG_FASTSTART)
6835 mov->reserved_header_pos = avio_tell(pb);
6836 mov_write_mdat_tag(pb, mov);
6839 ff_parse_creation_time_metadata(s, &mov->time, 1);
6841 mov->time += 0x7C25B080; // 1970 based -> 1904 based
6843 if (mov->chapter_track)
6844 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6847 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6848 for (i = 0; i < s->nb_streams; i++) {
6849 if (rtp_hinting_needed(s->streams[i])) {
6850 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
6857 if (mov->nb_meta_tmcd) {
6858 const AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata,
6859 "timecode", NULL, 0);
6860 /* Initialize the tmcd tracks */
6861 for (i = 0; i < s->nb_streams; i++) {
6862 AVStream *st = s->streams[i];
6865 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6868 t = av_dict_get(st->metadata, "timecode", NULL, 0);
6871 if (mov_check_timecode_track(s, &tc, i, t->value) < 0)
6873 if ((ret = mov_create_timecode_track(s, tmcd_track, i, tc)) < 0)
6882 if (mov->flags & FF_MOV_FLAG_ISML)
6883 mov_write_isml_manifest(pb, mov, s);
6885 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6886 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6887 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
6889 mov->moov_written = 1;
6890 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
6891 mov->reserved_header_pos = avio_tell(pb);
6897 static int get_moov_size(AVFormatContext *s)
6900 AVIOContext *moov_buf;
6901 MOVMuxContext *mov = s->priv_data;
6903 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
6905 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
6907 return ffio_close_null_buf(moov_buf);
6910 static int get_sidx_size(AVFormatContext *s)
6914 MOVMuxContext *mov = s->priv_data;
6916 if ((ret = ffio_open_null_buf(&buf)) < 0)
6918 mov_write_sidx_tags(buf, mov, -1, 0);
6919 return ffio_close_null_buf(buf);
6923 * This function gets the moov size if moved to the top of the file: the chunk
6924 * offset table can switch between stco (32-bit entries) to co64 (64-bit
6925 * entries) when the moov is moved to the beginning, so the size of the moov
6926 * would change. It also updates the chunk offset tables.
6928 static int compute_moov_size(AVFormatContext *s)
6930 int i, moov_size, moov_size2;
6931 MOVMuxContext *mov = s->priv_data;
6933 moov_size = get_moov_size(s);
6937 for (i = 0; i < mov->nb_streams; i++)
6938 mov->tracks[i].data_offset += moov_size;
6940 moov_size2 = get_moov_size(s);
6944 /* if the size changed, we just switched from stco to co64 and need to
6945 * update the offsets */
6946 if (moov_size2 != moov_size)
6947 for (i = 0; i < mov->nb_streams; i++)
6948 mov->tracks[i].data_offset += moov_size2 - moov_size;
6953 static int compute_sidx_size(AVFormatContext *s)
6956 MOVMuxContext *mov = s->priv_data;
6958 sidx_size = get_sidx_size(s);
6962 for (i = 0; i < mov->nb_streams; i++)
6963 mov->tracks[i].data_offset += sidx_size;
6968 static int shift_data(AVFormatContext *s)
6970 int ret = 0, moov_size;
6971 MOVMuxContext *mov = s->priv_data;
6972 int64_t pos, pos_end;
6973 uint8_t *buf, *read_buf[2];
6974 int read_buf_id = 0;
6976 AVIOContext *read_pb;
6978 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
6979 moov_size = compute_sidx_size(s);
6981 moov_size = compute_moov_size(s);
6985 buf = av_malloc(moov_size * 2);
6987 return AVERROR(ENOMEM);
6989 read_buf[1] = buf + moov_size;
6991 /* Shift the data: the AVIO context of the output can only be used for
6992 * writing, so we re-open the same output, but for reading. It also avoids
6993 * a read/seek/write/seek back and forth. */
6995 ret = s->io_open(s, &read_pb, s->url, AVIO_FLAG_READ, NULL);
6997 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
6998 "the second pass (faststart)\n", s->url);
7002 /* mark the end of the shift to up to the last data we wrote, and get ready
7004 pos_end = avio_tell(s->pb);
7005 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
7007 /* start reading at where the new moov will be placed */
7008 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
7009 pos = avio_tell(read_pb);
7011 #define READ_BLOCK do { \
7012 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
7016 /* shift data by chunk of at most moov_size */
7021 n = read_size[read_buf_id];
7024 avio_write(s->pb, read_buf[read_buf_id], n);
7026 } while (pos < pos_end);
7027 ff_format_io_close(s, &read_pb);
7034 static int mov_write_trailer(AVFormatContext *s)
7036 MOVMuxContext *mov = s->priv_data;
7037 AVIOContext *pb = s->pb;
7042 if (mov->need_rewrite_extradata) {
7043 for (i = 0; i < s->nb_streams; i++) {
7044 MOVTrack *track = &mov->tracks[i];
7045 AVCodecParameters *par = track->par;
7047 track->vos_len = par->extradata_size;
7048 av_freep(&track->vos_data);
7049 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
7050 if (!track->vos_data)
7051 return AVERROR(ENOMEM);
7052 memcpy(track->vos_data, par->extradata, track->vos_len);
7053 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
7055 mov->need_rewrite_extradata = 0;
7059 * Before actually writing the trailer, make sure that there are no
7060 * dangling subtitles, that need a terminating sample.
7062 for (i = 0; i < mov->nb_streams; i++) {
7063 MOVTrack *trk = &mov->tracks[i];
7064 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
7065 !trk->last_sample_is_subtitle_end) {
7066 mov_write_subtitle_end_packet(s, i, trk->track_duration);
7067 trk->last_sample_is_subtitle_end = 1;
7071 // If there were no chapters when the header was written, but there
7072 // are chapters now, write them in the trailer. This only works
7073 // when we are not doing fragments.
7074 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
7075 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
7076 mov->chapter_track = mov->nb_streams++;
7077 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
7082 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
7083 moov_pos = avio_tell(pb);
7085 /* Write size of mdat tag */
7086 if (mov->mdat_size + 8 <= UINT32_MAX) {
7087 avio_seek(pb, mov->mdat_pos, SEEK_SET);
7088 avio_wb32(pb, mov->mdat_size + 8);
7090 /* overwrite 'wide' placeholder atom */
7091 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
7092 /* special value: real atom size will be 64 bit value after
7095 ffio_wfourcc(pb, "mdat");
7096 avio_wb64(pb, mov->mdat_size + 16);
7098 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
7100 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
7101 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
7102 res = shift_data(s);
7105 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
7106 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7108 } else if (mov->reserved_moov_size > 0) {
7110 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7112 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
7114 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
7115 return AVERROR(EINVAL);
7117 avio_wb32(pb, size);
7118 ffio_wfourcc(pb, "free");
7119 ffio_fill(pb, 0, size - 8);
7120 avio_seek(pb, moov_pos, SEEK_SET);
7122 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
7127 mov_auto_flush_fragment(s, 1);
7128 for (i = 0; i < mov->nb_streams; i++)
7129 mov->tracks[i].data_offset = 0;
7130 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
7132 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
7133 res = shift_data(s);
7136 end = avio_tell(pb);
7137 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
7138 mov_write_sidx_tags(pb, mov, -1, 0);
7139 avio_seek(pb, end, SEEK_SET);
7141 if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
7142 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
7143 res = mov_write_mfra_tag(pb, mov);
7152 static int mov_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
7155 AVStream *st = s->streams[pkt->stream_index];
7157 if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
7158 if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
7159 ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
7160 } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
7161 ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
7167 #if CONFIG_TGP_MUXER || CONFIG_TG2_MUXER
7168 static const AVCodecTag codec_3gp_tags[] = {
7169 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
7170 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7171 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7172 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7173 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
7174 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
7175 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7176 { AV_CODEC_ID_NONE, 0 },
7178 static const AVCodecTag *const codec_3gp_tags_list[] = { codec_3gp_tags, NULL };
7181 static const AVCodecTag codec_mp4_tags[] = {
7182 { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
7183 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
7184 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
7185 { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') },
7186 { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') },
7187 { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '4', 'v') },
7188 { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '4', 'v') },
7189 { AV_CODEC_ID_MJPEG, MKTAG('m', 'p', '4', 'v') },
7190 { AV_CODEC_ID_PNG, MKTAG('m', 'p', '4', 'v') },
7191 { AV_CODEC_ID_JPEG2000, MKTAG('m', 'p', '4', 'v') },
7192 { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') },
7193 { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
7194 { AV_CODEC_ID_TSCC2, MKTAG('m', 'p', '4', 'v') },
7195 { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') },
7196 { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') },
7197 { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
7198 { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
7199 { AV_CODEC_ID_MP4ALS, MKTAG('m', 'p', '4', 'a') },
7200 { AV_CODEC_ID_MP3, MKTAG('m', 'p', '4', 'a') },
7201 { AV_CODEC_ID_MP2, MKTAG('m', 'p', '4', 'a') },
7202 { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') },
7203 { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') },
7204 { AV_CODEC_ID_DTS, MKTAG('m', 'p', '4', 'a') },
7205 { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') },
7206 { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') },
7207 { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') },
7208 { AV_CODEC_ID_VORBIS, MKTAG('m', 'p', '4', 'a') },
7209 { AV_CODEC_ID_QCELP, MKTAG('m', 'p', '4', 'a') },
7210 { AV_CODEC_ID_EVRC, MKTAG('m', 'p', '4', 'a') },
7211 { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') },
7212 { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
7213 { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
7214 { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') },
7215 { AV_CODEC_ID_NONE, 0 },
7217 #if CONFIG_MP4_MUXER || CONFIG_PSP_MUXER
7218 static const AVCodecTag *const mp4_codec_tags_list[] = { codec_mp4_tags, NULL };
7221 static const AVCodecTag codec_ism_tags[] = {
7222 { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') },
7223 { AV_CODEC_ID_NONE , 0 },
7226 static const AVCodecTag codec_ipod_tags[] = {
7227 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7228 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7229 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7230 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
7231 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
7232 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7233 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
7234 { AV_CODEC_ID_NONE, 0 },
7237 static const AVCodecTag codec_f4v_tags[] = {
7238 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
7239 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7240 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7241 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
7242 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
7243 { AV_CODEC_ID_NONE, 0 },
7246 #if CONFIG_MOV_MUXER
7248 AVOutputFormat ff_mov_muxer = {
7250 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
7251 .extensions = "mov",
7252 .priv_data_size = sizeof(MOVMuxContext),
7253 .audio_codec = AV_CODEC_ID_AAC,
7254 .video_codec = CONFIG_LIBX264_ENCODER ?
7255 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7257 .write_header = mov_write_header,
7258 .write_packet = mov_write_packet,
7259 .write_trailer = mov_write_trailer,
7261 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7262 .codec_tag = (const AVCodecTag* const []){
7263 ff_codec_movvideo_tags, ff_codec_movaudio_tags, ff_codec_movsubtitle_tags, 0
7265 .check_bitstream = mov_check_bitstream,
7266 .priv_class = &mov_muxer_class,
7269 #if CONFIG_TGP_MUXER
7271 AVOutputFormat ff_tgp_muxer = {
7273 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
7274 .extensions = "3gp",
7275 .priv_data_size = sizeof(MOVMuxContext),
7276 .audio_codec = AV_CODEC_ID_AMR_NB,
7277 .video_codec = AV_CODEC_ID_H263,
7279 .write_header = mov_write_header,
7280 .write_packet = mov_write_packet,
7281 .write_trailer = mov_write_trailer,
7283 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7284 .codec_tag = codec_3gp_tags_list,
7285 .check_bitstream = mov_check_bitstream,
7286 .priv_class = &tgp_muxer_class,
7289 #if CONFIG_MP4_MUXER
7291 AVOutputFormat ff_mp4_muxer = {
7293 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
7294 .mime_type = "video/mp4",
7295 .extensions = "mp4",
7296 .priv_data_size = sizeof(MOVMuxContext),
7297 .audio_codec = AV_CODEC_ID_AAC,
7298 .video_codec = CONFIG_LIBX264_ENCODER ?
7299 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7301 .write_header = mov_write_header,
7302 .write_packet = mov_write_packet,
7303 .write_trailer = mov_write_trailer,
7305 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7306 .codec_tag = mp4_codec_tags_list,
7307 .check_bitstream = mov_check_bitstream,
7308 .priv_class = &mp4_muxer_class,
7311 #if CONFIG_PSP_MUXER
7313 AVOutputFormat ff_psp_muxer = {
7315 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
7316 .extensions = "mp4,psp",
7317 .priv_data_size = sizeof(MOVMuxContext),
7318 .audio_codec = AV_CODEC_ID_AAC,
7319 .video_codec = CONFIG_LIBX264_ENCODER ?
7320 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7322 .write_header = mov_write_header,
7323 .write_packet = mov_write_packet,
7324 .write_trailer = mov_write_trailer,
7326 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7327 .codec_tag = mp4_codec_tags_list,
7328 .check_bitstream = mov_check_bitstream,
7329 .priv_class = &psp_muxer_class,
7332 #if CONFIG_TG2_MUXER
7334 AVOutputFormat ff_tg2_muxer = {
7336 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
7337 .extensions = "3g2",
7338 .priv_data_size = sizeof(MOVMuxContext),
7339 .audio_codec = AV_CODEC_ID_AMR_NB,
7340 .video_codec = AV_CODEC_ID_H263,
7342 .write_header = mov_write_header,
7343 .write_packet = mov_write_packet,
7344 .write_trailer = mov_write_trailer,
7346 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7347 .codec_tag = codec_3gp_tags_list,
7348 .check_bitstream = mov_check_bitstream,
7349 .priv_class = &tg2_muxer_class,
7352 #if CONFIG_IPOD_MUXER
7354 AVOutputFormat ff_ipod_muxer = {
7356 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
7357 .mime_type = "video/mp4",
7358 .extensions = "m4v,m4a,m4b",
7359 .priv_data_size = sizeof(MOVMuxContext),
7360 .audio_codec = AV_CODEC_ID_AAC,
7361 .video_codec = AV_CODEC_ID_H264,
7363 .write_header = mov_write_header,
7364 .write_packet = mov_write_packet,
7365 .write_trailer = mov_write_trailer,
7367 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7368 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
7369 .check_bitstream = mov_check_bitstream,
7370 .priv_class = &ipod_muxer_class,
7373 #if CONFIG_ISMV_MUXER
7375 AVOutputFormat ff_ismv_muxer = {
7377 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
7378 .mime_type = "video/mp4",
7379 .extensions = "ismv,isma",
7380 .priv_data_size = sizeof(MOVMuxContext),
7381 .audio_codec = AV_CODEC_ID_AAC,
7382 .video_codec = AV_CODEC_ID_H264,
7384 .write_header = mov_write_header,
7385 .write_packet = mov_write_packet,
7386 .write_trailer = mov_write_trailer,
7388 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7389 .codec_tag = (const AVCodecTag* const []){
7390 codec_mp4_tags, codec_ism_tags, 0 },
7391 .check_bitstream = mov_check_bitstream,
7392 .priv_class = &ismv_muxer_class,
7395 #if CONFIG_F4V_MUXER
7397 AVOutputFormat ff_f4v_muxer = {
7399 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
7400 .mime_type = "application/f4v",
7401 .extensions = "f4v",
7402 .priv_data_size = sizeof(MOVMuxContext),
7403 .audio_codec = AV_CODEC_ID_AAC,
7404 .video_codec = AV_CODEC_ID_H264,
7406 .write_header = mov_write_header,
7407 .write_packet = mov_write_packet,
7408 .write_trailer = mov_write_trailer,
7410 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
7411 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
7412 .check_bitstream = mov_check_bitstream,
7413 .priv_class = &f4v_muxer_class,