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avcodec/x86/pngdsp: add missing emms at the end of add_png_paeth_prediction
[ffmpeg.git] / libavformat / movenc.c
1 /*
2 * MOV, 3GP, MP4 muxer
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>
6 *
7 * This file is part of FFmpeg.
8 *
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.
13 *
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.
18 *
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
22 */
23
24 #include <stdint.h>
25 #include <inttypes.h>
26
27 #include "movenc.h"
28 #include "avformat.h"
29 #include "avio_internal.h"
30 #include "riff.h"
31 #include "avio.h"
32 #include "isom.h"
33 #include "av1.h"
34 #include "avc.h"
35 #include "libavcodec/ac3_parser_internal.h"
36 #include "libavcodec/dnxhddata.h"
37 #include "libavcodec/flac.h"
38 #include "libavcodec/get_bits.h"
39
40 #include "libavcodec/internal.h"
41 #include "libavcodec/put_bits.h"
42 #include "libavcodec/vc1_common.h"
43 #include "libavcodec/raw.h"
44 #include "internal.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"
56 #include "hevc.h"
57 #include "rtpenc.h"
58 #include "mov_chan.h"
59 #include "vpcc.h"
60
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 (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},
110 { NULL },
111 };
112
113 #define MOV_CLASS(flavor)\
114 static const AVClass flavor ## _muxer_class = {\
115 .class_name = #flavor " muxer",\
116 .item_name = av_default_item_name,\
117 .option = options,\
118 .version = LIBAVUTIL_VERSION_INT,\
119 };
120
121 static int get_moov_size(AVFormatContext *s);
122
123 static int utf8len(const uint8_t *b)
124 {
125 int len = 0;
126 int val;
127 while (*b) {
128 GET_UTF8(val, *b++, return -1;)
129 len++;
130 }
131 return len;
132 }
133
134 //FIXME support 64 bit variant with wide placeholders
135 static int64_t update_size(AVIOContext *pb, int64_t pos)
136 {
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);
141
142 return curpos - pos;
143 }
144
145 static int co64_required(const MOVTrack *track)
146 {
147 if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
148 return 1;
149 return 0;
150 }
151
152 static int is_cover_image(const AVStream *st)
153 {
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;
157 }
158
159 static int rtp_hinting_needed(const AVStream *st)
160 {
161 /* Add hint tracks for each real audio and video stream */
162 if (is_cover_image(st))
163 return 0;
164 return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
165 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO;
166 }
167
168 /* Chunk offset atom */
169 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
170 {
171 int i;
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 */
175 if (mode64)
176 ffio_wfourcc(pb, "co64");
177 else
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)
183 continue;
184 if (mode64 == 1)
185 avio_wb64(pb, track->cluster[i].pos + track->data_offset);
186 else
187 avio_wb32(pb, track->cluster[i].pos + track->data_offset);
188 }
189 return update_size(pb, pos);
190 }
191
192 /* Sample size atom */
193 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
194 {
195 int equalChunks = 1;
196 int i, j, entries = 0, tst = -1, oldtst = -1;
197
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 */
202
203 for (i = 0; i < track->entry; i++) {
204 tst = track->cluster[i].size / track->cluster[i].entries;
205 if (oldtst != -1 && tst != oldtst)
206 equalChunks = 0;
207 oldtst = tst;
208 entries += track->cluster[i].entries;
209 }
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
215 } else {
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);
222 }
223 }
224 }
225 return update_size(pb, pos);
226 }
227
228 /* Sample to chunk atom */
229 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
230 {
231 int index = 0, oldval = -1, i;
232 int64_t entryPos, curpos;
233
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;
246 index++;
247 }
248 }
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);
253
254 return update_size(pb, pos);
255 }
256
257 /* Sync sample atom */
258 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
259 {
260 int64_t curpos, entryPos;
261 int i, index = 0;
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);
271 index++;
272 }
273 }
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);
279 }
280
281 /* Sample dependency atom */
282 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
283 {
284 int i;
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;
295 }
296 if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
297 dependent = MOV_SAMPLE_DEPENDENCY_NO;
298 }
299 avio_w8(pb, (leading << 6) | (dependent << 4) |
300 (reference << 2) | redundancy);
301 }
302 return update_size(pb, pos);
303 }
304
305 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
306 {
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 */
312
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 */
316 return 0x11;
317 }
318
319 static int mov_write_ac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
320 {
321 GetBitContext gbc;
322 PutBitContext pbc;
323 uint8_t buf[3];
324 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
325
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);
331 }
332
333 avio_wb32(pb, 11);
334 ffio_wfourcc(pb, "dac3");
335
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);
342 if (acmod == 2) {
343 skip_bits(&gbc, 2); // dsurmod
344 } else {
345 if ((acmod & 1) && acmod != 1)
346 skip_bits(&gbc, 2); // cmixlev
347 if (acmod & 4)
348 skip_bits(&gbc, 2); // surmixlev
349 }
350 lfeon = get_bits1(&gbc);
351
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
360
361 flush_put_bits(&pbc);
362 avio_write(pb, buf, sizeof(buf));
363
364 return 11;
365 }
366
367 struct eac3_info {
368 AVPacket pkt;
369 uint8_t ec3_done;
370 uint8_t num_blocks;
371
372 /* Layout of the EC3SpecificBox */
373 /* maximum bitrate */
374 uint16_t data_rate;
375 /* number of independent substreams */
376 uint8_t num_ind_sub;
377 struct {
378 /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
379 uint8_t fscod;
380 /* bit stream identification 5 bits */
381 uint8_t bsid;
382 /* one bit reserved */
383 /* audio service mixing (not supported yet) 1 bit */
384 /* bit stream mode 3 bits */
385 uint8_t bsmod;
386 /* audio coding mode 3 bits */
387 uint8_t acmod;
388 /* sub woofer on 1 bit */
389 uint8_t lfeon;
390 /* 3 bits reserved */
391 /* number of dependent substreams associated with this substream 4 bits */
392 uint8_t num_dep_sub;
393 /* channel locations of the dependent substream(s), if any, 9 bits */
394 uint16_t chan_loc;
395 /* if there is no dependent substream, then one bit reserved instead */
396 } substream[1]; /* TODO: support 8 independent substreams */
397 };
398
399 #if CONFIG_AC3_PARSER
400 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
401 {
402 AC3HeaderInfo *hdr = NULL;
403 struct eac3_info *info;
404 int num_blocks, ret;
405
406 if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
407 return AVERROR(ENOMEM);
408 info = track->eac3_priv;
409
410 if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) < 0) {
411 /* drop the packets until we see a good one */
412 if (!track->entry) {
413 av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
414 ret = 0;
415 } else
416 ret = AVERROR_INVALIDDATA;
417 goto end;
418 }
419
420 info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
421 num_blocks = hdr->num_blocks;
422
423 if (!info->ec3_done) {
424 /* AC-3 substream must be the first one */
425 if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
426 ret = AVERROR(EINVAL);
427 goto end;
428 }
429
430 /* this should always be the case, given that our AC-3 parser
431 * concatenates dependent frames to their independent parent */
432 if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
433 /* substream ids must be incremental */
434 if (hdr->substreamid > info->num_ind_sub + 1) {
435 ret = AVERROR(EINVAL);
436 goto end;
437 }
438
439 if (hdr->substreamid == info->num_ind_sub + 1) {
440 //info->num_ind_sub++;
441 avpriv_request_sample(mov->fc, "Multiple independent substreams");
442 ret = AVERROR_PATCHWELCOME;
443 goto end;
444 } else if (hdr->substreamid < info->num_ind_sub ||
445 hdr->substreamid == 0 && info->substream[0].bsid) {
446 info->ec3_done = 1;
447 goto concatenate;
448 }
449 } else {
450 if (hdr->substreamid != 0) {
451 avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
452 ret = AVERROR_PATCHWELCOME;
453 goto end;
454 }
455 }
456
457 /* fill the info needed for the "dec3" atom */
458 info->substream[hdr->substreamid].fscod = hdr->sr_code;
459 info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
460 info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
461 info->substream[hdr->substreamid].acmod = hdr->channel_mode;
462 info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
463
464 /* Parse dependent substream(s), if any */
465 if (pkt->size != hdr->frame_size) {
466 int cumul_size = hdr->frame_size;
467 int parent = hdr->substreamid;
468
469 while (cumul_size != pkt->size) {
470 GetBitContext gbc;
471 int i;
472 ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
473 if (ret < 0)
474 goto end;
475 if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT) {
476 ret = AVERROR(EINVAL);
477 goto end;
478 }
479 info->substream[parent].num_dep_sub++;
480 ret /= 8;
481
482 /* header is parsed up to lfeon, but custom channel map may be needed */
483 init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
484 /* skip bsid */
485 skip_bits(&gbc, 5);
486 /* skip volume control params */
487 for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
488 skip_bits(&gbc, 5); // skip dialog normalization
489 if (get_bits1(&gbc)) {
490 skip_bits(&gbc, 8); // skip compression gain word
491 }
492 }
493 /* get the dependent stream channel map, if exists */
494 if (get_bits1(&gbc))
495 info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
496 else
497 info->substream[parent].chan_loc |= hdr->channel_mode;
498 cumul_size += hdr->frame_size;
499 }
500 }
501 }
502
503 concatenate:
504 if (!info->num_blocks && num_blocks == 6) {
505 ret = pkt->size;
506 goto end;
507 }
508 else if (info->num_blocks + num_blocks > 6) {
509 ret = AVERROR_INVALIDDATA;
510 goto end;
511 }
512
513 if (!info->num_blocks) {
514 ret = av_packet_ref(&info->pkt, pkt);
515 if (!ret)
516 info->num_blocks = num_blocks;
517 goto end;
518 } else {
519 if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
520 goto end;
521 memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
522 info->num_blocks += num_blocks;
523 info->pkt.duration += pkt->duration;
524 if (info->num_blocks != 6)
525 goto end;
526 av_packet_unref(pkt);
527 av_packet_move_ref(pkt, &info->pkt);
528 info->num_blocks = 0;
529 }
530 ret = pkt->size;
531
532 end:
533 av_free(hdr);
534
535 return ret;
536 }
537 #endif
538
539 static int mov_write_eac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
540 {
541 PutBitContext pbc;
542 uint8_t *buf;
543 struct eac3_info *info;
544 int size, i;
545
546 if (!track->eac3_priv) {
547 av_log(s, AV_LOG_ERROR,
548 "Cannot write moov atom before EAC3 packets parsed.\n");
549 return AVERROR(EINVAL);
550 }
551
552 info = track->eac3_priv;
553 size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
554 buf = av_malloc(size);
555 if (!buf) {
556 return AVERROR(ENOMEM);
557 }
558
559 init_put_bits(&pbc, buf, size);
560 put_bits(&pbc, 13, info->data_rate);
561 put_bits(&pbc, 3, info->num_ind_sub);
562 for (i = 0; i <= info->num_ind_sub; i++) {
563 put_bits(&pbc, 2, info->substream[i].fscod);
564 put_bits(&pbc, 5, info->substream[i].bsid);
565 put_bits(&pbc, 1, 0); /* reserved */
566 put_bits(&pbc, 1, 0); /* asvc */
567 put_bits(&pbc, 3, info->substream[i].bsmod);
568 put_bits(&pbc, 3, info->substream[i].acmod);
569 put_bits(&pbc, 1, info->substream[i].lfeon);
570 put_bits(&pbc, 5, 0); /* reserved */
571 put_bits(&pbc, 4, info->substream[i].num_dep_sub);
572 if (!info->substream[i].num_dep_sub) {
573 put_bits(&pbc, 1, 0); /* reserved */
574 } else {
575 put_bits(&pbc, 9, info->substream[i].chan_loc);
576 }
577 }
578 flush_put_bits(&pbc);
579 size = put_bits_count(&pbc) >> 3;
580
581 avio_wb32(pb, size + 8);
582 ffio_wfourcc(pb, "dec3");
583 avio_write(pb, buf, size);
584
585 av_free(buf);
586
587 return size;
588 }
589
590 /**
591 * This function writes extradata "as is".
592 * Extradata must be formatted like a valid atom (with size and tag).
593 */
594 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
595 {
596 avio_write(pb, track->par->extradata, track->par->extradata_size);
597 return track->par->extradata_size;
598 }
599
600 static int mov_write_enda_tag(AVIOContext *pb)
601 {
602 avio_wb32(pb, 10);
603 ffio_wfourcc(pb, "enda");
604 avio_wb16(pb, 1); /* little endian */
605 return 10;
606 }
607
608 static int mov_write_enda_tag_be(AVIOContext *pb)
609 {
610 avio_wb32(pb, 10);
611 ffio_wfourcc(pb, "enda");
612 avio_wb16(pb, 0); /* big endian */
613 return 10;
614 }
615
616 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
617 {
618 int i = 3;
619 avio_w8(pb, tag);
620 for (; i > 0; i--)
621 avio_w8(pb, (size >> (7 * i)) | 0x80);
622 avio_w8(pb, size & 0x7F);
623 }
624
625 static unsigned compute_avg_bitrate(MOVTrack *track)
626 {
627 uint64_t size = 0;
628 int i;
629 if (!track->track_duration)
630 return 0;
631 for (i = 0; i < track->entry; i++)
632 size += track->cluster[i].size;
633 return size * 8 * track->timescale / track->track_duration;
634 }
635
636 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
637 {
638 AVCPBProperties *props;
639 int64_t pos = avio_tell(pb);
640 int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
641 unsigned avg_bitrate;
642
643 avio_wb32(pb, 0); // size
644 ffio_wfourcc(pb, "esds");
645 avio_wb32(pb, 0); // Version
646
647 // ES descriptor
648 put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
649 avio_wb16(pb, track->track_id);
650 avio_w8(pb, 0x00); // flags (= no flags)
651
652 // DecoderConfig descriptor
653 put_descr(pb, 0x04, 13 + decoder_specific_info_len);
654
655 // Object type indication
656 if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
657 track->par->codec_id == AV_CODEC_ID_MP3) &&
658 track->par->sample_rate > 24000)
659 avio_w8(pb, 0x6B); // 11172-3
660 else
661 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id));
662
663 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
664 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
665 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
666 avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
667 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
668 avio_w8(pb, 0x15); // flags (= Audiostream)
669 else
670 avio_w8(pb, 0x11); // flags (= Visualstream)
671
672 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
673 NULL);
674
675 avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
676
677 avg_bitrate = compute_avg_bitrate(track);
678 avio_wb32(pb, props ? FFMAX3(props->max_bitrate, props->avg_bitrate, avg_bitrate) : FFMAX(track->par->bit_rate, avg_bitrate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
679 avio_wb32(pb, avg_bitrate);
680
681 if (track->vos_len) {
682 // DecoderSpecific info descriptor
683 put_descr(pb, 0x05, track->vos_len);
684 avio_write(pb, track->vos_data, track->vos_len);
685 }
686
687 // SL descriptor
688 put_descr(pb, 0x06, 1);
689 avio_w8(pb, 0x02);
690 return update_size(pb, pos);
691 }
692
693 static int mov_pcm_le_gt16(enum AVCodecID codec_id)
694 {
695 return codec_id == AV_CODEC_ID_PCM_S24LE ||
696 codec_id == AV_CODEC_ID_PCM_S32LE ||
697 codec_id == AV_CODEC_ID_PCM_F32LE ||
698 codec_id == AV_CODEC_ID_PCM_F64LE;
699 }
700
701 static int mov_pcm_be_gt16(enum AVCodecID codec_id)
702 {
703 return codec_id == AV_CODEC_ID_PCM_S24BE ||
704 codec_id == AV_CODEC_ID_PCM_S32BE ||
705 codec_id == AV_CODEC_ID_PCM_F32BE ||
706 codec_id == AV_CODEC_ID_PCM_F64BE;
707 }
708
709 static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
710 {
711 int ret;
712 int64_t pos = avio_tell(pb);
713 avio_wb32(pb, 0);
714 avio_wl32(pb, track->tag); // store it byteswapped
715 track->par->codec_tag = av_bswap16(track->tag >> 16);
716 if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
717 return ret;
718 return update_size(pb, pos);
719 }
720
721 static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
722 {
723 int ret;
724 int64_t pos = avio_tell(pb);
725 avio_wb32(pb, 0);
726 ffio_wfourcc(pb, "wfex");
727 if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
728 return ret;
729 return update_size(pb, pos);
730 }
731
732 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
733 {
734 int64_t pos = avio_tell(pb);
735 avio_wb32(pb, 0);
736 ffio_wfourcc(pb, "dfLa");
737 avio_w8(pb, 0); /* version */
738 avio_wb24(pb, 0); /* flags */
739
740 /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
741 if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
742 return AVERROR_INVALIDDATA;
743
744 /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
745 avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
746 avio_wb24(pb, track->par->extradata_size); /* Length */
747 avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
748
749 return update_size(pb, pos);
750 }
751
752 static int mov_write_dops_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
753 {
754 int64_t pos = avio_tell(pb);
755 avio_wb32(pb, 0);
756 ffio_wfourcc(pb, "dOps");
757 avio_w8(pb, 0); /* Version */
758 if (track->par->extradata_size < 19) {
759 av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
760 return AVERROR_INVALIDDATA;
761 }
762 /* extradata contains an Ogg OpusHead, other than byte-ordering and
763 OpusHead's preceeding magic/version, OpusSpecificBox is currently
764 identical. */
765 avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
766 avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
767 avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
768 avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
769 /* Write the rest of the header out without byte-swapping. */
770 avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
771
772 return update_size(pb, pos);
773 }
774
775 static int mov_write_dmlp_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
776 {
777 int64_t pos = avio_tell(pb);
778 int length;
779 avio_wb32(pb, 0);
780 ffio_wfourcc(pb, "dmlp");
781
782 if (track->vos_len < 20) {
783 av_log(s, AV_LOG_ERROR,
784 "Cannot write moov atom before TrueHD packets."
785 " Set the delay_moov flag to fix this.\n");
786 return AVERROR(EINVAL);
787 }
788
789 length = (AV_RB16(track->vos_data) & 0xFFF) * 2;
790 if (length < 20 || length > track->vos_len)
791 return AVERROR_INVALIDDATA;
792
793 // Only TrueHD is supported
794 if (AV_RB32(track->vos_data + 4) != 0xF8726FBA)
795 return AVERROR_INVALIDDATA;
796
797 avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */
798 avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */
799 avio_wb32(pb, 0); /* reserved */
800
801 return update_size(pb, pos);
802 }
803
804 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
805 {
806 uint32_t layout_tag, bitmap;
807 int64_t pos = avio_tell(pb);
808
809 layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
810 track->par->channel_layout,
811 &bitmap);
812 if (!layout_tag) {
813 av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
814 "lack of channel information\n");
815 return 0;
816 }
817
818 if (track->multichannel_as_mono)
819 return 0;
820
821 avio_wb32(pb, 0); // Size
822 ffio_wfourcc(pb, "chan"); // Type
823 avio_w8(pb, 0); // Version
824 avio_wb24(pb, 0); // Flags
825 avio_wb32(pb, layout_tag); // mChannelLayoutTag
826 avio_wb32(pb, bitmap); // mChannelBitmap
827 avio_wb32(pb, 0); // mNumberChannelDescriptions
828
829 return update_size(pb, pos);
830 }
831
832 static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
833 {
834 int64_t pos = avio_tell(pb);
835
836 avio_wb32(pb, 0); /* size */
837 ffio_wfourcc(pb, "wave");
838
839 if (track->par->codec_id != AV_CODEC_ID_QDM2) {
840 avio_wb32(pb, 12); /* size */
841 ffio_wfourcc(pb, "frma");
842 avio_wl32(pb, track->tag);
843 }
844
845 if (track->par->codec_id == AV_CODEC_ID_AAC) {
846 /* useless atom needed by mplayer, ipod, not needed by quicktime */
847 avio_wb32(pb, 12); /* size */
848 ffio_wfourcc(pb, "mp4a");
849 avio_wb32(pb, 0);
850 mov_write_esds_tag(pb, track);
851 } else if (mov_pcm_le_gt16(track->par->codec_id)) {
852 mov_write_enda_tag(pb);
853 } else if (mov_pcm_be_gt16(track->par->codec_id)) {
854 mov_write_enda_tag_be(pb);
855 } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
856 mov_write_amr_tag(pb, track);
857 } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
858 mov_write_ac3_tag(s, pb, track);
859 } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
860 mov_write_eac3_tag(s, pb, track);
861 } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
862 track->par->codec_id == AV_CODEC_ID_QDM2) {
863 mov_write_extradata_tag(pb, track);
864 } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
865 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
866 mov_write_ms_tag(s, pb, track);
867 }
868
869 avio_wb32(pb, 8); /* size */
870 avio_wb32(pb, 0); /* null tag */
871
872 return update_size(pb, pos);
873 }
874
875 static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
876 {
877 uint8_t *unescaped;
878 const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
879 int unescaped_size, seq_found = 0;
880 int level = 0, interlace = 0;
881 int packet_seq = track->vc1_info.packet_seq;
882 int packet_entry = track->vc1_info.packet_entry;
883 int slices = track->vc1_info.slices;
884 PutBitContext pbc;
885
886 if (track->start_dts == AV_NOPTS_VALUE) {
887 /* No packets written yet, vc1_info isn't authoritative yet. */
888 /* Assume inline sequence and entry headers. */
889 packet_seq = packet_entry = 1;
890 av_log(NULL, AV_LOG_WARNING,
891 "moov atom written before any packets, unable to write correct "
892 "dvc1 atom. Set the delay_moov flag to fix this.\n");
893 }
894
895 unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
896 if (!unescaped)
897 return AVERROR(ENOMEM);
898 start = find_next_marker(track->vos_data, end);
899 for (next = start; next < end; start = next) {
900 GetBitContext gb;
901 int size;
902 next = find_next_marker(start + 4, end);
903 size = next - start - 4;
904 if (size <= 0)
905 continue;
906 unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
907 init_get_bits(&gb, unescaped, 8 * unescaped_size);
908 if (AV_RB32(start) == VC1_CODE_SEQHDR) {
909 int profile = get_bits(&gb, 2);
910 if (profile != PROFILE_ADVANCED) {
911 av_free(unescaped);
912 return AVERROR(ENOSYS);
913 }
914 seq_found = 1;
915 level = get_bits(&gb, 3);
916 /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
917 * width, height */
918 skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
919 skip_bits(&gb, 1); /* broadcast */
920 interlace = get_bits1(&gb);
921 skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
922 }
923 }
924 if (!seq_found) {
925 av_free(unescaped);
926 return AVERROR(ENOSYS);
927 }
928
929 init_put_bits(&pbc, buf, 7);
930 /* VC1DecSpecStruc */
931 put_bits(&pbc, 4, 12); /* profile - advanced */
932 put_bits(&pbc, 3, level);
933 put_bits(&pbc, 1, 0); /* reserved */
934 /* VC1AdvDecSpecStruc */
935 put_bits(&pbc, 3, level);
936 put_bits(&pbc, 1, 0); /* cbr */
937 put_bits(&pbc, 6, 0); /* reserved */
938 put_bits(&pbc, 1, !interlace); /* no interlace */
939 put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
940 put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
941 put_bits(&pbc, 1, !slices); /* no slice code */
942 put_bits(&pbc, 1, 0); /* no bframe */
943 put_bits(&pbc, 1, 0); /* reserved */
944
945 /* framerate */
946 if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
947 put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
948 else
949 put_bits32(&pbc, 0xffffffff);
950
951 flush_put_bits(&pbc);
952
953 av_free(unescaped);
954
955 return 0;
956 }
957
958 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
959 {
960 uint8_t buf[7] = { 0 };
961 int ret;
962
963 if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
964 return ret;
965
966 avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
967 ffio_wfourcc(pb, "dvc1");
968 avio_write(pb, buf, sizeof(buf));
969 avio_write(pb, track->vos_data, track->vos_len);
970
971 return 0;
972 }
973
974 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
975 {
976 avio_wb32(pb, track->vos_len + 8);
977 ffio_wfourcc(pb, "glbl");
978 avio_write(pb, track->vos_data, track->vos_len);
979 return 8 + track->vos_len;
980 }
981
982 /**
983 * Compute flags for 'lpcm' tag.
984 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
985 */
986 static int mov_get_lpcm_flags(enum AVCodecID codec_id)
987 {
988 switch (codec_id) {
989 case AV_CODEC_ID_PCM_F32BE:
990 case AV_CODEC_ID_PCM_F64BE:
991 return 11;
992 case AV_CODEC_ID_PCM_F32LE:
993 case AV_CODEC_ID_PCM_F64LE:
994 return 9;
995 case AV_CODEC_ID_PCM_U8:
996 return 10;
997 case AV_CODEC_ID_PCM_S16BE:
998 case AV_CODEC_ID_PCM_S24BE:
999 case AV_CODEC_ID_PCM_S32BE:
1000 return 14;
1001 case AV_CODEC_ID_PCM_S8:
1002 case AV_CODEC_ID_PCM_S16LE:
1003 case AV_CODEC_ID_PCM_S24LE:
1004 case AV_CODEC_ID_PCM_S32LE:
1005 return 12;
1006 default:
1007 return 0;
1008 }
1009 }
1010
1011 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
1012 {
1013 int64_t next_dts;
1014
1015 if (cluster_idx >= track->entry)
1016 return 0;
1017
1018 if (cluster_idx + 1 == track->entry)
1019 next_dts = track->track_duration + track->start_dts;
1020 else
1021 next_dts = track->cluster[cluster_idx + 1].dts;
1022
1023 next_dts -= track->cluster[cluster_idx].dts;
1024
1025 av_assert0(next_dts >= 0);
1026 av_assert0(next_dts <= INT_MAX);
1027
1028 return next_dts;
1029 }
1030
1031 static int get_samples_per_packet(MOVTrack *track)
1032 {
1033 int i, first_duration;
1034
1035 // return track->par->frame_size;
1036
1037 /* use 1 for raw PCM */
1038 if (!track->audio_vbr)
1039 return 1;
1040
1041 /* check to see if duration is constant for all clusters */
1042 if (!track->entry)
1043 return 0;
1044 first_duration = get_cluster_duration(track, 0);
1045 for (i = 1; i < track->entry; i++) {
1046 if (get_cluster_duration(track, i) != first_duration)
1047 return 0;
1048 }
1049 return first_duration;
1050 }
1051
1052 static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
1053 {
1054 int64_t pos = avio_tell(pb);
1055 int version = 0;
1056 uint32_t tag = track->tag;
1057 int ret = 0;
1058
1059 if (track->mode == MODE_MOV) {
1060 if (track->timescale > UINT16_MAX || !track->par->channels) {
1061 if (mov_get_lpcm_flags(track->par->codec_id))
1062 tag = AV_RL32("lpcm");
1063 version = 2;
1064 } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1065 mov_pcm_be_gt16(track->par->codec_id) ||
1066 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1067 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1068 track->par->codec_id == AV_CODEC_ID_QDM2) {
1069 version = 1;
1070 }
1071 }
1072
1073 avio_wb32(pb, 0); /* size */
1074 if (mov->encryption_scheme != MOV_ENC_NONE) {
1075 ffio_wfourcc(pb, "enca");
1076 } else {
1077 avio_wl32(pb, tag); // store it byteswapped
1078 }
1079 avio_wb32(pb, 0); /* Reserved */
1080 avio_wb16(pb, 0); /* Reserved */
1081 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1082
1083 /* SoundDescription */
1084 avio_wb16(pb, version); /* Version */
1085 avio_wb16(pb, 0); /* Revision level */
1086 avio_wb32(pb, 0); /* Reserved */
1087
1088 if (version == 2) {
1089 avio_wb16(pb, 3);
1090 avio_wb16(pb, 16);
1091 avio_wb16(pb, 0xfffe);
1092 avio_wb16(pb, 0);
1093 avio_wb32(pb, 0x00010000);
1094 avio_wb32(pb, 72);
1095 avio_wb64(pb, av_double2int(track->par->sample_rate));
1096 avio_wb32(pb, track->par->channels);
1097 avio_wb32(pb, 0x7F000000);
1098 avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id));
1099 avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1100 avio_wb32(pb, track->sample_size);
1101 avio_wb32(pb, get_samples_per_packet(track));
1102 } else {
1103 if (track->mode == MODE_MOV) {
1104 avio_wb16(pb, track->par->channels);
1105 if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1106 track->par->codec_id == AV_CODEC_ID_PCM_S8)
1107 avio_wb16(pb, 8); /* bits per sample */
1108 else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1109 avio_wb16(pb, track->par->bits_per_coded_sample);
1110 else
1111 avio_wb16(pb, 16);
1112 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1113 } else { /* reserved for mp4/3gp */
1114 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1115 track->par->codec_id == AV_CODEC_ID_ALAC ||
1116 track->par->codec_id == AV_CODEC_ID_OPUS) {
1117 avio_wb16(pb, track->par->channels);
1118 } else {
1119 avio_wb16(pb, 2);
1120 }
1121 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1122 track->par->codec_id == AV_CODEC_ID_ALAC) {
1123 avio_wb16(pb, track->par->bits_per_raw_sample);
1124 } else {
1125 avio_wb16(pb, 16);
1126 }
1127 avio_wb16(pb, 0);
1128 }
1129
1130 avio_wb16(pb, 0); /* packet size (= 0) */
1131 if (track->par->codec_id == AV_CODEC_ID_OPUS)
1132 avio_wb16(pb, 48000);
1133 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1134 avio_wb32(pb, track->par->sample_rate);
1135 else
1136 avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1137 track->par->sample_rate : 0);
1138
1139 if (track->par->codec_id != AV_CODEC_ID_TRUEHD)
1140 avio_wb16(pb, 0); /* Reserved */
1141 }
1142
1143 if (version == 1) { /* SoundDescription V1 extended info */
1144 if (mov_pcm_le_gt16(track->par->codec_id) ||
1145 mov_pcm_be_gt16(track->par->codec_id))
1146 avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1147 else
1148 avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1149 avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1150 avio_wb32(pb, track->sample_size); /* Bytes per frame */
1151 avio_wb32(pb, 2); /* Bytes per sample */
1152 }
1153
1154 if (track->mode == MODE_MOV &&
1155 (track->par->codec_id == AV_CODEC_ID_AAC ||
1156 track->par->codec_id == AV_CODEC_ID_AC3 ||
1157 track->par->codec_id == AV_CODEC_ID_EAC3 ||
1158 track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1159 track->par->codec_id == AV_CODEC_ID_ALAC ||
1160 track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1161 track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1162 track->par->codec_id == AV_CODEC_ID_QDM2 ||
1163 (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1164 (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1165 ret = mov_write_wave_tag(s, pb, track);
1166 else if (track->tag == MKTAG('m','p','4','a'))
1167 ret = mov_write_esds_tag(pb, track);
1168 else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1169 ret = mov_write_amr_tag(pb, track);
1170 else if (track->par->codec_id == AV_CODEC_ID_AC3)
1171 ret = mov_write_ac3_tag(s, pb, track);
1172 else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1173 ret = mov_write_eac3_tag(s, pb, track);
1174 else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1175 ret = mov_write_extradata_tag(pb, track);
1176 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1177 ret = mov_write_wfex_tag(s, pb, track);
1178 else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1179 ret = mov_write_dfla_tag(pb, track);
1180 else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1181 ret = mov_write_dops_tag(s, pb, track);
1182 else if (track->par->codec_id == AV_CODEC_ID_TRUEHD)
1183 ret = mov_write_dmlp_tag(s, pb, track);
1184 else if (track->vos_len > 0)
1185 ret = mov_write_glbl_tag(pb, track);
1186
1187 if (ret < 0)
1188 return ret;
1189
1190 if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1191 && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1192 return ret;
1193 }
1194
1195 if (mov->encryption_scheme != MOV_ENC_NONE
1196 && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1197 return ret;
1198 }
1199
1200 ret = update_size(pb, pos);
1201 return ret;
1202 }
1203
1204 static int mov_write_d263_tag(AVIOContext *pb)
1205 {
1206 avio_wb32(pb, 0xf); /* size */
1207 ffio_wfourcc(pb, "d263");
1208 ffio_wfourcc(pb, "FFMP");
1209 avio_w8(pb, 0); /* decoder version */
1210 /* FIXME use AVCodecContext level/profile, when encoder will set values */
1211 avio_w8(pb, 0xa); /* level */
1212 avio_w8(pb, 0); /* profile */
1213 return 0xf;
1214 }
1215
1216 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1217 {
1218 int64_t pos = avio_tell(pb);
1219
1220 avio_wb32(pb, 0);
1221 ffio_wfourcc(pb, "av1C");
1222 ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1223 return update_size(pb, pos);
1224 }
1225
1226 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1227 {
1228 int64_t pos = avio_tell(pb);
1229
1230 avio_wb32(pb, 0);
1231 ffio_wfourcc(pb, "avcC");
1232 ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1233 return update_size(pb, pos);
1234 }
1235
1236 static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
1237 {
1238 int64_t pos = avio_tell(pb);
1239
1240 avio_wb32(pb, 0);
1241 ffio_wfourcc(pb, "vpcC");
1242 avio_w8(pb, 1); /* version */
1243 avio_wb24(pb, 0); /* flags */
1244 ff_isom_write_vpcc(s, pb, track->par);
1245 return update_size(pb, pos);
1246 }
1247
1248 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1249 {
1250 int64_t pos = avio_tell(pb);
1251
1252 avio_wb32(pb, 0);
1253 ffio_wfourcc(pb, "hvcC");
1254 if (track->tag == MKTAG('h','v','c','1'))
1255 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1256 else
1257 ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1258 return update_size(pb, pos);
1259 }
1260
1261 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1262 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1263 {
1264 int i;
1265 int interlaced;
1266 int cid;
1267 int display_width = track->par->width;
1268
1269 if (track->vos_data && track->vos_len > 0x29) {
1270 if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1271 /* looks like a DNxHD bit stream */
1272 interlaced = (track->vos_data[5] & 2);
1273 cid = AV_RB32(track->vos_data + 0x28);
1274 } else {
1275 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1276 return 0;
1277 }
1278 } else {
1279 av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1280 return 0;
1281 }
1282
1283 avio_wb32(pb, 24); /* size */
1284 ffio_wfourcc(pb, "ACLR");
1285 ffio_wfourcc(pb, "ACLR");
1286 ffio_wfourcc(pb, "0001");
1287 if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1288 track->par->color_range == AVCOL_RANGE_UNSPECIFIED) {
1289 avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1290 } else { /* Full range (0-255) */
1291 avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1292 }
1293 avio_wb32(pb, 0); /* unknown */
1294
1295 if (track->tag == MKTAG('A','V','d','h')) {
1296 avio_wb32(pb, 32);
1297 ffio_wfourcc(pb, "ADHR");
1298 ffio_wfourcc(pb, "0001");
1299 avio_wb32(pb, cid);
1300 avio_wb32(pb, 0); /* unknown */
1301 avio_wb32(pb, 1); /* unknown */
1302 avio_wb32(pb, 0); /* unknown */
1303 avio_wb32(pb, 0); /* unknown */
1304 return 0;
1305 }
1306
1307 avio_wb32(pb, 24); /* size */
1308 ffio_wfourcc(pb, "APRG");
1309 ffio_wfourcc(pb, "APRG");
1310 ffio_wfourcc(pb, "0001");
1311 avio_wb32(pb, 1); /* unknown */
1312 avio_wb32(pb, 0); /* unknown */
1313
1314 avio_wb32(pb, 120); /* size */
1315 ffio_wfourcc(pb, "ARES");
1316 ffio_wfourcc(pb, "ARES");
1317 ffio_wfourcc(pb, "0001");
1318 avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1319 if ( track->par->sample_aspect_ratio.num > 0
1320 && track->par->sample_aspect_ratio.den > 0)
1321 display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1322 avio_wb32(pb, display_width);
1323 /* values below are based on samples created with quicktime and avid codecs */
1324 if (interlaced) {
1325 avio_wb32(pb, track->par->height / 2);
1326 avio_wb32(pb, 2); /* unknown */
1327 avio_wb32(pb, 0); /* unknown */
1328 avio_wb32(pb, 4); /* unknown */
1329 } else {
1330 avio_wb32(pb, track->par->height);
1331 avio_wb32(pb, 1); /* unknown */
1332 avio_wb32(pb, 0); /* unknown */
1333 if (track->par->height == 1080)
1334 avio_wb32(pb, 5); /* unknown */
1335 else
1336 avio_wb32(pb, 6); /* unknown */
1337 }
1338 /* padding */
1339 for (i = 0; i < 10; i++)
1340 avio_wb64(pb, 0);
1341
1342 return 0;
1343 }
1344
1345 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1346 {
1347 avio_wb32(pb, 12);
1348 ffio_wfourcc(pb, "DpxE");
1349 if (track->par->extradata_size >= 12 &&
1350 !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1351 avio_wb32(pb, track->par->extradata[11]);
1352 } else {
1353 avio_wb32(pb, 1);
1354 }
1355 return 0;
1356 }
1357
1358 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
1359 {
1360 int tag;
1361
1362 if (track->par->width == 720) { /* SD */
1363 if (track->par->height == 480) { /* NTSC */
1364 if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1365 else tag = MKTAG('d','v','c',' ');
1366 }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1367 else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1368 else tag = MKTAG('d','v','p','p');
1369 } else if (track->par->height == 720) { /* HD 720 line */
1370 if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1371 else tag = MKTAG('d','v','h','p');
1372 } else if (track->par->height == 1080) { /* HD 1080 line */
1373 if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1374 else tag = MKTAG('d','v','h','6');
1375 } else {
1376 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1377 return 0;
1378 }
1379
1380 return tag;
1381 }
1382
1383 static AVRational find_fps(AVFormatContext *s, AVStream *st)
1384 {
1385 AVRational rate = st->avg_frame_rate;
1386
1387 #if FF_API_LAVF_AVCTX
1388 FF_DISABLE_DEPRECATION_WARNINGS
1389 rate = av_inv_q(st->codec->time_base);
1390 if (av_timecode_check_frame_rate(rate) < 0) {
1391 av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1392 rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1393 rate = st->avg_frame_rate;
1394 }
1395 FF_ENABLE_DEPRECATION_WARNINGS
1396 #endif
1397
1398 return rate;
1399 }
1400
1401 static int defined_frame_rate(AVFormatContext *s, AVStream *st)
1402 {
1403 AVRational rational_framerate = find_fps(s, st);
1404 int rate = 0;
1405 if (rational_framerate.den != 0)
1406 rate = av_q2d(rational_framerate);
1407 return rate;
1408 }
1409
1410 static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
1411 {
1412 int tag = track->par->codec_tag;
1413 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1414 AVStream *st = track->st;
1415 int rate = defined_frame_rate(s, st);
1416
1417 if (!tag)
1418 tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1419
1420 if (track->par->format == AV_PIX_FMT_YUV420P) {
1421 if (track->par->width == 1280 && track->par->height == 720) {
1422 if (!interlaced) {
1423 if (rate == 24) tag = MKTAG('x','d','v','4');
1424 else if (rate == 25) tag = MKTAG('x','d','v','5');
1425 else if (rate == 30) tag = MKTAG('x','d','v','1');
1426 else if (rate == 50) tag = MKTAG('x','d','v','a');
1427 else if (rate == 60) tag = MKTAG('x','d','v','9');
1428 }
1429 } else if (track->par->width == 1440 && track->par->height == 1080) {
1430 if (!interlaced) {
1431 if (rate == 24) tag = MKTAG('x','d','v','6');
1432 else if (rate == 25) tag = MKTAG('x','d','v','7');
1433 else if (rate == 30) tag = MKTAG('x','d','v','8');
1434 } else {
1435 if (rate == 25) tag = MKTAG('x','d','v','3');
1436 else if (rate == 30) tag = MKTAG('x','d','v','2');
1437 }
1438 } else if (track->par->width == 1920 && track->par->height == 1080) {
1439 if (!interlaced) {
1440 if (rate == 24) tag = MKTAG('x','d','v','d');
1441 else if (rate == 25) tag = MKTAG('x','d','v','e');
1442 else if (rate == 30) tag = MKTAG('x','d','v','f');
1443 } else {
1444 if (rate == 25) tag = MKTAG('x','d','v','c');
1445 else if (rate == 30) tag = MKTAG('x','d','v','b');
1446 }
1447 }
1448 } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1449 if (track->par->width == 1280 && track->par->height == 720) {
1450 if (!interlaced) {
1451 if (rate == 24) tag = MKTAG('x','d','5','4');
1452 else if (rate == 25) tag = MKTAG('x','d','5','5');
1453 else if (rate == 30) tag = MKTAG('x','d','5','1');
1454 else if (rate == 50) tag = MKTAG('x','d','5','a');
1455 else if (rate == 60) tag = MKTAG('x','d','5','9');
1456 }
1457 } else if (track->par->width == 1920 && track->par->height == 1080) {
1458 if (!interlaced) {
1459 if (rate == 24) tag = MKTAG('x','d','5','d');
1460 else if (rate == 25) tag = MKTAG('x','d','5','e');
1461 else if (rate == 30) tag = MKTAG('x','d','5','f');
1462 } else {
1463 if (rate == 25) tag = MKTAG('x','d','5','c');
1464 else if (rate == 30) tag = MKTAG('x','d','5','b');
1465 }
1466 }
1467 }
1468
1469 return tag;
1470 }
1471
1472 static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
1473 {
1474 int tag = track->par->codec_tag;
1475 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
1476 AVStream *st = track->st;
1477 int rate = defined_frame_rate(s, st);
1478
1479 if (!tag)
1480 tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1481
1482 if (track->par->format == AV_PIX_FMT_YUV420P10) {
1483 if (track->par->width == 960 && track->par->height == 720) {
1484 if (!interlaced) {
1485 if (rate == 24) tag = MKTAG('a','i','5','p');
1486 else if (rate == 25) tag = MKTAG('a','i','5','q');
1487 else if (rate == 30) tag = MKTAG('a','i','5','p');
1488 else if (rate == 50) tag = MKTAG('a','i','5','q');
1489 else if (rate == 60) tag = MKTAG('a','i','5','p');
1490 }
1491 } else if (track->par->width == 1440 && track->par->height == 1080) {
1492 if (!interlaced) {
1493 if (rate == 24) tag = MKTAG('a','i','5','3');
1494 else if (rate == 25) tag = MKTAG('a','i','5','2');
1495 else if (rate == 30) tag = MKTAG('a','i','5','3');
1496 } else {
1497 if (rate == 50) tag = MKTAG('a','i','5','5');
1498 else if (rate == 60) tag = MKTAG('a','i','5','6');
1499 }
1500 }
1501 } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1502 if (track->par->width == 1280 && track->par->height == 720) {
1503 if (!interlaced) {
1504 if (rate == 24) tag = MKTAG('a','i','1','p');
1505 else if (rate == 25) tag = MKTAG('a','i','1','q');
1506 else if (rate == 30) tag = MKTAG('a','i','1','p');
1507 else if (rate == 50) tag = MKTAG('a','i','1','q');
1508 else if (rate == 60) tag = MKTAG('a','i','1','p');
1509 }
1510 } else if (track->par->width == 1920 && track->par->height == 1080) {
1511 if (!interlaced) {
1512 if (rate == 24) tag = MKTAG('a','i','1','3');
1513 else if (rate == 25) tag = MKTAG('a','i','1','2');
1514 else if (rate == 30) tag = MKTAG('a','i','1','3');
1515 } else {
1516 if (rate == 25) tag = MKTAG('a','i','1','5');
1517 else if (rate == 50) tag = MKTAG('a','i','1','5');
1518 else if (rate == 60) tag = MKTAG('a','i','1','6');
1519 }
1520 } else if ( track->par->width == 4096 && track->par->height == 2160
1521 || track->par->width == 3840 && track->par->height == 2160
1522 || track->par->width == 2048 && track->par->height == 1080) {
1523 tag = MKTAG('a','i','v','x');
1524 }
1525 }
1526
1527 return tag;
1528 }
1529
1530 static const struct {
1531 enum AVPixelFormat pix_fmt;
1532 uint32_t tag;
1533 unsigned bps;
1534 } mov_pix_fmt_tags[] = {
1535 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1536 { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1537 { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1538 { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1539 { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1540 { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1541 { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1542 { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1543 { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1544 { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1545 { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1546 { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1547 { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1548 { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1549 { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1550 };
1551
1552 static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track)
1553 {
1554 int tag = MKTAG('A','V','d','n');
1555 if (track->par->profile != FF_PROFILE_UNKNOWN &&
1556 track->par->profile != FF_PROFILE_DNXHD)
1557 tag = MKTAG('A','V','d','h');
1558 return tag;
1559 }
1560
1561 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
1562 {
1563 int tag = track->par->codec_tag;
1564 int i;
1565 enum AVPixelFormat pix_fmt;
1566
1567 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1568 if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1569 tag = mov_pix_fmt_tags[i].tag;
1570 track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
1571 if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1572 break;
1573 }
1574 }
1575
1576 pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
1577 track->par->bits_per_coded_sample);
1578 if (tag == MKTAG('r','a','w',' ') &&
1579 track->par->format != pix_fmt &&
1580 track->par->format != AV_PIX_FMT_GRAY8 &&
1581 track->par->format != AV_PIX_FMT_NONE)
1582 av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1583 av_get_pix_fmt_name(track->par->format));
1584 return tag;
1585 }
1586
1587 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1588 {
1589 unsigned int tag = track->par->codec_tag;
1590
1591 // "rtp " is used to distinguish internally created RTP-hint tracks
1592 // (with rtp_ctx) from other tracks.
1593 if (tag == MKTAG('r','t','p',' '))
1594 tag = 0;
1595 if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1596 (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1597 track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1598 track->par->codec_id == AV_CODEC_ID_H263 ||
1599 track->par->codec_id == AV_CODEC_ID_H264 ||
1600 track->par->codec_id == AV_CODEC_ID_DNXHD ||
1601 track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1602 av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1603 if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1604 tag = mov_get_dv_codec_tag(s, track);
1605 else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1606 tag = mov_get_rawvideo_codec_tag(s, track);
1607 else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1608 tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1609 else if (track->par->codec_id == AV_CODEC_ID_H264)
1610 tag = mov_get_h264_codec_tag(s, track);
1611 else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1612 tag = mov_get_dnxhd_codec_tag(s, track);
1613 else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1614 tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id);
1615 if (!tag) { // if no mac fcc found, try with Microsoft tags
1616 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id);
1617 if (tag)
1618 av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1619 "the file may be unplayable!\n");
1620 }
1621 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1622 tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id);
1623 if (!tag) { // if no mac fcc found, try with Microsoft tags
1624 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1625 if (ms_tag) {
1626 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1627 av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1628 "the file may be unplayable!\n");
1629 }
1630 }
1631 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1632 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id);
1633 }
1634
1635 return tag;
1636 }
1637
1638 static const AVCodecTag codec_cover_image_tags[] = {
1639 { AV_CODEC_ID_MJPEG, 0xD },
1640 { AV_CODEC_ID_PNG, 0xE },
1641 { AV_CODEC_ID_BMP, 0x1B },
1642 { AV_CODEC_ID_NONE, 0 },
1643 };
1644
1645 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1646 unsigned int tag, int codec_id)
1647 {
1648 int i;
1649
1650 /**
1651 * Check that tag + id is in the table
1652 */
1653 for (i = 0; tags && tags[i]; i++) {
1654 const AVCodecTag *codec_tags = tags[i];
1655 while (codec_tags->id != AV_CODEC_ID_NONE) {
1656 if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1657 codec_tags->id == codec_id)
1658 return codec_tags->tag;
1659 codec_tags++;
1660 }
1661 }
1662 return 0;
1663 }
1664
1665 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1666 {
1667 if (is_cover_image(track->st))
1668 return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1669
1670 if (track->mode == MODE_IPOD)
1671 if (!av_match_ext(s->url, "m4a") &&
1672 !av_match_ext(s->url, "m4v") &&
1673 !av_match_ext(s->url, "m4b"))
1674 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1675 "Quicktime/Ipod might not play the file\n");
1676
1677 if (track->mode == MODE_MOV) {
1678 return mov_get_codec_tag(s, track);
1679 } else
1680 return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1681 track->par->codec_id);
1682 }
1683
1684 /** Write uuid atom.
1685 * Needed to make file play in iPods running newest firmware
1686 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1687 */
1688 static int mov_write_uuid_tag_ipod(AVIOContext *pb)
1689 {
1690 avio_wb32(pb, 28);
1691 ffio_wfourcc(pb, "uuid");
1692 avio_wb32(pb, 0x6b6840f2);
1693 avio_wb32(pb, 0x5f244fc5);
1694 avio_wb32(pb, 0xba39a51b);
1695 avio_wb32(pb, 0xcf0323f3);
1696 avio_wb32(pb, 0x0);
1697 return 28;
1698 }
1699
1700 static const uint16_t fiel_data[] = {
1701 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1702 };
1703
1704 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1705 {
1706 unsigned mov_field_order = 0;
1707 if (field_order < FF_ARRAY_ELEMS(fiel_data))
1708 mov_field_order = fiel_data[field_order];
1709 else
1710 return 0;
1711 avio_wb32(pb, 10);
1712 ffio_wfourcc(pb, "fiel");
1713 avio_wb16(pb, mov_field_order);
1714 return 10;
1715 }
1716
1717 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
1718 {
1719 int64_t pos = avio_tell(pb);
1720 avio_wb32(pb, 0); /* size */
1721 avio_wl32(pb, track->tag); // store it byteswapped
1722 avio_wb32(pb, 0); /* Reserved */
1723 avio_wb16(pb, 0); /* Reserved */
1724 avio_wb16(pb, 1); /* Data-reference index */
1725
1726 if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1727 mov_write_esds_tag(pb, track);
1728 else if (track->par->extradata_size)
1729 avio_write(pb, track->par->extradata, track->par->extradata_size);
1730
1731 return update_size(pb, pos);
1732 }
1733
1734 static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d)
1735 {
1736 int8_t stereo_mode;
1737
1738 if (stereo_3d->flags != 0) {
1739 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1740 return 0;
1741 }
1742
1743 switch (stereo_3d->type) {
1744 case AV_STEREO3D_2D:
1745 stereo_mode = 0;
1746 break;
1747 case AV_STEREO3D_TOPBOTTOM:
1748 stereo_mode = 1;
1749 break;
1750 case AV_STEREO3D_SIDEBYSIDE:
1751 stereo_mode = 2;
1752 break;
1753 default:
1754 av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1755 return 0;
1756 }
1757 avio_wb32(pb, 13); /* size */
1758 ffio_wfourcc(pb, "st3d");
1759 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1760 avio_w8(pb, stereo_mode);
1761 return 13;
1762 }
1763
1764 static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping)
1765 {
1766 int64_t sv3d_pos, svhd_pos, proj_pos;
1767 const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1768
1769 if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1770 spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1771 spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1772 av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1773 return 0;
1774 }
1775
1776 sv3d_pos = avio_tell(pb);
1777 avio_wb32(pb, 0); /* size */
1778 ffio_wfourcc(pb, "sv3d");
1779
1780 svhd_pos = avio_tell(pb);
1781 avio_wb32(pb, 0); /* size */
1782 ffio_wfourcc(pb, "svhd");
1783 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1784 avio_put_str(pb, metadata_source);
1785 update_size(pb, svhd_pos);
1786
1787 proj_pos = avio_tell(pb);
1788 avio_wb32(pb, 0); /* size */
1789 ffio_wfourcc(pb, "proj");
1790
1791 avio_wb32(pb, 24); /* size */
1792 ffio_wfourcc(pb, "prhd");
1793 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1794 avio_wb32(pb, spherical_mapping->yaw);
1795 avio_wb32(pb, spherical_mapping->pitch);
1796 avio_wb32(pb, spherical_mapping->roll);
1797
1798 switch (spherical_mapping->projection) {
1799 case AV_SPHERICAL_EQUIRECTANGULAR:
1800 case AV_SPHERICAL_EQUIRECTANGULAR_TILE:
1801 avio_wb32(pb, 28); /* size */
1802 ffio_wfourcc(pb, "equi");
1803 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1804 avio_wb32(pb, spherical_mapping->bound_top);
1805 avio_wb32(pb, spherical_mapping->bound_bottom);
1806 avio_wb32(pb, spherical_mapping->bound_left);
1807 avio_wb32(pb, spherical_mapping->bound_right);
1808 break;
1809 case AV_SPHERICAL_CUBEMAP:
1810 avio_wb32(pb, 20); /* size */
1811 ffio_wfourcc(pb, "cbmp");
1812 avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1813 avio_wb32(pb, 0); /* layout */
1814 avio_wb32(pb, spherical_mapping->padding); /* padding */
1815 break;
1816 }
1817 update_size(pb, proj_pos);
1818
1819 return update_size(pb, sv3d_pos);
1820 }
1821
1822 static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDecoderConfigurationRecord *dovi)
1823 {
1824 avio_wb32(pb, 32); /* size = 8 + 24 */
1825 if (dovi->dv_profile > 7)
1826 ffio_wfourcc(pb, "dvvC");
1827 else
1828 ffio_wfourcc(pb, "dvcC");
1829 avio_w8(pb, dovi->dv_version_major);
1830 avio_w8(pb, dovi->dv_version_minor);
1831 avio_wb16(pb, (dovi->dv_profile << 9) | (dovi->dv_level << 3) |
1832 (dovi->rpu_present_flag << 2) | (dovi->el_present_flag << 1) |
1833 dovi->bl_present_flag);
1834 avio_wb32(pb, (dovi->dv_bl_signal_compatibility_id << 28) | 0);
1835
1836 avio_wb32(pb, 0); /* reserved */
1837 avio_wb32(pb, 0); /* reserved */
1838 avio_wb32(pb, 0); /* reserved */
1839 avio_wb32(pb, 0); /* reserved */
1840 av_log(s, AV_LOG_DEBUG, "DOVI in %s box, version: %d.%d, profile: %d, level: %d, "
1841 "rpu flag: %d, el flag: %d, bl flag: %d, compatibility id: %d\n",
1842 dovi->dv_profile > 7 ? "dvvC" : "dvcC",
1843 dovi->dv_version_major, dovi->dv_version_minor,
1844 dovi->dv_profile, dovi->dv_level,
1845 dovi->rpu_present_flag,
1846 dovi->el_present_flag,
1847 dovi->bl_present_flag,
1848 dovi->dv_bl_signal_compatibility_id);
1849 return 32; /* 8 + 24 */
1850 }
1851
1852 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1853 {
1854 avio_wb32(pb, 40);
1855 ffio_wfourcc(pb, "clap");
1856 avio_wb32(pb, track->par->width); /* apertureWidth_N */
1857 avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1858 avio_wb32(pb, track->height); /* apertureHeight_N */
1859 avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1860 avio_wb32(pb, 0); /* horizOff_N (= 0) */
1861 avio_wb32(pb, 1); /* horizOff_D (= 1) */
1862 avio_wb32(pb, 0); /* vertOff_N (= 0) */
1863 avio_wb32(pb, 1); /* vertOff_D (= 1) */
1864 return 40;
1865 }
1866
1867 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1868 {
1869 AVRational sar;
1870 av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1871 track->par->sample_aspect_ratio.den, INT_MAX);
1872
1873 avio_wb32(pb, 16);
1874 ffio_wfourcc(pb, "pasp");
1875 avio_wb32(pb, sar.num);
1876 avio_wb32(pb, sar.den);
1877 return 16;
1878 }
1879
1880 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1881 {
1882 uint32_t gama = 0;
1883 if (gamma <= 0.0) {
1884 gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1885 }
1886 av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1887
1888 if (gamma > 1e-6) {
1889 gama = (uint32_t)lrint((double)(1<<16) * gamma);
1890 av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1891
1892 av_assert0(track->mode == MODE_MOV);
1893 avio_wb32(pb, 12);
1894 ffio_wfourcc(pb, "gama");
1895 avio_wb32(pb, gama);
1896 return 12;
1897 } else {
1898 av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1899 }
1900 return 0;
1901 }
1902
1903 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
1904 {
1905 int64_t pos = avio_tell(pb);
1906
1907 // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1908 // Ref (MP4): ISO/IEC 14496-12:2012
1909
1910 const uint8_t *icc_profile;
1911 int icc_profile_size;
1912
1913 if (prefer_icc) {
1914 icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size);
1915
1916 if (icc_profile) {
1917 avio_wb32(pb, 12 + icc_profile_size);
1918 ffio_wfourcc(pb, "colr");
1919 ffio_wfourcc(pb, "prof");
1920 avio_write(pb, icc_profile, icc_profile_size);
1921 return 12 + icc_profile_size;
1922 }
1923 else {
1924 av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
1925 }
1926 }
1927
1928 /* We should only ever be called by MOV or MP4. */
1929 av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1930
1931 avio_wb32(pb, 0); /* size */
1932 ffio_wfourcc(pb, "colr");
1933 if (track->mode == MODE_MP4)
1934 ffio_wfourcc(pb, "nclx");
1935 else
1936 ffio_wfourcc(pb, "nclc");
1937 // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED.
1938 // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See
1939 // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf
1940 avio_wb16(pb, track->par->color_primaries);
1941 avio_wb16(pb, track->par->color_trc);
1942 avio_wb16(pb, track->par->color_space);
1943 if (track->mode == MODE_MP4) {
1944 int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1945 avio_w8(pb, full_range << 7);
1946 }
1947
1948 return update_size(pb, pos);
1949 }
1950
1951 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
1952 {
1953 const uint8_t *side_data;
1954 const AVContentLightMetadata *content_light_metadata;
1955
1956 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL);
1957 if (!side_data) {
1958 av_log(NULL, AV_LOG_VERBOSE, "Not writing 'clli' atom. No content light level info.\n");
1959 return 0;
1960 }
1961 content_light_metadata = (const AVContentLightMetadata*)side_data;
1962
1963 avio_wb32(pb, 12); // size
1964 ffio_wfourcc(pb, "clli");
1965 avio_wb16(pb, content_light_metadata->MaxCLL);
1966 avio_wb16(pb, content_light_metadata->MaxFALL);
1967 return 12;
1968 }
1969
1970 static inline int64_t rescale_mdcv(AVRational q, int b)
1971 {
1972 return av_rescale(q.num, b, q.den);
1973 }
1974
1975 static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
1976 {
1977 const int chroma_den = 50000;
1978 const int luma_den = 10000;
1979 const uint8_t *side_data;
1980 const AVMasteringDisplayMetadata *metadata;
1981
1982 side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
1983 metadata = (const AVMasteringDisplayMetadata*)side_data;
1984 if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
1985 av_log(NULL, AV_LOG_VERBOSE, "Not writing 'mdcv' atom. Missing mastering metadata.\n");
1986 return 0;
1987 }
1988
1989 avio_wb32(pb, 32); // size
1990 ffio_wfourcc(pb, "mdcv");
1991 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][0], chroma_den));
1992 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][1], chroma_den));
1993 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][0], chroma_den));
1994 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][1], chroma_den));
1995 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][0], chroma_den));
1996 avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][1], chroma_den));
1997 avio_wb16(pb, rescale_mdcv(metadata->white_point[0], chroma_den));
1998 avio_wb16(pb, rescale_mdcv(metadata->white_point[1], chroma_den));
1999 avio_wb32(pb, rescale_mdcv(metadata->max_luminance, luma_den));
2000 avio_wb32(pb, rescale_mdcv(metadata->min_luminance, luma_den));
2001 return 32;
2002 }
2003
2004 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
2005 {
2006 AVDictionaryEntry *encoder;
2007 int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
2008 || (track->par->width == 1440 && track->par->height == 1080)
2009 || (track->par->width == 1920 && track->par->height == 1080);
2010
2011 if (track->mode == MODE_MOV &&
2012 (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
2013 av_strlcpy(compressor_name, encoder->value, 32);
2014 } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
2015 int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE;
2016 AVStream *st = track->st;
2017 int rate = defined_frame_rate(NULL, st);
2018 av_strlcatf(compressor_name, len, "XDCAM");
2019 if (track->par->format == AV_PIX_FMT_YUV422P) {
2020 av_strlcatf(compressor_name, len, " HD422");
2021 } else if(track->par->width == 1440) {
2022 av_strlcatf(compressor_name, len, " HD");
2023 } else
2024 av_strlcatf(compressor_name, len, " EX");
2025
2026 av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
2027
2028 av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
2029 }
2030 }
2031
2032 static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2033 {
2034 int64_t pos = avio_tell(pb);
2035 char compressor_name[32] = { 0 };
2036 int avid = 0;
2037
2038 int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
2039 || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
2040 || track->par->codec_id == AV_CODEC_ID_V308
2041 || track->par->codec_id == AV_CODEC_ID_V408
2042 || track->par->codec_id == AV_CODEC_ID_V410
2043 || track->par->codec_id == AV_CODEC_ID_V210);
2044
2045 avio_wb32(pb, 0); /* size */
2046 if (mov->encryption_scheme != MOV_ENC_NONE) {
2047 ffio_wfourcc(pb, "encv");
2048 } else {
2049 avio_wl32(pb, track->tag); // store it byteswapped
2050 }
2051 avio_wb32(pb, 0); /* Reserved */
2052 avio_wb16(pb, 0); /* Reserved */
2053 avio_wb16(pb, 1); /* Data-reference index */
2054
2055 if (uncompressed_ycbcr) {
2056 avio_wb16(pb, 2); /* Codec stream version */
2057 } else {
2058 avio_wb16(pb, 0); /* Codec stream version */
2059 }
2060 avio_wb16(pb, 0); /* Codec stream revision (=0) */
2061 if (track->mode == MODE_MOV) {
2062 ffio_wfourcc(pb, "FFMP"); /* Vendor */
2063 if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
2064 avio_wb32(pb, 0); /* Temporal Quality */
2065 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
2066 } else {
2067 avio_wb32(pb, 0x200); /* Temporal Quality = normal */
2068 avio_wb32(pb, 0x200); /* Spatial Quality = normal */
2069 }
2070 } else {
2071 avio_wb32(pb, 0); /* Reserved */
2072 avio_wb32(pb, 0); /* Reserved */
2073 avio_wb32(pb, 0); /* Reserved */
2074 }
2075 avio_wb16(pb, track->par->width); /* Video width */
2076 avio_wb16(pb, track->height); /* Video height */
2077 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
2078 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
2079 avio_wb32(pb, 0); /* Data size (= 0) */
2080 avio_wb16(pb, 1); /* Frame count (= 1) */
2081
2082 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
2083 find_compressor(compressor_name, 32, track);
2084 avio_w8(pb, strlen(compressor_name));
2085 avio_write(pb, compressor_name, 31);
2086
2087 if (track->mode == MODE_MOV &&
2088 (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
2089 avio_wb16(pb, 0x18);
2090 else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2091 avio_wb16(pb, track->par->bits_per_coded_sample |
2092 (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2093 else
2094 avio_wb16(pb, 0x18); /* Reserved */
2095
2096 if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2097 int pal_size, i;
2098 avio_wb16(pb, 0); /* Color table ID */
2099 avio_wb32(pb, 0); /* Color table seed */
2100 avio_wb16(pb, 0x8000); /* Color table flags */
2101 if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8)
2102 return AVERROR(EINVAL);
2103 pal_size = 1 << track->par->bits_per_coded_sample;
2104 avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2105 for (i = 0; i < pal_size; i++) {
2106 uint32_t rgb = track->palette[i];
2107 uint16_t r = (rgb >> 16) & 0xff;
2108 uint16_t g = (rgb >> 8) & 0xff;
2109 uint16_t b = rgb & 0xff;
2110 avio_wb16(pb, 0);
2111 avio_wb16(pb, (r << 8) | r);
2112 avio_wb16(pb, (g << 8) | g);
2113 avio_wb16(pb, (b << 8) | b);
2114 }
2115 } else
2116 avio_wb16(pb, 0xffff); /* Reserved */
2117
2118 if (track->tag == MKTAG('m','p','4','v'))
2119 mov_write_esds_tag(pb, track);
2120 else if (track->par->codec_id == AV_CODEC_ID_H263)
2121 mov_write_d263_tag(pb);
2122 else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2123 track->par->codec_id == AV_CODEC_ID_SVQ3) {
2124 mov_write_extradata_tag(pb, track);
2125 avio_wb32(pb, 0);
2126 } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2127 mov_write_avid_tag(pb, track);
2128 avid = 1;
2129 } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2130 mov_write_hvcc_tag(pb, track);
2131 else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2132 mov_write_avcc_tag(pb, track);
2133 if (track->mode == MODE_IPOD)
2134 mov_write_uuid_tag_ipod(pb);
2135 } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2136 mov_write_vpcc_tag(mov->fc, pb, track);
2137 } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2138 mov_write_av1c_tag(pb, track);
2139 } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2140 mov_write_dvc1_tag(pb, track);
2141 else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2142 track->par->codec_id == AV_CODEC_ID_VP6A) {
2143 /* Don't write any potential extradata here - the cropping
2144 * is signalled via the normal width/height fields. */
2145 } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2146 if (track->par->codec_tag == MKTAG('R','1','0','k'))
2147 mov_write_dpxe_tag(pb, track);
2148 } else if (track->vos_len > 0)
2149 mov_write_glbl_tag(pb, track);
2150
2151 if (track->par->codec_id != AV_CODEC_ID_H264 &&
2152 track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2153 track->par->codec_id != AV_CODEC_ID_DNXHD) {
2154 int field_order = track->par->field_order;
2155
2156 #if FF_API_LAVF_AVCTX
2157 FF_DISABLE_DEPRECATION_WARNINGS
2158 if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
2159 field_order = track->st->codec->field_order;
2160 FF_ENABLE_DEPRECATION_WARNINGS
2161 #endif
2162
2163 if (field_order != AV_FIELD_UNKNOWN)
2164 mov_write_fiel_tag(pb, track, field_order);
2165 }
2166
2167 if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2168 if (track->mode == MODE_MOV)
2169 mov_write_gama_tag(s, pb, track, mov->gamma);
2170 else
2171 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2172 }
2173 if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2174 if (track->mode == MODE_MOV || track->mode == MODE_MP4)
2175 mov_write_colr_tag(pb, track, mov->flags & FF_MOV_FLAG_PREFER_ICC);
2176 else
2177 av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2178 }
2179 if (track->mode == MODE_MOV || track->mode == MODE_MP4) {
2180 mov_write_clli_tag(pb, track);
2181 mov_write_mdcv_tag(pb, track);
2182 }
2183
2184 if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2185 AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
2186 AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
2187 AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)
2188 av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL);;
2189
2190 if (stereo_3d)
2191 mov_write_st3d_tag(s, pb, stereo_3d);
2192 if (spherical_mapping)
2193 mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2194 if (dovi)
2195 mov_write_dvcc_dvvc_tag(s, pb, dovi);
2196 }
2197
2198 if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2199 mov_write_pasp_tag(pb, track);
2200 }
2201
2202 if (uncompressed_ycbcr){
2203 mov_write_clap_tag(pb, track);
2204 }
2205
2206 if (mov->encryption_scheme != MOV_ENC_NONE) {
2207 ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2208 }
2209
2210 /* extra padding for avid stsd */
2211 /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2212 if (avid)
2213 avio_wb32(pb, 0);
2214
2215 return update_size(pb, pos);
2216 }
2217
2218 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2219 {
2220 int64_t pos = avio_tell(pb);
2221 avio_wb32(pb, 0); /* size */
2222 ffio_wfourcc(pb, "rtp ");
2223 avio_wb32(pb, 0); /* Reserved */
2224 avio_wb16(pb, 0); /* Reserved */
2225 avio_wb16(pb, 1); /* Data-reference index */
2226
2227 avio_wb16(pb, 1); /* Hint track version */
2228 avio_wb16(pb, 1); /* Highest compatible version */
2229 avio_wb32(pb, track->max_packet_size); /* Max packet size */
2230
2231 avio_wb32(pb, 12); /* size */
2232 ffio_wfourcc(pb, "tims");
2233 avio_wb32(pb, track->timescale);
2234
2235 return update_size(pb, pos);
2236 }
2237
2238 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2239 {
2240 uint64_t str_size =strlen(reel_name);
2241 int64_t pos = avio_tell(pb);
2242
2243 if (str_size >= UINT16_MAX){
2244 av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2245 avio_wb16(pb, 0);
2246 return AVERROR(EINVAL);
2247 }
2248
2249 avio_wb32(pb, 0); /* size */
2250 ffio_wfourcc(pb, "name"); /* Data format */
2251 avio_wb16(pb, str_size); /* string size */
2252 avio_wb16(pb, track->language); /* langcode */
2253 avio_write(pb, reel_name, str_size); /* reel name */
2254 return update_size(pb,pos);
2255 }
2256
2257 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2258 {
2259 int64_t pos = avio_tell(pb);
2260 #if 1
2261 int frame_duration;
2262 int nb_frames;
2263 AVDictionaryEntry *t = NULL;
2264
2265 if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2266 #if FF_API_LAVF_AVCTX
2267 FF_DISABLE_DEPRECATION_WARNINGS
2268 frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2269 nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2270 FF_ENABLE_DEPRECATION_WARNINGS
2271 #else
2272 av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2273 return AVERROR(EINVAL);
2274 #endif
2275 } else {
2276 frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2277 nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2278 }
2279
2280 if (nb_frames > 255) {
2281 av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2282 return AVERROR(EINVAL);
2283 }
2284
2285 avio_wb32(pb, 0); /* size */
2286 ffio_wfourcc(pb, "tmcd"); /* Data format */
2287 avio_wb32(pb, 0); /* Reserved */
2288 avio_wb32(pb, 1); /* Data reference index */
2289 avio_wb32(pb, 0); /* Flags */
2290 avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2291 avio_wb32(pb, track->timescale); /* Timescale */
2292 avio_wb32(pb, frame_duration); /* Frame duration */
2293 avio_w8(pb, nb_frames); /* Number of frames */
2294 avio_w8(pb, 0); /* Reserved */
2295
2296 t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2297 if (t && utf8len(t->value) && track->mode != MODE_MP4)
2298 mov_write_source_reference_tag(pb, track, t->value);
2299 else
2300 avio_wb16(pb, 0); /* zero size */
2301 #else
2302
2303 avio_wb32(pb, 0); /* size */
2304 ffio_wfourcc(pb, "tmcd"); /* Data format */
2305 avio_wb32(pb, 0); /* Reserved */
2306 avio_wb32(pb, 1); /* Data reference index */
2307 if (track->par->extradata_size)
2308 avio_write(pb, track->par->extradata, track->par->extradata_size);
2309 #endif
2310 return update_size(pb, pos);
2311 }
2312
2313 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2314 {
2315 int64_t pos = avio_tell(pb);
2316 avio_wb32(pb, 0); /* size */
2317 ffio_wfourcc(pb, "gpmd");
2318 avio_wb32(pb, 0); /* Reserved */
2319 avio_wb16(pb, 0); /* Reserved */
2320 avio_wb16(pb, 1); /* Data-reference index */
2321 avio_wb32(pb, 0); /* Reserved */
2322 return update_size(pb, pos);
2323 }
2324
2325 static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2326 {
2327 int64_t pos = avio_tell(pb);
2328 int ret = 0;
2329 avio_wb32(pb, 0); /* size */
2330 ffio_wfourcc(pb, "stsd");
2331 avio_wb32(pb, 0); /* version & flags */
2332 avio_wb32(pb, 1); /* entry count */
2333 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2334 ret = mov_write_video_tag(s, pb, mov, track);
2335 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2336 ret = mov_write_audio_tag(s, pb, mov, track);
2337 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2338 ret = mov_write_subtitle_tag(pb, track);
2339 else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2340 ret = mov_write_rtp_tag(pb, track);
2341 else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2342 ret = mov_write_tmcd_tag(pb, track);
2343 else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2344 ret = mov_write_gpmd_tag(pb, track);
2345
2346 if (ret < 0)
2347 return ret;
2348
2349 return update_size(pb, pos);
2350 }
2351
2352 static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2353 {
2354 MOVMuxContext *mov = s->priv_data;
2355 MOVStts *ctts_entries;
2356 uint32_t entries = 0;
2357 uint32_t atom_size;
2358 int i;
2359
2360 ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2361 if (!ctts_entries)
2362 return AVERROR(ENOMEM);
2363 ctts_entries[0].count = 1;
2364 ctts_entries[0].duration = track->cluster[0].cts;
2365 for (i = 1; i < track->entry; i++) {
2366 if (track->cluster[i].cts == ctts_entries[entries].duration) {
2367 ctts_entries[entries].count++; /* compress */
2368 } else {
2369 entries++;
2370 ctts_entries[entries].duration = track->cluster[i].cts;
2371 ctts_entries[entries].count = 1;
2372 }
2373 }
2374 entries++; /* last one */
2375 atom_size = 16 + (entries * 8);
2376 avio_wb32(pb, atom_size); /* size */
2377 ffio_wfourcc(pb, "ctts");
2378 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
2379 avio_w8(pb, 1); /* version */
2380 else
2381 avio_w8(pb, 0); /* version */
2382 avio_wb24(pb, 0); /* flags */
2383 avio_wb32(pb, entries); /* entry count */
2384 for (i = 0; i < entries; i++) {
2385 avio_wb32(pb, ctts_entries[i].count);
2386 avio_wb32(pb, ctts_entries[i].duration);
2387 }
2388 av_free(ctts_entries);
2389 return atom_size;
2390 }
2391
2392 /* Time to sample atom */
2393 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2394 {
2395 MOVStts *stts_entries = NULL;
2396 uint32_t entries = -1;
2397 uint32_t atom_size;
2398 int i;
2399
2400 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2401 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2402 if (!stts_entries)
2403 return AVERROR(ENOMEM);
2404 stts_entries[0].count = track->sample_count;
2405 stts_entries[0].duration = 1;
2406 entries = 1;
2407 } else {
2408 if (track->entry) {
2409 stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2410 if (!stts_entries)
2411 return AVERROR(ENOMEM);
2412 }
2413 for (i = 0; i < track->entry; i++) {
2414 int duration = get_cluster_duration(track, i);
2415 if (i && duration == stts_entries[entries].duration) {
2416 stts_entries[entries].count++; /* compress */
2417 } else {
2418 entries++;
2419 stts_entries[entries].duration = duration;
2420 stts_entries[entries].count = 1;
2421 }
2422 }
2423 entries++; /* last one */
2424 }
2425 atom_size = 16 + (entries * 8);
2426 avio_wb32(pb, atom_size); /* size */
2427 ffio_wfourcc(pb, "stts");
2428 avio_wb32(pb, 0); /* version & flags */
2429 avio_wb32(pb, entries); /* entry count */
2430 for (i = 0; i < entries; i++) {
2431 avio_wb32(pb, stts_entries[i].count);
2432 avio_wb32(pb, stts_entries[i].duration);
2433 }
2434 av_free(stts_entries);
2435 return atom_size;
2436 }
2437
2438 static int mov_write_dref_tag(AVIOContext *pb)
2439 {
2440 avio_wb32(pb, 28); /* size */
2441 ffio_wfourcc(pb, "dref");
2442 avio_wb32(pb, 0); /* version & flags */
2443 avio_wb32(pb, 1); /* entry count */
2444
2445 avio_wb32(pb, 0xc); /* size */
2446 //FIXME add the alis and rsrc atom
2447 ffio_wfourcc(pb, "url ");
2448 avio_wb32(pb, 1); /* version & flags */
2449
2450 return 28;
2451 }
2452
2453 static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track)
2454 {
2455 struct sgpd_entry {
2456 int count;
2457 int16_t roll_distance;
2458 int group_description_index;
2459 };
2460
2461 struct sgpd_entry *sgpd_entries = NULL;
2462 int entries = -1;
2463 int group = 0;
2464 int i, j;
2465
2466 const int OPUS_SEEK_PREROLL_MS = 80;
2467 int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2468 (AVRational){1, 1000},
2469 (AVRational){1, 48000});
2470
2471 if (!track->entry)
2472 return 0;
2473
2474 sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2475 if (!sgpd_entries)
2476 return AVERROR(ENOMEM);
2477
2478 av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC);
2479
2480 if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2481 for (i = 0; i < track->entry; i++) {
2482 int roll_samples_remaining = roll_samples;
2483 int distance = 0;
2484 for (j = i - 1; j >= 0; j--) {
2485 roll_samples_remaining -= get_cluster_duration(track, j);
2486 distance++;
2487 if (roll_samples_remaining <= 0)
2488 break;
2489 }
2490 /* We don't have enough preceeding samples to compute a valid
2491 roll_distance here, so this sample can't be independently
2492 decoded. */
2493 if (roll_samples_remaining > 0)
2494 distance = 0;
2495 /* Verify distance is a maximum of 32 (2.5ms) packets. */
2496 if (distance > 32)
2497 return AVERROR_INVALIDDATA;
2498 if (i && distance == sgpd_entries[entries].roll_distance) {
2499 sgpd_entries[entries].count++;
2500 } else {
2501 entries++;
2502 sgpd_entries[entries].count = 1;
2503 sgpd_entries[entries].roll_distance = distance;
2504 sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2505 }
2506 }
2507 } else {
2508 entries++;
2509 sgpd_entries[entries].count = track->sample_count;
2510 sgpd_entries[entries].roll_distance = 1;
2511 sgpd_entries[entries].group_description_index = ++group;
2512 }
2513 entries++;
2514
2515 if (!group) {
2516 av_free(sgpd_entries);
2517 return 0;
2518 }
2519
2520 /* Write sgpd tag */
2521 avio_wb32(pb, 24 + (group * 2)); /* size */
2522 ffio_wfourcc(pb, "sgpd");
2523 avio_wb32(pb, 1 << 24); /* fullbox */
2524 ffio_wfourcc(pb, "roll");
2525 avio_wb32(pb, 2); /* default_length */
2526 avio_wb32(pb, group); /* entry_count */
2527 for (i = 0; i < entries; i++) {
2528 if (sgpd_entries[i].group_description_index) {
2529 avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2530 }
2531 }
2532
2533 /* Write sbgp tag */
2534 avio_wb32(pb, 20 + (entries * 8)); /* size */
2535 ffio_wfourcc(pb, "sbgp");
2536 avio_wb32(pb, 0); /* fullbox */
2537 ffio_wfourcc(pb, "roll");
2538 avio_wb32(pb, entries); /* entry_count */
2539 for (i = 0; i < entries; i++) {
2540 avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2541 avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2542 }
2543
2544 av_free(sgpd_entries);
2545 return 0;
2546 }
2547
2548 static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2549 {
2550 int64_t pos = avio_tell(pb);
2551 int ret = 0;
2552
2553 avio_wb32(pb, 0); /* size */
2554 ffio_wfourcc(pb, "stbl");
2555 if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2556 return ret;
2557 mov_write_stts_tag(pb, track);
2558 if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2559 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
2560 track->par->codec_id == AV_CODEC_ID_MPEGH_3D_AUDIO ||
2561 track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2562 track->has_keyframes && track->has_keyframes < track->entry)
2563 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2564 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2565 mov_write_sdtp_tag(pb, track);
2566 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2567 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
2568 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2569 track->flags & MOV_TRACK_CTTS && track->entry) {
2570
2571 if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2572 return ret;
2573 }
2574 mov_write_stsc_tag(pb, track);
2575 mov_write_stsz_tag(pb, track);
2576 mov_write_stco_tag(pb, track);
2577 if (track->cenc.aes_ctr) {
2578 ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2579 }
2580 if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2581 mov_preroll_write_stbl_atoms(pb, track);
2582 }
2583 return update_size(pb, pos);
2584 }
2585
2586 static int mov_write_dinf_tag(AVIOContext *pb)
2587 {
2588 int64_t pos = avio_tell(pb);
2589 avio_wb32(pb, 0); /* size */
2590 ffio_wfourcc(pb, "dinf");
2591 mov_write_dref_tag(pb);
2592 return update_size(pb, pos);
2593 }
2594
2595 static int mov_write_nmhd_tag(AVIOContext *pb)
2596 {
2597 avio_wb32(pb, 12);
2598 ffio_wfourcc(pb, "nmhd");
2599 avio_wb32(pb, 0);
2600 return 12;
2601 }
2602
2603 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2604 {
2605 int64_t pos = avio_tell(pb);
2606 const char *font = "Lucida Grande";
2607 avio_wb32(pb, 0); /* size */
2608 ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2609 avio_wb32(pb, 0); /* version & flags */
2610 avio_wb16(pb, 0); /* text font */
2611 avio_wb16(pb, 0); /* text face */
2612 avio_wb16(pb, 12); /* text size */
2613 avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2614 avio_wb16(pb, 0x0000); /* text color (red) */
2615 avio_wb16(pb, 0x0000); /* text color (green) */
2616 avio_wb16(pb, 0x0000); /* text color (blue) */
2617 avio_wb16(pb, 0xffff); /* background color (red) */
2618 avio_wb16(pb, 0xffff); /* background color (green) */
2619 avio_wb16(pb, 0xffff); /* background color (blue) */
2620 avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2621 avio_write(pb, font, strlen(font)); /* font name */
2622 return update_size(pb, pos);
2623 }
2624
2625 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2626 {
2627 int64_t pos = avio_tell(pb);
2628 avio_wb32(pb, 0); /* size */
2629 ffio_wfourcc(pb, "gmhd");
2630 avio_wb32(pb, 0x18); /* gmin size */
2631 ffio_wfourcc(pb, "gmin");/* generic media info */
2632 avio_wb32(pb, 0); /* version & flags */
2633 avio_wb16(pb, 0x40); /* graphics mode = */
2634 avio_wb16(pb, 0x8000); /* opColor (r?) */
2635 avio_wb16(pb, 0x8000); /* opColor (g?) */
2636 avio_wb16(pb, 0x8000); /* opColor (b?) */
2637 avio_wb16(pb, 0); /* balance */
2638 avio_wb16(pb, 0); /* reserved */
2639
2640 /*
2641 * This special text atom is required for
2642 * Apple Quicktime chapters. The contents
2643 * don't appear to be documented, so the
2644 * bytes are copied verbatim.
2645 */
2646 if (track->tag != MKTAG('c','6','0','8')) {
2647 avio_wb32(pb, 0x2C); /* size */
2648 ffio_wfourcc(pb, "text");
2649 avio_wb16(pb, 0x01);
2650 avio_wb32(pb, 0x00);
2651 avio_wb32(pb, 0x00);
2652 avio_wb32(pb, 0x00);
2653 avio_wb32(pb, 0x01);
2654 avio_wb32(pb, 0x00);
2655 avio_wb32(pb, 0x00);
2656 avio_wb32(pb, 0x00);
2657 avio_wb32(pb, 0x00004000);
2658 avio_wb16(pb, 0x0000);
2659 }
2660
2661 if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2662 int64_t tmcd_pos = avio_tell(pb);
2663 avio_wb32(pb, 0); /* size */
2664 ffio_wfourcc(pb, "tmcd");
2665 mov_write_tcmi_tag(pb, track);
2666 update_size(pb, tmcd_pos);
2667 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2668 int64_t gpmd_pos = avio_tell(pb);
2669 avio_wb32(pb, 0); /* size */
2670 ffio_wfourcc(pb, "gpmd");
2671 avio_wb32(pb, 0); /* version */
2672 update_size(pb, gpmd_pos);
2673 }
2674 return update_size(pb, pos);
2675 }
2676
2677 static int mov_write_smhd_tag(AVIOContext *pb)
2678 {
2679 avio_wb32(pb, 16); /* size */
2680 ffio_wfourcc(pb, "smhd");
2681 avio_wb32(pb, 0); /* version & flags */
2682 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2683 avio_wb16(pb, 0); /* reserved */
2684 return 16;
2685 }
2686
2687 static int mov_write_vmhd_tag(AVIOContext *pb)
2688 {
2689 avio_wb32(pb, 0x14); /* size (always 0x14) */
2690 ffio_wfourcc(pb, "vmhd");
2691 avio_wb32(pb, 0x01); /* version & flags */
2692 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2693 return 0x14;
2694 }
2695
2696 static int is_clcp_track(MOVTrack *track)
2697 {
2698 return track->tag == MKTAG('c','7','0','8') ||
2699 track->tag == MKTAG('c','6','0','8');
2700 }
2701
2702 static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track)
2703 {
2704 MOVMuxContext *mov = s->priv_data;
2705 const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2706 int64_t pos = avio_tell(pb);
2707
2708 hdlr = "dhlr";
2709 hdlr_type = "url ";
2710 descr = "DataHandler";
2711
2712 if (track) {
2713 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2714 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2715 hdlr_type = "vide";
2716 descr = "VideoHandler";
2717 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2718 hdlr_type = "soun";
2719 descr = "SoundHandler";
2720 } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2721 if (is_clcp_track(track)) {
2722 hdlr_type = "clcp";
2723 descr = "ClosedCaptionHandler";
2724 } else {
2725 if (track->tag == MKTAG('t','x','3','g')) {
2726 hdlr_type = "sbtl";
2727 } else if (track->tag == MKTAG('m','p','4','s')) {
2728 hdlr_type = "subp";
2729 } else {
2730 hdlr_type = "text";
2731 }
2732 descr = "SubtitleHandler";
2733 }
2734 } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2735 hdlr_type = "hint";
2736 descr = "HintHandler";
2737 } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2738 hdlr_type = "tmcd";
2739 descr = "TimeCodeHandler";
2740 } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2741 hdlr_type = "meta";
2742 descr = "GoPro MET"; // GoPro Metadata
2743 } else {
2744 av_log(s, AV_LOG_WARNING,
2745 "Unknown hldr_type for %s, writing dummy values\n",
2746 av_fourcc2str(track->par->codec_tag));
2747 }
2748 if (track->st) {
2749 // hdlr.name is used by some players to identify the content title
2750 // of the track. So if an alternate handler description is
2751 // specified, use it.
2752 AVDictionaryEntry *t;
2753 t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2754 if (t && utf8len(t->value))
2755 descr = t->value;
2756 }
2757 }
2758
2759 if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2760 descr = "";
2761
2762 avio_wb32(pb, 0); /* size */
2763 ffio_wfourcc(pb, "hdlr");
2764 avio_wb32(pb, 0); /* Version & flags */
2765 avio_write(pb, hdlr, 4); /* handler */
2766 ffio_wfourcc(pb, hdlr_type); /* handler type */
2767 avio_wb32(pb, 0); /* reserved */
2768 avio_wb32(pb, 0); /* reserved */
2769 avio_wb32(pb, 0); /* reserved */
2770 if (!track || track->mode == MODE_MOV)
2771 avio_w8(pb, strlen(descr)); /* pascal string */
2772 avio_write(pb, descr, strlen(descr)); /* handler description */
2773 if (track && track->mode != MODE_MOV)
2774 avio_w8(pb, 0); /* c string */
2775 return update_size(pb, pos);
2776 }
2777
2778 static int mov_write_hmhd_tag(AVIOContext *pb)
2779 {
2780 /* This atom must be present, but leaving the values at zero
2781 * seems harmless. */
2782 avio_wb32(pb, 28); /* size */
2783 ffio_wfourcc(pb, "hmhd");
2784 avio_wb32(pb, 0); /* version, flags */
2785 avio_wb16(pb, 0); /* maxPDUsize */
2786 avio_wb16(pb, 0); /* avgPDUsize */
2787 avio_wb32(pb, 0); /* maxbitrate */
2788 avio_wb32(pb, 0); /* avgbitrate */
2789 avio_wb32(pb, 0); /* reserved */
2790 return 28;
2791 }
2792
2793 static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
2794 {
2795 int64_t pos = avio_tell(pb);
2796 int ret;
2797
2798 avio_wb32(pb, 0); /* size */
2799 ffio_wfourcc(pb, "minf");
2800 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2801 mov_write_vmhd_tag(pb);
2802 else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2803 mov_write_smhd_tag(pb);
2804 else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2805 if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2806 mov_write_gmhd_tag(pb, track);
2807 } else {
2808 mov_write_nmhd_tag(pb);
2809 }
2810 } else if (track->tag == MKTAG('r','t','p',' ')) {
2811 mov_write_hmhd_tag(pb);
2812 } else if (track->tag == MKTAG('t','m','c','d')) {
2813 if (track->mode != MODE_MOV)
2814 mov_write_nmhd_tag(pb);
2815 else
2816 mov_write_gmhd_tag(pb, track);
2817 } else if (track->tag == MKTAG('g','p','m','d')) {
2818 mov_write_gmhd_tag(pb, track);
2819 }
2820 if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2821 mov_write_hdlr_tag(s, pb, NULL);
2822 mov_write_dinf_tag(pb);
2823 if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2824 return ret;
2825 return update_size(pb, pos);
2826 }
2827
2828 static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track)
2829 {
2830 if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) {
2831 // tmcd tracks gets track_duration set in mov_write_moov_tag from
2832 // another track's duration, while the end_pts may be left at zero.
2833 // Calculate the pts duration for that track instead.
2834 return av_rescale(calc_pts_duration(mov, &mov->tracks[track->src_track]),
2835 track->timescale, mov->tracks[track->src_track].timescale);
2836 }
2837 if (track->end_pts != AV_NOPTS_VALUE &&
2838 track->start_dts != AV_NOPTS_VALUE &&
2839 track->start_cts != AV_NOPTS_VALUE) {
2840 return track->end_pts - (track->start_dts + track->start_cts);
2841 }
2842 return track->track_duration;
2843 }
2844
2845 static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2846 MOVTrack *track)
2847 {
2848 int64_t duration = calc_pts_duration(mov, track);
2849 int version = duration < INT32_MAX ? 0 : 1;
2850
2851 if (track->mode == MODE_ISM)
2852 version = 1;
2853
2854 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2855 ffio_wfourcc(pb, "mdhd");
2856 avio_w8(pb, version);
2857 avio_wb24(pb, 0); /* flags */
2858 if (version == 1) {
2859 avio_wb64(pb, track->time);
2860 avio_wb64(pb, track->time);
2861 } else {
2862 avio_wb32(pb, track->time); /* creation time */
2863 avio_wb32(pb, track->time); /* modification time */
2864 }
2865 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2866 if (!track->entry && mov->mode == MODE_ISM)
2867 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2868 else if (!track->entry)
2869 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2870 else
2871 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */
2872 avio_wb16(pb, track->language); /* language */
2873 avio_wb16(pb, 0); /* reserved (quality) */
2874
2875 if (version != 0 && track->mode == MODE_MOV) {
2876 av_log(NULL, AV_LOG_ERROR,
2877 "FATAL error, file duration too long for timebase, this file will not be\n"
2878 "playable with QuickTime. Choose a different timebase with "
2879 "-video_track_timescale or a different container format\n");
2880 }
2881
2882 return 32;
2883 }
2884
2885 static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb,
2886 MOVMuxContext *mov, MOVTrack *track)
2887 {
2888 int64_t pos = avio_tell(pb);
2889 int ret;
2890
2891 avio_wb32(pb, 0); /* size */
2892 ffio_wfourcc(pb, "mdia");
2893 mov_write_mdhd_tag(pb, mov, track);
2894 mov_write_hdlr_tag(s, pb, track);
2895 if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2896 return ret;
2897 return update_size(pb, pos);
2898 }
2899
2900 /* transformation matrix
2901 |a b u|
2902 |c d v|
2903 |tx ty w| */
2904 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2905 int16_t d, int16_t tx, int16_t ty)
2906 {
2907 avio_wb32(pb, a << 16); /* 16.16 format */
2908 avio_wb32(pb, b << 16); /* 16.16 format */
2909 avio_wb32(pb, 0); /* u in 2.30 format */
2910 avio_wb32(pb, c << 16); /* 16.16 format */
2911 avio_wb32(pb, d << 16); /* 16.16 format */
2912 avio_wb32(pb, 0); /* v in 2.30 format */
2913 avio_wb32(pb, tx << 16); /* 16.16 format */
2914 avio_wb32(pb, ty << 16); /* 16.16 format */
2915 avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2916 }
2917
2918 static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
2919 MOVTrack *track, AVStream *st)
2920 {
2921 int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
2922 MOV_TIMESCALE, track->timescale,
2923 AV_ROUND_UP);
2924 int version = duration < INT32_MAX ? 0 : 1;
2925 int flags = MOV_TKHD_FLAG_IN_MOVIE;
2926 int rotation = 0;
2927 int group = 0;
2928
2929 uint32_t *display_matrix = NULL;
2930 int display_matrix_size, i;
2931
2932 if (st) {
2933 if (mov->per_stream_grouping)
2934 group = st->index;
2935 else
2936 group = st->codecpar->codec_type;
2937
2938 display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2939 &display_matrix_size);
2940 if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2941 display_matrix = NULL;
2942 }
2943
2944 if (track->flags & MOV_TRACK_ENABLED)
2945 flags |= MOV_TKHD_FLAG_ENABLED;
2946
2947 if (track->mode == MODE_ISM)
2948 version = 1;
2949
2950 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2951 ffio_wfourcc(pb, "tkhd");
2952 avio_w8(pb, version);
2953 avio_wb24(pb, flags);
2954 if (version == 1) {
2955 avio_wb64(pb, track->time);
2956 avio_wb64(pb, track->time);
2957 } else {
2958 avio_wb32(pb, track->time); /* creation time */
2959 avio_wb32(pb, track->time); /* modification time */
2960 }
2961 avio_wb32(pb, track->track_id); /* track-id */
2962 avio_wb32(pb, 0); /* reserved */
2963 if (!track->entry && mov->mode == MODE_ISM)
2964 (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2965 else if (!track->entry)
2966 (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2967 else
2968 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2969
2970 avio_wb32(pb, 0); /* reserved */
2971 avio_wb32(pb, 0); /* reserved */
2972 avio_wb16(pb, 0); /* layer */
2973 avio_wb16(pb, group); /* alternate group) */
2974 /* Volume, only for audio */
2975 if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2976 avio_wb16(pb, 0x0100);
2977 else
2978 avio_wb16(pb, 0);
2979 avio_wb16(pb, 0); /* reserved */
2980
2981 /* Matrix structure */
2982 #if FF_API_OLD_ROTATE_API
2983 if (st && st->metadata) {
2984 AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2985 rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2986 }
2987 #endif
2988 if (display_matrix) {
2989 for (i = 0; i < 9; i++)
2990 avio_wb32(pb, display_matrix[i]);
2991 #if FF_API_OLD_ROTATE_API
2992 } else if (rotation == 90) {
2993 write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2994 } else if (rotation == 180) {
2995 write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2996 } else if (rotation == 270) {
2997 write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2998 #endif
2999 } else {
3000 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3001 }
3002 /* Track width and height, for visual only */
3003 if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
3004 track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
3005 int64_t track_width_1616;
3006 if (track->mode == MODE_MOV) {
3007 track_width_1616 = track->par->width * 0x10000ULL;
3008 } else {
3009 track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
3010 track->par->width * 0x10000LL,
3011 st->sample_aspect_ratio.den);
3012 if (!track_width_1616 ||
3013 track->height != track->par->height ||
3014 track_width_1616 > UINT32_MAX)
3015 track_width_1616 = track->par->width * 0x10000ULL;
3016 }
3017 if (track_width_1616 > UINT32_MAX) {
3018 av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
3019 track_width_1616 = 0;
3020 }
3021 avio_wb32(pb, track_width_1616);
3022 if (track->height > 0xFFFF) {
3023 av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
3024 avio_wb32(pb, 0);
3025 } else
3026 avio_wb32(pb, track->height * 0x10000U);
3027 } else {
3028 avio_wb32(pb, 0);
3029 avio_wb32(pb, 0);
3030 }
3031 return 0x5c;
3032 }
3033
3034 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
3035 {
3036 int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width,
3037 track->par->sample_aspect_ratio.den);
3038
3039 int64_t pos = avio_tell(pb);
3040
3041 avio_wb32(pb, 0); /* size */
3042 ffio_wfourcc(pb, "tapt");
3043
3044 avio_wb32(pb, 20);
3045 ffio_wfourcc(pb, "clef");
3046 avio_wb32(pb, 0);
3047 avio_wb32(pb, width << 16);
3048 avio_wb32(pb, track->par->height << 16);
3049
3050 avio_wb32(pb, 20);
3051 ffio_wfourcc(pb, "prof");
3052 avio_wb32(pb, 0);
3053 avio_wb32(pb, width << 16);
3054 avio_wb32(pb, track->par->height << 16);
3055
3056 avio_wb32(pb, 20);
3057 ffio_wfourcc(pb, "enof");
3058 avio_wb32(pb, 0);
3059 avio_wb32(pb, track->par->width << 16);
3060 avio_wb32(pb, track->par->height << 16);
3061
3062 return update_size(pb, pos);
3063 }
3064
3065 // This box seems important for the psp playback ... without it the movie seems to hang
3066 static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
3067 MOVTrack *track)
3068 {
3069 int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track),
3070 MOV_TIMESCALE, track->timescale,
3071 AV_ROUND_UP);
3072 int version = duration < INT32_MAX ? 0 : 1;
3073 int entry_size, entry_count, size;
3074 int64_t delay, start_ct = track->start_cts;
3075 int64_t start_dts = track->start_dts;
3076
3077 if (track->entry) {
3078 if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
3079
3080 av_log(mov->fc, AV_LOG_DEBUG,
3081 "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
3082 track->cluster[0].dts, track->cluster[0].cts,
3083 start_dts, start_ct, track->track_id);
3084 start_dts = track->cluster[0].dts;
3085 start_ct = track->cluster[0].cts;
3086 }
3087 }
3088
3089 delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
3090 track->timescale, AV_ROUND_DOWN);
3091 version |= delay < INT32_MAX ? 0 : 1;
3092
3093 entry_size = (version == 1) ? 20 : 12;
3094 entry_count = 1 + (delay > 0);
3095 size = 24 + entry_count * entry_size;
3096
3097 /* write the atom data */
3098 avio_wb32(pb, size);
3099 ffio_wfourcc(pb, "edts");
3100 avio_wb32(pb, size - 8);
3101 ffio_wfourcc(pb, "elst");
3102 avio_w8(pb, version);
3103 avio_wb24(pb, 0); /* flags */
3104
3105 avio_wb32(pb, entry_count);
3106 if (delay > 0) { /* add an empty edit to delay presentation */
3107 /* In the positive delay case, the delay includes the cts
3108 * offset, and the second edit list entry below trims out
3109 * the same amount from the actual content. This makes sure
3110 * that the offset last sample is included in the edit
3111 * list duration as well. */
3112 if (version == 1) {
3113 avio_wb64(pb, delay);
3114 avio_wb64(pb, -1);
3115 } else {
3116 avio_wb32(pb, delay);
3117 avio_wb32(pb, -1);
3118 }
3119 avio_wb32(pb, 0x00010000);
3120 } else {
3121 /* Avoid accidentally ending up with start_ct = -1 which has got a
3122 * special meaning. Normally start_ct should end up positive or zero
3123 * here, but use FFMIN in case dts is a small positive integer
3124 * rounded to 0 when represented in MOV_TIMESCALE units. */
3125 av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3126 start_ct = -FFMIN(start_dts, 0);
3127 /* Note, this delay is calculated from the pts of the first sample,
3128 * ensuring that we don't reduce the duration for cases with
3129 * dts<0 pts=0. */
3130 duration += delay;
3131 }
3132
3133 /* For fragmented files, we don't know the full length yet. Setting
3134 * duration to 0 allows us to only specify the offset, including
3135 * the rest of the content (from all future fragments) without specifying
3136 * an explicit duration. */
3137 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3138 duration = 0;
3139
3140 /* duration */
3141 if (version == 1) {
3142 avio_wb64(pb, duration);
3143 avio_wb64(pb, start_ct);
3144 } else {
3145 avio_wb32(pb, duration);
3146 avio_wb32(pb, start_ct);
3147 }
3148 avio_wb32(pb, 0x00010000);
3149 return size;
3150 }
3151
3152 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3153 {
3154 avio_wb32(pb, 20); // size
3155 ffio_wfourcc(pb, "tref");
3156 avio_wb32(pb, 12); // size (subatom)
3157 avio_wl32(pb, track->tref_tag);
3158 avio_wb32(pb, track->tref_id);
3159 return 20;
3160 }
3161
3162 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3163 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
3164 {
3165 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3166 ffio_wfourcc(pb, "uuid");
3167 ffio_wfourcc(pb, "USMT");
3168 avio_wb32(pb, 0x21d24fce);
3169 avio_wb32(pb, 0xbb88695c);
3170 avio_wb32(pb, 0xfac9c740);
3171 avio_wb32(pb, 0x1c); // another size here!
3172 ffio_wfourcc(pb, "MTDT");
3173 avio_wb32(pb, 0x00010012);
3174 avio_wb32(pb, 0x0a);
3175 avio_wb32(pb, 0x55c40000);
3176 avio_wb32(pb, 0x1);
3177 avio_wb32(pb, 0x0);
3178 return 0x34;
3179 }
3180
3181 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3182 {
3183 AVFormatContext *ctx = track->rtp_ctx;
3184 char buf[1000] = "";
3185 int len;
3186
3187 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3188 NULL, NULL, 0, 0, ctx);
3189 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3190 len = strlen(buf);
3191
3192 avio_wb32(pb, len + 24);
3193 ffio_wfourcc(pb, "udta");
3194 avio_wb32(pb, len + 16);
3195 ffio_wfourcc(pb, "hnti");
3196 avio_wb32(pb, len + 8);
3197 ffio_wfourcc(pb, "sdp ");
3198 avio_write(pb, buf, len);
3199 return len + 24;
3200 }
3201
3202 static int mov_write_track_metadata(AVIOContext *pb, AVStream *st,
3203 const char *tag, const char *str)
3204 {
3205 int64_t pos = avio_tell(pb);
3206 AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3207 if (!t || !utf8len(t->value))
3208 return 0;
3209
3210 avio_wb32(pb, 0); /* size */
3211 ffio_wfourcc(pb, tag); /* type */
3212 avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3213 return update_size(pb, pos);
3214 }
3215
3216 static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3217 AVStream *st)
3218 {
3219 AVIOContext *pb_buf;
3220 int ret, size;
3221 uint8_t *buf;
3222
3223 if (!st)
3224 return 0;
3225
3226 ret = avio_open_dyn_buf(&pb_buf);
3227 if (ret < 0)
3228 return ret;
3229
3230 if (mov->mode & (MODE_MP4|MODE_MOV))
3231 mov_write_track_metadata(pb_buf, st, "name", "title");
3232
3233 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3234 avio_wb32(pb, size + 8);
3235 ffio_wfourcc(pb, "udta");
3236 avio_write(pb, buf, size);
3237 }
3238 ffio_free_dyn_buf(&pb_buf);
3239
3240 return 0;
3241 }
3242
3243 static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov,
3244 MOVTrack *track, AVStream *st)
3245 {
3246 int64_t pos = avio_tell(pb);
3247 int entry_backup = track->entry;
3248 int chunk_backup = track->chunkCount;
3249 int ret;
3250
3251 /* If we want to have an empty moov, but some samples already have been
3252 * buffered (delay_moov), pretend that no samples have been written yet. */
3253 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3254 track->chunkCount = track->entry = 0;
3255
3256 avio_wb32(pb, 0); /* size */
3257 ffio_wfourcc(pb, "trak");
3258 mov_write_tkhd_tag(pb, mov, track, st);
3259
3260 av_assert2(mov->use_editlist >= 0);
3261
3262 if (track->start_dts != AV_NOPTS_VALUE) {
3263 if (mov->use_editlist)
3264 mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3265 else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3266 av_log(mov->fc, AV_LOG_WARNING,
3267 "Not writing any edit list even though one would have been required\n");
3268 }
3269
3270 if (track->tref_tag)
3271 mov_write_tref_tag(pb, track);
3272
3273 if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3274 return ret;
3275 if (track->mode == MODE_PSP)
3276 mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3277 if (track->tag == MKTAG('r','t','p',' '))
3278 mov_write_udta_sdp(pb, track);
3279 if (track->mode == MODE_MOV) {
3280 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3281 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3282 if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3283 mov_write_tapt_tag(pb, track);
3284 }
3285 }
3286 if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3287 mov_write_tapt_tag(pb, track);
3288 }
3289 }
3290 mov_write_track_udta_tag(pb, mov, st);
3291 track->entry = entry_backup;
3292 track->chunkCount = chunk_backup;
3293 return update_size(pb, pos);
3294 }
3295
3296 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
3297 {
3298 int i, has_audio = 0, has_video = 0;
3299 int64_t pos = avio_tell(pb);
3300 int audio_profile = mov->iods_audio_profile;
3301 int video_profile = mov->iods_video_profile;
3302 for (i = 0; i < mov->nb_streams; i++) {
3303 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3304 has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3305 has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3306 }
3307 }
3308 if (audio_profile < 0)
3309 audio_profile = 0xFF - has_audio;
3310 if (video_profile < 0)
3311 video_profile = 0xFF - has_video;
3312 avio_wb32(pb, 0x0); /* size */
3313 ffio_wfourcc(pb, "iods");
3314 avio_wb32(pb, 0); /* version & flags */
3315 put_descr(pb, 0x10, 7);
3316 avio_wb16(pb, 0x004f);
3317 avio_w8(pb, 0xff);
3318 avio_w8(pb, 0xff);
3319 avio_w8(pb, audio_profile);
3320 avio_w8(pb, video_profile);
3321 avio_w8(pb, 0xff);
3322 return update_size(pb, pos);
3323 }
3324
3325 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3326 {
3327 avio_wb32(pb, 0x20); /* size */
3328 ffio_wfourcc(pb, "trex");
3329 avio_wb32(pb, 0); /* version & flags */
3330 avio_wb32(pb, track->track_id); /* track ID */
3331 avio_wb32(pb, 1); /* default sample description index */
3332 avio_wb32(pb, 0); /* default sample duration */
3333 avio_wb32(pb, 0); /* default sample size */
3334 avio_wb32(pb, 0); /* default sample flags */
3335 return 0;
3336 }
3337
3338 static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov)
3339 {
3340 int64_t pos = avio_tell(pb);
3341 int i;
3342 avio_wb32(pb, 0x0); /* size */
3343 ffio_wfourcc(pb, "mvex");
3344 for (i = 0; i < mov->nb_streams; i++)
3345 mov_write_trex_tag(pb, &mov->tracks[i]);
3346 return update_size(pb, pos);
3347 }
3348
3349 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
3350 {
3351 int max_track_id = 1, i;
3352 int64_t max_track_len = 0;
3353 int version;
3354
3355 for (i = 0; i < mov->nb_streams; i++) {
3356 if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3357 int64_t max_track_len_temp = av_rescale_rnd(
3358 calc_pts_duration(mov, &mov->tracks[i]),
3359 MOV_TIMESCALE,
3360 mov->tracks[i].timescale,
3361 AV_ROUND_UP);
3362 if (max_track_len < max_track_len_temp)
3363 max_track_len = max_track_len_temp;
3364 if (max_track_id < mov->tracks[i].track_id)
3365 max_track_id = mov->tracks[i].track_id;
3366 }
3367 }
3368 /* If using delay_moov, make sure the output is the same as if no
3369 * samples had been written yet. */
3370 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3371 max_track_len = 0;
3372 max_track_id = 1;
3373 }
3374
3375 version = max_track_len < UINT32_MAX ? 0 : 1;
3376 avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3377
3378 ffio_wfourcc(pb, "mvhd");
3379 avio_w8(pb, version);
3380 avio_wb24(pb, 0); /* flags */
3381 if (version == 1) {
3382 avio_wb64(pb, mov->time);
3383 avio_wb64(pb, mov->time);
3384 } else {
3385 avio_wb32(pb, mov->time); /* creation time */
3386 avio_wb32(pb, mov->time); /* modification time */
3387 }
3388 avio_wb32(pb, MOV_TIMESCALE);
3389 (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3390
3391 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3392 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3393 avio_wb16(pb, 0); /* reserved */
3394 avio_wb32(pb, 0); /* reserved */
3395 avio_wb32(pb, 0); /* reserved */
3396
3397 /* Matrix structure */
3398 write_matrix(pb, 1, 0, 0, 1, 0, 0);
3399
3400 avio_wb32(pb, 0); /* reserved (preview time) */
3401 avio_wb32(pb, 0); /* reserved (preview duration) */
3402 avio_wb32(pb, 0); /* reserved (poster time) */
3403 avio_wb32(pb, 0); /* reserved (selection time) */
3404 avio_wb32(pb, 0); /* reserved (selection duration) */
3405 avio_wb32(pb, 0); /* reserved (current time) */
3406 avio_wb32(pb, max_track_id + 1); /* Next track id */
3407 return 0x6c;
3408 }
3409
3410 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3411 AVFormatContext *s)
3412 {
3413 avio_wb32(pb, 33); /* size */
3414 ffio_wfourcc(pb, "hdlr");
3415 avio_wb32(pb, 0);
3416 avio_wb32(pb, 0);
3417 ffio_wfourcc(pb, "mdir");
3418 ffio_wfourcc(pb, "appl");
3419 avio_wb32(pb, 0);
3420 avio_wb32(pb, 0);
3421 avio_w8(pb, 0);
3422 return 33;
3423 }
3424
3425 /* helper function to write a data tag with the specified string as data */
3426 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3427 {
3428 if (long_style) {
3429 int size = 16 + strlen(data);
3430 avio_wb32(pb, size); /* size */
3431 ffio_wfourcc(pb, "data");
3432 avio_wb32(pb, 1);
3433 avio_wb32(pb, 0);
3434 avio_write(pb, data, strlen(data));
3435 return size;
3436 } else {
3437 if (!lang)
3438 lang = ff_mov_iso639_to_lang("und", 1);
3439 avio_wb16(pb, strlen(data)); /* string length */
3440 avio_wb16(pb, lang);
3441 avio_write(pb, data, strlen(data));
3442 return strlen(data) + 4;
3443 }
3444 }
3445
3446 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3447 const char *value, int lang, int long_style)
3448 {
3449 int size = 0;
3450 if (value && value[0]) {
3451 int64_t pos = avio_tell(pb);
3452 avio_wb32(pb, 0); /* size */
3453 ffio_wfourcc(pb, name);
3454 mov_write_string_data_tag(pb, value, lang, long_style);
3455 size = update_size(pb, pos);
3456 }
3457 return size;
3458 }
3459
3460 static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s,
3461 const char *tag, int *lang)
3462 {
3463 int l, len, len2;
3464 AVDictionaryEntry *t, *t2 = NULL;
3465 char tag2[16];
3466
3467 *lang = 0;
3468
3469 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3470 return NULL;
3471
3472 len = strlen(t->key);
3473 snprintf(tag2, sizeof(tag2), "%s-", tag);
3474 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3475 len2 = strlen(t2->key);
3476 if (len2 == len + 4 && !strcmp(t->value, t2->value)
3477 && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3478 *lang = l;
3479 return t;
3480 }
3481 }
3482 return t;
3483 }
3484
3485 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
3486 const char *name, const char *tag,
3487 int long_style)
3488 {
3489 int lang;
3490 AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3491 if (!t)
3492 return 0;
3493 return mov_write_string_tag(pb, name, t->value, lang, long_style);
3494 }
3495
3496 /* iTunes bpm number */
3497 static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s)
3498 {
3499 AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3500 int size = 0, tmpo = t ? atoi(t->value) : 0;
3501 if (tmpo) {
3502 size = 26;
3503 avio_wb32(pb, size);
3504 ffio_wfourcc(pb, "tmpo");
3505 avio_wb32(pb, size-8); /* size */
3506 ffio_wfourcc(pb, "data");
3507 avio_wb32(pb, 0x15); //type specifier
3508 avio_wb32(pb, 0);
3509 avio_wb16(pb, tmpo); // data
3510 }
3511 return size;
3512 }
3513
3514 /* 3GPP TS 26.244 */
3515 static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
3516 {
3517 int lang;
3518 int64_t pos = avio_tell(pb);
3519 double latitude, longitude, altitude;
3520 int32_t latitude_fix, longitude_fix, altitude_fix;
3521 AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3522 const char *ptr, *place = "";
3523 char *end;
3524 static const char *astronomical_body = "earth";
3525 if (!t)
3526 return 0;
3527
3528 ptr = t->value;
3529 longitude = strtod(ptr, &end);
3530 if (end == ptr) {
3531 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3532 return 0;
3533 }
3534 ptr = end;
3535 latitude = strtod(ptr, &end);
3536 if (end == ptr) {
3537 av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3538 return 0;
3539 }
3540 ptr = end;
3541 altitude = strtod(ptr, &end);
3542 /* If no altitude was present, the default 0 should be fine */
3543 if (*end == '/')
3544 place = end + 1;
3545
3546 latitude_fix = (int32_t) ((1 << 16) * latitude);
3547 longitude_fix = (int32_t) ((1 << 16) * longitude);
3548 altitude_fix = (int32_t) ((1 << 16) * altitude);
3549
3550 avio_wb32(pb, 0); /* size */
3551 ffio_wfourcc(pb, "loci"); /* type */
3552 avio_wb32(pb, 0); /* version + flags */
3553 avio_wb16(pb, lang);
3554 avio_write(pb, place, strlen(place) + 1);
3555 avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3556 avio_wb32(pb, latitude_fix);
3557 avio_wb32(pb, longitude_fix);
3558 avio_wb32(pb, altitude_fix);
3559 avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3560 avio_w8(pb, 0); /* additional notes, null terminated string */
3561
3562 return update_size(pb, pos);
3563 }
3564
3565 /* iTunes track or disc number */
3566 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
3567 AVFormatContext *s, int disc)
3568 {
3569 AVDictionaryEntry *t = av_dict_get(s->metadata,
3570 disc ? "disc" : "track",
3571 NULL, 0);
3572 int size = 0, track = t ? atoi(t->value) : 0;
3573 if (track) {
3574 int tracks = 0;
3575 char *slash = strchr(t->value, '/');
3576 if (slash)
3577 tracks = atoi(slash + 1);
3578 avio_wb32(pb, 32); /* size */
3579 ffio_wfourcc(pb, disc ? "disk" : "trkn");
3580 avio_wb32(pb, 24); /* size */
3581 ffio_wfourcc(pb, "data");
3582 avio_wb32(pb, 0); // 8 bytes empty
3583 avio_wb32(pb, 0);
3584 avio_wb16(pb, 0); // empty
3585 avio_wb16(pb, track); // track / disc number
3586 avio_wb16(pb, tracks); // total track / disc number
3587 avio_wb16(pb, 0); // empty
3588 size = 32;
3589 }
3590 return size;
3591 }
3592
3593 static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb,
3594 const char *name, const char *tag,
3595 int len)
3596 {
3597 AVDictionaryEntry *t = NULL;
3598 uint8_t num;
3599 int size = 24 + len;
3600
3601 if (len != 1 && len != 4)
3602 return -1;
3603
3604 if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3605 return 0;
3606 num = atoi(t->value);
3607
3608 avio_wb32(pb, size);
3609 ffio_wfourcc(pb, name);
3610 avio_wb32(pb, size - 8);
3611 ffio_wfourcc(pb, "data");
3612 avio_wb32(pb, 0x15);
3613 avio_wb32(pb, 0);
3614 if (len==4) avio_wb32(pb, num);
3615 else avio_w8 (pb, num);
3616
3617 return size;
3618 }
3619
3620 static int mov_write_covr(AVIOContext *pb, AVFormatContext *s)
3621 {
3622 MOVMuxContext *mov = s->priv_data;
3623 int64_t pos = 0;
3624 int i;
3625
3626 for (i = 0; i < s->nb_streams; i++) {
3627 MOVTrack *trk = &mov->tracks[i];
3628
3629 if (!is_cover_image(trk->st) || trk->cover_image.size <= 0)
3630 continue;
3631
3632 if (!pos) {
3633 pos = avio_tell(pb);
3634 avio_wb32(pb, 0);
3635 ffio_wfourcc(pb, "covr");
3636 }
3637 avio_wb32(pb, 16 + trk->cover_image.size);
3638 ffio_wfourcc(pb, "data");
3639 avio_wb32(pb, trk->tag);
3640 avio_wb32(pb , 0);
3641 avio_write(pb, trk->cover_image.data, trk->cover_image.size);
3642 }
3643
3644 return pos ? update_size(pb, pos) : 0;
3645 }
3646
3647 /* iTunes meta data list */
3648 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3649 AVFormatContext *s)
3650 {
3651 int64_t pos = avio_tell(pb);
3652 avio_wb32(pb, 0); /* size */
3653 ffio_wfourcc(pb, "ilst");
3654 mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3655 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3656 mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3657 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3658 mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3659 mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3660 if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3661 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3662 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3663 }
3664 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3665 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3666 mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3667 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3668 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3669 mov_write_string_metadata(s, pb, "desc", "description",1);
3670 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3671 mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3672 mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3673 mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3674 mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3675 mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3676 mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3677 mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3678 mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3679 mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3680 mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3681 mov_write_covr(pb, s);
3682 mov_write_trkn_tag(pb, mov, s, 0); // track number
3683 mov_write_trkn_tag(pb, mov, s, 1); // disc number
3684 mov_write_tmpo_tag(pb, s);
3685 return update_size(pb, pos);
3686 }
3687
3688 static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
3689 AVFormatContext *s)
3690 {
3691 avio_wb32(pb, 33); /* size */
3692 ffio_wfourcc(pb, "hdlr");
3693 avio_wb32(pb, 0);
3694 avio_wb32(pb, 0);
3695 ffio_wfourcc(pb, "mdta");
3696 avio_wb32(pb, 0);
3697 avio_wb32(pb, 0);
3698 avio_wb32(pb, 0);
3699 avio_w8(pb, 0);
3700 return 33;
3701 }
3702
3703 static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov,
3704 AVFormatContext *s)
3705 {
3706 AVDictionaryEntry *t = NULL;
3707 int64_t pos = avio_tell(pb);
3708 int64_t curpos, entry_pos;
3709 int count = 0;
3710
3711 avio_wb32(pb, 0); /* size */
3712 ffio_wfourcc(pb, "keys");
3713 avio_wb32(pb, 0);
3714 entry_pos = avio_tell(pb);
3715 avio_wb32(pb, 0); /* entry count */
3716
3717 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3718 avio_wb32(pb, strlen(t->key) + 8);
3719 ffio_wfourcc(pb, "mdta");
3720 avio_write(pb, t->key, strlen(t->key));
3721 count += 1;
3722 }
3723 curpos = avio_tell(pb);
3724 avio_seek(pb, entry_pos, SEEK_SET);
3725 avio_wb32(pb, count); // rewrite entry count
3726 avio_seek(pb, curpos, SEEK_SET);
3727
3728 return update_size(pb, pos);
3729 }
3730
3731 static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
3732 AVFormatContext *s)
3733 {
3734 AVDictionaryEntry *t = NULL;
3735 int64_t pos = avio_tell(pb);
3736 int count = 1; /* keys are 1-index based */
3737
3738 avio_wb32(pb, 0); /* size */
3739 ffio_wfourcc(pb, "ilst");
3740
3741 while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3742 int64_t entry_pos = avio_tell(pb);
3743 avio_wb32(pb, 0); /* size */
3744 avio_wb32(pb, count); /* key */
3745 mov_write_string_data_tag(pb, t->value, 0, 1);
3746 update_size(pb, entry_pos);
3747 count += 1;
3748 }
3749 return update_size(pb, pos);
3750 }
3751
3752 /* meta data tags */
3753 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
3754 AVFormatContext *s)
3755 {
3756 int size = 0;
3757 int64_t pos = avio_tell(pb);
3758 avio_wb32(pb, 0); /* size */
3759 ffio_wfourcc(pb, "meta");
3760 avio_wb32(pb, 0);
3761 if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3762 mov_write_mdta_hdlr_tag(pb, mov, s);
3763 mov_write_mdta_keys_tag(pb, mov, s);
3764 mov_write_mdta_ilst_tag(pb, mov, s);
3765 }
3766 else {
3767 /* iTunes metadata tag */
3768 mov_write_itunes_hdlr_tag(pb, mov, s);
3769 mov_write_ilst_tag(pb, mov, s);
3770 }
3771 size = update_size(pb, pos);
3772 return size;
3773 }
3774
3775 static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb,
3776 const char *name, const char *key)
3777 {
3778 int len;
3779 AVDictionaryEntry *t;
3780
3781 if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3782 return 0;
3783
3784 len = strlen(t->value);
3785 if (len > 0) {
3786 int size = len + 8;
3787 avio_wb32(pb, size);
3788 ffio_wfourcc(pb, name);
3789 avio_write(pb, t->value, len);
3790 return size;
3791 }
3792 return 0;
3793 }
3794
3795 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3796 {
3797 int val;
3798 while (*b) {
3799 GET_UTF8(val, *b++, return -1;)
3800 avio_wb16(pb, val);
3801 }
3802 avio_wb16(pb, 0x00);
3803 return 0;
3804 }
3805
3806 static uint16_t language_code(const char *str)
3807 {
3808 return (((str[0] - 0x60) & 0x1F) << 10) +
3809 (((str[1] - 0x60) & 0x1F) << 5) +
3810 (( str[2] - 0x60) & 0x1F);
3811 }
3812
3813 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
3814 const char *tag, const char *str)
3815 {
3816 int64_t pos = avio_tell(pb);
3817 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3818 if (!t || !utf8len(t->value))
3819 return 0;
3820 avio_wb32(pb, 0); /* size */
3821 ffio_wfourcc(pb, tag); /* type */
3822 avio_wb32(pb, 0); /* version + flags */
3823 if (!strcmp(tag, "yrrc"))
3824 avio_wb16(pb, atoi(t->value));
3825 else {
3826 avio_wb16(pb, language_code("eng")); /* language */
3827 avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3828 if (!strcmp(tag, "albm") &&
3829 (t = av_dict_get(s->metadata, "track", NULL, 0)))
3830 avio_w8(pb, atoi(t->value));
3831 }
3832 return update_size(pb, pos);
3833 }
3834
3835 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
3836 {
3837 int64_t pos = avio_tell(pb);
3838 int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3839
3840 avio_wb32(pb, 0); // size
3841 ffio_wfourcc(pb, "chpl");
3842 avio_wb32(pb, 0x01000000); // version + flags
3843 avio_wb32(pb, 0); // unknown
3844 avio_w8(pb, nb_chapters);
3845
3846 for (i = 0; i < nb_chapters; i++) {
3847 AVChapter *c = s->chapters[i];
3848 AVDictionaryEntry *t;
3849 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3850
3851 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3852 int len = FFMIN(strlen(t->value), 255);
3853 avio_w8(pb, len);
3854 avio_write(pb, t->value, len);
3855 } else
3856 avio_w8(pb, 0);
3857 }
3858 return update_size(pb, pos);
3859 }
3860
3861 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
3862 AVFormatContext *s)
3863 {
3864 AVIOContext *pb_buf;
3865 int ret, size;
3866 uint8_t *buf;
3867
3868 ret = avio_open_dyn_buf(&pb_buf);
3869 if (ret < 0)
3870 return ret;
3871
3872 if (mov->mode & MODE_3GP) {
3873 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3874 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3875 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3876 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3877 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3878 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3879 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3880 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3881 mov_write_loci_tag(s, pb_buf);
3882 } 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
3883 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3884 mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3885 mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3886 mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3887 mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3888 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3889 // currently ignored by mov.c
3890 mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3891 // add support for libquicktime, this atom is also actually read by mov.c
3892 mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3893 mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3894 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3895 mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3896 mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3897 mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3898 mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3899 mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3900 } else {
3901 /* iTunes meta data */
3902 mov_write_meta_tag(pb_buf, mov, s);
3903 mov_write_loci_tag(s, pb_buf);
3904 }
3905
3906 if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3907 mov_write_chpl_tag(pb_buf, s);
3908
3909 if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) {
3910 avio_wb32(pb, size + 8);
3911 ffio_wfourcc(pb, "udta");
3912 avio_write(pb, buf, size);
3913 }
3914 ffio_free_dyn_buf(&pb_buf);
3915
3916 return 0;
3917 }
3918
3919 static void mov_write_psp_udta_tag(AVIOContext *pb,
3920 const char *str, const char *lang, int type)
3921 {
3922 int len = utf8len(str) + 1;
3923 if (len <= 0)
3924 return;
3925 avio_wb16(pb, len * 2 + 10); /* size */
3926 avio_wb32(pb, type); /* type */
3927 avio_wb16(pb, language_code(lang)); /* language */
3928 avio_wb16(pb, 0x01); /* ? */
3929 ascii_to_wc(pb, str);
3930 }
3931
3932 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
3933 {
3934 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3935 int64_t pos, pos2;
3936
3937 if (title) {
3938 pos = avio_tell(pb);
3939 avio_wb32(pb, 0); /* size placeholder*/
3940 ffio_wfourcc(pb, "uuid");
3941 ffio_wfourcc(pb, "USMT");
3942 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3943 avio_wb32(pb, 0xbb88695c);
3944 avio_wb32(pb, 0xfac9c740);
3945
3946 pos2 = avio_tell(pb);
3947 avio_wb32(pb, 0); /* size placeholder*/
3948 ffio_wfourcc(pb, "MTDT");
3949 avio_wb16(pb, 4);
3950
3951 // ?
3952 avio_wb16(pb, 0x0C); /* size */
3953 avio_wb32(pb, 0x0B); /* type */
3954 avio_wb16(pb, language_code("und")); /* language */
3955 avio_wb16(pb, 0x0); /* ? */
3956 avio_wb16(pb, 0x021C); /* data */
3957
3958 if (!(s->flags & AVFMT_FLAG_BITEXACT))
3959 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3960 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3961 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3962
3963 update_size(pb, pos2);
3964 return update_size(pb, pos);
3965 }
3966
3967 return 0;
3968 }
3969
3970 static void build_chunks(MOVTrack *trk)
3971 {
3972 int i;
3973 MOVIentry *chunk = &trk->cluster[0];
3974 uint64_t chunkSize = chunk->size;
3975 chunk->chunkNum = 1;
3976 if (trk->chunkCount)
3977 return;
3978 trk->chunkCount = 1;
3979 for (i = 1; i<trk->entry; i++){
3980 if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3981 chunkSize + trk->cluster[i].size < (1<<20)){
3982 chunkSize += trk->cluster[i].size;
3983 chunk->samples_in_chunk += trk->cluster[i].entries;
3984 } else {
3985 trk->cluster[i].chunkNum = chunk->chunkNum+1;
3986 chunk=&trk->cluster[i];
3987 chunkSize = chunk->size;
3988 trk->chunkCount++;
3989 }
3990 }
3991 }
3992
3993 /**
3994 * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
3995 * the stream ids are used as track ids.
3996 *
3997 * This assumes mov->tracks and s->streams are in the same order and
3998 * there are no gaps in either of them (so mov->tracks[n] refers to
3999 * s->streams[n]).
4000 *
4001 * As an exception, there can be more entries in
4002 * s->streams than in mov->tracks, in which case new track ids are
4003 * generated (starting after the largest found stream id).
4004 */
4005 static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s)
4006 {
4007 int i;
4008
4009 if (mov->track_ids_ok)
4010 return 0;
4011
4012 if (mov->use_stream_ids_as_track_ids) {
4013 int next_generated_track_id = 0;
4014 for (i = 0; i < s->nb_streams; i++) {
4015 if (s->streams[i]->id > next_generated_track_id)
4016 next_generated_track_id = s->streams[i]->id;
4017 }
4018
4019 for (i = 0; i < mov->nb_streams; i++) {
4020 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4021 continue;
4022
4023 mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
4024 }
4025 } else {
4026 for (i = 0; i < mov->nb_streams; i++) {
4027 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4028 continue;
4029
4030 mov->tracks[i].track_id = i + 1;
4031 }
4032 }
4033
4034 mov->track_ids_ok = 1;
4035
4036 return 0;
4037 }
4038
4039 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
4040 AVFormatContext *s)
4041 {
4042 int i;
4043 int64_t pos = avio_tell(pb);
4044 avio_wb32(pb, 0); /* size placeholder*/
4045 ffio_wfourcc(pb, "moov");
4046
4047 mov_setup_track_ids(mov, s);
4048
4049 for (i = 0; i < mov->nb_streams; i++) {
4050 if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
4051 continue;
4052
4053 mov->tracks[i].time = mov->time;
4054
4055 if (mov->tracks[i].entry)
4056 build_chunks(&mov->tracks[i]);
4057 }
4058
4059 if (mov->chapter_track)
4060 for (i = 0; i < s->nb_streams; i++) {
4061 mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
4062 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
4063 }
4064 for (i = 0; i < mov->nb_streams; i++) {
4065 MOVTrack *track = &mov->tracks[i];
4066 if (track->tag == MKTAG('r','t','p',' ')) {
4067 track->tref_tag = MKTAG('h','i','n','t');
4068 track->tref_id = mov->tracks[track->src_track].track_id;
4069 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4070 int * fallback, size;
4071 fallback = (int*)av_stream_get_side_data(track->st,
4072 AV_PKT_DATA_FALLBACK_TRACK,
4073 &size);
4074 if (fallback != NULL && size == sizeof(int)) {
4075 if (*fallback >= 0 && *fallback < mov->nb_streams) {
4076 track->tref_tag = MKTAG('f','a','l','l');
4077 track->tref_id = mov->tracks[*fallback].track_id;
4078 }
4079 }
4080 }
4081 }
4082 for (i = 0; i < mov->nb_streams; i++) {
4083 if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
4084 int src_trk = mov->tracks[i].src_track;
4085 mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
4086 mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
4087 //src_trk may have a different timescale than the tmcd track
4088 mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
4089 mov->tracks[i].timescale,
4090 mov->tracks[src_trk].timescale);
4091 }
4092 }
4093
4094 mov_write_mvhd_tag(pb, mov);
4095 if (mov->mode != MODE_MOV && !mov->iods_skip)
4096 mov_write_iods_tag(pb, mov);
4097 for (i = 0; i < mov->nb_streams; i++) {
4098 if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
4099 int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
4100 if (ret < 0)
4101 return ret;
4102 }
4103 }
4104 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4105 mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
4106
4107 if (mov->mode == MODE_PSP)
4108 mov_write_uuidusmt_tag(pb, s);
4109 else
4110 mov_write_udta_tag(pb, mov, s);
4111
4112 return update_size(pb, pos);
4113 }
4114
4115 static void param_write_int(AVIOContext *pb, const char *name, int value)
4116 {
4117 avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
4118 }
4119
4120 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
4121 {
4122 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4123 }
4124
4125 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4126 {
4127 char buf[150];
4128 len = FFMIN(sizeof(buf) / 2 - 1, len);
4129 ff_data_to_hex(buf, value, len, 0);
4130 buf[2 * len] = '\0';
4131 avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4132 }
4133
4134 static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s)
4135 {
4136 int64_t pos = avio_tell(pb);
4137 int i;
4138 int64_t manifest_bit_rate = 0;
4139 AVCPBProperties *props = NULL;
4140
4141 static const uint8_t uuid[] = {
4142 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4143 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4144 };
4145
4146 avio_wb32(pb, 0);
4147 ffio_wfourcc(pb, "uuid");
4148 avio_write(pb, uuid, sizeof(uuid));
4149 avio_wb32(pb, 0);
4150
4151 avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4152 avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4153 avio_printf(pb, "<head>\n");
4154 if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4155 avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4156 LIBAVFORMAT_IDENT);
4157 avio_printf(pb, "</head>\n");
4158 avio_printf(pb, "<body>\n");
4159 avio_printf(pb, "<switch>\n");
4160
4161 mov_setup_track_ids(mov, s);
4162
4163 for (i = 0; i < mov->nb_streams; i++) {
4164 MOVTrack *track = &mov->tracks[i];
4165 const char *type;
4166 int track_id = track->track_id;
4167 char track_name_buf[32] = { 0 };
4168
4169 AVStream *st = track->st;
4170 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4171
4172 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) {
4173 type = "video";
4174 } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4175 type = "audio";
4176 } else {
4177 continue;
4178 }
4179
4180 props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES, NULL);
4181
4182 if (track->par->bit_rate) {
4183 manifest_bit_rate = track->par->bit_rate;
4184 } else if (props) {
4185 manifest_bit_rate = props->max_bitrate;
4186 }
4187
4188 avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
4189 manifest_bit_rate);
4190 param_write_int(pb, "systemBitrate", manifest_bit_rate);
4191 param_write_int(pb, "trackID", track_id);
4192 param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
4193
4194 /* Build track name piece by piece: */
4195 /* 1. track type */
4196 av_strlcat(track_name_buf, type, sizeof(track_name_buf));
4197 /* 2. track language, if available */
4198 if (lang)
4199 av_strlcatf(track_name_buf, sizeof(track_name_buf),
4200 "_%s", lang->value);
4201 /* 3. special type suffix */
4202 /* "_cc" = closed captions, "_ad" = audio_description */
4203 if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
4204 av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
4205 else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
4206 av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
4207
4208 param_write_string(pb, "trackName", track_name_buf);
4209
4210 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4211 if (track->par->codec_id == AV_CODEC_ID_H264) {
4212 uint8_t *ptr;
4213 int size = track->par->extradata_size;
4214 if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
4215 &size)) {
4216 param_write_hex(pb, "CodecPrivateData",
4217 ptr ? ptr : track->par->extradata,
4218 size);
4219 av_free(ptr);
4220 }
4221 param_write_string(pb, "FourCC", "H264");
4222 } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
4223 param_write_string(pb, "FourCC", "WVC1");
4224 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4225 track->par->extradata_size);
4226 }
4227 param_write_int(pb, "MaxWidth", track->par->width);
4228 param_write_int(pb, "MaxHeight", track->par->height);
4229 param_write_int(pb, "DisplayWidth", track->par->width);
4230 param_write_int(pb, "DisplayHeight", track->par->height);
4231 } else {
4232 if (track->par->codec_id == AV_CODEC_ID_AAC) {
4233 switch (track->par->profile)
4234 {
4235 case FF_PROFILE_AAC_HE_V2:
4236 param_write_string(pb, "FourCC", "AACP");
4237 break;
4238 case FF_PROFILE_AAC_HE:
4239 param_write_string(pb, "FourCC", "AACH");
4240 break;
4241 default:
4242 param_write_string(pb, "FourCC", "AACL");
4243 }
4244 } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
4245 param_write_string(pb, "FourCC", "WMAP");
4246 }
4247 param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4248 track->par->extradata_size);
4249 param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags,
4250 track->par->codec_id));
4251 param_write_int(pb, "Channels", track->par->channels);
4252 param_write_int(pb, "SamplingRate", track->par->sample_rate);
4253 param_write_int(pb, "BitsPerSample", 16);
4254 param_write_int(pb, "PacketSize", track->par->block_align ?
4255 track->par->block_align : 4);
4256 }
4257 avio_printf(pb, "</%s>\n", type);
4258 }
4259 avio_printf(pb, "</switch>\n");
4260 avio_printf(pb, "</body>\n");
4261 avio_printf(pb, "</smil>\n");
4262
4263 return update_size(pb, pos);
4264 }
4265
4266 static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
4267 {
4268 avio_wb32(pb, 16);
4269 ffio_wfourcc(pb, "mfhd");
4270 avio_wb32(pb, 0);
4271 avio_wb32(pb, mov->fragments);
4272 return 0;
4273 }
4274
4275 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
4276 {
4277 return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO :
4278 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC);
4279 }
4280
4281 static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov,
4282 MOVTrack *track, int64_t moof_offset)
4283 {
4284 int64_t pos = avio_tell(pb);
4285 uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4286 MOV_TFHD_BASE_DATA_OFFSET;
4287 if (!track->entry) {
4288 flags |= MOV_TFHD_DURATION_IS_EMPTY;
4289 } else {
4290 flags |= MOV_TFHD_DEFAULT_FLAGS;
4291 }
4292 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET)
4293 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4294 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
4295 flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4296 flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF;
4297 }
4298 /* CMAF requires all values to be explicit in tfhd atoms */
4299 if (mov->flags & FF_MOV_FLAG_CMAF)
4300 flags |= MOV_TFHD_STSD_ID;
4301
4302 /* Don't set a default sample size, the silverlight player refuses
4303 * to play files with that set. Don't set a default sample duration,
4304 * WMP freaks out if it is set. Don't set a base data offset, PIFF
4305 * file format says it MUST NOT be set. */
4306 if (track->mode == MODE_ISM)
4307 flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION |
4308 MOV_TFHD_BASE_DATA_OFFSET | MOV_TFHD_STSD_ID);
4309
4310 avio_wb32(pb, 0); /* size placeholder */
4311 ffio_wfourcc(pb, "tfhd");
4312 avio_w8(pb, 0); /* version */
4313 avio_wb24(pb, flags);
4314
4315 avio_wb32(pb, track->track_id); /* track-id */
4316 if (flags & MOV_TFHD_BASE_DATA_OFFSET)
4317 avio_wb64(pb, moof_offset);
4318 if (flags & MOV_TFHD_STSD_ID) {
4319 avio_wb32(pb, 1);
4320 }
4321 if (flags & MOV_TFHD_DEFAULT_DURATION) {
4322 track->default_duration = get_cluster_duration(track, 0);
4323 avio_wb32(pb, track->default_duration);
4324 }
4325 if (flags & MOV_TFHD_DEFAULT_SIZE) {
4326 track->default_size = track->entry ? track->cluster[0].size : 1;
4327 avio_wb32(pb, track->default_size);
4328 } else
4329 track->default_size = -1;
4330
4331 if (flags & MOV_TFHD_DEFAULT_FLAGS) {
4332 /* Set the default flags based on the second sample, if available.
4333 * If the first sample is different, that can be signaled via a separate field. */
4334 if (track->entry > 1)
4335 track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
4336 else
4337 track->default_sample_flags =
4338 track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
4339 (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) :
4340 MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO;
4341 avio_wb32(pb, track->default_sample_flags);
4342 }
4343
4344 return update_size(pb, pos);
4345 }
4346
4347 static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov,
4348 MOVTrack *track, int moof_size,
4349 int first, int end)
4350 {
4351 int64_t pos = avio_tell(pb);
4352 uint32_t flags = MOV_TRUN_DATA_OFFSET;
4353 int i;
4354
4355 for (i = first; i < end; i++) {
4356 if (get_cluster_duration(track, i) != track->default_duration)
4357 flags |= MOV_TRUN_SAMPLE_DURATION;
4358 if (track->cluster[i].size != track->default_size)
4359 flags |= MOV_TRUN_SAMPLE_SIZE;
4360 if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
4361 flags |= MOV_TRUN_SAMPLE_FLAGS;
4362 }
4363 if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
4364 get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
4365 flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
4366 if (track->flags & MOV_TRACK_CTTS)
4367 flags |= MOV_TRUN_SAMPLE_CTS;
4368
4369 avio_wb32(pb, 0); /* size placeholder */
4370 ffio_wfourcc(pb, "trun");
4371 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4372 avio_w8(pb, 1); /* version */
4373 else
4374 avio_w8(pb, 0); /* version */
4375 avio_wb24(pb, flags);
4376
4377 avio_wb32(pb, end - first); /* sample count */
4378 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4379 !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) &&
4380 !mov->first_trun)
4381 avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
4382 else
4383 avio_wb32(pb, moof_size + 8 + track->data_offset +
4384 track->cluster[first].pos); /* data offset */
4385 if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
4386 avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
4387
4388 for (i = first; i < end; i++) {
4389 if (flags & MOV_TRUN_SAMPLE_DURATION)
4390 avio_wb32(pb, get_cluster_duration(track, i));
4391 if (flags & MOV_TRUN_SAMPLE_SIZE)
4392 avio_wb32(pb, track->cluster[i].size);
4393 if (flags & MOV_TRUN_SAMPLE_FLAGS)
4394 avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
4395 if (flags & MOV_TRUN_SAMPLE_CTS)
4396 avio_wb32(pb, track->cluster[i].cts);
4397 }
4398
4399 mov->first_trun = 0;
4400 return update_size(pb, pos);
4401 }
4402
4403 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
4404 {
4405 int64_t pos = avio_tell(pb);
4406 static const uint8_t uuid[] = {
4407 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
4408 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
4409 };
4410
4411 avio_wb32(pb, 0); /* size placeholder */
4412 ffio_wfourcc(pb, "uuid");
4413 avio_write(pb, uuid, sizeof(uuid));
4414 avio_w8(pb, 1);
4415 avio_wb24(pb, 0);
4416 avio_wb64(pb, track->start_dts + track->frag_start +
4417 track->cluster[0].cts);
4418 avio_wb64(pb, track->end_pts -
4419 (track->cluster[0].dts + track->cluster[0].cts));
4420
4421 return update_size(pb, pos);
4422 }
4423
4424 static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov,
4425 MOVTrack *track, int entry)
4426 {
4427 int n = track->nb_frag_info - 1 - entry, i;
4428 int size = 8 + 16 + 4 + 1 + 16*n;
4429 static const uint8_t uuid[] = {
4430 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
4431 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
4432 };
4433
4434 if (entry < 0)
4435 return 0;
4436
4437 avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
4438 avio_wb32(pb, size);
4439 ffio_wfourcc(pb, "uuid");
4440 avio_write(pb, uuid, sizeof(uuid));
4441 avio_w8(pb, 1);
4442 avio_wb24(pb, 0);
4443 avio_w8(pb, n);
4444 for (i = 0; i < n; i++) {
4445 int index = entry + 1 + i;
4446 avio_wb64(pb, track->frag_info[index].time);
4447 avio_wb64(pb, track->frag_info[index].duration);
4448 }
4449 if (n < mov->ism_lookahead) {
4450 int free_size = 16 * (mov->ism_lookahead - n);
4451 avio_wb32(pb, free_size);
4452 ffio_wfourcc(pb, "free");
4453 ffio_fill(pb, 0, free_size - 8);
4454 }
4455
4456 return 0;
4457 }
4458
4459 static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov,
4460 MOVTrack *track)
4461 {
4462 int64_t pos = avio_tell(pb);
4463 int i;
4464 for (i = 0; i < mov->ism_lookahead; i++) {
4465 /* Update the tfrf tag for the last ism_lookahead fragments,
4466 * nb_frag_info - 1 is the next fragment to be written. */
4467 mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
4468 }
4469 avio_seek(pb, pos, SEEK_SET);
4470 return 0;
4471 }
4472
4473 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4474 int size)
4475 {
4476 int i;
4477 for (i = 0; i < mov->nb_streams; i++) {
4478 MOVTrack *track = &mov->tracks[i];
4479 MOVFragmentInfo *info;
4480 if ((tracks >= 0 && i != tracks) || !track->entry)
4481 continue;
4482 track->nb_frag_info++;
4483 if (track->nb_frag_info >= track->frag_info_capacity) {
4484 unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
4485 if (av_reallocp_array(&track->frag_info,
4486 new_capacity,
4487 sizeof(*track->frag_info)))
4488 return AVERROR(ENOMEM);
4489 track->frag_info_capacity = new_capacity;
4490 }
4491 info = &track->frag_info[track->nb_frag_info - 1];
4492 info->offset = avio_tell(pb);
4493 info->size = size;
4494 // Try to recreate the original pts for the first packet
4495 // from the fields we have stored
4496 info->time = track->start_dts + track->frag_start +
4497 track->cluster[0].cts;
4498 info->duration = track->end_pts -
4499 (track->cluster[0].dts + track->cluster[0].cts);
4500 // If the pts is less than zero, we will have trimmed
4501 // away parts of the media track using an edit list,
4502 // and the corresponding start presentation time is zero.
4503 if (info->time < 0) {
4504 info->duration += info->time;
4505 info->time = 0;
4506 }
4507 info->tfrf_offset = 0;
4508 mov_write_tfrf_tags(pb, mov, track);
4509 }
4510 return 0;
4511 }
4512
4513 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
4514 {
4515 int i;
4516 for (i = 0; i < mov->nb_streams; i++) {
4517 MOVTrack *track = &mov->tracks[i];
4518 if ((tracks >= 0 && i != tracks) || !track->entry)
4519 continue;
4520 if (track->nb_frag_info > max) {
4521 memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
4522 track->nb_frag_info = max;
4523 }
4524 }
4525 }
4526
4527 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
4528 {
4529 int64_t pos = avio_tell(pb);
4530
4531 avio_wb32(pb, 0); /* size */
4532 ffio_wfourcc(pb, "tfdt");
4533 avio_w8(pb, 1); /* version */
4534 avio_wb24(pb, 0);
4535 avio_wb64(pb, track->frag_start);
4536 return update_size(pb, pos);
4537 }
4538
4539 static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov,
4540 MOVTrack *track, int64_t moof_offset,
4541 int moof_size)
4542 {
4543 int64_t pos = avio_tell(pb);
4544 int i, start = 0;
4545 avio_wb32(pb, 0); /* size placeholder */
4546 ffio_wfourcc(pb, "traf");
4547
4548 mov_write_tfhd_tag(pb, mov, track, moof_offset);
4549 if (mov->mode != MODE_ISM)
4550 mov_write_tfdt_tag(pb, track);
4551 for (i = 1; i < track->entry; i++) {
4552 if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) {
4553 mov_write_trun_tag(pb, mov, track, moof_size, start, i);
4554 start = i;
4555 }
4556 }
4557 mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry);
4558 if (mov->mode == MODE_ISM) {
4559 mov_write_tfxd_tag(pb, track);
4560
4561 if (mov->ism_lookahead) {
4562 int i, size = 16 + 4 + 1 + 16 * mov->ism_lookahead;
4563
4564 if (track->nb_frag_info > 0) {
4565 MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1];
4566 if (!info->tfrf_offset)
4567 info->tfrf_offset = avio_tell(pb);
4568 }
4569 avio_wb32(pb, 8 + size);
4570 ffio_wfourcc(pb, "free");
4571 for (i = 0; i < size; i++)
4572 avio_w8(pb, 0);
4573 }
4574 }
4575
4576 return update_size(pb, pos);
4577 }
4578
4579 static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov,
4580 int tracks, int moof_size)
4581 {
4582 int64_t pos = avio_tell(pb);
4583 int i;
4584
4585 avio_wb32(pb, 0); /* size placeholder */
4586 ffio_wfourcc(pb, "moof");
4587 mov->first_trun = 1;
4588
4589 mov_write_mfhd_tag(pb, mov);
4590 for (i = 0; i < mov->nb_streams; i++) {
4591 MOVTrack *track = &mov->tracks[i];
4592 if (tracks >= 0 && i != tracks)
4593 continue;
4594 if (!track->entry)
4595 continue;
4596 mov_write_traf_tag(pb, mov, track, pos, moof_size);
4597 }
4598
4599 return update_size(pb, pos);
4600 }
4601
4602 static int mov_write_sidx_tag(AVIOContext *pb,
4603 MOVTrack *track, int ref_size, int total_sidx_size)
4604 {
4605 int64_t pos = avio_tell(pb), offset_pos, end_pos;
4606 int64_t presentation_time, duration, offset;
4607 unsigned starts_with_SAP;
4608 int i, entries;
4609
4610 if (track->entry) {
4611 entries = 1;
4612 presentation_time = track->start_dts + track->frag_start +
4613 track->cluster[0].cts;
4614 duration = track->end_pts -
4615 (track->cluster[0].dts + track->cluster[0].cts);
4616 starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE;
4617
4618 // pts<0 should be cut away using edts
4619 if (presentation_time < 0) {
4620 duration += presentation_time;
4621 presentation_time = 0;
4622 }
4623 } else {
4624 entries = track->nb_frag_info;
4625 if (entries <= 0)
4626 return 0;
4627 presentation_time = track->frag_info[0].time;
4628 }
4629
4630 avio_wb32(pb, 0); /* size */
4631 ffio_wfourcc(pb, "sidx");
4632 avio_w8(pb, 1); /* version */
4633 avio_wb24(pb, 0);
4634 avio_wb32(pb, track->track_id); /* reference_ID */
4635 avio_wb32(pb, track->timescale); /* timescale */
4636 avio_wb64(pb, presentation_time); /* earliest_presentation_time */
4637 offset_pos = avio_tell(pb);
4638 avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */
4639 avio_wb16(pb, 0); /* reserved */
4640
4641 avio_wb16(pb, entries); /* reference_count */
4642 for (i = 0; i < entries; i++) {
4643 if (!track->entry) {
4644 if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) {
4645 av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n");
4646 }
4647 duration = track->frag_info[i].duration;
4648 ref_size = track->frag_info[i].size;
4649 starts_with_SAP = 1;
4650 }
4651 avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */
4652 avio_wb32(pb, duration); /* subsegment_duration */
4653 avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */
4654 }
4655
4656 end_pos = avio_tell(pb);
4657 offset = pos + total_sidx_size - end_pos;
4658 avio_seek(pb, offset_pos, SEEK_SET);
4659 avio_wb64(pb, offset);
4660 avio_seek(pb, end_pos, SEEK_SET);
4661 return update_size(pb, pos);
4662 }
4663
4664 static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov,
4665 int tracks, int ref_size)
4666 {
4667 int i, round, ret;
4668 AVIOContext *avio_buf;
4669 int total_size = 0;
4670 for (round = 0; round < 2; round++) {
4671 // First run one round to calculate the total size of all
4672 // sidx atoms.
4673 // This would be much simpler if we'd only write one sidx
4674 // atom, for the first track in the moof.
4675 if (round == 0) {
4676 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4677 return ret;
4678 } else {
4679 avio_buf = pb;
4680 }
4681 for (i = 0; i < mov->nb_streams; i++) {
4682 MOVTrack *track = &mov->tracks[i];
4683 if (tracks >= 0 && i != tracks)
4684 continue;
4685 // When writing a sidx for the full file, entry is 0, but
4686 // we want to include all tracks. ref_size is 0 in this case,
4687 // since we read it from frag_info instead.
4688 if (!track->entry && ref_size > 0)
4689 continue;
4690 total_size -= mov_write_sidx_tag(avio_buf, track, ref_size,
4691 total_size);
4692 }
4693 if (round == 0)
4694 total_size = ffio_close_null_buf(avio_buf);
4695 }
4696 return 0;
4697 }
4698
4699 static int mov_write_prft_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks)
4700 {
4701 int64_t pos = avio_tell(pb), pts_us, ntp_ts;
4702 MOVTrack *first_track;
4703 int flags = 24;
4704
4705 /* PRFT should be associated with at most one track. So, choosing only the
4706 * first track. */
4707 if (tracks > 0)
4708 return 0;
4709 first_track = &(mov->tracks[0]);
4710
4711 if (!first_track->entry) {
4712 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, no entries in the track\n");
4713 return 0;
4714 }
4715
4716 if (first_track->cluster[0].pts == AV_NOPTS_VALUE) {
4717 av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, first PTS is invalid\n");
4718 return 0;
4719 }
4720
4721 if (mov->write_prft == MOV_PRFT_SRC_WALLCLOCK) {
4722 if (first_track->cluster[0].prft.wallclock) {
4723 /* Round the NTP time to whole milliseconds. */
4724 ntp_ts = ff_get_formatted_ntp_time((first_track->cluster[0].prft.wallclock / 1000) * 1000 +
4725 NTP_OFFSET_US);
4726 flags = first_track->cluster[0].prft.flags;
4727 } else
4728 ntp_ts = ff_get_formatted_ntp_time(ff_ntp_time());
4729 } else if (mov->write_prft == MOV_PRFT_SRC_PTS) {
4730 pts_us = av_rescale_q(first_track->cluster[0].pts,
4731 first_track->st->time_base, AV_TIME_BASE_Q);
4732 ntp_ts = ff_get_formatted_ntp_time(pts_us + NTP_OFFSET_US);
4733 } else {
4734 av_log(mov->fc, AV_LOG_WARNING, "Unsupported PRFT box configuration: %d\n",
4735 mov->write_prft);
4736 return 0;
4737 }
4738
4739 avio_wb32(pb, 0); // Size place holder
4740 ffio_wfourcc(pb, "prft"); // Type
4741 avio_w8(pb, 1); // Version
4742 avio_wb24(pb, flags); // Flags
4743 avio_wb32(pb, first_track->track_id); // reference track ID
4744 avio_wb64(pb, ntp_ts); // NTP time stamp
4745 avio_wb64(pb, first_track->cluster[0].pts); //media time
4746 return update_size(pb, pos);
4747 }
4748
4749 static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4750 int64_t mdat_size)
4751 {
4752 AVIOContext *avio_buf;
4753 int ret, moof_size;
4754
4755 if ((ret = ffio_open_null_buf(&avio_buf)) < 0)
4756 return ret;
4757 mov_write_moof_tag_internal(avio_buf, mov, tracks, 0);
4758 moof_size = ffio_close_null_buf(avio_buf);
4759
4760 if (mov->flags & FF_MOV_FLAG_DASH &&
4761 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX)))
4762 mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size);
4763
4764 if (mov->write_prft > MOV_PRFT_NONE && mov->write_prft < MOV_PRFT_NB)
4765 mov_write_prft_tag(pb, mov, tracks);
4766
4767 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX ||
4768 !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) ||
4769 mov->ism_lookahead) {
4770 if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0)
4771 return ret;
4772 if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) &&
4773 mov->flags & FF_MOV_FLAG_SKIP_TRAILER) {
4774 mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1);
4775 }
4776 }
4777
4778 return mov_write_moof_tag_internal(pb, mov, tracks, moof_size);
4779 }
4780
4781 static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track)
4782 {
4783 int64_t pos = avio_tell(pb);
4784 int i;
4785
4786 avio_wb32(pb, 0); /* size placeholder */
4787 ffio_wfourcc(pb, "tfra");
4788 avio_w8(pb, 1); /* version */
4789 avio_wb24(pb, 0);
4790
4791 avio_wb32(pb, track->track_id);
4792 avio_wb32(pb, 0); /* length of traf/trun/sample num */
4793 avio_wb32(pb, track->nb_frag_info);
4794 for (i = 0; i < track->nb_frag_info; i++) {
4795 avio_wb64(pb, track->frag_info[i].time);
4796 avio_wb64(pb, track->frag_info[i].offset + track->data_offset);
4797 avio_w8(pb, 1); /* traf number */
4798 avio_w8(pb, 1); /* trun number */
4799 avio_w8(pb, 1); /* sample number */
4800 }
4801
4802 return update_size(pb, pos);
4803 }
4804
4805 static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov)
4806 {
4807 int64_t pos = avio_tell(pb);
4808 int i;
4809
4810 avio_wb32(pb, 0); /* size placeholder */
4811 ffio_wfourcc(pb, "mfra");
4812 /* An empty mfra atom is enough to indicate to the publishing point that
4813 * the stream has ended. */
4814 if (mov->flags & FF_MOV_FLAG_ISML)
4815 return update_size(pb, pos);
4816
4817 for (i = 0; i < mov->nb_streams; i++) {
4818 MOVTrack *track = &mov->tracks[i];
4819 if (track->nb_frag_info)
4820 mov_write_tfra_tag(pb, track);
4821 }
4822
4823 avio_wb32(pb, 16);
4824 ffio_wfourcc(pb, "mfro");
4825 avio_wb32(pb, 0); /* version + flags */
4826 avio_wb32(pb, avio_tell(pb) + 4 - pos);
4827
4828 return update_size(pb, pos);
4829 }
4830
4831 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
4832 {
4833 avio_wb32(pb, 8); // placeholder for extended size field (64 bit)
4834 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
4835
4836 mov->mdat_pos = avio_tell(pb);
4837 avio_wb32(pb, 0); /* size placeholder*/
4838 ffio_wfourcc(pb, "mdat");
4839 return 0;
4840 }
4841
4842 static void mov_write_ftyp_tag_internal(AVIOContext *pb, AVFormatContext *s,
4843 int has_h264, int has_video, int write_minor)
4844 {
4845 MOVMuxContext *mov = s->priv_data;
4846 int minor = 0x200;
4847
4848 if (mov->major_brand && strlen(mov->major_brand) >= 4)
4849 ffio_wfourcc(pb, mov->major_brand);
4850 else if (mov->mode == MODE_3GP) {
4851 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4");
4852 minor = has_h264 ? 0x100 : 0x200;
4853 } else if (mov->mode & MODE_3G2) {
4854 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a");
4855 minor = has_h264 ? 0x20000 : 0x10000;
4856 } else if (mov->mode == MODE_PSP)
4857 ffio_wfourcc(pb, "MSNV");
4858 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_FRAGMENT &&
4859 mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4860 ffio_wfourcc(pb, "iso6"); // Required when using signed CTS offsets in trun boxes
4861 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4862 ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof
4863 else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4864 ffio_wfourcc(pb, "iso4");
4865 else if (mov->mode == MODE_MP4)
4866 ffio_wfourcc(pb, "isom");
4867 else if (mov->mode == MODE_IPOD)
4868 ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
4869 else if (mov->mode == MODE_ISM)
4870 ffio_wfourcc(pb, "isml");
4871 else if (mov->mode == MODE_F4V)
4872 ffio_wfourcc(pb, "f4v ");
4873 else
4874 ffio_wfourcc(pb, "qt ");
4875
4876 if (write_minor)
4877 avio_wb32(pb, minor);
4878 }
4879
4880 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
4881 {
4882 MOVMuxContext *mov = s->priv_data;
4883 int64_t pos = avio_tell(pb);
4884 int has_h264 = 0, has_video = 0;
4885 int i;
4886
4887 for (i = 0; i < s->nb_streams; i++) {
4888 AVStream *st = s->streams[i];
4889 if (is_cover_image(st))
4890 continue;
4891 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
4892 has_video = 1;
4893 if (st->codecpar->codec_id == AV_CODEC_ID_H264)
4894 has_h264 = 1;
4895 }
4896
4897 avio_wb32(pb, 0); /* size */
4898 ffio_wfourcc(pb, "ftyp");
4899
4900 // Write major brand
4901 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 1);
4902 // Write the major brand as the first compatible brand as well
4903 mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 0);
4904
4905 // Write compatible brands, ensuring that we don't write the major brand as a
4906 // compatible brand a second time.
4907 if (mov->mode == MODE_ISM) {
4908 ffio_wfourcc(pb, "piff");
4909 } else if (mov->mode != MODE_MOV) {
4910 // We add tfdt atoms when fragmenting, signal this with the iso6 compatible
4911 // brand, if not already the major brand. This is compatible with users that
4912 // don't understand tfdt.
4913 if (mov->mode == MODE_MP4) {
4914 if (mov->flags & FF_MOV_FLAG_CMAF)
4915 ffio_wfourcc(pb, "cmfc");
4916 if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
4917 ffio_wfourcc(pb, "iso6");
4918 } else {
4919 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
4920 ffio_wfourcc(pb, "iso6");
4921 if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
4922 ffio_wfourcc(pb, "iso5");
4923 else if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4924 ffio_wfourcc(pb, "iso4");
4925 }
4926 // Brands prior to iso5 can't be signaled when using default-base-is-moof
4927 if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) {
4928 // write isom for mp4 only if it it's not the major brand already.
4929 if (mov->mode != MODE_MP4 || mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)
4930 ffio_wfourcc(pb, "isom");
4931 ffio_wfourcc(pb, "iso2");
4932 if (has_h264)
4933 ffio_wfourcc(pb, "avc1");
4934 }
4935 }
4936
4937 if (mov->mode == MODE_MP4)
4938 ffio_wfourcc(pb, "mp41");
4939
4940 if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
4941 ffio_wfourcc(pb, "dash");
4942
4943 return update_size(pb, pos);
4944 }
4945
4946 static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
4947 {
4948 AVStream *video_st = s->streams[0];
4949 AVCodecParameters *video_par = s->streams[0]->codecpar;
4950 AVCodecParameters *audio_par = s->streams[1]->codecpar;
4951 int audio_rate = audio_par->sample_rate;
4952 int64_t frame_rate = video_st->avg_frame_rate.den ?
4953 (video_st->avg_frame_rate.num * 0x10000LL) / video_st->avg_frame_rate.den :
4954 0;
4955 int audio_kbitrate = audio_par->bit_rate / 1000;
4956 int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate);
4957
4958 if (frame_rate < 0 || frame_rate > INT32_MAX) {
4959 av_log(s, AV_LOG_ERROR, "Frame rate %f outside supported range\n", frame_rate / (double)0x10000);
4960 return AVERROR(EINVAL);
4961 }
4962
4963 avio_wb32(pb, 0x94); /* size */
4964 ffio_wfourcc(pb, "uuid");
4965 ffio_wfourcc(pb, "PROF");
4966
4967 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
4968 avio_wb32(pb, 0xbb88695c);
4969 avio_wb32(pb, 0xfac9c740);
4970
4971 avio_wb32(pb, 0x0); /* ? */
4972 avio_wb32(pb, 0x3); /* 3 sections ? */
4973
4974 avio_wb32(pb, 0x14); /* size */
4975 ffio_wfourcc(pb, "FPRF");
4976 avio_wb32(pb, 0x0); /* ? */
4977 avio_wb32(pb, 0x0); /* ? */
4978 avio_wb32(pb, 0x0); /* ? */
4979
4980 avio_wb32(pb, 0x2c); /* size */
4981 ffio_wfourcc(pb, "APRF"); /* audio */
4982 avio_wb32(pb, 0x0);
4983 avio_wb32(pb, 0x2); /* TrackID */
4984 ffio_wfourcc(pb, "mp4a");
4985 avio_wb32(pb, 0x20f);
4986 avio_wb32(pb, 0x0);
4987 avio_wb32(pb, audio_kbitrate);
4988 avio_wb32(pb, audio_kbitrate);
4989 avio_wb32(pb, audio_rate);
4990 avio_wb32(pb, audio_par->channels);
4991
4992 avio_wb32(pb, 0x34); /* size */
4993 ffio_wfourcc(pb, "VPRF"); /* video */
4994 avio_wb32(pb, 0x0);
4995 avio_wb32(pb, 0x1); /* TrackID */
4996 if (video_par->codec_id == AV_CODEC_ID_H264) {
4997 ffio_wfourcc(pb, "avc1");
4998 avio_wb16(pb, 0x014D);
4999 avio_wb16(pb, 0x0015);
5000 } else {
5001 ffio_wfourcc(pb, "mp4v");
5002 avio_wb16(pb, 0x0000);
5003 avio_wb16(pb, 0x0103);
5004 }
5005 avio_wb32(pb, 0x0);
5006 avio_wb32(pb, video_kbitrate);
5007 avio_wb32(pb, video_kbitrate);
5008 avio_wb32(pb, frame_rate);
5009 avio_wb32(pb, frame_rate);
5010 avio_wb16(pb, video_par->width);
5011 avio_wb16(pb, video_par->height);
5012 avio_wb32(pb, 0x010001); /* ? */
5013
5014 return 0;
5015 }
5016
5017 static int mov_write_identification(AVIOContext *pb, AVFormatContext *s)
5018 {
5019 MOVMuxContext *mov = s->priv_data;
5020 int i;
5021
5022 mov_write_ftyp_tag(pb,s);
5023 if (mov->mode == MODE_PSP) {
5024 int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0;
5025 for (i = 0; i < s->nb_streams; i++) {
5026 AVStream *st = s->streams[i];
5027 if (is_cover_image(st))
5028 continue;
5029 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
5030 video_streams_nb++;
5031 else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
5032 audio_streams_nb++;
5033 else
5034 other_streams_nb++;
5035 }
5036
5037 if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) {
5038 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
5039 return AVERROR(EINVAL);
5040 }
5041 return mov_write_uuidprof_tag(pb, s);
5042 }
5043 return 0;
5044 }
5045
5046 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
5047 {
5048 uint32_t c = -1;
5049 int i, closed_gop = 0;
5050
5051 for (i = 0; i < pkt->size - 4; i++) {
5052 c = (c << 8) + pkt->data[i];
5053 if (c == 0x1b8) { // gop
5054 closed_gop = pkt->data[i + 4] >> 6 & 0x01;
5055 } else if (c == 0x100) { // pic
5056 int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6);
5057 if (!temp_ref || closed_gop) // I picture is not reordered
5058 *flags = MOV_SYNC_SAMPLE;
5059 else
5060 *flags = MOV_PARTIAL_SYNC_SAMPLE;
5061 break;
5062 }
5063 }
5064 return 0;
5065 }
5066
5067 static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk)
5068 {
5069 const uint8_t *start, *next, *end = pkt->data + pkt->size;
5070 int seq = 0, entry = 0;
5071 int key = pkt->flags & AV_PKT_FLAG_KEY;
5072 start = find_next_marker(pkt->data, end);
5073 for (next = start; next < end; start = next) {
5074 next = find_next_marker(start + 4, end);
5075 switch (AV_RB32(start)) {
5076 case VC1_CODE_SEQHDR:
5077 seq = 1;
5078 break;
5079 case VC1_CODE_ENTRYPOINT:
5080 entry = 1;
5081 break;
5082 case VC1_CODE_SLICE:
5083 trk->vc1_info.slices = 1;
5084 break;
5085 }
5086 }
5087 if (!trk->entry && trk->vc1_info.first_packet_seen)
5088 trk->vc1_info.first_frag_written = 1;
5089 if (!trk->entry && !trk->vc1_info.first_frag_written) {
5090 /* First packet in first fragment */
5091 trk->vc1_info.first_packet_seq = seq;
5092 trk->vc1_info.first_packet_entry = entry;
5093 trk->vc1_info.first_packet_seen = 1;
5094 } else if ((seq && !trk->vc1_info.packet_seq) ||
5095 (entry && !trk->vc1_info.packet_entry)) {
5096 int i;
5097 for (i = 0; i < trk->entry; i++)
5098 trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE;
5099 trk->has_keyframes = 0;
5100 if (seq)
5101 trk->vc1_info.packet_seq = 1;
5102 if (entry)
5103 trk->vc1_info.packet_entry = 1;
5104 if (!trk->vc1_info.first_frag_written) {
5105 /* First fragment */
5106 if ((!seq || trk->vc1_info.first_packet_seq) &&
5107 (!entry || trk->vc1_info.first_packet_entry)) {
5108 /* First packet had the same headers as this one, readd the
5109 * sync sample flag. */
5110 trk->cluster[0].flags |= MOV_SYNC_SAMPLE;
5111 trk->has_keyframes = 1;
5112 }
5113 }
5114 }
5115 if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry)
5116 key = seq && entry;
5117 else if (trk->vc1_info.packet_seq)
5118 key = seq;
5119 else if (trk->vc1_info.packet_entry)
5120 key = entry;
5121 if (key) {
5122 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5123 trk->has_keyframes++;
5124 }
5125 }
5126
5127 static void mov_parse_truehd_frame(AVPacket *pkt, MOVTrack *trk)
5128 {
5129 int length;
5130
5131 if (pkt->size < 8)
5132 return;
5133
5134 length = (AV_RB16(pkt->data) & 0xFFF) * 2;
5135 if (length < 8 || length > pkt->size)
5136 return;
5137
5138 if (AV_RB32(pkt->data + 4) == 0xF8726FBA) {
5139 trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE;
5140 trk->has_keyframes++;
5141 }
5142
5143 return;
5144 }
5145
5146 static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track)
5147 {
5148 MOVMuxContext *mov = s->priv_data;
5149 int ret, buf_size;
5150 uint8_t *buf;
5151 int i, offset;
5152
5153 if (!track->mdat_buf)
5154 return 0;
5155 if (!mov->mdat_buf) {
5156 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5157 return ret;
5158 }
5159 buf_size = avio_get_dyn_buf(track->mdat_buf, &buf);
5160
5161 offset = avio_tell(mov->mdat_buf);
5162 avio_write(mov->mdat_buf, buf, buf_size);
5163 ffio_free_dyn_buf(&track->mdat_buf);
5164
5165 for (i = track->entries_flushed; i < track->entry; i++)
5166 track->cluster[i].pos += offset;
5167 track->entries_flushed = track->entry;
5168 return 0;
5169 }
5170
5171 static int mov_flush_fragment(AVFormatContext *s, int force)
5172 {
5173 MOVMuxContext *mov = s->priv_data;
5174 int i, first_track = -1;
5175 int64_t mdat_size = 0;
5176 int ret;
5177 int has_video = 0, starts_with_key = 0, first_video_track = 1;
5178
5179 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
5180 return 0;
5181
5182 // Try to fill in the duration of the last packet in each stream
5183 // from queued packets in the interleave queues. If the flushing
5184 // of fragments was triggered automatically by an AVPacket, we
5185 // already have reliable info for the end of that track, but other
5186 // tracks may need to be filled in.
5187 for (i = 0; i < s->nb_streams; i++) {
5188 MOVTrack *track = &mov->tracks[i];
5189 if (!track->end_reliable) {
5190 AVPacket pkt;
5191 if (!ff_interleaved_peek(s, i, &pkt, 1)) {
5192 if (track->dts_shift != AV_NOPTS_VALUE)
5193 pkt.dts += track->dts_shift;
5194 track->track_duration = pkt.dts - track->start_dts;
5195 if (pkt.pts != AV_NOPTS_VALUE)
5196 track->end_pts = pkt.pts;
5197 else
5198 track->end_pts = pkt.dts;
5199 }
5200 }
5201 }
5202
5203 for (i = 0; i < mov->nb_streams; i++) {
5204 MOVTrack *track = &mov->tracks[i];
5205 if (track->entry <= 1)
5206 continue;
5207 // Sample durations are calculated as the diff of dts values,
5208 // but for the last sample in a fragment, we don't know the dts
5209 // of the first sample in the next fragment, so we have to rely
5210 // on what was set as duration in the AVPacket. Not all callers
5211 // set this though, so we might want to replace it with an
5212 // estimate if it currently is zero.
5213 if (get_cluster_duration(track, track->entry - 1) != 0)
5214 continue;
5215 // Use the duration (i.e. dts diff) of the second last sample for
5216 // the last one. This is a wild guess (and fatal if it turns out
5217 // to be too long), but probably the best we can do - having a zero
5218 // duration is bad as well.
5219 track->track_duration += get_cluster_duration(track, track->entry - 2);
5220 track->end_pts += get_cluster_duration(track, track->entry - 2);
5221 if (!mov->missing_duration_warned) {
5222 av_log(s, AV_LOG_WARNING,
5223 "Estimating the duration of the last packet in a "
5224 "fragment, consider setting the duration field in "
5225 "AVPacket instead.\n");
5226 mov->missing_duration_warned = 1;
5227 }
5228 }
5229
5230 if (!mov->moov_written) {
5231 int64_t pos = avio_tell(s->pb);
5232 uint8_t *buf;
5233 int buf_size, moov_size;
5234
5235 for (i = 0; i < mov->nb_streams; i++)
5236 if (!mov->tracks[i].entry && !is_cover_image(mov->tracks[i].st))
5237 break;
5238 /* Don't write the initial moov unless all tracks have data */
5239 if (i < mov->nb_streams && !force)
5240 return 0;
5241
5242 moov_size = get_moov_size(s);
5243 for (i = 0; i < mov->nb_streams; i++)
5244 mov->tracks[i].data_offset = pos + moov_size + 8;
5245
5246 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER);
5247 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5248 mov_write_identification(s->pb, s);
5249 if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0)
5250 return ret;
5251
5252 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) {
5253 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5254 mov->reserved_header_pos = avio_tell(s->pb);
5255 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5256 mov->moov_written = 1;
5257 return 0;
5258 }
5259
5260 buf_size = avio_get_dyn_buf(mov->mdat_buf, &buf);
5261 avio_wb32(s->pb, buf_size + 8);
5262 ffio_wfourcc(s->pb, "mdat");
5263 avio_write(s->pb, buf, buf_size);
5264 ffio_free_dyn_buf(&mov->mdat_buf);
5265
5266 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
5267 mov->reserved_header_pos = avio_tell(s->pb);
5268
5269 mov->moov_written = 1;
5270 mov->mdat_size = 0;
5271 for (i = 0; i < mov->nb_streams; i++) {
5272 if (mov->tracks[i].entry)
5273 mov->tracks[i].frag_start += mov->tracks[i].start_dts +
5274 mov->tracks[i].track_duration -
5275 mov->tracks[i].cluster[0].dts;
5276 mov->tracks[i].entry = 0;
5277 mov->tracks[i].end_reliable = 0;
5278 }
5279 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5280 return 0;
5281 }
5282
5283 if (mov->frag_interleave) {
5284 for (i = 0; i < mov->nb_streams; i++) {
5285 MOVTrack *track = &mov->tracks[i];
5286 int ret;
5287 if ((ret = mov_flush_fragment_interleaving(s, track)) < 0)
5288 return ret;
5289 }
5290
5291 if (!mov->mdat_buf)
5292 return 0;
5293 mdat_size = avio_tell(mov->mdat_buf);
5294 }
5295
5296 for (i = 0; i < mov->nb_streams; i++) {
5297 MOVTrack *track = &mov->tracks[i];
5298 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave)
5299 track->data_offset = 0;
5300 else
5301 track->data_offset = mdat_size;
5302 if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
5303 has_video = 1;
5304 if (first_video_track) {
5305 if (track->entry)
5306 starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE;
5307 first_video_track = 0;
5308 }
5309 }
5310 if (!track->entry)
5311 continue;
5312 if (track->mdat_buf)
5313 mdat_size += avio_tell(track->mdat_buf);
5314 if (first_track < 0)
5315 first_track = i;
5316 }
5317
5318 if (!mdat_size)
5319 return 0;
5320
5321 avio_write_marker(s->pb,
5322 av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale),
5323 (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);
5324
5325 for (i = 0; i < mov->nb_streams; i++) {
5326 MOVTrack *track = &mov->tracks[i];
5327 int buf_size, write_moof = 1, moof_tracks = -1;
5328 uint8_t *buf;
5329 int64_t duration = 0;
5330
5331 if (track->entry)
5332 duration = track->start_dts + track->track_duration -
5333 track->cluster[0].dts;
5334 if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
5335 if (!track->mdat_buf)
5336 continue;
5337 mdat_size = avio_tell(track->mdat_buf);
5338 moof_tracks = i;
5339 } else {
5340 write_moof = i == first_track;
5341 }
5342
5343 if (write_moof) {
5344 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5345
5346 mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size);
5347 mov->fragments++;
5348
5349 avio_wb32(s->pb, mdat_size + 8);
5350 ffio_wfourcc(s->pb, "mdat");
5351 }
5352
5353 if (track->entry)
5354 track->frag_start += duration;
5355 track->entry = 0;
5356 track->entries_flushed = 0;
5357 track->end_reliable = 0;
5358 if (!mov->frag_interleave) {
5359 if (!track->mdat_buf)
5360 continue;
5361 buf_size = avio_close_dyn_buf(track->mdat_buf, &buf);
5362 track->mdat_buf = NULL;
5363 } else {
5364 if (!mov->mdat_buf)
5365 continue;
5366 buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf);
5367 mov->mdat_buf = NULL;
5368 }
5369
5370 avio_write(s->pb, buf, buf_size);
5371 av_free(buf);
5372 }
5373
5374 mov->mdat_size = 0;
5375
5376 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
5377 return 0;
5378 }
5379
5380 static int mov_auto_flush_fragment(AVFormatContext *s, int force)
5381 {
5382 MOVMuxContext *mov = s->priv_data;
5383 int had_moov = mov->moov_written;
5384 int ret = mov_flush_fragment(s, force);
5385 if (ret < 0)
5386 return ret;
5387 // If using delay_moov, the first flush only wrote the moov,
5388 // not the actual moof+mdat pair, thus flush once again.
5389 if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV)
5390 ret = mov_flush_fragment(s, force);
5391 return ret;
5392 }
5393
5394 static int check_pkt(AVFormatContext *s, AVPacket *pkt)
5395 {
5396 MOVMuxContext *mov = s->priv_data;
5397 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5398 int64_t ref;
5399 uint64_t duration;
5400
5401 if (trk->entry) {
5402 ref = trk->cluster[trk->entry - 1].dts;
5403 } else if ( trk->start_dts != AV_NOPTS_VALUE
5404 && !trk->frag_discont) {
5405 ref = trk->start_dts + trk->track_duration;
5406 } else
5407 ref = pkt->dts; // Skip tests for the first packet
5408
5409 if (trk->dts_shift != AV_NOPTS_VALUE) {
5410 /* With negative CTS offsets we have set an offset to the DTS,
5411 * reverse this for the check. */
5412 ref -= trk->dts_shift;
5413 }
5414
5415 duration = pkt->dts - ref;
5416 if (pkt->dts < ref || duration >= INT_MAX) {
5417 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
5418 duration, pkt->dts
5419 );
5420
5421 pkt->dts = ref + 1;
5422 pkt->pts = AV_NOPTS_VALUE;
5423 }
5424
5425 if (pkt->duration < 0 || pkt->duration > INT_MAX) {
5426 av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration);
5427 return AVERROR(EINVAL);
5428 }
5429 return 0;
5430 }
5431
5432 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5433 {
5434 MOVMuxContext *mov = s->priv_data;
5435 AVIOContext *pb = s->pb;
5436 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5437 AVCodecParameters *par = trk->par;
5438 AVProducerReferenceTime *prft;
5439 unsigned int samples_in_chunk = 0;
5440 int size = pkt->size, ret = 0, offset = 0;
5441 int prft_size;
5442 uint8_t *reformatted_data = NULL;
5443
5444 ret = check_pkt(s, pkt);
5445 if (ret < 0)
5446 return ret;
5447
5448 if (pkt->pts != AV_NOPTS_VALUE &&
5449 (uint64_t)pkt->dts - pkt->pts != (int32_t)((uint64_t)pkt->dts - pkt->pts)) {
5450 av_log(s, AV_LOG_WARNING, "pts/dts pair unsupported\n");
5451 return AVERROR_PATCHWELCOME;
5452 }
5453
5454 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
5455 int ret;
5456 if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
5457 if (mov->frag_interleave && mov->fragments > 0) {
5458 if (trk->entry - trk->entries_flushed >= mov->frag_interleave) {
5459 if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0)
5460 return ret;
5461 }
5462 }
5463
5464 if (!trk->mdat_buf) {
5465 if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0)
5466 return ret;
5467 }
5468 pb = trk->mdat_buf;
5469 } else {
5470 if (!mov->mdat_buf) {
5471 if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0)
5472 return ret;
5473 }
5474 pb = mov->mdat_buf;
5475 }
5476 }
5477
5478 if (par->codec_id == AV_CODEC_ID_AMR_NB) {
5479 /* We must find out how many AMR blocks there are in one packet */
5480 static const uint16_t packed_size[16] =
5481 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1};
5482 int len = 0;
5483
5484 while (len < size && samples_in_chunk < 100) {
5485 len += packed_size[(pkt->data[len] >> 3) & 0x0F];
5486 samples_in_chunk++;
5487 }
5488 if (samples_in_chunk > 1) {
5489 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
5490 return -1;
5491 }
5492 } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS ||
5493 par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
5494 samples_in_chunk = trk->par->frame_size;
5495 } else if (trk->sample_size)
5496 samples_in_chunk = size / trk->sample_size;
5497 else
5498 samples_in_chunk = 1;
5499
5500 if (samples_in_chunk < 1) {
5501 av_log(s, AV_LOG_ERROR, "fatal error, input packet contains no samples\n");
5502 return AVERROR_PATCHWELCOME;
5503 }
5504
5505 /* copy extradata if it exists */
5506 if (trk->vos_len == 0 && par->extradata_size > 0 &&
5507 !TAG_IS_AVCI(trk->tag) &&
5508 (par->codec_id != AV_CODEC_ID_DNXHD)) {
5509 trk->vos_len = par->extradata_size;
5510 trk->vos_data = av_malloc(trk->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
5511 if (!trk->vos_data) {
5512 ret = AVERROR(ENOMEM);
5513 goto err;
5514 }
5515 memcpy(trk->vos_data, par->extradata, trk->vos_len);
5516 memset(trk->vos_data + trk->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5517 }
5518
5519 if ((par->codec_id == AV_CODEC_ID_DNXHD ||
5520 par->codec_id == AV_CODEC_ID_H264 ||
5521 par->codec_id == AV_CODEC_ID_HEVC ||
5522 par->codec_id == AV_CODEC_ID_TRUEHD ||
5523 par->codec_id == AV_CODEC_ID_AC3) && !trk->vos_len &&
5524 !TAG_IS_AVCI(trk->tag)) {
5525 /* copy frame to create needed atoms */
5526 trk->vos_len = size;
5527 trk->vos_data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
5528 if (!trk->vos_data) {
5529 ret = AVERROR(ENOMEM);
5530 goto err;
5531 }
5532 memcpy(trk->vos_data, pkt->data, size);
5533 memset(trk->vos_data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
5534 }
5535
5536 if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 &&
5537 (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
5538 if (!s->streams[pkt->stream_index]->nb_frames) {
5539 av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: "
5540 "use the audio bitstream filter 'aac_adtstoasc' to fix it "
5541 "('-bsf:a aac_adtstoasc' option with ffmpeg)\n");
5542 return -1;
5543 }
5544 av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
5545 }
5546 if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
5547 /* from x264 or from bytestream H.264 */
5548 /* NAL reformatting needed */
5549 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5550 ret = ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
5551 &size);
5552 if (ret < 0)
5553 return ret;
5554 avio_write(pb, reformatted_data, size);
5555 } else {
5556 if (trk->cenc.aes_ctr) {
5557 size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size);
5558 if (size < 0) {
5559 ret = size;
5560 goto err;
5561 }
5562 } else {
5563 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
5564 }
5565 }
5566 } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 &&
5567 (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
5568 /* extradata is Annex B, assume the bitstream is too and convert it */
5569 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5570 ret = ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data,
5571 &size, 0, NULL);
5572 if (ret < 0)
5573 return ret;
5574 avio_write(pb, reformatted_data, size);
5575 } else {
5576 size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
5577 }
5578 } else if (par->codec_id == AV_CODEC_ID_AV1) {
5579 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
5580 ret = ff_av1_filter_obus_buf(pkt->data, &reformatted_data,
5581 &size, &offset);
5582 if (ret < 0)
5583 return ret;
5584 avio_write(pb, reformatted_data, size);
5585 } else {
5586 size = ff_av1_filter_obus(pb, pkt->data, pkt->size);
5587 }
5588 #if CONFIG_AC3_PARSER
5589 } else if (par->codec_id == AV_CODEC_ID_EAC3) {
5590 size = handle_eac3(mov, pkt, trk);
5591 if (size < 0)
5592 return size;
5593 else if (!size)
5594 goto end;
5595 avio_write(pb, pkt->data, size);
5596 #endif
5597 } else {
5598 if (trk->cenc.aes_ctr) {
5599 if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) {
5600 int nal_size_length = (par->extradata[4] & 0x3) + 1;
5601 ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
5602 } else {
5603 ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
5604 }
5605
5606 if (ret) {
5607 goto err;
5608 }
5609 } else {
5610 avio_write(pb, pkt->data, size);
5611 }
5612 }
5613
5614 if (trk->entry >= trk->cluster_capacity) {
5615 unsigned new_capacity = trk->entry + MOV_INDEX_CLUSTER_SIZE;
5616 void *cluster = av_realloc_array(trk->cluster, new_capacity, sizeof(*trk->cluster));
5617 if (!cluster) {
5618 ret = AVERROR(ENOMEM);
5619 goto err;
5620 }
5621 trk->cluster = cluster;
5622 trk->cluster_capacity = new_capacity;
5623 }
5624
5625 trk->cluster[trk->entry].pos = avio_tell(pb) - size;
5626 trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk;
5627 trk->cluster[trk->entry].chunkNum = 0;
5628 trk->cluster[trk->entry].size = size;
5629 trk->cluster[trk->entry].entries = samples_in_chunk;
5630 trk->cluster[trk->entry].dts = pkt->dts;
5631 trk->cluster[trk->entry].pts = pkt->pts;
5632 if (!trk->entry && trk->start_dts != AV_NOPTS_VALUE) {
5633 if (!trk->frag_discont) {
5634 /* First packet of a new fragment. We already wrote the duration
5635 * of the last packet of the previous fragment based on track_duration,
5636 * which might not exactly match our dts. Therefore adjust the dts
5637 * of this packet to be what the previous packets duration implies. */
5638 trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration;
5639 /* We also may have written the pts and the corresponding duration
5640 * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with
5641 * the next fragment. This means the cts of the first sample must
5642 * be the same in all fragments, unless end_pts was updated by
5643 * the packet causing the fragment to be written. */
5644 if ((mov->flags & FF_MOV_FLAG_DASH &&
5645 !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX))) ||
5646 mov->mode == MODE_ISM)
5647 pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts;
5648 } else {
5649 /* New fragment, but discontinuous from previous fragments.
5650 * Pretend the duration sum of the earlier fragments is
5651 * pkt->dts - trk->start_dts. */
5652 trk->frag_start = pkt->dts - trk->start_dts;
5653 trk->end_pts = AV_NOPTS_VALUE;
5654 trk->frag_discont = 0;
5655 }
5656 }
5657
5658 if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist &&
5659 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
5660 /* Not using edit lists and shifting the first track to start from zero.
5661 * If the other streams start from a later timestamp, we won't be able
5662 * to signal the difference in starting time without an edit list.
5663 * Thus move the timestamp for this first sample to 0, increasing
5664 * its duration instead. */
5665 trk->cluster[trk->entry].dts = trk->start_dts = 0;
5666 }
5667 if (trk->start_dts == AV_NOPTS_VALUE) {
5668 trk->start_dts = pkt->dts;
5669 if (trk->frag_discont) {
5670 if (mov->use_editlist) {
5671 /* Pretend the whole stream started at pts=0, with earlier fragments
5672 * already written. If the stream started at pts=0, the duration sum
5673 * of earlier fragments would have been pkt->pts. */
5674 trk->frag_start = pkt->pts;
5675 trk->start_dts = pkt->dts - pkt->pts;
5676 } else {
5677 /* Pretend the whole stream started at dts=0, with earlier fragments
5678 * already written, with a duration summing up to pkt->dts. */
5679 trk->frag_start = pkt->dts;
5680 trk->start_dts = 0;
5681 }
5682 trk->frag_discont = 0;
5683 } else if (pkt->dts && mov->moov_written)
5684 av_log(s, AV_LOG_WARNING,
5685 "Track %d starts with a nonzero dts %"PRId64", while the moov "
5686 "already has been written. Set the delay_moov flag to handle "
5687 "this case.\n",
5688 pkt->stream_index, pkt->dts);
5689 }
5690 trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
5691 trk->last_sample_is_subtitle_end = 0;
5692
5693 if (pkt->pts == AV_NOPTS_VALUE) {
5694 av_log(s, AV_LOG_WARNING, "pts has no value\n");
5695 pkt->pts = pkt->dts;
5696 }
5697 if (pkt->dts != pkt->pts)
5698 trk->flags |= MOV_TRACK_CTTS;
5699 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
5700 trk->cluster[trk->entry].flags = 0;
5701 if (trk->start_cts == AV_NOPTS_VALUE)
5702 trk->start_cts = pkt->pts - pkt->dts;
5703 if (trk->end_pts == AV_NOPTS_VALUE)
5704 trk->end_pts = trk->cluster[trk->entry].dts +
5705 trk->cluster[trk->entry].cts + pkt->duration;
5706 else
5707 trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts +
5708 trk->cluster[trk->entry].cts +
5709 pkt->duration);
5710
5711 if (par->codec_id == AV_CODEC_ID_VC1) {
5712 mov_parse_vc1_frame(pkt, trk);
5713 } else if (par->codec_id == AV_CODEC_ID_TRUEHD) {
5714 mov_parse_truehd_frame(pkt, trk);
5715 } else if (pkt->flags & AV_PKT_FLAG_KEY) {
5716 if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
5717 trk->entry > 0) { // force sync sample for the first key frame
5718 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
5719 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
5720 trk->flags |= MOV_TRACK_STPS;
5721 } else {
5722 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
5723 }
5724 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
5725 trk->has_keyframes++;
5726 }
5727 if (pkt->flags & AV_PKT_FLAG_DISPOSABLE) {
5728 trk->cluster[trk->entry].flags |= MOV_DISPOSABLE_SAMPLE;
5729 trk->has_disposable++;
5730 }
5731
5732 prft = (AVProducerReferenceTime *)av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &prft_size);
5733 if (prft && prft_size == sizeof(AVProducerReferenceTime))
5734 memcpy(&trk->cluster[trk->entry].prft, prft, prft_size);
5735 else
5736 memset(&trk->cluster[trk->entry].prft, 0, sizeof(AVProducerReferenceTime));
5737
5738 trk->entry++;
5739 trk->sample_count += samples_in_chunk;
5740 mov->mdat_size += size;
5741
5742 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
5743 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry,
5744 reformatted_data ? reformatted_data + offset
5745 : NULL, size);
5746
5747 end:
5748 err:
5749
5750 if (pkt->data != reformatted_data)
5751 av_free(reformatted_data);
5752 return ret;
5753 }
5754
5755 static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt)
5756 {
5757 MOVMuxContext *mov = s->priv_data;
5758 MOVTrack *trk = &mov->tracks[pkt->stream_index];
5759 AVCodecParameters *par = trk->par;
5760 int64_t frag_duration = 0;
5761 int size = pkt->size;
5762
5763 int ret = check_pkt(s, pkt);
5764 if (ret < 0)
5765 return ret;
5766
5767 if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) {
5768 int i;
5769 for (i = 0; i < s->nb_streams; i++)
5770 mov->tracks[i].frag_discont = 1;
5771 mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT;
5772 }
5773
5774 if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) {
5775 if (trk->dts_shift == AV_NOPTS_VALUE)
5776 trk->dts_shift = pkt->pts - pkt->dts;
5777 pkt->dts += trk->dts_shift;
5778 }
5779
5780 if (trk->par->codec_id == AV_CODEC_ID_MP4ALS ||
5781 trk->par->codec_id == AV_CODEC_ID_AAC ||
5782 trk->par->codec_id == AV_CODEC_ID_AV1 ||
5783 trk->par->codec_id == AV_CODEC_ID_FLAC) {
5784 int side_size = 0;
5785 uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
5786 if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) {
5787 void *newextra = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE);
5788 if (!newextra)
5789 return AVERROR(ENOMEM);
5790 av_free(par->extradata);
5791 par->extradata = newextra;
5792 memcpy(par->extradata, side, side_size);
5793 par->extradata_size = side_size;
5794 if (!pkt->size) // Flush packet
5795 mov->need_rewrite_extradata = 1;
5796 }
5797 }
5798
5799 if (!pkt->size) {
5800 if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) {
5801 trk->start_dts = pkt->dts;
5802 if (pkt->pts != AV_NOPTS_VALUE)
5803 trk->start_cts = pkt->pts - pkt->dts;
5804 else
5805 trk->start_cts = 0;
5806 }
5807
5808 return 0; /* Discard 0 sized packets */
5809 }
5810
5811 if (trk->entry && pkt->stream_index < s->nb_streams)
5812 frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts,
5813 s->streams[pkt->stream_index]->time_base,
5814 AV_TIME_BASE_Q);
5815 if ((mov->max_fragment_duration &&
5816 frag_duration >= mov->max_fragment_duration) ||
5817 (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) ||
5818 (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME &&
5819 par->codec_type == AVMEDIA_TYPE_VIDEO &&
5820 trk->entry && pkt->flags & AV_PKT_FLAG_KEY) ||
5821 (mov->flags & FF_MOV_FLAG_FRAG_EVERY_FRAME)) {
5822 if (frag_duration >= mov->min_fragment_duration) {
5823 // Set the duration of this track to line up with the next
5824 // sample in this track. This avoids relying on AVPacket
5825 // duration, but only helps for this particular track, not
5826 // for the other ones that are flushed at the same time.
5827 trk->track_duration = pkt->dts - trk->start_dts;
5828 if (pkt->pts != AV_NOPTS_VALUE)
5829 trk->end_pts = pkt->pts;
5830 else
5831 trk->end_pts = pkt->dts;
5832 trk->end_reliable = 1;
5833 mov_auto_flush_fragment(s, 0);
5834 }
5835 }
5836
5837 return ff_mov_write_packet(s, pkt);
5838 }
5839
5840 static int mov_write_subtitle_end_packet(AVFormatContext *s,
5841 int stream_index,
5842 int64_t dts) {
5843 AVPacket end;
5844 uint8_t data[2] = {0};
5845 int ret;
5846
5847 av_init_packet(&end);
5848 end.size = sizeof(data);
5849 end.data = data;
5850 end.pts = dts;
5851 end.dts = dts;
5852 end.duration = 0;
5853 end.stream_index = stream_index;
5854
5855 ret = mov_write_single_packet(s, &end);
5856 av_packet_unref(&end);
5857
5858 return ret;
5859 }
5860
5861 static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
5862 {
5863 MOVMuxContext *mov = s->priv_data;
5864 MOVTrack *trk;
5865
5866 if (!pkt) {
5867 mov_flush_fragment(s, 1);
5868 return 1;
5869 }
5870
5871 trk = &mov->tracks[pkt->stream_index];
5872
5873 if (is_cover_image(trk->st)) {
5874 int ret;
5875
5876 if (trk->st->nb_frames >= 1) {
5877 if (trk->st->nb_frames == 1)
5878 av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d,"
5879 " ignoring.\n", pkt->stream_index);
5880 return 0;
5881 }
5882
5883 if ((ret = av_packet_ref(&trk->cover_image, pkt)) < 0)
5884 return ret;
5885
5886 return 0;
5887 } else {
5888 int i;
5889
5890 if (!pkt->size)
5891 return mov_write_single_packet(s, pkt); /* Passthrough. */
5892
5893 /*
5894 * Subtitles require special handling.
5895 *
5896 * 1) For full complaince, every track must have a sample at
5897 * dts == 0, which is rarely true for subtitles. So, as soon
5898 * as we see any packet with dts > 0, write an empty subtitle
5899 * at dts == 0 for any subtitle track with no samples in it.
5900 *
5901 * 2) For each subtitle track, check if the current packet's
5902 * dts is past the duration of the last subtitle sample. If
5903 * so, we now need to write an end sample for that subtitle.
5904 *
5905 * This must be done conditionally to allow for subtitles that
5906 * immediately replace each other, in which case an end sample
5907 * is not needed, and is, in fact, actively harmful.
5908 *
5909 * 3) See mov_write_trailer for how the final end sample is
5910 * handled.
5911 */
5912 for (i = 0; i < mov->nb_streams; i++) {
5913 MOVTrack *trk = &mov->tracks[i];
5914 int ret;
5915
5916 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
5917 trk->track_duration < pkt->dts &&
5918 (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) {
5919 ret = mov_write_subtitle_end_packet(s, i, trk->track_duration);
5920 if (ret < 0) return ret;
5921 trk->last_sample_is_subtitle_end = 1;
5922 }
5923 }
5924
5925 if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) {
5926 AVPacket *opkt = pkt;
5927 int reshuffle_ret, ret;
5928 if (trk->is_unaligned_qt_rgb) {
5929 int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16;
5930 int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2;
5931 reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride);
5932 if (reshuffle_ret < 0)
5933 return reshuffle_ret;
5934 } else
5935 reshuffle_ret = 0;
5936 if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) {
5937 ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette);
5938 if (ret < 0)
5939 goto fail;
5940 if (ret)
5941 trk->pal_done++;
5942 } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
5943 (trk->par->format == AV_PIX_FMT_GRAY8 ||
5944 trk->par->format == AV_PIX_FMT_MONOBLACK)) {
5945 for (i = 0; i < pkt->size; i++)
5946 pkt->data[i] = ~pkt->data[i];
5947 }
5948 if (reshuffle_ret) {
5949 ret = mov_write_single_packet(s, pkt);
5950 fail:
5951 if (reshuffle_ret)
5952 av_packet_free(&pkt);
5953 return ret;
5954 }
5955 }
5956
5957 return mov_write_single_packet(s, pkt);
5958 }
5959 }
5960
5961 // QuickTime chapters involve an additional text track with the chapter names
5962 // as samples, and a tref pointing from the other tracks to the chapter one.
5963 static int mov_create_chapter_track(AVFormatContext *s, int tracknum)
5964 {
5965 AVIOContext *pb;
5966
5967 MOVMuxContext *mov = s->priv_data;
5968 MOVTrack *track = &mov->tracks[tracknum];
5969 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
5970 int i, len;
5971
5972 track->mode = mov->mode;
5973 track->tag = MKTAG('t','e','x','t');
5974 track->timescale = MOV_TIMESCALE;
5975 track->par = avcodec_parameters_alloc();
5976 if (!track->par)
5977 return AVERROR(ENOMEM);
5978 track->par->codec_type = AVMEDIA_TYPE_SUBTITLE;
5979 #if 0
5980 // These properties are required to make QT recognize the chapter track
5981 uint8_t chapter_properties[43] = { 0, 0, 0, 0, 0, 0, 0, 1, };
5982 if (ff_alloc_extradata(track->par, sizeof(chapter_properties)))
5983 return AVERROR(ENOMEM);
5984 memcpy(track->par->extradata, chapter_properties, sizeof(chapter_properties));
5985 #else
5986 if (avio_open_dyn_buf(&pb) >= 0) {
5987 int size;
5988 uint8_t *buf;
5989
5990 /* Stub header (usually for Quicktime chapter track) */
5991 // TextSampleEntry
5992 avio_wb32(pb, 0x01); // displayFlags
5993 avio_w8(pb, 0x00); // horizontal justification
5994 avio_w8(pb, 0x00); // vertical justification
5995 avio_w8(pb, 0x00); // bgColourRed
5996 avio_w8(pb, 0x00); // bgColourGreen
5997 avio_w8(pb, 0x00); // bgColourBlue
5998 avio_w8(pb, 0x00); // bgColourAlpha
5999 // BoxRecord
6000 avio_wb16(pb, 0x00); // defTextBoxTop
6001 avio_wb16(pb, 0x00); // defTextBoxLeft
6002 avio_wb16(pb, 0x00); // defTextBoxBottom
6003 avio_wb16(pb, 0x00); // defTextBoxRight
6004 // StyleRecord
6005 avio_wb16(pb, 0x00); // startChar
6006 avio_wb16(pb, 0x00); // endChar
6007 avio_wb16(pb, 0x01); // fontID
6008 avio_w8(pb, 0x00); // fontStyleFlags
6009 avio_w8(pb, 0x00); // fontSize
6010 avio_w8(pb, 0x00); // fgColourRed
6011 avio_w8(pb, 0x00); // fgColourGreen
6012 avio_w8(pb, 0x00); // fgColourBlue
6013 avio_w8(pb, 0x00); // fgColourAlpha
6014 // FontTableBox
6015 avio_wb32(pb, 0x0D); // box size
6016 ffio_wfourcc(pb, "ftab"); // box atom name
6017 avio_wb16(pb, 0x01); // entry count
6018 // FontRecord
6019 avio_wb16(pb, 0x01); // font ID
6020 avio_w8(pb, 0x00); // font name length
6021
6022 if ((size = avio_close_dyn_buf(pb, &buf)) > 0) {
6023 track->par->extradata = buf;
6024 track->par->extradata_size = size;
6025 } else {
6026 av_freep(&buf);
6027 }
6028 }
6029 #endif
6030
6031 for (i = 0; i < s->nb_chapters; i++) {
6032 AVChapter *c = s->chapters[i];
6033 AVDictionaryEntry *t;
6034
6035 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
6036 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
6037 pkt.duration = end - pkt.dts;
6038
6039 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
6040 static const char encd[12] = {
6041 0x00, 0x00, 0x00, 0x0C,
6042 'e', 'n', 'c', 'd',
6043 0x00, 0x00, 0x01, 0x00 };
6044 len = strlen(t->value);
6045 pkt.size = len + 2 + 12;
6046 pkt.data = av_malloc(pkt.size);
6047 if (!pkt.data)
6048 return AVERROR(ENOMEM);
6049 AV_WB16(pkt.data, len);
6050 memcpy(pkt.data + 2, t->value, len);
6051 memcpy(pkt.data + len + 2, encd, sizeof(encd));
6052 ff_mov_write_packet(s, &pkt);
6053 av_freep(&pkt.data);
6054 }
6055 }
6056
6057 return 0;
6058 }
6059
6060
6061 static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr)
6062 {
6063 int ret;
6064
6065 /* compute the frame number */
6066 ret = av_timecode_init_from_string(tc, find_fps(s, s->streams[src_index]), tcstr, s);
6067 return ret;
6068 }
6069
6070 static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc)
6071 {
6072 int ret;
6073 MOVMuxContext *mov = s->priv_data;
6074 MOVTrack *track = &mov->tracks[index];
6075 AVStream *src_st = s->streams[src_index];
6076 AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
6077 AVRational rate = find_fps(s, src_st);
6078
6079 /* tmcd track based on video stream */
6080 track->mode = mov->mode;
6081 track->tag = MKTAG('t','m','c','d');
6082 track->src_track = src_index;
6083 track->timescale = mov->tracks[src_index].timescale;
6084 if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME)
6085 track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME;
6086
6087 /* set st to src_st for metadata access*/
6088 track->st = src_st;
6089
6090 /* encode context: tmcd data stream */
6091 track->par = avcodec_parameters_alloc();
6092 if (!track->par)
6093 return AVERROR(ENOMEM);
6094 track->par->codec_type = AVMEDIA_TYPE_DATA;
6095 track->par->codec_tag = track->tag;
6096 track->st->avg_frame_rate = av_inv_q(rate);
6097
6098 /* the tmcd track just contains one packet with the frame number */
6099 pkt.data = av_malloc(pkt.size);
6100 if (!pkt.data)
6101 return AVERROR(ENOMEM);
6102 AV_WB32(pkt.data, tc.start);
6103 ret = ff_mov_write_packet(s, &pkt);
6104 av_free(pkt.data);
6105 return ret;
6106 }
6107
6108 /*
6109 * st->disposition controls the "enabled" flag in the tkhd tag.
6110 * QuickTime will not play a track if it is not enabled. So make sure
6111 * that one track of each type (audio, video, subtitle) is enabled.
6112 *
6113 * Subtitles are special. For audio and video, setting "enabled" also
6114 * makes the track "default" (i.e. it is rendered when played). For
6115 * subtitles, an "enabled" subtitle is not rendered by default, but
6116 * if no subtitle is enabled, the subtitle menu in QuickTime will be
6117 * empty!
6118 */
6119 static void enable_tracks(AVFormatContext *s)
6120 {
6121 MOVMuxContext *mov = s->priv_data;
6122 int i;
6123 int enabled[AVMEDIA_TYPE_NB];
6124 int first[AVMEDIA_TYPE_NB];
6125
6126 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6127 enabled[i] = 0;
6128 first[i] = -1;
6129 }
6130
6131 for (i = 0; i < s->nb_streams; i++) {
6132 AVStream *st = s->streams[i];
6133
6134 if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
6135 st->codecpar->codec_type >= AVMEDIA_TYPE_NB ||
6136 is_cover_image(st))
6137 continue;
6138
6139 if (first[st->codecpar->codec_type] < 0)
6140 first[st->codecpar->codec_type] = i;
6141 if (st->disposition & AV_DISPOSITION_DEFAULT) {
6142 mov->tracks[i].flags |= MOV_TRACK_ENABLED;
6143 enabled[st->codecpar->codec_type]++;
6144 }
6145 }
6146
6147 for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
6148 switch (i) {
6149 case AVMEDIA_TYPE_VIDEO:
6150 case AVMEDIA_TYPE_AUDIO:
6151 case AVMEDIA_TYPE_SUBTITLE:
6152 if (enabled[i] > 1)
6153 mov->per_stream_grouping = 1;
6154 if (!enabled[i] && first[i] >= 0)
6155 mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
6156 break;
6157 }
6158 }
6159 }
6160
6161 static void mov_free(AVFormatContext *s)
6162 {
6163 MOVMuxContext *mov = s->priv_data;
6164 int i;
6165
6166 if (!mov->tracks)
6167 return;
6168
6169 if (mov->chapter_track) {
6170 if (mov->tracks[mov->chapter_track].par)
6171 av_freep(&mov->tracks[mov->chapter_track].par->extradata);
6172 av_freep(&mov->tracks[mov->chapter_track].par);
6173 }
6174
6175 for (i = 0; i < mov->nb_streams; i++) {
6176 if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
6177 ff_mov_close_hinting(&mov->tracks[i]);
6178 else if (mov->tracks[i].tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd)
6179 av_freep(&mov->tracks[i].par);
6180 av_freep(&mov->tracks[i].cluster);
6181 av_freep(&mov->tracks[i].frag_info);
6182 av_packet_unref(&mov->tracks[i].cover_image);
6183
6184 if (mov->tracks[i].eac3_priv) {
6185 struct eac3_info *info = mov->tracks[i].eac3_priv;
6186 av_packet_unref(&info->pkt);
6187 av_freep(&mov->tracks[i].eac3_priv);
6188 }
6189 if (mov->tracks[i].vos_len)
6190 av_freep(&mov->tracks[i].vos_data);
6191
6192 ff_mov_cenc_free(&mov->tracks[i].cenc);
6193 ffio_free_dyn_buf(&mov->tracks[i].mdat_buf);
6194 }
6195
6196 av_freep(&mov->tracks);
6197 ffio_free_dyn_buf(&mov->mdat_buf);
6198 }
6199
6200 static uint32_t rgb_to_yuv(uint32_t rgb)
6201 {
6202 uint8_t r, g, b;
6203 int y, cb, cr;
6204
6205 r = (rgb >> 16) & 0xFF;
6206 g = (rgb >> 8) & 0xFF;
6207 b = (rgb ) & 0xFF;
6208
6209 y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000);
6210 cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000);
6211 cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000);
6212
6213 return (y << 16) | (cr << 8) | cb;
6214 }
6215
6216 static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
6217 AVStream *st)
6218 {
6219 int i, width = 720, height = 480;
6220 int have_palette = 0, have_size = 0;
6221 uint32_t palette[16];
6222 char *cur = st->codecpar->extradata;
6223
6224 while (cur && *cur) {
6225 if (strncmp("palette:", cur, 8) == 0) {
6226 int i, count;
6227 count = sscanf(cur + 8,
6228 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6229 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6230 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", "
6231 "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"",
6232 &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
6233 &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
6234 &palette[ 8], &palette[ 9], &palette[10], &palette[11],
6235 &palette[12], &palette[13], &palette[14], &palette[15]);
6236
6237 for (i = 0; i < count; i++) {
6238 palette[i] = rgb_to_yuv(palette[i]);
6239 }
6240 have_palette = 1;
6241 } else if (!strncmp("size:", cur, 5)) {
6242 sscanf(cur + 5, "%dx%d", &width, &height);
6243 have_size = 1;
6244 }
6245 if (have_palette && have_size)
6246 break;
6247 cur += strcspn(cur, "\n\r");
6248 cur += strspn(cur, "\n\r");
6249 }
6250 if (have_palette) {
6251 track->vos_data = av_malloc(16*4 + AV_INPUT_BUFFER_PADDING_SIZE);
6252 if (!track->vos_data)
6253 return AVERROR(ENOMEM);
6254 for (i = 0; i < 16; i++) {
6255 AV_WB32(track->vos_data + i * 4, palette[i]);
6256 }
6257 memset(track->vos_data + 16*4, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6258 track->vos_len = 16 * 4;
6259 }
6260 st->codecpar->width = width;
6261 st->codecpar->height = track->height = height;
6262
6263 return 0;
6264 }
6265
6266 static int mov_init(AVFormatContext *s)
6267 {
6268 MOVMuxContext *mov = s->priv_data;
6269 AVDictionaryEntry *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
6270 int i, ret;
6271
6272 mov->fc = s;
6273
6274 /* Default mode == MP4 */
6275 mov->mode = MODE_MP4;
6276
6277 if (s->oformat) {
6278 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
6279 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
6280 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
6281 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
6282 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
6283 else if (!strcmp("ismv",s->oformat->name)) mov->mode = MODE_ISM;
6284 else if (!strcmp("f4v", s->oformat->name)) mov->mode = MODE_F4V;
6285 }
6286
6287 if (mov->flags & FF_MOV_FLAG_DELAY_MOOV)
6288 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV;
6289
6290 /* Set the FRAGMENT flag if any of the fragmentation methods are
6291 * enabled. */
6292 if (mov->max_fragment_duration || mov->max_fragment_size ||
6293 mov->flags & (FF_MOV_FLAG_EMPTY_MOOV |
6294 FF_MOV_FLAG_FRAG_KEYFRAME |
6295 FF_MOV_FLAG_FRAG_CUSTOM |
6296 FF_MOV_FLAG_FRAG_EVERY_FRAME))
6297 mov->flags |= FF_MOV_FLAG_FRAGMENT;
6298
6299 /* Set other implicit flags immediately */
6300 if (mov->mode == MODE_ISM)
6301 mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF |
6302 FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6303 if (mov->flags & FF_MOV_FLAG_DASH)
6304 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6305 FF_MOV_FLAG_DEFAULT_BASE_MOOF;
6306 if (mov->flags & FF_MOV_FLAG_CMAF)
6307 mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV |
6308 FF_MOV_FLAG_DEFAULT_BASE_MOOF | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6309
6310 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && s->flags & AVFMT_FLAG_AUTO_BSF) {
6311 av_log(s, AV_LOG_VERBOSE, "Empty MOOV enabled; disabling automatic bitstream filtering\n");
6312 s->flags &= ~AVFMT_FLAG_AUTO_BSF;
6313 }
6314
6315 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX && mov->flags & FF_MOV_FLAG_SKIP_SIDX) {
6316 av_log(s, AV_LOG_WARNING, "Global SIDX enabled; Ignoring skip_sidx option\n");
6317 mov->flags &= ~FF_MOV_FLAG_SKIP_SIDX;
6318 }
6319
6320 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
6321 mov->reserved_moov_size = -1;
6322 }
6323
6324 if (mov->use_editlist < 0) {
6325 mov->use_editlist = 1;
6326 if (mov->flags & FF_MOV_FLAG_FRAGMENT &&
6327 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6328 // If we can avoid needing an edit list by shifting the
6329 // tracks, prefer that over (trying to) write edit lists
6330 // in fragmented output.
6331 if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO ||
6332 s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)
6333 mov->use_editlist = 0;
6334 }
6335 if (mov->flags & FF_MOV_FLAG_CMAF) {
6336 // CMAF Track requires negative cts offsets without edit lists
6337 mov->use_editlist = 0;
6338 }
6339 }
6340 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6341 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
6342 av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
6343
6344 if (mov->flags & FF_MOV_FLAG_CMAF && mov->use_editlist) {
6345 av_log(s, AV_LOG_WARNING, "Edit list enabled; Assuming writing CMAF Track File\n");
6346 mov->flags &= ~FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
6347 }
6348 if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO &&
6349 !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
6350 s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;
6351
6352 /* Clear the omit_tfhd_offset flag if default_base_moof is set;
6353 * if the latter is set that's enough and omit_tfhd_offset doesn't
6354 * add anything extra on top of that. */
6355 if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
6356 mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)
6357 mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET;
6358
6359 if (mov->frag_interleave &&
6360 mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) {
6361 av_log(s, AV_LOG_ERROR,
6362 "Sample interleaving in fragments is mutually exclusive with "
6363 "omit_tfhd_offset and separate_moof\n");
6364 return AVERROR(EINVAL);
6365 }
6366
6367 /* Non-seekable output is ok if using fragmentation. If ism_lookahead
6368 * is enabled, we don't support non-seekable output at all. */
6369 if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
6370 (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead)) {
6371 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
6372 return AVERROR(EINVAL);
6373 }
6374
6375 mov->nb_streams = s->nb_streams;
6376 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6377 mov->chapter_track = mov->nb_streams++;
6378
6379 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6380 for (i = 0; i < s->nb_streams; i++)
6381 if (rtp_hinting_needed(s->streams[i]))
6382 mov->nb_streams++;
6383 }
6384
6385 if ( mov->write_tmcd == -1 && (mov->mode == MODE_MOV || mov->mode == MODE_MP4)
6386 || mov->write_tmcd == 1) {
6387 /* +1 tmcd track for each video stream with a timecode */
6388 for (i = 0; i < s->nb_streams; i++) {
6389 AVStream *st = s->streams[i];
6390 AVDictionaryEntry *t = global_tcr;
6391 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
6392 (t || (t=av_dict_get(st->metadata, "timecode", NULL, 0)))) {
6393 AVTimecode tc;
6394 ret = mov_check_timecode_track(s, &tc, i, t->value);
6395 if (ret >= 0)
6396 mov->nb_meta_tmcd++;
6397 }
6398 }
6399
6400 /* check if there is already a tmcd track to remux */
6401 if (mov->nb_meta_tmcd) {
6402 for (i = 0; i < s->nb_streams; i++) {
6403 AVStream *st = s->streams[i];
6404 if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) {
6405 av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track "
6406 "so timecode metadata are now ignored\n");
6407 mov->nb_meta_tmcd = 0;
6408 }
6409 }
6410 }
6411
6412 mov->nb_streams += mov->nb_meta_tmcd;
6413 }
6414
6415 // Reserve an extra stream for chapters for the case where chapters
6416 // are written in the trailer
6417 mov->tracks = av_mallocz_array((mov->nb_streams + 1), sizeof(*mov->tracks));
6418 if (!mov->tracks)
6419 return AVERROR(ENOMEM);
6420
6421 if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) {
6422 if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) {
6423 mov->encryption_scheme = MOV_ENC_CENC_AES_CTR;
6424
6425 if (mov->encryption_key_len != AES_CTR_KEY_SIZE) {
6426 av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n",
6427 mov->encryption_key_len, AES_CTR_KEY_SIZE);
6428 return AVERROR(EINVAL);
6429 }
6430
6431 if (mov->encryption_kid_len != CENC_KID_SIZE) {
6432 av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n",
6433 mov->encryption_kid_len, CENC_KID_SIZE);
6434 return AVERROR(EINVAL);
6435 }
6436 } else {
6437 av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n",
6438 mov->encryption_scheme_str);
6439 return AVERROR(EINVAL);
6440 }
6441 }
6442
6443 for (i = 0; i < s->nb_streams; i++) {
6444 AVStream *st= s->streams[i];
6445 MOVTrack *track= &mov->tracks[i];
6446 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
6447
6448 track->st = st;
6449 track->par = st->codecpar;
6450 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
6451 if (track->language < 0)
6452 track->language = 32767; // Unspecified Macintosh language code
6453 track->mode = mov->mode;
6454 track->tag = mov_find_codec_tag(s, track);
6455 if (!track->tag) {
6456 av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, "
6457 "codec not currently supported in container\n",
6458 avcodec_get_name(st->codecpar->codec_id), i);
6459 return AVERROR(EINVAL);
6460 }
6461 /* If hinting of this track is enabled by a later hint track,
6462 * this is updated. */
6463 track->hint_track = -1;
6464 track->start_dts = AV_NOPTS_VALUE;
6465 track->start_cts = AV_NOPTS_VALUE;
6466 track->end_pts = AV_NOPTS_VALUE;
6467 track->dts_shift = AV_NOPTS_VALUE;
6468 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6469 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
6470 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
6471 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
6472 if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) {
6473 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
6474 return AVERROR(EINVAL);
6475 }
6476 track->height = track->tag >> 24 == 'n' ? 486 : 576;
6477 }
6478 if (mov->video_track_timescale) {
6479 track->timescale = mov->video_track_timescale;
6480 if (mov->mode == MODE_ISM && mov->video_track_timescale != 10000000)
6481 av_log(s, AV_LOG_WARNING, "Warning: some tools, like mp4split, assume a timescale of 10000000 for ISMV.\n");
6482 } else {
6483 track->timescale = st->time_base.den;
6484 while(track->timescale < 10000)
6485 track->timescale *= 2;
6486 }
6487 if (st->codecpar->width > 65535 || st->codecpar->height > 65535) {
6488 av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height);
6489 return AVERROR(EINVAL);
6490 }
6491 if (track->mode == MODE_MOV && track->timescale > 100000)
6492 av_log(s, AV_LOG_WARNING,
6493 "WARNING codec timebase is very high. If duration is too long,\n"
6494 "file may not be playable by quicktime. Specify a shorter timebase\n"
6495 "or choose different container.\n");
6496 if (track->mode == MODE_MOV &&
6497 track->par->codec_id == AV_CODEC_ID_RAWVIDEO &&
6498 track->tag == MKTAG('r','a','w',' ')) {
6499 enum AVPixelFormat pix_fmt = track->par->format;
6500 if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1)
6501 pix_fmt = AV_PIX_FMT_MONOWHITE;
6502 track->is_unaligned_qt_rgb =
6503 pix_fmt == AV_PIX_FMT_RGB24 ||
6504 pix_fmt == AV_PIX_FMT_BGR24 ||
6505 pix_fmt == AV_PIX_FMT_PAL8 ||
6506 pix_fmt == AV_PIX_FMT_GRAY8 ||
6507 pix_fmt == AV_PIX_FMT_MONOWHITE ||
6508 pix_fmt == AV_PIX_FMT_MONOBLACK;
6509 }
6510 if (track->par->codec_id == AV_CODEC_ID_VP9 ||
6511 track->par->codec_id == AV_CODEC_ID_AV1) {
6512 if (track->mode != MODE_MP4) {
6513 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6514 return AVERROR(EINVAL);
6515 }
6516 } else if (track->par->codec_id == AV_CODEC_ID_VP8) {
6517 /* altref frames handling is not defined in the spec as of version v1.0,
6518 * so just forbid muxing VP8 streams altogether until a new version does */
6519 av_log(s, AV_LOG_ERROR, "VP8 muxing is currently not supported.\n");
6520 return AVERROR_PATCHWELCOME;
6521 }
6522 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
6523 track->timescale = st->codecpar->sample_rate;
6524 if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) {
6525 av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i);
6526 track->audio_vbr = 1;
6527 }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS ||
6528 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
6529 st->codecpar->codec_id == AV_CODEC_ID_ILBC){
6530 if (!st->codecpar->block_align) {
6531 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
6532 return AVERROR(EINVAL);
6533 }
6534 track->sample_size = st->codecpar->block_align;
6535 }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */
6536 track->audio_vbr = 1;
6537 }else{
6538 track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->channels;
6539 }
6540 if (st->codecpar->codec_id == AV_CODEC_ID_ILBC ||
6541 st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) {
6542 track->audio_vbr = 1;
6543 }
6544 if (track->mode != MODE_MOV &&
6545 track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) {
6546 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
6547 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n",
6548 i, track->par->sample_rate);
6549 return AVERROR(EINVAL);
6550 } else {
6551 av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n",
6552 i, track->par->sample_rate);
6553 }
6554 }
6555 if (track->par->codec_id == AV_CODEC_ID_FLAC ||
6556 track->par->codec_id == AV_CODEC_ID_TRUEHD ||
6557 track->par->codec_id == AV_CODEC_ID_OPUS) {
6558 if (track->mode != MODE_MP4) {
6559 av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id));
6560 return AVERROR(EINVAL);
6561 }
6562 if (track->par->codec_id != AV_CODEC_ID_OPUS &&
6563 s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
6564 av_log(s, AV_LOG_ERROR,
6565 "%s in MP4 support is experimental, add "
6566 "'-strict %d' if you want to use it.\n",
6567 avcodec_get_name(track->par->codec_id), FF_COMPLIANCE_EXPERIMENTAL);
6568 return AVERROR_EXPERIMENTAL;
6569 }
6570 }
6571 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
6572 track->timescale = st->time_base.den;
6573 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
6574 track->timescale = st->time_base.den;
6575 } else {
6576 track->timescale = MOV_TIMESCALE;
6577 }
6578 if (!track->height)
6579 track->height = st->codecpar->height;
6580 /* The Protected Interoperable File Format (PIFF) standard, used by ISMV recommends but
6581 doesn't mandate a track timescale of 10,000,000. The muxer allows a custom timescale
6582 for video tracks, so if user-set, it isn't overwritten */
6583 if (mov->mode == MODE_ISM &&
6584 (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO ||
6585 (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !mov->video_track_timescale))) {
6586 track->timescale = 10000000;
6587 }
6588
6589 avpriv_set_pts_info(st, 64, 1, track->timescale);
6590
6591 if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
6592 ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
6593 track->par->codec_id == AV_CODEC_ID_H264, s->flags & AVFMT_FLAG_BITEXACT);
6594 if (ret)
6595 return ret;
6596 }
6597 }
6598
6599 enable_tracks(s);
6600 return 0;
6601 }
6602
6603 static int mov_write_header(AVFormatContext *s)
6604 {
6605 AVIOContext *pb = s->pb;
6606 MOVMuxContext *mov = s->priv_data;
6607 AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
6608 int i, ret, hint_track = 0, tmcd_track = 0, nb_tracks = s->nb_streams;
6609
6610 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters)
6611 nb_tracks++;
6612
6613 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6614 hint_track = nb_tracks;
6615 for (i = 0; i < s->nb_streams; i++)
6616 if (rtp_hinting_needed(s->streams[i]))
6617 nb_tracks++;
6618 }
6619
6620 if (mov->nb_meta_tmcd)
6621 tmcd_track = nb_tracks;
6622
6623 for (i = 0; i < s->nb_streams; i++) {
6624 int j;
6625 AVStream *st= s->streams[i];
6626 MOVTrack *track= &mov->tracks[i];
6627
6628 /* copy extradata if it exists */
6629 if (st->codecpar->extradata_size) {
6630 if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
6631 mov_create_dvd_sub_decoder_specific_info(track, st);
6632 else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) {
6633 track->vos_len = st->codecpar->extradata_size;
6634 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
6635 if (!track->vos_data) {
6636 return AVERROR(ENOMEM);
6637 }
6638 memcpy(track->vos_data, st->codecpar->extradata, track->vos_len);
6639 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6640 }
6641 }
6642
6643 if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6644 track->par->channel_layout != AV_CH_LAYOUT_MONO)
6645 continue;
6646
6647 for (j = 0; j < s->nb_streams; j++) {
6648 AVStream *stj= s->streams[j];
6649 MOVTrack *trackj= &mov->tracks[j];
6650 if (j == i)
6651 continue;
6652
6653 if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO ||
6654 trackj->par->channel_layout != AV_CH_LAYOUT_MONO ||
6655 trackj->language != track->language ||
6656 trackj->tag != track->tag
6657 )
6658 continue;
6659 track->multichannel_as_mono++;
6660 }
6661 }
6662
6663 if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6664 if ((ret = mov_write_identification(pb, s)) < 0)
6665 return ret;
6666 }
6667
6668 if (mov->reserved_moov_size){
6669 mov->reserved_header_pos = avio_tell(pb);
6670 if (mov->reserved_moov_size > 0)
6671 avio_skip(pb, mov->reserved_moov_size);
6672 }
6673
6674 if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
6675 /* If no fragmentation options have been set, set a default. */
6676 if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
6677 FF_MOV_FLAG_FRAG_CUSTOM |
6678 FF_MOV_FLAG_FRAG_EVERY_FRAME)) &&
6679 !mov->max_fragment_duration && !mov->max_fragment_size)
6680 mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME;
6681 } else {
6682 if (mov->flags & FF_MOV_FLAG_FASTSTART)
6683 mov->reserved_header_pos = avio_tell(pb);
6684 mov_write_mdat_tag(pb, mov);
6685 }
6686
6687 ff_parse_creation_time_metadata(s, &mov->time, 1);
6688 if (mov->time)
6689 mov->time += 0x7C25B080; // 1970 based -> 1904 based
6690
6691 if (mov->chapter_track)
6692 if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6693 return ret;
6694
6695 if (mov->flags & FF_MOV_FLAG_RTP_HINT) {
6696 for (i = 0; i < s->nb_streams; i++) {
6697 if (rtp_hinting_needed(s->streams[i])) {
6698 if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0)
6699 return ret;
6700 hint_track++;
6701 }
6702 }
6703 }
6704
6705 if (mov->nb_meta_tmcd) {
6706 /* Initialize the tmcd tracks */
6707 for (i = 0; i < s->nb_streams; i++) {
6708 AVStream *st = s->streams[i];
6709 t = global_tcr;
6710
6711 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
6712 AVTimecode tc;
6713 if (!t)
6714 t = av_dict_get(st->metadata, "timecode", NULL, 0);
6715 if (!t)
6716 continue;
6717 if (mov_check_timecode_track(s, &tc, i, t->value) < 0)
6718 continue;
6719 if ((ret = mov_create_timecode_track(s, tmcd_track, i, tc)) < 0)
6720 return ret;
6721 tmcd_track++;
6722 }
6723 }
6724 }
6725
6726 avio_flush(pb);
6727
6728 if (mov->flags & FF_MOV_FLAG_ISML)
6729 mov_write_isml_manifest(pb, mov, s);
6730
6731 if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV &&
6732 !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) {
6733 if ((ret = mov_write_moov_tag(pb, mov, s)) < 0)
6734 return ret;
6735 mov->moov_written = 1;
6736 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX)
6737 mov->reserved_header_pos = avio_tell(pb);
6738 }
6739
6740 return 0;
6741 }
6742
6743 static int get_moov_size(AVFormatContext *s)
6744 {
6745 int ret;
6746 AVIOContext *moov_buf;
6747 MOVMuxContext *mov = s->priv_data;
6748
6749 if ((ret = ffio_open_null_buf(&moov_buf)) < 0)
6750 return ret;
6751 if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0)
6752 return ret;
6753 return ffio_close_null_buf(moov_buf);
6754 }
6755
6756 static int get_sidx_size(AVFormatContext *s)
6757 {
6758 int ret;
6759 AVIOContext *buf;
6760 MOVMuxContext *mov = s->priv_data;
6761
6762 if ((ret = ffio_open_null_buf(&buf)) < 0)
6763 return ret;
6764 mov_write_sidx_tags(buf, mov, -1, 0);
6765 return ffio_close_null_buf(buf);
6766 }
6767
6768 /*
6769 * This function gets the moov size if moved to the top of the file: the chunk
6770 * offset table can switch between stco (32-bit entries) to co64 (64-bit
6771 * entries) when the moov is moved to the beginning, so the size of the moov
6772 * would change. It also updates the chunk offset tables.
6773 */
6774 static int compute_moov_size(AVFormatContext *s)
6775 {
6776 int i, moov_size, moov_size2;
6777 MOVMuxContext *mov = s->priv_data;
6778
6779 moov_size = get_moov_size(s);
6780 if (moov_size < 0)
6781 return moov_size;
6782
6783 for (i = 0; i < mov->nb_streams; i++)
6784 mov->tracks[i].data_offset += moov_size;
6785
6786 moov_size2 = get_moov_size(s);
6787 if (moov_size2 < 0)
6788 return moov_size2;
6789
6790 /* if the size changed, we just switched from stco to co64 and need to
6791 * update the offsets */
6792 if (moov_size2 != moov_size)
6793 for (i = 0; i < mov->nb_streams; i++)
6794 mov->tracks[i].data_offset += moov_size2 - moov_size;
6795
6796 return moov_size2;
6797 }
6798
6799 static int compute_sidx_size(AVFormatContext *s)
6800 {
6801 int i, sidx_size;
6802 MOVMuxContext *mov = s->priv_data;
6803
6804 sidx_size = get_sidx_size(s);
6805 if (sidx_size < 0)
6806 return sidx_size;
6807
6808 for (i = 0; i < mov->nb_streams; i++)
6809 mov->tracks[i].data_offset += sidx_size;
6810
6811 return sidx_size;
6812 }
6813
6814 static int shift_data(AVFormatContext *s)
6815 {
6816 int ret = 0, moov_size;
6817 MOVMuxContext *mov = s->priv_data;
6818 int64_t pos, pos_end;
6819 uint8_t *buf, *read_buf[2];
6820 int read_buf_id = 0;
6821 int read_size[2];
6822 AVIOContext *read_pb;
6823
6824 if (mov->flags & FF_MOV_FLAG_FRAGMENT)
6825 moov_size = compute_sidx_size(s);
6826 else
6827 moov_size = compute_moov_size(s);
6828 if (moov_size < 0)
6829 return moov_size;
6830
6831 buf = av_malloc(moov_size * 2);
6832 if (!buf)
6833 return AVERROR(ENOMEM);
6834 read_buf[0] = buf;
6835 read_buf[1] = buf + moov_size;
6836
6837 /* Shift the data: the AVIO context of the output can only be used for
6838 * writing, so we re-open the same output, but for reading. It also avoids
6839 * a read/seek/write/seek back and forth. */
6840 avio_flush(s->pb);
6841 ret = s->io_open(s, &read_pb, s->url, AVIO_FLAG_READ, NULL);
6842 if (ret < 0) {
6843 av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
6844 "the second pass (faststart)\n", s->url);
6845 goto end;
6846 }
6847
6848 /* mark the end of the shift to up to the last data we wrote, and get ready
6849 * for writing */
6850 pos_end = avio_tell(s->pb);
6851 avio_seek(s->pb, mov->reserved_header_pos + moov_size, SEEK_SET);
6852
6853 /* start reading at where the new moov will be placed */
6854 avio_seek(read_pb, mov->reserved_header_pos, SEEK_SET);
6855 pos = avio_tell(read_pb);
6856
6857 #define READ_BLOCK do { \
6858 read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], moov_size); \
6859 read_buf_id ^= 1; \
6860 } while (0)
6861
6862 /* shift data by chunk of at most moov_size */
6863 READ_BLOCK;
6864 do {
6865 int n;
6866 READ_BLOCK;
6867 n = read_size[read_buf_id];
6868 if (n <= 0)
6869 break;
6870 avio_write(s->pb, read_buf[read_buf_id], n);
6871 pos += n;
6872 } while (pos < pos_end);
6873 ff_format_io_close(s, &read_pb);
6874
6875 end:
6876 av_free(buf);
6877 return ret;
6878 }
6879
6880 static int mov_write_trailer(AVFormatContext *s)
6881 {
6882 MOVMuxContext *mov = s->priv_data;
6883 AVIOContext *pb = s->pb;
6884 int res = 0;
6885 int i;
6886 int64_t moov_pos;
6887
6888 if (mov->need_rewrite_extradata) {
6889 for (i = 0; i < s->nb_streams; i++) {
6890 MOVTrack *track = &mov->tracks[i];
6891 AVCodecParameters *par = track->par;
6892
6893 track->vos_len = par->extradata_size;
6894 av_freep(&track->vos_data);
6895 track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
6896 if (!track->vos_data)
6897 return AVERROR(ENOMEM);
6898 memcpy(track->vos_data, par->extradata, track->vos_len);
6899 memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
6900 }
6901 mov->need_rewrite_extradata = 0;
6902 }
6903
6904 /*
6905 * Before actually writing the trailer, make sure that there are no
6906 * dangling subtitles, that need a terminating sample.
6907 */
6908 for (i = 0; i < mov->nb_streams; i++) {
6909 MOVTrack *trk = &mov->tracks[i];
6910 if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT &&
6911 !trk->last_sample_is_subtitle_end) {
6912 mov_write_subtitle_end_packet(s, i, trk->track_duration);
6913 trk->last_sample_is_subtitle_end = 1;
6914 }
6915 }
6916
6917 // If there were no chapters when the header was written, but there
6918 // are chapters now, write them in the trailer. This only works
6919 // when we are not doing fragments.
6920 if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
6921 if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) {
6922 mov->chapter_track = mov->nb_streams++;
6923 if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0)
6924 return res;
6925 }
6926 }
6927
6928 if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) {
6929 moov_pos = avio_tell(pb);
6930
6931 /* Write size of mdat tag */
6932 if (mov->mdat_size + 8 <= UINT32_MAX) {
6933 avio_seek(pb, mov->mdat_pos, SEEK_SET);
6934 avio_wb32(pb, mov->mdat_size + 8);
6935 } else {
6936 /* overwrite 'wide' placeholder atom */
6937 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
6938 /* special value: real atom size will be 64 bit value after
6939 * tag field */
6940 avio_wb32(pb, 1);
6941 ffio_wfourcc(pb, "mdat");
6942 avio_wb64(pb, mov->mdat_size + 16);
6943 }
6944 avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET);
6945
6946 if (mov->flags & FF_MOV_FLAG_FASTSTART) {
6947 av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n");
6948 res = shift_data(s);
6949 if (res < 0)
6950 return res;
6951 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
6952 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6953 return res;
6954 } else if (mov->reserved_moov_size > 0) {
6955 int64_t size;
6956 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6957 return res;
6958 size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos);
6959 if (size < 8){
6960 av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
6961 return AVERROR(EINVAL);
6962 }
6963 avio_wb32(pb, size);
6964 ffio_wfourcc(pb, "free");
6965 ffio_fill(pb, 0, size - 8);
6966 avio_seek(pb, moov_pos, SEEK_SET);
6967 } else {
6968 if ((res = mov_write_moov_tag(pb, mov, s)) < 0)
6969 return res;
6970 }
6971 res = 0;
6972 } else {
6973 mov_auto_flush_fragment(s, 1);
6974 for (i = 0; i < mov->nb_streams; i++)
6975 mov->tracks[i].data_offset = 0;
6976 if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
6977 int64_t end;
6978 av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n");
6979 res = shift_data(s);
6980 if (res < 0)
6981 return res;
6982 end = avio_tell(pb);
6983 avio_seek(pb, mov->reserved_header_pos, SEEK_SET);
6984 mov_write_sidx_tags(pb, mov, -1, 0);
6985 avio_seek(pb, end, SEEK_SET);
6986 }
6987 if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) {
6988 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER);
6989 mov_write_mfra_tag(pb, mov);
6990 }
6991 }
6992
6993 return res;
6994 }
6995
6996 static int mov_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
6997 {
6998 int ret = 1;
6999 AVStream *st = s->streams[pkt->stream_index];
7000
7001 if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
7002 if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0)
7003 ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL);
7004 } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) {
7005 ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL);
7006 }
7007
7008 return ret;
7009 }
7010
7011 static const AVCodecTag codec_3gp_tags[] = {
7012 { AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
7013 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7014 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7015 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7016 { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
7017 { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
7018 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7019 { AV_CODEC_ID_NONE, 0 },
7020 };
7021
7022 const AVCodecTag codec_mp4_tags[] = {
7023 { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
7024 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
7025 { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
7026 { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') },
7027 { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') },
7028 { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '4', 'v') },
7029 { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '4', 'v') },
7030 { AV_CODEC_ID_MJPEG, MKTAG('m', 'p', '4', 'v') },
7031 { AV_CODEC_ID_PNG, MKTAG('m', 'p', '4', 'v') },
7032 { AV_CODEC_ID_JPEG2000, MKTAG('m', 'p', '4', 'v') },
7033 { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') },
7034 { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
7035 { AV_CODEC_ID_TSCC2, MKTAG('m', 'p', '4', 'v') },
7036 { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') },
7037 { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') },
7038 { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
7039 { AV_CODEC_ID_MP4ALS, MKTAG('m', 'p', '4', 'a') },
7040 { AV_CODEC_ID_MP3, MKTAG('m', 'p', '4', 'a') },
7041 { AV_CODEC_ID_MP2, MKTAG('m', 'p', '4', 'a') },
7042 { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') },
7043 { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') },
7044 { AV_CODEC_ID_DTS, MKTAG('m', 'p', '4', 'a') },
7045 { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') },
7046 { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') },
7047 { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') },
7048 { AV_CODEC_ID_VORBIS, MKTAG('m', 'p', '4', 'a') },
7049 { AV_CODEC_ID_QCELP, MKTAG('m', 'p', '4', 'a') },
7050 { AV_CODEC_ID_EVRC, MKTAG('m', 'p', '4', 'a') },
7051 { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') },
7052 { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
7053 { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
7054 { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') },
7055 { AV_CODEC_ID_NONE, 0 },
7056 };
7057
7058 const AVCodecTag codec_ism_tags[] = {
7059 { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') },
7060 { AV_CODEC_ID_NONE , 0 },
7061 };
7062
7063 static const AVCodecTag codec_ipod_tags[] = {
7064 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7065 { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
7066 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7067 { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
7068 { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
7069 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
7070 { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
7071 { AV_CODEC_ID_NONE, 0 },
7072 };
7073
7074 static const AVCodecTag codec_f4v_tags[] = {
7075 { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
7076 { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
7077 { AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
7078 { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
7079 { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
7080 { AV_CODEC_ID_NONE, 0 },
7081 };
7082
7083 #if CONFIG_MOV_MUXER
7084 MOV_CLASS(mov)
7085 AVOutputFormat ff_mov_muxer = {
7086 .name = "mov",
7087 .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
7088 .extensions = "mov",
7089 .priv_data_size = sizeof(MOVMuxContext),
7090 .audio_codec = AV_CODEC_ID_AAC,
7091 .video_codec = CONFIG_LIBX264_ENCODER ?
7092 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7093 .init = mov_init,
7094 .write_header = mov_write_header,
7095 .write_packet = mov_write_packet,
7096 .write_trailer = mov_write_trailer,
7097 .deinit = mov_free,
7098 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7099 .codec_tag = (const AVCodecTag* const []){
7100 ff_codec_movvideo_tags, ff_codec_movaudio_tags, ff_codec_movsubtitle_tags, 0
7101 },
7102 .check_bitstream = mov_check_bitstream,
7103 .priv_class = &mov_muxer_class,
7104 };
7105 #endif
7106 #if CONFIG_TGP_MUXER
7107 MOV_CLASS(tgp)
7108 AVOutputFormat ff_tgp_muxer = {
7109 .name = "3gp",
7110 .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"),
7111 .extensions = "3gp",
7112 .priv_data_size = sizeof(MOVMuxContext),
7113 .audio_codec = AV_CODEC_ID_AMR_NB,
7114 .video_codec = AV_CODEC_ID_H263,
7115 .init = mov_init,
7116 .write_header = mov_write_header,
7117 .write_packet = mov_write_packet,
7118 .write_trailer = mov_write_trailer,
7119 .deinit = mov_free,
7120 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7121 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
7122 .check_bitstream = mov_check_bitstream,
7123 .priv_class = &tgp_muxer_class,
7124 };
7125 #endif
7126 #if CONFIG_MP4_MUXER
7127 MOV_CLASS(mp4)
7128 AVOutputFormat ff_mp4_muxer = {
7129 .name = "mp4",
7130 .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"),
7131 .mime_type = "video/mp4",
7132 .extensions = "mp4",
7133 .priv_data_size = sizeof(MOVMuxContext),
7134 .audio_codec = AV_CODEC_ID_AAC,
7135 .video_codec = CONFIG_LIBX264_ENCODER ?
7136 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7137 .init = mov_init,
7138 .write_header = mov_write_header,
7139 .write_packet = mov_write_packet,
7140 .write_trailer = mov_write_trailer,
7141 .deinit = mov_free,
7142 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7143 .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, 0 },
7144 .check_bitstream = mov_check_bitstream,
7145 .priv_class = &mp4_muxer_class,
7146 };
7147 #endif
7148 #if CONFIG_PSP_MUXER
7149 MOV_CLASS(psp)
7150 AVOutputFormat ff_psp_muxer = {
7151 .name = "psp",
7152 .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"),
7153 .extensions = "mp4,psp",
7154 .priv_data_size = sizeof(MOVMuxContext),
7155 .audio_codec = AV_CODEC_ID_AAC,
7156 .video_codec = CONFIG_LIBX264_ENCODER ?
7157 AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4,
7158 .init = mov_init,
7159 .write_header = mov_write_header,
7160 .write_packet = mov_write_packet,
7161 .write_trailer = mov_write_trailer,
7162 .deinit = mov_free,
7163 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7164 .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, 0 },
7165 .check_bitstream = mov_check_bitstream,
7166 .priv_class = &psp_muxer_class,
7167 };
7168 #endif
7169 #if CONFIG_TG2_MUXER
7170 MOV_CLASS(tg2)
7171 AVOutputFormat ff_tg2_muxer = {
7172 .name = "3g2",
7173 .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"),
7174 .extensions = "3g2",
7175 .priv_data_size = sizeof(MOVMuxContext),
7176 .audio_codec = AV_CODEC_ID_AMR_NB,
7177 .video_codec = AV_CODEC_ID_H263,
7178 .init = mov_init,
7179 .write_header = mov_write_header,
7180 .write_packet = mov_write_packet,
7181 .write_trailer = mov_write_trailer,
7182 .deinit = mov_free,
7183 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7184 .codec_tag = (const AVCodecTag* const []){ codec_3gp_tags, 0 },
7185 .check_bitstream = mov_check_bitstream,
7186 .priv_class = &tg2_muxer_class,
7187 };
7188 #endif
7189 #if CONFIG_IPOD_MUXER
7190 MOV_CLASS(ipod)
7191 AVOutputFormat ff_ipod_muxer = {
7192 .name = "ipod",
7193 .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"),
7194 .mime_type = "video/mp4",
7195 .extensions = "m4v,m4a,m4b",
7196 .priv_data_size = sizeof(MOVMuxContext),
7197 .audio_codec = AV_CODEC_ID_AAC,
7198 .video_codec = AV_CODEC_ID_H264,
7199 .init = mov_init,
7200 .write_header = mov_write_header,
7201 .write_packet = mov_write_packet,
7202 .write_trailer = mov_write_trailer,
7203 .deinit = mov_free,
7204 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7205 .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 },
7206 .check_bitstream = mov_check_bitstream,
7207 .priv_class = &ipod_muxer_class,
7208 };
7209 #endif
7210 #if CONFIG_ISMV_MUXER
7211 MOV_CLASS(ismv)
7212 AVOutputFormat ff_ismv_muxer = {
7213 .name = "ismv",
7214 .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"),
7215 .mime_type = "video/mp4",
7216 .extensions = "ismv,isma",
7217 .priv_data_size = sizeof(MOVMuxContext),
7218 .audio_codec = AV_CODEC_ID_AAC,
7219 .video_codec = AV_CODEC_ID_H264,
7220 .init = mov_init,
7221 .write_header = mov_write_header,
7222 .write_packet = mov_write_packet,
7223 .write_trailer = mov_write_trailer,
7224 .deinit = mov_free,
7225 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE,
7226 .codec_tag = (const AVCodecTag* const []){
7227 codec_mp4_tags, codec_ism_tags, 0 },
7228 .check_bitstream = mov_check_bitstream,
7229 .priv_class = &ismv_muxer_class,
7230 };
7231 #endif
7232 #if CONFIG_F4V_MUXER
7233 MOV_CLASS(f4v)
7234 AVOutputFormat ff_f4v_muxer = {
7235 .name = "f4v",
7236 .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"),
7237 .mime_type = "application/f4v",
7238 .extensions = "f4v",
7239 .priv_data_size = sizeof(MOVMuxContext),
7240 .audio_codec = AV_CODEC_ID_AAC,
7241 .video_codec = AV_CODEC_ID_H264,
7242 .init = mov_init,
7243 .write_header = mov_write_header,
7244 .write_packet = mov_write_packet,
7245 .write_trailer = mov_write_trailer,
7246 .deinit = mov_free,
7247 .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH,
7248 .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 },
7249 .check_bitstream = mov_check_bitstream,
7250 .priv_class = &f4v_muxer_class,
7251 };
7252 #endif
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