FFmpeg
movenc.c
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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"
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/color_utils.h"
55 #include "hevc.h"
56 #include "rtpenc.h"
57 #include "mov_chan.h"
58 #include "vpcc.h"
59 
60 static const AVOption options[] = {
61  { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
62  { "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" },
63  { "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 },
64  { "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" },
65  { "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" },
66  { "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" },
67  { "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" },
68  { "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" },
69  { "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" },
70  { "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" },
71  { "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" },
72  { "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" },
73  { "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" },
74  { "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" },
75  { "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" },
76  { "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" },
77  { "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" },
78  { "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" },
79  { "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" },
80  { "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" },
81  { "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" },
82  { "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" },
83  { "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" },
84  FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
85  { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
86  { "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},
87  { "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},
88  { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
89  { "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},
90  { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
91  { "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},
92  { "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},
93  { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
94  { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
95  { "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},
96  { "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},
97  { "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 },
98  { "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 },
99  { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
100  { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM },
101  { "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},
102  { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
103  { "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"},
104  { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
105  { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"},
106  { "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},
107  { NULL },
108 };
109 
110 #define MOV_CLASS(flavor)\
111 static const AVClass flavor ## _muxer_class = {\
112  .class_name = #flavor " muxer",\
113  .item_name = av_default_item_name,\
114  .option = options,\
115  .version = LIBAVUTIL_VERSION_INT,\
116 };
117 
118 static int get_moov_size(AVFormatContext *s);
119 
120 static int utf8len(const uint8_t *b)
121 {
122  int len = 0;
123  int val;
124  while (*b) {
125  GET_UTF8(val, *b++, return -1;)
126  len++;
127  }
128  return len;
129 }
130 
131 //FIXME support 64 bit variant with wide placeholders
132 static int64_t update_size(AVIOContext *pb, int64_t pos)
133 {
134  int64_t curpos = avio_tell(pb);
135  avio_seek(pb, pos, SEEK_SET);
136  avio_wb32(pb, curpos - pos); /* rewrite size */
137  avio_seek(pb, curpos, SEEK_SET);
138 
139  return curpos - pos;
140 }
141 
142 static int co64_required(const MOVTrack *track)
143 {
144  if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
145  return 1;
146  return 0;
147 }
148 
149 static int is_cover_image(const AVStream *st)
150 {
151  /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS
152  * is encoded as sparse video track */
153  return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC;
154 }
155 
156 static int rtp_hinting_needed(const AVStream *st)
157 {
158  /* Add hint tracks for each real audio and video stream */
159  if (is_cover_image(st))
160  return 0;
161  return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
163 }
164 
165 /* Chunk offset atom */
166 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
167 {
168  int i;
169  int mode64 = co64_required(track); // use 32 bit size variant if possible
170  int64_t pos = avio_tell(pb);
171  avio_wb32(pb, 0); /* size */
172  if (mode64)
173  ffio_wfourcc(pb, "co64");
174  else
175  ffio_wfourcc(pb, "stco");
176  avio_wb32(pb, 0); /* version & flags */
177  avio_wb32(pb, track->chunkCount); /* entry count */
178  for (i = 0; i < track->entry; i++) {
179  if (!track->cluster[i].chunkNum)
180  continue;
181  if (mode64 == 1)
182  avio_wb64(pb, track->cluster[i].pos + track->data_offset);
183  else
184  avio_wb32(pb, track->cluster[i].pos + track->data_offset);
185  }
186  return update_size(pb, pos);
187 }
188 
189 /* Sample size atom */
190 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
191 {
192  int equalChunks = 1;
193  int i, j, entries = 0, tst = -1, oldtst = -1;
194 
195  int64_t pos = avio_tell(pb);
196  avio_wb32(pb, 0); /* size */
197  ffio_wfourcc(pb, "stsz");
198  avio_wb32(pb, 0); /* version & flags */
199 
200  for (i = 0; i < track->entry; i++) {
201  tst = track->cluster[i].size / track->cluster[i].entries;
202  if (oldtst != -1 && tst != oldtst)
203  equalChunks = 0;
204  oldtst = tst;
205  entries += track->cluster[i].entries;
206  }
207  if (equalChunks && track->entry) {
208  int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
209  sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
210  avio_wb32(pb, sSize); // sample size
211  avio_wb32(pb, entries); // sample count
212  } else {
213  avio_wb32(pb, 0); // sample size
214  avio_wb32(pb, entries); // sample count
215  for (i = 0; i < track->entry; i++) {
216  for (j = 0; j < track->cluster[i].entries; j++) {
217  avio_wb32(pb, track->cluster[i].size /
218  track->cluster[i].entries);
219  }
220  }
221  }
222  return update_size(pb, pos);
223 }
224 
225 /* Sample to chunk atom */
226 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
227 {
228  int index = 0, oldval = -1, i;
229  int64_t entryPos, curpos;
230 
231  int64_t pos = avio_tell(pb);
232  avio_wb32(pb, 0); /* size */
233  ffio_wfourcc(pb, "stsc");
234  avio_wb32(pb, 0); // version & flags
235  entryPos = avio_tell(pb);
236  avio_wb32(pb, track->chunkCount); // entry count
237  for (i = 0; i < track->entry; i++) {
238  if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
239  avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
240  avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
241  avio_wb32(pb, 0x1); // sample description index
242  oldval = track->cluster[i].samples_in_chunk;
243  index++;
244  }
245  }
246  curpos = avio_tell(pb);
247  avio_seek(pb, entryPos, SEEK_SET);
248  avio_wb32(pb, index); // rewrite size
249  avio_seek(pb, curpos, SEEK_SET);
250 
251  return update_size(pb, pos);
252 }
253 
254 /* Sync sample atom */
255 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
256 {
257  int64_t curpos, entryPos;
258  int i, index = 0;
259  int64_t pos = avio_tell(pb);
260  avio_wb32(pb, 0); // size
261  ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
262  avio_wb32(pb, 0); // version & flags
263  entryPos = avio_tell(pb);
264  avio_wb32(pb, track->entry); // entry count
265  for (i = 0; i < track->entry; i++) {
266  if (track->cluster[i].flags & flag) {
267  avio_wb32(pb, i + 1);
268  index++;
269  }
270  }
271  curpos = avio_tell(pb);
272  avio_seek(pb, entryPos, SEEK_SET);
273  avio_wb32(pb, index); // rewrite size
274  avio_seek(pb, curpos, SEEK_SET);
275  return update_size(pb, pos);
276 }
277 
278 /* Sample dependency atom */
279 static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track)
280 {
281  int i;
282  uint8_t leading, dependent, reference, redundancy;
283  int64_t pos = avio_tell(pb);
284  avio_wb32(pb, 0); // size
285  ffio_wfourcc(pb, "sdtp");
286  avio_wb32(pb, 0); // version & flags
287  for (i = 0; i < track->entry; i++) {
288  dependent = MOV_SAMPLE_DEPENDENCY_YES;
289  leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN;
290  if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) {
291  reference = MOV_SAMPLE_DEPENDENCY_NO;
292  }
293  if (track->cluster[i].flags & MOV_SYNC_SAMPLE) {
294  dependent = MOV_SAMPLE_DEPENDENCY_NO;
295  }
296  avio_w8(pb, (leading << 6) | (dependent << 4) |
297  (reference << 2) | redundancy);
298  }
299  return update_size(pb, pos);
300 }
301 
302 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
303 {
304  avio_wb32(pb, 0x11); /* size */
305  if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
306  else ffio_wfourcc(pb, "damr");
307  ffio_wfourcc(pb, "FFMP");
308  avio_w8(pb, 0); /* decoder version */
309 
310  avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
311  avio_w8(pb, 0x00); /* Mode change period (no restriction) */
312  avio_w8(pb, 0x01); /* Frames per sample */
313  return 0x11;
314 }
315 
317 {
318  GetBitContext gbc;
319  PutBitContext pbc;
320  uint8_t buf[3];
321  int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
322 
323  if (track->vos_len < 7) {
324  av_log(s, AV_LOG_ERROR,
325  "Cannot write moov atom before AC3 packets."
326  " Set the delay_moov flag to fix this.\n");
327  return AVERROR(EINVAL);
328  }
329 
330  avio_wb32(pb, 11);
331  ffio_wfourcc(pb, "dac3");
332 
333  init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
334  fscod = get_bits(&gbc, 2);
335  frmsizecod = get_bits(&gbc, 6);
336  bsid = get_bits(&gbc, 5);
337  bsmod = get_bits(&gbc, 3);
338  acmod = get_bits(&gbc, 3);
339  if (acmod == 2) {
340  skip_bits(&gbc, 2); // dsurmod
341  } else {
342  if ((acmod & 1) && acmod != 1)
343  skip_bits(&gbc, 2); // cmixlev
344  if (acmod & 4)
345  skip_bits(&gbc, 2); // surmixlev
346  }
347  lfeon = get_bits1(&gbc);
348 
349  init_put_bits(&pbc, buf, sizeof(buf));
350  put_bits(&pbc, 2, fscod);
351  put_bits(&pbc, 5, bsid);
352  put_bits(&pbc, 3, bsmod);
353  put_bits(&pbc, 3, acmod);
354  put_bits(&pbc, 1, lfeon);
355  put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
356  put_bits(&pbc, 5, 0); // reserved
357 
358  flush_put_bits(&pbc);
359  avio_write(pb, buf, sizeof(buf));
360 
361  return 11;
362 }
363 
364 struct eac3_info {
368 
369  /* Layout of the EC3SpecificBox */
370  /* maximum bitrate */
371  uint16_t data_rate;
372  /* number of independent substreams */
374  struct {
375  /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
377  /* bit stream identification 5 bits */
379  /* one bit reserved */
380  /* audio service mixing (not supported yet) 1 bit */
381  /* bit stream mode 3 bits */
383  /* audio coding mode 3 bits */
385  /* sub woofer on 1 bit */
387  /* 3 bits reserved */
388  /* number of dependent substreams associated with this substream 4 bits */
390  /* channel locations of the dependent substream(s), if any, 9 bits */
391  uint16_t chan_loc;
392  /* if there is no dependent substream, then one bit reserved instead */
393  } substream[1]; /* TODO: support 8 independent substreams */
394 };
395 
396 #if CONFIG_AC3_PARSER
397 static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
398 {
399  AC3HeaderInfo *hdr = NULL;
400  struct eac3_info *info;
401  int num_blocks, ret;
402 
403  if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
404  return AVERROR(ENOMEM);
405  info = track->eac3_priv;
406 
407  if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) < 0) {
408  /* drop the packets until we see a good one */
409  if (!track->entry) {
410  av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
411  ret = 0;
412  } else
413  ret = AVERROR_INVALIDDATA;
414  goto end;
415  }
416 
417  info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
418  num_blocks = hdr->num_blocks;
419 
420  if (!info->ec3_done) {
421  /* AC-3 substream must be the first one */
422  if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) {
423  ret = AVERROR(EINVAL);
424  goto end;
425  }
426 
427  /* this should always be the case, given that our AC-3 parser
428  * concatenates dependent frames to their independent parent */
430  /* substream ids must be incremental */
431  if (hdr->substreamid > info->num_ind_sub + 1) {
432  ret = AVERROR(EINVAL);
433  goto end;
434  }
435 
436  if (hdr->substreamid == info->num_ind_sub + 1) {
437  //info->num_ind_sub++;
438  avpriv_request_sample(mov->fc, "Multiple independent substreams");
439  ret = AVERROR_PATCHWELCOME;
440  goto end;
441  } else if (hdr->substreamid < info->num_ind_sub ||
442  hdr->substreamid == 0 && info->substream[0].bsid) {
443  info->ec3_done = 1;
444  goto concatenate;
445  }
446  } else {
447  if (hdr->substreamid != 0) {
448  avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams");
449  ret = AVERROR_PATCHWELCOME;
450  goto end;
451  }
452  }
453 
454  /* fill the info needed for the "dec3" atom */
455  info->substream[hdr->substreamid].fscod = hdr->sr_code;
456  info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
457  info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
458  info->substream[hdr->substreamid].acmod = hdr->channel_mode;
459  info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
460 
461  /* Parse dependent substream(s), if any */
462  if (pkt->size != hdr->frame_size) {
463  int cumul_size = hdr->frame_size;
464  int parent = hdr->substreamid;
465 
466  while (cumul_size != pkt->size) {
467  GetBitContext gbc;
468  int i;
469  ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size);
470  if (ret < 0)
471  goto end;
473  ret = AVERROR(EINVAL);
474  goto end;
475  }
476  info->substream[parent].num_dep_sub++;
477  ret /= 8;
478 
479  /* header is parsed up to lfeon, but custom channel map may be needed */
480  init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret);
481  /* skip bsid */
482  skip_bits(&gbc, 5);
483  /* skip volume control params */
484  for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
485  skip_bits(&gbc, 5); // skip dialog normalization
486  if (get_bits1(&gbc)) {
487  skip_bits(&gbc, 8); // skip compression gain word
488  }
489  }
490  /* get the dependent stream channel map, if exists */
491  if (get_bits1(&gbc))
492  info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
493  else
494  info->substream[parent].chan_loc |= hdr->channel_mode;
495  cumul_size += hdr->frame_size;
496  }
497  }
498  }
499 
500 concatenate:
501  if (!info->num_blocks && num_blocks == 6) {
502  ret = pkt->size;
503  goto end;
504  }
505  else if (info->num_blocks + num_blocks > 6) {
506  ret = AVERROR_INVALIDDATA;
507  goto end;
508  }
509 
510  if (!info->num_blocks) {
511  ret = av_packet_ref(&info->pkt, pkt);
512  if (!ret)
513  info->num_blocks = num_blocks;
514  goto end;
515  } else {
516  if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
517  goto end;
518  memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
519  info->num_blocks += num_blocks;
520  info->pkt.duration += pkt->duration;
521  if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
522  goto end;
523  if (info->num_blocks != 6)
524  goto end;
525  av_packet_unref(pkt);
526  av_packet_move_ref(pkt, &info->pkt);
527  info->num_blocks = 0;
528  }
529  ret = pkt->size;
530 
531 end:
532  av_free(hdr);
533 
534  return ret;
535 }
536 #endif
537 
539 {
540  PutBitContext pbc;
541  uint8_t *buf;
542  struct eac3_info *info;
543  int size, i;
544 
545  if (!track->eac3_priv) {
546  av_log(s, AV_LOG_ERROR,
547  "Cannot write moov atom before EAC3 packets parsed.\n");
548  return AVERROR(EINVAL);
549  }
550 
551  info = track->eac3_priv;
552  size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3);
553  buf = av_malloc(size);
554  if (!buf) {
555  return AVERROR(ENOMEM);
556  }
557 
558  init_put_bits(&pbc, buf, size);
559  put_bits(&pbc, 13, info->data_rate);
560  put_bits(&pbc, 3, info->num_ind_sub);
561  for (i = 0; i <= info->num_ind_sub; i++) {
562  put_bits(&pbc, 2, info->substream[i].fscod);
563  put_bits(&pbc, 5, info->substream[i].bsid);
564  put_bits(&pbc, 1, 0); /* reserved */
565  put_bits(&pbc, 1, 0); /* asvc */
566  put_bits(&pbc, 3, info->substream[i].bsmod);
567  put_bits(&pbc, 3, info->substream[i].acmod);
568  put_bits(&pbc, 1, info->substream[i].lfeon);
569  put_bits(&pbc, 5, 0); /* reserved */
570  put_bits(&pbc, 4, info->substream[i].num_dep_sub);
571  if (!info->substream[i].num_dep_sub) {
572  put_bits(&pbc, 1, 0); /* reserved */
573  } else {
574  put_bits(&pbc, 9, info->substream[i].chan_loc);
575  }
576  }
577  flush_put_bits(&pbc);
578  size = put_bits_count(&pbc) >> 3;
579 
580  avio_wb32(pb, size + 8);
581  ffio_wfourcc(pb, "dec3");
582  avio_write(pb, buf, size);
583 
584  av_free(buf);
585 
586  return size;
587 }
588 
589 /**
590  * This function writes extradata "as is".
591  * Extradata must be formatted like a valid atom (with size and tag).
592  */
594 {
595  avio_write(pb, track->par->extradata, track->par->extradata_size);
596  return track->par->extradata_size;
597 }
598 
600 {
601  avio_wb32(pb, 10);
602  ffio_wfourcc(pb, "enda");
603  avio_wb16(pb, 1); /* little endian */
604  return 10;
605 }
606 
608 {
609  avio_wb32(pb, 10);
610  ffio_wfourcc(pb, "enda");
611  avio_wb16(pb, 0); /* big endian */
612  return 10;
613 }
614 
615 static void put_descr(AVIOContext *pb, int tag, unsigned int size)
616 {
617  int i = 3;
618  avio_w8(pb, tag);
619  for (; i > 0; i--)
620  avio_w8(pb, (size >> (7 * i)) | 0x80);
621  avio_w8(pb, size & 0x7F);
622 }
623 
624 static unsigned compute_avg_bitrate(MOVTrack *track)
625 {
626  uint64_t size = 0;
627  int i;
628  if (!track->track_duration)
629  return 0;
630  for (i = 0; i < track->entry; i++)
631  size += track->cluster[i].size;
632  return size * 8 * track->timescale / track->track_duration;
633 }
634 
635 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
636 {
637  AVCPBProperties *props;
638  int64_t pos = avio_tell(pb);
639  int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
640  unsigned avg_bitrate;
641 
642  avio_wb32(pb, 0); // size
643  ffio_wfourcc(pb, "esds");
644  avio_wb32(pb, 0); // Version
645 
646  // ES descriptor
647  put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
648  avio_wb16(pb, track->track_id);
649  avio_w8(pb, 0x00); // flags (= no flags)
650 
651  // DecoderConfig descriptor
652  put_descr(pb, 0x04, 13 + decoder_specific_info_len);
653 
654  // Object type indication
655  if ((track->par->codec_id == AV_CODEC_ID_MP2 ||
656  track->par->codec_id == AV_CODEC_ID_MP3) &&
657  track->par->sample_rate > 24000)
658  avio_w8(pb, 0x6B); // 11172-3
659  else
661 
662  // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
663  // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
664  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
665  avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
666  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
667  avio_w8(pb, 0x15); // flags (= Audiostream)
668  else
669  avio_w8(pb, 0x11); // flags (= Visualstream)
670 
672  NULL);
673 
674  avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
675 
676  avg_bitrate = compute_avg_bitrate(track);
677  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)
678  avio_wb32(pb, avg_bitrate);
679 
680  if (track->vos_len) {
681  // DecoderSpecific info descriptor
682  put_descr(pb, 0x05, track->vos_len);
683  avio_write(pb, track->vos_data, track->vos_len);
684  }
685 
686  // SL descriptor
687  put_descr(pb, 0x06, 1);
688  avio_w8(pb, 0x02);
689  return update_size(pb, pos);
690 }
691 
693 {
694  return codec_id == AV_CODEC_ID_PCM_S24LE ||
695  codec_id == AV_CODEC_ID_PCM_S32LE ||
696  codec_id == AV_CODEC_ID_PCM_F32LE ||
697  codec_id == AV_CODEC_ID_PCM_F64LE;
698 }
699 
701 {
702  return codec_id == AV_CODEC_ID_PCM_S24BE ||
703  codec_id == AV_CODEC_ID_PCM_S32BE ||
704  codec_id == AV_CODEC_ID_PCM_F32BE ||
705  codec_id == AV_CODEC_ID_PCM_F64BE;
706 }
707 
709 {
710  int ret;
711  int64_t pos = avio_tell(pb);
712  avio_wb32(pb, 0);
713  avio_wl32(pb, track->tag); // store it byteswapped
714  track->par->codec_tag = av_bswap16(track->tag >> 16);
715  if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0)
716  return ret;
717  return update_size(pb, pos);
718 }
719 
721 {
722  int ret;
723  int64_t pos = avio_tell(pb);
724  avio_wb32(pb, 0);
725  ffio_wfourcc(pb, "wfex");
726  if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
727  return ret;
728  return update_size(pb, pos);
729 }
730 
731 static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
732 {
733  int64_t pos = avio_tell(pb);
734  avio_wb32(pb, 0);
735  ffio_wfourcc(pb, "dfLa");
736  avio_w8(pb, 0); /* version */
737  avio_wb24(pb, 0); /* flags */
738 
739  /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
740  if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
741  return AVERROR_INVALIDDATA;
742 
743  /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */
744  avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */
745  avio_wb24(pb, track->par->extradata_size); /* Length */
746  avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */
747 
748  return update_size(pb, pos);
749 }
750 
752 {
753  int64_t pos = avio_tell(pb);
754  avio_wb32(pb, 0);
755  ffio_wfourcc(pb, "dOps");
756  avio_w8(pb, 0); /* Version */
757  if (track->par->extradata_size < 19) {
758  av_log(s, AV_LOG_ERROR, "invalid extradata size\n");
759  return AVERROR_INVALIDDATA;
760  }
761  /* extradata contains an Ogg OpusHead, other than byte-ordering and
762  OpusHead's preceeding magic/version, OpusSpecificBox is currently
763  identical. */
764  avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
765  avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
766  avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
767  avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
768  /* Write the rest of the header out without byte-swapping. */
769  avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 18);
770 
771  return update_size(pb, pos);
772 }
773 
775 {
776  uint32_t layout_tag, bitmap;
777  int64_t pos = avio_tell(pb);
778 
779  layout_tag = ff_mov_get_channel_layout_tag(track->par->codec_id,
780  track->par->channel_layout,
781  &bitmap);
782  if (!layout_tag) {
783  av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to "
784  "lack of channel information\n");
785  return 0;
786  }
787 
788  if (track->multichannel_as_mono)
789  return 0;
790 
791  avio_wb32(pb, 0); // Size
792  ffio_wfourcc(pb, "chan"); // Type
793  avio_w8(pb, 0); // Version
794  avio_wb24(pb, 0); // Flags
795  avio_wb32(pb, layout_tag); // mChannelLayoutTag
796  avio_wb32(pb, bitmap); // mChannelBitmap
797  avio_wb32(pb, 0); // mNumberChannelDescriptions
798 
799  return update_size(pb, pos);
800 }
801 
803 {
804  int64_t pos = avio_tell(pb);
805 
806  avio_wb32(pb, 0); /* size */
807  ffio_wfourcc(pb, "wave");
808 
809  if (track->par->codec_id != AV_CODEC_ID_QDM2) {
810  avio_wb32(pb, 12); /* size */
811  ffio_wfourcc(pb, "frma");
812  avio_wl32(pb, track->tag);
813  }
814 
815  if (track->par->codec_id == AV_CODEC_ID_AAC) {
816  /* useless atom needed by mplayer, ipod, not needed by quicktime */
817  avio_wb32(pb, 12); /* size */
818  ffio_wfourcc(pb, "mp4a");
819  avio_wb32(pb, 0);
820  mov_write_esds_tag(pb, track);
821  } else if (mov_pcm_le_gt16(track->par->codec_id)) {
822  mov_write_enda_tag(pb);
823  } else if (mov_pcm_be_gt16(track->par->codec_id)) {
825  } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) {
826  mov_write_amr_tag(pb, track);
827  } else if (track->par->codec_id == AV_CODEC_ID_AC3) {
828  mov_write_ac3_tag(s, pb, track);
829  } else if (track->par->codec_id == AV_CODEC_ID_EAC3) {
830  mov_write_eac3_tag(s, pb, track);
831  } else if (track->par->codec_id == AV_CODEC_ID_ALAC ||
832  track->par->codec_id == AV_CODEC_ID_QDM2) {
833  mov_write_extradata_tag(pb, track);
834  } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
836  mov_write_ms_tag(s, pb, track);
837  }
838 
839  avio_wb32(pb, 8); /* size */
840  avio_wb32(pb, 0); /* null tag */
841 
842  return update_size(pb, pos);
843 }
844 
846 {
847  uint8_t *unescaped;
848  const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
849  int unescaped_size, seq_found = 0;
850  int level = 0, interlace = 0;
851  int packet_seq = track->vc1_info.packet_seq;
852  int packet_entry = track->vc1_info.packet_entry;
853  int slices = track->vc1_info.slices;
854  PutBitContext pbc;
855 
856  if (track->start_dts == AV_NOPTS_VALUE) {
857  /* No packets written yet, vc1_info isn't authoritative yet. */
858  /* Assume inline sequence and entry headers. */
859  packet_seq = packet_entry = 1;
861  "moov atom written before any packets, unable to write correct "
862  "dvc1 atom. Set the delay_moov flag to fix this.\n");
863  }
864 
865  unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
866  if (!unescaped)
867  return AVERROR(ENOMEM);
868  start = find_next_marker(track->vos_data, end);
869  for (next = start; next < end; start = next) {
870  GetBitContext gb;
871  int size;
872  next = find_next_marker(start + 4, end);
873  size = next - start - 4;
874  if (size <= 0)
875  continue;
876  unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
877  init_get_bits(&gb, unescaped, 8 * unescaped_size);
878  if (AV_RB32(start) == VC1_CODE_SEQHDR) {
879  int profile = get_bits(&gb, 2);
880  if (profile != PROFILE_ADVANCED) {
881  av_free(unescaped);
882  return AVERROR(ENOSYS);
883  }
884  seq_found = 1;
885  level = get_bits(&gb, 3);
886  /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
887  * width, height */
888  skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
889  skip_bits(&gb, 1); /* broadcast */
890  interlace = get_bits1(&gb);
891  skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
892  }
893  }
894  if (!seq_found) {
895  av_free(unescaped);
896  return AVERROR(ENOSYS);
897  }
898 
899  init_put_bits(&pbc, buf, 7);
900  /* VC1DecSpecStruc */
901  put_bits(&pbc, 4, 12); /* profile - advanced */
902  put_bits(&pbc, 3, level);
903  put_bits(&pbc, 1, 0); /* reserved */
904  /* VC1AdvDecSpecStruc */
905  put_bits(&pbc, 3, level);
906  put_bits(&pbc, 1, 0); /* cbr */
907  put_bits(&pbc, 6, 0); /* reserved */
908  put_bits(&pbc, 1, !interlace); /* no interlace */
909  put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
910  put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
911  put_bits(&pbc, 1, !slices); /* no slice code */
912  put_bits(&pbc, 1, 0); /* no bframe */
913  put_bits(&pbc, 1, 0); /* reserved */
914 
915  /* framerate */
916  if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
917  put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
918  else
919  put_bits32(&pbc, 0xffffffff);
920 
921  flush_put_bits(&pbc);
922 
923  av_free(unescaped);
924 
925  return 0;
926 }
927 
928 static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
929 {
930  uint8_t buf[7] = { 0 };
931  int ret;
932 
933  if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
934  return ret;
935 
936  avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
937  ffio_wfourcc(pb, "dvc1");
938  avio_write(pb, buf, sizeof(buf));
939  avio_write(pb, track->vos_data, track->vos_len);
940 
941  return 0;
942 }
943 
944 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
945 {
946  avio_wb32(pb, track->vos_len + 8);
947  ffio_wfourcc(pb, "glbl");
948  avio_write(pb, track->vos_data, track->vos_len);
949  return 8 + track->vos_len;
950 }
951 
952 /**
953  * Compute flags for 'lpcm' tag.
954  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
955  */
957 {
958  switch (codec_id) {
961  return 11;
964  return 9;
965  case AV_CODEC_ID_PCM_U8:
966  return 10;
970  return 14;
971  case AV_CODEC_ID_PCM_S8:
975  return 12;
976  default:
977  return 0;
978  }
979 }
980 
981 static int get_cluster_duration(MOVTrack *track, int cluster_idx)
982 {
983  int64_t next_dts;
984 
985  if (cluster_idx >= track->entry)
986  return 0;
987 
988  if (cluster_idx + 1 == track->entry)
989  next_dts = track->track_duration + track->start_dts;
990  else
991  next_dts = track->cluster[cluster_idx + 1].dts;
992 
993  next_dts -= track->cluster[cluster_idx].dts;
994 
995  av_assert0(next_dts >= 0);
996  av_assert0(next_dts <= INT_MAX);
997 
998  return next_dts;
999 }
1000 
1002 {
1003  int i, first_duration;
1004 
1005 // return track->par->frame_size;
1006 
1007  /* use 1 for raw PCM */
1008  if (!track->audio_vbr)
1009  return 1;
1010 
1011  /* check to see if duration is constant for all clusters */
1012  if (!track->entry)
1013  return 0;
1014  first_duration = get_cluster_duration(track, 0);
1015  for (i = 1; i < track->entry; i++) {
1016  if (get_cluster_duration(track, i) != first_duration)
1017  return 0;
1018  }
1019  return first_duration;
1020 }
1021 
1023 {
1024  int64_t pos = avio_tell(pb);
1025  int version = 0;
1026  uint32_t tag = track->tag;
1027  int ret = 0;
1028 
1029  if (track->mode == MODE_MOV) {
1030  if (track->timescale > UINT16_MAX || !track->par->channels) {
1031  if (mov_get_lpcm_flags(track->par->codec_id))
1032  tag = AV_RL32("lpcm");
1033  version = 2;
1034  } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) ||
1035  mov_pcm_be_gt16(track->par->codec_id) ||
1036  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1037  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1038  track->par->codec_id == AV_CODEC_ID_QDM2) {
1039  version = 1;
1040  }
1041  }
1042 
1043  avio_wb32(pb, 0); /* size */
1044  if (mov->encryption_scheme != MOV_ENC_NONE) {
1045  ffio_wfourcc(pb, "enca");
1046  } else {
1047  avio_wl32(pb, tag); // store it byteswapped
1048  }
1049  avio_wb32(pb, 0); /* Reserved */
1050  avio_wb16(pb, 0); /* Reserved */
1051  avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
1052 
1053  /* SoundDescription */
1054  avio_wb16(pb, version); /* Version */
1055  avio_wb16(pb, 0); /* Revision level */
1056  avio_wb32(pb, 0); /* Reserved */
1057 
1058  if (version == 2) {
1059  avio_wb16(pb, 3);
1060  avio_wb16(pb, 16);
1061  avio_wb16(pb, 0xfffe);
1062  avio_wb16(pb, 0);
1063  avio_wb32(pb, 0x00010000);
1064  avio_wb32(pb, 72);
1065  avio_wb64(pb, av_double2int(track->par->sample_rate));
1066  avio_wb32(pb, track->par->channels);
1067  avio_wb32(pb, 0x7F000000);
1069  avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id));
1070  avio_wb32(pb, track->sample_size);
1071  avio_wb32(pb, get_samples_per_packet(track));
1072  } else {
1073  if (track->mode == MODE_MOV) {
1074  avio_wb16(pb, track->par->channels);
1075  if (track->par->codec_id == AV_CODEC_ID_PCM_U8 ||
1076  track->par->codec_id == AV_CODEC_ID_PCM_S8)
1077  avio_wb16(pb, 8); /* bits per sample */
1078  else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726)
1079  avio_wb16(pb, track->par->bits_per_coded_sample);
1080  else
1081  avio_wb16(pb, 16);
1082  avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
1083  } else { /* reserved for mp4/3gp */
1084  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1085  track->par->codec_id == AV_CODEC_ID_ALAC ||
1086  track->par->codec_id == AV_CODEC_ID_OPUS) {
1087  avio_wb16(pb, track->par->channels);
1088  } else {
1089  avio_wb16(pb, 2);
1090  }
1091  if (track->par->codec_id == AV_CODEC_ID_FLAC ||
1092  track->par->codec_id == AV_CODEC_ID_ALAC) {
1093  avio_wb16(pb, track->par->bits_per_raw_sample);
1094  } else {
1095  avio_wb16(pb, 16);
1096  }
1097  avio_wb16(pb, 0);
1098  }
1099 
1100  avio_wb16(pb, 0); /* packet size (= 0) */
1101  if (track->par->codec_id == AV_CODEC_ID_OPUS)
1102  avio_wb16(pb, 48000);
1103  else
1104  avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
1105  track->par->sample_rate : 0);
1106  avio_wb16(pb, 0); /* Reserved */
1107  }
1108 
1109  if (version == 1) { /* SoundDescription V1 extended info */
1110  if (mov_pcm_le_gt16(track->par->codec_id) ||
1111  mov_pcm_be_gt16(track->par->codec_id))
1112  avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
1113  else
1114  avio_wb32(pb, track->par->frame_size); /* Samples per packet */
1115  avio_wb32(pb, track->sample_size / track->par->channels); /* Bytes per packet */
1116  avio_wb32(pb, track->sample_size); /* Bytes per frame */
1117  avio_wb32(pb, 2); /* Bytes per sample */
1118  }
1119 
1120  if (track->mode == MODE_MOV &&
1121  (track->par->codec_id == AV_CODEC_ID_AAC ||
1122  track->par->codec_id == AV_CODEC_ID_AC3 ||
1123  track->par->codec_id == AV_CODEC_ID_EAC3 ||
1124  track->par->codec_id == AV_CODEC_ID_AMR_NB ||
1125  track->par->codec_id == AV_CODEC_ID_ALAC ||
1126  track->par->codec_id == AV_CODEC_ID_ADPCM_MS ||
1127  track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
1128  track->par->codec_id == AV_CODEC_ID_QDM2 ||
1129  (mov_pcm_le_gt16(track->par->codec_id) && version==1) ||
1130  (mov_pcm_be_gt16(track->par->codec_id) && version==1)))
1131  ret = mov_write_wave_tag(s, pb, track);
1132  else if (track->tag == MKTAG('m','p','4','a'))
1133  ret = mov_write_esds_tag(pb, track);
1134  else if (track->par->codec_id == AV_CODEC_ID_AMR_NB)
1135  ret = mov_write_amr_tag(pb, track);
1136  else if (track->par->codec_id == AV_CODEC_ID_AC3)
1137  ret = mov_write_ac3_tag(s, pb, track);
1138  else if (track->par->codec_id == AV_CODEC_ID_EAC3)
1139  ret = mov_write_eac3_tag(s, pb, track);
1140  else if (track->par->codec_id == AV_CODEC_ID_ALAC)
1141  ret = mov_write_extradata_tag(pb, track);
1142  else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
1143  ret = mov_write_wfex_tag(s, pb, track);
1144  else if (track->par->codec_id == AV_CODEC_ID_FLAC)
1145  ret = mov_write_dfla_tag(pb, track);
1146  else if (track->par->codec_id == AV_CODEC_ID_OPUS)
1147  ret = mov_write_dops_tag(s, pb, track);
1148  else if (track->vos_len > 0)
1149  ret = mov_write_glbl_tag(pb, track);
1150 
1151  if (ret < 0)
1152  return ret;
1153 
1154  if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO
1155  && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) {
1156  return ret;
1157  }
1158 
1159  if (mov->encryption_scheme != MOV_ENC_NONE
1160  && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) {
1161  return ret;
1162  }
1163 
1164  ret = update_size(pb, pos);
1165  return ret;
1166 }
1167 
1169 {
1170  avio_wb32(pb, 0xf); /* size */
1171  ffio_wfourcc(pb, "d263");
1172  ffio_wfourcc(pb, "FFMP");
1173  avio_w8(pb, 0); /* decoder version */
1174  /* FIXME use AVCodecContext level/profile, when encoder will set values */
1175  avio_w8(pb, 0xa); /* level */
1176  avio_w8(pb, 0); /* profile */
1177  return 0xf;
1178 }
1179 
1180 static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track)
1181 {
1182  int64_t pos = avio_tell(pb);
1183 
1184  avio_wb32(pb, 0);
1185  ffio_wfourcc(pb, "av1C");
1186  ff_isom_write_av1c(pb, track->vos_data, track->vos_len);
1187  return update_size(pb, pos);
1188 }
1189 
1190 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
1191 {
1192  int64_t pos = avio_tell(pb);
1193 
1194  avio_wb32(pb, 0);
1195  ffio_wfourcc(pb, "avcC");
1196  ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
1197  return update_size(pb, pos);
1198 }
1199 
1201 {
1202  int64_t pos = avio_tell(pb);
1203 
1204  avio_wb32(pb, 0);
1205  ffio_wfourcc(pb, "vpcC");
1206  avio_w8(pb, 1); /* version */
1207  avio_wb24(pb, 0); /* flags */
1208  ff_isom_write_vpcc(s, pb, track->par);
1209  return update_size(pb, pos);
1210 }
1211 
1212 static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
1213 {
1214  int64_t pos = avio_tell(pb);
1215 
1216  avio_wb32(pb, 0);
1217  ffio_wfourcc(pb, "hvcC");
1218  if (track->tag == MKTAG('h','v','c','1'))
1219  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1);
1220  else
1221  ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
1222  return update_size(pb, pos);
1223 }
1224 
1225 /* also used by all avid codecs (dv, imx, meridien) and their variants */
1226 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
1227 {
1228  int i;
1229  int interlaced;
1230  int cid;
1231  int display_width = track->par->width;
1232 
1233  if (track->vos_data && track->vos_len > 0x29) {
1234  if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) {
1235  /* looks like a DNxHD bit stream */
1236  interlaced = (track->vos_data[5] & 2);
1237  cid = AV_RB32(track->vos_data + 0x28);
1238  } else {
1239  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
1240  return 0;
1241  }
1242  } else {
1243  av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
1244  return 0;
1245  }
1246 
1247  avio_wb32(pb, 24); /* size */
1248  ffio_wfourcc(pb, "ACLR");
1249  ffio_wfourcc(pb, "ACLR");
1250  ffio_wfourcc(pb, "0001");
1251  if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
1253  avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
1254  } else { /* Full range (0-255) */
1255  avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
1256  }
1257  avio_wb32(pb, 0); /* unknown */
1258 
1259  if (track->tag == MKTAG('A','V','d','h')) {
1260  avio_wb32(pb, 32);
1261  ffio_wfourcc(pb, "ADHR");
1262  ffio_wfourcc(pb, "0001");
1263  avio_wb32(pb, cid);
1264  avio_wb32(pb, 0); /* unknown */
1265  avio_wb32(pb, 1); /* unknown */
1266  avio_wb32(pb, 0); /* unknown */
1267  avio_wb32(pb, 0); /* unknown */
1268  return 0;
1269  }
1270 
1271  avio_wb32(pb, 24); /* size */
1272  ffio_wfourcc(pb, "APRG");
1273  ffio_wfourcc(pb, "APRG");
1274  ffio_wfourcc(pb, "0001");
1275  avio_wb32(pb, 1); /* unknown */
1276  avio_wb32(pb, 0); /* unknown */
1277 
1278  avio_wb32(pb, 120); /* size */
1279  ffio_wfourcc(pb, "ARES");
1280  ffio_wfourcc(pb, "ARES");
1281  ffio_wfourcc(pb, "0001");
1282  avio_wb32(pb, cid); /* dnxhd cid, some id ? */
1283  if ( track->par->sample_aspect_ratio.num > 0
1284  && track->par->sample_aspect_ratio.den > 0)
1285  display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den;
1286  avio_wb32(pb, display_width);
1287  /* values below are based on samples created with quicktime and avid codecs */
1288  if (interlaced) {
1289  avio_wb32(pb, track->par->height / 2);
1290  avio_wb32(pb, 2); /* unknown */
1291  avio_wb32(pb, 0); /* unknown */
1292  avio_wb32(pb, 4); /* unknown */
1293  } else {
1294  avio_wb32(pb, track->par->height);
1295  avio_wb32(pb, 1); /* unknown */
1296  avio_wb32(pb, 0); /* unknown */
1297  if (track->par->height == 1080)
1298  avio_wb32(pb, 5); /* unknown */
1299  else
1300  avio_wb32(pb, 6); /* unknown */
1301  }
1302  /* padding */
1303  for (i = 0; i < 10; i++)
1304  avio_wb64(pb, 0);
1305 
1306  return 0;
1307 }
1308 
1309 static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
1310 {
1311  avio_wb32(pb, 12);
1312  ffio_wfourcc(pb, "DpxE");
1313  if (track->par->extradata_size >= 12 &&
1314  !memcmp(&track->par->extradata[4], "DpxE", 4)) {
1315  avio_wb32(pb, track->par->extradata[11]);
1316  } else {
1317  avio_wb32(pb, 1);
1318  }
1319  return 0;
1320 }
1321 
1323 {
1324  int tag;
1325 
1326  if (track->par->width == 720) { /* SD */
1327  if (track->par->height == 480) { /* NTSC */
1328  if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
1329  else tag = MKTAG('d','v','c',' ');
1330  }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
1331  else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
1332  else tag = MKTAG('d','v','p','p');
1333  } else if (track->par->height == 720) { /* HD 720 line */
1334  if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
1335  else tag = MKTAG('d','v','h','p');
1336  } else if (track->par->height == 1080) { /* HD 1080 line */
1337  if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
1338  else tag = MKTAG('d','v','h','6');
1339  } else {
1340  av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
1341  return 0;
1342  }
1343 
1344  return tag;
1345 }
1346 
1348 {
1349  AVRational rate = st->avg_frame_rate;
1350 
1351 #if FF_API_LAVF_AVCTX
1353  rate = av_inv_q(st->codec->time_base);
1354  if (av_timecode_check_frame_rate(rate) < 0) {
1355  av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
1356  rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
1357  rate = st->avg_frame_rate;
1358  }
1360 #endif
1361 
1362  return rate;
1363 }
1364 
1366 {
1367  AVRational rational_framerate = find_fps(s, st);
1368  int rate = 0;
1369  if (rational_framerate.den != 0)
1370  rate = av_q2d(rational_framerate);
1371  return rate;
1372 }
1373 
1375 {
1376  int tag = track->par->codec_tag;
1378  AVStream *st = track->st;
1379  int rate = defined_frame_rate(s, st);
1380 
1381  if (!tag)
1382  tag = MKTAG('m', '2', 'v', '1'); //fallback tag
1383 
1384  if (track->par->format == AV_PIX_FMT_YUV420P) {
1385  if (track->par->width == 1280 && track->par->height == 720) {
1386  if (!interlaced) {
1387  if (rate == 24) tag = MKTAG('x','d','v','4');
1388  else if (rate == 25) tag = MKTAG('x','d','v','5');
1389  else if (rate == 30) tag = MKTAG('x','d','v','1');
1390  else if (rate == 50) tag = MKTAG('x','d','v','a');
1391  else if (rate == 60) tag = MKTAG('x','d','v','9');
1392  }
1393  } else if (track->par->width == 1440 && track->par->height == 1080) {
1394  if (!interlaced) {
1395  if (rate == 24) tag = MKTAG('x','d','v','6');
1396  else if (rate == 25) tag = MKTAG('x','d','v','7');
1397  else if (rate == 30) tag = MKTAG('x','d','v','8');
1398  } else {
1399  if (rate == 25) tag = MKTAG('x','d','v','3');
1400  else if (rate == 30) tag = MKTAG('x','d','v','2');
1401  }
1402  } else if (track->par->width == 1920 && track->par->height == 1080) {
1403  if (!interlaced) {
1404  if (rate == 24) tag = MKTAG('x','d','v','d');
1405  else if (rate == 25) tag = MKTAG('x','d','v','e');
1406  else if (rate == 30) tag = MKTAG('x','d','v','f');
1407  } else {
1408  if (rate == 25) tag = MKTAG('x','d','v','c');
1409  else if (rate == 30) tag = MKTAG('x','d','v','b');
1410  }
1411  }
1412  } else if (track->par->format == AV_PIX_FMT_YUV422P) {
1413  if (track->par->width == 1280 && track->par->height == 720) {
1414  if (!interlaced) {
1415  if (rate == 24) tag = MKTAG('x','d','5','4');
1416  else if (rate == 25) tag = MKTAG('x','d','5','5');
1417  else if (rate == 30) tag = MKTAG('x','d','5','1');
1418  else if (rate == 50) tag = MKTAG('x','d','5','a');
1419  else if (rate == 60) tag = MKTAG('x','d','5','9');
1420  }
1421  } else if (track->par->width == 1920 && track->par->height == 1080) {
1422  if (!interlaced) {
1423  if (rate == 24) tag = MKTAG('x','d','5','d');
1424  else if (rate == 25) tag = MKTAG('x','d','5','e');
1425  else if (rate == 30) tag = MKTAG('x','d','5','f');
1426  } else {
1427  if (rate == 25) tag = MKTAG('x','d','5','c');
1428  else if (rate == 30) tag = MKTAG('x','d','5','b');
1429  }
1430  }
1431  }
1432 
1433  return tag;
1434 }
1435 
1437 {
1438  int tag = track->par->codec_tag;
1440  AVStream *st = track->st;
1441  int rate = defined_frame_rate(s, st);
1442 
1443  if (!tag)
1444  tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
1445 
1446  if (track->par->format == AV_PIX_FMT_YUV420P10) {
1447  if (track->par->width == 960 && track->par->height == 720) {
1448  if (!interlaced) {
1449  if (rate == 24) tag = MKTAG('a','i','5','p');
1450  else if (rate == 25) tag = MKTAG('a','i','5','q');
1451  else if (rate == 30) tag = MKTAG('a','i','5','p');
1452  else if (rate == 50) tag = MKTAG('a','i','5','q');
1453  else if (rate == 60) tag = MKTAG('a','i','5','p');
1454  }
1455  } else if (track->par->width == 1440 && track->par->height == 1080) {
1456  if (!interlaced) {
1457  if (rate == 24) tag = MKTAG('a','i','5','3');
1458  else if (rate == 25) tag = MKTAG('a','i','5','2');
1459  else if (rate == 30) tag = MKTAG('a','i','5','3');
1460  } else {
1461  if (rate == 50) tag = MKTAG('a','i','5','5');
1462  else if (rate == 60) tag = MKTAG('a','i','5','6');
1463  }
1464  }
1465  } else if (track->par->format == AV_PIX_FMT_YUV422P10) {
1466  if (track->par->width == 1280 && track->par->height == 720) {
1467  if (!interlaced) {
1468  if (rate == 24) tag = MKTAG('a','i','1','p');
1469  else if (rate == 25) tag = MKTAG('a','i','1','q');
1470  else if (rate == 30) tag = MKTAG('a','i','1','p');
1471  else if (rate == 50) tag = MKTAG('a','i','1','q');
1472  else if (rate == 60) tag = MKTAG('a','i','1','p');
1473  }
1474  } else if (track->par->width == 1920 && track->par->height == 1080) {
1475  if (!interlaced) {
1476  if (rate == 24) tag = MKTAG('a','i','1','3');
1477  else if (rate == 25) tag = MKTAG('a','i','1','2');
1478  else if (rate == 30) tag = MKTAG('a','i','1','3');
1479  } else {
1480  if (rate == 25) tag = MKTAG('a','i','1','5');
1481  else if (rate == 50) tag = MKTAG('a','i','1','5');
1482  else if (rate == 60) tag = MKTAG('a','i','1','6');
1483  }
1484  } else if ( track->par->width == 4096 && track->par->height == 2160
1485  || track->par->width == 3840 && track->par->height == 2160
1486  || track->par->width == 2048 && track->par->height == 1080) {
1487  tag = MKTAG('a','i','v','x');
1488  }
1489  }
1490 
1491  return tag;
1492 }
1493 
1494 static const struct {
1496  uint32_t tag;
1497  unsigned bps;
1498 } mov_pix_fmt_tags[] = {
1499  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
1500  { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
1501  { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
1502  { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
1503  { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
1504  { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
1505  { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
1506  { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
1507  { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
1508  { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
1509  { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
1510  { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
1511  { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
1512  { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
1513  { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
1514 };
1515 
1517 {
1518  int tag = MKTAG('A','V','d','n');
1519  if (track->par->profile != FF_PROFILE_UNKNOWN &&
1520  track->par->profile != FF_PROFILE_DNXHD)
1521  tag = MKTAG('A','V','d','h');
1522  return tag;
1523 }
1524 
1526 {
1527  int tag = track->par->codec_tag;
1528  int i;
1529  enum AVPixelFormat pix_fmt;
1530 
1531  for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
1532  if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) {
1533  tag = mov_pix_fmt_tags[i].tag;
1535  if (track->par->codec_tag == mov_pix_fmt_tags[i].tag)
1536  break;
1537  }
1538  }
1539 
1541  track->par->bits_per_coded_sample);
1542  if (tag == MKTAG('r','a','w',' ') &&
1543  track->par->format != pix_fmt &&
1544  track->par->format != AV_PIX_FMT_GRAY8 &&
1545  track->par->format != AV_PIX_FMT_NONE)
1546  av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
1547  av_get_pix_fmt_name(track->par->format));
1548  return tag;
1549 }
1550 
1551 static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
1552 {
1553  unsigned int tag = track->par->codec_tag;
1554 
1555  if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
1556  (track->par->codec_id == AV_CODEC_ID_DVVIDEO ||
1557  track->par->codec_id == AV_CODEC_ID_RAWVIDEO ||
1558  track->par->codec_id == AV_CODEC_ID_H263 ||
1559  track->par->codec_id == AV_CODEC_ID_H264 ||
1560  track->par->codec_id == AV_CODEC_ID_DNXHD ||
1561  track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
1562  av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio
1563  if (track->par->codec_id == AV_CODEC_ID_DVVIDEO)
1564  tag = mov_get_dv_codec_tag(s, track);
1565  else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO)
1566  tag = mov_get_rawvideo_codec_tag(s, track);
1567  else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO)
1568  tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
1569  else if (track->par->codec_id == AV_CODEC_ID_H264)
1570  tag = mov_get_h264_codec_tag(s, track);
1571  else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
1572  tag = mov_get_dnxhd_codec_tag(s, track);
1573  else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
1575  if (!tag) { // if no mac fcc found, try with Microsoft tags
1577  if (tag)
1578  av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
1579  "the file may be unplayable!\n");
1580  }
1581  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
1583  if (!tag) { // if no mac fcc found, try with Microsoft tags
1584  int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id);
1585  if (ms_tag) {
1586  tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
1587  av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
1588  "the file may be unplayable!\n");
1589  }
1590  }
1591  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
1593  }
1594 
1595  return tag;
1596 }
1597 
1599  { AV_CODEC_ID_MJPEG, 0xD },
1600  { AV_CODEC_ID_PNG, 0xE },
1601  { AV_CODEC_ID_BMP, 0x1B },
1602  { AV_CODEC_ID_NONE, 0 },
1603 };
1604 
1605 static unsigned int validate_codec_tag(const AVCodecTag *const *tags,
1606  unsigned int tag, int codec_id)
1607 {
1608  int i;
1609 
1610  /**
1611  * Check that tag + id is in the table
1612  */
1613  for (i = 0; tags && tags[i]; i++) {
1614  const AVCodecTag *codec_tags = tags[i];
1615  while (codec_tags->id != AV_CODEC_ID_NONE) {
1616  if (avpriv_toupper4(codec_tags->tag) == avpriv_toupper4(tag) &&
1617  codec_tags->id == codec_id)
1618  return codec_tags->tag;
1619  codec_tags++;
1620  }
1621  }
1622  return 0;
1623 }
1624 
1625 static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
1626 {
1627  if (is_cover_image(track->st))
1628  return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id);
1629 
1630  if (track->mode == MODE_IPOD)
1631  if (!av_match_ext(s->url, "m4a") &&
1632  !av_match_ext(s->url, "m4v") &&
1633  !av_match_ext(s->url, "m4b"))
1634  av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
1635  "Quicktime/Ipod might not play the file\n");
1636 
1637  if (track->mode == MODE_MOV) {
1638  return mov_get_codec_tag(s, track);
1639  } else
1640  return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag,
1641  track->par->codec_id);
1642 }
1643 
1644 /** Write uuid atom.
1645  * Needed to make file play in iPods running newest firmware
1646  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
1647  */
1649 {
1650  avio_wb32(pb, 28);
1651  ffio_wfourcc(pb, "uuid");
1652  avio_wb32(pb, 0x6b6840f2);
1653  avio_wb32(pb, 0x5f244fc5);
1654  avio_wb32(pb, 0xba39a51b);
1655  avio_wb32(pb, 0xcf0323f3);
1656  avio_wb32(pb, 0x0);
1657  return 28;
1658 }
1659 
1660 static const uint16_t fiel_data[] = {
1661  0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
1662 };
1663 
1664 static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order)
1665 {
1666  unsigned mov_field_order = 0;
1667  if (field_order < FF_ARRAY_ELEMS(fiel_data))
1668  mov_field_order = fiel_data[field_order];
1669  else
1670  return 0;
1671  avio_wb32(pb, 10);
1672  ffio_wfourcc(pb, "fiel");
1673  avio_wb16(pb, mov_field_order);
1674  return 10;
1675 }
1676 
1678 {
1679  int64_t pos = avio_tell(pb);
1680  avio_wb32(pb, 0); /* size */
1681  avio_wl32(pb, track->tag); // store it byteswapped
1682  avio_wb32(pb, 0); /* Reserved */
1683  avio_wb16(pb, 0); /* Reserved */
1684  avio_wb16(pb, 1); /* Data-reference index */
1685 
1686  if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
1687  mov_write_esds_tag(pb, track);
1688  else if (track->par->extradata_size)
1689  avio_write(pb, track->par->extradata, track->par->extradata_size);
1690 
1691  return update_size(pb, pos);
1692 }
1693 
1695 {
1696  int8_t stereo_mode;
1697 
1698  if (stereo_3d->flags != 0) {
1699  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags);
1700  return 0;
1701  }
1702 
1703  switch (stereo_3d->type) {
1704  case AV_STEREO3D_2D:
1705  stereo_mode = 0;
1706  break;
1707  case AV_STEREO3D_TOPBOTTOM:
1708  stereo_mode = 1;
1709  break;
1711  stereo_mode = 2;
1712  break;
1713  default:
1714  av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type));
1715  return 0;
1716  }
1717  avio_wb32(pb, 13); /* size */
1718  ffio_wfourcc(pb, "st3d");
1719  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1720  avio_w8(pb, stereo_mode);
1721  return 13;
1722 }
1723 
1725 {
1726  int64_t sv3d_pos, svhd_pos, proj_pos;
1727  const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT;
1728 
1729  if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR &&
1730  spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
1731  spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) {
1732  av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection);
1733  return 0;
1734  }
1735 
1736  sv3d_pos = avio_tell(pb);
1737  avio_wb32(pb, 0); /* size */
1738  ffio_wfourcc(pb, "sv3d");
1739 
1740  svhd_pos = avio_tell(pb);
1741  avio_wb32(pb, 0); /* size */
1742  ffio_wfourcc(pb, "svhd");
1743  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1744  avio_put_str(pb, metadata_source);
1745  update_size(pb, svhd_pos);
1746 
1747  proj_pos = avio_tell(pb);
1748  avio_wb32(pb, 0); /* size */
1749  ffio_wfourcc(pb, "proj");
1750 
1751  avio_wb32(pb, 24); /* size */
1752  ffio_wfourcc(pb, "prhd");
1753  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1754  avio_wb32(pb, spherical_mapping->yaw);
1755  avio_wb32(pb, spherical_mapping->pitch);
1756  avio_wb32(pb, spherical_mapping->roll);
1757 
1758  switch (spherical_mapping->projection) {
1761  avio_wb32(pb, 28); /* size */
1762  ffio_wfourcc(pb, "equi");
1763  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1764  avio_wb32(pb, spherical_mapping->bound_top);
1765  avio_wb32(pb, spherical_mapping->bound_bottom);
1766  avio_wb32(pb, spherical_mapping->bound_left);
1767  avio_wb32(pb, spherical_mapping->bound_right);
1768  break;
1769  case AV_SPHERICAL_CUBEMAP:
1770  avio_wb32(pb, 20); /* size */
1771  ffio_wfourcc(pb, "cbmp");
1772  avio_wb32(pb, 0); /* version = 0 & flags = 0 */
1773  avio_wb32(pb, 0); /* layout */
1774  avio_wb32(pb, spherical_mapping->padding); /* padding */
1775  break;
1776  }
1777  update_size(pb, proj_pos);
1778 
1779  return update_size(pb, sv3d_pos);
1780 }
1781 
1782 static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
1783 {
1784  avio_wb32(pb, 40);
1785  ffio_wfourcc(pb, "clap");
1786  avio_wb32(pb, track->par->width); /* apertureWidth_N */
1787  avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
1788  avio_wb32(pb, track->height); /* apertureHeight_N */
1789  avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
1790  avio_wb32(pb, 0); /* horizOff_N (= 0) */
1791  avio_wb32(pb, 1); /* horizOff_D (= 1) */
1792  avio_wb32(pb, 0); /* vertOff_N (= 0) */
1793  avio_wb32(pb, 1); /* vertOff_D (= 1) */
1794  return 40;
1795 }
1796 
1797 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
1798 {
1799  AVRational sar;
1800  av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num,
1801  track->par->sample_aspect_ratio.den, INT_MAX);
1802 
1803  avio_wb32(pb, 16);
1804  ffio_wfourcc(pb, "pasp");
1805  avio_wb32(pb, sar.num);
1806  avio_wb32(pb, sar.den);
1807  return 16;
1808 }
1809 
1810 static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma)
1811 {
1812  uint32_t gama = 0;
1813  if (gamma <= 0.0) {
1814  gamma = avpriv_get_gamma_from_trc(track->par->color_trc);
1815  }
1816  av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma);
1817 
1818  if (gamma > 1e-6) {
1819  gama = (uint32_t)lrint((double)(1<<16) * gamma);
1820  av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama);
1821 
1822  av_assert0(track->mode == MODE_MOV);
1823  avio_wb32(pb, 12);
1824  ffio_wfourcc(pb, "gama");
1825  avio_wb32(pb, gama);
1826  return 12;
1827  } else {
1828  av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
1829  }
1830  return 0;
1831 }
1832 
1833 static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
1834 {
1835  // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
1836  // Ref (MP4): ISO/IEC 14496-12:2012
1837 
1838  if (track->par->color_primaries == AVCOL_PRI_UNSPECIFIED &&
1839  track->par->color_trc == AVCOL_TRC_UNSPECIFIED &&
1840  track->par->color_space == AVCOL_SPC_UNSPECIFIED) {
1841  if ((track->par->width >= 1920 && track->par->height >= 1080)
1842  || (track->par->width == 1280 && track->par->height == 720)) {
1843  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
1845  } else if (track->par->width == 720 && track->height == 576) {
1846  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
1848  } else if (track->par->width == 720 &&
1849  (track->height == 486 || track->height == 480)) {
1850  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
1852  } else {
1853  av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
1854  }
1855  switch (track->par->color_primaries) {
1856  case AVCOL_PRI_BT709:
1857  track->par->color_trc = AVCOL_TRC_BT709;
1858  track->par->color_space = AVCOL_SPC_BT709;
1859  break;
1860  case AVCOL_PRI_SMPTE170M:
1861  case AVCOL_PRI_BT470BG:
1862  track->par->color_trc = AVCOL_TRC_BT709;
1864  break;
1865  }
1866  }
1867 
1868  /* We should only ever be called by MOV or MP4. */
1869  av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
1870 
1871  avio_wb32(pb, 18 + (track->mode == MODE_MP4));
1872  ffio_wfourcc(pb, "colr");
1873  if (track->mode == MODE_MP4)
1874  ffio_wfourcc(pb, "nclx");
1875  else
1876  ffio_wfourcc(pb, "nclc");
1877  switch (track->par->color_primaries) {
1878  case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
1879  case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
1880  case AVCOL_PRI_SMPTE170M:
1881  case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
1882  case AVCOL_PRI_BT2020: avio_wb16(pb, 9); break;
1883  case AVCOL_PRI_SMPTE431: avio_wb16(pb, 11); break;
1884  case AVCOL_PRI_SMPTE432: avio_wb16(pb, 12); break;
1885  default: avio_wb16(pb, 2);
1886  }
1887  switch (track->par->color_trc) {
1888  case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
1889  case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
1890  case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
1891  case AVCOL_TRC_SMPTEST2084: avio_wb16(pb, 16); break;
1892  case AVCOL_TRC_SMPTE428: avio_wb16(pb, 17); break;
1893  case AVCOL_TRC_ARIB_STD_B67: avio_wb16(pb, 18); break;
1894  default: avio_wb16(pb, 2);
1895  }
1896  switch (track->par->color_space) {
1897  case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
1898  case AVCOL_SPC_BT470BG:
1899  case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
1900  case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
1901  case AVCOL_SPC_BT2020_NCL: avio_wb16(pb, 9); break;
1902  default: avio_wb16(pb, 2);
1903  }
1904 
1905  if (track->mode == MODE_MP4) {
1906  int full_range = track->par->color_range == AVCOL_RANGE_JPEG;
1907  avio_w8(pb, full_range << 7);
1908  return 19;
1909  } else {
1910  return 18;
1911  }
1912 }
1913 
1914 static void find_compressor(char * compressor_name, int len, MOVTrack *track)
1915 {
1916  AVDictionaryEntry *encoder;
1917  int xdcam_res = (track->par->width == 1280 && track->par->height == 720)
1918  || (track->par->width == 1440 && track->par->height == 1080)
1919  || (track->par->width == 1920 && track->par->height == 1080);
1920 
1921  if (track->mode == MODE_MOV &&
1922  (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
1923  av_strlcpy(compressor_name, encoder->value, 32);
1924  } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
1926  AVStream *st = track->st;
1927  int rate = defined_frame_rate(NULL, st);
1928  av_strlcatf(compressor_name, len, "XDCAM");
1929  if (track->par->format == AV_PIX_FMT_YUV422P) {
1930  av_strlcatf(compressor_name, len, " HD422");
1931  } else if(track->par->width == 1440) {
1932  av_strlcatf(compressor_name, len, " HD");
1933  } else
1934  av_strlcatf(compressor_name, len, " EX");
1935 
1936  av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p');
1937 
1938  av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
1939  }
1940 }
1941 
1943 {
1944  int64_t pos = avio_tell(pb);
1945  char compressor_name[32] = { 0 };
1946  int avid = 0;
1947 
1948  int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422)
1949  || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422)
1950  || track->par->codec_id == AV_CODEC_ID_V308
1951  || track->par->codec_id == AV_CODEC_ID_V408
1952  || track->par->codec_id == AV_CODEC_ID_V410
1953  || track->par->codec_id == AV_CODEC_ID_V210);
1954 
1955  avio_wb32(pb, 0); /* size */
1956  if (mov->encryption_scheme != MOV_ENC_NONE) {
1957  ffio_wfourcc(pb, "encv");
1958  } else {
1959  avio_wl32(pb, track->tag); // store it byteswapped
1960  }
1961  avio_wb32(pb, 0); /* Reserved */
1962  avio_wb16(pb, 0); /* Reserved */
1963  avio_wb16(pb, 1); /* Data-reference index */
1964 
1965  if (uncompressed_ycbcr) {
1966  avio_wb16(pb, 2); /* Codec stream version */
1967  } else {
1968  avio_wb16(pb, 0); /* Codec stream version */
1969  }
1970  avio_wb16(pb, 0); /* Codec stream revision (=0) */
1971  if (track->mode == MODE_MOV) {
1972  ffio_wfourcc(pb, "FFMP"); /* Vendor */
1973  if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) {
1974  avio_wb32(pb, 0); /* Temporal Quality */
1975  avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
1976  } else {
1977  avio_wb32(pb, 0x200); /* Temporal Quality = normal */
1978  avio_wb32(pb, 0x200); /* Spatial Quality = normal */
1979  }
1980  } else {
1981  avio_wb32(pb, 0); /* Reserved */
1982  avio_wb32(pb, 0); /* Reserved */
1983  avio_wb32(pb, 0); /* Reserved */
1984  }
1985  avio_wb16(pb, track->par->width); /* Video width */
1986  avio_wb16(pb, track->height); /* Video height */
1987  avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
1988  avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
1989  avio_wb32(pb, 0); /* Data size (= 0) */
1990  avio_wb16(pb, 1); /* Frame count (= 1) */
1991 
1992  /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
1993  find_compressor(compressor_name, 32, track);
1994  avio_w8(pb, strlen(compressor_name));
1995  avio_write(pb, compressor_name, 31);
1996 
1997  if (track->mode == MODE_MOV &&
1998  (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210))
1999  avio_wb16(pb, 0x18);
2000  else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample)
2001  avio_wb16(pb, track->par->bits_per_coded_sample |
2002  (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0));
2003  else
2004  avio_wb16(pb, 0x18); /* Reserved */
2005 
2006  if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) {
2007  int pal_size = 1 << track->par->bits_per_coded_sample;
2008  int i;
2009  avio_wb16(pb, 0); /* Color table ID */
2010  avio_wb32(pb, 0); /* Color table seed */
2011  avio_wb16(pb, 0x8000); /* Color table flags */
2012  avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
2013  for (i = 0; i < pal_size; i++) {
2014  uint32_t rgb = track->palette[i];
2015  uint16_t r = (rgb >> 16) & 0xff;
2016  uint16_t g = (rgb >> 8) & 0xff;
2017  uint16_t b = rgb & 0xff;
2018  avio_wb16(pb, 0);
2019  avio_wb16(pb, (r << 8) | r);
2020  avio_wb16(pb, (g << 8) | g);
2021  avio_wb16(pb, (b << 8) | b);
2022  }
2023  } else
2024  avio_wb16(pb, 0xffff); /* Reserved */
2025 
2026  if (track->tag == MKTAG('m','p','4','v'))
2027  mov_write_esds_tag(pb, track);
2028  else if (track->par->codec_id == AV_CODEC_ID_H263)
2029  mov_write_d263_tag(pb);
2030  else if (track->par->codec_id == AV_CODEC_ID_AVUI ||
2031  track->par->codec_id == AV_CODEC_ID_SVQ3) {
2032  mov_write_extradata_tag(pb, track);
2033  avio_wb32(pb, 0);
2034  } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) {
2035  mov_write_avid_tag(pb, track);
2036  avid = 1;
2037  } else if (track->par->codec_id == AV_CODEC_ID_HEVC)
2038  mov_write_hvcc_tag(pb, track);
2039  else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
2040  mov_write_avcc_tag(pb, track);
2041  if (track->mode == MODE_IPOD)
2043  } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
2044  mov_write_vpcc_tag(mov->fc, pb, track);
2045  } else if (track->par->codec_id == AV_CODEC_ID_AV1) {
2046  mov_write_av1c_tag(pb, track);
2047  } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
2048  mov_write_dvc1_tag(pb, track);
2049  else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
2050  track->par->codec_id == AV_CODEC_ID_VP6A) {
2051  /* Don't write any potential extradata here - the cropping
2052  * is signalled via the normal width/height fields. */
2053  } else if (track->par->codec_id == AV_CODEC_ID_R10K) {
2054  if (track->par->codec_tag == MKTAG('R','1','0','k'))
2055  mov_write_dpxe_tag(pb, track);
2056  } else if (track->vos_len > 0)
2057  mov_write_glbl_tag(pb, track);
2058 
2059  if (track->par->codec_id != AV_CODEC_ID_H264 &&
2060  track->par->codec_id != AV_CODEC_ID_MPEG4 &&
2061  track->par->codec_id != AV_CODEC_ID_DNXHD) {
2062  int field_order = track->par->field_order;
2063 
2064 #if FF_API_LAVF_AVCTX
2066  if (field_order != track->st->codec->field_order && track->st->codec->field_order != AV_FIELD_UNKNOWN)
2067  field_order = track->st->codec->field_order;
2069 #endif
2070 
2071  if (field_order != AV_FIELD_UNKNOWN)
2072  mov_write_fiel_tag(pb, track, field_order);
2073  }
2074 
2075  if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
2076  if (track->mode == MODE_MOV)
2077  mov_write_gama_tag(s, pb, track, mov->gamma);
2078  else
2079  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
2080  }
2081  if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
2082  if (track->mode == MODE_MOV || track->mode == MODE_MP4)
2083  mov_write_colr_tag(pb, track);
2084  else
2085  av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
2086  }
2087 
2088  if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
2091 
2092  if (stereo_3d)
2093  mov_write_st3d_tag(s, pb, stereo_3d);
2094  if (spherical_mapping)
2095  mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
2096  }
2097 
2098  if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
2099  mov_write_pasp_tag(pb, track);
2100  }
2101 
2102  if (uncompressed_ycbcr){
2103  mov_write_clap_tag(pb, track);
2104  }
2105 
2106  if (mov->encryption_scheme != MOV_ENC_NONE) {
2107  ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
2108  }
2109 
2110  /* extra padding for avid stsd */
2111  /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
2112  if (avid)
2113  avio_wb32(pb, 0);
2114 
2115  return update_size(pb, pos);
2116 }
2117 
2118 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
2119 {
2120  int64_t pos = avio_tell(pb);
2121  avio_wb32(pb, 0); /* size */
2122  ffio_wfourcc(pb, "rtp ");
2123  avio_wb32(pb, 0); /* Reserved */
2124  avio_wb16(pb, 0); /* Reserved */
2125  avio_wb16(pb, 1); /* Data-reference index */
2126 
2127  avio_wb16(pb, 1); /* Hint track version */
2128  avio_wb16(pb, 1); /* Highest compatible version */
2129  avio_wb32(pb, track->max_packet_size); /* Max packet size */
2130 
2131  avio_wb32(pb, 12); /* size */
2132  ffio_wfourcc(pb, "tims");
2133  avio_wb32(pb, track->timescale);
2134 
2135  return update_size(pb, pos);
2136 }
2137 
2138 static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
2139 {
2140  uint64_t str_size =strlen(reel_name);
2141  int64_t pos = avio_tell(pb);
2142 
2143  if (str_size >= UINT16_MAX){
2144  av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
2145  avio_wb16(pb, 0);
2146  return AVERROR(EINVAL);
2147  }
2148 
2149  avio_wb32(pb, 0); /* size */
2150  ffio_wfourcc(pb, "name"); /* Data format */
2151  avio_wb16(pb, str_size); /* string size */
2152  avio_wb16(pb, track->language); /* langcode */
2153  avio_write(pb, reel_name, str_size); /* reel name */
2154  return update_size(pb,pos);
2155 }
2156 
2157 static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
2158 {
2159  int64_t pos = avio_tell(pb);
2160 #if 1
2161  int frame_duration;
2162  int nb_frames;
2163  AVDictionaryEntry *t = NULL;
2164 
2165  if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) {
2166 #if FF_API_LAVF_AVCTX
2168  frame_duration = av_rescale(track->timescale, track->st->codec->time_base.num, track->st->codec->time_base.den);
2169  nb_frames = ROUNDED_DIV(track->st->codec->time_base.den, track->st->codec->time_base.num);
2171 #else
2172  av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n");
2173  return AVERROR(EINVAL);
2174 #endif
2175  } else {
2176  frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.num, track->st->avg_frame_rate.den);
2177  nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.den, track->st->avg_frame_rate.num);
2178  }
2179 
2180  if (nb_frames > 255) {
2181  av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
2182  return AVERROR(EINVAL);
2183  }
2184 
2185  avio_wb32(pb, 0); /* size */
2186  ffio_wfourcc(pb, "tmcd"); /* Data format */
2187  avio_wb32(pb, 0); /* Reserved */
2188  avio_wb32(pb, 1); /* Data reference index */
2189  avio_wb32(pb, 0); /* Flags */
2190  avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
2191  avio_wb32(pb, track->timescale); /* Timescale */
2192  avio_wb32(pb, frame_duration); /* Frame duration */
2193  avio_w8(pb, nb_frames); /* Number of frames */
2194  avio_w8(pb, 0); /* Reserved */
2195 
2196  t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
2197  if (t && utf8len(t->value) && track->mode != MODE_MP4)
2198  mov_write_source_reference_tag(pb, track, t->value);
2199  else
2200  avio_wb16(pb, 0); /* zero size */
2201 #else
2202 
2203  avio_wb32(pb, 0); /* size */
2204  ffio_wfourcc(pb, "tmcd"); /* Data format */
2205  avio_wb32(pb, 0); /* Reserved */
2206  avio_wb32(pb, 1); /* Data reference index */
2207  if (track->par->extradata_size)
2208  avio_write(pb, track->par->extradata, track->par->extradata_size);
2209 #endif
2210  return update_size(pb, pos);
2211 }
2212 
2213 static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track)
2214 {
2215  int64_t pos = avio_tell(pb);
2216  avio_wb32(pb, 0); /* size */
2217  ffio_wfourcc(pb, "gpmd");
2218  avio_wb32(pb, 0); /* Reserved */
2219  avio_wb16(pb, 0); /* Reserved */
2220  avio_wb16(pb, 1); /* Data-reference index */
2221  avio_wb32(pb, 0); /* Reserved */
2222  return update_size(pb, pos);
2223 }
2224 
2226 {
2227  int64_t pos = avio_tell(pb);
2228  int ret = 0;
2229  avio_wb32(pb, 0); /* size */
2230  ffio_wfourcc(pb, "stsd");
2231  avio_wb32(pb, 0); /* version & flags */
2232  avio_wb32(pb, 1); /* entry count */
2233  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2234  ret = mov_write_video_tag(s, pb, mov, track);
2235  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2236  ret = mov_write_audio_tag(s, pb, mov, track);
2237  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)
2238  ret = mov_write_subtitle_tag(pb, track);
2239  else if (track->par->codec_tag == MKTAG('r','t','p',' '))
2240  ret = mov_write_rtp_tag(pb, track);
2241  else if (track->par->codec_tag == MKTAG('t','m','c','d'))
2242  ret = mov_write_tmcd_tag(pb, track);
2243  else if (track->par->codec_tag == MKTAG('g','p','m','d'))
2244  ret = mov_write_gpmd_tag(pb, track);
2245 
2246  if (ret < 0)
2247  return ret;
2248 
2249  return update_size(pb, pos);
2250 }
2251 
2253 {
2254  MOVMuxContext *mov = s->priv_data;
2255  MOVStts *ctts_entries;
2256  uint32_t entries = 0;
2257  uint32_t atom_size;
2258  int i;
2259 
2260  ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
2261  if (!ctts_entries)
2262  return AVERROR(ENOMEM);
2263  ctts_entries[0].count = 1;
2264  ctts_entries[0].duration = track->cluster[0].cts;
2265  for (i = 1; i < track->entry; i++) {
2266  if (track->cluster[i].cts == ctts_entries[entries].duration) {
2267  ctts_entries[entries].count++; /* compress */
2268  } else {
2269  entries++;
2270  ctts_entries[entries].duration = track->cluster[i].cts;
2271  ctts_entries[entries].count = 1;
2272  }
2273  }
2274  entries++; /* last one */
2275  atom_size = 16 + (entries * 8);
2276  avio_wb32(pb, atom_size); /* size */
2277  ffio_wfourcc(pb, "ctts");
2279  avio_w8(pb, 1); /* version */
2280  else
2281  avio_w8(pb, 0); /* version */
2282  avio_wb24(pb, 0); /* flags */
2283  avio_wb32(pb, entries); /* entry count */
2284  for (i = 0; i < entries; i++) {
2285  avio_wb32(pb, ctts_entries[i].count);
2286  avio_wb32(pb, ctts_entries[i].duration);
2287  }
2288  av_free(ctts_entries);
2289  return atom_size;
2290 }
2291 
2292 /* Time to sample atom */
2293 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
2294 {
2295  MOVStts *stts_entries = NULL;
2296  uint32_t entries = -1;
2297  uint32_t atom_size;
2298  int i;
2299 
2300  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
2301  stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
2302  if (!stts_entries)
2303  return AVERROR(ENOMEM);
2304  stts_entries[0].count = track->sample_count;
2305  stts_entries[0].duration = 1;
2306  entries = 1;
2307  } else {
2308  if (track->entry) {
2309  stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
2310  if (!stts_entries)
2311  return AVERROR(ENOMEM);
2312  }
2313  for (i = 0; i < track->entry; i++) {
2314  int duration = get_cluster_duration(track, i);
2315  if (i && duration == stts_entries[entries].duration) {
2316  stts_entries[entries].count++; /* compress */
2317  } else {
2318  entries++;
2319  stts_entries[entries].duration = duration;
2320  stts_entries[entries].count = 1;
2321  }
2322  }
2323  entries++; /* last one */
2324  }
2325  atom_size = 16 + (entries * 8);
2326  avio_wb32(pb, atom_size); /* size */
2327  ffio_wfourcc(pb, "stts");
2328  avio_wb32(pb, 0); /* version & flags */
2329  avio_wb32(pb, entries); /* entry count */
2330  for (i = 0; i < entries; i++) {
2331  avio_wb32(pb, stts_entries[i].count);
2332  avio_wb32(pb, stts_entries[i].duration);
2333  }
2334  av_free(stts_entries);
2335  return atom_size;
2336 }
2337 
2339 {
2340  avio_wb32(pb, 28); /* size */
2341  ffio_wfourcc(pb, "dref");
2342  avio_wb32(pb, 0); /* version & flags */
2343  avio_wb32(pb, 1); /* entry count */
2344 
2345  avio_wb32(pb, 0xc); /* size */
2346  //FIXME add the alis and rsrc atom
2347  ffio_wfourcc(pb, "url ");
2348  avio_wb32(pb, 1); /* version & flags */
2349 
2350  return 28;
2351 }
2352 
2354 {
2355  struct sgpd_entry {
2356  int count;
2357  int16_t roll_distance;
2358  int group_description_index;
2359  };
2360 
2361  struct sgpd_entry *sgpd_entries = NULL;
2362  int entries = -1;
2363  int group = 0;
2364  int i, j;
2365 
2366  const int OPUS_SEEK_PREROLL_MS = 80;
2367  int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS,
2368  (AVRational){1, 1000},
2369  (AVRational){1, 48000});
2370 
2371  if (!track->entry)
2372  return 0;
2373 
2374  sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries));
2375  if (!sgpd_entries)
2376  return AVERROR(ENOMEM);
2377 
2379 
2380  if (track->par->codec_id == AV_CODEC_ID_OPUS) {
2381  for (i = 0; i < track->entry; i++) {
2382  int roll_samples_remaining = roll_samples;
2383  int distance = 0;
2384  for (j = i - 1; j >= 0; j--) {
2385  roll_samples_remaining -= get_cluster_duration(track, j);
2386  distance++;
2387  if (roll_samples_remaining <= 0)
2388  break;
2389  }
2390  /* We don't have enough preceeding samples to compute a valid
2391  roll_distance here, so this sample can't be independently
2392  decoded. */
2393  if (roll_samples_remaining > 0)
2394  distance = 0;
2395  /* Verify distance is a maximum of 32 (2.5ms) packets. */
2396  if (distance > 32)
2397  return AVERROR_INVALIDDATA;
2398  if (i && distance == sgpd_entries[entries].roll_distance) {
2399  sgpd_entries[entries].count++;
2400  } else {
2401  entries++;
2402  sgpd_entries[entries].count = 1;
2403  sgpd_entries[entries].roll_distance = distance;
2404  sgpd_entries[entries].group_description_index = distance ? ++group : 0;
2405  }
2406  }
2407  } else {
2408  entries++;
2409  sgpd_entries[entries].count = track->sample_count;
2410  sgpd_entries[entries].roll_distance = 1;
2411  sgpd_entries[entries].group_description_index = ++group;
2412  }
2413  entries++;
2414 
2415  if (!group) {
2416  av_free(sgpd_entries);
2417  return 0;
2418  }
2419 
2420  /* Write sgpd tag */
2421  avio_wb32(pb, 24 + (group * 2)); /* size */
2422  ffio_wfourcc(pb, "sgpd");
2423  avio_wb32(pb, 1 << 24); /* fullbox */
2424  ffio_wfourcc(pb, "roll");
2425  avio_wb32(pb, 2); /* default_length */
2426  avio_wb32(pb, group); /* entry_count */
2427  for (i = 0; i < entries; i++) {
2428  if (sgpd_entries[i].group_description_index) {
2429  avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */
2430  }
2431  }
2432 
2433  /* Write sbgp tag */
2434  avio_wb32(pb, 20 + (entries * 8)); /* size */
2435  ffio_wfourcc(pb, "sbgp");
2436  avio_wb32(pb, 0); /* fullbox */
2437  ffio_wfourcc(pb, "roll");
2438  avio_wb32(pb, entries); /* entry_count */
2439  for (i = 0; i < entries; i++) {
2440  avio_wb32(pb, sgpd_entries[i].count); /* sample_count */
2441  avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */
2442  }
2443 
2444  av_free(sgpd_entries);
2445  return 0;
2446 }
2447 
2449 {
2450  int64_t pos = avio_tell(pb);
2451  int ret = 0;
2452 
2453  avio_wb32(pb, 0); /* size */
2454  ffio_wfourcc(pb, "stbl");
2455  if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0)
2456  return ret;
2457  mov_write_stts_tag(pb, track);
2458  if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2459  track->par->codec_tag == MKTAG('r','t','p',' ')) &&
2460  track->has_keyframes && track->has_keyframes < track->entry)
2461  mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
2462  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable)
2463  mov_write_sdtp_tag(pb, track);
2464  if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
2466  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO &&
2467  track->flags & MOV_TRACK_CTTS && track->entry) {
2468 
2469  if ((ret = mov_write_ctts_tag(s, pb, track)) < 0)
2470  return ret;
2471  }
2472  mov_write_stsc_tag(pb, track);
2473  mov_write_stsz_tag(pb, track);
2474  mov_write_stco_tag(pb, track);
2475  if (track->cenc.aes_ctr) {
2476  ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
2477  }
2478  if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) {
2479  mov_preroll_write_stbl_atoms(pb, track);
2480  }
2481  return update_size(pb, pos);
2482 }
2483 
2485 {
2486  int64_t pos = avio_tell(pb);
2487  avio_wb32(pb, 0); /* size */
2488  ffio_wfourcc(pb, "dinf");
2489  mov_write_dref_tag(pb);
2490  return update_size(pb, pos);
2491 }
2492 
2494 {
2495  avio_wb32(pb, 12);
2496  ffio_wfourcc(pb, "nmhd");
2497  avio_wb32(pb, 0);
2498  return 12;
2499 }
2500 
2501 static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
2502 {
2503  int64_t pos = avio_tell(pb);
2504  const char *font = "Lucida Grande";
2505  avio_wb32(pb, 0); /* size */
2506  ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
2507  avio_wb32(pb, 0); /* version & flags */
2508  avio_wb16(pb, 0); /* text font */
2509  avio_wb16(pb, 0); /* text face */
2510  avio_wb16(pb, 12); /* text size */
2511  avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
2512  avio_wb16(pb, 0x0000); /* text color (red) */
2513  avio_wb16(pb, 0x0000); /* text color (green) */
2514  avio_wb16(pb, 0x0000); /* text color (blue) */
2515  avio_wb16(pb, 0xffff); /* background color (red) */
2516  avio_wb16(pb, 0xffff); /* background color (green) */
2517  avio_wb16(pb, 0xffff); /* background color (blue) */
2518  avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
2519  avio_write(pb, font, strlen(font)); /* font name */
2520  return update_size(pb, pos);
2521 }
2522 
2523 static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
2524 {
2525  int64_t pos = avio_tell(pb);
2526  avio_wb32(pb, 0); /* size */
2527  ffio_wfourcc(pb, "gmhd");
2528  avio_wb32(pb, 0x18); /* gmin size */
2529  ffio_wfourcc(pb, "gmin");/* generic media info */
2530  avio_wb32(pb, 0); /* version & flags */
2531  avio_wb16(pb, 0x40); /* graphics mode = */
2532  avio_wb16(pb, 0x8000); /* opColor (r?) */
2533  avio_wb16(pb, 0x8000); /* opColor (g?) */
2534  avio_wb16(pb, 0x8000); /* opColor (b?) */
2535  avio_wb16(pb, 0); /* balance */
2536  avio_wb16(pb, 0); /* reserved */
2537 
2538  /*
2539  * This special text atom is required for
2540  * Apple Quicktime chapters. The contents
2541  * don't appear to be documented, so the
2542  * bytes are copied verbatim.
2543  */
2544  if (track->tag != MKTAG('c','6','0','8')) {
2545  avio_wb32(pb, 0x2C); /* size */
2546  ffio_wfourcc(pb, "text");
2547  avio_wb16(pb, 0x01);
2548  avio_wb32(pb, 0x00);
2549  avio_wb32(pb, 0x00);
2550  avio_wb32(pb, 0x00);
2551  avio_wb32(pb, 0x01);
2552  avio_wb32(pb, 0x00);
2553  avio_wb32(pb, 0x00);
2554  avio_wb32(pb, 0x00);
2555  avio_wb32(pb, 0x00004000);
2556  avio_wb16(pb, 0x0000);
2557  }
2558 
2559  if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2560  int64_t tmcd_pos = avio_tell(pb);
2561  avio_wb32(pb, 0); /* size */
2562  ffio_wfourcc(pb, "tmcd");
2563  mov_write_tcmi_tag(pb, track);
2564  update_size(pb, tmcd_pos);
2565  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2566  int64_t gpmd_pos = avio_tell(pb);
2567  avio_wb32(pb, 0); /* size */
2568  ffio_wfourcc(pb, "gpmd");
2569  avio_wb32(pb, 0); /* version */
2570  update_size(pb, gpmd_pos);
2571  }
2572  return update_size(pb, pos);
2573 }
2574 
2576 {
2577  avio_wb32(pb, 16); /* size */
2578  ffio_wfourcc(pb, "smhd");
2579  avio_wb32(pb, 0); /* version & flags */
2580  avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
2581  avio_wb16(pb, 0); /* reserved */
2582  return 16;
2583 }
2584 
2586 {
2587  avio_wb32(pb, 0x14); /* size (always 0x14) */
2588  ffio_wfourcc(pb, "vmhd");
2589  avio_wb32(pb, 0x01); /* version & flags */
2590  avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
2591  return 0x14;
2592 }
2593 
2594 static int is_clcp_track(MOVTrack *track)
2595 {
2596  return track->tag == MKTAG('c','7','0','8') ||
2597  track->tag == MKTAG('c','6','0','8');
2598 }
2599 
2601 {
2602  MOVMuxContext *mov = s->priv_data;
2603  const char *hdlr, *descr = NULL, *hdlr_type = NULL;
2604  int64_t pos = avio_tell(pb);
2605 
2606  hdlr = "dhlr";
2607  hdlr_type = "url ";
2608  descr = "DataHandler";
2609 
2610  if (track) {
2611  hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
2612  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
2613  hdlr_type = "vide";
2614  descr = "VideoHandler";
2615  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
2616  hdlr_type = "soun";
2617  descr = "SoundHandler";
2618  } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2619  if (is_clcp_track(track)) {
2620  hdlr_type = "clcp";
2621  descr = "ClosedCaptionHandler";
2622  } else {
2623  if (track->tag == MKTAG('t','x','3','g')) {
2624  hdlr_type = "sbtl";
2625  } else if (track->tag == MKTAG('m','p','4','s')) {
2626  hdlr_type = "subp";
2627  } else {
2628  hdlr_type = "text";
2629  }
2630  descr = "SubtitleHandler";
2631  }
2632  } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) {
2633  hdlr_type = "hint";
2634  descr = "HintHandler";
2635  } else if (track->par->codec_tag == MKTAG('t','m','c','d')) {
2636  hdlr_type = "tmcd";
2637  descr = "TimeCodeHandler";
2638  } else if (track->par->codec_tag == MKTAG('g','p','m','d')) {
2639  hdlr_type = "meta";
2640  descr = "GoPro MET"; // GoPro Metadata
2641  } else {
2643  "Unknown hldr_type for %s, writing dummy values\n",
2644  av_fourcc2str(track->par->codec_tag));
2645  }
2646  if (track->st) {
2647  // hdlr.name is used by some players to identify the content title
2648  // of the track. So if an alternate handler description is
2649  // specified, use it.
2650  AVDictionaryEntry *t;
2651  t = av_dict_get(track->st->metadata, "handler_name", NULL, 0);
2652  if (t && utf8len(t->value))
2653  descr = t->value;
2654  }
2655  }
2656 
2657  if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */
2658  descr = "";
2659 
2660  avio_wb32(pb, 0); /* size */
2661  ffio_wfourcc(pb, "hdlr");
2662  avio_wb32(pb, 0); /* Version & flags */
2663  avio_write(pb, hdlr, 4); /* handler */
2664  ffio_wfourcc(pb, hdlr_type); /* handler type */
2665  avio_wb32(pb, 0); /* reserved */
2666  avio_wb32(pb, 0); /* reserved */
2667  avio_wb32(pb, 0); /* reserved */
2668  if (!track || track->mode == MODE_MOV)
2669  avio_w8(pb, strlen(descr)); /* pascal string */
2670  avio_write(pb, descr, strlen(descr)); /* handler description */
2671  if (track && track->mode != MODE_MOV)
2672  avio_w8(pb, 0); /* c string */
2673  return update_size(pb, pos);
2674 }
2675 
2677 {
2678  /* This atom must be present, but leaving the values at zero
2679  * seems harmless. */
2680  avio_wb32(pb, 28); /* size */
2681  ffio_wfourcc(pb, "hmhd");
2682  avio_wb32(pb, 0); /* version, flags */
2683  avio_wb16(pb, 0); /* maxPDUsize */
2684  avio_wb16(pb, 0); /* avgPDUsize */
2685  avio_wb32(pb, 0); /* maxbitrate */
2686  avio_wb32(pb, 0); /* avgbitrate */
2687  avio_wb32(pb, 0); /* reserved */
2688  return 28;
2689 }
2690 
2692 {
2693  int64_t pos = avio_tell(pb);
2694  int ret;
2695 
2696  avio_wb32(pb, 0); /* size */
2697  ffio_wfourcc(pb, "minf");
2698  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO)
2699  mov_write_vmhd_tag(pb);
2700  else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2701  mov_write_smhd_tag(pb);
2702  else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2703  if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
2704  mov_write_gmhd_tag(pb, track);
2705  } else {
2706  mov_write_nmhd_tag(pb);
2707  }
2708  } else if (track->tag == MKTAG('r','t','p',' ')) {
2709  mov_write_hmhd_tag(pb);
2710  } else if (track->tag == MKTAG('t','m','c','d')) {
2711  if (track->mode != MODE_MOV)
2712  mov_write_nmhd_tag(pb);
2713  else
2714  mov_write_gmhd_tag(pb, track);
2715  } else if (track->tag == MKTAG('g','p','m','d')) {
2716  mov_write_gmhd_tag(pb, track);
2717  }
2718  if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */
2719  mov_write_hdlr_tag(s, pb, NULL);
2720  mov_write_dinf_tag(pb);
2721  if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0)
2722  return ret;
2723  return update_size(pb, pos);
2724 }
2725 
2727  MOVTrack *track)
2728 {
2729  int version = track->track_duration < INT32_MAX ? 0 : 1;
2730 
2731  if (track->mode == MODE_ISM)
2732  version = 1;
2733 
2734  (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
2735  ffio_wfourcc(pb, "mdhd");
2736  avio_w8(pb, version);
2737  avio_wb24(pb, 0); /* flags */
2738  if (version == 1) {
2739  avio_wb64(pb, track->time);
2740  avio_wb64(pb, track->time);
2741  } else {
2742  avio_wb32(pb, track->time); /* creation time */
2743  avio_wb32(pb, track->time); /* modification time */
2744  }
2745  avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
2746  if (!track->entry && mov->mode == MODE_ISM)
2747  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2748  else if (!track->entry)
2749  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2750  else
2751  (version == 1) ? avio_wb64(pb, track->track_duration) : avio_wb32(pb, track->track_duration); /* duration */
2752  avio_wb16(pb, track->language); /* language */
2753  avio_wb16(pb, 0); /* reserved (quality) */
2754 
2755  if (version != 0 && track->mode == MODE_MOV) {
2757  "FATAL error, file duration too long for timebase, this file will not be\n"
2758  "playable with QuickTime. Choose a different timebase with "
2759  "-video_track_timescale or a different container format\n");
2760  }
2761 
2762  return 32;
2763 }
2764 
2766  MOVMuxContext *mov, MOVTrack *track)
2767 {
2768  int64_t pos = avio_tell(pb);
2769  int ret;
2770 
2771  avio_wb32(pb, 0); /* size */
2772  ffio_wfourcc(pb, "mdia");
2773  mov_write_mdhd_tag(pb, mov, track);
2774  mov_write_hdlr_tag(s, pb, track);
2775  if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0)
2776  return ret;
2777  return update_size(pb, pos);
2778 }
2779 
2780 /* transformation matrix
2781  |a b u|
2782  |c d v|
2783  |tx ty w| */
2784 static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c,
2785  int16_t d, int16_t tx, int16_t ty)
2786 {
2787  avio_wb32(pb, a << 16); /* 16.16 format */
2788  avio_wb32(pb, b << 16); /* 16.16 format */
2789  avio_wb32(pb, 0); /* u in 2.30 format */
2790  avio_wb32(pb, c << 16); /* 16.16 format */
2791  avio_wb32(pb, d << 16); /* 16.16 format */
2792  avio_wb32(pb, 0); /* v in 2.30 format */
2793  avio_wb32(pb, tx << 16); /* 16.16 format */
2794  avio_wb32(pb, ty << 16); /* 16.16 format */
2795  avio_wb32(pb, 1 << 30); /* w in 2.30 format */
2796 }
2797 
2799  MOVTrack *track, AVStream *st)
2800 {
2802  track->timescale, AV_ROUND_UP);
2803  int version = duration < INT32_MAX ? 0 : 1;
2805  int rotation = 0;
2806  int group = 0;
2807 
2808  uint32_t *display_matrix = NULL;
2809  int display_matrix_size, i;
2810 
2811  if (st) {
2812  if (mov->per_stream_grouping)
2813  group = st->index;
2814  else
2815  group = st->codecpar->codec_type;
2816 
2817  display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
2818  &display_matrix_size);
2819  if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
2820  display_matrix = NULL;
2821  }
2822 
2823  if (track->flags & MOV_TRACK_ENABLED)
2824  flags |= MOV_TKHD_FLAG_ENABLED;
2825 
2826  if (track->mode == MODE_ISM)
2827  version = 1;
2828 
2829  (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
2830  ffio_wfourcc(pb, "tkhd");
2831  avio_w8(pb, version);
2832  avio_wb24(pb, flags);
2833  if (version == 1) {
2834  avio_wb64(pb, track->time);
2835  avio_wb64(pb, track->time);
2836  } else {
2837  avio_wb32(pb, track->time); /* creation time */
2838  avio_wb32(pb, track->time); /* modification time */
2839  }
2840  avio_wb32(pb, track->track_id); /* track-id */
2841  avio_wb32(pb, 0); /* reserved */
2842  if (!track->entry && mov->mode == MODE_ISM)
2843  (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff);
2844  else if (!track->entry)
2845  (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0);
2846  else
2847  (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
2848 
2849  avio_wb32(pb, 0); /* reserved */
2850  avio_wb32(pb, 0); /* reserved */
2851  avio_wb16(pb, 0); /* layer */
2852  avio_wb16(pb, group); /* alternate group) */
2853  /* Volume, only for audio */
2854  if (track->par->codec_type == AVMEDIA_TYPE_AUDIO)
2855  avio_wb16(pb, 0x0100);
2856  else
2857  avio_wb16(pb, 0);
2858  avio_wb16(pb, 0); /* reserved */
2859 
2860  /* Matrix structure */
2861 #if FF_API_OLD_ROTATE_API
2862  if (st && st->metadata) {
2863  AVDictionaryEntry *rot = av_dict_get(st->metadata, "rotate", NULL, 0);
2864  rotation = (rot && rot->value) ? atoi(rot->value) : 0;
2865  }
2866 #endif
2867  if (display_matrix) {
2868  for (i = 0; i < 9; i++)
2869  avio_wb32(pb, display_matrix[i]);
2870 #if FF_API_OLD_ROTATE_API
2871  } else if (rotation == 90) {
2872  write_matrix(pb, 0, 1, -1, 0, track->par->height, 0);
2873  } else if (rotation == 180) {
2874  write_matrix(pb, -1, 0, 0, -1, track->par->width, track->par->height);
2875  } else if (rotation == 270) {
2876  write_matrix(pb, 0, -1, 1, 0, 0, track->par->width);
2877 #endif
2878  } else {
2879  write_matrix(pb, 1, 0, 0, 1, 0, 0);
2880  }
2881  /* Track width and height, for visual only */
2882  if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO ||
2883  track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
2884  int64_t track_width_1616;
2885  if (track->mode == MODE_MOV) {
2886  track_width_1616 = track->par->width * 0x10000ULL;
2887  } else {
2888  track_width_1616 = av_rescale(st->sample_aspect_ratio.num,
2889  track->par->width * 0x10000LL,
2890  st->sample_aspect_ratio.den);
2891  if (!track_width_1616 ||
2892  track->height != track->par->height ||
2893  track_width_1616 > UINT32_MAX)
2894  track_width_1616 = track->par->width * 0x10000ULL;
2895  }
2896  if (track_width_1616 > UINT32_MAX) {
2897  av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n");
2898  track_width_1616 = 0;
2899  }
2900  avio_wb32(pb, track_width_1616);
2901  if (track->height > 0xFFFF) {
2902  av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n");
2903  avio_wb32(pb, 0);
2904  } else
2905  avio_wb32(pb, track->height * 0x10000U);
2906  } else {
2907  avio_wb32(pb, 0);
2908  avio_wb32(pb, 0);
2909  }
2910  return 0x5c;
2911 }
2912 
2913 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
2914 {
2916  track->par->sample_aspect_ratio.den);
2917 
2918  int64_t pos = avio_tell(pb);
2919 
2920  avio_wb32(pb, 0); /* size */
2921  ffio_wfourcc(pb, "tapt");
2922 
2923  avio_wb32(pb, 20);
2924  ffio_wfourcc(pb, "clef");
2925  avio_wb32(pb, 0);
2926  avio_wb32(pb, width << 16);
2927  avio_wb32(pb, track->par->height << 16);
2928 
2929  avio_wb32(pb, 20);
2930  ffio_wfourcc(pb, "prof");
2931  avio_wb32(pb, 0);
2932  avio_wb32(pb, width << 16);
2933  avio_wb32(pb, track->par->height << 16);
2934 
2935  avio_wb32(pb, 20);
2936  ffio_wfourcc(pb, "enof");
2937  avio_wb32(pb, 0);
2938  avio_wb32(pb, track->par->width << 16);
2939  avio_wb32(pb, track->par->height << 16);
2940 
2941  return update_size(pb, pos);
2942 }
2943 
2944 // This box seems important for the psp playback ... without it the movie seems to hang
2946  MOVTrack *track)
2947 {
2949  track->timescale, AV_ROUND_UP);
2950  int version = duration < INT32_MAX ? 0 : 1;
2951  int entry_size, entry_count, size;
2952  int64_t delay, start_ct = track->start_cts;
2953  int64_t start_dts = track->start_dts;
2954 
2955  if (track->entry) {
2956  if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) {
2957 
2958  av_log(mov->fc, AV_LOG_DEBUG,
2959  "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n",
2960  track->cluster[0].dts, track->cluster[0].cts,
2961  start_dts, start_ct, track->track_id);
2962  start_dts = track->cluster[0].dts;
2963  start_ct = track->cluster[0].cts;
2964  }
2965  }
2966 
2967  delay = av_rescale_rnd(start_dts + start_ct, MOV_TIMESCALE,
2968  track->timescale, AV_ROUND_DOWN);
2969  version |= delay < INT32_MAX ? 0 : 1;
2970 
2971  entry_size = (version == 1) ? 20 : 12;
2972  entry_count = 1 + (delay > 0);
2973  size = 24 + entry_count * entry_size;
2974 
2975  /* write the atom data */
2976  avio_wb32(pb, size);
2977  ffio_wfourcc(pb, "edts");
2978  avio_wb32(pb, size - 8);
2979  ffio_wfourcc(pb, "elst");
2980  avio_w8(pb, version);
2981  avio_wb24(pb, 0); /* flags */
2982 
2983  avio_wb32(pb, entry_count);
2984  if (delay > 0) { /* add an empty edit to delay presentation */
2985  /* In the positive delay case, the delay includes the cts
2986  * offset, and the second edit list entry below trims out
2987  * the same amount from the actual content. This makes sure
2988  * that the offset last sample is included in the edit
2989  * list duration as well. */
2990  if (version == 1) {
2991  avio_wb64(pb, delay);
2992  avio_wb64(pb, -1);
2993  } else {
2994  avio_wb32(pb, delay);
2995  avio_wb32(pb, -1);
2996  }
2997  avio_wb32(pb, 0x00010000);
2998  } else {
2999  /* Avoid accidentally ending up with start_ct = -1 which has got a
3000  * special meaning. Normally start_ct should end up positive or zero
3001  * here, but use FFMIN in case dts is a small positive integer
3002  * rounded to 0 when represented in MOV_TIMESCALE units. */
3003  av_assert0(av_rescale_rnd(start_dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
3004  start_ct = -FFMIN(start_dts, 0);
3005  /* Note, this delay is calculated from the pts of the first sample,
3006  * ensuring that we don't reduce the duration for cases with
3007  * dts<0 pts=0. */
3008  duration += delay;
3009  }
3010 
3011  /* For fragmented files, we don't know the full length yet. Setting
3012  * duration to 0 allows us to only specify the offset, including
3013  * the rest of the content (from all future fragments) without specifying
3014  * an explicit duration. */
3015  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3016  duration = 0;
3017 
3018  /* duration */
3019  if (version == 1) {
3020  avio_wb64(pb, duration);
3021  avio_wb64(pb, start_ct);
3022  } else {
3023  avio_wb32(pb, duration);
3024  avio_wb32(pb, start_ct);
3025  }
3026  avio_wb32(pb, 0x00010000);
3027  return size;
3028 }
3029 
3030 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
3031 {
3032  avio_wb32(pb, 20); // size
3033  ffio_wfourcc(pb, "tref");
3034  avio_wb32(pb, 12); // size (subatom)
3035  avio_wl32(pb, track->tref_tag);
3036  avio_wb32(pb, track->tref_id);
3037  return 20;
3038 }
3039 
3040 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it)
3042 {
3043  avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
3044  ffio_wfourcc(pb, "uuid");
3045  ffio_wfourcc(pb, "USMT");
3046  avio_wb32(pb, 0x21d24fce);
3047  avio_wb32(pb, 0xbb88695c);
3048  avio_wb32(pb, 0xfac9c740);
3049  avio_wb32(pb, 0x1c); // another size here!
3050  ffio_wfourcc(pb, "MTDT");
3051  avio_wb32(pb, 0x00010012);
3052  avio_wb32(pb, 0x0a);
3053  avio_wb32(pb, 0x55c40000);
3054  avio_wb32(pb, 0x1);
3055  avio_wb32(pb, 0x0);
3056  return 0x34;
3057 }
3058 
3059 static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track)
3060 {
3061  AVFormatContext *ctx = track->rtp_ctx;
3062  char buf[1000] = "";
3063  int len;
3064 
3065  ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track,
3066  NULL, NULL, 0, 0, ctx);
3067  av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id);
3068  len = strlen(buf);
3069 
3070  avio_wb32(pb, len + 24);
3071  ffio_wfourcc(pb, "udta");
3072  avio_wb32(pb, len + 16);
3073  ffio_wfourcc(pb, "hnti");
3074  avio_wb32(pb, len + 8);
3075  ffio_wfourcc(pb, "sdp ");
3076  avio_write(pb, buf, len);
3077  return len + 24;
3078 }
3079 
3081  const char *tag, const char *str)
3082 {
3083  int64_t pos = avio_tell(pb);
3084  AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0);
3085  if (!t || !utf8len(t->value))
3086  return 0;
3087 
3088  avio_wb32(pb, 0); /* size */
3089  ffio_wfourcc(pb, tag); /* type */
3090  avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */
3091  return update_size(pb, pos);
3092 }
3093 
3095  AVStream *st)
3096 {
3097  AVIOContext *pb_buf;
3098  int ret, size;
3099  uint8_t *buf;
3100 
3101  if (!st)
3102  return 0;
3103 
3104  ret = avio_open_dyn_buf(&pb_buf);
3105  if (ret < 0)
3106  return ret;
3107 
3108  if (mov->mode & (MODE_MP4|MODE_MOV))
3109  mov_write_track_metadata(pb_buf, st, "name", "title");
3110 
3111  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3112  avio_wb32(pb, size + 8);
3113  ffio_wfourcc(pb, "udta");
3114  avio_write(pb, buf, size);
3115  }
3116  av_free(buf);
3117 
3118  return 0;
3119 }
3120 
3122  MOVTrack *track, AVStream *st)
3123 {
3124  int64_t pos = avio_tell(pb);
3125  int entry_backup = track->entry;
3126  int chunk_backup = track->chunkCount;
3127  int ret;
3128 
3129  /* If we want to have an empty moov, but some samples already have been
3130  * buffered (delay_moov), pretend that no samples have been written yet. */
3131  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
3132  track->chunkCount = track->entry = 0;
3133 
3134  avio_wb32(pb, 0); /* size */
3135  ffio_wfourcc(pb, "trak");
3136  mov_write_tkhd_tag(pb, mov, track, st);
3137 
3138  av_assert2(mov->use_editlist >= 0);
3139 
3140  if (track->start_dts != AV_NOPTS_VALUE) {
3141  if (mov->use_editlist)
3142  mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
3143  else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track))
3144  av_log(mov->fc, AV_LOG_WARNING,
3145  "Not writing any edit list even though one would have been required\n");
3146  }
3147 
3148  if (track->tref_tag)
3149  mov_write_tref_tag(pb, track);
3150 
3151  if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0)
3152  return ret;
3153  if (track->mode == MODE_PSP)
3154  mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
3155  if (track->tag == MKTAG('r','t','p',' '))
3156  mov_write_udta_sdp(pb, track);
3157  if (track->mode == MODE_MOV) {
3158  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
3159  double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
3160  if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) {
3161  mov_write_tapt_tag(pb, track);
3162  }
3163  }
3164  if (is_clcp_track(track) && st->sample_aspect_ratio.num) {
3165  mov_write_tapt_tag(pb, track);
3166  }
3167  }
3168  mov_write_track_udta_tag(pb, mov, st);
3169  track->entry = entry_backup;
3170  track->chunkCount = chunk_backup;
3171  return update_size(pb, pos);
3172 }
3173 
3175 {
3176  int i, has_audio = 0, has_video = 0;
3177  int64_t pos = avio_tell(pb);
3178  int audio_profile = mov->iods_audio_profile;
3179  int video_profile = mov->iods_video_profile;
3180  for (i = 0; i < mov->nb_streams; i++) {
3181  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3182  has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO;
3183  has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO;
3184  }
3185  }
3186  if (audio_profile < 0)
3187  audio_profile = 0xFF - has_audio;
3188  if (video_profile < 0)
3189  video_profile = 0xFF - has_video;
3190  avio_wb32(pb, 0x0); /* size */
3191  ffio_wfourcc(pb, "iods");
3192  avio_wb32(pb, 0); /* version & flags */
3193  put_descr(pb, 0x10, 7);
3194  avio_wb16(pb, 0x004f);
3195  avio_w8(pb, 0xff);
3196  avio_w8(pb, 0xff);
3197  avio_w8(pb, audio_profile);
3198  avio_w8(pb, video_profile);
3199  avio_w8(pb, 0xff);
3200  return update_size(pb, pos);
3201 }
3202 
3203 static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track)
3204 {
3205  avio_wb32(pb, 0x20); /* size */
3206  ffio_wfourcc(pb, "trex");
3207  avio_wb32(pb, 0); /* version & flags */
3208  avio_wb32(pb, track->track_id); /* track ID */
3209  avio_wb32(pb, 1); /* default sample description index */
3210  avio_wb32(pb, 0); /* default sample duration */
3211  avio_wb32(pb, 0); /* default sample size */
3212  avio_wb32(pb, 0); /* default sample flags */
3213  return 0;
3214 }
3215 
3217 {
3218  int64_t pos = avio_tell(pb);
3219  int i;
3220  avio_wb32(pb, 0x0); /* size */
3221  ffio_wfourcc(pb, "mvex");
3222  for (i = 0; i < mov->nb_streams; i++)
3223  mov_write_trex_tag(pb, &mov->tracks[i]);
3224  return update_size(pb, pos);
3225 }
3226 
3228 {
3229  int max_track_id = 1, i;
3230  int64_t max_track_len = 0;
3231  int version;
3232 
3233  for (i = 0; i < mov->nb_streams; i++) {
3234  if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) {
3235  int64_t max_track_len_temp = av_rescale_rnd(mov->tracks[i].track_duration,
3236  MOV_TIMESCALE,
3237  mov->tracks[i].timescale,
3238  AV_ROUND_UP);
3239  if (max_track_len < max_track_len_temp)
3240  max_track_len = max_track_len_temp;
3241  if (max_track_id < mov->tracks[i].track_id)
3242  max_track_id = mov->tracks[i].track_id;
3243  }
3244  }
3245  /* If using delay_moov, make sure the output is the same as if no
3246  * samples had been written yet. */
3247  if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) {
3248  max_track_len = 0;
3249  max_track_id = 1;
3250  }
3251 
3252  version = max_track_len < UINT32_MAX ? 0 : 1;
3253  avio_wb32(pb, version == 1 ? 120 : 108); /* size */
3254 
3255  ffio_wfourcc(pb, "mvhd");
3256  avio_w8(pb, version);
3257  avio_wb24(pb, 0); /* flags */
3258  if (version == 1) {
3259  avio_wb64(pb, mov->time);
3260  avio_wb64(pb, mov->time);
3261  } else {
3262  avio_wb32(pb, mov->time); /* creation time */
3263  avio_wb32(pb, mov->time); /* modification time */
3264  }
3265  avio_wb32(pb, MOV_TIMESCALE);
3266  (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */
3267 
3268  avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
3269  avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
3270  avio_wb16(pb, 0); /* reserved */
3271  avio_wb32(pb, 0); /* reserved */
3272  avio_wb32(pb, 0); /* reserved */
3273 
3274  /* Matrix structure */
3275  write_matrix(pb, 1, 0, 0, 1, 0, 0);
3276 
3277  avio_wb32(pb, 0); /* reserved (preview time) */
3278  avio_wb32(pb, 0); /* reserved (preview duration) */
3279  avio_wb32(pb, 0); /* reserved (poster time) */
3280  avio_wb32(pb, 0); /* reserved (selection time) */
3281  avio_wb32(pb, 0); /* reserved (selection duration) */
3282  avio_wb32(pb, 0); /* reserved (current time) */
3283  avio_wb32(pb, max_track_id + 1); /* Next track id */
3284  return 0x6c;
3285 }
3286 
3288  AVFormatContext *s)
3289 {
3290  avio_wb32(pb, 33); /* size */
3291  ffio_wfourcc(pb, "hdlr");
3292  avio_wb32(pb, 0);
3293  avio_wb32(pb, 0);
3294  ffio_wfourcc(pb, "mdir");
3295  ffio_wfourcc(pb, "appl");
3296  avio_wb32(pb, 0);
3297  avio_wb32(pb, 0);
3298  avio_w8(pb, 0);
3299  return 33;
3300 }
3301 
3302 /* helper function to write a data tag with the specified string as data */
3303 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
3304 {
3305  if (long_style) {
3306  int size = 16 + strlen(data);
3307  avio_wb32(pb, size); /* size */
3308  ffio_wfourcc(pb, "data");
3309  avio_wb32(pb, 1);
3310  avio_wb32(pb, 0);
3311  avio_write(pb, data, strlen(data));
3312  return size;
3313  } else {
3314  if (!lang)
3315  lang = ff_mov_iso639_to_lang("und", 1);
3316  avio_wb16(pb, strlen(data)); /* string length */
3317  avio_wb16(pb, lang);
3318  avio_write(pb, data, strlen(data));
3319  return strlen(data) + 4;
3320  }
3321 }
3322 
3323 static int mov_write_string_tag(AVIOContext *pb, const char *name,
3324  const char *value, int lang, int long_style)
3325 {
3326  int size = 0;
3327  if (value && value[0]) {
3328  int64_t pos = avio_tell(pb);
3329  avio_wb32(pb, 0); /* size */
3330  ffio_wfourcc(pb, name);
3331  mov_write_string_data_tag(pb, value, lang, long_style);
3332  size = update_size(pb, pos);
3333  }
3334  return size;
3335 }
3336 
3338  const char *tag, int *lang)
3339 {
3340  int l, len, len2;
3341  AVDictionaryEntry *t, *t2 = NULL;
3342  char tag2[16];
3343 
3344  *lang = 0;
3345 
3346  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3347  return NULL;
3348 
3349  len = strlen(t->key);
3350  snprintf(tag2, sizeof(tag2), "%s-", tag);
3351  while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {
3352  len2 = strlen(t2->key);
3353  if (len2 == len + 4 && !strcmp(t->value, t2->value)
3354  && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) {
3355  *lang = l;
3356  return t;
3357  }
3358  }
3359  return t;
3360 }
3361 
3363  const char *name, const char *tag,
3364  int long_style)
3365 {
3366  int lang;
3367  AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang);
3368  if (!t)
3369  return 0;
3370  return mov_write_string_tag(pb, name, t->value, lang, long_style);
3371 }
3372 
3373 /* iTunes bpm number */
3375 {
3376  AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0);
3377  int size = 0, tmpo = t ? atoi(t->value) : 0;
3378  if (tmpo) {
3379  size = 26;
3380  avio_wb32(pb, size);
3381  ffio_wfourcc(pb, "tmpo");
3382  avio_wb32(pb, size-8); /* size */
3383  ffio_wfourcc(pb, "data");
3384  avio_wb32(pb, 0x15); //type specifier
3385  avio_wb32(pb, 0);
3386  avio_wb16(pb, tmpo); // data
3387  }
3388  return size;
3389 }
3390 
3391 /* 3GPP TS 26.244 */
3393 {
3394  int lang;
3395  int64_t pos = avio_tell(pb);
3396  double latitude, longitude, altitude;
3397  int32_t latitude_fix, longitude_fix, altitude_fix;
3398  AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang);
3399  const char *ptr, *place = "";
3400  char *end;
3401  static const char *astronomical_body = "earth";
3402  if (!t)
3403  return 0;
3404 
3405  ptr = t->value;
3406  longitude = strtod(ptr, &end);
3407  if (end == ptr) {
3408  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3409  return 0;
3410  }
3411  ptr = end;
3412  latitude = strtod(ptr, &end);
3413  if (end == ptr) {
3414  av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
3415  return 0;
3416  }
3417  ptr = end;
3418  altitude = strtod(ptr, &end);
3419  /* If no altitude was present, the default 0 should be fine */
3420  if (*end == '/')
3421  place = end + 1;
3422 
3423  latitude_fix = (int32_t) ((1 << 16) * latitude);
3424  longitude_fix = (int32_t) ((1 << 16) * longitude);
3425  altitude_fix = (int32_t) ((1 << 16) * altitude);
3426 
3427  avio_wb32(pb, 0); /* size */
3428  ffio_wfourcc(pb, "loci"); /* type */
3429  avio_wb32(pb, 0); /* version + flags */
3430  avio_wb16(pb, lang);
3431  avio_write(pb, place, strlen(place) + 1);
3432  avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
3433  avio_wb32(pb, latitude_fix);
3434  avio_wb32(pb, longitude_fix);
3435  avio_wb32(pb, altitude_fix);
3436  avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
3437  avio_w8(pb, 0); /* additional notes, null terminated string */
3438 
3439  return update_size(pb, pos);
3440 }
3441 
3442 /* iTunes track or disc number */
3444  AVFormatContext *s, int disc)
3445 {
3447  disc ? "disc" : "track",
3448  NULL, 0);
3449  int size = 0, track = t ? atoi(t->value) : 0;
3450  if (track) {
3451  int tracks = 0;
3452  char *slash = strchr(t->value, '/');
3453  if (slash)
3454  tracks = atoi(slash + 1);
3455  avio_wb32(pb, 32); /* size */
3456  ffio_wfourcc(pb, disc ? "disk" : "trkn");
3457  avio_wb32(pb, 24); /* size */
3458  ffio_wfourcc(pb, "data");
3459  avio_wb32(pb, 0); // 8 bytes empty
3460  avio_wb32(pb, 0);
3461  avio_wb16(pb, 0); // empty
3462  avio_wb16(pb, track); // track / disc number
3463  avio_wb16(pb, tracks); // total track / disc number
3464  avio_wb16(pb, 0); // empty
3465  size = 32;
3466  }
3467  return size;
3468 }
3469 
3471  const char *name, const char *tag,
3472  int len)
3473 {
3474  AVDictionaryEntry *t = NULL;
3475  uint8_t num;
3476  int size = 24 + len;
3477 
3478  if (len != 1 && len != 4)
3479  return -1;
3480 
3481  if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))
3482  return 0;
3483  num = atoi(t->value);
3484 
3485  avio_wb32(pb, size);
3486  ffio_wfourcc(pb, name);
3487  avio_wb32(pb, size - 8);
3488  ffio_wfourcc(pb, "data");
3489  avio_wb32(pb, 0x15);
3490  avio_wb32(pb, 0);
3491  if (len==4) avio_wb32(pb, num);
3492  else avio_w8 (pb, num);
3493 
3494  return size;
3495 }
3496 
3498 {
3499  MOVMuxContext *mov = s->priv_data;
3500  int64_t pos = 0;
3501  int i;
3502 
3503  for (i = 0; i < s->nb_streams; i++) {
3504  MOVTrack *trk = &mov->tracks[i];
3505 
3506  if (!is_cover_image(trk->st) || trk->cover_image.size <= 0)
3507  continue;
3508 
3509  if (!pos) {
3510  pos = avio_tell(pb);
3511  avio_wb32(pb, 0);
3512  ffio_wfourcc(pb, "covr");
3513  }
3514  avio_wb32(pb, 16 + trk->cover_image.size);
3515  ffio_wfourcc(pb, "data");
3516  avio_wb32(pb, trk->tag);
3517  avio_wb32(pb , 0);
3518  avio_write(pb, trk->cover_image.data, trk->cover_image.size);
3519  }
3520 
3521  return pos ? update_size(pb, pos) : 0;
3522 }
3523 
3524 /* iTunes meta data list */
3526  AVFormatContext *s)
3527 {
3528  int64_t pos = avio_tell(pb);
3529  avio_wb32(pb, 0); /* size */
3530  ffio_wfourcc(pb, "ilst");
3531  mov_write_string_metadata(s, pb, "\251nam", "title" , 1);
3532  mov_write_string_metadata(s, pb, "\251ART", "artist" , 1);
3533  mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
3534  mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
3535  mov_write_string_metadata(s, pb, "\251alb", "album" , 1);
3536  mov_write_string_metadata(s, pb, "\251day", "date" , 1);
3537  if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) {
3538  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3539  mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
3540  }
3541  mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1);
3542  mov_write_string_metadata(s, pb, "\251gen", "genre" , 1);
3543  mov_write_string_metadata(s, pb, "cprt", "copyright", 1);
3544  mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
3545  mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1);
3546  mov_write_string_metadata(s, pb, "desc", "description",1);
3547  mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1);
3548  mov_write_string_metadata(s, pb, "tvsh", "show" , 1);
3549  mov_write_string_metadata(s, pb, "tven", "episode_id",1);
3550  mov_write_string_metadata(s, pb, "tvnn", "network" , 1);
3551  mov_write_string_metadata(s, pb, "keyw", "keywords" , 1);
3552  mov_write_int8_metadata (s, pb, "tves", "episode_sort",4);
3553  mov_write_int8_metadata (s, pb, "tvsn", "season_number",4);
3554  mov_write_int8_metadata (s, pb, "stik", "media_type",1);
3555  mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1);
3556  mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1);
3557  mov_write_int8_metadata (s, pb, "cpil", "compilation", 1);
3558  mov_write_covr(pb, s);
3559  mov_write_trkn_tag(pb, mov, s, 0); // track number
3560  mov_write_trkn_tag(pb, mov, s, 1); // disc number
3561  mov_write_tmpo_tag(pb, s);
3562  return update_size(pb, pos);
3563 }
3564 
3566  AVFormatContext *s)
3567 {
3568  avio_wb32(pb, 33); /* size */
3569  ffio_wfourcc(pb, "hdlr");
3570  avio_wb32(pb, 0);
3571  avio_wb32(pb, 0);
3572  ffio_wfourcc(pb, "mdta");
3573  avio_wb32(pb, 0);
3574  avio_wb32(pb, 0);
3575  avio_wb32(pb, 0);
3576  avio_w8(pb, 0);
3577  return 33;
3578 }
3579 
3581  AVFormatContext *s)
3582 {
3583  AVDictionaryEntry *t = NULL;
3584  int64_t pos = avio_tell(pb);
3585  int64_t curpos, entry_pos;
3586  int count = 0;
3587 
3588  avio_wb32(pb, 0); /* size */
3589  ffio_wfourcc(pb, "keys");
3590  avio_wb32(pb, 0);
3591  entry_pos = avio_tell(pb);
3592  avio_wb32(pb, 0); /* entry count */
3593 
3594  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3595  avio_wb32(pb, strlen(t->key) + 8);
3596  ffio_wfourcc(pb, "mdta");
3597  avio_write(pb, t->key, strlen(t->key));
3598  count += 1;
3599  }
3600  curpos = avio_tell(pb);
3601  avio_seek(pb, entry_pos, SEEK_SET);
3602  avio_wb32(pb, count); // rewrite entry count
3603  avio_seek(pb, curpos, SEEK_SET);
3604 
3605  return update_size(pb, pos);
3606 }
3607 
3609  AVFormatContext *s)
3610 {
3611  AVDictionaryEntry *t = NULL;
3612  int64_t pos = avio_tell(pb);
3613  int count = 1; /* keys are 1-index based */
3614 
3615  avio_wb32(pb, 0); /* size */
3616  ffio_wfourcc(pb, "ilst");
3617 
3618  while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) {
3619  int64_t entry_pos = avio_tell(pb);
3620  avio_wb32(pb, 0); /* size */
3621  avio_wb32(pb, count); /* key */
3622  mov_write_string_data_tag(pb, t->value, 0, 1);
3623  update_size(pb, entry_pos);
3624  count += 1;
3625  }
3626  return update_size(pb, pos);
3627 }
3628 
3629 /* meta data tags */
3631  AVFormatContext *s)
3632 {
3633  int size = 0;
3634  int64_t pos = avio_tell(pb);
3635  avio_wb32(pb, 0); /* size */
3636  ffio_wfourcc(pb, "meta");
3637  avio_wb32(pb, 0);
3638  if (mov->flags & FF_MOV_FLAG_USE_MDTA) {
3639  mov_write_mdta_hdlr_tag(pb, mov, s);
3640  mov_write_mdta_keys_tag(pb, mov, s);
3641  mov_write_mdta_ilst_tag(pb, mov, s);
3642  }
3643  else {
3644  /* iTunes metadata tag */
3645  mov_write_itunes_hdlr_tag(pb, mov, s);
3646  mov_write_ilst_tag(pb, mov, s);
3647  }
3648  size = update_size(pb, pos);
3649  return size;
3650 }
3651 
3653  const char *name, const char *key)
3654 {
3655  int len;
3656  AVDictionaryEntry *t;
3657 
3658  if (!(t = av_dict_get(s->metadata, key, NULL, 0)))
3659  return 0;
3660 
3661  len = strlen(t->value);
3662  if (len > 0) {
3663  int size = len + 8;
3664  avio_wb32(pb, size);
3665  ffio_wfourcc(pb, name);
3666  avio_write(pb, t->value, len);
3667  return size;
3668  }
3669  return 0;
3670 }
3671 
3672 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
3673 {
3674  int val;
3675  while (*b) {
3676  GET_UTF8(val, *b++, return -1;)
3677  avio_wb16(pb, val);
3678  }
3679  avio_wb16(pb, 0x00);
3680  return 0;
3681 }
3682 
3683 static uint16_t language_code(const char *str)
3684 {
3685  return (((str[0] - 0x60) & 0x1F) << 10) +
3686  (((str[1] - 0x60) & 0x1F) << 5) +
3687  (( str[2] - 0x60) & 0x1F);
3688 }
3689 
3691  const char *tag, const char *str)
3692 {
3693  int64_t pos = avio_tell(pb);
3694  AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);
3695  if (!t || !utf8len(t->value))
3696  return 0;
3697  avio_wb32(pb, 0); /* size */
3698  ffio_wfourcc(pb, tag); /* type */
3699  avio_wb32(pb, 0); /* version + flags */
3700  if (!strcmp(tag, "yrrc"))
3701  avio_wb16(pb, atoi(t->value));
3702  else {
3703  avio_wb16(pb, language_code("eng")); /* language */
3704  avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */
3705  if (!strcmp(tag, "albm") &&
3706  (t = av_dict_get(s->metadata, "track", NULL, 0)))
3707  avio_w8(pb, atoi(t->value));
3708  }
3709  return update_size(pb, pos);
3710 }
3711 
3713 {
3714  int64_t pos = avio_tell(pb);
3715  int i, nb_chapters = FFMIN(s->nb_chapters, 255);
3716 
3717  avio_wb32(pb, 0); // size
3718  ffio_wfourcc(pb, "chpl");
3719  avio_wb32(pb, 0x01000000); // version + flags
3720  avio_wb32(pb, 0); // unknown
3721  avio_w8(pb, nb_chapters);
3722 
3723  for (i = 0; i < nb_chapters; i++) {
3724  AVChapter *c = s->chapters[i];
3725  AVDictionaryEntry *t;
3726  avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
3727 
3728  if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
3729  int len = FFMIN(strlen(t->value), 255);
3730  avio_w8(pb, len);
3731  avio_write(pb, t->value, len);
3732  } else
3733  avio_w8(pb, 0);
3734  }
3735  return update_size(pb, pos);
3736 }
3737 
3739  AVFormatContext *s)
3740 {
3741  AVIOContext *pb_buf;
3742  int ret, size;
3743  uint8_t *buf;
3744 
3745  ret = avio_open_dyn_buf(&pb_buf);
3746  if (ret < 0)
3747  return ret;
3748 
3749  if (mov->mode & MODE_3GP) {
3750  mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
3751  mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
3752  mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
3753  mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
3754  mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
3755  mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
3756  mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
3757  mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
3758  mov_write_loci_tag(s, pb_buf);
3759  } 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
3760  mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0);
3761  mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0);
3762  mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0);
3763  mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0);
3764  mov_write_string_metadata(s, pb_buf, "\251day", "date", 0);
3765  mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0);
3766  // currently ignored by mov.c
3767  mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0);
3768  // add support for libquicktime, this atom is also actually read by mov.c
3769  mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0);
3770  mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0);
3771  mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0);
3772  mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0);
3773  mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0);
3774  mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0);
3775  mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0);
3776  mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp");
3777  } else {
3778  /* iTunes meta data */
3779  mov_write_meta_tag(pb_buf, mov, s);
3780  mov_write_loci_tag(s, pb_buf);
3781  }
3782 
3783  if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL))
3784  mov_write_chpl_tag(pb_buf, s);
3785 
3786  if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {
3787  avio_wb32(pb, size + 8);
3788  ffio_wfourcc(pb, "udta");
3789  avio_write(pb, buf, size);
3790  }
3791  av_free(buf);
3792 
3793  return 0;
3794 }
3795 
3797  const char *str, const char *lang, int type)
3798 {
3799  int len = utf8len(str) + 1;
3800  if (len <= 0)
3801  return;
3802  avio_wb16(pb, len * 2 + 10); /* size */
3803  avio_wb32(pb, type); /* type */
3804  avio_wb16(pb, language_code(lang)); /* language */
3805  avio_wb16(pb, 0x01); /* ? */
3806  ascii_to_wc(pb, str);
3807 }
3808 
3810 {
3811  AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
3812  int64_t pos, pos2;
3813 
3814  if (title) {
3815  pos = avio_tell(pb);
3816  avio_wb32(pb, 0); /* size placeholder*/
3817  ffio_wfourcc(pb, "uuid");
3818  ffio_wfourcc(pb, "USMT");
3819  avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
3820  avio_wb32(pb, 0xbb88695c);
3821  avio_wb32(pb, 0xfac9c740);
3822 
3823  pos2 = avio_tell(pb);
3824  avio_wb32(pb, 0); /* size placeholder*/
3825  ffio_wfourcc(pb, "MTDT");
3826  avio_wb16(pb, 4);
3827 
3828  // ?
3829  avio_wb16(pb, 0x0C); /* size */
3830  avio_wb32(pb, 0x0B); /* type */
3831  avio_wb16(pb, language_code("und")); /* language */
3832  avio_wb16(pb, 0x0); /* ? */
3833  avio_wb16(pb, 0x021C); /* data */
3834 
3835  if (!(s->flags & AVFMT_FLAG_BITEXACT))
3836  mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04);
3837  mov_write_psp_udta_tag(pb, title->value, "eng", 0x01);
3838  mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
3839 
3840  update_size(pb, pos2);
3841  return update_size(pb, pos);
3842  }
3843 
3844  return 0;
3845 }
3846 
3847 static void build_chunks(MOVTrack *trk)
3848 {
3849  int i;
3850  MOVIentry *chunk = &trk->cluster[0];
3851  uint64_t chunkSize = chunk->size;
3852  chunk->chunkNum = 1;
3853  if (trk->chunkCount)
3854  return;
3855  trk->chunkCount = 1;
3856  for (i = 1; i<trk->entry; i++){
3857  if (chunk->pos + chunkSize == trk->cluster[i].pos &&
3858  chunkSize + trk->cluster[i].size < (1<<20)){
3859  chunkSize += trk->cluster[i].size;
3860  chunk->samples_in_chunk += trk->cluster[i].entries;
3861  } else {
3862  trk->cluster[i].chunkNum = chunk->chunkNum+1;
3863  chunk=&trk->cluster[i];
3864  chunkSize = chunk->size;
3865  trk->chunkCount++;
3866  }
3867  }
3868 }
3869 
3870 /**
3871  * Assign track ids. If option "use_stream_ids_as_track_ids" is set,
3872  * the stream ids are used as track ids.
3873  *
3874  * This assumes mov->tracks and s->streams are in the same order and
3875  * there are no gaps in either of them (so mov->tracks[n] refers to
3876  * s->streams[n]).
3877  *
3878  * As an exception, there can be more entries in
3879  * s->streams than in mov->tracks, in which case new track ids are
3880  * generated (starting after the largest found stream id).
3881  */
3883 {
3884  int i;
3885 
3886  if (mov->track_ids_ok)
3887  return 0;
3888 
3889  if (mov->use_stream_ids_as_track_ids) {
3890  int next_generated_track_id = 0;
3891  for (i = 0; i < s->nb_streams; i++) {
3892  if (s->streams[i]->id > next_generated_track_id)
3893  next_generated_track_id = s->streams[i]->id;
3894  }
3895 
3896  for (i = 0; i < mov->nb_streams; i++) {
3897  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3898  continue;
3899 
3900  mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id;
3901  }
3902  } else {
3903  for (i = 0; i < mov->nb_streams; i++) {
3904  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3905  continue;
3906 
3907  mov->tracks[i].track_id = i + 1;
3908  }
3909  }
3910 
3911  mov->track_ids_ok = 1;
3912 
3913  return 0;
3914 }
3915 
3917  AVFormatContext *s)
3918 {
3919  int i;
3920  int64_t pos = avio_tell(pb);
3921  avio_wb32(pb, 0); /* size placeholder*/
3922  ffio_wfourcc(pb, "moov");
3923 
3924  mov_setup_track_ids(mov, s);
3925 
3926  for (i = 0; i < mov->nb_streams; i++) {
3927  if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT))
3928  continue;
3929 
3930  mov->tracks[i].time = mov->time;
3931 
3932  if (mov->tracks[i].entry)
3933  build_chunks(&mov->tracks[i]);
3934  }
3935 
3936  if (mov->chapter_track)
3937  for (i = 0; i < s->nb_streams; i++) {
3938  mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
3939  mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id;
3940  }
3941  for (i = 0; i < mov->nb_streams; i++) {
3942  MOVTrack *track = &mov->tracks[i];
3943  if (track->tag == MKTAG('r','t','p',' ')) {
3944  track->tref_tag = MKTAG('h','i','n','t');
3945  track->tref_id = mov->tracks[track->src_track].track_id;
3946  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
3947  int * fallback, size;
3948  fallback = (int*)av_stream_get_side_data(track->st,
3950  &size);
3951  if (fallback != NULL && size == sizeof(int)) {
3952  if (*fallback >= 0 && *fallback < mov->nb_streams) {
3953  track->tref_tag = MKTAG('f','a','l','l');
3954  track->tref_id = mov->tracks[*fallback].track_id;
3955  }
3956  }
3957  }
3958  }
3959  for (i = 0; i < mov->nb_streams; i++) {
3960  if (mov->tracks[i].tag == MKTAG('t','m','c','d')) {
3961  int src_trk = mov->tracks[i].src_track;
3962  mov->tracks[src_trk].tref_tag = mov->tracks[i].tag;
3963  mov->tracks[src_trk].tref_id = mov->tracks[i].track_id;
3964  //src_trk may have a different timescale than the tmcd track
3965  mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration,
3966  mov->tracks[i].timescale,
3967  mov->tracks[src_trk].timescale);
3968  }
3969  }
3970 
3971  mov_write_mvhd_tag(pb, mov);
3972  if (mov->mode != MODE_MOV && !mov->iods_skip)
3973  mov_write_iods_tag(pb, mov);
3974  for (i = 0; i < mov->nb_streams; i++) {
3975  if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT) {
3976  int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
3977  if (ret < 0)
3978  return ret;
3979  }
3980  }
3981  if (mov->flags & FF_MOV_FLAG_FRAGMENT)
3982  mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */
3983 
3984  if (mov->mode == MODE_PSP)
3985  mov_write_uuidusmt_tag(pb, s);
3986  else
3987  mov_write_udta_tag(pb, mov, s);
3988 
3989  return update_size(pb, pos);
3990 }
3991 
3992 static void param_write_int(AVIOContext *pb, const char *name, int value)
3993 {
3994  avio_printf(pb, "<param name=\"%s\" value=\"%d\" valuetype=\"data\"/>\n", name, value);
3995 }
3996 
3997 static void param_write_string(AVIOContext *pb, const char *name, const char *value)
3998 {
3999  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, value);
4000 }
4001 
4002 static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len)
4003 {
4004  char buf[150];
4005  len = FFMIN(sizeof(buf) / 2 - 1, len);
4006  ff_data_to_hex(buf, value, len, 0);
4007  buf[2 * len] = '\0';
4008  avio_printf(pb, "<param name=\"%s\" value=\"%s\" valuetype=\"data\"/>\n", name, buf);
4009 }
4010 
4012 {
4013  int64_t pos = avio_tell(pb);
4014  int i;
4015  int64_t manifest_bit_rate = 0;
4016  AVCPBProperties *props = NULL;
4017 
4018  static const uint8_t uuid[] = {
4019  0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
4020  0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
4021  };
4022 
4023  avio_wb32(pb, 0);
4024  ffio_wfourcc(pb, "uuid");
4025  avio_write(pb, uuid, sizeof(uuid));
4026  avio_wb32(pb, 0);
4027 
4028  avio_printf(pb, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
4029  avio_printf(pb, "<smil xmlns=\"http://www.w3.org/2001/SMIL20/Language\">\n");
4030  avio_printf(pb, "<head>\n");
4031  if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT))
4032  avio_printf(pb, "<meta name=\"creator\" content=\"%s\" />\n",
4034  avio_printf(pb, "</head>\n");
4035  avio_printf(pb, "<body>\n");
4036  avio_printf(pb, "<switch>\n");
4037 
4038  mov_setup_track_ids(mov, s);
4039 
4040  for (i = 0; i < mov->nb_streams; i++) {
4041  MOVTrack *track = &mov->tracks[i];
4042  const char *type;
4043  int track_id = track->track_id;
4044  char track_name_buf[32] = { 0 };
4045 
4046  AVStream *st = track->st;
4047  AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
4048 
4049  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) {
4050  type = "video";
4051  } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
4052  type = "audio";
4053  } else {
4054  continue;
4055  }
4056 
4058 
4059  if (track->par->bit_rate) {
4060  manifest_bit_rate = track->par->bit_rate;
4061  } else if (props) {
4062  manifest_bit_rate = props->max_bitrate;
4063  }
4064 
4065  avio_printf(pb, "<%s systemBitrate=\"%"PRId64"\">\n", type,
4066  manifest_bit_rate);
4067  param_write_int(pb, "systemBitrate", manifest_bit_rate);
4068  param_write_int(pb, "trackID", track_id);
4069  param_write_string(pb, "systemLanguage", lang ? lang->value : "und");
4070 
4071  /* Build track name piece by piece: */
4072  /* 1. track type */
4073  av_strlcat(track_name_buf, type, sizeof(track_name_buf));
4074  /* 2. track language, if available */
4075  if (lang)
4076  av_strlcatf(track_name_buf, sizeof(track_name_buf),
4077  "_%s", lang->value);
4078  /* 3. special type suffix */
4079  /* "_cc" = closed captions, "_ad" = audio_description */
4081  av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf));
4083  av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf));
4084 
4085  param_write_string(pb, "trackName", track_name_buf);
4086 
4087  if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
4088  if (track->par->codec_id == AV_CODEC_ID_H264) {
4089  uint8_t *ptr;
4090  int size = track->par->extradata_size;
4091  if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr,
4092  &size)) {
4093  param_write_hex(pb, "CodecPrivateData",
4094  ptr ? ptr : track->par->extradata,
4095  size);
4096  av_free(ptr);
4097  }
4098  param_write_string(pb, "FourCC", "H264");
4099  } else if (track->par->codec_id == AV_CODEC_ID_VC1) {
4100  param_write_string(pb, "FourCC", "WVC1");
4101  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4102  track->par->extradata_size);
4103  }
4104  param_write_int(pb, "MaxWidth", track->par->width);
4105  param_write_int(pb, "MaxHeight", track->par->height);
4106  param_write_int(pb, "DisplayWidth", track->par->width);
4107  param_write_int(pb, "DisplayHeight", track->par->height);
4108  } else {
4109  if (track->par->codec_id == AV_CODEC_ID_AAC) {
4110  switch (track->par->profile)
4111  {
4112  case FF_PROFILE_AAC_HE_V2:
4113  param_write_string(pb, "FourCC", "AACP");
4114  break;
4115  case FF_PROFILE_AAC_HE:
4116  param_write_string(pb, "FourCC", "AACH");
4117  break;
4118  default:
4119  param_write_string(pb, "FourCC", "AACL");
4120  }
4121  } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) {
4122  param_write_string(pb, "FourCC", "WMAP");
4123  }
4124  param_write_hex(pb, "CodecPrivateData", track->par->extradata,
4125  track->par->extradata_size);
4127  track->par->codec_id));
4128  param_write_int(pb, "Channels", track->par->channels);
4129  param_write_int(pb, "SamplingRate", track->par->sample_rate);
4130  param_write_int(pb, "BitsPerSample", 16);
4131  param_write_int(pb, "PacketSize", track->par->block_align ?
4132  track->par->block_align : 4);
4133  }
4134  avio_printf(pb, "</%s>\n", type);
4135  }
4136  avio_printf(pb, "</switch>\n");
4137  avio_printf(pb, "</body>\n");
4138  avio_printf(pb, "</smil>\n");
4139 
4140  return update_size(pb, pos);
4141 }
4142 
4144 {
4145  avio_wb32(pb, 16);
4146  ffio_wfourcc(pb, "mfhd");
4147  avio_wb32(pb, 0);
4148  avio_wb32(pb, mov->fragments);
4149  return 0;
4150 }
4151 
4152 static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry)
4153 {
4156 }
4157 
4159  MOVTrack *track, int64_t moof_offset)
4160 {
4161  int64_t pos = avio_tell(pb);
4164  if (!track->entry) {
4165  flags |= MOV_TFHD_DURATION_IS_EMPTY;
4166  } else {
4167  flags |= MOV_TFHD_DEFAULT_FLAGS;
4168  }
4170  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4171  if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) {
4172  flags &= ~MOV_TFHD_BASE_DATA_OFFSET;
4174  }
4175 
4176  /* Don't set a default sample size, the silverlight player refuses
4177  * to play files with that set. Don't set a default sample duration,
4178  * WMP freaks out if it is set. Don't set a base data offset, PIFF
4179  * file format says it MUST NOT be set. */
4180  if (track->mode == MODE_ISM)
4183 
4184  avio_wb32(pb, 0); /* size placeholder */
4185  ffio_wfourcc(pb, "tfhd");
4186  avio_w8(pb, 0); /* version */
4187  avio_wb24(pb, flags);
4188 
4189  avio_wb32(pb, track->track_id); /* track-id */
4190  if (flags & MOV_TFHD_BASE_DATA_OFFSET)
4191  avio_wb64(pb, moof_offset);
4192  if (flags & MOV_TFHD_DEFAULT_DURATION) {
4193  track->default_duration = get_cluster_duration(track, 0);
4194  avio_wb32(pb, track->default_duration);
4195  }
4196  if (flags & MOV_TFHD_DEFAULT_SIZE) {
4197  track->default_size = track->entry ? track->cluster[0].size : 1;
4198  avio_wb32(pb, track->default_size);
4199  } else
4200  track->default_size = -1;
4201 
4202  if (flags & MOV_TFHD_DEFAULT_FLAGS) {
4203  /* Set the default flags based on the second sample, if available.
4204  * If the first sample is different, that can be signaled via a separate field. */
4205  if (track->entry > 1)
4206  track->default_sample_flags = get_sample_flags(track, &track->cluster[1]);
4207  else
4208  track->default_sample_flags =
4209  track->par->codec_type == AVMEDIA_TYPE_VIDEO ?
4212  avio_wb32(pb, track->default_sample_flags);
4213  }
4214 
4215  return update_size(pb, pos);
4216 }
4217 
4219  MOVTrack *track, int moof_size,
4220  int first, int end)
4221 {
4222  int64_t pos = avio_tell(pb);
4223  uint32_t flags = MOV_TRUN_DATA_OFFSET;
4224  int i;
4225 
4226  for (i = first; i < end; i++) {
4227  if (get_cluster_duration(track, i) != track->default_duration)
4228  flags |= MOV_TRUN_SAMPLE_DURATION;
4229  if (track->cluster[i].size != track->default_size)
4230  flags |= MOV_TRUN_SAMPLE_SIZE;
4231  if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags)
4232  flags |= MOV_TRUN_SAMPLE_FLAGS;
4233  }
4234  if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 &&
4235  get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags)
4236  flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS;
4237  if (track->flags & MOV_TRACK_CTTS)
4238  flags |= MOV_TRUN_SAMPLE_CTS;
4239 
4240  avio_wb32(pb, 0); /* size placeholder */
4241  ffio_wfourcc(pb, "trun");
4243  avio_w8(pb, 1); /* version */
4244  else
4245  avio_w8(pb, 0); /* version */
4246  avio_wb24(pb, flags);
4247 
4248  avio_wb32(pb, end - first); /* sample count */
4249  if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET &&
4251  !mov->first_trun)
4252  avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */
4253  else
4254  avio_wb32(pb, moof_size + 8 + track->data_offset +
4255  track->cluster[first].pos); /* data offset */
4256  if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS)
4257  avio_wb32(pb, get_sample_flags(track, &track->cluster[first]));
4258 
4259  for (i = first; i < end; i++) {
4260  if (flags & MOV_TRUN_SAMPLE_DURATION)
4261  avio_wb32(pb, get_cluster_duration(track, i));
4262  if (flags & MOV_TRUN_SAMPLE_SIZE)
4263  avio_wb32(pb, track->cluster[i].size);
4264  if (flags & MOV_TRUN_SAMPLE_FLAGS)
4265  avio_wb32(pb, get_sample_flags(track, &track->cluster[i]));
4266  if (flags & MOV_TRUN_SAMPLE_CTS)
4267  avio_wb32(pb, track->cluster[i].cts);
4268  }
4269 
4270  mov->first_trun = 0;
4271  return update_size(pb, pos);
4272 }
4273 
4274 static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track)
4275 {
4276  int64_t pos = avio_tell(pb);
4277  static const uint8_t uuid[] = {
4278  0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
4279  0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2
4280  };
4281 
4282  avio_wb32(pb, 0); /* size placeholder */
4283  ffio_wfourcc(pb, "uuid");
4284  avio_write(pb, uuid, sizeof(uuid));
4285  avio_w8(pb, 1);
4286  avio_wb24(pb, 0);
4287  avio_wb64(pb, track->start_dts + track->frag_start +
4288  track->cluster[0].cts);
4289  avio_wb64(pb, track->end_pts -
4290  (track->cluster[0].dts + track->cluster[0].cts));
4291 
4292  return update_size(pb, pos);
4293 }
4294 
4296  MOVTrack *track, int entry)
4297 {
4298  int n = track->nb_frag_info - 1 - entry, i;
4299  int size = 8 + 16 + 4 + 1 + 16*n;
4300  static const uint8_t uuid[] = {
4301  0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
4302  0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f
4303  };
4304 
4305  if (entry < 0)
4306  return 0;
4307 
4308  avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET);
4309  avio_wb32(pb, size);
4310  ffio_wfourcc(pb, "uuid");
4311  avio_write(pb, uuid, sizeof(uuid));
4312  avio_w8(pb, 1);
4313  avio_wb24(pb, 0);
4314  avio_w8(pb, n);
4315  for (i = 0; i < n; i++) {
4316  int index = entry + 1 + i;
4317  avio_wb64(pb, track->frag_info[index].time);
4318  avio_wb64(pb, track->frag_info[index].duration);
4319  }
4320  if (n < mov->ism_lookahead) {
4321  int free_size = 16 * (mov->ism_lookahead - n);
4322  avio_wb32(pb, free_size);
4323  ffio_wfourcc(pb, "free");
4324  ffio_fill(pb, 0, free_size - 8);
4325  }
4326 
4327  return 0;
4328 }
4329 
4331  MOVTrack *track)
4332 {
4333  int64_t pos = avio_tell(pb);
4334  int i;
4335  for (i = 0; i < mov->ism_lookahead; i++) {
4336  /* Update the tfrf tag for the last ism_lookahead fragments,
4337  * nb_frag_info - 1 is the next fragment to be written. */
4338  mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i);
4339  }
4340  avio_seek(pb, pos, SEEK_SET);
4341  return 0;
4342 }
4343 
4344 static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks,
4345  int size)
4346 {
4347  int i;
4348  for (i = 0; i < mov->nb_streams; i++) {
4349  MOVTrack *track = &mov->tracks[i];
4351  if ((tracks >= 0 && i != tracks) || !track->entry)
4352  continue;
4353  track->nb_frag_info++;
4354  if (track->nb_frag_info >= track->frag_info_capacity) {
4355  unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT;
4356  if (av_reallocp_array(&track->frag_info,
4357  new_capacity,
4358  sizeof(*track->frag_info)))
4359  return AVERROR(ENOMEM);
4360  track->frag_info_capacity = new_capacity;
4361  }
4362  info = &track->frag_info[track->nb_frag_info - 1];
4363  info->offset = avio_tell(pb);
4364  info->size = size;
4365  // Try to recreate the original pts for the first packet
4366  // from the fields we have stored
4367  info->time = track->start_dts + track->frag_start +
4368  track->cluster[0].cts;
4369  info->duration = track->end_pts -
4370  (track->cluster[0].dts + track->cluster[0].cts);
4371  // If the pts is less than zero, we will have trimmed
4372  // away parts of the media track using an edit list,
4373  // and the corresponding start presentation time is zero.
4374  if (info->time < 0) {
4375  info->duration += info->time;
4376  info->time = 0;
4377  }
4378  info->tfrf_offset = 0;
4379  mov_write_tfrf_tags(pb, mov, track);
4380  }
4381  return 0;
4382 }
4383 
4384 static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max)
4385 {
4386  int i;
4387  for (i = 0; i < mov->nb_streams; i++) {
4388  MOVTrack *track = &mov->tracks[i];
4389  if ((tracks >= 0 && i != tracks) || !track->entry)
4390  continue;
4391  if (track->nb_frag_info > max) {
4392  memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info));
4393  track->nb_frag_info = max;
4394  }
4395  }
4396 }
4397 
4398 static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track)
4399 {
4400  int64_t pos = avio_tell(pb);
4401 
4402  avio_wb32(pb, 0); /* size */
4403  ffio_wfourcc(pb, "tfdt");
4404  avio_w8(pb, 1); /* version */
4405  avio_wb24(pb, 0);
4406  avio_wb64(pb, track->frag_start);
4407  return update_size(pb, pos);
4408 }
4409 
4411  MOVTrack *track, int64_t moof_offset,
4412  int moof_size)
4413 {
4414  int64_t pos = avio_tell(pb);
4415  int i, start = 0;
4416  avio_wb32(pb, 0); /* size placeholder */
4417  ffio_wfourcc(pb, "traf");
4418 
4419  mov_write_tfhd_tag(pb, mov, track, moof_offset);
4420  if (mov->mode !=