ILIAS  release_5-1 Revision 5.0.0-5477-g43f3e3fab5f
Public Member Functions | Static Public Member Functions | Data Fields | Private Member Functions
getid3_flac Class Reference

http://flac.sourceforge.net/format.html More...

+ Inheritance diagram for getid3_flac:
+ Collaboration diagram for getid3_flac:

Public Member Functions

 getid3_flac (&$fd, &$ThisFileInfo)
 
 FLACparseMETAdata (&$fd, &$ThisFileInfo)
 
 FLACmetaBlockTypeLookup ($blocktype)
 
 FLACapplicationIDLookup ($applicationid)
 
 FLACparseSTREAMINFO ($METAdataBlockData, &$ThisFileInfo)
 
 FLACparseAPPLICATION ($METAdataBlockData, &$ThisFileInfo)
 
 FLACparseSEEKTABLE ($METAdataBlockData, &$ThisFileInfo)
 
 FLACparseCUESHEET ($METAdataBlockData, &$ThisFileInfo)
 
 Analyze ()
 
 parseMETAdata ()
 
 parsePICTURE ()
 Parse METADATA_BLOCK_PICTURE flac structure and extract attachment External usage: audio.ogg. More...
 
- Public Member Functions inherited from getid3_handler
 __construct (getID3 $getid3, $call_module=null)
 
 Analyze ()
 
 AnalyzeString ($string)
 
 setStringMode ($string)
 
 saveAttachment ($name, $offset, $length, $image_mime=null)
 

Static Public Member Functions

static metaBlockTypeLookup ($blocktype)
 
static applicationIDLookup ($applicationid)
 
static pictureTypeLookup ($type_id)
 

Data Fields

const syncword = 'fLaC'
 

Private Member Functions

 parseSTREAMINFO ($BlockData)
 
 parseAPPLICATION ($BlockData)
 
 parseSEEKTABLE ($BlockData)
 
 parseVORBIS_COMMENT ($BlockData)
 
 parseCUESHEET ($BlockData)
 

Additional Inherited Members

- Protected Member Functions inherited from getid3_handler
 ftell ()
 
 fread ($bytes)
 
 fseek ($bytes, $whence=SEEK_SET)
 
 feof ()
 
 isDependencyFor ($module)
 
 error ($text)
 
 warning ($text)
 
 notice ($text)
 
- Protected Attributes inherited from getid3_handler
 $getid3
 
 $data_string_flag = false
 
 $data_string = ''
 
 $data_string_position = 0
 
 $data_string_length = 0
 

Detailed Description

http://flac.sourceforge.net/format.html

Definition at line 19 of file module.audio.flac.php.

Member Function Documentation

◆ Analyze()

getid3_flac::Analyze ( )

Definition at line 27 of file module.audio.flac.php.

References $info, getid3_handler\error(), getid3_handler\fread(), getid3_handler\fseek(), parseMETAdata(), and getid3_lib\PrintHexBytes().

27  {
28  $info = &$this->getid3->info;
29 
30  $this->fseek($info['avdataoffset']);
31  $StreamMarker = $this->fread(4);
32  if ($StreamMarker != self::syncword) {
33  return $this->error('Expecting "'.getid3_lib::PrintHexBytes(self::syncword).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($StreamMarker).'"');
34  }
35  $info['fileformat'] = 'flac';
36  $info['audio']['dataformat'] = 'flac';
37  $info['audio']['bitrate_mode'] = 'vbr';
38  $info['audio']['lossless'] = true;
39 
40  // parse flac container
41  return $this->parseMETAdata();
42  }
getid3_handler\error
error($text)
Definition: getid3.php:1738
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_flac\parseMETAdata
parseMETAdata()
Definition: module.audio.flac.php:44
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
getid3_lib\PrintHexBytes
PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true)
Definition: getid3.lib.php:17
+ Here is the call graph for this function:

◆ applicationIDLookup()

static getid3_flac::applicationIDLookup (   $applicationid)
static

Definition at line 396 of file module.audio.flac.php.

396  {
397  // http://flac.sourceforge.net/id.html
398  static $lookup = array(
399  0x41544348 => 'FlacFile', // "ATCH"
400  0x42534F4C => 'beSolo', // "BSOL"
401  0x42554753 => 'Bugs Player', // "BUGS"
402  0x43756573 => 'GoldWave cue points (specification)', // "Cues"
403  0x46696361 => 'CUE Splitter', // "Fica"
404  0x46746F6C => 'flac-tools', // "Ftol"
405  0x4D4F5442 => 'MOTB MetaCzar', // "MOTB"
406  0x4D505345 => 'MP3 Stream Editor', // "MPSE"
407  0x4D754D4C => 'MusicML: Music Metadata Language', // "MuML"
408  0x52494646 => 'Sound Devices RIFF chunk storage', // "RIFF"
409  0x5346464C => 'Sound Font FLAC', // "SFFL"
410  0x534F4E59 => 'Sony Creative Software', // "SONY"
411  0x5351455A => 'flacsqueeze', // "SQEZ"
412  0x54745776 => 'TwistedWave', // "TtWv"
413  0x55495453 => 'UITS Embedding tools', // "UITS"
414  0x61696666 => 'FLAC AIFF chunk storage', // "aiff"
415  0x696D6167 => 'flac-image application for storing arbitrary files in APPLICATION metadata blocks', // "imag"
416  0x7065656D => 'Parseable Embedded Extensible Metadata (specification)', // "peem"
417  0x71667374 => 'QFLAC Studio', // "qfst"
418  0x72696666 => 'FLAC RIFF chunk storage', // "riff"
419  0x74756E65 => 'TagTuner', // "tune"
420  0x78626174 => 'XBAT', // "xbat"
421  0x786D6364 => 'xmcd', // "xmcd"
422  );
423  return (isset($lookup[$applicationid]) ? $lookup[$applicationid] : 'reserved');
424  }

◆ FLACapplicationIDLookup()

getid3_flac::FLACapplicationIDLookup (   $applicationid)

Definition at line 170 of file module.audio.flac.php.

Referenced by FLACparseAPPLICATION().

170  {
171  static $FLACapplicationIDLookup = array();
172  if (empty($FLACapplicationIDLookup)) {
173  // http://flac.sourceforge.net/id.html
174  $FLACapplicationIDLookup[0x46746F6C] = 'flac-tools'; // 'Ftol'
175  $FLACapplicationIDLookup[0x46746F6C] = 'Sound Font FLAC'; // 'SFFL'
176  }
177  return (isset($FLACapplicationIDLookup[$applicationid]) ? $FLACapplicationIDLookup[$applicationid] : 'reserved');
178  }
+ Here is the caller graph for this function:

◆ FLACmetaBlockTypeLookup()

getid3_flac::FLACmetaBlockTypeLookup (   $blocktype)

Definition at line 157 of file module.audio.flac.php.

Referenced by FLACparseMETAdata().

157  {
158  static $FLACmetaBlockTypeLookup = array();
159  if (empty($FLACmetaBlockTypeLookup)) {
160  $FLACmetaBlockTypeLookup[0] = 'STREAMINFO';
161  $FLACmetaBlockTypeLookup[1] = 'PADDING';
162  $FLACmetaBlockTypeLookup[2] = 'APPLICATION';
163  $FLACmetaBlockTypeLookup[3] = 'SEEKTABLE';
164  $FLACmetaBlockTypeLookup[4] = 'VORBIS_COMMENT';
165  $FLACmetaBlockTypeLookup[5] = 'CUESHEET';
166  }
167  return (isset($FLACmetaBlockTypeLookup[$blocktype]) ? $FLACmetaBlockTypeLookup[$blocktype] : 'reserved');
168  }
+ Here is the caller graph for this function:

◆ FLACparseAPPLICATION()

getid3_flac::FLACparseAPPLICATION (   $METAdataBlockData,
&  $ThisFileInfo 
)

Definition at line 220 of file module.audio.flac.php.

References getid3_lib\BigEndian2Int(), and FLACapplicationIDLookup().

Referenced by FLACparseMETAdata().

220  {
221  $offset = 0;
222  $ApplicationID = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 4));
223  $offset += 4;
224  $ThisFileInfo['flac']['APPLICATION'][$ApplicationID]['name'] = getid3_flac::FLACapplicationIDLookup($ApplicationID);
225  $ThisFileInfo['flac']['APPLICATION'][$ApplicationID]['data'] = substr($METAdataBlockData, $offset);
226  $offset = $METAdataBlockLength;
227 
228  return true;
229  }
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_flac\FLACapplicationIDLookup
FLACapplicationIDLookup($applicationid)
Definition: module.audio.flac.php:170
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ FLACparseCUESHEET()

getid3_flac::FLACparseCUESHEET (   $METAdataBlockData,
&  $ThisFileInfo 
)

Definition at line 258 of file module.audio.flac.php.

References getid3_lib\BigEndian2Int().

Referenced by FLACparseMETAdata().

258  {
259  $offset = 0;
260  $ThisFileInfo['flac']['CUESHEET']['media_catalog_number'] = trim(substr($METAdataBlockData, $offset, 128), "\0");
261  $offset += 128;
262  $ThisFileInfo['flac']['CUESHEET']['lead_in_samples'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 8));
263  $offset += 8;
264  $ThisFileInfo['flac']['CUESHEET']['flags']['is_cd'] = (bool) (getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1)) & 0x80);
265  $offset += 1;
266 
267  $offset += 258; // reserved
268 
269  $ThisFileInfo['flac']['CUESHEET']['number_tracks'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1));
270  $offset += 1;
271 
272  for ($track = 0; $track < $ThisFileInfo['flac']['CUESHEET']['number_tracks']; $track++) {
273  $TrackSampleOffset = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 8));
274  $offset += 8;
275  $TrackNumber = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1));
276  $offset += 1;
277 
278  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['sample_offset'] = $TrackSampleOffset;
279 
280  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['isrc'] = substr($METAdataBlockData, $offset, 12);
281  $offset += 12;
282 
283  $TrackFlagsRaw = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1));
284  $offset += 1;
285  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['flags']['is_audio'] = (bool) ($TrackFlagsRaw & 0x80);
286  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['flags']['pre_emphasis'] = (bool) ($TrackFlagsRaw & 0x40);
287 
288  $offset += 13; // reserved
289 
290  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['index_points'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1));
291  $offset += 1;
292 
293  for ($index = 0; $index < $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['index_points']; $index++) {
294  $IndexSampleOffset = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 8));
295  $offset += 8;
296  $IndexNumber = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 1));
297  $offset += 1;
298 
299  $offset += 3; // reserved
300 
301  $ThisFileInfo['flac']['CUESHEET']['tracks'][$TrackNumber]['indexes'][$IndexNumber] = $IndexSampleOffset;
302  }
303  }
304  return true;
305  }
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ FLACparseMETAdata()

getid3_flac::FLACparseMETAdata ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 40 of file module.audio.flac.php.

References getid3_lib\BigEndian2Int(), FLACmetaBlockTypeLookup(), FLACparseAPPLICATION(), FLACparseCUESHEET(), FLACparseSEEKTABLE(), FLACparseSTREAMINFO(), getid3_handler\fread(), getid3_handler\fseek(), getid3_handler\ftell(), and getid3_ogg\ParseVorbisCommentsFilepointer().

Referenced by getid3_flac(), and getid3_ogg\getid3_ogg().

40  {
41 
42  do {
43  $METAdataBlockOffset = ftell($fd);
44  $METAdataBlockHeader = fread($fd, 4);
45  $METAdataLastBlockFlag = (bool) (getid3_lib::BigEndian2Int(substr($METAdataBlockHeader, 0, 1)) & 0x80);
46  $METAdataBlockType = getid3_lib::BigEndian2Int(substr($METAdataBlockHeader, 0, 1)) & 0x7F;
47  $METAdataBlockLength = getid3_lib::BigEndian2Int(substr($METAdataBlockHeader, 1, 3));
48  $METAdataBlockTypeText = getid3_flac::FLACmetaBlockTypeLookup($METAdataBlockType);
49 
50  if ($METAdataBlockLength < 0) {
51  $ThisFileInfo['error'][] = 'corrupt or invalid METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$METAdataBlockType.') at offset '.$METAdataBlockOffset;
52  break;
53  }
54 
55  $ThisFileInfo['flac'][$METAdataBlockTypeText]['raw'] = array();
56  $ThisFileInfo_flac_METAdataBlockTypeText_raw = &$ThisFileInfo['flac'][$METAdataBlockTypeText]['raw'];
57 
58  $ThisFileInfo_flac_METAdataBlockTypeText_raw['offset'] = $METAdataBlockOffset;
59  $ThisFileInfo_flac_METAdataBlockTypeText_raw['last_meta_block'] = $METAdataLastBlockFlag;
60  $ThisFileInfo_flac_METAdataBlockTypeText_raw['block_type'] = $METAdataBlockType;
61  $ThisFileInfo_flac_METAdataBlockTypeText_raw['block_type_text'] = $METAdataBlockTypeText;
62  $ThisFileInfo_flac_METAdataBlockTypeText_raw['block_length'] = $METAdataBlockLength;
63  $ThisFileInfo_flac_METAdataBlockTypeText_raw['block_data'] = @fread($fd, $METAdataBlockLength);
64  $ThisFileInfo['avdataoffset'] = ftell($fd);
65 
66  switch ($METAdataBlockTypeText) {
67 
68  case 'STREAMINFO':
69  if (!getid3_flac::FLACparseSTREAMINFO($ThisFileInfo_flac_METAdataBlockTypeText_raw['block_data'], $ThisFileInfo)) {
70  return false;
71  }
72  break;
73 
74  case 'PADDING':
75  // ignore
76  break;
77 
78  case 'APPLICATION':
79  if (!getid3_flac::FLACparseAPPLICATION($ThisFileInfo_flac_METAdataBlockTypeText_raw['block_data'], $ThisFileInfo)) {
80  return false;
81  }
82  break;
83 
84  case 'SEEKTABLE':
85  if (!getid3_flac::FLACparseSEEKTABLE($ThisFileInfo_flac_METAdataBlockTypeText_raw['block_data'], $ThisFileInfo)) {
86  return false;
87  }
88  break;
89 
90  case 'VORBIS_COMMENT':
91  $OldOffset = ftell($fd);
92  fseek($fd, 0 - $METAdataBlockLength, SEEK_CUR);
93  getid3_ogg::ParseVorbisCommentsFilepointer($fd, $ThisFileInfo);
94  fseek($fd, $OldOffset, SEEK_SET);
95  break;
96 
97  case 'CUESHEET':
98  if (!getid3_flac::FLACparseCUESHEET($ThisFileInfo_flac_METAdataBlockTypeText_raw['block_data'], $ThisFileInfo)) {
99  return false;
100  }
101  break;
102 
103  default:
104  $ThisFileInfo['warning'][] = 'Unhandled METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$METAdataBlockType.') at offset '.$METAdataBlockOffset;
105  break;
106  }
107 
108  } while ($METAdataLastBlockFlag === false);
109 
110 
111  if (isset($ThisFileInfo['flac']['STREAMINFO'])) {
112  $ThisFileInfo['flac']['compressed_audio_bytes'] = $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'];
113  $ThisFileInfo['flac']['uncompressed_audio_bytes'] = $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] * $ThisFileInfo['flac']['STREAMINFO']['channels'] * ($ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'] / 8);
114  if ($ThisFileInfo['flac']['uncompressed_audio_bytes'] == 0) {
115  $ThisFileInfo['error'][] = 'Corrupt FLAC file: uncompressed_audio_bytes == zero';
116  return false;
117  }
118  $ThisFileInfo['flac']['compression_ratio'] = $ThisFileInfo['flac']['compressed_audio_bytes'] / $ThisFileInfo['flac']['uncompressed_audio_bytes'];
119  }
120 
121  // set md5_data_source - built into flac 0.5+
122  if (isset($ThisFileInfo['flac']['STREAMINFO']['audio_signature'])) {
123 
124  if ($ThisFileInfo['flac']['STREAMINFO']['audio_signature'] === str_repeat("\x00", 16)) {
125 
126  $ThisFileInfo['warning'][] = 'FLAC STREAMINFO.audio_signature is null (known issue with libOggFLAC)';
127 
128  } else {
129 
130  $ThisFileInfo['md5_data_source'] = '';
131  $md5 = $ThisFileInfo['flac']['STREAMINFO']['audio_signature'];
132  for ($i = 0; $i < strlen($md5); $i++) {
133  $ThisFileInfo['md5_data_source'] .= str_pad(dechex(ord($md5{$i})), 2, '00', STR_PAD_LEFT);
134  }
135  if (!preg_match('/^[0-9a-f]{32}$/', $ThisFileInfo['md5_data_source'])) {
136  unset($ThisFileInfo['md5_data_source']);
137  }
138 
139  }
140 
141  }
142 
143  $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'];
144  if ($ThisFileInfo['audio']['bits_per_sample'] == 8) {
145  // special case
146  // must invert sign bit on all data bytes before MD5'ing to match FLAC's calculated value
147  // MD5sum calculates on unsigned bytes, but FLAC calculated MD5 on 8-bit audio data as signed
148  $ThisFileInfo['warning'][] = 'FLAC calculates MD5 data strangely on 8-bit audio, so the stored md5_data_source value will not match the decoded WAV file';
149  }
150  if (!empty($ThisFileInfo['ogg']['vendor'])) {
151  $ThisFileInfo['audio']['encoder'] = $ThisFileInfo['ogg']['vendor'];
152  }
153 
154  return true;
155  }
getid3_ogg\ParseVorbisCommentsFilepointer
ParseVorbisCommentsFilepointer(&$fd, &$ThisFileInfo)
Definition: module.audio.ogg.php:313
getid3_flac\FLACparseCUESHEET
FLACparseCUESHEET($METAdataBlockData, &$ThisFileInfo)
Definition: module.audio.flac.php:258
getid3_flac\FLACparseSEEKTABLE
FLACparseSEEKTABLE($METAdataBlockData, &$ThisFileInfo)
Definition: module.audio.flac.php:232
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_flac\FLACmetaBlockTypeLookup
FLACmetaBlockTypeLookup($blocktype)
Definition: module.audio.flac.php:157
getid3_flac\FLACparseSTREAMINFO
FLACparseSTREAMINFO($METAdataBlockData, &$ThisFileInfo)
Definition: module.audio.flac.php:180
getid3_flac\FLACparseAPPLICATION
FLACparseAPPLICATION($METAdataBlockData, &$ThisFileInfo)
Definition: module.audio.flac.php:220
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
getid3_handler\ftell
ftell()
Definition: getid3.php:1678
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ FLACparseSEEKTABLE()

getid3_flac::FLACparseSEEKTABLE (   $METAdataBlockData,
&  $ThisFileInfo 
)

Definition at line 232 of file module.audio.flac.php.

References getid3_lib\BigEndian2Int().

Referenced by FLACparseMETAdata().

232  {
233  $offset = 0;
234  $METAdataBlockLength = strlen($METAdataBlockData);
235  $placeholderpattern = str_repeat("\xFF", 8);
236  while ($offset < $METAdataBlockLength) {
237  $SampleNumberString = substr($METAdataBlockData, $offset, 8);
238  $offset += 8;
239  if ($SampleNumberString == $placeholderpattern) {
240 
241  // placeholder point
242  @$ThisFileInfo['flac']['SEEKTABLE']['placeholders']++;
243  $offset += 10;
244 
245  } else {
246 
247  $SampleNumber = getid3_lib::BigEndian2Int($SampleNumberString);
248  $ThisFileInfo['flac']['SEEKTABLE'][$SampleNumber]['offset'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 8));
249  $offset += 8;
250  $ThisFileInfo['flac']['SEEKTABLE'][$SampleNumber]['samples'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 2));
251  $offset += 2;
252 
253  }
254  }
255  return true;
256  }
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ FLACparseSTREAMINFO()

getid3_flac::FLACparseSTREAMINFO (   $METAdataBlockData,
&  $ThisFileInfo 
)

Definition at line 180 of file module.audio.flac.php.

References getid3_lib\BigEndian2Bin(), getid3_lib\BigEndian2Int(), and getid3_lib\Bin2Dec().

Referenced by FLACparseMETAdata().

180  {
181  $offset = 0;
182  $ThisFileInfo['flac']['STREAMINFO']['min_block_size'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 2));
183  $offset += 2;
184  $ThisFileInfo['flac']['STREAMINFO']['max_block_size'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 2));
185  $offset += 2;
186  $ThisFileInfo['flac']['STREAMINFO']['min_frame_size'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 3));
187  $offset += 3;
188  $ThisFileInfo['flac']['STREAMINFO']['max_frame_size'] = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 3));
189  $offset += 3;
190 
191  $SampleRateChannelsSampleBitsStreamSamples = getid3_lib::BigEndian2Bin(substr($METAdataBlockData, $offset, 8));
192  $ThisFileInfo['flac']['STREAMINFO']['sample_rate'] = getid3_lib::Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 0, 20));
193  $ThisFileInfo['flac']['STREAMINFO']['channels'] = getid3_lib::Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 20, 3)) + 1;
194  $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'] = getid3_lib::Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 23, 5)) + 1;
195  $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] = getid3_lib::Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 28, 36));
196  $offset += 8;
197 
198  $ThisFileInfo['flac']['STREAMINFO']['audio_signature'] = substr($METAdataBlockData, $offset, 16);
199  $offset += 16;
200 
201  if (!empty($ThisFileInfo['flac']['STREAMINFO']['sample_rate'])) {
202 
203  $ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
204  $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['flac']['STREAMINFO']['sample_rate'];
205  $ThisFileInfo['audio']['channels'] = $ThisFileInfo['flac']['STREAMINFO']['channels'];
206  $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'];
207  $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] / $ThisFileInfo['flac']['STREAMINFO']['sample_rate'];
208  $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8) / $ThisFileInfo['playtime_seconds'];
209 
210  } else {
211 
212  $ThisFileInfo['error'][] = 'Corrupt METAdata block: STREAMINFO';
213  return false;
214 
215  }
216  return true;
217  }
getid3_lib\Bin2Dec
Bin2Dec($binstring, $signed=false)
Definition: getid3.lib.php:316
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_lib\BigEndian2Bin
BigEndian2Bin($byteword)
Definition: getid3.lib.php:271
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ getid3_flac()

getid3_flac::getid3_flac ( &  $fd,
&  $ThisFileInfo 
)

Definition at line 22 of file module.audio.flac.php.

References FLACparseMETAdata(), getid3_handler\fread(), and getid3_handler\fseek().

22  {
23  // http://flac.sourceforge.net/format.html
24 
25  fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
26  $StreamMarker = fread($fd, 4);
27  if ($StreamMarker != 'fLaC') {
28  $ThisFileInfo['error'][] = 'Expecting "fLaC" at offset '.$ThisFileInfo['avdataoffset'].', found "'.$StreamMarker.'"';
29  return false;
30  }
31  $ThisFileInfo['fileformat'] = 'flac';
32  $ThisFileInfo['audio']['dataformat'] = 'flac';
33  $ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
34  $ThisFileInfo['audio']['lossless'] = true;
35 
36  return getid3_flac::FLACparseMETAdata($fd, $ThisFileInfo);
37  }
getid3_flac\FLACparseMETAdata
FLACparseMETAdata(&$fd, &$ThisFileInfo)
Definition: module.audio.flac.php:40
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_handler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: getid3.php:1697
+ Here is the call graph for this function:

◆ metaBlockTypeLookup()

static getid3_flac::metaBlockTypeLookup (   $blocktype)
static

Definition at line 383 of file module.audio.flac.php.

383  {
384  static $lookup = array(
385  0 => 'STREAMINFO',
386  1 => 'PADDING',
387  2 => 'APPLICATION',
388  3 => 'SEEKTABLE',
389  4 => 'VORBIS_COMMENT',
390  5 => 'CUESHEET',
391  6 => 'PICTURE',
392  );
393  return (isset($lookup[$blocktype]) ? $lookup[$blocktype] : 'reserved');
394  }

◆ parseAPPLICATION()

getid3_flac::parseAPPLICATION (   $BlockData)
private

Definition at line 239 of file module.audio.flac.php.

References $info, and getid3_lib\BigEndian2Int().

Referenced by parseMETAdata().

239  {
240  $info = &$this->getid3->info;
241 
242  $ApplicationID = getid3_lib::BigEndian2Int(substr($BlockData, 0, 4));
243  $info['flac']['APPLICATION'][$ApplicationID]['name'] = self::applicationIDLookup($ApplicationID);
244  $info['flac']['APPLICATION'][$ApplicationID]['data'] = substr($BlockData, 4);
245 
246  return true;
247  }
$info
$info
Definition: example_052.php:80
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parseCUESHEET()

getid3_flac::parseCUESHEET (   $BlockData)
private

Definition at line 297 of file module.audio.flac.php.

References $info, and getid3_lib\BigEndian2Int().

Referenced by parseMETAdata().

297  {
298  $info = &$this->getid3->info;
299  $offset = 0;
300  $info['flac']['CUESHEET']['media_catalog_number'] = trim(substr($BlockData, $offset, 128), "\0");
301  $offset += 128;
302  $info['flac']['CUESHEET']['lead_in_samples'] = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 8));
303  $offset += 8;
304  $info['flac']['CUESHEET']['flags']['is_cd'] = (bool) (getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1)) & 0x80);
305  $offset += 1;
306 
307  $offset += 258; // reserved
308 
309  $info['flac']['CUESHEET']['number_tracks'] = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1));
310  $offset += 1;
311 
312  for ($track = 0; $track < $info['flac']['CUESHEET']['number_tracks']; $track++) {
313  $TrackSampleOffset = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 8));
314  $offset += 8;
315  $TrackNumber = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1));
316  $offset += 1;
317 
318  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['sample_offset'] = $TrackSampleOffset;
319 
320  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['isrc'] = substr($BlockData, $offset, 12);
321  $offset += 12;
322 
323  $TrackFlagsRaw = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1));
324  $offset += 1;
325  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['flags']['is_audio'] = (bool) ($TrackFlagsRaw & 0x80);
326  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['flags']['pre_emphasis'] = (bool) ($TrackFlagsRaw & 0x40);
327 
328  $offset += 13; // reserved
329 
330  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['index_points'] = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1));
331  $offset += 1;
332 
333  for ($index = 0; $index < $info['flac']['CUESHEET']['tracks'][$TrackNumber]['index_points']; $index++) {
334  $IndexSampleOffset = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 8));
335  $offset += 8;
336  $IndexNumber = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 1));
337  $offset += 1;
338 
339  $offset += 3; // reserved
340 
341  $info['flac']['CUESHEET']['tracks'][$TrackNumber]['indexes'][$IndexNumber] = $IndexSampleOffset;
342  }
343  }
344 
345  return true;
346  }
$info
$info
Definition: example_052.php:80
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parseMETAdata()

getid3_flac::parseMETAdata ( )

Definition at line 44 of file module.audio.flac.php.

References $info, getID3\ATTACHMENTS_NONE, getid3_lib\BigEndian2Int(), getid3_handler\error(), getid3_handler\fread(), getid3_handler\ftell(), getid3_handler\isDependencyFor(), parseAPPLICATION(), parseCUESHEET(), parsePICTURE(), parseSEEKTABLE(), parseSTREAMINFO(), parseVORBIS_COMMENT(), and getid3_handler\warning().

Referenced by Analyze().

44  {
45  $info = &$this->getid3->info;
46  do {
47  $BlockOffset = $this->ftell();
48  $BlockHeader = $this->fread(4);
49  $LBFBT = getid3_lib::BigEndian2Int(substr($BlockHeader, 0, 1));
50  $LastBlockFlag = (bool) ($LBFBT & 0x80);
51  $BlockType = ($LBFBT & 0x7F);
52  $BlockLength = getid3_lib::BigEndian2Int(substr($BlockHeader, 1, 3));
53  $BlockTypeText = self::metaBlockTypeLookup($BlockType);
54 
55  if (($BlockOffset + 4 + $BlockLength) > $info['avdataend']) {
56  $this->error('METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$BlockTypeText.') at offset '.$BlockOffset.' extends beyond end of file');
57  break;
58  }
59  if ($BlockLength < 1) {
60  $this->error('METADATA_BLOCK_HEADER.BLOCK_LENGTH ('.$BlockLength.') at offset '.$BlockOffset.' is invalid');
61  break;
62  }
63 
64  $info['flac'][$BlockTypeText]['raw'] = array();
65  $BlockTypeText_raw = &$info['flac'][$BlockTypeText]['raw'];
66 
67  $BlockTypeText_raw['offset'] = $BlockOffset;
68  $BlockTypeText_raw['last_meta_block'] = $LastBlockFlag;
69  $BlockTypeText_raw['block_type'] = $BlockType;
70  $BlockTypeText_raw['block_type_text'] = $BlockTypeText;
71  $BlockTypeText_raw['block_length'] = $BlockLength;
72  if ($BlockTypeText_raw['block_type'] != 0x06) { // do not read attachment data automatically
73  $BlockTypeText_raw['block_data'] = $this->fread($BlockLength);
74  }
75 
76  switch ($BlockTypeText) {
77  case 'STREAMINFO': // 0x00
78  if (!$this->parseSTREAMINFO($BlockTypeText_raw['block_data'])) {
79  return false;
80  }
81  break;
82 
83  case 'PADDING': // 0x01
84  unset($info['flac']['PADDING']); // ignore
85  break;
86 
87  case 'APPLICATION': // 0x02
88  if (!$this->parseAPPLICATION($BlockTypeText_raw['block_data'])) {
89  return false;
90  }
91  break;
92 
93  case 'SEEKTABLE': // 0x03
94  if (!$this->parseSEEKTABLE($BlockTypeText_raw['block_data'])) {
95  return false;
96  }
97  break;
98 
99  case 'VORBIS_COMMENT': // 0x04
100  if (!$this->parseVORBIS_COMMENT($BlockTypeText_raw['block_data'])) {
101  return false;
102  }
103  break;
104 
105  case 'CUESHEET': // 0x05
106  if (!$this->parseCUESHEET($BlockTypeText_raw['block_data'])) {
107  return false;
108  }
109  break;
110 
111  case 'PICTURE': // 0x06
112  if (!$this->parsePICTURE()) {
113  return false;
114  }
115  break;
116 
117  default:
118  $this->warning('Unhandled METADATA_BLOCK_HEADER.BLOCK_TYPE ('.$BlockType.') at offset '.$BlockOffset);
119  }
120 
121  unset($info['flac'][$BlockTypeText]['raw']);
122  $info['avdataoffset'] = $this->ftell();
123  }
124  while ($LastBlockFlag === false);
125 
126  // handle tags
127  if (!empty($info['flac']['VORBIS_COMMENT']['comments'])) {
128  $info['flac']['comments'] = $info['flac']['VORBIS_COMMENT']['comments'];
129  }
130  if (!empty($info['flac']['VORBIS_COMMENT']['vendor'])) {
131  $info['audio']['encoder'] = str_replace('reference ', '', $info['flac']['VORBIS_COMMENT']['vendor']);
132  }
133 
134  // copy attachments to 'comments' array if nesesary
135  if (isset($info['flac']['PICTURE']) && ($this->getid3->option_save_attachments !== getID3::ATTACHMENTS_NONE)) {
136  foreach ($info['flac']['PICTURE'] as $entry) {
137  if (!empty($entry['data'])) {
138  if (!isset($info['flac']['comments']['picture'])) {
139  $info['flac']['comments']['picture'] = array();
140  }
141  $comments_picture_data = array();
142  foreach (array('data', 'image_mime', 'image_width', 'image_height', 'imagetype', 'picturetype', 'description', 'datalength') as $picture_key) {
143  if (isset($entry[$picture_key])) {
144  $comments_picture_data[$picture_key] = $entry[$picture_key];
145  }
146  }
147  $info['flac']['comments']['picture'][] = $comments_picture_data;
148  unset($comments_picture_data);
149  }
150  }
151  }
152 
153  if (isset($info['flac']['STREAMINFO'])) {
154  if (!$this->isDependencyFor('matroska')) {
155  $info['flac']['compressed_audio_bytes'] = $info['avdataend'] - $info['avdataoffset'];
156  }
157  $info['flac']['uncompressed_audio_bytes'] = $info['flac']['STREAMINFO']['samples_stream'] * $info['flac']['STREAMINFO']['channels'] * ($info['flac']['STREAMINFO']['bits_per_sample'] / 8);
158  if ($info['flac']['uncompressed_audio_bytes'] == 0) {
159  return $this->error('Corrupt FLAC file: uncompressed_audio_bytes == zero');
160  }
161  if (!empty($info['flac']['compressed_audio_bytes'])) {
162  $info['flac']['compression_ratio'] = $info['flac']['compressed_audio_bytes'] / $info['flac']['uncompressed_audio_bytes'];
163  }
164  }
165 
166  // set md5_data_source - built into flac 0.5+
167  if (isset($info['flac']['STREAMINFO']['audio_signature'])) {
168 
169  if ($info['flac']['STREAMINFO']['audio_signature'] === str_repeat("\x00", 16)) {
170  $this->warning('FLAC STREAMINFO.audio_signature is null (known issue with libOggFLAC)');
171  }
172  else {
173  $info['md5_data_source'] = '';
174  $md5 = $info['flac']['STREAMINFO']['audio_signature'];
175  for ($i = 0; $i < strlen($md5); $i++) {
176  $info['md5_data_source'] .= str_pad(dechex(ord($md5[$i])), 2, '00', STR_PAD_LEFT);
177  }
178  if (!preg_match('/^[0-9a-f]{32}$/', $info['md5_data_source'])) {
179  unset($info['md5_data_source']);
180  }
181  }
182  }
183 
184  if (isset($info['flac']['STREAMINFO']['bits_per_sample'])) {
185  $info['audio']['bits_per_sample'] = $info['flac']['STREAMINFO']['bits_per_sample'];
186  if ($info['audio']['bits_per_sample'] == 8) {
187  // special case
188  // must invert sign bit on all data bytes before MD5'ing to match FLAC's calculated value
189  // MD5sum calculates on unsigned bytes, but FLAC calculated MD5 on 8-bit audio data as signed
190  $this->warning('FLAC calculates MD5 data strangely on 8-bit audio, so the stored md5_data_source value will not match the decoded WAV file');
191  }
192  }
193 
194  return true;
195  }
getid3_flac\parseSEEKTABLE
parseSEEKTABLE($BlockData)
Definition: module.audio.flac.php:249
getid3_flac\parseSTREAMINFO
parseSTREAMINFO($BlockData)
Definition: module.audio.flac.php:197
getID3\ATTACHMENTS_NONE
const ATTACHMENTS_NONE
Definition: getid3.php:115
getid3_handler\isDependencyFor
isDependencyFor($module)
Definition: getid3.php:1734
getid3_handler\error
error($text)
Definition: getid3.php:1738
getid3_flac\parseVORBIS_COMMENT
parseVORBIS_COMMENT($BlockData)
Definition: module.audio.flac.php:278
getid3_handler\warning
warning($text)
Definition: getid3.php:1744
getid3_flac\parsePICTURE
parsePICTURE()
Parse METADATA_BLOCK_PICTURE flac structure and extract attachment External usage: audio...
Definition: module.audio.flac.php:352
$info
$info
Definition: example_052.php:80
getid3_flac\parseCUESHEET
parseCUESHEET($BlockData)
Definition: module.audio.flac.php:297
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_flac\parseAPPLICATION
parseAPPLICATION($BlockData)
Definition: module.audio.flac.php:239
getid3_handler\ftell
ftell()
Definition: getid3.php:1678
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parsePICTURE()

getid3_flac::parsePICTURE ( )

Parse METADATA_BLOCK_PICTURE flac structure and extract attachment External usage: audio.ogg.

Definition at line 352 of file module.audio.flac.php.

References $info, getid3_lib\BigEndian2Int(), getid3_handler\fread(), getid3_handler\ftell(), and getid3_handler\saveAttachment().

Referenced by parseMETAdata().

352  {
353  $info = &$this->getid3->info;
354 
355  $picture['typeid'] = getid3_lib::BigEndian2Int($this->fread(4));
356  $picture['picturetype'] = self::pictureTypeLookup($picture['typeid']);
357  $picture['image_mime'] = $this->fread(getid3_lib::BigEndian2Int($this->fread(4)));
358  $descr_length = getid3_lib::BigEndian2Int($this->fread(4));
359  if ($descr_length) {
360  $picture['description'] = $this->fread($descr_length);
361  }
362  $picture['image_width'] = getid3_lib::BigEndian2Int($this->fread(4));
363  $picture['image_height'] = getid3_lib::BigEndian2Int($this->fread(4));
364  $picture['color_depth'] = getid3_lib::BigEndian2Int($this->fread(4));
365  $picture['colors_indexed'] = getid3_lib::BigEndian2Int($this->fread(4));
366  $picture['datalength'] = getid3_lib::BigEndian2Int($this->fread(4));
367 
368  if ($picture['image_mime'] == '-->') {
369  $picture['data'] = $this->fread($picture['datalength']);
370  } else {
371  $picture['data'] = $this->saveAttachment(
372  str_replace('/', '_', $picture['picturetype']).'_'.$this->ftell(),
373  $this->ftell(),
374  $picture['datalength'],
375  $picture['image_mime']);
376  }
377 
378  $info['flac']['PICTURE'][] = $picture;
379 
380  return true;
381  }
getid3_handler\saveAttachment
saveAttachment($name, $offset, $length, $image_mime=null)
Definition: getid3.php:1752
$info
$info
Definition: example_052.php:80
getid3_handler\fread
fread($bytes)
Definition: getid3.php:1685
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_handler\ftell
ftell()
Definition: getid3.php:1678
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parseSEEKTABLE()

getid3_flac::parseSEEKTABLE (   $BlockData)
private

Definition at line 249 of file module.audio.flac.php.

References $info, getid3_lib\BigEndian2Int(), and getid3_lib\safe_inc().

Referenced by parseMETAdata().

249  {
250  $info = &$this->getid3->info;
251 
252  $offset = 0;
253  $BlockLength = strlen($BlockData);
254  $placeholderpattern = str_repeat("\xFF", 8);
255  while ($offset < $BlockLength) {
256  $SampleNumberString = substr($BlockData, $offset, 8);
257  $offset += 8;
258  if ($SampleNumberString == $placeholderpattern) {
259 
260  // placeholder point
261  getid3_lib::safe_inc($info['flac']['SEEKTABLE']['placeholders'], 1);
262  $offset += 10;
263 
264  } else {
265 
266  $SampleNumber = getid3_lib::BigEndian2Int($SampleNumberString);
267  $info['flac']['SEEKTABLE'][$SampleNumber]['offset'] = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 8));
268  $offset += 8;
269  $info['flac']['SEEKTABLE'][$SampleNumber]['samples'] = getid3_lib::BigEndian2Int(substr($BlockData, $offset, 2));
270  $offset += 2;
271 
272  }
273  }
274 
275  return true;
276  }
getid3_lib\safe_inc
static safe_inc(&$variable, $increment=1)
Definition: getid3.lib.php:56
$info
$info
Definition: example_052.php:80
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parseSTREAMINFO()

getid3_flac::parseSTREAMINFO (   $BlockData)
private

Definition at line 197 of file module.audio.flac.php.

References $info, getid3_lib\BigEndian2Bin(), getid3_lib\BigEndian2Int(), getid3_lib\Bin2Dec(), getid3_handler\error(), getid3_handler\isDependencyFor(), and getid3_handler\warning().

Referenced by parseMETAdata().

197  {
198  $info = &$this->getid3->info;
199 
200  $info['flac']['STREAMINFO'] = array();
201  $streaminfo = &$info['flac']['STREAMINFO'];
202 
203  $streaminfo['min_block_size'] = getid3_lib::BigEndian2Int(substr($BlockData, 0, 2));
204  $streaminfo['max_block_size'] = getid3_lib::BigEndian2Int(substr($BlockData, 2, 2));
205  $streaminfo['min_frame_size'] = getid3_lib::BigEndian2Int(substr($BlockData, 4, 3));
206  $streaminfo['max_frame_size'] = getid3_lib::BigEndian2Int(substr($BlockData, 7, 3));
207 
208  $SRCSBSS = getid3_lib::BigEndian2Bin(substr($BlockData, 10, 8));
209  $streaminfo['sample_rate'] = getid3_lib::Bin2Dec(substr($SRCSBSS, 0, 20));
210  $streaminfo['channels'] = getid3_lib::Bin2Dec(substr($SRCSBSS, 20, 3)) + 1;
211  $streaminfo['bits_per_sample'] = getid3_lib::Bin2Dec(substr($SRCSBSS, 23, 5)) + 1;
212  $streaminfo['samples_stream'] = getid3_lib::Bin2Dec(substr($SRCSBSS, 28, 36));
213 
214  $streaminfo['audio_signature'] = substr($BlockData, 18, 16);
215 
216  if (!empty($streaminfo['sample_rate'])) {
217 
218  $info['audio']['bitrate_mode'] = 'vbr';
219  $info['audio']['sample_rate'] = $streaminfo['sample_rate'];
220  $info['audio']['channels'] = $streaminfo['channels'];
221  $info['audio']['bits_per_sample'] = $streaminfo['bits_per_sample'];
222  $info['playtime_seconds'] = $streaminfo['samples_stream'] / $streaminfo['sample_rate'];
223  if ($info['playtime_seconds'] > 0) {
224  if (!$this->isDependencyFor('matroska')) {
225  $info['audio']['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
226  }
227  else {
228  $this->warning('Cannot determine audio bitrate because total stream size is unknown');
229  }
230  }
231 
232  } else {
233  return $this->error('Corrupt METAdata block: STREAMINFO');
234  }
235 
236  return true;
237  }
getid3_handler\isDependencyFor
isDependencyFor($module)
Definition: getid3.php:1734
getid3_handler\error
error($text)
Definition: getid3.php:1738
getid3_lib\Bin2Dec
Bin2Dec($binstring, $signed=false)
Definition: getid3.lib.php:316
getid3_handler\warning
warning($text)
Definition: getid3.php:1744
$info
$info
Definition: example_052.php:80
getid3_lib\BigEndian2Int
BigEndian2Int($byteword, $synchsafe=false, $signed=false)
Definition: getid3.lib.php:234
getid3_lib\BigEndian2Bin
BigEndian2Bin($byteword)
Definition: getid3.lib.php:271
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ parseVORBIS_COMMENT()

getid3_flac::parseVORBIS_COMMENT (   $BlockData)
private

Definition at line 278 of file module.audio.flac.php.

References $info, and getid3_handler\isDependencyFor().

Referenced by parseMETAdata().

278  {
279  $info = &$this->getid3->info;
280 
281  $getid3_ogg = new getid3_ogg($this->getid3);
282  if ($this->isDependencyFor('matroska')) {
283  $getid3_ogg->setStringMode($this->data_string);
284  }
285  $getid3_ogg->ParseVorbisComments();
286  if (isset($info['ogg'])) {
287  unset($info['ogg']['comments_raw']);
288  $info['flac']['VORBIS_COMMENT'] = $info['ogg'];
289  unset($info['ogg']);
290  }
291 
292  unset($getid3_ogg);
293 
294  return true;
295  }
getid3_handler\isDependencyFor
isDependencyFor($module)
Definition: getid3.php:1734
$info
$info
Definition: example_052.php:80
getid3_ogg
Definition: module.audio.ogg.php:18
+ Here is the call graph for this function:
+ Here is the caller graph for this function:

◆ pictureTypeLookup()

static getid3_flac::pictureTypeLookup (   $type_id)
static

Definition at line 426 of file module.audio.flac.php.

426  {
427  static $lookup = array (
428  0 => 'Other',
429  1 => '32x32 pixels \'file icon\' (PNG only)',
430  2 => 'Other file icon',
431  3 => 'Cover (front)',
432  4 => 'Cover (back)',
433  5 => 'Leaflet page',
434  6 => 'Media (e.g. label side of CD)',
435  7 => 'Lead artist/lead performer/soloist',
436  8 => 'Artist/performer',
437  9 => 'Conductor',
438  10 => 'Band/Orchestra',
439  11 => 'Composer',
440  12 => 'Lyricist/text writer',
441  13 => 'Recording Location',
442  14 => 'During recording',
443  15 => 'During performance',
444  16 => 'Movie/video screen capture',
445  17 => 'A bright coloured fish',
446  18 => 'Illustration',
447  19 => 'Band/artist logotype',
448  20 => 'Publisher/Studio logotype',
449  );
450  return (isset($lookup[$type_id]) ? $lookup[$type_id] : 'reserved');
451  }

Field Documentation

◆ syncword

const getid3_flac::syncword = 'fLaC'

Definition at line 25 of file module.audio.flac.php.

The documentation for this class was generated from the following file: