ILIAS  Release_4_0_x_branch Revision 61816
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write.id3v2.php
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1 <?php
4 // available at http://getid3.sourceforge.net //
5 // or http://www.getid3.org //
7 // See readme.txt for more details //
10 // write.id3v2.php //
11 // module for writing ID3v2 tags //
12 // dependencies: module.tag.id3v2.php //
13 // ///
15 
16 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true);
17 
18 class getid3_write_id3v2
19 {
20  var $filename;
21  var $tag_data;
22  var $paddedlength = 4096; // minimum length of ID3v2 tag in bytes
23  var $majorversion = 3; // ID3v2 major version (2, 3 (recommended), 4)
24  var $minorversion = 0; // ID3v2 minor version - always 0
25  var $merge_existing_data = false; // if true, merge new data with existing tags; if false, delete old tag data and only write new tags
26  var $id3v2_default_encodingid = 0; // default text encoding (ISO-8859-1) if not explicitly passed
27  var $id3v2_use_unsynchronisation = false; // the specs say it should be TRUE, but most other ID3v2-aware programs are broken if unsynchronization is used, so by default don't use it.
28  var $warnings = array(); // any non-critical errors will be stored here
29  var $errors = array(); // any critical errors will be stored here
30 
31  function getid3_write_id3v2() {
32  return true;
33  }
34 
35  function WriteID3v2() {
36  // File MUST be writeable - CHMOD(646) at least. It's best if the
37  // directory is also writeable, because that method is both faster and less susceptible to errors.
38 
39  if (is_writeable($this->filename) || (!file_exists($this->filename) && is_writeable(dirname($this->filename)))) {
40  // Initialize getID3 engine
41  $getID3 = new getID3;
42  $OldThisFileInfo = $getID3->analyze($this->filename);
43  if ($this->merge_existing_data) {
44  // merge with existing data
45  if (!empty($OldThisFileInfo['id3v2'])) {
46  $this->tag_data = $this->array_join_merge($OldThisFileInfo['id3v2'], $this->tag_data);
47  }
48  }
49  $this->paddedlength = max(@$OldThisFileInfo['id3v2']['headerlength'], $this->paddedlength);
50 
51  if ($NewID3v2Tag = $this->GenerateID3v2Tag()) {
52 
53  if (file_exists($this->filename) && is_writeable($this->filename) && isset($OldThisFileInfo['id3v2']['headerlength']) && ($OldThisFileInfo['id3v2']['headerlength'] == strlen($NewID3v2Tag))) {
54 
55  // best and fastest method - insert-overwrite existing tag (padded to length of old tag if neccesary)
56  if (file_exists($this->filename)) {
57 
58  ob_start();
59  if ($fp = fopen($this->filename, 'r+b')) {
60  rewind($fp);
61  fwrite($fp, $NewID3v2Tag, strlen($NewID3v2Tag));
62  fclose($fp);
63  } else {
64  $this->errors[] = 'Could not open '.$this->filename.' mode "r+b" - '.strip_tags(ob_get_contents());
65  }
66  ob_end_clean();
67 
68  } else {
69 
70  ob_start();
71  if ($fp = fopen($this->filename, 'wb')) {
72  rewind($fp);
73  fwrite($fp, $NewID3v2Tag, strlen($NewID3v2Tag));
74  fclose($fp);
75  } else {
76  $this->errors[] = 'Could not open '.$this->filename.' mode "wb" - '.strip_tags(ob_get_contents());
77  }
78  ob_end_clean();
79 
80  }
81 
82  } else {
83 
84  if ($tempfilename = tempnam('*', 'getID3')) {
85  ob_start();
86  if ($fp_source = fopen($this->filename, 'rb')) {
87  if ($fp_temp = fopen($tempfilename, 'wb')) {
88 
89  fwrite($fp_temp, $NewID3v2Tag, strlen($NewID3v2Tag));
90 
91  rewind($fp_source);
92  if (!empty($OldThisFileInfo['avdataoffset'])) {
93  fseek($fp_source, $OldThisFileInfo['avdataoffset'], SEEK_SET);
94  }
95 
96  while ($buffer = fread($fp_source, GETID3_FREAD_BUFFER_SIZE)) {
97  fwrite($fp_temp, $buffer, strlen($buffer));
98  }
99 
100  fclose($fp_temp);
101  fclose($fp_source);
102  copy($tempfilename, $this->filename);
103  unlink($tempfilename);
104  ob_end_clean();
105  return true;
106 
107  } else {
108 
109  $this->errors[] = 'Could not open '.$tempfilename.' mode "wb" - '.strip_tags(ob_get_contents());
110 
111  }
112  fclose($fp_source);
113 
114  } else {
115 
116  $this->errors[] = 'Could not open '.$this->filename.' mode "rb" - '.strip_tags(ob_get_contents());
117 
118  }
119  ob_end_clean();
120  }
121  return false;
122 
123  }
124 
125  } else {
126 
127  $this->errors[] = '$this->GenerateID3v2Tag() failed';
128 
129  }
130 
131  if (!empty($this->errors)) {
132  return false;
133  }
134  return true;
135  } else {
136  $this->errors[] = '!is_writeable('.$this->filename.')';
137  }
138  return false;
139  }
140 
141  function RemoveID3v2() {
142 
143  // File MUST be writeable - CHMOD(646) at least. It's best if the
144  // directory is also writeable, because that method is both faster and less susceptible to errors.
145  if (is_writeable(dirname($this->filename))) {
146 
147  // preferred method - only one copying operation, minimal chance of corrupting
148  // original file if script is interrupted, but required directory to be writeable
149  if ($fp_source = @fopen($this->filename, 'rb')) {
150  // Initialize getID3 engine
151  $getID3 = new getID3;
152  $OldThisFileInfo = $getID3->analyze($this->filename);
153  rewind($fp_source);
154  if ($OldThisFileInfo['avdataoffset'] !== false) {
155  fseek($fp_source, $OldThisFileInfo['avdataoffset'], SEEK_SET);
156  }
157  if ($fp_temp = @fopen($this->filename.'getid3tmp', 'w+b')) {
158  while ($buffer = fread($fp_source, GETID3_FREAD_BUFFER_SIZE)) {
159  fwrite($fp_temp, $buffer, strlen($buffer));
160  }
161  fclose($fp_temp);
162  } else {
163  $this->errors[] = 'Could not open '.$this->filename.'getid3tmp mode "w+b"';
164  }
165  fclose($fp_source);
166  } else {
167  $this->errors[] = 'Could not open '.$this->filename.' mode "rb"';
168  }
169  if (file_exists($this->filename)) {
170  unlink($this->filename);
171  }
172  rename($this->filename.'getid3tmp', $this->filename);
173 
174  } elseif (is_writable($this->filename)) {
175 
176  // less desirable alternate method - double-copies the file, overwrites original file
177  // and could corrupt source file if the script is interrupted or an error occurs.
178  if ($fp_source = @fopen($this->filename, 'rb')) {
179  // Initialize getID3 engine
180  $getID3 = new getID3;
181  $OldThisFileInfo = $getID3->analyze($this->filename);
182  rewind($fp_source);
183  if ($OldThisFileInfo['avdataoffset'] !== false) {
184  fseek($fp_source, $OldThisFileInfo['avdataoffset'], SEEK_SET);
185  }
186  if ($fp_temp = tmpfile()) {
187  while ($buffer = fread($fp_source, GETID3_FREAD_BUFFER_SIZE)) {
188  fwrite($fp_temp, $buffer, strlen($buffer));
189  }
190  fclose($fp_source);
191  if ($fp_source = @fopen($this->filename, 'wb')) {
192  rewind($fp_temp);
193  while ($buffer = fread($fp_temp, GETID3_FREAD_BUFFER_SIZE)) {
194  fwrite($fp_source, $buffer, strlen($buffer));
195  }
196  fseek($fp_temp, -128, SEEK_END);
197  fclose($fp_source);
198  } else {
199  $this->errors[] = 'Could not open '.$this->filename.' mode "wb"';
200  }
201  fclose($fp_temp);
202  } else {
203  $this->errors[] = 'Could not create tmpfile()';
204  }
205  } else {
206  $this->errors[] = 'Could not open '.$this->filename.' mode "rb"';
207  }
208 
209  } else {
210 
211  $this->errors[] = 'Directory and file both not writeable';
212 
213  }
214 
215  if (!empty($this->errors)) {
216  return false;
217  }
218  return true;
219  }
220 
221 
222  function GenerateID3v2TagFlags($flags) {
223  switch ($this->majorversion) {
224  case 4:
225  // %abcd0000
226  $flag = (@$flags['unsynchronisation'] ? '1' : '0'); // a - Unsynchronisation
227  $flag .= (@$flags['extendedheader'] ? '1' : '0'); // b - Extended header
228  $flag .= (@$flags['experimental'] ? '1' : '0'); // c - Experimental indicator
229  $flag .= (@$flags['footer'] ? '1' : '0'); // d - Footer present
230  $flag .= '0000';
231  break;
232 
233  case 3:
234  // %abc00000
235  $flag = (@$flags['unsynchronisation'] ? '1' : '0'); // a - Unsynchronisation
236  $flag .= (@$flags['extendedheader'] ? '1' : '0'); // b - Extended header
237  $flag .= (@$flags['experimental'] ? '1' : '0'); // c - Experimental indicator
238  $flag .= '00000';
239  break;
240 
241  case 2:
242  // %ab000000
243  $flag = (@$flags['unsynchronisation'] ? '1' : '0'); // a - Unsynchronisation
244  $flag .= (@$flags['compression'] ? '1' : '0'); // b - Compression
245  $flag .= '000000';
246  break;
247 
248  default:
249  return false;
250  break;
251  }
252  return chr(bindec($flag));
253  }
254 
255 
256  function GenerateID3v2FrameFlags($TagAlter=false, $FileAlter=false, $ReadOnly=false, $Compression=false, $Encryption=false, $GroupingIdentity=false, $Unsynchronisation=false, $DataLengthIndicator=false) {
257  switch ($this->majorversion) {
258  case 4:
259  // %0abc0000 %0h00kmnp
260  $flag1 = '0';
261  $flag1 .= $TagAlter ? '1' : '0'; // a - Tag alter preservation (true == discard)
262  $flag1 .= $FileAlter ? '1' : '0'; // b - File alter preservation (true == discard)
263  $flag1 .= $ReadOnly ? '1' : '0'; // c - Read only (true == read only)
264  $flag1 .= '0000';
265 
266  $flag2 = '0';
267  $flag2 .= $GroupingIdentity ? '1' : '0'; // h - Grouping identity (true == contains group information)
268  $flag2 .= '00';
269  $flag2 .= $Compression ? '1' : '0'; // k - Compression (true == compressed)
270  $flag2 .= $Encryption ? '1' : '0'; // m - Encryption (true == encrypted)
271  $flag2 .= $Unsynchronisation ? '1' : '0'; // n - Unsynchronisation (true == unsynchronised)
272  $flag2 .= $DataLengthIndicator ? '1' : '0'; // p - Data length indicator (true == data length indicator added)
273  break;
274 
275  case 3:
276  // %abc00000 %ijk00000
277  $flag1 = $TagAlter ? '1' : '0'; // a - Tag alter preservation (true == discard)
278  $flag1 .= $FileAlter ? '1' : '0'; // b - File alter preservation (true == discard)
279  $flag1 .= $ReadOnly ? '1' : '0'; // c - Read only (true == read only)
280  $flag1 .= '00000';
281 
282  $flag2 = $Compression ? '1' : '0'; // i - Compression (true == compressed)
283  $flag2 .= $Encryption ? '1' : '0'; // j - Encryption (true == encrypted)
284  $flag2 .= $GroupingIdentity ? '1' : '0'; // k - Grouping identity (true == contains group information)
285  $flag2 .= '00000';
286  break;
287 
288  default:
289  return false;
290  break;
291 
292  }
293  return chr(bindec($flag1)).chr(bindec($flag2));
294  }
295 
296  function GenerateID3v2FrameData($frame_name, $source_data_array) {
297  if (!getid3_id3v2::IsValidID3v2FrameName($frame_name, $this->majorversion)) {
298  return false;
299  }
300  $framedata = '';
301 
302  if (($this->majorversion < 3) || ($this->majorversion > 4)) {
303 
304  $this->errors[] = 'Only ID3v2.3 and ID3v2.4 are supported in GenerateID3v2FrameData()';
305 
306  } else { // $this->majorversion 3 or 4
307 
308  switch ($frame_name) {
309  case 'UFID':
310  // 4.1 UFID Unique file identifier
311  // Owner identifier <text string> $00
312  // Identifier <up to 64 bytes binary data>
313  if (strlen($source_data_array['data']) > 64) {
314  $this->errors[] = 'Identifier not allowed to be longer than 64 bytes in '.$frame_name.' (supplied data was '.strlen($source_data_array['data']).' bytes long)';
315  } else {
316  $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
317  $framedata .= substr($source_data_array['data'], 0, 64); // max 64 bytes - truncate anything longer
318  }
319  break;
320 
321  case 'TXXX':
322  // 4.2.2 TXXX User defined text information frame
323  // Text encoding $xx
324  // Description <text string according to encoding> $00 (00)
325  // Value <text string according to encoding>
326  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
327  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
328  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
329  } else {
330  $framedata .= chr($source_data_array['encodingid']);
331  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
332  $framedata .= $source_data_array['data'];
333  }
334  break;
335 
336  case 'WXXX':
337  // 4.3.2 WXXX User defined URL link frame
338  // Text encoding $xx
339  // Description <text string according to encoding> $00 (00)
340  // URL <text string>
341  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
342  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
343  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
344  } elseif (!isset($source_data_array['data']) || !$this->IsValidURL($source_data_array['data'], false, false)) {
345  //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
346  // probably should be an error, need to rewrite IsValidURL() to handle other encodings
347  $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
348  } else {
349  $framedata .= chr($source_data_array['encodingid']);
350  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
351  $framedata .= $source_data_array['data'];
352  }
353  break;
354 
355  case 'IPLS':
356  // 4.4 IPLS Involved people list (ID3v2.3 only)
357  // Text encoding $xx
358  // People list strings <textstrings>
359  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
360  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
361  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
362  } else {
363  $framedata .= chr($source_data_array['encodingid']);
364  $framedata .= $source_data_array['data'];
365  }
366  break;
367 
368  case 'MCDI':
369  // 4.4 MCDI Music CD identifier
370  // CD TOC <binary data>
371  $framedata .= $source_data_array['data'];
372  break;
373 
374  case 'ETCO':
375  // 4.5 ETCO Event timing codes
376  // Time stamp format $xx
377  // Where time stamp format is:
378  // $01 (32-bit value) MPEG frames from beginning of file
379  // $02 (32-bit value) milliseconds from beginning of file
380  // Followed by a list of key events in the following format:
381  // Type of event $xx
382  // Time stamp $xx (xx ...)
383  // The 'Time stamp' is set to zero if directly at the beginning of the sound
384  // or after the previous event. All events MUST be sorted in chronological order.
385  if (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
386  $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
387  } else {
388  $framedata .= chr($source_data_array['timestampformat']);
389  foreach ($source_data_array as $key => $val) {
390  if (!$this->ID3v2IsValidETCOevent($val['typeid'])) {
391  $this->errors[] = 'Invalid Event Type byte in '.$frame_name.' ('.$val['typeid'].')';
392  } elseif (($key != 'timestampformat') && ($key != 'flags')) {
393  if (($val['timestamp'] > 0) && ($previousETCOtimestamp >= $val['timestamp'])) {
394  // The 'Time stamp' is set to zero if directly at the beginning of the sound
395  // or after the previous event. All events MUST be sorted in chronological order.
396  $this->errors[] = 'Out-of-order timestamp in '.$frame_name.' ('.$val['timestamp'].') for Event Type ('.$val['typeid'].')';
397  } else {
398  $framedata .= chr($val['typeid']);
399  $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
400  }
401  }
402  }
403  }
404  break;
405 
406  case 'MLLT':
407  // 4.6 MLLT MPEG location lookup table
408  // MPEG frames between reference $xx xx
409  // Bytes between reference $xx xx xx
410  // Milliseconds between reference $xx xx xx
411  // Bits for bytes deviation $xx
412  // Bits for milliseconds dev. $xx
413  // Then for every reference the following data is included;
414  // Deviation in bytes %xxx....
415  // Deviation in milliseconds %xxx....
416  if (($source_data_array['framesbetweenreferences'] > 0) && ($source_data_array['framesbetweenreferences'] <= 65535)) {
417  $framedata .= getid3_lib::BigEndian2String($source_data_array['framesbetweenreferences'], 2, false);
418  } else {
419  $this->errors[] = 'Invalid MPEG Frames Between References in '.$frame_name.' ('.$source_data_array['framesbetweenreferences'].')';
420  }
421  if (($source_data_array['bytesbetweenreferences'] > 0) && ($source_data_array['bytesbetweenreferences'] <= 16777215)) {
422  $framedata .= getid3_lib::BigEndian2String($source_data_array['bytesbetweenreferences'], 3, false);
423  } else {
424  $this->errors[] = 'Invalid bytes Between References in '.$frame_name.' ('.$source_data_array['bytesbetweenreferences'].')';
425  }
426  if (($source_data_array['msbetweenreferences'] > 0) && ($source_data_array['msbetweenreferences'] <= 16777215)) {
427  $framedata .= getid3_lib::BigEndian2String($source_data_array['msbetweenreferences'], 3, false);
428  } else {
429  $this->errors[] = 'Invalid Milliseconds Between References in '.$frame_name.' ('.$source_data_array['msbetweenreferences'].')';
430  }
431  if (!$this->IsWithinBitRange($source_data_array['bitsforbytesdeviation'], 8, false)) {
432  if (($source_data_array['bitsforbytesdeviation'] % 4) == 0) {
433  $framedata .= chr($source_data_array['bitsforbytesdeviation']);
434  } else {
435  $this->errors[] = 'Bits For Bytes Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].') must be a multiple of 4.';
436  }
437  } else {
438  $this->errors[] = 'Invalid Bits For Bytes Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].')';
439  }
440  if (!$this->IsWithinBitRange($source_data_array['bitsformsdeviation'], 8, false)) {
441  if (($source_data_array['bitsformsdeviation'] % 4) == 0) {
442  $framedata .= chr($source_data_array['bitsformsdeviation']);
443  } else {
444  $this->errors[] = 'Bits For Milliseconds Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].') must be a multiple of 4.';
445  }
446  } else {
447  $this->errors[] = 'Invalid Bits For Milliseconds Deviation in '.$frame_name.' ('.$source_data_array['bitsformsdeviation'].')';
448  }
449  foreach ($source_data_array as $key => $val) {
450  if (($key != 'framesbetweenreferences') && ($key != 'bytesbetweenreferences') && ($key != 'msbetweenreferences') && ($key != 'bitsforbytesdeviation') && ($key != 'bitsformsdeviation') && ($key != 'flags')) {
451  $unwrittenbitstream .= str_pad(getid3_lib::Dec2Bin($val['bytedeviation']), $source_data_array['bitsforbytesdeviation'], '0', STR_PAD_LEFT);
452  $unwrittenbitstream .= str_pad(getid3_lib::Dec2Bin($val['msdeviation']), $source_data_array['bitsformsdeviation'], '0', STR_PAD_LEFT);
453  }
454  }
455  for ($i = 0; $i < strlen($unwrittenbitstream); $i += 8) {
456  $highnibble = bindec(substr($unwrittenbitstream, $i, 4)) << 4;
457  $lownibble = bindec(substr($unwrittenbitstream, $i + 4, 4));
458  $framedata .= chr($highnibble & $lownibble);
459  }
460  break;
461 
462  case 'SYTC':
463  // 4.7 SYTC Synchronised tempo codes
464  // Time stamp format $xx
465  // Tempo data <binary data>
466  // Where time stamp format is:
467  // $01 (32-bit value) MPEG frames from beginning of file
468  // $02 (32-bit value) milliseconds from beginning of file
469  if (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
470  $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
471  } else {
472  $framedata .= chr($source_data_array['timestampformat']);
473  foreach ($source_data_array as $key => $val) {
474  if (!$this->ID3v2IsValidETCOevent($val['typeid'])) {
475  $this->errors[] = 'Invalid Event Type byte in '.$frame_name.' ('.$val['typeid'].')';
476  } elseif (($key != 'timestampformat') && ($key != 'flags')) {
477  if (($val['tempo'] < 0) || ($val['tempo'] > 510)) {
478  $this->errors[] = 'Invalid Tempo (max = 510) in '.$frame_name.' ('.$val['tempo'].') at timestamp ('.$val['timestamp'].')';
479  } else {
480  if ($val['tempo'] > 255) {
481  $framedata .= chr(255);
482  $val['tempo'] -= 255;
483  }
484  $framedata .= chr($val['tempo']);
485  $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
486  }
487  }
488  }
489  }
490  break;
491 
492  case 'USLT':
493  // 4.8 USLT Unsynchronised lyric/text transcription
494  // Text encoding $xx
495  // Language $xx xx xx
496  // Content descriptor <text string according to encoding> $00 (00)
497  // Lyrics/text <full text string according to encoding>
498  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
499  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
500  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
501  } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
502  $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
503  } else {
504  $framedata .= chr($source_data_array['encodingid']);
505  $framedata .= strtolower($source_data_array['language']);
506  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
507  $framedata .= $source_data_array['data'];
508  }
509  break;
510 
511  case 'SYLT':
512  // 4.9 SYLT Synchronised lyric/text
513  // Text encoding $xx
514  // Language $xx xx xx
515  // Time stamp format $xx
516  // $01 (32-bit value) MPEG frames from beginning of file
517  // $02 (32-bit value) milliseconds from beginning of file
518  // Content type $xx
519  // Content descriptor <text string according to encoding> $00 (00)
520  // Terminated text to be synced (typically a syllable)
521  // Sync identifier (terminator to above string) $00 (00)
522  // Time stamp $xx (xx ...)
523  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
524  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
525  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
526  } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
527  $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
528  } elseif (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
529  $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
530  } elseif (!$this->ID3v2IsValidSYLTtype($source_data_array['contenttypeid'])) {
531  $this->errors[] = 'Invalid Content Type byte in '.$frame_name.' ('.$source_data_array['contenttypeid'].')';
532  } elseif (!is_array($source_data_array['data'])) {
533  $this->errors[] = 'Invalid Lyric/Timestamp data in '.$frame_name.' (must be an array)';
534  } else {
535  $framedata .= chr($source_data_array['encodingid']);
536  $framedata .= strtolower($source_data_array['language']);
537  $framedata .= chr($source_data_array['timestampformat']);
538  $framedata .= chr($source_data_array['contenttypeid']);
539  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
540  ksort($source_data_array['data']);
541  foreach ($source_data_array['data'] as $key => $val) {
542  $framedata .= $val['data'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
543  $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
544  }
545  }
546  break;
547 
548  case 'COMM':
549  // 4.10 COMM Comments
550  // Text encoding $xx
551  // Language $xx xx xx
552  // Short content descrip. <text string according to encoding> $00 (00)
553  // The actual text <full text string according to encoding>
554  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
555  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
556  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
557  } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
558  $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
559  } else {
560  $framedata .= chr($source_data_array['encodingid']);
561  $framedata .= strtolower($source_data_array['language']);
562  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
563  $framedata .= $source_data_array['data'];
564  }
565  break;
566 
567  case 'RVA2':
568  // 4.11 RVA2 Relative volume adjustment (2) (ID3v2.4+ only)
569  // Identification <text string> $00
570  // The 'identification' string is used to identify the situation and/or
571  // device where this adjustment should apply. The following is then
572  // repeated for every channel:
573  // Type of channel $xx
574  // Volume adjustment $xx xx
575  // Bits representing peak $xx
576  // Peak volume $xx (xx ...)
577  $framedata .= str_replace("\x00", '', $source_data_array['description'])."\x00";
578  foreach ($source_data_array as $key => $val) {
579  if ($key != 'description') {
580  $framedata .= chr($val['channeltypeid']);
581  $framedata .= getid3_lib::BigEndian2String($val['volumeadjust'], 2, false, true); // signed 16-bit
582  if (!$this->IsWithinBitRange($source_data_array['bitspeakvolume'], 8, false)) {
583  $framedata .= chr($val['bitspeakvolume']);
584  if ($val['bitspeakvolume'] > 0) {
585  $framedata .= getid3_lib::BigEndian2String($val['peakvolume'], ceil($val['bitspeakvolume'] / 8), false, false);
586  }
587  } else {
588  $this->errors[] = 'Invalid Bits Representing Peak Volume in '.$frame_name.' ('.$val['bitspeakvolume'].') (range = 0 to 255)';
589  }
590  }
591  }
592  break;
593 
594  case 'RVAD':
595  // 4.12 RVAD Relative volume adjustment (ID3v2.3 only)
596  // Increment/decrement %00fedcba
597  // Bits used for volume descr. $xx
598  // Relative volume change, right $xx xx (xx ...) // a
599  // Relative volume change, left $xx xx (xx ...) // b
600  // Peak volume right $xx xx (xx ...)
601  // Peak volume left $xx xx (xx ...)
602  // Relative volume change, right back $xx xx (xx ...) // c
603  // Relative volume change, left back $xx xx (xx ...) // d
604  // Peak volume right back $xx xx (xx ...)
605  // Peak volume left back $xx xx (xx ...)
606  // Relative volume change, center $xx xx (xx ...) // e
607  // Peak volume center $xx xx (xx ...)
608  // Relative volume change, bass $xx xx (xx ...) // f
609  // Peak volume bass $xx xx (xx ...)
610  if (!$this->IsWithinBitRange($source_data_array['bitsvolume'], 8, false)) {
611  $this->errors[] = 'Invalid Bits For Volume Description byte in '.$frame_name.' ('.$source_data_array['bitsvolume'].') (range = 1 to 255)';
612  } else {
613  $incdecflag .= '00';
614  $incdecflag .= $source_data_array['incdec']['right'] ? '1' : '0'; // a - Relative volume change, right
615  $incdecflag .= $source_data_array['incdec']['left'] ? '1' : '0'; // b - Relative volume change, left
616  $incdecflag .= $source_data_array['incdec']['rightrear'] ? '1' : '0'; // c - Relative volume change, right back
617  $incdecflag .= $source_data_array['incdec']['leftrear'] ? '1' : '0'; // d - Relative volume change, left back
618  $incdecflag .= $source_data_array['incdec']['center'] ? '1' : '0'; // e - Relative volume change, center
619  $incdecflag .= $source_data_array['incdec']['bass'] ? '1' : '0'; // f - Relative volume change, bass
620  $framedata .= chr(bindec($incdecflag));
621  $framedata .= chr($source_data_array['bitsvolume']);
622  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['right'], ceil($source_data_array['bitsvolume'] / 8), false);
623  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['left'], ceil($source_data_array['bitsvolume'] / 8), false);
624  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['right'], ceil($source_data_array['bitsvolume'] / 8), false);
625  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['left'], ceil($source_data_array['bitsvolume'] / 8), false);
626  if ($source_data_array['volumechange']['rightrear'] || $source_data_array['volumechange']['leftrear'] ||
627  $source_data_array['peakvolume']['rightrear'] || $source_data_array['peakvolume']['leftrear'] ||
628  $source_data_array['volumechange']['center'] || $source_data_array['peakvolume']['center'] ||
629  $source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
630  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['rightrear'], ceil($source_data_array['bitsvolume']/8), false);
631  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['leftrear'], ceil($source_data_array['bitsvolume']/8), false);
632  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['rightrear'], ceil($source_data_array['bitsvolume']/8), false);
633  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['leftrear'], ceil($source_data_array['bitsvolume']/8), false);
634  }
635  if ($source_data_array['volumechange']['center'] || $source_data_array['peakvolume']['center'] ||
636  $source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
637  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['center'], ceil($source_data_array['bitsvolume']/8), false);
638  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['center'], ceil($source_data_array['bitsvolume']/8), false);
639  }
640  if ($source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
641  $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['bass'], ceil($source_data_array['bitsvolume']/8), false);
642  $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['bass'], ceil($source_data_array['bitsvolume']/8), false);
643  }
644  }
645  break;
646 
647  case 'EQU2':
648  // 4.12 EQU2 Equalisation (2) (ID3v2.4+ only)
649  // Interpolation method $xx
650  // $00 Band
651  // $01 Linear
652  // Identification <text string> $00
653  // The following is then repeated for every adjustment point
654  // Frequency $xx xx
655  // Volume adjustment $xx xx
656  if (($source_data_array['interpolationmethod'] < 0) || ($source_data_array['interpolationmethod'] > 1)) {
657  $this->errors[] = 'Invalid Interpolation Method byte in '.$frame_name.' ('.$source_data_array['interpolationmethod'].') (valid = 0 or 1)';
658  } else {
659  $framedata .= chr($source_data_array['interpolationmethod']);
660  $framedata .= str_replace("\x00", '', $source_data_array['description'])."\x00";
661  foreach ($source_data_array['data'] as $key => $val) {
662  $framedata .= getid3_lib::BigEndian2String(intval(round($key * 2)), 2, false);
663  $framedata .= getid3_lib::BigEndian2String($val, 2, false, true); // signed 16-bit
664  }
665  }
666  break;
667 
668  case 'EQUA':
669  // 4.12 EQUA Equalisation (ID3v2.3 only)
670  // Adjustment bits $xx
671  // This is followed by 2 bytes + ('adjustment bits' rounded up to the
672  // nearest byte) for every equalisation band in the following format,
673  // giving a frequency range of 0 - 32767Hz:
674  // Increment/decrement %x (MSB of the Frequency)
675  // Frequency (lower 15 bits)
676  // Adjustment $xx (xx ...)
677  if (!$this->IsWithinBitRange($source_data_array['bitsvolume'], 8, false)) {
678  $this->errors[] = 'Invalid Adjustment Bits byte in '.$frame_name.' ('.$source_data_array['bitsvolume'].') (range = 1 to 255)';
679  } else {
680  $framedata .= chr($source_data_array['adjustmentbits']);
681  foreach ($source_data_array as $key => $val) {
682  if ($key != 'bitsvolume') {
683  if (($key > 32767) || ($key < 0)) {
684  $this->errors[] = 'Invalid Frequency in '.$frame_name.' ('.$key.') (range = 0 to 32767)';
685  } else {
686  if ($val >= 0) {
687  // put MSB of frequency to 1 if increment, 0 if decrement
688  $key |= 0x8000;
689  }
690  $framedata .= getid3_lib::BigEndian2String($key, 2, false);
691  $framedata .= getid3_lib::BigEndian2String($val, ceil($source_data_array['adjustmentbits'] / 8), false);
692  }
693  }
694  }
695  }
696  break;
697 
698  case 'RVRB':
699  // 4.13 RVRB Reverb
700  // Reverb left (ms) $xx xx
701  // Reverb right (ms) $xx xx
702  // Reverb bounces, left $xx
703  // Reverb bounces, right $xx
704  // Reverb feedback, left to left $xx
705  // Reverb feedback, left to right $xx
706  // Reverb feedback, right to right $xx
707  // Reverb feedback, right to left $xx
708  // Premix left to right $xx
709  // Premix right to left $xx
710  if (!$this->IsWithinBitRange($source_data_array['left'], 16, false)) {
711  $this->errors[] = 'Invalid Reverb Left in '.$frame_name.' ('.$source_data_array['left'].') (range = 0 to 65535)';
712  } elseif (!$this->IsWithinBitRange($source_data_array['right'], 16, false)) {
713  $this->errors[] = 'Invalid Reverb Left in '.$frame_name.' ('.$source_data_array['right'].') (range = 0 to 65535)';
714  } elseif (!$this->IsWithinBitRange($source_data_array['bouncesL'], 8, false)) {
715  $this->errors[] = 'Invalid Reverb Bounces, Left in '.$frame_name.' ('.$source_data_array['bouncesL'].') (range = 0 to 255)';
716  } elseif (!$this->IsWithinBitRange($source_data_array['bouncesR'], 8, false)) {
717  $this->errors[] = 'Invalid Reverb Bounces, Right in '.$frame_name.' ('.$source_data_array['bouncesR'].') (range = 0 to 255)';
718  } elseif (!$this->IsWithinBitRange($source_data_array['feedbackLL'], 8, false)) {
719  $this->errors[] = 'Invalid Reverb Feedback, Left-To-Left in '.$frame_name.' ('.$source_data_array['feedbackLL'].') (range = 0 to 255)';
720  } elseif (!$this->IsWithinBitRange($source_data_array['feedbackLR'], 8, false)) {
721  $this->errors[] = 'Invalid Reverb Feedback, Left-To-Right in '.$frame_name.' ('.$source_data_array['feedbackLR'].') (range = 0 to 255)';
722  } elseif (!$this->IsWithinBitRange($source_data_array['feedbackRR'], 8, false)) {
723  $this->errors[] = 'Invalid Reverb Feedback, Right-To-Right in '.$frame_name.' ('.$source_data_array['feedbackRR'].') (range = 0 to 255)';
724  } elseif (!$this->IsWithinBitRange($source_data_array['feedbackRL'], 8, false)) {
725  $this->errors[] = 'Invalid Reverb Feedback, Right-To-Left in '.$frame_name.' ('.$source_data_array['feedbackRL'].') (range = 0 to 255)';
726  } elseif (!$this->IsWithinBitRange($source_data_array['premixLR'], 8, false)) {
727  $this->errors[] = 'Invalid Premix, Left-To-Right in '.$frame_name.' ('.$source_data_array['premixLR'].') (range = 0 to 255)';
728  } elseif (!$this->IsWithinBitRange($source_data_array['premixRL'], 8, false)) {
729  $this->errors[] = 'Invalid Premix, Right-To-Left in '.$frame_name.' ('.$source_data_array['premixRL'].') (range = 0 to 255)';
730  } else {
731  $framedata .= getid3_lib::BigEndian2String($source_data_array['left'], 2, false);
732  $framedata .= getid3_lib::BigEndian2String($source_data_array['right'], 2, false);
733  $framedata .= chr($source_data_array['bouncesL']);
734  $framedata .= chr($source_data_array['bouncesR']);
735  $framedata .= chr($source_data_array['feedbackLL']);
736  $framedata .= chr($source_data_array['feedbackLR']);
737  $framedata .= chr($source_data_array['feedbackRR']);
738  $framedata .= chr($source_data_array['feedbackRL']);
739  $framedata .= chr($source_data_array['premixLR']);
740  $framedata .= chr($source_data_array['premixRL']);
741  }
742  break;
743 
744  case 'APIC':
745  // 4.14 APIC Attached picture
746  // Text encoding $xx
747  // MIME type <text string> $00
748  // Picture type $xx
749  // Description <text string according to encoding> $00 (00)
750  // Picture data <binary data>
751  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
752  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
753  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
754  } elseif (!$this->ID3v2IsValidAPICpicturetype($source_data_array['picturetypeid'])) {
755  $this->errors[] = 'Invalid Picture Type byte in '.$frame_name.' ('.$source_data_array['picturetypeid'].') for ID3v2.'.$this->majorversion;
756  } elseif (($this->majorversion >= 3) && (!$this->ID3v2IsValidAPICimageformat($source_data_array['mime']))) {
757  $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].') for ID3v2.'.$this->majorversion;
758  } elseif (($source_data_array['mime'] == '-->') && (!$this->IsValidURL($source_data_array['data'], false, false))) {
759  //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
760  // probably should be an error, need to rewrite IsValidURL() to handle other encodings
761  $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
762  } else {
763  $framedata .= chr($source_data_array['encodingid']);
764  $framedata .= str_replace("\x00", '', $source_data_array['mime'])."\x00";
765  $framedata .= chr($source_data_array['picturetypeid']);
766  $framedata .= @$source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
767  $framedata .= $source_data_array['data'];
768  }
769  break;
770 
771  case 'GEOB':
772  // 4.15 GEOB General encapsulated object
773  // Text encoding $xx
774  // MIME type <text string> $00
775  // Filename <text string according to encoding> $00 (00)
776  // Content description <text string according to encoding> $00 (00)
777  // Encapsulated object <binary data>
778  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
779  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
780  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
781  } elseif (!$this->IsValidMIMEstring($source_data_array['mime'])) {
782  $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].')';
783  } elseif (!$source_data_array['description']) {
784  $this->errors[] = 'Missing Description in '.$frame_name;
785  } else {
786  $framedata .= chr($source_data_array['encodingid']);
787  $framedata .= str_replace("\x00", '', $source_data_array['mime'])."\x00";
788  $framedata .= $source_data_array['filename'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
789  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
790  $framedata .= $source_data_array['data'];
791  }
792  break;
793 
794  case 'PCNT':
795  // 4.16 PCNT Play counter
796  // When the counter reaches all one's, one byte is inserted in
797  // front of the counter thus making the counter eight bits bigger
798  // Counter $xx xx xx xx (xx ...)
799  $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
800  break;
801 
802  case 'POPM':
803  // 4.17 POPM Popularimeter
804  // When the counter reaches all one's, one byte is inserted in
805  // front of the counter thus making the counter eight bits bigger
806  // Email to user <text string> $00
807  // Rating $xx
808  // Counter $xx xx xx xx (xx ...)
809  if (!$this->IsWithinBitRange($source_data_array['rating'], 8, false)) {
810  $this->errors[] = 'Invalid Rating byte in '.$frame_name.' ('.$source_data_array['rating'].') (range = 0 to 255)';
811  } elseif (!IsValidEmail($source_data_array['email'])) {
812  $this->errors[] = 'Invalid Email in '.$frame_name.' ('.$source_data_array['email'].')';
813  } else {
814  $framedata .= str_replace("\x00", '', $source_data_array['email'])."\x00";
815  $framedata .= chr($source_data_array['rating']);
816  $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
817  }
818  break;
819 
820  case 'RBUF':
821  // 4.18 RBUF Recommended buffer size
822  // Buffer size $xx xx xx
823  // Embedded info flag %0000000x
824  // Offset to next tag $xx xx xx xx
825  if (!$this->IsWithinBitRange($source_data_array['buffersize'], 24, false)) {
826  $this->errors[] = 'Invalid Buffer Size in '.$frame_name;
827  } elseif (!$this->IsWithinBitRange($source_data_array['nexttagoffset'], 32, false)) {
828  $this->errors[] = 'Invalid Offset To Next Tag in '.$frame_name;
829  } else {
830  $framedata .= getid3_lib::BigEndian2String($source_data_array['buffersize'], 3, false);
831  $flag .= '0000000';
832  $flag .= $source_data_array['flags']['embededinfo'] ? '1' : '0';
833  $framedata .= chr(bindec($flag));
834  $framedata .= getid3_lib::BigEndian2String($source_data_array['nexttagoffset'], 4, false);
835  }
836  break;
837 
838  case 'AENC':
839  // 4.19 AENC Audio encryption
840  // Owner identifier <text string> $00
841  // Preview start $xx xx
842  // Preview length $xx xx
843  // Encryption info <binary data>
844  if (!$this->IsWithinBitRange($source_data_array['previewstart'], 16, false)) {
845  $this->errors[] = 'Invalid Preview Start in '.$frame_name.' ('.$source_data_array['previewstart'].')';
846  } elseif (!$this->IsWithinBitRange($source_data_array['previewlength'], 16, false)) {
847  $this->errors[] = 'Invalid Preview Length in '.$frame_name.' ('.$source_data_array['previewlength'].')';
848  } else {
849  $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
850  $framedata .= getid3_lib::BigEndian2String($source_data_array['previewstart'], 2, false);
851  $framedata .= getid3_lib::BigEndian2String($source_data_array['previewlength'], 2, false);
852  $framedata .= $source_data_array['encryptioninfo'];
853  }
854  break;
855 
856  case 'LINK':
857  // 4.20 LINK Linked information
858  // Frame identifier $xx xx xx xx
859  // URL <text string> $00
860  // ID and additional data <text string(s)>
861  if (!getid3_id3v2::IsValidID3v2FrameName($source_data_array['frameid'], $this->majorversion)) {
862  $this->errors[] = 'Invalid Frame Identifier in '.$frame_name.' ('.$source_data_array['frameid'].')';
863  } elseif (!$this->IsValidURL($source_data_array['data'], true, false)) {
864  //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
865  // probably should be an error, need to rewrite IsValidURL() to handle other encodings
866  $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
867  } elseif ((($source_data_array['frameid'] == 'AENC') || ($source_data_array['frameid'] == 'APIC') || ($source_data_array['frameid'] == 'GEOB') || ($source_data_array['frameid'] == 'TXXX')) && ($source_data_array['additionaldata'] == '')) {
868  $this->errors[] = 'Content Descriptor must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
869  } elseif (($source_data_array['frameid'] == 'USER') && (getid3_id3v2::LanguageLookup($source_data_array['additionaldata'], true) == '')) {
870  $this->errors[] = 'Language must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
871  } elseif (($source_data_array['frameid'] == 'PRIV') && ($source_data_array['additionaldata'] == '')) {
872  $this->errors[] = 'Owner Identifier must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
873  } elseif ((($source_data_array['frameid'] == 'COMM') || ($source_data_array['frameid'] == 'SYLT') || ($source_data_array['frameid'] == 'USLT')) && ((getid3_id3v2::LanguageLookup(substr($source_data_array['additionaldata'], 0, 3), true) == '') || (substr($source_data_array['additionaldata'], 3) == ''))) {
874  $this->errors[] = 'Language followed by Content Descriptor must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
875  } else {
876  $framedata .= $source_data_array['frameid'];
877  $framedata .= str_replace("\x00", '', $source_data_array['data'])."\x00";
878  switch ($source_data_array['frameid']) {
879  case 'COMM':
880  case 'SYLT':
881  case 'USLT':
882  case 'PRIV':
883  case 'USER':
884  case 'AENC':
885  case 'APIC':
886  case 'GEOB':
887  case 'TXXX':
888  $framedata .= $source_data_array['additionaldata'];
889  break;
890  case 'ASPI':
891  case 'ETCO':
892  case 'EQU2':
893  case 'MCID':
894  case 'MLLT':
895  case 'OWNE':
896  case 'RVA2':
897  case 'RVRB':
898  case 'SYTC':
899  case 'IPLS':
900  case 'RVAD':
901  case 'EQUA':
902  // no additional data required
903  break;
904  case 'RBUF':
905  if ($this->majorversion == 3) {
906  // no additional data required
907  } else {
908  $this->errors[] = $source_data_array['frameid'].' is not a valid Frame Identifier in '.$frame_name.' (in ID3v2.'.$this->majorversion.')';
909  }
910 
911  default:
912  if ((substr($source_data_array['frameid'], 0, 1) == 'T') || (substr($source_data_array['frameid'], 0, 1) == 'W')) {
913  // no additional data required
914  } else {
915  $this->errors[] = $source_data_array['frameid'].' is not a valid Frame Identifier in '.$frame_name.' (in ID3v2.'.$this->majorversion.')';
916  }
917  break;
918  }
919  }
920  break;
921 
922  case 'POSS':
923  // 4.21 POSS Position synchronisation frame (ID3v2.3+ only)
924  // Time stamp format $xx
925  // Position $xx (xx ...)
926  if (($source_data_array['timestampformat'] < 1) || ($source_data_array['timestampformat'] > 2)) {
927  $this->errors[] = 'Invalid Time Stamp Format in '.$frame_name.' ('.$source_data_array['timestampformat'].') (valid = 1 or 2)';
928  } elseif (!$this->IsWithinBitRange($source_data_array['position'], 32, false)) {
929  $this->errors[] = 'Invalid Position in '.$frame_name.' ('.$source_data_array['position'].') (range = 0 to 4294967295)';
930  } else {
931  $framedata .= chr($source_data_array['timestampformat']);
932  $framedata .= getid3_lib::BigEndian2String($source_data_array['position'], 4, false);
933  }
934  break;
935 
936  case 'USER':
937  // 4.22 USER Terms of use (ID3v2.3+ only)
938  // Text encoding $xx
939  // Language $xx xx xx
940  // The actual text <text string according to encoding>
941  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
942  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
943  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
944  } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
945  $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
946  } else {
947  $framedata .= chr($source_data_array['encodingid']);
948  $framedata .= strtolower($source_data_array['language']);
949  $framedata .= $source_data_array['data'];
950  }
951  break;
952 
953  case 'OWNE':
954  // 4.23 OWNE Ownership frame (ID3v2.3+ only)
955  // Text encoding $xx
956  // Price paid <text string> $00
957  // Date of purch. <text string>
958  // Seller <text string according to encoding>
959  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
960  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
961  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
962  } elseif (!$this->IsANumber($source_data_array['pricepaid']['value'], false)) {
963  $this->errors[] = 'Invalid Price Paid in '.$frame_name.' ('.$source_data_array['pricepaid']['value'].')';
964  } elseif (!$this->IsValidDateStampString($source_data_array['purchasedate'])) {
965  $this->errors[] = 'Invalid Date Of Purchase in '.$frame_name.' ('.$source_data_array['purchasedate'].') (format = YYYYMMDD)';
966  } else {
967  $framedata .= chr($source_data_array['encodingid']);
968  $framedata .= str_replace("\x00", '', $source_data_array['pricepaid']['value'])."\x00";
969  $framedata .= $source_data_array['purchasedate'];
970  $framedata .= $source_data_array['seller'];
971  }
972  break;
973 
974  case 'COMR':
975  // 4.24 COMR Commercial frame (ID3v2.3+ only)
976  // Text encoding $xx
977  // Price string <text string> $00
978  // Valid until <text string>
979  // Contact URL <text string> $00
980  // Received as $xx
981  // Name of seller <text string according to encoding> $00 (00)
982  // Description <text string according to encoding> $00 (00)
983  // Picture MIME type <string> $00
984  // Seller logo <binary data>
985  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
986  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
987  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
988  } elseif (!$this->IsValidDateStampString($source_data_array['pricevaliduntil'])) {
989  $this->errors[] = 'Invalid Valid Until date in '.$frame_name.' ('.$source_data_array['pricevaliduntil'].') (format = YYYYMMDD)';
990  } elseif (!$this->IsValidURL($source_data_array['contacturl'], false, true)) {
991  $this->errors[] = 'Invalid Contact URL in '.$frame_name.' ('.$source_data_array['contacturl'].') (allowed schemes: http, https, ftp, mailto)';
992  } elseif (!$this->ID3v2IsValidCOMRreceivedAs($source_data_array['receivedasid'])) {
993  $this->errors[] = 'Invalid Received As byte in '.$frame_name.' ('.$source_data_array['contacturl'].') (range = 0 to 8)';
994  } elseif (!$this->IsValidMIMEstring($source_data_array['mime'])) {
995  $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].')';
996  } else {
997  $framedata .= chr($source_data_array['encodingid']);
998  unset($pricestring);
999  foreach ($source_data_array['price'] as $key => $val) {
1000  if ($this->ID3v2IsValidPriceString($key.$val['value'])) {
1001  $pricestrings[] = $key.$val['value'];
1002  } else {
1003  $this->errors[] = 'Invalid Price String in '.$frame_name.' ('.$key.$val['value'].')';
1004  }
1005  }
1006  $framedata .= implode('/', $pricestrings);
1007  $framedata .= $source_data_array['pricevaliduntil'];
1008  $framedata .= str_replace("\x00", '', $source_data_array['contacturl'])."\x00";
1009  $framedata .= chr($source_data_array['receivedasid']);
1010  $framedata .= $source_data_array['sellername'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
1011  $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
1012  $framedata .= $source_data_array['mime']."\x00";
1013  $framedata .= $source_data_array['logo'];
1014  }
1015  break;
1016 
1017  case 'ENCR':
1018  // 4.25 ENCR Encryption method registration (ID3v2.3+ only)
1019  // Owner identifier <text string> $00
1020  // Method symbol $xx
1021  // Encryption data <binary data>
1022  if (!$this->IsWithinBitRange($source_data_array['methodsymbol'], 8, false)) {
1023  $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['methodsymbol'].') (range = 0 to 255)';
1024  } else {
1025  $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1026  $framedata .= ord($source_data_array['methodsymbol']);
1027  $framedata .= $source_data_array['data'];
1028  }
1029  break;
1030 
1031  case 'GRID':
1032  // 4.26 GRID Group identification registration (ID3v2.3+ only)
1033  // Owner identifier <text string> $00
1034  // Group symbol $xx
1035  // Group dependent data <binary data>
1036  if (!$this->IsWithinBitRange($source_data_array['groupsymbol'], 8, false)) {
1037  $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['groupsymbol'].') (range = 0 to 255)';
1038  } else {
1039  $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1040  $framedata .= ord($source_data_array['groupsymbol']);
1041  $framedata .= $source_data_array['data'];
1042  }
1043  break;
1044 
1045  case 'PRIV':
1046  // 4.27 PRIV Private frame (ID3v2.3+ only)
1047  // Owner identifier <text string> $00
1048  // The private data <binary data>
1049  $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1050  $framedata .= $source_data_array['data'];
1051  break;
1052 
1053  case 'SIGN':
1054  // 4.28 SIGN Signature frame (ID3v2.4+ only)
1055  // Group symbol $xx
1056  // Signature <binary data>
1057  if (!$this->IsWithinBitRange($source_data_array['groupsymbol'], 8, false)) {
1058  $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['groupsymbol'].') (range = 0 to 255)';
1059  } else {
1060  $framedata .= ord($source_data_array['groupsymbol']);
1061  $framedata .= $source_data_array['data'];
1062  }
1063  break;
1064 
1065  case 'SEEK':
1066  // 4.29 SEEK Seek frame (ID3v2.4+ only)
1067  // Minimum offset to next tag $xx xx xx xx
1068  if (!$this->IsWithinBitRange($source_data_array['data'], 32, false)) {
1069  $this->errors[] = 'Invalid Minimum Offset in '.$frame_name.' ('.$source_data_array['data'].') (range = 0 to 4294967295)';
1070  } else {
1071  $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
1072  }
1073  break;
1074 
1075  case 'ASPI':
1076  // 4.30 ASPI Audio seek point index (ID3v2.4+ only)
1077  // Indexed data start (S) $xx xx xx xx
1078  // Indexed data length (L) $xx xx xx xx
1079  // Number of index points (N) $xx xx
1080  // Bits per index point (b) $xx
1081  // Then for every index point the following data is included:
1082  // Fraction at index (Fi) $xx (xx)
1083  if (!$this->IsWithinBitRange($source_data_array['datastart'], 32, false)) {
1084  $this->errors[] = 'Invalid Indexed Data Start in '.$frame_name.' ('.$source_data_array['datastart'].') (range = 0 to 4294967295)';
1085  } elseif (!$this->IsWithinBitRange($source_data_array['datalength'], 32, false)) {
1086  $this->errors[] = 'Invalid Indexed Data Length in '.$frame_name.' ('.$source_data_array['datalength'].') (range = 0 to 4294967295)';
1087  } elseif (!$this->IsWithinBitRange($source_data_array['indexpoints'], 16, false)) {
1088  $this->errors[] = 'Invalid Number Of Index Points in '.$frame_name.' ('.$source_data_array['indexpoints'].') (range = 0 to 65535)';
1089  } elseif (!$this->IsWithinBitRange($source_data_array['bitsperpoint'], 8, false)) {
1090  $this->errors[] = 'Invalid Bits Per Index Point in '.$frame_name.' ('.$source_data_array['bitsperpoint'].') (range = 0 to 255)';
1091  } elseif ($source_data_array['indexpoints'] != count($source_data_array['indexes'])) {
1092  $this->errors[] = 'Number Of Index Points does not match actual supplied data in '.$frame_name;
1093  } else {
1094  $framedata .= getid3_lib::BigEndian2String($source_data_array['datastart'], 4, false);
1095  $framedata .= getid3_lib::BigEndian2String($source_data_array['datalength'], 4, false);
1096  $framedata .= getid3_lib::BigEndian2String($source_data_array['indexpoints'], 2, false);
1097  $framedata .= getid3_lib::BigEndian2String($source_data_array['bitsperpoint'], 1, false);
1098  foreach ($source_data_array['indexes'] as $key => $val) {
1099  $framedata .= getid3_lib::BigEndian2String($val, ceil($source_data_array['bitsperpoint'] / 8), false);
1100  }
1101  }
1102  break;
1103 
1104  case 'RGAD':
1105  // RGAD Replay Gain Adjustment
1106  // http://privatewww.essex.ac.uk/~djmrob/replaygain/
1107  // Peak Amplitude $xx $xx $xx $xx
1108  // Radio Replay Gain Adjustment %aaabbbcd %dddddddd
1109  // Audiophile Replay Gain Adjustment %aaabbbcd %dddddddd
1110  // a - name code
1111  // b - originator code
1112  // c - sign bit
1113  // d - replay gain adjustment
1114 
1115  if (($source_data_array['track_adjustment'] > 51) || ($source_data_array['track_adjustment'] < -51)) {
1116  $this->errors[] = 'Invalid Track Adjustment in '.$frame_name.' ('.$source_data_array['track_adjustment'].') (range = -51.0 to +51.0)';
1117  } elseif (($source_data_array['album_adjustment'] > 51) || ($source_data_array['album_adjustment'] < -51)) {
1118  $this->errors[] = 'Invalid Album Adjustment in '.$frame_name.' ('.$source_data_array['album_adjustment'].') (range = -51.0 to +51.0)';
1119  } elseif (!$this->ID3v2IsValidRGADname($source_data_array['raw']['track_name'])) {
1120  $this->errors[] = 'Invalid Track Name Code in '.$frame_name.' ('.$source_data_array['raw']['track_name'].') (range = 0 to 2)';
1121  } elseif (!$this->ID3v2IsValidRGADname($source_data_array['raw']['album_name'])) {
1122  $this->errors[] = 'Invalid Album Name Code in '.$frame_name.' ('.$source_data_array['raw']['album_name'].') (range = 0 to 2)';
1123  } elseif (!$this->ID3v2IsValidRGADoriginator($source_data_array['raw']['track_originator'])) {
1124  $this->errors[] = 'Invalid Track Originator Code in '.$frame_name.' ('.$source_data_array['raw']['track_originator'].') (range = 0 to 3)';
1125  } elseif (!$this->ID3v2IsValidRGADoriginator($source_data_array['raw']['album_originator'])) {
1126  $this->errors[] = 'Invalid Album Originator Code in '.$frame_name.' ('.$source_data_array['raw']['album_originator'].') (range = 0 to 3)';
1127  } else {
1128  $framedata .= getid3_lib::Float2String($source_data_array['peakamplitude'], 32);
1129  $framedata .= getid3_lib::RGADgainString($source_data_array['raw']['track_name'], $source_data_array['raw']['track_originator'], $source_data_array['track_adjustment']);
1130  $framedata .= getid3_lib::RGADgainString($source_data_array['raw']['album_name'], $source_data_array['raw']['album_originator'], $source_data_array['album_adjustment']);
1131  }
1132  break;
1133 
1134  default:
1135  if ($frame_name{0} == 'T') {
1136  // 4.2. T??? Text information frames
1137  // Text encoding $xx
1138  // Information <text string(s) according to encoding>
1139  $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
1140  if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
1141  $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
1142  } else {
1143  $framedata .= chr($source_data_array['encodingid']);
1144  $framedata .= $source_data_array['data'];
1145  }
1146  } elseif ($frame_name{0} == 'W') {
1147  // 4.3. W??? URL link frames
1148  // URL <text string>
1149  if (!$this->IsValidURL($source_data_array['data'], false, false)) {
1150  //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
1151  // probably should be an error, need to rewrite IsValidURL() to handle other encodings
1152  $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
1153  } else {
1154  $framedata .= $source_data_array['data'];
1155  }
1156  } else {
1157  $this->errors[] = $frame_name.' not yet supported in $this->GenerateID3v2FrameData()';
1158  }
1159  break;
1160  }
1161  }
1162  if (!empty($this->errors)) {
1163  return false;
1164  }
1165  return $framedata;
1166  }
1167 
1168  function ID3v2FrameIsAllowed($frame_name, $source_data_array) {
1169  static $PreviousFrames = array();
1170 
1171  if ($frame_name === null) {
1172  // if the writing functions are called multiple times, the static array needs to be
1173  // cleared - this can be done by calling $this->ID3v2FrameIsAllowed(null, '')
1174  $PreviousFrames = array();
1175  return true;
1176  }
1177 
1178  if ($this->majorversion == 4) {
1179  switch ($frame_name) {
1180  case 'UFID':
1181  case 'AENC':
1182  case 'ENCR':
1183  case 'GRID':
1184  if (!isset($source_data_array['ownerid'])) {
1185  $this->errors[] = '[ownerid] not specified for '.$frame_name;
1186  } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1187  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1188  } else {
1189  $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1190  }
1191  break;
1192 
1193  case 'TXXX':
1194  case 'WXXX':
1195  case 'RVA2':
1196  case 'EQU2':
1197  case 'APIC':
1198  case 'GEOB':
1199  if (!isset($source_data_array['description'])) {
1200  $this->errors[] = '[description] not specified for '.$frame_name;
1201  } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1202  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1203  } else {
1204  $PreviousFrames[] = $frame_name.$source_data_array['description'];
1205  }
1206  break;
1207 
1208  case 'USER':
1209  if (!isset($source_data_array['language'])) {
1210  $this->errors[] = '[language] not specified for '.$frame_name;
1211  } elseif (in_array($frame_name.$source_data_array['language'], $PreviousFrames)) {
1212  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language ('.$source_data_array['language'].')';
1213  } else {
1214  $PreviousFrames[] = $frame_name.$source_data_array['language'];
1215  }
1216  break;
1217 
1218  case 'USLT':
1219  case 'SYLT':
1220  case 'COMM':
1221  if (!isset($source_data_array['language'])) {
1222  $this->errors[] = '[language] not specified for '.$frame_name;
1223  } elseif (!isset($source_data_array['description'])) {
1224  $this->errors[] = '[description] not specified for '.$frame_name;
1225  } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1226  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1227  } else {
1228  $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1229  }
1230  break;
1231 
1232  case 'POPM':
1233  if (!isset($source_data_array['email'])) {
1234  $this->errors[] = '[email] not specified for '.$frame_name;
1235  } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1236  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1237  } else {
1238  $PreviousFrames[] = $frame_name.$source_data_array['email'];
1239  }
1240  break;
1241 
1242  case 'IPLS':
1243  case 'MCDI':
1244  case 'ETCO':
1245  case 'MLLT':
1246  case 'SYTC':
1247  case 'RVRB':
1248  case 'PCNT':
1249  case 'RBUF':
1250  case 'POSS':
1251  case 'OWNE':
1252  case 'SEEK':
1253  case 'ASPI':
1254  case 'RGAD':
1255  if (in_array($frame_name, $PreviousFrames)) {
1256  $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1257  } else {
1258  $PreviousFrames[] = $frame_name;
1259  }
1260  break;
1261 
1262  case 'LINK':
1263  // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1264  // but right now it just allows one linked frame of each type, to be safe.
1265  if (!isset($source_data_array['frameid'])) {
1266  $this->errors[] = '[frameid] not specified for '.$frame_name;
1267  } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1268  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1269  } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1270  // no links to singleton tags
1271  $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1272  } else {
1273  $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1274  $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1275  }
1276  break;
1277 
1278  case 'COMR':
1279  // There may be more than one 'commercial frame' in a tag, but no two may be identical
1280  // Checking isn't implemented at all (yet) - just assumes that it's OK.
1281  break;
1282 
1283  case 'PRIV':
1284  case 'SIGN':
1285  if (!isset($source_data_array['ownerid'])) {
1286  $this->errors[] = '[ownerid] not specified for '.$frame_name;
1287  } elseif (!isset($source_data_array['data'])) {
1288  $this->errors[] = '[data] not specified for '.$frame_name;
1289  } elseif (in_array($frame_name.$source_data_array['ownerid'].$source_data_array['data'], $PreviousFrames)) {
1290  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID + Data ('.$source_data_array['ownerid'].' + '.$source_data_array['data'].')';
1291  } else {
1292  $PreviousFrames[] = $frame_name.$source_data_array['ownerid'].$source_data_array['data'];
1293  }
1294  break;
1295 
1296  default:
1297  if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1298  $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1299  }
1300  break;
1301  }
1302 
1303  } elseif ($this->majorversion == 3) {
1304 
1305  switch ($frame_name) {
1306  case 'UFID':
1307  case 'AENC':
1308  case 'ENCR':
1309  case 'GRID':
1310  if (!isset($source_data_array['ownerid'])) {
1311  $this->errors[] = '[ownerid] not specified for '.$frame_name;
1312  } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1313  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1314  } else {
1315  $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1316  }
1317  break;
1318 
1319  case 'TXXX':
1320  case 'WXXX':
1321  case 'APIC':
1322  case 'GEOB':
1323  if (!isset($source_data_array['description'])) {
1324  $this->errors[] = '[description] not specified for '.$frame_name;
1325  } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1326  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1327  } else {
1328  $PreviousFrames[] = $frame_name.$source_data_array['description'];
1329  }
1330  break;
1331 
1332  case 'USER':
1333  if (!isset($source_data_array['language'])) {
1334  $this->errors[] = '[language] not specified for '.$frame_name;
1335  } elseif (in_array($frame_name.$source_data_array['language'], $PreviousFrames)) {
1336  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language ('.$source_data_array['language'].')';
1337  } else {
1338  $PreviousFrames[] = $frame_name.$source_data_array['language'];
1339  }
1340  break;
1341 
1342  case 'USLT':
1343  case 'SYLT':
1344  case 'COMM':
1345  if (!isset($source_data_array['language'])) {
1346  $this->errors[] = '[language] not specified for '.$frame_name;
1347  } elseif (!isset($source_data_array['description'])) {
1348  $this->errors[] = '[description] not specified for '.$frame_name;
1349  } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1350  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1351  } else {
1352  $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1353  }
1354  break;
1355 
1356  case 'POPM':
1357  if (!isset($source_data_array['email'])) {
1358  $this->errors[] = '[email] not specified for '.$frame_name;
1359  } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1360  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1361  } else {
1362  $PreviousFrames[] = $frame_name.$source_data_array['email'];
1363  }
1364  break;
1365 
1366  case 'IPLS':
1367  case 'MCDI':
1368  case 'ETCO':
1369  case 'MLLT':
1370  case 'SYTC':
1371  case 'RVAD':
1372  case 'EQUA':
1373  case 'RVRB':
1374  case 'PCNT':
1375  case 'RBUF':
1376  case 'POSS':
1377  case 'OWNE':
1378  case 'RGAD':
1379  if (in_array($frame_name, $PreviousFrames)) {
1380  $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1381  } else {
1382  $PreviousFrames[] = $frame_name;
1383  }
1384  break;
1385 
1386  case 'LINK':
1387  // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1388  // but right now it just allows one linked frame of each type, to be safe.
1389  if (!isset($source_data_array['frameid'])) {
1390  $this->errors[] = '[frameid] not specified for '.$frame_name;
1391  } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1392  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1393  } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1394  // no links to singleton tags
1395  $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1396  } else {
1397  $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1398  $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1399  }
1400  break;
1401 
1402  case 'COMR':
1403  // There may be more than one 'commercial frame' in a tag, but no two may be identical
1404  // Checking isn't implemented at all (yet) - just assumes that it's OK.
1405  break;
1406 
1407  case 'PRIV':
1408  if (!isset($source_data_array['ownerid'])) {
1409  $this->errors[] = '[ownerid] not specified for '.$frame_name;
1410  } elseif (!isset($source_data_array['data'])) {
1411  $this->errors[] = '[data] not specified for '.$frame_name;
1412  } elseif (in_array($frame_name.$source_data_array['ownerid'].$source_data_array['data'], $PreviousFrames)) {
1413  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID + Data ('.$source_data_array['ownerid'].' + '.$source_data_array['data'].')';
1414  } else {
1415  $PreviousFrames[] = $frame_name.$source_data_array['ownerid'].$source_data_array['data'];
1416  }
1417  break;
1418 
1419  default:
1420  if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1421  $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1422  }
1423  break;
1424  }
1425 
1426  } elseif ($this->majorversion == 2) {
1427 
1428  switch ($frame_name) {
1429  case 'UFI':
1430  case 'CRM':
1431  case 'CRA':
1432  if (!isset($source_data_array['ownerid'])) {
1433  $this->errors[] = '[ownerid] not specified for '.$frame_name;
1434  } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1435  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1436  } else {
1437  $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1438  }
1439  break;
1440 
1441  case 'TXX':
1442  case 'WXX':
1443  case 'PIC':
1444  case 'GEO':
1445  if (!isset($source_data_array['description'])) {
1446  $this->errors[] = '[description] not specified for '.$frame_name;
1447  } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1448  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1449  } else {
1450  $PreviousFrames[] = $frame_name.$source_data_array['description'];
1451  }
1452  break;
1453 
1454  case 'ULT':
1455  case 'SLT':
1456  case 'COM':
1457  if (!isset($source_data_array['language'])) {
1458  $this->errors[] = '[language] not specified for '.$frame_name;
1459  } elseif (!isset($source_data_array['description'])) {
1460  $this->errors[] = '[description] not specified for '.$frame_name;
1461  } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1462  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1463  } else {
1464  $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1465  }
1466  break;
1467 
1468  case 'POP':
1469  if (!isset($source_data_array['email'])) {
1470  $this->errors[] = '[email] not specified for '.$frame_name;
1471  } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1472  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1473  } else {
1474  $PreviousFrames[] = $frame_name.$source_data_array['email'];
1475  }
1476  break;
1477 
1478  case 'IPL':
1479  case 'MCI':
1480  case 'ETC':
1481  case 'MLL':
1482  case 'STC':
1483  case 'RVA':
1484  case 'EQU':
1485  case 'REV':
1486  case 'CNT':
1487  case 'BUF':
1488  if (in_array($frame_name, $PreviousFrames)) {
1489  $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1490  } else {
1491  $PreviousFrames[] = $frame_name;
1492  }
1493  break;
1494 
1495  case 'LNK':
1496  // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1497  // but right now it just allows one linked frame of each type, to be safe.
1498  if (!isset($source_data_array['frameid'])) {
1499  $this->errors[] = '[frameid] not specified for '.$frame_name;
1500  } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1501  $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1502  } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1503  // no links to singleton tags
1504  $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1505  } else {
1506  $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1507  $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1508  }
1509  break;
1510 
1511  default:
1512  if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1513  $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1514  }
1515  break;
1516  }
1517  }
1518 
1519  if (!empty($this->errors)) {
1520  return false;
1521  }
1522  return true;
1523  }
1524 
1525  function GenerateID3v2Tag($noerrorsonly=true) {
1526  $this->ID3v2FrameIsAllowed(null, ''); // clear static array in case this isn't the first call to $this->GenerateID3v2Tag()
1527 
1528  $tagstring = '';
1529  if (is_array($this->tag_data)) {
1530  foreach ($this->tag_data as $frame_name => $frame_rawinputdata) {
1531  foreach ($frame_rawinputdata as $irrelevantindex => $source_data_array) {
1532  if (getid3_id3v2::IsValidID3v2FrameName($frame_name, $this->majorversion)) {
1533  unset($frame_length);
1534  unset($frame_flags);
1535  $frame_data = false;
1536  if ($this->ID3v2FrameIsAllowed($frame_name, $source_data_array)) {
1537  if ($frame_data = $this->GenerateID3v2FrameData($frame_name, $source_data_array)) {
1538  $FrameUnsynchronisation = false;
1539  if ($this->majorversion >= 4) {
1540  // frame-level unsynchronisation
1541  $unsynchdata = $frame_data;
1542  if ($this->id3v2_use_unsynchronisation) {
1543  $unsynchdata = $this->Unsynchronise($frame_data);
1544  }
1545  if (strlen($unsynchdata) != strlen($frame_data)) {
1546  // unsynchronisation needed
1547  $FrameUnsynchronisation = true;
1548  $frame_data = $unsynchdata;
1549  if (isset($TagUnsynchronisation) && $TagUnsynchronisation === false) {
1550  // only set to true if ALL frames are unsynchronised
1551  } else {
1552  $TagUnsynchronisation = true;
1553  }
1554  } else {
1555  if (isset($TagUnsynchronisation)) {
1556  $TagUnsynchronisation = false;
1557  }
1558  }
1559  unset($unsynchdata);
1560 
1561  $frame_length = getid3_lib::BigEndian2String(strlen($frame_data), 4, true);
1562  } else {
1563  $frame_length = getid3_lib::BigEndian2String(strlen($frame_data), 4, false);
1564  }
1565  $frame_flags = $this->GenerateID3v2FrameFlags($this->ID3v2FrameFlagsLookupTagAlter($frame_name), $this->ID3v2FrameFlagsLookupFileAlter($frame_name), false, false, false, false, $FrameUnsynchronisation, false);
1566  }
1567  } else {
1568  $this->errors[] = 'Frame "'.$frame_name.'" is NOT allowed';
1569  }
1570  if ($frame_data === false) {
1571  $this->errors[] = '$this->GenerateID3v2FrameData() failed for "'.$frame_name.'"';
1572  if ($noerrorsonly) {
1573  return false;
1574  } else {
1575  unset($frame_name);
1576  }
1577  }
1578  } else {
1579  // ignore any invalid frame names, including 'title', 'header', etc
1580  $this->warnings[] = 'Ignoring invalid ID3v2 frame type: "'.$frame_name.'"';
1581  unset($frame_name);
1582  unset($frame_length);
1583  unset($frame_flags);
1584  unset($frame_data);
1585  }
1586  if (isset($frame_name) && isset($frame_length) && isset($frame_flags) && isset($frame_data)) {
1587  $tagstring .= $frame_name.$frame_length.$frame_flags.$frame_data;
1588  }
1589  }
1590  }
1591 
1592  if (!isset($TagUnsynchronisation)) {
1593  $TagUnsynchronisation = false;
1594  }
1595  if (($this->majorversion <= 3) && $this->id3v2_use_unsynchronisation) {
1596  // tag-level unsynchronisation
1597  $unsynchdata = $this->Unsynchronise($tagstring);
1598  if (strlen($unsynchdata) != strlen($tagstring)) {
1599  // unsynchronisation needed
1600  $TagUnsynchronisation = true;
1601  $tagstring = $unsynchdata;
1602  }
1603  }
1604 
1605  while ($this->paddedlength < (strlen($tagstring) + getid3_id3v2::ID3v2HeaderLength($this->majorversion))) {
1606  $this->paddedlength += 1024;
1607  }
1608 
1609  $footer = false; // ID3v2 footers not yet supported in getID3()
1610  if (!$footer && ($this->paddedlength > (strlen($tagstring) + getid3_id3v2::ID3v2HeaderLength($this->majorversion)))) {
1611  // pad up to $paddedlength bytes if unpadded tag is shorter than $paddedlength
1612  // "Furthermore it MUST NOT have any padding when a tag footer is added to the tag."
1613  $tagstring .= @str_repeat("\x00", $this->paddedlength - strlen($tagstring) - getid3_id3v2::ID3v2HeaderLength($this->majorversion));
1614  }
1615  if ($this->id3v2_use_unsynchronisation && (substr($tagstring, strlen($tagstring) - 1, 1) == "\xFF")) {
1616  // special unsynchronisation case:
1617  // if last byte == $FF then appended a $00
1618  $TagUnsynchronisation = true;
1619  $tagstring .= "\x00";
1620  }
1621 
1622  $tagheader = 'ID3';
1623  $tagheader .= chr($this->majorversion);
1624  $tagheader .= chr($this->minorversion);
1625  $tagheader .= $this->GenerateID3v2TagFlags(array('unsynchronisation'=>$TagUnsynchronisation));
1626  $tagheader .= getid3_lib::BigEndian2String(strlen($tagstring), 4, true);
1627 
1628  return $tagheader.$tagstring;
1629  }
1630  $this->errors[] = 'tag_data is not an array in GenerateID3v2Tag()';
1631  return false;
1632  }
1633 
1634  function ID3v2IsValidPriceString($pricestring) {
1635  if (getid3_id3v2::LanguageLookup(substr($pricestring, 0, 3), true) == '') {
1636  return false;
1637  } elseif (!$this->IsANumber(substr($pricestring, 3), true)) {
1638  return false;
1639  }
1640  return true;
1641  }
1642 
1643  function ID3v2FrameFlagsLookupTagAlter($framename) {
1644  // unfinished
1645  switch ($framename) {
1646  case 'RGAD':
1647  $allow = true;
1648  default:
1649  $allow = false;
1650  break;
1651  }
1652  return $allow;
1653  }
1654 
1655  function ID3v2FrameFlagsLookupFileAlter($framename) {
1656  // unfinished
1657  switch ($framename) {
1658  case 'RGAD':
1659  return false;
1660  break;
1661 
1662  default:
1663  return false;
1664  break;
1665  }
1666  }
1667 
1668  function ID3v2IsValidETCOevent($eventid) {
1669  if (($eventid < 0) || ($eventid > 0xFF)) {
1670  // outside range of 1 byte
1671  return false;
1672  } elseif (($eventid >= 0xF0) && ($eventid <= 0xFC)) {
1673  // reserved for future use
1674  return false;
1675  } elseif (($eventid >= 0x17) && ($eventid <= 0xDF)) {
1676  // reserved for future use
1677  return false;
1678  } elseif (($eventid >= 0x0E) && ($eventid <= 0x16) && ($this->majorversion == 2)) {
1679  // not defined in ID3v2.2
1680  return false;
1681  } elseif (($eventid >= 0x15) && ($eventid <= 0x16) && ($this->majorversion == 3)) {
1682  // not defined in ID3v2.3
1683  return false;
1684  }
1685  return true;
1686  }
1687 
1688  function ID3v2IsValidSYLTtype($contenttype) {
1689  if (($contenttype >= 0) && ($contenttype <= 8) && ($this->majorversion == 4)) {
1690  return true;
1691  } elseif (($contenttype >= 0) && ($contenttype <= 6) && ($this->majorversion == 3)) {
1692  return true;
1693  }
1694  return false;
1695  }
1696 
1697  function ID3v2IsValidRVA2channeltype($channeltype) {
1698  if (($channeltype >= 0) && ($channeltype <= 8) && ($this->majorversion == 4)) {
1699  return true;
1700  }
1701  return false;
1702  }
1703 
1704  function ID3v2IsValidAPICpicturetype($picturetype) {
1705  if (($picturetype >= 0) && ($picturetype <= 0x14) && ($this->majorversion >= 2) && ($this->majorversion <= 4)) {
1706  return true;
1707  }
1708  return false;
1709  }
1710 
1711  function ID3v2IsValidAPICimageformat($imageformat) {
1712  if ($imageformat == '-->') {
1713  return true;
1714  } elseif ($this->majorversion == 2) {
1715  if ((strlen($imageformat) == 3) && ($imageformat == strtoupper($imageformat))) {
1716  return true;
1717  }
1718  } elseif (($this->majorversion == 3) || ($this->majorversion == 4)) {
1719  if ($this->IsValidMIMEstring($imageformat)) {
1720  return true;
1721  }
1722  }
1723  return false;
1724  }
1725 
1726  function ID3v2IsValidCOMRreceivedAs($receivedas) {
1727  if (($this->majorversion >= 3) && ($receivedas >= 0) && ($receivedas <= 8)) {
1728  return true;
1729  }
1730  return false;
1731  }
1732 
1733  function ID3v2IsValidRGADname($RGADname) {
1734  if (($RGADname >= 0) && ($RGADname <= 2)) {
1735  return true;
1736  }
1737  return false;
1738  }
1739 
1740  function ID3v2IsValidRGADoriginator($RGADoriginator) {
1741  if (($RGADoriginator >= 0) && ($RGADoriginator <= 3)) {
1742  return true;
1743  }
1744  return false;
1745  }
1746 
1747  function ID3v2IsValidTextEncoding($textencodingbyte) {
1748  static $ID3v2IsValidTextEncoding_cache = array(
1749  2 => array(true, true),
1750  3 => array(true, true),
1751  4 => array(true, true, true, true));
1752  return isset($ID3v2IsValidTextEncoding_cache[$this->majorversion][$textencodingbyte]);
1753  }
1754 
1755  function Unsynchronise($data) {
1756  // Whenever a false synchronisation is found within the tag, one zeroed
1757  // byte is inserted after the first false synchronisation byte. The
1758  // format of a correct sync that should be altered by ID3 encoders is as
1759  // follows:
1760  // %11111111 111xxxxx
1761  // And should be replaced with:
1762  // %11111111 00000000 111xxxxx
1763  // This has the side effect that all $FF 00 combinations have to be
1764  // altered, so they won't be affected by the decoding process. Therefore
1765  // all the $FF 00 combinations have to be replaced with the $FF 00 00
1766  // combination during the unsynchronisation.
1767 
1768  $data = str_replace("\xFF\x00", "\xFF\x00\x00", $data);
1769  $unsyncheddata = '';
1770  $datalength = strlen($data);
1771  for ($i = 0; $i < $datalength; $i++) {
1772  $thischar = $data{$i};
1773  $unsyncheddata .= $thischar;
1774  if ($thischar == "\xFF") {
1775  $nextchar = ord($data{$i + 1});
1776  if (($nextchar & 0xE0) == 0xE0) {
1777  // previous byte = 11111111, this byte = 111?????
1778  $unsyncheddata .= "\x00";
1779  }
1780  }
1781  }
1782  return $unsyncheddata;
1783  }
1784 
1785  function is_hash($var) {
1786  // written by dev-nullØchristophe*vg
1787  // taken from http://www.php.net/manual/en/function.array-merge-recursive.php
1788  if (is_array($var)) {
1789  $keys = array_keys($var);
1790  $all_num = true;
1791  for ($i = 0; $i < count($keys); $i++) {
1792  if (is_string($keys[$i])) {
1793  return true;
1794  }
1795  }
1796  }
1797  return false;
1798  }
1799 
1800  function array_join_merge($arr1, $arr2) {
1801  // written by dev-nullØchristophe*vg
1802  // taken from http://www.php.net/manual/en/function.array-merge-recursive.php
1803  if (is_array($arr1) && is_array($arr2)) {
1804  // the same -> merge
1805  $new_array = array();
1806 
1807  if ($this->is_hash($arr1) && $this->is_hash($arr2)) {
1808  // hashes -> merge based on keys
1809  $keys = array_merge(array_keys($arr1), array_keys($arr2));
1810  foreach ($keys as $key) {
1811  $new_array[$key] = $this->array_join_merge(@$arr1[$key], @$arr2[$key]);
1812  }
1813  } else {
1814  // two real arrays -> merge
1815  $new_array = array_reverse(array_unique(array_reverse(array_merge($arr1, $arr2))));
1816  }
1817  return $new_array;
1818  } else {
1819  // not the same ... take new one if defined, else the old one stays
1820  return $arr2 ? $arr2 : $arr1;
1821  }
1822  }
1823 
1824  function IsValidMIMEstring($mimestring) {
1825  if ((strlen($mimestring) >= 3) && (strpos($mimestring, '/') > 0) && (strpos($mimestring, '/') < (strlen($mimestring) - 1))) {
1826  return true;
1827  }
1828  return false;
1829  }
1830 
1831  function IsWithinBitRange($number, $maxbits, $signed=false) {
1832  if ($signed) {
1833  if (($number > (0 - pow(2, $maxbits - 1))) && ($number <= pow(2, $maxbits - 1))) {
1834  return true;
1835  }
1836  } else {
1837  if (($number >= 0) && ($number <= pow(2, $maxbits))) {
1838  return true;
1839  }
1840  }
1841  return false;
1842  }
1843 
1844  function safe_parse_url($url) {
1845  $parts = @parse_url($url);
1846  $parts['scheme'] = (isset($parts['scheme']) ? $parts['scheme'] : '');
1847  $parts['host'] = (isset($parts['host']) ? $parts['host'] : '');
1848  $parts['user'] = (isset($parts['user']) ? $parts['user'] : '');
1849  $parts['pass'] = (isset($parts['pass']) ? $parts['pass'] : '');
1850  $parts['path'] = (isset($parts['path']) ? $parts['path'] : '');
1851  $parts['query'] = (isset($parts['query']) ? $parts['query'] : '');
1852  return $parts;
1853  }
1854 
1855  function IsValidURL($url, $allowUserPass=false) {
1856  if ($url == '') {
1857  return false;
1858  }
1859  if ($allowUserPass !== true) {
1860  if (strstr($url, '@')) {
1861  // in the format http://user:pass@example.com or http://user@example.com
1862  // but could easily be somebody incorrectly entering an email address in place of a URL
1863  return false;
1864  }
1865  }
1866  if ($parts = $this->safe_parse_url($url)) {
1867  if (($parts['scheme'] != 'http') && ($parts['scheme'] != 'https') && ($parts['scheme'] != 'ftp') && ($parts['scheme'] != 'gopher')) {
1868  return false;
1869  } elseif (!eregi("^[[:alnum:]]([-.]?[0-9a-z])*\.[a-z]{2,3}$", $parts['host'], $regs) && !IsValidDottedIP($parts['host'])) {
1870  return false;
1871  } elseif (!eregi("^([[:alnum:]-]|[\_])*$", $parts['user'], $regs)) {
1872  return false;
1873  } elseif (!eregi("^([[:alnum:]-]|[\_])*$", $parts['pass'], $regs)) {
1874  return false;
1875  } elseif (!eregi("^[[:alnum:]/_\.@~-]*$", $parts['path'], $regs)) {
1876  return false;
1877  } elseif (!eregi("^[[:alnum:]?&=+:;_()%#/,\.-]*$", $parts['query'], $regs)) {
1878  return false;
1879  } else {
1880  return true;
1881  }
1882  }
1883  return false;
1884  }
1885 
1886  function ID3v2ShortFrameNameLookup($majorversion, $long_description) {
1887  $long_description = str_replace(' ', '_', strtolower(trim($long_description)));
1888  static $ID3v2ShortFrameNameLookup = array();
1889  if (empty($ID3v2ShortFrameNameLookup)) {
1890 
1891  // The following are unique to ID3v2.2
1892  $ID3v2ShortFrameNameLookup[2]['comment'] = 'COM';
1893  $ID3v2ShortFrameNameLookup[2]['album'] = 'TAL';
1894  $ID3v2ShortFrameNameLookup[2]['beats_per_minute'] = 'TBP';
1895  $ID3v2ShortFrameNameLookup[2]['composer'] = 'TCM';
1896  $ID3v2ShortFrameNameLookup[2]['genre'] = 'TCO';
1897  $ID3v2ShortFrameNameLookup[2]['copyright'] = 'TCR';
1898  $ID3v2ShortFrameNameLookup[2]['encoded_by'] = 'TEN';
1899  $ID3v2ShortFrameNameLookup[2]['language'] = 'TLA';
1900  $ID3v2ShortFrameNameLookup[2]['length'] = 'TLE';
1901  $ID3v2ShortFrameNameLookup[2]['original_artist'] = 'TOA';
1902  $ID3v2ShortFrameNameLookup[2]['original_filename'] = 'TOF';
1903  $ID3v2ShortFrameNameLookup[2]['original_lyricist'] = 'TOL';
1904  $ID3v2ShortFrameNameLookup[2]['original_album_title'] = 'TOT';
1905  $ID3v2ShortFrameNameLookup[2]['artist'] = 'TP1';
1906  $ID3v2ShortFrameNameLookup[2]['band'] = 'TP2';
1907  $ID3v2ShortFrameNameLookup[2]['conductor'] = 'TP3';
1908  $ID3v2ShortFrameNameLookup[2]['remixer'] = 'TP4';
1909  $ID3v2ShortFrameNameLookup[2]['publisher'] = 'TPB';
1910  $ID3v2ShortFrameNameLookup[2]['isrc'] = 'TRC';
1911  $ID3v2ShortFrameNameLookup[2]['tracknumber'] = 'TRK';
1912  $ID3v2ShortFrameNameLookup[2]['size'] = 'TSI';
1913  $ID3v2ShortFrameNameLookup[2]['encoder_settings'] = 'TSS';
1914  $ID3v2ShortFrameNameLookup[2]['description'] = 'TT1';
1915  $ID3v2ShortFrameNameLookup[2]['title'] = 'TT2';
1916  $ID3v2ShortFrameNameLookup[2]['subtitle'] = 'TT3';
1917  $ID3v2ShortFrameNameLookup[2]['lyricist'] = 'TXT';
1918  $ID3v2ShortFrameNameLookup[2]['user_text'] = 'TXX';
1919  $ID3v2ShortFrameNameLookup[2]['year'] = 'TYE';
1920  $ID3v2ShortFrameNameLookup[2]['unique_file_identifier'] = 'UFI';
1921  $ID3v2ShortFrameNameLookup[2]['unsynchronised_lyrics'] = 'ULT';
1922  $ID3v2ShortFrameNameLookup[2]['url_file'] = 'WAF';
1923  $ID3v2ShortFrameNameLookup[2]['url_artist'] = 'WAR';
1924  $ID3v2ShortFrameNameLookup[2]['url_source'] = 'WAS';
1925  $ID3v2ShortFrameNameLookup[2]['copyright_information'] = 'WCP';
1926  $ID3v2ShortFrameNameLookup[2]['url_publisher'] = 'WPB';
1927  $ID3v2ShortFrameNameLookup[2]['url_user'] = 'WXX';
1928 
1929  // The following are common to ID3v2.3 and ID3v2.4
1930  $ID3v2ShortFrameNameLookup[3]['audio_encryption'] = 'AENC';
1931  $ID3v2ShortFrameNameLookup[3]['attached_picture'] = 'APIC';
1932  $ID3v2ShortFrameNameLookup[3]['comment'] = 'COMM';
1933  $ID3v2ShortFrameNameLookup[3]['commercial'] = 'COMR';
1934  $ID3v2ShortFrameNameLookup[3]['encryption_method_registration'] = 'ENCR';
1935  $ID3v2ShortFrameNameLookup[3]['event_timing_codes'] = 'ETCO';
1936  $ID3v2ShortFrameNameLookup[3]['general_encapsulated_object'] = 'GEOB';
1937  $ID3v2ShortFrameNameLookup[3]['group_identification_registration'] = 'GRID';
1938  $ID3v2ShortFrameNameLookup[3]['linked_information'] = 'LINK';
1939  $ID3v2ShortFrameNameLookup[3]['music_cd_identifier'] = 'MCDI';
1940  $ID3v2ShortFrameNameLookup[3]['mpeg_location_lookup_table'] = 'MLLT';
1941  $ID3v2ShortFrameNameLookup[3]['ownership'] = 'OWNE';
1942  $ID3v2ShortFrameNameLookup[3]['play_counter'] = 'PCNT';
1943  $ID3v2ShortFrameNameLookup[3]['popularimeter'] = 'POPM';
1944  $ID3v2ShortFrameNameLookup[3]['position_synchronisation'] = 'POSS';
1945  $ID3v2ShortFrameNameLookup[3]['private'] = 'PRIV';
1946  $ID3v2ShortFrameNameLookup[3]['recommended_buffer_size'] = 'RBUF';
1947  $ID3v2ShortFrameNameLookup[3]['reverb'] = 'RVRB';
1948  $ID3v2ShortFrameNameLookup[3]['synchronised_lyrics'] = 'SYLT';
1949  $ID3v2ShortFrameNameLookup[3]['synchronised_tempo_codes'] = 'SYTC';
1950  $ID3v2ShortFrameNameLookup[3]['album'] = 'TALB';
1951  $ID3v2ShortFrameNameLookup[3]['beats_per_minute'] = 'TBPM';
1952  $ID3v2ShortFrameNameLookup[3]['composer'] = 'TCOM';
1953  $ID3v2ShortFrameNameLookup[3]['genre'] = 'TCON';
1954  $ID3v2ShortFrameNameLookup[3]['copyright'] = 'TCOP';
1955  $ID3v2ShortFrameNameLookup[3]['playlist_delay'] = 'TDLY';
1956  $ID3v2ShortFrameNameLookup[3]['encoded_by'] = 'TENC';
1957  $ID3v2ShortFrameNameLookup[3]['lyricist'] = 'TEXT';
1958  $ID3v2ShortFrameNameLookup[3]['file_type'] = 'TFLT';
1959  $ID3v2ShortFrameNameLookup[3]['content_group_description'] = 'TIT1';
1960  $ID3v2ShortFrameNameLookup[3]['title'] = 'TIT2';
1961  $ID3v2ShortFrameNameLookup[3]['subtitle'] = 'TIT3';
1962  $ID3v2ShortFrameNameLookup[3]['initial_key'] = 'TKEY';
1963  $ID3v2ShortFrameNameLookup[3]['language'] = 'TLAN';
1964  $ID3v2ShortFrameNameLookup[3]['length'] = 'TLEN';
1965  $ID3v2ShortFrameNameLookup[3]['media_type'] = 'TMED';
1966  $ID3v2ShortFrameNameLookup[3]['original_album_title'] = 'TOAL';
1967  $ID3v2ShortFrameNameLookup[3]['original_filename'] = 'TOFN';
1968  $ID3v2ShortFrameNameLookup[3]['original_lyricist'] = 'TOLY';
1969  $ID3v2ShortFrameNameLookup[3]['original_artist'] = 'TOPE';
1970  $ID3v2ShortFrameNameLookup[3]['file_owner'] = 'TOWN';
1971  $ID3v2ShortFrameNameLookup[3]['artist'] = 'TPE1';
1972  $ID3v2ShortFrameNameLookup[3]['band'] = 'TPE2';
1973  $ID3v2ShortFrameNameLookup[3]['conductor'] = 'TPE3';
1974  $ID3v2ShortFrameNameLookup[3]['remixer'] = 'TPE4';
1975  $ID3v2ShortFrameNameLookup[3]['part_of_set'] = 'TPOS';
1976  $ID3v2ShortFrameNameLookup[3]['publisher'] = 'TPUB';
1977  $ID3v2ShortFrameNameLookup[3]['tracknumber'] = 'TRCK';
1978  $ID3v2ShortFrameNameLookup[3]['internet_radio_station_name'] = 'TRSN';
1979  $ID3v2ShortFrameNameLookup[3]['internet_radio_station_owner'] = 'TRSO';
1980  $ID3v2ShortFrameNameLookup[3]['isrc'] = 'TSRC';
1981  $ID3v2ShortFrameNameLookup[3]['encoder_settings'] = 'TSSE';
1982  $ID3v2ShortFrameNameLookup[3]['user_text'] = 'TXXX';
1983  $ID3v2ShortFrameNameLookup[3]['unique_file_identifier'] = 'UFID';
1984  $ID3v2ShortFrameNameLookup[3]['terms_of_use'] = 'USER';
1985  $ID3v2ShortFrameNameLookup[3]['unsynchronised_lyrics'] = 'USLT';
1986  $ID3v2ShortFrameNameLookup[3]['commercial'] = 'WCOM';
1987  $ID3v2ShortFrameNameLookup[3]['copyright_information'] = 'WCOP';
1988  $ID3v2ShortFrameNameLookup[3]['url_file'] = 'WOAF';
1989  $ID3v2ShortFrameNameLookup[3]['url_artist'] = 'WOAR';
1990  $ID3v2ShortFrameNameLookup[3]['url_source'] = 'WOAS';
1991  $ID3v2ShortFrameNameLookup[3]['url_station'] = 'WORS';
1992  $ID3v2ShortFrameNameLookup[3]['payment'] = 'WPAY';
1993  $ID3v2ShortFrameNameLookup[3]['url_publisher'] = 'WPUB';
1994  $ID3v2ShortFrameNameLookup[3]['url_user'] = 'WXXX';
1995 
1996  // The above are common to ID3v2.3 and ID3v2.4
1997  // so copy them to ID3v2.4 before adding specifics for 2.3 and 2.4
1998  $ID3v2ShortFrameNameLookup[4] = $ID3v2ShortFrameNameLookup[3];
1999 
2000  // The following are unique to ID3v2.3
2001  $ID3v2ShortFrameNameLookup[3]['equalisation'] = 'EQUA';
2002  $ID3v2ShortFrameNameLookup[3]['involved_people_list'] = 'IPLS';
2003  $ID3v2ShortFrameNameLookup[3]['relative_volume_adjustment'] = 'RVAD';
2004  $ID3v2ShortFrameNameLookup[3]['date'] = 'TDAT';
2005  $ID3v2ShortFrameNameLookup[3]['time'] = 'TIME';
2006  $ID3v2ShortFrameNameLookup[3]['original_release_year'] = 'TORY';
2007  $ID3v2ShortFrameNameLookup[3]['recording_dates'] = 'TRDA';
2008  $ID3v2ShortFrameNameLookup[3]['size'] = 'TSIZ';
2009  $ID3v2ShortFrameNameLookup[3]['year'] = 'TYER';
2010 
2011 
2012  // The following are unique to ID3v2.4
2013  $ID3v2ShortFrameNameLookup[4]['audio_seek_point_index'] = 'ASPI';
2014  $ID3v2ShortFrameNameLookup[4]['equalisation'] = 'EQU2';
2015  $ID3v2ShortFrameNameLookup[4]['relative_volume_adjustment'] = 'RVA2';
2016  $ID3v2ShortFrameNameLookup[4]['seek'] = 'SEEK';
2017  $ID3v2ShortFrameNameLookup[4]['signature'] = 'SIGN';
2018  $ID3v2ShortFrameNameLookup[4]['encoding_time'] = 'TDEN';
2019  $ID3v2ShortFrameNameLookup[4]['original_release_time'] = 'TDOR';
2020  $ID3v2ShortFrameNameLookup[4]['recording_time'] = 'TDRC';
2021  $ID3v2ShortFrameNameLookup[4]['release_time'] = 'TDRL';
2022  $ID3v2ShortFrameNameLookup[4]['tagging_time'] = 'TDTG';
2023  $ID3v2ShortFrameNameLookup[4]['involved_people_list'] = 'TIPL';
2024  $ID3v2ShortFrameNameLookup[4]['musician_credits_list'] = 'TMCL';
2025  $ID3v2ShortFrameNameLookup[4]['mood'] = 'TMOO';
2026  $ID3v2ShortFrameNameLookup[4]['produced_notice'] = 'TPRO';
2027  $ID3v2ShortFrameNameLookup[4]['album_sort_order'] = 'TSOA';
2028  $ID3v2ShortFrameNameLookup[4]['performer_sort_order'] = 'TSOP';
2029  $ID3v2ShortFrameNameLookup[4]['title_sort_order'] = 'TSOT';
2030  $ID3v2ShortFrameNameLookup[4]['set_subtitle'] = 'TSST';
2031  }
2032  return @$ID3v2ShortFrameNameLookup[$majorversion][strtolower($long_description)];
2033 
2034  }
2035 
2036 }
2037 
2038 ?>