ILIAS  eassessment Revision 61809
 All Data Structures Namespaces Files Functions Variables Groups Pages
module.audio-video.asf.php
Go to the documentation of this file.
1 <?php
4 // available at http://getid3.sourceforge.net //
5 // or http://www.getid3.org //
7 // See readme.txt for more details //
9 // //
10 // module.audio-video.asf.php //
11 // module for analyzing ASF, WMA and WMV files //
12 // dependencies: module.audio-video.riff.php //
13 // ///
15 
16 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);
17 
18 $GUIDarray = getid3_asf::KnownGUIDs();
19 foreach ($GUIDarray as $GUIDname => $hexstringvalue) {
20  // initialize all GUID constants
21  define($GUIDname, getid3_asf::GUIDtoBytestring($hexstringvalue));
22 }
23 
24 
25 
26 class getid3_asf
27 {
28 
29  function getid3_asf(&$fd, &$ThisFileInfo) {
30 
31  // Shortcuts
32  $thisfile_audio = &$ThisFileInfo['audio'];
33  $thisfile_video = &$ThisFileInfo['video'];
34  $ThisFileInfo['asf'] = array();
35  $thisfile_asf = &$ThisFileInfo['asf'];
36  $thisfile_asf['comments'] = array();
37  $thisfile_asf_comments = &$thisfile_asf['comments'];
38  $thisfile_asf['header_object'] = array();
39  $thisfile_asf_headerobject = &$thisfile_asf['header_object'];
40 
41 
42  // ASF structure:
43  // * Header Object [required]
44  // * File Properties Object [required] (global file attributes)
45  // * Stream Properties Object [required] (defines media stream & characteristics)
46  // * Header Extension Object [required] (additional functionality)
47  // * Content Description Object (bibliographic information)
48  // * Script Command Object (commands for during playback)
49  // * Marker Object (named jumped points within the file)
50  // * Data Object [required]
51  // * Data Packets
52  // * Index Object
53 
54  // Header Object: (mandatory, one only)
55  // Field Name Field Type Size (bits)
56  // Object ID GUID 128 // GUID for header object - GETID3_ASF_Header_Object
57  // Object Size QWORD 64 // size of header object, including 30 bytes of Header Object header
58  // Number of Header Objects DWORD 32 // number of objects in header object
59  // Reserved1 BYTE 8 // hardcoded: 0x01
60  // Reserved2 BYTE 8 // hardcoded: 0x02
61 
62  $ThisFileInfo['fileformat'] = 'asf';
63 
64  fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
65  $HeaderObjectData = fread($fd, 30);
66 
67  $thisfile_asf_headerobject['objectid'] = substr($HeaderObjectData, 0, 16);
68  $thisfile_asf_headerobject['objectid_guid'] = $this->BytestringToGUID($thisfile_asf_headerobject['objectid']);
69  if ($thisfile_asf_headerobject['objectid'] != GETID3_ASF_Header_Object) {
70  $ThisFileInfo['warning'][] = 'ASF header GUID {'.$this->BytestringToGUID($thisfile_asf_headerobject['objectid']).'} does not match expected "GETID3_ASF_Header_Object" GUID {'.$this->BytestringToGUID(GETID3_ASF_Header_Object).'}';
71  unset($ThisFileInfo['fileformat']);
72  unset($ThisFileInfo['asf']);
73  return false;
74  break;
75  }
76  $thisfile_asf_headerobject['objectsize'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 16, 8));
77  $thisfile_asf_headerobject['headerobjects'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 24, 4));
78  $thisfile_asf_headerobject['reserved1'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 28, 1));
79  $thisfile_asf_headerobject['reserved2'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 29, 1));
80 
81  //$ASFHeaderData = $HeaderObjectData;
82  $ASFHeaderData = fread($fd, $thisfile_asf_headerobject['objectsize'] - 30);
83  //$offset = 30;
84  $offset = 0;
85 
86  for ($HeaderObjectsCounter = 0; $HeaderObjectsCounter < $thisfile_asf_headerobject['headerobjects']; $HeaderObjectsCounter++) {
87  $NextObjectGUID = substr($ASFHeaderData, $offset, 16);
88  $offset += 16;
89  $NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
90  $NextObjectSize = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
91  $offset += 8;
92  switch ($NextObjectGUID) {
93 
94  case GETID3_ASF_File_Properties_Object:
95  // File Properties Object: (mandatory, one only)
96  // Field Name Field Type Size (bits)
97  // Object ID GUID 128 // GUID for file properties object - GETID3_ASF_File_Properties_Object
98  // Object Size QWORD 64 // size of file properties object, including 104 bytes of File Properties Object header
99  // File ID GUID 128 // unique ID - identical to File ID in Data Object
100  // File Size QWORD 64 // entire file in bytes. Invalid if Broadcast Flag == 1
101  // Creation Date QWORD 64 // date & time of file creation. Maybe invalid if Broadcast Flag == 1
102  // Data Packets Count QWORD 64 // number of data packets in Data Object. Invalid if Broadcast Flag == 1
103  // Play Duration QWORD 64 // playtime, in 100-nanosecond units. Invalid if Broadcast Flag == 1
104  // Send Duration QWORD 64 // time needed to send file, in 100-nanosecond units. Players can ignore this value. Invalid if Broadcast Flag == 1
105  // Preroll QWORD 64 // time to buffer data before starting to play file, in 1-millisecond units. If <> 0, PlayDuration and PresentationTime have been offset by this amount
106  // Flags DWORD 32 //
107  // * Broadcast Flag bits 1 (0x01) // file is currently being written, some header values are invalid
108  // * Seekable Flag bits 1 (0x02) // is file seekable
109  // * Reserved bits 30 (0xFFFFFFFC) // reserved - set to zero
110  // Minimum Data Packet Size DWORD 32 // in bytes. should be same as Maximum Data Packet Size. Invalid if Broadcast Flag == 1
111  // Maximum Data Packet Size DWORD 32 // in bytes. should be same as Minimum Data Packet Size. Invalid if Broadcast Flag == 1
112  // Maximum Bitrate DWORD 32 // maximum instantaneous bitrate in bits per second for entire file, including all data streams and ASF overhead
113 
114  // shortcut
115  $thisfile_asf['file_properties_object'] = array();
116  $thisfile_asf_filepropertiesobject = &$thisfile_asf['file_properties_object'];
117 
118  $thisfile_asf_filepropertiesobject['objectid'] = $NextObjectGUID;
119  $thisfile_asf_filepropertiesobject['objectid_guid'] = $NextObjectGUIDtext;
120  $thisfile_asf_filepropertiesobject['objectsize'] = $NextObjectSize;
121  $thisfile_asf_filepropertiesobject['fileid'] = substr($ASFHeaderData, $offset, 16);
122  $offset += 16;
123  $thisfile_asf_filepropertiesobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_filepropertiesobject['fileid']);
124  $thisfile_asf_filepropertiesobject['filesize'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
125  $offset += 8;
126  $thisfile_asf_filepropertiesobject['creation_date'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
127  $thisfile_asf_filepropertiesobject['creation_date_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_filepropertiesobject['creation_date']);
128  $offset += 8;
129  $thisfile_asf_filepropertiesobject['data_packets'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
130  $offset += 8;
131  $thisfile_asf_filepropertiesobject['play_duration'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
132  $offset += 8;
133  $thisfile_asf_filepropertiesobject['send_duration'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
134  $offset += 8;
135  $thisfile_asf_filepropertiesobject['preroll'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
136  $offset += 8;
137  $ThisFileInfo['playtime_seconds'] = ($thisfile_asf_filepropertiesobject['play_duration'] / 10000000) - ($thisfile_asf_filepropertiesobject['preroll'] / 1000);
138  $thisfile_asf_filepropertiesobject['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
139  $offset += 4;
140  $thisfile_asf_filepropertiesobject['flags']['broadcast'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0001);
141  $thisfile_asf_filepropertiesobject['flags']['seekable'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0002);
142 
143  $thisfile_asf_filepropertiesobject['min_packet_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
144  $offset += 4;
145  $thisfile_asf_filepropertiesobject['max_packet_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
146  $offset += 4;
147  $thisfile_asf_filepropertiesobject['max_bitrate'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
148  $offset += 4;
149  //$ThisFileInfo['bitrate'] = $thisfile_asf_filepropertiesobject['max_bitrate'];
150  $ThisFileInfo['bitrate'] = ($thisfile_asf_filepropertiesobject['filesize'] * 8) / $ThisFileInfo['playtime_seconds'];
151  break;
152 
153  case GETID3_ASF_Stream_Properties_Object:
154  // Stream Properties Object: (mandatory, one per media stream)
155  // Field Name Field Type Size (bits)
156  // Object ID GUID 128 // GUID for stream properties object - GETID3_ASF_Stream_Properties_Object
157  // Object Size QWORD 64 // size of stream properties object, including 78 bytes of Stream Properties Object header
158  // Stream Type GUID 128 // GETID3_ASF_Audio_Media, GETID3_ASF_Video_Media or GETID3_ASF_Command_Media
159  // Error Correction Type GUID 128 // GETID3_ASF_Audio_Spread for audio-only streams, GETID3_ASF_No_Error_Correction for other stream types
160  // Time Offset QWORD 64 // 100-nanosecond units. typically zero. added to all timestamps of samples in the stream
161  // Type-Specific Data Length DWORD 32 // number of bytes for Type-Specific Data field
162  // Error Correction Data Length DWORD 32 // number of bytes for Error Correction Data field
163  // Flags WORD 16 //
164  // * Stream Number bits 7 (0x007F) // number of this stream. 1 <= valid <= 127
165  // * Reserved bits 8 (0x7F80) // reserved - set to zero
166  // * Encrypted Content Flag bits 1 (0x8000) // stream contents encrypted if set
167  // Reserved DWORD 32 // reserved - set to zero
168  // Type-Specific Data BYTESTREAM variable // type-specific format data, depending on value of Stream Type
169  // Error Correction Data BYTESTREAM variable // error-correction-specific format data, depending on value of Error Correct Type
170 
171  // There is one GETID3_ASF_Stream_Properties_Object for each stream (audio, video) but the
172  // stream number isn't known until halfway through decoding the structure, hence it
173  // it is decoded to a temporary variable and then stuck in the appropriate index later
174 
175  $StreamPropertiesObjectData['objectid'] = $NextObjectGUID;
176  $StreamPropertiesObjectData['objectid_guid'] = $NextObjectGUIDtext;
177  $StreamPropertiesObjectData['objectsize'] = $NextObjectSize;
178  $StreamPropertiesObjectData['stream_type'] = substr($ASFHeaderData, $offset, 16);
179  $offset += 16;
180  $StreamPropertiesObjectData['stream_type_guid'] = $this->BytestringToGUID($StreamPropertiesObjectData['stream_type']);
181  $StreamPropertiesObjectData['error_correct_type'] = substr($ASFHeaderData, $offset, 16);
182  $offset += 16;
183  $StreamPropertiesObjectData['error_correct_guid'] = $this->BytestringToGUID($StreamPropertiesObjectData['error_correct_type']);
184  $StreamPropertiesObjectData['time_offset'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
185  $offset += 8;
186  $StreamPropertiesObjectData['type_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
187  $offset += 4;
188  $StreamPropertiesObjectData['error_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
189  $offset += 4;
190  $StreamPropertiesObjectData['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
191  $offset += 2;
192  $StreamPropertiesObjectStreamNumber = $StreamPropertiesObjectData['flags_raw'] & 0x007F;
193  $StreamPropertiesObjectData['flags']['encrypted'] = (bool) ($StreamPropertiesObjectData['flags_raw'] & 0x8000);
194 
195  $offset += 4; // reserved - DWORD
196  $StreamPropertiesObjectData['type_specific_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['type_data_length']);
197  $offset += $StreamPropertiesObjectData['type_data_length'];
198  $StreamPropertiesObjectData['error_correct_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['error_data_length']);
199  $offset += $StreamPropertiesObjectData['error_data_length'];
200 
201  switch ($StreamPropertiesObjectData['stream_type']) {
202 
203  case GETID3_ASF_Audio_Media:
204  $thisfile_audio['dataformat'] = (!empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf');
205  $thisfile_audio['bitrate_mode'] = (!empty($thisfile_audio['bitrate_mode']) ? $thisfile_audio['bitrate_mode'] : 'cbr');
206 
207  $audiodata = getid3_riff::RIFFparseWAVEFORMATex(substr($StreamPropertiesObjectData['type_specific_data'], 0, 16));
208  unset($audiodata['raw']);
209  $thisfile_audio = getid3_lib::array_merge_noclobber($audiodata, $thisfile_audio);
210  break;
211 
212  case GETID3_ASF_Video_Media:
213  $thisfile_video['dataformat'] = (!empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf');
214  $thisfile_video['bitrate_mode'] = (!empty($thisfile_video['bitrate_mode']) ? $thisfile_video['bitrate_mode'] : 'cbr');
215  break;
216 
217  case GETID3_ASF_Command_Media:
218  default:
219  // do nothing
220  break;
221 
222  }
223 
224  $thisfile_asf['stream_properties_object'][$StreamPropertiesObjectStreamNumber] = $StreamPropertiesObjectData;
225  unset($StreamPropertiesObjectData); // clear for next stream, if any
226  break;
227 
228  case GETID3_ASF_Header_Extension_Object:
229  // Header Extension Object: (mandatory, one only)
230  // Field Name Field Type Size (bits)
231  // Object ID GUID 128 // GUID for Header Extension object - GETID3_ASF_Header_Extension_Object
232  // Object Size QWORD 64 // size of Header Extension object, including 46 bytes of Header Extension Object header
233  // Reserved Field 1 GUID 128 // hardcoded: GETID3_ASF_Reserved_1
234  // Reserved Field 2 WORD 16 // hardcoded: 0x00000006
235  // Header Extension Data Size DWORD 32 // in bytes. valid: 0, or > 24. equals object size minus 46
236  // Header Extension Data BYTESTREAM variable // array of zero or more extended header objects
237 
238  // shortcut
239  $thisfile_asf['header_extension_object'] = array();
240  $thisfile_asf_headerextensionobject = &$thisfile_asf['header_extension_object'];
241 
242  $thisfile_asf_headerextensionobject['objectid'] = $NextObjectGUID;
243  $thisfile_asf_headerextensionobject['objectid_guid'] = $NextObjectGUIDtext;
244  $thisfile_asf_headerextensionobject['objectsize'] = $NextObjectSize;
245  $thisfile_asf_headerextensionobject['reserved_1'] = substr($ASFHeaderData, $offset, 16);
246  $offset += 16;
247  $thisfile_asf_headerextensionobject['reserved_1_guid'] = $this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']);
248  if ($thisfile_asf_headerextensionobject['reserved_1'] != GETID3_ASF_Reserved_1) {
249  $ThisFileInfo['warning'][] = 'header_extension_object.reserved_1 GUID ('.$this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']).') does not match expected "GETID3_ASF_Reserved_1" GUID ('.$this->BytestringToGUID(GETID3_ASF_Reserved_1).')';
250  //return false;
251  break;
252  }
253  $thisfile_asf_headerextensionobject['reserved_2'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
254  $offset += 2;
255  if ($thisfile_asf_headerextensionobject['reserved_2'] != 6) {
256  $ThisFileInfo['warning'][] = 'header_extension_object.reserved_2 ('.getid3_lib::PrintHexBytes($thisfile_asf_headerextensionobject['reserved_2']).') does not match expected value of "6"';
257  //return false;
258  break;
259  }
260  $thisfile_asf_headerextensionobject['extension_data_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
261  $offset += 4;
262  $thisfile_asf_headerextensionobject['extension_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_headerextensionobject['extension_data_size']);
263  $offset += $thisfile_asf_headerextensionobject['extension_data_size'];
264  break;
265 
266  case GETID3_ASF_Codec_List_Object:
267  // Codec List Object: (optional, one only)
268  // Field Name Field Type Size (bits)
269  // Object ID GUID 128 // GUID for Codec List object - GETID3_ASF_Codec_List_Object
270  // Object Size QWORD 64 // size of Codec List object, including 44 bytes of Codec List Object header
271  // Reserved GUID 128 // hardcoded: 86D15241-311D-11D0-A3A4-00A0C90348F6
272  // Codec Entries Count DWORD 32 // number of entries in Codec Entries array
273  // Codec Entries array of: variable //
274  // * Type WORD 16 // 0x0001 = Video Codec, 0x0002 = Audio Codec, 0xFFFF = Unknown Codec
275  // * Codec Name Length WORD 16 // number of Unicode characters stored in the Codec Name field
276  // * Codec Name WCHAR variable // array of Unicode characters - name of codec used to create the content
277  // * Codec Description Length WORD 16 // number of Unicode characters stored in the Codec Description field
278  // * Codec Description WCHAR variable // array of Unicode characters - description of format used to create the content
279  // * Codec Information Length WORD 16 // number of Unicode characters stored in the Codec Information field
280  // * Codec Information BYTESTREAM variable // opaque array of information bytes about the codec used to create the content
281 
282  // shortcut
283  $thisfile_asf['codec_list_object'] = array();
284  $thisfile_asf_codeclistobject = &$thisfile_asf['codec_list_object'];
285 
286  $thisfile_asf_codeclistobject['objectid'] = $NextObjectGUID;
287  $thisfile_asf_codeclistobject['objectid_guid'] = $NextObjectGUIDtext;
288  $thisfile_asf_codeclistobject['objectsize'] = $NextObjectSize;
289  $thisfile_asf_codeclistobject['reserved'] = substr($ASFHeaderData, $offset, 16);
290  $offset += 16;
291  $thisfile_asf_codeclistobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']);
292  if ($thisfile_asf_codeclistobject['reserved'] != $this->GUIDtoBytestring('86D15241-311D-11D0-A3A4-00A0C90348F6')) {
293  $ThisFileInfo['warning'][] = 'codec_list_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {86D15241-311D-11D0-A3A4-00A0C90348F6}';
294  //return false;
295  break;
296  }
297  $thisfile_asf_codeclistobject['codec_entries_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
298  $offset += 4;
299  for ($CodecEntryCounter = 0; $CodecEntryCounter < $thisfile_asf_codeclistobject['codec_entries_count']; $CodecEntryCounter++) {
300  // shortcut
301  $thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter] = array();
302  $thisfile_asf_codeclistobject_codecentries_current = &$thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter];
303 
304  $thisfile_asf_codeclistobject_codecentries_current['type_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
305  $offset += 2;
306  $thisfile_asf_codeclistobject_codecentries_current['type'] = $this->ASFCodecListObjectTypeLookup($thisfile_asf_codeclistobject_codecentries_current['type_raw']);
307 
308  $CodecNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
309  $offset += 2;
310  $thisfile_asf_codeclistobject_codecentries_current['name'] = substr($ASFHeaderData, $offset, $CodecNameLength);
311  $offset += $CodecNameLength;
312 
313  $CodecDescriptionLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
314  $offset += 2;
315  $thisfile_asf_codeclistobject_codecentries_current['description'] = substr($ASFHeaderData, $offset, $CodecDescriptionLength);
316  $offset += $CodecDescriptionLength;
317 
318  $CodecInformationLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
319  $offset += 2;
320  $thisfile_asf_codeclistobject_codecentries_current['information'] = substr($ASFHeaderData, $offset, $CodecInformationLength);
321  $offset += $CodecInformationLength;
322 
323  if ($thisfile_asf_codeclistobject_codecentries_current['type_raw'] == 2) {
324  // audio codec
325  if (strpos($thisfile_asf_codeclistobject_codecentries_current['description'], ',') === false) {
326  $ThisFileInfo['error'][] = '[asf][codec_list_object][codec_entries]['.$CodecEntryCounter.'][description] expected to contain comma-seperated list of parameters: "'.$thisfile_asf_codeclistobject_codecentries_current['description'].'"';
327  return false;
328  }
329  list($AudioCodecBitrate, $AudioCodecFrequency, $AudioCodecChannels) = explode(',', $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']));
330  $thisfile_audio['codec'] = $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['name']);
331 
332  if (!isset($thisfile_audio['bitrate']) && strstr($AudioCodecBitrate, 'kbps')) {
333  $thisfile_audio['bitrate'] = (int) (trim(str_replace('kbps', '', $AudioCodecBitrate)) * 1000);
334  }
335  //if (!isset($thisfile_video['bitrate']) && isset($thisfile_audio['bitrate']) && isset($thisfile_asf['file_properties_object']['max_bitrate']) && ($thisfile_asf_codeclistobject['codec_entries_count'] > 1)) {
336  if (!@$thisfile_video['bitrate'] && @$thisfile_audio['bitrate'] && @$ThisFileInfo['bitrate']) {
337  //$thisfile_video['bitrate'] = $thisfile_asf['file_properties_object']['max_bitrate'] - $thisfile_audio['bitrate'];
338  $thisfile_video['bitrate'] = $ThisFileInfo['bitrate'] - $thisfile_audio['bitrate'];
339  }
340 
341  $AudioCodecFrequency = (int) trim(str_replace('kHz', '', $AudioCodecFrequency));
342  switch ($AudioCodecFrequency) {
343  case 8:
344  case 8000:
345  $thisfile_audio['sample_rate'] = 8000;
346  break;
347 
348  case 11:
349  case 11025:
350  $thisfile_audio['sample_rate'] = 11025;
351  break;
352 
353  case 12:
354  case 12000:
355  $thisfile_audio['sample_rate'] = 12000;
356  break;
357 
358  case 16:
359  case 16000:
360  $thisfile_audio['sample_rate'] = 16000;
361  break;
362 
363  case 22:
364  case 22050:
365  $thisfile_audio['sample_rate'] = 22050;
366  break;
367 
368  case 24:
369  case 24000:
370  $thisfile_audio['sample_rate'] = 24000;
371  break;
372 
373  case 32:
374  case 32000:
375  $thisfile_audio['sample_rate'] = 32000;
376  break;
377 
378  case 44:
379  case 441000:
380  $thisfile_audio['sample_rate'] = 44100;
381  break;
382 
383  case 48:
384  case 48000:
385  $thisfile_audio['sample_rate'] = 48000;
386  break;
387 
388  default:
389  $ThisFileInfo['warning'][] = 'unknown frequency: "'.$AudioCodecFrequency.'" ('.$this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']).')';
390  // return false;
391  break;
392  }
393 
394  if (!isset($thisfile_audio['channels'])) {
395  if (strstr($AudioCodecChannels, 'stereo')) {
396  $thisfile_audio['channels'] = 2;
397  } elseif (strstr($AudioCodecChannels, 'mono')) {
398  $thisfile_audio['channels'] = 1;
399  }
400  }
401  }
402  }
403  break;
404 
405  case GETID3_ASF_Script_Command_Object:
406  // Script Command Object: (optional, one only)
407  // Field Name Field Type Size (bits)
408  // Object ID GUID 128 // GUID for Script Command object - GETID3_ASF_Script_Command_Object
409  // Object Size QWORD 64 // size of Script Command object, including 44 bytes of Script Command Object header
410  // Reserved GUID 128 // hardcoded: 4B1ACBE3-100B-11D0-A39B-00A0C90348F6
411  // Commands Count WORD 16 // number of Commands structures in the Script Commands Objects
412  // Command Types Count WORD 16 // number of Command Types structures in the Script Commands Objects
413  // Command Types array of: variable //
414  // * Command Type Name Length WORD 16 // number of Unicode characters for Command Type Name
415  // * Command Type Name WCHAR variable // array of Unicode characters - name of a type of command
416  // Commands array of: variable //
417  // * Presentation Time DWORD 32 // presentation time of that command, in milliseconds
418  // * Type Index WORD 16 // type of this command, as a zero-based index into the array of Command Types of this object
419  // * Command Name Length WORD 16 // number of Unicode characters for Command Name
420  // * Command Name WCHAR variable // array of Unicode characters - name of this command
421 
422  // shortcut
423  $thisfile_asf['script_command_object'] = array();
424  $thisfile_asf_scriptcommandobject = &$thisfile_asf['script_command_object'];
425 
426  $thisfile_asf_scriptcommandobject['objectid'] = $NextObjectGUID;
427  $thisfile_asf_scriptcommandobject['objectid_guid'] = $NextObjectGUIDtext;
428  $thisfile_asf_scriptcommandobject['objectsize'] = $NextObjectSize;
429  $thisfile_asf_scriptcommandobject['reserved'] = substr($ASFHeaderData, $offset, 16);
430  $offset += 16;
431  $thisfile_asf_scriptcommandobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']);
432  if ($thisfile_asf_scriptcommandobject['reserved'] != $this->GUIDtoBytestring('4B1ACBE3-100B-11D0-A39B-00A0C90348F6')) {
433  $ThisFileInfo['warning'][] = 'script_command_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4B1ACBE3-100B-11D0-A39B-00A0C90348F6}';
434  //return false;
435  break;
436  }
437  $thisfile_asf_scriptcommandobject['commands_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
438  $offset += 2;
439  $thisfile_asf_scriptcommandobject['command_types_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
440  $offset += 2;
441  for ($CommandTypesCounter = 0; $CommandTypesCounter < $thisfile_asf_scriptcommandobject['command_types_count']; $CommandTypesCounter++) {
442  $CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
443  $offset += 2;
444  $thisfile_asf_scriptcommandobject['command_types'][$CommandTypesCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
445  $offset += $CommandTypeNameLength;
446  }
447  for ($CommandsCounter = 0; $CommandsCounter < $thisfile_asf_scriptcommandobject['commands_count']; $CommandsCounter++) {
448  $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['presentation_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
449  $offset += 4;
450  $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['type_index'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
451  $offset += 2;
452 
453  $CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
454  $offset += 2;
455  $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
456  $offset += $CommandTypeNameLength;
457  }
458  break;
459 
460  case GETID3_ASF_Marker_Object:
461  // Marker Object: (optional, one only)
462  // Field Name Field Type Size (bits)
463  // Object ID GUID 128 // GUID for Marker object - GETID3_ASF_Marker_Object
464  // Object Size QWORD 64 // size of Marker object, including 48 bytes of Marker Object header
465  // Reserved GUID 128 // hardcoded: 4CFEDB20-75F6-11CF-9C0F-00A0C90349CB
466  // Markers Count DWORD 32 // number of Marker structures in Marker Object
467  // Reserved WORD 16 // hardcoded: 0x0000
468  // Name Length WORD 16 // number of bytes in the Name field
469  // Name WCHAR variable // name of the Marker Object
470  // Markers array of: variable //
471  // * Offset QWORD 64 // byte offset into Data Object
472  // * Presentation Time QWORD 64 // in 100-nanosecond units
473  // * Entry Length WORD 16 // length in bytes of (Send Time + Flags + Marker Description Length + Marker Description + Padding)
474  // * Send Time DWORD 32 // in milliseconds
475  // * Flags DWORD 32 // hardcoded: 0x00000000
476  // * Marker Description Length DWORD 32 // number of bytes in Marker Description field
477  // * Marker Description WCHAR variable // array of Unicode characters - description of marker entry
478  // * Padding BYTESTREAM variable // optional padding bytes
479 
480  // shortcut
481  $thisfile_asf['marker_object'] = array();
482  $thisfile_asf_markerobject = &$thisfile_asf['marker_object'];
483 
484  $thisfile_asf_markerobject['objectid'] = $NextObjectGUID;
485  $thisfile_asf_markerobject['objectid_guid'] = $NextObjectGUIDtext;
486  $thisfile_asf_markerobject['objectsize'] = $NextObjectSize;
487  $thisfile_asf_markerobject['reserved'] = substr($ASFHeaderData, $offset, 16);
488  $offset += 16;
489  $thisfile_asf_markerobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_markerobject['reserved']);
490  if ($thisfile_asf_markerobject['reserved'] != $this->GUIDtoBytestring('4CFEDB20-75F6-11CF-9C0F-00A0C90349CB')) {
491  $ThisFileInfo['warning'][] = 'marker_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_markerobject['reserved_1']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4CFEDB20-75F6-11CF-9C0F-00A0C90349CB}';
492  break;
493  }
494  $thisfile_asf_markerobject['markers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
495  $offset += 4;
496  $thisfile_asf_markerobject['reserved_2'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
497  $offset += 2;
498  if ($thisfile_asf_markerobject['reserved_2'] != 0) {
499  $ThisFileInfo['warning'][] = 'marker_object.reserved_2 ('.getid3_lib::PrintHexBytes($thisfile_asf_markerobject['reserved_2']).') does not match expected value of "0"';
500  break;
501  }
502  $thisfile_asf_markerobject['name_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
503  $offset += 2;
504  $thisfile_asf_markerobject['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['name_length']);
505  $offset += $thisfile_asf_markerobject['name_length'];
506  for ($MarkersCounter = 0; $MarkersCounter < $thisfile_asf_markerobject['markers_count']; $MarkersCounter++) {
507  $thisfile_asf_markerobject['markers'][$MarkersCounter]['offset'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
508  $offset += 8;
509  $thisfile_asf_markerobject['markers'][$MarkersCounter]['presentation_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
510  $offset += 8;
511  $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
512  $offset += 2;
513  $thisfile_asf_markerobject['markers'][$MarkersCounter]['send_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
514  $offset += 4;
515  $thisfile_asf_markerobject['markers'][$MarkersCounter]['flags'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
516  $offset += 4;
517  $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
518  $offset += 4;
519  $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']);
520  $offset += $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
521  $PaddingLength = $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] - 4 - 4 - 4 - $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
522  if ($PaddingLength > 0) {
523  $thisfile_asf_markerobject['markers'][$MarkersCounter]['padding'] = substr($ASFHeaderData, $offset, $PaddingLength);
524  $offset += $PaddingLength;
525  }
526  }
527  break;
528 
529  case GETID3_ASF_Bitrate_Mutual_Exclusion_Object:
530  // Bitrate Mutual Exclusion Object: (optional)
531  // Field Name Field Type Size (bits)
532  // Object ID GUID 128 // GUID for Bitrate Mutual Exclusion object - GETID3_ASF_Bitrate_Mutual_Exclusion_Object
533  // Object Size QWORD 64 // size of Bitrate Mutual Exclusion object, including 42 bytes of Bitrate Mutual Exclusion Object header
534  // Exlusion Type GUID 128 // nature of mutual exclusion relationship. one of: (GETID3_ASF_Mutex_Bitrate, GETID3_ASF_Mutex_Unknown)
535  // Stream Numbers Count WORD 16 // number of video streams
536  // Stream Numbers WORD variable // array of mutually exclusive video stream numbers. 1 <= valid <= 127
537 
538  // shortcut
539  $thisfile_asf['bitrate_mutual_exclusion_object'] = array();
540  $thisfile_asf_bitratemutualexclusionobject = &$thisfile_asf['bitrate_mutual_exclusion_object'];
541 
542  $thisfile_asf_bitratemutualexclusionobject['objectid'] = $NextObjectGUID;
543  $thisfile_asf_bitratemutualexclusionobject['objectid_guid'] = $NextObjectGUIDtext;
544  $thisfile_asf_bitratemutualexclusionobject['objectsize'] = $NextObjectSize;
545  $thisfile_asf_bitratemutualexclusionobject['reserved'] = substr($ASFHeaderData, $offset, 16);
546  $thisfile_asf_bitratemutualexclusionobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']);
547  $offset += 16;
548  if (($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Bitrate) && ($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Unknown)) {
549  $ThisFileInfo['warning'][] = 'bitrate_mutual_exclusion_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']).'} does not match expected "GETID3_ASF_Mutex_Bitrate" GUID {'.$this->BytestringToGUID(GETID3_ASF_Mutex_Bitrate).'} or "GETID3_ASF_Mutex_Unknown" GUID {'.$this->BytestringToGUID(GETID3_ASF_Mutex_Unknown).'}';
550  //return false;
551  break;
552  }
553  $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
554  $offset += 2;
555  for ($StreamNumberCounter = 0; $StreamNumberCounter < $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count']; $StreamNumberCounter++) {
556  $thisfile_asf_bitratemutualexclusionobject['stream_numbers'][$StreamNumberCounter] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
557  $offset += 2;
558  }
559  break;
560 
561  case GETID3_ASF_Error_Correction_Object:
562  // Error Correction Object: (optional, one only)
563  // Field Name Field Type Size (bits)
564  // Object ID GUID 128 // GUID for Error Correction object - GETID3_ASF_Error_Correction_Object
565  // Object Size QWORD 64 // size of Error Correction object, including 44 bytes of Error Correction Object header
566  // Error Correction Type GUID 128 // type of error correction. one of: (GETID3_ASF_No_Error_Correction, GETID3_ASF_Audio_Spread)
567  // Error Correction Data Length DWORD 32 // number of bytes in Error Correction Data field
568  // Error Correction Data BYTESTREAM variable // structure depends on value of Error Correction Type field
569 
570  // shortcut
571  $thisfile_asf['error_correction_object'] = array();
572  $thisfile_asf_errorcorrectionobject = &$thisfile_asf['error_correction_object'];
573 
574  $thisfile_asf_errorcorrectionobject['objectid'] = $NextObjectGUID;
575  $thisfile_asf_errorcorrectionobject['objectid_guid'] = $NextObjectGUIDtext;
576  $thisfile_asf_errorcorrectionobject['objectsize'] = $NextObjectSize;
577  $thisfile_asf_errorcorrectionobject['error_correction_type'] = substr($ASFHeaderData, $offset, 16);
578  $offset += 16;
579  $thisfile_asf_errorcorrectionobject['error_correction_guid'] = $this->BytestringToGUID($thisfile_asf_errorcorrectionobject['error_correction_type']);
580  $thisfile_asf_errorcorrectionobject['error_correction_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
581  $offset += 4;
582  switch ($thisfile_asf_errorcorrectionobject['error_correction_type']) {
583  case GETID3_ASF_No_Error_Correction:
584  // should be no data, but just in case there is, skip to the end of the field
585  $offset += $thisfile_asf_errorcorrectionobject['error_correction_data_length'];
586  break;
587 
588  case GETID3_ASF_Audio_Spread:
589  // Field Name Field Type Size (bits)
590  // Span BYTE 8 // number of packets over which audio will be spread.
591  // Virtual Packet Length WORD 16 // size of largest audio payload found in audio stream
592  // Virtual Chunk Length WORD 16 // size of largest audio payload found in audio stream
593  // Silence Data Length WORD 16 // number of bytes in Silence Data field
594  // Silence Data BYTESTREAM variable // hardcoded: 0x00 * (Silence Data Length) bytes
595 
596  $thisfile_asf_errorcorrectionobject['span'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 1));
597  $offset += 1;
598  $thisfile_asf_errorcorrectionobject['virtual_packet_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
599  $offset += 2;
600  $thisfile_asf_errorcorrectionobject['virtual_chunk_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
601  $offset += 2;
602  $thisfile_asf_errorcorrectionobject['silence_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
603  $offset += 2;
604  $thisfile_asf_errorcorrectionobject['silence_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_errorcorrectionobject['silence_data_length']);
605  $offset += $thisfile_asf_errorcorrectionobject['silence_data_length'];
606  break;
607 
608  default:
609  $ThisFileInfo['warning'][] = 'error_correction_object.error_correction_type GUID {'.$this->BytestringToGUID($thisfile_asf_errorcorrectionobject['reserved']).'} does not match expected "GETID3_ASF_No_Error_Correction" GUID {'.$this->BytestringToGUID(GETID3_ASF_No_Error_Correction).'} or "GETID3_ASF_Audio_Spread" GUID {'.$this->BytestringToGUID(GETID3_ASF_Audio_Spread).'}';
610  //return false;
611  break;
612  }
613 
614  break;
615 
616  case GETID3_ASF_Content_Description_Object:
617  // Content Description Object: (optional, one only)
618  // Field Name Field Type Size (bits)
619  // Object ID GUID 128 // GUID for Content Description object - GETID3_ASF_Content_Description_Object
620  // Object Size QWORD 64 // size of Content Description object, including 34 bytes of Content Description Object header
621  // Title Length WORD 16 // number of bytes in Title field
622  // Author Length WORD 16 // number of bytes in Author field
623  // Copyright Length WORD 16 // number of bytes in Copyright field
624  // Description Length WORD 16 // number of bytes in Description field
625  // Rating Length WORD 16 // number of bytes in Rating field
626  // Title WCHAR 16 // array of Unicode characters - Title
627  // Author WCHAR 16 // array of Unicode characters - Author
628  // Copyright WCHAR 16 // array of Unicode characters - Copyright
629  // Description WCHAR 16 // array of Unicode characters - Description
630  // Rating WCHAR 16 // array of Unicode characters - Rating
631 
632  // shortcut
633  $thisfile_asf['content_description_object'] = array();
634  $thisfile_asf_contentdescriptionobject = &$thisfile_asf['content_description_object'];
635 
636  $thisfile_asf_contentdescriptionobject['objectid'] = $NextObjectGUID;
637  $thisfile_asf_contentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext;
638  $thisfile_asf_contentdescriptionobject['objectsize'] = $NextObjectSize;
639  $thisfile_asf_contentdescriptionobject['title_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
640  $offset += 2;
641  $thisfile_asf_contentdescriptionobject['author_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
642  $offset += 2;
643  $thisfile_asf_contentdescriptionobject['copyright_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
644  $offset += 2;
645  $thisfile_asf_contentdescriptionobject['description_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
646  $offset += 2;
647  $thisfile_asf_contentdescriptionobject['rating_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
648  $offset += 2;
649  $thisfile_asf_contentdescriptionobject['title'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['title_length']);
650  $offset += $thisfile_asf_contentdescriptionobject['title_length'];
651  $thisfile_asf_contentdescriptionobject['author'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['author_length']);
652  $offset += $thisfile_asf_contentdescriptionobject['author_length'];
653  $thisfile_asf_contentdescriptionobject['copyright'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['copyright_length']);
654  $offset += $thisfile_asf_contentdescriptionobject['copyright_length'];
655  $thisfile_asf_contentdescriptionobject['description'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['description_length']);
656  $offset += $thisfile_asf_contentdescriptionobject['description_length'];
657  $thisfile_asf_contentdescriptionobject['rating'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['rating_length']);
658  $offset += $thisfile_asf_contentdescriptionobject['rating_length'];
659 
660  $ASFcommentKeysToCopy = array('title'=>'title', 'author'=>'artist', 'copyright'=>'copyright', 'description'=>'comment', 'rating'=>'rating');
661  foreach ($ASFcommentKeysToCopy as $keytocopyfrom => $keytocopyto) {
662  if (!empty($thisfile_asf_contentdescriptionobject[$keytocopyfrom])) {
663  $thisfile_asf_comments[$keytocopyto][] = $this->TrimTerm($thisfile_asf_contentdescriptionobject[$keytocopyfrom]);
664  }
665  }
666  break;
667 
668  case GETID3_ASF_Extended_Content_Description_Object:
669  // Extended Content Description Object: (optional, one only)
670  // Field Name Field Type Size (bits)
671  // Object ID GUID 128 // GUID for Extended Content Description object - GETID3_ASF_Extended_Content_Description_Object
672  // Object Size QWORD 64 // size of ExtendedContent Description object, including 26 bytes of Extended Content Description Object header
673  // Content Descriptors Count WORD 16 // number of entries in Content Descriptors list
674  // Content Descriptors array of: variable //
675  // * Descriptor Name Length WORD 16 // size in bytes of Descriptor Name field
676  // * Descriptor Name WCHAR variable // array of Unicode characters - Descriptor Name
677  // * Descriptor Value Data Type WORD 16 // Lookup array:
678  // 0x0000 = Unicode String (variable length)
679  // 0x0001 = BYTE array (variable length)
680  // 0x0002 = BOOL (DWORD, 32 bits)
681  // 0x0003 = DWORD (DWORD, 32 bits)
682  // 0x0004 = QWORD (QWORD, 64 bits)
683  // 0x0005 = WORD (WORD, 16 bits)
684  // * Descriptor Value Length WORD 16 // number of bytes stored in Descriptor Value field
685  // * Descriptor Value variable variable // value for Content Descriptor
686 
687  // shortcut
688  $thisfile_asf['extended_content_description_object'] = array();
689  $thisfile_asf_extendedcontentdescriptionobject = &$thisfile_asf['extended_content_description_object'];
690 
691  $thisfile_asf_extendedcontentdescriptionobject['objectid'] = $NextObjectGUID;
692  $thisfile_asf_extendedcontentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext;
693  $thisfile_asf_extendedcontentdescriptionobject['objectsize'] = $NextObjectSize;
694  $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
695  $offset += 2;
696  for ($ExtendedContentDescriptorsCounter = 0; $ExtendedContentDescriptorsCounter < $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count']; $ExtendedContentDescriptorsCounter++) {
697  // shortcut
698  $thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter] = array();
699  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current = &$thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter];
700 
701  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['base_offset'] = $offset + 30;
702  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
703  $offset += 2;
704  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']);
705  $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'];
706  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
707  $offset += 2;
708  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
709  $offset += 2;
710  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length']);
711  $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'];
712  switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
713  case 0x0000: // Unicode string
714  break;
715 
716  case 0x0001: // BYTE array
717  // do nothing
718  break;
719 
720  case 0x0002: // BOOL
721  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = (bool) getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
722  break;
723 
724  case 0x0003: // DWORD
725  case 0x0004: // QWORD
726  case 0x0005: // WORD
727  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
728  break;
729 
730  default:
731  $ThisFileInfo['warning'][] = 'extended_content_description.content_descriptors.'.$ExtendedContentDescriptorsCounter.'.value_type is invalid ('.$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'].')';
732  //return false;
733  break;
734  }
735  switch ($this->TrimConvert(strtolower($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']))) {
736 
737  case 'wm/albumartist':
738  case 'artist':
739  $thisfile_asf_comments['artist'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
740  break;
741 
742  case 'wm/albumtitle':
743  case 'album':
744  $thisfile_asf_comments['album'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
745  break;
746 
747  case 'wm/genre':
748  case 'genre':
749  $thisfile_asf_comments['genre'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
750  break;
751 
752  case 'wm/tracknumber':
753  case 'tracknumber':
754  $thisfile_asf_comments['track'] = array(intval($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])));
755  break;
756 
757  case 'wm/track':
758  if (empty($thisfile_asf_comments['track'])) {
759  $thisfile_asf_comments['track'] = array(1 + $this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
760  }
761  break;
762 
763  case 'wm/year':
764  case 'year':
765  case 'date':
766  $thisfile_asf_comments['year'] = array( $this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
767  break;
768 
769  case 'wm/lyrics':
770  case 'lyrics':
771  $thisfile_asf_comments['lyrics'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
772  break;
773 
774  case 'isvbr':
775  if ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']) {
776  $thisfile_audio['bitrate_mode'] = 'vbr';
777  $thisfile_video['bitrate_mode'] = 'vbr';
778  }
779  break;
780 
781  case 'id3':
782  // id3v2 module might not be loaded
783  if (class_exists('getid3_id3v2')) {
784  $tempfile = tempnam('*', 'getID3');
785  $tempfilehandle = fopen($tempfile, "wb");
786  $tempThisfileInfo = array('encoding'=>$ThisFileInfo['encoding']);
787  fwrite($tempfilehandle, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
788  fclose($tempfilehandle);
789 
790  $tempfilehandle = fopen($tempfile, "rb");
791  $id3 = new getid3_id3v2($tempfilehandle, $tempThisfileInfo);
792  fclose($tempfilehandle);
793  unlink($tempfile);
794 
795  $ThisFileInfo['id3v2'] = $tempThisfileInfo['id3v2'];
796  }
797  break;
798 
799  case 'wm/encodingtime':
800  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
801  $thisfile_asf_comments['encoding_time_unix'] = array($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix']);
802  break;
803 
804  case 'wm/picture':
805  //typedef struct _WMPicture{
806  // LPWSTR pwszMIMEType;
807  // BYTE bPictureType;
808  // LPWSTR pwszDescription;
809  // DWORD dwDataLen;
810  // BYTE* pbData;
811  //} WM_PICTURE;
812 
813  $wm_picture_offset = 0;
814  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id'] = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 1));
815  $wm_picture_offset += 1;
816  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type'] = $this->WMpictureTypeLookup($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id']);
817  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_size'] = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 4));
818  $wm_picture_offset += 4;
819 
820  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = '';
821  do {
822  $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
823  $wm_picture_offset += 2;
824  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] .= $next_byte_pair;
825  } while ($next_byte_pair !== "\x00\x00");
826 
827  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] = '';
828  do {
829  $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
830  $wm_picture_offset += 2;
831  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] .= $next_byte_pair;
832  } while ($next_byte_pair !== "\x00\x00");
833 
834  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['dataoffset'] = $wm_picture_offset;
835  $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'] = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset);
836  unset($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
837 
838  break;
839 
840  default:
841  switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
842  case 0: // Unicode string
843  if (substr($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']), 0, 3) == 'WM/') {
844  $thisfile_asf_comments[str_replace('wm/', '', strtolower($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'])))] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
845  }
846  break;
847 
848  case 1:
849  break;
850  }
851  break;
852  }
853 
854  }
855  break;
856 
857  case GETID3_ASF_Stream_Bitrate_Properties_Object:
858  // Stream Bitrate Properties Object: (optional, one only)
859  // Field Name Field Type Size (bits)
860  // Object ID GUID 128 // GUID for Stream Bitrate Properties object - GETID3_ASF_Stream_Bitrate_Properties_Object
861  // Object Size QWORD 64 // size of Extended Content Description object, including 26 bytes of Stream Bitrate Properties Object header
862  // Bitrate Records Count WORD 16 // number of records in Bitrate Records
863  // Bitrate Records array of: variable //
864  // * Flags WORD 16 //
865  // * * Stream Number bits 7 (0x007F) // number of this stream
866  // * * Reserved bits 9 (0xFF80) // hardcoded: 0
867  // * Average Bitrate DWORD 32 // in bits per second
868 
869  // shortcut
870  $thisfile_asf['stream_bitrate_properties_object'] = array();
871  $thisfile_asf_streambitratepropertiesobject = &$thisfile_asf['stream_bitrate_properties_object'];
872 
873  $thisfile_asf_streambitratepropertiesobject['objectid'] = $NextObjectGUID;
874  $thisfile_asf_streambitratepropertiesobject['objectid_guid'] = $NextObjectGUIDtext;
875  $thisfile_asf_streambitratepropertiesobject['objectsize'] = $NextObjectSize;
876  $thisfile_asf_streambitratepropertiesobject['bitrate_records_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
877  $offset += 2;
878  for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitratepropertiesobject['bitrate_records_count']; $BitrateRecordsCounter++) {
879  $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
880  $offset += 2;
881  $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags']['stream_number'] = $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] & 0x007F;
882  $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
883  $offset += 4;
884  }
885  break;
886 
887  case GETID3_ASF_Padding_Object:
888  // Padding Object: (optional)
889  // Field Name Field Type Size (bits)
890  // Object ID GUID 128 // GUID for Padding object - GETID3_ASF_Padding_Object
891  // Object Size QWORD 64 // size of Padding object, including 24 bytes of ASF Padding Object header
892  // Padding Data BYTESTREAM variable // ignore
893 
894  // shortcut
895  $thisfile_asf['padding_object'] = array();
896  $thisfile_asf_paddingobject = &$thisfile_asf['padding_object'];
897 
898  $thisfile_asf_paddingobject['objectid'] = $NextObjectGUID;
899  $thisfile_asf_paddingobject['objectid_guid'] = $NextObjectGUIDtext;
900  $thisfile_asf_paddingobject['objectsize'] = $NextObjectSize;
901  $thisfile_asf_paddingobject['padding_length'] = $thisfile_asf_paddingobject['objectsize'] - 16 - 8;
902  $thisfile_asf_paddingobject['padding'] = substr($ASFHeaderData, $offset, $thisfile_asf_paddingobject['padding_length']);
903  break;
904 
905  case GETID3_ASF_Extended_Content_Encryption_Object:
906  case GETID3_ASF_Content_Encryption_Object:
907  // WMA DRM - just ignore
908  $offset += ($NextObjectSize - 16 - 8);
909  break;
910 
911  default:
912  // Implementations shall ignore any standard or non-standard object that they do not know how to handle.
913  if ($this->GUIDname($NextObjectGUIDtext)) {
914  $ThisFileInfo['warning'][] = 'unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8);
915  } else {
916  $ThisFileInfo['warning'][] = 'unknown GUID {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8);
917  }
918  $offset += ($NextObjectSize - 16 - 8);
919  break;
920  }
921  }
922  if (isset($thisfile_asf_streambitrateproperties['bitrate_records_count'])) {
923  $ASFbitrateAudio = 0;
924  $ASFbitrateVideo = 0;
925  for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitrateproperties['bitrate_records_count']; $BitrateRecordsCounter++) {
926  if (isset($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter])) {
927  switch ($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter]['type_raw']) {
928  case 1:
929  $ASFbitrateVideo += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
930  break;
931 
932  case 2:
933  $ASFbitrateAudio += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
934  break;
935 
936  default:
937  // do nothing
938  break;
939  }
940  }
941  }
942  if ($ASFbitrateAudio > 0) {
943  $thisfile_audio['bitrate'] = $ASFbitrateAudio;
944  }
945  if ($ASFbitrateVideo > 0) {
946  $thisfile_video['bitrate'] = $ASFbitrateVideo;
947  }
948  }
949  if (isset($thisfile_asf['stream_properties_object']) && is_array($thisfile_asf['stream_properties_object'])) {
950 
951  $thisfile_audio['bitrate'] = 0;
952  $thisfile_video['bitrate'] = 0;
953 
954  foreach ($thisfile_asf['stream_properties_object'] as $streamnumber => $streamdata) {
955 
956  switch ($streamdata['stream_type']) {
957  case GETID3_ASF_Audio_Media:
958  // Field Name Field Type Size (bits)
959  // Codec ID / Format Tag WORD 16 // unique ID of audio codec - defined as wFormatTag field of WAVEFORMATEX structure
960  // Number of Channels WORD 16 // number of channels of audio - defined as nChannels field of WAVEFORMATEX structure
961  // Samples Per Second DWORD 32 // in Hertz - defined as nSamplesPerSec field of WAVEFORMATEX structure
962  // Average number of Bytes/sec DWORD 32 // bytes/sec of audio stream - defined as nAvgBytesPerSec field of WAVEFORMATEX structure
963  // Block Alignment WORD 16 // block size in bytes of audio codec - defined as nBlockAlign field of WAVEFORMATEX structure
964  // Bits per sample WORD 16 // bits per sample of mono data. set to zero for variable bitrate codecs. defined as wBitsPerSample field of WAVEFORMATEX structure
965  // Codec Specific Data Size WORD 16 // size in bytes of Codec Specific Data buffer - defined as cbSize field of WAVEFORMATEX structure
966  // Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes
967 
968  // shortcut
969  $thisfile_asf['audio_media'][$streamnumber] = array();
970  $thisfile_asf_audiomedia_currentstream = &$thisfile_asf['audio_media'][$streamnumber];
971 
972  $audiomediaoffset = 0;
973 
974  $thisfile_asf_audiomedia_currentstream = getid3_riff::RIFFparseWAVEFORMATex(substr($streamdata['type_specific_data'], $audiomediaoffset, 16));
975  $audiomediaoffset += 16;
976 
977  $thisfile_audio['lossless'] = false;
978  switch ($thisfile_asf_audiomedia_currentstream['raw']['wFormatTag']) {
979  case 0x0001: // PCM
980  case 0x0163: // WMA9 Lossless
981  $thisfile_audio['lossless'] = true;
982  break;
983  }
984 
985  if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) {
986  foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) {
987  if (@$dataarray['flags']['stream_number'] == $streamnumber) {
988  $thisfile_asf_audiomedia_currentstream['bitrate'] = $dataarray['bitrate'];
989  $thisfile_audio['bitrate'] += $dataarray['bitrate'];
990  break;
991  }
992  }
993  } else {
994  if (@$thisfile_asf_audiomedia_currentstream['bytes_sec']) {
995  $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bytes_sec'] * 8;
996  } elseif (@$thisfile_asf_audiomedia_currentstream['bitrate']) {
997  $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bitrate'];
998  }
999  }
1000  $thisfile_audio['streams'][$streamnumber] = $thisfile_asf_audiomedia_currentstream;
1001  $thisfile_audio['streams'][$streamnumber]['wformattag'] = $thisfile_asf_audiomedia_currentstream['raw']['wFormatTag'];
1002  $thisfile_audio['streams'][$streamnumber]['lossless'] = $thisfile_audio['lossless'];
1003  $thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate'];
1004  unset($thisfile_audio['streams'][$streamnumber]['raw']);
1005 
1006  $thisfile_asf_audiomedia_currentstream['codec_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $audiomediaoffset, 2));
1007  $audiomediaoffset += 2;
1008  $thisfile_asf_audiomedia_currentstream['codec_data'] = substr($streamdata['type_specific_data'], $audiomediaoffset, $thisfile_asf_audiomedia_currentstream['codec_data_size']);
1009  $audiomediaoffset += $thisfile_asf_audiomedia_currentstream['codec_data_size'];
1010 
1011  break;
1012 
1013  case GETID3_ASF_Video_Media:
1014  // Field Name Field Type Size (bits)
1015  // Encoded Image Width DWORD 32 // width of image in pixels
1016  // Encoded Image Height DWORD 32 // height of image in pixels
1017  // Reserved Flags BYTE 8 // hardcoded: 0x02
1018  // Format Data Size WORD 16 // size of Format Data field in bytes
1019  // Format Data array of: variable //
1020  // * Format Data Size DWORD 32 // number of bytes in Format Data field, in bytes - defined as biSize field of BITMAPINFOHEADER structure
1021  // * Image Width LONG 32 // width of encoded image in pixels - defined as biWidth field of BITMAPINFOHEADER structure
1022  // * Image Height LONG 32 // height of encoded image in pixels - defined as biHeight field of BITMAPINFOHEADER structure
1023  // * Reserved WORD 16 // hardcoded: 0x0001 - defined as biPlanes field of BITMAPINFOHEADER structure
1024  // * Bits Per Pixel Count WORD 16 // bits per pixel - defined as biBitCount field of BITMAPINFOHEADER structure
1025  // * Compression ID FOURCC 32 // fourcc of video codec - defined as biCompression field of BITMAPINFOHEADER structure
1026  // * Image Size DWORD 32 // image size in bytes - defined as biSizeImage field of BITMAPINFOHEADER structure
1027  // * Horizontal Pixels / Meter DWORD 32 // horizontal resolution of target device in pixels per meter - defined as biXPelsPerMeter field of BITMAPINFOHEADER structure
1028  // * Vertical Pixels / Meter DWORD 32 // vertical resolution of target device in pixels per meter - defined as biYPelsPerMeter field of BITMAPINFOHEADER structure
1029  // * Colors Used Count DWORD 32 // number of color indexes in the color table that are actually used - defined as biClrUsed field of BITMAPINFOHEADER structure
1030  // * Important Colors Count DWORD 32 // number of color index required for displaying bitmap. if zero, all colors are required. defined as biClrImportant field of BITMAPINFOHEADER structure
1031  // * Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes
1032 
1033  // shortcut
1034  $thisfile_asf['video_media'][$streamnumber] = array();
1035  $thisfile_asf_videomedia_currentstream = &$thisfile_asf['video_media'][$streamnumber];
1036 
1037  $videomediaoffset = 0;
1038  $thisfile_asf_videomedia_currentstream['image_width'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1039  $videomediaoffset += 4;
1040  $thisfile_asf_videomedia_currentstream['image_height'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1041  $videomediaoffset += 4;
1042  $thisfile_asf_videomedia_currentstream['flags'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 1));
1043  $videomediaoffset += 1;
1044  $thisfile_asf_videomedia_currentstream['format_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1045  $videomediaoffset += 2;
1046  $thisfile_asf_videomedia_currentstream['format_data']['format_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1047  $videomediaoffset += 4;
1048  $thisfile_asf_videomedia_currentstream['format_data']['image_width'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1049  $videomediaoffset += 4;
1050  $thisfile_asf_videomedia_currentstream['format_data']['image_height'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1051  $videomediaoffset += 4;
1052  $thisfile_asf_videomedia_currentstream['format_data']['reserved'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1053  $videomediaoffset += 2;
1054  $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1055  $videomediaoffset += 2;
1056  $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'] = substr($streamdata['type_specific_data'], $videomediaoffset, 4);
1057  $videomediaoffset += 4;
1058  $thisfile_asf_videomedia_currentstream['format_data']['image_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1059  $videomediaoffset += 4;
1060  $thisfile_asf_videomedia_currentstream['format_data']['horizontal_pels'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1061  $videomediaoffset += 4;
1062  $thisfile_asf_videomedia_currentstream['format_data']['vertical_pels'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1063  $videomediaoffset += 4;
1064  $thisfile_asf_videomedia_currentstream['format_data']['colors_used'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1065  $videomediaoffset += 4;
1066  $thisfile_asf_videomedia_currentstream['format_data']['colors_important'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1067  $videomediaoffset += 4;
1068  $thisfile_asf_videomedia_currentstream['format_data']['codec_data'] = substr($streamdata['type_specific_data'], $videomediaoffset);
1069 
1070  if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) {
1071  foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) {
1072  if (@$dataarray['flags']['stream_number'] == $streamnumber) {
1073  $thisfile_asf_videomedia_currentstream['bitrate'] = $dataarray['bitrate'];
1074  $thisfile_video['streams'][$streamnumber]['bitrate'] = $dataarray['bitrate'];
1075  $thisfile_video['bitrate'] += $dataarray['bitrate'];
1076  break;
1077  }
1078  }
1079  }
1080 
1081  $thisfile_asf_videomedia_currentstream['format_data']['codec'] = getid3_riff::RIFFfourccLookup($thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']);
1082 
1083  $thisfile_video['streams'][$streamnumber]['fourcc'] = $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'];
1084  $thisfile_video['streams'][$streamnumber]['codec'] = $thisfile_asf_videomedia_currentstream['format_data']['codec'];
1085  $thisfile_video['streams'][$streamnumber]['resolution_x'] = $thisfile_asf_videomedia_currentstream['image_width'];
1086  $thisfile_video['streams'][$streamnumber]['resolution_y'] = $thisfile_asf_videomedia_currentstream['image_height'];
1087  $thisfile_video['streams'][$streamnumber]['bits_per_sample'] = $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'];
1088  break;
1089 
1090  default:
1091  break;
1092  }
1093  }
1094  }
1095 
1096  while (ftell($fd) < $ThisFileInfo['avdataend']) {
1097  $NextObjectDataHeader = fread($fd, 24);
1098  $offset = 0;
1099  $NextObjectGUID = substr($NextObjectDataHeader, 0, 16);
1100  $offset += 16;
1101  $NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
1102  $NextObjectSize = getid3_lib::LittleEndian2Int(substr($NextObjectDataHeader, $offset, 8));
1103  $offset += 8;
1104 
1105  switch ($NextObjectGUID) {
1106  case GETID3_ASF_Data_Object:
1107  // Data Object: (mandatory, one only)
1108  // Field Name Field Type Size (bits)
1109  // Object ID GUID 128 // GUID for Data object - GETID3_ASF_Data_Object
1110  // Object Size QWORD 64 // size of Data object, including 50 bytes of Data Object header. may be 0 if FilePropertiesObject.BroadcastFlag == 1
1111  // File ID GUID 128 // unique identifier. identical to File ID field in Header Object
1112  // Total Data Packets QWORD 64 // number of Data Packet entries in Data Object. invalid if FilePropertiesObject.BroadcastFlag == 1
1113  // Reserved WORD 16 // hardcoded: 0x0101
1114 
1115  // shortcut
1116  $thisfile_asf['data_object'] = array();
1117  $thisfile_asf_dataobject = &$thisfile_asf['data_object'];
1118 
1119  $DataObjectData = $NextObjectDataHeader.fread($fd, 50 - 24);
1120  $offset = 24;
1121 
1122  $thisfile_asf_dataobject['objectid'] = $NextObjectGUID;
1123  $thisfile_asf_dataobject['objectid_guid'] = $NextObjectGUIDtext;
1124  $thisfile_asf_dataobject['objectsize'] = $NextObjectSize;
1125 
1126  $thisfile_asf_dataobject['fileid'] = substr($DataObjectData, $offset, 16);
1127  $offset += 16;
1128  $thisfile_asf_dataobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_dataobject['fileid']);
1129  $thisfile_asf_dataobject['total_data_packets'] = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 8));
1130  $offset += 8;
1131  $thisfile_asf_dataobject['reserved'] = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 2));
1132  $offset += 2;
1133  if ($thisfile_asf_dataobject['reserved'] != 0x0101) {
1134  $ThisFileInfo['warning'][] = 'data_object.reserved ('.getid3_lib::PrintHexBytes($thisfile_asf_dataobject['reserved']).') does not match expected value of "0x0101"';
1135  //return false;
1136  break;
1137  }
1138 
1139  // Data Packets array of: variable //
1140  // * Error Correction Flags BYTE 8 //
1141  // * * Error Correction Data Length bits 4 // if Error Correction Length Type == 00, size of Error Correction Data in bytes, else hardcoded: 0000
1142  // * * Opaque Data Present bits 1 //
1143  // * * Error Correction Length Type bits 2 // number of bits for size of the error correction data. hardcoded: 00
1144  // * * Error Correction Present bits 1 // If set, use Opaque Data Packet structure, else use Payload structure
1145  // * Error Correction Data
1146 
1147  $ThisFileInfo['avdataoffset'] = ftell($fd);
1148  fseek($fd, ($thisfile_asf_dataobject['objectsize'] - 50), SEEK_CUR); // skip actual audio/video data
1149  $ThisFileInfo['avdataend'] = ftell($fd);
1150  break;
1151 
1152  case GETID3_ASF_Simple_Index_Object:
1153  // Simple Index Object: (optional, recommended, one per video stream)
1154  // Field Name Field Type Size (bits)
1155  // Object ID GUID 128 // GUID for Simple Index object - GETID3_ASF_Data_Object
1156  // Object Size QWORD 64 // size of Simple Index object, including 56 bytes of Simple Index Object header
1157  // File ID GUID 128 // unique identifier. may be zero or identical to File ID field in Data Object and Header Object
1158  // Index Entry Time Interval QWORD 64 // interval between index entries in 100-nanosecond units
1159  // Maximum Packet Count DWORD 32 // maximum packet count for all index entries
1160  // Index Entries Count DWORD 32 // number of Index Entries structures
1161  // Index Entries array of: variable //
1162  // * Packet Number DWORD 32 // number of the Data Packet associated with this index entry
1163  // * Packet Count WORD 16 // number of Data Packets to sent at this index entry
1164 
1165  // shortcut
1166  $thisfile_asf['simple_index_object'] = array();
1167  $thisfile_asf_simpleindexobject = &$thisfile_asf['simple_index_object'];
1168 
1169  $SimpleIndexObjectData = $NextObjectDataHeader.fread($fd, 56 - 24);
1170  $offset = 24;
1171 
1172  $thisfile_asf_simpleindexobject['objectid'] = $NextObjectGUID;
1173  $thisfile_asf_simpleindexobject['objectid_guid'] = $NextObjectGUIDtext;
1174  $thisfile_asf_simpleindexobject['objectsize'] = $NextObjectSize;
1175 
1176  $thisfile_asf_simpleindexobject['fileid'] = substr($SimpleIndexObjectData, $offset, 16);
1177  $offset += 16;
1178  $thisfile_asf_simpleindexobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_simpleindexobject['fileid']);
1179  $thisfile_asf_simpleindexobject['index_entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 8));
1180  $offset += 8;
1181  $thisfile_asf_simpleindexobject['maximum_packet_count'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
1182  $offset += 4;
1183  $thisfile_asf_simpleindexobject['index_entries_count'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
1184  $offset += 4;
1185 
1186  $IndexEntriesData = $SimpleIndexObjectData.fread($fd, 6 * $thisfile_asf_simpleindexobject['index_entries_count']);
1187  for ($IndexEntriesCounter = 0; $IndexEntriesCounter < $thisfile_asf_simpleindexobject['index_entries_count']; $IndexEntriesCounter++) {
1188  $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_number'] = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
1189  $offset += 4;
1190  $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_count'] = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
1191  $offset += 2;
1192  }
1193 
1194  break;
1195 
1196  case GETID3_ASF_Index_Object:
1197  // 6.2 ASF top-level Index Object (optional but recommended when appropriate, 0 or 1)
1198  // Field Name Field Type Size (bits)
1199  // Object ID GUID 128 // GUID for the Index Object - GETID3_ASF_Index_Object
1200  // Object Size QWORD 64 // Specifies the size, in bytes, of the Index Object, including at least 34 bytes of Index Object header
1201  // Index Entry Time Interval DWORD 32 // Specifies the time interval between each index entry in ms.
1202  // Index Specifiers Count WORD 16 // Specifies the number of Index Specifiers structures in this Index Object.
1203  // Index Blocks Count DWORD 32 // Specifies the number of Index Blocks structures in this Index Object.
1204 
1205  // Index Entry Time Interval DWORD 32 // Specifies the time interval between index entries in milliseconds. This value cannot be 0.
1206  // Index Specifiers Count WORD 16 // Specifies the number of entries in the Index Specifiers list. Valid values are 1 and greater.
1207  // Index Specifiers array of: varies //
1208  // * Stream Number WORD 16 // Specifies the stream number that the Index Specifiers refer to. Valid values are between 1 and 127.
1209  // * Index Type WORD 16 // Specifies Index Type values as follows:
1210  // 1 = Nearest Past Data Packet - indexes point to the data packet whose presentation time is closest to the index entry time.
1211  // 2 = Nearest Past Media Object - indexes point to the closest data packet containing an entire object or first fragment of an object.
1212  // 3 = Nearest Past Cleanpoint. - indexes point to the closest data packet containing an entire object (or first fragment of an object) that has the Cleanpoint Flag set.
1213  // Nearest Past Cleanpoint is the most common type of index.
1214  // Index Entry Count DWORD 32 // Specifies the number of Index Entries in the block.
1215  // * Block Positions QWORD varies // Specifies a list of byte offsets of the beginnings of the blocks relative to the beginning of the first Data Packet (i.e., the beginning of the Data Object + 50 bytes). The number of entries in this list is specified by the value of the Index Specifiers Count field. The order of those byte offsets is tied to the order in which Index Specifiers are listed.
1216  // * Index Entries array of: varies //
1217  // * * Offsets DWORD varies // An offset value of 0xffffffff indicates an invalid offset value
1218 
1219  // shortcut
1220  $thisfile_asf['asf_index_object'] = array();
1221  $thisfile_asf_asfindexobject = &$thisfile_asf['asf_index_object'];
1222 
1223  $ASFIndexObjectData = $NextObjectDataHeader.fread($fd, 34 - 24);
1224  $offset = 24;
1225 
1226  $thisfile_asf_asfindexobject['objectid'] = $NextObjectGUID;
1227  $thisfile_asf_asfindexobject['objectid_guid'] = $NextObjectGUIDtext;
1228  $thisfile_asf_asfindexobject['objectsize'] = $NextObjectSize;
1229 
1230  $thisfile_asf_asfindexobject['entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1231  $offset += 4;
1232  $thisfile_asf_asfindexobject['index_specifiers_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1233  $offset += 2;
1234  $thisfile_asf_asfindexobject['index_blocks_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1235  $offset += 4;
1236 
1237  $ASFIndexObjectData .= fread($fd, 4 * $thisfile_asf_asfindexobject['index_specifiers_count']);
1238  for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1239  $IndexSpecifierStreamNumber = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1240  $offset += 2;
1241  $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['stream_number'] = $IndexSpecifierStreamNumber;
1242  $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1243  $offset += 2;
1244  $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type_text'] = $this->ASFIndexObjectIndexTypeLookup($thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type']);
1245  }
1246 
1247  $ASFIndexObjectData .= fread($fd, 4);
1248  $thisfile_asf_asfindexobject['index_entry_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1249  $offset += 4;
1250 
1251  $ASFIndexObjectData .= fread($fd, 8 * $thisfile_asf_asfindexobject['index_specifiers_count']);
1252  for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1253  $thisfile_asf_asfindexobject['block_positions'][$IndexSpecifiersCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 8));
1254  $offset += 8;
1255  }
1256 
1257  $ASFIndexObjectData .= fread($fd, 4 * $thisfile_asf_asfindexobject['index_specifiers_count'] * $thisfile_asf_asfindexobject['index_entry_count']);
1258  for ($IndexEntryCounter = 0; $IndexEntryCounter < $thisfile_asf_asfindexobject['index_entry_count']; $IndexEntryCounter++) {
1259  for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1260  $thisfile_asf_asfindexobject['offsets'][$IndexSpecifiersCounter][$IndexEntryCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1261  $offset += 4;
1262  }
1263  }
1264  break;
1265 
1266 
1267  default:
1268  // Implementations shall ignore any standard or non-standard object that they do not know how to handle.
1269  if ($this->GUIDname($NextObjectGUIDtext)) {
1270  $ThisFileInfo['warning'][] = 'unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF body at offset '.($offset - 16 - 8);
1271  } else {
1272  $ThisFileInfo['warning'][] = 'unknown GUID {'.$NextObjectGUIDtext.'} in ASF body at offset '.(ftell($fd) - 16 - 8);
1273  }
1274  fseek($fd, ($NextObjectSize - 16 - 8), SEEK_CUR);
1275  break;
1276  }
1277  }
1278 
1279  if (isset($thisfile_asf_codeclistobject['codec_entries']) && is_array($thisfile_asf_codeclistobject['codec_entries'])) {
1280  foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
1281  switch ($streamdata['information']) {
1282  case 'WMV1':
1283  case 'WMV2':
1284  case 'WMV3':
1285  $thisfile_video['dataformat'] = 'wmv';
1286  $ThisFileInfo['mime_type'] = 'video/x-ms-wmv';
1287  break;
1288 
1289  case 'MP42':
1290  case 'MP43':
1291  case 'MP4S':
1292  case 'mp4s':
1293  $thisfile_video['dataformat'] = 'asf';
1294  $ThisFileInfo['mime_type'] = 'video/x-ms-asf';
1295  break;
1296 
1297  default:
1298  switch ($streamdata['type_raw']) {
1299  case 1:
1300  if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
1301  $thisfile_video['dataformat'] = 'wmv';
1302  if ($ThisFileInfo['mime_type'] == 'video/x-ms-asf') {
1303  $ThisFileInfo['mime_type'] = 'video/x-ms-wmv';
1304  }
1305  }
1306  break;
1307 
1308  case 2:
1309  if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
1310  $thisfile_audio['dataformat'] = 'wma';
1311  if ($ThisFileInfo['mime_type'] == 'video/x-ms-asf') {
1312  $ThisFileInfo['mime_type'] = 'audio/x-ms-wma';
1313  }
1314  }
1315  break;
1316 
1317  }
1318  break;
1319  }
1320  }
1321  }
1322 
1323  switch (@$thisfile_audio['codec']) {
1324  case 'MPEG Layer-3':
1325  $thisfile_audio['dataformat'] = 'mp3';
1326  break;
1327 
1328  default:
1329  break;
1330  }
1331 
1332  if (isset($thisfile_asf_codeclistobject['codec_entries'])) {
1333  foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
1334  switch ($streamdata['type_raw']) {
1335 
1336  case 1: // video
1337  $thisfile_video['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
1338  break;
1339 
1340  case 2: // audio
1341  $thisfile_audio['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
1342 
1343  // AH 2003-10-01
1344  $thisfile_audio['encoder_options'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][0]['description']);
1345 
1346  $thisfile_audio['codec'] = $thisfile_audio['encoder'];
1347  break;
1348 
1349  default:
1350  $ThisFileInfo['warning'][] = 'Unknown streamtype: [codec_list_object][codec_entries]['.$streamnumber.'][type_raw] == '.$streamdata['type_raw'];
1351  break;
1352 
1353  }
1354  }
1355  }
1356 
1357  if (isset($ThisFileInfo['audio'])) {
1358  $thisfile_audio['lossless'] = (isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false);
1359  $thisfile_audio['dataformat'] = (!empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf');
1360  }
1361  if (!empty($thisfile_video['dataformat'])) {
1362  $thisfile_video['lossless'] = (isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false);
1363  $thisfile_video['pixel_aspect_ratio'] = (isset($thisfile_audio['pixel_aspect_ratio']) ? $thisfile_audio['pixel_aspect_ratio'] : (float) 1);
1364  $thisfile_video['dataformat'] = (!empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf');
1365  }
1366  $ThisFileInfo['bitrate'] = @$thisfile_audio['bitrate'] + @$thisfile_video['bitrate'];
1367  return true;
1368  }
1369 
1370  function ASFCodecListObjectTypeLookup($CodecListType) {
1371  static $ASFCodecListObjectTypeLookup = array();
1372  if (empty($ASFCodecListObjectTypeLookup)) {
1373  $ASFCodecListObjectTypeLookup[0x0001] = 'Video Codec';
1374  $ASFCodecListObjectTypeLookup[0x0002] = 'Audio Codec';
1375  $ASFCodecListObjectTypeLookup[0xFFFF] = 'Unknown Codec';
1376  }
1377 
1378  return (isset($ASFCodecListObjectTypeLookup[$CodecListType]) ? $ASFCodecListObjectTypeLookup[$CodecListType] : 'Invalid Codec Type');
1379  }
1380 
1381  function KnownGUIDs() {
1382  static $GUIDarray = array();
1383  if (empty($GUIDarray)) {
1384  $GUIDarray['GETID3_ASF_Extended_Stream_Properties_Object'] = '14E6A5CB-C672-4332-8399-A96952065B5A';
1385  $GUIDarray['GETID3_ASF_Padding_Object'] = '1806D474-CADF-4509-A4BA-9AABCB96AAE8';
1386  $GUIDarray['GETID3_ASF_Payload_Ext_Syst_Pixel_Aspect_Ratio'] = '1B1EE554-F9EA-4BC8-821A-376B74E4C4B8';
1387  $GUIDarray['GETID3_ASF_Script_Command_Object'] = '1EFB1A30-0B62-11D0-A39B-00A0C90348F6';
1388  $GUIDarray['GETID3_ASF_No_Error_Correction'] = '20FB5700-5B55-11CF-A8FD-00805F5C442B';
1389  $GUIDarray['GETID3_ASF_Content_Branding_Object'] = '2211B3FA-BD23-11D2-B4B7-00A0C955FC6E';
1390  $GUIDarray['GETID3_ASF_Content_Encryption_Object'] = '2211B3FB-BD23-11D2-B4B7-00A0C955FC6E';
1391  $GUIDarray['GETID3_ASF_Digital_Signature_Object'] = '2211B3FC-BD23-11D2-B4B7-00A0C955FC6E';
1392  $GUIDarray['GETID3_ASF_Extended_Content_Encryption_Object'] = '298AE614-2622-4C17-B935-DAE07EE9289C';
1393  $GUIDarray['GETID3_ASF_Simple_Index_Object'] = '33000890-E5B1-11CF-89F4-00A0C90349CB';
1394  $GUIDarray['GETID3_ASF_Degradable_JPEG_Media'] = '35907DE0-E415-11CF-A917-00805F5C442B';
1395  $GUIDarray['GETID3_ASF_Payload_Extension_System_Timecode'] = '399595EC-8667-4E2D-8FDB-98814CE76C1E';
1396  $GUIDarray['GETID3_ASF_Binary_Media'] = '3AFB65E2-47EF-40F2-AC2C-70A90D71D343';
1397  $GUIDarray['GETID3_ASF_Timecode_Index_Object'] = '3CB73FD0-0C4A-4803-953D-EDF7B6228F0C';
1398  $GUIDarray['GETID3_ASF_Metadata_Library_Object'] = '44231C94-9498-49D1-A141-1D134E457054';
1399  $GUIDarray['GETID3_ASF_Reserved_3'] = '4B1ACBE3-100B-11D0-A39B-00A0C90348F6';
1400  $GUIDarray['GETID3_ASF_Reserved_4'] = '4CFEDB20-75F6-11CF-9C0F-00A0C90349CB';
1401  $GUIDarray['GETID3_ASF_Command_Media'] = '59DACFC0-59E6-11D0-A3AC-00A0C90348F6';
1402  $GUIDarray['GETID3_ASF_Header_Extension_Object'] = '5FBF03B5-A92E-11CF-8EE3-00C00C205365';
1403  $GUIDarray['GETID3_ASF_Media_Object_Index_Parameters_Obj'] = '6B203BAD-3F11-4E84-ACA8-D7613DE2CFA7';
1404  $GUIDarray['GETID3_ASF_Header_Object'] = '75B22630-668E-11CF-A6D9-00AA0062CE6C';
1405  $GUIDarray['GETID3_ASF_Content_Description_Object'] = '75B22633-668E-11CF-A6D9-00AA0062CE6C';
1406  $GUIDarray['GETID3_ASF_Error_Correction_Object'] = '75B22635-668E-11CF-A6D9-00AA0062CE6C';
1407  $GUIDarray['GETID3_ASF_Data_Object'] = '75B22636-668E-11CF-A6D9-00AA0062CE6C';
1408  $GUIDarray['GETID3_ASF_Web_Stream_Media_Subtype'] = '776257D4-C627-41CB-8F81-7AC7FF1C40CC';
1409  $GUIDarray['GETID3_ASF_Stream_Bitrate_Properties_Object'] = '7BF875CE-468D-11D1-8D82-006097C9A2B2';
1410  $GUIDarray['GETID3_ASF_Language_List_Object'] = '7C4346A9-EFE0-4BFC-B229-393EDE415C85';
1411  $GUIDarray['GETID3_ASF_Codec_List_Object'] = '86D15240-311D-11D0-A3A4-00A0C90348F6';
1412  $GUIDarray['GETID3_ASF_Reserved_2'] = '86D15241-311D-11D0-A3A4-00A0C90348F6';
1413  $GUIDarray['GETID3_ASF_File_Properties_Object'] = '8CABDCA1-A947-11CF-8EE4-00C00C205365';
1414  $GUIDarray['GETID3_ASF_File_Transfer_Media'] = '91BD222C-F21C-497A-8B6D-5AA86BFC0185';
1415  $GUIDarray['GETID3_ASF_Old_RTP_Extension_Data'] = '96800C63-4C94-11D1-837B-0080C7A37F95';
1416  $GUIDarray['GETID3_ASF_Advanced_Mutual_Exclusion_Object'] = 'A08649CF-4775-4670-8A16-6E35357566CD';
1417  $GUIDarray['GETID3_ASF_Bandwidth_Sharing_Object'] = 'A69609E6-517B-11D2-B6AF-00C04FD908E9';
1418  $GUIDarray['GETID3_ASF_Reserved_1'] = 'ABD3D211-A9BA-11cf-8EE6-00C00C205365';
1419  $GUIDarray['GETID3_ASF_Bandwidth_Sharing_Exclusive'] = 'AF6060AA-5197-11D2-B6AF-00C04FD908E9';
1420  $GUIDarray['GETID3_ASF_Bandwidth_Sharing_Partial'] = 'AF6060AB-5197-11D2-B6AF-00C04FD908E9';
1421  $GUIDarray['GETID3_ASF_JFIF_Media'] = 'B61BE100-5B4E-11CF-A8FD-00805F5C442B';
1422  $GUIDarray['GETID3_ASF_Stream_Properties_Object'] = 'B7DC0791-A9B7-11CF-8EE6-00C00C205365';
1423  $GUIDarray['GETID3_ASF_Video_Media'] = 'BC19EFC0-5B4D-11CF-A8FD-00805F5C442B';
1424  $GUIDarray['GETID3_ASF_Audio_Spread'] = 'BFC3CD50-618F-11CF-8BB2-00AA00B4E220';
1425  $GUIDarray['GETID3_ASF_Metadata_Object'] = 'C5F8CBEA-5BAF-4877-8467-AA8C44FA4CCA';
1426  $GUIDarray['GETID3_ASF_Payload_Ext_Syst_Sample_Duration'] = 'C6BD9450-867F-4907-83A3-C77921B733AD';
1427  $GUIDarray['GETID3_ASF_Group_Mutual_Exclusion_Object'] = 'D1465A40-5A79-4338-B71B-E36B8FD6C249';
1428  $GUIDarray['GETID3_ASF_Extended_Content_Description_Object'] = 'D2D0A440-E307-11D2-97F0-00A0C95EA850';
1429  $GUIDarray['GETID3_ASF_Stream_Prioritization_Object'] = 'D4FED15B-88D3-454F-81F0-ED5C45999E24';
1430  $GUIDarray['GETID3_ASF_Payload_Ext_System_Content_Type'] = 'D590DC20-07BC-436C-9CF7-F3BBFBF1A4DC';
1431  $GUIDarray['GETID3_ASF_Old_File_Properties_Object'] = 'D6E229D0-35DA-11D1-9034-00A0C90349BE';
1432  $GUIDarray['GETID3_ASF_Old_ASF_Header_Object'] = 'D6E229D1-35DA-11D1-9034-00A0C90349BE';
1433  $GUIDarray['GETID3_ASF_Old_ASF_Data_Object'] = 'D6E229D2-35DA-11D1-9034-00A0C90349BE';
1434  $GUIDarray['GETID3_ASF_Index_Object'] = 'D6E229D3-35DA-11D1-9034-00A0C90349BE';
1435  $GUIDarray['GETID3_ASF_Old_Stream_Properties_Object'] = 'D6E229D4-35DA-11D1-9034-00A0C90349BE';
1436  $GUIDarray['GETID3_ASF_Old_Content_Description_Object'] = 'D6E229D5-35DA-11D1-9034-00A0C90349BE';
1437  $GUIDarray['GETID3_ASF_Old_Script_Command_Object'] = 'D6E229D6-35DA-11D1-9034-00A0C90349BE';
1438  $GUIDarray['GETID3_ASF_Old_Marker_Object'] = 'D6E229D7-35DA-11D1-9034-00A0C90349BE';
1439  $GUIDarray['GETID3_ASF_Old_Component_Download_Object'] = 'D6E229D8-35DA-11D1-9034-00A0C90349BE';
1440  $GUIDarray['GETID3_ASF_Old_Stream_Group_Object'] = 'D6E229D9-35DA-11D1-9034-00A0C90349BE';
1441  $GUIDarray['GETID3_ASF_Old_Scalable_Object'] = 'D6E229DA-35DA-11D1-9034-00A0C90349BE';
1442  $GUIDarray['GETID3_ASF_Old_Prioritization_Object'] = 'D6E229DB-35DA-11D1-9034-00A0C90349BE';
1443  $GUIDarray['GETID3_ASF_Bitrate_Mutual_Exclusion_Object'] = 'D6E229DC-35DA-11D1-9034-00A0C90349BE';
1444  $GUIDarray['GETID3_ASF_Old_Inter_Media_Dependency_Object'] = 'D6E229DD-35DA-11D1-9034-00A0C90349BE';
1445  $GUIDarray['GETID3_ASF_Old_Rating_Object'] = 'D6E229DE-35DA-11D1-9034-00A0C90349BE';
1446  $GUIDarray['GETID3_ASF_Index_Parameters_Object'] = 'D6E229DF-35DA-11D1-9034-00A0C90349BE';
1447  $GUIDarray['GETID3_ASF_Old_Color_Table_Object'] = 'D6E229E0-35DA-11D1-9034-00A0C90349BE';
1448  $GUIDarray['GETID3_ASF_Old_Language_List_Object'] = 'D6E229E1-35DA-11D1-9034-00A0C90349BE';
1449  $GUIDarray['GETID3_ASF_Old_Audio_Media'] = 'D6E229E2-35DA-11D1-9034-00A0C90349BE';
1450  $GUIDarray['GETID3_ASF_Old_Video_Media'] = 'D6E229E3-35DA-11D1-9034-00A0C90349BE';
1451  $GUIDarray['GETID3_ASF_Old_Image_Media'] = 'D6E229E4-35DA-11D1-9034-00A0C90349BE';
1452  $GUIDarray['GETID3_ASF_Old_Timecode_Media'] = 'D6E229E5-35DA-11D1-9034-00A0C90349BE';
1453  $GUIDarray['GETID3_ASF_Old_Text_Media'] = 'D6E229E6-35DA-11D1-9034-00A0C90349BE';
1454  $GUIDarray['GETID3_ASF_Old_MIDI_Media'] = 'D6E229E7-35DA-11D1-9034-00A0C90349BE';
1455  $GUIDarray['GETID3_ASF_Old_Command_Media'] = 'D6E229E8-35DA-11D1-9034-00A0C90349BE';
1456  $GUIDarray['GETID3_ASF_Old_No_Error_Concealment'] = 'D6E229EA-35DA-11D1-9034-00A0C90349BE';
1457  $GUIDarray['GETID3_ASF_Old_Scrambled_Audio'] = 'D6E229EB-35DA-11D1-9034-00A0C90349BE';
1458  $GUIDarray['GETID3_ASF_Old_No_Color_Table'] = 'D6E229EC-35DA-11D1-9034-00A0C90349BE';
1459  $GUIDarray['GETID3_ASF_Old_SMPTE_Time'] = 'D6E229ED-35DA-11D1-9034-00A0C90349BE';
1460  $GUIDarray['GETID3_ASF_Old_ASCII_Text'] = 'D6E229EE-35DA-11D1-9034-00A0C90349BE';
1461  $GUIDarray['GETID3_ASF_Old_Unicode_Text'] = 'D6E229EF-35DA-11D1-9034-00A0C90349BE';
1462  $GUIDarray['GETID3_ASF_Old_HTML_Text'] = 'D6E229F0-35DA-11D1-9034-00A0C90349BE';
1463  $GUIDarray['GETID3_ASF_Old_URL_Command'] = 'D6E229F1-35DA-11D1-9034-00A0C90349BE';
1464  $GUIDarray['GETID3_ASF_Old_Filename_Command'] = 'D6E229F2-35DA-11D1-9034-00A0C90349BE';
1465  $GUIDarray['GETID3_ASF_Old_ACM_Codec'] = 'D6E229F3-35DA-11D1-9034-00A0C90349BE';
1466  $GUIDarray['GETID3_ASF_Old_VCM_Codec'] = 'D6E229F4-35DA-11D1-9034-00A0C90349BE';
1467  $GUIDarray['GETID3_ASF_Old_QuickTime_Codec'] = 'D6E229F5-35DA-11D1-9034-00A0C90349BE';
1468  $GUIDarray['GETID3_ASF_Old_DirectShow_Transform_Filter'] = 'D6E229F6-35DA-11D1-9034-00A0C90349BE';
1469  $GUIDarray['GETID3_ASF_Old_DirectShow_Rendering_Filter'] = 'D6E229F7-35DA-11D1-9034-00A0C90349BE';
1470  $GUIDarray['GETID3_ASF_Old_No_Enhancement'] = 'D6E229F8-35DA-11D1-9034-00A0C90349BE';
1471  $GUIDarray['GETID3_ASF_Old_Unknown_Enhancement_Type'] = 'D6E229F9-35DA-11D1-9034-00A0C90349BE';
1472  $GUIDarray['GETID3_ASF_Old_Temporal_Enhancement'] = 'D6E229FA-35DA-11D1-9034-00A0C90349BE';
1473  $GUIDarray['GETID3_ASF_Old_Spatial_Enhancement'] = 'D6E229FB-35DA-11D1-9034-00A0C90349BE';
1474  $GUIDarray['GETID3_ASF_Old_Quality_Enhancement'] = 'D6E229FC-35DA-11D1-9034-00A0C90349BE';
1475  $GUIDarray['GETID3_ASF_Old_Number_of_Channels_Enhancement'] = 'D6E229FD-35DA-11D1-9034-00A0C90349BE';
1476  $GUIDarray['GETID3_ASF_Old_Frequency_Response_Enhancement'] = 'D6E229FE-35DA-11D1-9034-00A0C90349BE';
1477  $GUIDarray['GETID3_ASF_Old_Media_Object'] = 'D6E229FF-35DA-11D1-9034-00A0C90349BE';
1478  $GUIDarray['GETID3_ASF_Mutex_Language'] = 'D6E22A00-35DA-11D1-9034-00A0C90349BE';
1479  $GUIDarray['GETID3_ASF_Mutex_Bitrate'] = 'D6E22A01-35DA-11D1-9034-00A0C90349BE';
1480  $GUIDarray['GETID3_ASF_Mutex_Unknown'] = 'D6E22A02-35DA-11D1-9034-00A0C90349BE';
1481  $GUIDarray['GETID3_ASF_Old_ASF_Placeholder_Object'] = 'D6E22A0E-35DA-11D1-9034-00A0C90349BE';
1482  $GUIDarray['GETID3_ASF_Old_Data_Unit_Extension_Object'] = 'D6E22A0F-35DA-11D1-9034-00A0C90349BE';
1483  $GUIDarray['GETID3_ASF_Web_Stream_Format'] = 'DA1E6B13-8359-4050-B398-388E965BF00C';
1484  $GUIDarray['GETID3_ASF_Payload_Ext_System_File_Name'] = 'E165EC0E-19ED-45D7-B4A7-25CBD1E28E9B';
1485  $GUIDarray['GETID3_ASF_Marker_Object'] = 'F487CD01-A951-11CF-8EE6-00C00C205365';
1486  $GUIDarray['GETID3_ASF_Timecode_Index_Parameters_Object'] = 'F55E496D-9797-4B5D-8C8B-604DFE9BFB24';
1487  $GUIDarray['GETID3_ASF_Audio_Media'] = 'F8699E40-5B4D-11CF-A8FD-00805F5C442B';
1488  $GUIDarray['GETID3_ASF_Media_Object_Index_Object'] = 'FEB103F8-12AD-4C64-840F-2A1D2F7AD48C';
1489  $GUIDarray['GETID3_ASF_Alt_Extended_Content_Encryption_Obj'] = 'FF889EF1-ADEE-40DA-9E71-98704BB928CE';
1490  }
1491  return $GUIDarray;
1492  }
1493 
1494  function GUIDname($GUIDstring) {
1495  static $GUIDarray = array();
1496  if (empty($GUIDarray)) {
1497  $GUIDarray = $this->KnownGUIDs();
1498  }
1499  return array_search($GUIDstring, $GUIDarray);
1500  }
1501 
1502  function ASFIndexObjectIndexTypeLookup($id) {
1503  static $ASFIndexObjectIndexTypeLookup = array();
1504  if (empty($ASFIndexObjectIndexTypeLookup)) {
1505  $ASFIndexObjectIndexTypeLookup[1] = 'Nearest Past Data Packet';
1506  $ASFIndexObjectIndexTypeLookup[2] = 'Nearest Past Media Object';
1507  $ASFIndexObjectIndexTypeLookup[3] = 'Nearest Past Cleanpoint';
1508  }
1509  return (isset($ASFIndexObjectIndexTypeLookup[$id]) ? $ASFIndexObjectIndexTypeLookup[$id] : 'invalid');
1510  }
1511 
1512  function GUIDtoBytestring($GUIDstring) {
1513  // Microsoft defines these 16-byte (128-bit) GUIDs in the strangest way:
1514  // first 4 bytes are in little-endian order
1515  // next 2 bytes are appended in little-endian order
1516  // next 2 bytes are appended in little-endian order
1517  // next 2 bytes are appended in big-endian order
1518  // next 6 bytes are appended in big-endian order
1519 
1520  // AaBbCcDd-EeFf-GgHh-IiJj-KkLlMmNnOoPp is stored as this 16-byte string:
1521  // $Dd $Cc $Bb $Aa $Ff $Ee $Hh $Gg $Ii $Jj $Kk $Ll $Mm $Nn $Oo $Pp
1522 
1523  $hexbytecharstring = chr(hexdec(substr($GUIDstring, 6, 2)));
1524  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 4, 2)));
1525  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 2, 2)));
1526  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 0, 2)));
1527 
1528  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 11, 2)));
1529  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 9, 2)));
1530 
1531  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 16, 2)));
1532  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 14, 2)));
1533 
1534  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 19, 2)));
1535  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 21, 2)));
1536 
1537  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 24, 2)));
1538  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 26, 2)));
1539  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 28, 2)));
1540  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 30, 2)));
1541  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 32, 2)));
1542  $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 34, 2)));
1543 
1544  return $hexbytecharstring;
1545  }
1546 
1547  function BytestringToGUID($Bytestring) {
1548  $GUIDstring = str_pad(dechex(ord($Bytestring{3})), 2, '0', STR_PAD_LEFT);
1549  $GUIDstring .= str_pad(dechex(ord($Bytestring{2})), 2, '0', STR_PAD_LEFT);
1550  $GUIDstring .= str_pad(dechex(ord($Bytestring{1})), 2, '0', STR_PAD_LEFT);
1551  $GUIDstring .= str_pad(dechex(ord($Bytestring{0})), 2, '0', STR_PAD_LEFT);
1552  $GUIDstring .= '-';
1553  $GUIDstring .= str_pad(dechex(ord($Bytestring{5})), 2, '0', STR_PAD_LEFT);
1554  $GUIDstring .= str_pad(dechex(ord($Bytestring{4})), 2, '0', STR_PAD_LEFT);
1555  $GUIDstring .= '-';
1556  $GUIDstring .= str_pad(dechex(ord($Bytestring{7})), 2, '0', STR_PAD_LEFT);
1557  $GUIDstring .= str_pad(dechex(ord($Bytestring{6})), 2, '0', STR_PAD_LEFT);
1558  $GUIDstring .= '-';
1559  $GUIDstring .= str_pad(dechex(ord($Bytestring{8})), 2, '0', STR_PAD_LEFT);
1560  $GUIDstring .= str_pad(dechex(ord($Bytestring{9})), 2, '0', STR_PAD_LEFT);
1561  $GUIDstring .= '-';
1562  $GUIDstring .= str_pad(dechex(ord($Bytestring{10})), 2, '0', STR_PAD_LEFT);
1563  $GUIDstring .= str_pad(dechex(ord($Bytestring{11})), 2, '0', STR_PAD_LEFT);
1564  $GUIDstring .= str_pad(dechex(ord($Bytestring{12})), 2, '0', STR_PAD_LEFT);
1565  $GUIDstring .= str_pad(dechex(ord($Bytestring{13})), 2, '0', STR_PAD_LEFT);
1566  $GUIDstring .= str_pad(dechex(ord($Bytestring{14})), 2, '0', STR_PAD_LEFT);
1567  $GUIDstring .= str_pad(dechex(ord($Bytestring{15})), 2, '0', STR_PAD_LEFT);
1568 
1569  return strtoupper($GUIDstring);
1570  }
1571 
1572  function FILETIMEtoUNIXtime($FILETIME, $round=true) {
1573  // FILETIME is a 64-bit unsigned integer representing
1574  // the number of 100-nanosecond intervals since January 1, 1601
1575  // UNIX timestamp is number of seconds since January 1, 1970
1576  // 116444736000000000 = 10000000 * 60 * 60 * 24 * 365 * 369 + 89 leap days
1577  if ($round) {
1578  return intval(round(($FILETIME - 116444736000000000) / 10000000));
1579  }
1580  return ($FILETIME - 116444736000000000) / 10000000;
1581  }
1582 
1583  function WMpictureTypeLookup($WMpictureType) {
1584  static $WMpictureTypeLookup = array();
1585  if (empty($WMpictureTypeLookup)) {
1586  $WMpictureTypeLookup[0x03] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Front Cover');
1587  $WMpictureTypeLookup[0x04] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Back Cover');
1588  $WMpictureTypeLookup[0x00] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'User Defined');
1589  $WMpictureTypeLookup[0x05] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Leaflet Page');
1590  $WMpictureTypeLookup[0x06] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Media Label');
1591  $WMpictureTypeLookup[0x07] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Lead Artist');
1592  $WMpictureTypeLookup[0x08] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Artist');
1593  $WMpictureTypeLookup[0x09] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Conductor');
1594  $WMpictureTypeLookup[0x0A] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Band');
1595  $WMpictureTypeLookup[0x0B] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Composer');
1596  $WMpictureTypeLookup[0x0C] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Lyricist');
1597  $WMpictureTypeLookup[0x0D] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Recording Location');
1598  $WMpictureTypeLookup[0x0E] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'During Recording');
1599  $WMpictureTypeLookup[0x0F] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'During Performance');
1600  $WMpictureTypeLookup[0x10] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Video Screen Capture');
1601  $WMpictureTypeLookup[0x12] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Illustration');
1602  $WMpictureTypeLookup[0x13] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Band Logotype');
1603  $WMpictureTypeLookup[0x14] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Publisher Logotype');
1604  }
1605  return @$WMpictureTypeLookup[$WMpictureType];
1606  }
1607 
1608 
1609  // Remove terminator 00 00 and convert UNICODE to Latin-1
1610  function TrimConvert($string) {
1611 
1612  // remove terminator, only if present (it should be, but...)
1613  if (substr($string, strlen($string) - 2, 2) == "\x00\x00") {
1614  $string = substr($string, 0, strlen($string) - 2);
1615  }
1616 
1617  // convert
1618  return trim(getid3_lib::iconv_fallback('UTF-16LE', 'ISO-8859-1', $string), ' ');
1619  }
1620 
1621 
1622  function TrimTerm($string) {
1623 
1624  // remove terminator, only if present (it should be, but...)
1625  if (substr($string, -2) == "\x00\x00") {
1626  $string = substr($string, 0, -2);
1627  }
1628  return $string;
1629  }
1630 
1631 
1632 }
1633 
1634 
1635 ?>