1<?php
2/////////////////////////////////////////////////////////////////
3/// getID3() by James Heinrich <info@getid3.org> //
4// available at https://github.com/JamesHeinrich/getID3 //
5// or https://www.getid3.org //
6// or http://getid3.sourceforge.net //
7// see readme.txt for more details //
8/////////////////////////////////////////////////////////////////
9// //
10// module.audio-video.asf.php //
11// module for analyzing ASF, WMA and WMV files //
12// dependencies: module.audio-video.riff.php //
13// ///
14/////////////////////////////////////////////////////////////////
15
16if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
17 exit;
18}
19getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);
20
21class getid3_asf extends getid3_handler
22{
23 protected static $ASFIndexParametersObjectIndexSpecifiersIndexTypes = array(
24 1 => 'Nearest Past Data Packet',
25 2 => 'Nearest Past Media Object',
26 3 => 'Nearest Past Cleanpoint'
27 );
28
29 protected static $ASFMediaObjectIndexParametersObjectIndexSpecifiersIndexTypes = array(
30 1 => 'Nearest Past Data Packet',
31 2 => 'Nearest Past Media Object',
32 3 => 'Nearest Past Cleanpoint',
33 0xFF => 'Frame Number Offset'
34 );
35
36 protected static $ASFTimecodeIndexParametersObjectIndexSpecifiersIndexTypes = array(
37 2 => 'Nearest Past Media Object',
38 3 => 'Nearest Past Cleanpoint'
39 );
40
41 /**
42 * @param getID3 $getid3
43 */
44 public function __construct(getID3 $getid3) {
45 parent::__construct($getid3); // extends getid3_handler::__construct()
46
47 // initialize all GUID constants
48 $GUIDarray = $this->KnownGUIDs();
49 foreach ($GUIDarray as $GUIDname => $hexstringvalue) {
50 if (!defined($GUIDname)) {
51 define($GUIDname, $this->GUIDtoBytestring($hexstringvalue));
52 }
53 }
54 }
55
56 /**
57 * @return bool
58 */
59 public function Analyze() {
60 $info = &$this->getid3->info;
61
62 // Shortcuts
63 $thisfile_audio = &$info['audio'];
64 $thisfile_video = &$info['video'];
65 $info['asf'] = array();
66 $thisfile_asf = &$info['asf'];
67 $thisfile_asf['comments'] = array();
68 $thisfile_asf_comments = &$thisfile_asf['comments'];
69 $thisfile_asf['header_object'] = array();
70 $thisfile_asf_headerobject = &$thisfile_asf['header_object'];
71
72
73 // ASF structure:
74 // * Header Object [required]
75 // * File Properties Object [required] (global file attributes)
76 // * Stream Properties Object [required] (defines media stream & characteristics)
77 // * Header Extension Object [required] (additional functionality)
78 // * Content Description Object (bibliographic information)
79 // * Script Command Object (commands for during playback)
80 // * Marker Object (named jumped points within the file)
81 // * Data Object [required]
82 // * Data Packets
83 // * Index Object
84
85 // Header Object: (mandatory, one only)
86 // Field Name Field Type Size (bits)
87 // Object ID GUID 128 // GUID for header object - GETID3_ASF_Header_Object
88 // Object Size QWORD 64 // size of header object, including 30 bytes of Header Object header
89 // Number of Header Objects DWORD 32 // number of objects in header object
90 // Reserved1 BYTE 8 // hardcoded: 0x01
91 // Reserved2 BYTE 8 // hardcoded: 0x02
92
93 $info['fileformat'] = 'asf';
94
95 $this->fseek($info['avdataoffset']);
96 $HeaderObjectData = $this->fread(30);
97
98 $thisfile_asf_headerobject['objectid'] = substr($HeaderObjectData, 0, 16);
99 $thisfile_asf_headerobject['objectid_guid'] = $this->BytestringToGUID($thisfile_asf_headerobject['objectid']);
100 if ($thisfile_asf_headerobject['objectid'] != GETID3_ASF_Header_Object) {
101 unset($info['fileformat'], $info['asf']);
102 return $this->error('ASF header GUID {'.$this->BytestringToGUID($thisfile_asf_headerobject['objectid']).'} does not match expected "GETID3_ASF_Header_Object" GUID {'.$this->BytestringToGUID(GETID3_ASF_Header_Object).'}');
103 }
104 $thisfile_asf_headerobject['objectsize'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 16, 8));
105 $thisfile_asf_headerobject['headerobjects'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 24, 4));
106 $thisfile_asf_headerobject['reserved1'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 28, 1));
107 $thisfile_asf_headerobject['reserved2'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 29, 1));
108
109 $NextObjectOffset = $this->ftell();
110 $ASFHeaderData = $this->fread($thisfile_asf_headerobject['objectsize'] - 30);
111 $offset = 0;
112 $thisfile_asf_streambitratepropertiesobject = array();
113 $thisfile_asf_codeclistobject = array();
114 $StreamPropertiesObjectData = array();
115
116 for ($HeaderObjectsCounter = 0; $HeaderObjectsCounter < $thisfile_asf_headerobject['headerobjects']; $HeaderObjectsCounter++) {
117 $NextObjectGUID = substr($ASFHeaderData, $offset, 16);
118 $offset += 16;
119 $NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
120 $NextObjectSize = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
121 $offset += 8;
122 switch ($NextObjectGUID) {
123
124 case GETID3_ASF_File_Properties_Object:
125 // File Properties Object: (mandatory, one only)
126 // Field Name Field Type Size (bits)
127 // Object ID GUID 128 // GUID for file properties object - GETID3_ASF_File_Properties_Object
128 // Object Size QWORD 64 // size of file properties object, including 104 bytes of File Properties Object header
129 // File ID GUID 128 // unique ID - identical to File ID in Data Object
130 // File Size QWORD 64 // entire file in bytes. Invalid if Broadcast Flag == 1
131 // Creation Date QWORD 64 // date & time of file creation. Maybe invalid if Broadcast Flag == 1
132 // Data Packets Count QWORD 64 // number of data packets in Data Object. Invalid if Broadcast Flag == 1
133 // Play Duration QWORD 64 // playtime, in 100-nanosecond units. Invalid if Broadcast Flag == 1
134 // Send Duration QWORD 64 // time needed to send file, in 100-nanosecond units. Players can ignore this value. Invalid if Broadcast Flag == 1
135 // 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
136 // Flags DWORD 32 //
137 // * Broadcast Flag bits 1 (0x01) // file is currently being written, some header values are invalid
138 // * Seekable Flag bits 1 (0x02) // is file seekable
139 // * Reserved bits 30 (0xFFFFFFFC) // reserved - set to zero
140 // Minimum Data Packet Size DWORD 32 // in bytes. should be same as Maximum Data Packet Size. Invalid if Broadcast Flag == 1
141 // Maximum Data Packet Size DWORD 32 // in bytes. should be same as Minimum Data Packet Size. Invalid if Broadcast Flag == 1
142 // Maximum Bitrate DWORD 32 // maximum instantaneous bitrate in bits per second for entire file, including all data streams and ASF overhead
143
144 // shortcut
145 $thisfile_asf['file_properties_object'] = array();
146 $thisfile_asf_filepropertiesobject = &$thisfile_asf['file_properties_object'];
147
148 $thisfile_asf_filepropertiesobject['offset'] = $NextObjectOffset + $offset;
149 $thisfile_asf_filepropertiesobject['objectid'] = $NextObjectGUID;
150 $thisfile_asf_filepropertiesobject['objectid_guid'] = $NextObjectGUIDtext;
151 $thisfile_asf_filepropertiesobject['objectsize'] = $NextObjectSize;
152 $thisfile_asf_filepropertiesobject['fileid'] = substr($ASFHeaderData, $offset, 16);
153 $offset += 16;
154 $thisfile_asf_filepropertiesobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_filepropertiesobject['fileid']);
155 $thisfile_asf_filepropertiesobject['filesize'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
156 $offset += 8;
157 $thisfile_asf_filepropertiesobject['creation_date'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
158 $thisfile_asf_filepropertiesobject['creation_date_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_filepropertiesobject['creation_date']);
159 $offset += 8;
160 $thisfile_asf_filepropertiesobject['data_packets'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
161 $offset += 8;
162 $thisfile_asf_filepropertiesobject['play_duration'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
163 $offset += 8;
164 $thisfile_asf_filepropertiesobject['send_duration'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
165 $offset += 8;
166 $thisfile_asf_filepropertiesobject['preroll'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
167 $offset += 8;
168 $thisfile_asf_filepropertiesobject['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
169 $offset += 4;
170 $thisfile_asf_filepropertiesobject['flags']['broadcast'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0001);
171 $thisfile_asf_filepropertiesobject['flags']['seekable'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0002);
172
173 $thisfile_asf_filepropertiesobject['min_packet_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
174 $offset += 4;
175 $thisfile_asf_filepropertiesobject['max_packet_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
176 $offset += 4;
177 $thisfile_asf_filepropertiesobject['max_bitrate'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
178 $offset += 4;
179
180 if ($thisfile_asf_filepropertiesobject['flags']['broadcast']) {
181
182 // broadcast flag is set, some values invalid
183 unset($thisfile_asf_filepropertiesobject['filesize']);
184 unset($thisfile_asf_filepropertiesobject['data_packets']);
185 unset($thisfile_asf_filepropertiesobject['play_duration']);
186 unset($thisfile_asf_filepropertiesobject['send_duration']);
187 unset($thisfile_asf_filepropertiesobject['min_packet_size']);
188 unset($thisfile_asf_filepropertiesobject['max_packet_size']);
189
190 } else {
191
192 // broadcast flag NOT set, perform calculations
193 $info['playtime_seconds'] = ($thisfile_asf_filepropertiesobject['play_duration'] / 10000000) - ($thisfile_asf_filepropertiesobject['preroll'] / 1000);
194
195 //$info['bitrate'] = $thisfile_asf_filepropertiesobject['max_bitrate'];
196 $info['bitrate'] = getid3_lib::SafeDiv($thisfile_asf_filepropertiesobject['filesize'] * 8, $info['playtime_seconds']);
197 }
198 break;
199
200 case GETID3_ASF_Stream_Properties_Object:
201 // Stream Properties Object: (mandatory, one per media stream)
202 // Field Name Field Type Size (bits)
203 // Object ID GUID 128 // GUID for stream properties object - GETID3_ASF_Stream_Properties_Object
204 // Object Size QWORD 64 // size of stream properties object, including 78 bytes of Stream Properties Object header
205 // Stream Type GUID 128 // GETID3_ASF_Audio_Media, GETID3_ASF_Video_Media or GETID3_ASF_Command_Media
206 // Error Correction Type GUID 128 // GETID3_ASF_Audio_Spread for audio-only streams, GETID3_ASF_No_Error_Correction for other stream types
207 // Time Offset QWORD 64 // 100-nanosecond units. typically zero. added to all timestamps of samples in the stream
208 // Type-Specific Data Length DWORD 32 // number of bytes for Type-Specific Data field
209 // Error Correction Data Length DWORD 32 // number of bytes for Error Correction Data field
210 // Flags WORD 16 //
211 // * Stream Number bits 7 (0x007F) // number of this stream. 1 <= valid <= 127
212 // * Reserved bits 8 (0x7F80) // reserved - set to zero
213 // * Encrypted Content Flag bits 1 (0x8000) // stream contents encrypted if set
214 // Reserved DWORD 32 // reserved - set to zero
215 // Type-Specific Data BYTESTREAM variable // type-specific format data, depending on value of Stream Type
216 // Error Correction Data BYTESTREAM variable // error-correction-specific format data, depending on value of Error Correct Type
217
218 // There is one GETID3_ASF_Stream_Properties_Object for each stream (audio, video) but the
219 // stream number isn't known until halfway through decoding the structure, hence it
220 // it is decoded to a temporary variable and then stuck in the appropriate index later
221
222 $StreamPropertiesObjectData['offset'] = $NextObjectOffset + $offset;
223 $StreamPropertiesObjectData['objectid'] = $NextObjectGUID;
224 $StreamPropertiesObjectData['objectid_guid'] = $NextObjectGUIDtext;
225 $StreamPropertiesObjectData['objectsize'] = $NextObjectSize;
226 $StreamPropertiesObjectData['stream_type'] = substr($ASFHeaderData, $offset, 16);
227 $offset += 16;
228 $StreamPropertiesObjectData['stream_type_guid'] = $this->BytestringToGUID($StreamPropertiesObjectData['stream_type']);
229 $StreamPropertiesObjectData['error_correct_type'] = substr($ASFHeaderData, $offset, 16);
230 $offset += 16;
231 $StreamPropertiesObjectData['error_correct_guid'] = $this->BytestringToGUID($StreamPropertiesObjectData['error_correct_type']);
232 $StreamPropertiesObjectData['time_offset'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
233 $offset += 8;
234 $StreamPropertiesObjectData['type_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
235 $offset += 4;
236 $StreamPropertiesObjectData['error_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
237 $offset += 4;
238 $StreamPropertiesObjectData['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
239 $offset += 2;
240 $StreamPropertiesObjectStreamNumber = $StreamPropertiesObjectData['flags_raw'] & 0x007F;
241 $StreamPropertiesObjectData['flags']['encrypted'] = (bool) ($StreamPropertiesObjectData['flags_raw'] & 0x8000);
242
243 $offset += 4; // reserved - DWORD
244 $StreamPropertiesObjectData['type_specific_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['type_data_length']);
245 $offset += $StreamPropertiesObjectData['type_data_length'];
246 $StreamPropertiesObjectData['error_correct_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['error_data_length']);
247 $offset += $StreamPropertiesObjectData['error_data_length'];
248
249 switch ($StreamPropertiesObjectData['stream_type']) {
250
251 case GETID3_ASF_Audio_Media:
252 $thisfile_audio['dataformat'] = (!empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf');
253 $thisfile_audio['bitrate_mode'] = (!empty($thisfile_audio['bitrate_mode']) ? $thisfile_audio['bitrate_mode'] : 'cbr');
254
255 $audiodata = getid3_riff::parseWAVEFORMATex(substr($StreamPropertiesObjectData['type_specific_data'], 0, 16));
256 unset($audiodata['raw']);
257 $thisfile_audio = getid3_lib::array_merge_noclobber($audiodata, $thisfile_audio);
258 break;
259
260 case GETID3_ASF_Video_Media:
261 $thisfile_video['dataformat'] = (!empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf');
262 $thisfile_video['bitrate_mode'] = (!empty($thisfile_video['bitrate_mode']) ? $thisfile_video['bitrate_mode'] : 'cbr');
263 break;
264
265 case GETID3_ASF_Command_Media:
266 default:
267 // do nothing
268 break;
269
270 }
271
272 $thisfile_asf['stream_properties_object'][$StreamPropertiesObjectStreamNumber] = $StreamPropertiesObjectData;
273 unset($StreamPropertiesObjectData); // clear for next stream, if any
274 break;
275
276 case GETID3_ASF_Header_Extension_Object:
277 // Header Extension Object: (mandatory, one only)
278 // Field Name Field Type Size (bits)
279 // Object ID GUID 128 // GUID for Header Extension object - GETID3_ASF_Header_Extension_Object
280 // Object Size QWORD 64 // size of Header Extension object, including 46 bytes of Header Extension Object header
281 // Reserved Field 1 GUID 128 // hardcoded: GETID3_ASF_Reserved_1
282 // Reserved Field 2 WORD 16 // hardcoded: 0x00000006
283 // Header Extension Data Size DWORD 32 // in bytes. valid: 0, or > 24. equals object size minus 46
284 // Header Extension Data BYTESTREAM variable // array of zero or more extended header objects
285
286 // shortcut
287 $thisfile_asf['header_extension_object'] = array();
288 $thisfile_asf_headerextensionobject = &$thisfile_asf['header_extension_object'];
289
290 $thisfile_asf_headerextensionobject['offset'] = $NextObjectOffset + $offset;
291 $thisfile_asf_headerextensionobject['objectid'] = $NextObjectGUID;
292 $thisfile_asf_headerextensionobject['objectid_guid'] = $NextObjectGUIDtext;
293 $thisfile_asf_headerextensionobject['objectsize'] = $NextObjectSize;
294 $thisfile_asf_headerextensionobject['reserved_1'] = substr($ASFHeaderData, $offset, 16);
295 $offset += 16;
296 $thisfile_asf_headerextensionobject['reserved_1_guid'] = $this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']);
297 if ($thisfile_asf_headerextensionobject['reserved_1'] != GETID3_ASF_Reserved_1) {
298 $this->warning('header_extension_object.reserved_1 GUID ('.$this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']).') does not match expected "GETID3_ASF_Reserved_1" GUID ('.$this->BytestringToGUID(GETID3_ASF_Reserved_1).')');
299 //return false;
300 break;
301 }
302 $thisfile_asf_headerextensionobject['reserved_2'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
303 $offset += 2;
304 if ($thisfile_asf_headerextensionobject['reserved_2'] != 6) {
305 $this->warning('header_extension_object.reserved_2 ('.$thisfile_asf_headerextensionobject['reserved_2'].') does not match expected value of "6"');
306 //return false;
307 break;
308 }
309 $thisfile_asf_headerextensionobject['extension_data_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
310 $offset += 4;
311 $thisfile_asf_headerextensionobject['extension_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_headerextensionobject['extension_data_size']);
312 $unhandled_sections = 0;
313 $thisfile_asf_headerextensionobject['extension_data_parsed'] = $this->HeaderExtensionObjectDataParse($thisfile_asf_headerextensionobject['extension_data'], $unhandled_sections);
314 if ($unhandled_sections === 0) {
315 unset($thisfile_asf_headerextensionobject['extension_data']);
316 }
317 $offset += $thisfile_asf_headerextensionobject['extension_data_size'];
318 break;
319
320 case GETID3_ASF_Codec_List_Object:
321 // Codec List Object: (optional, one only)
322 // Field Name Field Type Size (bits)
323 // Object ID GUID 128 // GUID for Codec List object - GETID3_ASF_Codec_List_Object
324 // Object Size QWORD 64 // size of Codec List object, including 44 bytes of Codec List Object header
325 // Reserved GUID 128 // hardcoded: 86D15241-311D-11D0-A3A4-00A0C90348F6
326 // Codec Entries Count DWORD 32 // number of entries in Codec Entries array
327 // Codec Entries array of: variable //
328 // * Type WORD 16 // 0x0001 = Video Codec, 0x0002 = Audio Codec, 0xFFFF = Unknown Codec
329 // * Codec Name Length WORD 16 // number of Unicode characters stored in the Codec Name field
330 // * Codec Name WCHAR variable // array of Unicode characters - name of codec used to create the content
331 // * Codec Description Length WORD 16 // number of Unicode characters stored in the Codec Description field
332 // * Codec Description WCHAR variable // array of Unicode characters - description of format used to create the content
333 // * Codec Information Length WORD 16 // number of Unicode characters stored in the Codec Information field
334 // * Codec Information BYTESTREAM variable // opaque array of information bytes about the codec used to create the content
335
336 // shortcut
337 $thisfile_asf['codec_list_object'] = array();
338 /** @var mixed[] $thisfile_asf_codeclistobject */
339 $thisfile_asf_codeclistobject = &$thisfile_asf['codec_list_object']; // @phpstan-ignore-line
340
341 $thisfile_asf_codeclistobject['offset'] = $NextObjectOffset + $offset;
342 $thisfile_asf_codeclistobject['objectid'] = $NextObjectGUID;
343 $thisfile_asf_codeclistobject['objectid_guid'] = $NextObjectGUIDtext;
344 $thisfile_asf_codeclistobject['objectsize'] = $NextObjectSize;
345 $thisfile_asf_codeclistobject['reserved'] = substr($ASFHeaderData, $offset, 16);
346 $offset += 16;
347 $thisfile_asf_codeclistobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']);
348 if ($thisfile_asf_codeclistobject['reserved'] != $this->GUIDtoBytestring('86D15241-311D-11D0-A3A4-00A0C90348F6')) {
349 $this->warning('codec_list_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {86D15241-311D-11D0-A3A4-00A0C90348F6}');
350 //return false;
351 break;
352 }
353 $thisfile_asf_codeclistobject['codec_entries_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
354 if ($thisfile_asf_codeclistobject['codec_entries_count'] > 0) {
355 $thisfile_asf_codeclistobject['codec_entries'] = array();
356 }
357 $offset += 4;
358 for ($CodecEntryCounter = 0; $CodecEntryCounter < $thisfile_asf_codeclistobject['codec_entries_count']; $CodecEntryCounter++) {
359 // shortcut
360 $thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter] = array();
361 $thisfile_asf_codeclistobject_codecentries_current = &$thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter];
362
363 $thisfile_asf_codeclistobject_codecentries_current['type_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
364 $offset += 2;
365 $thisfile_asf_codeclistobject_codecentries_current['type'] = self::codecListObjectTypeLookup($thisfile_asf_codeclistobject_codecentries_current['type_raw']);
366
367 $CodecNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
368 $offset += 2;
369 $thisfile_asf_codeclistobject_codecentries_current['name'] = substr($ASFHeaderData, $offset, $CodecNameLength);
370 $offset += $CodecNameLength;
371
372 $CodecDescriptionLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
373 $offset += 2;
374 $thisfile_asf_codeclistobject_codecentries_current['description'] = substr($ASFHeaderData, $offset, $CodecDescriptionLength);
375 $offset += $CodecDescriptionLength;
376
377 $CodecInformationLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
378 $offset += 2;
379 $thisfile_asf_codeclistobject_codecentries_current['information'] = substr($ASFHeaderData, $offset, $CodecInformationLength);
380 $offset += $CodecInformationLength;
381
382 if ($thisfile_asf_codeclistobject_codecentries_current['type_raw'] == 2) { // audio codec
383
384 if (strpos($thisfile_asf_codeclistobject_codecentries_current['description'], ',') === false) {
385 $this->warning('[asf][codec_list_object][codec_entries]['.$CodecEntryCounter.'][description] expected to contain comma-separated list of parameters: "'.$thisfile_asf_codeclistobject_codecentries_current['description'].'"');
386 } else {
387
388 list($AudioCodecBitrate, $AudioCodecFrequency, $AudioCodecChannels) = explode(',', $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']));
389 $thisfile_audio['codec'] = $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['name']);
390
391 if (!isset($thisfile_audio['bitrate']) && strstr($AudioCodecBitrate, 'kbps')) {
392 $thisfile_audio['bitrate'] = (int) trim(str_replace('kbps', '', $AudioCodecBitrate)) * 1000;
393 }
394 //if (!isset($thisfile_video['bitrate']) && isset($thisfile_audio['bitrate']) && isset($thisfile_asf['file_properties_object']['max_bitrate']) && ($thisfile_asf_codeclistobject['codec_entries_count'] > 1)) {
395 if (empty($thisfile_video['bitrate']) && !empty($thisfile_audio['bitrate']) && !empty($info['bitrate'])) {
396 //$thisfile_video['bitrate'] = $thisfile_asf['file_properties_object']['max_bitrate'] - $thisfile_audio['bitrate'];
397 $thisfile_video['bitrate'] = $info['bitrate'] - $thisfile_audio['bitrate'];
398 }
399
400 $AudioCodecFrequency = (int) trim(str_replace('kHz', '', $AudioCodecFrequency));
401 switch ($AudioCodecFrequency) {
402 case 8:
403 case 8000:
404 $thisfile_audio['sample_rate'] = 8000;
405 break;
406
407 case 11:
408 case 11025:
409 $thisfile_audio['sample_rate'] = 11025;
410 break;
411
412 case 12:
413 case 12000:
414 $thisfile_audio['sample_rate'] = 12000;
415 break;
416
417 case 16:
418 case 16000:
419 $thisfile_audio['sample_rate'] = 16000;
420 break;
421
422 case 22:
423 case 22050:
424 $thisfile_audio['sample_rate'] = 22050;
425 break;
426
427 case 24:
428 case 24000:
429 $thisfile_audio['sample_rate'] = 24000;
430 break;
431
432 case 32:
433 case 32000:
434 $thisfile_audio['sample_rate'] = 32000;
435 break;
436
437 case 44:
438 case 441000:
439 $thisfile_audio['sample_rate'] = 44100;
440 break;
441
442 case 48:
443 case 48000:
444 $thisfile_audio['sample_rate'] = 48000;
445 break;
446
447 default:
448 $this->warning('unknown frequency: "'.$AudioCodecFrequency.'" ('.$this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']).')');
449 break;
450 }
451
452 if (!isset($thisfile_audio['channels'])) {
453 if (strstr($AudioCodecChannels, 'stereo')) {
454 $thisfile_audio['channels'] = 2;
455 } elseif (strstr($AudioCodecChannels, 'mono')) {
456 $thisfile_audio['channels'] = 1;
457 }
458 }
459
460 }
461 }
462 }
463 break;
464
465 case GETID3_ASF_Script_Command_Object:
466 // Script Command Object: (optional, one only)
467 // Field Name Field Type Size (bits)
468 // Object ID GUID 128 // GUID for Script Command object - GETID3_ASF_Script_Command_Object
469 // Object Size QWORD 64 // size of Script Command object, including 44 bytes of Script Command Object header
470 // Reserved GUID 128 // hardcoded: 4B1ACBE3-100B-11D0-A39B-00A0C90348F6
471 // Commands Count WORD 16 // number of Commands structures in the Script Commands Objects
472 // Command Types Count WORD 16 // number of Command Types structures in the Script Commands Objects
473 // Command Types array of: variable //
474 // * Command Type Name Length WORD 16 // number of Unicode characters for Command Type Name
475 // * Command Type Name WCHAR variable // array of Unicode characters - name of a type of command
476 // Commands array of: variable //
477 // * Presentation Time DWORD 32 // presentation time of that command, in milliseconds
478 // * Type Index WORD 16 // type of this command, as a zero-based index into the array of Command Types of this object
479 // * Command Name Length WORD 16 // number of Unicode characters for Command Name
480 // * Command Name WCHAR variable // array of Unicode characters - name of this command
481
482 // shortcut
483 $thisfile_asf['script_command_object'] = array();
484 $thisfile_asf_scriptcommandobject = &$thisfile_asf['script_command_object'];
485
486 $thisfile_asf_scriptcommandobject['offset'] = $NextObjectOffset + $offset;
487 $thisfile_asf_scriptcommandobject['objectid'] = $NextObjectGUID;
488 $thisfile_asf_scriptcommandobject['objectid_guid'] = $NextObjectGUIDtext;
489 $thisfile_asf_scriptcommandobject['objectsize'] = $NextObjectSize;
490 $thisfile_asf_scriptcommandobject['reserved'] = substr($ASFHeaderData, $offset, 16);
491 $offset += 16;
492 $thisfile_asf_scriptcommandobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']);
493 if ($thisfile_asf_scriptcommandobject['reserved'] != $this->GUIDtoBytestring('4B1ACBE3-100B-11D0-A39B-00A0C90348F6')) {
494 $this->warning('script_command_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4B1ACBE3-100B-11D0-A39B-00A0C90348F6}');
495 //return false;
496 break;
497 }
498 $thisfile_asf_scriptcommandobject['commands_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
499 $offset += 2;
500 $thisfile_asf_scriptcommandobject['command_types_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
501 $offset += 2;
502 if ($thisfile_asf_scriptcommandobject['command_types_count'] > 0) {
503 $thisfile_asf_scriptcommandobject['command_types'] = array();
504 for ($CommandTypesCounter = 0; $CommandTypesCounter < (int) $thisfile_asf_scriptcommandobject['command_types_count']; $CommandTypesCounter++) {
505 $CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
506 $offset += 2;
507 $thisfile_asf_scriptcommandobject['command_types'][$CommandTypesCounter] = array();
508 $thisfile_asf_scriptcommandobject['command_types'][$CommandTypesCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
509 $offset += $CommandTypeNameLength;
510 }
511 }
512 for ($CommandsCounter = 0; $CommandsCounter < (int) $thisfile_asf_scriptcommandobject['commands_count']; $CommandsCounter++) {
513 $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['presentation_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
514 $offset += 4;
515 $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['type_index'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
516 $offset += 2;
517
518 $CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
519 $offset += 2;
520 $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
521 $offset += $CommandTypeNameLength;
522 }
523 break;
524
525 case GETID3_ASF_Marker_Object:
526 // Marker Object: (optional, one only)
527 // Field Name Field Type Size (bits)
528 // Object ID GUID 128 // GUID for Marker object - GETID3_ASF_Marker_Object
529 // Object Size QWORD 64 // size of Marker object, including 48 bytes of Marker Object header
530 // Reserved GUID 128 // hardcoded: 4CFEDB20-75F6-11CF-9C0F-00A0C90349CB
531 // Markers Count DWORD 32 // number of Marker structures in Marker Object
532 // Reserved WORD 16 // hardcoded: 0x0000
533 // Name Length WORD 16 // number of bytes in the Name field
534 // Name WCHAR variable // name of the Marker Object
535 // Markers array of: variable //
536 // * Offset QWORD 64 // byte offset into Data Object
537 // * Presentation Time QWORD 64 // in 100-nanosecond units
538 // * Entry Length WORD 16 // length in bytes of (Send Time + Flags + Marker Description Length + Marker Description + Padding)
539 // * Send Time DWORD 32 // in milliseconds
540 // * Flags DWORD 32 // hardcoded: 0x00000000
541 // * Marker Description Length DWORD 32 // number of bytes in Marker Description field
542 // * Marker Description WCHAR variable // array of Unicode characters - description of marker entry
543 // * Padding BYTESTREAM variable // optional padding bytes
544
545 // shortcut
546 $thisfile_asf['marker_object'] = array();
547 $thisfile_asf_markerobject = &$thisfile_asf['marker_object'];
548
549 $thisfile_asf_markerobject['offset'] = $NextObjectOffset + $offset;
550 $thisfile_asf_markerobject['objectid'] = $NextObjectGUID;
551 $thisfile_asf_markerobject['objectid_guid'] = $NextObjectGUIDtext;
552 $thisfile_asf_markerobject['objectsize'] = $NextObjectSize;
553 $thisfile_asf_markerobject['reserved'] = substr($ASFHeaderData, $offset, 16);
554 $offset += 16;
555 $thisfile_asf_markerobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_markerobject['reserved']);
556 if ($thisfile_asf_markerobject['reserved'] != $this->GUIDtoBytestring('4CFEDB20-75F6-11CF-9C0F-00A0C90349CB')) {
557 $this->warning('marker_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_markerobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4CFEDB20-75F6-11CF-9C0F-00A0C90349CB}');
558 break;
559 }
560 $thisfile_asf_markerobject['markers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
561 /** @var int|float|false $totalMakersCount */
562 $totalMakersCount = $thisfile_asf_markerobject['markers_count'];
563 $offset += 4;
564 $thisfile_asf_markerobject['reserved_2'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
565 $offset += 2;
566 if ($thisfile_asf_markerobject['reserved_2'] != 0) {
567 $this->warning('marker_object.reserved_2 ('.$thisfile_asf_markerobject['reserved_2'].') does not match expected value of "0"');
568 break;
569 }
570 $thisfile_asf_markerobject['name_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
571 $offset += 2;
572 $thisfile_asf_markerobject['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['name_length']);
573 $offset += $thisfile_asf_markerobject['name_length'];
574 for ($MarkersCounter = 0; $MarkersCounter < $totalMakersCount; $MarkersCounter++) {
575 $thisfile_asf_markerobject['markers'][$MarkersCounter] = array();
576 $thisfile_asf_markerobject['markers'][$MarkersCounter]['offset'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
577 $offset += 8;
578 $thisfile_asf_markerobject['markers'][$MarkersCounter]['presentation_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
579 $offset += 8;
580 $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
581 $offset += 2;
582 $thisfile_asf_markerobject['markers'][$MarkersCounter]['send_time'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
583 $offset += 4;
584 $thisfile_asf_markerobject['markers'][$MarkersCounter]['flags'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
585 $offset += 4;
586 $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
587 $offset += 4;
588 $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']);
589 $offset += $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
590 $PaddingLength = $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] - 4 - 4 - 4 - $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
591 if ($PaddingLength > 0) {
592 $thisfile_asf_markerobject['markers'][$MarkersCounter]['padding'] = substr($ASFHeaderData, $offset, $PaddingLength);
593 $offset += $PaddingLength;
594 }
595 }
596 break;
597
598 case GETID3_ASF_Bitrate_Mutual_Exclusion_Object:
599 // Bitrate Mutual Exclusion Object: (optional)
600 // Field Name Field Type Size (bits)
601 // Object ID GUID 128 // GUID for Bitrate Mutual Exclusion object - GETID3_ASF_Bitrate_Mutual_Exclusion_Object
602 // Object Size QWORD 64 // size of Bitrate Mutual Exclusion object, including 42 bytes of Bitrate Mutual Exclusion Object header
603 // Exlusion Type GUID 128 // nature of mutual exclusion relationship. one of: (GETID3_ASF_Mutex_Bitrate, GETID3_ASF_Mutex_Unknown)
604 // Stream Numbers Count WORD 16 // number of video streams
605 // Stream Numbers WORD variable // array of mutually exclusive video stream numbers. 1 <= valid <= 127
606
607 // shortcut
608 $thisfile_asf['bitrate_mutual_exclusion_object'] = array();
609 $thisfile_asf_bitratemutualexclusionobject = &$thisfile_asf['bitrate_mutual_exclusion_object'];
610
611 $thisfile_asf_bitratemutualexclusionobject['offset'] = $NextObjectOffset + $offset;
612 $thisfile_asf_bitratemutualexclusionobject['objectid'] = $NextObjectGUID;
613 $thisfile_asf_bitratemutualexclusionobject['objectid_guid'] = $NextObjectGUIDtext;
614 $thisfile_asf_bitratemutualexclusionobject['objectsize'] = $NextObjectSize;
615 $thisfile_asf_bitratemutualexclusionobject['reserved'] = substr($ASFHeaderData, $offset, 16);
616 $thisfile_asf_bitratemutualexclusionobject['reserved_guid'] = $this->BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']);
617 $offset += 16;
618 if (($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Bitrate) && ($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Unknown)) {
619 $this->warning('bitrate_mutual_exclusion_object.reserved GUID {'.$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).'}');
620 //return false;
621 break;
622 }
623 $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
624 $offset += 2;
625 for ($StreamNumberCounter = 0; $StreamNumberCounter < (int) $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count']; $StreamNumberCounter++) {
626 $thisfile_asf_bitratemutualexclusionobject['stream_numbers'][$StreamNumberCounter] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
627 $offset += 2;
628 }
629 break;
630
631 case GETID3_ASF_Error_Correction_Object:
632 // Error Correction Object: (optional, one only)
633 // Field Name Field Type Size (bits)
634 // Object ID GUID 128 // GUID for Error Correction object - GETID3_ASF_Error_Correction_Object
635 // Object Size QWORD 64 // size of Error Correction object, including 44 bytes of Error Correction Object header
636 // Error Correction Type GUID 128 // type of error correction. one of: (GETID3_ASF_No_Error_Correction, GETID3_ASF_Audio_Spread)
637 // Error Correction Data Length DWORD 32 // number of bytes in Error Correction Data field
638 // Error Correction Data BYTESTREAM variable // structure depends on value of Error Correction Type field
639
640 // shortcut
641 $thisfile_asf['error_correction_object'] = array();
642 $thisfile_asf_errorcorrectionobject = &$thisfile_asf['error_correction_object'];
643
644 $thisfile_asf_errorcorrectionobject['offset'] = $NextObjectOffset + $offset;
645 $thisfile_asf_errorcorrectionobject['objectid'] = $NextObjectGUID;
646 $thisfile_asf_errorcorrectionobject['objectid_guid'] = $NextObjectGUIDtext;
647 $thisfile_asf_errorcorrectionobject['objectsize'] = $NextObjectSize;
648 $thisfile_asf_errorcorrectionobject['error_correction_type'] = substr($ASFHeaderData, $offset, 16);
649 $offset += 16;
650 $thisfile_asf_errorcorrectionobject['error_correction_guid'] = $this->BytestringToGUID($thisfile_asf_errorcorrectionobject['error_correction_type']);
651 $thisfile_asf_errorcorrectionobject['error_correction_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
652 $offset += 4;
653 switch ($thisfile_asf_errorcorrectionobject['error_correction_type']) {
654 case GETID3_ASF_No_Error_Correction:
655 // should be no data, but just in case there is, skip to the end of the field
656 $offset += $thisfile_asf_errorcorrectionobject['error_correction_data_length'];
657 break;
658
659 case GETID3_ASF_Audio_Spread:
660 // Field Name Field Type Size (bits)
661 // Span BYTE 8 // number of packets over which audio will be spread.
662 // Virtual Packet Length WORD 16 // size of largest audio payload found in audio stream
663 // Virtual Chunk Length WORD 16 // size of largest audio payload found in audio stream
664 // Silence Data Length WORD 16 // number of bytes in Silence Data field
665 // Silence Data BYTESTREAM variable // hardcoded: 0x00 * (Silence Data Length) bytes
666
667 $thisfile_asf_errorcorrectionobject['span'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 1));
668 $offset += 1;
669 $thisfile_asf_errorcorrectionobject['virtual_packet_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
670 $offset += 2;
671 $thisfile_asf_errorcorrectionobject['virtual_chunk_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
672 $offset += 2;
673 $thisfile_asf_errorcorrectionobject['silence_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
674 $offset += 2;
675 $thisfile_asf_errorcorrectionobject['silence_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_errorcorrectionobject['silence_data_length']);
676 $offset += $thisfile_asf_errorcorrectionobject['silence_data_length'];
677 break;
678
679 default:
680 $this->warning('error_correction_object.error_correction_type GUID {'.$this->BytestringToGUID($thisfile_asf_errorcorrectionobject['error_correction_type']).'} does not match expected "GETID3_ASF_No_Error_Correction" GUID {'.$this->BytestringToGUID(GETID3_ASF_No_Error_Correction).'} or "GETID3_ASF_Audio_Spread" GUID {'.$this->BytestringToGUID(GETID3_ASF_Audio_Spread).'}');
681 //return false;
682 break;
683 }
684
685 break;
686
687 case GETID3_ASF_Content_Description_Object:
688 // Content Description Object: (optional, one only)
689 // Field Name Field Type Size (bits)
690 // Object ID GUID 128 // GUID for Content Description object - GETID3_ASF_Content_Description_Object
691 // Object Size QWORD 64 // size of Content Description object, including 34 bytes of Content Description Object header
692 // Title Length WORD 16 // number of bytes in Title field
693 // Author Length WORD 16 // number of bytes in Author field
694 // Copyright Length WORD 16 // number of bytes in Copyright field
695 // Description Length WORD 16 // number of bytes in Description field
696 // Rating Length WORD 16 // number of bytes in Rating field
697 // Title WCHAR 16 // array of Unicode characters - Title
698 // Author WCHAR 16 // array of Unicode characters - Author
699 // Copyright WCHAR 16 // array of Unicode characters - Copyright
700 // Description WCHAR 16 // array of Unicode characters - Description
701 // Rating WCHAR 16 // array of Unicode characters - Rating
702
703 // shortcut
704 $thisfile_asf['content_description_object'] = array();
705 $thisfile_asf_contentdescriptionobject = &$thisfile_asf['content_description_object'];
706
707 $thisfile_asf_contentdescriptionobject['offset'] = $NextObjectOffset + $offset;
708 $thisfile_asf_contentdescriptionobject['objectid'] = $NextObjectGUID;
709 $thisfile_asf_contentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext;
710 $thisfile_asf_contentdescriptionobject['objectsize'] = $NextObjectSize;
711 $thisfile_asf_contentdescriptionobject['title_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
712 $offset += 2;
713 $thisfile_asf_contentdescriptionobject['author_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
714 $offset += 2;
715 $thisfile_asf_contentdescriptionobject['copyright_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
716 $offset += 2;
717 $thisfile_asf_contentdescriptionobject['description_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
718 $offset += 2;
719 $thisfile_asf_contentdescriptionobject['rating_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
720 $offset += 2;
721 $thisfile_asf_contentdescriptionobject['title'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['title_length']);
722 $offset += $thisfile_asf_contentdescriptionobject['title_length'];
723 $thisfile_asf_contentdescriptionobject['author'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['author_length']);
724 $offset += $thisfile_asf_contentdescriptionobject['author_length'];
725 $thisfile_asf_contentdescriptionobject['copyright'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['copyright_length']);
726 $offset += $thisfile_asf_contentdescriptionobject['copyright_length'];
727 $thisfile_asf_contentdescriptionobject['description'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['description_length']);
728 $offset += $thisfile_asf_contentdescriptionobject['description_length'];
729 $thisfile_asf_contentdescriptionobject['rating'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['rating_length']);
730 $offset += $thisfile_asf_contentdescriptionobject['rating_length'];
731
732 $ASFcommentKeysToCopy = array('title'=>'title', 'author'=>'artist', 'copyright'=>'copyright', 'description'=>'comment', 'rating'=>'rating');
733 foreach ($ASFcommentKeysToCopy as $keytocopyfrom => $keytocopyto) {
734 if (!empty($thisfile_asf_contentdescriptionobject[$keytocopyfrom])) {
735 $thisfile_asf_comments[$keytocopyto][] = $this->TrimTerm($thisfile_asf_contentdescriptionobject[$keytocopyfrom]);
736 }
737 }
738 break;
739
740 case GETID3_ASF_Extended_Content_Description_Object:
741 // Extended Content Description Object: (optional, one only)
742 // Field Name Field Type Size (bits)
743 // Object ID GUID 128 // GUID for Extended Content Description object - GETID3_ASF_Extended_Content_Description_Object
744 // Object Size QWORD 64 // size of ExtendedContent Description object, including 26 bytes of Extended Content Description Object header
745 // Content Descriptors Count WORD 16 // number of entries in Content Descriptors list
746 // Content Descriptors array of: variable //
747 // * Descriptor Name Length WORD 16 // size in bytes of Descriptor Name field
748 // * Descriptor Name WCHAR variable // array of Unicode characters - Descriptor Name
749 // * Descriptor Value Data Type WORD 16 // Lookup array:
750 // 0x0000 = Unicode String (variable length)
751 // 0x0001 = BYTE array (variable length)
752 // 0x0002 = BOOL (DWORD, 32 bits)
753 // 0x0003 = DWORD (DWORD, 32 bits)
754 // 0x0004 = QWORD (QWORD, 64 bits)
755 // 0x0005 = WORD (WORD, 16 bits)
756 // * Descriptor Value Length WORD 16 // number of bytes stored in Descriptor Value field
757 // * Descriptor Value variable variable // value for Content Descriptor
758
759 // shortcut
760 $thisfile_asf['extended_content_description_object'] = array();
761 $thisfile_asf_extendedcontentdescriptionobject = &$thisfile_asf['extended_content_description_object'];
762
763 $thisfile_asf_extendedcontentdescriptionobject['offset'] = $NextObjectOffset + $offset;
764 $thisfile_asf_extendedcontentdescriptionobject['objectid'] = $NextObjectGUID;
765 $thisfile_asf_extendedcontentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext;
766 $thisfile_asf_extendedcontentdescriptionobject['objectsize'] = $NextObjectSize;
767 $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
768 $offset += 2;
769 for ($ExtendedContentDescriptorsCounter = 0; $ExtendedContentDescriptorsCounter < (int) $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count']; $ExtendedContentDescriptorsCounter++) {
770 // shortcut
771 $thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter] = array();
772 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current = &$thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter];
773
774 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['base_offset'] = $offset + 30;
775 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
776 $offset += 2;
777 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']);
778 $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'];
779 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
780 $offset += 2;
781 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
782 $offset += 2;
783 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length']);
784 $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'];
785 switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
786 case 0x0000: // Unicode string
787 break;
788
789 case 0x0001: // BYTE array
790 // do nothing
791 break;
792
793 case 0x0002: // BOOL
794 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = (bool) getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
795 break;
796
797 case 0x0003: // DWORD
798 case 0x0004: // QWORD
799 case 0x0005: // WORD
800 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
801 break;
802
803 default:
804 $this->warning('extended_content_description.content_descriptors.'.$ExtendedContentDescriptorsCounter.'.value_type is invalid ('.$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'].')');
805 //return false;
806 break;
807 }
808 switch ($this->TrimConvert(strtolower($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']))) {
809
810 case 'wm/albumartist':
811 case 'artist':
812 // Note: not 'artist', that comes from 'author' tag
813 $thisfile_asf_comments['albumartist'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
814 break;
815
816 case 'wm/albumtitle':
817 case 'album':
818 $thisfile_asf_comments['album'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
819 break;
820
821 case 'wm/genre':
822 case 'genre':
823 $thisfile_asf_comments['genre'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
824 break;
825
826 case 'wm/partofset':
827 $thisfile_asf_comments['partofset'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
828 break;
829
830 case 'wm/tracknumber':
831 case 'tracknumber':
832 // be careful casting to int: casting unicode strings to int gives unexpected results (stops parsing at first non-numeric character)
833 $thisfile_asf_comments['track_number'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
834 foreach ($thisfile_asf_comments['track_number'] as $key => $value) {
835 if (preg_match('/^[0-9\x00]+$/', $value)) {
836 $thisfile_asf_comments['track_number'][$key] = intval(str_replace("\x00", '', $value));
837 }
838 }
839 break;
840
841 case 'wm/track':
842 if (empty($thisfile_asf_comments['track_number'])) {
843 $thisfile_asf_comments['track_number'] = array(1 + (int) $this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
844 }
845 break;
846
847 case 'wm/year':
848 case 'year':
849 case 'date':
850 $thisfile_asf_comments['year'] = array( $this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
851 break;
852
853 case 'wm/lyrics':
854 case 'lyrics':
855 $thisfile_asf_comments['lyrics'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
856 break;
857
858 case 'isvbr':
859 if ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']) {
860 $thisfile_audio['bitrate_mode'] = 'vbr';
861 $thisfile_video['bitrate_mode'] = 'vbr';
862 }
863 break;
864
865 case 'id3':
866 $this->getid3->include_module('tag.id3v2');
867
868 $getid3_id3v2 = new getid3_id3v2($this->getid3);
869 $getid3_id3v2->AnalyzeString($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
870 unset($getid3_id3v2);
871
872 if ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'] > 1024) {
873 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = '<value too large to display>';
874 }
875 break;
876
877 case 'wm/encodingtime':
878 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
879 $thisfile_asf_comments['encoding_time_unix'] = array($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix']);
880 break;
881
882 case 'wm/picture':
883 $WMpicture = $this->ASF_WMpicture($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
884 foreach ($WMpicture as $key => $value) {
885 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current[$key] = $value;
886 }
887 unset($WMpicture);
888/*
889 $wm_picture_offset = 0;
890 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id'] = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 1));
891 $wm_picture_offset += 1;
892 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type'] = self::WMpictureTypeLookup($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id']);
893 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_size'] = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 4));
894 $wm_picture_offset += 4;
895
896 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = '';
897 do {
898 $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
899 $wm_picture_offset += 2;
900 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] .= $next_byte_pair;
901 } while ($next_byte_pair !== "\x00\x00");
902
903 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] = '';
904 do {
905 $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
906 $wm_picture_offset += 2;
907 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] .= $next_byte_pair;
908 } while ($next_byte_pair !== "\x00\x00");
909
910 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['dataoffset'] = $wm_picture_offset;
911 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'] = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset);
912 unset($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
913
914 $imageinfo = array();
915 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = '';
916 $imagechunkcheck = getid3_lib::GetDataImageSize($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], $imageinfo);
917 unset($imageinfo);
918 if (!empty($imagechunkcheck)) {
919 $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]);
920 }
921 if (!isset($thisfile_asf_comments['picture'])) {
922 $thisfile_asf_comments['picture'] = array();
923 }
924 $thisfile_asf_comments['picture'][] = array('data'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], 'image_mime'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime']);
925*/
926 break;
927
928 default:
929 switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
930 case 0: // Unicode string
931 if (substr($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']), 0, 3) == 'WM/') {
932 $thisfile_asf_comments[str_replace('wm/', '', strtolower($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'])))] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
933 }
934 break;
935
936 case 1:
937 break;
938 }
939 break;
940 }
941
942 }
943 break;
944
945 case GETID3_ASF_Stream_Bitrate_Properties_Object:
946 // Stream Bitrate Properties Object: (optional, one only)
947 // Field Name Field Type Size (bits)
948 // Object ID GUID 128 // GUID for Stream Bitrate Properties object - GETID3_ASF_Stream_Bitrate_Properties_Object
949 // Object Size QWORD 64 // size of Extended Content Description object, including 26 bytes of Stream Bitrate Properties Object header
950 // Bitrate Records Count WORD 16 // number of records in Bitrate Records
951 // Bitrate Records array of: variable //
952 // * Flags WORD 16 //
953 // * * Stream Number bits 7 (0x007F) // number of this stream
954 // * * Reserved bits 9 (0xFF80) // hardcoded: 0
955 // * Average Bitrate DWORD 32 // in bits per second
956
957 // shortcut
958 $thisfile_asf['stream_bitrate_properties_object'] = array();
959 $thisfile_asf_streambitratepropertiesobject = &$thisfile_asf['stream_bitrate_properties_object'];
960
961 $thisfile_asf_streambitratepropertiesobject['offset'] = $NextObjectOffset + $offset;
962 $thisfile_asf_streambitratepropertiesobject['objectid'] = $NextObjectGUID;
963 $thisfile_asf_streambitratepropertiesobject['objectid_guid'] = $NextObjectGUIDtext;
964 $thisfile_asf_streambitratepropertiesobject['objectsize'] = $NextObjectSize;
965 $thisfile_asf_streambitratepropertiesobject['bitrate_records_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
966 $offset += 2;
967 for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < (int) $thisfile_asf_streambitratepropertiesobject['bitrate_records_count']; $BitrateRecordsCounter++) {
968 $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter] = array();
969 $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
970 $offset += 2;
971 $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags']['stream_number'] = $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] & 0x007F;
972 $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
973 $offset += 4;
974 }
975 break;
976
977 case GETID3_ASF_Padding_Object:
978 // Padding Object: (optional)
979 // Field Name Field Type Size (bits)
980 // Object ID GUID 128 // GUID for Padding object - GETID3_ASF_Padding_Object
981 // Object Size QWORD 64 // size of Padding object, including 24 bytes of ASF Padding Object header
982 // Padding Data BYTESTREAM variable // ignore
983
984 // shortcut
985 $thisfile_asf['padding_object'] = array();
986 $thisfile_asf_paddingobject = &$thisfile_asf['padding_object'];
987
988 $thisfile_asf_paddingobject['offset'] = $NextObjectOffset + $offset;
989 $thisfile_asf_paddingobject['objectid'] = $NextObjectGUID;
990 $thisfile_asf_paddingobject['objectid_guid'] = $NextObjectGUIDtext;
991 $thisfile_asf_paddingobject['objectsize'] = $NextObjectSize;
992 $thisfile_asf_paddingobject['padding_length'] = $thisfile_asf_paddingobject['objectsize'] - 16 - 8;
993 $thisfile_asf_paddingobject['padding'] = substr($ASFHeaderData, $offset, $thisfile_asf_paddingobject['padding_length']);
994 $offset += ($NextObjectSize - 16 - 8);
995 break;
996
997 case GETID3_ASF_Extended_Content_Encryption_Object:
998 case GETID3_ASF_Content_Encryption_Object:
999 // WMA DRM - just ignore
1000 $offset += ($NextObjectSize - 16 - 8);
1001 break;
1002
1003 default:
1004 // Implementations shall ignore any standard or non-standard object that they do not know how to handle.
1005 if ($this->GUIDname($NextObjectGUIDtext)) {
1006 $this->warning('unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8));
1007 } else {
1008 $this->warning('unknown GUID {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8));
1009 }
1010 $offset += ($NextObjectSize - 16 - 8);
1011 break;
1012 }
1013 }
1014 if (isset($thisfile_asf_streambitratepropertiesobject['bitrate_records_count'])) {
1015 $ASFbitrateAudio = 0;
1016 $ASFbitrateVideo = 0;
1017 for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < (int) $thisfile_asf_streambitratepropertiesobject['bitrate_records_count']; $BitrateRecordsCounter++) {
1018 if (isset($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter])) {
1019 switch ($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter]['type_raw']) {
1020 case 1:
1021 $ASFbitrateVideo += $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
1022 break;
1023
1024 case 2:
1025 $ASFbitrateAudio += $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
1026 break;
1027
1028 default:
1029 // do nothing
1030 break;
1031 }
1032 }
1033 }
1034 if ($ASFbitrateAudio > 0) {
1035 $thisfile_audio['bitrate'] = $ASFbitrateAudio;
1036 }
1037 if ($ASFbitrateVideo > 0) {
1038 $thisfile_video['bitrate'] = $ASFbitrateVideo;
1039 }
1040 }
1041 if (isset($thisfile_asf['stream_properties_object'])) {
1042
1043 $thisfile_audio['bitrate'] = 0;
1044 $thisfile_video['bitrate'] = 0;
1045
1046 foreach ($thisfile_asf['stream_properties_object'] as $streamnumber => $streamdata) {
1047
1048 switch ($streamdata['stream_type']) {
1049 case GETID3_ASF_Audio_Media:
1050 // Field Name Field Type Size (bits)
1051 // Codec ID / Format Tag WORD 16 // unique ID of audio codec - defined as wFormatTag field of WAVEFORMATEX structure
1052 // Number of Channels WORD 16 // number of channels of audio - defined as nChannels field of WAVEFORMATEX structure
1053 // Samples Per Second DWORD 32 // in Hertz - defined as nSamplesPerSec field of WAVEFORMATEX structure
1054 // Average number of Bytes/sec DWORD 32 // bytes/sec of audio stream - defined as nAvgBytesPerSec field of WAVEFORMATEX structure
1055 // Block Alignment WORD 16 // block size in bytes of audio codec - defined as nBlockAlign field of WAVEFORMATEX structure
1056 // 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
1057 // Codec Specific Data Size WORD 16 // size in bytes of Codec Specific Data buffer - defined as cbSize field of WAVEFORMATEX structure
1058 // Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes
1059
1060 // shortcut
1061 $thisfile_asf['audio_media'][$streamnumber] = array();
1062 $thisfile_asf_audiomedia_currentstream = &$thisfile_asf['audio_media'][$streamnumber];
1063
1064 $audiomediaoffset = 0;
1065
1066 $thisfile_asf_audiomedia_currentstream = getid3_riff::parseWAVEFORMATex(substr($streamdata['type_specific_data'], $audiomediaoffset, 16));
1067 $audiomediaoffset += 16;
1068
1069 $thisfile_audio['lossless'] = false;
1070 switch ($thisfile_asf_audiomedia_currentstream['raw']['wFormatTag']) {
1071 case 0x0001: // PCM
1072 case 0x0163: // WMA9 Lossless
1073 $thisfile_audio['lossless'] = true;
1074 break;
1075 }
1076
1077 if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) { // @phpstan-ignore-line
1078 foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) { // @phpstan-ignore-line
1079 if (isset($dataarray['flags']['stream_number']) && ($dataarray['flags']['stream_number'] == $streamnumber)) {
1080 $thisfile_asf_audiomedia_currentstream['bitrate'] = $dataarray['bitrate'];
1081 $thisfile_audio['bitrate'] += $dataarray['bitrate'];
1082 break;
1083 }
1084 }
1085 } else {
1086 if (!empty($thisfile_asf_audiomedia_currentstream['bytes_sec'])) {
1087 $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bytes_sec'] * 8;
1088 } elseif (!empty($thisfile_asf_audiomedia_currentstream['bitrate'])) {
1089 $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bitrate'];
1090 }
1091 }
1092 $thisfile_audio['streams'][$streamnumber] = $thisfile_asf_audiomedia_currentstream;
1093 $thisfile_audio['streams'][$streamnumber]['wformattag'] = $thisfile_asf_audiomedia_currentstream['raw']['wFormatTag'];
1094 $thisfile_audio['streams'][$streamnumber]['lossless'] = $thisfile_audio['lossless'];
1095 $thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate'];
1096 $thisfile_audio['streams'][$streamnumber]['dataformat'] = 'wma';
1097 unset($thisfile_audio['streams'][$streamnumber]['raw']);
1098
1099 $thisfile_asf_audiomedia_currentstream['codec_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $audiomediaoffset, 2));
1100 $audiomediaoffset += 2;
1101 $thisfile_asf_audiomedia_currentstream['codec_data'] = substr($streamdata['type_specific_data'], $audiomediaoffset, $thisfile_asf_audiomedia_currentstream['codec_data_size']);
1102 $audiomediaoffset += $thisfile_asf_audiomedia_currentstream['codec_data_size'];
1103
1104 break;
1105
1106 case GETID3_ASF_Video_Media:
1107 // Field Name Field Type Size (bits)
1108 // Encoded Image Width DWORD 32 // width of image in pixels
1109 // Encoded Image Height DWORD 32 // height of image in pixels
1110 // Reserved Flags BYTE 8 // hardcoded: 0x02
1111 // Format Data Size WORD 16 // size of Format Data field in bytes
1112 // Format Data array of: variable //
1113 // * Format Data Size DWORD 32 // number of bytes in Format Data field, in bytes - defined as biSize field of BITMAPINFOHEADER structure
1114 // * Image Width LONG 32 // width of encoded image in pixels - defined as biWidth field of BITMAPINFOHEADER structure
1115 // * Image Height LONG 32 // height of encoded image in pixels - defined as biHeight field of BITMAPINFOHEADER structure
1116 // * Reserved WORD 16 // hardcoded: 0x0001 - defined as biPlanes field of BITMAPINFOHEADER structure
1117 // * Bits Per Pixel Count WORD 16 // bits per pixel - defined as biBitCount field of BITMAPINFOHEADER structure
1118 // * Compression ID FOURCC 32 // fourcc of video codec - defined as biCompression field of BITMAPINFOHEADER structure
1119 // * Image Size DWORD 32 // image size in bytes - defined as biSizeImage field of BITMAPINFOHEADER structure
1120 // * Horizontal Pixels / Meter DWORD 32 // horizontal resolution of target device in pixels per meter - defined as biXPelsPerMeter field of BITMAPINFOHEADER structure
1121 // * Vertical Pixels / Meter DWORD 32 // vertical resolution of target device in pixels per meter - defined as biYPelsPerMeter field of BITMAPINFOHEADER structure
1122 // * Colors Used Count DWORD 32 // number of color indexes in the color table that are actually used - defined as biClrUsed field of BITMAPINFOHEADER structure
1123 // * 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
1124 // * Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes
1125
1126 // shortcut
1127 $thisfile_asf['video_media'][$streamnumber] = array();
1128 $thisfile_asf_videomedia_currentstream = &$thisfile_asf['video_media'][$streamnumber];
1129
1130 $videomediaoffset = 0;
1131 $thisfile_asf_videomedia_currentstream['image_width'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1132 $videomediaoffset += 4;
1133 $thisfile_asf_videomedia_currentstream['image_height'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1134 $videomediaoffset += 4;
1135 $thisfile_asf_videomedia_currentstream['flags'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 1));
1136 $videomediaoffset += 1;
1137 $thisfile_asf_videomedia_currentstream['format_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1138 $videomediaoffset += 2;
1139 $thisfile_asf_videomedia_currentstream['format_data']['format_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1140 $videomediaoffset += 4;
1141 $thisfile_asf_videomedia_currentstream['format_data']['image_width'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1142 $videomediaoffset += 4;
1143 $thisfile_asf_videomedia_currentstream['format_data']['image_height'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1144 $videomediaoffset += 4;
1145 $thisfile_asf_videomedia_currentstream['format_data']['reserved'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1146 $videomediaoffset += 2;
1147 $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
1148 $videomediaoffset += 2;
1149 $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'] = substr($streamdata['type_specific_data'], $videomediaoffset, 4);
1150 $videomediaoffset += 4;
1151 $thisfile_asf_videomedia_currentstream['format_data']['image_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1152 $videomediaoffset += 4;
1153 $thisfile_asf_videomedia_currentstream['format_data']['horizontal_pels'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1154 $videomediaoffset += 4;
1155 $thisfile_asf_videomedia_currentstream['format_data']['vertical_pels'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1156 $videomediaoffset += 4;
1157 $thisfile_asf_videomedia_currentstream['format_data']['colors_used'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1158 $videomediaoffset += 4;
1159 $thisfile_asf_videomedia_currentstream['format_data']['colors_important'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
1160 $videomediaoffset += 4;
1161 $thisfile_asf_videomedia_currentstream['format_data']['codec_data'] = substr($streamdata['type_specific_data'], $videomediaoffset);
1162
1163 if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) { // @phpstan-ignore-line
1164 foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) { // @phpstan-ignore-line
1165 if (isset($dataarray['flags']['stream_number']) && ($dataarray['flags']['stream_number'] == $streamnumber)) {
1166 $thisfile_asf_videomedia_currentstream['bitrate'] = $dataarray['bitrate'];
1167 $thisfile_video['streams'][$streamnumber]['bitrate'] = $dataarray['bitrate'];
1168 $thisfile_video['bitrate'] += $dataarray['bitrate'];
1169 break;
1170 }
1171 }
1172 }
1173
1174 $thisfile_asf_videomedia_currentstream['format_data']['codec'] = getid3_riff::fourccLookup($thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']);
1175
1176 $thisfile_video['streams'][$streamnumber]['fourcc'] = $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'];
1177 $thisfile_video['streams'][$streamnumber]['codec'] = $thisfile_asf_videomedia_currentstream['format_data']['codec'];
1178 $thisfile_video['streams'][$streamnumber]['resolution_x'] = $thisfile_asf_videomedia_currentstream['image_width'];
1179 $thisfile_video['streams'][$streamnumber]['resolution_y'] = $thisfile_asf_videomedia_currentstream['image_height'];
1180 $thisfile_video['streams'][$streamnumber]['bits_per_sample'] = $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'];
1181 break;
1182
1183 default:
1184 break;
1185 }
1186 }
1187 }
1188
1189 while ($this->ftell() < $info['avdataend']) {
1190 $NextObjectDataHeader = $this->fread(24);
1191 $offset = 0;
1192 $NextObjectGUID = substr($NextObjectDataHeader, 0, 16);
1193 $offset += 16;
1194 $NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
1195 $NextObjectSize = getid3_lib::LittleEndian2Int(substr($NextObjectDataHeader, $offset, 8));
1196 $offset += 8;
1197
1198 switch ($NextObjectGUID) {
1199 case GETID3_ASF_Data_Object:
1200 // Data Object: (mandatory, one only)
1201 // Field Name Field Type Size (bits)
1202 // Object ID GUID 128 // GUID for Data object - GETID3_ASF_Data_Object
1203 // Object Size QWORD 64 // size of Data object, including 50 bytes of Data Object header. may be 0 if FilePropertiesObject.BroadcastFlag == 1
1204 // File ID GUID 128 // unique identifier. identical to File ID field in Header Object
1205 // Total Data Packets QWORD 64 // number of Data Packet entries in Data Object. invalid if FilePropertiesObject.BroadcastFlag == 1
1206 // Reserved WORD 16 // hardcoded: 0x0101
1207
1208 // shortcut
1209 $thisfile_asf['data_object'] = array();
1210 $thisfile_asf_dataobject = &$thisfile_asf['data_object'];
1211
1212 $DataObjectData = $NextObjectDataHeader.$this->fread(50 - 24);
1213 $offset = 24;
1214
1215 $thisfile_asf_dataobject['objectid'] = $NextObjectGUID;
1216 $thisfile_asf_dataobject['objectid_guid'] = $NextObjectGUIDtext;
1217 $thisfile_asf_dataobject['objectsize'] = $NextObjectSize;
1218
1219 $thisfile_asf_dataobject['fileid'] = substr($DataObjectData, $offset, 16);
1220 $offset += 16;
1221 $thisfile_asf_dataobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_dataobject['fileid']);
1222 $thisfile_asf_dataobject['total_data_packets'] = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 8));
1223 $offset += 8;
1224 $thisfile_asf_dataobject['reserved'] = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 2));
1225 $offset += 2;
1226 if ($thisfile_asf_dataobject['reserved'] != 0x0101) {
1227 $this->warning('data_object.reserved (0x'.sprintf('%04X', $thisfile_asf_dataobject['reserved']).') does not match expected value of "0x0101"');
1228 //return false;
1229 break;
1230 }
1231
1232 // Data Packets array of: variable //
1233 // * Error Correction Flags BYTE 8 //
1234 // * * Error Correction Data Length bits 4 // if Error Correction Length Type == 00, size of Error Correction Data in bytes, else hardcoded: 0000
1235 // * * Opaque Data Present bits 1 //
1236 // * * Error Correction Length Type bits 2 // number of bits for size of the error correction data. hardcoded: 00
1237 // * * Error Correction Present bits 1 // If set, use Opaque Data Packet structure, else use Payload structure
1238 // * Error Correction Data
1239
1240 $info['avdataoffset'] = $this->ftell();
1241 $this->fseek(($thisfile_asf_dataobject['objectsize'] - 50), SEEK_CUR); // skip actual audio/video data
1242 $info['avdataend'] = $this->ftell();
1243 break;
1244
1245 case GETID3_ASF_Simple_Index_Object:
1246 // Simple Index Object: (optional, recommended, one per video stream)
1247 // Field Name Field Type Size (bits)
1248 // Object ID GUID 128 // GUID for Simple Index object - GETID3_ASF_Data_Object
1249 // Object Size QWORD 64 // size of Simple Index object, including 56 bytes of Simple Index Object header
1250 // File ID GUID 128 // unique identifier. may be zero or identical to File ID field in Data Object and Header Object
1251 // Index Entry Time Interval QWORD 64 // interval between index entries in 100-nanosecond units
1252 // Maximum Packet Count DWORD 32 // maximum packet count for all index entries
1253 // Index Entries Count DWORD 32 // number of Index Entries structures
1254 // Index Entries array of: variable //
1255 // * Packet Number DWORD 32 // number of the Data Packet associated with this index entry
1256 // * Packet Count WORD 16 // number of Data Packets to sent at this index entry
1257
1258 // shortcut
1259 $thisfile_asf['simple_index_object'] = array();
1260 $thisfile_asf_simpleindexobject = &$thisfile_asf['simple_index_object'];
1261
1262 $SimpleIndexObjectData = $NextObjectDataHeader.$this->fread(56 - 24);
1263 $offset = 24;
1264
1265 $thisfile_asf_simpleindexobject['objectid'] = $NextObjectGUID;
1266 $thisfile_asf_simpleindexobject['objectid_guid'] = $NextObjectGUIDtext;
1267 $thisfile_asf_simpleindexobject['objectsize'] = $NextObjectSize;
1268
1269 $thisfile_asf_simpleindexobject['fileid'] = substr($SimpleIndexObjectData, $offset, 16);
1270 $offset += 16;
1271 $thisfile_asf_simpleindexobject['fileid_guid'] = $this->BytestringToGUID($thisfile_asf_simpleindexobject['fileid']);
1272 $thisfile_asf_simpleindexobject['index_entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 8));
1273 $offset += 8;
1274 $thisfile_asf_simpleindexobject['maximum_packet_count'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
1275 $offset += 4;
1276 $thisfile_asf_simpleindexobject['index_entries_count'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
1277 /** @var int|float|false $totalIndexEntriesCount */
1278 $totalIndexEntriesCount = $thisfile_asf_simpleindexobject['index_entries_count'];
1279 $offset += 4;
1280
1281 $IndexEntriesData = $SimpleIndexObjectData.$this->fread(6 * $totalIndexEntriesCount);
1282 for ($IndexEntriesCounter = 0; $IndexEntriesCounter < $totalIndexEntriesCount; $IndexEntriesCounter++) {
1283 $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter] = array();
1284 $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_number'] = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
1285 $offset += 4;
1286 $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_count'] = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
1287 $offset += 2;
1288 }
1289
1290 break;
1291
1292 case GETID3_ASF_Index_Object:
1293 // 6.2 ASF top-level Index Object (optional but recommended when appropriate, 0 or 1)
1294 // Field Name Field Type Size (bits)
1295 // Object ID GUID 128 // GUID for the Index Object - GETID3_ASF_Index_Object
1296 // Object Size QWORD 64 // Specifies the size, in bytes, of the Index Object, including at least 34 bytes of Index Object header
1297 // Index Entry Time Interval DWORD 32 // Specifies the time interval between each index entry in ms.
1298 // Index Specifiers Count WORD 16 // Specifies the number of Index Specifiers structures in this Index Object.
1299 // Index Blocks Count DWORD 32 // Specifies the number of Index Blocks structures in this Index Object.
1300
1301 // Index Entry Time Interval DWORD 32 // Specifies the time interval between index entries in milliseconds. This value cannot be 0.
1302 // Index Specifiers Count WORD 16 // Specifies the number of entries in the Index Specifiers list. Valid values are 1 and greater.
1303 // Index Specifiers array of: varies //
1304 // * Stream Number WORD 16 // Specifies the stream number that the Index Specifiers refer to. Valid values are between 1 and 127.
1305 // * Index Type WORD 16 // Specifies Index Type values as follows:
1306 // 1 = Nearest Past Data Packet - indexes point to the data packet whose presentation time is closest to the index entry time.
1307 // 2 = Nearest Past Media Object - indexes point to the closest data packet containing an entire object or first fragment of an object.
1308 // 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.
1309 // Nearest Past Cleanpoint is the most common type of index.
1310 // Index Entry Count DWORD 32 // Specifies the number of Index Entries in the block.
1311 // * 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.
1312 // * Index Entries array of: varies //
1313 // * * Offsets DWORD varies // An offset value of 0xffffffff indicates an invalid offset value
1314
1315 // shortcut
1316 $thisfile_asf['asf_index_object'] = array();
1317 $thisfile_asf_asfindexobject = &$thisfile_asf['asf_index_object'];
1318
1319 $ASFIndexObjectData = $NextObjectDataHeader.$this->fread(34 - 24);
1320 $offset = 24;
1321
1322 $thisfile_asf_asfindexobject['objectid'] = $NextObjectGUID;
1323 $thisfile_asf_asfindexobject['objectid_guid'] = $NextObjectGUIDtext;
1324 $thisfile_asf_asfindexobject['objectsize'] = $NextObjectSize;
1325
1326 $thisfile_asf_asfindexobject['entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1327 $offset += 4;
1328 $thisfile_asf_asfindexobject['index_specifiers_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1329 $offset += 2;
1330 $thisfile_asf_asfindexobject['index_blocks_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1331 $offset += 4;
1332
1333 $ASFIndexObjectData .= $this->fread(4 * $thisfile_asf_asfindexobject['index_specifiers_count']);
1334 for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < (int) $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1335 $IndexSpecifierStreamNumber = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1336 $offset += 2;
1337 $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter] = array();
1338 $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['stream_number'] = $IndexSpecifierStreamNumber;
1339 $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
1340 $offset += 2;
1341 $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type_text'] = $this->ASFIndexObjectIndexTypeLookup($thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type']);
1342 }
1343
1344 $ASFIndexObjectData .= $this->fread(4);
1345 $thisfile_asf_asfindexobject['index_entry_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1346 /** @var int|float|false $totalIndexEntryCount */
1347 $totalIndexEntryCount = $thisfile_asf_asfindexobject['index_entry_count'];
1348 $offset += 4;
1349
1350 $ASFIndexObjectData .= $this->fread(8 * $thisfile_asf_asfindexobject['index_specifiers_count']);
1351 for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < (int) $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1352 $thisfile_asf_asfindexobject['block_positions'][$IndexSpecifiersCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 8));
1353 $offset += 8;
1354 }
1355
1356 $ASFIndexObjectData .= $this->fread(4 * $thisfile_asf_asfindexobject['index_specifiers_count'] * $thisfile_asf_asfindexobject['index_entry_count']);
1357 for ($IndexEntryCounter = 0; $IndexEntryCounter < $totalIndexEntryCount; $IndexEntryCounter++) {
1358 for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < (int) $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
1359 $thisfile_asf_asfindexobject['offsets'][$IndexSpecifiersCounter][$IndexEntryCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
1360 $offset += 4;
1361 }
1362 }
1363 break;
1364
1365
1366 default:
1367 // Implementations shall ignore any standard or non-standard object that they do not know how to handle.
1368 if ($this->GUIDname($NextObjectGUIDtext)) {
1369 $this->warning('unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF body at offset '.($offset - 16 - 8));
1370 } else {
1371 $this->warning('unknown GUID {'.$NextObjectGUIDtext.'} in ASF body at offset '.($this->ftell() - 16 - 8));
1372 }
1373 $this->fseek(($NextObjectSize - 16 - 8), SEEK_CUR);
1374 break;
1375 }
1376 }
1377
1378 if (isset($thisfile_asf_codeclistobject['codec_entries']) && is_array($thisfile_asf_codeclistobject['codec_entries'])) {
1379 foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
1380 switch ($streamdata['information']) {
1381 case 'WMV1':
1382 case 'WMV2':
1383 case 'WMV3':
1384 case 'MSS1':
1385 case 'MSS2':
1386 case 'WMVA':
1387 case 'WVC1':
1388 case 'WMVP':
1389 case 'WVP2':
1390 $thisfile_video['dataformat'] = 'wmv';
1391 $info['mime_type'] = 'video/x-ms-wmv';
1392 break;
1393
1394 case 'MP42':
1395 case 'MP43':
1396 case 'MP4S':
1397 case 'mp4s':
1398 $thisfile_video['dataformat'] = 'asf';
1399 $info['mime_type'] = 'video/x-ms-asf';
1400 break;
1401
1402 default:
1403 switch ($streamdata['type_raw']) {
1404 case 1:
1405 if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
1406 $thisfile_video['dataformat'] = 'wmv';
1407 if ($info['mime_type'] == 'video/x-ms-asf') {
1408 $info['mime_type'] = 'video/x-ms-wmv';
1409 }
1410 }
1411 break;
1412
1413 case 2:
1414 if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
1415 $thisfile_audio['dataformat'] = 'wma';
1416 if ($info['mime_type'] == 'video/x-ms-asf') {
1417 $info['mime_type'] = 'audio/x-ms-wma';
1418 }
1419 }
1420 break;
1421
1422 }
1423 break;
1424 }
1425 }
1426 }
1427
1428 switch (isset($thisfile_audio['codec']) ? $thisfile_audio['codec'] : '') {
1429 case 'MPEG Layer-3':
1430 $thisfile_audio['dataformat'] = 'mp3';
1431 break;
1432
1433 default:
1434 break;
1435 }
1436
1437 if (isset($thisfile_asf_codeclistobject['codec_entries'])) {
1438 foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
1439 switch ($streamdata['type_raw']) {
1440
1441 case 1: // video
1442 $thisfile_video['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
1443 break;
1444
1445 case 2: // audio
1446 $thisfile_audio['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
1447
1448 // AH 2003-10-01
1449 $thisfile_audio['encoder_options'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][0]['description']);
1450
1451 $thisfile_audio['codec'] = $thisfile_audio['encoder'];
1452 break;
1453
1454 default:
1455 $this->warning('Unknown streamtype: [codec_list_object][codec_entries]['.$streamnumber.'][type_raw] == '.$streamdata['type_raw']);
1456 break;
1457
1458 }
1459 }
1460 }
1461
1462 if (isset($info['audio'])) {
1463 $thisfile_audio['lossless'] = (isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false);
1464 $thisfile_audio['dataformat'] = (!empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf');
1465 }
1466 if (!empty($thisfile_video['dataformat'])) {
1467 $thisfile_video['lossless'] = (isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false);
1468 $thisfile_video['pixel_aspect_ratio'] = (isset($thisfile_audio['pixel_aspect_ratio']) ? $thisfile_audio['pixel_aspect_ratio'] : (float) 1);
1469 $thisfile_video['dataformat'] = (!empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf');
1470 }
1471 if (!empty($thisfile_video['streams'])) {
1472 $thisfile_video['resolution_x'] = 0;
1473 $thisfile_video['resolution_y'] = 0;
1474 foreach ($thisfile_video['streams'] as $key => $valuearray) {
1475 if (($valuearray['resolution_x'] > $thisfile_video['resolution_x']) || ($valuearray['resolution_y'] > $thisfile_video['resolution_y'])) {
1476 $thisfile_video['resolution_x'] = $valuearray['resolution_x'];
1477 $thisfile_video['resolution_y'] = $valuearray['resolution_y'];
1478 }
1479 }
1480 }
1481 $info['bitrate'] = 0 + (isset($thisfile_audio['bitrate']) ? $thisfile_audio['bitrate'] : 0) + (isset($thisfile_video['bitrate']) ? $thisfile_video['bitrate'] : 0);
1482
1483 if ((!isset($info['playtime_seconds']) || ($info['playtime_seconds'] <= 0)) && ($info['bitrate'] > 0)) {
1484 $info['playtime_seconds'] = ($info['filesize'] - $info['avdataoffset']) / ($info['bitrate'] / 8);
1485 }
1486
1487 return true;
1488 }
1489
1490 /**
1491 * @param int $CodecListType
1492 *
1493 * @return string
1494 */
1495 public static function codecListObjectTypeLookup($CodecListType) {
1496 static $lookup = array(
1497 0x0001 => 'Video Codec',
1498 0x0002 => 'Audio Codec',
1499 0xFFFF => 'Unknown Codec'
1500 );
1501
1502 return (isset($lookup[$CodecListType]) ? $lookup[$CodecListType] : 'Invalid Codec Type');
1503 }
1504
1505 /**
1506 * @return array
1507 */
1508 public static function KnownGUIDs() {
1509 static $GUIDarray = array(
1510 'GETID3_ASF_Extended_Stream_Properties_Object' => '14E6A5CB-C672-4332-8399-A96952065B5A',
1511 'GETID3_ASF_Padding_Object' => '1806D474-CADF-4509-A4BA-9AABCB96AAE8',
1512 'GETID3_ASF_Payload_Ext_Syst_Pixel_Aspect_Ratio' => '1B1EE554-F9EA-4BC8-821A-376B74E4C4B8',
1513 'GETID3_ASF_Script_Command_Object' => '1EFB1A30-0B62-11D0-A39B-00A0C90348F6',
1514 'GETID3_ASF_No_Error_Correction' => '20FB5700-5B55-11CF-A8FD-00805F5C442B',
1515 'GETID3_ASF_Content_Branding_Object' => '2211B3FA-BD23-11D2-B4B7-00A0C955FC6E',
1516 'GETID3_ASF_Content_Encryption_Object' => '2211B3FB-BD23-11D2-B4B7-00A0C955FC6E',
1517 'GETID3_ASF_Digital_Signature_Object' => '2211B3FC-BD23-11D2-B4B7-00A0C955FC6E',
1518 'GETID3_ASF_Extended_Content_Encryption_Object' => '298AE614-2622-4C17-B935-DAE07EE9289C',
1519 'GETID3_ASF_Simple_Index_Object' => '33000890-E5B1-11CF-89F4-00A0C90349CB',
1520 'GETID3_ASF_Degradable_JPEG_Media' => '35907DE0-E415-11CF-A917-00805F5C442B',
1521 'GETID3_ASF_Payload_Extension_System_Timecode' => '399595EC-8667-4E2D-8FDB-98814CE76C1E',
1522 'GETID3_ASF_Binary_Media' => '3AFB65E2-47EF-40F2-AC2C-70A90D71D343',
1523 'GETID3_ASF_Timecode_Index_Object' => '3CB73FD0-0C4A-4803-953D-EDF7B6228F0C',
1524 'GETID3_ASF_Metadata_Library_Object' => '44231C94-9498-49D1-A141-1D134E457054',
1525 'GETID3_ASF_Reserved_3' => '4B1ACBE3-100B-11D0-A39B-00A0C90348F6',
1526 'GETID3_ASF_Reserved_4' => '4CFEDB20-75F6-11CF-9C0F-00A0C90349CB',
1527 'GETID3_ASF_Command_Media' => '59DACFC0-59E6-11D0-A3AC-00A0C90348F6',
1528 'GETID3_ASF_Header_Extension_Object' => '5FBF03B5-A92E-11CF-8EE3-00C00C205365',
1529 'GETID3_ASF_Media_Object_Index_Parameters_Obj' => '6B203BAD-3F11-4E84-ACA8-D7613DE2CFA7',
1530 'GETID3_ASF_Header_Object' => '75B22630-668E-11CF-A6D9-00AA0062CE6C',
1531 'GETID3_ASF_Content_Description_Object' => '75B22633-668E-11CF-A6D9-00AA0062CE6C',
1532 'GETID3_ASF_Error_Correction_Object' => '75B22635-668E-11CF-A6D9-00AA0062CE6C',
1533 'GETID3_ASF_Data_Object' => '75B22636-668E-11CF-A6D9-00AA0062CE6C',
1534 'GETID3_ASF_Web_Stream_Media_Subtype' => '776257D4-C627-41CB-8F81-7AC7FF1C40CC',
1535 'GETID3_ASF_Stream_Bitrate_Properties_Object' => '7BF875CE-468D-11D1-8D82-006097C9A2B2',
1536 'GETID3_ASF_Language_List_Object' => '7C4346A9-EFE0-4BFC-B229-393EDE415C85',
1537 'GETID3_ASF_Codec_List_Object' => '86D15240-311D-11D0-A3A4-00A0C90348F6',
1538 'GETID3_ASF_Reserved_2' => '86D15241-311D-11D0-A3A4-00A0C90348F6',
1539 'GETID3_ASF_File_Properties_Object' => '8CABDCA1-A947-11CF-8EE4-00C00C205365',
1540 'GETID3_ASF_File_Transfer_Media' => '91BD222C-F21C-497A-8B6D-5AA86BFC0185',
1541 'GETID3_ASF_Old_RTP_Extension_Data' => '96800C63-4C94-11D1-837B-0080C7A37F95',
1542 'GETID3_ASF_Advanced_Mutual_Exclusion_Object' => 'A08649CF-4775-4670-8A16-6E35357566CD',
1543 'GETID3_ASF_Bandwidth_Sharing_Object' => 'A69609E6-517B-11D2-B6AF-00C04FD908E9',
1544 'GETID3_ASF_Reserved_1' => 'ABD3D211-A9BA-11cf-8EE6-00C00C205365',
1545 'GETID3_ASF_Bandwidth_Sharing_Exclusive' => 'AF6060AA-5197-11D2-B6AF-00C04FD908E9',
1546 'GETID3_ASF_Bandwidth_Sharing_Partial' => 'AF6060AB-5197-11D2-B6AF-00C04FD908E9',
1547 'GETID3_ASF_JFIF_Media' => 'B61BE100-5B4E-11CF-A8FD-00805F5C442B',
1548 'GETID3_ASF_Stream_Properties_Object' => 'B7DC0791-A9B7-11CF-8EE6-00C00C205365',
1549 'GETID3_ASF_Video_Media' => 'BC19EFC0-5B4D-11CF-A8FD-00805F5C442B',
1550 'GETID3_ASF_Audio_Spread' => 'BFC3CD50-618F-11CF-8BB2-00AA00B4E220',
1551 'GETID3_ASF_Metadata_Object' => 'C5F8CBEA-5BAF-4877-8467-AA8C44FA4CCA',
1552 'GETID3_ASF_Payload_Ext_Syst_Sample_Duration' => 'C6BD9450-867F-4907-83A3-C77921B733AD',
1553 'GETID3_ASF_Group_Mutual_Exclusion_Object' => 'D1465A40-5A79-4338-B71B-E36B8FD6C249',
1554 'GETID3_ASF_Extended_Content_Description_Object' => 'D2D0A440-E307-11D2-97F0-00A0C95EA850',
1555 'GETID3_ASF_Stream_Prioritization_Object' => 'D4FED15B-88D3-454F-81F0-ED5C45999E24',
1556 'GETID3_ASF_Payload_Ext_System_Content_Type' => 'D590DC20-07BC-436C-9CF7-F3BBFBF1A4DC',
1557 'GETID3_ASF_Old_File_Properties_Object' => 'D6E229D0-35DA-11D1-9034-00A0C90349BE',
1558 'GETID3_ASF_Old_ASF_Header_Object' => 'D6E229D1-35DA-11D1-9034-00A0C90349BE',
1559 'GETID3_ASF_Old_ASF_Data_Object' => 'D6E229D2-35DA-11D1-9034-00A0C90349BE',
1560 'GETID3_ASF_Index_Object' => 'D6E229D3-35DA-11D1-9034-00A0C90349BE',
1561 'GETID3_ASF_Old_Stream_Properties_Object' => 'D6E229D4-35DA-11D1-9034-00A0C90349BE',
1562 'GETID3_ASF_Old_Content_Description_Object' => 'D6E229D5-35DA-11D1-9034-00A0C90349BE',
1563 'GETID3_ASF_Old_Script_Command_Object' => 'D6E229D6-35DA-11D1-9034-00A0C90349BE',
1564 'GETID3_ASF_Old_Marker_Object' => 'D6E229D7-35DA-11D1-9034-00A0C90349BE',
1565 'GETID3_ASF_Old_Component_Download_Object' => 'D6E229D8-35DA-11D1-9034-00A0C90349BE',
1566 'GETID3_ASF_Old_Stream_Group_Object' => 'D6E229D9-35DA-11D1-9034-00A0C90349BE',
1567 'GETID3_ASF_Old_Scalable_Object' => 'D6E229DA-35DA-11D1-9034-00A0C90349BE',
1568 'GETID3_ASF_Old_Prioritization_Object' => 'D6E229DB-35DA-11D1-9034-00A0C90349BE',
1569 'GETID3_ASF_Bitrate_Mutual_Exclusion_Object' => 'D6E229DC-35DA-11D1-9034-00A0C90349BE',
1570 'GETID3_ASF_Old_Inter_Media_Dependency_Object' => 'D6E229DD-35DA-11D1-9034-00A0C90349BE',
1571 'GETID3_ASF_Old_Rating_Object' => 'D6E229DE-35DA-11D1-9034-00A0C90349BE',
1572 'GETID3_ASF_Index_Parameters_Object' => 'D6E229DF-35DA-11D1-9034-00A0C90349BE',
1573 'GETID3_ASF_Old_Color_Table_Object' => 'D6E229E0-35DA-11D1-9034-00A0C90349BE',
1574 'GETID3_ASF_Old_Language_List_Object' => 'D6E229E1-35DA-11D1-9034-00A0C90349BE',
1575 'GETID3_ASF_Old_Audio_Media' => 'D6E229E2-35DA-11D1-9034-00A0C90349BE',
1576 'GETID3_ASF_Old_Video_Media' => 'D6E229E3-35DA-11D1-9034-00A0C90349BE',
1577 'GETID3_ASF_Old_Image_Media' => 'D6E229E4-35DA-11D1-9034-00A0C90349BE',
1578 'GETID3_ASF_Old_Timecode_Media' => 'D6E229E5-35DA-11D1-9034-00A0C90349BE',
1579 'GETID3_ASF_Old_Text_Media' => 'D6E229E6-35DA-11D1-9034-00A0C90349BE',
1580 'GETID3_ASF_Old_MIDI_Media' => 'D6E229E7-35DA-11D1-9034-00A0C90349BE',
1581 'GETID3_ASF_Old_Command_Media' => 'D6E229E8-35DA-11D1-9034-00A0C90349BE',
1582 'GETID3_ASF_Old_No_Error_Concealment' => 'D6E229EA-35DA-11D1-9034-00A0C90349BE',
1583 'GETID3_ASF_Old_Scrambled_Audio' => 'D6E229EB-35DA-11D1-9034-00A0C90349BE',
1584 'GETID3_ASF_Old_No_Color_Table' => 'D6E229EC-35DA-11D1-9034-00A0C90349BE',
1585 'GETID3_ASF_Old_SMPTE_Time' => 'D6E229ED-35DA-11D1-9034-00A0C90349BE',
1586 'GETID3_ASF_Old_ASCII_Text' => 'D6E229EE-35DA-11D1-9034-00A0C90349BE',
1587 'GETID3_ASF_Old_Unicode_Text' => 'D6E229EF-35DA-11D1-9034-00A0C90349BE',
1588 'GETID3_ASF_Old_HTML_Text' => 'D6E229F0-35DA-11D1-9034-00A0C90349BE',
1589 'GETID3_ASF_Old_URL_Command' => 'D6E229F1-35DA-11D1-9034-00A0C90349BE',
1590 'GETID3_ASF_Old_Filename_Command' => 'D6E229F2-35DA-11D1-9034-00A0C90349BE',
1591 'GETID3_ASF_Old_ACM_Codec' => 'D6E229F3-35DA-11D1-9034-00A0C90349BE',
1592 'GETID3_ASF_Old_VCM_Codec' => 'D6E229F4-35DA-11D1-9034-00A0C90349BE',
1593 'GETID3_ASF_Old_QuickTime_Codec' => 'D6E229F5-35DA-11D1-9034-00A0C90349BE',
1594 'GETID3_ASF_Old_DirectShow_Transform_Filter' => 'D6E229F6-35DA-11D1-9034-00A0C90349BE',
1595 'GETID3_ASF_Old_DirectShow_Rendering_Filter' => 'D6E229F7-35DA-11D1-9034-00A0C90349BE',
1596 'GETID3_ASF_Old_No_Enhancement' => 'D6E229F8-35DA-11D1-9034-00A0C90349BE',
1597 'GETID3_ASF_Old_Unknown_Enhancement_Type' => 'D6E229F9-35DA-11D1-9034-00A0C90349BE',
1598 'GETID3_ASF_Old_Temporal_Enhancement' => 'D6E229FA-35DA-11D1-9034-00A0C90349BE',
1599 'GETID3_ASF_Old_Spatial_Enhancement' => 'D6E229FB-35DA-11D1-9034-00A0C90349BE',
1600 'GETID3_ASF_Old_Quality_Enhancement' => 'D6E229FC-35DA-11D1-9034-00A0C90349BE',
1601 'GETID3_ASF_Old_Number_of_Channels_Enhancement' => 'D6E229FD-35DA-11D1-9034-00A0C90349BE',
1602 'GETID3_ASF_Old_Frequency_Response_Enhancement' => 'D6E229FE-35DA-11D1-9034-00A0C90349BE',
1603 'GETID3_ASF_Old_Media_Object' => 'D6E229FF-35DA-11D1-9034-00A0C90349BE',
1604 'GETID3_ASF_Mutex_Language' => 'D6E22A00-35DA-11D1-9034-00A0C90349BE',
1605 'GETID3_ASF_Mutex_Bitrate' => 'D6E22A01-35DA-11D1-9034-00A0C90349BE',
1606 'GETID3_ASF_Mutex_Unknown' => 'D6E22A02-35DA-11D1-9034-00A0C90349BE',
1607 'GETID3_ASF_Old_ASF_Placeholder_Object' => 'D6E22A0E-35DA-11D1-9034-00A0C90349BE',
1608 'GETID3_ASF_Old_Data_Unit_Extension_Object' => 'D6E22A0F-35DA-11D1-9034-00A0C90349BE',
1609 'GETID3_ASF_Web_Stream_Format' => 'DA1E6B13-8359-4050-B398-388E965BF00C',
1610 'GETID3_ASF_Payload_Ext_System_File_Name' => 'E165EC0E-19ED-45D7-B4A7-25CBD1E28E9B',
1611 'GETID3_ASF_Marker_Object' => 'F487CD01-A951-11CF-8EE6-00C00C205365',
1612 'GETID3_ASF_Timecode_Index_Parameters_Object' => 'F55E496D-9797-4B5D-8C8B-604DFE9BFB24',
1613 'GETID3_ASF_Audio_Media' => 'F8699E40-5B4D-11CF-A8FD-00805F5C442B',
1614 'GETID3_ASF_Media_Object_Index_Object' => 'FEB103F8-12AD-4C64-840F-2A1D2F7AD48C',
1615 'GETID3_ASF_Alt_Extended_Content_Encryption_Obj' => 'FF889EF1-ADEE-40DA-9E71-98704BB928CE',
1616 'GETID3_ASF_Index_Placeholder_Object' => 'D9AADE20-7C17-4F9C-BC28-8555DD98E2A2', // https://metacpan.org/dist/Audio-WMA/source/WMA.pm
1617 'GETID3_ASF_Compatibility_Object' => '26F18B5D-4584-47EC-9F5F-0E651F0452C9', // https://metacpan.org/dist/Audio-WMA/source/WMA.pm
1618 'GETID3_ASF_Media_Object_Index_Parameters_Object'=> '6B203BAD-3F11-48E4-ACA8-D7613DE2CFA7',
1619 );
1620 return $GUIDarray;
1621 }
1622
1623 /**
1624 * @param string $GUIDstring
1625 *
1626 * @return string|false
1627 */
1628 public static function GUIDname($GUIDstring) {
1629 static $GUIDarray = array();
1630 if (empty($GUIDarray)) {
1631 $GUIDarray = self::KnownGUIDs();
1632 }
1633 return array_search($GUIDstring, $GUIDarray);
1634 }
1635
1636 /**
1637 * @param int $id
1638 *
1639 * @return string
1640 */
1641 public static function ASFIndexObjectIndexTypeLookup($id) {
1642 static $ASFIndexObjectIndexTypeLookup = array();
1643 if (empty($ASFIndexObjectIndexTypeLookup)) {
1644 $ASFIndexObjectIndexTypeLookup[1] = 'Nearest Past Data Packet';
1645 $ASFIndexObjectIndexTypeLookup[2] = 'Nearest Past Media Object';
1646 $ASFIndexObjectIndexTypeLookup[3] = 'Nearest Past Cleanpoint';
1647 }
1648 return (isset($ASFIndexObjectIndexTypeLookup[$id]) ? $ASFIndexObjectIndexTypeLookup[$id] : 'invalid');
1649 }
1650
1651 /**
1652 * @param string $GUIDstring
1653 *
1654 * @return string
1655 */
1656 public static function GUIDtoBytestring($GUIDstring) {
1657 // Microsoft defines these 16-byte (128-bit) GUIDs in the strangest way:
1658 // first 4 bytes are in little-endian order
1659 // next 2 bytes are appended in little-endian order
1660 // next 2 bytes are appended in little-endian order
1661 // next 2 bytes are appended in big-endian order
1662 // next 6 bytes are appended in big-endian order
1663
1664 // AaBbCcDd-EeFf-GgHh-IiJj-KkLlMmNnOoPp is stored as this 16-byte string:
1665 // $Dd $Cc $Bb $Aa $Ff $Ee $Hh $Gg $Ii $Jj $Kk $Ll $Mm $Nn $Oo $Pp
1666
1667 $hexbytecharstring = chr(hexdec(substr($GUIDstring, 6, 2)));
1668 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 4, 2)));
1669 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 2, 2)));
1670 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 0, 2)));
1671
1672 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 11, 2)));
1673 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 9, 2)));
1674
1675 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 16, 2)));
1676 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 14, 2)));
1677
1678 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 19, 2)));
1679 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 21, 2)));
1680
1681 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 24, 2)));
1682 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 26, 2)));
1683 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 28, 2)));
1684 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 30, 2)));
1685 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 32, 2)));
1686 $hexbytecharstring .= chr(hexdec(substr($GUIDstring, 34, 2)));
1687
1688 return $hexbytecharstring;
1689 }
1690
1691 /**
1692 * @param string $Bytestring
1693 *
1694 * @return string
1695 */
1696 public static function BytestringToGUID($Bytestring) {
1697 $GUIDstring = str_pad(dechex(ord($Bytestring[3])), 2, '0', STR_PAD_LEFT);
1698 $GUIDstring .= str_pad(dechex(ord($Bytestring[2])), 2, '0', STR_PAD_LEFT);
1699 $GUIDstring .= str_pad(dechex(ord($Bytestring[1])), 2, '0', STR_PAD_LEFT);
1700 $GUIDstring .= str_pad(dechex(ord($Bytestring[0])), 2, '0', STR_PAD_LEFT);
1701 $GUIDstring .= '-';
1702 $GUIDstring .= str_pad(dechex(ord($Bytestring[5])), 2, '0', STR_PAD_LEFT);
1703 $GUIDstring .= str_pad(dechex(ord($Bytestring[4])), 2, '0', STR_PAD_LEFT);
1704 $GUIDstring .= '-';
1705 $GUIDstring .= str_pad(dechex(ord($Bytestring[7])), 2, '0', STR_PAD_LEFT);
1706 $GUIDstring .= str_pad(dechex(ord($Bytestring[6])), 2, '0', STR_PAD_LEFT);
1707 $GUIDstring .= '-';
1708 $GUIDstring .= str_pad(dechex(ord($Bytestring[8])), 2, '0', STR_PAD_LEFT);
1709 $GUIDstring .= str_pad(dechex(ord($Bytestring[9])), 2, '0', STR_PAD_LEFT);
1710 $GUIDstring .= '-';
1711 $GUIDstring .= str_pad(dechex(ord($Bytestring[10])), 2, '0', STR_PAD_LEFT);
1712 $GUIDstring .= str_pad(dechex(ord($Bytestring[11])), 2, '0', STR_PAD_LEFT);
1713 $GUIDstring .= str_pad(dechex(ord($Bytestring[12])), 2, '0', STR_PAD_LEFT);
1714 $GUIDstring .= str_pad(dechex(ord($Bytestring[13])), 2, '0', STR_PAD_LEFT);
1715 $GUIDstring .= str_pad(dechex(ord($Bytestring[14])), 2, '0', STR_PAD_LEFT);
1716 $GUIDstring .= str_pad(dechex(ord($Bytestring[15])), 2, '0', STR_PAD_LEFT);
1717
1718 return strtoupper($GUIDstring);
1719 }
1720
1721 /**
1722 * @param int $FILETIME
1723 * @param bool $round
1724 *
1725 * @return float|int
1726 */
1727 public static function FILETIMEtoUNIXtime($FILETIME, $round=true) {
1728 // FILETIME is a 64-bit unsigned integer representing
1729 // the number of 100-nanosecond intervals since January 1, 1601
1730 // UNIX timestamp is number of seconds since January 1, 1970
1731 // 116444736000000000 = 10000000 * 60 * 60 * 24 * 365 * 369 + 89 leap days
1732 if ($round) {
1733 return intval(round(($FILETIME - 116444736000000000) / 10000000));
1734 }
1735 return ($FILETIME - 116444736000000000) / 10000000;
1736 }
1737
1738 /**
1739 * @param int $WMpictureType
1740 *
1741 * @return string
1742 */
1743 public static function WMpictureTypeLookup($WMpictureType) {
1744 static $lookup = null;
1745 if ($lookup === null) {
1746 $lookup = array(
1747 0x03 => 'Front Cover',
1748 0x04 => 'Back Cover',
1749 0x00 => 'User Defined',
1750 0x05 => 'Leaflet Page',
1751 0x06 => 'Media Label',
1752 0x07 => 'Lead Artist',
1753 0x08 => 'Artist',
1754 0x09 => 'Conductor',
1755 0x0A => 'Band',
1756 0x0B => 'Composer',
1757 0x0C => 'Lyricist',
1758 0x0D => 'Recording Location',
1759 0x0E => 'During Recording',
1760 0x0F => 'During Performance',
1761 0x10 => 'Video Screen Capture',
1762 0x12 => 'Illustration',
1763 0x13 => 'Band Logotype',
1764 0x14 => 'Publisher Logotype'
1765 );
1766 $lookup = array_map(function($str) {
1767 return getid3_lib::iconv_fallback('UTF-8', 'UTF-16LE', $str);
1768 }, $lookup);
1769 }
1770
1771 return (isset($lookup[$WMpictureType]) ? $lookup[$WMpictureType] : '');
1772 }
1773
1774 /**
1775 * @param string $asf_header_extension_object_data
1776 * @param int $unhandled_sections
1777 *
1778 * @return array
1779 */
1780 public function HeaderExtensionObjectDataParse(&$asf_header_extension_object_data, &$unhandled_sections) {
1781 // https://web.archive.org/web/20140419205228/http://msdn.microsoft.com/en-us/library/bb643323.aspx
1782
1783 $offset = 0;
1784 $objectOffset = 0;
1785 $HeaderExtensionObjectParsed = array();
1786 while ($objectOffset < strlen($asf_header_extension_object_data)) {
1787 $offset = $objectOffset;
1788 $thisObject = array();
1789
1790 $thisObject['guid'] = substr($asf_header_extension_object_data, $offset, 16);
1791 $offset += 16;
1792 $thisObject['guid_text'] = $this->BytestringToGUID($thisObject['guid']);
1793 $thisObject['guid_name'] = $this->GUIDname($thisObject['guid_text']);
1794
1795 $thisObject['size'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 8));
1796 $offset += 8;
1797 if ($thisObject['size'] <= 0) {
1798 break;
1799 }
1800
1801 switch ($thisObject['guid']) {
1802 case GETID3_ASF_Extended_Stream_Properties_Object:
1803 $thisObject['start_time'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 8));
1804 $offset += 8;
1805 $thisObject['start_time_unix'] = $this->FILETIMEtoUNIXtime($thisObject['start_time']);
1806
1807 $thisObject['end_time'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 8));
1808 $offset += 8;
1809 $thisObject['end_time_unix'] = $this->FILETIMEtoUNIXtime($thisObject['end_time']);
1810
1811 $thisObject['data_bitrate'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1812 $offset += 4;
1813
1814 $thisObject['buffer_size'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1815 $offset += 4;
1816
1817 $thisObject['initial_buffer_fullness'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1818 $offset += 4;
1819
1820 $thisObject['alternate_data_bitrate'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1821 $offset += 4;
1822
1823 $thisObject['alternate_buffer_size'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1824 $offset += 4;
1825
1826 $thisObject['alternate_initial_buffer_fullness'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1827 $offset += 4;
1828
1829 $thisObject['maximum_object_size'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1830 $offset += 4;
1831
1832 $thisObject['flags_raw'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1833 $offset += 4;
1834 $thisObject['flags']['reliable'] = (bool) $thisObject['flags_raw'] & 0x00000001;
1835 $thisObject['flags']['seekable'] = (bool) $thisObject['flags_raw'] & 0x00000002;
1836 $thisObject['flags']['no_cleanpoints'] = (bool) $thisObject['flags_raw'] & 0x00000004;
1837 $thisObject['flags']['resend_live_cleanpoints'] = (bool) $thisObject['flags_raw'] & 0x00000008;
1838
1839 $thisObject['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1840 $offset += 2;
1841
1842 $thisObject['stream_language_id_index'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1843 $offset += 2;
1844
1845 $thisObject['average_time_per_frame'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 8));
1846 $offset += 8;
1847
1848 $thisObject['stream_name_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1849 $offset += 2;
1850
1851 $thisObject['payload_extension_system_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1852 $offset += 2;
1853
1854 for ($i = 0; $i < $thisObject['stream_name_count']; $i++) {
1855 $streamName = array();
1856
1857 $streamName['language_id_index'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1858 $offset += 2;
1859
1860 $streamName['stream_name_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1861 $offset += 2;
1862
1863 $streamName['stream_name'] = substr($asf_header_extension_object_data, $offset, $streamName['stream_name_length']);
1864 $offset += $streamName['stream_name_length'];
1865
1866 $thisObject['stream_names'][$i] = $streamName;
1867 }
1868
1869 for ($i = 0; $i < $thisObject['payload_extension_system_count']; $i++) {
1870 $payloadExtensionSystem = array();
1871
1872 $payloadExtensionSystem['extension_system_id'] = substr($asf_header_extension_object_data, $offset, 16);
1873 $offset += 16;
1874 $payloadExtensionSystem['extension_system_id_text'] = $this->BytestringToGUID($payloadExtensionSystem['extension_system_id']);
1875
1876 $payloadExtensionSystem['extension_system_size'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1877 $offset += 2;
1878 if ($payloadExtensionSystem['extension_system_size'] <= 0) {
1879 break 2;
1880 }
1881
1882 $payloadExtensionSystem['extension_system_info_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1883 $offset += 4;
1884
1885 $payloadExtensionSystem['extension_system_info'] = substr($asf_header_extension_object_data, $offset, $payloadExtensionSystem['extension_system_info_length']);
1886 $offset += $payloadExtensionSystem['extension_system_info_length'];
1887
1888 $thisObject['payload_extension_systems'][$i] = $payloadExtensionSystem;
1889 }
1890
1891 break;
1892
1893 case GETID3_ASF_Advanced_Mutual_Exclusion_Object:
1894 $thisObject['exclusion_type'] = substr($asf_header_extension_object_data, $offset, 16);
1895 $offset += 16;
1896 $thisObject['exclusion_type_text'] = $this->BytestringToGUID($thisObject['exclusion_type']);
1897
1898 $thisObject['stream_numbers_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1899 $offset += 2;
1900
1901 for ($i = 0; $i < $thisObject['stream_numbers_count']; $i++) {
1902 $thisObject['stream_numbers'][$i] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1903 $offset += 2;
1904 }
1905
1906 break;
1907
1908 case GETID3_ASF_Stream_Prioritization_Object:
1909 $thisObject['priority_records_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1910 $offset += 2;
1911
1912 for ($i = 0; $i < $thisObject['priority_records_count']; $i++) {
1913 $priorityRecord = array();
1914
1915 $priorityRecord['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1916 $offset += 2;
1917
1918 $priorityRecord['flags_raw'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1919 $offset += 2;
1920 $priorityRecord['flags']['mandatory'] = (bool) $priorityRecord['flags_raw'] & 0x00000001;
1921
1922 $thisObject['priority_records'][$i] = $priorityRecord;
1923 }
1924
1925 break;
1926
1927 case GETID3_ASF_Padding_Object:
1928 // padding, skip it
1929 break;
1930
1931 case GETID3_ASF_Metadata_Object:
1932 $thisObject['description_record_counts'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1933 $offset += 2;
1934
1935 for ($i = 0; $i < $thisObject['description_record_counts']; $i++) {
1936 $descriptionRecord = array();
1937
1938 $descriptionRecord['reserved_1'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2)); // must be zero
1939 $offset += 2;
1940
1941 $descriptionRecord['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1942 $offset += 2;
1943
1944 $descriptionRecord['name_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1945 $offset += 2;
1946
1947 $descriptionRecord['data_type'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1948 $offset += 2;
1949 $descriptionRecord['data_type_text'] = self::metadataLibraryObjectDataTypeLookup($descriptionRecord['data_type']);
1950
1951 $descriptionRecord['data_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
1952 $offset += 4;
1953
1954 $descriptionRecord['name'] = substr($asf_header_extension_object_data, $offset, $descriptionRecord['name_length']);
1955 $offset += $descriptionRecord['name_length'];
1956
1957 $descriptionRecord['data'] = substr($asf_header_extension_object_data, $offset, $descriptionRecord['data_length']);
1958 $offset += $descriptionRecord['data_length'];
1959 switch ($descriptionRecord['data_type']) {
1960 case 0x0000: // Unicode string
1961 break;
1962
1963 case 0x0001: // BYTE array
1964 // do nothing
1965 break;
1966
1967 case 0x0002: // BOOL
1968 $descriptionRecord['data'] = (bool) getid3_lib::LittleEndian2Int($descriptionRecord['data']);
1969 break;
1970
1971 case 0x0003: // DWORD
1972 case 0x0004: // QWORD
1973 case 0x0005: // WORD
1974 $descriptionRecord['data'] = getid3_lib::LittleEndian2Int($descriptionRecord['data']);
1975 break;
1976
1977 case 0x0006: // GUID
1978 $descriptionRecord['data_text'] = $this->BytestringToGUID($descriptionRecord['data']);
1979 break;
1980 }
1981
1982 $thisObject['description_record'][$i] = $descriptionRecord;
1983 }
1984 break;
1985
1986 case GETID3_ASF_Language_List_Object:
1987 $thisObject['language_id_record_counts'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
1988 $offset += 2;
1989
1990 for ($i = 0; $i < $thisObject['language_id_record_counts']; $i++) {
1991 $languageIDrecord = array();
1992
1993 $languageIDrecord['language_id_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 1));
1994 $offset += 1;
1995
1996 $languageIDrecord['language_id'] = substr($asf_header_extension_object_data, $offset, $languageIDrecord['language_id_length']);
1997 $offset += $languageIDrecord['language_id_length'];
1998
1999 $thisObject['language_id_record'][$i] = $languageIDrecord;
2000 }
2001 break;
2002
2003 case GETID3_ASF_Metadata_Library_Object:
2004 $thisObject['description_records_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2005 $offset += 2;
2006
2007 for ($i = 0; $i < $thisObject['description_records_count']; $i++) {
2008 $descriptionRecord = array();
2009
2010 $descriptionRecord['language_list_index'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2011 $offset += 2;
2012
2013 $descriptionRecord['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2014 $offset += 2;
2015
2016 $descriptionRecord['name_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2017 $offset += 2;
2018
2019 $descriptionRecord['data_type'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2020 $offset += 2;
2021 $descriptionRecord['data_type_text'] = self::metadataLibraryObjectDataTypeLookup($descriptionRecord['data_type']);
2022
2023 $descriptionRecord['data_length'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
2024 $offset += 4;
2025
2026 $descriptionRecord['name'] = substr($asf_header_extension_object_data, $offset, $descriptionRecord['name_length']);
2027 $offset += $descriptionRecord['name_length'];
2028
2029 $descriptionRecord['data'] = substr($asf_header_extension_object_data, $offset, $descriptionRecord['data_length']);
2030 $offset += $descriptionRecord['data_length'];
2031
2032 if (preg_match('#^WM/Picture$#', str_replace("\x00", '', trim($descriptionRecord['name'])))) {
2033 $WMpicture = $this->ASF_WMpicture($descriptionRecord['data']);
2034 foreach ($WMpicture as $key => $value) {
2035 $descriptionRecord['data'] = $WMpicture;
2036 }
2037 unset($WMpicture);
2038 }
2039
2040 $thisObject['description_record'][$i] = $descriptionRecord;
2041 }
2042 break;
2043
2044 case GETID3_ASF_Index_Parameters_Object:
2045 $thisObject['index_entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
2046 $offset += 4;
2047
2048 $thisObject['index_specifiers_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2049 $offset += 2;
2050
2051 for ($i = 0; $i < $thisObject['index_specifiers_count']; $i++) {
2052 $indexSpecifier = array();
2053
2054 $indexSpecifier['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2055 $offset += 2;
2056
2057 $indexSpecifier['index_type'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2058 $offset += 2;
2059 $indexSpecifier['index_type_text'] = isset(static::$ASFIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']])
2060 ? static::$ASFIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']]
2061 : 'invalid'
2062 ;
2063
2064 $thisObject['index_specifiers'][$i] = $indexSpecifier;
2065 }
2066
2067 break;
2068
2069 case GETID3_ASF_Media_Object_Index_Parameters_Object:
2070 $thisObject['index_entry_count_interval'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
2071 $offset += 4;
2072
2073 $thisObject['index_specifiers_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2074 $offset += 2;
2075
2076 for ($i = 0; $i < $thisObject['index_specifiers_count']; $i++) {
2077 $indexSpecifier = array();
2078
2079 $indexSpecifier['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2080 $offset += 2;
2081
2082 $indexSpecifier['index_type'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2083 $offset += 2;
2084 $indexSpecifier['index_type_text'] = isset(static::$ASFMediaObjectIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']])
2085 ? static::$ASFMediaObjectIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']]
2086 : 'invalid'
2087 ;
2088
2089 $thisObject['index_specifiers'][$i] = $indexSpecifier;
2090 }
2091
2092 break;
2093
2094 case GETID3_ASF_Timecode_Index_Parameters_Object:
2095 // 4.11 Timecode Index Parameters Object (mandatory only if TIMECODE index is present in file, 0 or 1)
2096 // Field name Field type Size (bits)
2097 // Object ID GUID 128 // GUID for the Timecode Index Parameters Object - ASF_Timecode_Index_Parameters_Object
2098 // Object Size QWORD 64 // Specifies the size, in bytes, of the Timecode Index Parameters Object. Valid values are at least 34 bytes.
2099 // Index Entry Count Interval DWORD 32 // This value is ignored for the Timecode Index Parameters Object.
2100 // Index Specifiers Count WORD 16 // Specifies the number of entries in the Index Specifiers list. Valid values are 1 and greater.
2101 // Index Specifiers array of: varies //
2102 // * Stream Number WORD 16 // Specifies the stream number that the Index Specifiers refer to. Valid values are between 1 and 127.
2103 // * Index Type WORD 16 // Specifies the type of index. Values are defined as follows (1 is not a valid value):
2104 // 2 = Nearest Past Media Object - indexes point to the closest data packet containing an entire video frame or the first fragment of a video frame
2105 // 3 = Nearest Past Cleanpoint - indexes point to the closest data packet containing an entire video frame (or first fragment of a video frame) that is a key frame.
2106 // Nearest Past Media Object is the most common value
2107
2108 $thisObject['index_entry_count_interval'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 4));
2109 $offset += 4;
2110
2111 $thisObject['index_specifiers_count'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2112 $offset += 2;
2113
2114 for ($i = 0; $i < $thisObject['index_specifiers_count']; $i++) {
2115 $indexSpecifier = array();
2116
2117 $indexSpecifier['stream_number'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2118 $offset += 2;
2119
2120 $indexSpecifier['index_type'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 2));
2121 $offset += 2;
2122 $indexSpecifier['index_type_text'] = isset(static::$ASFTimecodeIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']])
2123 ? static::$ASFTimecodeIndexParametersObjectIndexSpecifiersIndexTypes[$indexSpecifier['index_type']]
2124 : 'invalid'
2125 ;
2126
2127 $thisObject['index_specifiers'][$i] = $indexSpecifier;
2128 }
2129
2130 break;
2131
2132 case GETID3_ASF_Compatibility_Object:
2133 $thisObject['profile'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 1));
2134 $offset += 1;
2135
2136 $thisObject['mode'] = getid3_lib::LittleEndian2Int(substr($asf_header_extension_object_data, $offset, 1));
2137 $offset += 1;
2138
2139 break;
2140
2141 default:
2142 $unhandled_sections++;
2143 if ($this->GUIDname($thisObject['guid_text'])) {
2144 $this->warning('unhandled Header Extension Object GUID "'.$this->GUIDname($thisObject['guid_text']).'" {'.$thisObject['guid_text'].'} at offset '.($offset - 16 - 8));
2145 } else {
2146 $this->warning('unknown Header Extension Object GUID {'.$thisObject['guid_text'].'} in at offset '.($offset - 16 - 8));
2147 }
2148 break;
2149 }
2150 $HeaderExtensionObjectParsed[] = $thisObject;
2151
2152 $objectOffset += $thisObject['size'];
2153 }
2154 return $HeaderExtensionObjectParsed;
2155 }
2156
2157 /**
2158 * @param int $id
2159 *
2160 * @return string
2161 */
2162 public static function metadataLibraryObjectDataTypeLookup($id) {
2163 static $lookup = array(
2164 0x0000 => 'Unicode string', // The data consists of a sequence of Unicode characters
2165 0x0001 => 'BYTE array', // The type of the data is implementation-specific
2166 0x0002 => 'BOOL', // The data is 2 bytes long and should be interpreted as a 16-bit unsigned integer. Only 0x0000 or 0x0001 are permitted values
2167 0x0003 => 'DWORD', // The data is 4 bytes long and should be interpreted as a 32-bit unsigned integer
2168 0x0004 => 'QWORD', // The data is 8 bytes long and should be interpreted as a 64-bit unsigned integer
2169 0x0005 => 'WORD', // The data is 2 bytes long and should be interpreted as a 16-bit unsigned integer
2170 0x0006 => 'GUID', // The data is 16 bytes long and should be interpreted as a 128-bit GUID
2171 );
2172 return (isset($lookup[$id]) ? $lookup[$id] : 'invalid');
2173 }
2174
2175 /**
2176 * @param string $data
2177 *
2178 * @return array
2179 */
2180 public function ASF_WMpicture(&$data) {
2181 //typedef struct _WMPicture{
2182 // LPWSTR pwszMIMEType;
2183 // BYTE bPictureType;
2184 // LPWSTR pwszDescription;
2185 // DWORD dwDataLen;
2186 // BYTE* pbData;
2187 //} WM_PICTURE;
2188
2189 $WMpicture = array();
2190
2191 $offset = 0;
2192 $WMpicture['image_type_id'] = getid3_lib::LittleEndian2Int(substr($data, $offset, 1));
2193 $offset += 1;
2194 $WMpicture['image_type'] = self::WMpictureTypeLookup($WMpicture['image_type_id']);
2195 $WMpicture['image_size'] = getid3_lib::LittleEndian2Int(substr($data, $offset, 4));
2196 $offset += 4;
2197
2198 $WMpicture['image_mime'] = '';
2199 do {
2200 $next_byte_pair = substr($data, $offset, 2);
2201 $offset += 2;
2202 $WMpicture['image_mime'] .= $next_byte_pair;
2203 } while ($next_byte_pair !== "\x00\x00");
2204
2205 $WMpicture['image_description'] = '';
2206 do {
2207 $next_byte_pair = substr($data, $offset, 2);
2208 $offset += 2;
2209 $WMpicture['image_description'] .= $next_byte_pair;
2210 } while ($next_byte_pair !== "\x00\x00");
2211
2212 $WMpicture['dataoffset'] = $offset;
2213 $WMpicture['data'] = substr($data, $offset);
2214
2215 $imageinfo = array();
2216 $WMpicture['image_mime'] = '';
2217 $imagechunkcheck = getid3_lib::GetDataImageSize($WMpicture['data'], $imageinfo);
2218 unset($imageinfo);
2219 if (!empty($imagechunkcheck)) {
2220 $WMpicture['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]);
2221 }
2222 if (!isset($this->getid3->info['asf']['comments']['picture'])) {
2223 $this->getid3->info['asf']['comments']['picture'] = array();
2224 }
2225 $this->getid3->info['asf']['comments']['picture'][] = array('data'=>$WMpicture['data'], 'image_mime'=>$WMpicture['image_mime']);
2226
2227 return $WMpicture;
2228 }
2229
2230 /**
2231 * Remove terminator 00 00 and convert UTF-16LE to Latin-1.
2232 *
2233 * @param string $string
2234 *
2235 * @return string
2236 */
2237 public static function TrimConvert($string) {
2238 return trim(getid3_lib::iconv_fallback('UTF-16LE', 'ISO-8859-1', self::TrimTerm($string)), ' ');
2239 }
2240
2241 /**
2242 * Remove terminator 00 00.
2243 *
2244 * @param string $string
2245 *
2246 * @return string
2247 */
2248 public static function TrimTerm($string) {
2249 // remove terminator, only if present (it should be, but...)
2250 if (substr($string, -2) === "\x00\x00") {
2251 $string = substr($string, 0, -2);
2252 }
2253 return $string;
2254 }
2255
2256}
2257