ILIAS  release_5-2 Revision v5.2.25-18-g3f80b828510
Public Member Functions
GetId3\Module\Graphic\Jpg Class Reference

GetId3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g //. More...

+ Inheritance diagram for GetId3\Module\Graphic\Jpg:
+ Collaboration diagram for GetId3\Module\Graphic\Jpg:

Public Member Functions

 analyze ()
 
 CastAsAppropriate ($value)
 
 IPTCrecordName ($iptc_record)
 @staticvar array $IPTCrecordName More...
 
 IPTCrecordTagName ($iptc_record, $iptc_tagkey)
 @staticvar array $IPTCrecordTagName More...
 
- Public Member Functions inherited from GetId3\Handler\BaseHandler
 __construct (GetId3Core $getid3, $call_module=null)
 
 analyze ()
 Analyze from file pointer. More...
 
 AnalyzeString (&$string)
 Analyze from string instead. More...
 
 saveAttachment (&$ThisFileInfoIndex, $filename, $offset, $length)
 

Additional Inherited Members

- Protected Member Functions inherited from GetId3\Handler\BaseHandler
 ftell ()
 
 fread ($bytes)
 
 fseek ($bytes, $whence=SEEK_SET)
 
 feof ()
 
 isDependencyFor ($module)
 
 error ($text)
 
 warning ($text)
 
- Protected Attributes inherited from GetId3\Handler\BaseHandler
 $getid3
 
 $data_string_flag = false
 
 $data_string = ''
 
 $data_string_position = 0
 
 $data_string_length = 0
 

Detailed Description

GetId3() by James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g //.

module for analyzing JPEG Image files

Author
James Heinrich info@.nosp@m.geti.nosp@m.d3.or.nosp@m.g http://www.getid3.org GetId3 (optional) ext-exif (optional)

Definition at line 34 of file Jpg.php.

Member Function Documentation

◆ analyze()

GetId3\Module\Graphic\Jpg::analyze ( )
Returns
boolean

Reimplemented from GetId3\Handler\BaseHandler.

Definition at line 41 of file Jpg.php.

42 {
43 $info = &$this->getid3->info;
44
45 $info['fileformat'] = 'jpg';
46 $info['video']['dataformat'] = 'jpg';
47 $info['video']['lossless'] = false;
48 $info['video']['bits_per_sample'] = 24;
49 $info['video']['pixel_aspect_ratio'] = (float) 1;
50
51 fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
52
53 $imageinfo = array();
54 list($width, $height, $type) = Helper::GetDataImageSize(fread($this->getid3->fp, $info['filesize']), $imageinfo);
55
56 if (isset($imageinfo['APP13'])) {
57 // http://php.net/iptcparse
58 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
59 $iptc_parsed = iptcparse($imageinfo['APP13']);
60 if (is_array($iptc_parsed)) {
61 foreach ($iptc_parsed as $iptc_key_raw => $iptc_values) {
62 list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);
63 $iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));
64 foreach ($iptc_values as $key => $value) {
65 $IPTCrecordName = $this->IPTCrecordName($iptc_record);
66 $IPTCrecordTagName = $this->IPTCrecordTagName($iptc_record, $iptc_tagkey);
67 if (isset($info['iptc'][$IPTCrecordName][$IPTCrecordTagName])) {
68 $info['iptc'][$IPTCrecordName][$IPTCrecordTagName][] = $value;
69 } else {
70 $info['iptc'][$IPTCrecordName][$IPTCrecordTagName] = array($value);
71 }
72 }
73 }
74 }
75 }
76
77 $returnOK = false;
78 switch ($type) {
79 case IMG_JPG:
80 $info['video']['resolution_x'] = $width;
81 $info['video']['resolution_y'] = $height;
82
83 if (isset($imageinfo['APP1'])) {
84 if (function_exists('exif_read_data')) {
85 if (substr($imageinfo['APP1'], 0, 4) == 'Exif') {
86 $info['jpg']['exif'] = @exif_read_data($info['filenamepath'], '', true, false);
87 } else {
88 $info['warning'][] = 'exif_read_data() cannot parse non-EXIF data in APP1 (expected "Exif", found "'.substr($imageinfo['APP1'], 0, 4).'")';
89 }
90 } else {
91 $info['warning'][] = 'EXIF parsing only available when '.(GetId3Core::environmentIsWindows() ? 'php_exif.dll enabled' : 'compiled with --enable-exif');
92 }
93 }
94 $returnOK = true;
95 break;
96
97 default:
98 break;
99 }
100
101 $cast_as_appropriate_keys = array('EXIF', 'IFD0', 'THUMBNAIL');
102 foreach ($cast_as_appropriate_keys as $exif_key) {
103 if (isset($info['jpg']['exif'][$exif_key])) {
104 foreach ($info['jpg']['exif'][$exif_key] as $key => $value) {
105 $info['jpg']['exif'][$exif_key][$key] = $this->CastAsAppropriate($value);
106 }
107 }
108 }
109
110 if (isset($info['jpg']['exif']['GPS'])) {
111
112 if (isset($info['jpg']['exif']['GPS']['GPSVersion'])) {
113 for ($i = 0; $i < 4; $i++) {
114 $version_subparts[$i] = ord(substr($info['jpg']['exif']['GPS']['GPSVersion'], $i, 1));
115 }
116 $info['jpg']['exif']['GPS']['computed']['version'] = 'v'.implode('.', $version_subparts);
117 }
118
119 if (isset($info['jpg']['exif']['GPS']['GPSDateStamp'])) {
120 $explodedGPSDateStamp = explode(':', $info['jpg']['exif']['GPS']['GPSDateStamp']);
121 $computed_time[5] = (isset($explodedGPSDateStamp[0]) ? $explodedGPSDateStamp[0] : '');
122 $computed_time[3] = (isset($explodedGPSDateStamp[1]) ? $explodedGPSDateStamp[1] : '');
123 $computed_time[4] = (isset($explodedGPSDateStamp[2]) ? $explodedGPSDateStamp[2] : '');
124
125 if (function_exists('date_default_timezone_set')) {
126 date_default_timezone_set('UTC');
127 } else {
128 ini_set('date.timezone', 'UTC');
129 }
130
131 $computed_time = array(0=>0, 1=>0, 2=>0, 3=>0, 4=>0, 5=>0);
132 if (isset($info['jpg']['exif']['GPS']['GPSTimeStamp']) && is_array($info['jpg']['exif']['GPS']['GPSTimeStamp'])) {
133 foreach ($info['jpg']['exif']['GPS']['GPSTimeStamp'] as $key => $value) {
134 $computed_time[$key] = Helper::DecimalizeFraction($value);
135 }
136 }
137 $info['jpg']['exif']['GPS']['computed']['timestamp'] = mktime($computed_time[0], $computed_time[1], $computed_time[2], $computed_time[3], $computed_time[4], $computed_time[5]);
138 }
139
140 if (isset($info['jpg']['exif']['GPS']['GPSLatitude']) && is_array($info['jpg']['exif']['GPS']['GPSLatitude'])) {
141 $direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLatitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLatitudeRef'] == 'S')) ? -1 : 1);
142 foreach ($info['jpg']['exif']['GPS']['GPSLatitude'] as $key => $value) {
143 $computed_latitude[$key] = Helper::DecimalizeFraction($value);
144 }
145 $info['jpg']['exif']['GPS']['computed']['latitude'] = $direction_multiplier * ($computed_latitude[0] + ($computed_latitude[1] / 60) + ($computed_latitude[2] / 3600));
146 }
147
148 if (isset($info['jpg']['exif']['GPS']['GPSLongitude']) && is_array($info['jpg']['exif']['GPS']['GPSLongitude'])) {
149 $direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLongitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLongitudeRef'] == 'W')) ? -1 : 1);
150 foreach ($info['jpg']['exif']['GPS']['GPSLongitude'] as $key => $value) {
151 $computed_longitude[$key] = Helper::DecimalizeFraction($value);
152 }
153 $info['jpg']['exif']['GPS']['computed']['longitude'] = $direction_multiplier * ($computed_longitude[0] + ($computed_longitude[1] / 60) + ($computed_longitude[2] / 3600));
154 }
155
156 if (isset($info['jpg']['exif']['GPS']['GPSAltitude'])) {
157 $direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSAltitudeRef']) && ($info['jpg']['exif']['GPS']['GPSAltitudeRef'] === chr(1))) ? -1 : 1);
158 $info['jpg']['exif']['GPS']['computed']['altitude'] = $direction_multiplier * Helper::DecimalizeFraction($info['jpg']['exif']['GPS']['GPSAltitude']);
159 }
160
161 }
162
163 if (class_exists('GetId3\\Module\\Tag\\Xmp')) {
164 if (isset($info['filenamepath'])) {
165 $image_xmp = new Xmp($info['filenamepath']);
166 $xmp_raw = $image_xmp->getAllTags();
167 foreach ($xmp_raw as $key => $value) {
168 list($subsection, $tagname) = explode(':', $key);
169 $info['xmp'][$subsection][$tagname] = $this->CastAsAppropriate($value);
170 }
171 }
172 }
173
174 if (!$returnOK) {
175 unset($info['fileformat']);
176
177 return false;
178 }
179
180 return true;
181 }
GetId3\Handler\BaseHandler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: BaseHandler.php:148
GetId3\Lib\Helper\DecimalizeFraction
static DecimalizeFraction($fraction)
Definition: Helper.php:153
GetId3\Lib\Helper\GetDataImageSize
static GetDataImageSize($imgData, &$imageinfo)
@staticvar string $tempdir
Definition: Helper.php:1622
GetId3\Module\Graphic\Jpg\IPTCrecordTagName
IPTCrecordTagName($iptc_record, $iptc_tagkey)
@staticvar array $IPTCrecordTagName
Definition: Jpg.php:235
GetId3\Module\Graphic\Jpg\IPTCrecordName
IPTCrecordName($iptc_record)
@staticvar array $IPTCrecordName
Definition: Jpg.php:209
GetId3\Module\Graphic\Jpg\CastAsAppropriate
CastAsAppropriate($value)
Definition: Jpg.php:188
$info
$info
Definition: example_052.php:80

References $info, GetId3\Module\Graphic\Jpg\CastAsAppropriate(), GetId3\Lib\Helper\DecimalizeFraction(), GetId3\Handler\BaseHandler\fread(), GetId3\Handler\BaseHandler\fseek(), GetId3\Lib\Helper\GetDataImageSize(), GetId3\Module\Graphic\Jpg\IPTCrecordName(), and GetId3\Module\Graphic\Jpg\IPTCrecordTagName().

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◆ CastAsAppropriate()

GetId3\Module\Graphic\Jpg::CastAsAppropriate (   $value)
Parameters
type$value
Returns
type

Definition at line 188 of file Jpg.php.

189 {
190 if (is_array($value)) {
191 return $value;
192 } elseif (preg_match('#^[0-9]+/[0-9]+$#', $value)) {
193 return Helper::DecimalizeFraction($value);
194 } elseif (preg_match('#^[0-9]+$#', $value)) {
195 return Helper::CastAsInt($value);
196 } elseif (preg_match('#^[0-9\.]+$#', $value)) {
197 return (float) $value;
198 }
199
200 return $value;
201 }
GetId3\Lib\Helper\CastAsInt
static CastAsInt($floatnum)
Definition: Helper.php:107

References GetId3\Lib\Helper\CastAsInt(), and GetId3\Lib\Helper\DecimalizeFraction().

Referenced by GetId3\Module\Graphic\Jpg\analyze().

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◆ IPTCrecordName()

GetId3\Module\Graphic\Jpg::IPTCrecordName (   $iptc_record)

@staticvar array $IPTCrecordName

Parameters
type$iptc_record
Returns
type

Definition at line 209 of file Jpg.php.

210 {
211 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
212 static $IPTCrecordName = array();
213 if (empty($IPTCrecordName)) {
214 $IPTCrecordName = array(
215 1 => 'IPTCEnvelope',
216 2 => 'IPTCApplication',
217 3 => 'IPTCNewsPhoto',
218 7 => 'IPTCPreObjectData',
219 8 => 'IPTCObjectData',
220 9 => 'IPTCPostObjectData',
221 );
222 }
223
224 return (isset($IPTCrecordName[$iptc_record]) ? $IPTCrecordName[$iptc_record] : '');
225 }

Referenced by GetId3\Module\Graphic\Jpg\analyze().

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◆ IPTCrecordTagName()

GetId3\Module\Graphic\Jpg::IPTCrecordTagName (   $iptc_record,
  $iptc_tagkey 
)

@staticvar array $IPTCrecordTagName

Parameters
type$iptc_record
type$iptc_tagkey
Returns
type http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html

Definition at line 235 of file Jpg.php.

236 {
237 static $IPTCrecordTagName = array();
238 if (empty($IPTCrecordTagName)) {
239 $IPTCrecordTagName = array(
240 1 => array( // IPTC EnvelopeRecord Tags
241 0 => 'EnvelopeRecordVersion',
242 5 => 'Destination',
243 20 => 'FileFormat',
244 22 => 'FileVersion',
245 30 => 'ServiceIdentifier',
246 40 => 'EnvelopeNumber',
247 50 => 'ProductID',
248 60 => 'EnvelopePriority',
249 70 => 'DateSent',
250 80 => 'TimeSent',
251 90 => 'CodedCharacterSet',
252 100 => 'UniqueObjectName',
253 120 => 'ARMIdentifier',
254 122 => 'ARMVersion',
255 ),
256 2 => array( // IPTC ApplicationRecord Tags
257 0 => 'ApplicationRecordVersion',
258 3 => 'ObjectTypeReference',
259 4 => 'ObjectAttributeReference',
260 5 => 'ObjectName',
261 7 => 'EditStatus',
262 8 => 'EditorialUpdate',
263 10 => 'Urgency',
264 12 => 'SubjectReference',
265 15 => 'Category',
266 20 => 'SupplementalCategories',
267 22 => 'FixtureIdentifier',
268 25 => 'Keywords',
269 26 => 'ContentLocationCode',
270 27 => 'ContentLocationName',
271 30 => 'ReleaseDate',
272 35 => 'ReleaseTime',
273 37 => 'ExpirationDate',
274 38 => 'ExpirationTime',
275 40 => 'SpecialInstructions',
276 42 => 'ActionAdvised',
277 45 => 'ReferenceService',
278 47 => 'ReferenceDate',
279 50 => 'ReferenceNumber',
280 55 => 'DateCreated',
281 60 => 'TimeCreated',
282 62 => 'DigitalCreationDate',
283 63 => 'DigitalCreationTime',
284 65 => 'OriginatingProgram',
285 70 => 'ProgramVersion',
286 75 => 'ObjectCycle',
287 80 => 'By-line',
288 85 => 'By-lineTitle',
289 90 => 'City',
290 92 => 'Sub-location',
291 95 => 'Province-State',
292 100 => 'Country-PrimaryLocationCode',
293 101 => 'Country-PrimaryLocationName',
294 103 => 'OriginalTransmissionReference',
295 105 => 'Headline',
296 110 => 'Credit',
297 115 => 'Source',
298 116 => 'CopyrightNotice',
299 118 => 'Contact',
300 120 => 'Caption-Abstract',
301 121 => 'LocalCaption',
302 122 => 'Writer-Editor',
303 125 => 'RasterizedCaption',
304 130 => 'ImageType',
305 131 => 'ImageOrientation',
306 135 => 'LanguageIdentifier',
307 150 => 'AudioType',
308 151 => 'AudioSamplingRate',
309 152 => 'AudioSamplingResolution',
310 153 => 'AudioDuration',
311 154 => 'AudioOutcue',
312 184 => 'JobID',
313 185 => 'MasterDocumentID',
314 186 => 'ShortDocumentID',
315 187 => 'UniqueDocumentID',
316 188 => 'OwnerID',
317 200 => 'ObjectPreviewFileFormat',
318 201 => 'ObjectPreviewFileVersion',
319 202 => 'ObjectPreviewData',
320 221 => 'Prefs',
321 225 => 'ClassifyState',
322 228 => 'SimilarityIndex',
323 230 => 'DocumentNotes',
324 231 => 'DocumentHistory',
325 232 => 'ExifCameraInfo',
326 ),
327 3 => array( // IPTC NewsPhoto Tags
328 0 => 'NewsPhotoVersion',
329 10 => 'IPTCPictureNumber',
330 20 => 'IPTCImageWidth',
331 30 => 'IPTCImageHeight',
332 40 => 'IPTCPixelWidth',
333 50 => 'IPTCPixelHeight',
334 55 => 'SupplementalType',
335 60 => 'ColorRepresentation',
336 64 => 'InterchangeColorSpace',
337 65 => 'ColorSequence',
338 66 => 'ICC_Profile',
339 70 => 'ColorCalibrationMatrix',
340 80 => 'LookupTable',
341 84 => 'NumIndexEntries',
342 85 => 'ColorPalette',
343 86 => 'IPTCBitsPerSample',
344 90 => 'SampleStructure',
345 100 => 'ScanningDirection',
346 102 => 'IPTCImageRotation',
347 110 => 'DataCompressionMethod',
348 120 => 'QuantizationMethod',
349 125 => 'EndPoints',
350 130 => 'ExcursionTolerance',
351 135 => 'BitsPerComponent',
352 140 => 'MaximumDensityRange',
353 145 => 'GammaCompensatedValue',
354 ),
355 7 => array( // IPTC PreObjectData Tags
356 10 => 'SizeMode',
357 20 => 'MaxSubfileSize',
358 90 => 'ObjectSizeAnnounced',
359 95 => 'MaximumObjectSize',
360 ),
361 8 => array( // IPTC ObjectData Tags
362 10 => 'SubFile',
363 ),
364 9 => array( // IPTC PostObjectData Tags
365 10 => 'ConfirmedObjectSize',
366 ),
367 );
368
369 }
370
371 return (isset($IPTCrecordTagName[$iptc_record][$iptc_tagkey]) ? $IPTCrecordTagName[$iptc_record][$iptc_tagkey] : $iptc_tagkey);
372 }

Referenced by GetId3\Module\Graphic\Jpg\analyze().

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