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[lhc/web/www.git] / www / plugins-dist / medias / lib / getid3 / module.graphic.jpg.php
1 <?php
2 /////////////////////////////////////////////////////////////////
3 /// getID3() by James Heinrich <info@getid3.org> //
4 // available at http://getid3.sourceforge.net //
5 // or http://www.getid3.org //
6 // also https://github.com/JamesHeinrich/getID3 //
7 /////////////////////////////////////////////////////////////////
8 // See readme.txt for more details //
9 /////////////////////////////////////////////////////////////////
10 // //
11 // module.graphic.jpg.php //
12 // module for analyzing JPEG Image files //
13 // dependencies: PHP compiled with --enable-exif (optional) //
14 // module.tag.xmp.php (optional) //
15 // ///
16 /////////////////////////////////////////////////////////////////
17
18
19 class getid3_jpg extends getid3_handler
20 {
21
22
23 public function Analyze() {
24 $info = &$this->getid3->info;
25
26 $info['fileformat'] = 'jpg';
27 $info['video']['dataformat'] = 'jpg';
28 $info['video']['lossless'] = false;
29 $info['video']['bits_per_sample'] = 24;
30 $info['video']['pixel_aspect_ratio'] = (float) 1;
31
32 $this->fseek($info['avdataoffset']);
33
34 $imageinfo = array();
35 //list($width, $height, $type) = getid3_lib::GetDataImageSize($this->fread($info['filesize']), $imageinfo);
36 list($width, $height, $type) = getimagesize($info['filenamepath'], $imageinfo); // http://www.getid3.org/phpBB3/viewtopic.php?t=1474
37
38
39 if (isset($imageinfo['APP13'])) {
40 // http://php.net/iptcparse
41 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
42 $iptc_parsed = iptcparse($imageinfo['APP13']);
43 if (is_array($iptc_parsed)) {
44 foreach ($iptc_parsed as $iptc_key_raw => $iptc_values) {
45 list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);
46 $iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));
47 foreach ($iptc_values as $key => $value) {
48 $IPTCrecordName = $this->IPTCrecordName($iptc_record);
49 $IPTCrecordTagName = $this->IPTCrecordTagName($iptc_record, $iptc_tagkey);
50 if (isset($info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName])) {
51 $info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName][] = $value;
52 } else {
53 $info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName] = array($value);
54 }
55 }
56 }
57 }
58 }
59
60 $returnOK = false;
61 switch ($type) {
62 case IMG_JPG:
63 $info['video']['resolution_x'] = $width;
64 $info['video']['resolution_y'] = $height;
65
66 if (isset($imageinfo['APP1'])) {
67 if (function_exists('exif_read_data')) {
68 if (substr($imageinfo['APP1'], 0, 4) == 'Exif') {
69 //$this->warning('known issue: https://bugs.php.net/bug.php?id=62523');
70 //return false;
71 set_error_handler(function($errno, $errstr, $errfile, $errline, array $errcontext) {
72 if (!(error_reporting() & $errno)) {
73 // error is not specified in the error_reporting setting, so we ignore it
74 return false;
75 }
76
77 $errcontext['info']['warning'][] = 'Error parsing EXIF data ('.$errstr.')';
78 });
79
80 $info['jpg']['exif'] = exif_read_data($info['filenamepath'], null, true, false);
81
82 restore_error_handler();
83 } else {
84 $this->warning('exif_read_data() cannot parse non-EXIF data in APP1 (expected "Exif", found "'.substr($imageinfo['APP1'], 0, 4).'")');
85 }
86 } else {
87 $this->warning('EXIF parsing only available when '.(GETID3_OS_ISWINDOWS ? 'php_exif.dll enabled' : 'compiled with --enable-exif'));
88 }
89 }
90 $returnOK = true;
91 break;
92
93 default:
94 break;
95 }
96
97
98 $cast_as_appropriate_keys = array('EXIF', 'IFD0', 'THUMBNAIL');
99 foreach ($cast_as_appropriate_keys as $exif_key) {
100 if (isset($info['jpg']['exif'][$exif_key])) {
101 foreach ($info['jpg']['exif'][$exif_key] as $key => $value) {
102 $info['jpg']['exif'][$exif_key][$key] = $this->CastAsAppropriate($value);
103 }
104 }
105 }
106
107
108 if (isset($info['jpg']['exif']['GPS'])) {
109
110 if (isset($info['jpg']['exif']['GPS']['GPSVersion'])) {
111 for ($i = 0; $i < 4; $i++) {
112 $version_subparts[$i] = ord(substr($info['jpg']['exif']['GPS']['GPSVersion'], $i, 1));
113 }
114 $info['jpg']['exif']['GPS']['computed']['version'] = 'v'.implode('.', $version_subparts);
115 }
116
117 if (isset($info['jpg']['exif']['GPS']['GPSDateStamp'])) {
118 $explodedGPSDateStamp = explode(':', $info['jpg']['exif']['GPS']['GPSDateStamp']);
119 $computed_time[5] = (isset($explodedGPSDateStamp[0]) ? $explodedGPSDateStamp[0] : '');
120 $computed_time[3] = (isset($explodedGPSDateStamp[1]) ? $explodedGPSDateStamp[1] : '');
121 $computed_time[4] = (isset($explodedGPSDateStamp[2]) ? $explodedGPSDateStamp[2] : '');
122
123 $computed_time = array(0=>0, 1=>0, 2=>0, 3=>0, 4=>0, 5=>0);
124 if (isset($info['jpg']['exif']['GPS']['GPSTimeStamp']) && is_array($info['jpg']['exif']['GPS']['GPSTimeStamp'])) {
125 foreach ($info['jpg']['exif']['GPS']['GPSTimeStamp'] as $key => $value) {
126 $computed_time[$key] = getid3_lib::DecimalizeFraction($value);
127 }
128 }
129 $info['jpg']['exif']['GPS']['computed']['timestamp'] = gmmktime($computed_time[0], $computed_time[1], $computed_time[2], $computed_time[3], $computed_time[4], $computed_time[5]);
130 }
131
132 if (isset($info['jpg']['exif']['GPS']['GPSLatitude']) && is_array($info['jpg']['exif']['GPS']['GPSLatitude'])) {
133 $direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLatitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLatitudeRef'] == 'S')) ? -1 : 1);
134 foreach ($info['jpg']['exif']['GPS']['GPSLatitude'] as $key => $value) {
135 $computed_latitude[$key] = getid3_lib::DecimalizeFraction($value);
136 }
137 $info['jpg']['exif']['GPS']['computed']['latitude'] = $direction_multiplier * ($computed_latitude[0] + ($computed_latitude[1] / 60) + ($computed_latitude[2] / 3600));
138 }
139
140 if (isset($info['jpg']['exif']['GPS']['GPSLongitude']) && is_array($info['jpg']['exif']['GPS']['GPSLongitude'])) {
141 $direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLongitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLongitudeRef'] == 'W')) ? -1 : 1);
142 foreach ($info['jpg']['exif']['GPS']['GPSLongitude'] as $key => $value) {
143 $computed_longitude[$key] = getid3_lib::DecimalizeFraction($value);
144 }
145 $info['jpg']['exif']['GPS']['computed']['longitude'] = $direction_multiplier * ($computed_longitude[0] + ($computed_longitude[1] / 60) + ($computed_longitude[2] / 3600));
146 }
147 if (isset($info['jpg']['exif']['GPS']['GPSAltitudeRef'])) {
148 $info['jpg']['exif']['GPS']['GPSAltitudeRef'] = ord($info['jpg']['exif']['GPS']['GPSAltitudeRef']); // 0 = above sea level; 1 = below sea level
149 }
150 if (isset($info['jpg']['exif']['GPS']['GPSAltitude'])) {
151 $direction_multiplier = (!empty($info['jpg']['exif']['GPS']['GPSAltitudeRef']) ? -1 : 1); // 0 = above sea level; 1 = below sea level
152 $info['jpg']['exif']['GPS']['computed']['altitude'] = $direction_multiplier * getid3_lib::DecimalizeFraction($info['jpg']['exif']['GPS']['GPSAltitude']);
153 }
154
155 }
156
157
158 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.xmp.php', __FILE__, true);
159 if (isset($info['filenamepath'])) {
160 $image_xmp = new Image_XMP($info['filenamepath']);
161 $xmp_raw = $image_xmp->getAllTags();
162 foreach ($xmp_raw as $key => $value) {
163 if (strpos($key, ':')) {
164 list($subsection, $tagname) = explode(':', $key);
165 $info['xmp'][$subsection][$tagname] = $this->CastAsAppropriate($value);
166 } else {
167 $this->warning('XMP: expecting "<subsection>:<tagname>", found "'.$key.'"');
168 }
169 }
170 }
171
172 if (!$returnOK) {
173 unset($info['fileformat']);
174 return false;
175 }
176 return true;
177 }
178
179
180 public function CastAsAppropriate($value) {
181 if (is_array($value)) {
182 return $value;
183 } elseif (preg_match('#^[0-9]+/[0-9]+$#', $value)) {
184 return getid3_lib::DecimalizeFraction($value);
185 } elseif (preg_match('#^[0-9]+$#', $value)) {
186 return getid3_lib::CastAsInt($value);
187 } elseif (preg_match('#^[0-9\.]+$#', $value)) {
188 return (float) $value;
189 }
190 return $value;
191 }
192
193
194 public function IPTCrecordName($iptc_record) {
195 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
196 static $IPTCrecordName = array();
197 if (empty($IPTCrecordName)) {
198 $IPTCrecordName = array(
199 1 => 'IPTCEnvelope',
200 2 => 'IPTCApplication',
201 3 => 'IPTCNewsPhoto',
202 7 => 'IPTCPreObjectData',
203 8 => 'IPTCObjectData',
204 9 => 'IPTCPostObjectData',
205 );
206 }
207 return (isset($IPTCrecordName[$iptc_record]) ? $IPTCrecordName[$iptc_record] : '');
208 }
209
210
211 public function IPTCrecordTagName($iptc_record, $iptc_tagkey) {
212 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
213 static $IPTCrecordTagName = array();
214 if (empty($IPTCrecordTagName)) {
215 $IPTCrecordTagName = array(
216 1 => array( // IPTC EnvelopeRecord Tags
217 0 => 'EnvelopeRecordVersion',
218 5 => 'Destination',
219 20 => 'FileFormat',
220 22 => 'FileVersion',
221 30 => 'ServiceIdentifier',
222 40 => 'EnvelopeNumber',
223 50 => 'ProductID',
224 60 => 'EnvelopePriority',
225 70 => 'DateSent',
226 80 => 'TimeSent',
227 90 => 'CodedCharacterSet',
228 100 => 'UniqueObjectName',
229 120 => 'ARMIdentifier',
230 122 => 'ARMVersion',
231 ),
232 2 => array( // IPTC ApplicationRecord Tags
233 0 => 'ApplicationRecordVersion',
234 3 => 'ObjectTypeReference',
235 4 => 'ObjectAttributeReference',
236 5 => 'ObjectName',
237 7 => 'EditStatus',
238 8 => 'EditorialUpdate',
239 10 => 'Urgency',
240 12 => 'SubjectReference',
241 15 => 'Category',
242 20 => 'SupplementalCategories',
243 22 => 'FixtureIdentifier',
244 25 => 'Keywords',
245 26 => 'ContentLocationCode',
246 27 => 'ContentLocationName',
247 30 => 'ReleaseDate',
248 35 => 'ReleaseTime',
249 37 => 'ExpirationDate',
250 38 => 'ExpirationTime',
251 40 => 'SpecialInstructions',
252 42 => 'ActionAdvised',
253 45 => 'ReferenceService',
254 47 => 'ReferenceDate',
255 50 => 'ReferenceNumber',
256 55 => 'DateCreated',
257 60 => 'TimeCreated',
258 62 => 'DigitalCreationDate',
259 63 => 'DigitalCreationTime',
260 65 => 'OriginatingProgram',
261 70 => 'ProgramVersion',
262 75 => 'ObjectCycle',
263 80 => 'By-line',
264 85 => 'By-lineTitle',
265 90 => 'City',
266 92 => 'Sub-location',
267 95 => 'Province-State',
268 100 => 'Country-PrimaryLocationCode',
269 101 => 'Country-PrimaryLocationName',
270 103 => 'OriginalTransmissionReference',
271 105 => 'Headline',
272 110 => 'Credit',
273 115 => 'Source',
274 116 => 'CopyrightNotice',
275 118 => 'Contact',
276 120 => 'Caption-Abstract',
277 121 => 'LocalCaption',
278 122 => 'Writer-Editor',
279 125 => 'RasterizedCaption',
280 130 => 'ImageType',
281 131 => 'ImageOrientation',
282 135 => 'LanguageIdentifier',
283 150 => 'AudioType',
284 151 => 'AudioSamplingRate',
285 152 => 'AudioSamplingResolution',
286 153 => 'AudioDuration',
287 154 => 'AudioOutcue',
288 184 => 'JobID',
289 185 => 'MasterDocumentID',
290 186 => 'ShortDocumentID',
291 187 => 'UniqueDocumentID',
292 188 => 'OwnerID',
293 200 => 'ObjectPreviewFileFormat',
294 201 => 'ObjectPreviewFileVersion',
295 202 => 'ObjectPreviewData',
296 221 => 'Prefs',
297 225 => 'ClassifyState',
298 228 => 'SimilarityIndex',
299 230 => 'DocumentNotes',
300 231 => 'DocumentHistory',
301 232 => 'ExifCameraInfo',
302 ),
303 3 => array( // IPTC NewsPhoto Tags
304 0 => 'NewsPhotoVersion',
305 10 => 'IPTCPictureNumber',
306 20 => 'IPTCImageWidth',
307 30 => 'IPTCImageHeight',
308 40 => 'IPTCPixelWidth',
309 50 => 'IPTCPixelHeight',
310 55 => 'SupplementalType',
311 60 => 'ColorRepresentation',
312 64 => 'InterchangeColorSpace',
313 65 => 'ColorSequence',
314 66 => 'ICC_Profile',
315 70 => 'ColorCalibrationMatrix',
316 80 => 'LookupTable',
317 84 => 'NumIndexEntries',
318 85 => 'ColorPalette',
319 86 => 'IPTCBitsPerSample',
320 90 => 'SampleStructure',
321 100 => 'ScanningDirection',
322 102 => 'IPTCImageRotation',
323 110 => 'DataCompressionMethod',
324 120 => 'QuantizationMethod',
325 125 => 'EndPoints',
326 130 => 'ExcursionTolerance',
327 135 => 'BitsPerComponent',
328 140 => 'MaximumDensityRange',
329 145 => 'GammaCompensatedValue',
330 ),
331 7 => array( // IPTC PreObjectData Tags
332 10 => 'SizeMode',
333 20 => 'MaxSubfileSize',
334 90 => 'ObjectSizeAnnounced',
335 95 => 'MaximumObjectSize',
336 ),
337 8 => array( // IPTC ObjectData Tags
338 10 => 'SubFile',
339 ),
340 9 => array( // IPTC PostObjectData Tags
341 10 => 'ConfirmedObjectSize',
342 ),
343 );
344
345 }
346 return (isset($IPTCrecordTagName[$iptc_record][$iptc_tagkey]) ? $IPTCrecordTagName[$iptc_record][$iptc_tagkey] : $iptc_tagkey);
347 }
348
349 }
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