encoding support: you can set the charset parameter for exiftool via the setOptions method

Author: Peter Frivalszky

lib/PHPExif/Adapter/Exiftool.php

@@ -39,6 +39,11 @@ class Exiftool extends AdapterAbstract
      */
     protected $numeric = true;
 
+    /**
+     * @var array
+     */
+    protected $encoding = [];
+
     /**
      * @var string
      */
@@ -75,6 +80,20 @@ public function setNumeric($numeric)
         $this->numeric = $numeric;
     }
 
+    /**
+     * @see  http://www.sno.phy.queensu.ca/~phil/exiftool/faq.html#Q10
+     * @param array $encoding encoding parameters in an array eg. ["exif" => "UTF-8"]
+     */
+    public function setEncoding($encoding) {
+        $possible_keys = array("exif", "iptc", "id3", "photoshop", "quicktime",);
+        $possible_values = array("UTF8", "cp65001", "UTF-8", "Thai", "cp874", "Latin", "cp1252", "Latin1", "MacRoman", "cp10000", "Mac", "Roman", "Latin2", "cp1250", "MacLatin2", "cp10029", "Cyrillic", "cp1251", "Russian", "MacCyrillic", "cp10007", "Greek", "cp1253", "MacGreek", "cp10006", "Turkish", "cp1254", "MacTurkish", "cp10081", "Hebrew", "cp1255", "MacRomanian", "cp10010", "Arabic", "cp1256", "MacIceland", "cp10079", "Baltic", "cp1257", "MacCroatian", "cp10082", "Vietnam", "cp1258",);
+        foreach ($encoding as $type => $encoding) {
+            if (in_array($type, $possible_keys) && in_array($encoding, $possible_values)) {
+                $this->encoding[$type] = $encoding;
+            }
+        }
+    }
+
     /**
      * Getter for the exiftool binary path
      * Lazy loads the "default" path
@@ -100,13 +119,21 @@ public function getToolPath()
      */
     public function getExifFromFile($file)
     {
+        $encoding = '';
+        if(!empty($this->encoding)) {
+            $encoding = '-charset ';
+            foreach ($this->encoding as $key => $value) {
+                $encoding .= escapeshellarg($key).'='.escapeshellarg($value);
+            }
+        }
         $result = $this->getCliOutput(
             sprintf(
-                '%1$s%3$s -j -a -G1 -c %4$s %2$s',
+                '%1$s%3$s -j -a -G1 %5$s -c %4$s %2$s',
                 $this->getToolPath(),
                 escapeshellarg($file),
                 $this->numeric ? ' -n' : '',
-                escapeshellarg('%d deg %d\' %.4f"')
+                escapeshellarg('%d deg %d\' %.4f"'),
+                $encoding
             )
         );
 

tests/PHPExif/Adapter/ExiftoolTest.php

@@ -78,6 +78,23 @@ public function testSetNumericInProperty()
         $this->assertEquals($expected, $reflProperty->getValue($this->adapter));
     }
 
+    /**
+     * @group exiftool
+     * @see URI http://www.sno.phy.queensu.ca/~phil/exiftool/faq.html#Q10
+     * @covers \PHPExif\Adapter\Exiftool::setEncoding
+     */
+    public function testSetEncodingInProperty()
+    {
+        $reflProperty = new \ReflectionProperty('\PHPExif\Adapter\Exiftool', 'encoding');
+        $reflProperty->setAccessible(true);
+
+        $expected = array('iptc' => 'cp1250');
+        $input = array('iptc' => 'cp1250', 'exif' => 'utf8', 'foo' => 'bar');
+        $this->adapter->setEncoding($input);
+
+        $this->assertEquals($expected, $reflProperty->getValue($this->adapter));
+    }
+
     /**
      * @group exiftool
      * @covers \PHPExif\Adapter\Exiftool::getExifFromFile