added simple.shutterspeed to JpegMeta

darcs-hash:20050823164204-46f60-5c79fbd04d9bc5ce4a6dad13f93b8383d9fd8b77.gz

1 files changed, 21 insertions, 0 deletions

diff --git a/inc/JpegMeta.php b/inc/JpegMeta.php
index 1e2748975..957d03671 100644
--- a/inc/JpegMeta.php
+++ b/inc/JpegMeta.php
@@ -147,6 +147,8 @@ class JpegMeta
                 return $this->getRawInfo();
             }elseif(strtolower($field) == 'simple.title'){
                 $info = $this->getTitle();
+            }elseif(strtolower($field) == 'simple.shutterspeed'){
+                $info = $this->getShutterSpeed();
             }else{
                 $info = $this->getExifField($field);
             }
@@ -249,6 +251,25 @@ class JpegMeta
     }
 
     /**
+     * Return shutter speed as a ratio
+     *
+     * @author Joe Lapp <joe.lapp@pobox.com>
+     */
+    function getShutterSpeed()
+    {
+        if (!isset($this->_info['exif'])) {
+            $this->_parseMarkerExif();
+        }
+        if(!isset($this->_info['exif']['ExposureTime'])){
+            return '';
+        }
+
+        $field = $this->_info['exif']['ExposureTime'];
+        if($field['den'] == 1) return $field['num'];
+        return $field['num'].'/'.$field['den'];
+    }
+
+    /**
      * Return an EXIF field
      *
      * @author Sebastian Delmont <sdelmont@zonageek.com>