From 6db72d46c4c014dbd379899855d09a7b5810630c Mon Sep 17 00:00:00 2001
From: Joe Lapp <joe.lapp@pobox.com>
Date: Tue, 23 Aug 2005 18:42:04 +0200
Subject: added simple.shutterspeed to JpegMeta

darcs-hash:20050823164204-46f60-5c79fbd04d9bc5ce4a6dad13f93b8383d9fd8b77.gz
---
 inc/JpegMeta.php | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'inc/JpegMeta.php')

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);
             }
@@ -248,6 +250,25 @@ class JpegMeta
         return $cam;
     }
 
+    /**
+     * 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
      *
-- 
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