From bda141ad119b7d382a8689182edd80aa603c2442 Mon Sep 17 00:00:00 2001
From: Cash Costello <cash.costello@gmail.com>
Date: Sun, 21 Jun 2009 12:41:09 +0000
Subject: improved exif code

---
 lib/exif.php | 104 +++++++++++++++++++++++++++--------------------------------
 1 file changed, 47 insertions(+), 57 deletions(-)

(limited to 'lib')

diff --git a/lib/exif.php b/lib/exif.php
index 5382fbc9f..9d5ae6343 100644
--- a/lib/exif.php
+++ b/lib/exif.php
@@ -14,72 +14,62 @@ function td_get_exif($file) {
 function tp_exif_formatted($file_guid) {
 
 	$metadata_exif = get_metadata_byname($file_guid, "tp_exif");
-	if(!$metadata_exif) { //try to load it from the file if its not in the database
+	if (!$metadata_exif) { //try to load it from the file if its not in the database
 		$file = new ElggFile($file_guid);
 		td_get_exif($file);
 		unset($file);
 		$metadata_exif = get_metadata_byname($file_guid, "tp_exif");
 	}
 	
-	if($metadata_exif) {
+	if (!$metadata_exif) {
+		return false;
+	}
+
+	$exif = unserialize($metadata_exif["value"]);
+	
+	$model = $exif['Model'];
+	if(!$model) $model = "N/A";
+	$exif_data['Model'] = $model;
 
-		$exif = unserialize($metadata_exif["value"]);
-		
-		//got the code snippet below from http://www.zenphoto.org/support/topic.php?id=17
-		//convert the raw values to understandible values
-		$Fnumber = explode("/", $exif['FNumber']);
-		
-		if ($Fnumber[1] != 0)
-			$Fnumber = $Fnumber[0] / $Fnumber[1];
-		else
-			$Fnumber = 0;
-		
-		if(!$Fnumber) {
-			$Fnumber = "N/A";
-		} else {
-			$Fnumber = "f/$Fnumber";
-		}
-		
-		$Focal = explode("/", $exif['FocalLength']);
-		if ($Focal[1] != 0)
-			$Focal = $Focal[0] / $Focal[1];
-		else
-			$Focal = 0;
-		if(!$Focal || round($Focal) == "0") $Focal = 0;
-		if(round($Focal) == 0) {
-			$Focal = "N/A";
-		} else {
-			$Focal = round($Focal) . "mm";
-		}
+	$exposure = $exif['ExposureTime'];
+	if (!$exposure) $exposure = "N/A";
+	$exif_data['Shutter'] = $exposure;
 
-		$model = $exif['Model'];
-		if(!$model) $model = "N/A";
-		
-		$exposure = $exif['ExposureTime'];
-		if(!$exposure) $exposure = "N/A";
-		
-		$iso = $exif['ISOSpeedRatings'];
-		if(!$iso) $iso = "N/A";
-		
-		$captured = $exif['DateTime'];
-		if(!$captured) $captured = "N/A";
-		
-		//prepare the text for return
-		
-		$exif_text = "Model: ".$model."<br>";
-		$exif_text .= "Shutter: ".$exposure."<br>";
-		$exif_text .= "Aperture: ".$Fnumber."<br>";
-		$exif_text .= "ISO Speed: ".$iso."<br>";
-		if(round($Focal) == 0) {
-			$exif_text .= "Focal Length: N/A<br>";
-		} else {
-			$exif_text .= "Focal Length: " . round($Focal) . "mm<br />";
-		}
-		$exif_text .= "Captured: ". $captured;
-		
-		return $exif_text;
+	//got the code snippet below from http://www.zenphoto.org/support/topic.php?id=17
+	//convert the raw values to understandible values
+	$Fnumber = explode("/", $exif['FNumber']);
+	if ($Fnumber[1] != 0)
+		$Fnumber = $Fnumber[0] / $Fnumber[1];
+	else
+		$Fnumber = 0;
+	if (!$Fnumber) {
+		$Fnumber = "N/A";
 	} else {
-		return false;
+		$Fnumber = "f/$Fnumber";
 	}
+	$exif_data['Aperture'] = $Fnumber;
+
+	$iso = $exif['ISOSpeedRatings'];
+	if (!$iso) $iso = "N/A";
+	$exif_data['ISO Speed'] = $iso;
+
+	$Focal = explode("/", $exif['FocalLength']);
+	if ($Focal[1] != 0)
+		$Focal = $Focal[0] / $Focal[1];
+	else
+		$Focal = 0;
+	if (!$Focal || round($Focal) == "0") $Focal = 0;
+	if (round($Focal) == 0) {
+		$Focal = "N/A";
+	} else {
+		$Focal = round($Focal) . "mm";
+	}
+	$exif_data['Focal Length'] = $Focal;
+
+	$captured = $exif['DateTime'];
+	if (!$captured) $captured = "N/A";
+	$exif_data['Captured'] = $captured;
+
+	return $exif_data;
 }
 ?>
\ No newline at end of file
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