override isMetadataValid() so that we don't regenerate GIF metadata every time

diff --git a/includes/media/GIF.php b/includes/media/GIF.php
index dbe5f81..5d1f9db 100644 (file)
--- a/includes/media/GIF.php
+++ b/includes/media/GIF.php
@@ -44,6 +44,11 @@ class GIFHandler extends BitmapHandler {
                return 'parsed-gif';
        }
        
+       function isMetadataValid( $image, $metadata ) {
+               $data = @unserialize( $metadata );
+               return (boolean) $data;
+       }
+
        function getLongDesc( $image ) {
                global $wgUser, $wgLang;
                $sk = $wgUser->getSkin();