--- ffmpeg_wrapper2/ffmpeg_wrapper.module	2011-01-20 11:01:10.000000000 -0500
+++ ffmpeg_wrapper/ffmpeg_wrapper.module	2011-07-15 16:13:49.000000000 -0400
@@ -618,6 +618,9 @@
     // add the output file
     $options[] = "'". $destination ."'";
   }
+  
+  $ffmpeg->input_file = $params['source'];
+  $ffmpeg->output_file = $destination;
   // Run the command
   $ffmpeg->command(implode(" ", $options));
   return $ffmpeg;