Update transcoder.rb

See ruby-av#58

Author: slaur

lib/paperclip/paperclip_processors/transcoder.rb

@@ -50,7 +50,6 @@ def make
       if @meta
         log "Transcoding supported file #{@file.path}"
         @cli.add_source(@file.path)
-        @cli.add_destination(dst.path)
         @cli.reset_input_filters
 
         if output_is_image?
@@ -71,7 +70,9 @@ def make
             end
           end
         end
-
+        
+        @cli.add_destination(dst.path)
+        
         begin
           @cli.run
           log "Successfully transcoded #{@basename} to #{dst}"