client.rb in rtsp-0.2.0

- old
+ new

@@ -103,11 +103,14 @@
     # @yieldparam [Struct::Connection] interleave=
     # @todo Use server_url everywhere; just use URI to ensure the port & rtspu.
     def initialize(server_url=nil)
       Thread.abort_on_exception = true
 
-      Struct.new("Connection", :server_url, :timeout, :socket,
+      unless defined? Struct::Connection
+        Struct.new("Connection", :server_url, :timeout, :socket,
           :do_capture, :interleave)
+      end
+
       @connection = Struct::Connection.new
       @capturer   = RTSP::Capturer.new
 
       yield(connection, capturer) if block_given?
 