$OpenBSD: patch-include_mediafmt_h,v 1.1 2008/03/15 17:38:43 ajacoutot Exp $
--- include/mediafmt.h.orig	Wed Nov 30 14:05:01 2005
+++ include/mediafmt.h	Mon Mar  3 17:57:12 2008
@@ -163,9 +163,13 @@ class OpalMediaFormat : public PCaselessString
     RTP_DataFrame::PayloadTypes GetPayloadType() const { return rtpPayloadType; }
 
     enum {
-      DefaultAudioSessionID = 1,
-      DefaultVideoSessionID = 2,
-      DefaultDataSessionID  = 3
+      FirstSessionID            = 1,
+      DefaultAudioSessionID     = 1,
+      DefaultVideoSessionID     = 2,
+      DefaultDataSessionID      = 3,
+      DefaultH224SessionID      = 4,
+      DefaultExtVideoSessionID  = 5,
+      LastSessionID             = 5
     };
 
     /**Get the default session ID for media format.
