diff -r 000000000000 -r bde4ae8d615e os/mm/mdfdevvideoextensions/nga_mdf_postprocessor_shai/inc/NGAPostProcSessionManagerObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/mm/mdfdevvideoextensions/nga_mdf_postprocessor_shai/inc/NGAPostProcSessionManagerObserver.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,41 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+#ifndef __NGAPOSTPROCSESSIONMANAGEROBSERVER_H__
+#define __NGAPOSTPROCSESSIONMANAGEROBSERVER_H__
+
+/**
+@internal
+
+The class is a mixin and is intended to support for communicating buffers availablity 
+after buffer has been released by GCE. 
+*/
+class MNGAPostProcSessionManagerObserver
+{
+public:
+    /**
+    This method can be called from session manager, whenever a buffer is released by GCE.
+
+    @param  "aBufId Id of the buffer that got released by GCE. This buffer can be used to get 
+    		 more data from decoder"
+    */
+    virtual void BufferAvailable(TInt aBufId, TInt aStatus) = 0;
+    
+};    
+
+#endif //__NGAPOSTPROCSESSIONMANAGEROBSERVER_H__
\ No newline at end of file