--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/inc/msrtpcryptohandlercontextrtcp.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,60 @@
+/*
+* Copyright (c) 2005 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:    implementation
+*
+*/
+
+
+
+#ifndef MSRTPCRYPTOHANDLERCONTEXTRTCP_H
+#define MSRTPCRYPTOHANDLERCONTEXTRTCP_H
+
+#include <e32std.h>
+#include "msrtpcryptohandlercontext.h"
+
+
+// CLASS DECLARATION
+/*
+* A context for stream classes for using RTCP-specific crypto handling operations.
+*
+*  @lib n/a
+*/
+class MSRTPCryptoHandlerContextRTCP: public MSRTPCryptoHandlerContext
+	{	
+public: // New functions  
+       
+       /*
+        * Determines the index i
+        * of an SRTCP packet by incrementing one on sender's side.         
+        * @return void        
+        */
+	    virtual void CountSenderPacketIndexL() = 0;	    
+ 
+       /*
+        * Initial the index i
+        * of an SRTCP packet with initial packet index on sender's side.         
+        * @return void        
+        */		
+ 		virtual void InitialPacketIndex()=0;
+        
+       /*
+        * Implements pseudocode on RFC 3711 Appendix A
+        * for determining the index i of an SRTP packet with given sequence number SEQ
+        * and current s_l value in receiver side
+        * @leave KErrNone if success, system-wide error code otherwise
+        * @return void                
+        */		
+ 		virtual void ReceiverPacketIndexL()	=0;    
+	};
+#endif  //MSRTPCryptoHandlerContextRTCP_H