--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dvrengine/CommonRecordingEngine/DvrRtpUtils/inc/CRtpTsConverter.h	Wed Sep 01 12:20:37 2010 +0100
@@ -0,0 +1,156 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Class to provide TS conversion for an RTP-stream based on*
+*/
+
+
+
+
+
+#ifndef CRTPTSCONVERTER_H
+#define CRTPTSCONVERTER_H
+
+//  INCLUDES
+#include <RtpHeader.h>
+
+// CONSTANTS
+const TUint KPipelineClockRate( 1000 );
+
+// MACROS
+// None
+
+// DATA TYPES
+// None
+
+// FORWARD DECLARATIONS
+// None
+
+// CLASS DECLARATION
+
+/**
+*  Class for converting RTP-timestamps.
+*
+*  @lib CommonRecordingEngine.lib
+*  @since Series 60 3.0
+*/
+class CRtpTsConverter : public CBase
+    {
+
+public: // Constructors and destructor
+
+    /**
+    * Two-phased constructor.
+    * @param aClockRate the clockrate for the media stream.
+    */
+    IMPORT_C static CRtpTsConverter* NewL( const TUint aClockRate );
+    
+    /**
+    * Destructor.
+    */
+    IMPORT_C virtual ~CRtpTsConverter();
+
+public: // New functions
+
+    /**
+    * Initialize timestamp converter
+    * @since Series 60 3.0
+    * @param aRtcpPkt a RTCP packet for the media stream to be sychronized.
+    * @return none.
+    */
+    IMPORT_C void Init( const TDesC8& aRtcpPkt );
+    
+    /**
+    * Initialize timestamp converter
+    * @since Series 60 3.0
+    * @param aTs intial value of RTP timestamp
+    * @return none.
+    */
+    IMPORT_C void Init( const TUint& aTs );
+
+    /**
+    * Gets status on initialization.
+    * @since Series 60 3.0
+    * @param none.
+    * @return true if converter initialized, otherwise false.
+    */
+    IMPORT_C TBool Initiated();
+
+    /**
+    * Uninitializes the converter.
+    * @since Series 60 3.0
+    * @param none.
+    * @return none.
+    */
+    IMPORT_C void UnInitiate();
+
+    /**
+    * Gets time stamp from a RTP packet.
+    * @since Series 60 3.0
+    * @param aTimestamp a RTP packet's TS to convert.
+    * @param aUseWallClock if true converts to wall clock time.
+    * @return a time stamp value.
+    */
+    IMPORT_C TUint ConvertTs( const TUint aTimestamp,
+                              const TBool aUseWallClock = EFalse );
+
+private: // Constructors and destructor
+
+    /**
+    * By default Symbian 2nd phase constructor is private.
+    */
+    void ConstructL();
+
+    /**
+    * C++ default constructor.
+    * @param aClockRate the clockrate for the media stream.
+    */
+    CRtpTsConverter( const TUint aClockRate );
+
+
+private: // New functions
+
+    /**
+    * Calculate the offset for adjusting the RTP timestamps.
+    * @since Series 60 3.0
+    * @param aRtpTime a RTP time stamp.
+    * @param aSeekTime a wall clock time.
+    * @param clockRate a wall clock time.
+    * @return a offset for RTP TS adjustment.
+    */
+    TUint ComputeOffset( const TUint aRtpTime,
+                         const TUint aSeekTime,
+                         const TInt clockRate );
+
+private: // Data
+
+    /**
+    * Clockrate.
+    */
+    const TUint iClockRate;
+    
+    /**
+    * Offset.
+    */
+    TUint iOffset;
+
+    /**
+    * Initiated.
+    */
+    TBool iInitiated;
+        
+    };
+
+#endif // CRTPTSCONVERTER_H
+
+// End of File