/*

* Copyright (c) 2004-2005 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:   

*

*/

#ifndef __RTPPACKET_H

#define __RTPPACKET_H

//  INCLUDES

#include <e32def.h>

#include "rtppacketparam.h"

#include <rtpheader.h>

#include "rtputil.h"

// CLASS DECLARATION

/**

*  The class for RTP packet building and processing. 

*

*  @lib RtpService.dll

*/

class CRtpPacket : public CBase

    {

    #if defined( _DEBUG ) && defined( RTP_UNIT_TEST )

	    //Friend class used for testing

	    friend class CRtpUtRtpPacket; 

	    friend class CRtpUtRtpStream; 

    #endif 

    public:

        static CRtpPacket* NewL( TUint aPacketSize, const TUint32* aRtpTimeRates );

        ~CRtpPacket();

        void RtpPacketReset();  

        void RtpPacketResetPtr();

        TRtpSSRC RtpPacketGetSSRC();   

        TRtpPayloadType RtpPacketGetPayloadType();  

        TInt RtpPacketBuild( TRtpPacketStreamParam* aStreamParam, 

                             TRtpPacketIOParam* aInitParam );

        TRtpRtcpEnum RtpPacketProcessL( TRtpPacketStreamParam* aStreamParam, 

                                       TRtpPacketIOParam* aExtractParam );

//        TInt RtpPacketBuildNonRtp( const TDesC8& aData, TUint aMaxPacketLength);

        inline void SetSize( TInt aSize );

        inline void SetType( TRtpPacketType aType );

        inline TInt Size() const;

        inline TUint8* Data();

        inline HBufC8* GetHBuf();

        inline TRtpPacketType Type() const;

        inline const TPtrC8 Des() const;

    private:

        TInt RtpPacketBuildRtp( TRtpPacketStreamParam* aStreamParam, 

                                TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildRtcp( TRtpPacketStreamParam* aStreamParam, 

                                 TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildApp( TRtpPacketStreamParam* aStreamParam, 

                                TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildBye( TRtpPacketStreamParam* aStreamParam, 

                                TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildRr( TRtpPacketStreamParam* aStreamParam, 

                               TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildSr( TRtpPacketStreamParam* aStreamParam, 

                               TRtpPacketIOParam* aInitParam );

        TInt RtpPacketBuildSdes( TRtpPacketStreamParam* aStreamParam, 

                                 TRtpPacketIOParam* aInitParam );

        TRtpRtcpEnum RtpPacketProcessRtpL( TRtpPacketStreamParam* aStreamParam,

                                          TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessRtcp( TRtpPacketStreamParam* aStreamParam,

                                          TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessAppL( TRtpPacketStreamParam* aStreamParam,

                                          TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessByeL( TRtpPacketStreamParam* aStreamParam,

                                          TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessRr( TRtpPacketStreamParam* aStreamParam,

                                         TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessSr( TRtpPacketStreamParam* aStreamParam,

                                         TRtpPacketIOParam* aExtractParam );

        TRtpRtcpEnum RtpPacketProcessSdesL( TRtpPacketStreamParam* aStreamParam,

                                          TRtpPacketIOParam* aExtractParam );

        CRtpPacket( const TUint32* aRtpTimeRates );

        void ConstructL( TUint aPacketSize );

        void Write16( TUint8* const aPointer, TUint16 aValue );

        TUint16 Read16( const TUint8* const aPointer );

        void Write24( TUint8* const aPointer, TUint32 aValue );

        TUint32 Read24( const TUint8* const aPointer );

        void Write32( TUint8 *const aPointer, TUint32 aValue );

        TUint32 Read32( const TUint8* const aPointer );

	public:

		TBool iExdataAlloc;

		TBool iCsrcAlloc;

		TRtpPacketIOParam* iExtractParam;

    private:

        HBufC8* iBuf;

        TInt iSize;   

        TUint8* iData;          // pointer to the beginning of the iBuf

        TUint8* iDataPtr;       // pointer to the beginning of date unhandled

        TRtpPacketType iType;   // an enum for packet type

        const TUint32* iProfileRTPTimeRates; //pointer to 

    private:    

    #ifdef EUNIT_TESTING

	  friend class UT_CRtpPacket;

	  friend class UT_CRtpStream;

	  friend class UT_CRtpSession;

	  friend class UT_CRtpTranStream;

	#endif     	    

    };

#include "rtppacket.inl"

#endif  // __RTPPACKET_H

// End of File