/*

* 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:  

*

*/

#ifndef CMCERTPSINK_H

#define CMCERTPSINK_H

// INCLUDES  

#include "mcemediasink.h"

// CONSTANTS

const TMceSinkType KMceRTPSink = 1;

// CLASS DECLARATION

/**

* Class representing outgoing RTP stream in MCE.

*

* CMceRtpSink can be used to send media data to network.

* It can be configured not to use RTCP during play in order

* to save bandwith. 

*

* CMceRtpSink allows also explicitly sending of RTP RR and SR

* messages.  

*

* Enable and Disable operations to it are considered

* to be local, so they are not signalled to remote terminal.

* 

*  @lib mceclient.lib

*/

class CMceRtpSink: public CMceMediaSink

	{

	public: // Constructors and destructor

	    /**

	    * Two-phased constructor.

	    */

		IMPORT_C static CMceRtpSink* NewL();

	    /**

	    * Two-phased constructor.

	    */

		IMPORT_C static CMceRtpSink* NewLC();

	    /**

	    * Two-phased constructor.

	    * @param aSuppressRTCP, ETrue if RTCP not sent during play,

		*		 EFalse otherwise

		* @param aIdentity, identity of user placed in RTCP, 

		*        ownership not transferred.

	    */

		IMPORT_C static CMceRtpSink* NewL( TBool aSuppressRTCP, 

		                                   HBufC8* aIdentity = 0 );

	    /**

	    * Destructor.

	    */

		IMPORT_C ~CMceRtpSink();

	public: // From base class

	    /**

	    * Locally resumes sending of RTP packets.

		*/

		IMPORT_C void EnableL(); 

	    /**

	    * Locally pauses sending of RTP packets.

		*/

		IMPORT_C void DisableL(); 

	public: // Functions

	    /**

	    * Sends RTCP sender report to recipient.

	    */

		IMPORT_C void SendSRL();

	    /**

	    * Returns the sequence id of the last packet

		* sent to network. The value is updated only

		* when sink is disabled.

		* @pre IsEnabled() == EFalse

	    * @return sequence number of last sent packet.

	    */

		IMPORT_C TUint32 LastPacket() const;

		/**

	    * Returns the RTP stream source identifier 

	    * used in network (SSRC). 

	    * @pre CMceSession::State() == CMceSession::EEstablished 

	    * @return source identifier used in network (SSRC).

	    */

		IMPORT_C TUint32 Ssrc() const;

	    /**

	    * Updates settings of rtp sink.

	    * @pre CMceSession::State() == CMceSession::EIncoming 

	    * @param aSuppressRTCP, ETrue if RTCP not sent during play,

		*		 EFalse otherwise

		* @param aIdentity, identity of user placed in RTCP, 

		*        ownership not transferred.

	    */

		IMPORT_C void UpdateL( TBool aSuppressRTCP, HBufC8* aIdentity = 0  );

	private:

	    /**

	    * C++ default constructor.

	    */

		CMceRtpSink();

	    /**

	    * second-phase constructor

	    * @param aSuppressRTCP, ETrue if RTCP not sent during play,

	    *		 EFalse otherwise

	    */

		void ConstructL( TBool aSuppressRTCP );

	public: // stub data

    /**

     * suppress RTCP

     */

    TBool iSuppressRTCP;

    /**

     * SSRC

     */

    TUint32 iSSRC;

    /**

     * last packet

     */

    TUint32 iLastPacket;

	};

#endif