/*

* 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:  RTP observer for SVP

*

*/

#ifndef SVPRTPOBSERVER_H

#define SVPRTPOBSERVER_H

// INCLUDES

#include <e32base.h>

#include <mcesession.h>

#include <mcertpobserver.h>

// FORWARD DECLARATIONS

class CSVPSessionBase;

class CSVPRtpObserverRequest;

// CLASS DECLARATION

/**

 * CSVPRtpObserver

 * 

 */

class CSVPRtpObserver : public CBase, public MMceRtpObserver

    {

public:     // Constructors and destructor

    /**

     * Destructor.

     */

    ~CSVPRtpObserver();

    /**

     * Two-phased constructor.

     */

    static CSVPRtpObserver* NewL();

    /**

     * Two-phased constructor.

     */

    static CSVPRtpObserver* NewLC();

public:     // From MMceRtpObserver

    void SRReceived( CMceSession& aSession,

					CMceMediaStream& aStream );

    void RRReceived( CMceSession& aSession,

					CMceMediaStream& aStream );

    void InactivityTimeout( CMceMediaStream& aStream,

					CMceRtpSource& aSource );

    void SsrcAdded( CMceMediaStream& aStream,

					CMceRtpSource& aSource,

					TUint aSsrc );

    void SsrcRemoved( CMceMediaStream& aStream,

					 CMceRtpSource& aSource,

					 TUint aSsrc );

public:     // New functions

    /**

     * Adds a SVP session for observing RTCP (or RTCP timeouts).

     * @since S60 v3.2

     * @param aSession SVP session.

     */

    void AddSessionForObservingL( CSVPSessionBase* aSession );

    /**

     * Removes a SVP session from RTCP observer.

     * @since S60 v3.2

     * @param aSession SVP session.

     * @return TInt KErrNotFound if given session is not found,

     *              KErrNone otherwise.

     */

    TInt RemoveSessionFromObserving( CSVPSessionBase* aSession );

    /**

     * Resets(stops) session specific RTCP observing timers.

     * @since S60 3.2

     * @param aSession SVP session.

     * @return TInt KErrNotFound if given session is not found,

     *              KErrNone otherwise.

     */

    TInt ResetSessionInObserving( CSVPSessionBase* aSession );

private:    // New functions

    /**

     * Finds a observer request by SVP session.

     * @since S60 v3.2

     * @param aSession SVP session

     * @return CSVPRtpObserverRequest or NULL if associated request not found

     */

    CSVPRtpObserverRequest* FindBySvpSession(

        const CSVPSessionBase* aSession );

    /**

     * Finds a observer request by MCE session.

     * @since S60 v3.2

     * @param aSession SVP session

     * @return CSVPRtpObserverRequest or NULL if associated request not found

     */

    CSVPRtpObserverRequest* FindByMceSession( const CMceSession* aSession );

private:    // Consturctors

    /**

     * Constructor for performing 1st stage construction

     */

    CSVPRtpObserver();

    /**

     * EPOC default constructor for performing 2nd stage construction

     */

    void ConstructL();

private:    // Data

    /**

     * Request array.

     * Own

     */

    RPointerArray<CSVPRtpObserverRequest> iRequestArray;

    };

#endif // SVPRTPOBSERVER_H