/*

* Copyright (c) 2004 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:    Class is used for configuring comfornt noise codec.

*

*/

#ifndef __MCC_CODEC_CN_H__

#define __MCC_CODEC_CN_H__

//  INCLUDES

#include <e32cmn.h>

#include "mmcccodecinformation.h"

// CONSTANTS

const TInt KCnPTime = 20;

const TInt KCnMaxPTime = 200;

const TUint KCnSamplingFreq = 8000;

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  Container class for the codec information.

*

*  @lib mmccinterface.dll

*  

*/

NONSHARABLE_CLASS( CMccCodecCn ) : public CMccCodecInformation

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CMccCodecCn* NewL();

        /**

        * Destructor.

        */

        virtual ~CMccCodecCn();

    public: // New functions

    public: // From CMccCodecInformation

        /**

        * From CMccCodecInformation

        */

        TBool RequireSignalling( const CMccCodecInformation& aCandidate ) const;     

        /**

        * From CMccCodecInformation

        */

        CMccCodecInformation* CloneDefaultsL();

        /**

        * From CMccCodecInformation

        */

        CMccCodecInformation* CloneDetailedL();

        /**

        * From CMccCodecInformation. Enable / Disable Voice Activity Detection.

        * @since    Series 60 3.0

        * @param    aEnableVAD    Boolean indicating whether to enable Voice Activity Detection

        * @return   KErrNotSupported if codec doesn't support VAD; otherwise KErrNone.

        */

        TInt EnableVAD( TBool aEnableVAD );

        /**

        * From CMccCodecInformation. Sets bitrate used with codec.

        * @since     Series 60 3.0

        * @param     aBitrate     New bitrate value

        * @return    KErrNotSupported if codec doesn't support bitrate value issued; otherwise KErrNone.

        */

        TInt SetBitrate( TUint aBitrate );

        /**

        * From CMccCodecInformation. Sets the sampling frequency.

        * @since    Series 60 3.0

        * @param    aSamplingFreq   Sampling frequency to be used

        * @return   KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone.

        */

        TInt SetSamplingFreq( TUint32 aSamplingFreq );

        /**

        * From CMccCodecInformation. Sets the packet rate.

        * @since     Series 60 3.0

        * @param     aPacketrate        New packetrate

        * @return    KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone.

        */

        TInt SetPTime( TUint aPTime );

        /**

        * From CMccCodecInformation. Sets the packet rate.

        * @since     Series 60 3.0

        * @param     aPacketrate        New packetrate

        * @return    KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone.

        */

        TInt SetMaxPTime( TUint aMaxPTime );

        /**

        * From CMccCodecInformation. Sets the sdp name.

        * @since Series 60 3.0

        * @param aRtpId - [input] RTP session ID

        * @return One of the standard system-wide error codes.

        */

        TInt SetSdpName( const TDesC8& aSdpName );

        /**

        * From CMccCodecInformation. Sets the payload type.

        * @since Series 60 3.0

        * @param aRtpId - [input] RTP session ID

        * @return One of the standard system-wide error codes.

        */

        TInt SetPayloadType( TUint8 aPayloadType );

        /**

        * From CMccCodecInformation. Sets the codec mode.

        * @since         Series 60 3.0

        * @param aMode   Codec mode ( e.g. ULAW/ALAW, Bandwidth efficient / octet aligned )

        * @return        KErrNotSupported if codec doesnt' support codec mode value issued; otherwise KErrNone.

        */

        TInt SetCodecMode( TCodecMode aCodecMode ); 

        /**

        * Set Allowed BitRate

        * @since    Series 60 3.0

        * @param    aBitRateMask

        *                       

        * @return   Etrue, if Mask is valid

        */

        TInt SetAllowedBitrates( TUint aBitrateMask );

    private:

        /**

        * C++ default constructor.

        */

        CMccCodecCn();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();        

    private:

        #ifdef TEST_EUNIT

            friend class UT_CMccCodecCn;

        #endif     

    };

#endif      // __MCC_CODEC_CN_H__

// End of File