/*

* Copyright (c) 2004-2006 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 G711 codec.

*

*/

#ifndef __MCC_CODEC_G711_H__

#define __MCC_CODEC_G711_H__

//  INCLUDES

#include "mmcccodecinformation.h"

// CONSTANTS

// G.711 Codec possible bitrates

const TUint KG711Bitrate64 = 64000;

const TInt KG711DefaultHwFrameTime( 20 );

const TUint8 KG711PayloadTypePCMU( 0 );

const TUint8 KG711PayloadTypePCMA( 8 );

// CLASS DECLARATION

/**

*  Container class for the codec information.

*

*  @lib mmccinterface.dll 

*/

NONSHARABLE_CLASS( CMCCCodecG711 ) : public CMccCodecInformation

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CMCCCodecG711* NewL( );

        /**

        * Destructor.

        */

        virtual ~CMCCCodecG711();

    public:    // From CMCCCodecInformation

        /**

        * From CMCCCodecInformation

        */

        CMccCodecInformation* CloneDefaultsL();

        /**

        * From CMCCCodecInformation

        */

        CMccCodecInformation* CloneDetailedL();

        /**

        * From CMccCodecInformation

        */

        TBool RequireSignalling( const CMccCodecInformation& aCandidate ) const;  

// sets

        /**

        * From MccCodecInformation. 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 MccCodecInformation. 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 MccCodecInformation. 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 MccCodecInformation. Sets the packet time.

        * @since    Series 60 3.0

        * @param aPTime PacketTime.

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

        */

        TInt SetPTime( TUint aPTime );

        /**

        * From MccCodecInformation. Sets max packet time.

        * @since    Series 60 3.0

        * @param aMaxPTime Maximum PacketTime

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

        */

        TInt SetMaxPTime( TUint aMaxPTime );

        /**

        * From MccCodecInformation. 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 MccCodecInformation. 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 aType );

        /**

        * From MccCodecInformation. 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 );

        /**

        * Enable / Disable Comfort noise generation.

        * @param aComfortNoisePT Payloadtype value indicating what

        *        payload type should be used for comfort noise.

        *        KPayloadTypeUndefined can be used to turn comfor noise

        *        generation off.

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

        */

        TInt SetComfortNoiseGeneration( TUint8 aComfortNoisePT );

        /**

        * Set Allowed BitRate

        * @since    Series 60 3.0

        * @param    aBitRateMask

        *                       

        * @return   Etrue, if Mask is valid

        */

        TInt SetAllowedBitrates( TUint aBitrateMask );

    private:

        /**

        * C++ default constructor.

        */

        CMCCCodecG711();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL( );

    };

#endif      //__MCC_CODEC_G711_H__

// End of File