/*

* 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:  Audio input class to handle compressed audio input from codec 

*                HW devices located under DevSound

*

*/

#ifndef CCMRAUDIOINPUTHW_H

#define CCMRAUDIOINPUTHW_H

// INCLUDES

#include "CCMRAudioInput.h"

// FORWARD DECLARATIONS

class CCMRFifo;

// CLASS DECLARATIONS

/**

*  Audio input class to be used with HW device audio codecs

*/

class CCMRHWAudioInput : public CCMRAudioInput

    {

    public:  // Constructor and destructor

        /**

        * Two-phased constructor.

        * @param MDataSource *aMMFAudioInput

        * @param TMediaId aMediaId 

        * @return CCMRAudioInput* Pointer to constructed audioinput

        */

        static CCMRAudioInput* NewL(MDataSource *aMMFAudioInput, CCMRActiveOutput* aOutput, TUint aThreadId, MAsyncEventHandler& aEventHandler, CCMRConfigManager* aConfig );

        /**

        * Destructor.

        */

        virtual ~CCMRHWAudioInput();

    public: // from base classes

        /**

        * From CCMRAudioInput, informs that the given buffer is filled, called by MMFAudioInput

        */

        void BufferFilledL(CMMFBuffer* aBuffer);

        /**

        * From CCMRAudioInput, requests to fill the buffer

        */

        void FillBufferL(CMMFBuffer* aBuffer);

        /**

        * From CCMRAudioInput, stops recording

        */

        void SourceStopL();

        /**

        * From CCMRAudioInput, starts recording

        */

        void SourceRecordL();

        /**

        * From CCMRAudioInput, set codecdata-object

        */

        void SetCodecL( CCMRAudioCodecData* aCodecData );

        /**

        * From CCMRAudioInput, configures the codec

        */

        void ConfigureCodecL();

    protected: // from base classes

        /**

        * From CActive, moves buffer to wait for retrieval from output active object

        */

        void RunL();

        /**

        * From CActive, handles errors in RunL

        */

        TInt RunError(TInt aError);

        /**

        * From CActive, cancels the AO

        */

        void DoCancel();

    private: // constructors

        /**

        * C++ default constructor

        * @param MDataSource* aDataSource

        * @param TMediaId aMediaId

        */

        CCMRHWAudioInput(MDataSource* aDataSource, MAsyncEventHandler& aEventHandler) : 

            CCMRAudioInput(aDataSource, aEventHandler) {};

        /**

        * Symbian 2nd phase constructor

        */

        void ConstructL(CCMRActiveOutput* aOutput, TUint aThreadId, CCMRConfigManager* aConfig);

        /**

        * Handles allocation of input buffers after audioinput has completed initialization.

        */        

        void AllocateInputBuffersL();

    };

#endif      

// End of File