/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

* Audio processor class.

*

*/

#ifndef __AUDIOPROCESSOR_H__

#define __AUDIOPROCESSOR_H__

#ifndef __E32BASE_H__

#include <e32base.h>

#endif

class CMovieProcessorImpl;

class CAudSong;

/**

 * Audio processor.

 */

class CAudioProcessor : public CActive

	{

public:  // Constructors and destructor

    /**

    * Two-phased constructor

    */

    static CAudioProcessor* NewL(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong);

    static CAudioProcessor* NewLC(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong);       

    /**

    * Destructor.

    */

    virtual ~CAudioProcessor();

public:  // Functions from base classes

    /**

    * From CActive Active object cancelling method

    */

    void DoCancel();

    /**

    * From CActive Active object running method

    */

    void RunL();

    /**

    * From CActive Active object error method

    */

    TInt RunError(TInt aError);

public:  // New functions

    /**

    * Starts audio processing    

    */      

    void StartL();

    /**

    * Stops audio processing    

    */          

    void StopL();    

private:

    /**

    * Constructor

    */

    CAudioProcessor(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong);

    /**

    * By default EPOC constructor is private.

    */

    void ConstructL();

    /**

    * Process a number of audio frames

    */

    void ProcessFramesL();

private:  // Data

    // movie processor instance

    CMovieProcessorImpl* iMovieProcessor; 

    // song

    CAudSong* iSong;

    TBool iProcessing;

    };

#endif

// End of file