/*

* 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:  

*

*/

#ifndef __CPROCCLIPINFOAO_H__

#define __CPROCCLIPINFOAO_H__

#include <e32base.h>

#include "AudCommon.h"

#include "AudClipInfo.h"

#include "AudProcessorImpl.h"

class MProcClipInfoObserver;

class CAudProcessorImpl;

class CProcClipInfoAO : public CActive 

    {

public:

    static CProcClipInfoAO* NewL();

    virtual ~CProcClipInfoAO();

    /**

    *

    * Starts retrieving audio clip info

    *

    * @param    aFilename        filename of the input file

    * @param    aFileHandle      file handle of the input file

    * @param    aObserver        observer to be notified of progress

    * @param    aProperties        properties of the input file.

    *                            Needs to be allocated by the caller,                            

    *                            and will filled in as a result of calling

    *                            this function

    * @param    aPriority        priority of the operation

    *

    */

    void StartL(const TDesC& aFilename, 

                RFile* aFileHandle,

        MProcClipInfoObserver &aObserver,         

        TAudFileProperties* aProperties,

        TInt aPriority);

protected:

    virtual void RunL();

    virtual void DoCancel();

private:

    void ConstructL();

private:

    CProcClipInfoAO();

    MProcClipInfoObserver* iObserver;

    TAudFileProperties* iProperties;

    HBufC* iFileName;

    CAudProcessorImpl* iProcessorImpl;

    RFile* iFileHandle;

    };

#endif