/*

* 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 __CPROCPROCESSAO_H__

#define __CPROCPROCESSAO_H__

#include <e32base.h>

#include "AudCommon.h"

#include "AudSong.h"

#include "AudProcessor.h"

#include "AudProcessorImpl.h"

#include "ProcEncoder.h"

class MProcProcessObserver;

class CAudProcessorImpl;

class CAudProcessor;

class CProcProcess : public CBase

    {

public:

    /**

    *

    * Constructor & destructor

    *

    */

    static CProcProcess* NewL();

    ~CProcProcess();

    /**

    * Starts a syncronous song processing operation

    *

    * @param    aSong        song

    * 

    */

    TBool StartSyncProcessingL(const CAudSong* aSong, TBool aGetTimeEstimation = EFalse);

    /**

    * Processes one piece syncronously

    *

    * @param    aFrame        audio frame in output

    * @param    aProgerss    current progress (0-100)

    * @param    aDuration    duration of aFrame

    * 

    */

    TBool ProcessSyncPieceL(HBufC8*& aFrame, TInt& aProgress,

                                       TTimeIntervalMicroSeconds& aDuration);

    /**

    *

    * Gets time estimate once the time estimate has been calculated

    *

    * If time estimation has not been processed, returns 0

    *

    * @return processing time estimate in microseconds

    */

    TInt64 GetFinalTimeEstimate() const;

protected:

private:

    // constructL

    void ConstructL();

    // C++ constructor

    CProcProcess();

private:

    // observer for callbacks

    MProcProcessObserver* iObserver;

    // processorImpl owned by this

    CAudProcessorImpl* iProcessorImpl;

    // song

    const CAudSong* iSong;

    // encoder

    CProcEncoder* iEncoder;

    // buffer for getting data from encoder

    HBufC8* iDecBuffer;

    // sometimes the encoder returns more than one AMR frame at a time

    // still we need to return only one frame to the higher level

    // this buffer is a temporary storage for extra AMR frames

    HBufC8* iAMRBuf;

    // progress

    TInt iProgress;

    HBufC8* iAACBuf;

    // buffer for feeding the encoder

    CMMFDataBuffer* iEncFeedBuffer;

    TInt64 iTimeEstimate;

    };

#endif