/*

* Copyright (c) 2008-2009 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:    Utility for creating bitmaps from video files

*

*/

/**

 * @internal reviewed 30/07/2007 by Simon Brooks

 */

#ifndef GLXTNVIDEOUTILITY_H

#define GLXTNVIDEOUTILITY_H

#include <e32base.h>

#ifdef ENABLE_VED

#include <VedVideoClipInfo.h>

#else

#include <TNEVideoClipInfo.h>

#endif

class CFbsBitmap;

/**

 * Utility for creating bitmaps from video files

 *

 * @author Dan Rhodes

 * @ingroup glx_thumbnail_creator

 */

NONSHARABLE_CLASS( CGlxtnVideoUtility ) : public CBase,

#ifdef ENABLE_VED

    public MVedVideoClipInfoObserver, public MVedVideoClipFrameObserver

#else

    public MTNEVideoClipInfoObserver, public MTNEVideoClipThumbObserver

#endif

    {

public:

    /**

     * Default constructor.

     */

    CGlxtnVideoUtility();

    /**

     * Destructor.

     */

    ~CGlxtnVideoUtility();

    /**

     * Start asynchronous frame decoding.

     * @param aRequestStatus Request status for the asynchronous operation.

     * @param aDestination Bitmap in which to store the frame.

     * @param aFileName Full name of video file.

     */

    void GetVideoFrameL( TRequestStatus* aRequestStatus,

                        CFbsBitmap*& aDestination, const TDesC& aFileName,

                                RArray<TSize>& aTargetSizes, TDisplayMode aMode );

    /**

     * Cancel asynchronous frame decoding.

     */

    void Cancel();

#ifdef ENABLE_VED

private:    // From MVedVideoClipInfoObserver

    void NotifyVideoClipInfoReady( CVedVideoClipInfo& aInfo, TInt aError );

private:    // From MVedVideoClipFrameObserver

    void NotifyVideoClipFrameCompleted( CVedVideoClipInfo& aInfo,

                                        TInt aError, CFbsBitmap* aFrame );

#else

private:    // From MTNEVideoClipInfoObserver

    void NotifyVideoClipInfoReady( CTNEVideoClipInfo& aInfo, TInt aError );

private:    // From MTNEVideoClipThumbObserver

    void NotifyVideoClipThumbCompleted( CTNEVideoClipInfo& aInfo, 

                                        TInt aError, CFbsBitmap* aFrame );

#endif

private:

#ifdef ENABLE_VED

    CVedVideoClipInfo* iVideoInfo;

#else

    CTNEVideoClipInfo* iVideoInfo;

#endif

    /** Client's request status */

    TRequestStatus* iRequestStatus;

    /** Pointer to variable to hold returned frame */

    CFbsBitmap** iDestination;

    TSize iSize;

    TDisplayMode iDisplayMode;

    };

#endif  // GLXTNVIDEOUTILITY_H