/*

* 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:  

*

*/

/* Copyright (c) 2004, Nokia. All rights reserved. */

#ifndef __VEDVIDEOCLIPINFOGENERATEDIMP_H__

#define __VEDVIDEOCLIPINFOGENERATEDIMP_H__

#include <e32base.h>

#include "VedCommon.h"

#include "VedVideoClipInfo.h"

#include "VedVideoClipGenerator.h"

/*

 *  Forward declarations.

 */

class CVedVideoClipInfoGeneratedOperation;

class CVedVideoClipGeneratedFrameToFrameAdapter;

/**

 * Utility class for getting information about generated video clips.

 */

class CVedVideoClipInfoGeneratedImp : public CVedVideoClipInfo

    {

public:

    CVedVideoClipInfoGeneratedImp(CVedVideoClipGenerator& aGenerator, TBool aOwnsGenerator);

    void ConstructL(MVedVideoClipInfoObserver& aObserver);

    /**

     * Destroys the object and releases all resources.

     */    

    ~CVedVideoClipInfoGeneratedImp();

    /* General property methods. */

    TPtrC DescriptiveName() const;

    TPtrC FileName() const;

    RFile* FileHandle() const;

    CVedVideoClipGenerator* Generator() const;

    TVedVideoClipClass Class() const;

    TVedVideoFormat Format() const;

    TVedVideoType VideoType() const;

    TSize Resolution() const;

    TBool HasAudio() const;

    TVedAudioType AudioType() const;

    TVedAudioChannelMode AudioChannelMode() const;

    TInt AudioSamplingRate() const;

    TTimeIntervalMicroSeconds Duration() const;

    /* Video frame property methods. */

    TInt VideoFrameCount() const;

    TTimeIntervalMicroSeconds VideoFrameStartTimeL(TInt aIndex);

    TTimeIntervalMicroSeconds VideoFrameEndTimeL(TInt aIndex);

    TTimeIntervalMicroSeconds VideoFrameDurationL(TInt aIndex);

    TInt VideoFrameSizeL(TInt aIndex);

    TBool VideoFrameIsIntraL(TInt aIndex);

    TInt GetVideoFrameIndexL(TTimeIntervalMicroSeconds aTime);

    void SetTranscodeFactor(TVedTranscodeFactor aFactor);

    TVedTranscodeFactor TranscodeFactor();

    TBool IsMMSCompatible();

    /* Frame methods. */

    void GetFrameL(MVedVideoClipFrameObserver& aObserver,

                            TInt aIndex,

                            TSize* const aResolution,

                            TDisplayMode aDisplayMode,

                            TBool aEnhance,

                            TInt aPriority);

    void CancelFrame();

private:

    // Member variables

    // Get audio info operation.

    CVedVideoClipInfoGeneratedOperation* iInfoOperation;

    // Flag to indicate then info is available

    TBool iReady;

    // Frame generator

    CVedVideoClipGenerator* iGenerator;

    TBool iOwnsGenerator;

    CVedVideoClipGeneratedFrameToFrameAdapter* iAdapter;

    TVedTranscodeFactor iTFactor; 

    friend class CVedVideoClipInfoGeneratedOperation;

    };

class CVedVideoClipGeneratedFrameToFrameAdapter : public CBase, public MVedVideoClipGeneratorFrameObserver

    {

public:

    CVedVideoClipGeneratedFrameToFrameAdapter(CVedVideoClipInfo& aInfo);

    void NotifyVideoClipGeneratorFrameCompleted(CVedVideoClipGenerator& aInfo, 

                                                        TInt aError, 

                                                        CFbsBitmap* aFrame);

private:

    MVedVideoClipFrameObserver* iFrameObserver;

    CVedVideoClipInfo& iInfo;

    friend class CVedVideoClipInfoGeneratedImp;

    };

/**

 * Internal class for asynchronous construction of info class.

 */

class CVedVideoClipInfoGeneratedOperation : public CActive

    {

public:

    /* Static constructor */

    static CVedVideoClipInfoGeneratedOperation* NewL(CVedVideoClipInfoGeneratedImp* aInfo,

                                                     MVedVideoClipInfoObserver& aObserver);

protected:

    /*

    * From CActive

    * Standard active object RunL 

    */

    void RunL();

    /*

    * From CActive

    * Standard active object DoCancel

    */

    void DoCancel();

private:

    /* Default constructor */

    CVedVideoClipInfoGeneratedOperation(CVedVideoClipInfoGeneratedImp* aInfo, 

                                        MVedVideoClipInfoObserver& aObserver);

    /* Standard Symbian OS two phased constructor */

    void ConstructL();

    /* Destructor */

    ~CVedVideoClipInfoGeneratedOperation();

private:

    // Class to contain video clip info.

    CVedVideoClipInfoGeneratedImp* iInfo;

    // Observer of video clip info operation.

    MVedVideoClipInfoObserver* iObserver;

    friend class CVedVideoClipInfoGeneratedImp;

    };

#endif // __VEDVIDEOCLIPINFOGENERATEDIMP_H__