/*

* 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:  

* Definition for CMPEG4Timer.

*

*/

#ifndef     __MPEG4TIMER_H__

#define     __MPEG4TIMER_H__

/* 

* Includes

*/

#include <e32base.h>

#include <gdi.h>

#include <e32std.h>

#include "vedcommon.h"

#include "movieprocessorimpl.h"

/* 

*  Class Declarations

*/

class CMPEG4Timer: public CBase

{

public:

	 /**

	 * Public member functions 

	 */

	 /**

	 * C++ default constructor

	 */

	CMPEG4Timer() {};

	/** 

	 * Destructor can be called at any time (i.e., also in the middle of a processing operation)

	 * Should release all allocated resources, including releasing all allocated memory and 

	 * *deleting* all output files that are currently being processed but not yet completed.

	 */

	~CMPEG4Timer();

	 /** 

	 * Constructors for instantiating new video processors.

	 * Should reserve as little resources as possible at this point.

	 */

	static CMPEG4Timer * NewL(CMovieProcessorImpl * aMovProcessor, TInt aTimeIncrementResolution);

	 /** 

     * Get the frame duration in millisec from the last frame with modulo base larger than zero 

     *          

     * @return Duration in millisec

	 *

     */

	TInt64 GetMPEG4DurationInMsSinceLastModulo();

	 /** 

     * Update the time stamp and duration of the last frame for MPEG-4 video 

     *          

	 * @param aAbsFrameNumber        frame number in the movie

	 * @param aFrameNumber           frame number in the current video clip

	 * @param aTimeScale             time scale 

	 *

     */

	void UpdateMPEG4Time(TInt aAbsFrameNumber, TInt aFrameNumber, TInt aTimeScale);

	 /** 

     * Pointer to iMPEG4TimeStamp object (contains MPEG-4 frame timing information)

     *          

     */

	tMPEG4TimeParameter * GetMPEG4TimeStampPtr() { return &iMPEG4TimeStamp; }

	 /** 

     * Pointer to iMPEG4TimeResolution object (contains MPEG-4 frame time resolution information)

     *          

     */

	TInt * GetMPEG4TimeResolutionPtr() { return &iMPEG4TimeResolution; }

private:

	/* 

	 * Private member functions 

	 */

	 /** 

     * Symbian OS C++ style constructor 

	 *

     */

	void ConstructL(CMovieProcessorImpl * aMovProcessor, TInt aTimeIncrementResolution);

	/* 

	 * Member variables 

	 */

	/* frame duration in millisec from the last frame with modulo base larger than zero */

	TInt iMPEG4DurationInMsSinceLastModulo;

	/* structure for timing information of MPEG-4 frame */

	tMPEG4TimeParameter iMPEG4TimeStamp;

	/* time resolution of MPEG-4 video clip */

	TInt iMPEG4TimeResolution;

	/* video processor object */

	CMovieProcessorImpl * iProcessor;	

	TInt iPrevModuloTimeBaseVal;

};

#endif      /* __TRANSCODER_H__ */

/* End of File */