/*

* Copyright (c) 2008 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:

*

*/

/**

@file

@internalComponent

*/

#ifndef BUFFERCOPIER_H_

#define BUFFERCOPIER_H_

#include <e32base.h>

#include <e32msgqueue.h>

#include <openmax/il/khronos/v1_x/OMX_Core.h>

class MBufferCopierIf

	{

public:

	/** Called when the buffer copier has transferred the data from an input buffer to an output buffer. */

	virtual void MbcBufferCopied(OMX_BUFFERHEADERTYPE* aInBuffer, OMX_BUFFERHEADERTYPE* aOutBuffer) = 0;

	/** Called when a buffer is flushed from the buffer copier. */

	virtual void MbcBufferFlushed(OMX_BUFFERHEADERTYPE* aBuffer, OMX_DIRTYPE aDirection) = 0;

	};

class CBufferCopier : public CActive

	{

public:

	static CBufferCopier* NewL(MBufferCopierIf& aCallback, TInt aMaxBuffers);

	~CBufferCopier();

	void DeliverBuffer(OMX_BUFFERHEADERTYPE* aBuffer, OMX_DIRTYPE aDirection);

	TBool RemoveBuffer(OMX_BUFFERHEADERTYPE* aBuffer, OMX_DIRTYPE aDirection);

	void FlushBuffers(OMX_DIRTYPE aDirection);

protected:

	void RunL();

	void DoCancel();

private:

	CBufferCopier(MBufferCopierIf& aCallback);

	void ConstructL(TInt aMaxBuffers);

	void CopyBuffer(OMX_BUFFERHEADERTYPE* aInBuffer, OMX_BUFFERHEADERTYPE* aOutBuffer);

	TBool RemoveFromQueue(RMsgQueue<OMX_BUFFERHEADERTYPE*>& aQueue, OMX_BUFFERHEADERTYPE* aBufferHeader);

	MBufferCopierIf& iCallback;

	RMsgQueue<OMX_BUFFERHEADERTYPE*> iInQueue;

	RMsgQueue<OMX_BUFFERHEADERTYPE*> iOutQueue;

	RMsgQueue<OMX_BUFFERHEADERTYPE*> iRemoveQueue;

	OMX_BUFFERHEADERTYPE* iInBuffer;

	};

#endif /*BUFFERCOPIER_H_*/