sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef MDFVIDEODECODERBUFFERMANAGER_H
sl@0: #define MDFVIDEODECODERBUFFERMANAGER_H
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <mmf/devvideo/videoplayhwdevice.h>
sl@0: #include <mmf/devvideo/devvideoplay.h>
sl@0: #include <mmf/server/mmfdatabuffer.h>
sl@0: 
sl@0: /**
sl@0: 
sl@0: */
sl@0: class CVideoDataBuffer : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	static CVideoDataBuffer* NewL(TUint aSize);
sl@0: 	static CVideoDataBuffer* NewL(CMMFBuffer* aBuffer);
sl@0: 
sl@0: 	operator CMMFBuffer*();
sl@0: 	operator TVideoInputBuffer&();
sl@0: 
sl@0: 	TBool operator ==(const CMMFBuffer* aBuffer) const;
sl@0: 	TBool operator ==(const TVideoInputBuffer& aVideoInputBuffer) const;
sl@0: 	
sl@0: 	TUint Length();
sl@0: 
sl@0: 	~CVideoDataBuffer();
sl@0: private:
sl@0: 	CVideoDataBuffer();
sl@0: 	
sl@0: 	void ConstructL(TUint aSize);
sl@0: 	void ConstructL(CMMFBuffer* aBuffer);
sl@0: 
sl@0: private:
sl@0: 	TUint iSize;
sl@0: 	CMMFBuffer* iMmfBuffer;
sl@0: 	TVideoInputBuffer iVideoInputBuffer;	
sl@0: 	};
sl@0: 	
sl@0: /**
sl@0: 
sl@0: */	
sl@0: class CVideoFrameBuffer : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	enum TFrameBufferState
sl@0: 		{
sl@0: 		EEmptied,
sl@0: 		EFilled
sl@0: 		};
sl@0: public:
sl@0: 	static CVideoFrameBuffer* NewL(TSize aFrameSize, TUncompressedVideoFormat aVideoFormat, TDisplayMode aDisplayMode);
sl@0: 
sl@0: 	operator CMMFBuffer&();
sl@0: 	operator CMMFBuffer*();
sl@0: 	operator TVideoPicture&();
sl@0: 	operator TVideoPicture*();
sl@0: 
sl@0: 	TBool operator ==(const CMMFBuffer* aBuffer) const;
sl@0: 	TBool operator ==(const TVideoPicture& aVideoPicture) const;
sl@0: 	
sl@0: 	void LockFrameBufferHeap();
sl@0: 	void UnlockFrameBufferHeap();
sl@0: 	void SetLastBuffer(TBool aLastBuffer);
sl@0: 	TBool LastBuffer();
sl@0: 
sl@0: 	~CVideoFrameBuffer();
sl@0: private:
sl@0: 	CVideoFrameBuffer(TSize aFrameSize, TUncompressedVideoFormat aVideoFormat, TDisplayMode aDisplayMode);
sl@0: 	
sl@0: 	void ConstructL();
sl@0: 
sl@0: 	CMMFBuffer* iMmfBuffer;
sl@0: 	TVideoPicture iVideoPicture;
sl@0: 	CFbsBitmap* iBitmap;
sl@0: 	
sl@0: 	HBufC8* iRawBuffer;
sl@0: 	TPtr8 iRawPtr;
sl@0: 	
sl@0: 	TInt iFrameBufferSize; // still need to fill this in
sl@0: 	TSize iFrameSize;
sl@0: 	TUncompressedVideoFormat iVideoFormat;
sl@0: 	TDisplayMode iDisplayMode;
sl@0: 	TBool iHeapLocked;	
sl@0: 	TBool iLastBuffer;
sl@0: 	};
sl@0: 	
sl@0: /**
sl@0: Buffer manager for video decoder hardware device.
sl@0: @internalComponent
sl@0: */
sl@0: class CMdfVideoDecoderBufferManager : public CBase 
sl@0: 	{
sl@0: 
sl@0: public:
sl@0: 	static CMdfVideoDecoderBufferManager* NewL();
sl@0: 	~CMdfVideoDecoderBufferManager();
sl@0: 
sl@0: 	void Init(const TUncompressedVideoFormat& aFormat);
sl@0: 	
sl@0: 	// data buffers (input)
sl@0: 	CVideoDataBuffer& CreateDataBufferL(TUint aSize);
sl@0: 	TInt DataBuffersAvailable() const;
sl@0: 	CVideoDataBuffer& GetDataBufferL();
sl@0: 
sl@0: 	// for convenience, allow the return of the data buffer in all permutations
sl@0: 	void ReturnDataBufferL(TVideoInputBuffer& aBuffer);
sl@0: 
sl@0: 	// frame buffer management
sl@0: 	CVideoFrameBuffer& CreateFrameBufferL(TDisplayMode aDisplayMode);
sl@0: 	
sl@0: 	CVideoFrameBuffer& GetEmptyFrameBufferL(TBool aLockHeap);
sl@0: 	CVideoFrameBuffer& GetFilledFrameBufferL(TBool aLockHeap);
sl@0: 
sl@0: 	void ReturnFrameBufferL(TVideoPicture& aPicture, CVideoFrameBuffer::TFrameBufferState aState);
sl@0: 	void ReturnFrameBufferL(CMMFBuffer* aBuffer, 
sl@0: 							CVideoFrameBuffer::TFrameBufferState aState,
sl@0: 							TBool aLastBuffer);
sl@0: 	
sl@0: 	TInt EmptyFrameBuffersAvailable() const;
sl@0: 	TInt FilledFrameBuffersAvailable() const;
sl@0: 	
sl@0: 	const TPictureData& LastPictureL() const;
sl@0: 	
sl@0: 	// getters/setters for frame attributes
sl@0: 	void SetFrameSize(const TSize& aSize);
sl@0: 	void SetFrameBufferSize(TInt aSize);	
sl@0: 	const TSize& FrameSize() const;
sl@0: 	TInt FrameBufferSize() const;
sl@0: 	TInt MaxFrameBuffers() const;
sl@0: 
sl@0: private:
sl@0: 	CMdfVideoDecoderBufferManager();
sl@0: 	
sl@0: 	TInt FindFrameBuffer(const CMMFBuffer* aBuffer) const;
sl@0: 	TInt FindFrameBuffer(const TVideoPicture& aVideoPicture) const;
sl@0: 	TInt FindFrameBuffer(const CVideoFrameBuffer& aFrameBuffer) const;
sl@0: 	
sl@0: 	void ConstructL();
sl@0: private:
sl@0: 	// the format of the incoming video
sl@0: 	TUncompressedVideoFormat iFormat;
sl@0: 	
sl@0: 	// input data buffers
sl@0: 	CVideoDataBuffer* iInputBuffer;
sl@0: 	TBool iInputBufferInUse;
sl@0: 	
sl@0: 	// output frame buffers
sl@0: 	RPointerArray<CVideoFrameBuffer> iEmptyFrameBuffers;
sl@0: 	RPointerArray<CVideoFrameBuffer> iFilledFrameBuffers;
sl@0: 
sl@0: 	RPointerArray<CVideoFrameBuffer> iFrameBuffersInUse;
sl@0: 
sl@0: 	TSize iFrameSize;
sl@0: 	TInt iFrameBufferSize;
sl@0: 	TInt iMaxFrameBuffers;
sl@0: 	
sl@0: 	// last displayed frame
sl@0: 	TPictureData iLastDisplayedFrame;
sl@0: 	
sl@0: 	};
sl@0: 
sl@0: #endif // MDFVIDEODECODERBUFFERMANAGER_H