os/mm/devsound/devsoundrefplugin/src/plugin/audio/mmfpcmS16PcmS8HwDevice.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#ifndef __MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__
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#define __MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__
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#include <mmf/server/mmfswcodecwrapper.h>
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#include "MMFAudioCodec.h"
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#include "MMFAudioPcmS16ToPcmS8Codec.h"
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const TInt KPCM16ToPCM8SourceBufferSize = 0x1000;
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const TInt KPCM16ToPCM8SinkBufferSize   = 0x800; 
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/*
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*
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* class CMMFPcmS16ToPcmS8HwDevice
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*
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*/
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class CMMFPcmS16ToPcmS8HwDevice: public CMMFSwCodecWrapper
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	{
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public:
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	static  CMMFPcmS16ToPcmS8HwDevice* NewL();
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	virtual CMMFSwCodec& Codec();
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	~CMMFPcmS16ToPcmS8HwDevice(); 
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private:
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	void ConstructL();
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	};
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/*
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*
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* class CMMFPcmS16ToPcmS8Codec converts Pcms16 to Pcm 8 signed
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*
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*/
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class CMMFPcmS16ToPcmS8Codec : public CMMFSwCodec
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	{
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public:
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	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);
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	virtual TUint SourceBufferSize() {return KPCM16ToPCM8SourceBufferSize;};
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	virtual TUint SinkBufferSize() {return KPCM16ToPCM8SinkBufferSize;};
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private:
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	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );
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private:
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	TMMFAudioPcmS16ToPcmS8Codec iAudioPcmS16ToPcmS8;
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	};
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#endif //__MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__
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