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/*
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* Copyright (c) 2002-2003 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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*/
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#ifndef __MMF_PCM16_TO_PCMU8_HW_DEVICE_H__
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#define __MMF_PCM16_TO_PCMU8_HW_DEVICE_H__
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#include <mmf/server/mmfswcodecwrapper.h>
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#include "MMFAudioCodec.h"
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#include "MMFAudioS16ToU8PcmCodec.h"
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const TInt KPCM16ToPCMU8SourceBufferSize = 0x2000;
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const TInt KPCM16ToPCMU8SinkBufferSize = 0x1000; //sink buffer length is half source
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/*
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*
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* class CMMFPcm16ToPcmU8HwDevice
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*
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*/
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class CMMFPcm16ToPcmU8HwDevice : public CMMFSwCodecWrapper
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{
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public:
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static CMMFPcm16ToPcmU8HwDevice* NewL();
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virtual CMMFSwCodec& Codec();
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~CMMFPcm16ToPcmU8HwDevice();
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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 CMMFPcm16ToPcmU8Codec converts Pcm16 to Pcm unsigned 8 bit
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*
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*/
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class CMMFPcm16ToPcmU8Codec : 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 KPCM16ToPCMU8SourceBufferSize;};
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virtual TUint SinkBufferSize() {return KPCM16ToPCMU8SinkBufferSize;};
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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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TMMFAudioS16ToU8PcmCodec iAudioS16ToU8Pcm ;
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};
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#endif //__MMF_PCMS16_TO_PCMS8_HW_DEVICE_H__
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